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// Copyright 2018 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.
#ifndef COMPONENTS_VIZ_SERVICE_DISPLAY_EMBEDDER_SKIA_OUTPUT_SURFACE_IMPL_H_
#define COMPONENTS_VIZ_SERVICE_DISPLAY_EMBEDDER_SKIA_OUTPUT_SURFACE_IMPL_H_
#include "base/macros.h"
#include "base/optional.h"
#include "base/threading/thread_checker.h"
#include "components/viz/service/display/skia_output_surface.h"
#include "components/viz/service/viz_service_export.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "gpu/ipc/common/surface_handle.h"
#include "gpu/ipc/in_process_command_buffer.h"
#include "third_party/skia/include/core/SkDeferredDisplayListRecorder.h"
#include "third_party/skia/include/core/SkSurfaceCharacterization.h"
namespace base {
class WaitableEvent;
}
namespace viz {
class GpuServiceImpl;
class SkiaOutputSurfaceImplOnGpu;
class SyntheticBeginFrameSource;
class YUVResourceMetadata;
// The SkiaOutputSurface implementation. It is the output surface for
// SkiaRenderer. It lives on the compositor thread, but it will post tasks
// to the GPU thread for initializing. Currently, SkiaOutputSurfaceImpl
// create a SkiaOutputSurfaceImplOnGpu on the GPU thread. It will be used
// for creating a SkSurface from the default framebuffer and providing the
// SkSurfaceCharacterization for the SkSurface. And then SkiaOutputSurfaceImpl
// will create SkDeferredDisplayListRecorder and SkCanvas for SkiaRenderer to
// render into. In SwapBuffers, it detaches a SkDeferredDisplayList from the
// recorder and plays it back on the framebuffer SkSurface on the GPU thread
// through SkiaOutputSurfaceImpleOnGpu.
class VIZ_SERVICE_EXPORT SkiaOutputSurfaceImpl : public SkiaOutputSurface {
public:
SkiaOutputSurfaceImpl(
GpuServiceImpl* gpu_service,
gpu::SurfaceHandle surface_handle,
SyntheticBeginFrameSource* synthetic_begin_frame_source);
~SkiaOutputSurfaceImpl() override;
// OutputSurface implementation:
void BindToClient(OutputSurfaceClient* client) override;
void EnsureBackbuffer() override;
void DiscardBackbuffer() override;
void BindFramebuffer() override;
void SetDrawRectangle(const gfx::Rect& draw_rectangle) override;
void Reshape(const gfx::Size& size,
float device_scale_factor,
const gfx::ColorSpace& color_space,
bool has_alpha,
bool use_stencil) override;
void SwapBuffers(OutputSurfaceFrame frame) override;
uint32_t GetFramebufferCopyTextureFormat() override;
OverlayCandidateValidator* GetOverlayCandidateValidator() const override;
bool IsDisplayedAsOverlayPlane() const override;
unsigned GetOverlayTextureId() const override;
gfx::BufferFormat GetOverlayBufferFormat() const override;
bool HasExternalStencilTest() const override;
void ApplyExternalStencil() override;
#if BUILDFLAG(ENABLE_VULKAN)
gpu::VulkanSurface* GetVulkanSurface() override;
#endif
unsigned UpdateGpuFence() override;
void SetNeedsSwapSizeNotifications(
bool needs_swap_size_notifications) override;
// SkiaOutputSurface implementation:
SkCanvas* BeginPaintCurrentFrame() override;
gpu::SyncToken FinishPaintCurrentFrame() override;
sk_sp<SkImage> MakePromiseSkImage(ResourceMetadata metadata) override;
sk_sp<SkImage> MakePromiseSkImageFromYUV(
std::vector<ResourceMetadata> metadatas,
SkYUVColorSpace yuv_color_space) override;
void SkiaSwapBuffers(OutputSurfaceFrame frame) override;
SkCanvas* BeginPaintRenderPass(const RenderPassId& id,
const gfx::Size& surface_size,
ResourceFormat format,
bool mipmap) override;
gpu::SyncToken FinishPaintRenderPass() override;
sk_sp<SkImage> MakePromiseSkImageFromRenderPass(const RenderPassId& id,
const gfx::Size& size,
ResourceFormat format,
bool mipmap) override;
void RemoveRenderPassResource(std::vector<RenderPassId> ids) override;
void CopyOutput(RenderPassId id,
const gfx::Rect& copy_rect,
std::unique_ptr<CopyOutputRequest> request) override;
private:
template <class T>
class PromiseTextureHelper;
void InitializeOnGpuThread(base::WaitableEvent* event);
void RecreateRecorder();
void DidSwapBuffersComplete(gpu::SwapBuffersCompleteParams params,
const gfx::Size& pixel_size);
void BufferPresented(const gfx::PresentationFeedback& feedback);
uint64_t sync_fence_release_ = 0;
GpuServiceImpl* const gpu_service_;
const gpu::SurfaceHandle surface_handle_;
SyntheticBeginFrameSource* const synthetic_begin_frame_source_;
OutputSurfaceClient* client_ = nullptr;
SkSurfaceCharacterization characterization_;
base::Optional<SkDeferredDisplayListRecorder> recorder_;
// The current render pass id set by BeginPaintRenderPass.
RenderPassId current_render_pass_id_ = 0;
// The SkDDL recorder created by BeginPaintRenderPass, and
// FinishPaintRenderPass will turn it into a SkDDL and play the SkDDL back on
// the GPU thread.
base::Optional<SkDeferredDisplayListRecorder> offscreen_surface_recorder_;
// Sync tokens for resources which are used for the current frame.
std::vector<gpu::SyncToken> resource_sync_tokens_;
// YUV resource metadatas for the current frame or the current render pass.
// They should be preprocessed for playing recorded frame into a surface.
// TODO(penghuang): Remove it when Skia supports drawing YUV textures
// directly.
std::vector<YUVResourceMetadata*> yuv_resource_metadatas_;
// The task runner for running task on the client (compositor) thread.
scoped_refptr<base::SingleThreadTaskRunner> client_thread_task_runner_;
// |impl_on_gpu| is created and destroyed on the GPU thread.
std::unique_ptr<SkiaOutputSurfaceImplOnGpu> impl_on_gpu_;
// Whether to send OutputSurfaceClient::DidSwapWithSize notifications.
bool needs_swap_size_notifications_ = false;
THREAD_CHECKER(thread_checker_);
base::WeakPtr<SkiaOutputSurfaceImpl> weak_ptr_;
base::WeakPtrFactory<SkiaOutputSurfaceImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SkiaOutputSurfaceImpl);
};
} // namespace viz
#endif // COMPONENTS_VIZ_SERVICE_DISPLAY_EMBEDDER_SKIA_OUTPUT_SURFACE_IMPL_H_
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