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fixing end overwrite bugs (some at least)

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this needs testing, untested parts should be reversed before release
i tested 24->32, 15->16, bgr24->rgb, bgr32->rgb (retesting them isnt a bad idea either ...)

Originally committed as revision 6097 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-05-15 02:27:41 +00:00
parent 90da4d764c
commit 218ad65d4d
1 changed files with 16 additions and 18 deletions
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34
postproc/rgb2rgb_template.c
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@ -56,14 +56,13 @@ static inline void RENAME(rgb24to32)(const uint8_t *src,uint8_t *dst,unsigned sr
const uint8_t *s = src;
const uint8_t *end;
#ifdef HAVE_MMX
uint8_t *mm_end;
const uint8_t *mm_end;
#endif
end = s + src_size;
#ifdef HAVE_MMX
__asm __volatile(PREFETCH" %0"::"m"(*s):"memory");
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
mm_end = end - 23;
__asm __volatile("movq %0, %%mm7"::"m"(mask32):"memory");
if(mm_end == end) mm_end -= MMREG_SIZE*4;
while(s < mm_end)
{
__asm __volatile(
@ -108,12 +107,12 @@ static inline void RENAME(rgb32to24)(const uint8_t *src,uint8_t *dst,unsigned sr
const uint8_t *s = src;
const uint8_t *end;
#ifdef HAVE_MMX
uint8_t *mm_end;
const uint8_t *mm_end;
#endif
end = s + src_size;
#ifdef HAVE_MMX
__asm __volatile(PREFETCH" %0"::"m"(*s):"memory");
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*4))*(MMREG_SIZE*4));
mm_end = end - 31;
while(s < mm_end)
{
__asm __volatile(
@ -188,9 +187,9 @@ static inline void RENAME(rgb32to24)(const uint8_t *src,uint8_t *dst,unsigned sr
static inline void RENAME(rgb15to16)(const uint8_t *src,uint8_t *dst,unsigned src_size)
{
#ifdef HAVE_MMX
register const char* s=src+src_size;
register char* d=dst+src_size;
register int offs=-src_size;
register int offs=15-src_size;
register const char* s=src-offs;
register char* d=dst-offs;
__asm __volatile(PREFETCH" %0"::"m"(*(s+offs)));
__asm __volatile(
"movq %0, %%mm4\n\t"
@ -252,7 +251,7 @@ static inline void RENAME(rgb32to16)(const uint8_t *src, uint8_t *dst, unsigned
const uint8_t *end,*mm_end;
uint16_t *d = (uint16_t *)dst;
end = s + src_size;
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
mm_end = end - 15;
__asm __volatile(PREFETCH" %0"::"m"(*src):"memory");
__asm __volatile(
"movq %0, %%mm7\n\t"
@ -298,6 +297,7 @@ static inline void RENAME(rgb32to16)(const uint8_t *src, uint8_t *dst, unsigned
const int b= *s++;
const int g= *s++;
const int r= *s++;
s++;
*d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
}
__asm __volatile(SFENCE:::"memory");
@ -323,7 +323,7 @@ static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, unsigned
const uint8_t *end,*mm_end;
uint16_t *d = (uint16_t *)dst;
end = s + src_size;
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
mm_end = end - 15;
__asm __volatile(PREFETCH" %0"::"m"(*src):"memory");
__asm __volatile(
"movq %0, %%mm7\n\t"
@ -369,6 +369,7 @@ static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, unsigned
const int b= *s++;
const int g= *s++;
const int r= *s++;
s++;
*d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
}
__asm __volatile(SFENCE:::"memory");
@ -394,13 +395,12 @@ static inline void RENAME(rgb24to16)(const uint8_t *src, uint8_t *dst, unsigned
const uint8_t *end,*mm_end;
uint16_t *d = (uint16_t *)dst;
end = s + src_size;
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
mm_end = end - 11;
__asm __volatile(PREFETCH" %0"::"m"(*src):"memory");
__asm __volatile(
"movq %0, %%mm7\n\t"
"movq %1, %%mm6\n\t"
::"m"(red_16mask),"m"(green_16mask));
if(mm_end == end) mm_end -= MMREG_SIZE*2;
while(s < mm_end)
{
__asm __volatile(
@ -466,13 +466,12 @@ static inline void RENAME(rgb24to15)(const uint8_t *src, uint8_t *dst, unsigned
const uint8_t *end,*mm_end;
uint16_t *d = (uint16_t *)dst;
end = s + src_size;
mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2));
mm_end = end -11;
__asm __volatile(PREFETCH" %0"::"m"(*src):"memory");
__asm __volatile(
"movq %0, %%mm7\n\t"
"movq %1, %%mm6\n\t"
::"m"(red_15mask),"m"(green_15mask));
if(mm_end == end) mm_end -= MMREG_SIZE*2;
while(s < mm_end)
{
__asm __volatile(
@ -550,7 +549,7 @@ static inline void RENAME(rgb32tobgr32)(const uint8_t *src, uint8_t *dst, unsign
"por %%mm0, %%mm2 \n\t"
"por %%mm1, %%mm2 \n\t"
MOVNTQ" %%mm2, (%1, %%eax) \n\t"
"addl $2, %%eax \n\t"
"addl $8, %%eax \n\t"
"cmpl %2, %%eax \n\t"
" jb 1b \n\t"
:: "r" (src), "r"(dst), "r" (src_size)
@ -620,11 +619,10 @@ static inline void RENAME(rgb24tobgr24)(const uint8_t *src, uint8_t *dst, unsign
__asm __volatile(SFENCE:::"memory");
__asm __volatile(EMMS:::"memory");
if(!mmx_size) return; //finihsed, was multiple of 8
if(mmx_size==23) return; //finihsed, was multiple of 8
src+= src_size;
dst+= src_size;
src_size= 24-mmx_size;
src_size= 23 - mmx_size;
src-= src_size;
dst-= src_size;
#endif