// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// 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 sw_Stream_hpp
#define sw_Stream_hpp

#include "System/Types.hpp"

namespace sw {

enum StreamType ENUM_UNDERLYING_TYPE_UNSIGNED_INT
{
	STREAMTYPE_COLOR,  // 4 normalized unsigned bytes, ZYXW order
	STREAMTYPE_FLOAT,  // Normalization ignored
	STREAMTYPE_BYTE,
	STREAMTYPE_SBYTE,
	STREAMTYPE_SHORT,
	STREAMTYPE_USHORT,
	STREAMTYPE_INT,
	STREAMTYPE_UINT,
	STREAMTYPE_HALF,  // Normalization ignored
	STREAMTYPE_2_10_10_10_INT,
	STREAMTYPE_2_10_10_10_UINT,

	STREAMTYPE_LAST = STREAMTYPE_2_10_10_10_UINT
};

struct Stream
{
	const void *buffer = nullptr;
	unsigned int robustnessSize = 0;
	unsigned int vertexStride = 0;
	unsigned int instanceStride = 0;
	StreamType type = STREAMTYPE_FLOAT;
	unsigned char count = 0;
	bool normalized = false;
	unsigned int offset = 0;
	unsigned int binding = 0;
};

}  // namespace sw

#endif  // sw_Stream_hpp