static void initShader( int *pid, const char *vs, const char *fs )
{
pid[0] = oglCreateProgram();
const int vsId = oglCreateShader( GL_VERTEX_SHADER );
const int fsId = oglCreateShader( GL_FRAGMENT_SHADER );
oglShaderSource( vsId, 1, &vs, 0 );
oglShaderSource( fsId, 1, &fs, 0 );
oglCompileShader( vsId );
oglCompileShader( fsId );
oglAttachShader( pid[0], fsId );
oglAttachShader( pid[0], vsId );
oglLinkProgram( pid[0] );
#ifdef DEBUG
int result;
char info[1536];
oglGetObjectParameteriv( vsId, GL_OBJECT_COMPILE_STATUS_ARB, &result ); oglGetInfoLog( vsId, 1024, NULL, (char *)info ); if( !result ) DebugBreak();
oglGetObjectParameteriv( fsId, GL_OBJECT_COMPILE_STATUS_ARB, &result ); oglGetInfoLog( fsId, 1024, NULL, (char *)info ); if( !result ) DebugBreak();
oglGetObjectParameteriv( pid[0], GL_OBJECT_LINK_STATUS_ARB, &result ); oglGetInfoLog( pid[0], 1024, NULL, (char*)info ); if( !result ) DebugBreak();
#endif
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASS wc;
// create window
ZeroMemory( &wc, sizeof(WNDCLASS) );
wc.style = CS_OWNDC|CS_HREDRAW|CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.hInstance = hPrevInstance;
wc.lpszClassName = "iq";
if( !RegisterClass(&wc) )
return( 0 );
const int dws = WS_VISIBLE | WS_CAPTION | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_SYSMENU;
AdjustWindowRect( &rec, dws, 0 );
HWND hWnd = CreateWindowEx( WS_EX_APPWINDOW | WS_EX_WINDOWEDGE, wc.lpszClassName, "accio", dws,
(GetSystemMetrics(SM_CXSCREEN)-rec.right+rec.left)>>1,
(GetSystemMetrics(SM_CYSCREEN)-rec.bottom+rec.top)>>1,
rec.right-rec.left, rec.bottom-rec.top, 0, 0, hPrevInstance, 0 );
if( !hWnd )
return( 0 );
HDC hDC=GetDC(hWnd);
if( !hDC )
return( 0 );
// init opengl
int pf = ChoosePixelFormat(hDC,&pfd);
if( !pf )
return( 0 );
if( !SetPixelFormat(hDC,pf,&pfd) )
return( 0 );
HGLRC hRC = wglCreateContext(hDC);
if( !hRC )
return( 0 );
if( !wglMakeCurrent(hDC,hRC) )
return( 0 );
// init extensions
for( int i=0; i<(sizeof(funcPtrs)/sizeof(void*)); i++ )
{
funcPtrs[i] = wglGetProcAddress( funcNames[i] );
if( !funcPtrs[i] )
return 0;
}
// create shader
int p = oglCreateProgram();
// int v = oglCreateShader(GL_VERTEX_SHADER);
// oglShaderSource(v, 1, &vertexShader, 0);
// oglCompileShader(v);
// oglAttachShader(p,v);
int f = oglCreateShader(GL_FRAGMENT_SHADER);
oglShaderSource(f, 1, &fragmentShader, 0);
oglCompileShader(f);
oglAttachShader(p,f);
oglLinkProgram(p);
oglUseProgram(p);
ShowCursor(0);
// run
/*
do
{
glColor3f(t,sinf(.25f*t),0.0f);
glRects(-1,-1,1,1);
SwapBuffers(hDC); //wglSwapLayerBuffers( hDC, WGL_SWAP_MAIN_PLANE );
}while ( !GetAsyncKeyState(VK_ESCAPE) );
*/
int done = 0;
while( !done )
{
const float t = .0025f*(float)(GetTickCount()&65535);
MSG msg;
while( PeekMessage(&msg,0,0,0,PM_REMOVE) )
{
if( msg.message==WM_QUIT ) done=1;
TranslateMessage( &msg );
DispatchMessage( &msg );
}
glColor3f(t,sinf(.25f*t),0.0f);
glRects(-1,-1,1,1);
SwapBuffers( hDC );
}
ExitProcess( 0 );
return 0;
}