// Copyright 2013 The Flutter 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 FLUTTER_SHELL_GPU_GPU_SURFACE_GL_IMPELLER_H_

#define FLUTTER_SHELL_GPU_GPU_SURFACE_GL_IMPELLER_H_

#include "flutter/common/graphics/gl_context_switch.h"

#include "flutter/flow/surface.h"

#include "flutter/fml/macros.h"

#include "flutter/fml/memory/weak_ptr.h"

#include "flutter/impeller/display_list/aiks_context.h"

#include "flutter/impeller/renderer/context.h"

#include "flutter/shell/gpu/gpu_surface_gl_delegate.h"

namespace flutter {

class GPUSurfaceGLImpeller final : public Surface {

public:

explicit GPUSurfaceGLImpeller(GPUSurfaceGLDelegate* delegate,

std::shared_ptr<impeller::Context> context,

bool render_to_surface);

// |Surface|

~GPUSurfaceGLImpeller() override;

// |Surface|

bool IsValid() override;

private:

GPUSurfaceGLDelegate* delegate_ = nullptr;

std::shared_ptr<impeller::Context> impeller_context_;

bool render_to_surface_ = true;

std::shared_ptr<impeller::AiksContext> aiks_context_;

bool is_valid_ = false;

fml::TaskRunnerAffineWeakPtrFactory<GPUSurfaceGLImpeller> weak_factory_;

// |Surface|

std::unique_ptr<SurfaceFrame> AcquireFrame(const DlISize& size) override;

// |Surface|

DlMatrix GetRootTransformation() const override;

// |Surface|

GrDirectContext* GetContext() override;

// |Surface|

std::unique_ptr<GLContextResult> MakeRenderContextCurrent() override;

// |Surface|

bool ClearRenderContext() override;

// |Surface|

bool AllowsDrawingWhenGpuDisabled() const override;

// |Surface|

bool EnableRasterCache() const override;

// |Surface|

std::shared_ptr<impeller::AiksContext> GetAiksContext() const override;

FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceGLImpeller);

};

} // namespace flutter

#endif // FLUTTER_SHELL_GPU_GPU_SURFACE_GL_IMPELLER_H_