C++ (Cpp) stw_pixelformat_get_count Beispiele

Beispiel #1

Datei: stw_pixelformat.c Projekt: MIPS/external-mesa3d

LONG APIENTRY
DrvDescribePixelFormat(
   HDC hdc,
   INT iPixelFormat,
   ULONG cjpfd,
   PIXELFORMATDESCRIPTOR *ppfd )
{
   uint count;
   const struct stw_pixelformat_info *pfi;

   (void) hdc;

   if (!stw_dev)
      return 0;

   count = stw_pixelformat_get_count();

   if (ppfd == NULL)
      return count;
   if (cjpfd != sizeof( PIXELFORMATDESCRIPTOR ))
      return 0;

   pfi = stw_pixelformat_get_info( iPixelFormat );
   if (!pfi) {
      return 0;
   }
   
   memcpy(ppfd, &pfi->pfd, sizeof( PIXELFORMATDESCRIPTOR ));

   return count;
}

Beispiel #2

Datei: stw_pixelformat.c Projekt: GunioRobot/mesa-7.10.2-PS3

/* Only used by the wgl code, but have it here to avoid exporting the
 * pixelformat.h functionality.
 */
int stw_pixelformat_choose( HDC hdc,
                            CONST PIXELFORMATDESCRIPTOR *ppfd )
{
   uint count;
   uint index;
   uint bestindex;
   uint bestdelta;

   (void) hdc;

   count = stw_pixelformat_get_count();
   bestindex = count;
   bestdelta = ~0U;

   for (index = 0; index < count; index++) {
      uint delta = 0;
      const struct stw_pixelformat_info *pfi = stw_pixelformat_get_info( index );

      if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) &&
          !!(ppfd->dwFlags & PFD_DOUBLEBUFFER) !=
          !!(pfi->pfd.dwFlags & PFD_DOUBLEBUFFER))
         continue;

      /* FIXME: Take in account individual channel bits */
      if (ppfd->cColorBits != pfi->pfd.cColorBits)
         delta += 8;

      if (ppfd->cDepthBits != pfi->pfd.cDepthBits)
         delta += 4;

      if (ppfd->cStencilBits != pfi->pfd.cStencilBits)
         delta += 2;

      if (ppfd->cAlphaBits != pfi->pfd.cAlphaBits)
         delta++;

      if (delta < bestdelta) {
         bestindex = index;
         bestdelta = delta;
         if (bestdelta == 0)
            break;
      }
   }

   if (bestindex == count)
      return 0;

   return bestindex + 1;
}

Beispiel #3

Datei: stw_framebuffer.c Projekt: MIPS/external-mesa3d

BOOL APIENTRY
DrvSetPixelFormat(HDC hdc, LONG iPixelFormat)
{
   uint count;
   uint index;
   struct stw_framebuffer *fb;

   if (!stw_dev)
      return FALSE;

   index = (uint) iPixelFormat - 1;
   count = stw_pixelformat_get_count();
   if (index >= count)
      return FALSE;

   fb = stw_framebuffer_from_hdc_locked(hdc);
   if (fb) {
      /*
       * SetPixelFormat must be called only once.  However ignore
       * pbuffers, for which the framebuffer object is created first.
       */
      boolean bPbuffer = fb->bPbuffer;

      stw_framebuffer_unlock( fb );

      return bPbuffer;
   }

   fb = stw_framebuffer_create(hdc, iPixelFormat);
   if (!fb) {
      return FALSE;
   }

   stw_framebuffer_unlock( fb );

   /* Some applications mistakenly use the undocumented wglSetPixelFormat
    * function instead of SetPixelFormat, so we call SetPixelFormat here to
    * avoid opengl32.dll's wglCreateContext to fail */
   if (GetPixelFormat(hdc) == 0) {
      BOOL bRet = SetPixelFormat(hdc, iPixelFormat, NULL);
      if (!bRet) {
	  debug_printf("SetPixelFormat failed\n");
      }
   }

   return TRUE;
}