diff options
| author | Joshua Rowe <17525998+omnisci3nce@users.noreply.github.com> | 2024-05-20 10:50:11 +1000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-20 10:50:11 +1000 |
| commit | e904c22003c3a134201b222e6619e782fbe63947 (patch) | |
| tree | 5295c8ce5f855ca4a0f1bebe50beee80bae66682 | |
| parent | 02e84ee4d18e705e3362be1e327fdb6f1397a032 (diff) | |
| parent | 73d4145f46d2305f45761b8e456df692d1962dfb (diff) | |
Merge pull request #14 from omnisci3nce/realign
Realign
125 files changed, 9467 insertions, 1083 deletions
@@ -2,9 +2,8 @@  -Not all files are fleshed out right now. -**Work-in-progress**: porting over code from old repository. +**Work-in-progress**: This code is currently in flux as I port from OpenGL to a Vulkan backend with a homemade graphics API abstraction layer I'm developing named **RAL** (render abstraction layer) in the source code. All third-party dependencies are licensed under their own license. @@ -21,10 +20,9 @@ All third-party dependencies are licensed under their own license. * Lint (no change) `find src/ -iname *.h -o -iname *.c | xargs clang-format --style=file --dry-run --Werror` * Format (edit in place) `find src/ \( -iname "*.h" -o -iname "*.c" \) | xargs clang-format -i --style=file` * `clang-format` must be installed! - * Documentation * serve mkdocs locally * `docker run --rm -it -p 8000:8000 -v ${PWD}:/docs squidfunk/mkdocs-material` * Build docs static site - * `docker run --rm -it -v ${PWD}:/docs squidfunk/mkdocs-material build`
\ No newline at end of file + * `docker run --rm -it -v ${PWD}:/docs squidfunk/mkdocs-material build` diff --git a/assets/models/gltf/AnimatedCube/LICENSE.md b/assets/models/gltf/AnimatedCube/LICENSE.md new file mode 100644 index 0000000..c001f8f --- /dev/null +++ b/assets/models/gltf/AnimatedCube/LICENSE.md @@ -0,0 +1,15 @@ +# LICENSE file for the model: Animated Cube + +All files in this directory tree are licensed as indicated below. + +* All files directly associated with the model including all text, image and binary files: + + * [CC0 1.0 Universal]("https://creativecommons.org/publicdomain/zero/1.0/legalcode") [SPDX license identifier: "CC0-1.0"] + +* This file and all other metadocumentation files including "metadata.json": + + * [Creative Commons Attribtution 4.0 International]("https://creativecommons.org/licenses/by/4.0/legalcode") [SPDX license identifier: "CC-BY-4.0"] + +Full license text of these licenses are available at the links above + +#### Generated by modelmetadata
\ No newline at end of file diff --git a/assets/models/gltf/AnimatedCube/README.body.md b/assets/models/gltf/AnimatedCube/README.body.md new file mode 100644 index 0000000..1efdf8c --- /dev/null +++ b/assets/models/gltf/AnimatedCube/README.body.md @@ -0,0 +1,3 @@ +## Screenshot + + diff --git a/assets/models/gltf/AnimatedCube/README.md b/assets/models/gltf/AnimatedCube/README.md new file mode 100644 index 0000000..d5cf0a3 --- /dev/null +++ b/assets/models/gltf/AnimatedCube/README.md @@ -0,0 +1,27 @@ +# Animated Cube + +## Tags + +[core](../../Models-core.md), [testing](../../Models-testing.md) + +## Summary + +Same as 'Cube', but having a linear rotation animation. + +## Operations + +* [Display](https://github.khronos.org/glTF-Sample-Viewer-Release/?model=https://raw.GithubUserContent.com/KhronosGroup/glTF-Sample-Assets/main/./Models/AnimatedCube/glTF/AnimatedCube.gltf) in SampleViewer +* [Model Directory](./) + +## Screenshot + + + + +## Legal + +© 2017, UX3D. [CC0 1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/legalcode) + + - Norbert Nopper for Everything + +#### Assembled by modelmetadata
\ No newline at end of file diff --git a/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.bin b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.bin Binary files differnew file mode 100644 index 0000000..72f7d2d --- /dev/null +++ b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.bin diff --git a/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.gltf b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.gltf new file mode 100644 index 0000000..ff117b0 --- /dev/null +++ b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube.gltf @@ -0,0 +1,262 @@ +{ + "accessors" : [ + { + "bufferView" : 0, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 3, + "max" : [ + 2.000000 + ], + "min" : [ + 0.000000 + ], + "type" : "SCALAR" + }, + { + "bufferView" : 1, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 3, + "max" : [ + 0.000000, + 1.000000, + 0.000000, + 1.000000 + ], + "min" : [ + 0.000000, + -8.742278e-008, + 0.000000, + -1.000000 + ], + "type" : "VEC4" + }, + { + "bufferView" : 2, + "byteOffset" : 0, + "componentType" : 5123, + "count" : 36, + "max" : [ + 35 + ], + "min" : [ + 0 + ], + "type" : "SCALAR" + }, + { + "bufferView" : 3, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 36, + "max" : [ + 1.000000, + 1.000000, + 1.000001 + ], + "min" : [ + -1.000000, + -1.000000, + -1.000000 + ], + "type" : "VEC3" + }, + { + "bufferView" : 4, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 36, + "max" : [ + 1.000000, + 1.000000, + 1.000000 + ], + "min" : [ + -1.000000, + -1.000000, + -1.000000 + ], + "type" : "VEC3" + }, + { + "bufferView" : 5, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 36, + "max" : [ + 1.000000, + -0.000000, + -0.000000, + 1.000000 + ], + "min" : [ + 0.000000, + -0.000000, + -1.000000, + -1.000000 + ], + "type" : "VEC4" + }, + { + "bufferView" : 6, + "byteOffset" : 0, + "componentType" : 5126, + "count" : 36, + "max" : [ + 1.000000, + 1.000000 + ], + "min" : [ + -1.000000, + -1.000000 + ], + "type" : "VEC2" + } + ], + "animations" : [ + { + "channels" : [ + { + "sampler" : 0, + "target" : { + "node" : 0, + "path" : "rotation" + } + } + ], + "name" : "animation_AnimatedCube", + "samplers" : [ + { + "input" : 0, + "interpolation" : "LINEAR", + "output" : 1 + } + ] + } + ], + "asset" : { + "generator" : "VKTS glTF 2.0 exporter", + "version" : "2.0" + }, + "bufferViews" : [ + { + "buffer" : 0, + "byteLength" : 12, + "byteOffset" : 0 + }, + { + "buffer" : 0, + "byteLength" : 48, + "byteOffset" : 12 + }, + { + "buffer" : 0, + "byteLength" : 72, + "byteOffset" : 60, + "target" : 34963 + }, + { + "buffer" : 0, + "byteLength" : 432, + "byteOffset" : 132, + "target" : 34962 + }, + { + "buffer" : 0, + "byteLength" : 432, + "byteOffset" : 564, + "target" : 34962 + }, + { + "buffer" : 0, + "byteLength" : 576, + "byteOffset" : 996, + "target" : 34962 + }, + { + "buffer" : 0, + "byteLength" : 288, + "byteOffset" : 1572, + "target" : 34962 + } + ], + "buffers" : [ + { + "byteLength" : 1860, + "uri" : "AnimatedCube.bin" + } + ], + "images" : [ + { + "uri" : "AnimatedCube_BaseColor.png" + }, + { + "uri" : "AnimatedCube_MetallicRoughness.png" + } + ], + "materials" : [ + { + "name" : "AnimatedCube", + "pbrMetallicRoughness" : { + "baseColorTexture" : { + "index" : 0 + }, + "metallicRoughnessTexture" : { + "index" : 1 + } + } + } + ], + "meshes" : [ + { + "name" : "AnimatedCube", + "primitives" : [ + { + "attributes" : { + "NORMAL" : 4, + "POSITION" : 3, + "TANGENT" : 5, + "TEXCOORD_0" : 6 + }, + "indices" : 2, + "material" : 0, + "mode" : 4 + } + ] + } + ], + "nodes" : [ + { + "mesh" : 0, + "name" : "AnimatedCube", + "rotation" : [ + 0.000000, + -1.000000, + 0.000000, + 0.000000 + ] + } + ], + "samplers" : [ + {} + ], + "scene" : 0, + "scenes" : [ + { + "nodes" : [ + 0 + ] + } + ], + "textures" : [ + { + "sampler" : 0, + "source" : 0 + }, + { + "sampler" : 0, + "source" : 1 + } + ] +}
\ No newline at end of file diff --git a/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_BaseColor.png b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_BaseColor.png Binary files differnew file mode 100644 index 0000000..5e5cb20 --- /dev/null +++ b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_BaseColor.png diff --git a/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_MetallicRoughness.png b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_MetallicRoughness.png Binary files differnew file mode 100644 index 0000000..efd2026 --- /dev/null +++ b/assets/models/gltf/AnimatedCube/glTF/AnimatedCube_MetallicRoughness.png diff --git a/assets/models/gltf/AnimatedCube/metadata.json b/assets/models/gltf/AnimatedCube/metadata.json new file mode 100644 index 0000000..3af6fdb --- /dev/null +++ b/assets/models/gltf/AnimatedCube/metadata.json @@ -0,0 +1,25 @@ +{ + "version": 2, + "legal": [ + { + "license": "CC0", + "licenseUrl": "https://creativecommons.org/publicdomain/zero/1.0/legalcode", + "artist": "Norbert Nopper", + "year": "2017", + "owner": "UX3D", + "what": "Everything", + "text": "CC0 1.0 Universal", + "spdx": "CC0-1.0", + "icon": "https://licensebuttons.net/p/zero/1.0/88x31.png" + } + ], + "tags": [ + "core", + "testing" + ], + "screenshot": "screenshot/screenshot.gif", + "name": "Animated Cube", + "path": "./Models/AnimatedCube", + "summary": "Same as 'Cube', but having a linear rotation animation.", + "createReadme": true +}
\ No newline at end of file diff --git a/assets/models/gltf/AnimatedCube/screenshot/screenshot.gif b/assets/models/gltf/AnimatedCube/screenshot/screenshot.gif Binary files differnew file mode 100644 index 0000000..eea74ee --- /dev/null +++ b/assets/models/gltf/AnimatedCube/screenshot/screenshot.gif diff --git a/assets/models/gltf/SimpleSkin/LICENSE.md b/assets/models/gltf/SimpleSkin/LICENSE.md new file mode 100644 index 0000000..e602203 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/LICENSE.md @@ -0,0 +1,15 @@ +# LICENSE file for the model: Simple Skin + +All files in this directory tree are licensed as indicated below. + +* All files directly associated with the model including all text, image and binary files: + + * [CC0 1.0 Universal]("https://creativecommons.org/publicdomain/zero/1.0/legalcode") [SPDX license identifier: "CC0-1.0"] + +* This file and all other metadocumentation files including "metadata.json": + + * [Creative Commons Attribtution 4.0 International]("https://creativecommons.org/licenses/by/4.0/legalcode") [SPDX license identifier: "CC-BY-4.0"] + +Full license text of these licenses are available at the links above + +#### Generated by modelmetadata
\ No newline at end of file diff --git a/assets/models/gltf/SimpleSkin/README.body.md b/assets/models/gltf/SimpleSkin/README.body.md new file mode 100644 index 0000000..00cd41e --- /dev/null +++ b/assets/models/gltf/SimpleSkin/README.body.md @@ -0,0 +1,18 @@ +## Screenshot + + + +## Notes + +Details about skinning using this particular model are explained in the +[skinning section of the glTF tutorial](https://github.com/javagl/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_019_SimpleSkin.md). + +## Data layout + +The following images show the data layout of this sample: + + + + + + diff --git a/assets/models/gltf/SimpleSkin/README.md b/assets/models/gltf/SimpleSkin/README.md new file mode 100644 index 0000000..ec08353 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/README.md @@ -0,0 +1,42 @@ +# Simple Skin + +## Tags + +[core](../../Models-core.md), [testing](../../Models-testing.md), [written](../../Models-written.md) + +## Summary + +A simple example of vertex skinning in glTF + +## Operations + +* [Display](https://github.khronos.org/glTF-Sample-Viewer-Release/?model=https://raw.GithubUserContent.com/KhronosGroup/glTF-Sample-Assets/main/./Models/SimpleSkin/glTF/SimpleSkin.gltf) in SampleViewer +* [Model Directory](./) + +## Screenshot + + + +## Notes + +Details about skinning using this particular model are explained in the +[skinning section of the glTF tutorial](https://github.com/javagl/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_019_SimpleSkin.md). + +## Data layout + +The following images show the data layout of this sample: + + + + + + + + +## Legal + +© 2017, Public. [CC0 1.0 Universal](https://creativecommons.org/publicdomain/zero/1.0/legalcode) + + - javagl for Everything + +#### Assembled by modelmetadata
\ No newline at end of file diff --git a/assets/models/gltf/SimpleSkin/glTF-Embedded/SimpleSkin.gltf b/assets/models/gltf/SimpleSkin/glTF-Embedded/SimpleSkin.gltf new file mode 100644 index 0000000..e9f4e4d --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF-Embedded/SimpleSkin.gltf @@ -0,0 +1,131 @@ +{ + "scene" : 0, + "scenes" : [ { + "nodes" : [ 0, 1 ] + } ], + + "nodes" : [ { + "skin" : 0, + "mesh" : 0 + }, { + "children" : [ 2 ] + }, { + "translation" : [ 0.0, 1.0, 0.0 ], + "rotation" : [ 0.0, 0.0, 0.0, 1.0 ] + } ], + + "meshes" : [ { + "primitives" : [ { + "attributes" : { + "POSITION" : 1, + "JOINTS_0" : 2, + "WEIGHTS_0" : 3 + }, + "indices" : 0 + } ] + } ], + + "skins" : [ { + "inverseBindMatrices" : 4, + "joints" : [ 1, 2 ] + } ], + + "animations" : [ { + "channels" : [ { + "sampler" : 0, + "target" : { + "node" : 2, + "path" : "rotation" + } + } ], + "samplers" : [ { + "input" : 5, + "interpolation" : "LINEAR", + "output" : 6 + } ] + } ], + + "buffers" : [ { + "uri" : "data:application/gltf-buffer;base64,AAABAAMAAAADAAIAAgADAAUAAgAFAAQABAAFAAcABAAHAAYABgAHAAkABgAJAAgAAAAAvwAAAAAAAAAAAAAAPwAAAAAAAAAAAAAAvwAAAD8AAAAAAAAAPwAAAD8AAAAAAAAAvwAAgD8AAAAAAAAAPwAAgD8AAAAAAAAAvwAAwD8AAAAAAAAAPwAAwD8AAAAAAAAAvwAAAEAAAAAAAAAAPwAAAEAAAAAA", + "byteLength" : 168 + }, { + "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAABAPwAAgD4AAAAAAAAAAAAAQD8AAIA+AAAAAAAAAAAAAAA/AAAAPwAAAAAAAAAAAAAAPwAAAD8AAAAAAAAAAAAAgD4AAEA/AAAAAAAAAAAAAIA+AABAPwAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAA=", + "byteLength" : 320 + }, { + "uri" : "data:application/gltf-buffer;base64,AACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAAAAAAAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAgD8AAAAAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAIC/AAAAAAAAgD8=", + "byteLength" : 128 + }, { + "uri" : "data:application/gltf-buffer;base64,AAAAAAAAAD8AAIA/AADAPwAAAEAAACBAAABAQAAAYEAAAIBAAACQQAAAoEAAALBAAAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAPT9ND/0/TQ/AAAAAAAAAAD0/TQ/9P00PwAAAAAAAAAAkxjEPkSLbD8AAAAAAAAAAAAAAAAAAIA/AAAAAAAAAAAAAAAAAACAPwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAPT9NL/0/TQ/AAAAAAAAAAD0/TS/9P00PwAAAAAAAAAAkxjEvkSLbD8AAAAAAAAAAAAAAAAAAIA/", + "byteLength" : 240 + } ], + + "bufferViews" : [ { + "buffer" : 0, + "byteLength" : 48, + "target" : 34963 + }, { + "buffer" : 0, + "byteOffset" : 48, + "byteLength" : 120, + "target" : 34962 + }, { + "buffer" : 1, + "byteLength" : 320, + "byteStride" : 16 + }, { + "buffer" : 2, + "byteLength" : 128 + }, { + "buffer" : 3, + "byteLength" : 240 + } ], + + "accessors" : [ { + "bufferView" : 0, + "componentType" : 5123, + "count" : 24, + "type" : "SCALAR" + }, { + "bufferView" : 1, + "componentType" : 5126, + "count" : 10, + "type" : "VEC3", + "max" : [ 0.5, 2.0, 0.0 ], + "min" : [ -0.5, 0.0, 0.0 ] + }, { + "bufferView" : 2, + "componentType" : 5123, + "count" : 10, + "type" : "VEC4" + }, { + "bufferView" : 2, + "byteOffset" : 160, + "componentType" : 5126, + "count" : 10, + "type" : "VEC4" + }, { + "bufferView" : 3, + "componentType" : 5126, + "count" : 2, + "type" : "MAT4" + }, { + "bufferView" : 4, + "componentType" : 5126, + "count" : 12, + "type" : "SCALAR", + "max" : [ 5.5 ], + "min" : [ 0.0 ] + }, { + "bufferView" : 4, + "byteOffset" : 48, + "componentType" : 5126, + "count" : 12, + "type" : "VEC4", + "max" : [ 0.0, 0.0, 0.707, 1.0 ], + "min" : [ 0.0, 0.0, -0.707, 0.707 ] + } ], + + "asset" : { + "version" : "2.0" + } +}
\ No newline at end of file diff --git a/assets/models/gltf/SimpleSkin/glTF/SimpleSkin.gltf b/assets/models/gltf/SimpleSkin/glTF/SimpleSkin.gltf new file mode 100644 index 0000000..52f0aa0 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF/SimpleSkin.gltf @@ -0,0 +1,131 @@ +{ + "scene" : 0, + "scenes" : [ { + "nodes" : [ 0, 1 ] + } ], + + "nodes" : [ { + "skin" : 0, + "mesh" : 0 + }, { + "children" : [ 2 ] + }, { + "translation" : [ 0.0, 1.0, 0.0 ], + "rotation" : [ 0.0, 0.0, 0.0, 1.0 ] + } ], + + "meshes" : [ { + "primitives" : [ { + "attributes" : { + "POSITION" : 1, + "JOINTS_0" : 2, + "WEIGHTS_0" : 3 + }, + "indices" : 0 + } ] + } ], + + "skins" : [ { + "inverseBindMatrices" : 4, + "joints" : [ 1, 2 ] + } ], + + "animations" : [ { + "channels" : [ { + "sampler" : 0, + "target" : { + "node" : 2, + "path" : "rotation" + } + } ], + "samplers" : [ { + "input" : 5, + "interpolation" : "LINEAR", + "output" : 6 + } ] + } ], + + "buffers" : [ { + "uri" : "skinGeometry.bin", + "byteLength" : 168 + }, { + "uri" : "skinningData.bin", + "byteLength" : 320 + }, { + "uri" : "inverseBindMatrices.bin", + "byteLength" : 128 + }, { + "uri" : "skinAnimation.bin", + "byteLength" : 240 + } ], + + "bufferViews" : [ { + "buffer" : 0, + "byteLength" : 48, + "target" : 34963 + }, { + "buffer" : 0, + "byteOffset" : 48, + "byteLength" : 120, + "target" : 34962 + }, { + "buffer" : 1, + "byteLength" : 320, + "byteStride" : 16 + }, { + "buffer" : 2, + "byteLength" : 128 + }, { + "buffer" : 3, + "byteLength" : 240 + } ], + + "accessors" : [ { + "bufferView" : 0, + "componentType" : 5123, + "count" : 24, + "type" : "SCALAR" + }, { + "bufferView" : 1, + "componentType" : 5126, + "count" : 10, + "type" : "VEC3", + "max" : [ 0.5, 2.0, 0.0 ], + "min" : [ -0.5, 0.0, 0.0 ] + }, { + "bufferView" : 2, + "componentType" : 5123, + "count" : 10, + "type" : "VEC4" + }, { + "bufferView" : 2, + "byteOffset" : 160, + "componentType" : 5126, + "count" : 10, + "type" : "VEC4" + }, { + "bufferView" : 3, + "componentType" : 5126, + "count" : 2, + "type" : "MAT4" + }, { + "bufferView" : 4, + "componentType" : 5126, + "count" : 12, + "type" : "SCALAR", + "max" : [ 5.5 ], + "min" : [ 0.0 ] + }, { + "bufferView" : 4, + "byteOffset" : 48, + "componentType" : 5126, + "count" : 12, + "type" : "VEC4", + "max" : [ 0.0, 0.0, 0.707, 1.0 ], + "min" : [ 0.0, 0.0, -0.707, 0.707 ] + } ], + + "asset" : { + "version" : "2.0" + } +}
\ No newline at end of file diff --git a/assets/models/gltf/SimpleSkin/glTF/inverseBindMatrices.bin b/assets/models/gltf/SimpleSkin/glTF/inverseBindMatrices.bin Binary files differnew file mode 100644 index 0000000..5af0b5e --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF/inverseBindMatrices.bin diff --git a/assets/models/gltf/SimpleSkin/glTF/skinAnimation.bin b/assets/models/gltf/SimpleSkin/glTF/skinAnimation.bin Binary files differnew file mode 100644 index 0000000..ff550c6 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF/skinAnimation.bin diff --git a/assets/models/gltf/SimpleSkin/glTF/skinGeometry.bin b/assets/models/gltf/SimpleSkin/glTF/skinGeometry.bin Binary files differnew file mode 100644 index 0000000..15375c4 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF/skinGeometry.bin diff --git a/assets/models/gltf/SimpleSkin/glTF/skinningData.bin b/assets/models/gltf/SimpleSkin/glTF/skinningData.bin Binary files differnew file mode 100644 index 0000000..fd0c165 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/glTF/skinningData.bin diff --git a/assets/models/gltf/SimpleSkin/metadata.json b/assets/models/gltf/SimpleSkin/metadata.json new file mode 100644 index 0000000..764a837 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/metadata.json @@ -0,0 +1,26 @@ +{ + "version": 2, + "legal": [ + { + "license": "CC0", + "licenseUrl": "https://creativecommons.org/publicdomain/zero/1.0/legalcode", + "artist": "javagl", + "year": "2017", + "owner": "Public", + "what": "Everything", + "text": "CC0 1.0 Universal", + "spdx": "CC0-1.0", + "icon": "https://licensebuttons.net/p/zero/1.0/88x31.png" + } + ], + "tags": [ + "core", + "testing", + "written" + ], + "screenshot": "screenshot/screenshot.gif", + "name": "Simple Skin", + "path": "./Models/SimpleSkin", + "summary": "A simple example of vertex skinning in glTF", + "createReadme": true +}
\ No newline at end of file diff --git a/assets/models/gltf/SimpleSkin/screenshot/inverseBindMatrices.png b/assets/models/gltf/SimpleSkin/screenshot/inverseBindMatrices.png Binary files differnew file mode 100644 index 0000000..a069f59 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/screenshot/inverseBindMatrices.png diff --git a/assets/models/gltf/SimpleSkin/screenshot/screenshot.gif b/assets/models/gltf/SimpleSkin/screenshot/screenshot.gif Binary files differnew file mode 100644 index 0000000..c8fb353 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/screenshot/screenshot.gif diff --git a/assets/models/gltf/SimpleSkin/screenshot/skinAnimation.png b/assets/models/gltf/SimpleSkin/screenshot/skinAnimation.png Binary files differnew file mode 100644 index 0000000..20257e1 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/screenshot/skinAnimation.png diff --git a/assets/models/gltf/SimpleSkin/screenshot/skinGeometry.png b/assets/models/gltf/SimpleSkin/screenshot/skinGeometry.png Binary files differnew file mode 100644 index 0000000..2569d9f --- /dev/null +++ b/assets/models/gltf/SimpleSkin/screenshot/skinGeometry.png diff --git a/assets/models/gltf/SimpleSkin/screenshot/skinningData.png b/assets/models/gltf/SimpleSkin/screenshot/skinningData.png Binary files differnew file mode 100644 index 0000000..bd25b70 --- /dev/null +++ b/assets/models/gltf/SimpleSkin/screenshot/skinningData.png diff --git a/assets/shaders/blinn_phong.frag b/assets/shaders/blinn_phong.frag index 095b19a..a0ba905 100644 --- a/assets/shaders/blinn_phong.frag +++ b/assets/shaders/blinn_phong.frag @@ -33,6 +33,7 @@ in VS_OUT { vec3 Normal; vec2 TexCoords; vec4 FragPosLightSpace; + vec4 Color; } fs_in; // --- Uniforms @@ -55,7 +56,8 @@ void main() { result += CalcPointLight(pointLights[i], norm, fs_in.FragPos, viewDir); } - FragColor = vec4(result, 1.0); +// FragColor = vec4(result, 1.0); + FragColor = fs_in.Color + 0.5; } vec3 CalcDirLight(DirLight light, vec3 normal, vec3 viewDir) diff --git a/assets/shaders/blinn_phong.vert b/assets/shaders/blinn_phong.vert index 6028178..06dc5e7 100644 --- a/assets/shaders/blinn_phong.vert +++ b/assets/shaders/blinn_phong.vert @@ -15,6 +15,7 @@ out VS_OUT { vec3 Normal; vec2 TexCoords; vec4 FragPosLightSpace; + vec4 Color; } vs_out; void main() { @@ -22,5 +23,6 @@ void main() { vs_out.Normal = inNormal; vs_out.TexCoords = inTexCoords; vs_out.FragPosLightSpace = lightSpaceMatrix * vec4(vs_out.FragPos, 1.0); + vs_out.Color = vec4(1.0); gl_Position = projection * view * model * vec4(inPos, 1.0); }
\ No newline at end of file diff --git a/assets/shaders/cube.frag b/assets/shaders/cube.frag new file mode 100644 index 0000000..292578f --- /dev/null +++ b/assets/shaders/cube.frag @@ -0,0 +1,12 @@ +#version 450 + +layout(location = 0) in vec3 fragColor; +layout(location = 1) in vec2 fragTexCoord; + +layout(binding = 1) uniform sampler2D texSampler; + +layout(location = 0) out vec4 outColor; + +void main() { + outColor = texture(texSampler, fragTexCoord); // vec4(fragTexCoord, 0.0); +} diff --git a/assets/shaders/cube.vert b/assets/shaders/cube.vert new file mode 100644 index 0000000..dc625ec --- /dev/null +++ b/assets/shaders/cube.vert @@ -0,0 +1,21 @@ +#version 450 + +layout(binding = 0) uniform UniformBufferObject { + mat4 model; + mat4 view; + mat4 proj; +} +ubo; + +layout(location = 0) in vec3 inPosition; +layout(location = 1) in vec3 inNormal; +layout(location = 2) in vec2 inTexCoords; + +layout(location = 0) out vec3 fragColor; +layout(location = 1) out vec2 fragTexCoord; + +void main() { + gl_Position = ubo.proj * ubo.view * ubo.model * vec4(inPosition, 1.0); + fragColor = abs(inNormal); + fragTexCoord = inTexCoords; +} diff --git a/assets/shaders/object.frag b/assets/shaders/object.frag new file mode 100644 index 0000000..fa50fcf --- /dev/null +++ b/assets/shaders/object.frag @@ -0,0 +1,15 @@ +#version 450 +#extension GL_ARB_separate_shader_objects : enable + +layout(location = 0) in vec3 in_position; +layout(location = 1) in vec3 in_normal; +layout(location = 2) in vec2 in_tex_coord; + +layout(set = 0, binding = 1) uniform sampler2D texSampler; + +layout(location = 0) out vec4 out_color; + +void main() { + // out_color = vec4(1.0); + out_color = texture(texSampler, in_tex_coord); +}
\ No newline at end of file diff --git a/assets/shaders/object.vert b/assets/shaders/object.vert new file mode 100644 index 0000000..23c0ffb --- /dev/null +++ b/assets/shaders/object.vert @@ -0,0 +1,29 @@ +#version 450 +#extension GL_ARB_separate_shader_objects : enable + +layout(location = 0) in vec3 in_position; +layout(location = 1) in vec3 in_normal; +layout(location = 2) in vec2 in_tex_coord; + +layout(location = 0) out vec3 out_position; +layout(location = 1) out vec3 out_normal; +layout(location = 2) out vec2 out_tex_coord; + +layout(set = 0, binding = 0) uniform global_object_uniform { + mat4 projection; + mat4 view; +} +global_ubo; + +layout(push_constant) uniform push_constants { + mat4 model; // 64 bytes +} +u_push_constants; + +void main() { + gl_Position = global_ubo.projection * global_ubo.view * u_push_constants.model * + vec4(in_position.x, in_position.y, in_position.z, 1.0); + out_position = in_position; + out_normal = in_normal; + out_tex_coord = in_tex_coord; +}
\ No newline at end of file diff --git a/assets/shaders/skinned.vert b/assets/shaders/skinned.vert new file mode 100644 index 0000000..cb2ca85 --- /dev/null +++ b/assets/shaders/skinned.vert @@ -0,0 +1,59 @@ +#version 410 core +// Inputs +layout (location = 0) in vec3 inPos; +layout (location = 1) in vec3 inNormal; +layout (location = 2) in vec2 inTexCoords; +layout (location = 3) in ivec4 inBoneIndices; +layout (location = 4) in vec4 inWeights; + +uniform mat4 model; +uniform mat4 view; +uniform mat4 projection; +uniform mat4 lightSpaceMatrix; + +const int MAX_BONES = 100; +const int MAX_BONE_INFLUENCES = 4; +uniform mat4 boneMatrices[MAX_BONES]; // TODO! + +// Output +out VS_OUT { + vec3 FragPos; + vec3 Normal; + vec2 TexCoords; + vec4 FragPosLightSpace; + vec4 Color; +} vs_out; + +void main() { + // vec4 totalPosition = vec4(0.0f); + // for(int i = 0 ; i < MAX_BONE_INFLUENCES ; i++) { + // if(inBoneIndices[i] == 0) + // continue; + // if(inBoneIndices[i] >=MAX_BONES) + // { + // totalPosition = vec4(inPos,1.0f); + // break; + // } + // vec4 localPosition = finalBoneMatrices[inBoneIndices[i]] * vec4(inPos,1.0f); + // totalPosition += localPosition * inWeights[i]; + // vec3 localNormal = mat3(finalBoneMatrices[inBoneIndices[i]]) * inNormal; + // vs_out.Normal = localNormal; + // } + + + mat4 skinMatrix = // mat4(1.0) + // boneMatrices[int(inBoneIndices.z)]; // should just be the identtiy + inWeights.x * boneMatrices[int(inBoneIndices.x)] + + inWeights.y * boneMatrices[int(inBoneIndices.y)] + + inWeights.z * boneMatrices[int(inBoneIndices.z)] + + inWeights.w * boneMatrices[int(inBoneIndices.w)]; + + vec4 totalPosition = skinMatrix * vec4(inPos, 1.0); + + vs_out.FragPos = vec3(model * totalPosition); + // vs_out.Normal = inNormal; + vs_out.TexCoords = inTexCoords; + vs_out.FragPosLightSpace = lightSpaceMatrix * vec4(vs_out.FragPos, 1.0); + vs_out.Color = inWeights; + gl_Position = projection * view * model * totalPosition; +}
\ No newline at end of file diff --git a/assets/shaders/triangle.frag b/assets/shaders/triangle.frag new file mode 100644 index 0000000..c3ff328 --- /dev/null +++ b/assets/shaders/triangle.frag @@ -0,0 +1,6 @@ +#version 450 + +layout(location = 0) in vec3 fragColor; +layout(location = 0) out vec4 outColor; + +void main() { outColor = vec4(fragColor, 0.0); } diff --git a/assets/shaders/triangle.vert b/assets/shaders/triangle.vert new file mode 100644 index 0000000..8030561 --- /dev/null +++ b/assets/shaders/triangle.vert @@ -0,0 +1,11 @@ +#version 450 + +layout(location = 0) in vec2 inPos; +layout(location = 1) in vec3 inColor; + +layout(location = 0) out vec3 fragColor; + +void main() { + gl_Position = vec4(inPos, 0.0, 1.0); + fragColor = inColor; +} diff --git a/assets/textures/texture.jpg b/assets/textures/texture.jpg Binary files differnew file mode 100644 index 0000000..975e338 --- /dev/null +++ b/assets/textures/texture.jpg diff --git a/examples/README.md b/examples/README.md new file mode 100644 index 0000000..f289e80 --- /dev/null +++ b/examples/README.md @@ -0,0 +1,11 @@ + +### RAL examples + +These examples show off how the lowest register of rendering, the Rendering Abstraction Layer (RAL), is used to draw things to the screen. + +- triangle +- cube + +### Renderer + +The 'renderer' is the default renderer provided by Celeritas. diff --git a/examples/cube/ex_cube.c b/examples/cube/ex_cube.c new file mode 100644 index 0000000..fc59e2d --- /dev/null +++ b/examples/cube/ex_cube.c @@ -0,0 +1,158 @@ +#include <glfw3.h> + +#include "buf.h" +#include "camera.h" +#include "core.h" +#include "file.h" +#include "log.h" +#include "maths.h" +#include "maths_types.h" +#include "mem.h" +#include "primitives.h" +#include "ral.h" +#include "ral_types.h" +#include "render.h" +#include "render_types.h" + +extern core g_core; + +// Define the shader data +typedef struct mvp_uniforms { + mat4 model; + mat4 view; + mat4 projection; +} mvp_uniforms; +typedef struct my_shader_bind_group { + mvp_uniforms mvp; + texture_handle tex; +} my_shader_bind_group; + +// We also must create a function that knows how to return a `shader_data_layout` +shader_data_layout mvp_uniforms_layout(void* data) { + my_shader_bind_group* d = (my_shader_bind_group*)data; + bool has_data = data != NULL; + + shader_binding b1 = { .label = "mvp_uniforms", + .type = SHADER_BINDING_BYTES, + .stores_data = has_data, + .data = { .bytes = { .size = sizeof(mvp_uniforms) } } }; + + shader_binding b2 = { .label = "texture_sampler", + .type = SHADER_BINDING_TEXTURE, + .stores_data = has_data }; + if (has_data) { + b1.data.bytes.data = &d->mvp; + b2.data.texture.handle = d->tex; + } + return (shader_data_layout){ .name = "global_ubo", .bindings = { b1, b2 }, .bindings_count = 2 }; +} + +int main() { + core_bringup(); + arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024); + + DEBUG("render capacity %d", g_core.default_scene.renderables->capacity); + + vec3 camera_pos = vec3(2., 2., 2.); + vec3 camera_front = vec3_normalise(vec3_negate(camera_pos)); + camera cam = camera_create(camera_pos, camera_front, VEC3_Y, deg_to_rad(45.0)); + + vertex_description vertex_input = { .use_full_vertex_size = true }; + vertex_input.debug_label = "Standard Static 3D Vertex Format"; + vertex_desc_add(&vertex_input, "inPosition", ATTR_F32x3); + vertex_desc_add(&vertex_input, "inNormal", ATTR_F32x3); + vertex_desc_add(&vertex_input, "inTexCoords", ATTR_F32x2); + + shader_data mvp_uniforms_data = { .data = NULL, .shader_data_get_layout = &mvp_uniforms_layout }; + + gpu_renderpass_desc pass_description = {}; + gpu_renderpass* renderpass = gpu_renderpass_create(&pass_description); + + str8 vert_path = str8lit("build/linux/x86_64/debug/cube.vert.spv"); + str8 frag_path = str8lit("build/linux/x86_64/debug/cube.frag.spv"); + str8_opt vertex_shader = str8_from_file(&scratch, vert_path); + str8_opt fragment_shader = str8_from_file(&scratch, frag_path); + if (!vertex_shader.has_value || !fragment_shader.has_value) { + ERROR_EXIT("Failed to load shaders from disk") + } + + struct graphics_pipeline_desc pipeline_description = { + .debug_name = "Basic Pipeline", + .vertex_desc = vertex_input, + .data_layouts = { mvp_uniforms_data }, + .data_layouts_count = 1, + .vs = { .debug_name = "Triangle Vertex Shader", + .filepath = vert_path, + .code = vertex_shader.contents, + .is_spirv = true }, + .fs = { .debug_name = "Triangle Fragment Shader", + .filepath = frag_path, + .code = fragment_shader.contents, + .is_spirv = true }, + .renderpass = renderpass, + .wireframe = false, + .depth_test = false + }; + gpu_pipeline* gfx_pipeline = gpu_graphics_pipeline_create(pipeline_description); + + // Geometry + geometry_data cube_data = geo_create_cuboid(f32x3(1, 1, 1)); + mesh cube = mesh_create(&cube_data, false); + + // Texture + texture_data tex_data = texture_data_load("assets/textures/texture.jpg", false); + texture_handle texture = texture_data_upload(tex_data, true); + printf("Texture %d", texture.raw); + + // Main loop + while (!should_exit(&g_core)) { + input_update(&g_core.input); + + if (!gpu_backend_begin_frame()) { + continue; + } + gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder(); + // begin recording + gpu_cmd_encoder_begin(*enc); + gpu_cmd_encoder_begin_render(enc, renderpass); + encode_bind_pipeline(enc, PIPELINE_GRAPHICS, gfx_pipeline); + encode_set_default_settings(enc); + + static f32 x = 0.0; + x += 0.01; + quat rotation = quat_from_axis_angle(VEC3_Y, x, true); + mat4 translation = mat4_translation(vec3(-0.5, -0.5, -0.5)); + mat4 model = mat4_rotation(rotation); + model = mat4_mult(translation, model); + mat4 view, proj; + camera_view_projection(&cam, g_core.renderer.swapchain.extent.width, + g_core.renderer.swapchain.extent.height, &view, &proj); + mvp_uniforms mvp_data = { .model = model, .view = view, .projection = proj }; + my_shader_bind_group shader_bind_data = { .mvp = mvp_data, .tex = texture }; + mvp_uniforms_data.data = &shader_bind_data; + encode_bind_shader_data(enc, 0, &mvp_uniforms_data); + + // Record draw calls + // -- NEW + draw_mesh(&cube, &model); + // -- OLD + /* encode_set_vertex_buffer(enc, triangle_vert_buf); */ + /* encode_set_index_buffer(enc, triangle_index_buf); */ + /* gpu_temp_draw(6); */ + + // End recording + gpu_cmd_encoder_end_render(enc); + + gpu_cmd_buffer buf = gpu_cmd_encoder_finish(enc); + gpu_queue_submit(&buf); + // Submit + gpu_backend_end_frame(); + + // render_frame_end(&g_core.renderer); + // glfwSwapBuffers(core->renderer.window); + } + + renderer_shutdown(&g_core.renderer); + + return 0; +} diff --git a/examples/example_scene.h b/examples/example_scene.h new file mode 100644 index 0000000..eb0be18 --- /dev/null +++ b/examples/example_scene.h @@ -0,0 +1,31 @@ +#pragma once +#include "render_types.h" + +const vec3 pointlight_positions[4] = { + { 0.7, 0.2, 2.0 }, + { 2.3, -3.3, -4.0 }, + { -4.0, 2.0, -12.0 }, + { 0.0, 0.0, -3.0 }, +}; +static point_light point_lights[4]; + +static scene make_default_scene() { + directional_light dir_light = { .direction = (vec3){ -0.2, -1.0, -0.3 }, + .ambient = (vec3){ 0.2, 0.2, 0.2 }, + .diffuse = (vec3){ 0.5, 0.5, 0.5 }, + .specular = (vec3){ 1.0, 1.0, 1.0 } }; + + for (int i = 0; i < 4; i++) { + point_lights[i].position = pointlight_positions[i]; + point_lights[i].ambient = (vec3){ 0.05, 0.05, 0.05 }; + point_lights[i].diffuse = (vec3){ 0.8, 0.8, 0.8 }; + point_lights[i].specular = (vec3){ 1.0, 1.0, 1.0 }; + point_lights[i].constant = 1.0; + point_lights[i].linear = 0.09; + point_lights[i].quadratic = 0.032; + } + + scene our_scene = { .dir_light = dir_light, .n_point_lights = 4 }; + memcpy(&our_scene.point_lights, &point_lights, sizeof(point_light[4])); + return our_scene; +}
\ No newline at end of file diff --git a/examples/gltf_loading/ex_gltf_loading.c b/examples/gltf_loading/ex_gltf_loading.c index 0c47fec..fa74ada 100644 --- a/examples/gltf_loading/ex_gltf_loading.c +++ b/examples/gltf_loading/ex_gltf_loading.c @@ -1,8 +1,10 @@ #include <glfw3.h> +#include "animation.h" #include "camera.h" #include "core.h" #include "loaders.h" +#include "log.h" #include "maths.h" #include "maths_types.h" #include "render.h" @@ -52,7 +54,7 @@ int main() { scene our_scene = { .dir_light = dir_light, .n_point_lights = 4 }; memcpy(&our_scene.point_lights, &point_lights, sizeof(point_light[4])); - while (!glfwWindowShouldClose(core->renderer.window)) { + while (!should_exit(core)) { currentFrame = glfwGetTime(); deltaTime = currentFrame - lastFrame; lastFrame = currentFrame; diff --git a/examples/input/ex_input.c b/examples/input/ex_input.c new file mode 100644 index 0000000..576b364 --- /dev/null +++ b/examples/input/ex_input.c @@ -0,0 +1,120 @@ +#include <glfw3.h> + +#include "camera.h" +#include "core.h" +#include "input.h" +#include "keys.h" +#include "maths.h" +#include "maths_types.h" +#include "primitives.h" +#include "render.h" +#include "render_backend.h" +#include "render_types.h" + +typedef struct game_state { + camera camera; + vec3 camera_euler; + bool first_mouse_update; // so the camera doesnt lurch when you run the first + // process_camera_rotation +} game_state; + +void update_camera_rotation(input_state* input, game_state* game, camera* cam); + +int main() { + core* core = core_bringup(); + + vec3 cam_pos = vec3_create(5, 5, 5); + game_state game = { + .camera = camera_create(cam_pos, vec3_negate(cam_pos), VEC3_Y, deg_to_rad(45.0)), + .camera_euler = vec3_create(90, 0, 0), + .first_mouse_update = true, + }; + + // load a texture + texture tex = texture_data_load("assets/models/obj/cube/container.jpg", false); + texture_data_upload(&tex); + + printf("Starting look direction: "); + print_vec3(game.camera.front); + + // Main loop + const f32 camera_lateral_speed = 0.2; + const f32 camera_zoom_speed = 0.15; + + while (!should_exit(core)) { + input_update(&core->input); + + vec3 translation = VEC3_ZERO; + if (key_is_pressed(KEYCODE_W) || key_is_pressed(KEYCODE_KEY_UP)) { + printf("Move Forwards\n"); + translation = vec3_mult(game.camera.front, camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_S) || key_is_pressed(KEYCODE_KEY_DOWN)) { + printf("Move Backwards\n"); + translation = vec3_mult(game.camera.front, -camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_A) || key_is_pressed(KEYCODE_KEY_LEFT)) { + printf("Move Left\n"); + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, -camera_lateral_speed); + } else if (key_is_pressed(KEYCODE_D) || key_is_pressed(KEYCODE_KEY_RIGHT)) { + printf("Move Right\n"); + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, camera_lateral_speed); + } + game.camera.position = vec3_add(game.camera.position, translation); + // update_camera_rotation(&core->input, &game, &game.camera); + + // UNUSED: threadpool_process_results(&core->threadpool, 1); + + render_frame_begin(&core->renderer); + + mat4 model = mat4_translation(VEC3_ZERO); + + gfx_backend_draw_frame(&core->renderer, &game.camera, model, &tex); + + render_frame_end(&core->renderer); + } + + core_shutdown(core); + + return 0; +} + +void update_camera_rotation(input_state* input, game_state* game, camera* cam) { + float xoffset = -input->mouse.x_delta; // xpos - lastX; + float yoffset = -input->mouse.y_delta; // reversed since y-coordinates go from bottom to top + if (game->first_mouse_update) { + xoffset = 0.0; + yoffset = 0.0; + game->first_mouse_update = false; + } + + float sensitivity = 0.2f; // change this value to your liking + xoffset *= sensitivity; + yoffset *= sensitivity; + + // x = yaw + game->camera_euler.x += xoffset; + // y = pitch + game->camera_euler.y += yoffset; + // we dont update roll + + f32 yaw = game->camera_euler.x; + f32 pitch = game->camera_euler.y; + + // make sure that when pitch is out of bounds, screen doesn't get flipped + if (game->camera_euler.y > 89.0f) game->camera_euler.y = 89.0f; + if (game->camera_euler.y < -89.0f) game->camera_euler.y = -89.0f; + + vec3 front = cam->front; + front.x = cos(deg_to_rad(yaw) * cos(deg_to_rad(pitch))); + front.y = sin(deg_to_rad(pitch)); + front.z = sin(deg_to_rad(yaw)) * cos(deg_to_rad(pitch)); + + front = vec3_normalise(front); + // save it back + cam->front.x = front.x; + cam->front.y = front.y; + // roll is static + + print_vec3(cam->front); +} diff --git a/examples/main_loop/ex_main_loop.c b/examples/main_loop/ex_main_loop.c index 3b2354a..4e31313 100644 --- a/examples/main_loop/ex_main_loop.c +++ b/examples/main_loop/ex_main_loop.c @@ -1,21 +1,33 @@ #include <glfw3.h> +#include "camera.h" #include "core.h" +#include "maths.h" #include "render.h" int main() { core* core = core_bringup(); + camera camera = camera_create(vec3_create(0, 0, 20), VEC3_NEG_Z, VEC3_Y, deg_to_rad(45.0)); + // Main loop while (!glfwWindowShouldClose(core->renderer.window)) { input_update(&core->input); - threadpool_process_results(&core->threadpool, 1); + // threadpool_process_results(&core->threadpool, 1); render_frame_begin(&core->renderer); + static f32 x = 0.0; + x += 0.01; + mat4 model = mat4_translation(vec3(x, 0, 0)); + + gfx_backend_draw_frame(&core->renderer, &camera, model, NULL); + // insert work here render_frame_end(&core->renderer); + glfwSwapBuffers(core->renderer.window); + glfwPollEvents(); } return 0; diff --git a/examples/obj_loading/ex_obj_loading.c b/examples/obj_loading/ex_obj_loading.c index e225cb2..906816b 100644 --- a/examples/obj_loading/ex_obj_loading.c +++ b/examples/obj_loading/ex_obj_loading.c @@ -1,3 +1,4 @@ +#include <assert.h> #include <glfw3.h> #include <string.h> @@ -25,6 +26,7 @@ int main() { model_handle backpack_handle = model_load_obj(core, "assets/models/obj/backpack/backpack.obj", true); model* backpack = &core->models->data[backpack_handle.raw]; + assert(backpack->meshes->data->is_skinned == false); // 2. upload vertex data to gpu model_upload_meshes(&core->renderer, backpack); // 3. create a camera @@ -53,7 +55,7 @@ int main() { memcpy(&our_scene.point_lights, &point_lights, sizeof(point_light[4])); // --- Enter Main loop - while (!glfwWindowShouldClose(core->renderer.window)) { + while (!should_exit(core)) { input_update(&core->input); threadpool_process_results(&core->threadpool, 1); diff --git a/examples/property_animation/ex_property_animation.c b/examples/property_animation/ex_property_animation.c new file mode 100644 index 0000000..c548db4 --- /dev/null +++ b/examples/property_animation/ex_property_animation.c @@ -0,0 +1,103 @@ +#include <glfw3.h> + +#include "../example_scene.h" +#include "animation.h" +#include "camera.h" +#include "core.h" +#include "input.h" +#include "keys.h" +#include "log.h" +#include "maths.h" +#include "maths_types.h" +#include "primitives.h" +#include "render.h" +#include "render_backend.h" +#include "render_types.h" + +typedef struct game_state { + camera camera; + vec3 camera_euler; + bool first_mouse_update; // so the camera doesnt lurch when you run the first + // process_camera_rotation +} game_state; + +void update_camera_rotation(input_state* input, game_state* game, camera* cam); + +int main() { + double currentFrame = glfwGetTime(); + double lastFrame = currentFrame; + double deltaTime; + + core* core = core_bringup(); + + model_handle animated_cube_handle = + model_load_gltf(core, "assets/models/gltf/AnimatedCube/glTF/AnimatedCube.gltf", false); + model* cube = &core->models->data[animated_cube_handle.raw]; + model_upload_meshes(&core->renderer, cube); + + scene our_scene = make_default_scene(); + + vec3 cam_pos = vec3_create(5, 5, 5); + game_state game = { + .camera = camera_create(cam_pos, vec3_negate(cam_pos), VEC3_Y, deg_to_rad(45.0)), + .camera_euler = vec3_create(90, 0, 0), + .first_mouse_update = true, + }; + + print_vec3(game.camera.front); + + // Main loop + const f32 camera_lateral_speed = 0.2; + const f32 camera_zoom_speed = 0.15; + + // animation + animation_clip track = cube->animations->data[0]; + f64 total_time = 0.0; + + while (!should_exit(core)) { + input_update(&core->input); + + currentFrame = glfwGetTime(); + deltaTime = currentFrame - lastFrame; + lastFrame = currentFrame; + total_time += deltaTime; + printf("delta time %f\n", deltaTime); + f64 t = fmod(total_time, 1.0); + INFO("Total time: %f", t); + + vec3 translation = VEC3_ZERO; + if (key_is_pressed(KEYCODE_W) || key_is_pressed(KEYCODE_KEY_UP)) { + translation = vec3_mult(game.camera.front, camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_S) || key_is_pressed(KEYCODE_KEY_DOWN)) { + translation = vec3_mult(game.camera.front, -camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_A) || key_is_pressed(KEYCODE_KEY_LEFT)) { + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, -camera_lateral_speed); + } else if (key_is_pressed(KEYCODE_D) || key_is_pressed(KEYCODE_KEY_RIGHT)) { + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, camera_lateral_speed); + } + game.camera.position = vec3_add(game.camera.position, translation); + + // UNUSED: threadpool_process_results(&core->threadpool, 1); + + render_frame_begin(&core->renderer); + + quat rot = animation_sample(track.rotation, t).rotation; + // quat rot = quat_ident(); + transform tf = transform_create(VEC3_ZERO, rot, 1.0); + mat4 model_tf = transform_to_mat(&tf); + draw_model(&core->renderer, &game.camera, cube, &model_tf, &our_scene); + + // gfx_backend_draw_frame(&core->renderer, &game.camera, model, NULL); + + render_frame_end(&core->renderer); + } + + INFO("Shutting down"); + model_destroy(cube); + + core_shutdown(core); + + return 0; +} diff --git a/examples/skinned_animation/ex_skinned_animation.c b/examples/skinned_animation/ex_skinned_animation.c new file mode 100644 index 0000000..c31e93c --- /dev/null +++ b/examples/skinned_animation/ex_skinned_animation.c @@ -0,0 +1,122 @@ +#include <assert.h> +#include <glfw3.h> + +#include "../example_scene.h" +#include "animation.h" +#include "camera.h" +#include "core.h" +#include "input.h" +#include "keys.h" +#include "log.h" +#include "maths.h" +#include "maths_types.h" +#include "primitives.h" +#include "render.h" +#include "render_backend.h" +#include "render_types.h" + +typedef struct game_state { + camera camera; + vec3 camera_euler; + bool first_mouse_update; // so the camera doesnt lurch when you run the first + // process_camera_rotation +} game_state; + +void update_camera_rotation(input_state* input, game_state* game, camera* cam); + +int main() { + double currentFrame = glfwGetTime(); + double lastFrame = currentFrame; + double deltaTime; + + core* core = core_bringup(); + + model_handle handle = + model_load_gltf(core, "assets/models/gltf/SimpleSkin/glTF/SimpleSkin.gltf", false); + + model* simple_skin = &core->models->data[handle.raw]; + + // Okay, right here we've loaded the model. let's assert some facts + assert(simple_skin->animations->len == 1); + assert(simple_skin->animations->data[0].rotation != NULL); + assert(simple_skin->animations->data[0].translation == NULL); + assert(simple_skin->animations->data[0].scale == NULL); + + mesh* m = &simple_skin->meshes->data[0]; + assert(m->is_skinned); + assert(m->bones->len == 2); // 1 root and 1 extra joint + + // assert(false); + + model_upload_meshes(&core->renderer, simple_skin); + + scene our_scene = make_default_scene(); + + vec3 cam_pos = vec3_create(0, 5, -8); + game_state game = { + .camera = camera_create(cam_pos, vec3_negate(cam_pos), VEC3_Y, deg_to_rad(45.0)), + .camera_euler = vec3_create(90, 0, 0), + .first_mouse_update = true, + }; + + print_vec3(game.camera.front); + + // Main loop + const f32 camera_lateral_speed = 0.2; + const f32 camera_zoom_speed = 0.10; + + // animation + animation_clip track = simple_skin->animations->data[0]; + f64 total_time = 0.0; + + while (!should_exit(core)) { + input_update(&core->input); + + currentFrame = glfwGetTime(); + deltaTime = currentFrame - lastFrame; + lastFrame = currentFrame; + total_time += deltaTime; + // printf("delta time %f\n", deltaTime); + f64 t = fmod(total_time, track.rotation->max); + // INFO("Total time: %f", t); + + vec3 translation = VEC3_ZERO; + if (key_is_pressed(KEYCODE_W)) { + translation = vec3_mult(game.camera.front, camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_KEY_UP)) { + translation = vec3_mult(game.camera.up, camera_lateral_speed); + } else if (key_is_pressed(KEYCODE_KEY_DOWN)) { + translation = vec3_mult(game.camera.up, -camera_lateral_speed); + } else if (key_is_pressed(KEYCODE_S) || key_is_pressed(KEYCODE_KEY_DOWN)) { + translation = vec3_mult(game.camera.front, -camera_zoom_speed); + } else if (key_is_pressed(KEYCODE_A) || key_is_pressed(KEYCODE_KEY_LEFT)) { + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, -camera_lateral_speed); + } else if (key_is_pressed(KEYCODE_D) || key_is_pressed(KEYCODE_KEY_RIGHT)) { + vec3 lateral = vec3_normalise(vec3_cross(game.camera.front, game.camera.up)); + translation = vec3_mult(lateral, camera_lateral_speed); + } + game.camera.position = vec3_add(game.camera.position, translation); + + render_frame_begin(&core->renderer); + + // bone rotation + quat rot = animation_sample(track.rotation, t).rotation; + + m->bones->data[1].transform_components.rotation = rot; + + // quat rot = quat_ident(); + transform tf = transform_create(VEC3_ZERO, quat_ident(), 1.0); + + draw_skinned_model(&core->renderer, &game.camera, simple_skin, tf, &our_scene); + + render_frame_end(&core->renderer); + } + + INFO("Shutting down"); + model_destroy(simple_skin); + + core_shutdown(core); + + return 0; +} diff --git a/examples/transforms/ex_transforms.c b/examples/transforms/ex_transforms.c index 689c49d..fc225b4 100644 --- a/examples/transforms/ex_transforms.c +++ b/examples/transforms/ex_transforms.c @@ -5,7 +5,7 @@ #include "maths_types.h" #include "mem.h" #include "render.h" -#include "render_types.h" +// #include "render_types.h" #include "transform_hierarchy.h" const vec3 pointlight_positions[4] = { diff --git a/examples/triangle/ex_triangle.c b/examples/triangle/ex_triangle.c new file mode 100644 index 0000000..d57e224 --- /dev/null +++ b/examples/triangle/ex_triangle.c @@ -0,0 +1,104 @@ +#include <glfw3.h> + +#include "backend_vulkan.h" +#include "buf.h" +#include "camera.h" +#include "core.h" +#include "file.h" +#include "log.h" +#include "maths.h" +#include "mem.h" +#include "ral.h" +#include "ral_types.h" +#include "render.h" +#include "render_types.h" + +extern core g_core; + +const custom_vertex vertices[] = { + (custom_vertex){ .pos = vec2(-0.5, -0.5), .color = vec3(1.0, 1.0, 1.0) }, + (custom_vertex){ .pos = vec2(0.5, -0.5), .color = vec3(1.0, 0.0, 0.0) }, + (custom_vertex){ .pos = vec2(-0.5, 0.5), .color = vec3(0.0, 0.0, 1.0) }, + (custom_vertex){ .pos = vec2(0.5, 0.5), .color = vec3(0.0, 1.0, 0.0) }, +}; +const u32 indices[] = { 2, 1, 0, 1, 2, 3 }; + +int main() { + core_bringup(); + arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024); + + vertex_description vertex_input = { .use_full_vertex_size = false }; + vertex_input.debug_label = "Hello"; + vertex_desc_add(&vertex_input, "inPos", ATTR_F32x2); + vertex_desc_add(&vertex_input, "inColor", ATTR_F32x3); + + gpu_renderpass_desc pass_description = {}; + gpu_renderpass* renderpass = gpu_renderpass_create(&pass_description); + + str8 vert_path = str8lit("build/linux/x86_64/debug/triangle.vert.spv"); + str8 frag_path = str8lit("build/linux/x86_64/debug/triangle.frag.spv"); + str8_opt vertex_shader = str8_from_file(&scratch, vert_path); + str8_opt fragment_shader = str8_from_file(&scratch, frag_path); + if (!vertex_shader.has_value || !fragment_shader.has_value) { + ERROR_EXIT("Failed to load shaders from disk") + } + + struct graphics_pipeline_desc pipeline_description = { + .debug_name = "Basic Pipeline", + .vertex_desc = vertex_input, + // .data_layouts = {0}, + // .data_layouts_count = 0, + .vs = { .debug_name = "Triangle Vertex Shader", + .filepath = vert_path, + .code = vertex_shader.contents, + .is_spirv = true }, + .fs = { .debug_name = "Triangle Fragment Shader", + .filepath = frag_path, + .code = fragment_shader.contents, + .is_spirv = true }, + .renderpass = renderpass, + .wireframe = false, + .depth_test = false + }; + gpu_pipeline* gfx_pipeline = gpu_graphics_pipeline_create(pipeline_description); + + // Load triangle vertex and index data + buffer_handle triangle_vert_buf = + gpu_buffer_create(4 * sizeof(vertex), CEL_BUFFER_VERTEX, CEL_BUFFER_FLAG_GPU, vertices); + + buffer_handle triangle_index_buf = + gpu_buffer_create(sizeof(indices), CEL_BUFFER_INDEX, CEL_BUFFER_FLAG_GPU, indices); + + // Main loop + while (!should_exit()) { + input_update(&g_core.input); + + if (!gpu_backend_begin_frame()) { + continue; + } + gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder(); + // Begin recording + gpu_cmd_encoder_begin(*enc); + gpu_cmd_encoder_begin_render(enc, renderpass); + encode_bind_pipeline(enc, PIPELINE_GRAPHICS, gfx_pipeline); + encode_set_default_settings(enc); + + // Record draw calls + encode_set_vertex_buffer(enc, triangle_vert_buf); + encode_set_index_buffer(enc, triangle_index_buf); + encode_draw_indexed(enc, 6); + + // End recording + gpu_cmd_encoder_end_render(enc); + + gpu_cmd_buffer buf = gpu_cmd_encoder_finish( + enc); // Command buffer is no longer recording and is ready to submit + // Submit + gpu_queue_submit(&buf); + gpu_backend_end_frame(); + } + + renderer_shutdown(&g_core.renderer); + + return 0; +} diff --git a/include/celeritas.h b/include/celeritas.h new file mode 100644 index 0000000..9ba741b --- /dev/null +++ b/include/celeritas.h @@ -0,0 +1,65 @@ +/** + * @file celeritas.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-05-09 + * + * @copyright Copyright (c) 2024 + * + */ + +/* The Goal of this file is to test ocaml-bindgen on it to start moving development over into OCaml */ + +#include <stdbool.h> +#include <stdint.h> + + +// Forward Declarations +typedef struct core core; + +// Handles +typedef uint32_t model_handle; + +// Maths +typedef struct vec2 { float x, y; } vec2; +typedef struct vec3 { float x, y, z; } vec3; +typedef struct vec4 { float x, y, z, w; } vec4; +typedef struct mat4 { float data[16]; } mat4; +typedef struct transform3d { vec3 translation; vec4 rotation; float scale; } transform3d; + +// Lifecycle functions +void core_bringup(); +void core_shutdown(); +bool should_window_close(); + +void frame_begin(); +void frame_draw(); +void frame_end(); + +// Assets +model_handle model_load(const char* filepath); + +// Rendering +typedef struct render_entity { + model_handle model; + // TODO: material + transform3d transform; +} render_entity; + +void render_frame_begin(); + +// Scene +typedef struct directional_light {} directional_light; +typedef struct point_light {} point_light; +void scene_add_dir_light(directional_light light); +void scene_add_point_light(directional_light light); +void scene_add_model(model_handle model, transform3d transform); +bool scene_remove_model(model_handle model); + +void scene_set_model_transform(model_handle model, transform3d new_transform); +void scene_set_camera(vec3 pos, vec3 front); + +// Immediate mode drawing + +// Input
\ No newline at end of file diff --git a/scratchpad.md b/scratchpad.md deleted file mode 100644 index 19ad8b4..0000000 --- a/scratchpad.md +++ /dev/null @@ -1,71 +0,0 @@ - -```c -// engine.h -#pragma once - -#include <celstd.h> -#include <renderer.h> -#include <renderer_types.h> -#include <maths_types.h> -#include "threadpool.h" - -typedef struct frame_stats {} frame_stats; - -typedef struct engine_stats { - frame_stats frame; -} engine_stats; - -typedef struct engine { - // timing - float startTime; - float deltaTime; // time between current frame and last frame - float lastFrame; - // stats - engine_stats stats; -} engine; - -static bool engine_init(engine *engine) { - engine->startTime = glfwGetTime(); - engine->deltaTime = 0.0f; - engine->lastFrame = 0.0f; - - return true; -} - -static inline void engine_tick_start(engine *engine) { - float currentFrame = glfwGetTime(); - engine->deltaTime = currentFrame - engine->lastFrame; - engine->lastFrame = currentFrame; -} - -static inline void engine_tick_end(engine *engine) { - // TODO: clear frame stats -} - -void celeritas_print_type_sizes(); -``` - -```c -// engine.c -#include "engine.h" - -#include <stdio.h> - -#include "animation.h" -#include "application.h" - -void celeritas_print_type_sizes() { - printf("\e[1mType sizes: \e[m \n"); - printf("transform: %ld bytes\n", sizeof(transform)); - printf("mesh: %ld bytes\n", sizeof(mesh)); - printf("bh_material: %ld bytes\n", sizeof(bh_material)); - printf("animation: %ld bytes\n", sizeof(animation_clip)); - printf("model: %ld bytes\n", sizeof(model)); - printf("rend_buffer: %ld bytes\n", sizeof(rend_buffer)); - - printf("application: %ld bytes\n", sizeof(cel_application)); - printf("renderer: %ld bytes\n", sizeof(renderer)); - printf("threadpool: %ld bytes\n", sizeof(threadpool)); - printf("engine: %ld bytes\n", sizeof(engine)); -} -```
\ No newline at end of file diff --git a/scripts/api_gen/modules.md b/scripts/api_gen/modules.md new file mode 100644 index 0000000..7298844 --- /dev/null +++ b/scripts/api_gen/modules.md @@ -0,0 +1,18 @@ + + +- core lifecycle +- memory + - arena + - pool +- containers + - darray + - hashtbl + - ring_queue +- maths +- physics +- platform + - file + - path + - mutex + - thread +- threadpool
\ No newline at end of file diff --git a/scripts/api_gen/template.html b/scripts/api_gen/template.html new file mode 100644 index 0000000..1e1c7a7 --- /dev/null +++ b/scripts/api_gen/template.html @@ -0,0 +1,91 @@ +<!doctype html> +<html> +<head> + <meta charset="UTF-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <script src="https://cdn.tailwindcss.com"></script> +</head> +<body class="flex p-4 bg-neutral-800 text-neutral-200"> + <nav class="pr-8"> + <h3 class="text-sm font-semibold">Modules</h3> + <br /> + <ul class="flex flex-col"> + <li class="text-neutral-400 text-sm"><span class="pr-1">1.1</span> core lifecycle</li> + <li class="text-neutral-400 text-sm"><span class="pr-1">1.2</span> threadpool</li> + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">maths</h5> + <li class="text-neutral-400 text-sm"><span class="pr-1">1.3</span> vector</li> + <li class="text-neutral-400 text-sm"><span class="pr-1">1.4</span> quaternion</li> + <li class="text-neutral-400 text-sm"><span class="pr-1">1.5</span> matrix</li> + <!-- <li class="text-neutral-400 text-sm"><span class="pr-1">3.0</span> memory</li> --> + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">memory</h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.6</span> arena</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.7</span> pool</li> + <!-- <li class="text-neutral-400 text-sm"><span class="pr-1">4.0</span> containers</li> --> + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">containers</h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.8</span> darray</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.9</span> hashtbl</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.10</span> ring_queue</li> + + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">std</h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.11</span> str8</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.12</span> bytebuffer</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.13</span> utils</li> + + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">render</h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.14</span> ral</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.15</span> render</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.16</span> immdraw</li> + + <h5 class="text-xs text-neutral-300 tracking-wide pt-2">platform</h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.17</span> file</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.18</span> path</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.19</span> mutex</li> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.20</span> thread</li> + + <h5 class="text-xs text-neutral-300 tracking-wide pt-2"></h5> + <li class="text-neutral-400 text-sm "><span class="pr-1">1.21</span> scene</li> + +<!-- +- core lifecycle +- memory + - arena + - pool +- containers + - darray + - hashtbl + - ring_queue +- maths +- physics +- platform + - file + - path + - mutex + - thread +- threadpool + --> + </ul> + </nav> + <main class="px-8"> + <h2 class="font-semibold text-amber-400">Celeritas Core API</h2> + + <div class="my-8"></div> + <div class="bg-neutral-700 px-2 py-1 min-w-[600px]" style="font-family: monospace;"> + <span class="text-[#ECBE7B]">arena</span> + <span class="text-[#80A0C2]">arena_create</span>(<span class="text-[#D2876D]">void*</span> + <span class="text-neutral-300">backing_buffer</span>, + <span class="text-[#D2876D]">size_t</span> + <span class="text-neutral-300">capacity</span>); + </div> + <div class="bg-neutral-700 px-2 py-1 min-w-[600px]" style="font-family: monospace;"> + <span class="text-[#ECBE7B]">void*</span> + <span class="text-[#80A0C2]">arena_alloc</span>(<span class="text-[#D2876D]">arena*</span> + <span class="text-neutral-300">a</span>, + <span class="text-[#D2876D]">size_t</span> + <span class="text-neutral-300">size</span>); + </div> +<!-- void* arena_alloc(arena* a, size_t size); --> + </main> + + +</body> +</html>
\ No newline at end of file diff --git a/src/animation.c b/src/animation.c new file mode 100644 index 0000000..7a79529 --- /dev/null +++ b/src/animation.c @@ -0,0 +1,38 @@ +#include "animation.h" +#include "log.h" +#include "maths.h" + +keyframe animation_sample(animation_sampler *sampler, f32 t) { + size_t previous_index = 0; + f32 previous_time = 0.0; + // look forwards + // DEBUG("%d\n", sampler->animation.values.kind); + TRACE("Total timestamps %d", sampler->animation.n_timestamps); + for (u32 i = 0; i < sampler->animation.n_timestamps; i++) { + f32 current_time = sampler->animation.timestamps[i]; + if (current_time > t) { + break; + } + previous_time = sampler->animation.timestamps[i]; + previous_index = i; + } + + size_t next_index = (previous_index + 1) % sampler->animation.n_timestamps; + f32 next_time = sampler->animation.timestamps[next_index]; + printf("%d %f %d %f\n", previous_index, previous_time, next_index, next_time); + + keyframe prev_value = sampler->animation.values.values[previous_index]; + keyframe next_value = sampler->animation.values.values[next_index]; + + printf("%d %d\n", previous_index, next_index); + + f32 time_diff = + sampler->animation.timestamps[next_index] - sampler->animation.timestamps[previous_index]; + f32 percent = (t - previous_time) / time_diff; + + quat interpolated_rot = + quat_slerp(sampler->animation.values.values[previous_index].rotation, + sampler->animation.values.values[next_index].rotation, percent); + + return (keyframe){ .rotation = interpolated_rot }; +}
\ No newline at end of file diff --git a/src/animation.h b/src/animation.h new file mode 100644 index 0000000..5462e65 --- /dev/null +++ b/src/animation.h @@ -0,0 +1,72 @@ +#pragma once + +#include "darray.h" +#include "defines.h" +#include "maths_types.h" + +KITC_DECL_TYPED_ARRAY(f32) + +typedef enum interpolation { INTERPOLATION_LINEAR, INTERPOLATION_COUNT } interpolation; + +typedef enum keyframe_kind { + KEYFRAME_ROTATION, + KEYFRAME_TRANSLATION, + KEYFRAME_SCALE, + KEYFRAME_WEIGHTS, +} keyframe_kind; + +typedef union keyframe { + quat rotation; + vec3 translation; + vec3 scale; + float* weights; +} keyframe; + +typedef struct keyframes { + keyframe_kind kind; + keyframe* values; + size_t count; +} keyframes; + +typedef struct joint { + char* name; // optional + transform transform_components; + mat4 inverse_bind_matrix; + mat4 local_transform; +} joint; + +typedef struct animation_spline { + f32* timestamps; + size_t n_timestamps; + keyframes values; + interpolation interpolation; +} animation_spline; + +typedef struct animation_sampler { + int current_index; + f32 min; + f32 max; + animation_spline animation; +} animation_sampler; + +/** @brief Sample an animation at a given time `t` */ +keyframe animation_sample(animation_sampler* sampler, f32 t); + +typedef struct animation_clip { + // A clip contains one or more animation curves + // for now I think we can just enumerate all of the properties (assuming *only* one per type is in + // a clip) NULL = this property is not animated in this clip + animation_sampler* rotation; + animation_sampler* translation; + animation_sampler* scale; + animation_sampler* weights; +} animation_clip; + +typedef struct skinned_animation { + mat4* joint_matrices; + size_t n_joints; +} skinned_animation; + +// void animation_update_joint_matrices(animation_clip* ) + +void animation_play(animation_clip* clip);
\ No newline at end of file diff --git a/src/camera.h b/src/camera.h index f7bc6eb..ec867c5 100644 --- a/src/camera.h +++ b/src/camera.h @@ -24,4 +24,11 @@ camera camera_create(vec3 pos, vec3 front, vec3 up, f32 fov); /** @brief get a 4x4 transform matrix for the view and perspective projection */ void camera_view_projection(camera *c, f32 screen_height, f32 screen_width, mat4 *out_view, - mat4 *out_proj);
\ No newline at end of file + mat4 *out_proj); + +// TODO: Basic reusable camera controls +/* +Right click + move = pan +Left click = orbit camera +WASD = forward/backward/left/right +*/
\ No newline at end of file diff --git a/src/colours.h b/src/colours.h index bbd9476..a981c6c 100644 --- a/src/colours.h +++ b/src/colours.h @@ -12,6 +12,8 @@ typedef struct rgba { #define COLOUR_SEA_GREEN ((rgba){ 0.18, 0.77, 0.71, 1.0 }) #define COLOUR_WHITE ((rgba){ 1.0, 1.0, 1.0, 1.0 }) +#define rgba_to_vec4(color) (vec4(color.r, color.g, color.b, color.a)) + // Thanks ChatGPT #define STONE_50 ((rgba){ 0.980, 0.980, 0.976, 1.0 }) #define STONE_100 ((rgba){ 0.961, 0.961, 0.957, 1.0 }) @@ -36,3 +38,51 @@ typedef struct rgba { #define CYAN_800 ((rgba){ 0.082, 0.369, 0.459, 1.0 }) #define CYAN_900 ((rgba){ 0.086, 0.306, 0.388, 1.0 }) #define CYAN_950 ((rgba){ 0.033, 0.200, 0.263, 1.0 }) + +#define GRAY_50 ((rgba){ 0.976, 0.980, 0.984, 1.0 }) +#define GRAY_100 ((rgba){ 0.953, 0.957, 0.965, 1.0 }) +#define GRAY_200 ((rgba){ 0.898, 0.906, 0.922, 1.0 }) +#define GRAY_300 ((rgba){ 0.820, 0.835, 0.859, 1.0 }) +#define GRAY_400 ((rgba){ 0.612, 0.639, 0.686, 1.0 }) +#define GRAY_500 ((rgba){ 0.420, 0.447, 0.502, 1.0 }) +#define GRAY_600 ((rgba){ 0.294, 0.333, 0.388, 1.0 }) +#define GRAY_700 ((rgba){ 0.216, 0.255, 0.318, 1.0 }) +#define GRAY_800 ((rgba){ 0.122, 0.161, 0.216, 1.0 }) +#define GRAY_900 ((rgba){ 0.067, 0.094, 0.153, 1.0 }) +#define GRAY_950 ((rgba){ 0.012, 0.027, 0.071, 1.0 }) + +#define RED_50 ((rgba){ 0.996, 0.949, 0.949, 1.0 }) +#define RED_100 ((rgba){ 0.996, 0.886, 0.886, 1.0 }) +#define RED_200 ((rgba){ 0.996, 0.792, 0.792, 1.0 }) +#define RED_300 ((rgba){ 0.988, 0.647, 0.647, 1.0 }) +#define RED_400 ((rgba){ 0.973, 0.443, 0.443, 1.0 }) +#define RED_500 ((rgba){ 0.937, 0.267, 0.267, 1.0 }) +#define RED_600 ((rgba){ 0.863, 0.149, 0.149, 1.0 }) +#define RED_700 ((rgba){ 0.725, 0.110, 0.110, 1.0 }) +#define RED_800 ((rgba){ 0.600, 0.106, 0.106, 1.0 }) +#define RED_900 ((rgba){ 0.498, 0.114, 0.114, 1.0 }) +#define RED_950 ((rgba){ 0.271, 0.039, 0.039, 1.0 }) + +#define ORANGE_50 ((rgba){ 1.000, 0.969, 0.929, 1.0 }) +#define ORANGE_100 ((rgba){ 1.000, 0.929, 0.835, 1.0 }) +#define ORANGE_200 ((rgba){ 0.996, 0.843, 0.667, 1.0 }) +#define ORANGE_300 ((rgba){ 0.992, 0.729, 0.455, 1.0 }) +#define ORANGE_400 ((rgba){ 0.984, 0.573, 0.235, 1.0 }) +#define ORANGE_500 ((rgba){ 0.976, 0.451, 0.086, 1.0 }) +#define ORANGE_600 ((rgba){ 0.918, 0.345, 0.047, 1.0 }) +#define ORANGE_700 ((rgba){ 0.761, 0.255, 0.047, 1.0 }) +#define ORANGE_800 ((rgba){ 0.604, 0.204, 0.071, 1.0 }) +#define ORANGE_900 ((rgba){ 0.486, 0.176, 0.071, 1.0 }) +#define ORANGE_950 ((rgba){ 0.263, 0.078, 0.027, 1.0 }) + +#define AMBER_50 ((rgba){ 1.000, 0.984, 0.922, 1.0 }) +#define AMBER_100 ((rgba){ 0.996, 0.953, 0.780, 1.0 }) +#define AMBER_200 ((rgba){ 0.992, 0.902, 0.541, 1.0 }) +#define AMBER_300 ((rgba){ 0.988, 0.827, 0.302, 1.0 }) +#define AMBER_400 ((rgba){ 0.984, 0.749, 0.141, 1.0 }) +#define AMBER_500 ((rgba){ 0.961, 0.620, 0.043, 1.0 }) +#define AMBER_600 ((rgba){ 0.851, 0.467, 0.024, 1.0 }) +#define AMBER_700 ((rgba){ 0.706, 0.325, 0.035, 1.0 }) +#define AMBER_800 ((rgba){ 0.573, 0.251, 0.055, 1.0 }) +#define AMBER_900 ((rgba){ 0.471, 0.208, 0.059, 1.0 }) +#define AMBER_950 ((rgba){ 0.271, 0.102, 0.012, 1.0 }) @@ -2,33 +2,40 @@ #include <stdlib.h> +#include "glfw3.h" +#include "input.h" +#include "keys.h" #include "log.h" #include "render.h" #include "render_types.h" -#include "threadpool.h" +#include "scene.h" +// #include "threadpool.h" -#define SCR_WIDTH 1080 -#define SCR_HEIGHT 800 +#define SCR_WIDTH 1000 +#define SCR_HEIGHT 1000 -core* core_bringup() { +core g_core; /** @brief global `core` that other files can use */ + +inline core* get_global_core() { return &g_core; } + +void core_bringup() { INFO("Initiate Core bringup"); - core* c = malloc(sizeof(core)); renderer_config conf = { .window_name = { "Celeritas Engine Core" }, .scr_width = SCR_WIDTH, .scr_height = SCR_HEIGHT, .clear_colour = (vec3){ .08, .08, .1 } }; - c->renderer.config = conf; - c->renderer.backend_state = NULL; + g_core.renderer.config = conf; + g_core.renderer.backend_context = NULL; - threadpool_create(&c->threadpool, 6, 256); - threadpool_set_ctx(&c->threadpool, c); // Gives the threadpool access to the core + // threadpool_create(&c->threadpool, 6, 256); + // threadpool_set_ctx(&c->threadpool, c); // Gives the threadpool access to the core // initialise all subsystems - if (!renderer_init(&c->renderer)) { + if (!renderer_init(&g_core.renderer)) { // FATAL("Failed to start renderer"); ERROR_EXIT("Failed to start renderer\n"); } - if (!input_system_init(&c->input, c->renderer.window)) { + if (!input_system_init(&g_core.input, g_core.renderer.window)) { // the input system needs the glfw window which is created by the renderer // hence the order here is important FATAL("Failed to start input system"); @@ -45,7 +52,30 @@ core* core_bringup() { } */ - c->models = model_darray_new(10); + INFO("Creating default scene"); + scene_init(&g_core.default_scene); +} + +#include <glfw3.h> + +/* bool should_window_close(core* core) { glfwWindowShouldClose(core->renderer.window); } */ +void core_input_update() { input_update(&g_core.input); } +void core_frame_begin(core* core) { render_frame_begin(&core->renderer); } +void core_frame_end(core* core) { render_frame_end(&core->renderer); } + +void core_shutdown() { + // threadpool_destroy(&core->threadpool); + input_system_shutdown(&g_core.input); + renderer_shutdown(&g_core.renderer); +} + +bool should_exit() { + return key_just_released(KEYCODE_ESCAPE) || glfwWindowShouldClose(g_core.renderer.window); +} - return c; +void frame_begin() { + glfwPollEvents(); + render_frame_begin(&g_core.renderer); } +void frame_draw() {} +void frame_end() { render_frame_end(&g_core.renderer); } @@ -1,23 +1,38 @@ #pragma once -#include "defines.h" #include "input.h" -#include "render_types.h" +#include "scene.h" #include "screenspace.h" +#include "terrain.h" #include "text.h" -#include "threadpool.h" +// #include "threadpool.h" typedef struct core { + const char* app_name; + // foundations renderer renderer; - threadpool threadpool; + // threadpool threadpool; + // systems input_state input; text_system_state text; + terrain_state terrain; screenspace_state screenspace; + // data storage + scene default_scene; model_darray* models; } core; +core* get_global_core(); + // --- Lifecycle -core* core_bringup(); -void core_shutdown(core* core); -void core_input_update(core* core); +/** @brief Throws error if the core cannot be instantiated */ +void core_bringup(); +void core_shutdown(); +bool should_exit(); + +void frame_begin(); +void frame_draw(); +void frame_end(); + +void core_input_update(); diff --git a/src/defines.h b/src/defines.h index 52aa7b0..4b6f8c7 100644 --- a/src/defines.h +++ b/src/defines.h @@ -1,6 +1,6 @@ /** * @file defines.h - * @brief + * @brief Typedefs for common integer/floating point types and very basic macros * @date 2024-02-24 * @copyright Copyright (c) 2024 */ @@ -65,12 +65,17 @@ Renderer backend defines: */ // Platform will inform renderer backend (unless user overrides) -#if defined(CEL_PLATFORM_LINUX) || defined(CEL_PLATFORM_WINDOWS) -#define CEL_REND_BACKEND_OPENGL 1 -// #define CEL_REND_BACKEND_VULKAN 1 +#if defined(CEL_PLATFORM_LINUX) +// #define CEL_REND_BACKEND_OPENGL 1 +#define CEL_REND_BACKEND_VULKAN 1 +#endif + +#if defined(CEL_PLATFORM_WINDOWS) +// #define CEL_REND_BACKEND_DX11 1 +#define CEL_REND_BACKEND_VULKAN 1 #endif #if defined(CEL_PLATFORM_MAC) -#define CEL_REND_BACKEND_METAL 1 -// #define CEL_REND_BACKEND_OPENGL 1 +// #define CEL_REND_BACKEND_METAL 1 +#define CEL_REND_BACKEND_OPENGL 1 #endif
\ No newline at end of file @@ -38,19 +38,19 @@ void logger_shutdown(); void log_output(log_level level, const char* message, ...); -#define FATAL(message, ...) log_output(LOG_LEVEL_FATAL, message, ##__VA_ARGS__); -#define ERROR(message, ...) log_output(LOG_LEVEL_ERROR, message, ##__VA_ARGS__); -#define WARN(message, ...) log_output(LOG_LEVEL_WARN, message, ##__VA_ARGS__); -#define INFO(message, ...) log_output(LOG_LEVEL_INFO, message, ##__VA_ARGS__); +#define FATAL(message, ...) log_output(LOG_LEVEL_FATAL, message, ##__VA_ARGS__) +#define ERROR(message, ...) log_output(LOG_LEVEL_ERROR, message, ##__VA_ARGS__) +#define WARN(message, ...) log_output(LOG_LEVEL_WARN, message, ##__VA_ARGS__) +#define INFO(message, ...) log_output(LOG_LEVEL_INFO, message, ##__VA_ARGS__) #if LOG_DEBUG_ENABLED == 1 -#define DEBUG(message, ...) log_output(LOG_LEVEL_DEBUG, message, ##__VA_ARGS__); +#define DEBUG(message, ...) log_output(LOG_LEVEL_DEBUG, message, ##__VA_ARGS__) #else #define DEBUG(message, ...) #endif #if LOG_TRACE_ENABLED == 1 -#define TRACE(message, ...) log_output(LOG_LEVEL_TRACE, message, ##__VA_ARGS__); +#define TRACE(message, ...) log_output(LOG_LEVEL_TRACE, message, ##__VA_ARGS__) #else #define TRACE(message, ...) #endif
\ No newline at end of file diff --git a/src/logos/README.md b/src/logos/README.md new file mode 100644 index 0000000..25b7bef --- /dev/null +++ b/src/logos/README.md @@ -0,0 +1,6 @@ +# Logos + +Logos is the namespace for threadpool & job system code. This is not a 'system' as it is underlying core unit of the engine. + +Threadpool currently gets initialised at core bringup with a set number of threads and results are processed once per frame +on the main thread. This is subject to change but multithreading is not the highest priority right now.
\ No newline at end of file diff --git a/src/logos/jobs.h b/src/logos/jobs.h new file mode 100644 index 0000000..ef4eed7 --- /dev/null +++ b/src/logos/jobs.h @@ -0,0 +1,3 @@ +/** + * Common jobs that get run + */
\ No newline at end of file diff --git a/src/maths/maths.h b/src/maths/maths.h index 3301634..217f2e0 100644 --- a/src/maths/maths.h +++ b/src/maths/maths.h @@ -9,6 +9,7 @@ #pragma once #include <math.h> +#include <stdio.h> #include "maths_types.h" // --- Helpers @@ -20,7 +21,7 @@ // Dimension 3 static inline vec3 vec3_create(f32 x, f32 y, f32 z) { return (vec3){ x, y, z }; } -#define vec3(x, y, z) (vec3_create(x, y, z)) +#define vec3(x, y, z) ((vec3){ x, y, z }) static inline vec3 vec3_add(vec3 a, vec3 b) { return (vec3){ a.x + b.x, a.y + b.y, a.z + b.z }; } static inline vec3 vec3_sub(vec3 a, vec3 b) { return (vec3){ a.x - b.x, a.y - b.y, a.z - b.z }; } static inline vec3 vec3_mult(vec3 a, f32 s) { return (vec3){ a.x * s, a.y * s, a.z * s }; } @@ -48,10 +49,16 @@ static inline vec3 vec3_cross(vec3 a, vec3 b) { #define VEC3_Z ((vec3){ .x = 0.0, .y = 0.0, .z = 1.0 }) #define VEC3_NEG_Z ((vec3){ .x = 0.0, .y = 0.0, .z = -1.0 }) +static inline void print_vec3(vec3 v) { printf("{ x: %f, y: %f, z: %f )\n", v.x, v.y, v.z); } + // TODO: Dimension 2 static inline vec2 vec2_create(f32 x, f32 y) { return (vec2){ x, y }; } +#define vec2(x, y) ((vec2){ x, y }) +static inline vec2 vec2_div(vec2 a, f32 s) { return (vec2){ a.x / s, a.y / s }; } // TODO: Dimension 4 +static inline vec4 vec4_create(f32 x, f32 y, f32 z, f32 w) { return (vec4){ x, y, z, w }; } +#define vec4(x, y, z, w) (vec4_create(x, y, z, w)) #define VEC4_ZERO ((vec4){ .x = 0.0, .y = 0.0, .z = 0.0, .w = 0.0 }) // --- Quaternion Implementations @@ -78,6 +85,52 @@ static quat quat_from_axis_angle(vec3 axis, f32 angle, bool normalize) { return q; } +// TODO: grok this. +static inline quat quat_slerp(quat a, quat b, f32 percentage) { + quat out_quaternion; + + quat q0 = quat_normalise(a); + quat q1 = quat_normalise(b); + + // Compute the cosine of the angle between the two vectors. + f32 dot = quat_dot(q0, q1); + + // If the dot product is negative, slerp won't take + // the shorter path. Note that v1 and -v1 are equivalent when + // the negation is applied to all four components. Fix by + // reversing one quaternion. + if (dot < 0.0f) { + q1.x = -q1.x; + q1.y = -q1.y; + q1.z = -q1.z; + q1.w = -q1.w; + dot = -dot; + } + + const f32 DOT_THRESHOLD = 0.9995f; + if (dot > DOT_THRESHOLD) { + // If the inputs are too close for comfort, linearly interpolate + // and normalize the result. + out_quaternion = + (quat){ q0.x + ((q1.x - q0.x) * percentage), q0.y + ((q1.y - q0.y) * percentage), + q0.z + ((q1.z - q0.z) * percentage), q0.w + ((q1.w - q0.w) * percentage) }; + + return quat_normalise(out_quaternion); + } + + // Since dot is in range [0, DOT_THRESHOLD], acos is safe + f32 theta_0 = cos(dot); // theta_0 = angle between input vectors + f32 theta = theta_0 * percentage; // theta = angle between v0 and result + f32 sin_theta = sin(theta); // compute this value only once + f32 sin_theta_0 = sin(theta_0); // compute this value only once + + f32 s0 = cos(theta) - dot * sin_theta / sin_theta_0; // == sin(theta_0 - theta) / sin(theta_0) + f32 s1 = sin_theta / sin_theta_0; + + return (quat){ (q0.x * s0) + (q1.x * s1), (q0.y * s0) + (q1.y * s1), (q0.z * s0) + (q1.z * s1), + (q0.w * s0) + (q1.w * s1) }; +} + // --- Matrix Implementations static inline mat4 mat4_ident() { @@ -139,6 +192,43 @@ static inline mat4 mat4_mult(mat4 lhs, mat4 rhs) { return out_matrix; } +static mat4 mat4_transposed(mat4 matrix) { + mat4 out_matrix = mat4_ident(); + out_matrix.data[0] = matrix.data[0]; + out_matrix.data[1] = matrix.data[4]; + out_matrix.data[2] = matrix.data[8]; + out_matrix.data[3] = matrix.data[12]; + out_matrix.data[4] = matrix.data[1]; + out_matrix.data[5] = matrix.data[5]; + out_matrix.data[6] = matrix.data[9]; + out_matrix.data[7] = matrix.data[13]; + out_matrix.data[8] = matrix.data[2]; + out_matrix.data[9] = matrix.data[6]; + out_matrix.data[10] = matrix.data[10]; + out_matrix.data[11] = matrix.data[14]; + out_matrix.data[12] = matrix.data[3]; + out_matrix.data[13] = matrix.data[7]; + out_matrix.data[14] = matrix.data[11]; + out_matrix.data[15] = matrix.data[15]; + return out_matrix; +} + +#if defined(CEL_REND_BACKEND_VULKAN) +/** @brief Creates a perspective projection matrix compatible with Vulkan */ +static inline mat4 mat4_perspective(f32 fov_radians, f32 aspect_ratio, f32 near_clip, + f32 far_clip) { + f32 half_tan_fov = tanf(fov_radians * 0.5f); + mat4 out_matrix = { .data = { 0 } }; + + out_matrix.data[0] = 1.0f / (aspect_ratio * half_tan_fov); + out_matrix.data[5] = -1.0f / half_tan_fov; // Flip Y-axis for Vulkan + out_matrix.data[10] = -((far_clip + near_clip) / (far_clip - near_clip)); + out_matrix.data[11] = -1.0f; + out_matrix.data[14] = -((2.0f * far_clip * near_clip) / (far_clip - near_clip)); + + return out_matrix; +} +#else /** @brief Creates a perspective projection matrix */ static inline mat4 mat4_perspective(f32 fov_radians, f32 aspect_ratio, f32 near_clip, f32 far_clip) { @@ -151,6 +241,7 @@ static inline mat4 mat4_perspective(f32 fov_radians, f32 aspect_ratio, f32 near_ out_matrix.data[14] = -((2.0f * far_clip * near_clip) / (far_clip - near_clip)); return out_matrix; } +#endif /** @brief Creates an orthographic projection matrix */ static inline mat4 mat4_orthographic(f32 left, f32 right, f32 bottom, f32 top, f32 near_clip, @@ -210,7 +301,7 @@ static inline mat4 mat4_look_at(vec3 position, vec3 target, vec3 up) { #define TRANSFORM_DEFAULT \ ((transform){ .position = VEC3_ZERO, \ - .rotation = (quat){ .x = 0., .y = 0., .z = 0., .w = 0. }, \ + .rotation = (quat){ .x = 0., .y = 0., .z = 0., .w = 1. }, \ .scale = 1.0, \ .is_dirty = false }) @@ -219,10 +310,10 @@ static transform transform_create(vec3 pos, quat rot, f32 scale) { } static inline mat4 transform_to_mat(transform *tf) { - mat4 trans = mat4_translation(tf->position); - mat4 rot = mat4_rotation(tf->rotation); mat4 scale = mat4_scale(tf->scale); - return mat4_mult(trans, mat4_mult(rot, scale)); + mat4 rotation = mat4_rotation(tf->rotation); + mat4 translation = mat4_translation(tf->position); + return mat4_mult(translation, mat4_mult(rotation, scale)); } // --- Sizing asserts @@ -231,20 +322,3 @@ _Static_assert(alignof(vec3) == 4, "vec3 is 4 byte aligned"); _Static_assert(sizeof(vec3) == 12, "vec3 is 12 bytes so has no padding"); _Static_assert(alignof(vec4) == 4, "vec4 is 4 byte aligned"); - -// --- Some other types -typedef struct u32x3 { - union { - struct { - u32 x; - u32 y; - u32 z; - }; - struct { - u32 r; - u32 g; - u32 b; - }; - }; -} u32x3; -#define u32x3(x, y, z) ((u32x3){ x, y, z }) diff --git a/src/maths/maths_types.h b/src/maths/maths_types.h index ba741b9..5ef09db 100644 --- a/src/maths/maths_types.h +++ b/src/maths/maths_types.h @@ -60,4 +60,44 @@ typedef struct transform { quat rotation; f32 scale; bool is_dirty; -} transform;
\ No newline at end of file +} transform; +typedef transform transform3d; + +typedef struct vec4i { + i32 x, y, z, w; +} vec4i; + +typedef struct vec4u { + u32 x, y, z, w; +} vec4u; + +// --- Some other types +typedef struct u32x3 { + union { + struct { + u32 x; + u32 y; + u32 z; + }; + struct { + u32 r; + u32 g; + u32 b; + }; + }; +} u32x3; +#define u32x3(x, y, z) ((u32x3){ x, y, z }) + +typedef struct u32x2 { + u32 x; + u32 y; +} u32x2; +#define u32x2(x, y) ((u32x3){ x, y }) + +// Type aliass + +typedef struct vec2 f32x2; +#define f32x2(x, y) ((f32x2){ x, y }) + +typedef struct vec3 f32x3; +#define f32x3(x, y, z) ((f32x3){ x, y, z }) diff --git a/src/maths/primitives.c b/src/maths/primitives.c new file mode 100644 index 0000000..b9ec868 --- /dev/null +++ b/src/maths/primitives.c @@ -0,0 +1,138 @@ +#include "primitives.h" +#include "colours.h" +#include "maths.h" +#include "ral_types.h" +#include "render_types.h" + +// TODO: move to another file +void geo_free_data(geometry_data* geo) { + vertex_darray_free(geo->vertices); + geo->vertices = NULL; + // TODO: do indices as well + /* if (geo->has_indices) { */ + /* u32_darray_free(&geo->indices); */ + /* } */ +} + +// vertices +f32 plane_vertex_positions[] = { + // triangle 1 + -0.5, 0, -0.5, -0.5, 0, 0.5, 0.5, 0, -0.5, + // triangle 2 + 0.5, 0, -0.5, -0.5, 0, 0.5, 0.5, 0, 0.5 +}; + +geometry_data geo_create_plane(f32x2 extents) { + f32x2 half_extents = vec2_div(extents, 2.0); + vertex_format format = VERTEX_STATIC_3D; + vertex_darray* vertices = vertex_darray_new(4); + + // vertex_darray_push(vertices, (vertex){ .static_3d = { .position = } }); + + // return (geometry_data) { .format = format, .vertices =.has_indices = true, } +} + +// OLD + +static const vec3 BACK_BOT_LEFT = (vec3){ 0, 0, 0 }; +static const vec3 BACK_BOT_RIGHT = (vec3){ 1, 0, 0 }; +static const vec3 BACK_TOP_LEFT = (vec3){ 0, 1, 0 }; +static const vec3 BACK_TOP_RIGHT = (vec3){ 1, 1, 0 }; +static const vec3 FRONT_BOT_LEFT = (vec3){ 0, 0, 1 }; +static const vec3 FRONT_BOT_RIGHT = (vec3){ 1, 0, 1 }; +static const vec3 FRONT_TOP_LEFT = (vec3){ 0, 1, 1 }; +static const vec3 FRONT_TOP_RIGHT = (vec3){ 1, 1, 1 }; + +#define VERT_3D(arr, pos, norm, uv) \ + { \ + vertex v = { .static_3d = { .position = pos, .normal = norm, .tex_coords = uv } }; \ + vertex_darray_push(arr, v); \ + } + +geometry_data geo_create_cuboid(f32x3 extents) { + /* static mesh prim_cube_mesh_create() { */ + vertex_darray* vertices = vertex_darray_new(36); + + // back faces + VERT_3D(vertices, BACK_TOP_RIGHT, VEC3_NEG_Z, vec2(1, 0)); + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_Z, vec2(0, 1)); + VERT_3D(vertices, BACK_TOP_LEFT, VEC3_NEG_Z, vec2(0, 0)); + VERT_3D(vertices, BACK_TOP_RIGHT, VEC3_NEG_Z, vec2(1, 0)); + VERT_3D(vertices, BACK_BOT_RIGHT, VEC3_NEG_Z, vec2(1, 1)); + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_Z, vec2(0, 1)); + + // front faces + VERT_3D(vertices, FRONT_BOT_LEFT, VEC3_Z, vec2(0, 1)); + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_Z, vec2(1, 0)); + VERT_3D(vertices, FRONT_TOP_LEFT, VEC3_Z, vec2(0, 0)); + VERT_3D(vertices, FRONT_BOT_LEFT, VEC3_Z, vec2(0, 1)); + VERT_3D(vertices, FRONT_BOT_RIGHT, VEC3_Z, vec2(1, 1)); + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_Z, vec2(1, 0)); + + // top faces + VERT_3D(vertices, BACK_TOP_LEFT, VEC3_Y, vec2(0, 0)); + VERT_3D(vertices, FRONT_TOP_LEFT, VEC3_Y, vec2(0, 1)); + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_Y, vec2(1, 1)); + VERT_3D(vertices, BACK_TOP_LEFT, VEC3_Y, vec2(0, 0)); + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_Y, vec2(1, 1)); + VERT_3D(vertices, BACK_TOP_RIGHT, VEC3_Y, vec2(1, 0)); + + // bottom faces + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_Y, vec2(0, 1)); + VERT_3D(vertices, FRONT_BOT_RIGHT, VEC3_NEG_Y, vec2(1, 1)); + VERT_3D(vertices, FRONT_BOT_LEFT, VEC3_NEG_Y, vec2(0, 1)); + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_Y, vec2(0, 1)); + VERT_3D(vertices, BACK_BOT_RIGHT, VEC3_NEG_Y, vec2(1, 1)); + VERT_3D(vertices, FRONT_BOT_RIGHT, VEC3_NEG_Y, vec2(0, 1)); + + // right faces + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_X, vec2(0, 0)); + VERT_3D(vertices, BACK_BOT_RIGHT, VEC3_X, vec2(1, 1)); + VERT_3D(vertices, BACK_TOP_RIGHT, VEC3_X, vec2(1, 0)); + VERT_3D(vertices, BACK_BOT_RIGHT, VEC3_X, vec2(1, 1)); + VERT_3D(vertices, FRONT_TOP_RIGHT, VEC3_X, vec2(0, 0)); + VERT_3D(vertices, FRONT_BOT_RIGHT, VEC3_X, vec2(0, 1)); + + // left faces + VERT_3D(vertices, FRONT_TOP_LEFT, VEC3_NEG_X, vec2(0, 0)); + VERT_3D(vertices, BACK_TOP_LEFT, VEC3_NEG_X, vec2(0, 0)); + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_X, vec2(0, 0)); + VERT_3D(vertices, BACK_BOT_LEFT, VEC3_NEG_X, vec2(0, 0)); + VERT_3D(vertices, FRONT_BOT_LEFT, VEC3_NEG_X, vec2(0, 0)); + VERT_3D(vertices, FRONT_TOP_LEFT, VEC3_NEG_X, vec2(0, 0)); + + u32_darray* indices = u32_darray_new(vertices->len); + + for (u32 i = 0; i < vertices->len; i++) { + u32_darray_push(indices, i); + } + + geometry_data geo = { + .format = VERTEX_STATIC_3D, + .vertices = vertices, + .has_indices = true, + .indices = *indices, // FIXME: make darray methods that return stack allocated struct + .colour = vec3(0, 0, 0), + }; + + return geo; +} + +/* /\** @brief create a new model with the shape of a cube *\/ */ +/* static model_handle prim_cube_new(core* core) { */ +/* model model = { 0 }; */ +/* mesh cube = prim_cube_mesh_create(); */ + +/* mesh_darray_push(model.meshes, cube); */ +/* assert(mesh_darray_len(model.meshes) == 1); */ + +/* u32 index = (u32)model_darray_len(core->models); */ +/* model_darray_push_copy(core->models, &model); */ +/* return (model_handle){ .raw = index }; */ +/* } */ + +// --- Spheres + +geometry_data geo_create_uvsphere(f32 radius, f32 north_south_lines, f32 east_west_lines) { + // TODO +} diff --git a/src/maths/primitives.h b/src/maths/primitives.h new file mode 100644 index 0000000..3e0cc5f --- /dev/null +++ b/src/maths/primitives.h @@ -0,0 +1,13 @@ +#pragma once + +#include <assert.h> +#include <stdlib.h> +#include "core.h" +#include "maths_types.h" +#include "render_types.h" + +geometry_data geo_create_plane(f32x2 extents); +geometry_data geo_create_cuboid(f32x3 extents); +geometry_data geo_create_cylinder(f32 radius, f32 height, u32 resolution); +geometry_data geo_create_uvsphere(f32 radius, f32 north_south_lines, f32 east_west_lines); +geometry_data geo_create_icosphere(f32 radius, f32 n_subdivisions);
\ No newline at end of file diff --git a/src/physics/broadphase.h b/src/physics/broadphase.h new file mode 100644 index 0000000..8b49716 --- /dev/null +++ b/src/physics/broadphase.h @@ -0,0 +1,10 @@ +/** + * @file broadphase.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-05-12 + * + * @copyright Copyright (c) 2024 + * + */
\ No newline at end of file diff --git a/src/physics/collision.h b/src/physics/collision.h new file mode 100644 index 0000000..cca6042 --- /dev/null +++ b/src/physics/collision.h @@ -0,0 +1,30 @@ +/** + * @file collision.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-05-12 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once +#include "geometry.h" + +enum collider_type { + cuboid_collider, + sphere_collider, +}; + +/** @brief generic collider structure */ +typedef struct physics_collider { + u64 id; // ? Replace with handle? + enum collider_type shape; + union collider_data { + cuboid cuboid; + sphere sphere; + } geometry; + transform transform; + u8 layer; + bool on_ground; +} physics_collider;
\ No newline at end of file diff --git a/src/physics/narrowphase.h b/src/physics/narrowphase.h new file mode 100644 index 0000000..2368c49 --- /dev/null +++ b/src/physics/narrowphase.h @@ -0,0 +1,10 @@ +/** + * @file narrowphase.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-05-12 + * + * @copyright Copyright (c) 2024 + * + */
\ No newline at end of file diff --git a/src/physics/physics.c b/src/physics/physics.c new file mode 100644 index 0000000..299c0c1 --- /dev/null +++ b/src/physics/physics.c @@ -0,0 +1 @@ +#include "physics.h"
\ No newline at end of file diff --git a/src/physics/physics.h b/src/physics/physics.h new file mode 100644 index 0000000..e0e3b89 --- /dev/null +++ b/src/physics/physics.h @@ -0,0 +1,23 @@ +#pragma once + +#include "geometry.h" +#include "maths_types.h" + +// 'system' means that it gets called per frame + +typedef struct physics_settings { + f32 gravity_strength; +} physics_settings; + +// What else do I need? +// intersection methods + +typedef struct physics_world { + physics_settings settings; +} physics_world; + +physics_world physics_init(physics_settings settings); +void physics_shutdown(physics_world* phys_world); + +/** @brief perform one or more simulation steps */ +void physics_system_update(physics_world* phys_world, f64 deltatime);
\ No newline at end of file diff --git a/src/platform/file.c b/src/platform/file.c index ec9259a..6030620 100644 --- a/src/platform/file.c +++ b/src/platform/file.c @@ -61,3 +61,33 @@ str8_opt str8_from_file(arena *a, str8 path) { return result; } + +FileData load_spv_file(const char *path) { + FILE *f = fopen(path, "rb"); + if (f == NULL) { + perror("Error opening file"); + return (FileData){ NULL, 0 }; + } + + fseek(f, 0, SEEK_END); + long fsize = ftell(f); + rewind(f); + + char *data = (char *)malloc(fsize); + if (data == NULL) { + perror("Memory allocation failed"); + fclose(f); + return (FileData){ NULL, 0 }; + } + + size_t bytesRead = fread(data, 1, fsize, f); + if (bytesRead < fsize) { + perror("Failed to read the entire file"); + free(data); + fclose(f); + return (FileData){ NULL, 0 }; + } + + fclose(f); + return (FileData){ data, bytesRead }; +}
\ No newline at end of file diff --git a/src/platform/file.h b/src/platform/file.h index 8bb22c8..a8aa8ea 100644 --- a/src/platform/file.h +++ b/src/platform/file.h @@ -16,4 +16,11 @@ typedef struct str8_opt { const char* string_from_file(const char* path); -str8_opt str8_from_file(arena* a, str8 path);
\ No newline at end of file +str8_opt str8_from_file(arena* a, str8 path); + +typedef struct { + char* data; + size_t size; +} FileData; + +FileData load_spv_file(const char* path);
\ No newline at end of file diff --git a/src/platform/mutex.c b/src/platform/mutex.c new file mode 100644 index 0000000..2aeb825 --- /dev/null +++ b/src/platform/mutex.c @@ -0,0 +1,9 @@ +#include "mutex.h" + +#if defined(CEL_PLATFORM_LINUX) || defined(CEL_PLATFORM_MAC) +// TODO: implement in terms of pthreads +#endif + +#if defined(CEL_PLATFORM_WINDOWS) +// TODO: implement using win32 api +#endif
\ No newline at end of file diff --git a/src/platform/mutex.h b/src/platform/mutex.h new file mode 100644 index 0000000..a0a4208 --- /dev/null +++ b/src/platform/mutex.h @@ -0,0 +1,28 @@ +/** + * @file mutex.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ +#include <stdbool.h> + +typedef struct cel_mutex cel_mutex; + +cel_mutex mutex_create(); + +void mutex_destroy(cel_mutex* mutex); + +/** @brief Blocks until the mutex can be acquired. if returns false then an error occurred and can + * be checked (TODO) */ +bool mutex_lock(cel_mutex* mutex); + +/** @brief Tries to acquire the mutex like `mutex_lock` but returns immediately if the mutex has + * already been locked */ +bool mutex_try_lock(cel_mutex* mutex); + +/** @brief Releases a mutex. If it is already unlocked then does nothing */ +void mutex_unlock(cel_mutex* mutex);
\ No newline at end of file diff --git a/src/platform/path.c b/src/platform/path.c index 9572941..e49aa3a 100644 --- a/src/platform/path.c +++ b/src/platform/path.c @@ -1,12 +1,12 @@ #include "path.h" -#include <libgen.h> #include <stdlib.h> #include <string.h> #include "mem.h" #include "str.h" #if defined(CEL_PLATFORM_LINUX) || defined(CEL_PLATFORM_MAC) +#include <libgen.h> path_opt path_parent(arena* a, const char* path) { // Duplicate the string because dirname doesnt like const literals char* path_copy = arena_alloc(a, strlen(path) + 1); @@ -16,5 +16,5 @@ path_opt path_parent(arena* a, const char* path) { } #endif #ifdef CEL_PLATFORM_WINDOWS -// TODO: path_opt path_parent(const char* path) -#endif
\ No newline at end of file +path_opt path_parent(arena* a, const char* path) {} +#endif diff --git a/src/platform/thread.c b/src/platform/thread.c new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/src/platform/thread.c diff --git a/src/platform/thread.h b/src/platform/thread.h new file mode 100644 index 0000000..af07d3f --- /dev/null +++ b/src/platform/thread.h @@ -0,0 +1,17 @@ +/** + * @file thread.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ + +typedef struct cel_thread cel_thread; + +cel_thread thread_create(); +void thread_destroy(cel_thread* thread); + +// join
\ No newline at end of file diff --git a/src/renderer/archive/old_backend_vulkan.c b/src/renderer/archive/old_backend_vulkan.c new file mode 100644 index 0000000..a18ca70 --- /dev/null +++ b/src/renderer/archive/old_backend_vulkan.c @@ -0,0 +1,1990 @@ +#include "camera.h" +#include "primitives.h" +#define CDEBUG +#define CEL_REND_BACKEND_VULKAN 1 +#if CEL_REND_BACKEND_VULKAN +// ^ Temporary + +#include <assert.h> +#include <stdbool.h> +#include <stdint.h> +#include <string.h> +#include <vk_platform.h> +#include <vulkan.h> +#include <vulkan_core.h> +#include "colours.h" +#include "str.h" + +#include "darray.h" +#include "defines.h" +#include "file.h" +#include "log.h" +#include "maths.h" +#include "maths_types.h" +#include "render_backend.h" +#include "render_types.h" +// #include "vulkan_helpers.h" + +#include <stdlib.h> + +#define SCR_WIDTH 1000 +#define SCR_HEIGHT 1000 + +#include <glad/glad.h> + +#include <glfw3.h> + +KITC_DECL_TYPED_ARRAY(VkLayerProperties) + +typedef struct vulkan_device { + VkPhysicalDevice physical_device; + VkDevice logical_device; + vulkan_swapchain_support_info swapchain_support; + i32 graphics_queue_index; + i32 present_queue_index; + i32 compute_queue_index; + i32 transfer_queue_index; + VkQueue graphics_queue; + VkQueue present_queue; + VkQueue compute_queue; + VkQueue transfer_queue; + VkCommandPool gfx_command_pool; + VkPhysicalDeviceProperties properties; + VkPhysicalDeviceFeatures features; + VkPhysicalDeviceMemoryProperties memory; + VkFormat depth_format; +} vulkan_device; + +typedef struct vulkan_image { + VkImage handle; + VkDeviceMemory memory; + VkImageView view; + u32 width; + u32 height; +} vulkan_image; + +typedef struct vulkan_texture_data { + vulkan_image image; + VkSampler sampler; +} vulkan_texture_data; + +typedef enum vulkan_renderpass_state { + READY, + RECORDING, + IN_RENDER_PASS, + RECORDING_ENDING, + SUBMITTED, + NOT_ALLOCATED +} vulkan_renderpass_state; + +typedef struct vulkan_renderpass { + VkRenderPass handle; + vec4 render_area; + vec4 clear_colour; + f32 depth; + u32 stencil; + vulkan_renderpass_state state; +} vulkan_renderpass; + +typedef struct vulkan_framebuffer { + VkFramebuffer handle; + u32 attachment_count; + VkImageView* attachments; + vulkan_renderpass* renderpass; +} vulkan_framebuffer; + +KITC_DECL_TYPED_ARRAY(vulkan_framebuffer) + +typedef struct vulkan_swapchain { + VkSurfaceFormatKHR image_format; + u8 max_frames_in_flight; + VkSwapchainKHR handle; + u32 image_count; + VkImage* images; + VkImageView* views; + vulkan_image depth_attachment; + vulkan_framebuffer_darray* framebuffers; +} vulkan_swapchain; + +// overengineered +typedef enum vulkan_command_buffer_state { + COMMAND_BUFFER_STATE_READY, + COMMAND_BUFFER_STATE_IN_RENDER_PASS, + COMMAND_BUFFER_STATE_RECORDING, + COMMAND_BUFFER_STATE_RECORDING_ENDED, + COMMAND_BUFFER_STATE_SUBMITTED, + COMMAND_BUFFER_STATE_NOT_ALLOCATED, +} vulkan_command_buffer_state; + +typedef struct vulkan_command_buffer { + VkCommandBuffer handle; + vulkan_command_buffer_state state; +} vulkan_command_buffer; + +KITC_DECL_TYPED_ARRAY(vulkan_command_buffer) + +typedef struct vulkan_fence { + VkFence handle; + bool is_signaled; +} vulkan_fence; + +typedef struct vulkan_shader_stage { + VkShaderModuleCreateInfo create_info; + VkShaderModule handle; + VkPipelineShaderStageCreateInfo stage_create_info; +} vulkan_shader_stage; + +typedef struct vulkan_pipeline { + VkPipeline handle; + VkPipelineLayout layout; +} vulkan_pipeline; + +typedef struct global_object_uniform { + mat4 projection; // 64 bytes + mat4 view; // 64 bytes + f32 padding[32]; +} global_object_uniform; + +typedef struct object_uniform { + vec4 diffuse_colour; + vec4 v_reserved0; + vec4 v_reserved1; + vec4 v_reserved2; +} object_uniform; + +#define MAX_OBJECT_COUNT 1024 +#define VULKAN_OBJECT_SHADER_DESCRIPTOR_COUNT 1 + +typedef struct geometry_render_data { + u32 id; + mat4 model; + texture* textures[16]; +} geometry_render_data; + +typedef struct vulkan_buffer { + u64 total_size; + VkBuffer handle; + VkBufferUsageFlagBits usage; + bool is_locked; + VkDeviceMemory memory; + i32 memory_index; + u32 memory_property_flags; +} vulkan_buffer; + +#define SHADER_STAGE_COUNT 2 + +typedef struct vulkan_shader { + // vertex, fragment + vulkan_shader_stage stages[SHADER_STAGE_COUNT]; + vulkan_pipeline pipeline; + + // descriptors + VkDescriptorPool descriptor_pool; + VkDescriptorSetLayout descriptor_set_layout; + VkDescriptorSet descriptor_sets[3]; // one for each in-flight frame + + vulkan_buffer global_uniforms_buffer; + + // Data that's global for all objects drawn + global_object_uniform global_ubo; + object_uniform object_ubo; + vulkan_texture_data* texture_data; +} vulkan_shader; + +typedef struct vulkan_context { + VkInstance instance; + VkAllocationCallbacks* allocator; + VkSurfaceKHR surface; + vulkan_device device; + u32 framebuffer_width; + u32 framebuffer_height; + vulkan_swapchain swapchain; + vulkan_renderpass main_renderpass; + vulkan_buffer object_vertex_buffer; + vulkan_buffer object_index_buffer; + u64 geometry_vertex_offset; + u64 geometry_index_offset; + + vulkan_command_buffer_darray* gfx_command_buffers; + + VkSemaphore* image_available_semaphores; + VkSemaphore* queue_complete_semaphores; + u32 in_flight_fence_count; + vulkan_fence* in_flight_fences; + vulkan_fence** images_in_flight; + + u32 image_index; + u32 current_frame; + + vulkan_shader object_shader; + + // TODO: swapchain recreation + +#if defined(DEBUG) + VkDebugUtilsMessengerEXT vk_debugger; +#endif +} vulkan_context; + +static vulkan_context context; + +static i32 find_memory_index(vulkan_context* context, u32 type_filter, u32 property_flags) { + VkPhysicalDeviceMemoryProperties memory_properties; + vkGetPhysicalDeviceMemoryProperties(context->device.physical_device, &memory_properties); + + for (u32 i = 0; i < memory_properties.memoryTypeCount; ++i) { + // Check each memory type to see if its bit is set to 1. + if (type_filter & (1 << i) && + (memory_properties.memoryTypes[i].propertyFlags & property_flags) == property_flags) { + return i; + } + } + + WARN("Unable to find suitable memory type!"); + return -1; +} + +/** @brief Internal backend state */ +typedef struct vulkan_state { +} vulkan_state; + +typedef struct vertex_pos { + vec3 pos; + vec3 normal; +} vertex_pos; + +// pipeline stuff +bool vulkan_graphics_pipeline_create(vulkan_context* context, vulkan_renderpass* renderpass, + u32 attribute_count, + VkVertexInputAttributeDescription* attributes, + u32 descriptor_set_layout_count, + VkDescriptorSetLayout* descriptor_set_layouts, u32 stage_count, + VkPipelineShaderStageCreateInfo* stages, VkViewport viewport, + VkRect2D scissor, bool is_wireframe, + vulkan_pipeline* out_pipeline) { + VkPipelineViewportStateCreateInfo viewport_state = { + VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO + }; + viewport_state.viewportCount = 1; + viewport_state.pViewports = &viewport; + viewport_state.scissorCount = 1; + viewport_state.pScissors = &scissor; + + // Rasterizer + VkPipelineRasterizationStateCreateInfo rasterizer_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO + }; + rasterizer_create_info.depthClampEnable = VK_FALSE; + rasterizer_create_info.rasterizerDiscardEnable = VK_FALSE; + rasterizer_create_info.polygonMode = is_wireframe ? VK_POLYGON_MODE_LINE : VK_POLYGON_MODE_FILL; + rasterizer_create_info.lineWidth = 1.0f; + rasterizer_create_info.cullMode = VK_CULL_MODE_BACK_BIT; + rasterizer_create_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE; + rasterizer_create_info.depthBiasEnable = VK_FALSE; + rasterizer_create_info.depthBiasConstantFactor = 0.0; + rasterizer_create_info.depthBiasClamp = 0.0; + rasterizer_create_info.depthBiasSlopeFactor = 0.0; + + // Multisampling + VkPipelineMultisampleStateCreateInfo ms_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO + }; + ms_create_info.sampleShadingEnable = VK_FALSE; + ms_create_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; + ms_create_info.minSampleShading = 1.0; + ms_create_info.pSampleMask = 0; + ms_create_info.alphaToCoverageEnable = VK_FALSE; + ms_create_info.alphaToOneEnable = VK_FALSE; + + // Depth and stencil testing + VkPipelineDepthStencilStateCreateInfo depth_stencil = { + VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO + }; + depth_stencil.depthTestEnable = VK_TRUE; + depth_stencil.depthWriteEnable = VK_TRUE; + depth_stencil.depthCompareOp = VK_COMPARE_OP_LESS; + depth_stencil.depthBoundsTestEnable = VK_FALSE; + depth_stencil.stencilTestEnable = VK_FALSE; + depth_stencil.pNext = 0; + + VkPipelineColorBlendAttachmentState color_blend_attachment_state; + color_blend_attachment_state.blendEnable = VK_TRUE; + color_blend_attachment_state.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; + color_blend_attachment_state.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; + color_blend_attachment_state.colorBlendOp = VK_BLEND_OP_ADD; + color_blend_attachment_state.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; + color_blend_attachment_state.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; + color_blend_attachment_state.alphaBlendOp = VK_BLEND_OP_ADD; + color_blend_attachment_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | + VK_COLOR_COMPONENT_G_BIT | + VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; + + VkPipelineColorBlendStateCreateInfo color_blend = { + VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO + }; + color_blend.logicOpEnable = VK_FALSE; + color_blend.logicOp = VK_LOGIC_OP_COPY; + color_blend.attachmentCount = 1; + color_blend.pAttachments = &color_blend_attachment_state; + + const u32 dynamic_state_count = 3; + VkDynamicState dynamic_states[3] = { + VK_DYNAMIC_STATE_VIEWPORT, + VK_DYNAMIC_STATE_SCISSOR, + VK_DYNAMIC_STATE_LINE_WIDTH, + }; + + VkPipelineDynamicStateCreateInfo dynamic_state = { + VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO + }; + dynamic_state.dynamicStateCount = dynamic_state_count; + dynamic_state.pDynamicStates = dynamic_states; + + // Vertex input + VkVertexInputBindingDescription binding_desc; + binding_desc.binding = 0; + binding_desc.stride = sizeof(vertex); + binding_desc.inputRate = VK_VERTEX_INPUT_RATE_VERTEX; + + VkPipelineVertexInputStateCreateInfo vertex_input_info = { + VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO + }; + vertex_input_info.vertexBindingDescriptionCount = 1; + vertex_input_info.pVertexBindingDescriptions = &binding_desc; + vertex_input_info.vertexAttributeDescriptionCount = attribute_count; + vertex_input_info.pVertexAttributeDescriptions = attributes; + + VkPipelineInputAssemblyStateCreateInfo input_assembly = { + VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO + }; + input_assembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; + input_assembly.primitiveRestartEnable = VK_FALSE; + + VkPipelineLayoutCreateInfo pipeline_layout_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO + }; + + // Pushconstants + VkPushConstantRange push_constant; + push_constant.stageFlags = VK_SHADER_STAGE_VERTEX_BIT; + push_constant.offset = sizeof(mat4) * 0; + push_constant.size = sizeof(mat4) * 2; + + pipeline_layout_create_info.pushConstantRangeCount = 1; + pipeline_layout_create_info.pPushConstantRanges = &push_constant; + + pipeline_layout_create_info.setLayoutCount = descriptor_set_layout_count; + pipeline_layout_create_info.pSetLayouts = descriptor_set_layouts; + + vkCreatePipelineLayout(context->device.logical_device, &pipeline_layout_create_info, + context->allocator, &out_pipeline->layout); + + VkGraphicsPipelineCreateInfo pipeline_create_info = { + VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO + }; + pipeline_create_info.stageCount = stage_count; + pipeline_create_info.pStages = stages; + pipeline_create_info.pVertexInputState = &vertex_input_info; + pipeline_create_info.pInputAssemblyState = &input_assembly; + + pipeline_create_info.pViewportState = &viewport_state; + pipeline_create_info.pRasterizationState = &rasterizer_create_info; + pipeline_create_info.pMultisampleState = &ms_create_info; + pipeline_create_info.pDepthStencilState = &depth_stencil; + pipeline_create_info.pColorBlendState = &color_blend; + pipeline_create_info.pDynamicState = &dynamic_state; + pipeline_create_info.pTessellationState = 0; + + pipeline_create_info.layout = out_pipeline->layout; + + pipeline_create_info.renderPass = renderpass->handle; + pipeline_create_info.subpass = 0; + pipeline_create_info.basePipelineHandle = VK_NULL_HANDLE; + pipeline_create_info.basePipelineIndex = -1; + + VkResult result = + vkCreateGraphicsPipelines(context->device.logical_device, VK_NULL_HANDLE, 1, + &pipeline_create_info, context->allocator, &out_pipeline->handle); + if (result != VK_SUCCESS) { + FATAL("graphics pipeline creation failed. its fked mate"); + ERROR_EXIT("Doomed"); + } + + return true; +} + +void vulkan_pipeline_bind(vulkan_command_buffer* command_buffer, VkPipelineBindPoint bind_point, + vulkan_pipeline* pipeline) { + vkCmdBindPipeline(command_buffer->handle, bind_point, pipeline->handle); +} + +void vulkan_buffer_bind(vulkan_context* context, vulkan_buffer* buffer, u64 offset) { + vkBindBufferMemory(context->device.logical_device, buffer->handle, buffer->memory, offset); +} + +bool vulkan_buffer_create(vulkan_context* context, u64 size, VkBufferUsageFlagBits usage, + u32 memory_property_flags, bool bind_on_create, + vulkan_buffer* out_buffer) { + memset(out_buffer, 0, sizeof(vulkan_buffer)); + out_buffer->total_size = size; + out_buffer->usage = usage; + out_buffer->memory_property_flags = memory_property_flags; + + VkBufferCreateInfo buffer_info = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; + buffer_info.size = size; + buffer_info.usage = usage; + buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + + vkCreateBuffer(context->device.logical_device, &buffer_info, context->allocator, + &out_buffer->handle); + + VkMemoryRequirements requirements; + vkGetBufferMemoryRequirements(context->device.logical_device, out_buffer->handle, &requirements); + out_buffer->memory_index = + find_memory_index(context, requirements.memoryTypeBits, out_buffer->memory_property_flags); + + // Allocate + VkMemoryAllocateInfo allocate_info = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; + allocate_info.allocationSize = requirements.size; + allocate_info.memoryTypeIndex = (u32)out_buffer->memory_index; + + vkAllocateMemory(context->device.logical_device, &allocate_info, context->allocator, + &out_buffer->memory); + + if (bind_on_create) { + vulkan_buffer_bind(context, out_buffer, 0); + } + + DEBUG("Created buffer."); + + return true; +} + +// lock and unlock? + +void* vulkan_buffer_lock_memory(vulkan_context* context, vulkan_buffer* buffer, u64 offset, + u64 size, u32 flags) { + void* data; + vkMapMemory(context->device.logical_device, buffer->memory, offset, size, flags, &data); + return data; +} +void* vulkan_buffer_unlock_memory(vulkan_context* context, vulkan_buffer* buffer) { + vkUnmapMemory(context->device.logical_device, buffer->memory); +} + +void vulkan_buffer_load_data(vulkan_context* context, vulkan_buffer* buffer, u64 offset, u64 size, + u32 flags, const void* data) { + void* data_ptr = 0; + VK_CHECK( + vkMapMemory(context->device.logical_device, buffer->memory, offset, size, flags, &data_ptr)); + memcpy(data_ptr, data, size); + vkUnmapMemory(context->device.logical_device, buffer->memory); +} + +// TODO: destroy + +bool create_shader_module(vulkan_context* context, const char* filename, const char* type_str, + VkShaderStageFlagBits flag, u32 stage_index, + vulkan_shader_stage* shader_stages) { + memset(&shader_stages[stage_index].create_info, 0, sizeof(VkShaderModuleCreateInfo)); + memset(&shader_stages[stage_index].stage_create_info, 0, sizeof(VkPipelineShaderStageCreateInfo)); + + shader_stages[stage_index].create_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; + + // todo: file input + FileData file_contents = load_spv_file(filename); + + shader_stages[stage_index].create_info.codeSize = file_contents.size; + shader_stages[stage_index].create_info.pCode = (u32*)file_contents.data; + + vkCreateShaderModule(context->device.logical_device, &shader_stages[stage_index].create_info, + context->allocator, &shader_stages[stage_index].handle); + + shader_stages[stage_index].stage_create_info.sType = + VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; + shader_stages[stage_index].stage_create_info.stage = flag; + shader_stages[stage_index].stage_create_info.module = shader_stages[stage_index].handle; + shader_stages[stage_index].stage_create_info.pName = "main"; + + free(file_contents.data); + + // TODO: Descriptors + + return true; +} + +bool vulkan_object_shader_create(vulkan_context* context, vulkan_shader* out_shader) { + char stage_type_strs[SHADER_STAGE_COUNT][5] = { "vert", "frag" }; + char stage_filenames[SHADER_STAGE_COUNT][256] = { "build/linux/x86_64/debug/object.vert.spv", + "build/linux/x86_64/debug/object.frag.spv" }; + VkShaderStageFlagBits stage_types[SHADER_STAGE_COUNT] = { VK_SHADER_STAGE_VERTEX_BIT, + VK_SHADER_STAGE_FRAGMENT_BIT }; + for (u8 i = 0; i < SHADER_STAGE_COUNT; i++) { + DEBUG("Loading %s", stage_filenames[i]); + create_shader_module(context, stage_filenames[i], stage_type_strs[i], stage_types[i], i, + out_shader->stages); + } + + // descriptors + VkDescriptorSetLayoutBinding global_ubo_layout_binding; + global_ubo_layout_binding.binding = 0; + global_ubo_layout_binding.descriptorCount = 1; + global_ubo_layout_binding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + global_ubo_layout_binding.pImmutableSamplers = 0; + global_ubo_layout_binding.stageFlags = VK_SHADER_STAGE_VERTEX_BIT; + + VkDescriptorSetLayoutBinding sampler_layout_binding; + sampler_layout_binding.binding = 1; + sampler_layout_binding.descriptorCount = 1; + sampler_layout_binding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + sampler_layout_binding.pImmutableSamplers = 0; + sampler_layout_binding.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT; + + VkDescriptorSetLayoutCreateInfo global_layout_info = { + VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO + }; + + VkDescriptorSetLayoutBinding bindings[2] = { global_ubo_layout_binding, sampler_layout_binding }; + + global_layout_info.bindingCount = 2; + global_layout_info.pBindings = bindings; + + VK_CHECK(vkCreateDescriptorSetLayout(context->device.logical_device, &global_layout_info, + context->allocator, &out_shader->descriptor_set_layout)); + + VkDescriptorPoolSize global_pool_size; + global_pool_size.type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + global_pool_size.descriptorCount = 3; + + VkDescriptorPoolSize sampler_pool_size; + sampler_pool_size.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + sampler_pool_size.descriptorCount = 3; + + VkDescriptorPoolSize pool_sizes[2] = { global_pool_size, sampler_pool_size }; + + VkDescriptorPoolCreateInfo pool_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO }; + pool_info.poolSizeCount = 2; + pool_info.pPoolSizes = pool_sizes; + pool_info.maxSets = 3; + + VK_CHECK(vkCreateDescriptorPool(context->device.logical_device, &pool_info, context->allocator, + &out_shader->descriptor_pool)); + + // Pipeline creation + VkViewport viewport; + viewport.x = 0; + viewport.y = 0; + viewport.width = (f32)context->framebuffer_width; + viewport.height = (f32)context->framebuffer_height; + viewport.minDepth = 0.0; + viewport.maxDepth = 1.0; + + VkRect2D scissor; + scissor.offset.x = scissor.offset.y = 0; + scissor.extent.width = context->framebuffer_width; + scissor.extent.height = context->framebuffer_height; + + // Attributes + u32 offset = 0; + const i32 attribute_count = 3; + VkVertexInputAttributeDescription attribute_descs[3]; + // Position + VkFormat formats[3] = { VK_FORMAT_R32G32B32_SFLOAT, VK_FORMAT_R32G32B32_SFLOAT, + VK_FORMAT_R32G32_SFLOAT }; + + u64 sizes[3] = { sizeof(vec3), sizeof(vec3), sizeof(vec2) }; + + for (u32 i = 0; i < attribute_count; i++) { + attribute_descs[i].binding = 0; + attribute_descs[i].location = i; + attribute_descs[i].format = formats[i]; + attribute_descs[i].offset = offset; + offset += sizes[i]; + } + + // Descriptor set layouts + VkDescriptorSetLayout layouts[1] = { out_shader->descriptor_set_layout }; + + // Stages + VkPipelineShaderStageCreateInfo stage_create_infos[SHADER_STAGE_COUNT]; + memset(stage_create_infos, 0, sizeof(stage_create_infos)); + for (u32 i = 0; i < SHADER_STAGE_COUNT; i++) { + stage_create_infos[i].sType = out_shader->stages[i].stage_create_info.sType; + stage_create_infos[i] = out_shader->stages[i].stage_create_info; + } + + vulkan_graphics_pipeline_create( + context, &context->main_renderpass, attribute_count, attribute_descs, 1, layouts, + SHADER_STAGE_COUNT, stage_create_infos, viewport, scissor, false, &out_shader->pipeline); + INFO("Graphics pipeline created!"); + + // Uniform buffer + if (!vulkan_buffer_create(context, sizeof(global_object_uniform), + VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, + VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | + VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | + VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, + true, &out_shader->global_uniforms_buffer)) { + ERROR("Couldnt create uniforms buffer"); + return false; + } + + VkDescriptorSetLayout global_layouts[3] = { + out_shader->descriptor_set_layout, + out_shader->descriptor_set_layout, + out_shader->descriptor_set_layout, + }; + + VkDescriptorSetAllocateInfo alloc_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO }; + alloc_info.descriptorPool = out_shader->descriptor_pool; + alloc_info.descriptorSetCount = 3; + alloc_info.pSetLayouts = global_layouts; + VK_CHECK(vkAllocateDescriptorSets(context->device.logical_device, &alloc_info, + out_shader->descriptor_sets)); + + return true; +} +void vulkan_object_shader_destroy(vulkan_context* context, vulkan_shader* shader) {} +void vulkan_object_shader_use(vulkan_context* context, vulkan_shader* shader) { + u32 image_index = context->image_index; + vulkan_pipeline_bind(&context->gfx_command_buffers->data[image_index], + VK_PIPELINE_BIND_POINT_GRAPHICS, &shader->pipeline); +} +void vulkan_object_shader_update_global_state(vulkan_context* context, vulkan_shader* shader) { + u32 image_index = context->image_index; + VkCommandBuffer cmd_buffer = context->gfx_command_buffers->data[image_index].handle; + VkDescriptorSet global_descriptors = shader->descriptor_sets[image_index]; + + u32 range = sizeof(global_object_uniform); + u64 offset = 0; + + // copy data to buffer + vulkan_buffer_load_data(context, &shader->global_uniforms_buffer, offset, range, 0, + &shader->global_ubo); + + VkDescriptorBufferInfo buffer_info; + buffer_info.buffer = shader->global_uniforms_buffer.handle; + buffer_info.offset = offset; + buffer_info.range = range; + + VkDescriptorImageInfo image_info; + image_info.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; + image_info.imageView = shader->texture_data->image.view; + image_info.sampler = shader->texture_data->sampler; + + VkWriteDescriptorSet uniform_write = { VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET }; + uniform_write.dstSet = shader->descriptor_sets[image_index]; + uniform_write.dstBinding = 0; + uniform_write.dstArrayElement = 0; + uniform_write.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + uniform_write.descriptorCount = 1; + uniform_write.pBufferInfo = &buffer_info; + + VkWriteDescriptorSet texture_write = { VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET }; + texture_write.dstSet = shader->descriptor_sets[image_index]; + texture_write.dstBinding = 1; + texture_write.dstArrayElement = 0; + texture_write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + texture_write.descriptorCount = 1; + texture_write.pImageInfo = &image_info; + + VkWriteDescriptorSet writes[2] = { uniform_write, texture_write }; + + vkUpdateDescriptorSets(context->device.logical_device, 2, writes, 0, 0); + + vkCmdBindDescriptorSets(cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, shader->pipeline.layout, 0, + 1, &global_descriptors, 0, 0); +} + +void vulkan_object_shader_update_object(vulkan_context* context, vulkan_shader* shader, + mat4 model) { + u32 image_index = context->image_index; + VkCommandBuffer cmd_buffer = context->gfx_command_buffers->data[image_index].handle; + // vulkan_command_buffer* cmd_buffer = &context->gfx_command_buffers->data[context.image_index]; + + vkCmdPushConstants(cmd_buffer, shader->pipeline.layout, VK_SHADER_STAGE_VERTEX_BIT, 0, + sizeof(mat4), &model); + + // vulkan_object_shader_use(context, &context->object_shader); + VkDeviceSize offsets[1] = { 0 }; + vkCmdBindVertexBuffers(cmd_buffer, 0, 1, &context->object_vertex_buffer.handle, + (VkDeviceSize*)offsets); + + vkCmdBindIndexBuffer(cmd_buffer, context->object_index_buffer.handle, 0, VK_INDEX_TYPE_UINT32); + + vkCmdDrawIndexed(cmd_buffer, 36, 1, 0, 0, 0); + // vkCmdDraw(cmd_buffer, 36, 1, 0, 0); +} + +bool select_physical_device(vulkan_context* ctx) { + u32 physical_device_count = 0; + VK_CHECK(vkEnumeratePhysicalDevices(ctx->instance, &physical_device_count, 0)); + if (physical_device_count == 0) { + FATAL("No devices that support vulkan were found"); + return false; + } + TRACE("Number of devices found %d", physical_device_count); + + VkPhysicalDevice physical_devices[physical_device_count]; + VK_CHECK(vkEnumeratePhysicalDevices(ctx->instance, &physical_device_count, physical_devices)); + + for (u32 i = 0; i < physical_device_count; i++) { + VkPhysicalDeviceProperties properties; + vkGetPhysicalDeviceProperties(physical_devices[i], &properties); + + VkPhysicalDeviceFeatures features; + vkGetPhysicalDeviceFeatures(physical_devices[i], &features); + + VkPhysicalDeviceMemoryProperties memory; + vkGetPhysicalDeviceMemoryProperties(physical_devices[i], &memory); + + vulkan_physical_device_requirements requirements = {}; + requirements.graphics = true; + requirements.present = true; + requirements.compute = true; + requirements.transfer = true; + + requirements.sampler_anistropy = true; + requirements.discrete_gpu = true; + requirements.device_ext_names[0] = str8lit(VK_KHR_SWAPCHAIN_EXTENSION_NAME); + requirements.device_ext_name_count = 1; + + vulkan_physical_device_queue_family_info queue_info = {}; + + bool result = physical_device_meets_requirements(physical_devices[i], ctx->surface, &properties, + &features, &requirements, &queue_info, + &ctx->device.swapchain_support); + + if (result) { + INFO("GPU Driver version: %d.%d.%d", VK_VERSION_MAJOR(properties.driverVersion), + VK_VERSION_MINOR(properties.driverVersion), VK_VERSION_PATCH(properties.driverVersion)); + + INFO("Vulkan API version: %d.%d.%d", VK_VERSION_MAJOR(properties.apiVersion), + VK_VERSION_MINOR(properties.apiVersion), VK_VERSION_PATCH(properties.apiVersion)); + + // TODO: print gpu memory information - + // https://youtu.be/6Kj3O2Ov1RU?si=pXfP5NvXXcXjJsrG&t=2439 + + ctx->device.physical_device = physical_devices[i]; + ctx->device.graphics_queue_index = queue_info.graphics_family_index; + ctx->device.present_queue_index = queue_info.present_family_index; + ctx->device.compute_queue_index = queue_info.compute_family_index; + ctx->device.transfer_queue_index = queue_info.transfer_family_index; + ctx->device.properties = properties; + ctx->device.features = features; + ctx->device.memory = memory; + break; + } + } + + if (!ctx->device.physical_device) { + ERROR("No suitable physical devices were found :("); + return false; + } + + INFO("Physical device selected: %s\n", ctx->device.properties.deviceName); + return true; +} + +bool vulkan_device_create(vulkan_context* context) { + // Physical device - NOTE: mutates the context directly + if (!select_physical_device(context)) { + return false; + } + +// Logical device - NOTE: mutates the context directly + +// queues +#define VULKAN_QUEUES_COUNT 2 + const char* queue_names[VULKAN_QUEUES_COUNT] = { + "GRAPHICS", + "TRANSFER", + }; + i32 indices[VULKAN_QUEUES_COUNT] = { + context->device.graphics_queue_index, + context->device.transfer_queue_index, + }; + f32 prio_one = 1.0; + VkDeviceQueueCreateInfo queue_create_info[2]; // HACK: make 2 queues, graphics and transfer + // graphics + queue_create_info[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + queue_create_info[0].queueFamilyIndex = 0; + queue_create_info[0].queueCount = 1; + queue_create_info[0].flags = 0; + queue_create_info[0].pNext = 0; + queue_create_info[0].pQueuePriorities = &prio_one; + // transfer + queue_create_info[1].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + queue_create_info[1].queueFamilyIndex = 1; + queue_create_info[1].queueCount = 1; + queue_create_info[1].flags = 0; + queue_create_info[1].pNext = 0; + queue_create_info[1].pQueuePriorities = &prio_one; + + // for (int i = 0; i < 2; i++) { + // TRACE("Configure %s queue", queue_names[i]); + // queue_create_info[i].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + // queue_create_info[i].queueFamilyIndex = indices[i]; + // queue_create_info[i].queueCount = 1; // make just one of them + // queue_create_info[i].flags = 0; + // queue_create_info[i].pNext = 0; + // f32 priority = 1.0; + // queue_create_info[i].pQueuePriorities = &priority; + // } + + // features + VkPhysicalDeviceFeatures device_features = {}; + device_features.samplerAnisotropy = VK_TRUE; // request anistrophy + + // device itself + VkDeviceCreateInfo device_create_info = { VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO }; + device_create_info.queueCreateInfoCount = VULKAN_QUEUES_COUNT; + device_create_info.pQueueCreateInfos = queue_create_info; + device_create_info.pEnabledFeatures = &device_features; + device_create_info.enabledExtensionCount = 1; + const char* extension_names = VK_KHR_SWAPCHAIN_EXTENSION_NAME; + device_create_info.ppEnabledExtensionNames = &extension_names; + + // deprecated + device_create_info.enabledLayerCount = 0; + device_create_info.ppEnabledLayerNames = 0; + + VkResult result = vkCreateDevice(context->device.physical_device, &device_create_info, + context->allocator, &context->device.logical_device); + if (result != VK_SUCCESS) { + printf("error creating logical device with status %u\n", result); + ERROR_EXIT("Bye bye"); + } + INFO("Logical device created"); + + // get queues + vkGetDeviceQueue(context->device.logical_device, context->device.graphics_queue_index, 0, + &context->device.graphics_queue); + // vkGetDeviceQueue(context->device.logical_device, context->device.present_queue_index, 0, + // &context->device.present_queue); + // vkGetDeviceQueue(context->device.logical_device, context->device.compute_queue_index, 0, + // &context->device.compute_queue); + vkGetDeviceQueue(context->device.logical_device, context->device.transfer_queue_index, 0, + &context->device.transfer_queue); + + // create command pool for graphics queue + VkCommandPoolCreateInfo pool_create_info = { VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO }; + pool_create_info.queueFamilyIndex = context->device.graphics_queue_index; + pool_create_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT; + vkCreateCommandPool(context->device.logical_device, &pool_create_info, context->allocator, + &context->device.gfx_command_pool); + INFO("Created Command Pool") + + return true; +} +void vulkan_device_destroy(vulkan_context* context) { + context->device.physical_device = 0; // release + // TODO: reset other memory +} + +bool vulkan_device_detect_depth_format(vulkan_device* device) { + const size_t n_candidates = 3; + VkFormat candidates[3] = { VK_FORMAT_D32_SFLOAT, VK_FORMAT_D32_SFLOAT_S8_UINT, + VK_FORMAT_D24_UNORM_S8_UINT }; + u32 flags = VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT; + for (u64 i = 0; i < n_candidates; i++) { + VkFormatProperties properties; + vkGetPhysicalDeviceFormatProperties(device->physical_device, candidates[i], &properties); + + if ((properties.linearTilingFeatures & flags) == flags) { + device->depth_format = candidates[i]; + return true; + } + if ((properties.optimalTilingFeatures & flags) == flags) { + device->depth_format = candidates[i]; + return true; + } + } + return false; +} + +void vulkan_image_view_create(vulkan_context* context, VkFormat format, vulkan_image* image, + VkImageAspectFlags aspect_flags) { + VkImageViewCreateInfo view_create_info = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO }; + view_create_info.image = image->handle; + view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D; + view_create_info.format = format; + view_create_info.subresourceRange.aspectMask = aspect_flags; + + view_create_info.subresourceRange.baseMipLevel = 0; + view_create_info.subresourceRange.levelCount = 1; + view_create_info.subresourceRange.baseArrayLayer = 0; + view_create_info.subresourceRange.layerCount = 1; + + vkCreateImageView(context->device.logical_device, &view_create_info, context->allocator, + &image->view); +} + +void vulkan_image_transition_layout(vulkan_context* context, vulkan_command_buffer* command_buffer, + vulkan_image* image, VkFormat format, VkImageLayout old_layout, + VkImageLayout new_layout) { + VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; + void vulkan_image_transition_layout( + vulkan_context * context, vulkan_command_buffer * command_buffer, vulkan_image * image, + VkFormat format, VkImageLayout old_layout, VkImageLayout new_layout) { + VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; + barrier.oldLayout = old_layout; + barrier.newLayout = new_layout; + barrier.srcQueueFamilyIndex = context->device.graphics_queue_index; + barrier.dstQueueFamilyIndex = context->device.graphics_queue_index; + barrier.image = image->handle; + barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + barrier.subresourceRange.baseMipLevel = 0; + barrier.subresourceRange.levelCount = 1; + barrier.subresourceRange.baseArrayLayer = 0; + barrier.subresourceRange.layerCount = 1; + barrier.srcAccessMask = 0; + barrier.dstAccessMask = 0; + + VkPipelineStageFlags source_stage; + VkPipelineStageFlags dest_stage; + + if (old_layout == VK_IMAGE_LAYOUT_UNDEFINED && + new_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) { + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; + + source_stage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + dest_stage = VK_PIPELINE_STAGE_TRANSFER_BIT; + + } else if (old_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && + new_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { + barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT; + source_stage = VK_PIPELINE_STAGE_TRANSFER_BIT; + dest_stage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT; + } else { + FATAL("Unsupported image layout transition"); + return; + } + + vkCmdPipelineBarrier(command_buffer->handle, source_stage, dest_stage, 0, 0, 0, 0, 0, 1, + &barrier); + } + + void vulkan_image_copy_from_buffer(vulkan_image * image, VkBuffer buffer, + vulkan_command_buffer * command_buffer) { + VkBufferImageCopy region; + region.bufferOffset = 0; + region.bufferRowLength = 0; + region.bufferImageHeight = 0; + region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + region.imageSubresource.mipLevel = 0; + region.imageSubresource.baseArrayLayer = 0; + region.imageSubresource.layerCount = 1; + printf("Image details width: %d height %d\n", image->width, image->height); + region.imageOffset.x = 0; + region.imageOffset.y = 0; + region.imageOffset.z = 0; + region.imageExtent.width = image->width; + region.imageExtent.height = image->height; + region.imageExtent.depth = 1; + + vkCmdCopyBufferToImage(command_buffer->handle, buffer, image->handle, + VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion); + } + + void vulkan_image_create(vulkan_context * context, VkImageType image_type, u32 width, u32 height, + VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, + VkMemoryPropertyFlags memory_flags, bool create_view, + VkImageAspectFlags aspect_flags, vulkan_image* out_image) { + // copy params + out_image->width = width; + out_image->height = height; + + // create info + VkImageCreateInfo image_create_info = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; + image_create_info.imageType = image_type; + image_create_info.extent.width = width; + image_create_info.extent.height = height; + image_create_info.extent.depth = 1; + image_create_info.mipLevels = 1; + image_create_info.arrayLayers = 1; + image_create_info.format = format; + image_create_info.tiling = tiling; + image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + image_create_info.usage = usage; + image_create_info.samples = VK_SAMPLE_COUNT_1_BIT; + image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + + VK_CHECK(vkCreateImage(context->device.logical_device, &image_create_info, context->allocator, + &out_image->handle)); + + VkMemoryRequirements memory_reqs; + vkGetImageMemoryRequirements(context->device.logical_device, out_image->handle, &memory_reqs); + + i32 memory_type = -1; + VkPhysicalDeviceMemoryProperties memory_properties; + vkGetPhysicalDeviceMemoryProperties(context->device.physical_device, &memory_properties); + + for (u32 i = 0; i < memory_properties.memoryTypeCount; i++) { + // typefilter = memoryTypeBits , prop filter = memory_flags + if (memory_reqs.memoryTypeBits & (1 << i) && + (memory_properties.memoryTypes[i].propertyFlags & memory_flags)) { + memory_type = i; + break; + } + } + + if (memory_type < 0) { + ERROR_EXIT("couldnt find a suitable memory type for the image"); + } + + // allocate memory + VkMemoryAllocateInfo memory_allocate_info = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; + memory_allocate_info.allocationSize = memory_reqs.size; + memory_allocate_info.memoryTypeIndex = memory_type; + vkAllocateMemory(context->device.logical_device, &memory_allocate_info, context->allocator, + &out_image->memory); + + // bind memory + // TODO: maybe bind context->device.logical_device to device at the top of the functions? + vkBindImageMemory(context->device.logical_device, out_image->handle, out_image->memory, 0); + + if (create_view) { + out_image->view = 0; + vulkan_image_view_create(context, format, out_image, aspect_flags); + } + } + + // TODO: vulkan_image_destroy + + void vulkan_framebuffer_create(vulkan_context * context, vulkan_renderpass * renderpass, + u32 width, u32 height, u32 attachment_count, + VkImageView * attachments, vulkan_framebuffer * out_framebuffer) { + out_framebuffer->attachments = malloc(sizeof(VkImageView) * attachment_count); + for (u32 i = 0; i < attachment_count; i++) { + out_framebuffer->attachments[i] = attachments[i]; + } + out_framebuffer->attachment_count = attachment_count; + out_framebuffer->renderpass = renderpass; + + VkFramebufferCreateInfo framebuffer_create_info = { + VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO + }; // TODO + + framebuffer_create_info.renderPass = renderpass->handle; + framebuffer_create_info.attachmentCount = attachment_count; + framebuffer_create_info.pAttachments = out_framebuffer->attachments; + framebuffer_create_info.width = width; + framebuffer_create_info.height = height; + framebuffer_create_info.layers = 1; + + vkCreateFramebuffer(context->device.logical_device, &framebuffer_create_info, + context->allocator, &out_framebuffer->handle); + } + + // TODO: vulkan_framebuffer_destroy + + void vulkan_command_buffer_allocate(vulkan_context * context, VkCommandPool pool, bool is_primary, + vulkan_command_buffer* out_command_buffer) { + VkCommandBufferAllocateInfo allocate_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO }; + allocate_info.commandPool = pool; + allocate_info.level = + is_primary ? VK_COMMAND_BUFFER_LEVEL_PRIMARY : VK_COMMAND_BUFFER_LEVEL_SECONDARY; + allocate_info.commandBufferCount = 1; + allocate_info.pNext = 0; + + out_command_buffer->state = COMMAND_BUFFER_STATE_NOT_ALLOCATED; + vkAllocateCommandBuffers(context->device.logical_device, &allocate_info, + &out_command_buffer->handle); + out_command_buffer->state = COMMAND_BUFFER_STATE_READY; + } + + void vulkan_command_buffer_free(vulkan_context * context, VkCommandPool pool, + vulkan_command_buffer * out_command_buffer) { + // TODO: implement freeing + } + + void vulkan_command_buffer_begin(vulkan_command_buffer * command_buffer, bool is_single_use, + bool is_renderpass_continue, bool is_simultaneous_use) { + VkCommandBufferBeginInfo begin_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO }; + begin_info.flags = 0; + if (is_single_use) { + begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; + } + // TODO: RENDER_PASS_CONTINUE_BIT & SIMULTANEOUS_USE_BIT + + begin_info.pNext = 0; + begin_info.pInheritanceInfo = 0; + vkBeginCommandBuffer(command_buffer->handle, &begin_info); + + command_buffer->state = COMMAND_BUFFER_STATE_RECORDING; + } + + void vulkan_command_buffer_end(vulkan_command_buffer * command_buffer) { + VK_CHECK(vkEndCommandBuffer(command_buffer->handle)); + command_buffer->state = COMMAND_BUFFER_STATE_RECORDING_ENDED; + } + void vulkan_command_buffer_update_submitted(vulkan_command_buffer * command_buffer) { + command_buffer->state = COMMAND_BUFFER_STATE_SUBMITTED; + } + void vulkan_command_buffer_reset(vulkan_command_buffer * command_buffer) { + command_buffer->state = COMMAND_BUFFER_STATE_READY; + } + + void vulkan_command_buffer_allocate_and_begin_oneshot( + vulkan_context * context, VkCommandPool pool, vulkan_command_buffer * out_command_buffer) { + vulkan_command_buffer_allocate(context, pool, true, out_command_buffer); + vulkan_command_buffer_begin(out_command_buffer, true, false, false); + } + + void vulkan_command_buffer_end_oneshot(vulkan_context * context, VkCommandPool pool, + vulkan_command_buffer * command_buffer, VkQueue queue) { + vulkan_command_buffer_end(command_buffer); + + // submit to queue + VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO }; + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &command_buffer->handle; + VK_CHECK(vkQueueSubmit(queue, 1, &submit_info, 0)); + // wait for it to finish + VK_CHECK(vkQueueWaitIdle(queue)); + + vulkan_command_buffer_free(context, pool, command_buffer); + } + + void vulkan_buffer_copy_to(vulkan_context * context, VkCommandPool pool, VkFence fence, + VkQueue queue, VkBuffer source, u64 source_offset, VkBuffer dest, + u64 dest_offset, u64 size) { + vkQueueWaitIdle(queue); + + vulkan_command_buffer temp_cmd_buf; + vulkan_command_buffer_allocate_and_begin_oneshot(context, pool, &temp_cmd_buf); + + VkBufferCopy copy_region; + copy_region.srcOffset = source_offset; + copy_region.dstOffset = dest_offset; + copy_region.size = size; + + vkCmdCopyBuffer(temp_cmd_buf.handle, source, dest, 1, ©_region); + + vulkan_command_buffer_end_oneshot(context, pool, &temp_cmd_buf, queue); + } + + void vulkan_swapchain_create(vulkan_context * context, u32 width, u32 height, + vulkan_swapchain * out_swapchain) { + VkExtent2D swapchain_extent = { width, height }; + out_swapchain->max_frames_in_flight = 2; // support triple buffering + + // find a format + bool found; + for (u32 i = 0; i < context->device.swapchain_support.format_count; i++) { + VkSurfaceFormatKHR format = context->device.swapchain_support.formats[i]; + if (format.format == VK_FORMAT_B8G8R8A8_UNORM && + format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) { + out_swapchain->image_format = format; + found = true; + break; + } + } + if (!found) { + out_swapchain->image_format = context->device.swapchain_support.formats[0]; + } + + VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR; // guaranteed to be implemented + // TODO: look for mailbox - https://youtu.be/jWKVb_QdSNM?si=bHcd3sEf-M0x3QwH&t=1687 + + // TODO: requery swapchain support + + u32 image_count = context->device.swapchain_support.capabilities.minImageCount; + + VkSwapchainCreateInfoKHR swapchain_create_info = { + VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR + }; + swapchain_create_info.surface = context->surface; + swapchain_create_info.minImageCount = image_count; + swapchain_create_info.imageFormat = out_swapchain->image_format.format; + swapchain_create_info.imageColorSpace = out_swapchain->image_format.colorSpace; + DEBUG("Image extent %d %d\n", swapchain_extent.width, swapchain_extent.height); + swapchain_create_info.imageExtent = swapchain_extent; + swapchain_create_info.imageArrayLayers = 1; + swapchain_create_info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT; + swapchain_create_info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; + swapchain_create_info.queueFamilyIndexCount = 0; + swapchain_create_info.pQueueFamilyIndices = 0; + + swapchain_create_info.preTransform = + context->device.swapchain_support.capabilities.currentTransform; + swapchain_create_info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; + swapchain_create_info.presentMode = present_mode; + swapchain_create_info.clipped = VK_TRUE; + swapchain_create_info.oldSwapchain = 0; + + TRACE("Create swapchain"); + VK_CHECK(vkCreateSwapchainKHR(context->device.logical_device, &swapchain_create_info, + context->allocator, &out_swapchain->handle)); + + context->current_frame = 0; + + // images + out_swapchain->image_count = 0; + vkGetSwapchainImagesKHR(context->device.logical_device, out_swapchain->handle, + &out_swapchain->image_count, 0); + + if (!out_swapchain->images) { + out_swapchain->images = (VkImage*)malloc(sizeof(VkImage) * out_swapchain->image_count); + } + if (!out_swapchain->views) { + out_swapchain->views = (VkImageView*)malloc(sizeof(VkImage) * out_swapchain->image_count); + } + VK_CHECK(vkGetSwapchainImagesKHR(context->device.logical_device, out_swapchain->handle, + &out_swapchain->image_count, out_swapchain->images)); + + // views + for (int i = 0; i < out_swapchain->image_count; i++) { + VkImageViewCreateInfo view_info = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO }; + view_info.image = out_swapchain->images[i]; + view_info.viewType = VK_IMAGE_VIEW_TYPE_2D; + view_info.format = out_swapchain->image_format.format; + view_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + view_info.subresourceRange.baseMipLevel = 0; + view_info.subresourceRange.levelCount = 1; + view_info.subresourceRange.baseArrayLayer = 0; + view_info.subresourceRange.layerCount = 1; + + VK_CHECK(vkCreateImageView(context->device.logical_device, &view_info, context->allocator, + &out_swapchain->views[i])); + } + + // depth attachment + if (!vulkan_device_detect_depth_format(&context->device)) { + ERROR_EXIT("Failed to find a supported depth format"); + } + vulkan_image_create(context, VK_IMAGE_TYPE_2D, swapchain_extent.width, swapchain_extent.height, + context->device.depth_format, VK_IMAGE_TILING_OPTIMAL, + VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, + VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, true, VK_IMAGE_ASPECT_DEPTH_BIT, + &out_swapchain->depth_attachment); + INFO("Depth attachment created"); + + INFO("Swapchain created successfully"); + } + + // TODO: swapchain destroy + void vulkan_swapchain_recreate(vulkan_context * context, u32 width, u32 height, + vulkan_swapchain * swapchain) { + // TODO + } + bool vulkan_swapchain_acquire_next_image_index( + vulkan_context * context, vulkan_swapchain * swapchain, u64 timeout_ns, + VkSemaphore image_available_semaphore, VkFence fence, u32 * out_image_index) { + VkResult result = + vkAcquireNextImageKHR(context->device.logical_device, swapchain->handle, timeout_ns, + image_available_semaphore, fence, out_image_index); + + if (result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR) { + FATAL("Failed to acquire swapchain image"); + return false; + } + + return true; + } + + void vulkan_swapchain_present(vulkan_context * context, vulkan_swapchain * swapchain, + VkQueue graphics_queue, VkQueue present_queue, + VkSemaphore render_complete_semaphore, u32 present_image_index) { + // return image to swapchain for presentation + VkPresentInfoKHR present_info = { VK_STRUCTURE_TYPE_PRESENT_INFO_KHR }; + present_info.waitSemaphoreCount = 1; + present_info.pWaitSemaphores = &render_complete_semaphore; + present_info.swapchainCount = 1; + present_info.pSwapchains = &swapchain->handle; + present_info.pImageIndices = &present_image_index; + present_info.pResults = 0; + + VkResult result = vkQueuePresentKHR(present_queue, &present_info); + if (result != VK_SUCCESS) { + if (result == VK_SUBOPTIMAL_KHR) { + // WARN("Swapchain suboptimal - maybe resize needed?"); + } else { + FATAL("Failed to present swapchain iamge"); + } + } + + // advance the current frame + context->current_frame = (context->current_frame + 1) % swapchain->max_frames_in_flight; + } + + void vulkan_renderpass_create(vulkan_context * context, vulkan_renderpass * out_renderpass, + vec4 render_area, vec4 clear_colour, f32 depth, u32 stencil) { + out_renderpass->render_area = render_area; + out_renderpass->clear_colour = clear_colour; + out_renderpass->depth = depth; + out_renderpass->stencil = stencil; + + // main subpass + VkSubpassDescription subpass = {}; + subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS; + + // attachments + u32 attachment_desc_count = 2; + VkAttachmentDescription attachment_descriptions[2]; + + // Colour attachment + VkAttachmentDescription color_attachment; + color_attachment.format = context->swapchain.image_format.format; + color_attachment.samples = VK_SAMPLE_COUNT_1_BIT; + color_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; + color_attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE; + color_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE; + color_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + color_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + color_attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR; + color_attachment.flags = 0; + + attachment_descriptions[0] = color_attachment; + + VkAttachmentReference color_attachment_reference; + color_attachment_reference.attachment = 0; + color_attachment_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; + + subpass.colorAttachmentCount = 1; + subpass.pColorAttachments = &color_attachment_reference; + + // Depth attachment + VkAttachmentDescription depth_attachment; + depth_attachment.format = context->device.depth_format; + depth_attachment.samples = VK_SAMPLE_COUNT_1_BIT; + depth_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; + depth_attachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + depth_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE; + depth_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + depth_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + depth_attachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL; + depth_attachment.flags = 0; + + attachment_descriptions[1] = depth_attachment; + + VkAttachmentReference depth_attachment_reference; + depth_attachment_reference.attachment = 1; + depth_attachment_reference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL; + + subpass.pDepthStencilAttachment = &depth_attachment_reference; + + // TODO: other attachment styles + + subpass.inputAttachmentCount = 0; + subpass.pInputAttachments = 0; + subpass.pResolveAttachments = 0; + subpass.preserveAttachmentCount = 0; + subpass.preserveAttachmentCount = 0; + + // renderpass dependencies + VkSubpassDependency dependency; + dependency.srcSubpass = VK_SUBPASS_EXTERNAL; + dependency.dstSubpass = 0; + dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + dependency.srcAccessMask = 0; + dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + dependency.dstAccessMask = + VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; + dependency.dependencyFlags = 0; + + VkRenderPassCreateInfo render_pass_create_info = { VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO }; + render_pass_create_info.attachmentCount = attachment_desc_count; + render_pass_create_info.pAttachments = attachment_descriptions; + render_pass_create_info.subpassCount = 1; + render_pass_create_info.pSubpasses = &subpass; + render_pass_create_info.dependencyCount = 1; + render_pass_create_info.pDependencies = &dependency; + render_pass_create_info.pNext = 0; + render_pass_create_info.flags = 0; + + VK_CHECK(vkCreateRenderPass(context->device.logical_device, &render_pass_create_info, + context->allocator, &out_renderpass->handle)); + } + + // TODO: renderpass destroy + + void vulkan_renderpass_begin(vulkan_command_buffer * command_buffer, + vulkan_renderpass * renderpass, VkFramebuffer framebuffer) { + VkRenderPassBeginInfo begin_info = { VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO }; + begin_info.renderPass = renderpass->handle; + begin_info.framebuffer = framebuffer; + begin_info.renderArea.offset.x = renderpass->render_area.x; + begin_info.renderArea.offset.y = renderpass->render_area.y; + begin_info.renderArea.extent.width = renderpass->render_area.z; + begin_info.renderArea.extent.height = renderpass->render_area.w; + + VkClearValue clear_values[2]; + memset(&clear_values, 0, sizeof(VkClearValue) * 2); + clear_values[0].color.float32[0] = renderpass->clear_colour.x; + clear_values[0].color.float32[1] = renderpass->clear_colour.y; + clear_values[0].color.float32[2] = renderpass->clear_colour.z; + clear_values[0].color.float32[3] = renderpass->clear_colour.w; + clear_values[1].depthStencil.depth = renderpass->depth; + clear_values[1].depthStencil.stencil = renderpass->stencil; + + begin_info.clearValueCount = 2; + begin_info.pClearValues = clear_values; + + vkCmdBeginRenderPass(command_buffer->handle, &begin_info, VK_SUBPASS_CONTENTS_INLINE); + command_buffer->state = COMMAND_BUFFER_STATE_IN_RENDER_PASS; + } + + void vulkan_renderpass_end(vulkan_command_buffer * command_buffer, + vulkan_renderpass * renderpass) { + vkCmdEndRenderPass(command_buffer->handle); + command_buffer->state = COMMAND_BUFFER_STATE_RECORDING; + } + + bool create_buffers(vulkan_context * context) { + VkMemoryPropertyFlagBits mem_prop_flags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT; + + const u64 vertex_buffer_size = sizeof(vertex_pos) * 1024 * 1024; + if (!vulkan_buffer_create(context, vertex_buffer_size, + VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT | + VK_BUFFER_USAGE_TRANSFER_DST_BIT, + mem_prop_flags, true, &context->object_vertex_buffer)) { + ERROR("couldnt create vertex buffer"); + return false; + } + + context->geometry_vertex_offset = 0; + + const u64 index1_buffer_size = sizeof(u32) * 1024 * 1024; + if (!vulkan_buffer_create(context, index1_buffer_size, + VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_SRC_BIT | + VK_BUFFER_USAGE_TRANSFER_DST_BIT, + mem_prop_flags, true, &context->object_index_buffer)) { + ERROR("couldnt create vertex buffer"); + return false; + } + context->geometry_index_offset = 0; + + return true; + } + + void create_command_buffers(renderer * ren) { + if (!context.gfx_command_buffers) { + context.gfx_command_buffers = vulkan_command_buffer_darray_new(context.swapchain.image_count); + } + + for (u32 i = 0; i < context.swapchain.image_count; i++) { + vulkan_command_buffer_allocate(&context, context.device.gfx_command_pool, true, + &context.gfx_command_buffers->data[i]); + } + } + + void upload_data_range(vulkan_context * context, VkCommandPool pool, VkFence fence, VkQueue queue, + vulkan_buffer * buffer, u64 offset, u64 size, void* data) { + VkBufferUsageFlags flags = + VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; + vulkan_buffer staging; + vulkan_buffer_create(context, size, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, flags, true, &staging); + // load data into staging buffer + printf("Size: %ld\n", size); + vulkan_buffer_load_data(context, &staging, 0, size, 0, data); + + // copy + vulkan_buffer_copy_to(context, pool, fence, queue, staging.handle, 0, buffer->handle, offset, + size); + + vkDestroyBuffer(context->device.logical_device, staging.handle, context->allocator); + } + + void regenerate_framebuffers(renderer * ren, vulkan_swapchain * swapchain, + vulkan_renderpass * renderpass) { + for (u32 i = 0; i < swapchain->image_count; i++) { + u32 attachment_count = 2; // one for depth, one for colour + + VkImageView attachments[2] = { swapchain->views[i], swapchain->depth_attachment.view }; + + vulkan_framebuffer_create(&context, renderpass, context.framebuffer_width, + context.framebuffer_height, 2, attachments, + &swapchain->framebuffers->data[i]); + } + } + + void vulkan_fence_create(vulkan_context * context, bool create_signaled, + vulkan_fence* out_fence) { + out_fence->is_signaled = create_signaled; + VkFenceCreateInfo fence_create_info = { VK_STRUCTURE_TYPE_FENCE_CREATE_INFO }; + if (out_fence->is_signaled) { + fence_create_info.flags = VK_FENCE_CREATE_SIGNALED_BIT; + } + + vkCreateFence(context->device.logical_device, &fence_create_info, context->allocator, + &out_fence->handle); + } + + // TODO: vulkan_fence_destroy + + bool vulkan_fence_wait(vulkan_context * context, vulkan_fence * fence, u64 timeout_ns) { + if (!fence->is_signaled) { + VkResult result = + vkWaitForFences(context->device.logical_device, 1, &fence->handle, true, timeout_ns); + switch (result) { + case VK_SUCCESS: + fence->is_signaled = true; + return true; + case VK_TIMEOUT: + WARN("vk_fence_wait - Timed out"); + break; + default: + ERROR("vk_fence_wait - Unhanlded error type"); + break; + } + } else { + return true; + } + + return false; + } + void vulkan_fence_reset(vulkan_context * context, vulkan_fence * fence) { + if (fence->is_signaled) { + vkResetFences(context->device.logical_device, 1, &fence->handle); + fence->is_signaled = false; + } + } + + bool gfx_backend_init(renderer * ren) { + INFO("loading Vulkan backend"); + + vulkan_state* internal = malloc(sizeof(vulkan_state)); + ren->backend_state = (void*)internal; + + context.allocator = 0; // TODO: custom allocator + + context.framebuffer_width = SCR_WIDTH; + context.framebuffer_height = SCR_HEIGHT; + + // Setup Vulkan instance + VkApplicationInfo app_info = { VK_STRUCTURE_TYPE_APPLICATION_INFO }; + app_info.apiVersion = VK_API_VERSION_1_3; + app_info.pApplicationName = ren->config.window_name; + app_info.applicationVersion = VK_MAKE_VERSION(1, 0, 0); + app_info.pEngineName = "Celeritas Engine"; + app_info.engineVersion = VK_MAKE_VERSION(1, 0, 0); + + VkInstanceCreateInfo create_info = { VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO }; + create_info.pApplicationInfo = &app_info; + + cstr_darray* required_extensions = cstr_darray_new(2); + cstr_darray_push(required_extensions, VK_KHR_SURFACE_EXTENSION_NAME); + + plat_get_required_extension_names(required_extensions); + +#if defined(CDEBUG) + cstr_darray_push(required_extensions, VK_EXT_DEBUG_UTILS_EXTENSION_NAME); + + DEBUG("Required extensions:"); + for (u32 i = 0; i < cstr_darray_len(required_extensions); i++) { + DEBUG(" %s", required_extensions->data[i]); + } +#endif + + create_info.enabledExtensionCount = cstr_darray_len(required_extensions); + create_info.ppEnabledExtensionNames = required_extensions->data; + + // Validation layers + create_info.enabledLayerCount = 0; + create_info.ppEnabledLayerNames = 0; +#if defined(CDEBUG) + INFO("Validation layers enabled"); + cstr_darray* desired_validation_layers = cstr_darray_new(1); + cstr_darray_push(desired_validation_layers, "VK_LAYER_KHRONOS_validation"); + + u32 n_available_layers = 0; + VK_CHECK(vkEnumerateInstanceLayerProperties(&n_available_layers, 0)); + TRACE("%d available layers", n_available_layers); + VkLayerProperties_darray* available_layers = VkLayerProperties_darray_new(n_available_layers); + VK_CHECK(vkEnumerateInstanceLayerProperties(&n_available_layers, available_layers->data)); + + for (int i = 0; i < cstr_darray_len(desired_validation_layers); i++) { + // look through layers to make sure we can find the ones we want + bool found = false; + for (int j = 0; j < n_available_layers; j++) { + if (str8_equals(str8_cstr_view(desired_validation_layers->data[i]), + str8_cstr_view(available_layers->data[j].layerName))) { + found = true; + TRACE("Found layer %s", desired_validation_layers->data[i]); + break; + } + } + + if (!found) { + FATAL("Required validation is missing %s", desired_validation_layers->data[i]); + return false; + } + } + INFO("All validation layers are present"); + create_info.enabledLayerCount = cstr_darray_len(desired_validation_layers); + create_info.ppEnabledLayerNames = desired_validation_layers->data; +#endif + + VkResult result = vkCreateInstance(&create_info, NULL, &context.instance); + if (result != VK_SUCCESS) { + ERROR("vkCreateInstance failed with result: %u", result); + return false; + } + + // Debugger +#if defined(CDEBUG) + DEBUG("Creating Vulkan debugger") + u32 log_severity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT; + VkDebugUtilsMessengerCreateInfoEXT debug_create_info = { + VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT + }; + debug_create_info.messageSeverity = log_severity; + debug_create_info.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT; + debug_create_info.pfnUserCallback = vk_debug_callback; + + PFN_vkCreateDebugUtilsMessengerEXT func = + (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(context.instance, + "vkCreateDebugUtilsMessengerEXT"); + assert(func); + VK_CHECK(func(context.instance, &debug_create_info, context.allocator, &context.vk_debugger)); + DEBUG("Vulkan debugger created"); + +#endif + + // Surface creation + DEBUG("Create SurfaceKHR") + VkSurfaceKHR surface; + VK_CHECK(glfwCreateWindowSurface(context.instance, ren->window, NULL, &surface)); + context.surface = surface; + DEBUG("Vulkan surface created") + + // Device creation + if (!vulkan_device_create(&context)) { + FATAL("device creation failed"); + return false; + } + + // Swapchain creation + vulkan_swapchain_create(&context, SCR_WIDTH, SCR_HEIGHT, &context.swapchain); + + // Renderpass creation + vulkan_renderpass_create(&context, &context.main_renderpass, + vec4(0, 0, context.framebuffer_width, context.framebuffer_height), + rgba_to_vec4(COLOUR_SEA_GREEN), 1.0, 0); + + // Framebiffers creation + context.swapchain.framebuffers = vulkan_framebuffer_darray_new(context.swapchain.image_count); + regenerate_framebuffers(ren, &context.swapchain, &context.main_renderpass); + INFO("Framebuffers created"); + + // Command buffers creation + create_command_buffers(ren); + INFO("Command buffers created"); + + // Sync objects + context.image_available_semaphores = + calloc(context.swapchain.max_frames_in_flight, sizeof(VkSemaphore)); + context.queue_complete_semaphores = + calloc(context.swapchain.max_frames_in_flight, sizeof(VkSemaphore)); + context.in_flight_fences = calloc(context.swapchain.max_frames_in_flight, sizeof(vulkan_fence)); + + for (u8 i = 0; i < context.swapchain.max_frames_in_flight; i++) { + VkSemaphoreCreateInfo semaphore_create_info = { VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO }; + vkCreateSemaphore(context.device.logical_device, &semaphore_create_info, context.allocator, + &context.image_available_semaphores[i]); + vkCreateSemaphore(context.device.logical_device, &semaphore_create_info, context.allocator, + &context.queue_complete_semaphores[i]); + + // create the fence in a signaled state + vulkan_fence_create(&context, true, &context.in_flight_fences[i]); + } + + context.images_in_flight = + malloc(sizeof(vulkan_fence*) * context.swapchain.max_frames_in_flight); + for (u8 i = 0; i < context.swapchain.max_frames_in_flight; i++) { + context.images_in_flight[i] = 0; + } + INFO("Sync objects created"); + + // Shader modules + vulkan_object_shader_create(&context, &context.object_shader); + INFO("Compiled shader modules") + + create_buffers(&context); + INFO("Created buffers"); + + // TODO: temporary test code + + mesh cube = prim_cube_mesh_create(); + + vertex* verts = malloc(sizeof(vertex) * cube.vertices->len); + + f32 scale = 3.0; + for (size_t i = 0; i < cube.vertices->len; i++) { + verts[i].position = vec3_mult(cube.vertices->data[i].position, scale); + verts[i].normal = cube.vertices->data[i].normal; + verts[i].uv = cube.vertices->data[i].uv; + } + + // const f32 s = 1.0; + // const u32 vert_count = 4; + // vertex_pos verts[4] = { 0 }; + + // verts[0].pos.x = -0.5 * s; + // verts[0].pos.y = -0.5 * s; + + // verts[1].pos.x = 0.5 * s; + // verts[1].pos.y = 0.5 * s; + + // verts[2].pos.x = -0.5 * s; + // verts[2].pos.y = 0.5 * s; + + // verts[3].pos.x = 0.5 * s; + // verts[3].pos.y = -0.5 * s; + + // const u32 index_count = 6; + // u32 indices[6] = { 0, 1, 2, 0, 3, 1 }; + + upload_data_range(&context, context.device.gfx_command_pool, 0, context.device.graphics_queue, + &context.object_vertex_buffer, 0, sizeof(vertex) * cube.vertices->len, verts); + TRACE("Uploaded vertex data"); + upload_data_range(&context, context.device.gfx_command_pool, 0, context.device.graphics_queue, + &context.object_index_buffer, 0, sizeof(u32) * cube.indices_len, + cube.indices); + TRACE("Uploaded index data"); + vertex_darray_free(cube.vertices); + free(cube.indices); + + // upload texture + + // --- End test code + + INFO("Vulkan renderer initialisation succeeded"); + return true; + } + + void gfx_backend_shutdown(renderer * ren) { + DEBUG("Destroying Vulkan debugger"); + if (context.vk_debugger) { + PFN_vkDestroyDebugUtilsMessengerEXT func = + (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr( + context.instance, "vkDestroyDebugUtilsMessengerEXT"); + func(context.instance, context.vk_debugger, context.allocator); + } + + DEBUG("Destroying Vulkan instance..."); + vkDestroyInstance(context.instance, context.allocator); + } + + void backend_begin_frame(renderer * ren, f32 delta_time) { + vulkan_device* device = &context.device; + + // TODO: resize gubbins + + if (!vulkan_fence_wait(&context, &context.in_flight_fences[context.current_frame], + UINT64_MAX)) { + WARN("In-flight fence wait failure"); + } + + if (!vulkan_swapchain_acquire_next_image_index( + &context, &context.swapchain, UINT64_MAX, + context.image_available_semaphores[context.current_frame], 0, &context.image_index)) { + WARN("couldnt acquire swapchain next image"); + } + + vulkan_command_buffer* command_buffer = &context.gfx_command_buffers->data[context.image_index]; + vulkan_command_buffer_reset(command_buffer); + vulkan_command_buffer_begin(command_buffer, false, false, false); + + VkViewport viewport; + viewport.x = 0.0; + viewport.y = 0; + viewport.width = (f32)context.framebuffer_width; + viewport.height = (f32)context.framebuffer_height; + viewport.minDepth = 0.0; + viewport.maxDepth = 1.0; + + VkRect2D scissor; + scissor.offset.x = scissor.offset.y = 0; + scissor.extent.width = context.framebuffer_width; + scissor.extent.height = context.framebuffer_height; + + vkCmdSetViewport(command_buffer->handle, 0, 1, &viewport); + vkCmdSetScissor(command_buffer->handle, 0, 1, &scissor); + + context.main_renderpass.render_area.z = context.framebuffer_width; + context.main_renderpass.render_area.w = context.framebuffer_height; + + vulkan_renderpass_begin(command_buffer, &context.main_renderpass, + context.swapchain.framebuffers->data[context.image_index].handle); + } + + void texture_data_upload(texture * tex) { + printf("Texture name %s\n", tex->name); + tex->backend_data = malloc(sizeof(vulkan_texture_data)); + vulkan_texture_data* data = (vulkan_texture_data*)tex->backend_data; + printf("Texture (%s) details: \n width %d\n height %d\n channel count %d\n", tex->name, + tex->width, tex->height, tex->channel_count); + VkDeviceSize image_size = tex->width * tex->height * max(tex->channel_count, 4); + + TRACE("Creating buffer of size %ld", image_size); + + VkFormat image_format = VK_FORMAT_R8G8B8A8_SRGB; + + VkBufferUsageFlags usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; + VkMemoryPropertyFlags memory_prop_flags = + VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT; + vulkan_buffer staging; + vulkan_buffer_create(&context, image_size, usage, memory_prop_flags, true, &staging); + DEBUG("Uploading image data"); + vulkan_buffer_load_data(&context, &staging, 0, image_size, 0, tex->image_data); + INFO("Loaded iamge data!"); + + vulkan_image_create( + &context, VK_IMAGE_TYPE_2D, tex->width, tex->height, image_format, VK_IMAGE_TILING_OPTIMAL, + VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | + VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, + VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, true, VK_IMAGE_ASPECT_COLOR_BIT, &data->image); + + vulkan_command_buffer temp_buffer; + vulkan_command_buffer_allocate_and_begin_oneshot(&context, context.device.gfx_command_pool, + &temp_buffer); + + vulkan_image_transition_layout(&context, &temp_buffer, &data->image, image_format, + VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL); + + vulkan_image_copy_from_buffer(&data->image, staging.handle, &temp_buffer); + + vulkan_image_transition_layout(&context, &temp_buffer, &data->image, image_format, + VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); + + vulkan_command_buffer_end_oneshot(&context, context.device.gfx_command_pool, &temp_buffer, + context.device.graphics_queue); + + VkSamplerCreateInfo sampler_info = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO }; + sampler_info.magFilter = VK_FILTER_LINEAR; + sampler_info.minFilter = VK_FILTER_LINEAR; + sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.anisotropyEnable = VK_TRUE; + sampler_info.maxAnisotropy = 16; + sampler_info.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK; + sampler_info.unnormalizedCoordinates = VK_FALSE; + sampler_info.compareEnable = VK_FALSE; + sampler_info.compareOp = VK_COMPARE_OP_ALWAYS; + sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR; + sampler_info.mipLodBias = 0.0; + sampler_info.minLod = 0.0; + sampler_info.maxLod = 0.0; + + VkResult res = vkCreateSampler(context.device.logical_device, &sampler_info, context.allocator, + &data->sampler); + if (res != VK_SUCCESS) { + ERROR("Error creating texture sampler for image %s", tex->name); + return; + } + + tex->image_data = (void*)data; + } + + // TODO: destroy texture + + void backend_end_frame(renderer * ren, f32 delta_time) { + vulkan_command_buffer* command_buffer = &context.gfx_command_buffers->data[context.image_index]; + + vulkan_renderpass_end(command_buffer, &context.main_renderpass); + + vulkan_command_buffer_end(command_buffer); + + // TODO: wait on fence - https://youtu.be/hRL71D1f3pU?si=nLJx-ZsemDBeQiQ1&t=1037 + + context.images_in_flight[context.image_index] = + &context.in_flight_fences[context.current_frame]; + + vulkan_fence_reset(&context, &context.in_flight_fences[context.current_frame]); + + VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO }; + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &command_buffer->handle; + submit_info.signalSemaphoreCount = 1; + submit_info.pSignalSemaphores = &context.queue_complete_semaphores[context.current_frame]; + submit_info.waitSemaphoreCount = 1; + submit_info.pWaitSemaphores = &context.image_available_semaphores[context.current_frame]; + + VkPipelineStageFlags flags[1] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT }; + submit_info.pWaitDstStageMask = flags; + + VkResult result = vkQueueSubmit(context.device.graphics_queue, 1, &submit_info, + context.in_flight_fences[context.current_frame].handle); + + if (result != VK_SUCCESS) { + ERROR("queue submission failed. fark."); + } + + vulkan_command_buffer_update_submitted(command_buffer); + + vulkan_swapchain_present( + &context, &context.swapchain, context.device.graphics_queue, context.device.graphics_queue, + context.queue_complete_semaphores[context.current_frame], context.image_index); + } + + void gfx_backend_draw_frame(renderer * ren, camera * cam, mat4 model, texture * tex) { + backend_begin_frame(ren, 16.0); + + mat4 proj; + mat4 view; + + camera_view_projection(cam, SCR_HEIGHT, SCR_WIDTH, &view, &proj); + + context.object_shader.texture_data = (vulkan_texture_data*)tex->image_data; + gfx_backend_update_global_state(proj, view, cam->position, vec4(1.0, 1.0, 1.0, 1.0), 0); + + vulkan_object_shader_update_object(&context, &context.object_shader, model); + + backend_end_frame(ren, 16.0); + } + + void gfx_backend_update_global_state(mat4 projection, mat4 view, vec3 view_pos, + vec4 ambient_colour, i32 mode) { + vulkan_object_shader_use(&context, &context.object_shader); + + vulkan_object_shader_update_global_state(&context, &context.object_shader); + context.object_shader.global_ubo.projection = projection; + context.object_shader.global_ubo.view = view; + // TODO: other UBO properties + } + + void clear_screen(vec3 colour) {} + + void bind_texture(shader s, texture * tex, u32 slot) {} + void bind_mesh_vertex_buffer(void* backend, mesh* mesh) {} + void draw_primitives(cel_primitive_topology primitive, u32 start_index, u32 count) {} + + shader shader_create_separate(const char* vert_shader, const char* frag_shader) {} + void set_shader(shader s) {} + + void uniform_vec3f(u32 program_id, const char* uniform_name, vec3* value) {} + void uniform_f32(u32 program_id, const char* uniform_name, f32 value) {} + void uniform_i32(u32 program_id, const char* uniform_name, i32 value) {} + void uniform_mat4f(u32 program_id, const char* uniform_name, mat4* value) {} + + VKAPI_ATTR VkBool32 VKAPI_CALL vk_debug_callback( + VkDebugUtilsMessageSeverityFlagBitsEXT severity, VkDebugUtilsMessageTypeFlagsEXT flags, + const VkDebugUtilsMessengerCallbackDataEXT* callback_data, void* user_data) { + switch (severity) { + default: + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: + ERROR("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: + WARN("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: + INFO("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: + TRACE("%s", callback_data->pMessage); + break; + } + return VK_FALSE; + } + +#endif
\ No newline at end of file diff --git a/src/renderer/archive/render.c b/src/renderer/archive/render.c new file mode 100644 index 0000000..b1e2a46 --- /dev/null +++ b/src/renderer/archive/render.c @@ -0,0 +1,413 @@ +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "animation.h" +#include "maths_types.h" +#include "mem.h" +#include "transform_hierarchy.h" +#define STB_IMAGE_IMPLEMENTATION +#include <stb_image.h> + +#define STB_TRUETYPE_IMPLEMENTATION +#include <stb_truetype.h> + +#include "render.h" +#include "render_types.h" + +#include <glad/glad.h> +#include <glfw3.h> + +#include "defines.h" +#include "log.h" +#include "maths.h" +#include "render_backend.h" + +// FIXME: get rid of these and store dynamic screen realestate +// in renderer +#define SCR_WIDTH 1000 +#define SCR_HEIGHT 1000 + +material DEFAULT_MATERIAL = { 0 }; + +bool renderer_init(renderer* ren) { + INFO("Renderer init"); + + // NOTE: all platforms use GLFW at the moment but thats subject to change + glfwInit(); + +#if defined(CEL_REND_BACKEND_OPENGL) + glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4); + glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1); + glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); + glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); +#elif defined(CEL_REND_BACKEND_VULKAN) + glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); +#endif + + // glfw window creation + GLFWwindow* window = glfwCreateWindow(ren->config.scr_width, ren->config.scr_height, + ren->config.window_name, NULL, NULL); + if (window == NULL) { + ERROR("Failed to create GLFW window\n"); + glfwTerminate(); + return false; + } + ren->window = window; + + glfwMakeContextCurrent(ren->window); + + DEBUG("init graphics api backend"); + if (!gfx_backend_init(ren)) { + FATAL("Couldnt load graphics api backend"); + return false; + } + + ren->blinn_phong = + shader_create_separate("assets/shaders/blinn_phong.vert", "assets/shaders/blinn_phong.frag"); + + ren->skinned = + shader_create_separate("assets/shaders/skinned.vert", "assets/shaders/blinn_phong.frag"); + + default_material_init(); + + return true; +} + +void renderer_shutdown(renderer* ren) {} + +void render_frame_begin(renderer* ren) { + vec3 color = ren->config.clear_colour; + clear_screen(color); +} +void render_frame_end(renderer* ren) { + // present frame + glfwSwapBuffers(ren->window); + glfwPollEvents(); +} + +void default_material_init() { + INFO("Load default material") + DEFAULT_MATERIAL.ambient_colour = (vec3){ 0.5, 0.5, 0.5 }; + DEFAULT_MATERIAL.diffuse = (vec3){ 0.8, 0.8, 0.8 }; + DEFAULT_MATERIAL.specular = (vec3){ 1.0, 1.0, 1.0 }; + DEFAULT_MATERIAL.diffuse_texture = texture_data_load("assets/textures/white1x1.png", false); + DEFAULT_MATERIAL.specular_texture = texture_data_load("assets/textures/black1x1.png", false); + DEFAULT_MATERIAL.spec_exponent = 32.0; + strcpy(DEFAULT_MATERIAL.name, "Default"); + texture_data_upload(&DEFAULT_MATERIAL.diffuse_texture); + texture_data_upload(&DEFAULT_MATERIAL.specular_texture); +} + +void model_destroy(model* model) { + TRACE("Freeing all data for model %s", model->name); + arena_free_all(&model->animation_data_arena); + arena_free_storage(&model->animation_data_arena); + mesh_darray_free(model->meshes); + material_darray_free(model->materials); + if (model->is_uploaded) { + // Delete gpu buffer data + for (u32 i = 0; i < mesh_darray_len(model->meshes); i++) { + // FIXME: dont leak Opengl + glDeleteBuffers(1, &model->meshes->data[i].vbo); + glDeleteVertexArrays(1, &model->meshes->data[i].vao); + } + } +} + +typedef struct draw_ctx { + model_darray* models; + renderer* ren; + camera* cam; + scene* scene; +} draw_ctx; +bool draw_scene_node(transform_node* node, void* ctx_data) { + if (!node || !node->parent) return true; + draw_ctx* ctx = ctx_data; + model* m = &ctx->models->data[node->model.raw]; + draw_model(ctx->ren, ctx->cam, m, &node->world_matrix_tf, ctx->scene); + return true; +} + +void draw_scene(arena* frame, model_darray* models, renderer* ren, camera* camera, + transform_hierarchy* tfh, scene* scene) { + draw_ctx* ctx = arena_alloc(frame, sizeof(draw_ctx)); + ctx->models = models; + ctx->ren = ren; + ctx->cam = camera; + ctx->scene = scene; + transform_hierarchy_dfs(transform_hierarchy_root_node(tfh), draw_scene_node, true, ctx); +} + +void draw_model(renderer* ren, camera* camera, model* model, mat4* model_tf, scene* scene) { + // TRACE("Drawing model: %s", model->name); + mat4 view; + mat4 proj; + camera_view_projection(camera, SCR_HEIGHT, SCR_WIDTH, &view, &proj); + + set_shader(ren->blinn_phong); + + // set camera uniform + uniform_vec3f(ren->blinn_phong.program_id, "viewPos", &camera->position); + // set light uniforms + dir_light_upload_uniforms(ren->blinn_phong, &scene->dir_light); + for (int i = 0; i < scene->n_point_lights; i++) { + point_light_upload_uniforms(ren->blinn_phong, &scene->point_lights[i], '0' + i); + } + + for (size_t i = 0; i < mesh_darray_len(model->meshes); i++) { + mesh* m = &model->meshes->data[i]; + if (vertex_darray_len(m->vertices) == 0) { + continue; + } + // TRACE("Drawing mesh %d", i); + material* mat = &model->materials->data[m->material_index]; + draw_mesh(ren, m, model_tf, mat, &view, &proj); + } +} + +void draw_mesh(renderer* ren, mesh* mesh, mat4* model_tf, material* mat, mat4* view, mat4* proj) { + shader lighting_shader = ren->blinn_phong; + + // bind buffer + bind_mesh_vertex_buffer(ren->backend_state, mesh); + + // bind textures + bind_texture(lighting_shader, &mat->diffuse_texture, 0); // bind to slot 0 + bind_texture(lighting_shader, &mat->specular_texture, 1); // bind to slot 1 + uniform_f32(lighting_shader.program_id, "material.shininess", 32.); + + // upload model, view, and projection matrices + uniform_mat4f(lighting_shader.program_id, "model", model_tf); + uniform_mat4f(lighting_shader.program_id, "view", view); + uniform_mat4f(lighting_shader.program_id, "projection", proj); + + // draw triangles + u32 num_vertices = vertex_darray_len(mesh->vertices); + draw_primitives(CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, 0, num_vertices); +} + +void draw_skinned_mesh(renderer* ren, mesh* mesh, transform tf, material* mat, mat4* view, + mat4* proj) { + shader lighting_shader = ren->skinned; + + // bind buffer + bind_mesh_vertex_buffer(ren->backend_state, mesh); + + // bind textures + bind_texture(lighting_shader, &mat->diffuse_texture, 0); // bind to slot 0 + bind_texture(lighting_shader, &mat->specular_texture, 1); // bind to slot 1 + + // Uniforms + uniform_f32(lighting_shader.program_id, "material.shininess", 32.); + mat4 trans = mat4_translation(tf.position); + mat4 rot = mat4_rotation(tf.rotation); + mat4 scale = mat4_scale(tf.scale); + mat4 model_tf = mat4_mult(trans, mat4_mult(rot, scale)); + uniform_mat4f(lighting_shader.program_id, "model", &model_tf); + uniform_mat4f(lighting_shader.program_id, "view", view); + uniform_mat4f(lighting_shader.program_id, "projection", proj); + + // bone transforms + size_t n_bones = mesh->bones->len; + + // for now assume correct ordering + mat4* bone_transforms = malloc(n_bones * sizeof(mat4)); + mat4 parent = mat4_ident(); + for (int bone_i = 0; bone_i < n_bones; bone_i++) { + joint j = mesh->bones->data[bone_i]; + transform tf = mesh->bones->data[bone_i].transform_components; + tf.position.y = -tf.position.y; + mat4 local = transform_to_mat(&tf); + mat4 inverse = j.inverse_bind_matrix; + inverse.data[13] = -inverse.data[13]; + mat4 intemediate = mat4_mult(local, inverse); + + bone_transforms[bone_i] = intemediate; + parent = bone_transforms[bone_i]; + } + + // premultiply the inverses + // for (int bone_i = 0; bone_i < n_bones; bone_i++) { + // joint j = mesh->bones->data[bone_i]; + // // bone_transforms[bone_i] = mat4_mult(bone_transforms[bone_i], j.inverse_bind_matrix); + // bone_transforms[bone_i] = mat4_mult(bone_transforms[bone_i], j.inverse_bind_matrix); + // } + + glUniformMatrix4fv(glGetUniformLocation(lighting_shader.program_id, "boneMatrices"), n_bones, + GL_FALSE, &bone_transforms->data[0]); + + free(bone_transforms); + + // draw triangles + u32 num_vertices = vertex_darray_len(mesh->vertices); + draw_primitives(CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, 0, num_vertices); +} + +void draw_skinned_model(renderer* ren, camera* cam, model* model, transform tf, scene* scene) { + mat4 view; + mat4 proj; + camera_view_projection(cam, SCR_HEIGHT, SCR_WIDTH, &view, &proj); + + set_shader(ren->skinned); + + // set camera uniform + uniform_vec3f(ren->skinned.program_id, "viewPos", &cam->position); + // set light uniforms + dir_light_upload_uniforms(ren->skinned, &scene->dir_light); + for (int i = 0; i < scene->n_point_lights; i++) { + point_light_upload_uniforms(ren->skinned, &scene->point_lights[i], '0' + i); + } + + for (size_t i = 0; i < mesh_darray_len(model->meshes); i++) { + mesh* m = &model->meshes->data[i]; + if (vertex_darray_len(m->vertices) == 0) { + continue; + } + // material* mat = &model->materials->data[m->material_index]; + material* mat = &DEFAULT_MATERIAL; + draw_skinned_mesh(ren, m, tf, mat, &view, &proj); + } +} + +void model_upload_meshes(renderer* ren, model* model) { + INFO("Upload mesh vertex data to GPU for model %s", model->name); + + size_t num_meshes = mesh_darray_len(model->meshes); + u32 VBOs[num_meshes]; + u32 VAOs[num_meshes]; + glGenBuffers(num_meshes, VBOs); + glGenVertexArrays(num_meshes, VAOs); + + u64 total_verts = 0; + + TRACE("num meshes %d", num_meshes); + + // upload each mesh to the GPU + for (int mesh_i = 0; mesh_i < num_meshes; mesh_i++) { + mesh mesh = model->meshes->data[mesh_i]; + model->meshes->data[mesh_i].vao = VAOs[mesh_i]; + model->meshes->data[mesh_i].vbo = VBOs[mesh_i]; + // 3. bind buffers + glBindBuffer(GL_ARRAY_BUFFER, VBOs[mesh_i]); + + size_t num_vertices = vertex_darray_len(model->meshes->data[mesh_i].vertices); + // TRACE("Uploading vertex array data: %d verts", num_vertices); + total_verts += num_vertices; + + size_t static_vertex_size = 2 * sizeof(vec3) + sizeof(vec2); + size_t skinned_vertex_size = 2 * sizeof(vec3) + sizeof(vec2) + 4 * sizeof(u32) + sizeof(vec4); + size_t vertex_size = mesh.is_skinned ? skinned_vertex_size : static_vertex_size; + + // TRACE("sizeof(vertex) -> %ld, vertex_size -> %ld\n", sizeof(vertex), vertex_size); + if (mesh.is_skinned) { + assert(vertex_size == (12 + 12 + 8 + 16 + 16)); + } else { + assert(vertex_size == sizeof(vertex)); + assert(vertex_size == 8 * sizeof(float)); + } + + size_t buffer_size = vertex_size * num_vertices; + u8* bytes = malloc(buffer_size); + + for (int i = 0; i < num_vertices; i++) { + u8* p = bytes + vertex_size * i; + memcpy(p, &mesh.vertices->data[i], static_vertex_size); + if (mesh.is_skinned) { + u8* bone_data_offset = p + static_vertex_size; + memcpy(bone_data_offset, &mesh.vertex_bone_data->data[i], sizeof(vertex_bone_data)); + } + } + + // 4. upload data + glBufferData(GL_ARRAY_BUFFER, buffer_size, bytes, GL_STATIC_DRAW); + + // 5. cont. set mesh vertex layout + glBindVertexArray(model->meshes->data[mesh_i].vao); + // position attribute + glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, vertex_size, (void*)0); + glEnableVertexAttribArray(0); + // normal vector attribute + glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, vertex_size, (void*)(3 * sizeof(float))); + glEnableVertexAttribArray(1); + // tex coords + glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, vertex_size, (void*)(6 * sizeof(float))); + glEnableVertexAttribArray(2); + + // skinning (optional) + if (mesh.is_skinned) { + glEnableVertexAttribArray(3); + glVertexAttribIPointer(3, 4, GL_INT, vertex_size, (void*)(8 * sizeof(float))); + + glEnableVertexAttribArray(4); + glVertexAttribPointer(4, 4, GL_FLOAT, GL_FALSE, vertex_size, (void*)(12 * sizeof(float))); + } + } + + INFO("Uploaded %d submeshes with a total of %d vertices\n", num_meshes, total_verts); + + // 6. reset buffer + glBindBuffer(GL_ARRAY_BUFFER, 0); +} + +texture texture_data_load(const char* path, bool invert_y) { + TRACE("Load texture %s", path); + + // load the file data + // texture loading + int width, height, num_channels; + stbi_set_flip_vertically_on_load(invert_y); + +#pragma GCC diagnostic ignored "-Wpointer-sign" + char* data = stbi_load(path, &width, &height, &num_channels, 0); // STBI_rgb_alpha); + if (data) { + DEBUG("loaded texture: %s", path); + } else { + WARN("failed to load texture"); + } + + unsigned int channel_type; + if (num_channels == 4) { + channel_type = GL_RGBA; + } else { + channel_type = GL_RGB; + } + + return (texture){ .texture_id = 0, + .width = width, + .height = height, + .channel_count = num_channels, + .channel_type = channel_type, + .name = "TODO: Texture names", + .image_data = data }; +} + +void dir_light_upload_uniforms(shader shader, directional_light* light) { + uniform_vec3f(shader.program_id, "dirLight.direction", &light->direction); + uniform_vec3f(shader.program_id, "dirLight.ambient", &light->ambient); + uniform_vec3f(shader.program_id, "dirLight.diffuse", &light->diffuse); + uniform_vec3f(shader.program_id, "dirLight.specular", &light->specular); +} + +void point_light_upload_uniforms(shader shader, point_light* light, char index) { + char position_str[] = "pointLights[x].position"; + position_str[12] = (char)index; + char ambient_str[] = "pointLights[x].ambient"; + ambient_str[12] = (char)index; + char diffuse_str[] = "pointLights[x].diffuse"; + diffuse_str[12] = (char)index; + char specular_str[] = "pointLights[x].specular"; + specular_str[12] = (char)index; + char constant_str[] = "pointLights[x].constant"; + constant_str[12] = (char)index; + char linear_str[] = "pointLights[x].linear"; + linear_str[12] = (char)index; + char quadratic_str[] = "pointLights[x].quadratic"; + quadratic_str[12] = (char)index; + uniform_vec3f(shader.program_id, position_str, &light->position); + uniform_vec3f(shader.program_id, ambient_str, &light->ambient); + uniform_vec3f(shader.program_id, diffuse_str, &light->diffuse); + uniform_vec3f(shader.program_id, specular_str, &light->specular); + uniform_f32(shader.program_id, constant_str, light->constant); + uniform_f32(shader.program_id, linear_str, light->linear); + uniform_f32(shader.program_id, quadratic_str, light->quadratic); +}
\ No newline at end of file diff --git a/src/renderer/archive/render.h b/src/renderer/archive/render.h new file mode 100644 index 0000000..31cf3b0 --- /dev/null +++ b/src/renderer/archive/render.h @@ -0,0 +1,46 @@ +/** + * @file render.h + * @author your name (you@domain.com) + * @brief Renderer frontend + * @version 0.1 + * @date 2024-03-21 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once + +#include "camera.h" +#include "loaders.h" +#include "render_types.h" +#include "transform_hierarchy.h" + +// --- Lifecycle +/** @brief initialise the render system frontend */ +bool renderer_init(renderer* ren); +/** @brief shutdown the render system frontend */ +void renderer_shutdown(renderer* ren); + +void renderer_on_resize(renderer* ren); + +struct render_packet; + +// --- Frame + +void render_frame_begin(renderer* ren); +void render_frame_end(renderer* ren); +void render_frame_draw(renderer* ren); + +// --- models meshes +void model_upload_meshes(renderer* ren, model* model); +void draw_model(renderer* ren, camera* camera, model* model, mat4* tf, scene* scene); +void draw_mesh(renderer* ren, mesh* mesh, mat4* tf, material* mat, mat4* view, mat4* proj); +void draw_scene(arena* frame, model_darray* models, renderer* ren, camera* camera, + transform_hierarchy* tfh, scene* scene); + +void draw_skinned_model(renderer* ren, camera* cam, model* model, transform tf, scene* scene); + +void model_destroy(model* model); + +// --- +texture texture_data_load(const char* path, bool invert_y); // #frontend diff --git a/src/renderer/archive/render_backend.h b/src/renderer/archive/render_backend.h new file mode 100644 index 0000000..da30bcc --- /dev/null +++ b/src/renderer/archive/render_backend.h @@ -0,0 +1,39 @@ +/** + * @brief Renderer backend + */ +#pragma once + +#include "camera.h" +#include "maths_types.h" +#include "render_types.h" + +/// --- Lifecycle + +/** @brief Initialise the graphics API backend */ +bool gfx_backend_init(renderer* ren); +void gfx_backend_shutdown(renderer* ren); + +void gfx_backend_draw_frame(renderer* ren, camera* camera, mat4 model, texture* tex); +void gfx_backend_update_global_state(mat4 projection, mat4 view, vec3 view_pos, vec4 ambient_colour, + i32 mode); + +void clear_screen(vec3 colour); + +void texture_data_upload(texture* tex); +void bind_texture(shader s, texture* tex, u32 slot); +void bind_mesh_vertex_buffer(void* backend, mesh* mesh); +void draw_primitives(cel_primitive_topology primitive, u32 start_index, u32 count); + +shader shader_create_separate(const char* vert_shader, const char* frag_shader); +void set_shader(shader s); + +// --- Uniforms + +/** @brief upload a vec3 of f32 to a uniform */ +void uniform_vec3f(u32 program_id, const char* uniform_name, vec3* value); +/** @brief upload a single f32 to a uniform */ +void uniform_f32(u32 program_id, const char* uniform_name, f32 value); +/** @brief upload a integer to a uniform */ +void uniform_i32(u32 program_id, const char* uniform_name, i32 value); +/** @brief upload a mat4 of f32 to a uniform */ +void uniform_mat4f(u32 program_id, const char* uniform_name, mat4* value);
\ No newline at end of file diff --git a/src/renderer/archive/render_types.h b/src/renderer/archive/render_types.h new file mode 100644 index 0000000..f5ea986 --- /dev/null +++ b/src/renderer/archive/render_types.h @@ -0,0 +1,210 @@ +// /** +// * @file render_types.h +// * @author Omniscient +// * @brief Type definitions for the majority of data required by the renderer system +// * @date 2024-02-24 +// * +// */ +// #pragma once + +#include "animation.h" +#include "darray.h" +#include "maths.h" +#include "maths_types.h" +#include "str.h" + +struct GLFWwindow; + +#define MAX_MATERIAL_NAME_LEN 256 +#define MAX_TEXTURE_NAME_LEN 256 + +// #ifndef RESOURCE_HANDLE_DEFS +// // CORE_DEFINE_HANDLE(model_handle); +// #define ABSENT_MODEL_HANDLE 999999999 +// // CORE_DEFINE_HANDLE(texture_handle); +// #define RESOURCE_HANDLE_DEFS +// #endif + +/* @brief Opaque wrapper around a shader program */ +typedef struct shader { + u32 program_id; +} shader; + +/** @brief configuration passed to the renderer at init time */ +typedef struct renderer_config { + char window_name[256]; + u32 scr_width, scr_height; + vec3 clear_colour; /** colour that the screen gets cleared to every frame */ +} renderer_config; + +// typedef struct frame_stats { +// u64 last_time; +// } frame_stats; + +typedef struct renderer { + struct GLFWwindow *window; /** Currently all platforms use GLFW*/ + void *backend_state; /** Graphics API-specific state */ + renderer_config config; + // shaders + shader blinn_phong; + shader skinned; +} renderer; + +// // --- Lighting & Materials + +typedef struct texture { + u32 texture_id; + char name[MAX_TEXTURE_NAME_LEN]; + void *image_data; + void *backend_data; + u32 width; + u32 height; + u8 channel_count; + u32 channel_type; +} texture; + +typedef struct blinn_phong_material { + char name[MAX_MATERIAL_NAME_LEN]; + texture diffuse_texture; + char diffuse_tex_path[256]; + texture specular_texture; + char specular_tex_path[256]; + vec3 ambient_colour; + vec3 diffuse; + vec3 specular; + f32 spec_exponent; + bool is_loaded; + bool is_uploaded; +} blinn_phong_material; +typedef blinn_phong_material material; // when we start using PBR, this will no longer be the +// case + +// // the default blinn-phong material. MUST be initialised with the function below +// extern material DEFAULT_MATERIAL; +// void default_material_init(); + +#ifndef TYPED_MATERIAL_ARRAY +KITC_DECL_TYPED_ARRAY(material) // creates "material_darray" +#define TYPED_MATERIAL_ARRAY +#endif + +#ifndef TYPED_ANIMATION_CLIP_ARRAY +KITC_DECL_TYPED_ARRAY(animation_clip) // creates "material_darray" +#define TYPED_ANIMATION_CLIP_ARRAY +#endif + +// // lights +typedef struct point_light { + vec3 position; + f32 constant, linear, quadratic; + vec3 ambient; + vec3 diffuse; + vec3 specular; +} point_light; + +typedef struct directional_light { + vec3 direction; + vec3 ambient; + vec3 diffuse; + vec3 specular; +} directional_light; + +// void point_light_upload_uniforms(shader shader, point_light *light, char index); +// void dir_light_upload_uniforms(shader shader, directional_light *light); + +// // --- Models & Meshes + +// /** @brief Vertex format for a static mesh */ +typedef struct vertex { + vec3 position; + vec3 normal; + vec2 uv; +} vertex; + +typedef struct vertex_bone_data { + vec4u joints; /** @brief 4 indices of joints that influence vectors position */ + vec4 weights; /** @brief weight (0,1) of each joint */ +} vertex_bone_data; + +#include "animation.h" +#ifndef TYPED_VERTEX_ARRAY +KITC_DECL_TYPED_ARRAY(vertex) // creates "vertex_darray" +KITC_DECL_TYPED_ARRAY(vertex_bone_data) // creates "skinned_vertex_darray" +KITC_DECL_TYPED_ARRAY(joint) +#define TYPED_VERTEX_ARRAY +#endif + +typedef struct mesh { + vertex_darray *vertices; + vertex_bone_data_darray *vertex_bone_data; // only used if model needs it + joint_darray *bones; + bool is_skinned; + u32 vertex_size; /** size in bytes of each vertex including necessary padding */ + bool has_indices; + u32 *indices; + u32 indices_len; + size_t material_index; + u32 vbo, vao; /** OpenGL data. TODO: dont leak OpenGL details */ +} mesh; + +// #ifndef TYPED_MESH_ARRAY +// KITC_DECL_TYPED_ARRAY(mesh) // creates "mesh_darray" +// #define TYPED_MESH_ARRAY +// #endif + +typedef struct model { + str8 name; + mesh_darray *meshes; + aabb_3d bbox; + material_darray *materials; + animation_clip_darray *animations; + arena animation_data_arena; + bool is_loaded; + bool is_uploaded; +} model; + +// #ifndef TYPED_MODEL_ARRAY +// KITC_DECL_TYPED_ARRAY(model) // creates "model_darray" +// #define TYPED_MODEL_ARRAY +// #endif + +// // --- Scene + +// // NOTE: This struct won't stay like this for a long time. It's somewhat temporary +// // in order to get a basic scene working without putting burden on the caller of +// // draw_model() +// typedef struct scene { +// directional_light dir_light; +// point_light point_lights[4]; +// size_t n_point_lights; +// } scene; + +// // --- Graphics API related + +// // typedef enum cel_primitive_topology { +// // CEL_PRIMITIVE_TOPOLOGY_POINT, +// // CEL_PRIMITIVE_TOPOLOGY_LINE, +// // CEL_PRIMITIVE_TOPOLOGY_LINE_STRIP, +// // CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, +// // CEL_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP, +// // CEL_PRIMITIVE_TOPOLOGY_COUNT +// // } cel_primitive_topology; + +// // typedef enum gpu_texture_type { +// // TEXTURE_TYPE_2D, +// // TEXTURE_TYPE_3D, +// // TEXTURE_TYPE_2D_ARRAY, +// // TEXTURE_TYPE_CUBE_MAP, +// // TEXTURE_TYPE_COUNT +// // } gpu_texture_type; + +// // typedef enum gpu_texture_format { +// // TEXTURE_FORMAT_8_8_8_8_RGBA_UNORM, +// // TEXTURE_FORMAT_DEPTH_DEFAULT, +// // TEXTURE_FORMAT_COUNT +// // } gpu_texture_format; + +// // typedef enum pipeline_kind { +// // GRAPHICS, +// // COMPUTE, +// // } pipeline_kind; diff --git a/src/renderer/backends/backend_dx11.c b/src/renderer/backends/backend_dx11.c new file mode 100644 index 0000000..7e48853 --- /dev/null +++ b/src/renderer/backends/backend_dx11.c @@ -0,0 +1,5 @@ +#if defined(CEL_REND_BACKEND_DX11) +#include <d3d11.h> +#include <d3dcompiler.h> + +#endif
\ No newline at end of file diff --git a/src/renderer/backends/backend_dx11.h b/src/renderer/backends/backend_dx11.h new file mode 100644 index 0000000..53738aa --- /dev/null +++ b/src/renderer/backends/backend_dx11.h @@ -0,0 +1,29 @@ +#pragma once +#include <d3d11.h> +#include <d3dcompiler.h> + +#include "ral.h" + +#define GPU_SWAPCHAIN_IMG_COUNT 2 + +// typedef struct gpu_swapchain gpu_swapchain; +typedef struct gpu_device { + // VkPhysicalDevice physical_device; + // VkDevice logical_device; + // VkPhysicalDeviceProperties properties; + // VkPhysicalDeviceFeatures features; + // VkPhysicalDeviceMemoryProperties memory; + // VkCommandPool pool; +} gpu_device; +typedef struct gpu_pipeline { +} gpu_pipeline; + +typedef struct gpu_renderpass { + // VkRenderPass vk_handle; + // VkFramebuffer framebuffers[GPU_SWAPCHAIN_IMG_COUNT]; + // u32 +} gpu_renderpass; + +typedef struct gpu_cmd_encoder { + // VkCommandBuffer cmd_buffer; +} gpu_cmd_encoder;
\ No newline at end of file diff --git a/src/renderer/backends/backend_opengl.c b/src/renderer/backends/backend_opengl.c index ea6cb00..4cd97b5 100644 --- a/src/renderer/backends/backend_opengl.c +++ b/src/renderer/backends/backend_opengl.c @@ -1,11 +1,12 @@ #include <stdlib.h> +#include "camera.h" #define CEL_PLATFORM_LINUX #include "defines.h" #include "file.h" #include "log.h" #include "maths_types.h" -#include "render_types.h" +#include "ral.h" #if CEL_REND_BACKEND_OPENGL @@ -36,10 +37,13 @@ bool gfx_backend_init(renderer *ren) { glEnable(GL_DEPTH_TEST); opengl_state *internal = malloc(sizeof(opengl_state)); - ren->backend_state = (void *)internal; + ren->backend_context = (void *)internal; return true; } + +void gfx_backend_draw_frame(renderer *ren, camera *cam, mat4 model, texture *tex) {} + void gfx_backend_shutdown(renderer *ren) {} void uniform_vec3f(u32 program_id, const char *uniform_name, vec3 *value) { @@ -60,6 +64,29 @@ void clear_screen(vec3 colour) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); } +void texture_data_upload(texture *tex) { + printf("Texture name %s\n", tex->name); + TRACE("Upload texture data"); + u32 texture_id; + glGenTextures(1, &texture_id); + glBindTexture(GL_TEXTURE_2D, texture_id); + tex->texture_id = texture_id; + + // set the texture wrapping parameters + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, + GL_REPEAT); // set texture wrapping to GL_REPEAT (default wrapping method) + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + // set texture filtering parameters + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tex->width, tex->height, 0, tex->channel_type, + GL_UNSIGNED_BYTE, tex->image_data); + glGenerateMipmap(GL_TEXTURE_2D); + DEBUG("Freeing texture image data after uploading to GPU"); + // stbi_image_free(tex->image_data); // data is on gpu now so we dont need it around +} + void bind_texture(shader s, texture *tex, u32 slot) { // printf("bind texture slot %d with texture id %d \n", slot, tex->texture_id); glActiveTexture(GL_TEXTURE0 + slot); diff --git a/src/renderer/backends/backend_vulkan.c b/src/renderer/backends/backend_vulkan.c index 6347e27..ef266e0 100644 --- a/src/renderer/backends/backend_vulkan.c +++ b/src/renderer/backends/backend_vulkan.c @@ -1 +1,1689 @@ -// #FUTURE
\ No newline at end of file +#include <assert.h> +#include <glfw3.h> +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <vulkan/vk_platform.h> +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> + +#include "backend_vulkan.h" +#include "buf.h" +#include "darray.h" +#include "maths_types.h" +#include "mem.h" +#include "ral_types.h" +#include "str.h" +#include "vulkan_helpers.h" + +#include "defines.h" +#include "file.h" +#include "log.h" +#include "ral.h" +#include "utils.h" + +// TEMP +#define SCREEN_WIDTH 1000 +#define SCREEN_HEIGHT 1000 +#define VULKAN_QUEUES_COUNT 2 +#define MAX_DESCRIPTOR_SETS 10 + +const char* queue_names[VULKAN_QUEUES_COUNT] = { "GRAPHICS", "TRANSFER" }; + +KITC_DECL_TYPED_ARRAY(VkDescriptorSet) + +typedef struct vulkan_context { + VkInstance instance; + VkAllocationCallbacks* allocator; + VkSurfaceKHR surface; + vulkan_swapchain_support_info swapchain_support; + + arena temp_arena; + gpu_device* device; + gpu_swapchain* swapchain; + u32 framebuffer_count; + VkFramebuffer* + swapchain_framebuffers; // TODO: Move this data into the swapchain as its own struct + + u32 current_img_index; + u32 current_frame; // super important + gpu_cmd_encoder main_cmd_bufs[MAX_FRAMES_IN_FLIGHT]; + VkSemaphore image_available_semaphores[MAX_FRAMES_IN_FLIGHT]; + VkSemaphore render_finished_semaphores[MAX_FRAMES_IN_FLIGHT]; + VkFence in_flight_fences[MAX_FRAMES_IN_FLIGHT]; + + // HACK + VkRenderPass main_renderpass; + + u32 screen_width; + u32 screen_height; + bool is_resizing; + GLFWwindow* window; + + // Storage + gpu_buffer buffers[1024]; + size_t buffer_count; + VkDescriptorSet_darray* free_set_queue; + struct resource_pools* resource_pools; + + VkDebugUtilsMessengerEXT vk_debugger; +} vulkan_context; + +static vulkan_context context; + +// --- Function forward declarations + +/** @brief Enumerates and selects the most appropriate graphics device */ +bool select_physical_device(gpu_device* out_device); + +bool is_physical_device_suitable(VkPhysicalDevice device); + +queue_family_indices find_queue_families(VkPhysicalDevice device); + +bool create_logical_device(gpu_device* out_device); +void create_swapchain_framebuffers(); +void create_sync_objects(); +void create_descriptor_pools(); +size_t vertex_attrib_size(vertex_attrib_type attr); + +VkShaderModule create_shader_module(str8 spirv); + +/** @brief Helper function for creating array of all extensions we want */ +cstr_darray* get_all_extensions(); + +VkImage vulkan_image_create(u32x2 dimensions, VkImageType image_type, VkFormat format, + VkImageUsageFlags usage); +void vulkan_transition_image_layout(gpu_texture* texture, VkFormat format, VkImageLayout old_layout, + VkImageLayout new_layout); + +// --- Handy macros +#define BUFFER_GET(h) (buffer_pool_get(&context.resource_pools->buffers, h)) +#define TEXTURE_GET(h) (texture_pool_get(&context.resource_pools->textures, h)) + +bool gpu_backend_init(const char* window_name, GLFWwindow* window) { + memset(&context, 0, sizeof(vulkan_context)); + context.allocator = 0; // TODO: use an allocator + context.screen_width = SCREEN_WIDTH; + context.screen_height = SCREEN_HEIGHT; + context.window = window; + context.current_img_index = 0; + context.current_frame = 0; + context.free_set_queue = VkDescriptorSet_darray_new(100); + + // Create an allocator + size_t temp_arena_size = 1024 * 1024; + context.temp_arena = arena_create(malloc(temp_arena_size), temp_arena_size); + + // Setup Vulkan instance + VkApplicationInfo app_info = { VK_STRUCTURE_TYPE_APPLICATION_INFO }; + app_info.apiVersion = VK_API_VERSION_1_2; + app_info.pApplicationName = window_name; + app_info.applicationVersion = VK_MAKE_VERSION(1, 0, 0); + app_info.pEngineName = "Celeritas Engine"; + app_info.engineVersion = VK_MAKE_VERSION(1, 0, 0); + + VkInstanceCreateInfo create_info = { VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO }; + create_info.pApplicationInfo = &app_info; + + // Extensions + cstr_darray* required_extensions = cstr_darray_new(2); + // cstr_darray_push(required_extensions, VK_KHR_SURFACE_EXTENSION_NAME); + + uint32_t count; + const char** extensions = glfwGetRequiredInstanceExtensions(&count); + for (u32 i = 0; i < count; i++) { + cstr_darray_push(required_extensions, extensions[i]); + } + + cstr_darray_push(required_extensions, VK_EXT_DEBUG_UTILS_EXTENSION_NAME); + + DEBUG("Required extensions:"); + for (u32 i = 0; i < cstr_darray_len(required_extensions); i++) { + DEBUG(" %s", required_extensions->data[i]); + } + + create_info.enabledExtensionCount = cstr_darray_len(required_extensions); + create_info.ppEnabledExtensionNames = required_extensions->data; + + // TODO: Validation layers + create_info.enabledLayerCount = 0; + create_info.ppEnabledLayerNames = NULL; + + INFO("Validation layers enabled"); + cstr_darray* desired_validation_layers = cstr_darray_new(1); + cstr_darray_push(desired_validation_layers, "VK_LAYER_KHRONOS_validation"); + + u32 n_available_layers = 0; + VK_CHECK(vkEnumerateInstanceLayerProperties(&n_available_layers, 0)); + TRACE("%d available layers", n_available_layers); + VkLayerProperties* available_layers = + arena_alloc(&context.temp_arena, n_available_layers * sizeof(VkLayerProperties)); + VK_CHECK(vkEnumerateInstanceLayerProperties(&n_available_layers, available_layers)); + + for (int i = 0; i < cstr_darray_len(desired_validation_layers); i++) { + // look through layers to make sure we can find the ones we want + bool found = false; + for (int j = 0; j < n_available_layers; j++) { + if (str8_equals(str8_cstr_view(desired_validation_layers->data[i]), + str8_cstr_view(available_layers[j].layerName))) { + found = true; + TRACE("Found layer %s", desired_validation_layers->data[i]); + break; + } + } + + if (!found) { + FATAL("Required validation is missing %s", desired_validation_layers->data[i]); + return false; + } + } + INFO("All validation layers are present"); + create_info.enabledLayerCount = cstr_darray_len(desired_validation_layers); + create_info.ppEnabledLayerNames = desired_validation_layers->data; + + VkResult result = vkCreateInstance(&create_info, NULL, &context.instance); + if (result != VK_SUCCESS) { + ERROR("vkCreateInstance failed with result: %u", result); + return false; + } + TRACE("Vulkan Instance created"); + + DEBUG("Creating Vulkan debugger"); + u32 log_severity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT; + VkDebugUtilsMessengerCreateInfoEXT debug_create_info = { + VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT + }; + debug_create_info.messageSeverity = log_severity; + debug_create_info.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT | + VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT; + debug_create_info.pfnUserCallback = vk_debug_callback; + + PFN_vkCreateDebugUtilsMessengerEXT func = + (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(context.instance, + "vkCreateDebugUtilsMessengerEXT"); + assert(func); + VK_CHECK(func(context.instance, &debug_create_info, context.allocator, &context.vk_debugger)); + DEBUG("Vulkan Debugger created"); + + // Surface creation + VkSurfaceKHR surface; + VK_CHECK(glfwCreateWindowSurface(context.instance, window, NULL, &surface)); + context.surface = surface; + TRACE("Vulkan Surface created"); + + return true; +} + +void gpu_backend_shutdown() { + gpu_swapchain_destroy(context.swapchain); + + vkDestroySurfaceKHR(context.instance, context.surface, context.allocator); + vkDestroyInstance(context.instance, context.allocator); + arena_free_storage(&context.temp_arena); +} + +bool gpu_device_create(gpu_device* out_device) { + // First things first store this poitner from the renderer + context.device = out_device; + + arena_save savept = arena_savepoint(&context.temp_arena); + // Physical device + if (!select_physical_device(out_device)) { + return false; + } + TRACE("Physical device selected"); + + // Logical device & Queues + create_logical_device(out_device); + + // Create the command pool + VkCommandPoolCreateInfo pool_create_info = { VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO }; + pool_create_info.queueFamilyIndex = out_device->queue_family_indicies.graphics_family_index; + pool_create_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT; + vkCreateCommandPool(out_device->logical_device, &pool_create_info, context.allocator, + &out_device->pool); + TRACE("Command Pool created"); + + // Synchronisation objects + create_sync_objects(); + TRACE("Synchronisation primitives created"); + + arena_rewind(savept); // Free any temp data + return true; +} + +bool gpu_swapchain_create(gpu_swapchain* out_swapchain) { + context.swapchain = out_swapchain; + + out_swapchain->swapchain_arena = arena_create(malloc(1024), 1024); + + vulkan_device_query_swapchain_support(context.device->physical_device, context.surface, + &context.swapchain_support); + vulkan_swapchain_support_info swapchain_support = context.swapchain_support; + + // TODO: custom swapchain extents VkExtent2D swapchain_extent = { width, height }; + + VkSurfaceFormatKHR image_format = choose_swapchain_format(&swapchain_support); + out_swapchain->image_format = image_format; + VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR; // guaranteed to be implemented + out_swapchain->present_mode = present_mode; + + u32 image_count = swapchain_support.capabilities.minImageCount + 1; + out_swapchain->image_count = image_count; + + VkSwapchainCreateInfoKHR swapchain_create_info = { VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR }; + swapchain_create_info.surface = context.surface; + swapchain_create_info.minImageCount = image_count; + swapchain_create_info.imageFormat = image_format.format; + swapchain_create_info.imageColorSpace = image_format.colorSpace; + swapchain_create_info.imageExtent = swapchain_support.capabilities.currentExtent; + swapchain_create_info.imageArrayLayers = 1; + swapchain_create_info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT; + swapchain_create_info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; + swapchain_create_info.queueFamilyIndexCount = 0; + swapchain_create_info.pQueueFamilyIndices = NULL; + + swapchain_create_info.preTransform = swapchain_support.capabilities.currentTransform; + swapchain_create_info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; + swapchain_create_info.presentMode = present_mode; + swapchain_create_info.clipped = VK_TRUE; + swapchain_create_info.oldSwapchain = VK_NULL_HANDLE; + + out_swapchain->extent = swapchain_support.capabilities.currentExtent; + + VK_CHECK(vkCreateSwapchainKHR(context.device->logical_device, &swapchain_create_info, + context.allocator, &out_swapchain->handle)); + TRACE("Vulkan Swapchain created"); + + // Retrieve Images + // out_swapchain->images = + // arena_alloc(&out_swapchain->swapchain_arena, image_count * sizeof(VkImage)); + out_swapchain->images = malloc(image_count * sizeof(VkImage)); + VK_CHECK(vkGetSwapchainImagesKHR(context.device->logical_device, out_swapchain->handle, + &image_count, out_swapchain->images)); + + // Create ImageViews + // TODO: Move this to a separate function + out_swapchain->image_views = malloc(image_count * sizeof(VkImageView)); + // arena_alloc(&out_swapchain->swapchain_arena, image_count * sizeof(VkImageView)); + for (u32 i = 0; i < image_count; i++) { + VkImageViewCreateInfo view_create_info = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO }; + view_create_info.image = out_swapchain->images[i]; + view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D; + view_create_info.format = image_format.format; + view_create_info.components.r = VK_COMPONENT_SWIZZLE_IDENTITY; + view_create_info.components.g = VK_COMPONENT_SWIZZLE_IDENTITY; + view_create_info.components.b = VK_COMPONENT_SWIZZLE_IDENTITY; + view_create_info.components.a = VK_COMPONENT_SWIZZLE_IDENTITY; + view_create_info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + view_create_info.subresourceRange.baseMipLevel = 0; + view_create_info.subresourceRange.levelCount = 1; + view_create_info.subresourceRange.baseArrayLayer = 0; + view_create_info.subresourceRange.layerCount = 1; + vkCreateImageView(context.device->logical_device, &view_create_info, context.allocator, + &out_swapchain->image_views[i]); + } + + return true; +} + +void gpu_swapchain_destroy(gpu_swapchain* swapchain) { + // Destroy Framebuffers + DEBUG("Image count %d", swapchain->image_count); + for (u32 i = 0; i < swapchain->image_count; i++) { + DEBUG("Framebuffer handle %d", context.swapchain_framebuffers[i]); + vkDestroyFramebuffer(context.device->logical_device, context.swapchain_framebuffers[i], + context.allocator); + } + for (u32 i = 0; i < swapchain->image_count; i++) { + vkDestroyImageView(context.device->logical_device, swapchain->image_views[i], + context.allocator); + } + arena_free_all(&swapchain->swapchain_arena); + vkDestroySwapchainKHR(context.device->logical_device, swapchain->handle, context.allocator); + TRACE("Vulkan Swapchain destroyed"); +} + +static void recreate_swapchain(gpu_swapchain* swapchain) { + int width = 0, height = 0; + glfwGetFramebufferSize(context.window, &width, &height); + while (width == 0 || height == 0) { + glfwGetFramebufferSize(context.window, &width, &height); + glfwWaitEvents(); + } + DEBUG("Recreating swapchain..."); + vkDeviceWaitIdle(context.device->logical_device); + + gpu_swapchain_destroy(swapchain); + gpu_swapchain_create(swapchain); + create_swapchain_framebuffers(); +} + +VkFormat format_from_vertex_attr(vertex_attrib_type attr) { + switch (attr) { + case ATTR_F32: + return VK_FORMAT_R32_SFLOAT; + case ATTR_U32: + return VK_FORMAT_R32_UINT; + case ATTR_I32: + return VK_FORMAT_R32_SINT; + case ATTR_F32x2: + return VK_FORMAT_R32G32_SFLOAT; + case ATTR_U32x2: + return VK_FORMAT_R32G32_UINT; + case ATTR_I32x2: + return VK_FORMAT_R32G32_UINT; + case ATTR_F32x3: + return VK_FORMAT_R32G32B32_SFLOAT; + case ATTR_U32x3: + return VK_FORMAT_R32G32B32_UINT; + case ATTR_I32x3: + return VK_FORMAT_R32G32B32_SINT; + case ATTR_F32x4: + return VK_FORMAT_R32G32B32A32_SFLOAT; + case ATTR_U32x4: + return VK_FORMAT_R32G32B32A32_UINT; + case ATTR_I32x4: + return VK_FORMAT_R32G32B32A32_SINT; + } +} + +gpu_pipeline* gpu_graphics_pipeline_create(struct graphics_pipeline_desc description) { + // Allocate + gpu_pipeline_layout* layout = malloc(sizeof(gpu_pipeline_layout)); + gpu_pipeline* pipeline = malloc(sizeof(gpu_pipeline)); + + // Shaders + printf("Vertex shader: %s\n", description.vs.filepath.buf); + printf("Fragment shader: %s\n", description.fs.filepath.buf); + VkShaderModule vertex_shader = create_shader_module(description.vs.code); + VkShaderModule fragment_shader = create_shader_module(description.fs.code); + + // Vertex + VkPipelineShaderStageCreateInfo vert_shader_stage_info = { + VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO + }; + vert_shader_stage_info.stage = VK_SHADER_STAGE_VERTEX_BIT; + vert_shader_stage_info.module = vertex_shader; + vert_shader_stage_info.pName = "main"; + // Fragment + VkPipelineShaderStageCreateInfo frag_shader_stage_info = { + VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO + }; + frag_shader_stage_info.stage = VK_SHADER_STAGE_FRAGMENT_BIT; + frag_shader_stage_info.module = fragment_shader; + frag_shader_stage_info.pName = "main"; + + VkPipelineShaderStageCreateInfo shader_stages[2] = { vert_shader_stage_info, + frag_shader_stage_info }; + + // Attributes + u32 attr_count = description.vertex_desc.attributes_count; + printf("N attributes %d\n", attr_count); + VkVertexInputAttributeDescription attribute_descs[attr_count]; + memset(attribute_descs, 0, attr_count * sizeof(VkVertexInputAttributeDescription)); + u32 offset = 0; + for (u32 i = 0; i < description.vertex_desc.attributes_count; i++) { + attribute_descs[i].binding = 0; + attribute_descs[i].location = i; + attribute_descs[i].format = format_from_vertex_attr(description.vertex_desc.attributes[i]); + attribute_descs[i].offset = offset; + size_t this_offset = vertex_attrib_size(description.vertex_desc.attributes[i]); + printf("offset total %d this attr %ld\n", offset, this_offset); + printf("sizeof vertex %ld\n", sizeof(vertex)); + offset += this_offset; + } + + // Vertex input + // TODO: Generate this from descroiption now + VkVertexInputBindingDescription binding_desc; + binding_desc.binding = 0; + binding_desc.stride = description.vertex_desc.use_full_vertex_size + ? sizeof(vertex) + : description.vertex_desc.stride; + binding_desc.inputRate = VK_VERTEX_INPUT_RATE_VERTEX; + + VkPipelineVertexInputStateCreateInfo vertex_input_info = { + VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO + }; + vertex_input_info.vertexBindingDescriptionCount = 1; + vertex_input_info.pVertexBindingDescriptions = &binding_desc; + vertex_input_info.vertexAttributeDescriptionCount = + attr_count; // description.vertex_desc.attributes_count; + vertex_input_info.pVertexAttributeDescriptions = attribute_descs; + + // Input Assembly + VkPipelineInputAssemblyStateCreateInfo input_assembly = { + VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO + }; + input_assembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; + input_assembly.primitiveRestartEnable = VK_FALSE; + + // Viewport + VkViewport viewport = { .x = 0, + .y = 0, + .width = (f32)context.swapchain->extent.width, + .height = (f32)context.swapchain->extent.height, + .minDepth = 0.0, + .maxDepth = 1.0 }; + VkRect2D scissor = { .offset = { .x = 0, .y = 0 }, .extent = context.swapchain->extent }; + VkPipelineViewportStateCreateInfo viewport_state = { + VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO + }; + viewport_state.viewportCount = 1; + // viewport_state.pViewports = &viewport; + viewport_state.scissorCount = 1; + // viewport_state.pScissors = &scissor; + + // Rasterizer + VkPipelineRasterizationStateCreateInfo rasterizer_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO + }; + rasterizer_create_info.depthClampEnable = VK_FALSE; + rasterizer_create_info.rasterizerDiscardEnable = VK_FALSE; + rasterizer_create_info.polygonMode = + description.wireframe ? VK_POLYGON_MODE_LINE : VK_POLYGON_MODE_FILL; + rasterizer_create_info.lineWidth = 1.0f; + rasterizer_create_info.cullMode = VK_CULL_MODE_BACK_BIT; + rasterizer_create_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE; + /* rasterizer_create_info.frontFace = VK_FRONT_FACE_CLOCKWISE; */ + rasterizer_create_info.depthBiasEnable = VK_FALSE; + rasterizer_create_info.depthBiasConstantFactor = 0.0; + rasterizer_create_info.depthBiasClamp = 0.0; + rasterizer_create_info.depthBiasSlopeFactor = 0.0; + + // Multisampling + VkPipelineMultisampleStateCreateInfo ms_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO + }; + ms_create_info.sampleShadingEnable = VK_FALSE; + ms_create_info.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; + ms_create_info.minSampleShading = 1.0; + ms_create_info.pSampleMask = 0; + ms_create_info.alphaToCoverageEnable = VK_FALSE; + ms_create_info.alphaToOneEnable = VK_FALSE; + + // TODO: Depth and stencil testing + // VkPipelineDepthStencilStateCreateInfo depth_stencil = { + // VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO + // }; + // depth_stencil.depthTestEnable = description.depth_test ? VK_TRUE : VK_FALSE; + // depth_stencil.depthWriteEnable = description.depth_test ? VK_TRUE : VK_FALSE; + // depth_stencil.depthCompareOp = VK_COMPARE_OP_LESS; + // depth_stencil.depthBoundsTestEnable = VK_FALSE; + // depth_stencil.stencilTestEnable = VK_FALSE; + // depth_stencil.pNext = 0; + + // Blending + VkPipelineColorBlendAttachmentState color_blend_attachment_state; + color_blend_attachment_state.blendEnable = VK_FALSE; + color_blend_attachment_state.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; + color_blend_attachment_state.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; + color_blend_attachment_state.colorBlendOp = VK_BLEND_OP_ADD; + color_blend_attachment_state.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; + color_blend_attachment_state.dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; + color_blend_attachment_state.alphaBlendOp = VK_BLEND_OP_ADD; + color_blend_attachment_state.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | + VK_COLOR_COMPONENT_G_BIT | + VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; + + VkPipelineColorBlendStateCreateInfo color_blend = { + VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO + }; + color_blend.logicOpEnable = VK_FALSE; + color_blend.logicOp = VK_LOGIC_OP_COPY; + color_blend.attachmentCount = 1; + color_blend.pAttachments = &color_blend_attachment_state; + +// Dynamic state +#define DYNAMIC_STATE_COUNT 2 + VkDynamicState dynamic_states[DYNAMIC_STATE_COUNT] = { + VK_DYNAMIC_STATE_VIEWPORT, + VK_DYNAMIC_STATE_SCISSOR, + }; + + VkPipelineDynamicStateCreateInfo dynamic_state = { + VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO + }; + dynamic_state.dynamicStateCount = DYNAMIC_STATE_COUNT; + dynamic_state.pDynamicStates = dynamic_states; + + // Descriptor Set layouts + + VkDescriptorSetLayout* desc_set_layouts = + malloc(description.data_layouts_count * sizeof(VkDescriptorSetLayout)); + pipeline->desc_set_layouts = desc_set_layouts; + pipeline->desc_set_layouts_count = description.data_layouts_count; + if (description.data_layouts_count > 0) { + pipeline->uniform_pointers = + malloc(description.data_layouts_count * sizeof(desc_set_uniform_buffer)); + } else { + pipeline->uniform_pointers = NULL; + } + + // assert(description.data_layouts_count == 1); + printf("data layouts %d\n", description.data_layouts_count); + for (u32 layout_i = 0; layout_i < description.data_layouts_count; layout_i++) { + shader_data_layout sdl = description.data_layouts[layout_i].shader_data_get_layout(NULL); + TRACE("Got shader data layout %d's bindings! . found %d", layout_i, sdl.bindings_count); + + VkDescriptorSetLayoutBinding desc_set_bindings[sdl.bindings_count]; + + // Bindings + assert(sdl.bindings_count == 2); + for (u32 binding_j = 0; binding_j < sdl.bindings_count; binding_j++) { + desc_set_bindings[binding_j].binding = binding_j; + desc_set_bindings[binding_j].descriptorCount = 1; + switch (sdl.bindings[binding_j].type) { + case SHADER_BINDING_BUFFER: + case SHADER_BINDING_BYTES: + desc_set_bindings[binding_j].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + desc_set_bindings[binding_j].stageFlags = + VK_SHADER_STAGE_VERTEX_BIT; // FIXME: dont hardcode + + u64 buffer_size = sdl.bindings[binding_j].data.bytes.size; + VkDeviceSize uniform_buf_size = buffer_size; + // TODO: Create backing buffer + + VkBuffer buffers[MAX_FRAMES_IN_FLIGHT]; + VkDeviceMemory uniform_buf_memorys[MAX_FRAMES_IN_FLIGHT]; + void* uniform_buf_mem_mappings[MAX_FRAMES_IN_FLIGHT]; + // void* s? + for (size_t frame_i = 0; frame_i < MAX_FRAMES_IN_FLIGHT; frame_i++) { + buffer_handle uniform_buf_handle = + gpu_buffer_create(buffer_size, CEL_BUFFER_UNIFORM, CEL_BUFFER_FLAG_CPU, NULL); + + gpu_buffer* created_gpu_buffer = + BUFFER_GET(uniform_buf_handle); // context.buffers[uniform_buf_handle.raw]; + buffers[frame_i] = created_gpu_buffer->handle; + uniform_buf_memorys[frame_i] = created_gpu_buffer->memory; + vkMapMemory(context.device->logical_device, uniform_buf_memorys[frame_i], 0, + uniform_buf_size, 0, &uniform_buf_mem_mappings[frame_i]); + // now we have a pointer in unifrom_buf_mem_mappings we can write to + } + + desc_set_uniform_buffer uniform_data; + memcpy(&uniform_data.buffers, &buffers, sizeof(buffers)); + memcpy(&uniform_data.uniform_buf_memorys, &uniform_buf_memorys, + sizeof(uniform_buf_memorys)); + memcpy(&uniform_data.uniform_buf_mem_mappings, &uniform_buf_mem_mappings, + sizeof(uniform_buf_mem_mappings)); + uniform_data.size = buffer_size; + + pipeline->uniform_pointers[binding_j] = uniform_data; + + break; + case SHADER_BINDING_TEXTURE: + desc_set_bindings[binding_j].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + desc_set_bindings[binding_j].stageFlags = + VK_SHADER_STAGE_FRAGMENT_BIT; // FIXME: dont hardcode + desc_set_bindings[binding_j].pImmutableSamplers = NULL; + + break; + default: + ERROR_EXIT("Unimplemented binding type!! in backend_vulkan"); + } + switch (sdl.bindings[binding_j].vis) { + case VISIBILITY_VERTEX: + desc_set_bindings[binding_j].stageFlags = VK_SHADER_STAGE_VERTEX_BIT; + break; + case VISIBILITY_FRAGMENT: + desc_set_bindings[binding_j].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT; + break; + case VISIBILITY_COMPUTE: + WARN("Compute is not implemented yet"); + break; + } + } + + VkDescriptorSetLayoutCreateInfo desc_set_layout_info = { + VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO + }; + desc_set_layout_info.bindingCount = sdl.bindings_count; + desc_set_layout_info.pBindings = desc_set_bindings; + + VK_CHECK(vkCreateDescriptorSetLayout(context.device->logical_device, &desc_set_layout_info, + context.allocator, &desc_set_layouts[layout_i])); + } + printf("Descriptor set layouts\n"); + + // Layout + VkPipelineLayoutCreateInfo pipeline_layout_create_info = { + VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO + }; + pipeline_layout_create_info.setLayoutCount = description.data_layouts_count; + pipeline_layout_create_info.pSetLayouts = desc_set_layouts; + pipeline_layout_create_info.pushConstantRangeCount = 0; + pipeline_layout_create_info.pPushConstantRanges = NULL; + VK_CHECK(vkCreatePipelineLayout(context.device->logical_device, &pipeline_layout_create_info, + context.allocator, &layout->handle)); + pipeline->layout_handle = layout->handle; // keep a copy of the layout on the pipeline object + + VkGraphicsPipelineCreateInfo pipeline_create_info = { + VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO + }; + + pipeline_create_info.stageCount = 2; + pipeline_create_info.pStages = shader_stages; + pipeline_create_info.pVertexInputState = &vertex_input_info; + pipeline_create_info.pInputAssemblyState = &input_assembly; + + pipeline_create_info.pViewportState = &viewport_state; + pipeline_create_info.pRasterizationState = &rasterizer_create_info; + pipeline_create_info.pMultisampleState = &ms_create_info; + pipeline_create_info.pDepthStencilState = NULL; // &depth_stencil; + pipeline_create_info.pColorBlendState = &color_blend; + pipeline_create_info.pDynamicState = &dynamic_state; + pipeline_create_info.pTessellationState = 0; + + pipeline_create_info.layout = layout->handle; + + pipeline_create_info.renderPass = description.renderpass->handle; + pipeline_create_info.subpass = 0; + pipeline_create_info.basePipelineHandle = VK_NULL_HANDLE; + pipeline_create_info.basePipelineIndex = -1; + + printf("About to create graphics pipeline\n"); + + VkResult result = + vkCreateGraphicsPipelines(context.device->logical_device, VK_NULL_HANDLE, 1, + &pipeline_create_info, context.allocator, &pipeline->handle); + if (result != VK_SUCCESS) { + FATAL("graphics pipeline creation failed. its fked mate"); + ERROR_EXIT("Doomed"); + } + TRACE("Vulkan Graphics pipeline created"); + + // once the pipeline has been created we can destroy these + vkDestroyShaderModule(context.device->logical_device, vertex_shader, context.allocator); + vkDestroyShaderModule(context.device->logical_device, fragment_shader, context.allocator); + + // Framebuffers + create_swapchain_framebuffers(); + TRACE("Swapchain Framebuffers created"); + + for (u32 frame_i = 0; frame_i < MAX_FRAMES_IN_FLIGHT; frame_i++) { + context.main_cmd_bufs[frame_i] = gpu_cmd_encoder_create(); + } + TRACE("main Command Buffer created"); + + TRACE("Graphics pipeline created"); + return pipeline; +} + +void gpu_pipeline_destroy(gpu_pipeline* pipeline) { + vkDestroyPipeline(context.device->logical_device, pipeline->handle, context.allocator); + vkDestroyPipelineLayout(context.device->logical_device, pipeline->layout_handle, + context.allocator); +} + +gpu_cmd_encoder* gpu_get_default_cmd_encoder() { + return &context.main_cmd_bufs[context.current_frame]; +} + +gpu_renderpass* gpu_renderpass_create(const gpu_renderpass_desc* description) { + // TEMP: allocate with malloc. in the future we will have a pool allocator on the context + gpu_renderpass* renderpass = malloc(sizeof(gpu_renderpass)); + + // attachments + u32 attachment_desc_count = 2; + VkAttachmentDescription attachment_descriptions[2]; + + // Colour attachment + VkAttachmentDescription color_attachment; + color_attachment.format = context.swapchain->image_format.format; + color_attachment.samples = VK_SAMPLE_COUNT_1_BIT; + color_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; + color_attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE; + color_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE; + color_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + color_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + color_attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR; + color_attachment.flags = 0; + + attachment_descriptions[0] = color_attachment; + + VkAttachmentReference color_attachment_reference; + color_attachment_reference.attachment = 0; + color_attachment_reference.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; + + // Depth attachment + u32x2 ext = { .x = context.swapchain_support.capabilities.currentExtent.width, + .y = context.swapchain_support.capabilities.currentExtent.height }; + texture_desc depth_desc = { .extents = ext, + .format = CEL_TEXTURE_FORMAT_DEPTH_DEFAULT, + .tex_type = CEL_TEXTURE_TYPE_2D }; + texture_handle depth_texture_handle = gpu_texture_create(depth_desc, true, NULL); + gpu_texture* depth = TEXTURE_GET(depth_texture_handle); + + VkAttachmentDescription depth_attachment; + depth_attachment.format = // TODO: context->device.depth_format; + depth_attachment.samples = VK_SAMPLE_COUNT_1_BIT; + depth_attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; + depth_attachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + depth_attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE; + depth_attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; + depth_attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + depth_attachment.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL; + depth_attachment.flags = 0; + + attachment_descriptions[1] = depth_attachment; + + VkAttachmentReference depth_attachment_reference; + depth_attachment_reference.attachment = 1; + depth_attachment_reference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL; + + // main subpass + VkSubpassDescription subpass = { 0 }; + subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS; + subpass.colorAttachmentCount = 1; + subpass.pColorAttachments = &color_attachment_reference; + + // sets everything up + // renderpass dependencies + VkSubpassDependency dependency; + dependency.srcSubpass = VK_SUBPASS_EXTERNAL; + dependency.dstSubpass = 0; + dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + dependency.srcAccessMask = 0; + dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + dependency.dstAccessMask = + VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; + dependency.dependencyFlags = 0; + + // Finally, create the RenderPass + VkRenderPassCreateInfo render_pass_create_info = { VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO }; + render_pass_create_info.attachmentCount = 1; + render_pass_create_info.pAttachments = &color_attachment; + render_pass_create_info.subpassCount = 1; + render_pass_create_info.pSubpasses = &subpass; + render_pass_create_info.dependencyCount = 1; + render_pass_create_info.pDependencies = &dependency; + render_pass_create_info.flags = 0; + render_pass_create_info.pNext = 0; + + VK_CHECK(vkCreateRenderPass(context.device->logical_device, &render_pass_create_info, + context.allocator, &renderpass->handle)); + + // HACK + context.main_renderpass = renderpass->handle; + + return renderpass; +} + +gpu_cmd_encoder gpu_cmd_encoder_create() { + // gpu_cmd_encoder* encoder = malloc(sizeof(gpu_cmd_encoder)); // TODO: fix leaking mem + gpu_cmd_encoder encoder = { 0 }; + + VkCommandBufferAllocateInfo allocate_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO }; + allocate_info.commandPool = context.device->pool; + allocate_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; + allocate_info.commandBufferCount = 1; + allocate_info.pNext = NULL; + + VK_CHECK(vkAllocateCommandBuffers(context.device->logical_device, &allocate_info, + &encoder.cmd_buffer);); + + VkDescriptorPoolSize pool_sizes[2]; + // Uniforms pool + pool_sizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + pool_sizes[0].descriptorCount = MAX_FRAMES_IN_FLIGHT * MAX_DESCRIPTOR_SETS; + // Samplers pool + pool_sizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + pool_sizes[1].descriptorCount = MAX_FRAMES_IN_FLIGHT * MAX_DESCRIPTOR_SETS; + + VkDescriptorPoolCreateInfo pool_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO }; + pool_info.poolSizeCount = 2; + pool_info.pPoolSizes = pool_sizes; + pool_info.maxSets = 100; + + VK_CHECK(vkCreateDescriptorPool(context.device->logical_device, &pool_info, context.allocator, + &encoder.descriptor_pool)); + + return encoder; +} +void gpu_cmd_encoder_destroy(gpu_cmd_encoder* encoder) { + vkFreeCommandBuffers(context.device->logical_device, context.device->pool, 1, + &encoder->cmd_buffer); +} + +void gpu_cmd_encoder_begin(gpu_cmd_encoder encoder) { + VK_CHECK(vkResetDescriptorPool(context.device->logical_device, encoder.descriptor_pool, 0)); + + VkCommandBufferBeginInfo begin_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO }; + VK_CHECK(vkBeginCommandBuffer(encoder.cmd_buffer, &begin_info)); +} + +void gpu_cmd_encoder_begin_render(gpu_cmd_encoder* encoder, gpu_renderpass* renderpass) { + VkRenderPassBeginInfo begin_info = { VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO }; + begin_info.renderPass = renderpass->handle; + /* printf("Current img: %d Current frame %d\n", context.current_img_index, context.current_frame); + */ + begin_info.framebuffer = context.swapchain_framebuffers[context.current_img_index]; + begin_info.renderArea.offset = (VkOffset2D){ 0, 0 }; + begin_info.renderArea.extent = context.swapchain->extent; + + // VkClearValue clear_values[2]; + VkClearValue clear_color = { { { 0.02f, 0.02f, 0.02f, 1.0f } } }; + // clear_values[1].depthStencil.depth = renderpass->depth; + // clear_values[1].depthStencil.stencil = renderpass->stencil; + + begin_info.clearValueCount = 1; + begin_info.pClearValues = &clear_color; + + vkCmdBeginRenderPass(encoder->cmd_buffer, &begin_info, VK_SUBPASS_CONTENTS_INLINE); + // command_buffer->state = COMMAND_BUFFER_STATE_IN_RENDER_PASS; +} + +void gpu_cmd_encoder_end_render(gpu_cmd_encoder* encoder) { + vkCmdEndRenderPass(encoder->cmd_buffer); +} + +gpu_cmd_buffer gpu_cmd_encoder_finish(gpu_cmd_encoder* encoder) { + vkEndCommandBuffer(encoder->cmd_buffer); + + // TEMP: submit + return (gpu_cmd_buffer){ .cmd_buffer = encoder->cmd_buffer }; +} + +// --- Binding +void encode_bind_pipeline(gpu_cmd_encoder* encoder, pipeline_kind kind, gpu_pipeline* pipeline) { + vkCmdBindPipeline(encoder->cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline->handle); + encoder->pipeline = pipeline; +} + +void encode_bind_shader_data(gpu_cmd_encoder* encoder, u32 group, shader_data* data) { + arena tmp = arena_create(malloc(1024), 1024); + + assert(data->data != NULL); + + // Update the local buffer + desc_set_uniform_buffer ubo = encoder->pipeline->uniform_pointers[group]; + memcpy(ubo.uniform_buf_mem_mappings[context.current_frame], data->data, ubo.size); + + VkDescriptorSetAllocateInfo alloc_info = { VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO }; + alloc_info.descriptorPool = encoder->descriptor_pool; + alloc_info.descriptorSetCount = 1; + alloc_info.pSetLayouts = &encoder->pipeline->desc_set_layouts[group]; + + shader_data_layout sdl = data->shader_data_get_layout(data->data); + size_t binding_count = sdl.bindings_count; + assert(binding_count == 2); + + VkDescriptorSet sets[0]; + VK_CHECK(vkAllocateDescriptorSets(context.device->logical_device, &alloc_info, sets)); + // FIXME: hardcoded + VkDescriptorSet_darray_push(context.free_set_queue, sets[0]); + /* VkDescriptorSet_darray_push(context.free_set_queue, sets[1]); */ + + VkWriteDescriptorSet write_sets[binding_count]; + memset(&write_sets, 0, binding_count * sizeof(VkWriteDescriptorSet)); + + for (u32 i = 0; i < sdl.bindings_count; i++) { + shader_binding binding = sdl.bindings[i]; + + if (binding.type == SHADER_BINDING_BUFFER || binding.type == SHADER_BINDING_BYTES) { + VkDescriptorBufferInfo* buffer_info = arena_alloc(&tmp, sizeof(VkDescriptorBufferInfo)); + buffer_info->buffer = ubo.buffers[context.current_frame]; + buffer_info->offset = 0; + buffer_info->range = binding.data.bytes.size; + + write_sets[i].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; + write_sets[i].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; + write_sets[i].descriptorCount = 1; + write_sets[i].dstSet = sets[0]; + write_sets[i].dstBinding = i; + write_sets[i].dstArrayElement = 0; + write_sets[i].pBufferInfo = buffer_info; + } else if (binding.type == SHADER_BINDING_TEXTURE) { + gpu_texture* texture = TEXTURE_GET(binding.data.texture.handle); + VkDescriptorImageInfo* image_info = arena_alloc(&tmp, sizeof(VkDescriptorImageInfo)); + image_info->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; + image_info->imageView = texture->view; + image_info->sampler = texture->sampler; + + write_sets[i].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; + write_sets[i].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; + write_sets[i].descriptorCount = 1; + write_sets[i].dstSet = sets[0]; + write_sets[i].dstBinding = i; + write_sets[i].dstArrayElement = 0; + write_sets[i].pImageInfo = image_info; + } else { + WARN("Unknown binding"); + } + } + + // Update + vkUpdateDescriptorSets(context.device->logical_device, binding_count, write_sets, 0, NULL); + + // Bind + vkCmdBindDescriptorSets(encoder->cmd_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, + encoder->pipeline->layout_handle, 0, 1, sets, 0, NULL); + + arena_free_storage(&tmp); +} + +void encode_set_vertex_buffer(gpu_cmd_encoder* encoder, buffer_handle buf) { + gpu_buffer* buffer = BUFFER_GET(buf); // context.buffers[buf.raw]; + VkBuffer vbs[] = { buffer->handle }; + VkDeviceSize offsets[] = { 0 }; + vkCmdBindVertexBuffers(encoder->cmd_buffer, 0, 1, vbs, offsets); +} + +void encode_set_index_buffer(gpu_cmd_encoder* encoder, buffer_handle buf) { + gpu_buffer* buffer = BUFFER_GET(buf); // context.buffers[buf.raw]; + vkCmdBindIndexBuffer(encoder->cmd_buffer, buffer->handle, 0, VK_INDEX_TYPE_UINT32); +} + +// TEMP +void encode_set_default_settings(gpu_cmd_encoder* encoder) { + VkViewport viewport = { 0 }; + viewport.x = 0.0f; + viewport.y = 0.0f; + viewport.width = context.swapchain->extent.width; + viewport.height = context.swapchain->extent.height; + viewport.minDepth = 0.0f; + viewport.maxDepth = 1.0f; + vkCmdSetViewport(encoder->cmd_buffer, 0, 1, &viewport); + + VkRect2D scissor = { 0 }; + scissor.offset = (VkOffset2D){ 0, 0 }; + scissor.extent = context.swapchain->extent; + vkCmdSetScissor(encoder->cmd_buffer, 0, 1, &scissor); +} + +// --- Drawing + +bool gpu_backend_begin_frame() { + u32 current_frame = context.current_frame; + vkWaitForFences(context.device->logical_device, 1, &context.in_flight_fences[current_frame], + VK_TRUE, UINT64_MAX); + + u32 image_index; + VkResult result = vkAcquireNextImageKHR( + context.device->logical_device, context.swapchain->handle, UINT64_MAX, + context.image_available_semaphores[current_frame], VK_NULL_HANDLE, &image_index); + if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR || context.is_resizing) { + ERROR("Acquire next image failure. recreate swapchain"); + context.is_resizing = false; + recreate_swapchain(context.swapchain); + return false; + } else if (result != VK_SUCCESS) { + ERROR_EXIT("failed to acquire swapchain image"); + } + + vkResetFences(context.device->logical_device, 1, &context.in_flight_fences[current_frame]); + + context.current_img_index = image_index; + VK_CHECK(vkResetCommandBuffer(context.main_cmd_bufs[current_frame].cmd_buffer, 0)); + return true; +} + +void gpu_temp_draw(size_t n_indices) { + gpu_cmd_encoder* encoder = gpu_get_default_cmd_encoder(); // &context.main_cmd_buf; + /* vkCmdDraw(encoder->cmd_buffer, n_verts, 1, 0, 0); */ + vkCmdDrawIndexed(encoder->cmd_buffer, n_indices, 1, 0, 0, 0); +} + +void gpu_backend_end_frame() { + VkPresentInfoKHR present_info = { VK_STRUCTURE_TYPE_PRESENT_INFO_KHR }; + present_info.waitSemaphoreCount = 1; + present_info.pWaitSemaphores = &context.render_finished_semaphores[context.current_frame]; + + VkSwapchainKHR swapchains[] = { context.swapchain->handle }; + present_info.swapchainCount = 1; + present_info.pSwapchains = swapchains; + present_info.pImageIndices = &context.current_img_index; + + VkResult result = vkQueuePresentKHR(context.device->present_queue, &present_info); + if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR) { + ERROR("Queue present error. recreate swapchain"); + recreate_swapchain(context.swapchain); + return; + } else if (result != VK_SUCCESS) { + ERROR_EXIT("failed to present swapchain image"); + } + context.current_frame = (context.current_frame + 1) % MAX_FRAMES_IN_FLIGHT; + + /* vkDeviceWaitIdle(context.device->logical_device); */ +} + +// TODO: Move into better order in file +void gpu_queue_submit(gpu_cmd_buffer* buffer) { + VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO }; + + // Specify semaphore to wait on + VkSemaphore wait_semaphores[] = { context.image_available_semaphores[context.current_frame] }; + VkPipelineStageFlags wait_stages[] = { VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT }; + + submit_info.waitSemaphoreCount = 1; + submit_info.pWaitSemaphores = wait_semaphores; + submit_info.pWaitDstStageMask = wait_stages; + + // Specify semaphore to signal when finished executing buffer + VkSemaphore signal_semaphores[] = { context.render_finished_semaphores[context.current_frame] }; + submit_info.signalSemaphoreCount = 1; + submit_info.pSignalSemaphores = signal_semaphores; + + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &buffer->cmd_buffer; + + VK_CHECK(vkQueueSubmit(context.device->graphics_queue, 1, &submit_info, + context.in_flight_fences[context.current_frame])); +} + +inline void encode_draw_indexed(gpu_cmd_encoder* encoder, u64 index_count) { + vkCmdDrawIndexed(encoder->cmd_buffer, index_count, 1, 0, 0, 0); +} + +bool select_physical_device(gpu_device* out_device) { + u32 physical_device_count = 0; + VK_CHECK(vkEnumeratePhysicalDevices(context.instance, &physical_device_count, 0)); + if (physical_device_count == 0) { + FATAL("No devices that support vulkan were found"); + return false; + } + TRACE("Number of devices found %d", physical_device_count); + + VkPhysicalDevice* physical_devices = + arena_alloc(&context.temp_arena, physical_device_count * sizeof(VkPhysicalDevice)); + VK_CHECK(vkEnumeratePhysicalDevices(context.instance, &physical_device_count, physical_devices)); + + bool found = false; + for (u32 device_i = 0; device_i < physical_device_count; device_i++) { + if (is_physical_device_suitable(physical_devices[device_i])) { + out_device->physical_device = physical_devices[device_i]; + found = true; + break; + } + } + + if (!found) { + FATAL("Couldn't find a suitable physical device"); + return false; + } + + vkGetPhysicalDeviceProperties(out_device->physical_device, &out_device->properties); + vkGetPhysicalDeviceFeatures(out_device->physical_device, &out_device->features); + vkGetPhysicalDeviceMemoryProperties(out_device->physical_device, &out_device->memory); + + return true; +} + +bool is_physical_device_suitable(VkPhysicalDevice device) { + VkPhysicalDeviceProperties properties; + vkGetPhysicalDeviceProperties(device, &properties); + + VkPhysicalDeviceFeatures features; + vkGetPhysicalDeviceFeatures(device, &features); + + VkPhysicalDeviceMemoryProperties memory; + vkGetPhysicalDeviceMemoryProperties(device, &memory); + + // TODO: Check against these device properties + + queue_family_indices indices = find_queue_families(device); + + vulkan_device_query_swapchain_support(device, context.surface, &context.swapchain_support); + + return indices.has_graphics && indices.has_present && context.swapchain_support.mode_count > 0 && + context.swapchain_support.format_count > 0; +} + +queue_family_indices find_queue_families(VkPhysicalDevice device) { + queue_family_indices indices = { 0 }; + + u32 queue_family_count = 0; + vkGetPhysicalDeviceQueueFamilyProperties(device, &queue_family_count, 0); + + VkQueueFamilyProperties* queue_families = + arena_alloc(&context.temp_arena, queue_family_count * sizeof(VkQueueFamilyProperties)); + vkGetPhysicalDeviceQueueFamilyProperties(device, &queue_family_count, queue_families); + + for (u32 q_fam_i = 0; q_fam_i < queue_family_count; q_fam_i++) { + // Graphics queue + if (queue_families[q_fam_i].queueFlags & VK_QUEUE_GRAPHICS_BIT) { + indices.graphics_family_index = q_fam_i; + indices.has_graphics = true; + } + + VkBool32 present_support = false; + vkGetPhysicalDeviceSurfaceSupportKHR(device, q_fam_i, context.surface, &present_support); + if (present_support && !indices.has_present) { + indices.present_family_index = q_fam_i; + indices.has_present = true; + } + } + + return indices; +} + +bool create_logical_device(gpu_device* out_device) { + queue_family_indices indices = find_queue_families(out_device->physical_device); + INFO(" %s | %s | %s | %s | %s", bool_str(indices.has_graphics), bool_str(indices.has_present), + bool_str(indices.has_compute), bool_str(indices.has_transfer), + out_device->properties.deviceName); + TRACE("Graphics Family queue index: %d", indices.graphics_family_index); + TRACE("Present Family queue index: %d", indices.present_family_index); + TRACE("Compute Family queue index: %d", indices.compute_family_index); + TRACE("Transfer Family queue index: %d", indices.transfer_family_index); + + // Queues + f32 prio_one = 1.0; + VkDeviceQueueCreateInfo queue_create_infos[1] = { 0 }; + queue_create_infos[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + queue_create_infos[0].queueFamilyIndex = indices.graphics_family_index; + queue_create_infos[0].queueCount = 1; + queue_create_infos[0].pQueuePriorities = &prio_one; + queue_create_infos[0].flags = 0; + queue_create_infos[0].pNext = 0; + + // queue_create_infos[1].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + // queue_create_infos[1].queueFamilyIndex = indices.present_family_index; + // queue_create_infos[1].queueCount = 1; + // queue_create_infos[1].pQueuePriorities = &prio_one; + // queue_create_infos[1].flags = 0; + // queue_create_infos[1].pNext = 0; + + // Features + VkPhysicalDeviceFeatures device_features = { 0 }; + device_features.samplerAnisotropy = VK_TRUE; // request anistrophy + + // Device itself + VkDeviceCreateInfo device_create_info = { VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO }; + device_create_info.queueCreateInfoCount = 1; + device_create_info.pQueueCreateInfos = queue_create_infos; + device_create_info.pEnabledFeatures = &device_features; + device_create_info.enabledExtensionCount = 1; + const char* extension_names = VK_KHR_SWAPCHAIN_EXTENSION_NAME; + device_create_info.ppEnabledExtensionNames = &extension_names; + + // deprecated + device_create_info.enabledLayerCount = 0; + device_create_info.ppEnabledLayerNames = 0; + + VkResult result = vkCreateDevice(context.device->physical_device, &device_create_info, + context.allocator, &context.device->logical_device); + if (result != VK_SUCCESS) { + printf("error creating logical device with status %u\n", result); + ERROR_EXIT("Unable to create vulkan logical device. Exiting.."); + } + TRACE("Logical device created"); + + context.device->queue_family_indicies = indices; + + // Retrieve queue handles + vkGetDeviceQueue(context.device->logical_device, indices.graphics_family_index, 0, + &context.device->graphics_queue); + vkGetDeviceQueue(context.device->logical_device, indices.present_family_index, 0, + &context.device->present_queue); + + return true; +} + +VkShaderModule create_shader_module(str8 spirv) { + VkShaderModuleCreateInfo create_info = { VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO }; + create_info.codeSize = spirv.len; + create_info.pCode = (uint32_t*)spirv.buf; + + VkShaderModule shader_module; + VK_CHECK(vkCreateShaderModule(context.device->logical_device, &create_info, context.allocator, + &shader_module)); + + return shader_module; +} + +void create_descriptor_pools() {} + +void create_swapchain_framebuffers() { + WARN("Recreating framebuffers..."); + u32 image_count = context.swapchain->image_count; + context.swapchain_framebuffers = + arena_alloc(&context.swapchain->swapchain_arena, image_count * sizeof(VkFramebuffer)); + for (u32 i = 0; i < image_count; i++) { + VkImageView attachments[1] = { context.swapchain->image_views[i] }; + + VkFramebufferCreateInfo framebuffer_create_info = { VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO }; + framebuffer_create_info.attachmentCount = 1; + framebuffer_create_info.pAttachments = attachments; + + framebuffer_create_info.renderPass = + context.main_renderpass; // TODO: description.renderpass->handle; + framebuffer_create_info.width = context.swapchain->extent.width; + framebuffer_create_info.height = context.swapchain->extent.height; + framebuffer_create_info.layers = 1; + + VK_CHECK(vkCreateFramebuffer(context.device->logical_device, &framebuffer_create_info, + context.allocator, &context.swapchain_framebuffers[i])); + } +} + +void create_sync_objects() { + VkSemaphoreCreateInfo semaphore_info = { VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO }; + VkFenceCreateInfo fence_info = { VK_STRUCTURE_TYPE_FENCE_CREATE_INFO }; + fence_info.flags = VK_FENCE_CREATE_SIGNALED_BIT; + + for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { + VK_CHECK(vkCreateSemaphore(context.device->logical_device, &semaphore_info, context.allocator, + &context.image_available_semaphores[i]);); + VK_CHECK(vkCreateSemaphore(context.device->logical_device, &semaphore_info, context.allocator, + &context.render_finished_semaphores[i]);); + + VK_CHECK(vkCreateFence(context.device->logical_device, &fence_info, context.allocator, + &context.in_flight_fences[i])); + } +} + +static i32 find_memory_index(u32 type_filter, u32 property_flags) { + VkPhysicalDeviceMemoryProperties memory_properties; + vkGetPhysicalDeviceMemoryProperties(context.device->physical_device, &memory_properties); + + for (u32 i = 0; i < memory_properties.memoryTypeCount; ++i) { + // Check each memory type to see if its bit is set to 1. + if (type_filter & (1 << i) && + (memory_properties.memoryTypes[i].propertyFlags & property_flags) == property_flags) { + return i; + } + } + + WARN("Unable to find suitable memory type!"); + return -1; +} + +buffer_handle gpu_buffer_create(u64 size, gpu_buffer_type buf_type, gpu_buffer_flags flags, + const void* data) { + VkBufferCreateInfo buffer_info = { VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO }; + buffer_info.size = size; + buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT; + + switch (buf_type) { + case CEL_BUFFER_DEFAULT: + buffer_info.usage |= VK_BUFFER_USAGE_STORAGE_BUFFER_BIT; + break; + case CEL_BUFFER_VERTEX: + buffer_info.usage |= VK_BUFFER_USAGE_VERTEX_BUFFER_BIT; + break; + case CEL_BUFFER_INDEX: + buffer_info.usage |= VK_BUFFER_USAGE_INDEX_BUFFER_BIT; + break; + case CEL_BUFFER_UNIFORM: + buffer_info.usage |= VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT; + break; + case CEL_BUFFER_COUNT: + WARN("Incorrect gpu_buffer_type provided. using default"); + break; + } + + buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + + // "allocating" the cpu-side buffer struct + /* gpu_buffer buffer; */ + /* buffer.size = size; */ + buffer_handle handle; + gpu_buffer* buffer = buffer_pool_alloc(&context.resource_pools->buffers, &handle); + buffer->size = size; + + VK_CHECK(vkCreateBuffer(context.device->logical_device, &buffer_info, context.allocator, + &buffer->handle)); + + VkMemoryRequirements requirements; + vkGetBufferMemoryRequirements(context.device->logical_device, buffer->handle, &requirements); + + // Just make them always need all of them for now + i32 memory_index = + find_memory_index(requirements.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | + VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | + VK_MEMORY_PROPERTY_HOST_COHERENT_BIT); + + // Allocate the actual VRAM + VkMemoryAllocateInfo allocate_info = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; + allocate_info.allocationSize = requirements.size; + allocate_info.memoryTypeIndex = (u32)memory_index; + + vkAllocateMemory(context.device->logical_device, &allocate_info, context.allocator, + &buffer->memory); + vkBindBufferMemory(context.device->logical_device, buffer->handle, buffer->memory, 0); + + /* Now there are two options: + * 1. create CPU-accessible memory -> map memory -> memcpy -> unmap + * 2. use a staging buffer thats CPU-accessible and copy its contents to a + * GPU-only buffer + */ + + /* context.buffers[context.buffer_count] = buffer; */ + /* context.buffer_count++; */ + + if (data) { + TRACE("Upload data as part of buffer creation"); + if (flags & CEL_BUFFER_FLAG_CPU) { + // map memory -> copy data in -> unmap memory + buffer_upload_bytes(handle, (bytebuffer){ .buf = (u8*)data, .size = size }, 0, size); + } else if (flags & CEL_BUFFER_FLAG_GPU) { + TRACE("Uploading data to buffer using staging buffer"); + // Create a staging buffer + buffer_handle staging = gpu_buffer_create(size, buf_type, CEL_BUFFER_FLAG_CPU, NULL); + + // Copy data into it + buffer_upload_bytes(staging, (bytebuffer){ .buf = (u8*)data, .size = size }, 0, size); + + // Enqueue a copy from the staging buffer into the DEVICE_LOCAL buffer + gpu_cmd_encoder temp_encoder = gpu_cmd_encoder_create(); + gpu_cmd_encoder_begin(temp_encoder); + encode_buffer_copy(&temp_encoder, staging, 0, handle, 0, size); + gpu_cmd_buffer copy_cmd_buffer = gpu_cmd_encoder_finish(&temp_encoder); + + VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO }; + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &temp_encoder.cmd_buffer; + vkQueueSubmit(context.device->graphics_queue, 1, &submit_info, VK_NULL_HANDLE); + + // Cleanup + vkQueueWaitIdle(context.device->graphics_queue); + gpu_cmd_encoder_destroy(&temp_encoder); + gpu_buffer_destroy(staging); + } + } + + return handle; +} + +void gpu_buffer_destroy(buffer_handle buffer) { + gpu_buffer* b = buffer_pool_get(&context.resource_pools->buffers, buffer); + vkDestroyBuffer(context.device->logical_device, b->handle, context.allocator); + vkFreeMemory(context.device->logical_device, b->memory, context.allocator); + buffer_pool_dealloc(&context.resource_pools->buffers, buffer); +} + +// Upload data to a +void buffer_upload_bytes(buffer_handle gpu_buf, bytebuffer cpu_buf, u64 offset, u64 size) { + gpu_buffer* buffer = buffer_pool_get(&context.resource_pools->buffers, gpu_buf); + void* data_ptr; + vkMapMemory(context.device->logical_device, buffer->memory, 0, size, 0, &data_ptr); + DEBUG("Uploading %d bytes to buffer", size); + memcpy(data_ptr, cpu_buf.buf, size); + vkUnmapMemory(context.device->logical_device, buffer->memory); +} + +void encode_buffer_copy(gpu_cmd_encoder* encoder, buffer_handle src, u64 src_offset, + buffer_handle dst, u64 dst_offset, u64 copy_size) { + VkBufferCopy copy_region; + copy_region.srcOffset = src_offset; + copy_region.dstOffset = dst_offset; + copy_region.size = copy_size; + + gpu_buffer* src_buf = buffer_pool_get(&context.resource_pools->buffers, src); + gpu_buffer* dst_buf = buffer_pool_get(&context.resource_pools->buffers, dst); + vkCmdCopyBuffer(encoder->cmd_buffer, src_buf->handle, dst_buf->handle, 1, ©_region); +} + +// one-shot command buffers +VkCommandBuffer vulkan_command_buffer_create_oneshot() { + VkCommandBufferAllocateInfo alloc_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO }; + alloc_info.commandPool = context.device->pool; + alloc_info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; + alloc_info.commandBufferCount = 1; + alloc_info.pNext = 0; + + VkCommandBuffer cmd_buffer; + vkAllocateCommandBuffers(context.device->logical_device, &alloc_info, &cmd_buffer); + + VkCommandBufferBeginInfo begin_info = { VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO }; + begin_info.flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; + + vkBeginCommandBuffer(cmd_buffer, &begin_info); + + return cmd_buffer; +} + +void vulkan_command_buffer_finish_oneshot(VkCommandBuffer cmd_buffer) { + VK_CHECK(vkEndCommandBuffer(cmd_buffer)); + + // submit to queue + VkSubmitInfo submit_info = { VK_STRUCTURE_TYPE_SUBMIT_INFO }; + submit_info.commandBufferCount = 1; + submit_info.pCommandBuffers = &cmd_buffer; + VK_CHECK(vkQueueSubmit(context.device->graphics_queue, 1, &submit_info, 0)); + VK_CHECK(vkQueueWaitIdle(context.device->graphics_queue)); + + vkFreeCommandBuffers(context.device->logical_device, context.device->pool, 1, &cmd_buffer); +} + +void copy_buffer_to_buffer_oneshot(buffer_handle src, u64 src_offset, buffer_handle dst, + u64 dst_offset, u64 copy_size) { + VkBufferCopy copy_region; + copy_region.srcOffset = src_offset; + copy_region.dstOffset = dst_offset; + copy_region.size = copy_size; + + gpu_buffer* src_buf = buffer_pool_get(&context.resource_pools->buffers, src); + gpu_buffer* dst_buf = buffer_pool_get(&context.resource_pools->buffers, dst); + VkCommandBuffer temp_cmd_buffer = vulkan_command_buffer_create_oneshot(); + vkCmdCopyBuffer(temp_cmd_buffer, src_buf->handle, dst_buf->handle, 1, ©_region); + vulkan_command_buffer_finish_oneshot(temp_cmd_buffer); +} + +void copy_buffer_to_image_oneshot(buffer_handle src, texture_handle dst) { + gpu_buffer* src_buf = buffer_pool_get(&context.resource_pools->buffers, src); + gpu_texture* dst_tex = texture_pool_get(&context.resource_pools->textures, dst); + + VkCommandBuffer temp_cmd_buffer = vulkan_command_buffer_create_oneshot(); + + VkBufferImageCopy region; + region.bufferOffset = 0; + region.bufferRowLength = 0; + region.bufferImageHeight = 0; + region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + region.imageSubresource.mipLevel = 0; + region.imageSubresource.baseArrayLayer = 0; + region.imageSubresource.layerCount = 1; + printf("Image details width: %d height %d\n", dst_tex->desc.extents.x, dst_tex->desc.extents.y); + region.imageOffset.x = 0; + region.imageOffset.y = 0; + region.imageOffset.z = 0; + region.imageExtent.width = dst_tex->desc.extents.x; + region.imageExtent.height = dst_tex->desc.extents.y; + region.imageExtent.depth = 1; + + vkCmdCopyBufferToImage(temp_cmd_buffer, src_buf->handle, dst_tex->handle, + VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion); + + vulkan_command_buffer_finish_oneshot(temp_cmd_buffer); +} + +VkImage vulkan_image_create(u32x2 dimensions, VkImageType image_type, VkFormat format, + VkImageUsageFlags usage) { + VkImage image; + + VkImageCreateInfo image_create_info = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; + image_create_info.imageType = VK_IMAGE_TYPE_2D; + image_create_info.extent.width = dimensions.x; + image_create_info.extent.height = dimensions.y; + image_create_info.extent.depth = 1; + image_create_info.mipLevels = 1; + image_create_info.arrayLayers = 1; + image_create_info.format = format; + image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL; + image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + image_create_info.usage = usage; // VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT; + image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + image_create_info.samples = VK_SAMPLE_COUNT_1_BIT; + + VK_CHECK( + vkCreateImage(context.device->logical_device, &image_create_info, context.allocator, &image)); + + return image; +} + +texture_handle gpu_texture_create(texture_desc desc, bool create_view, const void* data) { + VkDeviceSize image_size = desc.extents.x * desc.extents.y * 4; + // FIXME: handle this properly + VkFormat format = desc.format == CEL_TEXTURE_FORMAT_8_8_8_8_RGBA_UNORM ? VK_FORMAT_R8G8B8A8_SRGB + : VK_FORMAT_D32_SFLOAT; + + VkImage image; // vulkan_image_create(desc.extents, VK_IMAGE_TYPE_2D, format, + // VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT); + VkDeviceMemory image_memory; + + VkImageCreateInfo image_create_info = { VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO }; + image_create_info.imageType = VK_IMAGE_TYPE_2D; + image_create_info.extent.width = desc.extents.x; + image_create_info.extent.height = desc.extents.y; + image_create_info.extent.depth = 1; + image_create_info.mipLevels = 1; + image_create_info.arrayLayers = 1; + image_create_info.format = format; + image_create_info.tiling = VK_IMAGE_TILING_OPTIMAL; + image_create_info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; + image_create_info.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT; + if (format == VK_FORMAT_D32_SFLOAT) { + image_create_info.usage |= VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT; + } + image_create_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; + image_create_info.samples = VK_SAMPLE_COUNT_1_BIT; + + VK_CHECK( + vkCreateImage(context.device->logical_device, &image_create_info, context.allocator, &image)); + + VkMemoryRequirements memory_reqs; + vkGetImageMemoryRequirements(context.device->logical_device, image, &memory_reqs); + + VkMemoryAllocateInfo alloc_info = { VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO }; + alloc_info.allocationSize = memory_reqs.size; + alloc_info.memoryTypeIndex = + find_memory_index(memory_reqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT); + vkAllocateMemory(context.device->logical_device, &alloc_info, context.allocator, &image_memory); + + vkBindImageMemory(context.device->logical_device, image, image_memory, 0); + + texture_handle handle; + gpu_texture* texture = texture_pool_alloc(&context.resource_pools->textures, &handle); + DEBUG("Allocated texture with handle %d", handle.raw); + texture->handle = image; + texture->debug_label = "Test Texture"; + texture->desc = desc; + texture->memory = image_memory; + texture->size = image_size; + + if (data) { + TRACE("Uploading pixel data to texture using staging buffer"); + // Create a staging buffer + buffer_handle staging = + gpu_buffer_create(image_size, CEL_BUFFER_DEFAULT, CEL_BUFFER_FLAG_CPU, NULL); + // Copy data into it + vulkan_transition_image_layout(texture, format, VK_IMAGE_LAYOUT_UNDEFINED, + VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL); + buffer_upload_bytes(staging, (bytebuffer){ .buf = (u8*)data, .size = image_size }, 0, + image_size); + copy_buffer_to_image_oneshot(staging, handle); + vulkan_transition_image_layout(texture, format, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, + VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); + + gpu_buffer_destroy(staging); + } + + // Texture View + if (create_view) { + VkImageViewCreateInfo view_create_info = { VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO }; + view_create_info.image = image; + view_create_info.viewType = VK_IMAGE_VIEW_TYPE_2D; + view_create_info.format = format; + view_create_info.subresourceRange.aspectMask = + format == VK_FORMAT_D32_SFLOAT ? VK_IMAGE_ASPECT_DEPTH_BIT : VK_IMAGE_ASPECT_COLOR_BIT; + + view_create_info.subresourceRange.baseMipLevel = 0; + view_create_info.subresourceRange.levelCount = 1; + view_create_info.subresourceRange.baseArrayLayer = 0; + view_create_info.subresourceRange.layerCount = 1; + + VK_CHECK(vkCreateImageView(context.device->logical_device, &view_create_info, context.allocator, + &texture->view)); + } + + // Sampler + VkSamplerCreateInfo sampler_info = { VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO }; + sampler_info.magFilter = VK_FILTER_LINEAR; + sampler_info.minFilter = VK_FILTER_LINEAR; + sampler_info.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT; + sampler_info.anisotropyEnable = VK_TRUE; + sampler_info.maxAnisotropy = 16; + sampler_info.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK; + sampler_info.unnormalizedCoordinates = VK_FALSE; + sampler_info.compareEnable = VK_FALSE; + sampler_info.compareOp = VK_COMPARE_OP_ALWAYS; + sampler_info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR; + sampler_info.mipLodBias = 0.0; + sampler_info.minLod = 0.0; + sampler_info.maxLod = 0.0; + + VkResult res = vkCreateSampler(context.device->logical_device, &sampler_info, context.allocator, + &texture->sampler); + if (res != VK_SUCCESS) { + ERROR("Error creating texture sampler for image %s", texture->debug_label); + return; + } + + return handle; +} + +void vulkan_transition_image_layout(gpu_texture* texture, VkFormat format, VkImageLayout old_layout, + VkImageLayout new_layout) { + VkCommandBuffer temp_cmd_buffer = vulkan_command_buffer_create_oneshot(); + + VkImageMemoryBarrier barrier = { VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER }; + barrier.oldLayout = old_layout; + barrier.newLayout = new_layout; + barrier.srcQueueFamilyIndex = context.device->queue_family_indicies.graphics_family_index; + barrier.dstQueueFamilyIndex = context.device->queue_family_indicies.graphics_family_index; + barrier.image = texture->handle; + barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; + barrier.subresourceRange.baseMipLevel = 0; + barrier.subresourceRange.levelCount = 1; + barrier.subresourceRange.baseArrayLayer = 0; + barrier.subresourceRange.layerCount = 1; + barrier.srcAccessMask = 0; // TODO + barrier.dstAccessMask = 0; // TODO + + VkPipelineStageFlags source_stage; + VkPipelineStageFlags dest_stage; + + if (old_layout == VK_IMAGE_LAYOUT_UNDEFINED && + new_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL) { + barrier.srcAccessMask = 0; + barrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; + + source_stage = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; + dest_stage = VK_PIPELINE_STAGE_TRANSFER_BIT; + + } else if (old_layout == VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL && + new_layout == VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) { + barrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; + barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT; + source_stage = VK_PIPELINE_STAGE_TRANSFER_BIT; + dest_stage = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT; + } else { + FATAL("Unsupported image layout transition"); + return; + } + + vkCmdPipelineBarrier(temp_cmd_buffer, source_stage, dest_stage, 0, 0, 0, 0, 0, 1, &barrier); + + vulkan_command_buffer_finish_oneshot(temp_cmd_buffer); +} + +/* TYPED_POOL(gpu_buffer, buffer); */ +/* TYPED_POOL(gpu_texture, texture); */ + +void resource_pools_init(arena* a, struct resource_pools* res_pools) { + buffer_pool buf_pool = buffer_pool_create(a, MAX_BUFFERS, sizeof(gpu_buffer)); + res_pools->buffers = buf_pool; + texture_pool tex_pool = texture_pool_create(a, MAX_TEXTURES, sizeof(gpu_texture)); + res_pools->textures = tex_pool; + + context.resource_pools = res_pools; +} diff --git a/src/renderer/backends/backend_vulkan.h b/src/renderer/backends/backend_vulkan.h new file mode 100644 index 0000000..dc0f7bd --- /dev/null +++ b/src/renderer/backends/backend_vulkan.h @@ -0,0 +1,115 @@ +#pragma once +#include <vulkan/vk_platform.h> +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> + +#include "defines.h" +#include "mem.h" +#include "ral.h" +#include "ral_types.h" + +#define MAX_FRAMES_IN_FLIGHT 2 +#define GPU_SWAPCHAIN_IMG_COUNT 2 + +/* +Conventions: + - Place the 'handle' as the first field of a struct + - Vulkan specific data goes at the top, followed by our internal data +*/ + +typedef struct queue_family_indices { + u32 graphics_family_index; + u32 present_family_index; + u32 compute_family_index; + u32 transfer_family_index; + bool has_graphics; + bool has_present; + bool has_compute; + bool has_transfer; +} queue_family_indices; + +// typedef struct vulkan_framebuffer { +// } vulkan_framebuffer; + +typedef struct gpu_swapchain { + VkSwapchainKHR handle; + arena swapchain_arena; + VkExtent2D extent; + VkSurfaceFormatKHR image_format; + VkPresentModeKHR present_mode; + u32 image_count; + VkImage* images; + VkImageView* image_views; +} gpu_swapchain; + +typedef struct gpu_device { + // In Vulkan we store both physical and logical device here + VkPhysicalDevice physical_device; + VkDevice logical_device; + VkPhysicalDeviceProperties properties; + VkPhysicalDeviceFeatures features; + VkPhysicalDeviceMemoryProperties memory; + queue_family_indices queue_family_indicies; + VkQueue graphics_queue; + VkQueue present_queue; + VkQueue compute_queue; + VkQueue transfer_queue; + VkCommandPool pool; +} gpu_device; + +typedef struct gpu_pipeline_layout { + VkPipelineLayout handle; +} gpu_pipeline_layout; + +typedef struct desc_set_uniform_buffer { + VkBuffer buffers[MAX_FRAMES_IN_FLIGHT]; + VkDeviceMemory uniform_buf_memorys[MAX_FRAMES_IN_FLIGHT]; + void* uniform_buf_mem_mappings[MAX_FRAMES_IN_FLIGHT]; + size_t size; +} desc_set_uniform_buffer; + +typedef struct gpu_pipeline { + VkPipeline handle; + VkPipelineLayout layout_handle; + + // Descriptor gubbins + shader_data data_layouts[MAX_SHADER_DATA_LAYOUTS]; + u32 data_layouts_count; + + VkDescriptorSetLayout* desc_set_layouts; + // Based on group, we know which data to load + desc_set_uniform_buffer* uniform_pointers; + u32 desc_set_layouts_count; + +} gpu_pipeline; + +typedef struct gpu_renderpass { + VkRenderPass handle; + // TODO: Where to store framebuffers? VkFramebuffer framebuffers[GPU_SWAPCHAIN_IMG_COUNT]; +} gpu_renderpass; + +typedef struct gpu_cmd_encoder { + VkCommandBuffer cmd_buffer; + VkDescriptorPool descriptor_pool; + gpu_pipeline* pipeline; +} gpu_cmd_encoder; + +typedef struct gpu_cmd_buffer { + VkCommandBuffer cmd_buffer; +} gpu_cmd_buffer; + +typedef struct gpu_buffer { + VkBuffer handle; + VkDeviceMemory memory; + u64 size; +} gpu_buffer; + +typedef struct gpu_texture { + VkImage handle; + VkDeviceMemory memory; + u64 size; + texture_desc desc; + VkImageView view; + VkSampler sampler; + char* debug_label; +} gpu_texture; diff --git a/src/renderer/backends/metal/README.md b/src/renderer/backends/metal/README.md new file mode 100644 index 0000000..f87f5c1 --- /dev/null +++ b/src/renderer/backends/metal/README.md @@ -0,0 +1 @@ +# TODO
\ No newline at end of file diff --git a/src/renderer/backends/opengl/README.md b/src/renderer/backends/opengl/README.md new file mode 100644 index 0000000..f87f5c1 --- /dev/null +++ b/src/renderer/backends/opengl/README.md @@ -0,0 +1 @@ +# TODO
\ No newline at end of file diff --git a/src/renderer/backends/vulkan/README.md b/src/renderer/backends/vulkan/README.md new file mode 100644 index 0000000..220ed64 --- /dev/null +++ b/src/renderer/backends/vulkan/README.md @@ -0,0 +1 @@ +# Vulkan Backend Overview
\ No newline at end of file diff --git a/src/renderer/backends/vulkan/vulkan_glossary.md b/src/renderer/backends/vulkan/vulkan_glossary.md new file mode 100644 index 0000000..4214f9d --- /dev/null +++ b/src/renderer/backends/vulkan/vulkan_glossary.md @@ -0,0 +1,18 @@ +# Vulkan Glossary + +*from https://vkguide.dev/docs/introduction/vulkan_execution/* + +- **VkInstance**: The Vulkan context, used to access drivers. +- **VkPhysicalDevice**: A GPU. Used to query physical GPU details, like features, capabilities, memory size, etc. +- **VkDevice**: The “logical” GPU context that you actually execute things on. +- **VkBuffer**: A chunk of GPU visible memory. +- **VkImage**: A texture you can write to and read from. +- **VkPipeline**: Holds the state of the gpu needed to draw. For example: shaders, rasterization options, depth settings. +- **VkRenderPass**: Holds information about the images you are rendering into. All drawing commands have to be done inside a renderpass. Only used in legacy vkguide. +- **VkFrameBuffer**: Holds the target images for a renderpass. Only used in legacy vkguide. +- **VkCommandBuffer**: Encodes GPU commands. All execution that is performed on the GPU itself (not in the driver) has to be encoded in a VkCommandBuffer. +- **VkQueue**: Execution “port” for commands. GPUs will have a set of queues with different properties. Some allow only graphics commands, others only allow memory commands, etc. Command buffers are executed by submitting them into a queue, which will copy the rendering commands onto the GPU for execution. +- **VkDescriptorSet**: Holds the binding information that connects shader inputs to data such as VkBuffer resources and VkImage textures. Think of it as a set of gpu-side pointers that you bind once. +- **VkSwapchainKHR**: Holds the images for the screen. It allows you to render things into a visible window. The KHR suffix shows that it comes from an extension, which in this case is VK_KHR_swapchain. +- **VkSemaphore**: Synchronizes GPU to GPU execution of commands. Used for syncing multiple command buffer submissions one after another. +- **VkFence**: Synchronizes GPU to CPU execution of commands. Used to know if a command buffer has finished being executed on the GPU. diff --git a/src/renderer/backends/vulkan_helpers.h b/src/renderer/backends/vulkan_helpers.h new file mode 100644 index 0000000..23666c6 --- /dev/null +++ b/src/renderer/backends/vulkan_helpers.h @@ -0,0 +1,199 @@ +#pragma once + +#include <assert.h> +#include <vulkan/vulkan.h> +#include <vulkan/vulkan_core.h> + +#include "darray.h" +#include "defines.h" +#include "log.h" +#include "str.h" + +#define VULKAN_PHYS_DEVICE_MAX_EXTENSION_NAMES 36 + +DECL_TYPED_ARRAY(const char*, cstr) + +static void plat_get_required_extension_names(cstr_darray* extensions) { +#ifdef CEL_PLATFORM_LINUX + cstr_darray_push(extensions, "VK_KHR_xcb_surface"); +#endif +} + +// TODO(omni): port to using internal assert functions +#define VK_CHECK(vulkan_expr) \ + do { \ + VkResult res = vulkan_expr; \ + if (res != VK_SUCCESS) { \ + ERROR_EXIT("Vulkan error: %u (%s:%d)", res, __FILE__, __LINE__); \ + } \ + } while (0) + +// TODO: typedef struct vk_debugger {} vk_debugger; + +typedef struct vulkan_physical_device_requirements { + bool graphics; + bool present; + bool compute; + bool transfer; + str8 device_ext_names[VULKAN_PHYS_DEVICE_MAX_EXTENSION_NAMES]; + size_t device_ext_name_count; + bool sampler_anistropy; + bool discrete_gpu; +} vulkan_physical_device_requirements; + +#define VULKAN_MAX_DEFAULT 32 + +typedef struct vulkan_swapchain_support_info { + VkSurfaceCapabilitiesKHR capabilities; + VkSurfaceFormatKHR formats[VULKAN_MAX_DEFAULT]; + u32 format_count; + VkPresentModeKHR present_modes[VULKAN_MAX_DEFAULT]; + u32 mode_count; +} vulkan_swapchain_support_info; + +VKAPI_ATTR VkBool32 VKAPI_CALL vk_debug_callback( + VkDebugUtilsMessageSeverityFlagBitsEXT severity, VkDebugUtilsMessageTypeFlagsEXT flags, + const VkDebugUtilsMessengerCallbackDataEXT* callback_data, void* user_data); + +static void vulkan_device_query_swapchain_support(VkPhysicalDevice device, VkSurfaceKHR surface, + vulkan_swapchain_support_info* out_support_info) { + // TODO: add VK_CHECK to these calls! + + // Surface capabilities + vkGetPhysicalDeviceSurfaceCapabilitiesKHR(device, surface, &out_support_info->capabilities); + + // Surface formats + vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &out_support_info->format_count, + 0); // Get number of formats + if (out_support_info->format_count > 0) { + vkGetPhysicalDeviceSurfaceFormatsKHR(device, surface, &out_support_info->format_count, + out_support_info->formats); + } + + // Present Modes + vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &out_support_info->mode_count, + 0); // Get number of formats + if (out_support_info->mode_count > 0) { + vkGetPhysicalDeviceSurfacePresentModesKHR(device, surface, &out_support_info->mode_count, + out_support_info->present_modes); + } +} + +static VkSurfaceFormatKHR choose_swapchain_format( + vulkan_swapchain_support_info* swapchain_support) { + assert(swapchain_support->format_count > 0); + // find a format + for (u32 i = 0; i < swapchain_support->format_count; i++) { + VkSurfaceFormatKHR format = swapchain_support->formats[i]; + if (format.format == VK_FORMAT_B8G8R8A8_SRGB && + format.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) { + return format; + } + } + return swapchain_support->formats[0]; +} + +// static bool physical_device_meets_requirements( +// VkPhysicalDevice device, VkSurfaceKHR surface, const VkPhysicalDeviceProperties* properties, +// const VkPhysicalDeviceFeatures* features, +// const vulkan_physical_device_requirements* requirements, +// vulkan_physical_device_queue_family_info* out_queue_info, +// vulkan_swapchain_support_info* out_swapchain_support) { +// // TODO: pass in an arena + +// out_queue_info->graphics_family_index = -1; +// out_queue_info->present_family_index = -1; +// out_queue_info->compute_family_index = -1; +// out_queue_info->transfer_family_index = -1; + +// if (requirements->discrete_gpu) { +// if (properties->deviceType != VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) { +// TRACE("Device is not a physical GPU. Skipping."); +// return false; +// } +// } + +// u32 queue_family_count = 0; +// vkGetPhysicalDeviceQueueFamilyProperties(device, &queue_family_count, 0); +// VkQueueFamilyProperties queue_families[queue_family_count]; +// vkGetPhysicalDeviceQueueFamilyProperties(device, &queue_family_count, queue_families); + +// INFO("Graphics | Present | Compute | Transfer | Name"); +// u8 min_transfer_score = 255; +// for (u32 i = 0; i < queue_family_count; i++) { +// u8 current_transfer_score = 0; + +// // Graphics queue +// if (queue_families[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) { +// out_queue_info->graphics_family_index = i; +// current_transfer_score++; +// } + +// // Compute queue +// if (queue_families[i].queueFlags & VK_QUEUE_COMPUTE_BIT) { +// out_queue_info->compute_family_index = i; +// current_transfer_score++; +// } + +// // Transfer queue +// if (queue_families[i].queueFlags & VK_QUEUE_TRANSFER_BIT) { +// // always take the lowest score transfer index +// if (current_transfer_score <= min_transfer_score) { +// min_transfer_score = current_transfer_score; +// out_queue_info->transfer_family_index = i; +// } +// } + +// // Present Queue +// VkBool32 supports_present = VK_FALSE; +// vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &supports_present); +// if (supports_present) { +// out_queue_info->present_family_index = i; +// } +// } + +// INFO(" %d | %d | %d | %d | %s", +// out_queue_info->graphics_family_index != -1, out_queue_info->present_family_index != -1, +// out_queue_info->compute_family_index != -1, out_queue_info->transfer_family_index != -1, +// properties->deviceName); +// TRACE("Graphics Family queue index: %d", out_queue_info->graphics_family_index); +// TRACE("Present Family queue index: %d", out_queue_info->present_family_index); +// TRACE("Compute Family queue index: %d", out_queue_info->compute_family_index); +// TRACE("Transfer Family queue index: %d", out_queue_info->transfer_family_index); + +// if ((!requirements->graphics || +// (requirements->graphics && out_queue_info->graphics_family_index != -1))) { +// INFO("Physical device meets our requirements! Proceed."); + +// vulkan_device_query_swapchain_support( +// device, surface, out_swapchain_support + +// // TODO: error handling i.e. format count = 0 or present mode = 0 + +// ); +// return true; +// } + +// return false; +// } + +VKAPI_ATTR VkBool32 VKAPI_CALL vk_debug_callback( + VkDebugUtilsMessageSeverityFlagBitsEXT severity, VkDebugUtilsMessageTypeFlagsEXT flags, + const VkDebugUtilsMessengerCallbackDataEXT* callback_data, void* user_data) { + switch (severity) { + default: + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT: + ERROR("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT: + WARN("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT: + INFO("%s", callback_data->pMessage); + break; + case VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT: + TRACE("%s", callback_data->pMessage); + break; + } + return VK_FALSE; +}
\ No newline at end of file diff --git a/src/renderer/bind_group_layouts.h b/src/renderer/bind_group_layouts.h new file mode 100644 index 0000000..246d1ef --- /dev/null +++ b/src/renderer/bind_group_layouts.h @@ -0,0 +1,30 @@ +/** + * @file bind_group_layouts.h + * @author your name (you@domain.com) + * @brief Common bindgroups (descriptor set layouts) + * @version 0.1 + * @date 2024-04-28 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once +#include "defines.h" +#include "maths_types.h" + +// Three major sets + +// 1. Scene / Global +typedef struct bg_globals { + mat4 view; + mat4 projection; + f32 total_time; + f32 delta_time; +} bg_globals; + +// 2. Material (once per object) + +// 3. Per draw call +typedef struct bg_model { + mat4 model; +} bg_model; diff --git a/src/renderer/immediate.c b/src/renderer/immediate.c new file mode 100644 index 0000000..e76d102 --- /dev/null +++ b/src/renderer/immediate.c @@ -0,0 +1,18 @@ +#include "immediate.h" +#include "maths.h" +#include "primitives.h" +#include "ral_types.h" +#include "render.h" + +void imm_draw_sphere(vec3 pos, f32 radius, vec4 colour) { + // Create the vertices + geometry_data geometry = geo_create_uvsphere(radius, 16, 16); + geo_set_vertex_colours(&geometry, colour); + + // Upload to GPU + mat4 model = mat4_translation(pos); + + // Set pipeline + + // Draw +}
\ No newline at end of file diff --git a/src/renderer/immediate.h b/src/renderer/immediate.h new file mode 100644 index 0000000..b9d7c61 --- /dev/null +++ b/src/renderer/immediate.h @@ -0,0 +1,20 @@ +#pragma once + +#include "geometry.h" +#include "maths_types.h" + +// 3. SIMA (simplified immediate mode api) / render.h +// - dont need to worry about uploading mesh data +// - very useful for debugging +void imm_draw_cuboid(vec3 pos, quat rotation, f32x3 extents, vec4 colour); +void imm_draw_sphere(vec3 pos, f32 radius, vec4 colour); +void imm_draw_camera_frustum(); + +// static void imm_draw_model( +// const char* model_filepath); // tracks internally whether the model is loaded + +// static void imm_draw_model(const char* model_filepath) { +// check that model is loaded +// if not loaded, load model and upload to gpu - LRU cache for models +// else submit draw call +// }
\ No newline at end of file diff --git a/src/renderer/ral.c b/src/renderer/ral.c new file mode 100644 index 0000000..7d868be --- /dev/null +++ b/src/renderer/ral.c @@ -0,0 +1,42 @@ +#include "ral.h" + +size_t vertex_attrib_size(vertex_attrib_type attr) { + switch (attr) { + case ATTR_F32: + case ATTR_U32: + case ATTR_I32: + return 4; + case ATTR_F32x2: + case ATTR_U32x2: + case ATTR_I32x2: + return 8; + case ATTR_F32x3: + case ATTR_U32x3: + case ATTR_I32x3: + return 12; + case ATTR_F32x4: + case ATTR_U32x4: + case ATTR_I32x4: + return 16; + break; + } +} + +void vertex_desc_add(vertex_description* builder, const char* name, vertex_attrib_type type) { + u32 i = builder->attributes_count; + + size_t size = vertex_attrib_size(type); + builder->attributes[i] = type; + builder->stride += size; + builder->attr_names[i] = name; + + builder->attributes_count++; +} + +vertex_description static_3d_vertex_description() { + vertex_description builder = { .debug_label = "vertex" }; + vertex_desc_add(&builder, "position", ATTR_F32x3); + vertex_desc_add(&builder, "normal", ATTR_F32x3); + vertex_desc_add(&builder, "texCoords", ATTR_F32x2); + return builder; +} diff --git a/src/renderer/ral.h b/src/renderer/ral.h new file mode 100644 index 0000000..376898f --- /dev/null +++ b/src/renderer/ral.h @@ -0,0 +1,171 @@ +/** + * @file ral.h + * @author your name (you@domain.com) + * @brief Render Abstraction Layer + * @details API that a graphics backend *must* implement + * @version 0.1 + * @date 2024-03-31 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once + +#include "buf.h" +#include "defines.h" +#include "mem.h" +#include "ral_types.h" +#include "str.h" + +// Unrelated forward declares +struct GLFWwindow; + +// Forward declare structs - these must be defined in the backend implementation +typedef struct gpu_swapchain gpu_swapchain; +typedef struct gpu_device gpu_device; +typedef struct gpu_pipeline_layout gpu_pipeline_layout; +typedef struct gpu_pipeline gpu_pipeline; +typedef struct gpu_renderpass gpu_renderpass; +typedef struct gpu_cmd_encoder gpu_cmd_encoder; // Recording +typedef struct gpu_cmd_buffer gpu_cmd_buffer; // Ready for submission +typedef struct gpu_buffer gpu_buffer; +typedef struct gpu_texture gpu_texture; + +#define MAX_SHADER_DATA_LAYOUTS 5 +#define MAX_BUFFERS 256 +#define MAX_TEXTURES 256 + +TYPED_POOL(gpu_buffer, buffer); +TYPED_POOL(gpu_texture, texture); + +// --- Pools +typedef struct gpu_backend_pools { /* TODO: pools for each gpu structure */ +} gpu_backend_pools; + +struct resource_pools { + buffer_pool buffers; + texture_pool textures; +}; + +typedef enum pipeline_kind { + PIPELINE_GRAPHICS, + PIPELINE_COMPUTE, +} pipeline_kind; + +typedef struct shader_desc { + const char* debug_name; + str8 filepath; // where it came from + str8 code; // Either GLSL or SPIRV bytecode + bool is_spirv; +} shader_desc; + +struct graphics_pipeline_desc { + const char* debug_name; + vertex_description vertex_desc; + shader_desc vs; /** @brief Vertex shader stage */ + shader_desc fs; /** @brief Fragment shader stage */ + + // Roughly equivalent to a descriptor set layout each. each layout can have multiple bindings + // examples: + // - uniform buffer reprensenting view projection matrix + // - texture for shadow map + shader_data data_layouts[MAX_SHADER_DATA_LAYOUTS]; + u32 data_layouts_count; + + // gpu_pipeline_layout* layout; + gpu_renderpass* renderpass; + + bool wireframe; + bool depth_test; +}; + +typedef struct gpu_renderpass_desc { /* TODO */ +} gpu_renderpass_desc; + +// --- Lifecycle functions +bool gpu_backend_init(const char* window_name, struct GLFWwindow* window); +void gpu_backend_shutdown(); +void resource_pools_init(arena* a, struct resource_pools* res_pools); + +bool gpu_device_create(gpu_device* out_device); +void gpu_device_destroy(); + +// --- Render Pipeline +gpu_pipeline* gpu_graphics_pipeline_create(struct graphics_pipeline_desc description); +void gpu_pipeline_destroy(gpu_pipeline* pipeline); + +// --- Renderpass +gpu_renderpass* gpu_renderpass_create(const gpu_renderpass_desc* description); +void gpu_renderpass_destroy(gpu_renderpass* pass); + +// --- Swapchain +bool gpu_swapchain_create(gpu_swapchain* out_swapchain); +void gpu_swapchain_destroy(gpu_swapchain* swapchain); + +// --- Command buffer +gpu_cmd_encoder gpu_cmd_encoder_create(); +void gpu_cmd_encoder_destroy(gpu_cmd_encoder* encoder); +void gpu_cmd_encoder_begin(gpu_cmd_encoder encoder); +void gpu_cmd_encoder_begin_render(gpu_cmd_encoder* encoder, gpu_renderpass* renderpass); +void gpu_cmd_encoder_end_render(gpu_cmd_encoder* encoder); +void gpu_cmd_encoder_begin_compute(); +gpu_cmd_encoder* gpu_get_default_cmd_encoder(); + +// --- Data copy commands +/** @brief Copy data from one buffer to another */ +void encode_buffer_copy(gpu_cmd_encoder* encoder, buffer_handle src, u64 src_offset, + buffer_handle dst, u64 dst_offset, u64 copy_size); +/** @brief Upload CPU-side data as array of bytes to a GPU buffer */ +void buffer_upload_bytes(buffer_handle gpu_buf, bytebuffer cpu_buf, u64 offset, u64 size); + +/** @brief Copy data from buffer to buffer using a one time submit command buffer and a wait */ +void copy_buffer_to_buffer_oneshot(buffer_handle src, u64 src_offset, buffer_handle dst, + u64 dst_offset, u64 copy_size); +/** @brief Copy data from buffer to an image using a one time submit command buffer */ +void copy_buffer_to_image_oneshot(buffer_handle src, texture_handle dst); + +// --- Render commands +void encode_bind_pipeline(gpu_cmd_encoder* encoder, pipeline_kind kind, gpu_pipeline* pipeline); +void encode_bind_shader_data(gpu_cmd_encoder* encoder, u32 group, shader_data* data); +void encode_set_default_settings(gpu_cmd_encoder* encoder); +void encode_set_vertex_buffer(gpu_cmd_encoder* encoder, buffer_handle buf); +void encode_set_index_buffer(gpu_cmd_encoder* encoder, buffer_handle buf); +void encode_set_bind_group(); // TODO +void encode_draw(gpu_cmd_encoder* encoder); +void encode_draw_indexed(gpu_cmd_encoder* encoder, u64 index_count); +void encode_clear_buffer(gpu_cmd_encoder* encoder, buffer_handle buf); + +/** @brief Finish recording and return a command buffer that can be submitted to a queue */ +gpu_cmd_buffer gpu_cmd_encoder_finish(gpu_cmd_encoder* encoder); + +void gpu_queue_submit(gpu_cmd_buffer* buffer); + +// --- Buffers +buffer_handle gpu_buffer_create(u64 size, gpu_buffer_type buf_type, gpu_buffer_flags flags, + const void* data); +void gpu_buffer_destroy(buffer_handle buffer); +void gpu_buffer_upload(const void* data); + +// Textures +/** @brief Create a new GPU texture resource. + * @param create_view creates a texture view (with same dimensions) at the same time + * @param data if not NULL then the data stored at the pointer will be uploaded to the GPU texture + * @note automatically creates a sampler for you */ +texture_handle gpu_texture_create(texture_desc desc, bool create_view, const void* data); +void gpu_texture_destroy(texture_handle); +void gpu_texture_upload(texture_handle texture, const void* data); + +// --- Vertex formats +bytebuffer vertices_as_bytebuffer(arena* a, vertex_format format, vertex_darray* vertices); + +void vertex_desc_add(vertex_description* builder, const char* name, vertex_attrib_type type); + +// --- TEMP +bool gpu_backend_begin_frame(); +void gpu_backend_end_frame(); +void gpu_temp_draw(size_t n_verts); + +// TODO: --- Compute + +// --- Helpers +vertex_description static_3d_vertex_description(); diff --git a/src/renderer/ral_types.h b/src/renderer/ral_types.h new file mode 100644 index 0000000..62a2f1d --- /dev/null +++ b/src/renderer/ral_types.h @@ -0,0 +1,255 @@ +/** + * @file ral_types.h + * @author your name (you@domain.com) + * @brief Struct and enum definitions for RAL + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once + +#include "darray.h" +#include "defines.h" +#include "maths_types.h" + +#define MAX_VERTEX_ATTRIBUTES 16 + +/* #ifndef RENDERER_TYPED_HANDLES */ +CORE_DEFINE_HANDLE(buffer_handle); +CORE_DEFINE_HANDLE(texture_handle); +CORE_DEFINE_HANDLE(sampler_handle); +CORE_DEFINE_HANDLE(shader_handle); +CORE_DEFINE_HANDLE(model_handle); +#define ABSENT_MODEL_HANDLE 999999999 + +/* #define RENDERER_TYPED_HANDLES */ +/* #endif */ + +/* typedef struct gpu_buffer { */ +/* u32 a; */ +/* } gpu_buffer; */ + +/* #ifndef RAL_TYPED_POOLS */ +/* #define RAL_TYPED_POOLS */ +/* #endif */ + +// gpu types +typedef enum gpu_primitive_topology { + CEL_PRIMITIVE_TOPOLOGY_POINT, + CEL_PRIMITIVE_TOPOLOGY_LINE, + CEL_PRIMITIVE_TOPOLOGY_LINE_STRIP, + CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, + CEL_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP, + CEL_PRIMITIVE_TOPOLOGY_COUNT +} cel_primitive_topology; + +typedef enum gpu_texture_type { + CEL_TEXTURE_TYPE_2D, + CEL_TEXTURE_TYPE_3D, + CEL_TEXTURE_TYPE_2D_ARRAY, + CEL_TEXTURE_TYPE_CUBE_MAP, + CEL_TEXTURE_TYPE_COUNT +} gpu_texture_type; + +typedef enum gpu_texture_format { + CEL_TEXTURE_FORMAT_8_8_8_8_RGBA_UNORM, + CEL_TEXTURE_FORMAT_DEPTH_DEFAULT, + CEL_TEXTURE_FORMAT_COUNT +} gpu_texture_format; + +/** @brief Texture Description - used by texture creation functions */ +typedef struct texture_desc { + gpu_texture_type tex_type; + gpu_texture_format format; + u32x2 extents; +} texture_desc; + +typedef enum gpu_buffer_type { + CEL_BUFFER_DEFAULT, // on Vulkan this would be a storage buffer? + CEL_BUFFER_VERTEX, + CEL_BUFFER_INDEX, + CEL_BUFFER_UNIFORM, + CEL_BUFFER_COUNT +} gpu_buffer_type; + +typedef enum gpu_buffer_flag { + CEL_BUFFER_FLAG_CPU = 1 << 0, + CEL_BUFFER_FLAG_GPU = 1 << 1, + CEL_BUFFER_FLAG_STORAGE = 1 << 2, + CEL_BUFFER_FLAG_COUNT +} gpu_buffer_flag; +typedef u32 gpu_buffer_flags; + +typedef enum vertex_format { + VERTEX_STATIC_3D, + VERTEX_SPRITE, + VERTEX_SKINNED, + VERTEX_COLOURED_STATIC_3D, + VERTEX_RAW_POS_COLOUR, + VERTEX_COUNT +} vertex_format; + +typedef union vertex { + struct { + vec3 position; + vec3 normal; + vec2 tex_coords; + } static_3d; /** @brief standard vertex format for static geometry in 3D */ + + struct { + vec2 position; + vec4 colour; + vec2 tex_coords; + } sprite; /** @brief vertex format for 2D sprites or quads */ + + struct { + vec3 position; + vec4 colour; + vec2 tex_coords; + vec3 normal; + vec4i bone_ids; // Integer vector for bone IDs + vec4 bone_weights; // Weight of each bone's influence + } skinned_3d; /** @brief vertex format for skeletal (animated) geometry in 3D */ + + struct { + vec3 position; + vec2 tex_coords; + vec3 normal; + vec4 colour; + } coloured_static_3d; /** @brief vertex format used for debugging */ + + struct { + vec2 position; + vec3 colour; + } raw_pos_colour; +} vertex; + +#ifndef TYPED_VERTEX_ARRAY +KITC_DECL_TYPED_ARRAY(vertex) +KITC_DECL_TYPED_ARRAY(u32) +#define TYPED_VERTEX_ARRAY +#endif + +// TEMP +typedef struct custom_vertex { + vec2 pos; + vec3 color; +} custom_vertex; + +// Vertex attributes +/// @strip_prefix(ATTR_) +typedef enum vertex_attrib_type { + ATTR_F32, + ATTR_F32x2, + ATTR_F32x3, + ATTR_F32x4, + ATTR_U32, + ATTR_U32x2, + ATTR_U32x3, + ATTR_U32x4, + ATTR_I32, + ATTR_I32x2, + ATTR_I32x3, + ATTR_I32x4, +} vertex_attrib_type; + +typedef struct vertex_description { + char* debug_label; + const char* attr_names[MAX_VERTEX_ATTRIBUTES]; + vertex_attrib_type attributes[MAX_VERTEX_ATTRIBUTES]; + u32 attributes_count; + size_t stride; + bool use_full_vertex_size; +} vertex_description; + +// --- Shaders & Bindings + +typedef enum shader_visibility { + VISIBILITY_VERTEX = 1 << 0, + VISIBILITY_FRAGMENT = 1 << 1, + VISIBILITY_COMPUTE = 1 << 2, +} shader_visibility; + +/** @brief Describes the kind of binding a `shader_binding` is for. This changes how we create + * backing data for it. */ +typedef enum shader_binding_type { + /** + * @brief Binds a buffer to a shader + * @note Vulkan: Becomes a Storage Buffer + */ + SHADER_BINDING_BUFFER, + SHADER_BINDING_BUFFER_ARRAY, + SHADER_BINDING_TEXTURE, + SHADER_BINDING_TEXTURE_ARRAY, + SHADER_BINDING_SAMPLER, + /** + * @brief Binds raw data to a shader + * @note Vulkan: Becomes a Uniform Buffer + */ + SHADER_BINDING_BYTES, + // TODO: Acceleration Structure + SHADER_BINDING_COUNT +} shader_binding_type; + +// pub trait ShaderBindable: Clone + Copy { +// fn bind_to(&self, context: &mut PipelineContext, index: u32); +// } + +typedef struct shader_binding { + const char* label; + shader_binding_type type; + shader_visibility vis; + bool stores_data; /** @brief if this is true then the shader binding has references to live data, + if false then its just being used to describe a layout and .data + should be zeroed */ + union { + struct { + buffer_handle handle; + } buffer; + struct { + void* data; + size_t size; + } bytes; + struct { + texture_handle handle; + } texture; + } data; /** @brief can store any kind of data that we can bind to a shader / descriptor set */ +} shader_binding; + +#define MAX_LAYOUT_BINDINGS 8 + +/** @brief A list of bindings that describe what data a shader / pipeline expects + @note This roughly correlates to a descriptor set layout in Vulkan +*/ +typedef struct shader_data_layout { + char* name; + shader_binding bindings[MAX_LAYOUT_BINDINGS]; + u32 bindings_count; +} shader_data_layout; + +typedef struct shader_data { + shader_data_layout (*shader_data_get_layout)(void* data); + void* data; +} shader_data; + +/* + Usage: + 1. When we create the pipeline, we must call a function that return a layout without .data + fields + 2. When binding +*/ + +typedef enum gpu_cull_mode { CULL_BACK_FACE, CULL_FRONT_FACE, CULL_COUNT } gpu_cull_mode; + +// ? How to tie together materials and shaders + +// Three registers +// 1. low level graphics api calls "ral" +// 2. higher level render calls +// 3. simplified immediate mode API + +// 3 - you don't need to know how the renderer works at all +// 2 - you need to know how the overall renderer is designed +// 1 - you need to understand graphics API specifics diff --git a/src/renderer/render.c b/src/renderer/render.c index ac6b80a..5723c9e 100644 --- a/src/renderer/render.c +++ b/src/renderer/render.c @@ -1,47 +1,40 @@ -#include <stdlib.h> -#include "mem.h" -#include "transform_hierarchy.h" +#include <glfw3.h> +#include "maths_types.h" #define STB_IMAGE_IMPLEMENTATION #include <stb_image.h> -#define STB_TRUETYPE_IMPLEMENTATION -#include <stb_truetype.h> - -#include "render.h" -#include "render_types.h" - -#include <glad/glad.h> -#include <glfw3.h> - -#include "defines.h" +#include "camera.h" +#include "file.h" #include "log.h" -#include "maths.h" -#include "render_backend.h" - -// FIXME: get rid of these and store dynamic screen realestate -// in renderer -#define SCR_WIDTH 1080 -#define SCR_HEIGHT 800 +#include "mem.h" +#include "ral.h" +#include "ral_types.h" +#include "render.h" -material DEFAULT_MATERIAL = { 0 }; +/** @brief Creates the pipelines built into Celeritas such as rendering static opaque geometry, + debug visualisations, immediate mode UI, etc */ +void default_pipelines_init(renderer* ren); bool renderer_init(renderer* ren) { - INFO("Renderer init"); + // INFO("Renderer init"); // NOTE: all platforms use GLFW at the moment but thats subject to change glfwInit(); - DEBUG("init graphics api (OpenGL) backend"); +#if defined(CEL_REND_BACKEND_OPENGL) glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1); glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); +#elif defined(CEL_REND_BACKEND_VULKAN) + glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); +#endif // glfw window creation GLFWwindow* window = glfwCreateWindow(ren->config.scr_width, ren->config.scr_height, ren->config.window_name, NULL, NULL); if (window == NULL) { - printf("Failed to create GLFW window\n"); + // ERROR("Failed to create GLFW window\n"); glfwTerminate(); return false; } @@ -49,205 +42,174 @@ bool renderer_init(renderer* ren) { glfwMakeContextCurrent(ren->window); - if (!gfx_backend_init(ren)) { + DEBUG("Start gpu backend init"); + + if (!gpu_backend_init("Celeritas Engine - Vulkan", window)) { FATAL("Couldnt load graphics api backend"); return false; } + gpu_device_create(&ren->device); // TODO: handle errors + gpu_swapchain_create(&ren->swapchain); - ren->blinn_phong = - shader_create_separate("assets/shaders/blinn_phong.vert", "assets/shaders/blinn_phong.frag"); + DEBUG("Initialise GPU resource pools"); + arena pool_arena = arena_create(malloc(1024 * 1024), 1024 * 1024); + ren->resource_pools = arena_alloc(&pool_arena, sizeof(struct resource_pools)); + resource_pools_init(&pool_arena, ren->resource_pools); - default_material_init(); + // ren->blinn_phong = + // shader_create_separate("assets/shaders/blinn_phong.vert", + // "assets/shaders/blinn_phong.frag"); - return true; -} + // ren->skinned = + // shader_create_separate("assets/shaders/skinned.vert", "assets/shaders/blinn_phong.frag"); -void render_frame_begin(renderer* ren) { - vec3 color = ren->config.clear_colour; - clear_screen(color); -} -void render_frame_end(renderer* ren) { - // present frame - glfwSwapBuffers(ren->window); - glfwPollEvents(); -} + // default_material_init(); -void default_material_init() { - INFO("Load default material") - DEFAULT_MATERIAL.ambient_colour = (vec3){ 0.5, 0.5, 0.5 }; - DEFAULT_MATERIAL.diffuse = (vec3){ 0.8, 0.8, 0.8 }; - DEFAULT_MATERIAL.specular = (vec3){ 1.0, 1.0, 1.0 }; - DEFAULT_MATERIAL.diffuse_texture = texture_data_load("assets/textures/white1x1.png", false); - DEFAULT_MATERIAL.specular_texture = texture_data_load("assets/textures/black1x1.png", false); - DEFAULT_MATERIAL.spec_exponent = 32.0; - strcpy(DEFAULT_MATERIAL.name, "Default"); - texture_data_upload(&DEFAULT_MATERIAL.diffuse_texture); - texture_data_upload(&DEFAULT_MATERIAL.specular_texture); -} + // Create default rendering pipeline + /* default_pipelines_init(ren); */ -typedef struct draw_ctx { - model_darray* models; - renderer* ren; - camera* cam; - scene* scene; -} draw_ctx; -bool draw_scene_node(transform_node* node, void* ctx_data) { - if (!node || !node->parent) return true; - draw_ctx* ctx = ctx_data; - model* m = &ctx->models->data[node->model.raw]; - draw_model(ctx->ren, ctx->cam, m, &node->world_matrix_tf, ctx->scene); return true; } - -void draw_scene(arena* frame, model_darray* models, renderer* ren, camera* camera, - transform_hierarchy* tfh, scene* scene) { - draw_ctx* ctx = arena_alloc(frame, sizeof(draw_ctx)); - ctx->models = models; - ctx->ren = ren; - ctx->cam = camera; - ctx->scene = scene; - transform_hierarchy_dfs(transform_hierarchy_root_node(tfh), draw_scene_node, true, ctx); +void renderer_shutdown(renderer* ren) { + gpu_swapchain_destroy(&ren->swapchain); + gpu_pipeline_destroy(&ren->static_opaque_pipeline); + gpu_backend_shutdown(); } -void draw_model(renderer* ren, camera* camera, model* model, mat4* model_tf, scene* scene) { - // TRACE("Drawing model: %s", model->name); - mat4 view; - mat4 proj; - camera_view_projection(camera, SCR_HEIGHT, SCR_WIDTH, &view, &proj); +void default_pipelines_init(renderer* ren) { + // Static opaque geometry + arena scratch = arena_create(malloc(1024 * 1024), 1024 * 1024); + + gpu_renderpass_desc pass_description = {}; + gpu_renderpass* renderpass = gpu_renderpass_create(&pass_description); + + ren->default_renderpass = *renderpass; + + printf("Load shaders\n"); + str8 vert_path = str8lit("build/linux/x86_64/debug/triangle.vert.spv"); + str8 frag_path = str8lit("build/linux/x86_64/debug/triangle.frag.spv"); + /* str8 vert_path = + * str8lit("/home/void/code/celeritas-engine/celeritas-core/build/linux/x86_64/debug/triangle.vert.spv"); + */ + /* str8 frag_path = + * str8lit("/home/void/code/celeritas-engine/celeritas-core/build/linux/x86_64/debug/triangle.frag.spv"); + */ + str8_opt vertex_shader = str8_from_file(&scratch, vert_path); + str8_opt fragment_shader = str8_from_file(&scratch, frag_path); + if (!vertex_shader.has_value || !fragment_shader.has_value) { + ERROR_EXIT("Failed to load shaders from disk") + } - set_shader(ren->blinn_phong); + vertex_description vertex_input; + vertex_input.debug_label = "Standard Static 3D Vertex Format"; + vertex_desc_add(&vertex_input, "inPosition", ATTR_F32x3); + vertex_desc_add(&vertex_input, "inNormal", ATTR_F32x3); + vertex_desc_add(&vertex_input, "inTexCoords", ATTR_F32x2); + + struct graphics_pipeline_desc pipeline_description = { + .debug_name = "Basic Pipeline", + .vertex_desc = vertex_input, + // .data_layouts + // .data_layouts_count + .vs = { .debug_name = "Triangle Vertex Shader", + .filepath = vert_path, + .code = vertex_shader.contents, + .is_spirv = true }, + .fs = { .debug_name = "Triangle Fragment Shader", + .filepath = frag_path, + .code = fragment_shader.contents, + .is_spirv = true }, + .renderpass = renderpass, + .wireframe = false, + .depth_test = false + }; + gpu_pipeline* gfx_pipeline = gpu_graphics_pipeline_create(pipeline_description); + ren->static_opaque_pipeline = *gfx_pipeline; +} - // set camera uniform - uniform_vec3f(ren->blinn_phong.program_id, "viewPos", &camera->position); - // set light uniforms - dir_light_upload_uniforms(ren->blinn_phong, &scene->dir_light); - for (int i = 0; i < scene->n_point_lights; i++) { - point_light_upload_uniforms(ren->blinn_phong, &scene->point_lights[i], '0' + i); +void render_frame_begin(renderer* ren) { + ren->frame_aborted = false; + if (!gpu_backend_begin_frame()) { + ren->frame_aborted = true; + return; + } + gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder(); + // begin recording + gpu_cmd_encoder_begin(*enc); + gpu_cmd_encoder_begin_render(enc, &ren->default_renderpass); + encode_bind_pipeline(enc, PIPELINE_GRAPHICS, &ren->static_opaque_pipeline); + encode_set_default_settings(enc); +} +void render_frame_end(renderer* ren) { + if (ren->frame_aborted) { + return; } + // gpu_temp_draw(3); + gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder(); + gpu_cmd_encoder_end_render(enc); + gpu_cmd_buffer buf = gpu_cmd_encoder_finish(enc); + gpu_queue_submit(&buf); + gpu_backend_end_frame(); +} +void render_frame_draw(renderer* ren) {} - for (size_t i = 0; i < mesh_darray_len(model->meshes); i++) { - mesh* m = &model->meshes->data[i]; - if (vertex_darray_len(m->vertices) == 0) { - continue; - } - // TRACE("Drawing mesh %d", i); - material* mat = &model->materials->data[m->material_index]; - draw_mesh(ren, m, model_tf, mat, &view, &proj); +void draw_mesh(mesh* mesh, mat4* model) { // , mat4* view, mat4* proj) { + gpu_cmd_encoder* enc = gpu_get_default_cmd_encoder(); + encode_set_vertex_buffer(enc, mesh->vertex_buffer); + if (mesh->has_indices) { + encode_set_index_buffer(enc, mesh->index_buffer); } + // Assume this has already been done + /* encode_bind_shader_data(enc, 0, &mvp_uniforms_data); */ + encode_draw_indexed(enc, mesh->index_count); } -void draw_mesh(renderer* ren, mesh* mesh, mat4* model_tf, material* mat, mat4* view, mat4* proj) { - shader lighting_shader = ren->blinn_phong; +void gfx_backend_draw_frame(renderer* ren, camera* camera, mat4 model, texture* tex) {} - // bind buffer - bind_mesh_vertex_buffer(ren->backend_state, mesh); +void geo_set_vertex_colours(geometry_data* geo, vec4 colour) {} - // bind textures - bind_texture(lighting_shader, &mat->diffuse_texture, 0); // bind to slot 0 - bind_texture(lighting_shader, &mat->specular_texture, 1); // bind to slot 1 - uniform_f32(lighting_shader.program_id, "material.shininess", 32.); +// --- NEW - // upload model transform - // mat4 trans = mat4_translation(tf.position); - // mat4 rot = mat4_rotation(tf.rotation); - // mat4 scale = mat4_scale(tf.scale); - // mat4 model_tf = mat4_mult(trans, mat4_mult(rot, scale)); +mesh mesh_create(geometry_data* geometry, bool free_on_upload) { + mesh m = { 0 }; - uniform_mat4f(lighting_shader.program_id, "model", model_tf); - // upload view & projection matrices - uniform_mat4f(lighting_shader.program_id, "view", view); - uniform_mat4f(lighting_shader.program_id, "projection", proj); + // Create and upload vertex buffer + size_t vert_bytes = geometry->vertices->len * sizeof(vertex); + INFO("Creating vertex buffer with size %d (%d x %d)", vert_bytes, geometry->vertices->len, + sizeof(vertex)); + m.vertex_buffer = gpu_buffer_create(vert_bytes, CEL_BUFFER_VERTEX, CEL_BUFFER_FLAG_GPU, + geometry->vertices->data); - // draw triangles - u32 num_vertices = vertex_darray_len(mesh->vertices); - draw_primitives(CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, 0, num_vertices); -} + // Create and upload index buffer + size_t index_bytes = geometry->indices.len * sizeof(u32); + INFO("Creating index buffer with size %d (len: %d)", index_bytes, geometry->indices.len); + m.index_buffer = + gpu_buffer_create(index_bytes, CEL_BUFFER_INDEX, CEL_BUFFER_FLAG_GPU, geometry->indices.data); -void model_upload_meshes(renderer* ren, model* model) { - INFO("Upload mesh vertex data to GPU for model %s", model->name); - - size_t num_meshes = mesh_darray_len(model->meshes); - u32 VBOs[num_meshes]; - u32 VAOs[num_meshes]; - glGenBuffers(num_meshes, VBOs); - glGenVertexArrays(num_meshes, VAOs); - - u64 total_verts = 0; - - TRACE("num meshes %d", num_meshes); - - // upload each mesh to the GPU - for (int mesh_i = 0; mesh_i < num_meshes; mesh_i++) { - model->meshes->data[mesh_i].vao = VAOs[mesh_i]; - model->meshes->data[mesh_i].vbo = VBOs[mesh_i]; - // 3. bind buffers - glBindBuffer(GL_ARRAY_BUFFER, VBOs[mesh_i]); - - size_t num_vertices = vertex_darray_len(model->meshes->data[mesh_i].vertices); - // TRACE("Uploading vertex array data: %d verts", num_vertices); - total_verts += num_vertices; - - // TODO: convert this garbage into a function - f32 verts[num_vertices * 8]; - // for each face - for (int i = 0; i < (num_vertices / 3); i++) { - // for each vert in face - for (int j = 0; j < 3; j++) { - size_t stride = (i * 24) + j * 8; - // printf("i: %d, stride: %ld, loc %d\n", i, stride, i * 3 + j); - vertex vert = model->meshes->data[mesh_i].vertices->data[i]; - // printf("pos %f %f %f\n", vert.position.x, vert.position.y, vert.position.z); - // printf("norm %f %f %f\n", vert.normal.x, vert.normal.y, vert.normal.z); - // printf("tex %f %f\n", vert.uv.x, vert.uv.y); - verts[stride + 0] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].position.x; - verts[stride + 1] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].position.y; - verts[stride + 2] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].position.z; - verts[stride + 3] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].normal.x; - verts[stride + 4] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].normal.y; - verts[stride + 5] = - ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].normal.z; - verts[stride + 6] = ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].uv.x; - verts[stride + 7] = ((vertex*)model->meshes->data[mesh_i].vertices->data)[i * 3 + j].uv.y; - } - } - - // 4. upload data - glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW); - - // 5. cont. set mesh vertex layout - glBindVertexArray(model->meshes->data[mesh_i].vao); - // position attribute - glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)0); - glEnableVertexAttribArray(0); - // normal vector attribute - glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(3 * sizeof(float))); - glEnableVertexAttribArray(1); - // tex coords - glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8 * sizeof(float), (void*)(6 * sizeof(float))); - glEnableVertexAttribArray(2); + m.is_uploaded = true; + m.has_indices = geometry->has_indices; + m.index_count = geometry->indices.len; + m.vertices = geometry; + if (free_on_upload) { + geo_free_data(geometry); } - INFO("Uploaded %d submeshes with a total of %d vertices\n", num_meshes, total_verts); + // TODO: materials? - // 6. reset buffer - glBindBuffer(GL_ARRAY_BUFFER, 0); + return m; } -texture texture_data_load(const char* path, bool invert_y) { +// --- Textures + +texture_data texture_data_load(const char* path, bool invert_y) { TRACE("Load texture %s", path); // load the file data - // texture loading int width, height, num_channels; stbi_set_flip_vertically_on_load(invert_y); #pragma GCC diagnostic ignored "-Wpointer-sign" - char* data = stbi_load(path, &width, &height, &num_channels, 0); + char* data = stbi_load(path, &width, &height, &num_channels, STBI_rgb_alpha); if (data) { DEBUG("loaded texture: %s", path); } else { @@ -260,66 +222,18 @@ texture texture_data_load(const char* path, bool invert_y) { } else { channel_type = GL_RGB; } + texture_desc desc = { .extents = { width, height }, + .format = CEL_TEXTURE_FORMAT_8_8_8_8_RGBA_UNORM, + .tex_type = CEL_TEXTURE_TYPE_2D }; - return (texture){ .texture_id = 0, - .width = width, - .height = height, - .channel_count = num_channels, - .channel_type = channel_type, - .name = "TODO: Texture names", - .image_data = data }; + return (texture_data){ .description = desc, .image_data = data }; } -void texture_data_upload(texture* tex) { - printf("Texture name %s\n", tex->name); - TRACE("Upload texture data"); - u32 texture_id; - glGenTextures(1, &texture_id); - glBindTexture(GL_TEXTURE_2D, texture_id); - tex->texture_id = texture_id; - - // set the texture wrapping parameters - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, - GL_REPEAT); // set texture wrapping to GL_REPEAT (default wrapping method) - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); - // set texture filtering parameters - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, tex->width, tex->height, 0, tex->channel_type, - GL_UNSIGNED_BYTE, tex->image_data); - glGenerateMipmap(GL_TEXTURE_2D); - DEBUG("Freeing texture image data after uploading to GPU"); - // stbi_image_free(tex->image_data); // data is on gpu now so we dont need it around -} - -void dir_light_upload_uniforms(shader shader, directional_light* light) { - uniform_vec3f(shader.program_id, "dirLight.direction", &light->direction); - uniform_vec3f(shader.program_id, "dirLight.ambient", &light->ambient); - uniform_vec3f(shader.program_id, "dirLight.diffuse", &light->diffuse); - uniform_vec3f(shader.program_id, "dirLight.specular", &light->specular); +texture_handle texture_data_upload(texture_data data, bool free_on_upload) { + texture_handle handle = gpu_texture_create(data.description, true, data.image_data); + if (free_on_upload) { + TRACE("Freed stb_image data"); + stbi_image_free(data.image_data); + } + return handle; } - -void point_light_upload_uniforms(shader shader, point_light* light, char index) { - char position_str[] = "pointLights[x].position"; - position_str[12] = (char)index; - char ambient_str[] = "pointLights[x].ambient"; - ambient_str[12] = (char)index; - char diffuse_str[] = "pointLights[x].diffuse"; - diffuse_str[12] = (char)index; - char specular_str[] = "pointLights[x].specular"; - specular_str[12] = (char)index; - char constant_str[] = "pointLights[x].constant"; - constant_str[12] = (char)index; - char linear_str[] = "pointLights[x].linear"; - linear_str[12] = (char)index; - char quadratic_str[] = "pointLights[x].quadratic"; - quadratic_str[12] = (char)index; - uniform_vec3f(shader.program_id, position_str, &light->position); - uniform_vec3f(shader.program_id, ambient_str, &light->ambient); - uniform_vec3f(shader.program_id, diffuse_str, &light->diffuse); - uniform_vec3f(shader.program_id, specular_str, &light->specular); - uniform_f32(shader.program_id, constant_str, light->constant); - uniform_f32(shader.program_id, linear_str, light->linear); - uniform_f32(shader.program_id, quadratic_str, light->quadratic); -}
\ No newline at end of file diff --git a/src/renderer/render.h b/src/renderer/render.h index 1a35488..c193ff9 100644 --- a/src/renderer/render.h +++ b/src/renderer/render.h @@ -1,39 +1,73 @@ +/** + * @file render.h + * @author your name (you@domain.com) + * @brief Renderer frontend + * @version 0.1 + * @date 2024-03-21 + * + * @copyright Copyright (c) 2024 + * + */ #pragma once -#include "camera.h" -#include "loaders.h" +#include "ral_types.h" #include "render_types.h" -#include "transform_hierarchy.h" -// --- Lifecycle -/** @brief initialise the render system frontend */ bool renderer_init(renderer* ren); -/** @brief shutdown the render system frontend */ void renderer_shutdown(renderer* ren); -// --- Frame - void render_frame_begin(renderer* ren); +void render_frame_update_globals(renderer* ren); void render_frame_end(renderer* ren); +void render_frame_draw(renderer* ren); + +// ! TEMP +typedef struct camera camera; +void gfx_backend_draw_frame(renderer* ren, camera* camera, mat4 model, texture* tex); + +typedef struct render_ctx { + mat4 view; + mat4 projection; +} render_ctx; + +// frontend -- these can be called from say a loop in an example, or via FFI +texture_handle texture_create(const char* debug_name, texture_desc description, const u8* data); + +// Frontend Resources +texture_data texture_data_load(const char* path, bool invert_y); + +/** + * @brief + * + * @param data + * @param free_on_upload frees the CPU-side pixel data stored in `data` + * @return texture_handle + */ +texture_handle texture_data_upload(texture_data data, bool free_on_upload); + +buffer_handle buffer_create(const char* debug_name, u64 size); +bool buffer_destroy(buffer_handle buffer); +sampler_handle sampler_create(); + +void shader_hot_reload(const char* filepath); + +// models and meshes are implemented **in terms of the above** + +/** + * @brief Creates buffers and returns a struct that holds handles to our resources + * + * @param geometry + * @param free_on_upload frees the CPU-side vertex/index data stored in `geometry` when we + successfully upload that data to the GPU-side buffer + * @return mesh + */ +mesh mesh_create(geometry_data* geometry, bool free_on_upload); + +void draw_mesh(mesh* mesh, mat4* model); //, mat4* view, mat4* proj); // TODO: material + +model_handle model_load(const char* debug_name, const char* filepath); + +void geo_free_data(geometry_data* geo); +void geo_set_vertex_colours(geometry_data* geo, vec4 colour); -// --- models meshes -void model_upload_meshes(renderer* ren, model* model); -void draw_model(renderer* ren, camera* camera, model* model, mat4* tf, scene* scene); -void draw_mesh(renderer* ren, mesh* mesh, mat4* tf, material* mat, mat4* view, mat4* proj); -void draw_scene(arena* frame, model_darray* models, renderer* ren, camera* camera, - transform_hierarchy* tfh, scene* scene); - -// --- -texture texture_data_load(const char* path, bool invert_y); // #frontend -void texture_data_upload(texture* tex); // #backend - -// --- Uniforms - -/** @brief upload a vec3 of f32 to a uniform */ -void uniform_vec3f(u32 program_id, const char* uniform_name, vec3* value); -/** @brief upload a single f32 to a uniform */ -void uniform_f32(u32 program_id, const char* uniform_name, f32 value); -/** @brief upload a integer to a uniform */ -void uniform_i32(u32 program_id, const char* uniform_name, i32 value); -/** @brief upload a mat4 of f32 to a uniform */ -void uniform_mat4f(u32 program_id, const char* uniform_name, mat4* value);
\ No newline at end of file +vertex_description static_3d_vertex_description(); diff --git a/src/renderer/render_backend.h b/src/renderer/render_backend.h deleted file mode 100644 index 7e1c16c..0000000 --- a/src/renderer/render_backend.h +++ /dev/null @@ -1,22 +0,0 @@ -/** - * @brief - */ -#pragma once - -#include "maths_types.h" -#include "render_types.h" - -/// --- Lifecycle -bool gfx_backend_init(renderer* ren); -void gfx_backend_shutdown(renderer* ren); - -void clear_screen(vec3 colour); - -void bind_texture(shader s, texture* tex, u32 slot); -void bind_mesh_vertex_buffer(void* backend, mesh* mesh); -void draw_primitives(cel_primitive_topology primitive, u32 start_index, u32 count); - -shader shader_create_separate(const char* vert_shader, const char* frag_shader); -void set_shader(shader s); - -// --- Uniforms diff --git a/src/renderer/render_types.h b/src/renderer/render_types.h index aed18db..cc5fd93 100644 --- a/src/renderer/render_types.h +++ b/src/renderer/render_types.h @@ -1,32 +1,23 @@ /** * @file render_types.h - * @author Omniscient - * @brief Type definitions for the majority of data required by the renderer system - * @date 2024-02-24 + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 * */ #pragma once -#include "darray.h" -#include "maths_types.h" -#include "str.h" - -struct GLFWwindow; - -#define MAX_MATERIAL_NAME_LEN 256 -#define MAX_TEXTURE_NAME_LEN 256 - -#ifndef RESOURCE_HANDLE_DEFS -CORE_DEFINE_HANDLE(model_handle); -#define ABSENT_MODEL_HANDLE 999999999 -CORE_DEFINE_HANDLE(texture_handle); -#define RESOURCE_HANDLE_DEFS +#include "ral.h" +#include "ral_types.h" +#if defined(CEL_PLATFORM_WINDOWS) +// #include "backend_dx11.h" #endif +#include "backend_vulkan.h" -/* @brief Opaque wrapper around a shader program */ -typedef struct shader { - u32 program_id; -} shader; +struct GLFWwindow; /** @brief configuration passed to the renderer at init time */ typedef struct renderer_config { @@ -36,27 +27,58 @@ typedef struct renderer_config { } renderer_config; typedef struct renderer { - struct GLFWwindow *window; /** Currently all platforms use GLFW*/ - void *backend_state; /** Graphics API-specific state */ + struct GLFWwindow* window; + void* backend_context; renderer_config config; - // shaders - shader blinn_phong; + gpu_device device; + gpu_swapchain swapchain; + gpu_renderpass default_renderpass; + gpu_pipeline static_opaque_pipeline; + bool frame_aborted; + struct resource_pools* resource_pools; } renderer; -// --- Lighting & Materials +typedef struct geometry_data { + vertex_format format; + vertex_darray* vertices; // TODO: make it not a pointer + bool has_indices; + u32_darray indices; + vec3 colour; /** Optional: set vertex colours */ +} geometry_data; + +// 'Upload' a geometry_data (to GPU) -> get back a mesh +typedef struct mesh { + buffer_handle vertex_buffer; + buffer_handle index_buffer; + u32 index_count; + bool has_indices; + geometry_data* vertices; // NULL means it has been freed + bool is_uploaded; + bool is_latent; +} mesh; + +/* Hot reloading: +C side - reload_model(): + - load model from disk using existing loader + - remove from transform graph so it isnt tried to be drawn +*/ + +typedef struct model { + str8 name; + mesh* meshes; + u32 mesh_count; +} model; typedef struct texture { - u32 texture_id; - char name[MAX_TEXTURE_NAME_LEN]; - void *image_data; - u32 width; - u32 height; - u8 channel_count; - u32 channel_type; } texture; +typedef struct texture_data { + texture_desc description; + void* image_data; +} texture_data; + typedef struct blinn_phong_material { - char name[MAX_MATERIAL_NAME_LEN]; + char name[256]; texture diffuse_texture; char diffuse_tex_path[256]; texture specular_texture; @@ -68,18 +90,49 @@ typedef struct blinn_phong_material { bool is_loaded; bool is_uploaded; } blinn_phong_material; -typedef blinn_phong_material material; // when we start using PBR, this will no longer be the case +typedef blinn_phong_material material; // the default blinn-phong material. MUST be initialised with the function below extern material DEFAULT_MATERIAL; void default_material_init(); +#ifndef TYPED_MESH_ARRAY +KITC_DECL_TYPED_ARRAY(mesh) +#define TYPED_MESH_ARRAY +#endif + +#ifndef TYPED_MODEL_ARRAY +KITC_DECL_TYPED_ARRAY(model) +#define TYPED_MODEL_ARRAY +#endif + #ifndef TYPED_MATERIAL_ARRAY -KITC_DECL_TYPED_ARRAY(material) // creates "material_darray" +KITC_DECL_TYPED_ARRAY(material) #define TYPED_MATERIAL_ARRAY #endif -// lights +#ifndef TYPED_ANIMATION_CLIP_ARRAY +#include "animation.h" +KITC_DECL_TYPED_ARRAY(animation_clip) +#define TYPED_ANIMATION_CLIP_ARRAY +#endif + +/** @brief Describes all the data required for the renderer to start executing draws */ +typedef struct render_entity { + /* buffer_handle index_buffer; */ + /* u32 index_count; */ + /* u32 index_offset; */ + /* buffer_handle vertex_buffer; */ + model_handle model; + transform tf; +} render_entity; + +#ifndef TYPED_RENDER_ENTITY_ARRAY +KITC_DECL_TYPED_ARRAY(render_entity) +#define TYPED_RENDER_ENTITY_ARRAY +#endif + +// --- Lights typedef struct point_light { vec3 position; f32 constant, linear, quadratic; @@ -94,85 +147,3 @@ typedef struct directional_light { vec3 diffuse; vec3 specular; } directional_light; - -void point_light_upload_uniforms(shader shader, point_light *light, char index); -void dir_light_upload_uniforms(shader shader, directional_light *light); - -// --- Models & Meshes - -/** @brief Vertex format for a static mesh */ -typedef struct vertex { - vec3 position; - vec3 normal; - vec2 uv; -} vertex; - -#ifndef TYPED_VERTEX_ARRAY -KITC_DECL_TYPED_ARRAY(vertex) // creates "vertex_darray" -#define TYPED_VERTEX_ARRAY -#endif - -typedef struct mesh { - vertex_darray *vertices; - u32 vertex_size; /** size in bytes of each vertex including necessary padding */ - bool has_indices; - u32 *indices; - u32 indices_len; - size_t material_index; - u32 vbo, vao; /** OpenGL data. TODO: dont leak OpenGL details */ -} mesh; - -#ifndef TYPED_MESH_ARRAY -KITC_DECL_TYPED_ARRAY(mesh) // creates "mesh_darray" -#define TYPED_MESH_ARRAY -#endif - -typedef struct model { - str8 name; - mesh_darray *meshes; - aabb_3d bbox; - material_darray *materials; - bool is_loaded; - bool is_uploaded; -} model; - -#ifndef TYPED_MODEL_ARRAY -KITC_DECL_TYPED_ARRAY(model) // creates "model_darray" -#define TYPED_MODEL_ARRAY -#endif - -// --- Scene - -// NOTE: This struct won't stay like this for a long time. It's somewhat temporary -// in order to get a basic scene working without putting burden on the caller of -// draw_model() -typedef struct scene { - directional_light dir_light; - point_light point_lights[4]; - size_t n_point_lights; -} scene; - -// --- Graphics API related - -typedef enum cel_primitive_topology { - CEL_PRIMITIVE_TOPOLOGY_POINT, - CEL_PRIMITIVE_TOPOLOGY_LINE, - CEL_PRIMITIVE_TOPOLOGY_LINE_STRIP, - CEL_PRIMITIVE_TOPOLOGY_TRIANGLE, - CEL_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP, - CEL_PRIMITIVE_TOPOLOGY_COUNT -} cel_primitive_topology; - -typedef enum gpu_texture_type { - TEXTURE_TYPE_2D, - TEXTURE_TYPE_3D, - TEXTURE_TYPE_2D_ARRAY, - TEXTURE_TYPE_CUBE_MAP, - TEXTURE_TYPE_COUNT -} gpu_texture_type; - -typedef enum gpu_texture_format { - TEXTURE_FORMAT_8_8_8_8_RGBA_UNORM, - TEXTURE_FORMAT_DEPTH_DEFAULT, - TEXTURE_FORMAT_COUNT -} gpu_texture_format; diff --git a/src/renderer/renderpasses.h b/src/renderer/renderpasses.h new file mode 100644 index 0000000..951ff6e --- /dev/null +++ b/src/renderer/renderpasses.h @@ -0,0 +1,28 @@ +/** + * @file renderpasses.h + * @author your name (you@domain.com) + * @brief Built-in renderpasses to the engine + * @version 0.1 + * @date 2024-04-28 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once +#include "maths_types.h" +#include "ral.h" +#include "render.h" +#include "render_types.h" + +// Shadowmap pass +// Blinn-phong pass +// Unlit pass +// Debug visualisations pass + +// Don't need to pass in *anything*. +gpu_renderpass* renderpass_blinn_phong_create(); +void renderpass_blinn_phong_execute(gpu_renderpass* pass, render_entity* entities, + size_t entity_count); + +gpu_renderpass* renderpass_shadows_create(); +void renderpass_shadows_execute(gpu_renderpass* pass, render_entity* entities, size_t entity_count);
\ No newline at end of file diff --git a/src/resources/gltf.c b/src/resources/gltf.c index b269fcd..022bf95 100644 --- a/src/resources/gltf.c +++ b/src/resources/gltf.c @@ -1,19 +1,23 @@ #include <assert.h> #include <stdlib.h> #include <string.h> +#include "animation.h" #include "core.h" #include "defines.h" #include "file.h" #include "loaders.h" #include "log.h" +#include "maths.h" +#include "maths_types.h" +#include "mem.h" #include "path.h" #include "render.h" +// #include "render_backend.h" #include "render_types.h" #include "str.h" #define CGLTF_IMPLEMENTATION #include <cgltf.h> -// TODO: Port code from old repo struct face { cgltf_uint indices[3]; @@ -22,8 +26,10 @@ typedef struct face face; KITC_DECL_TYPED_ARRAY(vec3) KITC_DECL_TYPED_ARRAY(vec2) -KITC_DECL_TYPED_ARRAY(u32) +KITC_DECL_TYPED_ARRAY(vec4u) +KITC_DECL_TYPED_ARRAY(vec4) KITC_DECL_TYPED_ARRAY(face) +// KITC_DECL_TYPED_ARRAY(joint) bool model_load_gltf_str(const char *file_string, const char *filepath, str8 relative_path, model *out_model, bool invert_textures_y); @@ -42,7 +48,7 @@ model_handle model_load_gltf(struct core *core, const char *path, bool invert_te model model = { 0 }; model.name = str8_cstr_view(path); model.meshes = mesh_darray_new(1); - model.materials = material_darray_new(1); + // model.materials = material_darray_new(1); bool success = model_load_gltf_str(file_string, path, relative_path.path, &model, invert_texture_y); @@ -60,174 +66,426 @@ model_handle model_load_gltf(struct core *core, const char *path, bool invert_te return (model_handle){ .raw = index }; } +void assert_path_type_matches_component_type(cgltf_animation_path_type target_path, + cgltf_accessor *output) { + if (target_path == cgltf_animation_path_type_rotation) { + assert(output->component_type == cgltf_component_type_r_32f); + assert(output->type == cgltf_type_vec4); + } +} + // TODO: Brainstorm how I can make this simpler and break it up into more testable pieces bool model_load_gltf_str(const char *file_string, const char *filepath, str8 relative_path, model *out_model, bool invert_textures_y) { - TRACE("Load GLTF from string"); - - // Setup temps - vec3_darray *tmp_positions = vec3_darray_new(1000); - vec3_darray *tmp_normals = vec3_darray_new(1000); - vec2_darray *tmp_uvs = vec2_darray_new(1000); - face_darray *tmp_faces = face_darray_new(1000); - - cgltf_options options = { 0 }; - cgltf_data *data = NULL; - cgltf_result result = cgltf_parse_file(&options, filepath, &data); - if (result != cgltf_result_success) { - WARN("gltf load failed"); - // TODO: cleanup arrays(allocate all from arena ?) - return false; - } - - cgltf_load_buffers(&options, data, filepath); - DEBUG("loaded buffers"); - - // --- Materials - TRACE("Num materials %d", data->materials_count); - size_t num_materials = data->materials_count; - for (size_t m = 0; m < num_materials; m++) { - cgltf_material gltf_material = data->materials[m]; - material our_material = DEFAULT_MATERIAL; - - strcpy(our_material.name, gltf_material.name); - - cgltf_pbr_metallic_roughness pbr = gltf_material.pbr_metallic_roughness; - if (gltf_material.has_pbr_metallic_roughness) { - // we will use base color texture like blinn phong - cgltf_texture_view diff_tex_view = pbr.base_color_texture; - - char diffuse_map_path[1024]; - snprintf(diffuse_map_path, sizeof(diffuse_map_path), "%s/%s", relative_path.buf, - diff_tex_view.texture->image->uri); - - strcpy(our_material.diffuse_tex_path, diffuse_map_path); - texture diffuse_texture = texture_data_load(our_material.diffuse_tex_path, false); - texture_data_upload(&diffuse_texture); - our_material.diffuse_texture = diffuse_texture; - - cgltf_texture_view specular_tex_view = pbr.metallic_roughness_texture; - - char specular_map_path[1024]; - snprintf(specular_map_path, sizeof(specular_map_path), "%s/%s", relative_path.buf, - specular_tex_view.texture->image->uri); - - strcpy(our_material.specular_tex_path, specular_map_path); - texture specular_texture = texture_data_load(our_material.specular_tex_path, false); - texture_data_upload(&specular_texture); - our_material.specular_texture = specular_texture; - } - - material_darray_push(out_model->materials, our_material); - } - - // --- Meshes - TRACE("Num meshes %d", data->meshes_count); - size_t num_meshes = data->meshes_count; - for (size_t m = 0; m < num_meshes; m++) { - cgltf_primitive primitive = data->meshes[m].primitives[0]; - DEBUG("Found %d attributes", primitive.attributes_count); - - for (int a = 0; a < data->meshes[m].primitives[0].attributes_count; a++) { - cgltf_attribute attribute = data->meshes[m].primitives[0].attributes[a]; - if (attribute.type == cgltf_attribute_type_position) { - TRACE("Load positions from accessor"); - - cgltf_accessor *accessor = attribute.data; - assert(accessor->component_type == cgltf_component_type_r_32f); - // CASSERT_MSG(accessor->type == cgltf_type_vec3, "Vertex positions should be a vec3"); - - for (cgltf_size v = 0; v < accessor->count; ++v) { - vec3 pos; - cgltf_accessor_read_float(accessor, v, &pos.x, 3); - vec3_darray_push(tmp_positions, pos); - } - - } else if (attribute.type == cgltf_attribute_type_normal) { - TRACE("Load normals from accessor"); - - cgltf_accessor *accessor = attribute.data; - assert(accessor->component_type == cgltf_component_type_r_32f); - // CASSERT_MSG(accessor->type == cgltf_type_vec3, "Normal vectors should be a vec3"); - - for (cgltf_size v = 0; v < accessor->count; ++v) { - vec3 pos; - cgltf_accessor_read_float(accessor, v, &pos.x, 3); - vec3_darray_push(tmp_normals, pos); - } - - } else if (attribute.type == cgltf_attribute_type_texcoord) { - TRACE("Load texture coordinates from accessor"); - cgltf_accessor *accessor = attribute.data; - assert(accessor->component_type == cgltf_component_type_r_32f); - // CASSERT_MSG(accessor->type == cgltf_type_vec2, "Texture coordinates should be a vec2"); - - for (cgltf_size v = 0; v < accessor->count; ++v) { - vec2 tex; - bool success = cgltf_accessor_read_float(accessor, v, &tex.x, 2); - if (!success) { - ERROR("Error loading tex coord"); - } - vec2_darray_push(tmp_uvs, tex); - } - } else if (attribute.type == cgltf_attribute_type_joints) { - // TODO: handle joints - } else { - WARN("Unhandled cgltf_attribute_type: %s. skipping..", attribute.name); - } - } - - mesh mesh; - mesh.vertices = vertex_darray_new(10); - - cgltf_accessor *indices = primitive.indices; - if (primitive.indices > 0) { - mesh.has_indices = true; - - mesh.indices = malloc(indices->count * sizeof(u32)); - mesh.indices_len = indices->count; - - // store indices - for (cgltf_size i = 0; i < indices->count; ++i) { - cgltf_uint ei; - cgltf_accessor_read_uint(indices, i, &ei, 1); - mesh.indices[i] = ei; - } - - // fetch and store vertices for each index - for (cgltf_size i = 0; i < indices->count; ++i) { - vertex vert; - cgltf_uint index = mesh.indices[i]; - vert.position = tmp_positions->data[index]; - vert.normal = tmp_normals->data[index]; - vert.uv = tmp_uvs->data[index]; - vertex_darray_push(mesh.vertices, vert); - } - } else { - mesh.has_indices = false; - return false; // TODO - } - - if (primitive.material != NULL) { - for (int i = 0; i < material_darray_len(out_model->materials); i++) { - if (strcmp(primitive.material->name, out_model->materials->data[i].name)) { - TRACE("Found material"); - mesh.material_index = i; - break; - } - } - } - - mesh_darray_push(out_model->meshes, mesh); - } - - for (int i = 0; i < out_model->meshes->len; i++) { - u32 mat_idx = out_model->meshes->data[i].material_index; - printf("Mesh %d Mat index %d Mat name %s\n", i, mat_idx, - out_model->materials->data[mat_idx].name); - } - return true; + return false; + // TRACE("Load GLTF from string"); + + // // Setup temps + // vec3_darray *tmp_positions = vec3_darray_new(1000); + // vec3_darray *tmp_normals = vec3_darray_new(1000); + // vec2_darray *tmp_uvs = vec2_darray_new(1000); + // vec4u_darray *tmp_joint_indices = vec4u_darray_new(1000); + // vec4_darray *tmp_weights = vec4_darray_new(1000); + // // FIXME + // // joint_darray *tmp_joints = joint_darray_new(256); + // // vertex_bone_data_darray *tmp_vertex_bone_data = vertex_bone_data_darray_new(1000); + + // cgltf_options options = { 0 }; + // cgltf_data *data = NULL; + // cgltf_result result = cgltf_parse_file(&options, filepath, &data); + // if (result != cgltf_result_success) { + // WARN("gltf load failed"); + // // TODO: cleanup arrays(allocate all from arena ?) + // return false; + // } + + // cgltf_load_buffers(&options, data, filepath); + // DEBUG("loaded buffers"); + + // // --- Skin + // size_t num_skins = data->skins_count; + // bool is_skinned = false; + // if (num_skins == 1) { + // is_skinned = true; + // } else if (num_skins > 1) { + // WARN("GLTF files with more than 1 skin are not supported"); + // return false; + // } + + // if (is_skinned) { + // cgltf_skin *gltf_skin = data->skins; + // DEBUG("loading skin %s", gltf_skin->name); + // size_t num_joints = gltf_skin->joints_count; + // DEBUG("# Joints %d", num_joints); + + // cgltf_accessor *gltf_inverse_bind_matrices = gltf_skin->inverse_bind_matrices; + + // // for each one we'll spit out a joint + // for (size_t i = 0; i < num_joints; i++) { + // cgltf_node *joint_node = gltf_skin->joints[i]; + + // joint joint_i = { .name = "testjoint" }; + // if (joint_node->children_count > 0 && !joint_node->has_translation && + // !joint_node->has_rotation) { + // WARN("joint Node with index %d is the root node", i); + // joint_i.transform_components = TRANSFORM_DEFAULT; + // } else { + // TRACE("Storing joint transform"); + // joint_i.transform_components = TRANSFORM_DEFAULT; + // if (joint_node->has_translation) { + // memcpy(&joint_i.transform_components.position, &joint_node->translation, 3 * + // sizeof(f32)); + // } + // if (joint_node->has_rotation) { + // memcpy(&joint_i.transform_components.rotation, &joint_node->rotation, 4 * + // sizeof(f32)); + // } + // // TODO: support scaling as vec instead of float + // } + // joint_i.local_transform = transform_to_mat(&joint_i.transform_components); + // cgltf_accessor_read_float(gltf_inverse_bind_matrices, i, + // &joint_i.inverse_bind_matrix.data[0], + // 16); + // // joint_darray_push(tmp_joints, joint_i); + // } + // } + + // // --- Materials + // TRACE("Num materials %d", data->materials_count); + // size_t num_materials = data->materials_count; + // for (size_t m = 0; m < num_materials; m++) { + // cgltf_material gltf_material = data->materials[m]; + // material our_material = DEFAULT_MATERIAL; + + // strcpy(our_material.name, gltf_material.name); + + // cgltf_pbr_metallic_roughness pbr = gltf_material.pbr_metallic_roughness; + // if (gltf_material.has_pbr_metallic_roughness) { + // // we will use base color texture like blinn phong + // cgltf_texture_view diff_tex_view = pbr.base_color_texture; + + // char diffuse_map_path[1024]; + // snprintf(diffuse_map_path, sizeof(diffuse_map_path), "%s/%s", relative_path.buf, + // diff_tex_view.texture->image->uri); + + // strcpy(our_material.diffuse_tex_path, diffuse_map_path); + // texture diffuse_texture = texture_data_load(our_material.diffuse_tex_path, false); + // texture_data_upload(&diffuse_texture); + // our_material.diffuse_texture = diffuse_texture; + + // cgltf_texture_view specular_tex_view = pbr.metallic_roughness_texture; + + // char specular_map_path[1024]; + // snprintf(specular_map_path, sizeof(specular_map_path), "%s/%s", relative_path.buf, + // specular_tex_view.texture->image->uri); + + // strcpy(our_material.specular_tex_path, specular_map_path); + // texture specular_texture = texture_data_load(our_material.specular_tex_path, false); + // texture_data_upload(&specular_texture); + // our_material.specular_texture = specular_texture; + // } + + // // material_darray_push(out_model->materials, our_material); + // } + + // // --- Meshes + // TRACE("Num meshes %d", data->meshes_count); + // size_t num_meshes = data->meshes_count; + // for (size_t m = 0; m < num_meshes; m++) { + // cgltf_primitive primitive = data->meshes[m].primitives[0]; + // DEBUG("Found %d attributes", primitive.attributes_count); + // // DEBUG("Number of this primitive %d", primitive.) + + // for (int a = 0; a < data->meshes[m].primitives[0].attributes_count; a++) { + // cgltf_attribute attribute = data->meshes[m].primitives[0].attributes[a]; + // if (attribute.type == cgltf_attribute_type_position) { + // TRACE("Load positions from accessor"); + + // cgltf_accessor *accessor = attribute.data; + // assert(accessor->component_type == cgltf_component_type_r_32f); + // // CASSERT_MSG(accessor->type == cgltf_type_vec3, "Vertex positions should be a vec3"); + + // TRACE("Loading %d vec3 components", accessor->count); + + // for (cgltf_size v = 0; v < accessor->count; ++v) { + // vec3 pos; + // cgltf_accessor_read_float(accessor, v, &pos.x, 3); + // vec3_darray_push(tmp_positions, pos); + // } + + // } else if (attribute.type == cgltf_attribute_type_normal) { + // TRACE("Load normals from accessor"); + + // cgltf_accessor *accessor = attribute.data; + // assert(accessor->component_type == cgltf_component_type_r_32f); + // // CASSERT_MSG(accessor->type == cgltf_type_vec3, "Normal vectors should be a vec3"); + + // for (cgltf_size v = 0; v < accessor->count; ++v) { + // vec3 pos; + // cgltf_accessor_read_float(accessor, v, &pos.x, 3); + // vec3_darray_push(tmp_normals, pos); + // } + + // } else if (attribute.type == cgltf_attribute_type_texcoord) { + // TRACE("Load texture coordinates from accessor"); + // cgltf_accessor *accessor = attribute.data; + // assert(accessor->component_type == cgltf_component_type_r_32f); + // // CASSERT_MSG(accessor->type == cgltf_type_vec2, "Texture coordinates should be a + // vec2"); + + // for (cgltf_size v = 0; v < accessor->count; ++v) { + // vec2 tex; + // bool success = cgltf_accessor_read_float(accessor, v, &tex.x, 2); + // if (!success) { + // ERROR("Error loading tex coord"); + // } + // vec2_darray_push(tmp_uvs, tex); + // } + // } else if (attribute.type == cgltf_attribute_type_joints) { + // TRACE("Load joint indices from accessor"); + // cgltf_accessor *accessor = attribute.data; + // assert(accessor->component_type == cgltf_component_type_r_16u); + // assert(accessor->type == cgltf_type_vec4); + // vec4u joint_indices; + // vec4 joints_as_floats; + // for (cgltf_size v = 0; v < accessor->count; ++v) { + // cgltf_accessor_read_float(accessor, v, &joints_as_floats.x, 4); + // joint_indices.x = (u32)joints_as_floats.x; + // joint_indices.y = (u32)joints_as_floats.y; + // joint_indices.z = (u32)joints_as_floats.z; + // joint_indices.w = (u32)joints_as_floats.w; + // printf("Joints affecting vertex %d : %d %d %d %d\n", v, joint_indices.x, + // joint_indices.y, + // joint_indices.z, joint_indices.w); + // vec4u_darray_push(tmp_joint_indices, joint_indices); + // } + + // } else if (attribute.type == cgltf_attribute_type_weights) { + // TRACE("Load joint weights from accessor"); + // cgltf_accessor *accessor = attribute.data; + // assert(accessor->component_type == cgltf_component_type_r_32f); + // assert(accessor->type == cgltf_type_vec4); + + // for (cgltf_size v = 0; v < accessor->count; ++v) { + // vec4 weights; + // cgltf_accessor_read_float(accessor, v, &weights.x, 4); + // printf("Weights affecting vertex %d : %f %f %f %f\n", v, weights.x, weights.y, + // weights.z, + // weights.w); + // vec4_darray_push(tmp_weights, weights); + // } + // } else { + // WARN("Unhandled cgltf_attribute_type: %s. skipping..", attribute.name); + // } + // } + + // mesh mesh = { 0 }; + // mesh.vertices = vertex_darray_new(10); + // // mesh.vertex_bone_data = vertex_bone_data_darray_new(1); + + // if (primitive.material != NULL) { + // // for (int i = 0; i < material_darray_len(out_model->materials); i++) { + // // printf("%s vs %s \n", primitive.material->name, out_model->materials->data[i].name); + // // if (strcmp(primitive.material->name, out_model->materials->data[i].name) == 0) { + // // TRACE("Found material"); + // // mesh.material_index = i; + // // break; + // // } + // // } + // } + + // // FIXME + // // if (is_skinned) { + // // mesh.is_skinned = true; + // // // mesh.vertex_bone_data = vertex_bone_data_darray_new(tmp_joint_indices->len); + // // mesh.bones = joint_darray_new(tmp_joints->len); + // // for (int i = 0; i < tmp_joint_indices->len; i++) { + // // vertex_bone_data data; + // // data.joints = tmp_joint_indices->data[i]; + // // data.weights = tmp_weights->data[i]; + // // vertex_bone_data_darray_push(tmp_vertex_bone_data, + // // data); // Push the temp data that aligns with raw + // vertices + // // } + // // for (int i = 0; i < tmp_joints->len; i++) { + // // joint data = tmp_joints->data[i]; + // // joint_darray_push(mesh.bones, data); + // // } + // // } + + // cgltf_accessor *indices = primitive.indices; + // if (primitive.indices > 0) { + // WARN("indices!"); + // mesh.has_indices = true; + + // mesh.indices = malloc(indices->count * sizeof(u32)); + // mesh.indices_len = indices->count; + + // // store indices + // for (cgltf_size i = 0; i < indices->count; ++i) { + // cgltf_uint ei; + // cgltf_accessor_read_uint(indices, i, &ei, 1); + // mesh.indices[i] = ei; + // } + + // // fetch and store vertices for each index + // for (cgltf_size i = 0; i < indices->count; ++i) { + // vertex vert; + // cgltf_uint index = mesh.indices[i]; + // vert.position = tmp_positions->data[index]; + // vert.normal = tmp_normals->data[index]; + // vert.uv = tmp_uvs->data[index]; + // vertex_darray_push(mesh.vertices, vert); + + // if (is_skinned) { + // vertex_bone_data vbd = tmp_vertex_bone_data->data[index]; // create a copy + // vertex_bone_data_darray_push(mesh.vertex_bone_data, vbd); + // } + // // for each vertex do the bone data + // } + // } else { + // mesh.has_indices = false; + // return false; // TODO + // } + + // mesh_darray_push(out_model->meshes, mesh); + + // // clear data for each mesh + // vec3_darray_clear(tmp_positions); + // vec3_darray_clear(tmp_normals); + // vec2_darray_free(tmp_uvs); + // vec4u_darray_clear(tmp_joint_indices); + // vec4_darray_clear(tmp_weights); + // joint_darray_clear(tmp_joints); + // } + + // for (int i = 0; i < out_model->meshes->len; i++) { + // u32 mat_idx = out_model->meshes->data[i].material_index; + // printf("Mesh %d Mat index %d Mat name %s\n", i, mat_idx, + // out_model->materials->data[mat_idx].name); + // } + + // // Animations + // TRACE("Num animations %d", data->animations_count); + // size_t num_animations = data->animations_count; + // if (num_animations > 0) { + // // Create an arena for all animation related data + // #define ANIMATION_STORAGE_ARENA_SIZE (1024 * 1024 * 1024) + // char *animation_backing_storage = malloc(ANIMATION_STORAGE_ARENA_SIZE); + // // We'll store data on this arena so we can easily free it all at once later + // out_model->animation_data_arena = + // arena_create(animation_backing_storage, ANIMATION_STORAGE_ARENA_SIZE); + // arena *arena = &out_model->animation_data_arena; + + // if (!out_model->animations) { + // out_model->animations = animation_clip_darray_new(num_animations); + // } + + // for (int anim_idx = 0; anim_idx < data->animations_count; anim_idx++) { + // cgltf_animation animation = data->animations[anim_idx]; + // animation_clip clip = { 0 }; + + // for (size_t c = 0; c < animation.channels_count; c++) { + // cgltf_animation_channel channel = animation.channels[c]; + + // animation_sampler *sampler = arena_alloc(arena, sizeof(animation_sampler)); + + // animation_sampler **target_property; + // keyframe_kind data_type; + + // switch (channel.target_path) { + // case cgltf_animation_path_type_rotation: + // target_property = &clip.rotation; + // data_type = KEYFRAME_ROTATION; + // break; + // case cgltf_animation_path_type_translation: + // target_property = &clip.translation; + // data_type = KEYFRAME_TRANSLATION; + // break; + // case cgltf_animation_path_type_scale: + // target_property = &clip.scale; + // data_type = KEYFRAME_SCALE; + // break; + // case cgltf_animation_path_type_weights: + // target_property = &clip.weights; + // data_type = KEYFRAME_WEIGHTS; + // WARN("Morph target weights arent supported yet"); + // return false; + // default: + // WARN("unsupported animation type"); + // return false; + // } + // *target_property = sampler; + + // sampler->current_index = 0; + // printf("1 %d index\n", sampler->current_index); + // sampler->animation.interpolation = INTERPOLATION_LINEAR; + + // // keyframe times + // size_t n_frames = channel.sampler->input->count; + // assert(channel.sampler->input->component_type == cgltf_component_type_r_32f); + // // FIXME: CASSERT_MSG function "Expected animation sampler input component to be type + // f32 + // // (keyframe times)"); + // f32 *times = arena_alloc(arena, n_frames * sizeof(f32)); + // sampler->animation.n_timestamps = n_frames; + // sampler->animation.timestamps = times; + // cgltf_accessor_unpack_floats(channel.sampler->input, times, n_frames); + + // assert_path_type_matches_component_type(channel.target_path, channel.sampler->output); + + // // keyframe values + // size_t n_values = channel.sampler->output->count; + // assert(n_frames == n_values); + + // keyframes keyframes = { 0 }; + // keyframes.kind = KEYFRAME_ROTATION; + // keyframes.count = n_values; + // keyframes.values = arena_alloc(arena, n_values * sizeof(keyframe)); + // for (cgltf_size v = 0; v < channel.sampler->output->count; ++v) { + // switch (data_type) { + // case KEYFRAME_ROTATION: { + // quat rot; + // cgltf_accessor_read_float(channel.sampler->output, v, &rot.x, 4); + // // printf("Quat %f %f %f %f\n", rot.x, rot.y, rot.z, rot.w); + // keyframes.values[v].rotation = rot; + // break; + // } + // case KEYFRAME_TRANSLATION: { + // vec3 trans; + // cgltf_accessor_read_float(channel.sampler->output, v, &trans.x, 3); + // keyframes.values[v].translation = trans; + // break; + // } + // case KEYFRAME_SCALE: { + // vec3 scale; + // cgltf_accessor_read_float(channel.sampler->output, v, &scale.x, 3); + // keyframes.values[v].scale = scale; + // break; + // } + // case KEYFRAME_WEIGHTS: { + // // TODO + // break; + // } + // } + // } + // sampler->animation.values = keyframes; + + // sampler->min = channel.sampler->input->min[0]; + // sampler->max = channel.sampler->input->max[0]; + + // // clip.rotation = sampler; + // // printf("%d timestamps\n", sampler->animation.n_timestamps); + // // printf("%d index\n", sampler->current_index); + // } + + // WARN("stuff %ld", clip.rotation->animation.n_timestamps); + // animation_clip_darray_push(out_model->animations, clip); + // } + // } + + // return true; } /* diff --git a/src/resources/obj.c b/src/resources/obj.c index c6e9fa6..888e16e 100644 --- a/src/resources/obj.c +++ b/src/resources/obj.c @@ -18,6 +18,7 @@ #include "mem.h" #include "path.h" #include "render.h" +// #include "render_backend.h" #include "render_types.h" #include "str.h" @@ -54,7 +55,7 @@ model_handle model_load_obj(core *core, const char *path, bool invert_textures_y model model = { 0 }; model.name = str8_cstr_view(path); model.meshes = mesh_darray_new(1); - model.materials = material_darray_new(1); + // model.materials = material_darray_new(1); bool success = model_load_obj_str(file_string, relative_path.path, &model, invert_textures_y); @@ -75,151 +76,157 @@ bool model_load_obj_str(const char *file_string, str8 relative_path, model *out_ bool invert_textures_y) { TRACE("Load OBJ from string"); - // Setup temps - vec3_darray *tmp_positions = vec3_darray_new(1000); - vec3_darray *tmp_normals = vec3_darray_new(1000); - vec2_darray *tmp_uvs = vec2_darray_new(1000); - face_darray *tmp_faces = face_darray_new(1000); - // TODO: In the future I'd like these temporary arrays to be allocated from an arena provided - // by the function one level up, model_load_obj. That way we can just `return false;` anywhere in - // this code to indicate an error, and be sure that all that memory will be cleaned up without - // having to call vec3_darray_free in every single error case before returning. - - // Other state - bool object_set = false; - bool material_loaded = false; - char current_material_name[64]; - - char *pch; - char *rest = file_string; - pch = strtok_r((char *)file_string, "\n", &rest); - - int line_num = 0; - char last_char_type = 'a'; - - while (pch != NULL) { - line_num++; - char line_header[128]; - int offset = 0; - - // skip whitespace - char *p = pch; - - skip_space(pch); - - if (*p == '\0') { - /* the string is empty */ - } else { - // read the first word of the line - int res = sscanf(pch, "%s %n", line_header, &offset); - /* printf("header: %s, offset : %d res: %d\n",line_header, offset, res); */ - if (res != 1) { - break; - } - - if (strcmp(line_header, "o") == 0 || strcmp(line_header, "g") == 0) { - // if we're currently parsing one - if (!object_set) { - object_set = true; - } else { - create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, - out_model->materials, material_loaded, current_material_name); - object_set = false; - } - } else if (strcmp(line_header, "v") == 0) { - // special logic: if we went from faces back to vertices trigger a mesh output. - // PS: I hate OBJ - if (last_char_type == 'f') { - create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, - out_model->materials, material_loaded, current_material_name); - object_set = false; - } - - last_char_type = 'v'; - vec3 vertex; - sscanf(pch + offset, "%f %f %f", &vertex.x, &vertex.y, &vertex.z); - - vec3_darray_push(tmp_positions, vertex); - } else if (strcmp(line_header, "vt") == 0) { - last_char_type = 't'; - vec2 uv; - char copy[1024]; - memcpy(copy, pch + offset, strlen(pch + offset) + 1); - char *p = pch + offset; - while (isspace((unsigned char)*p)) ++p; - - // I can't remember what is going on here - memset(copy, 0, 1024); - memcpy(copy, pch + offset, strlen(pch + offset) + 1); - int res = sscanf(copy, "%f %f", &uv.x, &uv.y); - memset(copy, 0, 1024); - memcpy(copy, pch + offset, strlen(pch + offset) + 1); - if (res != 1) { - // da frick? some .obj files have 3 uvs instead of 2 - f32 dummy; - int res2 = sscanf(copy, "%f %f %f", &uv.x, &uv.y, &dummy); - } - - if (invert_textures_y) { - uv.y = -uv.y; // flip Y axis to be consistent with how other PNGs are being handled - // `texture_load` will flip it again - } - vec2_darray_push(tmp_uvs, uv); - } else if (strcmp(line_header, "vn") == 0) { - last_char_type = 'n'; - vec3 normal; - sscanf(pch + offset, "%f %f %f", &normal.x, &normal.y, &normal.z); - vec3_darray_push(tmp_normals, normal); - } else if (strcmp(line_header, "f") == 0) { - last_char_type = 'f'; - struct face f; - sscanf(pch + offset, "%d/%d/%d %d/%d/%d %d/%d/%d", &f.vertex_indices[0], &f.uv_indices[0], - &f.normal_indices[0], &f.vertex_indices[1], &f.uv_indices[1], &f.normal_indices[1], - &f.vertex_indices[2], &f.uv_indices[2], &f.normal_indices[2]); - // printf("f %d/%d/%d %d/%d/%d %d/%d/%d\n", f.vertex_indices[0], f.uv_indices[0], - // f.normal_indices[0], - // f.vertex_indices[1], f.uv_indices[1], f.normal_indices[1], - // f.vertex_indices[2], f.uv_indices[2], f.normal_indices[2]); - face_darray_push(tmp_faces, f); - } else if (strcmp(line_header, "mtllib") == 0) { - char filename[1024]; - sscanf(pch + offset, "%s", filename); - char mtllib_path[1024]; - snprintf(mtllib_path, sizeof(mtllib_path), "%s/%s", relative_path.buf, filename); - if (!load_material_lib(mtllib_path, relative_path, out_model->materials)) { - ERROR("couldnt load material lib"); - return false; - } - } else if (strcmp(line_header, "usemtl") == 0) { - material_loaded = true; - sscanf(pch + offset, "%s", current_material_name); - } - } - - pch = strtok_r(NULL, "\n", &rest); - } - - // last mesh or if one wasnt created with 'o' directive - if (face_darray_len(tmp_faces) > 0) { - TRACE("Last leftover mesh"); - create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, - out_model->materials, material_loaded, current_material_name); - } - - // Free data - free((char *)file_string); - vec3_darray_free(tmp_positions); - vec3_darray_free(tmp_normals); - vec2_darray_free(tmp_uvs); - face_darray_free(tmp_faces); - TRACE("Freed temporary OBJ loading data"); - - if (mesh_darray_len(out_model->meshes) > 256) { - printf("num meshes: %ld\n", mesh_darray_len(out_model->meshes)); - } - - // TODO: bounding box calculation for each mesh - // TODO: bounding box calculation for model + // // Setup temps + // vec3_darray *tmp_positions = vec3_darray_new(1000); + // vec3_darray *tmp_normals = vec3_darray_new(1000); + // vec2_darray *tmp_uvs = vec2_darray_new(1000); + // face_darray *tmp_faces = face_darray_new(1000); + // // TODO: In the future I'd like these temporary arrays to be allocated from an arena provided + // // by the function one level up, model_load_obj. That way we can just `return false;` anywhere + // in + // // this code to indicate an error, and be sure that all that memory will be cleaned up without + // // having to call vec3_darray_free in every single error case before returning. + + // // Other state + // bool object_set = false; + // bool material_loaded = false; + // char current_material_name[64]; + + // char *pch; + // char *rest = file_string; + // pch = strtok_r((char *)file_string, "\n", &rest); + + // int line_num = 0; + // char last_char_type = 'a'; + + // while (pch != NULL) { + // line_num++; + // char line_header[128]; + // int offset = 0; + + // // skip whitespace + // char *p = pch; + + // skip_space(pch); + + // if (*p == '\0') { + // /* the string is empty */ + // } else { + // // read the first word of the line + // int res = sscanf(pch, "%s %n", line_header, &offset); + // /* printf("header: %s, offset : %d res: %d\n",line_header, offset, res); */ + // if (res != 1) { + // break; + // } + + // if (strcmp(line_header, "o") == 0 || strcmp(line_header, "g") == 0) { + // // if we're currently parsing one + // if (!object_set) { + // object_set = true; + // } else { + // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, + // NULL, // out_model->materials, + // material_loaded, current_material_name); + // object_set = false; + // } + // } else if (strcmp(line_header, "v") == 0) { + // // special logic: if we went from faces back to vertices trigger a mesh output. + // // PS: I hate OBJ + // if (last_char_type == 'f') { + // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, + // NULL, // FIXME: out_model->materials, + // material_loaded, current_material_name); + // object_set = false; + // } + + // last_char_type = 'v'; + // vec3 vertex; + // sscanf(pch + offset, "%f %f %f", &vertex.x, &vertex.y, &vertex.z); + + // vec3_darray_push(tmp_positions, vertex); + // } else if (strcmp(line_header, "vt") == 0) { + // last_char_type = 't'; + // vec2 uv; + // char copy[1024]; + // memcpy(copy, pch + offset, strlen(pch + offset) + 1); + // char *p = pch + offset; + // while (isspace((unsigned char)*p)) ++p; + + // // I can't remember what is going on here + // memset(copy, 0, 1024); + // memcpy(copy, pch + offset, strlen(pch + offset) + 1); + // int res = sscanf(copy, "%f %f", &uv.x, &uv.y); + // memset(copy, 0, 1024); + // memcpy(copy, pch + offset, strlen(pch + offset) + 1); + // if (res != 1) { + // // da frick? some .obj files have 3 uvs instead of 2 + // f32 dummy; + // int res2 = sscanf(copy, "%f %f %f", &uv.x, &uv.y, &dummy); + // } + + // if (invert_textures_y) { + // uv.y = -uv.y; // flip Y axis to be consistent with how other PNGs are being handled + // // `texture_load` will flip it again + // } + // vec2_darray_push(tmp_uvs, uv); + // } else if (strcmp(line_header, "vn") == 0) { + // last_char_type = 'n'; + // vec3 normal; + // sscanf(pch + offset, "%f %f %f", &normal.x, &normal.y, &normal.z); + // vec3_darray_push(tmp_normals, normal); + // } else if (strcmp(line_header, "f") == 0) { + // last_char_type = 'f'; + // struct face f; + // sscanf(pch + offset, "%d/%d/%d %d/%d/%d %d/%d/%d", &f.vertex_indices[0], + // &f.uv_indices[0], + // &f.normal_indices[0], &f.vertex_indices[1], &f.uv_indices[1], + // &f.normal_indices[1], &f.vertex_indices[2], &f.uv_indices[2], + // &f.normal_indices[2]); + // // printf("f %d/%d/%d %d/%d/%d %d/%d/%d\n", f.vertex_indices[0], f.uv_indices[0], + // // f.normal_indices[0], + // // f.vertex_indices[1], f.uv_indices[1], f.normal_indices[1], + // // f.vertex_indices[2], f.uv_indices[2], f.normal_indices[2]); + // face_darray_push(tmp_faces, f); + // } else if (strcmp(line_header, "mtllib") == 0) { + // char filename[1024]; + // sscanf(pch + offset, "%s", filename); + // char mtllib_path[1024]; + // snprintf(mtllib_path, sizeof(mtllib_path), "%s/%s", relative_path.buf, filename); + // if (!load_material_lib(mtllib_path, relative_path, out_model->materials)) { + // ERROR("couldnt load material lib"); + // return false; + // } + // } else if (strcmp(line_header, "usemtl") == 0) { + // material_loaded = true; + // sscanf(pch + offset, "%s", current_material_name); + // } + // } + + // pch = strtok_r(NULL, "\n", &rest); + // } + + // // last mesh or if one wasnt created with 'o' directive + // if (face_darray_len(tmp_faces) > 0) { + // TRACE("Last leftover mesh"); + // create_submesh(out_model->meshes, tmp_positions, tmp_normals, tmp_uvs, tmp_faces, + // NULL, // TODO: out_model->materials, + // material_loaded, current_material_name); + // } + + // // Free data + // free((char *)file_string); + // vec3_darray_free(tmp_positions); + // vec3_darray_free(tmp_normals); + // vec2_darray_free(tmp_uvs); + // face_darray_free(tmp_faces); + // TRACE("Freed temporary OBJ loading data"); + + // if (mesh_darray_len(out_model->meshes) > 256) { + // printf("num meshes: %ld\n", mesh_darray_len(out_model->meshes)); + // } + + // // TODO: bounding box calculation for each mesh + // // TODO: bounding box calculation for model return true; } @@ -231,158 +238,159 @@ bool model_load_obj_str(const char *file_string, str8 relative_path, model *out_ void create_submesh(mesh_darray *meshes, vec3_darray *tmp_positions, vec3_darray *tmp_normals, vec2_darray *tmp_uvs, face_darray *tmp_faces, material_darray *materials, bool material_loaded, char current_material_name[256]) { - size_t num_verts = face_darray_len(tmp_faces) * 3; - vertex_darray *out_vertices = vertex_darray_new(num_verts); - - face_darray_iter face_iter = face_darray_iter_new(tmp_faces); - struct face *f; - - while ((f = face_darray_iter_next(&face_iter))) { - for (int j = 0; j < 3; j++) { - vertex vert = { 0 }; - vert.position = tmp_positions->data[f->vertex_indices[j] - 1]; - if (vec3_darray_len(tmp_normals) == 0) { - vert.normal = vec3_create(0.0, 0.0, 0.0); - } else { - vert.normal = tmp_normals->data[f->normal_indices[j] - 1]; - } - vert.uv = tmp_uvs->data[f->uv_indices[j] - 1]; - vertex_darray_push(out_vertices, vert); - } - } - - DEBUG("Loaded submesh\n vertices: %zu\n uvs: %zu\n normals: %zu\n faces: %zu", - vec3_darray_len(tmp_positions), vec2_darray_len(tmp_uvs), vec3_darray_len(tmp_normals), - face_darray_len(tmp_faces)); - - // Clear current object faces - face_darray_clear(tmp_faces); - - mesh m = { .vertices = out_vertices }; - if (material_loaded) { - // linear scan to find material - bool found = false; - DEBUG("Num of materials : %ld", material_darray_len(materials)); - material_darray_iter mat_iter = material_darray_iter_new(materials); - blinn_phong_material *cur_material; - while ((cur_material = material_darray_iter_next(&mat_iter))) { - if (strcmp(cur_material->name, current_material_name) == 0) { - DEBUG("Found match"); - m.material_index = mat_iter.current_idx - 1; - found = true; - break; - } - } - - if (!found) { - // TODO: default material - m.material_index = 0; - DEBUG("Set default material"); - } - } - mesh_darray_push(meshes, m); + // size_t num_verts = face_darray_len(tmp_faces) * 3; + // vertex_darray *out_vertices = vertex_darray_new(num_verts); + + // face_darray_iter face_iter = face_darray_iter_new(tmp_faces); + // struct face *f; + + // while ((f = face_darray_iter_next(&face_iter))) { + // for (int j = 0; j < 3; j++) { + // vertex vert = { 0 }; + // vert.position = tmp_positions->data[f->vertex_indices[j] - 1]; + // if (vec3_darray_len(tmp_normals) == 0) { + // vert.normal = vec3_create(0.0, 0.0, 0.0); + // } else { + // vert.normal = tmp_normals->data[f->normal_indices[j] - 1]; + // } + // vert.uv = tmp_uvs->data[f->uv_indices[j] - 1]; + // vertex_darray_push(out_vertices, vert); + // } + // } + + // DEBUG("Loaded submesh\n vertices: %zu\n uvs: %zu\n normals: %zu\n faces: %zu", + // vec3_darray_len(tmp_positions), vec2_darray_len(tmp_uvs), vec3_darray_len(tmp_normals), + // face_darray_len(tmp_faces)); + + // // Clear current object faces + // face_darray_clear(tmp_faces); + + // mesh m = { .vertices = out_vertices }; + // if (material_loaded) { + // // linear scan to find material + // bool found = false; + // DEBUG("Num of materials : %ld", material_darray_len(materials)); + // material_darray_iter mat_iter = material_darray_iter_new(materials); + // blinn_phong_material *cur_material; + // while ((cur_material = material_darray_iter_next(&mat_iter))) { + // if (strcmp(cur_material->name, current_material_name) == 0) { + // DEBUG("Found match"); + // m.material_index = mat_iter.current_idx - 1; + // found = true; + // break; + // } + // } + + // if (!found) { + // // TODO: default material + // m.material_index = 0; + // DEBUG("Set default material"); + // } + // } + // mesh_darray_push(meshes, m); } bool load_material_lib(const char *path, str8 relative_path, material_darray *materials) { TRACE("BEGIN load material lib at %s", path); - const char *file_string = string_from_file(path); - if (file_string == NULL) { - ERROR("couldnt load %s", path); - return false; - } - - char *pch; - char *saveptr; - pch = strtok_r((char *)file_string, "\n", &saveptr); - - material current_material = DEFAULT_MATERIAL; - - bool material_set = false; - - while (pch != NULL) { - char line_header[128]; - int offset = 0; - // read the first word of the line - int res = sscanf(pch, "%s %n", line_header, &offset); - if (res != 1) { - break; - } - - // When we see "newmtl", start a new material, or flush the previous one - if (strcmp(line_header, "newmtl") == 0) { - if (material_set) { - // a material was being parsed, so flush that one and start a new one - material_darray_push(materials, current_material); - DEBUG("pushed material with name %s", current_material.name); - WARN("Reset current material"); - current_material = DEFAULT_MATERIAL; - } else { - material_set = true; - } - // scan the new material name - char material_name[64]; - sscanf(pch + offset, "%s", current_material.name); - DEBUG("material name %s\n", current_material.name); - // current_material.name = material_name; - } else if (strcmp(line_header, "Ka") == 0) { - // ambient - sscanf(pch + offset, "%f %f %f", ¤t_material.ambient_colour.x, - ¤t_material.ambient_colour.y, ¤t_material.ambient_colour.z); - } else if (strcmp(line_header, "Kd") == 0) { - // diffuse - sscanf(pch + offset, "%f %f %f", ¤t_material.diffuse.x, ¤t_material.diffuse.y, - ¤t_material.diffuse.z); - } else if (strcmp(line_header, "Ks") == 0) { - // specular - sscanf(pch + offset, "%f %f %f", ¤t_material.specular.x, ¤t_material.specular.y, - ¤t_material.specular.z); - } else if (strcmp(line_header, "Ns") == 0) { - // specular exponent - sscanf(pch + offset, "%f", ¤t_material.spec_exponent); - } else if (strcmp(line_header, "map_Kd") == 0) { - char diffuse_map_filename[1024]; - sscanf(pch + offset, "%s", diffuse_map_filename); - char diffuse_map_path[1024]; - snprintf(diffuse_map_path, sizeof(diffuse_map_path), "%s/%s", relative_path.buf, - diffuse_map_filename); - printf("load from %s\n", diffuse_map_path); - - // -------------- - texture diffuse_texture = texture_data_load(diffuse_map_path, true); - current_material.diffuse_texture = diffuse_texture; - strcpy(current_material.diffuse_tex_path, diffuse_map_path); - texture_data_upload(¤t_material.diffuse_texture); - // -------------- - } else if (strcmp(line_header, "map_Ks") == 0) { - // char specular_map_path[1024] = "assets/"; - // sscanf(pch + offset, "%s", specular_map_path + 7); - char specular_map_filename[1024]; - sscanf(pch + offset, "%s", specular_map_filename); - char specular_map_path[1024]; - snprintf(specular_map_path, sizeof(specular_map_path), "%s/%s", relative_path.buf, - specular_map_filename); - printf("load from %s\n", specular_map_path); - // -------------- - texture specular_texture = texture_data_load(specular_map_path, true); - current_material.specular_texture = specular_texture; - strcpy(current_material.specular_tex_path, specular_map_path); - texture_data_upload(¤t_material.specular_texture); - // -------------- - } else if (strcmp(line_header, "map_Bump") == 0) { - // TODO - } - - pch = strtok_r(NULL, "\n", &saveptr); - } - - TRACE("end load material lib"); - - // last mesh or if one wasnt created with 'o' directive - // TRACE("Last leftover material"); - material_darray_push(materials, current_material); - - INFO("Loaded %ld materials", material_darray_len(materials)); + // const char *file_string = string_from_file(path); + // if (file_string == NULL) { + // ERROR("couldnt load %s", path); + // return false; + // } + + // char *pch; + // char *saveptr; + // pch = strtok_r((char *)file_string, "\n", &saveptr); + + // material current_material = DEFAULT_MATERIAL; + + // bool material_set = false; + + // while (pch != NULL) { + // char line_header[128]; + // int offset = 0; + // // read the first word of the line + // int res = sscanf(pch, "%s %n", line_header, &offset); + // if (res != 1) { + // break; + // } + + // // When we see "newmtl", start a new material, or flush the previous one + // if (strcmp(line_header, "newmtl") == 0) { + // if (material_set) { + // // a material was being parsed, so flush that one and start a new one + // material_darray_push(materials, current_material); + // DEBUG("pushed material with name %s", current_material.name); + // WARN("Reset current material"); + // current_material = DEFAULT_MATERIAL; + // } else { + // material_set = true; + // } + // // scan the new material name + // char material_name[64]; + // sscanf(pch + offset, "%s", current_material.name); + // DEBUG("material name %s\n", current_material.name); + // // current_material.name = material_name; + // } else if (strcmp(line_header, "Ka") == 0) { + // // ambient + // sscanf(pch + offset, "%f %f %f", ¤t_material.ambient_colour.x, + // ¤t_material.ambient_colour.y, ¤t_material.ambient_colour.z); + // } else if (strcmp(line_header, "Kd") == 0) { + // // diffuse + // sscanf(pch + offset, "%f %f %f", ¤t_material.diffuse.x, ¤t_material.diffuse.y, + // ¤t_material.diffuse.z); + // } else if (strcmp(line_header, "Ks") == 0) { + // // specular + // sscanf(pch + offset, "%f %f %f", ¤t_material.specular.x, + // ¤t_material.specular.y, + // ¤t_material.specular.z); + // } else if (strcmp(line_header, "Ns") == 0) { + // // specular exponent + // sscanf(pch + offset, "%f", ¤t_material.spec_exponent); + // } else if (strcmp(line_header, "map_Kd") == 0) { + // char diffuse_map_filename[1024]; + // sscanf(pch + offset, "%s", diffuse_map_filename); + // char diffuse_map_path[1024]; + // snprintf(diffuse_map_path, sizeof(diffuse_map_path), "%s/%s", relative_path.buf, + // diffuse_map_filename); + // printf("load from %s\n", diffuse_map_path); + + // // -------------- + // texture diffuse_texture = texture_data_load(diffuse_map_path, true); + // current_material.diffuse_texture = diffuse_texture; + // strcpy(current_material.diffuse_tex_path, diffuse_map_path); + // texture_data_upload(¤t_material.diffuse_texture); + // // -------------- + // } else if (strcmp(line_header, "map_Ks") == 0) { + // // char specular_map_path[1024] = "assets/"; + // // sscanf(pch + offset, "%s", specular_map_path + 7); + // char specular_map_filename[1024]; + // sscanf(pch + offset, "%s", specular_map_filename); + // char specular_map_path[1024]; + // snprintf(specular_map_path, sizeof(specular_map_path), "%s/%s", relative_path.buf, + // specular_map_filename); + // printf("load from %s\n", specular_map_path); + // // -------------- + // texture specular_texture = texture_data_load(specular_map_path, true); + // current_material.specular_texture = specular_texture; + // strcpy(current_material.specular_tex_path, specular_map_path); + // texture_data_upload(¤t_material.specular_texture); + // // -------------- + // } else if (strcmp(line_header, "map_Bump") == 0) { + // // TODO + // } + + // pch = strtok_r(NULL, "\n", &saveptr); + // } + + // TRACE("end load material lib"); + + // // last mesh or if one wasnt created with 'o' directive + // // TRACE("Last leftover material"); + // material_darray_push(materials, current_material); + + // INFO("Loaded %ld materials", material_darray_len(materials)); TRACE("END load material lib"); return true; } diff --git a/src/scene.c b/src/scene.c new file mode 100644 index 0000000..d9fea05 --- /dev/null +++ b/src/scene.c @@ -0,0 +1,56 @@ +#include "scene.h" +#include "core.h" +#include "log.h" +#include "maths.h" +#include "render_types.h" + +extern core g_core; + +void scene_init(scene *s) { + memset(s, 0, sizeof(scene)); + s->renderables = render_entity_darray_new(10); + // default camera position - moved slightly along Z axis looking at 0,0,0 + vec3 cam_pos = vec3_create(0, 0, -5); + s->camera = camera_create(cam_pos, vec3_negate(cam_pos), VEC3_Y, deg_to_rad(45.0)); +} +void scene_free(scene *s) { render_entity_darray_free(s->renderables); } + +void scene_set_dir_light(directional_light light) { g_core.default_scene.dir_light = light; } +void scene_add_point_light(point_light light) { + scene s = g_core.default_scene; + if (s.point_lights_count == 4) { + WARN("Already 4 point lights, we can't add more."); + } else { + s.point_lights[s.point_lights_count] = light; + s.point_lights_count++; + } +} +void scene_add_model(model_handle model, transform3d transform) { + render_entity renderable = { .model = model, .tf = transform }; + render_entity_darray_push(g_core.default_scene.renderables, renderable); +} + +bool scene_remove_model(model_handle model) { + scene s = g_core.default_scene; + for (u32 i = 0; i <= s.renderables->len; i++) { + if (s.renderables->data[i].model.raw == model.raw) { + // TODO: add remove function to darray + } + } + return true; +} + +void scene_set_model_transform(model_handle model, transform3d new_transform) { + scene s = g_core.default_scene; + for (u32 i = 0; i <= s.renderables->len; i++) { + if (s.renderables->data[i].model.raw == model.raw) { + s.renderables->data[i].tf = new_transform; + } + } +} + +void scene_set_camera(vec3 pos, vec3 front) { + scene s = g_core.default_scene; + s.camera.position = pos; + s.camera.front = front; +} diff --git a/src/scene.h b/src/scene.h new file mode 100644 index 0000000..5ac7542 --- /dev/null +++ b/src/scene.h @@ -0,0 +1,54 @@ +/** + * @file scene.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once +#include "camera.h" +#include "defines.h" +#include "maths_types.h" +#include "render_types.h" + +typedef struct scene { + // camera + camera camera; + // lights + directional_light dir_light; + point_light point_lights[4]; + size_t point_lights_count; + // geometry + render_entity_darray* renderables; + // TODO: tree - transform_hierarchy +} scene; + +void scene_init(scene* s); +void scene_free(scene* s); + +// Simplified API - no scene pointer; gets and sets global scene + +// Add/Remove objects from the scene +/* vec3 direction; */ +/* vec3 ambient; */ +/* vec3 diffuse; */ +/* vec3 specular; */ +void scene_set_dir_light(directional_light light); +void _scene_set_dir_light(vec3 ambient, vec3 diffuse, vec3 specular, vec3 direction); + +void scene_add_point_light(point_light light); +void scene_add_model(model_handle model, transform3d transform); +bool scene_remove_model(model_handle model); + +// Getter & Setters +void scene_set_model_transform(model_handle model, transform3d new_transform); +void scene_set_camera(vec3 pos, vec3 front); + +/* // There can only be one heightmap terrain at a time right now. */ +/* bool scene_add_heightmap(scene* s /\* TODO *\/); */ +/* bool scene_delete_heightmap(scene* s); */ + +// TODO: functions to load and save scenes from disk diff --git a/src/std/buf.h b/src/std/buf.h new file mode 100644 index 0000000..de093ec --- /dev/null +++ b/src/std/buf.h @@ -0,0 +1,17 @@ +/** + * @file buf.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-28 + * + * @copyright Copyright (c) 2024 + * + */ +#pragma once +#include "defines.h" + +typedef struct bytebuffer { + u8* buf; + size_t size; +} bytebuffer; diff --git a/src/std/containers/darray.h b/src/std/containers/darray.h index 25bf846..b15d269 100644 --- a/src/std/containers/darray.h +++ b/src/std/containers/darray.h @@ -5,6 +5,11 @@ */ // COPIED FROM KITC WITH SOME MINOR ADJUSTMENTS +/* TODO: + - a 'find' function that takes a predicate (maybe wrap with a macro so we dont have to define a + new function?) +*/ + #ifndef KITC_TYPED_ARRAY_H #define KITC_TYPED_ARRAY_H @@ -39,15 +44,17 @@ /* } else {\ */ /* }\ */ -#define KITC_DECL_TYPED_ARRAY(T) \ - typedef typed_array(T) T##_darray; \ - typedef typed_array_iterator(T) T##_darray_iter; \ +#define KITC_DECL_TYPED_ARRAY(T) DECL_TYPED_ARRAY(T, T) + +#define DECL_TYPED_ARRAY(T, Type) \ + typedef typed_array(T) Type##_darray; \ + typedef typed_array_iterator(Type) Type##_darray_iter; \ \ /* Create a new one growable array */ \ - PREFIX T##_darray *T##_darray_new(size_t starting_capacity) { \ - T##_darray *d; \ + PREFIX Type##_darray *Type##_darray_new(size_t starting_capacity) { \ + Type##_darray *d; \ T *data; \ - d = malloc(sizeof(T##_darray)); \ + d = malloc(sizeof(Type##_darray)); \ data = malloc(starting_capacity * sizeof(T)); \ \ d->len = 0; \ @@ -57,14 +64,14 @@ return d; \ } \ \ - PREFIX void T##_darray_free(T##_darray *d) { \ + PREFIX void Type##_darray_free(Type##_darray *d) { \ if (d != NULL) { \ free(d->data); \ free(d); \ } \ } \ \ - PREFIX T *T##_darray_resize(T##_darray *d, size_t capacity) { \ + PREFIX T *Type##_darray_resize(Type##_darray *d, size_t capacity) { \ /* resize the internal data block */ \ T *new_data = realloc(d->data, sizeof(T) * capacity); \ /* TODO: handle OOM error */ \ @@ -74,22 +81,22 @@ return new_data; \ } \ \ - PREFIX void T##_darray_push(T##_darray *d, T value) { \ + PREFIX void Type##_darray_push(Type##_darray *d, T value) { \ if (d->len >= d->capacity) { \ size_t new_capacity = \ d->capacity > 0 ? d->capacity * DARRAY_RESIZE_FACTOR : DARRAY_DEFAULT_CAPACITY; \ - T *resized = T##_darray_resize(d, new_capacity); \ + T *resized = Type##_darray_resize(d, new_capacity); \ } \ \ d->data[d->len] = value; \ d->len += 1; \ } \ \ - PREFIX void T##_darray_push_copy(T##_darray *d, const T *value) { \ + PREFIX void Type##_darray_push_copy(Type##_darray *d, const T *value) { \ if (d->len >= d->capacity) { \ size_t new_capacity = \ d->capacity > 0 ? d->capacity * DARRAY_RESIZE_FACTOR : DARRAY_DEFAULT_CAPACITY; \ - T *resized = T##_darray_resize(d, new_capacity); \ + T *resized = Type##_darray_resize(d, new_capacity); \ } \ \ T *place = d->data + d->len; \ @@ -97,18 +104,18 @@ memcpy(place, value, sizeof(T)); \ } \ \ - PREFIX void T##_darray_pop(T##_darray *d, T *dest) { \ + PREFIX void Type##_darray_pop(Type##_darray *d, T *dest) { \ T *item = d->data + (d->len - 1); \ d->len -= 1; \ memcpy(dest, item, sizeof(T)); \ } \ \ - PREFIX void T##_darray_ins(T##_darray *d, const T *value, size_t index) { \ + PREFIX void Type##_darray_ins(Type##_darray *d, const T *value, size_t index) { \ /* check if requires resize */ \ if (d->len + 1 > d->capacity) { \ size_t new_capacity = \ d->capacity > 0 ? d->capacity * DARRAY_RESIZE_FACTOR : DARRAY_DEFAULT_CAPACITY; \ - T *resized = T##_darray_resize(d, new_capacity); \ + T *resized = Type##_darray_resize(d, new_capacity); \ } \ \ /* shift existing data after index */ \ @@ -122,14 +129,14 @@ memcpy(insert_dest, value, sizeof(T)); \ } \ \ - PREFIX void T##_darray_clear(T##_darray *d) { \ + PREFIX void Type##_darray_clear(Type##_darray *d) { \ d->len = 0; \ memset(d->data, 0, d->capacity * sizeof(T)); \ } \ \ - PREFIX size_t T##_darray_len(T##_darray *d) { return d->len; } \ + PREFIX size_t Type##_darray_len(Type##_darray *d) { return d->len; } \ \ - PREFIX void T##_darray_print(T##_darray *d) { \ + PREFIX void Type##_darray_print(Type##_darray *d) { \ printf("len: %zu ", d->len); \ printf("capacity: %zu\n", d->capacity); \ for (int i = 0; i < d->len; i++) { \ @@ -137,14 +144,14 @@ } \ } \ \ - PREFIX T##_darray_iter T##_darray_iter_new(T##_darray *d) { \ - T##_darray_iter iterator; \ + PREFIX Type##_darray_iter Type##_darray_iter_new(Type##_darray *d) { \ + Type##_darray_iter iterator; \ iterator.array = d; \ iterator.current_idx = 0; \ return iterator; \ } \ \ - PREFIX void *T##_darray_iter_next(T##_darray_iter *iterator) { \ + PREFIX void *Type##_darray_iter_next(Type##_darray_iter *iterator) { \ if (iterator->current_idx < iterator->array->len) { \ return &iterator->array->data[iterator->current_idx++]; \ } else { \ diff --git a/src/std/containers/graphs.h b/src/std/containers/graphs.h new file mode 100644 index 0000000..5dbec97 --- /dev/null +++ b/src/std/containers/graphs.h @@ -0,0 +1,14 @@ +/** + * @file graphs.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ + +// Adjacency list backed graphs + +// Matrix backed graphs (not as useful)
\ No newline at end of file diff --git a/src/std/containers/hashset.h b/src/std/containers/hashset.h new file mode 100644 index 0000000..d153fd2 --- /dev/null +++ b/src/std/containers/hashset.h @@ -0,0 +1,10 @@ +/** + * @file hashset.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */
\ No newline at end of file diff --git a/src/std/containers/hashtable.h b/src/std/containers/hashtable.h new file mode 100644 index 0000000..f5d98e7 --- /dev/null +++ b/src/std/containers/hashtable.h @@ -0,0 +1,10 @@ +/** + * @file hashtable.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */
\ No newline at end of file diff --git a/src/std/mem.c b/src/std/mem.c index 00f9c39..a5321fb 100644 --- a/src/std/mem.c +++ b/src/std/mem.c @@ -1,13 +1,17 @@ -#include "mem.h" +#include <assert.h> #include <stddef.h> #include <stdint.h> #include <string.h> + #include "log.h" +#include "mem.h" #ifndef DEFAULT_ALIGNMENT #define DEFAULT_ALIGNMENT (2 * sizeof(void*)) #endif +// --- Arena + void* arena_alloc_align(arena* a, size_t size, size_t align) { ptrdiff_t padding = -(uintptr_t)a->curr & (align - 1); ptrdiff_t available = a->end - a->curr - padding; @@ -15,7 +19,7 @@ void* arena_alloc_align(arena* a, size_t size, size_t align) { if (available < 0 || (ptrdiff_t)size > available) { ERROR_EXIT("Arena ran out of memory\n"); } - void* p = a->begin + padding; + void* p = a->curr + padding; a->curr += padding + size; return memset(p, 0, size); } @@ -31,4 +35,91 @@ void arena_free_all(arena* a) { a->curr = a->begin; // pop everything at once and reset to the start. } -void arena_free_storage(arena* a) { free(a->begin); }
\ No newline at end of file +void arena_free_storage(arena* a) { free(a->begin); } + +arena_save arena_savepoint(arena* a) { + arena_save savept = { .arena = a, .savepoint = a->curr }; + return savept; +} + +void arena_rewind(arena_save savepoint) { savepoint.arena->curr = savepoint.savepoint; } + +// --- Pool + +void_pool void_pool_create(arena* a, u64 capacity, u64 entry_size) { + size_t memory_requirements = capacity * entry_size; + void* backing_buf = arena_alloc(a, memory_requirements); + + void_pool pool = { .capacity = capacity, + .entry_size = entry_size, + .count = 0, + .backing_buffer = backing_buf, + .free_list_head = NULL }; + + void_pool_free_all(&pool); + + return pool; +} + +void void_pool_free_all(void_pool* pool) { + // set all entries to be free + for (u64 i = 0; i < pool->capacity; i++) { + void* ptr = &pool->backing_buffer[i * pool->entry_size]; + void_pool_header* free_node = + (void_pool_header*)ptr; // we reuse the actual entry itself to hold the header + if (i == (pool->capacity - 1)) { + // if the last one we make its next pointer NULL indicating its full + free_node->next = NULL; + } + free_node->next = pool->free_list_head; + // now the head points to this entry + pool->free_list_head = free_node; + } +} + +void* void_pool_get(void_pool* pool, u32 raw_handle) { + // An handle is an index into the array essentially + void* ptr = pool->backing_buffer + (raw_handle * pool->entry_size); + return ptr; +} + +void* void_pool_alloc(void_pool* pool, u32* out_raw_handle) { + // get the next free node + if (pool->count == pool->capacity) { + WARN("Pool is full!"); + return NULL; + } + if (pool->free_list_head == NULL) { + ERROR("Pool is full (head = null)"); + return NULL; + } + void_pool_header* free_node = pool->free_list_head; + + // What index does this become? + uintptr_t start = (uintptr_t)pool->backing_buffer; + uintptr_t cur = (uintptr_t)free_node; + TRACE("%ld %ld ", start, cur); + /* assert(cur > start); */ + u32 index = (u32)((cur - start) / pool->entry_size); + printf("Index %d\n", index); + if (out_raw_handle != NULL) { + *out_raw_handle = index; + } + + pool->free_list_head = free_node->next; + + memset(free_node, 0, pool->entry_size); + pool->count++; + return (void*)free_node; +} + +void void_pool_dealloc(void_pool* pool, u32 raw_handle) { + // push free node back onto the free list + void* ptr = void_pool_get(pool, raw_handle); + void_pool_header* freed_node = (void_pool_header*)ptr; + + freed_node->next = pool->free_list_head; + pool->free_list_head = freed_node; + + pool->count--; +} diff --git a/src/std/mem.h b/src/std/mem.h index 2f92894..26da778 100644 --- a/src/std/mem.h +++ b/src/std/mem.h @@ -10,6 +10,9 @@ #pragma once #include <stddef.h> +#include "defines.h" + +// --- Arena // Inspired by https://nullprogram.com/blog/2023/09/27/ typedef struct arena { @@ -18,9 +21,61 @@ typedef struct arena { char* end; } arena; +typedef struct arena_save { + arena* arena; + char* savepoint; +} arena_save; + arena arena_create(void* backing_buffer, size_t capacity); void* arena_alloc(arena* a, size_t size); void* arena_alloc_align(arena* a, size_t size, size_t align); void arena_free_all(arena* a); void arena_free_storage(arena* a); -// TODO: arena_resize
\ No newline at end of file +arena_save arena_savepoint(arena* a); +void arena_rewind(arena_save savepoint); +// TODO: arena_resize + +// --- Pool + +typedef struct void_pool_header void_pool_header; +struct void_pool_header { + void_pool_header* next; +}; + +typedef struct void_pool { + u64 capacity; + u64 entry_size; + u64 count; + void* backing_buffer; + void_pool_header* free_list_head; +} void_pool; + +void_pool void_pool_create(arena* a, u64 capacity, u64 entry_size); +void void_pool_free_all(void_pool* pool); +bool void_pool_is_empty(void_pool* pool); +bool void_pool_is_full(void_pool* pool); +void* void_pool_get(void_pool* pool, u32 raw_handle); +void* void_pool_alloc(void_pool* pool, u32* out_raw_handle); +void void_pool_dealloc(void_pool* pool, u32 raw_handle); + +// TODO: macro that lets us specialise + +/* typedef struct Name##_handle Name##_handle; \ */ +#define TYPED_POOL(T, Name) \ + typedef struct Name##_pool { \ + void_pool inner; \ + } Name##_pool; \ + \ + static Name##_pool Name##_pool_create(arena* a, u64 cap, u64 entry_size) { \ + void_pool p = void_pool_create(a, cap, entry_size); \ + return (Name##_pool){ .inner = p }; \ + } \ + static inline T* Name##_pool_get(Name##_pool* pool, Name##_handle handle) { \ + return (T*)void_pool_get(&pool->inner, handle.raw); \ + } \ + static inline T* Name##_pool_alloc(Name##_pool* pool, Name##_handle* out_handle) { \ + return (T*)void_pool_alloc(&pool->inner, &out_handle->raw); \ + } \ + static inline void Name##_pool_dealloc(Name##_pool* pool, Name##_handle handle) { \ + void_pool_dealloc(&pool->inner, handle.raw); \ + }\ diff --git a/src/std/utils.h b/src/std/utils.h new file mode 100644 index 0000000..c9827a3 --- /dev/null +++ b/src/std/utils.h @@ -0,0 +1,4 @@ +#pragma once +#include <stdbool.h> + +const char* bool_str(bool input) { return input ? "True" : "False"; }
\ No newline at end of file diff --git a/src/systems/input.c b/src/systems/input.c index 292d438..0c8f768 100644 --- a/src/systems/input.c +++ b/src/systems/input.c @@ -1,11 +1,17 @@ #include "input.h" +#include <assert.h> #include <glfw3.h> +#include <string.h> #include "log.h" +static input_state *g_input; // Use a global to simplify caller code + bool input_system_init(input_state *input, GLFWwindow *window) { INFO("Input init"); + memset(input, 0, sizeof(input_state)); + input->window = window; // Set everything to false. Could just set memory to zero but where's the fun in that for (int i = 0; i < KEYCODE_MAX; i++) { @@ -14,10 +20,19 @@ bool input_system_init(input_state *input, GLFWwindow *window) { input->just_released_keys[i] = false; } + g_input = input; + + assert(input->mouse.x_delta == 0); + assert(input->mouse.y_delta == 0); + + INFO("Finish input init"); return true; } +void input_system_shutdown(input_state *input) {} + void input_update(input_state *input) { + glfwPollEvents(); // --- update keyboard input // if we go from un-pressed -> pressed, set as "just pressed" @@ -75,3 +90,9 @@ void input_update(input_state *input) { input->mouse = new_mouse_state; } + +bool key_is_pressed(keycode key) { return g_input->depressed_keys[key]; } + +bool key_just_pressed(keycode key) { return g_input->just_pressed_keys[key]; } + +bool key_just_released(keycode key) { return g_input->just_released_keys[key]; }
\ No newline at end of file diff --git a/src/systems/keys.h b/src/systems/keys.h index 090bb49..a76e101 100644 --- a/src/systems/keys.h +++ b/src/systems/keys.h @@ -2,5 +2,18 @@ typedef enum keycode { // TODO: add all keycodes - KEYCODE_MAX + KEYCODE_SPACE = 32, + KEYCODE_A = 65, + KEYCODE_D = 68, + KEYCODE_S = 83, + KEYCODE_W = 87, + KEYCODE_ESCAPE = 256, + KEYCODE_ENTER = 257, + KEYCODE_TAB = 258, + KEYCODE_BACKSPACE = 259, + KEYCODE_KEY_RIGHT = 262, + KEYCODE_KEY_LEFT = 263, + KEYCODE_KEY_DOWN = 264, + KEYCODE_KEY_UP = 265, + KEYCODE_MAX = 348 } keycode;
\ No newline at end of file diff --git a/src/systems/screenspace.h b/src/systems/screenspace.h index 2250847..5f0c579 100644 --- a/src/systems/screenspace.h +++ b/src/systems/screenspace.h @@ -25,7 +25,7 @@ struct draw_circle { /** @brief Tagged union that represents a UI shape to be drawn. */ typedef struct draw_cmd { - enum { RECT, CIRCLE } draw_cmd_type; + enum { DRAW_RECT, CIRCLE } draw_cmd_type; union { struct draw_rect rect; struct draw_circle circle; @@ -37,7 +37,7 @@ KITC_DECL_TYPED_ARRAY(draw_cmd) typedef struct screenspace_state { u32 rect_vbo; u32 rect_vao; - shader rect_shader; + // shader rect_shader; draw_cmd_darray* draw_cmd_buf; } screenspace_state; diff --git a/src/systems/terrain.c b/src/systems/terrain.c new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/src/systems/terrain.c diff --git a/src/systems/terrain.h b/src/systems/terrain.h new file mode 100644 index 0000000..bfd90b5 --- /dev/null +++ b/src/systems/terrain.h @@ -0,0 +1,55 @@ +/** + * @file terrain.h + * @author your name (you@domain.com) + * @brief + * @version 0.1 + * @date 2024-04-27 + * + * @copyright Copyright (c) 2024 + * + */ + +/* +Future: + - Chunked terrain + - Dynamic LOD +*/ + +#include "defines.h" +#include "maths_types.h" +#include "mem.h" +#include "render_types.h" +#include "str.h" + +typedef struct heightmap { + str8 filepath; + u32x2 size; + void* image_data; + bool is_uploaded; +} heightmap; + +typedef struct terrain_state { + arena terrain_allocator; + heightmap* heightmap; // NULL = no heightmap +} terrain_state; + +bool terrain_system_init(terrain_state* state); +void terrain_system_shutdown(terrain_state* state); +void terrain_system_render_hmap(renderer* rend, terrain_state* state); + +heightmap heightmap_from_image(str8 filepath); +heightmap heightmap_from_perlin(/* TODO: perlin noise generation parameters */); + +/** @brief Get the height (the Y component) for a vertex at a particular coordinate in the heightmap + */ +f32 heightmap_height_at_xz(heightmap* hmap, f32 x, f32 z); + +/** @brief Calculate the normal vector of a vertex at a particular coordinate in the heightmap */ +vec3 heightmap_normal_at_xz(heightmap* hmap, f32 x, f32 z); + +/** @brief Generate the `geometry_data` for a heightmap ready to be uploaded to the GPU */ +geometry_data geo_heightmap(arena* a, heightmap heightmap); + +// somewhere there will be an easy way to add a heightmap + +// scene_add_heightmap
\ No newline at end of file diff --git a/src/systems/text.h b/src/systems/text.h index 19248a6..f40cfd6 100644 --- a/src/systems/text.h +++ b/src/systems/text.h @@ -7,6 +7,7 @@ #include "darray.h" #include "defines.h" +#include "ral.h" #include "render_types.h" struct core; @@ -29,7 +30,7 @@ KITC_DECL_TYPED_ARRAY(draw_text_packet) typedef struct text_system_state { font default_font; - shader glyph_shader; + shader_handle glyph_shader; u32 glyph_vbo; u32 glyph_vao; draw_text_packet_darray *draw_cmd_buf; diff --git a/src/transform_hierarchy.c b/src/transform_hierarchy.c index f1c859a..2f2ff01 100644 --- a/src/transform_hierarchy.c +++ b/src/transform_hierarchy.c @@ -11,7 +11,7 @@ #include "log.h" #include "maths.h" #include "maths_types.h" -#include "render_types.h" +// #include "render_types.h" struct transform_hierarchy { transform_node root; diff --git a/src/transform_hierarchy.h b/src/transform_hierarchy.h index af77ee1..0921c19 100644 --- a/src/transform_hierarchy.h +++ b/src/transform_hierarchy.h @@ -4,6 +4,7 @@ #pragma once #include "maths_types.h" +#include "ral.h" #include "render_types.h" #define MAX_TF_NODE_CHILDREN \ diff --git a/tests/pool_test_runner.c b/tests/pool_test_runner.c new file mode 100644 index 0000000..a6eff69 --- /dev/null +++ b/tests/pool_test_runner.c @@ -0,0 +1,12 @@ +#include "unity.h" +#include "unity_fixture.h" + +TEST_GROUP_RUNNER(Pool) { + // TODO: test cases + RUN_TEST_CASE(Pool, Initialisation); + RUN_TEST_CASE(Pool, TypedPool); +} + +static void RunAllTests(void) { RUN_TEST_GROUP(Pool); } + +int main(int argc, const char* argv[]) { return UnityMain(argc, argv, RunAllTests); } diff --git a/tests/pool_tests.c b/tests/pool_tests.c new file mode 100644 index 0000000..df65773 --- /dev/null +++ b/tests/pool_tests.c @@ -0,0 +1,72 @@ +#include <stdbool.h> +#include <stdlib.h> +#include "defines.h" +#include "unity.h" +#include "unity_fixture.h" + +#include "mem.h" + +#define ARENA_SIZE (1024 * 1024) + +static arena a; + +TEST_GROUP(Pool); + +TEST_SETUP(Pool) { a = arena_create(malloc(ARENA_SIZE), ARENA_SIZE); } + +TEST_TEAR_DOWN(Pool) { arena_free_all(&a); } + +TEST(Pool, SanityCheckTest) { TEST_ASSERT_EQUAL(true, true); } + +TEST(Pool, Initialisation) { + // u32 pool + void_pool pool = void_pool_create(&a, 256, sizeof(u32)); + u32 x_handle; + u32* x_ptr = (u32*)void_pool_alloc(&pool, &x_handle); + // store something in it + *x_ptr = 1024; + u32* x = void_pool_get(&pool, x_handle); + + TEST_ASSERT_EQUAL_UINT32(1024, *x); + /* TEST_ASSERT_EQUAL_MEMORY(&expected, &actual, sizeof(vec3)); */ +} + +typedef struct foo { + u32 a; + f32 b; + char c; +} foo; + +CORE_DEFINE_HANDLE(bar); +typedef struct bar_handle { + u32 raw; +} bar_handle; +TYPED_POOL(foo, bar); + +TEST(Pool, TypedPool) { + printf("Typed pool test\n"); + // create pool + bar_pool pool = bar_pool_create(&a, 2, sizeof(foo)); + + bar_handle first_handle, second_handle, third_handle; + foo* first = bar_pool_alloc(&pool, &first_handle); + foo* second = bar_pool_alloc(&pool, &second_handle); + // Third one shouldnt work + foo* third = bar_pool_alloc(&pool, &third_handle); + TEST_ASSERT_NULL(third); + + first->a = 32; + first->b = 2.0; + first->c = 'X'; + + foo* my_foo = bar_pool_get(&pool, first_handle); + TEST_ASSERT_EQUAL_UINT32(32, my_foo->a); + TEST_ASSERT_EQUAL(2.0, my_foo->b); + TEST_ASSERT_EQUAL_CHAR('X', my_foo->c); + + bar_pool_dealloc(&pool, first_handle); + + // next alloc should succeed + third = bar_pool_alloc(&pool, &third_handle); + TEST_ASSERT_NOT_NULL(third); +} @@ -4,8 +4,6 @@ set_config("cc", "gcc") add_rules("mode.debug", "mode.release") -- we have two modes: debug & release -add_syslinks("m") -- these are must have when compiling - -- -Wall : base set of warnings -- -Wextra : additional warnings not covered by -Wall -- -Wundef : undefined macros @@ -14,6 +12,7 @@ add_cflags("-Wall", "-Wextra", "-Wundef", "-Wdouble-promotion") if is_mode("debug") then add_cflags("-g") -- Add debug symbols in debug mode + add_defines("CDEBUG") elseif is_mode("release") then add_defines("CRELEASE") end @@ -22,9 +21,13 @@ end -- Platform defines and system packages if is_plat("linux") then add_defines("CEL_PLATFORM_LINUX") - add_syslinks("dl", "X11", "pthread") + add_syslinks("vulkan", "dl", "X11", "pthread") elseif is_plat("windows") then add_defines("CEL_PLATFORM_WINDOWS") + add_syslinks("user32", "gdi32", "kernel32", "shell32") + add_requires("vulkansdk", {system=true}) + + -- add_links("pthreadVC2-w64") elseif is_plat("macosx") then add_defines("CEL_PLATFORM_MAC") add_frameworks("Cocoa", "IOKit", "CoreVideo", "OpenGL") @@ -53,8 +56,10 @@ add_requires("local_glfw") local core_sources = { "deps/glad/src/glad.c", "src/*.c", - "src/logos/*.c", + -- "src/logos/*.c", + "src/maths/*.c", "src/platform/*.c", + "src/physics/*.c", "src/renderer/*.c", "src/renderer/backends/*.c", "src/resources/*.c", @@ -63,10 +68,37 @@ local core_sources = { "src/systems/*.c", } +local unity_sources = { + "deps/Unity/src/unity.c", + "deps/Unity/extras/fixture/src/unity_fixture.c", + "deps/Unity/extras/memory/src/unity_memory.c", +} + +rule("compile_glsl_vert_shaders") + set_extensions(".vert") + on_buildcmd_file(function (target, batchcmds, sourcefile, opt) + local targetfile = path.join(target:targetdir(), path.basename(sourcefile) .. ".vert.spv") + + print("Compiling shader: %s to %s", sourcefile, targetfile) + batchcmds:vrunv('glslc', {sourcefile, "-o", targetfile}) + -- batchcmds:add_depfiles(sourcefile) +end) +rule("compile_glsl_frag_shaders") + set_extensions(".frag") + on_buildcmd_file(function (target, batchcmds, sourcefile, opt) + local targetfile = path.join(target:targetdir(), path.basename(sourcefile) .. ".frag.spv") + + print("Compiling shader: %s to %s", sourcefile, targetfile) + batchcmds:vrunv('glslc', {sourcefile, "-o", targetfile}) + -- batchcmds:add_depfiles(sourcefile) +end) +-- TODO: Metal shaders compilation + +-- + -- common configuration for both static and shared libraries target("core_config") set_kind("static") -- kind is required but you can ignore it since it's just for common settings - add_syslinks("dl") add_packages("local_glfw") add_includedirs("deps/cgltf", {public = true}) add_includedirs("deps/glfw-3.3.8/include/GLFW", {public = true}) @@ -75,9 +107,10 @@ target("core_config") add_includedirs("deps/stb_image_write", {public = true}) add_includedirs("deps/stb_truetype", {public = true}) add_includedirs("src/", {public = true}) - add_includedirs("src/logos/", {public = true}) + -- add_includedirs("src/logos/", {public = true}) add_includedirs("src/maths/", {public = true}) add_includedirs("src/platform/", {public = true}) + add_includedirs("src/physics/", {public = true}) add_includedirs("src/renderer/", {public = true}) add_includedirs("src/renderer/backends/", {public = true}) add_includedirs("src/resources/", {public = true}) @@ -85,6 +118,18 @@ target("core_config") add_includedirs("src/std/containers", {public = true}) add_includedirs("src/systems/", {public = true}) add_files("src/empty.c") -- for some reason we need this on Mac so it doesnt call 'ar' with no files and error + add_rules("compile_glsl_vert_shaders") + add_rules("compile_glsl_frag_shaders") + add_files("assets/shaders/triangle.vert") + add_files("assets/shaders/triangle.frag") + add_files("assets/shaders/cube.vert") + add_files("assets/shaders/cube.frag") + -- add_files("assets/shaders/*.frag") + if is_plat("windows") then + add_includedirs("$(env VULKAN_SDK)/Include", {public = true}) + add_linkdirs("$(env VULKAN_SDK)/Lib", {public = true}) + add_links("vulkan-1") + end set_default(false) -- prevents standalone building of this target target("core_static") @@ -92,50 +137,113 @@ target("core_static") add_deps("core_config") -- inherit common configurations set_policy("build.merge_archive", true) add_files(core_sources) + -- Link against static CRT + if is_plat("windows") then + add_links("libcmt", "legacy_stdio_definitions") -- for release builds + add_links("libcmtd", "legacy_stdio_definitions") -- for debug builds + end target("core_shared") set_kind("shared") add_deps("core_config") -- inherit common configurations add_files(core_sources) - -target("main_loop") - set_kind("binary") - set_group("examples") - add_deps("core_shared") - add_files("examples/main_loop/ex_main_loop.c") - set_rundir("$(projectdir)") - -target("std") + -- Link against dynamic CRT + if is_plat("windows") then + add_links("msvcrt", "legacy_stdio_definitions") -- for release builds + add_links("msvcrtd", "legacy_stdio_definitions") -- for debug builds + end + +-- target("main_loop") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/main_loop/ex_main_loop.c") +-- set_rundir("$(projectdir)") + +target("tri") set_kind("binary") set_group("examples") add_deps("core_static") - add_files("examples/standard_lib/ex_std.c") + add_files("examples/triangle/ex_triangle.c") set_rundir("$(projectdir)") -target("obj") +target("cube") set_kind("binary") set_group("examples") add_deps("core_static") - add_files("examples/obj_loading/ex_obj_loading.c") + add_files("examples/cube/ex_cube.c") set_rundir("$(projectdir)") -target("gltf") +-- target("std") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/standard_lib/ex_std.c") +-- set_rundir("$(projectdir)") + +-- target("obj") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/obj_loading/ex_obj_loading.c") +-- set_rundir("$(projectdir)") + +-- target("input") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/input/ex_input.c") +-- set_rundir("$(projectdir)") + +-- target("gltf") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/gltf_loading/ex_gltf_loading.c") +-- set_rundir("$(projectdir)") + +-- target("transforms") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_shared") +-- add_files("examples/transforms/ex_transforms.c") +-- set_rundir("$(projectdir)") + +-- target("animation") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_shared") +-- add_files("examples/property_animation/ex_property_animation.c") +-- set_rundir("$(projectdir)") + +-- target("skinned") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_shared") +-- add_files("examples/skinned_animation/ex_skinned_animation.c") +-- set_rundir("$(projectdir)") + +-- target("input") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/input/ex_input.c") +-- set_rundir("$(projectdir)") + +-- target("demo") +-- set_kind("binary") +-- set_group("examples") +-- add_deps("core_static") +-- add_files("examples/demo/demo.c") +-- set_rundir("$(projectdir)") + +target("pool_tests") set_kind("binary") - set_group("examples") + set_group("tests") add_deps("core_static") - add_files("examples/gltf_loading/ex_gltf_loading.c") - set_rundir("$(projectdir)") - -target("transforms") - set_kind("binary") - set_group("examples") - add_deps("core_shared") - add_files("examples/transforms/ex_transforms.c") - set_rundir("$(projectdir)") - -target("demo") - set_kind("binary") - set_group("examples") - add_deps("core_static") - add_files("examples/demo/demo.c") - set_rundir("$(projectdir)") + add_files(unity_sources) + add_includedirs("deps/Unity/src", {public = true}) + add_includedirs("deps/Unity/extras/fixture/src", {public = true}) + add_includedirs("deps/Unity/extras/memory/src", {public = true}) + add_files("tests/pool_tests.c") + add_files("tests/pool_test_runner.c") |
