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SVN revision: 8088
This commit is contained in:
Carsten Haitzler 2003-12-10 06:55:18 +00:00
parent 02cfd3ee28
commit 2cdf81f2b7
1 changed files with 13 additions and 12 deletions
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25
legacy/evas/src/lib/engines/common/evas_convert_yuv.c
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@ -107,6 +107,12 @@ evas_common_convert_yuv_420p_601_rgba(DATA8 **src, DATA8 *dst, int w, int h)
/* from mmx I think :( It might be possible to use SSE and SSE2 here, but */
/* I haven't tried yet. Let's see. */
/* NB: XviD has almost the same code in it's assembly YV12->RGB code. same */
/* algorithm, same constants, same all over actually, except it actually */
/* does a few extra memory accesses that this one doesn't, so in theory */
/* this code should be faster. In the end it's all just an mmx version of */
/* the reference implimentation done with fixed point math */
static void
_evas_yv12torgb_mmx(unsigned char **yuv, unsigned char *rgb, int w, int h)
{
@ -126,21 +132,20 @@ _evas_yv12torgb_mmx(unsigned char **yuv, unsigned char *rgb, int w, int h)
vp = yuv[h + (h / 2) + (yy / 2)];
for (xx = 0; xx < (w - 7); xx += 8)
{
movd_m2r(*up, mm3);
movd_m2r(*vp, mm2);
movq_m2r(*yp1, mm0);
pxor_r2r(mm7, mm7);
punpcklbw_r2r(mm7, mm2);
punpcklbw_r2r(mm7, mm3);
movq_r2r(mm0, mm1);
psrlw_i2r(8, mm0);
psllw_i2r(8, mm1);
psrlw_i2r(8, mm1);
pxor_r2r(mm7, mm7);
movd_m2r(*up, mm3);
movd_m2r(*vp, mm2);
punpcklbw_r2r(mm7, mm2);
punpcklbw_r2r(mm7, mm3);
movq_m2r(CONST_16, mm4);
psubsw_r2r(mm4, mm0);
psubsw_r2r(mm4, mm1);
@ -154,13 +159,10 @@ _evas_yv12torgb_mmx(unsigned char **yuv, unsigned char *rgb, int w, int h)
movq_m2r(CONST_CRVCRV, mm7);
pmullw_r2r(mm3, mm7);
movq_m2r(CONST_CBUCBU, mm6);
pmullw_r2r(mm2, mm6);
movq_m2r(CONST_CGUCGU, mm5);
pmullw_r2r(mm2, mm5);
movq_m2r(CONST_CGVCGV, mm4);
pmullw_r2r(mm3, mm4);
@ -213,7 +215,6 @@ _evas_yv12torgb_mmx(unsigned char **yuv, unsigned char *rgb, int w, int h)
punpcklbw_r2r(mm5, mm7);
por_r2r(mm7, mm0);
// pxor_r2r(mm1, mm1);
movq_m2r(CONST_FF, mm1);
movq_r2r(mm0, mm5);
movq_r2r(mm3, mm6);