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// Copyright 2022 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 <vector>
#include "base/logging.h"
#include "base/run_loop.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/display/types/display_configuration_params.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/gpu_fence.h"
#include "ui/gfx/gpu_fence_handle.h"
#include "ui/gfx/linux/gbm_buffer.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/presentation_feedback.h"
#include "ui/gfx/swap_result.h"
#include "ui/ozone/platform/drm/common/display_types.h"
#include "ui/ozone/platform/drm/gpu/drm_framebuffer.h"
#include "ui/ozone/platform/drm/gpu/drm_overlay_plane.h"
#include "ui/ozone/platform/drm/gpu/drm_thread_proxy.h"
#include "ui/ozone/platform/drm/gpu/drm_window_proxy.h"
#include "ui/ozone/platform/drm/test/integration_test_helpers.h"
class VKMSTest : public testing::Test {
public:
VKMSTest() = default;
void SetUp() override {
base::RunLoop run_loop;
drm_thread_proxy_ = std::make_unique<ui::DrmThreadProxy>();
drm_thread_proxy_->StartDrmThread(run_loop.QuitClosure());
drm_thread_proxy_->WaitUntilDrmThreadStarted();
drm_thread_proxy_->AddDrmDeviceReceiver(
drm_device_.BindNewPipeAndPassReceiver());
run_loop.Run();
auto [path, file] = ui::test::FindDrmDriverOrDie("vkms");
drm_device_->AddGraphicsDevice(path, std::move(file));
}
protected:
ui::MovableDisplaySnapshots RefreshDisplays() {
ui::MovableDisplaySnapshots output;
base::RunLoop run_loop;
auto callback =
base::BindLambdaForTesting([&](ui::MovableDisplaySnapshots snapshots) {
output = std::move(snapshots);
run_loop.Quit();
});
drm_device_->RefreshNativeDisplays(callback);
run_loop.Run();
return output;
}
ui::MovableDisplaySnapshots SetupDisplaysHorizontally() {
auto displays = RefreshDisplays();
std::vector<display::DisplayConfigurationParams> params;
uint32_t x = 0;
for (auto& display : displays) {
const auto* mode = display->modes()[0].get();
params.emplace_back(display->display_id(), gfx::Point(x, 0), mode);
x += mode->size().width();
}
base::RunLoop run_loop;
auto callback = base::BindLambdaForTesting([&run_loop](bool success) {
EXPECT_TRUE(success) << "Unable to set up displays.";
run_loop.Quit();
});
drm_device_->ConfigureNativeDisplays(
params, display::kTestModeset | display::kCommitModeset, callback);
run_loop.Run();
return RefreshDisplays();
}
void FlipExpectingRecreateBuffers(
const std::unique_ptr<ui::DrmWindowProxy>& window_proxy) {
base::RunLoop run_loop;
auto submission_callback =
base::BindOnce([](gfx::SwapResult result, gfx::GpuFenceHandle handle) {
EXPECT_EQ(result, gfx::SwapResult::SWAP_NAK_RECREATE_BUFFERS);
});
auto presentation_callback = base::BindLambdaForTesting(
[&run_loop](const gfx::PresentationFeedback& feedback) {
EXPECT_TRUE(feedback.failed());
run_loop.Quit();
});
auto planes = std::vector<ui::DrmOverlayPlane>();
window_proxy->SchedulePageFlip(std::move(planes),
std::move(submission_callback),
std::move(presentation_callback));
run_loop.Run();
}
// This should be first, so that it is destructed last. The DRM thread
// interacts with current IO thread when it is destructed.
base::test::TaskEnvironment task_environment_{
base::test::TaskEnvironment::MainThreadType::IO};
std::unique_ptr<ui::DrmThreadProxy> drm_thread_proxy_ = nullptr;
mojo::Remote<ui::ozone::mojom::DrmDevice> drm_device_;
};
TEST_F(VKMSTest, DisplaysAreAvailable) {
auto snapshots = RefreshDisplays();
EXPECT_GT(snapshots.size(), 0ul);
}
TEST_F(VKMSTest, SinglePlanePageFlip) {
auto displays = SetupDisplaysHorizontally();
constexpr gfx::AcceleratedWidget kWidget = 1;
const auto kWindowRect =
gfx::Rect(displays[0]->origin(), displays[0]->current_mode()->size());
drm_device_->CreateWindow(kWidget, kWindowRect);
auto window_proxy = drm_thread_proxy_->CreateDrmWindowProxy(kWidget);
FlipExpectingRecreateBuffers(window_proxy);
// Note that as of 2022/04, the only vkms-supported buffers are RGB. Note that
// the BufferFormat order is flipped from DRM. See here for our conversions:
// ui/gfx/linux/drm_util_linux.cc
std::unique_ptr<ui::GbmBuffer> buffer;
scoped_refptr<ui::DrmFramebuffer> framebuffer;
drm_thread_proxy_->CreateBuffer(
kWidget, kWindowRect.size(), kWindowRect.size(),
gfx::BufferFormat::BGRX_8888, gfx::BufferUsage::SCANOUT_CPU_READ_WRITE,
/*flags=*/0, &buffer, &framebuffer);
auto planes = std::vector<ui::DrmOverlayPlane>();
planes.emplace_back(framebuffer,
std::make_unique<gfx::GpuFence>(gfx::GpuFenceHandle()));
base::RunLoop run_loop;
auto submission_callback =
base::BindOnce([](gfx::SwapResult result, gfx::GpuFenceHandle handle) {
EXPECT_EQ(result, gfx::SwapResult::SWAP_ACK);
});
auto presentation_callback = base::BindLambdaForTesting(
[&](const gfx::PresentationFeedback& feedback) {
EXPECT_FALSE(feedback.failed());
run_loop.Quit();
});
window_proxy->SchedulePageFlip(std::move(planes),
std::move(submission_callback),
std::move(presentation_callback));
run_loop.Run();
drm_device_->DestroyWindow(kWidget);
}
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