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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/texture_layer_impl.h"
#include "cc/output/context_provider.h"
#include "cc/output/output_surface.h"
#include "cc/test/layer_test_common.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
void IgnoreCallback(uint32 sync_point,
bool lost,
BlockingTaskRunner* main_thread_task_runner) {
}
TEST(TextureLayerImplTest, Occlusion) {
gfx::Size layer_size(1000, 1000);
gfx::Size viewport_size(1000, 1000);
LayerTestCommon::LayerImplTest impl;
gpu::Mailbox mailbox;
impl.output_surface()->context_provider()->ContextGL()->GenMailboxCHROMIUM(
mailbox.name);
TextureMailbox texture_mailbox(mailbox, GL_TEXTURE_2D, 0);
TextureLayerImpl* texture_layer_impl =
impl.AddChildToRoot<TextureLayerImpl>();
texture_layer_impl->SetBounds(layer_size);
texture_layer_impl->SetContentBounds(layer_size);
texture_layer_impl->SetDrawsContent(true);
texture_layer_impl->SetTextureMailbox(
texture_mailbox,
SingleReleaseCallbackImpl::Create(base::Bind(&IgnoreCallback)));
impl.CalcDrawProps(viewport_size);
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendQuadsWithOcclusion(texture_layer_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(texture_layer_impl->visible_content_rect());
impl.AppendQuadsWithOcclusion(texture_layer_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.AppendQuadsWithOcclusion(texture_layer_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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