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

Merge commit 'd0bf20a4f25ac5de021c860a0c8ad05638ee2078'

Browse Source 
* commit 'd0bf20a4f25ac5de021c860a0c8ad05638ee2078':
  ppc: vsx: Implement diff_pixels and get_pixels

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-31 23:43:18 +02:00
commit 1ff47770ca
2 changed files with 56 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
libavcodec/ppc/pixblockdsp.c
View File

@ -228,6 +228,40 @@ static void diff_pixels_altivec(int16_t *restrict block, const uint8_t *s1,
#endif /* HAVE_ALTIVEC */
#if HAVE_VSX
static void get_pixels_vsx(int16_t *restrict block, const uint8_t *pixels,
int line_size)
{
int i;
for (i = 0; i < 8; i++) {
vec_s16 shorts = vsx_ld_u8_s16(0, pixels);
vec_vsx_st(shorts, i * 16, block);
pixels += line_size;
}
}
static void diff_pixels_vsx(int16_t *restrict block, const uint8_t *s1,
const uint8_t *s2, int stride)
{
int i;
vec_s16 shorts1, shorts2;
for (i = 0; i < 8; i++) {
shorts1 = vsx_ld_u8_s16(0, s1);
shorts2 = vsx_ld_u8_s16(0, s2);
shorts1 = vec_sub(shorts1, shorts2);
vec_vsx_st(shorts1, 0, block);
s1 += stride;
s2 += stride;
block += 8;
}
}
#endif /* HAVE_VSX */
av_cold void ff_pixblockdsp_init_ppc(PixblockDSPContext *c,
AVCodecContext *avctx,
unsigned high_bit_depth)
@ -242,4 +276,14 @@ av_cold void ff_pixblockdsp_init_ppc(PixblockDSPContext *c,
c->get_pixels = get_pixels_altivec;
}
#endif /* HAVE_ALTIVEC */
#if HAVE_VSX
if (!PPC_VSX(av_get_cpu_flags()))
return;
c->diff_pixels = diff_pixels_vsx;
if (!high_bit_depth)
c->get_pixels = get_pixels_vsx;
#endif /* HAVE_VSX */
}

12
libavutil/ppc/util_altivec.h
View File

@ -162,4 +162,16 @@ static inline vec_u8 load_with_perm_vec(int offset, const uint8_t *src, vec_u8 p
#endif /* HAVE_ALTIVEC */
#if HAVE_VSX
#if HAVE_BIGENDIAN
#define vsx_ld_u8_s16(off, p) \
((vec_s16)vec_mergeh((vec_u8)vec_splat_u8(0), \
(vec_u8)vec_vsx_ld((off), (p))))
#else
#define vsx_ld_u8_s16(off, p) \
((vec_s16)vec_mergeh((vec_u8)vec_vsx_ld((off), (p)), \
(vec_u8)vec_splat_u8(0)))
#endif /* HAVE_BIGENDIAN */
#endif /* HAVE_VSX */
#endif /* AVUTIL_PPC_UTIL_ALTIVEC_H */