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bugfixes

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small speedup for the non x86 stuff

Originally committed as revision 2567 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-10-30 20:30:24 +00:00
parent 51da31f16b
commit 1faf086709
2 changed files with 18 additions and 14 deletions
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16
postproc/swscale.c
View File

@ -33,6 +33,7 @@ Special versions: fast Y 1:1 scaling (no interpolation in y direction)
TODO
more intelligent missalignment avoidance for the horizontal scaler
bicubic scaler
*/
#define ABS(a) ((a) > 0 ? (a) : (-(a)))
@ -912,7 +913,6 @@ static inline void hyscale(uint16_t *dst, int dstWidth, uint8_t *src, int srcWid
unsigned int xpos=0;
// *** horizontal scale Y line to temp buffer
#ifdef ARCH_X86
#ifdef HAVE_MMX2
if(canMMX2BeUsed)
{
@ -1012,7 +1012,7 @@ FUNNY_Y_CODE
for(i=0;i<dstWidth;i++){
register unsigned int xx=xpos>>16;
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst[i]=(src[xx]*(xalpha^127)+src[xx+1]*xalpha);
dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
xpos+=xInc;
}
#endif
@ -1068,8 +1068,6 @@ FUNNYUVCODE
FUNNYUVCODE
FUNNYUVCODE
FUNNYUVCODE
"xorl %%eax, %%eax \n\t" // i
"movl %6, %%esi \n\t" // src
"movl %1, %%edi \n\t" // buf1
@ -1143,6 +1141,10 @@ FUNNYUVCODE
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
dst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
/* slower
dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;
dst[i+2048]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;
*/
xpos+=xInc;
}
#endif
@ -1195,8 +1197,8 @@ canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;
if(canMMX2BeUsed) s_xinc+= 20;
else s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;
if(fullUVIpol && !dstbpp==12) s_xinc2= s_xinc>>1;
else s_xinc2= s_xinc;
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(y==0){
@ -1440,7 +1442,7 @@ else s_xinc2= s_xinc;
#ifdef HAVE_MMX
__asm __volatile(SFENCE:::"memory");
__asm __volatile(EMMS);
__asm __volatile(EMMS:::"memory");
#endif
}

16
postproc/swscale_template.c
View File

@ -33,6 +33,7 @@ Special versions: fast Y 1:1 scaling (no interpolation in y direction)
TODO
more intelligent missalignment avoidance for the horizontal scaler
bicubic scaler
*/
#define ABS(a) ((a) > 0 ? (a) : (-(a)))
@ -912,7 +913,6 @@ static inline void hyscale(uint16_t *dst, int dstWidth, uint8_t *src, int srcWid
unsigned int xpos=0;
// *** horizontal scale Y line to temp buffer
#ifdef ARCH_X86
#ifdef HAVE_MMX2
if(canMMX2BeUsed)
{
@ -1012,7 +1012,7 @@ FUNNY_Y_CODE
for(i=0;i<dstWidth;i++){
register unsigned int xx=xpos>>16;
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst[i]=(src[xx]*(xalpha^127)+src[xx+1]*xalpha);
dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
xpos+=xInc;
}
#endif
@ -1068,8 +1068,6 @@ FUNNYUVCODE
FUNNYUVCODE
FUNNYUVCODE
FUNNYUVCODE
"xorl %%eax, %%eax \n\t" // i
"movl %6, %%esi \n\t" // src
"movl %1, %%edi \n\t" // buf1
@ -1143,6 +1141,10 @@ FUNNYUVCODE
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
dst[i+2048]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
/* slower
dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;
dst[i+2048]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;
*/
xpos+=xInc;
}
#endif
@ -1195,8 +1197,8 @@ canMMX2BeUsed= (s_xinc <= 0x10000 && (dstw&31)==0 && (srcWidth&15)==0) ? 1 : 0;
if(canMMX2BeUsed) s_xinc+= 20;
else s_xinc = ((srcWidth-2)<<16)/(dstw-2) - 20;
if(fullUVIpol && !dstbpp==12) s_xinc2= s_xinc>>1;
else s_xinc2= s_xinc;
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(y==0){
@ -1440,7 +1442,7 @@ else s_xinc2= s_xinc;
#ifdef HAVE_MMX
__asm __volatile(SFENCE:::"memory");
__asm __volatile(EMMS);
__asm __volatile(EMMS:::"memory");
#endif
}