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libbpg-0.9.6

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King_DuckZ 2015-10-27 11:46:00 +01:00
parent 3035b41edf
commit 35a8402710
248 changed files with 232891 additions and 100 deletions
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x265/source/common/shortyuv.h Normal file
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/*****************************************************************************
* x265: ShortYUV class for short sized YUV-style frames
*****************************************************************************
* Copyright (C) 2013 x265 project
*
* Authors: Deepthi Nandakumar <deepthi@multicorewareinc.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at license @ x265.com
*****************************************************************************/
#ifndef X265_SHORTYUV_H
#define X265_SHORTYUV_H
#include "common.h"
namespace X265_NS {
// private namespace
class Yuv;
/* A ShortYuv instance holds int16_ts for a square CU (64x64 down to 8x8) for all three planes,
* these are typically used to hold residual or coefficients */
class ShortYuv
{
public:
int16_t* m_buf[3];
uint32_t m_size;
uint32_t m_csize;
int m_csp;
int m_hChromaShift;
int m_vChromaShift;
ShortYuv();
bool create(uint32_t size, int csp);
void destroy();
void clear();
int16_t* getLumaAddr(uint32_t absPartIdx) { return m_buf[0] + getAddrOffset(absPartIdx, m_size); }
int16_t* getCbAddr(uint32_t absPartIdx) { return m_buf[1] + getChromaAddrOffset(absPartIdx); }
int16_t* getCrAddr(uint32_t absPartIdx) { return m_buf[2] + getChromaAddrOffset(absPartIdx); }
int16_t* getChromaAddr(uint32_t chromaId, uint32_t partUnitIdx) { return m_buf[chromaId] + getChromaAddrOffset(partUnitIdx); }
const int16_t* getLumaAddr(uint32_t absPartIdx) const { return m_buf[0] + getAddrOffset(absPartIdx, m_size); }
const int16_t* getCbAddr(uint32_t absPartIdx) const { return m_buf[1] + getChromaAddrOffset(absPartIdx); }
const int16_t* getCrAddr(uint32_t absPartIdx) const { return m_buf[2] + getChromaAddrOffset(absPartIdx); }
const int16_t* getChromaAddr(uint32_t chromaId, uint32_t partUnitIdx) const { return m_buf[chromaId] + getChromaAddrOffset(partUnitIdx); }
void subtract(const Yuv& srcYuv0, const Yuv& srcYuv1, uint32_t log2Size);
void copyPartToPartLuma(ShortYuv& dstYuv, uint32_t absPartIdx, uint32_t log2Size) const;
void copyPartToPartChroma(ShortYuv& dstYuv, uint32_t absPartIdx, uint32_t log2SizeL) const;
void copyPartToPartLuma(Yuv& dstYuv, uint32_t absPartIdx, uint32_t log2Size) const;
void copyPartToPartChroma(Yuv& dstYuv, uint32_t absPartIdx, uint32_t log2SizeL) const;
int getChromaAddrOffset(uint32_t idx) const
{
int blkX = g_zscanToPelX[idx] >> m_hChromaShift;
int blkY = g_zscanToPelY[idx] >> m_vChromaShift;
return blkX + blkY * m_csize;
}
static int getAddrOffset(uint32_t idx, uint32_t width)
{
int blkX = g_zscanToPelX[idx];
int blkY = g_zscanToPelY[idx];
return blkX + blkY * width;
}
};
}
#endif // ifndef X265_SHORTYUV_H