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