RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

snow altivec is broken 

Originally committed as revision 10256 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Luca Barbato 2007-08-28 13:39:50 +00:00
parent d0e1cd3d9e
commit 55bf7fb613
1 changed files with 24 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
libavcodec/ppc/snow_altivec.c
View File

@ -58,57 +58,56 @@ static DWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
//altivec code
void ff_snow_horizontal_compose97i_altivec(DWTELEM *b, int width)
void ff_snow_horizontal_compose97i_altivec(IDWTELEM *b, int width)
{
#if 0
const int w2= (width+1)>>1;
DECLARE_ALIGNED_16(DWTELEM, temp[(width>>1)]);
DECLARE_ALIGNED_16(IDWTELEM, temp[(width>>1)]);
const int w_l= (width>>1);
const int w_r= w2 - 1;
int i;
vector signed int t1, t2, x, y, tmp1, tmp2;
vector signed int *vbuf, *vtmp;
vector signed short t1, t2, x, y, tmp1, tmp2;
vector signed short *vbuf, *vtmp;
vector unsigned char align;
{ // Lift 0
DWTELEM * const ref = b + w2 - 1;
DWTELEM b_0 = b[0];
vbuf = (vector signed int *)b;
IDWTELEM * const ref = b + w2 - 1;
IDWTELEM b_0 = b[0];
vector signed short v7 = vec_splat_s16(7);
vbuf = (vector signed short *)b;
tmp1 = vec_ld (0, ref);
align = vec_lvsl (0, ref);
tmp2 = vec_ld (15, ref);
t1= vec_perm(tmp1, tmp2, align);
i = 0;
t1 = vec_perm(tmp1, tmp2, align);
for (i=0; i<w_l-15; i+=16) {
#if 0
b[i+0] = b[i+0] - ((3 * (ref[i+0] + ref[i+1]) + 4) >> 3);
/* b[i+0] = b[i+0] - ((3 * (ref[i+0] + ref[i+1]) + 4) >> 3);
b[i+1] = b[i+1] - ((3 * (ref[i+1] + ref[i+2]) + 4) >> 3);
b[i+2] = b[i+2] - ((3 * (ref[i+2] + ref[i+3]) + 4) >> 3);
b[i+3] = b[i+3] - ((3 * (ref[i+3] + ref[i+4]) + 4) >> 3);
b[i+3] = b[i+3] - ((3 * (ref[i+3] + ref[i+4]) + 4) >> 3);*/
b[i+0] = b[i+0] + ((7 * (ref[i+0] + ref[i+1])-1) >> 8);
#else
tmp1 = vec_ld (0, ref+4+i);
tmp2 = vec_ld (15, ref+4+i);
tmp1 = vec_ld (0, ref+8+i);
tmp2 = vec_ld (15, ref+8+i);
t2 = vec_perm(tmp1, tmp2, align);
y = vec_add(t1,vec_sld(t1,t2,4));
y = vec_add(vec_add(y,y),y);
y = vec_add(t1, vec_sld(t1,t2,2));
// y = vec_add(vec_add(y,y),y);
tmp1 = vec_ld (0, ref+8+i);
tmp1 = vec_ld (0, ref+12+i);
y = vec_add(y, vec_splat_s32(4));
y = vec_sra(y, vec_splat_u32(3));
tmp2 = vec_ld (15, ref+8+i);
tmp2 = vec_ld (15, ref+12+i);
*vbuf = vec_sub(*vbuf, y);
t1=t2;
t1 = t2;
vbuf++;
@ -162,6 +161,7 @@ void ff_snow_horizontal_compose97i_altivec(DWTELEM *b, int width)
vbuf++;
#endif
}
snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
@ -363,6 +363,7 @@ void ff_snow_horizontal_compose97i_altivec(DWTELEM *b, int width)
}
}
#endif
}
void ff_snow_vertical_compose97i_altivec(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width)
@ -780,7 +781,9 @@ void ff_snow_inner_add_yblock_altivec(uint8_t *obmc, const int obmc_stride,
void snow_init_altivec(DSPContext* c, AVCodecContext *avctx)
{
#if 0
c->horizontal_compose97i = ff_snow_horizontal_compose97i_altivec;
c->vertical_compose97i = ff_snow_vertical_compose97i_altivec;
c->inner_add_yblock = ff_snow_inner_add_yblock_altivec;
#endif
}