2020-07-31 11:31:32 +08:00

74 lines
3.6 KiB
C++

//===============================================================================
// Copyright (c) 2007-2018 Advanced Micro Devices, Inc. All rights reserved.
// Copyright (c) 2004-2006 ATI Technologies Inc.
//===============================================================================
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files(the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// File Name: Codec_ETC.h
// Description: interface for the CCodec_ETC class
//
//////////////////////////////////////////////////////////////////////////////
#ifndef _Codec_ETC_H_INCLUDED_
#define _Codec_ETC_H_INCLUDED_
#include "Common.h"
#include "Codec_Block_4x4.h"
#ifdef USE_ETCPACK
#include "etcpack.h"
#include "etcpack_lib.h"
#else
typedef unsigned char uint8;
void cmp_decompressBlockETC2c(unsigned int block_part1, unsigned int block_part2, uint8 *img);
void cmp_compressBlockETC2FastPerceptual(uint8 *img, uint8 *imgdec, unsigned int &compressed1, unsigned int &compressed2);
#endif
#define SWIZZLE_DWORD(i) ((((i >> 24) & BYTE_MASK)) | (((i >> 16) & BYTE_MASK) << 8) | (((i >> 8) & BYTE_MASK) << 16) | ((i & BYTE_MASK) << 24))
#define ATC_OFFSET_ALPHA 0
#define ATC_OFFSET_RGB 2
class CCodec_ETC : public CCodec_Block_4x4
{
public:
CCodec_ETC(CodecType codecType);
virtual ~CCodec_ETC();
protected:
CodecError CompressRGBBlock(CMP_BYTE rgbBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[2]);
CodecError CompressRGBABlock_ExplicitAlpha(CMP_BYTE rgbaBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[4]);
CodecError CompressRGBABlock_InterpolatedAlpha(CMP_BYTE rgbaBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[4]);
CodecError CompressExplicitAlphaBlock(CMP_BYTE alphaBlock[BLOCK_SIZE_4X4], CMP_DWORD compressedBlock[2]);
CodecError CompressInterpolatedAlphaBlock(CMP_BYTE alphaBlock[BLOCK_SIZE_4X4], CMP_DWORD compressedBlock[2]);
void DecompressRGBBlock(CMP_BYTE rgbBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[2]);
void DecompressRGBABlock_ExplicitAlpha(CMP_BYTE rgbaBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[4]);
void DecompressRGBABlock_InterpolatedAlpha(CMP_BYTE rgbaBlock[BLOCK_SIZE_4X4X4], CMP_DWORD compressedBlock[4]);
void DecompressExplicitAlphaBlock(CMP_BYTE alphaBlock[BLOCK_SIZE_4X4], CMP_DWORD compressedBlock[2]);
void DecompressInterpolatedAlphaBlock(CMP_BYTE alphaBlock[BLOCK_SIZE_4X4], CMP_DWORD compressedBlock[2]);
void EncodeAlphaBlock(CMP_DWORD compressedBlock[2], CMP_BYTE nEndpoints[2], CMP_BYTE nIndices[BLOCK_SIZE_4X4]);
void GetCompressedAlphaRamp(CMP_BYTE alpha[8], CMP_DWORD compressedBlock[2]);
};
#endif // !defined(_Codec_ETC_H_INCLUDED_)