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911 lines
37 KiB
911 lines
37 KiB
/* |
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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 **chrSrc, |
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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, long dstW, long chrDstW) |
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{ |
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yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize, |
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chrFilter, chrSrc, 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 **chrSrc, |
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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, chrSrc, 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 *chrSrc, const int16_t *alpSrc, |
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, |
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uint8_t *aDest, long dstW, long 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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if (val&256) { |
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if (val<0) val=0; |
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else val=255; |
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} |
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dest[i]= 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=(chrSrc[i ]+64)>>7; |
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int v=(chrSrc[i + VOFW]+64)>>7; |
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if ((u|v)&256) { |
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if (u<0) u=0; |
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else if (u>255) u=255; |
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if (v<0) v=0; |
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else if (v>255) v=255; |
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} |
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uDest[i]= u; |
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vDest[i]= 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 **chrSrc, |
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int chrFilterSize, const int16_t **alpSrc, |
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uint8_t *dest, long dstW, long dstY) |
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{ |
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yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize, |
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chrFilter, chrSrc, 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 *uvbuf0, |
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const uint16_t *uvbuf1, 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 *uvbuf0, const uint16_t *uvbuf1, |
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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 (flags&SWS_FULL_CHR_H_INT) { |
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c->yuv2packed2(c, buf0, buf0, uvbuf0, uvbuf1, abuf0, abuf0, dest, dstW, 0, uvalpha, y); |
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return; |
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} |
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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, long 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, long 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, long 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 + 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, long 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, long 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, long 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, long 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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long 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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long 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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static inline void bgr24ToY_c(uint8_t *dst, const uint8_t *src, |
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long 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, long 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, long 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, long 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, long 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, long 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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long 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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//printf("filterPos: %d\n", filterPos[i]); |
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for (j=0; j<filterSize; j++) { |
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//printf("filter: %d, src: %d\n", filter[i], src[srcPos + 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 *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 ],30775)*4663 - 9289992)>>12; //-264 |
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dst[i+VOFW] = (FFMIN(dst[i+VOFW],30775)*4663 - 9289992)>>12; //-264 |
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} |
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} |
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static void chrRangeFromJpeg_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 ]*1799 + 4081085)>>11; //1469 |
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dst[i+VOFW] = (dst[i+VOFW]*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, long 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, long 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 *, long, 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); |
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} |
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if (convertRange) |
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convertRange(dst, dstWidth); |
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} |
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static inline void hcscale_fast_c(SwsContext *c, int16_t *dst, |
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long dstWidth, const uint8_t *src1, |
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const uint8_t *src2, 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]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha); |
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dst[i+VOFW]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha); |
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/* slower |
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dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha; |
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dst[i+VOFW]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha; |
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*/ |
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xpos+=xInc; |
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} |
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} |
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inline static void hcscale_c(SwsContext *c, uint16_t *dst, long dstWidth, |
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const uint8_t *src1, const uint8_t *src2, |
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int srcW, int xInc, const int16_t *hChrFilter, |
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const int16_t *hChrFilterPos, int hChrFilterSize, |
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uint8_t *formatConvBuffer, uint32_t *pal) |
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{ |
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src1 += c->chrSrcOffset; |
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src2 += c->chrSrcOffset; |
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if (c->chrToYV12) { |
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c->chrToYV12(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal); |
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src1= formatConvBuffer; |
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src2= formatConvBuffer+VOFW; |
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} |
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if (!c->hcscale_fast) { |
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c->hScale(dst , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); |
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c->hScale(dst+VOFW, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); |
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} else { // fast bilinear upscale / crap downscale |
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c->hcscale_fast(c, dst, dstWidth, src1, src2, srcW, xInc); |
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} |
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if (c->chrConvertRange) |
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c->chrConvertRange(dst, dstWidth); |
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} |
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#define DEBUG_SWSCALE_BUFFERS 0 |
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#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__) |
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static int swScale_c(SwsContext *c, const uint8_t* src[], int srcStride[], |
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int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]) |
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{ |
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/* load a few things into local vars to make the code more readable? and faster */ |
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const int srcW= c->srcW; |
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const int dstW= c->dstW; |
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const int dstH= c->dstH; |
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const int chrDstW= c->chrDstW; |
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const int chrSrcW= c->chrSrcW; |
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const int lumXInc= c->lumXInc; |
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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 **chrPixBuf= c->chrPixBuf; |
|
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, chrPixBuf[ 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 (dstY < dstH-2) { |
|
const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize; |
|
const int16_t **chrSrcPtr= (const int16_t **) chrPixBuf + 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, chrSrcPtr, 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)) { |
|
yuv2yuvX16inC( |
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize, |
|
vChrFilter+chrDstY*vChrFilterSize, chrSrcPtr, 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 *chrBuf= chrSrcPtr[0]; |
|
const int16_t *alpBuf= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? alpSrcPtr[0] : NULL; |
|
c->yuv2yuv1(c, lumBuf, chrBuf, alpBuf, dest, uDest, vDest, aDest, dstW, chrDstW); |
|
} else { //General YV12 |
|
c->yuv2yuvX(c, |
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize, |
|
vChrFilter+chrDstY*vChrFilterSize, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW); |
|
} |
|
} else { |
|
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2); |
|
assert(chrSrcPtr + vChrFilterSize - 1 < chrPixBuf + 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, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, dstW, dstY); |
|
} else { |
|
c->yuv2packed1(c, *lumSrcPtr, *chrSrcPtr, *(chrSrcPtr+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, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, dstW, dstY); |
|
} else { |
|
c->yuv2packed2(c, *lumSrcPtr, *(lumSrcPtr+1), *chrSrcPtr, *(chrSrcPtr+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, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, dstW, dstY); |
|
} else { |
|
c->yuv2packedX(c, |
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize, |
|
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, 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 **chrSrcPtr= (const int16_t **)chrPixBuf + 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, chrSrcPtr, 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)) { |
|
yuv2yuvX16inC( |
|
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize, |
|
vChrFilter+chrDstY*vChrFilterSize, chrSrcPtr, 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, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW); |
|
} |
|
} else { |
|
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2); |
|
assert(chrSrcPtr + vChrFilterSize - 1 < chrPixBuf + vChrBufSize*2); |
|
if(flags & SWS_FULL_CHR_H_INT) { |
|
yuv2rgbXinC_full(c, |
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize, |
|
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, dstW, dstY); |
|
} else { |
|
yuv2packedXinC(c, |
|
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize, |
|
vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize, |
|
alpSrcPtr, dest, dstW, dstY); |
|
} |
|
} |
|
} |
|
} |
|
|
|
if ((dstFormat == PIX_FMT_YUVA420P) && !alpPixBuf) |
|
fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255); |
|
|
|
/* 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_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_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; |
|
}
|
|
|