pipeline_library_vk.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_VULKAN_PIPELINE_LIBRARY_VK_H_
#define FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_PIPELINE_LIBRARY_VK_H_
 
#include <atomic>
 
#include "flutter/fml/concurrent_message_loop.h"
#include "flutter/fml/unique_fd.h"
#include "impeller/base/backend_cast.h"
#include "impeller/base/thread.h"
#include "impeller/renderer/backend/vulkan/compute_pipeline_vk.h"
#include "impeller/renderer/backend/vulkan/pipeline_cache_vk.h"
#include "impeller/renderer/backend/vulkan/pipeline_vk.h"
#include "impeller/renderer/backend/vulkan/vk.h"
#include "impeller/renderer/pipeline.h"
#include "impeller/renderer/pipeline_library.h"
 
namespace impeller {
 
class ContextVK;
 
class PipelineLibraryVK final
    : public PipelineLibrary,
      public BackendCast<PipelineLibraryVK, PipelineLibrary> {
 public:
  // |PipelineLibrary|
  ~PipelineLibraryVK() override;
 
  void DidAcquireSurfaceFrame();
 
  const std::shared_ptr<PipelineCacheVK>& GetPSOCache() const;
 
  const std::shared_ptr<fml::ConcurrentTaskRunner>& GetWorkerTaskRunner() const;
 
 private:
  friend ContextVK;
 
  std::weak_ptr<DeviceHolderVK> device_holder_;
  std::shared_ptr<PipelineCacheVK> pso_cache_;
  std::shared_ptr<fml::ConcurrentTaskRunner> worker_task_runner_;
  Mutex pipelines_mutex_;
  PipelineMap pipelines_ IPLR_GUARDED_BY(pipelines_mutex_);
  ComputePipelineMap compute_pipelines_ IPLR_GUARDED_BY(pipelines_mutex_);
  std::atomic_size_t frames_acquired_ = 0u;
  PipelineKey pipeline_key_ IPLR_GUARDED_BY(pipelines_mutex_) = 1;
  bool is_valid_ = false;
  bool cache_dirty_ = false;
 
  PipelineLibraryVK(
      const std::shared_ptr<DeviceHolderVK>& device_holder,
      std::shared_ptr<const Capabilities> caps,
      fml::UniqueFD cache_directory,
      std::shared_ptr<fml::ConcurrentTaskRunner> worker_task_runner);
 
  // |PipelineLibrary|
  bool IsValid() const override;
 
  // |PipelineLibrary|
  PipelineFuture<PipelineDescriptor> GetPipeline(PipelineDescriptor descriptor,
                                                 bool async) override;
 
  // |PipelineLibrary|
  PipelineFuture<ComputePipelineDescriptor> GetPipeline(
      ComputePipelineDescriptor descriptor,
      bool async) override;
 
  // |PipelineLibrary|
  bool HasPipeline(const PipelineDescriptor& descriptor) override;
 
  // |PipelineLibrary|
  void RemovePipelinesWithEntryPoint(
      std::shared_ptr<const ShaderFunction> function) override;
 
  std::unique_ptr<ComputePipelineVK> CreateComputePipeline(
      const ComputePipelineDescriptor& desc,
      PipelineKey pipeline_key);
 
  void PersistPipelineCacheToDisk();
 
  PipelineLibraryVK(const PipelineLibraryVK&) = delete;
 
  PipelineLibraryVK& operator=(const PipelineLibraryVK&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_PIPELINE_LIBRARY_VK_H_