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Code Issues Releases Activity

added emms_c() macro which should can used in c code in both mmx/non mmx cases

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Originally committed as revision 12 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2001-07-24 20:42:03 +00:00
parent 7d650cb540
commit fb16b7e7b3
3 changed files with 10 additions and 9 deletions
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4
libavcodec/dsputil.c
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@ -21,10 +21,6 @@
#include "avcodec.h"
#include "dsputil.h"
#ifdef HAVE_MMX
int mm_flags; /* multimedia extension flags */
#endif
void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);

10
libavcodec/dsputil.h
View File

@ -75,7 +75,13 @@ int mm_support(void);
static inline void emms(void)
{
asm volatile ("emms;");
__asm __volatile ("emms;":::"memory");
}
#define emms_c() \
{\
if (mm_flags & MM_MMX)\
emms();\
}
#define __align8 __attribute__ ((aligned (8)))
@ -84,6 +90,8 @@ void dsputil_init_mmx(void);
#else
#define emms_c()
#define __align8
#endif

5
libavcodec/motion_est.c
View File

@ -434,10 +434,7 @@ int estimate_motion(MpegEncContext * s,
dmin = phods_motion_search(s, &mx, &my, range / 2, xmin, ymin, xmax, ymax);
break;
}
#ifdef HAVE_MMX
if (mm_flags & MM_MMX)
emms();
#endif
emms_c();
/* intra / predictive decision */
xx = mb_x * 16;