diff options
-rw-r--r-- | libavcodec/ppc/dsputil_altivec.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/libavcodec/ppc/dsputil_altivec.c b/libavcodec/ppc/dsputil_altivec.c index 4c32f721f9..f292bf6143 100644 --- a/libavcodec/ppc/dsputil_altivec.c +++ b/libavcodec/ppc/dsputil_altivec.c @@ -1698,6 +1698,29 @@ int has_altivec(void) #endif /* __AMIGAOS4__ */ } +static void vorbis_inverse_coupling_altivec(float *mag, float *ang, + int blocksize) +{ + int i; + vector float m, a; + vector bool int t0, t1; + const vector unsigned int v_31 = //XXX + vec_add(vec_add(vec_splat_u32(15),vec_splat_u32(15)),vec_splat_u32(1)); + for(i=0; i<blocksize; i+=4) { + m = vec_ld(0, mag+i); + a = vec_ld(0, ang+i); + t0 = vec_cmple(m, (vector float)vec_splat_u32(0)); + t1 = vec_cmple(a, (vector float)vec_splat_u32(0)); + a = vec_xor(a, vec_sl((vector unsigned int)t0, v_31)); // (a ^ sign(m)) + t0 = vec_and(a, t1); + t1 = vec_andc(a, t1); + a = vec_add(m, t0); + m = vec_sub(m, t1); + vec_ste(a, 0, ang+i); + vec_ste(m, 0, mag+i); + } +} + /* next one assumes that ((line_size % 8) == 0) */ void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) { |