Begin simplifying project structure and removing examples

6 files changed, 1 insertions, 429 deletions

diff --git a/examples/cube/ex_cube.c b/examples/cube/ex_cube.c
deleted file mode 100644
index 5a19f2c..0000000
--- a/examples/cube/ex_cube.c
+++ /dev/null
@@ -1,174 +0,0 @@
-#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;
-
-// Scene / light setup
-const vec3 pointlight_positions[4] = {
-  { -10.0, 10.0, 10.0 },
-  { 10.0, 10.0, 10.0 },
-  { -10.0, -10.0, 10.0 },
-  { 10.0, -10.0, 10.0 },
-};
-point_light point_lights[4];
-
-// 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 = "Matrices",
-                        .type = SHADER_BINDING_BYTES,
-                        .stores_data = has_data,
-                        .data = { .bytes = { .size = sizeof(mvp_uniforms) } } };
-
-  shader_binding b2 = { .label = "texSampler",
-                        .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);
-
-  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));
-
-  // This is how to do it manually; run `static_3d_vertex_description()` to get this built-in vertex
-  // format
-  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);
-  vertex_input.use_full_vertex_size = true;
-
-  shader_data mvp_uniforms_data = { .data = NULL, .shader_data_get_layout = &mvp_uniforms_layout };
-
-  gpu_renderpass_desc pass_description = { .default_framebuffer = true };
-  gpu_renderpass* renderpass = gpu_renderpass_create(&pass_description);
-
-  str8 vert_path, frag_path;
-#ifdef CEL_REND_BACKEND_OPENGL
-  vert_path = str8lit("assets/shaders/cube.vert");
-  frag_path = str8lit("assets/shaders/cube.frag");
-#else
-  vert_path = str8lit("build/linux/x86_64/debug/cube.vert.spv");
-  frag_path = str8lit("build/linux/x86_64/debug/cube.frag.spv");
-#endif
-  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);
-
-  static f32 theta = 0.0;
-
-  // 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);
-
-    theta += 0.01;
-    transform transform = { .position = vec3(-0.5, -0.5, -0.5),
-                            .rotation = quat_from_axis_angle(VEC3_Y, theta, true),
-                            .scale = 1.0 };
-    /* INFO("Swapchain dimensions x %d y %d", g_core.renderer.swapchain.dimensions.x,
-     * g_core.renderer.swapchain.dimensions.y); */
-
-    mat4 model = transform_to_mat(&transform);
-    mat4 view, proj;
-    camera_view_projection(&cam, 1000, 1000,
-                           /* g_core.renderer.swapchain.dimensions.x, */
-                           /* g_core.renderer.swapchain.dimensions.y, */
-                           &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
-    // draw_mesh(&cube, &model, &cam);
-    encode_set_vertex_buffer(enc, cube.vertex_buffer);
-    encode_set_index_buffer(enc, cube.index_buffer);
-    encode_draw_indexed(enc, cube.geometry->indices->len);
-
-    // 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();
-  }
-
-  renderer_shutdown(&g_core.renderer);
-
-  return 0;
-}
diff --git a/examples/gltf_loading/ex_gltf_loading.c b/examples/gltf_loading/ex_gltf_loading.c
deleted file mode 100644
index 85bb389..0000000
--- a/examples/gltf_loading/ex_gltf_loading.c
+++ /dev/null
@@ -1,88 +0,0 @@
-#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"
-#include "render_types.h"
-
-extern core g_core;
-
-#define MODEL_GET(h) (model_pool_get(&g_core.models, 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 },
-};
-point_light point_lights[4];
-
-int main() {
-  double currentFrame = glfwGetTime();
-  double lastFrame = currentFrame;
-  double deltaTime;
-
-  core_bringup();
-
-  model_handle helmet_handle =
-      model_load_gltf("assets/models/gltf/DamagedHelmet/glTF/DamagedHelmet.gltf", false);
-  INFO("GLTF loaded successfully!");
-  model* helmet = MODEL_GET(helmet_handle);
-
-  vec3 camera_pos = vec3(5., 0., 0.);
-  vec3 camera_front = vec3_normalise(vec3_negate(camera_pos));
-  camera cam = camera_create(camera_pos, camera_front, VEC3_NEG_Z, deg_to_rad(45.0));
-  // 4. create lights
-
-  // directional (sun) light setup
-  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 } };
-  // point lights setup
-  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;
-  scene_init(&our_scene);
-  memcpy(&our_scene.point_lights, &point_lights, sizeof(point_light[4]));
-  our_scene.point_lights_count = 4;
-  our_scene.dir_light = dir_light;
-
-  while (!should_exit(&g_core)) {
-    input_update(&g_core.input);
-
-    currentFrame = glfwGetTime();
-    deltaTime = currentFrame - lastFrame;
-    lastFrame = currentFrame;
-
-    render_frame_begin(&g_core.renderer);
-
-    // Draw the model
-    static f32 angle = 0.0, rot_speed = 0.5;
-    quat rot = quat_from_axis_angle(VEC3_Z, fmod(angle, TAU), true);
-    angle += (rot_speed * deltaTime);
-    transform model_tf = transform_create(vec3(0.0, 0.1, -0.1), rot, 1.8);
-    mat4 model = transform_to_mat(&model_tf);
-
-    draw_mesh(&helmet->meshes->data[0], &model, &cam);
-
-    render_frame_end(&g_core.renderer);
-  }
-
-  renderer_shutdown(&g_core.renderer);
-
-  return 0;
-}
diff --git a/examples/main_loop/ex_main_loop.c b/examples/main_loop/ex_main_loop.c
deleted file mode 100644
index 4e31313..0000000
--- a/examples/main_loop/ex_main_loop.c
+++ /dev/null
@@ -1,34 +0,0 @@
-#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);
-
-    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/property_animation/ex_property_animation.c b/examples/property_animation/ex_property_animation.c
deleted file mode 100644
index c548db4..0000000
--- a/examples/property_animation/ex_property_animation.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#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/standard_lib/ex_std.c b/examples/standard_lib/ex_std.c
deleted file mode 100644
index 9d474de..0000000
--- a/examples/standard_lib/ex_std.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include "file.h"
-#include "str.h"
-
-int main() {
-  // Examples of how to work with arenas and strings
-  size_t arena_size = 1024;
-  arena scratch = arena_create(malloc(arena_size), arena_size);
-  arena* a = &scratch;
-
-  str8 hello = str8lit("Hello World");
-
-  // this works but we should be careful because str8 is not *guaranteed* to point to
-  // a null-terminated string
-  printf("String before: '%s' (null-terminated: %s) \n ", hello.buf,
-         str8_is_null_term(hello) ? "true" : "false");
-
-  char* c = str8_to_cstr(&scratch, hello);
-
-  printf("String after: %s\n", c);
-
-  str8_opt test_file = str8_from_file(&scratch, str8lit("assets/shaders/ui_rect.vert"));
-  if (test_file.has_value) {
-    printf("Contents: %.*s \n", (int)test_file.contents.len, test_file.contents.buf);
-    printf("Null-terminated: %s\n", str8_is_null_term(test_file.contents) ? "true" : "false");
-  }
-
-  return 0;
-}
diff --git a/examples/triangle.c b/examples/triangle.c
new file mode 100644
index 0000000..caa427d
--- /dev/null
+++ b/examples/triangle.c
@@ -0,0 +1 @@
+// Example demonstrating basic RAL usage by rendering a triangle