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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 <set>
#include <vector>
#include "base/location.h"
#include "base/single_thread_task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "cc/layers/solid_color_layer.h"
#include "cc/layers/surface_layer.h"
#include "cc/test/fake_impl_proxy.h"
#include "cc/test/fake_layer_tree_host.h"
#include "cc/test/fake_layer_tree_host_client.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/layer_tree_test.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/trees/layer_tree_host.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
class SurfaceLayerTest : public testing::Test {
public:
SurfaceLayerTest()
: fake_client_(
FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)) {}
protected:
void SetUp() override {
layer_tree_host_ = FakeLayerTreeHost::Create(&fake_client_);
layer_tree_host_->SetViewportSize(gfx::Size(10, 10));
}
void TearDown() override {
if (layer_tree_host_) {
layer_tree_host_->SetRootLayer(nullptr);
layer_tree_host_ = nullptr;
}
}
scoped_ptr<FakeLayerTreeHost> layer_tree_host_;
FakeLayerTreeHostClient fake_client_;
TestSharedBitmapManager shared_bitmap_manager_;
};
void SatisfyCallback(SurfaceSequence* out, SurfaceSequence in) {
*out = in;
}
void RequireCallback(SurfaceId* out_id,
std::set<SurfaceSequence>* out,
SurfaceId in_id,
SurfaceSequence in) {
*out_id = in_id;
out->insert(in);
}
// Check that one surface can be referenced by multiple LayerTreeHosts, and
// each will create its own SurfaceSequence that's satisfied on destruction.
TEST_F(SurfaceLayerTest, MultipleFramesOneSurface) {
SurfaceSequence blank_change; // Receives sequence if commit doesn't happen.
SurfaceId required_id;
std::set<SurfaceSequence> required_seq;
scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
base::Bind(&SatisfyCallback, &blank_change),
base::Bind(&RequireCallback, &required_id, &required_seq)));
layer->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
layer_tree_host_->set_surface_id_namespace(1);
layer_tree_host_->SetRootLayer(layer);
scoped_ptr<FakeLayerTreeHost> layer_tree_host2 =
FakeLayerTreeHost::Create(&fake_client_);
scoped_refptr<SurfaceLayer> layer2(SurfaceLayer::Create(
base::Bind(&SatisfyCallback, &blank_change),
base::Bind(&RequireCallback, &required_id, &required_seq)));
layer2->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
layer_tree_host2->set_surface_id_namespace(2);
layer_tree_host2->SetRootLayer(layer2);
// Layers haven't been removed, so no sequence should be satisfied.
EXPECT_TRUE(blank_change.is_null());
SurfaceSequence expected1(1u, 1u);
SurfaceSequence expected2(2u, 1u);
layer_tree_host2->SetRootLayer(nullptr);
layer_tree_host2.reset();
// Layer was removed so sequence from second LayerTreeHost should be
// satisfied.
EXPECT_TRUE(blank_change == expected2);
// Set of sequences that need to be satisfied should include sequences from
// both trees.
EXPECT_TRUE(required_id == SurfaceId(1));
EXPECT_EQ(2u, required_seq.size());
EXPECT_TRUE(required_seq.count(expected1));
EXPECT_TRUE(required_seq.count(expected2));
layer_tree_host_->SetRootLayer(nullptr);
layer_tree_host_.reset();
// Layer was removed so sequence from first LayerTreeHost should be
// satisfied.
EXPECT_TRUE(blank_change == expected1);
// No more SurfaceSequences should have been generated that need to have be
// satisfied.
EXPECT_EQ(2u, required_seq.size());
}
static void CalcDrawProps(FakeLayerTreeHost* host, float device_scale_factor) {
RenderSurfaceLayerList render_surface_layer_list;
LayerTreeHostCommon::CalcDrawPropsMainInputsForTesting inputs(
host->root_layer(), gfx::Size(500, 500), &render_surface_layer_list);
inputs.device_scale_factor = device_scale_factor;
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
}
// Check that setting content scale on the surface works.
TEST_F(SurfaceLayerTest, ScaleSurface) {
SurfaceSequence blank_change;
SurfaceId required_id;
std::set<SurfaceSequence> required_seq;
scoped_refptr<SurfaceLayer> layer(SurfaceLayer::Create(
base::Bind(&SatisfyCallback, &blank_change),
base::Bind(&RequireCallback, &required_id, &required_seq)));
gfx::Size surface_size(10, 15);
layer->SetSurfaceId(SurfaceId(1), 2.f, surface_size);
layer->SetBounds(gfx::Size(25, 45));
layer_tree_host_->SetRootLayer(layer);
CalcDrawProps(layer_tree_host_.get(), 5.f);
EXPECT_EQ(2.f, layer->contents_scale_x());
EXPECT_EQ(2.f, layer->contents_scale_y());
EXPECT_EQ(surface_size.ToString(), layer->content_bounds().ToString());
layer_tree_host_->SetRootLayer(nullptr);
layer_tree_host_.reset();
}
// Check that SurfaceSequence is sent through swap promise.
class SurfaceLayerSwapPromise : public LayerTreeTest {
public:
SurfaceLayerSwapPromise()
: commit_count_(0), sequence_was_satisfied_(false) {}
void BeginTest() override {
layer_tree_host()->set_surface_id_namespace(1);
layer_ = SurfaceLayer::Create(
base::Bind(&SatisfyCallback, &satisfied_sequence_),
base::Bind(&RequireCallback, &required_id_, &required_set_));
layer_->SetSurfaceId(SurfaceId(1), 1.f, gfx::Size(1, 1));
// Layer hasn't been added to tree so no SurfaceSequence generated yet.
EXPECT_EQ(0u, required_set_.size());
layer_tree_host()->SetRootLayer(layer_);
// Should have SurfaceSequence from first tree.
SurfaceSequence expected(1u, 1u);
EXPECT_TRUE(required_id_ == SurfaceId(1));
EXPECT_EQ(1u, required_set_.size());
EXPECT_TRUE(required_set_.count(expected));
gfx::Size bounds(100, 100);
layer_tree_host()->SetViewportSize(bounds);
PostSetNeedsCommitToMainThread();
}
void DidCommitAndDrawFrame() override {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(&SurfaceLayerSwapPromise::ChangeTree,
base::Unretained(this)));
}
void ChangeTree() {
++commit_count_;
switch (commit_count_) {
case 1:
// Remove SurfaceLayer from tree to cause SwapPromise to be created.
blank_layer_ = SolidColorLayer::Create();
blank_layer_->SetIsDrawable(true);
blank_layer_->SetBounds(gfx::Size(10, 10));
layer_tree_host()->SetRootLayer(blank_layer_);
break;
case 2:
break;
default:
NOTREACHED();
break;
}
}
void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
EXPECT_TRUE(result);
std::vector<uint32_t>& satisfied =
output_surface()->last_sent_frame().metadata.satisfies_sequences;
EXPECT_LE(satisfied.size(), 1u);
if (satisfied.size() == 1) {
// Eventually the one SurfaceSequence should be satisfied, but only
// after the layer was removed from the tree, and only once.
EXPECT_EQ(1u, satisfied[0]);
EXPECT_LE(1, commit_count_);
EXPECT_FALSE(sequence_was_satisfied_);
sequence_was_satisfied_ = true;
EndTest();
}
}
void AfterTest() override {
EXPECT_TRUE(required_id_ == SurfaceId(1));
EXPECT_EQ(1u, required_set_.size());
// Sequence should have been satisfied through Swap, not with the
// callback.
EXPECT_TRUE(satisfied_sequence_.is_null());
}
private:
int commit_count_;
bool sequence_was_satisfied_;
scoped_refptr<SurfaceLayer> layer_;
scoped_refptr<Layer> blank_layer_;
SurfaceSequence satisfied_sequence_;
SurfaceId required_id_;
std::set<SurfaceSequence> required_set_;
};
// TODO(jbauman): Reenable on single thread once http://crbug.com/421923 is
// fixed.
MULTI_THREAD_TEST_F(SurfaceLayerSwapPromise);
} // namespace
} // namespace cc
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