Transparency

skia/ext/platform_canvas_unittest.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // TODO(awalker): clean up the const/non-const reference handling in this test
 
 #include "build/build_config.h"
 
 #if !defined(OS_WIN)
 #include <unistd.h>
@@ skipping 98 matching lines @@
         y_(y),
         w_(w),
         h_(h) {
     SkRect bounds;
     bounds.set(SkIntToScalar(x_), SkIntToScalar(y_),
                SkIntToScalar(right()), SkIntToScalar(bottom()));
     canvas_.saveLayer(&bounds, NULL);
   }
 
   ~LayerSaver() {
-#if defined(OS_WIN)
-    canvas_.getTopPlatformDevice().fixupAlphaBeforeCompositing();
-#endif
     canvas_.restore();
   }
 
   int x() const { return x_; }
   int y() const { return y_; }
   int w() const { return w_; }
   int h() const { return h_; }
 
   // Returns the EXCLUSIVE far bounds of the layer.
   int right() const { return x_ + w_; }
@@ skipping 38 matching lines @@
 TEST(PlatformCanvas, ClipRegion) {
   // Initialize a white canvas
   PlatformCanvas canvas(16, 16, true);
   canvas.drawColor(SK_ColorWHITE);
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
 
   // Test that initially the canvas has no clip region, by filling it
   // with a black rectangle.
   // Note: Don't use LayerSaver, since internally it sets a clip region.
   DrawNativeRect(canvas, 0, 0, 16, 16);
-#if defined(OS_WIN)
-  canvas.getTopPlatformDevice().fixupAlphaBeforeCompositing();
-#endif
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorBLACK));
 
   // Test that intersecting disjoint clip rectangles sets an empty clip region
   canvas.drawColor(SK_ColorWHITE);
   EXPECT_TRUE(VerifyCanvasColor(canvas, SK_ColorWHITE));
   {
     LayerSaver layer(canvas, 0, 0, 16, 16);
     AddClip(canvas, 2, 3, 4, 5);
     AddClip(canvas, 4, 9, 10, 10);
     DrawNativeRect(canvas, 0, 0, 16, 16);
@@ skipping 97 matching lines @@
     canvas.translate(1, 1);
     AddClip(canvas, kInnerX, kInnerY, kInnerW, kInnerH);
     DrawNativeRect(canvas, 0, 0, 100, 100);
   }
   canvas.restore();
   EXPECT_TRUE(VerifyBlackRect(canvas, kInnerX + 2, kInnerY + 2,
                               kInnerW, kInnerH));
 }
 
 }  // namespace skia