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// Copyright 2023 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_WRITER_EXTERNAL_TEXTURE_OPTIONS_H_
#define SRC_TINT_WRITER_EXTERNAL_TEXTURE_OPTIONS_H_
#include <unordered_map>
#include "src/tint/sem/external_texture.h"
namespace tint::writer {
/// Options used to specify mappings of binding points for external textures.
class ExternalTextureOptions {
public:
/// This struct identifies the binding groups and locations for new bindings to
/// use when transforming a texture_external instance.
using BindingPoints = sem::external_texture::BindingPoints;
/// BindingsMap is a map where the key is the binding location of a
/// texture_external and the value is a struct containing the desired
/// locations for new bindings expanded from the texture_external instance.
using BindingsMap = sem::external_texture::BindingsMap;
/// Constructor
ExternalTextureOptions();
/// Destructor
~ExternalTextureOptions();
/// Copy constructor
ExternalTextureOptions(const ExternalTextureOptions&);
/// Copy assignment
/// @returns this ExternalTextureOptions
ExternalTextureOptions& operator=(const ExternalTextureOptions&);
/// Move constructor
ExternalTextureOptions(ExternalTextureOptions&&);
/// A map of new binding points to use.
BindingsMap bindings_map;
/// Reflect the fields of this class so that it can be used by tint::ForeachField()
TINT_REFLECT(bindings_map);
};
} // namespace tint::writer
#endif // SRC_TINT_WRITER_EXTERNAL_TEXTURE_OPTIONS_H_