multi_arch_shader_archive.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_SHADER_ARCHIVE_MULTI_ARCH_SHADER_ARCHIVE_H_
#define FLUTTER_IMPELLER_SHADER_ARCHIVE_MULTI_ARCH_SHADER_ARCHIVE_H_
 
#include <map>
#include <memory>
 
#include "flutter/fml/macros.h"
#include "flutter/fml/mapping.h"
#include "impeller/shader_archive/shader_archive.h"
#include "impeller/shader_archive/shader_archive_types.h"
 
namespace impeller {
 
class MultiArchShaderArchive {
 public:
  static std::shared_ptr<ShaderArchive> CreateArchiveFromMapping(
      const std::shared_ptr<const fml::Mapping>& mapping,
      ArchiveRenderingBackend backend);
 
  explicit MultiArchShaderArchive(
      const std::shared_ptr<const fml::Mapping>& mapping);
 
  ~MultiArchShaderArchive();
 
  std::shared_ptr<const fml::Mapping> GetArchive(
      ArchiveRenderingBackend backend) const;
 
  std::shared_ptr<ShaderArchive> GetShaderArchive(
      ArchiveRenderingBackend backend) const;
 
  bool IsValid() const;
 
 private:
  std::map<ArchiveRenderingBackend, std::shared_ptr<const fml::Mapping>>
      backend_mappings_;
  bool is_valid_ = false;
 
  MultiArchShaderArchive(const MultiArchShaderArchive&) = delete;
 
  MultiArchShaderArchive& operator=(const MultiArchShaderArchive&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_SHADER_ARCHIVE_MULTI_ARCH_SHADER_ARCHIVE_H_