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154 lines
9.1 KiB
C
154 lines
9.1 KiB
C
//=====================================================================
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// Copyright (c) 2019 Advanced Micro Devices, Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files(the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions :
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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/// \file CMP_Core.h
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//
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//=====================================================================
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#ifndef CMP_CORE_H
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#define CMP_CORE_H
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#include <stdint.h>
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#ifdef _WIN32
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#define CMP_CDECL __cdecl
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#else
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#define CMP_CDECL
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#endif
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//====================================================================================
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// API Definitions for Core API
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//------------------------------------------------------------------------------------
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// All API return 0 on success else error codes > 0
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// See Common_Def.h CGU_CORE_ values for the error codes
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//=====================================================================================
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//======================================================================================================
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// Block level setting option: Create and Destroy Reference Pointers
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//======================================================================================================
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// Context create and destroy to use for BCn codec settings, where n is the set [1,2,3,4,5,6,7]
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// All codecs will use default max quality settings, users can create multiple contexts to
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// set quality levels, masks , channel mapping, etc...
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int CMP_CDECL CreateOptionsBC1(void **optionsBC1);
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int CMP_CDECL CreateOptionsBC2(void **optionsBC2);
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int CMP_CDECL CreateOptionsBC3(void **optionsBC3);
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int CMP_CDECL CreateOptionsBC4(void **optionsBC4);
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int CMP_CDECL CreateOptionsBC5(void **optionsBC5);
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int CMP_CDECL CreateOptionsBC6(void **optionsBC6);
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int CMP_CDECL CreateOptionsBC7(void **optionsBC7);
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int CMP_CDECL DestroyOptionsBC1(void *optionsBC1);
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int CMP_CDECL DestroyOptionsBC2(void *optionsBC2);
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int CMP_CDECL DestroyOptionsBC3(void *optionsBC3);
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int CMP_CDECL DestroyOptionsBC4(void *optionsBC4);
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int CMP_CDECL DestroyOptionsBC5(void *optionsBC5);
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int CMP_CDECL DestroyOptionsBC6(void *optionsBC6);
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int CMP_CDECL DestroyOptionsBC7(void *optionsBC7);
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//======================================================================================================
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// Block level settings using the options Reference Pointers
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//======================================================================================================
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// Setting channel Weights : Applies to BC1, BC2 and BC3 valid ranges are [0..1.0f] Default is {1.0f, 1.0f , 1.0f}
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// Use channel weightings. With swizzled formats the weighting applies to the data within the specified channel not the channel itself.
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int CMP_CDECL SetChannelWeightsBC1(void *options, float WeightRed, float WeightGreen, float WeightBlue);
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int CMP_CDECL SetChannelWeightsBC2(void *options, float WeightRed, float WeightGreen, float WeightBlue);
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int CMP_CDECL SetChannelWeightsBC3(void *options, float WeightRed, float WeightGreen, float WeightBlue);
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// True sets mapping CMP_Core BC1, BC2 & BC3 to decode Red,Green,Blue and Alpha as
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// RGBA to channels [0,1,2,3] else BGRA maps to [0,1,2,3]
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// Default is set to true.
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int CMP_CDECL SetDecodeChannelMapping(void *options, bool mapRGBA);
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int CMP_CDECL SetQualityBC1(void *options, float fquality);
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int CMP_CDECL SetQualityBC2(void *options, float fquality);
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int CMP_CDECL SetQualityBC3(void *options, float fquality);
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int CMP_CDECL SetQualityBC4(void *options, float fquality);
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int CMP_CDECL SetQualityBC5(void *options, float fquality);
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int CMP_CDECL SetQualityBC6(void *options, float fquality);
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int CMP_CDECL SetQualityBC7(void *options, float fquality);
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int CMP_CDECL SetAlphaThresholdBC1(void *options, unsigned char alphaThreshold);
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int CMP_CDECL SetMaskBC6(void *options, unsigned int mask);
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int CMP_CDECL SetMaskBC7(void *options, unsigned char mask);
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int CMP_CDECL SetAlphaOptionsBC7(void *options, bool imageNeedsAlpha, bool colourRestrict, bool alphaRestrict);
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int CMP_CDECL SetErrorThresholdBC7(void *options, float minThreshold, float maxThreshold);
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//======================================================================================================
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// (4x4) Block level 4 channel source CompressBlock and DecompressBlock API for BCn Codecs
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//======================================================================================================
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// The options parameter for these API can be set to null in the calls if defaults settings is sufficient
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// Example: CompressBlockBC1(srcBlock,16,cmpBlock,NULL); For "C" call
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// CompressBlockBC1(srcBlock,16,cmpBlock); For "C++" calls
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//
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// To use this parameter first create the options context using the CreateOptions call
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// then use the Set Options to set various codec settings and pass them to the appropriate
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// Compress or Decompress API.
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// The source (srcBlock) channel format is expected to be RGBA:8888 by default for LDR Codecs
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// for BC6H the format is RGBA Half float (16 bits per channel)
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//------------------------------------------------------------------------------------------------------
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#ifdef __cplusplus
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#define CMP_DEFAULTNULL =NULL
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#else
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#define CMP_DEFAULTNULL
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#endif
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//=========================================================================================================
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// 4 channel Sources, default format RGBA:8888 is processed as a 4x4 block starting at srcBlock location
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// where each row of the block is calculated from srcStride
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//=========================================================================================================
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int CMP_CDECL CompressBlockBC1(const unsigned char *srcBlock, unsigned int srcStrideInBytes, unsigned char cmpBlock[8 ], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL CompressBlockBC2(const unsigned char *srcBlock, unsigned int srcStrideInBytes, unsigned char cmpBlock[16], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL CompressBlockBC3(const unsigned char *srcBlock, unsigned int srcStrideInBytes, unsigned char cmpBlock[16], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL CompressBlockBC7(const unsigned char *srcBlock, unsigned int srcStrideInBytes, unsigned char cmpBlock[16], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC1(const unsigned char cmpBlock[8 ], unsigned char srcBlock[64], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC2(const unsigned char cmpBlock[16], unsigned char srcBlock[64], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC3(const unsigned char cmpBlock[16], unsigned char srcBlock[64], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC7(const unsigned char cmpBlock[16], unsigned char srcBlock[64], const void *options CMP_DEFAULTNULL);
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//================================================
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// 1 channel Source 4x4 8 bits per block
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//================================================
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int CMP_CDECL CompressBlockBC4(const unsigned char *srcBlock, unsigned int srcStrideInBytes, unsigned char cmpBlock[8], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC4(const unsigned char cmpBlock[8], unsigned char srcBlock[16], const void *options CMP_DEFAULTNULL);
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//================================================
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// 2 channel Source 2x(4x4 8 bits)
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//================================================
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int CMP_CDECL CompressBlockBC5(const unsigned char *srcBlock1, unsigned int srcStrideInBytes1,
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const unsigned char *srcBlock2, unsigned int srcStrideInBytes2,
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unsigned char cmpBlock[16], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC5(const unsigned char cmpBlock[16], unsigned char srcBlock1[16], unsigned char srcBlock2[16], const void *options CMP_DEFAULTNULL);
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//========================================================================================
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// For 3 channel Source RGB_16, Note srcStride is in unsigned short steps (2 bytes each)
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//========================================================================================
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int CMP_CDECL CompressBlockBC6(const unsigned short *srcBlock, unsigned int srcStrideInShorts, unsigned char cmpBlock[16], const void *options CMP_DEFAULTNULL);
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int CMP_CDECL DecompressBlockBC6(const unsigned char cmpBlock[16], unsigned short srcBlock[48], const void *options CMP_DEFAULTNULL);
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#endif // CMP_CORE
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