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// 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_METAL_IMPELLER_H_
#define FLUTTER_SHELL_GPU_GPU_SURFACE_METAL_IMPELLER_H_
#include <Metal/Metal.h>
#include "flutter/flow/surface.h"
#include "flutter/fml/macros.h"
#include "flutter/fml/platform/darwin/scoped_nsobject.h"
#include "flutter/impeller/aiks/aiks_context.h"
#include "flutter/impeller/renderer/backend/metal/context_mtl.h"
#include "flutter/impeller/renderer/renderer.h"
#include "flutter/shell/gpu/gpu_surface_metal_delegate.h"
#include "third_party/skia/include/gpu/mtl/GrMtlTypes.h"
namespace flutter {
class IMPELLER_CA_METAL_LAYER_AVAILABLE GPUSurfaceMetalImpeller
: public Surface {
public:
GPUSurfaceMetalImpeller(GPUSurfaceMetalDelegate* delegate,
const std::shared_ptr<impeller::Context>& context,
bool render_to_surface = true);
// |Surface|
~GPUSurfaceMetalImpeller();
// |Surface|
bool IsValid() override;
virtual Surface::SurfaceData GetSurfaceData() const override;
private:
const GPUSurfaceMetalDelegate* delegate_;
const MTLRenderTargetType render_target_type_;
std::shared_ptr<impeller::Renderer> impeller_renderer_;
std::shared_ptr<impeller::AiksContext> aiks_context_;
fml::scoped_nsprotocol<id<MTLTexture>> last_texture_;
// TODO(38466): Refactor GPU surface APIs take into account the fact that an
// external view embedder may want to render to the root surface. This is a
// hack to make avoid allocating resources for the root surface when an
// external view embedder is present.
bool render_to_surface_ = true;
bool disable_partial_repaint_ = false;
// Accumulated damage for each framebuffer; Key is address of underlying
// MTLTexture for each drawable
std::map<uintptr_t, SkIRect> damage_;
// |Surface|
std::unique_ptr<SurfaceFrame> AcquireFrame(
const SkISize& frame_size) override;
std::unique_ptr<SurfaceFrame> AcquireFrameFromCAMetalLayer(
const SkISize& frame_size);
std::unique_ptr<SurfaceFrame> AcquireFrameFromMTLTexture(
const SkISize& frame_size);
// |Surface|
SkMatrix GetRootTransformation() const override;
// |Surface|
GrDirectContext* GetContext() override;
// |Surface|
std::unique_ptr<GLContextResult> MakeRenderContextCurrent() 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(GPUSurfaceMetalImpeller);
};
} // namespace flutter
#endif // FLUTTER_SHELL_GPU_GPU_SURFACE_METAL_IMPELLER_H_