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// Copyright 2014 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 "cc/layers/render_surface_impl.h"
#include "cc/test/layer_test_common.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
TEST(RenderSurfaceLayerImplTest, Occlusion) {
gfx::Size layer_size(1000, 1000);
gfx::Size viewport_size(1000, 1000);
LayerTestCommon::LayerImplTest impl;
LayerImpl* owning_layer_impl = impl.AddChildToRoot<LayerImpl>();
owning_layer_impl->SetBounds(layer_size);
owning_layer_impl->SetContentBounds(layer_size);
owning_layer_impl->SetDrawsContent(true);
owning_layer_impl->SetHasRenderSurface(true);
impl.CalcDrawProps(viewport_size);
RenderSurfaceImpl* render_surface_impl = owning_layer_impl->render_surface();
ASSERT_TRUE(render_surface_impl);
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded);
LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
gfx::Rect(layer_size));
EXPECT_EQ(1u, impl.quad_list().size());
}
{
SCOPED_TRACE("Full occlusion");
gfx::Rect occluded(owning_layer_impl->visible_content_rect());
impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded);
LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
EXPECT_EQ(impl.quad_list().size(), 0u);
}
{
SCOPED_TRACE("Partial occlusion");
gfx::Rect occluded(200, 0, 800, 1000);
impl.AppendSurfaceQuadsWithOcclusion(render_surface_impl, occluded);
size_t partially_occluded_count = 0;
LayerTestCommon::VerifyQuadsAreOccluded(
impl.quad_list(), occluded, &partially_occluded_count);
// The layer outputs one quad, which is partially occluded.
EXPECT_EQ(1u, impl.quad_list().size());
EXPECT_EQ(1u, partially_occluded_count);
}
}
} // namespace
} // namespace cc
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