void ReportDDrawSurfDesc( DDSURFACEDESC2 ddsd)
{
TCHAR szFlags[4096];
TCHAR szMsg[4096];
OutputDebugString(_T("*** Surface description ***\n"));
SurfaceDescHelper( ddsd.dwFlags, szFlags);
OutputDebugString(szFlags);
wsprintf( szMsg, _T(" dwWidth x dwHeight: %ld x %ld\n"), ddsd.dwWidth, ddsd.dwHeight);
OutputDebugString(szMsg);
wsprintf( szMsg, _T(" lPitch: %ld\n"), ddsd.lPitch);
OutputDebugString(szMsg);
OutputDebugString(_T(" (dwLinearSize)\n"));
wsprintf( szMsg, _T(" dwBackBufferCount: %ld\n"), ddsd.dwBackBufferCount);
OutputDebugString(szMsg);
wsprintf( szMsg, _T(" dwMipMapCount: %ld\n"), ddsd.dwMipMapCount);
OutputDebugString(szMsg);
OutputDebugString(_T(" (dwRefreshRate)"));
wsprintf( szMsg, _T(" dwAlphaBitDepth: %ld\n"), (LONG)ddsd.dwAlphaBitDepth);
OutputDebugString(szMsg);
wsprintf( szMsg, _T(" lpSurface: %x\n"), (LONG_PTR)(ddsd.lpSurface));
OutputDebugString(szMsg);
ReportPixelFormat( ddsd.ddpfPixelFormat );
ReportDDSCAPS2( ddsd.ddsCaps );
wsprintf( szMsg, _T(" dwTextureStage: %ld\n"), ddsd.dwTextureStage);
OutputDebugString(szMsg);
OutputDebugString(_T("***************************\n"));
}
static int SetupGL(int colorbits, int depthbits, int stencilbits, int multisamples)
{
PIXELFORMATDESCRIPTOR pfd;
int pixelformat;
// create the main window
Win_Init();
if (colorbits == 0)
colorbits = 24;
if (depthbits == 0)
depthbits = colorbits > 16 ? 24 : 16;
if (depthbits < 24)
stencilbits = 0;
// choose pixel format
if (qwglChoosePixelFormatARB && multisamples > 1) {
int iAttributes[20];
UINT numFormats;
iAttributes[0] = WGL_DRAW_TO_WINDOW_ARB;
iAttributes[1] = TRUE;
iAttributes[2] = WGL_SUPPORT_OPENGL_ARB;
iAttributes[3] = TRUE;
iAttributes[4] = WGL_DOUBLE_BUFFER_ARB;
iAttributes[5] = TRUE;
iAttributes[6] = WGL_PIXEL_TYPE_ARB;
iAttributes[7] = WGL_TYPE_RGBA_ARB;
iAttributes[8] = WGL_COLOR_BITS_ARB;
iAttributes[9] = colorbits;
iAttributes[10] = WGL_DEPTH_BITS_ARB;
iAttributes[11] = depthbits;
iAttributes[12] = WGL_STENCIL_BITS_ARB;
iAttributes[13] = stencilbits;
iAttributes[14] = WGL_SAMPLE_BUFFERS_ARB;
iAttributes[15] = 1;
iAttributes[16] = WGL_SAMPLES_ARB;
iAttributes[17] = multisamples;
iAttributes[18] = 0;
iAttributes[19] = 0;
if (qwglChoosePixelFormatARB(win.dc, iAttributes, NULL, 1, &pixelformat, &numFormats) == FALSE) {
ReportLastError("wglChoosePixelFormatARB");
goto soft;
}
if (numFormats == 0) {
Com_EPrintf("No suitable OpenGL pixelformat found for %d multisamples\n", multisamples);
goto soft;
}
} else {
memset(&pfd, 0, sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = colorbits;
pfd.cDepthBits = depthbits;
pfd.cStencilBits = stencilbits;
pfd.iLayerType = PFD_MAIN_PLANE;
if (glw.minidriver) {
if ((pixelformat = qwglChoosePixelFormat(win.dc, &pfd)) == 0) {
ReportLastError("wglChoosePixelFormat");
goto soft;
}
} else {
if ((pixelformat = ChoosePixelFormat(win.dc, &pfd)) == 0) {
ReportLastError("ChoosePixelFormat");
goto soft;
}
}
}
// set pixel format
if (glw.minidriver) {
qwglDescribePixelFormat(win.dc, pixelformat, sizeof(pfd), &pfd);
ReportPixelFormat(pixelformat, &pfd);
if (qwglSetPixelFormat(win.dc, pixelformat, &pfd) == FALSE) {
ReportLastError("wglSetPixelFormat");
goto soft;
}
} else {
DescribePixelFormat(win.dc, pixelformat, sizeof(pfd), &pfd);
ReportPixelFormat(pixelformat, &pfd);
if (SetPixelFormat(win.dc, pixelformat, &pfd) == FALSE) {
ReportLastError("SetPixelFormat");
goto soft;
}
}
// check for software emulation
if (pfd.dwFlags & PFD_GENERIC_FORMAT) {
if (!gl_allow_software->integer) {
Com_EPrintf("No hardware OpenGL acceleration detected\n");
goto soft;
}
Com_WPrintf("...using software emulation\n");
} else if (pfd.dwFlags & PFD_GENERIC_ACCELERATED) {
Com_DPrintf("...MCD acceleration found\n");
win.flags |= QVF_ACCELERATED;
} else {
Com_DPrintf("...ICD acceleration found\n");
win.flags |= QVF_ACCELERATED;
}
// startup the OpenGL subsystem by creating a context and making it current
if ((glw.hGLRC = qwglCreateContext(win.dc)) == NULL) {
ReportLastError("wglCreateContext");
goto hard;
}
if (qwglMakeCurrent(win.dc, glw.hGLRC) == FALSE) {
ReportLastError("wglMakeCurrent");
qwglDeleteContext(glw.hGLRC);
glw.hGLRC = NULL;
goto hard;
}
return FAIL_OK;
soft:
// it failed, clean up
Win_Shutdown();
return FAIL_SOFT;
hard:
Win_Shutdown();
return FAIL_HARD;
}