Add Rec709 YUV color space support to GrYUVtoRGBEffect.

src/gpu/effects/GrYUVtoRGBEffect.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrYUVtoRGBEffect.h"
 
 #include "GrCoordTransform.h"
@@ skipping 36 matching lines @@
     const char* name() const override { return "YUV to RGB"; }
 
     SkYUVColorSpace getColorSpace() const {
         return fColorSpace;
     }
 
     class GLProcessor : public GrGLFragmentProcessor {
     public:
         static const GrGLfloat kJPEGConversionMatrix[16];
         static const GrGLfloat kRec601ConversionMatrix[16];
+        static const GrGLfloat kRec709ConversionMatrix[16];
 
         // this class always generates the same code.
         static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuilder*) {}
 
         GLProcessor(const GrProcessor&) {}
 
         virtual void emitCode(GrGLFPBuilder* builder,
                               const GrFragmentProcessor&,
                               const char* outputColor,
                               const char* inputColor,
@@ skipping 17 matching lines @@
         virtual void setData(const GrGLProgramDataManager& pdman,
                              const GrProcessor& processor) override {
             const YUVtoRGBEffect& yuvEffect = processor.cast<YUVtoRGBEffect>();
             switch (yuvEffect.getColorSpace()) {
                 case kJPEG_SkYUVColorSpace:
                     pdman.setMatrix4f(fMatrixUni, kJPEGConversionMatrix);
                     break;
                 case kRec601_SkYUVColorSpace:
                     pdman.setMatrix4f(fMatrixUni, kRec601ConversionMatrix);
                     break;
+                case kRec709_SkYUVColorSpace:
+                    pdman.setMatrix4f(fMatrixUni, kRec709ConversionMatrix);
+                    break;
             }
         }
 
     private:
         GrGLProgramDataManager::UniformHandle fMatrixUni;
 
         typedef GrGLFragmentProcessor INHERITED;
     };
 
     virtual void getGLProcessorKey(const GrGLSLCaps& caps,
@@ skipping 50 matching lines @@
 const GrGLfloat YUVtoRGBEffect::GLProcessor::kJPEGConversionMatrix[16] = {
     1.0f,  0.0f,      1.402f,  -0.701f,
     1.0f, -0.34414f, -0.71414f, 0.529f,
     1.0f,  1.772f,    0.0f,    -0.886f,
     0.0f,  0.0f,      0.0f,     1.0};
 const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec601ConversionMatrix[16] = {
     1.164f,  0.0f,    1.596f, -0.87075f,
     1.164f, -0.391f, -0.813f,  0.52925f,
     1.164f,  2.018f,  0.0f,   -1.08175f,
     0.0f,    0.0f,    0.0f,    1.0};
+const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec709ConversionMatrix[16] = {
+    1.164f,  0.0f,    1.793f, -0.96925f,
+    1.164f, -0.213f, -0.533f,  0.30025f,
+    1.164f,  2.112f,  0.0f,   -1.12875f,
+    0.0f,    0.0f,    0.0f,    1.0f};
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 GrFragmentProcessor*
 GrYUVtoRGBEffect::Create(GrProcessorDataManager* procDataManager, GrTexture* yTexture,
                          GrTexture* uTexture, GrTexture* vTexture, const SkISize sizes[3],
                          SkYUVColorSpace colorSpace) {
     SkASSERT(procDataManager && yTexture && uTexture && vTexture && sizes);
     return YUVtoRGBEffect::Create(procDataManager, yTexture, uTexture, vTexture, sizes, colorSpace);
 }