Disabled YUV decoding for subsets

src/gpu/SkGr.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGr.h"
 #include "SkColorFilter.h"
 #include "SkConfig8888.h"
@@ skipping 202 matching lines @@
     } else {
         return NULL;
     }
 
     return sk_gr_allocate_texture(ctx, cache, params, bm, desc, bytes, 0);
 }
 #endif   // SK_IGNORE_ETC1_SUPPORT
 
 static GrTexture *load_yuv_texture(GrContext* ctx, bool cache, const GrTextureParams* params,
                                    const SkBitmap& bm, const GrTextureDesc& desc) {
+    // Subsets are not supported, the whole pixelRef is loaded when using YUV decoding
+    if ((bm.pixelRef()->info().width()  != bm.info().width()) ||
+        (bm.pixelRef()->info().height() != bm.info().height())) {
+        return NULL;
+    }
+
     SkPixelRef* pixelRef = bm.pixelRef();
     SkISize yuvSizes[3];
     if ((NULL == pixelRef) || !pixelRef->getYUV8Planes(yuvSizes, NULL, NULL, NULL)) {
         return NULL;
     }
 
     // Allocate the memory for YUV
     size_t totalSize(0);
     size_t sizes[3], rowBytes[3];
     for (int i = 0; i < 3; ++i) {
@@ skipping 336 matching lines @@
         if (shader->asFragmentProcessor(context, skPaint, NULL, &paintColor, &fp) && fp) {
             grPaint->addColorProcessor(fp)->unref();
             constantColor = false;
         }
     }
 
     // The grcolor is automatically set when calling asFragmentProcessor.
     // If the shader can be seen as an effect it returns true and adds its effect to the grpaint.
     SkPaint2GrPaintNoShader(context, skPaint, paintColor, constantColor, grPaint);
 }