#include "pipe/p_debug.h"
#include "stw_pixelformat.h"
+#include "stw_public.h"
#define MAX_PIXELFORMATS 16
return count;
}
+/* 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 = pixelformat_get_count();
+ bestindex = count;
+ bestdelta = 0xffffffff;
+
+ for (index = 0; index < count; index++) {
+ uint delta = 0;
+ const struct pixelformat_info *pf = pixelformat_get_info( index );
+
+ if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) &&
+ !!(ppfd->dwFlags & PFD_DOUBLEBUFFER) !=
+ !!(pf->flags & PF_FLAG_DOUBLEBUFFER))
+ continue;
+
+ if (ppfd->cColorBits != pf->color.redbits + pf->color.greenbits + pf->color.bluebits)
+ delta += 8;
+
+ if (ppfd->cDepthBits != pf->depth.depthbits)
+ delta += 4;
+
+ if (ppfd->cStencilBits != pf->depth.stencilbits)
+ delta += 2;
+
+ if (ppfd->cAlphaBits != pf->alpha.alphabits)
+ delta++;
+
+ if (delta < bestdelta) {
+ bestindex = index;
+ bestdelta = delta;
+ if (bestdelta == 0)
+ break;
+ }
+ }
+
+ if (bestindex == count)
+ return 0;
+
+ return bestindex + 1;
+}
+
int
stw_pixelformat_get(