Key shader on whether frag pos read is relative to top-left or bottom-left

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->caps()->dstReadInShaderSupport() || !this->getDrawState().willEffectReadDst()) {
+    if (this->caps()->dstReadInShaderSupport() || !this->getDrawState().willEffectReadDstColor()) {
         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 211 matching lines @@
         GrPoint* coords = GrTCast<GrPoint*>(GrTCast<intptr_t>(geo.vertices()) +
                                             sizeof(GrPoint));
         coords->setRectFan(localRect->fLeft, localRect->fTop,
                            localRect->fRight, localRect->fBottom,
                            vsize);
         if (NULL != localMatrix) {
             localMatrix->mapPointsWithStride(coords, vsize, 4);
         }
     }
     SkTLazy<SkRect> bounds;
-    if (this->getDrawState().willEffectReadDst()) {
+    if (this->getDrawState().willEffectReadDstColor()) {
         bounds.init();
         this->getDrawState().getViewMatrix().mapRect(bounds.get(), rect);
     }
 
     this->drawNonIndexed(kTriangleFan_GrPrimitiveType, 0, 4, bounds.getMaybeNull());
 }
 
 void GrDrawTarget::clipWillBeSet(const GrClipData* clipData) {
 }
 
@@ skipping 291 matching lines @@
     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);
 }