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Diffstat (limited to 'libswscale/ppc/swscale_template.c')
| -rw-r--r-- | libswscale/ppc/swscale_template.c | 918 |
1 files changed, 918 insertions, 0 deletions
diff --git a/libswscale/ppc/swscale_template.c b/libswscale/ppc/swscale_template.c new file mode 100644 index 0000000000..30bf20d44a --- /dev/null +++ b/libswscale/ppc/swscale_template.c @@ -0,0 +1,918 @@ +/* + * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + + +#if COMPILE_TEMPLATE_ALTIVEC +#include "swscale_altivec_template.c" +#endif + +static inline void RENAME(yuv2yuvX)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, + const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize, const int16_t **alpSrc, + uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, long dstW, long chrDstW) +{ +#if COMPILE_TEMPLATE_ALTIVEC + yuv2yuvX_altivec_real(lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + dest, uDest, vDest, dstW, chrDstW); +#else //COMPILE_TEMPLATE_ALTIVEC + yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + alpSrc, dest, uDest, vDest, aDest, dstW, chrDstW); +#endif //!COMPILE_TEMPLATE_ALTIVEC +} + +static inline void RENAME(yuv2nv12X)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, + const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize, + uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, enum PixelFormat dstFormat) +{ + yuv2nv12XinC(lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + dest, uDest, dstW, chrDstW, dstFormat); +} + +static inline void RENAME(yuv2yuv1)(SwsContext *c, const int16_t *lumSrc, const int16_t *chrSrc, const int16_t *alpSrc, + uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, long dstW, long chrDstW) +{ + int i; + for (i=0; i<dstW; i++) { + int val= (lumSrc[i]+64)>>7; + + if (val&256) { + if (val<0) val=0; + else val=255; + } + + dest[i]= val; + } + + if (uDest) + for (i=0; i<chrDstW; i++) { + int u=(chrSrc[i ]+64)>>7; + int v=(chrSrc[i + VOFW]+64)>>7; + + if ((u|v)&256) { + if (u<0) u=0; + else if (u>255) u=255; + if (v<0) v=0; + else if (v>255) v=255; + } + + uDest[i]= u; + vDest[i]= v; + } + + if (CONFIG_SWSCALE_ALPHA && aDest) + for (i=0; i<dstW; i++) { + int val= (alpSrc[i]+64)>>7; + aDest[i]= av_clip_uint8(val); + } +} + + +/** + * vertical scale YV12 to RGB + */ +static inline void RENAME(yuv2packedX)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize, + const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize, + const int16_t **alpSrc, uint8_t *dest, long dstW, long dstY) +{ +#if COMPILE_TEMPLATE_ALTIVEC + /* The following list of supported dstFormat values should + match what's found in the body of ff_yuv2packedX_altivec() */ + if (!(c->flags & SWS_BITEXACT) && !c->alpPixBuf && + (c->dstFormat==PIX_FMT_ABGR || c->dstFormat==PIX_FMT_BGRA || + c->dstFormat==PIX_FMT_BGR24 || c->dstFormat==PIX_FMT_RGB24 || + c->dstFormat==PIX_FMT_RGBA || c->dstFormat==PIX_FMT_ARGB)) + ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + dest, dstW, dstY); + else +#endif + yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize, + chrFilter, chrSrc, chrFilterSize, + alpSrc, dest, dstW, dstY); +} + +/** + * vertical bilinear scale YV12 to RGB + */ +static inline void RENAME(yuv2packed2)(SwsContext *c, const uint16_t *buf0, const uint16_t *buf1, const uint16_t *uvbuf0, const uint16_t *uvbuf1, + const uint16_t *abuf0, const uint16_t *abuf1, uint8_t *dest, int dstW, int yalpha, int uvalpha, int y) +{ + int yalpha1=4095- yalpha; + int uvalpha1=4095-uvalpha; + int i; + + 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) +} + +/** + * YV12 to RGB without scaling or interpolating + */ +static inline void RENAME(yuv2packed1)(SwsContext *c, const uint16_t *buf0, const uint16_t *uvbuf0, const uint16_t *uvbuf1, + const uint16_t *abuf0, uint8_t *dest, int dstW, int uvalpha, enum PixelFormat dstFormat, int flags, int y) +{ + const int yalpha1=0; + int i; + + const uint16_t *buf1= buf0; //FIXME needed for RGB1/BGR1 + const int yalpha= 4096; //FIXME ... + + if (flags&SWS_FULL_CHR_H_INT) { + c->yuv2packed2(c, buf0, buf0, uvbuf0, uvbuf1, abuf0, abuf0, dest, dstW, 0, uvalpha, y); + return; + } + + if (uvalpha < 2048) { + 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) + } else { + 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) + } +} + +//FIXME yuy2* can read up to 7 samples too much + +static inline void RENAME(yuy2ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) + dst[i]= src[2*i]; +} + +static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + dstU[i]= src1[4*i + 1]; + dstV[i]= src1[4*i + 3]; + } + assert(src1 == src2); +} + +static inline void RENAME(LEToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + dstU[i]= src1[2*i + 1]; + dstV[i]= src2[2*i + 1]; + } +} + +/* This is almost identical to the previous, end exists only because + * yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */ +static inline void RENAME(uyvyToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) + dst[i]= src[2*i+1]; +} + +static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + dstU[i]= src1[4*i + 0]; + dstV[i]= src1[4*i + 2]; + } + assert(src1 == src2); +} + +static inline void RENAME(BEToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + dstU[i]= src1[2*i]; + dstV[i]= src2[2*i]; + } +} + +static inline void RENAME(nvXXtoUV)(uint8_t *dst1, uint8_t *dst2, + const uint8_t *src, long width) +{ + int i; + for (i = 0; i < width; i++) { + dst1[i] = src[2*i+0]; + dst2[i] = src[2*i+1]; + } +} + +static inline void RENAME(nv12ToUV)(uint8_t *dstU, uint8_t *dstV, + const uint8_t *src1, const uint8_t *src2, + long width, uint32_t *unused) +{ + RENAME(nvXXtoUV)(dstU, dstV, src1, width); +} + +static inline void RENAME(nv21ToUV)(uint8_t *dstU, uint8_t *dstV, + const uint8_t *src1, const uint8_t *src2, + long width, uint32_t *unused) +{ + RENAME(nvXXtoUV)(dstV, dstU, src1, width); +} + + +static inline void RENAME(bgr24ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + int b= src[i*3+0]; + int g= src[i*3+1]; + int r= src[i*3+2]; + + dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); + } +} + +static inline void RENAME(bgr24ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + int b= src1[3*i + 0]; + int g= src1[3*i + 1]; + int r= src1[3*i + 2]; + + dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT; + dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT; + } + assert(src1 == src2); +} + +static inline void RENAME(bgr24ToUV_half)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + int b= src1[6*i + 0] + src1[6*i + 3]; + int g= src1[6*i + 1] + src1[6*i + 4]; + int r= src1[6*i + 2] + src1[6*i + 5]; + + dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1); + dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1); + } + assert(src1 == src2); +} + +static inline void RENAME(rgb24ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused) +{ + int i; + for (i=0; i<width; i++) { + int r= src[i*3+0]; + int g= src[i*3+1]; + int b= src[i*3+2]; + + dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); + } +} + +static inline void RENAME(rgb24ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + assert(src1==src2); + for (i=0; i<width; i++) { + int r= src1[3*i + 0]; + int g= src1[3*i + 1]; + int b= src1[3*i + 2]; + + dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT; + dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT; + } +} + +static inline void RENAME(rgb24ToUV_half)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused) +{ + int i; + assert(src1==src2); + for (i=0; i<width; i++) { + int r= src1[6*i + 0] + src1[6*i + 3]; + int g= src1[6*i + 1] + src1[6*i + 4]; + int b= src1[6*i + 2] + src1[6*i + 5]; + + dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1); + dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1); + } +} + + +// bilinear / bicubic scaling +static inline void RENAME(hScale)(int16_t *dst, int dstW, const uint8_t *src, int srcW, int xInc, + const int16_t *filter, const int16_t *filterPos, long filterSize) +{ +#if COMPILE_TEMPLATE_ALTIVEC + hScale_altivec_real(dst, dstW, src, srcW, xInc, filter, filterPos, filterSize); +#else + int i; + for (i=0; i<dstW; i++) { + int j; + int srcPos= filterPos[i]; + int val=0; + //printf("filterPos: %d\n", filterPos[i]); + for (j=0; j<filterSize; j++) { + //printf("filter: %d, src: %d\n", filter[i], src[srcPos + j]); + val += ((int)src[srcPos + j])*filter[filterSize*i + j]; + } + //filter += hFilterSize; + dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ... + //dst[i] = val>>7; + } +#endif /* COMPILE_TEMPLATE_ALTIVEC */ +} + +//FIXME all pal and rgb srcFormats could do this convertion as well +//FIXME all scalers more complex than bilinear could do half of this transform +static void RENAME(chrRangeToJpeg)(uint16_t *dst, int width) +{ + int i; + for (i = 0; i < width; i++) { + dst[i ] = (FFMIN(dst[i ],30775)*4663 - 9289992)>>12; //-264 + dst[i+VOFW] = (FFMIN(dst[i+VOFW],30775)*4663 - 9289992)>>12; //-264 + } +} +static void RENAME(chrRangeFromJpeg)(uint16_t *dst, int width) +{ + int i; + for (i = 0; i < width; i++) { + dst[i ] = (dst[i ]*1799 + 4081085)>>11; //1469 + dst[i+VOFW] = (dst[i+VOFW]*1799 + 4081085)>>11; //1469 + } +} +static void RENAME(lumRangeToJpeg)(uint16_t *dst, int width) +{ + int i; + for (i = 0; i < width; i++) + dst[i] = (FFMIN(dst[i],30189)*19077 - 39057361)>>14; +} +static void RENAME(lumRangeFromJpeg)(uint16_t *dst, int width) +{ + int i; + for (i = 0; i < width; i++) + dst[i] = (dst[i]*14071 + 33561947)>>14; +} + +static inline void RENAME(hyscale_fast)(SwsContext *c, int16_t *dst, + long dstWidth, const uint8_t *src, 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; + dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha; + xpos+=xInc; + } +} + + // *** horizontal scale Y line to temp buffer +static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth, const uint8_t *src, int srcW, int xInc, + const int16_t *hLumFilter, + const int16_t *hLumFilterPos, int hLumFilterSize, + uint8_t *formatConvBuffer, + uint32_t *pal, int isAlpha) +{ + void (*toYV12)(uint8_t *, const uint8_t *, long, uint32_t *) = isAlpha ? c->alpToYV12 : c->lumToYV12; + void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange; + + src += isAlpha ? c->alpSrcOffset : c->lumSrcOffset; + + if (toYV12) { + toYV12(formatConvBuffer, src, srcW, pal); + src= formatConvBuffer; + } + + if (c->hScale16) { + c->hScale16(dst, dstWidth, (uint16_t*)src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize, av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1); + } else if (!c->hyscale_fast) { + c->hScale(dst, dstWidth, src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize); + } else { // fast bilinear upscale / crap downscale + c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc); + } + + if (convertRange) + convertRange(dst, dstWidth); +} + +static inline void RENAME(hcscale_fast)(SwsContext *c, int16_t *dst, + long 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; + dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha); + dst[i+VOFW]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha); + /* slower + dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha; + dst[i+VOFW]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha; + */ + xpos+=xInc; + } +} + +inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long 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) { + c->chrToYV12(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal); + src1= formatConvBuffer; + src2= formatConvBuffer+VOFW; + } + + if (c->hScale16) { + c->hScale16(dst , dstWidth, (uint16_t*)src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize, av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1); + c->hScale16(dst+VOFW, dstWidth, (uint16_t*)src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize, av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1); + } else if (!c->hcscale_fast) { + c->hScale(dst , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); + c->hScale(dst+VOFW, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize); + } else { // fast bilinear upscale / crap downscale + c->hcscale_fast(c, dst, dstWidth, src1, src2, srcW, xInc); + } + + if (c->chrConvertRange) + c->chrConvertRange(dst, dstWidth); +} + +#define DEBUG_SWSCALE_BUFFERS 0 +#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__) + +static int RENAME(swScale)(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 **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); + RENAME(hyscale)(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc, + hLumFilter, hLumFilterPos, hLumFilterSize, + formatConvBuffer, + pal, 0); + if (CONFIG_SWSCALE_ALPHA && alpPixBuf) + RENAME(hyscale)(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) + RENAME(hcscale)(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) || isNBPS(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) || isNBPS(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 RENAME(sws_init_swScale)(SwsContext *c) +{ + enum PixelFormat srcFormat = c->srcFormat; + + c->yuv2nv12X = RENAME(yuv2nv12X ); + c->yuv2yuv1 = RENAME(yuv2yuv1 ); + c->yuv2yuvX = RENAME(yuv2yuvX ); + c->yuv2packed1 = RENAME(yuv2packed1 ); + c->yuv2packed2 = RENAME(yuv2packed2 ); + c->yuv2packedX = RENAME(yuv2packedX ); + + c->hScale = RENAME(hScale ); + + if (c->flags & SWS_FAST_BILINEAR) + { + c->hyscale_fast = RENAME(hyscale_fast); + c->hcscale_fast = RENAME(hcscale_fast); + } + + c->chrToYV12 = NULL; + switch(srcFormat) { + case PIX_FMT_YUYV422 : c->chrToYV12 = RENAME(yuy2ToUV); break; + case PIX_FMT_UYVY422 : c->chrToYV12 = RENAME(uyvyToUV); break; + case PIX_FMT_NV12 : c->chrToYV12 = RENAME(nv12ToUV); break; + case PIX_FMT_NV21 : c->chrToYV12 = RENAME(nv21ToUV); 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_GRAY16BE : + case PIX_FMT_YUV420P9BE: + case PIX_FMT_YUV422P10BE: + case PIX_FMT_YUV420P10BE: + case PIX_FMT_YUV420P16BE: + case PIX_FMT_YUV422P16BE: + case PIX_FMT_YUV444P16BE: c->hScale16= HAVE_BIGENDIAN ? RENAME(hScale16) : RENAME(hScale16X); break; + case PIX_FMT_GRAY16LE : + case PIX_FMT_YUV420P9LE: + case PIX_FMT_YUV422P10LE: + case PIX_FMT_YUV420P10LE: + case PIX_FMT_YUV420P16LE: + case PIX_FMT_YUV422P16LE: + case PIX_FMT_YUV444P16LE: c->hScale16= HAVE_BIGENDIAN ? RENAME(hScale16X) : RENAME(hScale16); 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 = RENAME(bgr24ToUV_half); 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 = RENAME(rgb24ToUV_half); 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 = RENAME(bgr24ToUV); 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 = RENAME(rgb24ToUV); 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_GRAY8A : + c->lumToYV12 = RENAME(yuy2ToY); break; + case PIX_FMT_UYVY422 : + c->lumToYV12 = RENAME(uyvyToY); break; + case PIX_FMT_BGR24 : c->lumToYV12 = RENAME(bgr24ToY); break; + case PIX_FMT_BGR565 : c->lumToYV12 = bgr16ToY; break; + case PIX_FMT_BGR555 : c->lumToYV12 = bgr15ToY; break; + case PIX_FMT_RGB24 : c->lumToYV12 = RENAME(rgb24ToY); 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_GRAY8A : c->alpToYV12 = RENAME(yuy2ToY); break; + case PIX_FMT_PAL8 : c->alpToYV12 = palToA; break; + } + } + + switch (srcFormat) { + case PIX_FMT_GRAY8A : + 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 = RENAME(lumRangeFromJpeg); + c->chrConvertRange = RENAME(chrRangeFromJpeg); + } else { + c->lumConvertRange = RENAME(lumRangeToJpeg); + c->chrConvertRange = RENAME(chrRangeToJpeg); + } + } + + if (!(isGray(srcFormat) || isGray(c->dstFormat) || + srcFormat == PIX_FMT_MONOBLACK || srcFormat == PIX_FMT_MONOWHITE)) + c->needs_hcscale = 1; +} |