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956 lines
40 KiB
C
956 lines
40 KiB
C
/*
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* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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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static inline void yuv2yuvX_c(SwsContext *c, const int16_t *lumFilter,
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const int16_t **lumSrc, int lumFilterSize,
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const int16_t *chrFilter, const int16_t **chrUSrc,
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const int16_t **chrVSrc,
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int chrFilterSize, const int16_t **alpSrc,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest,
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uint8_t *aDest, int dstW, int chrDstW)
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{
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yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize,
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chrFilter, chrUSrc, chrVSrc, chrFilterSize,
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alpSrc, dest, uDest, vDest, aDest, dstW, chrDstW);
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}
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static inline void yuv2nv12X_c(SwsContext *c, const int16_t *lumFilter,
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const int16_t **lumSrc, int lumFilterSize,
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const int16_t *chrFilter, const int16_t **chrUSrc,
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const int16_t **chrVSrc,
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int chrFilterSize, uint8_t *dest, uint8_t *uDest,
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int dstW, int chrDstW, enum PixelFormat dstFormat)
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{
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yuv2nv12XinC(lumFilter, lumSrc, lumFilterSize,
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chrFilter, chrUSrc, chrVSrc, chrFilterSize,
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dest, uDest, dstW, chrDstW, dstFormat);
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}
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static inline void yuv2yuv1_c(SwsContext *c, const int16_t *lumSrc,
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const int16_t *chrUSrc, const int16_t *chrVSrc,
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const int16_t *alpSrc,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest,
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uint8_t *aDest, int dstW, int chrDstW)
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{
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int i;
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for (i=0; i<dstW; i++) {
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int val= (lumSrc[i]+64)>>7;
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dest[i]= av_clip_uint8(val);
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}
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if (uDest)
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for (i=0; i<chrDstW; i++) {
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int u=(chrUSrc[i]+64)>>7;
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int v=(chrVSrc[i]+64)>>7;
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uDest[i]= av_clip_uint8(u);
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vDest[i]= av_clip_uint8(v);
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}
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if (CONFIG_SWSCALE_ALPHA && aDest)
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for (i=0; i<dstW; i++) {
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int val= (alpSrc[i]+64)>>7;
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aDest[i]= av_clip_uint8(val);
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}
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}
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/**
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* vertical scale YV12 to RGB
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*/
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static inline void yuv2packedX_c(SwsContext *c, const int16_t *lumFilter,
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const int16_t **lumSrc, int lumFilterSize,
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const int16_t *chrFilter, const int16_t **chrUSrc,
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const int16_t **chrVSrc,
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int chrFilterSize, const int16_t **alpSrc,
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uint8_t *dest, int dstW, int dstY)
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{
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yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize,
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chrFilter, chrUSrc, chrVSrc, chrFilterSize,
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alpSrc, dest, dstW, dstY);
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}
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/**
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* vertical bilinear scale YV12 to RGB
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*/
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static inline void yuv2packed2_c(SwsContext *c, const uint16_t *buf0,
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const uint16_t *buf1, const uint16_t *ubuf0,
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const uint16_t *ubuf1, const uint16_t *vbuf0,
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const uint16_t *vbuf1, const uint16_t *abuf0,
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const uint16_t *abuf1, uint8_t *dest, int dstW,
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int yalpha, int uvalpha, int y)
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{
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int yalpha1=4095- yalpha;
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int uvalpha1=4095-uvalpha;
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int i;
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YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB2_C, YSCALE_YUV_2_PACKED2_C(void,0), YSCALE_YUV_2_GRAY16_2_C, YSCALE_YUV_2_MONO2_C)
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}
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/**
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* YV12 to RGB without scaling or interpolating
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*/
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static inline void yuv2packed1_c(SwsContext *c, const uint16_t *buf0,
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const uint16_t *ubuf0, const uint16_t *ubuf1,
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const uint16_t *vbuf0, const uint16_t *vbuf1,
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const uint16_t *abuf0, uint8_t *dest, int dstW,
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int uvalpha, enum PixelFormat dstFormat,
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int flags, int y)
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{
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const int yalpha1=0;
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int i;
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const uint16_t *buf1= buf0; //FIXME needed for RGB1/BGR1
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const int yalpha= 4096; //FIXME ...
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if (uvalpha < 2048) {
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YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1_C, YSCALE_YUV_2_PACKED1_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
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} else {
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YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1B_C, YSCALE_YUV_2_PACKED1B_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
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}
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}
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//FIXME yuy2* can read up to 7 samples too much
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static inline void yuy2ToY_c(uint8_t *dst, const uint8_t *src, int width,
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uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++)
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dst[i]= src[2*i];
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}
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static inline void yuy2ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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dstU[i]= src1[4*i + 1];
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dstV[i]= src1[4*i + 3];
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}
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assert(src1 == src2);
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}
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static inline void LEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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// FIXME I don't think this code is right for YUV444/422, since then h is not subsampled so
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// we need to skip each second pixel. Same for BEToUV.
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for (i=0; i<width; i++) {
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dstU[i]= src1[2*i + 1];
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dstV[i]= src2[2*i + 1];
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}
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}
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/* This is almost identical to the previous, end exists only because
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* yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
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static inline void uyvyToY_c(uint8_t *dst, const uint8_t *src, int width,
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uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++)
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dst[i]= src[2*i+1];
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}
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static inline void uyvyToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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dstU[i]= src1[4*i + 0];
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dstV[i]= src1[4*i + 2];
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}
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assert(src1 == src2);
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}
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static inline void BEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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dstU[i]= src1[2*i];
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dstV[i]= src2[2*i];
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}
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}
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static inline void nvXXtoUV_c(uint8_t *dst1, uint8_t *dst2,
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const uint8_t *src, int width)
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{
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int i;
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for (i = 0; i < width; i++) {
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dst1[i] = src[2*i+0];
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dst2[i] = src[2*i+1];
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}
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}
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static inline void nv12ToUV_c(uint8_t *dstU, uint8_t *dstV,
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const uint8_t *src1, const uint8_t *src2,
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int width, uint32_t *unused)
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{
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nvXXtoUV_c(dstU, dstV, src1, width);
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}
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static inline void nv21ToUV_c(uint8_t *dstU, uint8_t *dstV,
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const uint8_t *src1, const uint8_t *src2,
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int width, uint32_t *unused)
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{
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nvXXtoUV_c(dstV, dstU, src1, width);
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}
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// FIXME Maybe dither instead.
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#define YUV_NBPS(depth, endianness, rfunc) \
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static inline void endianness ## depth ## ToUV_c(uint8_t *dstU, uint8_t *dstV, \
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const uint8_t *_srcU, const uint8_t *_srcV, \
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int width, uint32_t *unused) \
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{ \
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int i; \
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const uint16_t *srcU = (const uint16_t*)_srcU; \
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const uint16_t *srcV = (const uint16_t*)_srcV; \
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for (i = 0; i < width; i++) { \
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dstU[i] = rfunc(&srcU[i])>>(depth-8); \
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dstV[i] = rfunc(&srcV[i])>>(depth-8); \
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} \
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} \
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\
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static inline void endianness ## depth ## ToY_c(uint8_t *dstY, const uint8_t *_srcY, int width, uint32_t *unused) \
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{ \
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int i; \
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const uint16_t *srcY = (const uint16_t*)_srcY; \
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for (i = 0; i < width; i++) \
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dstY[i] = rfunc(&srcY[i])>>(depth-8); \
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} \
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YUV_NBPS( 9, LE, AV_RL16)
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YUV_NBPS( 9, BE, AV_RB16)
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YUV_NBPS(10, LE, AV_RL16)
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YUV_NBPS(10, BE, AV_RB16)
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static inline void bgr24ToY_c(uint8_t *dst, const uint8_t *src,
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int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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int b= src[i*3+0];
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int g= src[i*3+1];
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int r= src[i*3+2];
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dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
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}
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}
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static inline void bgr24ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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int b= src1[3*i + 0];
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int g= src1[3*i + 1];
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int r= src1[3*i + 2];
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dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
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dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
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}
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assert(src1 == src2);
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}
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static inline void bgr24ToUV_half_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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int b= src1[6*i + 0] + src1[6*i + 3];
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int g= src1[6*i + 1] + src1[6*i + 4];
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int r= src1[6*i + 2] + src1[6*i + 5];
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dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
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dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
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}
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assert(src1 == src2);
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}
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static inline void rgb24ToY_c(uint8_t *dst, const uint8_t *src, int width,
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uint32_t *unused)
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{
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int i;
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for (i=0; i<width; i++) {
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int r= src[i*3+0];
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int g= src[i*3+1];
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int b= src[i*3+2];
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dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
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}
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}
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static inline void rgb24ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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assert(src1==src2);
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for (i=0; i<width; i++) {
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int r= src1[3*i + 0];
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int g= src1[3*i + 1];
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int b= src1[3*i + 2];
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dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
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dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
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}
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}
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static inline void rgb24ToUV_half_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
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const uint8_t *src2, int width, uint32_t *unused)
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{
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int i;
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assert(src1==src2);
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for (i=0; i<width; i++) {
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int r= src1[6*i + 0] + src1[6*i + 3];
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int g= src1[6*i + 1] + src1[6*i + 4];
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int b= src1[6*i + 2] + src1[6*i + 5];
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dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
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dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
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}
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}
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// bilinear / bicubic scaling
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static inline void hScale_c(int16_t *dst, int dstW, const uint8_t *src,
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int srcW, int xInc,
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const int16_t *filter, const int16_t *filterPos,
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int filterSize)
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{
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int i;
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for (i=0; i<dstW; i++) {
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int j;
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int srcPos= filterPos[i];
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int val=0;
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for (j=0; j<filterSize; j++) {
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val += ((int)src[srcPos + j])*filter[filterSize*i + j];
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}
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//filter += hFilterSize;
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dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ...
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//dst[i] = val>>7;
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}
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}
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//FIXME all pal and rgb srcFormats could do this convertion as well
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//FIXME all scalers more complex than bilinear could do half of this transform
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static void chrRangeToJpeg_c(uint16_t *dstU, uint16_t *dstV, int width)
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{
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int i;
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for (i = 0; i < width; i++) {
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dstU[i] = (FFMIN(dstU[i],30775)*4663 - 9289992)>>12; //-264
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dstV[i] = (FFMIN(dstV[i],30775)*4663 - 9289992)>>12; //-264
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}
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}
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static void chrRangeFromJpeg_c(uint16_t *dstU, uint16_t *dstV, int width)
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{
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int i;
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for (i = 0; i < width; i++) {
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dstU[i] = (dstU[i]*1799 + 4081085)>>11; //1469
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dstV[i] = (dstV[i]*1799 + 4081085)>>11; //1469
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}
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}
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static void lumRangeToJpeg_c(uint16_t *dst, int width)
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{
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int i;
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for (i = 0; i < width; i++)
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dst[i] = (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
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}
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static void lumRangeFromJpeg_c(uint16_t *dst, int width)
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{
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int i;
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for (i = 0; i < width; i++)
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dst[i] = (dst[i]*14071 + 33561947)>>14;
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}
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static inline void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
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const uint8_t *src, int srcW, int xInc)
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{
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int i;
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unsigned int xpos=0;
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for (i=0;i<dstWidth;i++) {
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register unsigned int xx=xpos>>16;
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register unsigned int xalpha=(xpos&0xFFFF)>>9;
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dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
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xpos+=xInc;
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}
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}
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// *** horizontal scale Y line to temp buffer
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static inline void hyscale_c(SwsContext *c, uint16_t *dst, int dstWidth,
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const uint8_t *src, int srcW, int xInc,
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const int16_t *hLumFilter,
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const int16_t *hLumFilterPos, int hLumFilterSize,
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uint8_t *formatConvBuffer,
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uint32_t *pal, int isAlpha)
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{
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void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) = isAlpha ? c->alpToYV12 : c->lumToYV12;
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void (*convertRange)(uint16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
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src += isAlpha ? c->alpSrcOffset : c->lumSrcOffset;
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if (toYV12) {
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toYV12(formatConvBuffer, src, srcW, pal);
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src= formatConvBuffer;
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}
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if (!c->hyscale_fast) {
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c->hScale(dst, dstWidth, src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize);
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} else { // fast bilinear upscale / crap downscale
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c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
|
|
}
|
|
|
|
if (convertRange)
|
|
convertRange(dst, dstWidth);
|
|
}
|
|
|
|
static inline void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
|
|
int dstWidth, const uint8_t *src1,
|
|
const uint8_t *src2, int srcW, int xInc)
|
|
{
|
|
int i;
|
|
unsigned int xpos=0;
|
|
for (i=0;i<dstWidth;i++) {
|
|
register unsigned int xx=xpos>>16;
|
|
register unsigned int xalpha=(xpos&0xFFFF)>>9;
|
|
dst1[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
|
|
dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
|
|
xpos+=xInc;
|
|
}
|
|
}
|
|
|
|
inline static void hcscale_c(SwsContext *c, uint16_t *dst1, uint16_t *dst2, int dstWidth,
|
|
const uint8_t *src1, const uint8_t *src2,
|
|
int srcW, int xInc, const int16_t *hChrFilter,
|
|
const int16_t *hChrFilterPos, int hChrFilterSize,
|
|
uint8_t *formatConvBuffer, uint32_t *pal)
|
|
{
|
|
|
|
src1 += c->chrSrcOffset;
|
|
src2 += c->chrSrcOffset;
|
|
|
|
if (c->chrToYV12) {
|
|
uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW, 16);
|
|
c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
|
|
src1= formatConvBuffer;
|
|
src2= buf2;
|
|
}
|
|
|
|
if (!c->hcscale_fast) {
|
|
c->hScale(dst1, dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
|
|
c->hScale(dst2, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
|
|
} else { // fast bilinear upscale / crap downscale
|
|
c->hcscale_fast(c, dst1, dst2, dstWidth, src1, src2, srcW, xInc);
|
|
}
|
|
|
|
if (c->chrConvertRange)
|
|
c->chrConvertRange(dst1, dst2, dstWidth);
|
|
}
|
|
|
|
#define DEBUG_SWSCALE_BUFFERS 0
|
|
#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
|
|
|
|
#if HAVE_MMX
|
|
static void updateMMXDitherTables(SwsContext *c, int dstY, int lumBufIndex, int chrBufIndex,
|
|
int lastInLumBuf, int lastInChrBuf);
|
|
#endif
|
|
|
|
static int swScale_c(SwsContext *c, const uint8_t* src[], int srcStride[],
|
|
int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[])
|
|
{
|
|
/* load a few things into local vars to make the code more readable? and faster */
|
|
const int srcW= c->srcW;
|
|
const int dstW= c->dstW;
|
|
const int dstH= c->dstH;
|
|
const int chrDstW= c->chrDstW;
|
|
const int chrSrcW= c->chrSrcW;
|
|
const int lumXInc= c->lumXInc;
|
|
const int chrXInc= c->chrXInc;
|
|
const enum PixelFormat dstFormat= c->dstFormat;
|
|
const int flags= c->flags;
|
|
int16_t *vLumFilterPos= c->vLumFilterPos;
|
|
int16_t *vChrFilterPos= c->vChrFilterPos;
|
|
int16_t *hLumFilterPos= c->hLumFilterPos;
|
|
int16_t *hChrFilterPos= c->hChrFilterPos;
|
|
int16_t *vLumFilter= c->vLumFilter;
|
|
int16_t *vChrFilter= c->vChrFilter;
|
|
int16_t *hLumFilter= c->hLumFilter;
|
|
int16_t *hChrFilter= c->hChrFilter;
|
|
int32_t *lumMmxFilter= c->lumMmxFilter;
|
|
int32_t *chrMmxFilter= c->chrMmxFilter;
|
|
int32_t av_unused *alpMmxFilter= c->alpMmxFilter;
|
|
const int vLumFilterSize= c->vLumFilterSize;
|
|
const int vChrFilterSize= c->vChrFilterSize;
|
|
const int hLumFilterSize= c->hLumFilterSize;
|
|
const int hChrFilterSize= c->hChrFilterSize;
|
|
int16_t **lumPixBuf= c->lumPixBuf;
|
|
int16_t **chrUPixBuf= c->chrUPixBuf;
|
|
int16_t **chrVPixBuf= c->chrVPixBuf;
|
|
int16_t **alpPixBuf= c->alpPixBuf;
|
|
const int vLumBufSize= c->vLumBufSize;
|
|
const int vChrBufSize= c->vChrBufSize;
|
|
uint8_t *formatConvBuffer= c->formatConvBuffer;
|
|
const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
|
|
const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
|
|
int lastDstY;
|
|
uint32_t *pal=c->pal_yuv;
|
|
|
|
/* vars which will change and which we need to store back in the context */
|
|
int dstY= c->dstY;
|
|
int lumBufIndex= c->lumBufIndex;
|
|
int chrBufIndex= c->chrBufIndex;
|
|
int lastInLumBuf= c->lastInLumBuf;
|
|
int lastInChrBuf= c->lastInChrBuf;
|
|
|
|
if (isPacked(c->srcFormat)) {
|
|
src[0]=
|
|
src[1]=
|
|
src[2]=
|
|
src[3]= src[0];
|
|
srcStride[0]=
|
|
srcStride[1]=
|
|
srcStride[2]=
|
|
srcStride[3]= srcStride[0];
|
|
}
|
|
srcStride[1]<<= c->vChrDrop;
|
|
srcStride[2]<<= c->vChrDrop;
|
|
|
|
DEBUG_BUFFERS("swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
|
|
src[0], srcStride[0], src[1], srcStride[1], src[2], srcStride[2], src[3], srcStride[3],
|
|
dst[0], dstStride[0], dst[1], dstStride[1], dst[2], dstStride[2], dst[3], dstStride[3]);
|
|
DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
|
|
srcSliceY, srcSliceH, dstY, dstH);
|
|
DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n",
|
|
vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
|
|
|
|
if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0) {
|
|
static int warnedAlready=0; //FIXME move this into the context perhaps
|
|
if (flags & SWS_PRINT_INFO && !warnedAlready) {
|
|
av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
|
|
" ->cannot do aligned memory accesses anymore\n");
|
|
warnedAlready=1;
|
|
}
|
|
}
|
|
|
|
/* Note the user might start scaling the picture in the middle so this
|
|
will not get executed. This is not really intended but works
|
|
currently, so people might do it. */
|
|
if (srcSliceY ==0) {
|
|
lumBufIndex=-1;
|
|
chrBufIndex=-1;
|
|
dstY=0;
|
|
lastInLumBuf= -1;
|
|
lastInChrBuf= -1;
|
|
}
|
|
|
|
lastDstY= dstY;
|
|
|
|
for (;dstY < dstH; dstY++) {
|
|
unsigned char *dest =dst[0]+dstStride[0]*dstY;
|
|
const int chrDstY= dstY>>c->chrDstVSubSample;
|
|
unsigned char *uDest=dst[1]+dstStride[1]*chrDstY;
|
|
unsigned char *vDest=dst[2]+dstStride[2]*chrDstY;
|
|
unsigned char *aDest=(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3]+dstStride[3]*dstY : NULL;
|
|
|
|
const int firstLumSrcY= vLumFilterPos[dstY]; //First line needed as input
|
|
const int firstLumSrcY2= vLumFilterPos[FFMIN(dstY | ((1<<c->chrDstVSubSample) - 1), dstH-1)];
|
|
const int firstChrSrcY= vChrFilterPos[chrDstY]; //First line needed as input
|
|
int lastLumSrcY= firstLumSrcY + vLumFilterSize -1; // Last line needed as input
|
|
int lastLumSrcY2=firstLumSrcY2+ vLumFilterSize -1; // Last line needed as input
|
|
int lastChrSrcY= firstChrSrcY + vChrFilterSize -1; // Last line needed as input
|
|
int enough_lines;
|
|
|
|
//handle holes (FAST_BILINEAR & weird filters)
|
|
if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;
|
|
if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;
|
|
assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
|
|
assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
|
|
|
|
DEBUG_BUFFERS("dstY: %d\n", dstY);
|
|
DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
|
|
firstLumSrcY, lastLumSrcY, lastInLumBuf);
|
|
DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
|
|
firstChrSrcY, lastChrSrcY, lastInChrBuf);
|
|
|
|
// Do we have enough lines in this slice to output the dstY line
|
|
enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample);
|
|
|
|
if (!enough_lines) {
|
|
lastLumSrcY = srcSliceY + srcSliceH - 1;
|
|
lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
|
|
DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
|
|
lastLumSrcY, lastChrSrcY);
|
|
}
|
|
|
|
//Do horizontal scaling
|
|
while(lastInLumBuf < lastLumSrcY) {
|
|
const uint8_t *src1= src[0]+(lastInLumBuf + 1 - srcSliceY)*srcStride[0];
|
|
const uint8_t *src2= src[3]+(lastInLumBuf + 1 - srcSliceY)*srcStride[3];
|
|
lumBufIndex++;
|
|
assert(lumBufIndex < 2*vLumBufSize);
|
|
assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
|
|
assert(lastInLumBuf + 1 - srcSliceY >= 0);
|
|
hyscale_c(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
|
|
hLumFilter, hLumFilterPos, hLumFilterSize,
|
|
formatConvBuffer,
|
|
pal, 0);
|
|
if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
|
|
hyscale_c(c, alpPixBuf[ lumBufIndex ], dstW, src2, srcW,
|
|
lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,
|
|
formatConvBuffer,
|
|
pal, 1);
|
|
lastInLumBuf++;
|
|
DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n",
|
|
lumBufIndex, lastInLumBuf);
|
|
}
|
|
while(lastInChrBuf < lastChrSrcY) {
|
|
const uint8_t *src1= src[1]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[1];
|
|
const uint8_t *src2= src[2]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[2];
|
|
chrBufIndex++;
|
|
assert(chrBufIndex < 2*vChrBufSize);
|
|
assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
|
|
assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
|
|
//FIXME replace parameters through context struct (some at least)
|
|
|
|
if (c->needs_hcscale)
|
|
hcscale_c(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
|
|
chrDstW, src1, src2, chrSrcW, chrXInc,
|
|
hChrFilter, hChrFilterPos, hChrFilterSize,
|
|
formatConvBuffer, pal);
|
|
lastInChrBuf++;
|
|
DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n",
|
|
chrBufIndex, lastInChrBuf);
|
|
}
|
|
//wrap buf index around to stay inside the ring buffer
|
|
if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
|
|
if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
|
|
if (!enough_lines)
|
|
break; //we can't output a dstY line so let's try with the next slice
|
|
|
|
#if HAVE_MMX
|
|
updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, lastInLumBuf, lastInChrBuf);
|
|
#endif
|
|
if (dstY < dstH-2) {
|
|
const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
|
|
const int16_t **chrUSrcPtr= (const int16_t **) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **chrVSrcPtr= (const int16_t **) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
|
|
if (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21) {
|
|
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
|
|
if (dstY&chrSkipMask) uDest= NULL; //FIXME split functions in lumi / chromi
|
|
c->yuv2nv12X(c,
|
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
dest, uDest, dstW, chrDstW, dstFormat);
|
|
} else if (isPlanarYUV(dstFormat) || dstFormat==PIX_FMT_GRAY8) { //YV12 like
|
|
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
|
|
if ((dstY&chrSkipMask) || isGray(dstFormat)) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
|
|
if (is16BPS(dstFormat) || is9_OR_10BPS(dstFormat)) {
|
|
yuv2yuvX16inC(vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr,
|
|
chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, (uint16_t *) dest, (uint16_t *) uDest,
|
|
(uint16_t *) vDest, (uint16_t *) aDest, dstW, chrDstW,
|
|
dstFormat);
|
|
} else if (vLumFilterSize == 1 && vChrFilterSize == 1) { // unscaled YV12
|
|
const int16_t *lumBuf = lumSrcPtr[0];
|
|
const int16_t *chrUBuf= chrUSrcPtr[0];
|
|
const int16_t *chrVBuf= chrVSrcPtr[0];
|
|
const int16_t *alpBuf= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? alpSrcPtr[0] : NULL;
|
|
c->yuv2yuv1(c, lumBuf, chrUBuf, chrVBuf, alpBuf, dest,
|
|
uDest, vDest, aDest, dstW, chrDstW);
|
|
} else { //General YV12
|
|
c->yuv2yuvX(c,
|
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr,
|
|
chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW);
|
|
}
|
|
} else {
|
|
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
|
|
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
|
|
if (vLumFilterSize == 1 && vChrFilterSize == 2) { //unscaled RGB
|
|
int chrAlpha= vChrFilter[2*dstY+1];
|
|
if(flags & SWS_FULL_CHR_H_INT) {
|
|
yuv2rgbXinC_full(c, //FIXME write a packed1_full function
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr,
|
|
chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
} else {
|
|
c->yuv2packed1(c, *lumSrcPtr, *chrUSrcPtr, *(chrUSrcPtr+1),
|
|
*chrVSrcPtr, *(chrVSrcPtr+1),
|
|
alpPixBuf ? *alpSrcPtr : NULL,
|
|
dest, dstW, chrAlpha, dstFormat, flags, dstY);
|
|
}
|
|
} else if (vLumFilterSize == 2 && vChrFilterSize == 2) { //bilinear upscale RGB
|
|
int lumAlpha= vLumFilter[2*dstY+1];
|
|
int chrAlpha= vChrFilter[2*dstY+1];
|
|
lumMmxFilter[2]=
|
|
lumMmxFilter[3]= vLumFilter[2*dstY ]*0x10001;
|
|
chrMmxFilter[2]=
|
|
chrMmxFilter[3]= vChrFilter[2*chrDstY]*0x10001;
|
|
if(flags & SWS_FULL_CHR_H_INT) {
|
|
yuv2rgbXinC_full(c, //FIXME write a packed2_full function
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
} else {
|
|
c->yuv2packed2(c, *lumSrcPtr, *(lumSrcPtr+1), *chrUSrcPtr, *(chrUSrcPtr+1),
|
|
*chrVSrcPtr, *(chrVSrcPtr+1),
|
|
alpPixBuf ? *alpSrcPtr : NULL, alpPixBuf ? *(alpSrcPtr+1) : NULL,
|
|
dest, dstW, lumAlpha, chrAlpha, dstY);
|
|
}
|
|
} else { //general RGB
|
|
if(flags & SWS_FULL_CHR_H_INT) {
|
|
yuv2rgbXinC_full(c,
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
} else {
|
|
c->yuv2packedX(c,
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
}
|
|
}
|
|
}
|
|
} else { // hmm looks like we can't use MMX here without overwriting this array's tail
|
|
const int16_t **lumSrcPtr= (const int16_t **)lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
|
|
const int16_t **chrUSrcPtr= (const int16_t **)chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **chrVSrcPtr= (const int16_t **)chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **)alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
|
|
if (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21) {
|
|
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
|
|
if (dstY&chrSkipMask) uDest= NULL; //FIXME split functions in lumi / chromi
|
|
yuv2nv12XinC(
|
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
dest, uDest, dstW, chrDstW, dstFormat);
|
|
} else if (isPlanarYUV(dstFormat) || dstFormat==PIX_FMT_GRAY8) { //YV12
|
|
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
|
|
if ((dstY&chrSkipMask) || isGray(dstFormat)) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
|
|
if (is16BPS(dstFormat) || is9_OR_10BPS(dstFormat)) {
|
|
yuv2yuvX16inC(
|
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, (uint16_t *) dest, (uint16_t *) uDest, (uint16_t *) vDest, (uint16_t *) aDest, dstW, chrDstW,
|
|
dstFormat);
|
|
} else {
|
|
yuv2yuvXinC(
|
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW);
|
|
}
|
|
} else {
|
|
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
|
|
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
|
|
if(flags & SWS_FULL_CHR_H_INT) {
|
|
yuv2rgbXinC_full(c,
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
} else {
|
|
yuv2packedXinC(c,
|
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
|
|
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest, dstW, dstY);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((dstFormat == PIX_FMT_YUVA420P) && !alpPixBuf)
|
|
fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255);
|
|
|
|
#if HAVE_MMX2
|
|
if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)
|
|
__asm__ volatile("sfence":::"memory");
|
|
#endif
|
|
emms_c();
|
|
|
|
/* store changed local vars back in the context */
|
|
c->dstY= dstY;
|
|
c->lumBufIndex= lumBufIndex;
|
|
c->chrBufIndex= chrBufIndex;
|
|
c->lastInLumBuf= lastInLumBuf;
|
|
c->lastInChrBuf= lastInChrBuf;
|
|
|
|
return dstY - lastDstY;
|
|
}
|
|
|
|
static void sws_init_swScale_c(SwsContext *c)
|
|
{
|
|
enum PixelFormat srcFormat = c->srcFormat;
|
|
|
|
c->yuv2nv12X = yuv2nv12X_c;
|
|
c->yuv2yuv1 = yuv2yuv1_c;
|
|
c->yuv2yuvX = yuv2yuvX_c;
|
|
c->yuv2packed1 = yuv2packed1_c;
|
|
c->yuv2packed2 = yuv2packed2_c;
|
|
c->yuv2packedX = yuv2packedX_c;
|
|
|
|
c->hScale = hScale_c;
|
|
|
|
if (c->flags & SWS_FAST_BILINEAR)
|
|
{
|
|
c->hyscale_fast = hyscale_fast_c;
|
|
c->hcscale_fast = hcscale_fast_c;
|
|
}
|
|
|
|
c->chrToYV12 = NULL;
|
|
switch(srcFormat) {
|
|
case PIX_FMT_YUYV422 : c->chrToYV12 = yuy2ToUV_c; break;
|
|
case PIX_FMT_UYVY422 : c->chrToYV12 = uyvyToUV_c; break;
|
|
case PIX_FMT_NV12 : c->chrToYV12 = nv12ToUV_c; break;
|
|
case PIX_FMT_NV21 : c->chrToYV12 = nv21ToUV_c; break;
|
|
case PIX_FMT_RGB8 :
|
|
case PIX_FMT_BGR8 :
|
|
case PIX_FMT_PAL8 :
|
|
case PIX_FMT_BGR4_BYTE:
|
|
case PIX_FMT_RGB4_BYTE: c->chrToYV12 = palToUV; break;
|
|
case PIX_FMT_YUV420P9BE: c->chrToYV12 = BE9ToUV_c; break;
|
|
case PIX_FMT_YUV420P9LE: c->chrToYV12 = LE9ToUV_c; break;
|
|
case PIX_FMT_YUV420P10BE: c->chrToYV12 = BE10ToUV_c; break;
|
|
case PIX_FMT_YUV420P10LE: c->chrToYV12 = LE10ToUV_c; break;
|
|
case PIX_FMT_YUV420P16BE:
|
|
case PIX_FMT_YUV422P16BE:
|
|
case PIX_FMT_YUV444P16BE: c->chrToYV12 = BEToUV_c; break;
|
|
case PIX_FMT_YUV420P16LE:
|
|
case PIX_FMT_YUV422P16LE:
|
|
case PIX_FMT_YUV444P16LE: c->chrToYV12 = LEToUV_c; break;
|
|
}
|
|
if (c->chrSrcHSubSample) {
|
|
switch(srcFormat) {
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48ToUV_half; break;
|
|
case PIX_FMT_BGR48BE:
|
|
case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48ToUV_half; break;
|
|
case PIX_FMT_RGB32 : c->chrToYV12 = bgr32ToUV_half; break;
|
|
case PIX_FMT_RGB32_1: c->chrToYV12 = bgr321ToUV_half; break;
|
|
case PIX_FMT_BGR24 : c->chrToYV12 = bgr24ToUV_half_c; break;
|
|
case PIX_FMT_BGR565 : c->chrToYV12 = bgr16ToUV_half; break;
|
|
case PIX_FMT_BGR555 : c->chrToYV12 = bgr15ToUV_half; break;
|
|
case PIX_FMT_BGR32 : c->chrToYV12 = rgb32ToUV_half; break;
|
|
case PIX_FMT_BGR32_1: c->chrToYV12 = rgb321ToUV_half; break;
|
|
case PIX_FMT_RGB24 : c->chrToYV12 = rgb24ToUV_half_c; break;
|
|
case PIX_FMT_RGB565 : c->chrToYV12 = rgb16ToUV_half; break;
|
|
case PIX_FMT_RGB555 : c->chrToYV12 = rgb15ToUV_half; break;
|
|
}
|
|
} else {
|
|
switch(srcFormat) {
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48ToUV; break;
|
|
case PIX_FMT_BGR48BE:
|
|
case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48ToUV; break;
|
|
case PIX_FMT_RGB32 : c->chrToYV12 = bgr32ToUV; break;
|
|
case PIX_FMT_RGB32_1: c->chrToYV12 = bgr321ToUV; break;
|
|
case PIX_FMT_BGR24 : c->chrToYV12 = bgr24ToUV_c; break;
|
|
case PIX_FMT_BGR565 : c->chrToYV12 = bgr16ToUV; break;
|
|
case PIX_FMT_BGR555 : c->chrToYV12 = bgr15ToUV; break;
|
|
case PIX_FMT_BGR32 : c->chrToYV12 = rgb32ToUV; break;
|
|
case PIX_FMT_BGR32_1: c->chrToYV12 = rgb321ToUV; break;
|
|
case PIX_FMT_RGB24 : c->chrToYV12 = rgb24ToUV_c; break;
|
|
case PIX_FMT_RGB565 : c->chrToYV12 = rgb16ToUV; break;
|
|
case PIX_FMT_RGB555 : c->chrToYV12 = rgb15ToUV; break;
|
|
}
|
|
}
|
|
|
|
c->lumToYV12 = NULL;
|
|
c->alpToYV12 = NULL;
|
|
switch (srcFormat) {
|
|
case PIX_FMT_YUV420P9BE: c->lumToYV12 = BE9ToY_c; break;
|
|
case PIX_FMT_YUV420P9LE: c->lumToYV12 = LE9ToY_c; break;
|
|
case PIX_FMT_YUV420P10BE: c->lumToYV12 = BE10ToY_c; break;
|
|
case PIX_FMT_YUV420P10LE: c->lumToYV12 = LE10ToY_c; break;
|
|
case PIX_FMT_YUYV422 :
|
|
case PIX_FMT_YUV420P16BE:
|
|
case PIX_FMT_YUV422P16BE:
|
|
case PIX_FMT_YUV444P16BE:
|
|
case PIX_FMT_Y400A :
|
|
case PIX_FMT_GRAY16BE : c->lumToYV12 = yuy2ToY_c; break;
|
|
case PIX_FMT_UYVY422 :
|
|
case PIX_FMT_YUV420P16LE:
|
|
case PIX_FMT_YUV422P16LE:
|
|
case PIX_FMT_YUV444P16LE:
|
|
case PIX_FMT_GRAY16LE : c->lumToYV12 = uyvyToY_c; break;
|
|
case PIX_FMT_BGR24 : c->lumToYV12 = bgr24ToY_c; break;
|
|
case PIX_FMT_BGR565 : c->lumToYV12 = bgr16ToY; break;
|
|
case PIX_FMT_BGR555 : c->lumToYV12 = bgr15ToY; break;
|
|
case PIX_FMT_RGB24 : c->lumToYV12 = rgb24ToY_c; break;
|
|
case PIX_FMT_RGB565 : c->lumToYV12 = rgb16ToY; break;
|
|
case PIX_FMT_RGB555 : c->lumToYV12 = rgb15ToY; break;
|
|
case PIX_FMT_RGB8 :
|
|
case PIX_FMT_BGR8 :
|
|
case PIX_FMT_PAL8 :
|
|
case PIX_FMT_BGR4_BYTE:
|
|
case PIX_FMT_RGB4_BYTE: c->lumToYV12 = palToY; break;
|
|
case PIX_FMT_MONOBLACK: c->lumToYV12 = monoblack2Y; break;
|
|
case PIX_FMT_MONOWHITE: c->lumToYV12 = monowhite2Y; break;
|
|
case PIX_FMT_RGB32 : c->lumToYV12 = bgr32ToY; break;
|
|
case PIX_FMT_RGB32_1: c->lumToYV12 = bgr321ToY; break;
|
|
case PIX_FMT_BGR32 : c->lumToYV12 = rgb32ToY; break;
|
|
case PIX_FMT_BGR32_1: c->lumToYV12 = rgb321ToY; break;
|
|
case PIX_FMT_RGB48BE:
|
|
case PIX_FMT_RGB48LE: c->lumToYV12 = rgb48ToY; break;
|
|
case PIX_FMT_BGR48BE:
|
|
case PIX_FMT_BGR48LE: c->lumToYV12 = bgr48ToY; break;
|
|
}
|
|
if (c->alpPixBuf) {
|
|
switch (srcFormat) {
|
|
case PIX_FMT_RGB32 :
|
|
case PIX_FMT_RGB32_1:
|
|
case PIX_FMT_BGR32 :
|
|
case PIX_FMT_BGR32_1: c->alpToYV12 = abgrToA; break;
|
|
case PIX_FMT_Y400A : c->alpToYV12 = yuy2ToY_c; break;
|
|
}
|
|
}
|
|
|
|
switch (srcFormat) {
|
|
case PIX_FMT_Y400A :
|
|
c->alpSrcOffset = 1;
|
|
break;
|
|
case PIX_FMT_RGB32 :
|
|
case PIX_FMT_BGR32 :
|
|
c->alpSrcOffset = 3;
|
|
break;
|
|
case PIX_FMT_RGB48LE:
|
|
case PIX_FMT_BGR48LE:
|
|
c->lumSrcOffset = 1;
|
|
c->chrSrcOffset = 1;
|
|
c->alpSrcOffset = 1;
|
|
break;
|
|
}
|
|
|
|
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
|
|
if (c->srcRange) {
|
|
c->lumConvertRange = lumRangeFromJpeg_c;
|
|
c->chrConvertRange = chrRangeFromJpeg_c;
|
|
} else {
|
|
c->lumConvertRange = lumRangeToJpeg_c;
|
|
c->chrConvertRange = chrRangeToJpeg_c;
|
|
}
|
|
}
|
|
|
|
if (!(isGray(srcFormat) || isGray(c->dstFormat) ||
|
|
srcFormat == PIX_FMT_MONOBLACK || srcFormat == PIX_FMT_MONOWHITE))
|
|
c->needs_hcscale = 1;
|
|
}
|