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FFmpeg/libswscale/x86/yuv2rgb_template.c

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/*
* software YUV to RGB converter
*
* Copyright (C) 2001-2007 Michael Niedermayer
* (c) 2010 Konstantin Shishkov
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include "libavutil/x86/asm.h"
#include "libswscale/swscale_internal.h"
#define YUV2RGB_LOOP(depth) \
h_size = (c->dstW + 7) & ~7; \
if (h_size * depth > FFABS(dstStride[0])) \
h_size -= 8; \
\
vshift = c->srcFormat != AV_PIX_FMT_YUV422P; \
\
for (y = 0; y < srcSliceH; y++) { \
uint8_t *image = dst[0] + (y + srcSliceY) * dstStride[0]; \
const uint8_t *py = src[0] + y * srcStride[0]; \
const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \
const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \
x86_reg index = -h_size / 2; \
extern void RENAME(ff_yuv_420_rgb24)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
extern void RENAME(ff_yuv_420_bgr24)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
#ifndef COMPILE_TEMPLATE_MMXEXT
extern void RENAME(ff_yuv_420_rgb15)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
extern void RENAME(ff_yuv_420_rgb16)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
extern void RENAME(ff_yuv_420_rgb32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
extern void RENAME(ff_yuv_420_bgr32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index);
extern void RENAME(ff_yuva_420_rgb32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index, const uint8_t *pa_2index);
extern void RENAME(ff_yuva_420_bgr32)(x86_reg index, uint8_t *image, const uint8_t *pu_index,
const uint8_t *pv_index, const uint64_t *pointer_c_dither,
const uint8_t *py_2index, const uint8_t *pa_2index);
static inline int RENAME(yuv420_rgb15)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(2)
#ifdef DITHER1XBPP
c->blueDither = ff_dither8[y & 1];
c->greenDither = ff_dither8[y & 1];
c->redDither = ff_dither8[(y + 1) & 1];
#endif
RENAME(ff_yuv_420_rgb15)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuv420_rgb16)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(2)
#ifdef DITHER1XBPP
c->blueDither = ff_dither8[y & 1];
c->greenDither = ff_dither4[y & 1];
c->redDither = ff_dither8[(y + 1) & 1];
#endif
RENAME(ff_yuv_420_rgb16)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuv420_rgb32)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(4)
RENAME(ff_yuv_420_rgb32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuv420_bgr32)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(4)
RENAME(ff_yuv_420_bgr32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuva420_rgb32)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(4)
const uint8_t *pa = src[3] + y * srcStride[3];
RENAME(ff_yuva_420_rgb32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuva420_bgr32)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(4)
const uint8_t *pa = src[3] + y * srcStride[3];
RENAME(ff_yuva_420_bgr32)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
}
return srcSliceH;
}
#endif
#if !defined(COMPILE_TEMPLATE_MMX)
static inline int RENAME(yuv420_rgb24)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(3)
RENAME(ff_yuv_420_rgb24)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
static inline int RENAME(yuv420_bgr24)(SwsContext *c, const uint8_t *src[],
int srcStride[],
int srcSliceY, int srcSliceH,
uint8_t *dst[], int dstStride[])
{
int y, h_size, vshift;
YUV2RGB_LOOP(3)
RENAME(ff_yuv_420_bgr24)(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
}
return srcSliceH;
}
#endif