diff options
author | David Conrad <lessen42@gmail.com> | 2009-01-07 01:29:26 +0300 |
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committer | Guillaume Poirier <gpoirier@mplayerhq.hu> | 2009-01-07 01:29:26 +0300 |
commit | 8b2bc85f292a593ef9f96156752d1b963f78b629 (patch) | |
tree | ae04007e818fdea6610719415e8df231b3636f30 /libavcodec/ppc | |
parent | 094d9df72e8372b0a7c6e9381b375b438db3fa3c (diff) |
add AltiVec implementation of weight_h264_pixels(16|8)x(16|8|4)
Patch by David Conrad %lessen42 A gmail P com%
Originally committed as revision 16458 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ppc')
-rw-r--r-- | libavcodec/ppc/h264_altivec.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libavcodec/ppc/h264_altivec.c b/libavcodec/ppc/h264_altivec.c index 77eccd4116..ef6ecbadde 100644 --- a/libavcodec/ppc/h264_altivec.c +++ b/libavcodec/ppc/h264_altivec.c @@ -935,6 +935,50 @@ static void h264_h_loop_filter_luma_altivec(uint8_t *pix, int stride, int alpha, write16x4(pix-2, stride, line1, line2, line3, line4); } +static av_always_inline +void weight_h264_WxH_altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset, int w, int h) +{ + int y, aligned; + vec_u8 vblock; + vec_s16 vtemp, vweight, voffset, v0, v1; + vec_u16 vlog2_denom; + DECLARE_ALIGNED_16(int32_t, temp[4]); + LOAD_ZERO; + + offset <<= log2_denom; + if(log2_denom) offset += 1<<(log2_denom-1); + temp[0] = log2_denom; + temp[1] = weight; + temp[2] = offset; + + vtemp = (vec_s16)vec_ld(0, temp); + vlog2_denom = (vec_u16)vec_splat(vtemp, 1); + vweight = vec_splat(vtemp, 3); + voffset = vec_splat(vtemp, 5); + aligned = !((unsigned long)block & 0xf); + + for (y=0; y<h; y++) { + vblock = vec_ld(0, block); + + v0 = (vec_s16)vec_mergeh(zero_u8v, vblock); + v1 = (vec_s16)vec_mergel(zero_u8v, vblock); + + if (w == 16 || aligned) { + v0 = vec_mladd(v0, vweight, zero_s16v); + v0 = vec_adds(v0, voffset); + v0 = vec_sra(v0, vlog2_denom); + } + if (w == 16 || !aligned) { + v1 = vec_mladd(v1, vweight, zero_s16v); + v1 = vec_adds(v1, voffset); + v1 = vec_sra(v1, vlog2_denom); + } + vblock = vec_packsu(v0, v1); + vec_st(vblock, 0, block); + + block += stride; + } +} static av_always_inline void biweight_h264_WxH_altivec(uint8_t *dst, uint8_t *src, int stride, int log2_denom, @@ -1002,6 +1046,9 @@ void biweight_h264_WxH_altivec(uint8_t *dst, uint8_t *src, int stride, int log2_ } #define H264_WEIGHT(W,H) \ +static void ff_weight_h264_pixels ## W ## x ## H ## _altivec(uint8_t *block, int stride, int log2_denom, int weight, int offset){ \ + weight_h264_WxH_altivec(block, stride, log2_denom, weight, offset, W, H); \ +}\ static void ff_biweight_h264_pixels ## W ## x ## H ## _altivec(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset){ \ biweight_h264_WxH_altivec(dst, src, stride, log2_denom, weightd, weights, offset, W, H); \ } @@ -1051,6 +1098,11 @@ void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) { dspfunc(avg_h264_qpel, 0, 16); #undef dspfunc + c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels16x16_altivec; + c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels16x8_altivec; + c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels8x16_altivec; + c->weight_h264_pixels_tab[3] = ff_weight_h264_pixels8x8_altivec; + c->weight_h264_pixels_tab[4] = ff_weight_h264_pixels8x4_altivec; c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels16x16_altivec; c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels16x8_altivec; c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels8x16_altivec; |