1 files changed, 95 insertions, 0 deletions
diff --git a/rsgl.c3 b/rsgl.c3
new file mode 100644
index 0000000..08459df
--- /dev/null
+++ b/rsgl.c3
@@ -0,0 +1,95 @@
+module rsgl;
+
+alias Renderer = void;
+alias RenderPass = void;
+alias TextureBlob = void;
+
+alias Framebuffer = usz;
+alias Texture = usz;
+
+enum BufferType
+{
+  ARRAY_BUFFER,
+  ELEMENT_ARRAY_BUFFER,
+  SHADER_STORAGE_BUFFER,
+  TEXTURE_BUFFER,
+  UNIFORM_BUFFER,
+}
+
+struct ProgramBlob
+{
+  ZString vertex;
+  usz vertexLen;
+  ZString fragment;
+  usz fragmentLen;
+}
+
+struct ProgramInfo
+{
+  usz program;
+  usz perspectiveView;
+  usz model;
+  usz vertexPosition;
+  usz vertexTexCoord;
+  usz vertexColor;
+}
+
+alias RendererProc_size = fn usz ();
+alias RendererProc_defaultBlob = fn ProgramBlob (void*);
+alias RendererProc_initPtr = fn void (void*, void*);
+alias RendererProc_freePtr = fn void (void*);
+alias RendererProc_render = fn void (void*, RenderPass*);
+alias RendererProc_clear = fn void (void*, Framebuffer, float, float, float, float);
+alias RendererProc_viewport = fn void (void*, int, int, int, int);
+alias RendererProc_setSurface = fn void (void*, void*);
+alias RendererProc_createTexture = fn Texture (void*, TextureBlob*);
+alias RendererProc_copyToTexture = fn void (void*, Texture, usz, usz, TextureBlob*);
+alias RendererProc_deleteTexture = fn void (void*, Texture);
+alias RendererProc_scissorStart = fn void (void*, float, float, float, float, float);
+alias RendererProc_scissorEnd = fn void (void*);
+alias RendererProc_createProgram = fn ProgramInfo (void*, ProgramBlob*);
+alias RendererProc_deleteProgram = fn void (void*, ProgramInfo*);
+alias RendererProc_findShaderVariable = fn usz (void*, ProgramInfo*, ZString, usz);
+alias RendererProc_updateShaderVariable = fn void (void*, ProgramInfo*, usz, float*, char);
+alias RendererProc_createComputeProgram = fn ProgramInfo (void*, ZString);
+alias RendererProc_dispatchComputeProgram = fn void (void*, ProgramInfo*, uint, uint, uint);
+alias RendererProc_bindComputeTexture = fn void (void*, uint, char);
+alias RendererProc_createBuffer = fn void (void*, BufferType, usz, void*, usz*);
+alias RendererProc_updateBuffer = fn void (void*, BufferType, usz, void*, usz, usz);
+alias RendererProc_deleteBuffer = fn void (void*, usz);
+alias RendererProc_createFramebuffer = fn Framebuffer (void*, usz, usz);
+alias RendererProc_attachFramebuffer = fn void (void*, Framebuffer, Texture, char, char);
+alias RendererProc_deleteFramebuffer = fn void (void*, Framebuffer);
+
+struct RendererProc
+{
+  RendererProc_size                   size;
+  RendererProc_defaultBlob            defaultBlob;
+  RendererProc_initPtr                initPtr;
+  RendererProc_freePtr                freePtr;
+  RendererProc_render                 render;
+  RendererProc_clear                  clear;
+  RendererProc_viewport               viewport;
+  RendererProc_setSurface             setSurface;
+  RendererProc_createTexture          createTexture;
+  RendererProc_copyToTexture          copyToTexture;
+  RendererProc_deleteTexture          deleteTexture;
+  RendererProc_scissorStart           scissorStart;
+  RendererProc_scissorEnd             scissorEnd;
+  RendererProc_createProgram          createProgram;
+  RendererProc_deleteProgram          deleteProgram;
+  RendererProc_findShaderVariable     findShaderVariable;
+  RendererProc_updateShaderVariable   updateShaderVariable;
+  RendererProc_createComputeProgram   createComputeProgram;
+  RendererProc_dispatchComputeProgram dispatchComputeProgram;
+  RendererProc_bindComputeTexture     bindComputeTexture;
+  RendererProc_createBuffer           createBuffer;
+  RendererProc_updateBuffer           updateBuffer;
+  RendererProc_deleteBuffer           deleteBuffer;
+  RendererProc_createFramebuffer      createFramebuffer;
+  RendererProc_attachFramebuffer      attachFramebuffer;
+  RendererProc_deleteFramebuffer      deleteFramebuffer;
+}
+
+extern fn Renderer*    renderer_init(RendererProc, void*) @cname("RSGL_renderer_init");
+extern fn RendererProc gl_rendererProc()                  @cname("RSGL_GL_rendererProc");