Groundwork for nonlinear blending mode in Ganesh

Changing a bit of plumbing so we have what we need for one-off color
conversion, and fixing the logic in some of our surface validation.

Plenty more to come, want to submit this stuff in manageable chunks.

BUG=skia:6242

Change-Id: Iac9954c7cc490cc99663db4b9cdf5d6388fc39c7
Reviewed-on: https://skia-review.googlesource.com/9389
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gpu/GrSurfaceContext.cpp b/src/gpu/GrSurfaceContext.cpp
index 7e4d4fb4b5..d3225e3225 100644
--- a/src/gpu/GrSurfaceContext.cpp
+++ b/src/gpu/GrSurfaceContext.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "GrSurfaceContext.h"
+#include "SkColorSpace_Base.h"
 
 #include "../private/GrAuditTrail.h"
 
@@ -27,3 +28,7 @@ GrSurfaceContext::GrSurfaceContext(GrContext* context,
 #endif
     , fDrawingManager(drawingMgr) {
 }
+
+bool GrSurfaceContext::isGammaCorrect() const {
+    return fColorSpace && !as_CSB(fColorSpace)->nonLinearBlending();
+}