svga: add comment about unsupported blend modes

This commit is contained in:
Brian Paul 2016-08-19 09:36:02 -06:00
parent b1772651b7
commit 93779b87a1

View File

@ -37,6 +37,9 @@
static inline unsigned
svga_translate_blend_factor(const struct svga_context *svga, unsigned factor)
{
/* Note: there is no SVGA3D_BLENDOP_[INV]BLENDFACTORALPHA so
* we can't translate PIPE_BLENDFACTOR_[INV_]CONST_ALPHA properly.
*/
switch (factor) {
case PIPE_BLENDFACTOR_ZERO: return SVGA3D_BLENDOP_ZERO;
case PIPE_BLENDFACTOR_SRC_ALPHA: return SVGA3D_BLENDOP_SRCALPHA;