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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_DCOMP_PRESENTER_H_
#define UI_GL_DCOMP_PRESENTER_H_
#include <windows.h>
#include <d3d11.h>
#include <dcomp.h>
#include <wrl/client.h>
#include "base/containers/circular_deque.h"
#include "base/memory/scoped_refptr.h"
#include "base/time/time.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "ui/gfx/frame_data.h"
#include "ui/gfx/geometry/transform.h"
#include "ui/gfx/overlay_layer_id.h"
#include "ui/gl/child_window_win.h"
#include "ui/gl/gl_export.h"
#include "ui/gl/presenter.h"
#include "ui/gl/vsync_thread_win.h"
namespace base {
class SequencedTaskRunner;
} // namespace base
namespace gfx {
namespace mojom {
class DelegatedInkPointRenderer;
} // namespace mojom
class DelegatedInkMetadata;
} // namespace gfx
namespace gl {
class VSyncThreadWin;
class DCLayerTree;
// This class owns the DComp layer tree and its presentation. It does not own
// the root surface.
class GL_EXPORT DCompPresenter : public Presenter,
public VSyncThreadWin::VSyncObserver {
public:
struct Settings {
bool disable_nv12_dynamic_textures = false;
bool disable_vp_auto_hdr = false;
bool disable_vp_scaling = false;
bool disable_vp_super_resolution = false;
bool disable_dc_letterbox_video_optimization = false;
bool force_dcomp_triple_buffer_video_swap_chain = false;
bool no_downscaled_overlay_promotion = false;
};
explicit DCompPresenter(const Settings& settings);
DCompPresenter(const DCompPresenter&) = delete;
DCompPresenter& operator=(const DCompPresenter&) = delete;
gfx::VSyncProvider* GetVSyncProvider();
// Presenter implementation.
bool Resize(const gfx::Size& size,
float scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha) override;
bool SupportsViewporter() const override;
// This schedules overlay planes to be displayed on the next `Present` call.
// An overlay plane must be scheduled before every `Present` to remain in the
// layer tree. The primary plane should be included in `overlays`.
void ScheduleDCLayers(std::vector<DCLayerOverlayParams> overlays) override;
bool DestroyDCLayerTree() override;
void Present(SwapCompletionCallback completion_callback,
PresentationCallback presentation_callback,
gfx::FrameData data) override;
// VSyncObserver implementation.
void OnVSync(base::TimeTicks vsync_time, base::TimeDelta interval) override;
bool SupportsDelegatedInk() override;
void SetDelegatedInkTrailStartPoint(
std::unique_ptr<gfx::DelegatedInkMetadata> metadata) override;
void InitDelegatedInkPointRendererReceiver(
mojo::PendingReceiver<gfx::mojom::DelegatedInkPointRenderer>
pending_receiver) override;
HWND GetWindow() const override;
scoped_refptr<base::TaskRunner> GetWindowTaskRunnerForTesting();
Microsoft::WRL::ComPtr<IDXGISwapChain1> GetLayerSwapChainForTesting(
const gfx::OverlayLayerId& layer_id) const;
void GetSwapChainVisualInfoForTesting(const gfx::OverlayLayerId& layer_id,
gfx::Transform* out_transform,
gfx::Point* out_offset,
gfx::Rect* out_clip_rect) const;
DCLayerTree* GetLayerTreeForTesting() { return layer_tree_.get(); }
protected:
~DCompPresenter() override;
private:
struct PendingFrame {
PendingFrame(PresentationCallback callback);
PendingFrame(PendingFrame&& other);
~PendingFrame();
PendingFrame& operator=(PendingFrame&& other);
// Presentation callback enqueued in SwapBuffers().
PresentationCallback callback;
};
void EnqueuePendingFrame(PresentationCallback callback);
void CheckPendingFrames();
void StartOrStopVSyncThread();
void HandleVSyncOnMainThread(base::TimeTicks vsync_time,
base::TimeDelta interval);
ChildWindowWin child_window_;
Microsoft::WRL::ComPtr<ID3D11Device> d3d11_device_;
scoped_refptr<base::SequencedTaskRunner> task_runner_;
bool observing_vsync_ = false;
// Queue of pending presentation callbacks.
base::circular_deque<PendingFrame> pending_frames_;
std::vector<DCLayerOverlayParams> pending_overlays_;
base::TimeTicks last_vsync_time_;
base::TimeDelta last_vsync_interval_;
std::unique_ptr<DCLayerTree> layer_tree_;
// Set in the ctor. Indicates whether vsync is enabled for the process.
bool use_gpu_vsync_ = false;
base::WeakPtrFactory<DCompPresenter> weak_factory_{this};
};
} // namespace gl
#endif // UI_GL_DCOMP_PRESENTER_H_
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