wip shader layouts for common stuff

2 files changed, 0 insertions, 365 deletions

diff --git a/src/render/ral.h b/src/render/ral.h
deleted file mode 100644
index fc3c96c..0000000
--- a/src/render/ral.h
+++ /dev/null
@@ -1,184 +0,0 @@
-/**
- * @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
-// #define MAX_PIPELINES 128
-// #define MAX_RENDERPASSES 128
-
-// TYPED_POOL(gpu_buffer, buffer);
-// TYPED_POOL(gpu_texture, texture);
-
-// TYPED_POOL(gpu_pipeline_layout, pipeline_layout);
-// TYPED_POOL(gpu_pipeline, pipeline);
-// TYPED_POOL(gpu_renderpass, renderpass);
-
-// // --- 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))
-
-// --- Pools
-// typedef struct gpu_backend_pools {
-//   pipeline_pool pipelines;
-//   pipeline_layout_pool pipeline_layouts;
-//   renderpass_pool renderpasses;
-// } gpu_backend_pools;
-// void backend_pools_init(arena* a, gpu_backend_pools* backend_pools);
-
-// struct resource_pools {
-//   buffer_pool buffers;
-//   texture_pool textures;
-// };
-// void resource_pools_init(arena* a, struct resource_pools* res_pools);
-
-// --- Pipeline description
-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;
-  bool is_combined_vert_frag;  // Contains both vertex and fragment stages
-} shader_desc;
-
-shader_desc shader_quick_load(const char* filepath);
-/** @brief Hot reloads shaders for the given pipeline. Returns how long it took in milliseconds */
-u64 gpu_pipeline_reload_shaders(gpu_pipeline* pipeline); // TODO
-
-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 {
-  bool default_framebuffer;
-  bool has_color_target;
-  texture_handle  color_target; // for now only support one
-  bool has_depth_stencil;
-  texture_handle  depth_stencil;
-} 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();
-
-/** @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);
-
-// --- 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, u64 count);
-void encode_draw_indexed(gpu_cmd_encoder* encoder, u64 index_count);
-void encode_clear_buffer(gpu_cmd_encoder* encoder, buffer_handle buf);
-
-// --- Buffers
-// --- 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();
-size_t vertex_attrib_size(vertex_attrib_type attr);
diff --git a/src/render/render_types.h b/src/render/render_types.h
deleted file mode 100644
index b25fa14..0000000
--- a/src/render/render_types.h
+++ /dev/null
@@ -1,181 +0,0 @@
-/**
- * @file render_types.h
- * @author your name (you@domain.com)
- * @brief
- * @version 0.1
- * @date 2024-04-27
- *
- * @copyright Copyright (c) 2024
- *
- */
-#pragma once
-
-#include "colours.h"
-#include "defines.h"
-#include "ral.h"
-#include "ral_types.h"
-#if defined(CEL_PLATFORM_WINDOWS)
-// #include "backend_dx11.h"
-#endif
-#if defined(CEL_REND_BACKEND_VULKAN)
-#include "backend_vulkan.h"
-#elif defined(CEL_REND_BACKEND_METAL)
-#include "backend_metal.h"
-#elif defined(CEL_REND_BACKEND_OPENGL)
-#include "backend_opengl.h"
-#endif
-
-struct GLFWwindow;
-
-typedef struct geometry_data {
-  vertex_format format;
-  vertex_darray* vertices;  // TODO: make it not a pointer
-  bool has_indices;
-  u32_darray* indices;
-  rgba colour; /** Optional: set vertex colours */
-} geometry_data;
-
-typedef struct u32_opt {
-  u32 value;
-  bool has_value;
-} u32_opt;
-
-// 'Upload' a geometry_data (to GPU) -> get back a mesh
-typedef struct mesh {
-  buffer_handle vertex_buffer;
-  buffer_handle index_buffer;
-  geometry_data* geometry;  // NULL means it has been freed
-  u32_opt material_index;
-  bool is_uploaded;
-  bool is_latent;
-} mesh;
-
-#ifndef TYPED_MESH_ARRAY
-KITC_DECL_TYPED_ARRAY(mesh)
-#define TYPED_MESH_ARRAY
-#endif
-
-/* 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 texture {
-} texture;
-
-typedef struct texture_data {
-  texture_desc description;
-  void* image_data;
-} texture_data;
-
-typedef enum material_kind {
-  MAT_BLINN_PHONG,
-  MAT_PBR,
-  MAT_PBR_PARAMS,  // uses float values to represent a surface uniformly
-  MAT_COUNT
-} material_kind;
-static const char* material_kind_names[] = { "Blinn Phong", "PBR (Textures)", "PBR (Params)",
-                                             "Count (This should be an error)" };
-
-typedef struct blinn_phong_material {
-  char name[256];
-  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;
-
-typedef struct pbr_parameters {
-  vec3 albedo;
-  f32 metallic;
-  f32 roughness;
-  f32 ao;
-} pbr_parameters;
-
-typedef struct pbr_material {
-  texture_handle albedo_map;
-  texture_handle normal_map;
-  bool metal_roughness_combined;
-  texture_handle metallic_map;
-  texture_handle roughness_map;
-  texture_handle ao_map;
-} pbr_material;
-
-typedef struct material {
-  material_kind kind;
-  union {
-    blinn_phong_material blinn_phong;
-    pbr_parameters pbr_params;
-    pbr_material pbr;
-  } mat_data;
-  char* name;
-} material;
-
-#ifndef TYPED_MATERIAL_ARRAY
-KITC_DECL_TYPED_ARRAY(material)
-#define TYPED_MATERIAL_ARRAY
-#endif
-
-CORE_DEFINE_HANDLE(model_handle);
-
-typedef struct model {
-  str8 name;
-  mesh_darray* meshes;
-  material_darray* materials;
-} model;
-
-TYPED_POOL(model, model)
-
-// FIXME: the default blinn-phong material. MUST be initialised with the function below
-// FIXME: extern material DEFAULT_MATERIAL;
-void default_material_init();
-
-#ifndef TYPED_MODEL_ARRAY
-KITC_DECL_TYPED_ARRAY(model)
-#define TYPED_MODEL_ARRAY
-#endif
-
-#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;
-  vec3 ambient;
-  vec3 diffuse;
-  vec3 specular;
-} point_light;
-
-typedef struct directional_light {
-  vec3 direction;
-  vec3 ambient;
-  vec3 diffuse;
-  vec3 specular;
-} directional_light;