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author | David Conrad <lessen42@gmail.com> | 2009-01-06 23:03:33 +0000 |
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committer | Guillaume Poirier <gpoirier@mplayerhq.hu> | 2009-01-06 23:03:33 +0000 |
commit | 4929c63679c8660762d253e05cb10e737aeadc11 (patch) | |
tree | c0c5be6c29737f8acde89342afc57ea4b9c4be53 /libavcodec/ppc | |
parent | 8b2bc85f292a593ef9f96156752d1b963f78b629 (diff) | |
download | ffmpeg-streaming-4929c63679c8660762d253e05cb10e737aeadc11.zip ffmpeg-streaming-4929c63679c8660762d253e05cb10e737aeadc11.tar.gz |
Add Altivec version of vector_fmul_window.
Patch by David Conrad %lessen42 A gmail P com%
Originally committed as revision 16459 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ppc')
-rw-r--r-- | libavcodec/ppc/float_altivec.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libavcodec/ppc/float_altivec.c b/libavcodec/ppc/float_altivec.c index 6f6246f..fd4aa53 100644 --- a/libavcodec/ppc/float_altivec.c +++ b/libavcodec/ppc/float_altivec.c @@ -23,6 +23,7 @@ #include "gcc_fixes.h" #include "dsputil_altivec.h" +#include "util_altivec.h" static void vector_fmul_altivec(float *dst, const float *src, int len) { @@ -149,6 +150,43 @@ static void vector_fmul_add_add_altivec(float *dst, const float *src0, ff_vector_fmul_add_add_c(dst, src0, src1, src2, src3, len, step); } +static void vector_fmul_window_altivec(float *dst, const float *src0, const float *src1, const float *win, float add_bias, int len) +{ + union { + vector float v; + float s[4]; + } vadd; + vector float vadd_bias, zero, t0, t1, s0, s1, wi, wj; + const vector unsigned char reverse = vcprm(3,2,1,0); + int i,j; + + dst += len; + win += len; + src0+= len; + + vadd.s[0] = add_bias; + vadd_bias = vec_splat(vadd.v, 0); + zero = (vector float)vec_splat_u32(0); + + for(i=-len*4, j=len*4-16; i<0; i+=16, j-=16) { + s0 = vec_ld(i, src0); + s1 = vec_ld(j, src1); + wi = vec_ld(i, win); + wj = vec_ld(j, win); + + s1 = vec_perm(s1, s1, reverse); + wj = vec_perm(wj, wj, reverse); + + t0 = vec_madd(s0, wj, vadd_bias); + t0 = vec_nmsub(s1, wi, t0); + t1 = vec_madd(s0, wi, vadd_bias); + t1 = vec_madd(s1, wj, t1); + t1 = vec_perm(t1, t1, reverse); + + vec_st(t0, i, dst); + vec_st(t1, j, dst); + } +} static void int32_to_float_fmul_scalar_altivec(float *dst, const int *src, float mul, int len) { @@ -266,6 +304,7 @@ void float_init_altivec(DSPContext* c, AVCodecContext *avctx) c->vector_fmul_add_add = vector_fmul_add_add_altivec; c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_altivec; if(!(avctx->flags & CODEC_FLAG_BITEXACT)) { + c->vector_fmul_window = vector_fmul_window_altivec; c->float_to_int16 = float_to_int16_altivec; c->float_to_int16_interleave = float_to_int16_interleave_altivec; } |