new API for retrieving YUV data

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 "GrDrawTargetCaps.h"
@@ skipping 216 matching lines @@
     SkYUVPlanesCache::Info yuvInfo;
     SkAutoTUnref<SkCachedData> cachedData(
         SkYUVPlanesCache::FindAndRef(pixelRef->getGenerationID(), &yuvInfo));
 
     void* planes[3];
     if (cachedData && cachedData->data()) {
         planes[0] = (void*)cachedData->data();
         planes[1] = (uint8_t*)planes[0] + yuvInfo.fSizeInMemory[0];
         planes[2] = (uint8_t*)planes[1] + yuvInfo.fSizeInMemory[1];
     } else {
+        SkISize optimalAllocationSizes[3];
         // Fetch yuv plane sizes for memory allocation. Here, width and height can be
         // rounded up to JPEG block size and be larger than the image's width and height.
-        if (!pixelRef->getYUV8Planes(yuvInfo.fSize, NULL, NULL, NULL)) {
+        if (!pixelRef->queryYUV8(yuvInfo.fSize, optimalAllocationSizes)) {
             return NULL;
         }
 
         // Allocate the memory for YUV
         size_t totalSize(0);
         for (int i = 0; i < 3; ++i) {
-            yuvInfo.fRowBytes[i] = yuvInfo.fSize[i].fWidth;
-            yuvInfo.fSizeInMemory[i] = yuvInfo.fRowBytes[i] * yuvInfo.fSize[i].fHeight;
+            yuvInfo.fRowBytes[i] = optimalAllocationSizes[i].width();
+            yuvInfo.fSizeInMemory[i] = yuvInfo.fRowBytes[i] * optimalAllocationSizes[i].height();
             totalSize += yuvInfo.fSizeInMemory[i];
         }
         cachedData.reset(SkResourceCache::NewCachedData(totalSize));
         planes[0] = cachedData->writable_data();
         planes[1] = (uint8_t*)planes[0] + yuvInfo.fSizeInMemory[0];
         planes[2] = (uint8_t*)planes[1] + yuvInfo.fSizeInMemory[1];
 
         // Get the YUV planes and update plane sizes to actual image size
-        if (!pixelRef->getYUV8Planes(yuvInfo.fSize, planes, yuvInfo.fRowBytes,
-                                     &yuvInfo.fColorSpace)) {
+        if (!pixelRef->getYUV8(optimalAllocationSizes, planes, &yuvInfo.fColorSpace)) {
             return NULL;
         }
 
         // Decoding is done, cache the resulting YUV planes
         SkYUVPlanesCache::Add(pixelRef->getGenerationID(), cachedData, &yuvInfo);
     }
 
     GrSurfaceDesc yuvDesc;
     yuvDesc.fConfig = kAlpha_8_GrPixelConfig;
     SkAutoTUnref<GrTexture> yuvTextures[3];
@@ skipping 316 matching lines @@
         if (shader->asFragmentProcessor(context, skPaint, viewM, 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);
 }