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yv12 to yv12 scaler
someone who knows a bit about vo_odivx could add support for it ... Originally committed as revision 2520 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer
parent
494a6294bf
commit
3885847036
@ -440,6 +440,31 @@ static int canMMX2BeUsed=0;
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" jb 1b \n\t"
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static inline void yuv2yuv(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uint16_t *uvbuf1,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstw, int yalpha, int uvalpha)
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{
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int yalpha1=yalpha^4095;
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int uvalpha1=uvalpha^4095;
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int i;
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for(i=0;i<dstw;i++)
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{
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((uint8_t*)dest)[0] = (buf0[i]*yalpha1+buf1[i]*yalpha)>>19;
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dest++;
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}
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if(uvalpha != -1)
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{
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for(i=0; i<dstw/2; i++)
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{
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((uint8_t*)uDest)[0] = (uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19;
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((uint8_t*)vDest)[0] = (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;
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uDest++;
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vDest++;
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}
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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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@ -1126,13 +1151,13 @@ FUNNYUVCODE
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}
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// *** bilinear scaling and yuv->rgb conversion of yv12 slices:
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// *** bilinear scaling and yuv->rgb or yuv->yuv conversion of yv12 slices:
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// *** Note: it's called multiple times while decoding a frame, first time y==0
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// *** Designed to upscale, but may work for downscale too.
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// s_xinc = (src_width << 16) / dst_width
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// s_yinc = (src_height << 16) / dst_height
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void SwScale_YV12slice_brg24(unsigned char* srcptr[],int stride[], int y, int h,
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unsigned char* dstptr, int dststride, int dstw, int dstbpp,
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void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,
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uint8_t* dstptr[], int dststride, int dstw, int dstbpp,
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unsigned int s_xinc,unsigned int s_yinc){
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// scaling factors:
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@ -1172,8 +1197,8 @@ canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;
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if(canMMX2BeUsed) s_xinc+= 20;
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else s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;
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if(fullUVIpol) s_xinc2= s_xinc>>1;
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else s_xinc2= s_xinc;
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if(fullUVIpol && !dstbpp==12) s_xinc2= s_xinc>>1;
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else s_xinc2= s_xinc;
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// force calculation of the horizontal interpolation of the first line
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if(y==0){
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@ -1318,10 +1343,14 @@ else s_xinc2= s_xinc;
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} // reset counters
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while(1){
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unsigned char *dest=dstptr+dststride*s_ypos;
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unsigned char *dest =dstptr[0]+dststride*s_ypos;
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unsigned char *uDest=dstptr[1]+(dststride>>1)*(s_ypos>>1);
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unsigned char *vDest=dstptr[2]+(dststride>>1)*(s_ypos>>1);
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int y0=(s_srcypos + 0xFFFF)>>16; // first luminance source line number below the dst line
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// points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)
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int srcuvpos= s_srcypos + s_yinc/2 - 0x8000;
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int srcuvpos= dstbpp==12 ? s_srcypos + s_yinc/2 - 0x8000 :
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s_srcypos - 0x8000;
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int y1=(srcuvpos + 0x1FFFF)>>17; // first chrominance source line number below the dst line
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int yalpha=((s_srcypos-1)&0xFFFF)>>4;
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int uvalpha=((srcuvpos-1)&0x1FFFF)>>5;
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@ -1333,18 +1362,7 @@ else s_xinc2= s_xinc;
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if(y0>=y+h) break; // FIXME wrong, skips last lines, but they are dupliactes anyway
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// if this is after the last line than use only the last src line
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/* if(y0>=y+h)
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{
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buf1= buf0;
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s_last_ypos=y0;
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}
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if(y1>=(y+h)/2)
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{
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uvbuf1= uvbuf0;
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s_last_y1pos=y1;
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}
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*/
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if((y0&1) && dstbpp==12) uvalpha=-1; // there is no alpha if there is no line
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s_ypos++; s_srcypos+=s_yinc;
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@ -1404,8 +1422,9 @@ else s_xinc2= s_xinc;
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s_last_y1pos= MIN(y1, y/2+h/2-1);
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}
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if(ABS(s_yinc - 0x10000) < 10)
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if(dstbpp==12) //YV12
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yuv2yuv(buf0, buf1, uvbuf0, uvbuf1, dest, uDest, vDest, dstw, yalpha, uvalpha);
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else if(ABS(s_yinc - 0x10000) < 10)
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yuv2rgb1(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);
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else
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yuv2rgbX(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);
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@ -1,12 +1,13 @@
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// *** bilinear scaling and yuv->rgb conversion of yv12 slices:
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// *** bilinear scaling and yuv->rgb & yuv->yuv conversion of yv12 slices:
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// *** Note: it's called multiple times while decoding a frame, first time y==0
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// *** Designed to upscale, but may work for downscale too.
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// s_xinc = (src_width << 8) / dst_width
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// s_yinc = (src_height << 16) / dst_height
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void SwScale_YV12slice_brg24(unsigned char* srcptr[],int stride[], int y, int h,
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unsigned char* dstptr, int dststride, int dstw, int dstbpp,
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unsigned int s_xinc,unsigned int s_yinc);
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// dstbpp == 12 -> yv12 output
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void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,
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uint8_t* dstptr[], int dststride, int dstw, int dstbpp,
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unsigned int s_xinc,unsigned int s_yinc);
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// generating tables
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void SwScale_Init();
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@ -440,6 +440,31 @@ static int canMMX2BeUsed=0;
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" jb 1b \n\t"
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static inline void yuv2yuv(uint16_t *buf0, uint16_t *buf1, uint16_t *uvbuf0, uint16_t *uvbuf1,
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uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstw, int yalpha, int uvalpha)
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{
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int yalpha1=yalpha^4095;
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int uvalpha1=uvalpha^4095;
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int i;
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for(i=0;i<dstw;i++)
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{
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((uint8_t*)dest)[0] = (buf0[i]*yalpha1+buf1[i]*yalpha)>>19;
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dest++;
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}
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if(uvalpha != -1)
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{
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for(i=0; i<dstw/2; i++)
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{
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((uint8_t*)uDest)[0] = (uvbuf0[i]*uvalpha1+uvbuf1[i]*uvalpha)>>19;
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((uint8_t*)vDest)[0] = (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;
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uDest++;
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vDest++;
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}
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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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@ -1126,13 +1151,13 @@ FUNNYUVCODE
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}
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// *** bilinear scaling and yuv->rgb conversion of yv12 slices:
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// *** bilinear scaling and yuv->rgb or yuv->yuv conversion of yv12 slices:
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// *** Note: it's called multiple times while decoding a frame, first time y==0
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// *** Designed to upscale, but may work for downscale too.
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// s_xinc = (src_width << 16) / dst_width
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// s_yinc = (src_height << 16) / dst_height
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void SwScale_YV12slice_brg24(unsigned char* srcptr[],int stride[], int y, int h,
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unsigned char* dstptr, int dststride, int dstw, int dstbpp,
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void SwScale_YV12slice(unsigned char* srcptr[],int stride[], int y, int h,
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uint8_t* dstptr[], int dststride, int dstw, int dstbpp,
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unsigned int s_xinc,unsigned int s_yinc){
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// scaling factors:
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@ -1172,8 +1197,8 @@ canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;
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if(canMMX2BeUsed) s_xinc+= 20;
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else s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;
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if(fullUVIpol) s_xinc2= s_xinc>>1;
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else s_xinc2= s_xinc;
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if(fullUVIpol && !dstbpp==12) s_xinc2= s_xinc>>1;
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else s_xinc2= s_xinc;
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// force calculation of the horizontal interpolation of the first line
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if(y==0){
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@ -1318,10 +1343,14 @@ else s_xinc2= s_xinc;
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} // reset counters
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while(1){
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unsigned char *dest=dstptr+dststride*s_ypos;
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unsigned char *dest =dstptr[0]+dststride*s_ypos;
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unsigned char *uDest=dstptr[1]+(dststride>>1)*(s_ypos>>1);
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unsigned char *vDest=dstptr[2]+(dststride>>1)*(s_ypos>>1);
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int y0=(s_srcypos + 0xFFFF)>>16; // first luminance source line number below the dst line
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// points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)
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int srcuvpos= s_srcypos + s_yinc/2 - 0x8000;
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int srcuvpos= dstbpp==12 ? s_srcypos + s_yinc/2 - 0x8000 :
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s_srcypos - 0x8000;
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int y1=(srcuvpos + 0x1FFFF)>>17; // first chrominance source line number below the dst line
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int yalpha=((s_srcypos-1)&0xFFFF)>>4;
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int uvalpha=((srcuvpos-1)&0x1FFFF)>>5;
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@ -1333,18 +1362,7 @@ else s_xinc2= s_xinc;
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if(y0>=y+h) break; // FIXME wrong, skips last lines, but they are dupliactes anyway
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// if this is after the last line than use only the last src line
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/* if(y0>=y+h)
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{
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buf1= buf0;
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s_last_ypos=y0;
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}
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if(y1>=(y+h)/2)
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{
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uvbuf1= uvbuf0;
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s_last_y1pos=y1;
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}
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*/
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if((y0&1) && dstbpp==12) uvalpha=-1; // there is no alpha if there is no line
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s_ypos++; s_srcypos+=s_yinc;
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@ -1404,8 +1422,9 @@ else s_xinc2= s_xinc;
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s_last_y1pos= MIN(y1, y/2+h/2-1);
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}
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if(ABS(s_yinc - 0x10000) < 10)
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if(dstbpp==12) //YV12
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yuv2yuv(buf0, buf1, uvbuf0, uvbuf1, dest, uDest, vDest, dstw, yalpha, uvalpha);
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else if(ABS(s_yinc - 0x10000) < 10)
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yuv2rgb1(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);
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else
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yuv2rgbX(buf0, buf1, uvbuf0, uvbuf1, dest, dstw, yalpha, uvalpha, dstbpp);
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