| /* |
| * 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 |
| */ |
| |
| static inline void yuv2yuvX_c(SwsContext *c, const int16_t *lumFilter, |
| const int16_t **lumSrc, int lumFilterSize, |
| const int16_t *chrFilter, const int16_t **chrUSrc, |
| const int16_t **chrVSrc, |
| int chrFilterSize, const int16_t **alpSrc, |
| uint8_t *dest, uint8_t *uDest, uint8_t *vDest, |
| uint8_t *aDest, int dstW, int chrDstW, const uint8_t *lumDither, const uint8_t *chrDither) |
| { |
| yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize, |
| chrFilter, chrUSrc, chrVSrc, chrFilterSize, |
| alpSrc, dest, uDest, vDest, aDest, dstW, chrDstW, lumDither, chrDither); |
| } |
| |
| static inline void yuv2nv12X_c(SwsContext *c, const int16_t *lumFilter, |
| const int16_t **lumSrc, int lumFilterSize, |
| const int16_t *chrFilter, const int16_t **chrUSrc, |
| const int16_t **chrVSrc, |
| int chrFilterSize, uint8_t *dest, uint8_t *uDest, |
| int dstW, int chrDstW, enum PixelFormat dstFormat, const uint8_t *dither, const uint8_t *chrDither) |
| { |
| yuv2nv12XinC(lumFilter, lumSrc, lumFilterSize, |
| chrFilter, chrUSrc, chrVSrc, chrFilterSize, |
| dest, uDest, dstW, chrDstW, dstFormat, dither, chrDither); |
| } |
| |
| static inline void yuv2yuv1_c(SwsContext *c, const int16_t *lumSrc, |
| const int16_t *chrUSrc, const int16_t *chrVSrc, |
| const int16_t *alpSrc, |
| uint8_t *dest, uint8_t *uDest, uint8_t *vDest, |
| uint8_t *aDest, int dstW, int chrDstW, const uint8_t *lumDither, const uint8_t *chrDither) |
| { |
| int i; |
| |
| for (i=0; i<dstW; i++) { |
| int val= (lumSrc[i]+lumDither[i&7])>>7; |
| dest[i]= av_clip_uint8(val); |
| } |
| |
| if (uDest) |
| for (i=0; i<chrDstW; i++) { |
| int u=(chrUSrc[i]+chrDither[i&7])>>7; |
| int v=(chrVSrc[i]+chrDither[(i+3)&7])>>7; |
| uDest[i]= av_clip_uint8(u); |
| vDest[i]= av_clip_uint8(v); |
| } |
| |
| if (CONFIG_SWSCALE_ALPHA && aDest) |
| for (i=0; i<dstW; i++) { |
| int val= (alpSrc[i]+lumDither[i&7])>>7; |
| aDest[i]= av_clip_uint8(val); |
| } |
| } |
| |
| |
| /** |
| * vertical scale YV12 to RGB |
| */ |
| static inline void yuv2packedX_c(SwsContext *c, const int16_t *lumFilter, |
| const int16_t **lumSrc, int lumFilterSize, |
| const int16_t *chrFilter, const int16_t **chrUSrc, |
| const int16_t **chrVSrc, |
| int chrFilterSize, const int16_t **alpSrc, |
| uint8_t *dest, int dstW, int dstY) |
| { |
| yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize, |
| chrFilter, chrUSrc, chrVSrc, chrFilterSize, |
| alpSrc, dest, dstW, dstY); |
| } |
| |
| /** |
| * vertical bilinear scale YV12 to RGB |
| */ |
| static inline void yuv2packed2_c(SwsContext *c, const uint16_t *buf0, |
| const uint16_t *buf1, const uint16_t *ubuf0, |
| const uint16_t *ubuf1, const uint16_t *vbuf0, |
| const uint16_t *vbuf1, 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 yuv2packed1_c(SwsContext *c, const uint16_t *buf0, |
| const uint16_t *ubuf0, const uint16_t *ubuf1, |
| const uint16_t *vbuf0, const uint16_t *vbuf1, |
| 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 (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 yuy2ToY_c(uint8_t *dst, const uint8_t *src, int width, |
| uint32_t *unused) |
| { |
| int i; |
| for (i=0; i<width; i++) |
| dst[i]= src[2*i]; |
| } |
| |
| static inline void yuy2ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, |
| const uint8_t *src2, int 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 LEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, |
| const uint8_t *src2, int width, uint32_t *unused) |
| { |
| int i; |
| // FIXME I don't think this code is right for YUV444/422, since then h is not subsampled so |
| // we need to skip each second pixel. Same for BEToUV. |
| 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 uyvyToY_c(uint8_t *dst, const uint8_t *src, int width, |
| uint32_t *unused) |
| { |
| int i; |
| for (i=0; i<width; i++) |
| dst[i]= src[2*i+1]; |
| } |
| |
| static inline void uyvyToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, |
| const uint8_t *src2, int 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 BEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, |
| const uint8_t *src2, int 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 nvXXtoUV_c(uint8_t *dst1, uint8_t *dst2, |
| const uint8_t *src, int width) |
| { |
| int i; |
| for (i = 0; i < width; i++) { |
| dst1[i] = src[2*i+0]; |
| dst2[i] = src[2*i+1]; |
| } |
| } |
| |
| // FIXME Maybe dither instead. |
| #ifndef YUV_NBPS |
| #define YUV_NBPS(depth, endianness, rfunc) \ |
| static inline void endianness ## depth ## ToUV_c(uint8_t *dstU, uint8_t *dstV, \ |
| const uint16_t *srcU, const uint16_t *srcV, \ |
| int width, uint32_t *unused) \ |
| { \ |
| int i; \ |
| for (i = 0; i < width; i++) { \ |
| dstU[i] = rfunc(&srcU[i])>>(depth-8); \ |
| dstV[i] = rfunc(&srcV[i])>>(depth-8); \ |
| } \ |
| } \ |
| \ |
| static inline void endianness ## depth ## ToY_c(uint8_t *dstY, const uint16_t *srcY, int width, uint32_t *unused) \ |
| { \ |
| int i; \ |
| for (i = 0; i < width; i++) \ |
| dstY[i] = rfunc(&srcY[i])>>(depth-8); \ |
| } \ |
| |
| YUV_NBPS( 9, LE, AV_RL16) |
| YUV_NBPS( 9, BE, AV_RB16) |
| YUV_NBPS(10, LE, AV_RL16) |
| YUV_NBPS(10, BE, AV_RB16) |
| #endif // YUV_NBPS |
| |
| static inline void nv12ToUV_c(uint8_t *dstU, uint8_t *dstV, |
| const uint8_t *src1, const uint8_t *src2, |
| int width, uint32_t *unused) |
| { |
| nvXXtoUV_c(dstU, dstV, src1, width); |
| } |
| |
| static inline void nv21ToUV_c(uint8_t *dstU, uint8_t *dstV, |
| const uint8_t *src1, const uint8_t *src2, |
| int width, uint32_t *unused) |
| { |
| nvXXtoUV_c(dstV, dstU, src1, width); |
| } |
| |
| // bilinear / bicubic scaling |
| static inline void hScale_c(int16_t *dst, int dstW, const uint8_t *src, |
| int srcW, int xInc, |
| const int16_t *filter, const int16_t *filterPos, |
| int filterSize) |
| { |
| int i; |
| for (i=0; i<dstW; i++) { |
| int j; |
| int srcPos= filterPos[i]; |
| int val=0; |
| for (j=0; j<filterSize; 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; |
| } |
| } |
| |
| |
| #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 uint8_t *lumDither= isNBPS(c->srcFormat) || is16BPS(c->srcFormat) ? dithers[7][dstY &7] : flat64; |
| const uint8_t *chrDither= isNBPS(c->srcFormat) || is16BPS(c->srcFormat) ? dithers[7][chrDstY&7] : flat64; |
| |
| 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, lumDither, chrDither); |
| } 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, 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, lumDither, chrDither); |
| } else { //General YV12 |
| c->yuv2yuvX(c, |
| vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize, |
| vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, |
| chrVSrcPtr, vChrFilterSize, |
| alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW, lumDither, chrDither); |
| } |
| } 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, lumDither, chrDither); |
| } 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, 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, lumDither, chrDither); |
| } |
| } 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_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 ? hScale16_c : hScale16X_c; 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 ? hScale16X_c : hScale16_c; break; |
| } |
| if (c->chrSrcHSubSample) { |
| switch(srcFormat) { |
| case PIX_FMT_RGB48BE: c->chrToYV12 = rgb48BEToUV_half; break; |
| case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48LEToUV_half; break; |
| case PIX_FMT_BGR48BE: c->chrToYV12 = bgr48BEToUV_half; break; |
| case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48LEToUV_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: c->chrToYV12 = rgb48BEToUV; break; |
| case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48LEToUV; break; |
| case PIX_FMT_BGR48BE: c->chrToYV12 = bgr48BEToUV; break; |
| case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48LEToUV; 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_GRAY8A : |
| c->lumToYV12 = yuy2ToY_c; break; |
| case PIX_FMT_UYVY422 : |
| 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: c->lumToYV12 = rgb48BEToY; break; |
| case PIX_FMT_RGB48LE: c->lumToYV12 = rgb48LEToY; break; |
| case PIX_FMT_BGR48BE: c->lumToYV12 = bgr48BEToY; break; |
| case PIX_FMT_BGR48LE: c->lumToYV12 = bgr48LEToY; 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 = yuy2ToY_c; break; |
| case PIX_FMT_PAL8 : c->alpToYV12 = palToA; break; |
| } |
| } |
| |
| if(isAnyRGB(c->srcFormat) || c->srcFormat == PIX_FMT_PAL8) |
| c->hScale16= hScale16_c; |
| |
| switch (srcFormat) { |
| case PIX_FMT_GRAY8A : |
| c->alpSrcOffset = 1; |
| break; |
| case PIX_FMT_RGB32 : |
| case PIX_FMT_BGR32 : |
| c->alpSrcOffset = 3; |
| 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; |
| } |
