delete documentation workflow

2 files changed, 0 insertions, 589 deletions

diff --git a/src/render/archive/backends/opengl/backend_opengl.c b/src/render/archive/backends/opengl/backend_opengl.c
deleted file mode 100644
index 43105e2..0000000
--- a/src/render/archive/backends/opengl/backend_opengl.c
+++ /dev/null
@@ -1,521 +0,0 @@
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include "colours.h"
-#include "maths.h"
-#include "opengl_helpers.h"
-#include "ral_types.h"
-#define CEL_REND_BACKEND_OPENGL
-#if defined(CEL_REND_BACKEND_OPENGL)
-#include <assert.h>
-#include <stdlib.h>
-
-#include "backend_opengl.h"
-#include "defines.h"
-#include "file.h"
-#include "log.h"
-#include "maths_types.h"
-#include "ral.h"
-
-#include <glad/glad.h>
-#include <glfw3.h>
-
-typedef struct opengl_context {
-  GLFWwindow* window;
-  arena pool_arena;
-  gpu_cmd_encoder command_buffer;
-  gpu_backend_pools gpu_pools;
-  struct resource_pools* resource_pools;
-} opengl_context;
-
-static opengl_context context;
-
-struct GLFWwindow;
-
-bool gpu_backend_init(const char* window_name, struct GLFWwindow* window) {
-  INFO("loading OpenGL backend");
-
-  memset(&context, 0, sizeof(opengl_context));
-  context.window = window;
-
-  size_t pool_buffer_size = 1024 * 1024;
-  context.pool_arena = arena_create(malloc(pool_buffer_size), pool_buffer_size);
-
-  backend_pools_init(&context.pool_arena, &context.gpu_pools);
-  context.resource_pools = malloc(sizeof(struct resource_pools));
-  resource_pools_init(&context.pool_arena, context.resource_pools);
-
-  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);
-
-  // glad: load all opengl function pointers
-  if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
-    ERROR("Failed to initialise GLAD \n");
-    return false;
-  }
-
-  glEnable(GL_DEPTH_TEST);
-  glEnable(GL_CULL_FACE);
-
-  return true;
-}
-
-// --- Render Pipeline
-gpu_pipeline* gpu_graphics_pipeline_create(struct graphics_pipeline_desc description) {
-  gpu_pipeline* pipeline = pipeline_pool_alloc(&context.gpu_pools.pipelines, NULL);
-
-  // Create shader program
-  u32 shader_id = shader_create_separate(description.vs.filepath.buf, description.fs.filepath.buf);
-  pipeline->shader_id = shader_id;
-
-  // Vertex format
-  pipeline->vertex_desc = description.vertex_desc;
-
-  // Allocate uniform buffers if needed
-  u32 ubo_count = 0;
-  // 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);
-
-    for (u32 binding_j = 0; binding_j < sdl.bindings_count; binding_j++) {
-      u32 binding_id = binding_j;
-      assert(binding_id < MAX_PIPELINE_UNIFORM_BUFFERS);
-      shader_binding binding = sdl.bindings[binding_j];
-      if (binding.type == SHADER_BINDING_BYTES) {
-        static u32 s_binding_point = 0;
-        buffer_handle ubo_handle =
-            gpu_buffer_create(binding.data.bytes.size, CEL_BUFFER_UNIFORM, CEL_BUFFER_FLAG_GPU,
-                              NULL);  // no data right now
-        pipeline->uniform_bindings[ubo_count++] = ubo_handle;
-        gpu_buffer* ubo_buf = BUFFER_GET(ubo_handle);
-
-        i32 blockIndex = glGetUniformBlockIndex(pipeline->shader_id, binding.label);
-        printf("Block index for %s: %d", binding.label, blockIndex);
-        if (blockIndex < 0) {
-          WARN("Couldn't retrieve block index for uniform block '%s'", binding.label);
-        } else {
-          // DEBUG("Retrived block index %d for %s", blockIndex, binding.label);
-        }
-        u32 blocksize;
-        glGetActiveUniformBlockiv(pipeline->shader_id, blockIndex, GL_UNIFORM_BLOCK_DATA_SIZE,
-                                  &blocksize);
-        printf("\t with size %d bytes\n", blocksize);
-
-        glBindBufferBase(GL_UNIFORM_BUFFER, s_binding_point, ubo_buf->id.ubo);
-        if (blockIndex != GL_INVALID_INDEX) {
-          glUniformBlockBinding(pipeline->shader_id, blockIndex, s_binding_point);
-        }
-        ubo_buf->ubo_binding_point = s_binding_point++;
-        ubo_buf->name = binding.label;
-        assert(s_binding_point < GL_MAX_UNIFORM_BUFFER_BINDINGS);
-      }
-    }
-  }
-  pipeline->uniform_count = ubo_count;
-
-  pipeline->renderpass = description.renderpass;
-  pipeline->wireframe = description.wireframe;
-
-  return pipeline;
-}
-void gpu_pipeline_destroy(gpu_pipeline* pipeline) {}
-
-// --- Renderpass
-gpu_renderpass* gpu_renderpass_create(const gpu_renderpass_desc* description) {
-  gpu_renderpass* renderpass = renderpass_pool_alloc(&context.gpu_pools.renderpasses, NULL);
-  memcpy(&renderpass->description, description, sizeof(gpu_renderpass_desc));
-  bool default_framebuffer = description->default_framebuffer;
-
-  if (!default_framebuffer) {
-    GLuint gl_fbo_id;
-    glGenFramebuffers(1, &gl_fbo_id);
-    renderpass->fbo = gl_fbo_id;
-  } else {
-    renderpass->fbo = OPENGL_DEFAULT_FRAMEBUFFER;
-    assert(!description->has_color_target);
-    assert(!description->has_depth_stencil);
-  }
-  glBindFramebuffer(GL_FRAMEBUFFER, renderpass->fbo);
-
-  if (description->has_color_target && !default_framebuffer) {
-    gpu_texture* colour_attachment = TEXTURE_GET(description->color_target);
-    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
-                           colour_attachment->id, 0);
-  }
-  if (description->has_depth_stencil && !default_framebuffer) {
-    gpu_texture* depth_attachment = TEXTURE_GET(description->depth_stencil);
-    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depth_attachment->id,
-                           0);
-  }
-
-  if (description->has_depth_stencil && !description->has_color_target) {
-    glDrawBuffer(GL_NONE);
-    glReadBuffer(GL_NONE);
-  }
-
-  glBindFramebuffer(GL_FRAMEBUFFER, 0);  // reset to default framebuffer
-
-  return renderpass;
-}
-void gpu_renderpass_destroy(gpu_renderpass* pass) { glDeleteFramebuffers(1, &pass->fbo); }
-
-// --- Command buffer
-gpu_cmd_encoder gpu_cmd_encoder_create() {
-  gpu_cmd_encoder encoder = { 0 };
-  return encoder;
-}
-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) {
-  glBindFramebuffer(GL_FRAMEBUFFER, renderpass->fbo);
-  rgba clear_colour = STONE_800;
-  glClearColor(clear_colour.r, clear_colour.g, clear_colour.b, 1.0f);
-  if (renderpass->description.has_depth_stencil) {
-    glClear(GL_DEPTH_BUFFER_BIT);
-  } else {
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-  }
-}
-void gpu_cmd_encoder_end_render(gpu_cmd_encoder* encoder) { glBindFramebuffer(GL_FRAMEBUFFER, 0); }
-void gpu_cmd_encoder_begin_compute() {}
-gpu_cmd_encoder* gpu_get_default_cmd_encoder() { return &context.command_buffer; }
-
-/** @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) {
-  // TODO: finish implementing this
-  gpu_buffer* buf = BUFFER_GET(gpu_buf);
-}
-
-/** @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) {
-  encoder->pipeline = pipeline;
-
-  if (pipeline->wireframe) {
-    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
-  } else {
-    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-  }
-
-  // In OpenGL binding a pipeline is more or less equivalent to just setting the shader
-  glUseProgram(pipeline->shader_id);
-}
-void encode_bind_shader_data(gpu_cmd_encoder* encoder, u32 group, shader_data* data) {
-  shader_data_layout sdl = data->shader_data_get_layout(data->data);
-  // printf("Binding %s shader data\n", sdl.name);
-
-  for (u32 i = 0; i < sdl.bindings_count; i++) {
-    shader_binding binding = sdl.bindings[i];
-    /* print_shader_binding(binding); */
-
-    if (binding.type == SHADER_BINDING_BYTES) {
-      buffer_handle b;
-      gpu_buffer* ubo_buf;
-      bool found = false;
-      for (u32 i = 0; i < encoder->pipeline->uniform_count; i++) {
-        b = encoder->pipeline->uniform_bindings[i];
-        ubo_buf = BUFFER_GET(b);
-        assert(ubo_buf->name != NULL);
-        if (strcmp(ubo_buf->name, binding.label) == 0) {
-          found = true;
-          break;
-        }
-      }
-      if (!found) {
-        ERROR("Couldnt find uniform buffer object!!");
-      }
-
-      i32 blockIndex = glGetUniformBlockIndex(encoder->pipeline->shader_id, binding.label);
-      if (blockIndex < 0) {
-        WARN("Couldn't retrieve block index for uniform block '%s'", binding.label);
-      } else {
-        // DEBUG("Retrived block index %d for %s", blockIndex, binding.label);
-      }
-
-      glBindBuffer(GL_UNIFORM_BUFFER, ubo_buf->id.ubo);
-      glBufferSubData(GL_UNIFORM_BUFFER, 0, ubo_buf->size, binding.data.bytes.data);
-
-    } else if (binding.type == SHADER_BINDING_TEXTURE) {
-      gpu_texture* tex = TEXTURE_GET(binding.data.texture.handle);
-      GLint tex_slot = glGetUniformLocation(encoder->pipeline->shader_id, binding.label);
-      // printf("%d slot \n", tex_slot);
-      if (tex_slot == GL_INVALID_VALUE || tex_slot < 0) {
-        WARN("Invalid binding label for texture %s - couldn't fetch texture slot uniform",
-             binding.label);
-      }
-      glUniform1i(tex_slot, i);
-      glActiveTexture(GL_TEXTURE0 + i);
-      glBindTexture(GL_TEXTURE_2D, tex->id);
-    }
-  }
-}
-void encode_set_default_settings(gpu_cmd_encoder* encoder) {}
-void encode_set_vertex_buffer(gpu_cmd_encoder* encoder, buffer_handle buf) {
-  gpu_buffer* buffer = BUFFER_GET(buf);
-  if (buffer->vao == 0) {  // if no VAO for this vertex buffer, create it
-    INFO("Setting up VAO");
-    buffer->vao = opengl_bindcreate_vao(buffer, encoder->pipeline->vertex_desc);
-  }
-  glBindVertexArray(buffer->vao);
-}
-void encode_set_index_buffer(gpu_cmd_encoder* encoder, buffer_handle buf) {
-  gpu_buffer* buffer = BUFFER_GET(buf);
-  glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buffer->id.ibo);
-}
-void encode_draw(gpu_cmd_encoder* encoder, u64 count) { glDrawArrays(GL_TRIANGLES, 0, count); }
-void encode_draw_indexed(gpu_cmd_encoder* encoder, u64 index_count) {
-  /* printf("Draw %ld indices\n", index_count); */
-  glDrawElements(GL_TRIANGLES, index_count, GL_UNSIGNED_INT, 0);
-}
-void encode_clear_buffer(gpu_cmd_encoder* encoder, buffer_handle buf) {}
-
-// --- Buffers
-buffer_handle gpu_buffer_create(u64 size, gpu_buffer_type buf_type, gpu_buffer_flags flags,
-                                const void* data) {
-  // "allocating" the cpu-side buffer struct
-  buffer_handle handle;
-  gpu_buffer* buffer = buffer_pool_alloc(&context.resource_pools->buffers, &handle);
-  buffer->size = size;
-  buffer->vao = 0;  // When we create a new buffer, there will be no VAO.
-
-  // Opengl buffer
-  GLuint gl_buffer_id;
-  glGenBuffers(1, &gl_buffer_id);
-
-  GLenum gl_buf_type;
-  GLenum gl_buf_usage = GL_STATIC_DRAW;
-
-  switch (buf_type) {
-    case CEL_BUFFER_UNIFORM:
-      DEBUG("Creating Uniform buffer");
-      gl_buf_type = GL_UNIFORM_BUFFER;
-      /* gl_buf_usage = GL_DYNAMIC_DRAW; */
-      buffer->id.ubo = gl_buffer_id;
-      break;
-    case CEL_BUFFER_DEFAULT:
-    case CEL_BUFFER_VERTEX:
-      DEBUG("Creating Vertex buffer");
-      gl_buf_type = GL_ARRAY_BUFFER;
-      buffer->id.vbo = gl_buffer_id;
-      break;
-    case CEL_BUFFER_INDEX:
-      DEBUG("Creating Index buffer");
-      gl_buf_type = GL_ELEMENT_ARRAY_BUFFER;
-      buffer->id.ibo = gl_buffer_id;
-      break;
-    default:
-      WARN("Unimplemented gpu_buffer_type provided %s", buffer_type_names[buf_type]);
-      break;
-  }
-  // bind buffer
-  glBindBuffer(gl_buf_type, gl_buffer_id);
-
-  if (data) {
-    TRACE("Upload data (%d bytes) as part of buffer creation", size);
-    glBufferData(gl_buf_type, buffer->size, data, gl_buf_usage);
-  } else {
-    TRACE("Allocating but not uploading (%d bytes)", size);
-    glBufferData(gl_buf_type, buffer->size, NULL, gl_buf_usage);
-  }
-
-  glBindBuffer(gl_buf_type, 0);
-
-  return handle;
-}
-
-texture_handle gpu_texture_create(texture_desc desc, bool create_view, const void* data) {
-  // "allocating" the cpu-side struct
-  texture_handle handle;
-  gpu_texture* texture = texture_pool_alloc(&context.resource_pools->textures, &handle);
-  DEBUG("Allocated texture with handle %d", handle.raw);
-
-  GLuint gl_texture_id;
-  glGenTextures(1, &gl_texture_id);
-  texture->id = gl_texture_id;
-
-  glBindTexture(GL_TEXTURE_2D, gl_texture_id);
-
-  GLint internal_format =
-      desc.format == CEL_TEXTURE_FORMAT_DEPTH_DEFAULT ? GL_DEPTH_COMPONENT : GL_RGB;
-  GLenum format = desc.format == CEL_TEXTURE_FORMAT_DEPTH_DEFAULT ? GL_DEPTH_COMPONENT : GL_RGBA;
-  GLenum data_type = desc.format == CEL_TEXTURE_FORMAT_DEPTH_DEFAULT ? GL_FLOAT : GL_UNSIGNED_BYTE;
-
-  if (desc.format == CEL_TEXTURE_FORMAT_DEPTH_DEFAULT) {
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
-  } else {
-    // 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);
-  }
-
-  if (data) {
-    glTexImage2D(GL_TEXTURE_2D, 0, internal_format, desc.extents.x, desc.extents.y, 0, format,
-                 data_type, data);
-    glGenerateMipmap(GL_TEXTURE_2D);
-  } else {
-    WARN("No image data provided");
-    glTexImage2D(GL_TEXTURE_2D, 0, internal_format, desc.extents.x, desc.extents.y, 0, format,
-                 data_type, NULL);
-  }
-
-  glBindTexture(GL_TEXTURE_2D, 0);
-
-  return handle;
-}
-
-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) {}
-
-// --- TEMP
-bool gpu_backend_begin_frame() {
-  glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-  return true;
-}
-void gpu_backend_end_frame() {
-  // TODO: Reset all bindings
-  glfwSwapBuffers(context.window);
-}
-void gpu_temp_draw(size_t n_verts) {}
-
-u32 shader_create_separate(const char* vert_shader, const char* frag_shader) {
-  INFO("Load shaders at %s and %s", vert_shader, frag_shader);
-  int success;
-  char info_log[512];
-
-  u32 vertex = glCreateShader(GL_VERTEX_SHADER);
-  const char* vertex_shader_src = string_from_file(vert_shader);
-  if (vertex_shader_src == NULL) {
-    ERROR("EXIT: couldnt load shader");
-    exit(-1);
-  }
-  glShaderSource(vertex, 1, &vertex_shader_src, NULL);
-  glCompileShader(vertex);
-  glGetShaderiv(vertex, GL_COMPILE_STATUS, &success);
-  if (!success) {
-    glGetShaderInfoLog(vertex, 512, NULL, info_log);
-    printf("%s\n", info_log);
-    ERROR("EXIT: vertex shader compilation failed");
-    exit(-1);
-  }
-
-  // fragment shader
-  u32 fragment = glCreateShader(GL_FRAGMENT_SHADER);
-  const char* fragment_shader_src = string_from_file(frag_shader);
-  if (fragment_shader_src == NULL) {
-    ERROR("EXIT: couldnt load shader");
-    exit(-1);
-  }
-  glShaderSource(fragment, 1, &fragment_shader_src, NULL);
-  glCompileShader(fragment);
-  glGetShaderiv(fragment, GL_COMPILE_STATUS, &success);
-  if (!success) {
-    glGetShaderInfoLog(fragment, 512, NULL, info_log);
-    printf("%s\n", info_log);
-    ERROR("EXIT: fragment shader compilation failed");
-    exit(-1);
-  }
-
-  u32 shader_prog;
-  shader_prog = glCreateProgram();
-
-  glAttachShader(shader_prog, vertex);
-  glAttachShader(shader_prog, fragment);
-  glLinkProgram(shader_prog);
-  glDeleteShader(vertex);
-  glDeleteShader(fragment);
-  free((char*)vertex_shader_src);
-  free((char*)fragment_shader_src);
-
-  return shader_prog;
-}
-
-inline void uniform_vec3f(u32 program_id, const char* uniform_name, vec3* value) {
-  glUniform3fv(glGetUniformLocation(program_id, uniform_name), 1, &value->x);
-}
-inline void uniform_f32(u32 program_id, const char* uniform_name, f32 value) {
-  glUniform1f(glGetUniformLocation(program_id, uniform_name), value);
-}
-inline void uniform_i32(u32 program_id, const char* uniform_name, i32 value) {
-  glUniform1i(glGetUniformLocation(program_id, uniform_name), value);
-}
-inline void uniform_mat4f(u32 program_id, const char* uniform_name, mat4* value) {
-  glUniformMatrix4fv(glGetUniformLocation(program_id, uniform_name), 1, GL_FALSE, value->data);
-}
-
-// void clear_screen(vec3 colour) {
-//   glClearColor(colour.x, colour.y, colour.z, 1.0f);
-//   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);
-//   glBindTexture(GL_TEXTURE_2D, tex->texture_id);
-// }
-
-// void bind_mesh_vertex_buffer(void *_backend, mesh *mesh) { glBindVertexArray(mesh->vao); }
-
-// static inline GLenum to_gl_prim_topology(enum cel_primitive_topology primitive) {
-//   switch (primitive) {
-//     case CEL_PRIMITIVE_TOPOLOGY_TRIANGLE:
-//       return GL_TRIANGLES;
-//     case CEL_PRIMITIVE_TOPOLOGY_POINT:
-//     case CEL_PRIMITIVE_TOPOLOGY_LINE:
-//     case CEL_PRIMITIVE_TOPOLOGY_LINE_STRIP:
-//     case CEL_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
-//     case CEL_PRIMITIVE_TOPOLOGY_COUNT:
-//       break;
-//   }
-// }
-#endif
diff --git a/src/render/archive/backends/opengl/backend_opengl.h b/src/render/archive/backends/opengl/backend_opengl.h
deleted file mode 100644
index 14b44af..0000000
--- a/src/render/archive/backends/opengl/backend_opengl.h
+++ /dev/null
@@ -1,68 +0,0 @@
-#pragma once
-
-#ifdef CEL_REND_BACKEND_OPENGL
-
-#include "defines.h"
-#include "maths_types.h"
-#include "ral.h"
-#include "ral_types.h"
-
-#define MAX_PIPELINE_UNIFORM_BUFFERS 32
-
-#define OPENGL_DEFAULT_FRAMEBUFFER 0
-
-typedef struct gpu_swapchain {
-  u32x2 dimensions;
-} gpu_swapchain;
-typedef struct gpu_device {
-} gpu_device;
-typedef struct gpu_pipeline_layout {
-  void* pad
-} gpu_pipeline_layout;
-typedef struct gpu_pipeline {
-  u32 shader_id;
-  gpu_renderpass* renderpass;
-  vertex_description vertex_desc;
-  buffer_handle uniform_bindings[MAX_PIPELINE_UNIFORM_BUFFERS];
-  u32 uniform_count;
-  bool wireframe;
-} gpu_pipeline;
-typedef struct gpu_renderpass {
-  u32 fbo;
-  gpu_renderpass_desc description;
-} gpu_renderpass;
-typedef struct gpu_cmd_encoder {
-  gpu_pipeline* pipeline;
-} gpu_cmd_encoder;  // Recording
-typedef struct gpu_cmd_buffer {
-  void* pad;
-} gpu_cmd_buffer;  // Ready for submission
-
-typedef struct gpu_buffer {
-  union {
-    u32 vbo;
-    u32 ibo;
-    u32 ubo;
-  } id;
-  union {
-    u32 vao;
-    u32 ubo_binding_point
-  };  // Optional
-  char* name;
-  u64 size;
-} gpu_buffer;
-typedef struct gpu_texture {
-  u32 id;
-  void* pad;
-} gpu_texture;
-
-typedef struct opengl_support {
-} opengl_support;
-
-u32 shader_create_separate(const char* vert_shader, const char* frag_shader);
-
-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);
-#endif