ATTRIB_VAL( GLX_AUX_BUFFERS, 3 );
if( fgState.DisplayMode & GLUT_AUX4 )
ATTRIB_VAL( GLX_AUX_BUFFERS, 4 );
+ if ( fgState.DisplayMode & GLUT_MULTISAMPLE )
+ ATTRIB_VAL( GLX_SAMPLES_SGIS, 4 );
/* Push a null at the end of the list */
* Setup the pixel format for a Win32 window
*/
#if TARGET_HOST_MS_WINDOWS
+/* WRONG-- FIXME */
+/* The following include file is available from SGI but is not standard:
+ * #include <GL/wglext.h>
+ * So we copy the necessary parts out of it.
+ */
+typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
+
+typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
+
+#define WGL_DRAW_TO_WINDOW_ARB 0x2001
+#define WGL_ACCELERATION_ARB 0x2003
+#define WGL_SUPPORT_OPENGL_ARB 0x2010
+#define WGL_DOUBLE_BUFFER_ARB 0x2011
+#define WGL_COLOR_BITS_ARB 0x2014
+#define WGL_ALPHA_BITS_ARB 0x201B
+#define WGL_DEPTH_BITS_ARB 0x2022
+#define WGL_STENCIL_BITS_ARB 0x2023
+#define WGL_FULL_ACCELERATION_ARB 0x2027
+
+#define WGL_SAMPLE_BUFFERS_ARB 0x2041
+#define WGL_SAMPLES_ARB 0x2042
+
+
GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
unsigned char layer_type )
{
-#ifdef _WIN32_WCE
+#if defined(_WIN32_WCE)
return GL_TRUE;
#else
PIXELFORMATDESCRIPTOR* ppfd, pfd;
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = flags;
- pfd.iPixelType = PFD_TYPE_RGBA;
+
+ if( fgState.DisplayMode & GLUT_INDEX )
+ {
+ pfd.iPixelType = PFD_TYPE_COLORINDEX;
+ pfd.cRedBits = 0;
+ pfd.cGreenBits = 0;
+ pfd.cBlueBits = 0;
+ pfd.cAlphaBits = 0;
+ }
+ else
+ {
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ pfd.cRedBits = 8;
+ pfd.cGreenBits = 8;
+ pfd.cBlueBits = 8;
+ if ( fgState.DisplayMode & GLUT_ALPHA )
+ pfd.cAlphaBits = 8;
+ else
+ pfd.cAlphaBits = 0;
+ }
+
pfd.cColorBits = 24;
- pfd.cRedBits = 0;
pfd.cRedShift = 0;
- pfd.cGreenBits = 0;
pfd.cGreenShift = 0;
- pfd.cBlueBits = 0;
pfd.cBlueShift = 0;
- pfd.cAlphaBits = 0;
pfd.cAlphaShift = 0;
pfd.cAccumBits = 0;
pfd.cAccumRedBits = 0;
ppfd = &pfd;
pixelformat = ChoosePixelFormat( window->Window.Device, ppfd );
+
+ /* windows hack for multismapling */
+ if (fgState.DisplayMode&GLUT_MULTISAMPLE)
+ {
+ PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB=NULL;
+ HGLRC rc, rc_before=wglGetCurrentContext();
+ HWND hWnd;
+ HDC hDC, hDC_before=wglGetCurrentDC();
+ WNDCLASS wndCls;
+ ATOM atom;
+
+ /* create a dummy window */
+ ZeroMemory(&wndCls, sizeof(wndCls));
+ wndCls.lpfnWndProc = DefWindowProc;
+ wndCls.hInstance = fgDisplay.Instance;
+ wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
+ wndCls.lpszClassName = _T("FREEGLUT_dummy");
+ atom = RegisterClass( &wndCls );
+
+ hWnd=CreateWindow((LPCSTR)atom, _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.Instance, 0 );
+ hDC=GetDC(hWnd);
+ SetPixelFormat( hDC, pixelformat, ppfd );
+
+ rc = wglCreateContext( hDC );
+ wglMakeCurrent(hDC, rc);
+
+ wglGetEntensionsStringARB=(PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
+ if (wglGetEntensionsStringARB)
+ {
+ const char * pWglExtString=wglGetEntensionsStringARB(hDC);
+ if (pWglExtString)
+ {
+ if (strstr(pWglExtString, "WGL_ARB_multisample"))
+ {
+ int pAttributes[100];
+ int iCounter=0;
+ int iPixelFormat;
+ BOOL bValid;
+ float fAttributes[] = {0,0};
+ UINT numFormats;
+ PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc=NULL;
+
+ wglChoosePixelFormatARBProc=(PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
+ if ( wglChoosePixelFormatARBProc )
+ {
+ pAttributes[iCounter++]=WGL_DRAW_TO_WINDOW_ARB; pAttributes[iCounter++]=GL_TRUE;
+ pAttributes[iCounter++]=WGL_SUPPORT_OPENGL_ARB; pAttributes[iCounter++]=GL_TRUE;
+ pAttributes[iCounter++]=WGL_ACCELERATION_ARB; pAttributes[iCounter++]=WGL_FULL_ACCELERATION_ARB;
+
+ pAttributes[iCounter++]=WGL_COLOR_BITS_ARB; pAttributes[iCounter++]=pfd.cColorBits ;
+ pAttributes[iCounter++]=WGL_ALPHA_BITS_ARB; pAttributes[iCounter++]=pfd.cAlphaBits;
+ pAttributes[iCounter++]=WGL_DEPTH_BITS_ARB; pAttributes[iCounter++]=pfd.cDepthBits;
+ pAttributes[iCounter++]=WGL_STENCIL_BITS_ARB; pAttributes[iCounter++]=pfd.cStencilBits;
+
+ pAttributes[iCounter++]=WGL_DOUBLE_BUFFER_ARB; pAttributes[iCounter++]=(fgState.DisplayMode & GLUT_DOUBLE)!=0;
+ pAttributes[iCounter++]=WGL_SAMPLE_BUFFERS_ARB; pAttributes[iCounter++]=GL_TRUE;
+ pAttributes[iCounter++]=WGL_SAMPLES_ARB; pAttributes[iCounter++]=4;
+ pAttributes[iCounter++]=0; pAttributes[iCounter++]=0; /* terminator */
+
+ bValid = wglChoosePixelFormatARBProc(window->Window.Device,pAttributes,fAttributes,1,&iPixelFormat,&numFormats);
+
+ if (bValid && numFormats>0)
+ pixelformat=iPixelFormat;
+ }
+ }
+ wglMakeCurrent( hDC_before, rc_before);
+ wglDeleteContext(rc);
+ ReleaseDC(hWnd, hDC);
+ DestroyWindow(hWnd);
+ UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.Instance);
+ }
+ }
+ }
+
if( pixelformat == 0 )
return GL_FALSE;