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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_H_
#define FLUTTER_SHELL_GPU_GPU_SURFACE_METAL_H_
#include "flutter/common/graphics/msaa_sample_count.h"
#include "flutter/flow/surface.h"
#include "flutter/fml/macros.h"
#include "flutter/shell/gpu/gpu_surface_metal_delegate.h"
#include "third_party/skia/include/gpu/GrDirectContext.h"
namespace flutter {
class SK_API_AVAILABLE_CA_METAL_LAYER GPUSurfaceMetalSkia : public Surface {
public:
GPUSurfaceMetalSkia(GPUSurfaceMetalDelegate* delegate,
sk_sp<GrDirectContext> context,
MsaaSampleCount msaa_samples,
bool render_to_surface = true);
// |Surface|
~GPUSurfaceMetalSkia();
// |Surface|
bool IsValid() override;
private:
const GPUSurfaceMetalDelegate* delegate_;
const MTLRenderTargetType render_target_type_;
sk_sp<GrDirectContext> context_;
GrDirectContext* precompiled_sksl_context_ = nullptr;
MsaaSampleCount msaa_samples_ = MsaaSampleCount::kNone;
// 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& size) override;
// |Surface|
SkMatrix GetRootTransformation() const override;
// |Surface|
GrDirectContext* GetContext() override;
// |Surface|
std::unique_ptr<GLContextResult> MakeRenderContextCurrent() override;
// |Surface|
bool AllowsDrawingWhenGpuDisabled() const override;
std::unique_ptr<SurfaceFrame> AcquireFrameFromCAMetalLayer(
const SkISize& frame_info);
std::unique_ptr<SurfaceFrame> AcquireFrameFromMTLTexture(
const SkISize& frame_info);
void PrecompileKnownSkSLsIfNecessary();
FML_DISALLOW_COPY_AND_ASSIGN(GPUSurfaceMetalSkia);
};
} // namespace flutter
#endif // FLUTTER_SHELL_GPU_GPU_SURFACE_METAL_H_