switches.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_PLAYGROUND_SWITCHES_H_
#define FLUTTER_IMPELLER_PLAYGROUND_SWITCHES_H_
 
#include <chrono>
#include <optional>
 
#include "flutter/fml/command_line.h"
#include "impeller/base/flags.h"
 
namespace impeller {
 
struct PlaygroundSwitches {
  bool enable_playground = false;
  // If specified, the playgrounds will render for at least the duration
  // specified in the timeout. If the timeout is zero, exactly one frame will be
  // rendered in the playground.
  std::optional<std::chrono::milliseconds> timeout;
  bool enable_vulkan_validation = false;
  //----------------------------------------------------------------------------
  /// Seek a SwiftShader library in known locations and use it when running
  /// Vulkan. It is a fatal error to provide this option and not have the test
  /// find a SwiftShader implementation.
  ///
  bool use_swiftshader = false;
  /// Attempt to use Angle on the system instead of the available OpenGL ES
  /// implementation. This is on-by-default on macOS due to the broken-ness in
  /// the deprecated OpenGL implementation. On other platforms, it this opt-in
  /// via the flag with the system OpenGL ES implementation used by fault.
  ///
  bool use_angle = false;
 
  /// Whether the Playground instance can share contexts among multiple
  /// instantiations. This value is initialized by the Playground before
  /// it instantiates the |PlaygroundImpl| object. Implementations are free
  /// to share or not share contexts if this switch is true, but must create
  /// a new context for each Impl object created if the value is false.
  bool can_share_context = true;
 
  bool enable_wide_gamut = false;
 
  Flags flags;
 
  PlaygroundSwitches();
 
  explicit PlaygroundSwitches(const fml::CommandLine& args);
 
  bool operator==(const PlaygroundSwitches&) const = default;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_PLAYGROUND_SWITCHES_H_