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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 UI_OZONE_DEMO_SKIA_RENDERER_H_
#define UI_OZONE_DEMO_SKIA_RENDERER_H_
#include "base/containers/queue.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/synchronization/condition_variable.h"
#include "base/synchronization/lock.h"
#include "base/threading/simple_thread.h"
#include "third_party/skia/include/core/SkDeferredDisplayListRecorder.h"
#include "third_party/skia/include/core/SkSurface.h"
#include "third_party/skia/include/gpu/GrContext.h"
#include "ui/gfx/swap_result.h"
#include "ui/ozone/demo/renderer_base.h"
namespace gfx {
struct PresentationFeedback;
} // namespace gfx
namespace gl {
class GLContext;
class GLSurface;
} // namespace gl
namespace ui {
class SkiaRenderer : public RendererBase,
public base::DelegateSimpleThread::Delegate {
public:
SkiaRenderer(gfx::AcceleratedWidget widget,
const scoped_refptr<gl::GLSurface>& surface,
const gfx::Size& size);
~SkiaRenderer() override;
// Renderer:
bool Initialize() override;
protected:
virtual void RenderFrame();
virtual void PostRenderFrameTask(gfx::SwapResult result);
void Draw(SkCanvas* canvas, float fraction);
void StartDDLRenderThreadIfNecessary(SkSurface* sk_surface);
void StopDDLRenderThread();
std::unique_ptr<SkDeferredDisplayList> GetDDL();
scoped_refptr<gl::GLSurface> gl_surface_;
scoped_refptr<gl::GLContext> gl_context_;
sk_sp<GrContext> gr_context_;
const bool use_ddl_;
private:
// base::DelegateSimpleThread::Delegate:
void Run() override;
void OnPresentation(const gfx::PresentationFeedback& feedback);
sk_sp<SkSurface> sk_surface_;
float rotation_angle_ = 0.f;
std::unique_ptr<base::SimpleThread> ddl_render_thread_;
// The lock to protect |surface_charaterization_| and |ddls_|.
base::Lock lock_;
// The condition variable for signalling change of |ddls_|.
base::ConditionVariable condition_variable_;
SkSurfaceCharacterization surface_charaterization_;
base::queue<std::unique_ptr<SkDeferredDisplayList>> ddls_;
base::WeakPtrFactory<SkiaRenderer> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SkiaRenderer);
};
} // namespace ui
#endif // UI_OZONE_DEMO_SKIA_RENDERER_H_
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