112 lines
4.4 KiB
C++
112 lines
4.4 KiB
C++
/*****************************************************************************
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* Copyright (C) 2015 x265 project
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*
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* Authors: Steve Borho <steve@borho.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*
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* This program is also available under a commercial proprietary license.
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* For more information, contact us at license @ x265.com.
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*****************************************************************************/
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#ifndef X265_YUV_H
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#define X265_YUV_H
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#include "common.h"
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#include "primitives.h"
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namespace X265_NS {
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// private namespace
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class ShortYuv;
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class PicYuv;
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/* A Yuv instance holds pixels for a square CU (64x64 down to 8x8) for all three planes
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* these are typically used to hold fenc, predictions, or reconstructed blocks */
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class Yuv
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{
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public:
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pixel* m_buf[3];
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uint32_t m_size;
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uint32_t m_csize;
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int m_part; // cached partition enum size
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int m_csp;
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int m_hChromaShift;
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int m_vChromaShift;
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Yuv();
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bool create(uint32_t size, int csp);
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void destroy();
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// Copy YUV buffer to picture buffer
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void copyToPicYuv(PicYuv& destPicYuv, uint32_t cuAddr, uint32_t absPartIdx) const;
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// Copy YUV buffer from picture buffer
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void copyFromPicYuv(const PicYuv& srcPicYuv, uint32_t cuAddr, uint32_t absPartIdx);
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// Copy from same size YUV buffer
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void copyFromYuv(const Yuv& srcYuv);
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// Copy portion of srcYuv into ME prediction buffer
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void copyPUFromYuv(const Yuv& srcYuv, uint32_t absPartIdx, int partEnum, bool bChroma);
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// Copy Small YUV buffer to the part of other Big YUV buffer
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void copyToPartYuv(Yuv& dstYuv, uint32_t absPartIdx) const;
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// Copy the part of Big YUV buffer to other Small YUV buffer
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void copyPartToYuv(Yuv& dstYuv, uint32_t absPartIdx) const;
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// Clip(srcYuv0 + srcYuv1) -> m_buf .. aka recon = clip(pred + residual)
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void addClip(const Yuv& srcYuv0, const ShortYuv& srcYuv1, uint32_t log2SizeL);
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// (srcYuv0 + srcYuv1)/2 for YUV partition (bidir averaging)
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void addAvg(const ShortYuv& srcYuv0, const ShortYuv& srcYuv1, uint32_t absPartIdx, uint32_t width, uint32_t height, bool bLuma, bool bChroma);
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void copyPartToPartLuma(Yuv& dstYuv, uint32_t absPartIdx, uint32_t log2Size) const;
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void copyPartToPartChroma(Yuv& dstYuv, uint32_t absPartIdx, uint32_t log2SizeL) const;
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pixel* getLumaAddr(uint32_t absPartIdx) { return m_buf[0] + getAddrOffset(absPartIdx, m_size); }
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pixel* getCbAddr(uint32_t absPartIdx) { return m_buf[1] + getChromaAddrOffset(absPartIdx); }
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pixel* getCrAddr(uint32_t absPartIdx) { return m_buf[2] + getChromaAddrOffset(absPartIdx); }
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pixel* getChromaAddr(uint32_t chromaId, uint32_t absPartIdx) { return m_buf[chromaId] + getChromaAddrOffset(absPartIdx); }
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const pixel* getLumaAddr(uint32_t absPartIdx) const { return m_buf[0] + getAddrOffset(absPartIdx, m_size); }
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const pixel* getCbAddr(uint32_t absPartIdx) const { return m_buf[1] + getChromaAddrOffset(absPartIdx); }
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const pixel* getCrAddr(uint32_t absPartIdx) const { return m_buf[2] + getChromaAddrOffset(absPartIdx); }
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const pixel* getChromaAddr(uint32_t chromaId, uint32_t absPartIdx) const { return m_buf[chromaId] + getChromaAddrOffset(absPartIdx); }
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int getChromaAddrOffset(uint32_t absPartIdx) const
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{
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int blkX = g_zscanToPelX[absPartIdx] >> m_hChromaShift;
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int blkY = g_zscanToPelY[absPartIdx] >> m_vChromaShift;
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return blkX + blkY * m_csize;
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}
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static int getAddrOffset(uint32_t absPartIdx, uint32_t width)
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{
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int blkX = g_zscanToPelX[absPartIdx];
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int blkY = g_zscanToPelY[absPartIdx];
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return blkX + blkY * width;
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}
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};
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}
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#endif
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