Implement transform/clip support for Android WebView.

cc/output/renderer_pixeltest.cc

 // Copyright 2012 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.
 
 #include "base/message_loop.h"
 #include "cc/layers/append_quads_data.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/quads/draw_quad.h"
 #include "cc/quads/picture_draw_quad.h"
 #include "cc/resources/platform_color.h"
@@ skipping 76 matching lines @@
                0,             // mask_resource_id
                rect,          // contents_changed_since_last_frame
                gfx::RectF(),  // mask_uv_rect
                WebKit::WebFilterOperations(),   // foreground filters
                skia::RefPtr<SkImageFilter>(),   // foreground filter
                WebKit::WebFilterOperations());  // background filters
 
   return quad.PassAs<DrawQuad>();
 }
 
-typedef ::testing::Types<GLRenderer, SoftwareRenderer> RendererTypes;
+typedef ::testing::Types<GLRenderer,
+                         SoftwareRenderer,
+                         GLRendererWithExpandedViewport,
+                         SoftwareRendererWithExpandedViewport> RendererTypes;
 TYPED_TEST_CASE(RendererPixelTest, RendererTypes);
 
 typedef ::testing::Types<GLRenderer,
                          GLRendererWithSkiaGPUBackend,
                          SoftwareRenderer> RendererTypesWithSkiaGPUBackend;
 template <typename RendererType>
 class RendererPixelTestWithSkiaGPUBackend
     : public RendererPixelTest<RendererType> {
 };
 TYPED_TEST_CASE(RendererPixelTestWithSkiaGPUBackend,
@@ skipping 93 matching lines @@
   pass_list.push_back(root_pass.Pass());
 
   EXPECT_TRUE(this->RunPixelTestWithReadbackTarget(
       &pass_list,
       child_pass_ptr,
       base::FilePath(FILE_PATH_LITERAL("green_small.png")),
       ExactPixelComparator(true)));
 }
 
 TYPED_TEST(RendererPixelTest, FastPassColorFilterAlpha) {
+  // FIXME(aelias): Alpha value off by 1 in expanded-viewport software renderer.

[enne (OOO), 2013/06/06 19:07:49]

Why doesn't the fuzzy comparator handle this?

[aelias_OOO_until_Jul13, 2013/06/06 22:24:51]

Ah, it was running the exact comparator because it was specializing for the
exact template type.  I activated the fuzzy comparator and reenabled these
tests, thanks.

+  if (this->output_surface_->software_device() && this->ExpandedViewport())
+    return;
+
   gfx::Rect viewport_rect(this->device_viewport_size_);
 
   RenderPass::Id root_pass_id(1, 1);
   scoped_ptr<RenderPass> root_pass =
       CreateTestRootRenderPass(root_pass_id, viewport_rect);
 
   RenderPass::Id child_pass_id(2, 2);
   gfx::Rect pass_rect(this->device_viewport_size_);
   gfx::Transform transform_to_root;
   scoped_ptr<RenderPass> child_pass =
@@ skipping 79 matching lines @@
 
   // This test has alpha=254 for the software renderer vs. alpha=255 for the gl
   // renderer so use a fuzzy comparator.
   EXPECT_TRUE(this->RunPixelTest(
       &pass_list,
       base::FilePath(FILE_PATH_LITERAL("blue_yellow_alpha.png")),
       FuzzyForSoftwareOnlyPixelComparator<TypeParam>(false)));
 }
 
 TYPED_TEST(RendererPixelTest, FastPassColorFilterAlphaTranslation) {
+  // FIXME(aelias): Alpha value off by 1 in expanded-viewport software renderer.
+  if (this->output_surface_->software_device() && this->ExpandedViewport())
+    return;
+
   gfx::Rect viewport_rect(this->device_viewport_size_);
 
   RenderPass::Id root_pass_id(1, 1);
   scoped_ptr<RenderPass> root_pass =
       CreateTestRootRenderPass(root_pass_id, viewport_rect);
 
   RenderPass::Id child_pass_id(2, 2);
   gfx::Rect pass_rect(this->device_viewport_size_);
   gfx::Transform transform_to_root;
   scoped_ptr<RenderPass> child_pass =
@@ skipping 653 matching lines @@
 
   EXPECT_TRUE(this->RunPixelTest(
       &pass_list,
       base::FilePath(FILE_PATH_LITERAL("four_blue_green_checkers.png")),
       ExactPixelComparator(true)));
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace
 }  // namespace cc