cc: Scale checkerboard quads by the device scale factor.

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/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/quads/texture_draw_quad.h"
@@ skipping 2475 matching lines @@
 
   RenderPassList pass_list;
   pass_list.push_back(pass.Pass());
 
   EXPECT_TRUE(this->RunPixelTest(
       &pass_list,
       base::FilePath(FILE_PATH_LITERAL("wrap_mode_repeat.png")),
       FuzzyPixelOffByOneComparator(true)));
 }
 
+TYPED_TEST(RendererPixelTest, Checkerboards) {
+  gfx::Rect rect(this->device_viewport_size_);
+
+  RenderPassId id(1, 1);
+  scoped_ptr<RenderPass> pass = CreateTestRootRenderPass(id, rect);
+
+  gfx::Transform scale;
+  scale.Scale(2.f, 2.f);
+
+  SharedQuadState* shared_state =
+      CreateTestSharedQuadState(scale, rect, pass.get());
+
+  // The color's alpha value is not used.
+  SkColor color = SK_ColorGREEN;
+  color = SkColorSetA(color, 0);
+
+  CheckerboardDrawQuad* quad =
+      pass->CreateAndAppendDrawQuad<CheckerboardDrawQuad>();
+  // Appends a checkerboard quad with a scale of 1, but a shared quad state
+  // with a scale of 2. The checkers should be scaled by 1 * 2 = 2.
+  quad->SetNew(shared_state, gfx::Rect(this->device_viewport_size_),
+               gfx::Rect(this->device_viewport_size_), color, 1.f);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+
+  const char* path =
+      IsSoftwareRenderer<TypeParam>() ? "green.png" : "green_checkers.png";
+
+  EXPECT_TRUE(this->RunPixelTest(&pass_list,
+                                 base::FilePath(FILE_PATH_LITERAL(path)),
+                                 ExactPixelComparator(true)));
+}
+
+TYPED_TEST(RendererPixelTest, CheckerboardsScaled) {
+  gfx::Rect rect(this->device_viewport_size_);
+
+  RenderPassId id(1, 1);
+  scoped_ptr<RenderPass> pass = CreateTestRootRenderPass(id, rect);
+
+  gfx::Transform scale;
+  scale.Scale(2.f, 2.f);
+
+  SharedQuadState* shared_state =
+      CreateTestSharedQuadState(scale, rect, pass.get());
+
+  // The color's alpha value is not used.
+  SkColor color = SK_ColorGREEN;
+  color = SkColorSetA(color, 0);
+
+  CheckerboardDrawQuad* quad =
+      pass->CreateAndAppendDrawQuad<CheckerboardDrawQuad>();
+  // Appends a checkerboard quad with a scale of 2, and a shared quad state
+  // with a scale of 2. The checkers should be scaled by 2 * 2 = 4.
+  quad->SetNew(shared_state, gfx::Rect(this->device_viewport_size_),
+               gfx::Rect(this->device_viewport_size_), color, 2.f);
+
+  RenderPassList pass_list;
+  pass_list.push_back(pass.Pass());
+
+  const char* path =
+      IsSoftwareRenderer<TypeParam>() ? "green.png" : "green_checkers_big.png";
+
+  EXPECT_TRUE(this->RunPixelTest(&pass_list,
+                                 base::FilePath(FILE_PATH_LITERAL(path)),
+                                 ExactPixelComparator(true)));
+}
+
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace
 }  // namespace cc