Use draw buffer for texture copy impl.

src/gpu/GrContext.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 "GrContext.h"
@@ skipping 1558 matching lines @@
     if (NULL == target) {
         return;
     }
     target->discard(renderTarget);
 }
 
 void GrContext::copyTexture(GrTexture* src, GrRenderTarget* dst, const SkIPoint* topLeft) {
     if (NULL == src || NULL == dst) {
         return;
     }
+
     ASSERT_OWNED_RESOURCE(src);
-
+    ASSERT_OWNED_RESOURCE(dst);
 
     if (src->hasPendingWrite() || dst->hasPendingIO()) {
         this->flush();
     }
 
-    GrDrawTarget::AutoStateRestore asr(fGpu, GrDrawTarget::kReset_ASRInit);
-    GrDrawState* drawState = fGpu->drawState();
+    GrDrawTarget* target = this->prepareToDraw(NULL, kYes_BufferedDraw, NULL, NULL);
+    GrDrawTarget::AutoStateRestore asr(target, GrDrawTarget::kReset_ASRInit);
+    GrDrawState* drawState = target->drawState();
+
+    drawState->disableState(GrDrawState::kClip_StateBit);
     drawState->setRenderTarget(dst);
+
     SkMatrix sampleM;
     sampleM.setIDiv(src->width(), src->height());
     SkIRect srcRect = SkIRect::MakeWH(dst->width(), dst->height());
     if (topLeft) {
         srcRect.offset(*topLeft);
     }
     SkIRect srcBounds = SkIRect::MakeWH(src->width(), src->height());
     if (!srcRect.intersect(srcBounds)) {
         return;
     }
     sampleM.preTranslate(SkIntToScalar(srcRect.fLeft), SkIntToScalar(srcRect.fTop));
     drawState->addColorTextureEffect(src, sampleM);
+
     SkRect dstR = SkRect::MakeWH(SkIntToScalar(srcRect.width()), SkIntToScalar(srcRect.height()));
-    fGpu->drawSimpleRect(dstR);
+    target->drawSimpleRect(dstR);
 }
 
 bool GrContext::writeRenderTargetPixels(GrRenderTarget* target,
                                         int left, int top, int width, int height,
                                         GrPixelConfig srcConfig,
                                         const void* buffer,
                                         size_t rowBytes,
                                         uint32_t flags) {
     ASSERT_OWNED_RESOURCE(target);
 
@@ skipping 333 matching lines @@
     fResourceCache->printStats();
 }
 #endif
 
 #if GR_GPU_STATS
 const GrContext::GPUStats* GrContext::gpuStats() const {
     return fGpu->gpuStats();
 }
 #endif