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ffmpeg/libavcodec/i386/snowdsp_mmx.c
Robert Edele 4567b4bdab Add the mmx and sse2 implementations of ff_snow_vertical_compose(). 
Patch by Robert Edele < yartrebo AH earthlink POIS net >
Original thread:
Date: Mar 20, 2006 5:54 PM
Subject: [Ffmpeg-devel] [PATCH] snow mmx + sse2 part 3

Originally committed as revision 5185 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-03-20 22:27:59 +00:00

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/*
* MMX and SSE2 optimized snow DSP utils
* Copyright (c) 2005-2006 Robert Edele <yartrebo@earthlink.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "../avcodec.h"
#include "../snow.h"
#include "mmx.h"
#define snow_vertical_compose_sse2_load_add(op,r,t0,t1,t2,t3)\
""op" (%%"r",%%"REG_d",4), %%"t0" \n\t"\
""op" 16(%%"r",%%"REG_d",4), %%"t1" \n\t"\
""op" 32(%%"r",%%"REG_d",4), %%"t2" \n\t"\
""op" 48(%%"r",%%"REG_d",4), %%"t3" \n\t"
#define snow_vertical_compose_sse2_load(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("movdqa",r,t0,t1,t2,t3)
#define snow_vertical_compose_sse2_add(r,t0,t1,t2,t3)\
snow_vertical_compose_sse2_load_add("paddd",r,t0,t1,t2,t3)
#define snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
"psubd %%"s0", %%"t0" \n\t"\
"psubd %%"s1", %%"t1" \n\t"\
"psubd %%"s2", %%"t2" \n\t"\
"psubd %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_store(w,s0,s1,s2,s3)\
"movdqa %%"s0", (%%"w",%%"REG_d",4) \n\t"\
"movdqa %%"s1", 16(%%"w",%%"REG_d",4) \n\t"\
"movdqa %%"s2", 32(%%"w",%%"REG_d",4) \n\t"\
"movdqa %%"s3", 48(%%"w",%%"REG_d",4) \n\t"
#define snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)\
"psrad $"n", %%"t0" \n\t"\
"psrad $"n", %%"t1" \n\t"\
"psrad $"n", %%"t2" \n\t"\
"psrad $"n", %%"t3" \n\t"
#define snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
"paddd %%"s0", %%"t0" \n\t"\
"paddd %%"s1", %%"t1" \n\t"\
"paddd %%"s2", %%"t2" \n\t"\
"paddd %%"s3", %%"t3" \n\t"
#define snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)\
"pslld $"n", %%"t0" \n\t"\
"pslld $"n", %%"t1" \n\t"\
"pslld $"n", %%"t2" \n\t"\
"pslld $"n", %%"t3" \n\t"
#define snow_vertical_compose_sse2_move(s0,s1,s2,s3,t0,t1,t2,t3)\
"movdqa %%"s0", %%"t0" \n\t"\
"movdqa %%"s1", %%"t1" \n\t"\
"movdqa %%"s2", %%"t2" \n\t"\
"movdqa %%"s3", %%"t3" \n\t"
void ff_snow_vertical_compose97i_sse2(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){
long i = width;
while(i & 0xF)
{
i--;
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
}
asm volatile (
"jmp 2f \n\t"
"1: \n\t"
"mov %6, %%"REG_a" \n\t"
"mov %4, %%"REG_b" \n\t"
snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\
snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
"pcmpeqd %%xmm1, %%xmm1 \n\t"
"pslld $31, %%xmm1 \n\t"
"psrld $29, %%xmm1 \n\t"
"mov %5, %%"REG_a" \n\t"
snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_sra("3","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_load(REG_a,"xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_sub("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_store(REG_a,"xmm1","xmm3","xmm5","xmm7")
"mov %3, %%"REG_c" \n\t"
snow_vertical_compose_sse2_load(REG_b,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add(REG_c,"xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_sub("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store(REG_b,"xmm0","xmm2","xmm4","xmm6")
"mov %2, %%"REG_a" \n\t"
snow_vertical_compose_sse2_load(REG_c,"xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_sll("2","xmm1","xmm3","xmm5","xmm7")\
snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
"pcmpeqd %%xmm1, %%xmm1 \n\t"
"pslld $31, %%xmm1 \n\t"
"psrld $28, %%xmm1 \n\t"
"mov %1, %%"REG_b" \n\t"
snow_vertical_compose_sse2_r2r_add("xmm1","xmm1","xmm1","xmm1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_sra("4","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add(REG_c,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store(REG_c,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add(REG_b,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_move("xmm0","xmm2","xmm4","xmm6","xmm1","xmm3","xmm5","xmm7")
snow_vertical_compose_sse2_sll("1","xmm0","xmm2","xmm4","xmm6")\
snow_vertical_compose_sse2_r2r_add("xmm1","xmm3","xmm5","xmm7","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_sra("1","xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_add(REG_a,"xmm0","xmm2","xmm4","xmm6")
snow_vertical_compose_sse2_store(REG_a,"xmm0","xmm2","xmm4","xmm6")
"2: \n\t"
"sub $16, %%"REG_d" \n\t"
"jge 1b \n\t"
:"+d"(i)
:
"m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5):
"%"REG_a"","%"REG_b"","%"REG_c"");
}
#define snow_vertical_compose_mmx_load_add(op,r,t0,t1,t2,t3)\
""op" (%%"r",%%"REG_d",4), %%"t0" \n\t"\
""op" 8(%%"r",%%"REG_d",4), %%"t1" \n\t"\
""op" 16(%%"r",%%"REG_d",4), %%"t2" \n\t"\
""op" 24(%%"r",%%"REG_d",4), %%"t3" \n\t"
#define snow_vertical_compose_mmx_load(r,t0,t1,t2,t3)\
snow_vertical_compose_mmx_load_add("movq",r,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_add(r,t0,t1,t2,t3)\
snow_vertical_compose_mmx_load_add("paddd",r,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_sub(s0,s1,s2,s3,t0,t1,t2,t3)\
snow_vertical_compose_sse2_sub(s0,s1,s2,s3,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_store(w,s0,s1,s2,s3)\
"movq %%"s0", (%%"w",%%"REG_d",4) \n\t"\
"movq %%"s1", 8(%%"w",%%"REG_d",4) \n\t"\
"movq %%"s2", 16(%%"w",%%"REG_d",4) \n\t"\
"movq %%"s3", 24(%%"w",%%"REG_d",4) \n\t"
#define snow_vertical_compose_mmx_sra(n,t0,t1,t2,t3)\
snow_vertical_compose_sse2_sra(n,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)\
snow_vertical_compose_sse2_r2r_add(s0,s1,s2,s3,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_sll(n,t0,t1,t2,t3)\
snow_vertical_compose_sse2_sll(n,t0,t1,t2,t3)
#define snow_vertical_compose_mmx_move(s0,s1,s2,s3,t0,t1,t2,t3)\
"movq %%"s0", %%"t0" \n\t"\
"movq %%"s1", %%"t1" \n\t"\
"movq %%"s2", %%"t2" \n\t"\
"movq %%"s3", %%"t3" \n\t"
void ff_snow_vertical_compose97i_mmx(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){
long i = width;
while(i & 0x7)
{
i--;
b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
}
asm volatile(
"jmp 2f \n\t"
"1: \n\t"
"mov %6, %%"REG_a" \n\t"
"mov %4, %%"REG_b" \n\t"
snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_sll("1","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
"pcmpeqd %%mm1, %%mm1 \n\t"
"pslld $31, %%mm1 \n\t"
"psrld $29, %%mm1 \n\t"
"mov %5, %%"REG_a" \n\t"
snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_sra("3","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_load(REG_a,"mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_sub("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_store(REG_a,"mm1","mm3","mm5","mm7")
"mov %3, %%"REG_c" \n\t"
snow_vertical_compose_mmx_load(REG_b,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add(REG_c,"mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_store(REG_b,"mm0","mm2","mm4","mm6")
"mov %2, %%"REG_a" \n\t"
snow_vertical_compose_mmx_load(REG_c,"mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_sll("2","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
"pcmpeqd %%mm1, %%mm1 \n\t"
"pslld $31, %%mm1 \n\t"
"psrld $28, %%mm1 \n\t"
"mov %1, %%"REG_b" \n\t"
snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_sra("4","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add(REG_c,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_store(REG_c,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add(REG_b,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7")
snow_vertical_compose_mmx_sll("1","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_sra("1","mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6")
snow_vertical_compose_mmx_store(REG_a,"mm0","mm2","mm4","mm6")
"2: \n\t"
"sub $8, %%"REG_d" \n\t"
"jge 1b \n\t"
:"+d"(i)
:
"m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5):
"%"REG_a"","%"REG_b"","%"REG_c"");
}
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