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->SetAnchorPoint(gfx::PointF());
  22   io_surface_layer_impl->SetBounds(layer_size);
  23   io_surface_layer_impl->SetContentBounds(layer_size);
  24   io_surface_layer_impl->SetDrawsContent(true);
  25
  26   impl.CalcDrawProps(viewport_size);
  27
  28   {
  29     SCOPED_TRACE("No occlusion");
  30     gfx::Rect occluded;
  31     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  32
  33     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
  34                                                  gfx::Rect(layer_size));
  35     EXPECT_EQ(1u, impl.quad_list().size());
  36   }
  37
  38   {
  39     SCOPED_TRACE("Full occlusion");
  40     gfx::Rect occluded(io_surface_layer_impl->visible_content_rect());
  41     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  42
  43     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
  44     EXPECT_EQ(impl.quad_list().size(), 0u);
  45   }
  46
  47   {
  48     SCOPED_TRACE("Partial occlusion");
  49     gfx::Rect occluded(200, 0, 800, 1000);
  50     impl.AppendQuadsWithOcclusion(io_surface_layer_impl, occluded);
  51
  52     size_t partially_occluded_count = 0;
  53     LayerTestCommon::VerifyQuadsCoverRectWithOcclusion(
  54         impl.quad_list(),
  55         gfx::Rect(layer_size),
  56         occluded,
  57         &partially_occluded_count);
  58     // The layer outputs one quad, which is partially occluded.
  59     EXPECT_EQ(1u, impl.quad_list().size());
  60     EXPECT_EQ(1u, partially_occluded_count);
  61   }
  62 }
  63
  64 }  // namespace
  65 }  // namespace cc