commit 8917d62ef4d9bde9ec4f879dc42b309b03a0ad98
author cdalton <cdalton@nvidia.com> Wed May 06 13:40:21 2015 -0700
committer Commit bot <commit-bot@chromium.org> Wed May 06 13:40:21 2015 -0700
tree 155b2ec06eecc8aadee64f9152b6ea95515778ce
parent e0cab96599764f7611de015f558a6b22162c3eda

Implement support for KHR_blend_equation_advanced

Uses KHR(or NV)_blend_equation_advanced to implement custom Xfer modes
in hardware.

BUG=skia:

Review URL: https://codereview.chromium.org/1037123003

src/gpu/gl/GrGLGpu.h

diff --git a/src/gpu/gl/GrGLGpu.h b/src/gpu/gl/GrGLGpu.h
index 5c8eea5..4d26ad8 100644
--- a/src/gpu/gl/GrGLGpu.h
+++ b/src/gpu/gl/GrGLGpu.h
@@ -438,6 +438,7 @@
     } fHWGeometryState;
 
     struct {
+        GrBlendEquation fEquation;
         GrBlendCoeff    fSrcCoeff;
         GrBlendCoeff    fDstCoeff;
         GrColor         fConstColor;
@@ -445,6 +446,7 @@
         TriState        fEnabled;
 
         void invalidate() {
+            fEquation = kInvalid_GrBlendEquation;
             fSrcCoeff = kInvalid_GrBlendCoeff;
             fDstCoeff = kInvalid_GrBlendCoeff;
             fConstColorValid = false;