blit_command_mtl.h

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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_IMPELLER_RENDERER_BACKEND_METAL_BLIT_COMMAND_MTL_H_
#define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_BLIT_COMMAND_MTL_H_
 
#include <Metal/Metal.h>
 
#include "impeller/base/backend_cast.h"
#include "impeller/renderer/blit_command.h"
 
namespace impeller {
 
/// Mixin for dispatching Metal commands.
struct BlitEncodeMTL : BackendCast<BlitEncodeMTL, BlitCommand> {
  virtual ~BlitEncodeMTL();
 
  virtual std::string GetLabel() const = 0;
 
  [[nodiscard]] virtual bool Encode(
      id<MTLBlitCommandEncoder> encoder) const = 0;
};
 
struct BlitCopyTextureToTextureCommandMTL
    : public BlitCopyTextureToTextureCommand,
      public BlitEncodeMTL {
  ~BlitCopyTextureToTextureCommandMTL() override;
 
  std::string GetLabel() const override;
 
  [[nodiscard]] bool Encode(id<MTLBlitCommandEncoder> encoder) const override;
};
 
struct BlitCopyTextureToBufferCommandMTL
    : public BlitCopyTextureToBufferCommand,
      public BlitEncodeMTL {
  ~BlitCopyTextureToBufferCommandMTL() override;
 
  std::string GetLabel() const override;
 
  [[nodiscard]] bool Encode(id<MTLBlitCommandEncoder> encoder) const override;
};
 
struct BlitGenerateMipmapCommandMTL : public BlitGenerateMipmapCommand,
                                      public BlitEncodeMTL {
  ~BlitGenerateMipmapCommandMTL() override;
 
  std::string GetLabel() const override;
 
  [[nodiscard]] bool Encode(id<MTLBlitCommandEncoder> encoder) const override;
};
 
struct BlitCopyBufferToTextureCommandMTL
    : public BlitCopyBufferToTextureCommand,
      public BlitEncodeMTL {
  ~BlitCopyBufferToTextureCommandMTL() override;
 
  std::string GetLabel() const override;
 
  [[nodiscard]] bool Encode(id<MTLBlitCommandEncoder> encoder) const override;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_BLIT_COMMAND_MTL_H_