generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

* reenabled original xy2 put routine - rounding error is really bad with

Browse Source 
the new code
* added PAVGP macros for parallel processing to safe few more cycles on
  celerons

Originally committed as revision 625 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zdenek Kabelac 2002-05-29 19:57:21 +00:00
parent 91abb473fb
commit 6aa6ea8e11
1 changed files with 33 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
libavcodec/i386/dsputil_mmx.c
View File

@ -107,17 +107,47 @@ static const uint64_t mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002U
"psrlq $1, " #regb " \n\t"\ "psrlq $1, " #regb " \n\t"\
"psubb " #regb ", " #regr " \n\t" "psubb " #regb ", " #regr " \n\t"
#define PAVGBP_MMX_NO_RND(rega, regb, regr, regc, regd, regp) \
"movq " #rega ", " #regr " \n\t"\
"movq " #regc ", " #regp " \n\t"\
"pand " #regb ", " #regr " \n\t"\
"pand " #regd ", " #regp " \n\t"\
"pxor " #rega ", " #regb " \n\t"\
"pxor " #regc ", " #regd " \n\t"\
"pand %%mm7, " #regb " \n\t"\
"pand %%mm7, " #regd " \n\t"\
"psrlq $1, " #regb " \n\t"\
"psrlq $1, " #regd " \n\t"\
"paddb " #regb ", " #regr " \n\t"\
"paddb " #regd ", " #regp " \n\t"
#define PAVGBP_MMX(rega, regb, regr, regc, regd, regp) \
"movq " #rega ", " #regr " \n\t"\
"movq " #regc ", " #regp " \n\t"\
"por " #regb ", " #regr " \n\t"\
"por " #regd ", " #regp " \n\t"\
"pxor " #rega ", " #regb " \n\t"\
"pxor " #regc ", " #regd " \n\t"\
"pand %%mm7, " #regb " \n\t"\
"pand %%mm7, " #regd " \n\t"\
"psrlq $1, " #regd " \n\t"\
"psrlq $1, " #regb " \n\t"\
"psubb " #regb ", " #regr " \n\t"\
"psubb " #regd ", " #regp " \n\t"
/***********************************/ /***********************************/
/* MMX no rounding */ /* MMX no rounding */
#define DEF(x, y) x ## _no_rnd_ ## y ##_mmx #define DEF(x, y) x ## _no_rnd_ ## y ##_mmx
#define PAVGB(a, b) PAVGB_MMX_NO_RND(a, b, %%mm6) #define PAVGB(a, b) PAVGB_MMX_NO_RND(a, b, %%mm6)
#define PAVGBR(a, b, c) PAVGB_MMX_NO_RND(a, b, c) #define PAVGBR(a, b, c) PAVGB_MMX_NO_RND(a, b, c)
#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX_NO_RND(a, b, c, d, e, f)
#include "dsputil_mmx_rnd.h" #include "dsputil_mmx_rnd.h"
#undef DEF #undef DEF
#undef PAVGB #undef PAVGB
#undef PAVGBR #undef PAVGBR
#undef PAVGBP
/***********************************/ /***********************************/
/* MMX rounding */ /* MMX rounding */
@ -125,11 +155,13 @@ static const uint64_t mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002U
#define PAVGB(a, b) PAVGB_MMX(a, b, %%mm6) #define PAVGB(a, b) PAVGB_MMX(a, b, %%mm6)
#define PAVGBR(a, b, c) PAVGB_MMX(a, b, c) #define PAVGBR(a, b, c) PAVGB_MMX(a, b, c)
#define PAVGBP(a, b, c, d, e, f) PAVGBP_MMX(a, b, c, d, e, f)
#include "dsputil_mmx_rnd.h" #include "dsputil_mmx_rnd.h"
#undef DEF #undef DEF
#undef PAVGB #undef PAVGB
#undef PAVGBR #undef PAVGBR
#undef PAVGBP
/***********************************/ /***********************************/
/* 3Dnow specific */ /* 3Dnow specific */
@ -339,7 +371,7 @@ static void put_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int
); );
} }
#if 0 #if 1
static void put_pixels_xy2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h) static void put_pixels_xy2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{ {
UINT8 *p; UINT8 *p;