99 lines
3.9 KiB
C++
99 lines
3.9 KiB
C++
//===============================================================================
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// Copyright (c) 2007-2016 Advanced Micro Devices, Inc. All rights reserved.
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// Copyright (c) 2004-2006 ATI Technologies Inc.
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//===============================================================================
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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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#include "common.h" // napatel
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#ifdef SUPPORT_ETC_ALPHA
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#include "etcpack.h"
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#include "codec_etc_rgba_explicit.h"
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//////////////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////////////
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CCodec_ETC_RGBA_Explicit::CCodec_ETC_RGBA_Explicit() :
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CCodec_ETC(CT_ETC_RGBA_Explicit) {
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}
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CCodec_ETC_RGBA_Explicit::~CCodec_ETC_RGBA_Explicit() {
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}
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CodecError CCodec_ETC_RGBA_Explicit::Compress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, DWORD_PTR pUser1, DWORD_PTR pUser2) {
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assert(bufferIn.GetWidth() == bufferOut.GetWidth());
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assert(bufferIn.GetHeight() == bufferOut.GetHeight());
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if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
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return CE_Unknown;
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readCompressParams();
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const AMD_TC_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
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const AMD_TC_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
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AMD_TC_BYTE srcBlock[BLOCK_SIZE_4X4X4];
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AMD_TC_DWORD compressedBlock[4];
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for(AMD_TC_DWORD j = 0; j < dwBlocksY; j++) {
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for(AMD_TC_DWORD i = 0; i < dwBlocksX; i++) {
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bufferIn.ReadBlockRGBA(i*4, j*4, 4, 4, srcBlock);
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CompressRGBABlock_ExplicitAlpha(srcBlock, compressedBlock);
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bufferOut.WriteBlock(i*4, j*4, compressedBlock, 4);
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}
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if(pFeedbackProc) {
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float fProgress = 100.f * (j * dwBlocksX) / (dwBlocksX * dwBlocksY);
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if(pFeedbackProc(fProgress, pUser1, pUser2))
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return CE_Aborted;
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}
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}
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return CE_OK;
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}
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CodecError CCodec_ETC_RGBA_Explicit::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut) {
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assert(bufferIn.GetWidth() == bufferOut.GetWidth());
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assert(bufferIn.GetHeight() == bufferOut.GetHeight());
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if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
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return CE_Unknown;
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const AMD_TC_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
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const AMD_TC_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
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AMD_TC_DWORD compressedBlock[4];
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AMD_TC_BYTE destBlock[BLOCK_SIZE_4X4X4];
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for(AMD_TC_DWORD j = 0; j < dwBlocksY; j++) {
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for(AMD_TC_DWORD i = 0; i < dwBlocksX; i++) {
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bufferIn.ReadBlock(i*4, j*4, compressedBlock, 4);
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DecompressRGBABlock_ExplicitAlpha(destBlock, compressedBlock);
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bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
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}
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}
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return CE_OK;
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}
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#endif // SUPPORT_ETC_ALPHA
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