impeller/compiler/source_options.h

// 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.

#pragma once

#include <cstdint>
#include <memory>
#include <string>
#include <vector>

#include "flutter/fml/unique_fd.h"
#include "impeller/compiler/include_dir.h"
#include "impeller/compiler/types.h"

namespace impeller {
namespace compiler {

struct SourceOptions {
  SourceType type = SourceType::kUnknown;
  TargetPlatform target_platform = TargetPlatform::kUnknown;
  SourceLanguage source_language = SourceLanguage::kUnknown;
  std::shared_ptr<fml::UniqueFD> working_directory;
  std::vector<IncludeDir> include_dirs;
  std::string file_name = "main.glsl";
  std::string entry_point_name = "main";
  uint32_t gles_language_version = 100;
  std::vector<std::string> defines;
  bool json_format = false;
  std::string metal_version;

  /// @brief Whether half-precision textures should be supported, requiring
  /// opengl semantics. Only used on metal targets.
  bool use_half_textures = false;

  /// @brief Whether the GLSL framebuffer fetch extension will be required.
  ///
  /// Only used on OpenGLES targets.
  bool require_framebuffer_fetch = false;

  SourceOptions();

  ~SourceOptions();

  explicit SourceOptions(const std::string& file_name,
                         SourceType source_type = SourceType::kUnknown);
};

}  // namespace compiler
}  // namespace impeller