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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_IPC_SERVICE_DCOMP_TEXTURE_WIN_H_
#define GPU_IPC_SERVICE_DCOMP_TEXTURE_WIN_H_
#include <stdint.h>
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/power_monitor/power_observer.h"
#include "base/timer/timer.h"
#include "base/unguessable_token.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "gpu/ipc/common/gpu_channel.mojom.h"
#include "gpu/ipc/service/command_buffer_stub.h"
#include "mojo/public/cpp/bindings/associated_receiver.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "ui/gl/dcomp_surface_proxy.h"
namespace gfx {
class Size;
}
namespace gpu {
class GpuChannel;
struct Mailbox;
class DCOMPTexture : public gl::DCOMPSurfaceProxy,
public SharedContextState::ContextLostObserver,
public base::PowerSuspendObserver,
public mojom::DCOMPTexture {
public:
// A nullptr is returned if it fails to create one.
static scoped_refptr<DCOMPTexture> Create(
GpuChannel* channel,
int route_id,
mojo::PendingAssociatedReceiver<mojom::DCOMPTexture> receiver);
// Cleans up related data and nulls |channel_|. Called when the channel
// releases its ref on this class.
void ReleaseChannel();
// gl::DCOMPSurfaceProxy implementation.
const gfx::Size& GetSize() const override;
HANDLE GetSurfaceHandle() override;
void SetParentWindow(HWND parent) override;
void SetRect(const gfx::Rect& window_relative_rect) override;
private:
DCOMPTexture(GpuChannel* channel,
int32_t route_id,
mojo::PendingAssociatedReceiver<mojom::DCOMPTexture> receiver,
scoped_refptr<SharedContextState> context_state);
~DCOMPTexture() override;
// SharedContextState::ContextLostObserver implementation.
void OnContextLost() override;
// base::PowerSuspendObserver implementation.
void OnResume() override;
// mojom::DCOMPTexture implementation.
void StartListening(
mojo::PendingAssociatedRemote<mojom::DCOMPTextureClient> client) override;
void SetTextureSize(const gfx::Size& size) override;
void SetDCOMPSurfaceHandle(const base::UnguessableToken& token,
SetDCOMPSurfaceHandleCallback callback) override;
gpu::Mailbox CreateSharedImage();
gfx::Rect GetParentWindowRect();
void OnUpdateParentWindowRect();
void SendOutputRect();
void ResetSizeIfNeeded();
// Size of {1, 1} to signify the Media Foundation rendering pipeline is not
// ready to setup DCOMP video yet, or should not display due to hardware
// context reset.
gfx::Size size_ = gfx::Size(1, 1);
base::win::ScopedHandle surface_handle_;
HWND last_parent_ = nullptr;
bool shared_image_mailbox_created_ = false;
raw_ptr<GpuChannel> channel_ = nullptr;
const int32_t route_id_;
scoped_refptr<SharedContextState> context_state_;
SequenceId sequence_;
gfx::Rect last_output_rect_;
gfx::Rect parent_window_rect_;
gfx::Rect window_relative_rect_;
base::RepeatingTimer window_pos_timer_;
// Last time when a power resume or GPU change happened. This is used to
// decide whether there is a risk that hardware context reset happened and we
// should release dcomp surface.
base::TimeTicks last_power_change_time_;
mojo::AssociatedReceiver<mojom::DCOMPTexture> receiver_;
mojo::AssociatedRemote<mojom::DCOMPTextureClient> client_;
base::WeakPtrFactory<DCOMPTexture> weak_factory_{this};
};
} // namespace gpu
#endif // GPU_IPC_SERVICE_DCOMP_TEXTURE_WIN_H_
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