TexConv/CMP_CompressonatorLib/ETC/Codec_ETC2_RGBA1.cpp

118 lines
4.6 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_ETC2_RGBA1.cpp
// Description: implementation of the CCodec_ETC2 class
//
//////////////////////////////////////////////////////////////////////////////
#pragma warning(disable:4100)
#include "common.h"
#include "codec_etc2_rgba1.h"
#include "compressonator_tc.h"
#include "etcpack_lib.h"
//////////////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////////////
CCodec_ETC2_RGBA1::CCodec_ETC2_RGBA1(CodecType codecType) :
CCodec_ETC2(codecType) {
}
CCodec_ETC2_RGBA1::~CCodec_ETC2_RGBA1() {
}
CCodecBuffer* CCodec_ETC2_RGBA1::CreateBuffer(
CMP_BYTE nBlockWidth, CMP_BYTE nBlockHeight, CMP_BYTE nBlockDepth,
CMP_DWORD dwWidth, CMP_DWORD dwHeight, CMP_DWORD dwPitch, CMP_BYTE* pData,CMP_DWORD dwDataSize) const {
return CreateCodecBuffer(CBT_4x4Block_4BPP, 4,4,1,dwWidth, dwHeight, dwPitch, pData,dwDataSize);
}
CodecError CCodec_ETC2_RGBA1::Compress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2) {
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
readCompressParams();
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
CMP_BYTE srcBlock[BLOCK_SIZE_4X4X4];
CMP_DWORD compressedBlock[2];
for(CMP_DWORD j = 0; j < dwBlocksY; j++) {
for(CMP_DWORD i = 0; i < dwBlocksX; i++) {
bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
CompressRGBA1Block(srcBlock, compressedBlock);
bufferOut.WriteBlock(i*4, j*4, compressedBlock, 2);
}
if(pFeedbackProc) {
float fProgress = 100.f * (j * dwBlocksX) / (dwBlocksX * dwBlocksY);
if(pFeedbackProc(fProgress, pUser1, pUser2))
return CE_Aborted;
}
}
return CE_OK;
}
CodecError CCodec_ETC2_RGBA1::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2) {
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
CMP_DWORD compressedBlock[2];
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
for(CMP_DWORD j = 0; j < dwBlocksY; j++) {
for(CMP_DWORD i = 0; i < dwBlocksX; i++) {
bufferIn.ReadBlock(i*4, j*4, compressedBlock, 2);
DecompressRGBA1Block(destBlock, compressedBlock);
bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
}
if (pFeedbackProc) {
float fProgress = 100.f * (j * dwBlocksX) / dwBlocksXY;
if (pFeedbackProc(fProgress, pUser1, pUser2)) {
return CE_Aborted;
}
}
}
return CE_OK;
}