Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

sliced scaleing bugfix

Browse Source 
Originally committed as revision 3216 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
pull/126/head
Michael Niedermayer 23 years ago
parent d1fac6cf52
commit af91b8b3c8
1 changed files with 20 additions and 18 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 38
      postproc/swscale_template.c

38
postproc/swscale_template.c
Unescape View File

@ -1155,7 +1155,7 @@ static inline void RENAME(yuv2rgb1)(uint16_t *buf0, uint16_t *buf1, uint16_t *uv
}
static inline void RENAME(hyscale)(uint16_t *dst, int dstWidth, uint8_t *src, int srcWidth, int xInc)
static inline void RENAME(hyscale)(uint16_t *dst, int dstWidth, uint8_t *src, int srcW, int xInc)
{
// *** horizontal scale Y line to temp buffer
#ifdef ARCH_X86
@ -1208,7 +1208,7 @@ FUNNY_Y_CODE
"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF)
: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
);
for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth-1; i--) dst[i] = src[srcWidth-1]*128;
for(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) dst[i] = src[srcW-1]*128;
}
else
{
@ -1270,7 +1270,7 @@ FUNNY_Y_CODE
}
inline static void RENAME(hcscale)(uint16_t *dst, int dstWidth,
uint8_t *src1, uint8_t *src2, int srcWidth, int xInc)
uint8_t *src1, uint8_t *src2, int srcW, int xInc)
{
#ifdef ARCH_X86
#ifdef HAVE_MMX2
@ -1337,10 +1337,10 @@ FUNNYUVCODE
"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF), "m" (src2)
: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
);
for(i=dstWidth-1; (i*xInc)>>16 >=srcWidth/2-1; i--)
for(i=dstWidth-1; (i*xInc)>>16 >=srcW/2-1; i--)
{
dst[i] = src1[srcWidth/2-1]*128;
dst[i+2048] = src2[srcWidth/2-1]*128;
dst[i] = src1[srcW/2-1]*128;
dst[i+2048] = src2[srcW/2-1]*128;
}
}
else
@ -1413,7 +1413,7 @@ unsigned int s_xinc2;
//FIXME do we need th +-2 stuff?
unsigned int s_xinc= (srcW << 16) / dstW - 2;
unsigned int s_yinc= (srcH << 16) / dstH + 2;
static int lumDstYInSrc; // points to the dst Pixels center in the source (0 is the center of pixel 0,0 in src)
static int dstY;
@ -1427,17 +1427,18 @@ static int old_dstW= -1;
static int old_s_xinc= -1;
#endif
int srcWidth;
int dstUVw;
int i;
if(((dstW + 7)&(~7)) >= dststride) dstW&= ~7;
srcWidth= (dstW*s_xinc + 0x8000)>>16;
dstUVw= fullUVIpol ? dstW : dstW/2;
//printf("%d %d %d %d\n", srcW, srcH, dstW, dstH);
//printf("%d %d %d %d\n", s_xinc, s_yinc, srcSliceY, srcSliceH);
#ifdef HAVE_MMX2
canMMX2BeUsed= (s_xinc <= 0x10000 && (dstW&31)==0 && (srcWidth&15)==0) ? 1 : 0;
canMMX2BeUsed= (s_xinc <= 0x10000 && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
#endif
// match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
@ -1446,14 +1447,14 @@ canMMX2BeUsed= (s_xinc <= 0x10000 && (dstW&31)==0 && (srcWidth&15)==0) ? 1 : 0;
// would be like the vertical one, but that would require some special code for the
// first and last pixel
if(canMMX2BeUsed) s_xinc+= 20;
else s_xinc = ((srcWidth-2)<<16)/(dstW-2) - 20;
else s_xinc = ((srcW-2)<<16)/(dstW-2) - 20;
if(fullUVIpol && !(dstbpp==12)) s_xinc2= s_xinc>>1;
else s_xinc2= s_xinc;
// force calculation of the horizontal interpolation of the first line
if(srcSliceY ==0){
// printf("dstW %d, srcw %d, mmx2 %d\n", dstW, srcWidth, canMMX2BeUsed);
// printf("dstW %d, srcw %d, mmx2 %d\n", dstW, srcW, canMMX2BeUsed);
lastLumSrcY=-99;
lastChrSrcY=-99;
lumDstYInSrc= s_yinc/2 - 0x8000;
@ -1620,9 +1621,9 @@ else s_xinc2= s_xinc;
uint16_t *uvbuf0=pix_buf_uv[ chrSrcY &1]; // top line of the interpolated slice
uint16_t *uvbuf1=pix_buf_uv[(chrSrcY+1)&1]; // bottom line of the interpolated slice
// if(lumSrcY>=srcSliceY + srcSliceH) break; // wrong, skips last lines, but they are dupliactes anyway
if(lumSrcY>=srcSliceY + srcSliceH && srcSliceY + srcSliceH < srcH) break;
if(dstY >= dstH) break;
// printf("lumSrcY:%d, dstY:%d, yalpha:%d\n", lumSrcY, dstY, yalpha*100/0x1000);
if((dstY&1) && dstbpp==12) uvalpha=-1;
@ -1633,6 +1634,7 @@ else s_xinc2= s_xinc;
if(lastLumSrcY!=lumSrcY)
{
unsigned char *src;
// skip if first line has been horiz scaled alleady
if(lastLumSrcY != lumSrcY-1)
{
@ -1640,7 +1642,7 @@ else s_xinc2= s_xinc;
if(lumSrcY-1 < srcSliceY ) src=srcptr[0]+(0 )*stride[0];
else src=srcptr[0]+(lumSrcY-srcSliceY -1)*stride[0];
RENAME(hyscale)(buf0, dstW, src, srcWidth, s_xinc);
RENAME(hyscale)(buf0, dstW, src, srcW, s_xinc);
}
// check if second line is after any available src lines
if(lumSrcY-srcSliceY >= srcSliceH) src=srcptr[0]+(srcSliceH-1 )*stride[0];
@ -1648,7 +1650,7 @@ else s_xinc2= s_xinc;
// the min() is required to avoid reuseing lines which where not available
lastLumSrcY= MIN(lumSrcY, srcSliceY +srcSliceH-1);
RENAME(hyscale)(buf1, dstW, src, srcWidth, s_xinc);
RENAME(hyscale)(buf1, dstW, src, srcW, s_xinc);
}
// printf("%d %d %d %d\n", y, chrSrcY, lastChrSrcY, h);
// *** horizontal scale U and V lines to temp buffer
@ -1667,7 +1669,7 @@ else s_xinc2= s_xinc;
src1= srcptr[1]+(chrSrcY-srcSliceY /2-1)*stride[1];
src2= srcptr[2]+(chrSrcY-srcSliceY /2-1)*stride[2];
}
RENAME(hcscale)(uvbuf0, dstUVw, src1, src2, srcWidth, s_xinc2);
RENAME(hcscale)(uvbuf0, dstUVw, src1, src2, srcW, s_xinc2);
}
// check if second line is after any available src lines
@ -1679,7 +1681,7 @@ else s_xinc2= s_xinc;
src1= srcptr[1]+(chrSrcY-srcSliceY /2)*stride[1];
src2= srcptr[2]+(chrSrcY-srcSliceY /2)*stride[2];
}
RENAME(hcscale)(uvbuf1, dstUVw, src1, src2, srcWidth, s_xinc2);
RENAME(hcscale)(uvbuf1, dstUVw, src1, src2, srcW, s_xinc2);
// the min() is required to avoid reuseing lines which where not available
lastChrSrcY= MIN(chrSrcY, srcSliceY /2+srcSliceH/2-1);

Write Preview
Loading…
Cancel
Save