Add support for using glCopyTexSubImage2D when possible to copy surfaces.

src/gpu/GrInOrderDrawBuffer.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 "GrInOrderDrawBuffer.h"
@@ skipping 522 matching lines @@
     }
 }
 
 bool GrInOrderDrawBuffer::onCanCopySurface(GrSurface* dst,
                                            GrSurface* src,
                                            const SkIRect& srcRect,
                                            const SkIPoint& dstPoint) {
     return fDstGpu->canCopySurface(dst, src, srcRect, dstPoint);
 }
 
+void GrInOrderDrawBuffer::initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc) {
+    fDstGpu->initCopySurfaceDstDesc(src, desc);
+}
+
 void GrInOrderDrawBuffer::willReserveVertexAndIndexSpace(
                                 int vertexCount,
                                 int indexCount) {
     // We use geometryHints() to know whether to flush the draw buffer. We
     // can't flush if we are inside an unbalanced pushGeometrySource.
     // Moreover, flushing blows away vertex and index data that was
     // previously reserved. So if the vertex or index data is pulled from
     // reserved space and won't be released by this request then we can't
     // flush.
     bool insideGeoPush = fGeoPoolStateStack.count() > 1;
@@ skipping 240 matching lines @@
     fCmds.push_back(kCopySurface_Cmd);
     return &fCopySurfaces.push_back();
 }
 
 
 void GrInOrderDrawBuffer::clipWillBeSet(const GrClipData* newClipData) {
     INHERITED::clipWillBeSet(newClipData);
     fClipSet = true;
     fClipProxyState = kUnknown_ClipProxyState;
 }