Add support for GL_*_shader_framebuffer_fetch

src/gpu/GrDrawTarget.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.
  */
 
 
 
@@ skipping 389 matching lines @@
 
     GrAssert(drawState.validateVertexAttribs());
 #endif
     if (NULL == drawState.getRenderTarget()) {
         return false;
     }
     return true;
 }
 
 bool GrDrawTarget::setupDstReadIfNecessary(DrawInfo* info) {
-    if (!this->getDrawState().willEffectReadDst()) {
+    if (this->caps()->dstReadInShaderSupport() || !this->getDrawState().willEffectReadDst()) {
         return true;
     }
     GrRenderTarget* rt = this->drawState()->getRenderTarget();
 
     const GrClipData* clip = this->getClip();
     GrIRect copyRect;
     clip->getConservativeBounds(this->getDrawState().getRenderTarget(), &copyRect);
     SkIRect drawIBounds;
     if (info->getDevIBounds(&drawIBounds)) {
         if (!copyRect.intersect(drawIBounds)) {
@@ skipping 518 matching lines @@
     GrPrintf("8 Bit Palette Support       : %s\n", gNY[f8BitPaletteSupport]);
     GrPrintf("NPOT Texture Tile Support   : %s\n", gNY[fNPOTTextureTileSupport]);
     GrPrintf("Two Sided Stencil Support   : %s\n", gNY[fTwoSidedStencilSupport]);
     GrPrintf("Stencil Wrap Ops  Support   : %s\n", gNY[fStencilWrapOpsSupport]);
     GrPrintf("HW AA Lines Support         : %s\n", gNY[fHWAALineSupport]);
     GrPrintf("Shader Derivative Support   : %s\n", gNY[fShaderDerivativeSupport]);
     GrPrintf("Geometry Shader Support     : %s\n", gNY[fGeometryShaderSupport]);
     GrPrintf("Dual Source Blending Support: %s\n", gNY[fDualSourceBlendingSupport]);
     GrPrintf("Buffer Lock Support         : %s\n", gNY[fBufferLockSupport]);
     GrPrintf("Path Stenciling Support     : %s\n", gNY[fPathStencilingSupport]);
+    GrPrintf("Dst Read In Shader Support  : %s\n", gNY[fDstReadInShaderSupport]);
     GrPrintf("Max Texture Size            : %d\n", fMaxTextureSize);
     GrPrintf("Max Render Target Size      : %d\n", fMaxRenderTargetSize);
     GrPrintf("Max Sample Count            : %d\n", fMaxSampleCount);
 }