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x86: hpeldsp: mark _xy2 versions as approximate 

Currently, only the mmx version is bitexact, the others (mmxext and
3dnow) are not, in spite of their naming.

Therefore, make their name more obvious. Also restore a comment that
was removed in 71155d7b.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet 2014-05-22 17:48:17 +00:00 committed by Michael Niedermayer
parent f8de35ebc4
commit 17ac998055
2 changed files with 15 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libavcodec/x86/hpeldsp.asm
View File

@ -451,8 +451,10 @@ AVG_PIXELS8_Y2
; void ff_avg_pixels8_xy2(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int h)
%macro AVG_PIXELS8_XY2 0
cglobal avg_pixels8_xy2, 4,5
; Note this is not correctly rounded, and is therefore used for
; not-bitexact output
%macro AVG_APPROX_PIXELS8_XY2 0
cglobal avg_approx_pixels8_xy2, 4,5
mova m6, [pb_1]
lea r4, [r2*2]
mova m0, [r1]
@ -489,6 +491,6 @@ cglobal avg_pixels8_xy2, 4,5
%endmacro
INIT_MMX mmxext
AVG_PIXELS8_XY2
AVG_APPROX_PIXELS8_XY2
INIT_MMX 3dnow
AVG_PIXELS8_XY2
AVG_APPROX_PIXELS8_XY2

18
libavcodec/x86/hpeldsp_init.c
View File

@ -74,10 +74,10 @@ void ff_avg_pixels8_y2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_y2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_pixels8_xy2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_approx_pixels8_xy2_mmxext(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
void ff_avg_approx_pixels8_xy2_3dnow(uint8_t *block, const uint8_t *pixels,
ptrdiff_t line_size, int h);
#define avg_pixels8_mmx ff_avg_pixels8_mmx
#define avg_pixels8_x2_mmx ff_avg_pixels8_x2_mmx
@ -156,7 +156,7 @@ CALL_2X_PIXELS_EXPORT(ff_put_pixels16_xy2_mmx, ff_put_pixels8_xy2_mmx, 8)
CALL_2X_PIXELS(avg_pixels16 ## CPUEXT, ff_avg_pixels8 ## CPUEXT, 8) \
CALL_2X_PIXELS(avg_pixels16_x2 ## CPUEXT, ff_avg_pixels8_x2 ## CPUEXT, 8) \
CALL_2X_PIXELS(avg_pixels16_y2 ## CPUEXT, ff_avg_pixels8_y2 ## CPUEXT, 8) \
CALL_2X_PIXELS(avg_pixels16_xy2 ## CPUEXT, ff_avg_pixels8_xy2 ## CPUEXT, 8)
CALL_2X_PIXELS(avg_approx_pixels16_xy2## CPUEXT, ff_avg_approx_pixels8_xy2## CPUEXT, 8)
HPELDSP_AVG_PIXELS16(_3dnow)
HPELDSP_AVG_PIXELS16(_mmxext)
@ -223,8 +223,8 @@ static void hpeldsp_init_mmxext(HpelDSPContext *c, int flags, int cpu_flags)
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_mmxext;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_mmxext;
c->avg_pixels_tab[0][3] = avg_pixels16_xy2_mmxext;
c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_mmxext;
c->avg_pixels_tab[0][3] = avg_approx_pixels16_xy2_mmxext;
c->avg_pixels_tab[1][3] = ff_avg_approx_pixels8_xy2_mmxext;
}
if (flags & CODEC_FLAG_BITEXACT && CONFIG_VP3_DECODER) {
@ -257,8 +257,8 @@ static void hpeldsp_init_3dnow(HpelDSPContext *c, int flags, int cpu_flags)
c->put_no_rnd_pixels_tab[1][1] = ff_put_no_rnd_pixels8_x2_3dnow;
c->put_no_rnd_pixels_tab[1][2] = ff_put_no_rnd_pixels8_y2_3dnow;
c->avg_pixels_tab[0][3] = avg_pixels16_xy2_3dnow;
c->avg_pixels_tab[1][3] = ff_avg_pixels8_xy2_3dnow;
c->avg_pixels_tab[0][3] = avg_approx_pixels16_xy2_3dnow;
c->avg_pixels_tab[1][3] = ff_avg_approx_pixels8_xy2_3dnow;
}
if (flags & CODEC_FLAG_BITEXACT && CONFIG_VP3_DECODER) {