Add ability to extract YUV planes from SkImage

gm/yuvtorgbeffect.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.
  */
 
 // This test only works with the GPU backend.
 
 #include "gm.h"
 
 #if SK_SUPPORT_GPU
 
 #include "GrContext.h"
 #include "GrDrawContext.h"
 #include "GrPipelineBuilder.h"
 #include "SkBitmap.h"
 #include "SkGr.h"
 #include "SkGradientShader.h"
 #include "batches/GrDrawBatch.h"
 #include "batches/GrRectBatchFactory.h"
-#include "effects/GrYUVtoRGBEffect.h"
+#include "effects/GrYUVEffect.h"
 
 #define YSIZE 8
 #define USIZE 4
 #define VSIZE 4
 
 namespace skiagm {
 /**
  * This GM directly exercises GrYUVtoRGBEffect.
  */
 class YUVtoRGBEffect : public GM {
@@ skipping 77 matching lines @@
             SkScalar y = kDrawPad + kTestPad + space * kColorSpaceOffset;
             SkScalar x = kDrawPad + kTestPad;
 
             const int indices[6][3] = {{0, 1, 2}, {0, 2, 1}, {1, 0, 2},
                                        {1, 2, 0}, {2, 0, 1}, {2, 1, 0}};
 
             for (int i = 0; i < 6; ++i) {
                 GrPipelineBuilder pipelineBuilder;
                 pipelineBuilder.setXPFactory(
                     GrPorterDuffXPFactory::Create(SkXfermode::kSrc_Mode))->unref();
-                SkAutoTUnref<GrFragmentProcessor> fp(
-                            GrYUVtoRGBEffect::Create(texture[indices[i][0]],
-                                                     texture[indices[i][1]],
-                                                     texture[indices[i][2]],
-                                                     sizes,
-                                                     static_cast<SkYUVColorSpace>(space)));
+                SkAutoTUnref<const GrFragmentProcessor> fp(
+                            GrYUVEffect::CreateYUVToRGB(texture[indices[i][0]],
+                                                        texture[indices[i][1]],
+                                                        texture[indices[i][2]],
+                                                        sizes,
+                                                        static_cast<SkYUVColorSpace>(space)));
                 if (fp) {
                     SkMatrix viewMatrix;
                     viewMatrix.setTranslate(x, y);
                     pipelineBuilder.setRenderTarget(rt);
                     pipelineBuilder.addColorFragmentProcessor(fp);
                     SkAutoTUnref<GrDrawBatch> batch(
                             GrRectBatchFactory::CreateNonAAFill(GrColor_WHITE, viewMatrix,
                                                                 renderRect, nullptr, nullptr));
                     drawContext->internal_drawBatch(pipelineBuilder, batch);
                 }
                 x += renderRect.width() + kTestPad;
             }
         }
      }
 
 private:
     SkBitmap fBmp[3];
 
     typedef GM INHERITED;
 };
 
 DEF_GM(return new YUVtoRGBEffect;)
 }
 
 #endif