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altivec support for snow
Originally committed as revision 5227 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Luca Barbato
parent
302ed0ddcd
commit
e62c29bf57
795
libavcodec/ppc/dsputil_snow_altivec.c
Normal file
795
libavcodec/ppc/dsputil_snow_altivec.c
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@ -0,0 +1,795 @@
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/*
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* Altivec optimized snow DSP utils
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* Copyright (c) 2006 Luca Barbato <lu_zero@gentoo.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*
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*/
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#include "../dsputil.h"
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#include "gcc_fixes.h"
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#include "dsputil_altivec.h"
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#include "../snow.h"
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#undef NDEBUG
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#include <assert.h>
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//FIXME remove this replication
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#define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num)))
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static DWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
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{
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int offset;
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DWTELEM * buffer;
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// av_log(NULL, AV_LOG_DEBUG, "Cache hit: %d\n", line);
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assert(buf->data_stack_top >= 0);
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// assert(!buf->line[line]);
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if (buf->line[line])
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return buf->line[line];
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offset = buf->line_width * line;
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buffer = buf->data_stack[buf->data_stack_top];
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buf->data_stack_top--;
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buf->line[line] = buffer;
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// av_log(NULL, AV_LOG_DEBUG, "slice_buffer_load_line: line: %d remaining: %d\n", line, buf->data_stack_top + 1);
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return buffer;
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}
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//altivec code
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void ff_snow_horizontal_compose97i_altivec(DWTELEM *b, int width)
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{
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const int w2= (width+1)>>1;
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DECLARE_ALIGNED_16(DWTELEM, temp[(width>>1)]);
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const int w_l= (width>>1);
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const int w_r= w2 - 1;
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int i;
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vector signed int t1, t2, x, y, tmp1, tmp2;
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vector signed int *vbuf, *vtmp;
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vector unsigned char align;
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{ // Lift 0
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DWTELEM * const ref = b + w2 - 1;
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DWTELEM b_0 = b[0];
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vbuf = (vector signed int *)b;
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tmp1 = vec_ld (0, ref);
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align = vec_lvsl (0, ref);
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tmp2 = vec_ld (15, ref);
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t1= vec_perm(tmp1, tmp2, align);
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i = 0;
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for (i=0; i<w_l-15; i+=16) {
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#if 0
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b[i+0] = b[i+0] - ((3 * (ref[i+0] + ref[i+1]) + 4) >> 3);
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b[i+1] = b[i+1] - ((3 * (ref[i+1] + ref[i+2]) + 4) >> 3);
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b[i+2] = b[i+2] - ((3 * (ref[i+2] + ref[i+3]) + 4) >> 3);
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b[i+3] = b[i+3] - ((3 * (ref[i+3] + ref[i+4]) + 4) >> 3);
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#else
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tmp1 = vec_ld (0, ref+4+i);
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tmp2 = vec_ld (15, ref+4+i);
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_add(vec_add(y,y),y);
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tmp1 = vec_ld (0, ref+8+i);
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y = vec_add(y, vec_splat_s32(4));
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y = vec_sra(y, vec_splat_u32(3));
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tmp2 = vec_ld (15, ref+8+i);
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*vbuf = vec_sub(*vbuf, y);
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t1=t2;
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vbuf++;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_add(vec_add(y,y),y);
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tmp1 = vec_ld (0, ref+12+i);
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y = vec_add(y, vec_splat_s32(4));
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y = vec_sra(y, vec_splat_u32(3));
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tmp2 = vec_ld (15, ref+12+i);
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*vbuf = vec_sub(*vbuf, y);
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t1=t2;
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vbuf++;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_add(vec_add(y,y),y);
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tmp1 = vec_ld (0, ref+16+i);
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y = vec_add(y, vec_splat_s32(4));
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y = vec_sra(y, vec_splat_u32(3));
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tmp2 = vec_ld (15, ref+16+i);
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*vbuf = vec_sub(*vbuf, y);
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t1=t2;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_add(vec_add(y,y),y);
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vbuf++;
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y = vec_add(y, vec_splat_s32(4));
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y = vec_sra(y, vec_splat_u32(3));
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*vbuf = vec_sub(*vbuf, y);
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t1=t2;
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vbuf++;
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#endif
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}
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snow_horizontal_compose_lift_lead_out(i, b, b, ref, width, w_l, 0, W_DM, W_DO, W_DS);
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b[0] = b_0 - ((W_DM * 2 * ref[1]+W_DO)>>W_DS);
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}
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{ // Lift 1
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DWTELEM * const dst = b+w2;
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i = 0;
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for(; (((long)&dst[i]) & 0xF) && i<w_r; i++){
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dst[i] = dst[i] - (b[i] + b[i + 1]);
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}
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align = vec_lvsl(0, b+i);
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tmp1 = vec_ld(0, b+i);
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vbuf = (vector signed int*) (dst + i);
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tmp2 = vec_ld(15, b+i);
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t1 = vec_perm(tmp1, tmp2, align);
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for (; i<w_r-3; i+=4) {
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#if 0
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dst[i] = dst[i] - (b[i] + b[i + 1]);
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dst[i+1] = dst[i+1] - (b[i+1] + b[i + 2]);
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dst[i+2] = dst[i+2] - (b[i+2] + b[i + 3]);
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dst[i+3] = dst[i+3] - (b[i+3] + b[i + 4]);
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#else
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tmp1 = vec_ld(0, b+4+i);
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tmp2 = vec_ld(15, b+4+i);
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1, vec_sld(t1,t2,4));
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*vbuf = vec_sub (*vbuf, y);
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vbuf++;
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t1 = t2;
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#endif
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}
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snow_horizontal_compose_lift_lead_out(i, dst, dst, b, width, w_r, 1, W_CM, W_CO, W_CS);
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}
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{ // Lift 2
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DWTELEM * const ref = b+w2 - 1;
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DWTELEM b_0 = b[0];
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vbuf= (vector signed int *) b;
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tmp1 = vec_ld (0, ref);
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align = vec_lvsl (0, ref);
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tmp2 = vec_ld (15, ref);
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t1= vec_perm(tmp1, tmp2, align);
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i = 0;
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for (; i<w_l-15; i+=16) {
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#if 0
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b[i] = b[i] - (((8 -(ref[i] + ref[i+1])) - (b[i] <<2)) >> 4);
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b[i+1] = b[i+1] - (((8 -(ref[i+1] + ref[i+2])) - (b[i+1]<<2)) >> 4);
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b[i+2] = b[i+2] - (((8 -(ref[i+2] + ref[i+3])) - (b[i+2]<<2)) >> 4);
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b[i+3] = b[i+3] - (((8 -(ref[i+3] + ref[i+4])) - (b[i+3]<<2)) >> 4);
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#else
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tmp1 = vec_ld (0, ref+4+i);
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tmp2 = vec_ld (15, ref+4+i);
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_sub(vec_splat_s32(8),y);
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tmp1 = vec_ld (0, ref+8+i);
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x = vec_sl(*vbuf,vec_splat_u32(2));
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y = vec_sra(vec_sub(y,x),vec_splat_u32(4));
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tmp2 = vec_ld (15, ref+8+i);
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*vbuf = vec_sub( *vbuf, y);
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t1 = t2;
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vbuf++;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_sub(vec_splat_s32(8),y);
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tmp1 = vec_ld (0, ref+12+i);
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x = vec_sl(*vbuf,vec_splat_u32(2));
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y = vec_sra(vec_sub(y,x),vec_splat_u32(4));
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tmp2 = vec_ld (15, ref+12+i);
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*vbuf = vec_sub( *vbuf, y);
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t1 = t2;
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vbuf++;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_sub(vec_splat_s32(8),y);
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tmp1 = vec_ld (0, ref+16+i);
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x = vec_sl(*vbuf,vec_splat_u32(2));
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y = vec_sra(vec_sub(y,x),vec_splat_u32(4));
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tmp2 = vec_ld (15, ref+16+i);
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*vbuf = vec_sub( *vbuf, y);
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t1 = t2;
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vbuf++;
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t2 = vec_perm(tmp1, tmp2, align);
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y = vec_add(t1,vec_sld(t1,t2,4));
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y = vec_sub(vec_splat_s32(8),y);
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t1 = t2;
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x = vec_sl(*vbuf,vec_splat_u32(2));
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y = vec_sra(vec_sub(y,x),vec_splat_u32(4));
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*vbuf = vec_sub( *vbuf, y);
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vbuf++;
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#endif
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}
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snow_horizontal_compose_liftS_lead_out(i, b, b, ref, width, w_l);
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b[0] = b_0 - (((-2 * ref[1] + W_BO) - 4 * b_0) >> W_BS);
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}
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{ // Lift 3
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DWTELEM * const src = b+w2;
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vbuf = (vector signed int *)b;
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vtmp = (vector signed int *)temp;
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i = 0;
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align = vec_lvsl(0, src);
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for (; i<w_r-3; i+=4) {
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#if 0
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temp[i] = src[i] - ((-3*(b[i] + b[i+1]))>>1);
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temp[i+1] = src[i+1] - ((-3*(b[i+1] + b[i+2]))>>1);
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temp[i+2] = src[i+2] - ((-3*(b[i+2] + b[i+3]))>>1);
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temp[i+3] = src[i+3] - ((-3*(b[i+3] + b[i+4]))>>1);
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#else
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tmp1 = vec_ld(0,src+i);
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t1 = vec_add(vbuf[0],vec_sld(vbuf[0],vbuf[1],4));
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tmp2 = vec_ld(15,src+i);
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t1 = vec_sub(vec_splat_s32(0),t1); //bad!
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t1 = vec_add(t1,vec_add(t1,t1));
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t2 = vec_perm(tmp1 ,tmp2 ,align);
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t1 = vec_sra(t1,vec_splat_u32(1));
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vbuf++;
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*vtmp = vec_sub(t2,t1);
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vtmp++;
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#endif
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}
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snow_horizontal_compose_lift_lead_out(i, temp, src, b, width, w_r, 1, -3, 0, 1);
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}
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{
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//Interleave
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int a;
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vector signed int *t = (vector signed int *)temp,
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*v = (vector signed int *)b;
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snow_interleave_line_header(&i, width, b, temp);
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for (; (i & 0xE) != 0xE; i-=2){
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b[i+1] = temp[i>>1];
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b[i] = b[i>>1];
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}
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for (i-=14; i>=0; i-=16){
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a=i/4;
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v[a+3]=vec_mergel(v[(a>>1)+1],t[(a>>1)+1]);
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v[a+2]=vec_mergeh(v[(a>>1)+1],t[(a>>1)+1]);
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v[a+1]=vec_mergel(v[a>>1],t[a>>1]);
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v[a]=vec_mergeh(v[a>>1],t[a>>1]);
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}
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}
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}
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void ff_snow_vertical_compose97i_altivec(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width)
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{
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int i, w4 = width/4;
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vector signed int *v0, *v1,*v2,*v3,*v4,*v5;
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vector signed int t1, t2;
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v0=(vector signed int *)b0;
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v1=(vector signed int *)b1;
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v2=(vector signed int *)b2;
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v3=(vector signed int *)b3;
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v4=(vector signed int *)b4;
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v5=(vector signed int *)b5;
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for (i=0; i< w4;i++)
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{
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#if 0
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b4[i] -= (3*(b3[i] + b5[i])+4)>>3;
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b3[i] -= ((b2[i] + b4[i]));
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b2[i] += ((b1[i] + b3[i])+4*b2[i]+8)>>4;
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b1[i] += (3*(b0[i] + b2[i]))>>1;
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#else
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t1 = vec_add(v3[i], v5[i]);
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t2 = vec_add(t1, vec_add(t1,t1));
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t1 = vec_add(t2, vec_splat_s32(4));
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v4[i] = vec_sub(v4[i], vec_sra(t1,vec_splat_u32(3)));
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v3[i] = vec_sub(v3[i], vec_add(v2[i], v4[i]));
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t1 = vec_add(vec_splat_s32(8), vec_add(v1[i], v3[i]));
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t2 = vec_sl(v2[i], vec_splat_u32(2));
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v2[i] = vec_add(v2[i], vec_sra(vec_add(t1,t2),vec_splat_u32(4)));
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t1 = vec_add(v0[i], v2[i]);
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t2 = vec_add(t1, vec_add(t1,t1));
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v1[i] = vec_add(v1[i], vec_sra(t2,vec_splat_u32(1)));
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#endif
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}
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for(i*=4; i < width; i++)
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{
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b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
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b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
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b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
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b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
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}
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}
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static void inner_add_yblock_bw_8_obmc_16_altivec(uint8_t *obmc,
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const int obmc_stride,
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uint8_t * * block, int b_w,
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int b_h, int src_x, int src_y,
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int src_stride, slice_buffer * sb,
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int add, uint8_t * dst8)
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{
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int y, x;
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DWTELEM * dst;
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vector bool int mask;
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vector signed int vs;
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vector unsigned short h1, h2, l1, l2;
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vector unsigned char ih, il, tmp1, tmp2, align;
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vector unsigned char b0,b1,b2,b3;
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|
||||
for(y=0; y<b_h; y++){
|
||||
//FIXME ugly missue of obmc_stride
|
||||
|
||||
uint8_t *obmc1= obmc + y*obmc_stride;
|
||||
uint8_t *obmc2= obmc1+ (obmc_stride>>1);
|
||||
uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
|
||||
uint8_t *obmc4= obmc3+ (obmc_stride>>1);
|
||||
#if 1
|
||||
vector unsigned char ob1;
|
||||
vector unsigned char ob2;
|
||||
vector unsigned char ob3;
|
||||
vector unsigned char ob4;
|
||||
|
||||
#endif
|
||||
DECLARE_ALIGNED_16(int, vbuf[16]);
|
||||
vector signed int *v = (vector signed int *)vbuf, *d;
|
||||
|
||||
dst = slice_buffer_get_line(sb, src_y + y);
|
||||
d = (vector signed int *)(dst + src_x);
|
||||
|
||||
#if 0
|
||||
for(x=0; x<b_w; x++){
|
||||
vbuf[x] = obmc1[x] * block[3][x + y*src_stride]
|
||||
+obmc2[x] * block[2][x + y*src_stride]
|
||||
+obmc3[x] * block[1][x + y*src_stride]
|
||||
+obmc4[x] * block[0][x + y*src_stride];
|
||||
}
|
||||
#else
|
||||
|
||||
|
||||
// load blocks
|
||||
//FIXME i could avoid some loads!
|
||||
tmp1 = vec_ld(0, &block[3][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[3][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[3][y*src_stride]);
|
||||
|
||||
b3 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[2][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[2][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[2][y*src_stride]);
|
||||
|
||||
b2 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[1][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[1][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[1][y*src_stride]);
|
||||
|
||||
b1 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[0][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[0][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[0][y*src_stride]);
|
||||
|
||||
b0 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
// load obmcs
|
||||
|
||||
tmp1 = vec_ld(0, obmc1);
|
||||
align = vec_lvsl(0, obmc1);
|
||||
tmp2 = vec_ld(15, obmc1);
|
||||
|
||||
ob1 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc2);
|
||||
align = vec_lvsl(0, obmc2);
|
||||
tmp2 = vec_ld(15, obmc2);
|
||||
|
||||
ob2 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc3);
|
||||
align = vec_lvsl(0, obmc3);
|
||||
tmp2 = vec_ld(15, obmc3);
|
||||
|
||||
ob3 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc4);
|
||||
align = vec_lvsl(0, obmc4);
|
||||
tmp2 = vec_ld(15, obmc4);
|
||||
|
||||
ob4 = vec_perm(tmp1,tmp2,align);
|
||||
h1 = vec_mergeh(ob1, ob2); /*h1 <- [ a,b,a,b, a,b,a,b,
|
||||
a,b,a,b, a,b,a,b ] */
|
||||
h2 = vec_mergeh(ob3, ob4); /*h2 <- [ c,d,c,d, c,d,c,d,
|
||||
c,d,c,d, c,d,c,d ] */
|
||||
|
||||
ih = vec_mergeh(h1,h2); /* ih <- [ a,b,c,d,a,b,c,d,a,b,c,d,a,b,c,d ]*/
|
||||
|
||||
l1 = vec_mergeh(b3, b2);
|
||||
|
||||
l2 = vec_mergeh(b1, b0);
|
||||
|
||||
il = vec_mergeh(l1,l2);
|
||||
|
||||
v[0] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
//step1
|
||||
|
||||
h1 = vec_mergeh(ob1, ob2);
|
||||
|
||||
h2 = vec_mergeh(ob3, ob4);
|
||||
|
||||
ih = vec_mergel(h1,h2);
|
||||
|
||||
l1 = vec_mergeh(b3, b2);
|
||||
|
||||
l2 = vec_mergeh(b1, b0);
|
||||
|
||||
il = vec_mergel(l1,l2);
|
||||
|
||||
v[1] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
|
||||
|
||||
#endif
|
||||
if(add)
|
||||
{
|
||||
for(x=0; x<b_w/4; x++)
|
||||
{
|
||||
v[x] = vec_add(v[x], d[x]);
|
||||
v[x] = vec_sra(vec_add(v[x],
|
||||
vec_sl( vec_splat_s32(1),
|
||||
vec_splat_u32(7))),
|
||||
vec_splat_u32(8));
|
||||
|
||||
mask = vec_sl((vector signed int) vec_cmpeq(v[x],v[x]),
|
||||
vec_splat_u32(8));
|
||||
mask = vec_and(v[x],vec_nor(mask,mask));
|
||||
|
||||
mask = (vector signed int) vec_cmpeq((vector signed int)mask,
|
||||
(vector signed int)vec_splat_u32(0));
|
||||
|
||||
vs = vec_sra(v[x],vec_splat_u32(8));
|
||||
vs = vec_sra(v[x],vec_splat_u32(8));
|
||||
vs = vec_sra(v[x],vec_splat_u32(15));
|
||||
|
||||
vs = vec_nor(vs,vs);
|
||||
|
||||
v[x]= vec_sel(v[x],vs,mask);
|
||||
}
|
||||
for(x=0; x<b_w; x++)
|
||||
dst8[x + y*src_stride] = vbuf[x];
|
||||
}
|
||||
else
|
||||
for(x=0; x<b_w/4; x++)
|
||||
d[x] = vec_sub(d[x], v[x]);
|
||||
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
static void inner_add_yblock_bw_16_obmc_32_altivec(uint8_t *obmc,
|
||||
const int obmc_stride,
|
||||
uint8_t * * block, int b_w,
|
||||
int b_h, int src_x, int src_y,
|
||||
int src_stride, slice_buffer * sb,
|
||||
int add, uint8_t * dst8)
|
||||
{
|
||||
int y, x;
|
||||
DWTELEM * dst;
|
||||
vector unsigned short h1, h2, l1, l2;
|
||||
vector unsigned char ih, il, tmp1, tmp2, align;
|
||||
vector unsigned char b0,b1,b2,b3;
|
||||
|
||||
for(y=0; y<b_h; y++){
|
||||
//FIXME ugly missue of obmc_stride
|
||||
|
||||
uint8_t *obmc1= obmc + y*obmc_stride;
|
||||
uint8_t *obmc2= obmc1+ (obmc_stride>>1);
|
||||
uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
|
||||
uint8_t *obmc4= obmc3+ (obmc_stride>>1);
|
||||
|
||||
vector unsigned char ob1;
|
||||
vector unsigned char ob2;
|
||||
vector unsigned char ob3;
|
||||
vector unsigned char ob4;
|
||||
|
||||
DECLARE_ALIGNED_16(int, vbuf[b_w]);
|
||||
vector signed int *v = (vector signed int *)vbuf, *d;
|
||||
|
||||
dst = slice_buffer_get_line(sb, src_y + y);
|
||||
d = (vector signed int *)(dst + src_x);
|
||||
|
||||
// load blocks
|
||||
|
||||
tmp1 = vec_ld(0, &block[3][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[3][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[3][y*src_stride]);
|
||||
|
||||
b3 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[2][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[2][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[2][y*src_stride]);
|
||||
|
||||
b2 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[1][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[1][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[1][y*src_stride]);
|
||||
|
||||
b1 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, &block[0][y*src_stride]);
|
||||
align = vec_lvsl(0, &block[0][y*src_stride]);
|
||||
tmp2 = vec_ld(15, &block[0][y*src_stride]);
|
||||
|
||||
b0 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
// load obmcs
|
||||
|
||||
tmp1 = vec_ld(0, obmc1);
|
||||
align = vec_lvsl(0, obmc1);
|
||||
tmp2 = vec_ld(15, obmc1);
|
||||
|
||||
ob1 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc2);
|
||||
align = vec_lvsl(0, obmc2);
|
||||
tmp2 = vec_ld(15, obmc2);
|
||||
|
||||
ob2 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc3);
|
||||
align = vec_lvsl(0, obmc3);
|
||||
tmp2 = vec_ld(15, obmc3);
|
||||
|
||||
ob3 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
tmp1 = vec_ld(0, obmc4);
|
||||
align = vec_lvsl(0, obmc4);
|
||||
tmp2 = vec_ld(15, obmc4);
|
||||
|
||||
ob4 = vec_perm(tmp1,tmp2,align);
|
||||
|
||||
//step0
|
||||
h1 = vec_mergeh(ob1, ob2); /*h1 <- [ a,b,a,b,
|
||||
a,b,a,b,
|
||||
a,b,a,b,
|
||||
a,b,a,b ] */
|
||||
h2 = vec_mergeh(ob3, ob4); /*h2 <- [ c,d,c,d,
|
||||
c,d,c,d,
|
||||
c,d,c,d,
|
||||
c,d,c,d ] */
|
||||
|
||||
ih = vec_mergeh(h1,h2); /* ih <- [ a,b,c,d,a,b,c,d,a,b,c,d,a,b,c,d ]*/
|
||||
|
||||
l1 = vec_mergeh(b3, b2);
|
||||
|
||||
l2 = vec_mergeh(b1, b0);
|
||||
|
||||
il = vec_mergeh(l1,l2);
|
||||
|
||||
v[0] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
//step1
|
||||
|
||||
h1 = vec_mergeh(ob1, ob2);
|
||||
|
||||
h2 = vec_mergeh(ob3, ob4);
|
||||
|
||||
ih = vec_mergel(h1,h2);
|
||||
|
||||
l1 = vec_mergeh(b3, b2);
|
||||
|
||||
l2 = vec_mergeh(b1, b0);
|
||||
|
||||
il = vec_mergel(l1,l2);
|
||||
|
||||
v[1] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
|
||||
//step2
|
||||
h1 = vec_mergel(ob1, ob2);
|
||||
|
||||
h2 = vec_mergel(ob3, ob4);
|
||||
|
||||
ih = vec_mergeh(h1,h2);
|
||||
|
||||
l1 = vec_mergel(b3, b2);
|
||||
|
||||
l2 = vec_mergel(b1, b0);
|
||||
|
||||
il = vec_mergeh(l1,l2);
|
||||
|
||||
v[2] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
|
||||
//step3
|
||||
h1 = vec_mergel(ob1, ob2);
|
||||
|
||||
h2 = vec_mergel(ob3, ob4);
|
||||
|
||||
ih = vec_mergel(h1,h2);
|
||||
|
||||
l1 = vec_mergel(b3, b2);
|
||||
|
||||
l2 = vec_mergel(b1, b0);
|
||||
|
||||
il = vec_mergel(l1,l2);
|
||||
|
||||
v[3] = vec_msum(ih, il, vec_splat_u32(0));
|
||||
#if 1
|
||||
for(x=0; x<b_w; x++)
|
||||
if(add){
|
||||
vbuf[x] += dst[x + src_x];
|
||||
vbuf[x] = (vbuf[x] + (1<<(FRAC_BITS-1))) >> FRAC_BITS;
|
||||
if(vbuf[x]&(~255)) vbuf[x]= ~(vbuf[x]>>31);
|
||||
dst8[x + y*src_stride] = vbuf[x];
|
||||
}else{
|
||||
dst[x + src_x] -= vbuf[x];
|
||||
}
|
||||
#else
|
||||
if(add)
|
||||
{
|
||||
for(x=0; x<b_w/4; x++)
|
||||
{
|
||||
v[x] = vec_add(v[x], d[x]);
|
||||
v[x] = vec_sra(vec_add(v[x],
|
||||
vec_sl( vec_splat_s32(1),
|
||||
vec_splat_u32(7))),
|
||||
vec_splat_u32(8));
|
||||
|
||||
mask = vec_sl((vector signed int) vec_cmpeq(v[x],v[x]),vec_splat_u32(8));
|
||||
mask = vec_and(v[x],vec_nor(mask,mask));
|
||||
|
||||
mask = (vector signed int) vec_cmpeq((vector signed int)mask,(vector signed int)vec_splat_u32(0));
|
||||
|
||||
vs = vec_sra(v[x],vec_splat_u32(8));
|
||||
vs = vec_sra(v[x],vec_splat_u32(8));
|
||||
vs = vec_sra(v[x],vec_splat_u32(15));
|
||||
|
||||
vs = vec_nor(vs,vs);
|
||||
|
||||
v[x]= vec_sel(v[x],vs,mask);
|
||||
}
|
||||
|
||||
for(x=0; x<b_w; x++)
|
||||
dst8[x + y*src_stride] = vbuf[x];
|
||||
|
||||
}
|
||||
else
|
||||
for(x=0; x<b_w/4; x++)
|
||||
d[x] = vec_sub(d[x], v[x]);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void ff_snow_inner_add_yblock_altivec(uint8_t *obmc, const int obmc_stride,
|
||||
uint8_t * * block, int b_w, int b_h,
|
||||
int src_x, int src_y, int src_stride,
|
||||
slice_buffer * sb, int add,
|
||||
uint8_t * dst8)
|
||||
{
|
||||
if (b_w == 16)
|
||||
inner_add_yblock_bw_16_obmc_32_altivec(obmc, obmc_stride, block, b_w,
|
||||
b_h, src_x, src_y, src_stride,
|
||||
sb, add, dst8);
|
||||
else if (b_w == 8 && ! src_x&15 )
|
||||
inner_add_yblock_bw_8_obmc_16_altivec(obmc, obmc_stride, block,
|
||||
b_w, b_h, src_x, src_y,
|
||||
src_stride, sb, add, dst8);
|
||||
else
|
||||
|
||||
ff_snow_inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,
|
||||
src_y, src_stride, sb, add, dst8);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user