cc/layers/io_surface_layer_impl_unittest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/layers/io_surface_layer_impl.h"
   6
   7 #include "cc/test/layer_test_common.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace cc {
  11 namespace {
  12
  13 TEST(IOSurfaceLayerImplTest, Occlusion) {
  14   gfx::Size layer_size(1000, 1000);
  15   gfx::Size viewport_size(1000, 1000);
  16
  17   LayerTestCommon::LayerImplTest impl;
  18
  19   IOSurfaceLayerImpl* io_surface_layer_impl =
  20       impl.AddChildToRoot<IOSurfaceLayerImpl>();
  21   io_surface_layer_impl->SetBounds(layer_size);
  22   io_surface_layer_impl->SetContentBounds(layer_size);
  23   io_surface_layer_impl->SetDrawsContent(true);
  24
  25   impl.CalcDrawProps(viewport_size);
  26
  27   {
  28     SCOPED_TRACE("No occlusion");
  29     gfx::Rect occluded;
  30     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  31
  32     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
  33                                                  gfx::Rect(layer_size));
  34     EXPECT_EQ(1u, impl.quad_list().size());
  35   }
  36
  37   {
  38     SCOPED_TRACE("Full occlusion");
  39     gfx::Rect occluded(io_surface_layer_impl->visible_content_rect());
  40     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  41
  42     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
  43     EXPECT_EQ(impl.quad_list().size(), 0u);
  44   }
  45
  46   {
  47     SCOPED_TRACE("Partial occlusion");
  48     gfx::Rect occluded(200, 0, 800, 1000);
  49     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  50
  51     size_t partially_occluded_count = 0;
  52     LayerTestCommon::VerifyQuadsAreOccluded(
  53         impl.quad_list(), occluded, &partially_occluded_count);
  54     // The layer outputs one quad, which is partially occluded.
  55     EXPECT_EQ(1u, impl.quad_list().size());
  56     EXPECT_EQ(1u, partially_occluded_count);
  57   }
  58 }
  59
  60 }  // namespace
  61 }  // namespace cc