compute_pass_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_COMPUTE_PASS_MTL_H_
#define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_COMPUTE_PASS_MTL_H_
 
#include <Metal/Metal.h>
 
#include "flutter/fml/macros.h"
#include "impeller/renderer/compute_pass.h"
 
namespace impeller {
 
class ComputePassMTL final : public ComputePass {
 public:
  // |RenderPass|
  ~ComputePassMTL() override;
 
 private:
  friend class CommandBufferMTL;
 
  id<MTLCommandBuffer> buffer_ = nil;
  std::string label_;
  bool is_valid_ = false;
 
  ComputePassMTL(std::weak_ptr<const Context> context,
                 id<MTLCommandBuffer> buffer);
 
  // |ComputePass|
  bool IsValid() const override;
 
  // |ComputePass|
  void OnSetLabel(const std::string& label) override;
 
  // |ComputePass|
  bool OnEncodeCommands(const Context& context,
                        const ISize& grid_size,
                        const ISize& thread_group_size) const override;
 
  bool EncodeCommands(const std::shared_ptr<Allocator>& allocator,
                      id<MTLComputeCommandEncoder> pass,
                      const ISize& grid_size,
                      const ISize& thread_group_size) const;
 
  ComputePassMTL(const ComputePassMTL&) = delete;
 
  ComputePassMTL& operator=(const ComputePassMTL&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_COMPUTE_PASS_MTL_H_