Add read/write-Pixels to GrDrawContext

src/gpu/SkGpuDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 187 matching lines @@
 
     return filter->filterImage(srcImg, ctx, offset);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 bool SkGpuDevice::onReadPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBytes,
                                int x, int y) {
     ASSERT_SINGLE_OWNER
 
-    // TODO: teach fRenderTarget to take ImageInfo directly to specify the src pixels
-    GrPixelConfig config = SkImageInfo2GrPixelConfig(dstInfo, *fContext->caps());
-    if (kUnknown_GrPixelConfig == config) {
-        return false;
-    }
-
-    uint32_t flags = 0;
-    if (kUnpremul_SkAlphaType == dstInfo.alphaType()) {
-        flags = GrContext::kUnpremul_PixelOpsFlag;
-    }
-    return fDrawContext->accessRenderTarget()->readPixels(x, y,
-                                                          dstInfo.width(), dstInfo.height(),
-                                                          config, dstPixels,
-                                                          dstRowBytes, flags);
+    return fDrawContext->readPixels(dstInfo, dstPixels, dstRowBytes, x, y);
 }
 
-bool SkGpuDevice::onWritePixels(const SkImageInfo& info, const void* pixels, size_t rowBytes,
-                                int x, int y) {
+bool SkGpuDevice::onWritePixels(const SkImageInfo& srcInfo, const void* srcPixels,
+                                size_t srcRowBytes, int x, int y) {
     ASSERT_SINGLE_OWNER
-    // TODO: teach fRenderTarget to take ImageInfo directly to specify the src pixels
-    GrPixelConfig config = SkImageInfo2GrPixelConfig(info, *fContext->caps());
-    if (kUnknown_GrPixelConfig == config) {
-        return false;
-    }
-    uint32_t flags = 0;
-    if (kUnpremul_SkAlphaType == info.alphaType()) {
-        flags = GrContext::kUnpremul_PixelOpsFlag;
-    }
-    return fDrawContext->accessRenderTarget()->writePixels(x, y, info.width(), info.height(),
-                                                           config, pixels, rowBytes, flags);
+
+    return fDrawContext->writePixels(srcInfo, srcPixels, srcRowBytes, x, y);
 }
 
 bool SkGpuDevice::onAccessPixels(SkPixmap* pmap) {
     ASSERT_SINGLE_OWNER
     return false;
 }
 
 // call this every draw call, to ensure that the context reflects our state,
 // and not the state from some other canvas/device
 void SkGpuDevice::prepareDraw(const SkDraw& draw) {
@@ skipping 1571 matching lines @@
 }
 
 SkImageFilterCache* SkGpuDevice::getImageFilterCache() {
     ASSERT_SINGLE_OWNER
     // We always return a transient cache, so it is freed after each
     // filter traversal.
     return SkImageFilterCache::Create(kDefaultImageFilterCacheSize);
 }
 
 #endif