check matrix does not have rotation or perspective transformation

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 632 matching lines @@
 
 #if defined(SHADER_AA_FILL_RECT) || !defined(IGNORE_ROT_AA_RECT_OPT)
     } else {
         if (!combinedMatrix.preservesRightAngles()) {
             return false;
         }
     }
 #endif
 
     combinedMatrix.mapRect(devBoundRect, rect);
+    if (!combinedMatrix.rectStaysRect()) {
+        return true;
+    }
+
     if (strokeWidth < 0) {
         return !is_irect(*devBoundRect);
     }
 
     return true;
 }
 
 static inline bool rect_contains_inclusive(const SkRect& rect, const SkPoint& point) {
     return point.fX >= rect.fLeft && point.fX <= rect.fRight &&
            point.fY >= rect.fTop && point.fY <= rect.fBottom;
@@ skipping 1046 matching lines @@
     fResourceCache2->printStats();
 }
 #endif
 
 #if GR_GPU_STATS
 const GrContext::GPUStats* GrContext::gpuStats() const {
     return fGpu->gpuStats();
 }
 #endif