estructura inicial de la demo

diff --git a/main.c b/main.c
index 74711c8f3a8c35d947636048523ad67c789ed222..8752b8451adb24570f3492098585924716e8f028 100644 (file)
--- a/main.c
+++ b/main.c
@@ -9,8 +9,67 @@
 //#define sqrt(x) __builtin_sqrtf(x)
 //#define expf(x) __builtin_expf(x)
 
+#define SCREEN_WIDTH 1280
+#define SCREEN_HEIGHT 720 
+
 float current_t;
 
+#define renderTexture 1
+
+typedef struct 
+{
+       float s,t,aux1,aux2; // tex coords
+       float c1,c2,c3,c4; // color
+       float n1,n2,n3; // normal
+       float v1,v2,v3,aux3; // vertice
+} VertexInfo;
+
+#define MODEL_SIZE 1000000
+
+VertexInfo gurru1[MODEL_SIZE];
+VertexInfo gurru2[MODEL_SIZE];
+
+void initTextures()
+{
+       fn.glEnable(GL_TEXTURE_2D);
+}
+
+void initModels()
+{
+       // init gurrus
+       for(float u=0.0;u<10.0;u++) 
+       {
+               for(float v=0.0;v<10.0;v++)
+               {
+                       // calc superquadric for gurru1
+                       // calc superquadric for gurru2
+               }
+       }
+}
+
+void endRenderTexture() 
+{
+       fn.glBindTexture(renderTexture);
+       fn.glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
+}
+
+void drawScene() 
+{
+       if(current_t<10.0) 
+       {
+               fn.glRotatef(current_t,1.0,1.0,1.0);
+               fn.glInterleavedArrays(GL_T4F_C4F_N3F_V4F,0,gurru1);
+       }
+       else if(current_t>=10.0 && current_t<20.0) 
+       {       
+               fn.glInterleavedArrays(GL_T4F_C4F_N3F_V4F,0,gurru2);
+       }       
+}
+
+void drawPostProcess()
+{
+} 
+
 #ifdef DEBUG
 int main()
 #else
@@ -23,9 +82,12 @@ void __attribute__((externally_visible)) _start(void)
        fn.SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO);
        fn.SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
        fn.SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL,1);
-       fn.SDL_SetVideoMode(1280,960,32,SDL_OPENGL);
+       fn.SDL_SetVideoMode(SCREEN_WIDTH,SCREEN_HEIGHT,32,SDL_OPENGL);
        fn.SDL_ShowCursor(0);
 
+       initTextures();
+       initModels();
+
        while(1)
        {
                current_t = fn.SDL_GetTicks()/1000.0f;
@@ -34,6 +96,9 @@ void __attribute__((externally_visible)) _start(void)
                        if (event.type == SDL_KEYDOWN)
                                goto end;
                }
+               drawScene();
+               endRenderTexture();
+               drawPostProcess();
                
                fn.SDL_GL_SwapBuffers();
        }