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Optimization of MP3 decoders for MIPS

Browse Source 
MP3 fixed and floating point decoders are optimized
 for MIPS architecture.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Reviewed-by: Vitor Sessak <vitor1001@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
pull/59/head
Nedeljko Babic 13 years ago committed by Michael Niedermayer
parent 4ea705114c
commit 6d74e3c6f2
8 changed files with 2591 additions and 0 deletions
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  1. 2
      libavcodec/mips/Makefile
  2. 246
      libavcodec/mips/compute_antialias_fixed.h
  3. 182
      libavcodec/mips/compute_antialias_float.h
  4. 903
      libavcodec/mips/mpegaudiodsp_mips_fixed.c
  5. 1242
      libavcodec/mips/mpegaudiodsp_mips_float.c
  6. 12
      libavcodec/mpegaudiodec.c
  7. 2
      libavcodec/mpegaudiodsp.c
  8. 2
      libavcodec/mpegaudiodsp.h

2
libavcodec/mips/Makefile
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@ -11,3 +11,5 @@ MIPSFPU-OBJS-$(CONFIG_AMRWB_DECODER) += mips/acelp_filters_mips.o \
mips/amrwbdec_mips.o \
mips/celp_math_mips.o \
mips/acelp_vectors_mips.o
MIPSFPU-OBJS-$(CONFIG_MPEGAUDIODSP) += mips/mpegaudiodsp_mips_float.o
MIPSDSPR1-OBJS-$(CONFIG_MPEGAUDIODSP) += mips/mpegaudiodsp_mips_fixed.o

246
libavcodec/mips/compute_antialias_fixed.h
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@ -0,0 +1,246 @@
/*
* Copyright (c) 2012
* MIPS Technologies, Inc., California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Bojan Zivkovic (bojan@mips.com)
*
* Compute antialias function optimised for MIPS fixed-point architecture
*
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Reference: libavcodec/mpegaudiodec.c
*/
#ifndef AVCODEC_MIPS_COMPUTE_ANTIALIAS_FIXED_H
#define AVCODEC_MIPS_COMPUTE_ANTIALIAS_FIXED_H
static void compute_antialias_mips_fixed(MPADecodeContext *s,
GranuleDef *g)
{
int32_t *ptr, *csa;
int n, i;
int MAX_lo = 0xffffffff;
/* we antialias only "long" bands */
if (g->block_type == 2) {
if (!g->switch_point)
return;
/* XXX: check this for 8000Hz case */
n = 1;
} else {
n = SBLIMIT - 1;
}
ptr = g->sb_hybrid + 18;
for(i = n;i > 0;i--) {
int tmp0, tmp1, tmp2, tmp00, tmp11;
int temp_reg1, temp_reg2, temp_reg3, temp_reg4, temp_reg5, temp_reg6;
csa = &csa_table[0][0];
/**
* instructions are scheduled to minimize pipeline stall.
*/
__asm__ __volatile__ (
"lw %[tmp0], -1*4(%[ptr]) \n\t"
"lw %[tmp1], 0*4(%[ptr]) \n\t"
"lw %[temp_reg1], 0*4(%[csa]) \n\t"
"lw %[temp_reg2], 2*4(%[csa]) \n\t"
"add %[tmp2], %[tmp0], %[tmp1] \n\t"
"lw %[temp_reg3], 3*4(%[csa]) \n\t"
"mult $ac0, %[tmp2], %[temp_reg1] \n\t"
"mult $ac1, %[tmp2], %[temp_reg1] \n\t"
"lw %[tmp00], -2*4(%[ptr]) \n\t"
"lw %[tmp11], 1*4(%[ptr]) \n\t"
"lw %[temp_reg4], 4*4(%[csa]) \n\t"
"mtlo %[MAX_lo], $ac0 \n\t"
"mtlo $zero, $ac1 \n\t"
"msub $ac0, %[tmp1], %[temp_reg2] \n\t"
"madd $ac1, %[tmp0], %[temp_reg3] \n\t"
"add %[tmp2], %[tmp00], %[tmp11] \n\t"
"lw %[temp_reg5], 6*4(%[csa]) \n\t"
"mult $ac2, %[tmp2], %[temp_reg4] \n\t"
"mult $ac3, %[tmp2], %[temp_reg4] \n\t"
"mfhi %[temp_reg1], $ac0 \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"lw %[temp_reg6], 7*4(%[csa]) \n\t"
"mtlo %[MAX_lo], $ac2 \n\t"
"msub $ac2, %[tmp11], %[temp_reg5] \n\t"
"mtlo $zero, $ac3 \n\t"
"madd $ac3, %[tmp00], %[temp_reg6] \n\t"
"sll %[temp_reg1], %[temp_reg1], 2 \n\t"
"sw %[temp_reg1], -1*4(%[ptr]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"sll %[temp_reg2], %[temp_reg2], 2 \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"sw %[temp_reg2], 0*4(%[ptr]) \n\t"
"lw %[tmp0], -3*4(%[ptr]) \n\t"
"lw %[tmp1], 2*4(%[ptr]) \n\t"
"lw %[temp_reg1], 8*4(%[csa]) \n\t"
"sll %[temp_reg4], %[temp_reg4], 2 \n\t"
"add %[tmp2], %[tmp0], %[tmp1] \n\t"
"sll %[temp_reg5], %[temp_reg5], 2 \n\t"
"mult $ac0, %[tmp2], %[temp_reg1] \n\t"
"mult $ac1, %[tmp2], %[temp_reg1] \n\t"
"sw %[temp_reg4], -2*4(%[ptr]) \n\t"
"sw %[temp_reg5], 1*4(%[ptr]) \n\t"
"lw %[temp_reg2], 10*4(%[csa]) \n\t"
"mtlo %[MAX_lo], $ac0 \n\t"
"lw %[temp_reg3], 11*4(%[csa]) \n\t"
"msub $ac0, %[tmp1], %[temp_reg2] \n\t"
"mtlo $zero, $ac1 \n\t"
"madd $ac1, %[tmp0], %[temp_reg3] \n\t"
"lw %[tmp00], -4*4(%[ptr]) \n\t"
"lw %[tmp11], 3*4(%[ptr]) \n\t"
"mfhi %[temp_reg1], $ac0 \n\t"
"lw %[temp_reg4], 12*4(%[csa]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"add %[tmp2], %[tmp00], %[tmp11] \n\t"
"mult $ac2, %[tmp2], %[temp_reg4] \n\t"
"mult $ac3, %[tmp2], %[temp_reg4] \n\t"
"lw %[temp_reg5], 14*4(%[csa]) \n\t"
"lw %[temp_reg6], 15*4(%[csa]) \n\t"
"sll %[temp_reg1], %[temp_reg1], 2 \n\t"
"mtlo %[MAX_lo], $ac2 \n\t"
"msub $ac2, %[tmp11], %[temp_reg5] \n\t"
"mtlo $zero, $ac3 \n\t"
"madd $ac3, %[tmp00], %[temp_reg6] \n\t"
"sll %[temp_reg2], %[temp_reg2], 2 \n\t"
"sw %[temp_reg1], -3*4(%[ptr]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"sw %[temp_reg2], 2*4(%[ptr]) \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"lw %[tmp0], -5*4(%[ptr]) \n\t"
"lw %[tmp1], 4*4(%[ptr]) \n\t"
"lw %[temp_reg1], 16*4(%[csa]) \n\t"
"lw %[temp_reg2], 18*4(%[csa]) \n\t"
"add %[tmp2], %[tmp0], %[tmp1] \n\t"
"lw %[temp_reg3], 19*4(%[csa]) \n\t"
"mult $ac0, %[tmp2], %[temp_reg1] \n\t"
"mult $ac1, %[tmp2], %[temp_reg1] \n\t"
"sll %[temp_reg4], %[temp_reg4], 2 \n\t"
"sll %[temp_reg5], %[temp_reg5], 2 \n\t"
"sw %[temp_reg4], -4*4(%[ptr]) \n\t"
"mtlo %[MAX_lo], $ac0 \n\t"
"msub $ac0, %[tmp1], %[temp_reg2] \n\t"
"mtlo $zero, $ac1 \n\t"
"madd $ac1, %[tmp0], %[temp_reg3] \n\t"
"sw %[temp_reg5], 3*4(%[ptr]) \n\t"
"lw %[tmp00], -6*4(%[ptr]) \n\t"
"mfhi %[temp_reg1], $ac0 \n\t"
"lw %[tmp11], 5*4(%[ptr]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"lw %[temp_reg4], 20*4(%[csa]) \n\t"
"add %[tmp2], %[tmp00], %[tmp11] \n\t"
"lw %[temp_reg5], 22*4(%[csa]) \n\t"
"mult $ac2, %[tmp2], %[temp_reg4] \n\t"
"mult $ac3, %[tmp2], %[temp_reg4] \n\t"
"lw %[temp_reg6], 23*4(%[csa]) \n\t"
"sll %[temp_reg1], %[temp_reg1], 2 \n\t"
"sll %[temp_reg2], %[temp_reg2], 2 \n\t"
"mtlo %[MAX_lo], $ac2 \n\t"
"msub $ac2, %[tmp11], %[temp_reg5] \n\t"
"mtlo $zero, $ac3 \n\t"
"madd $ac3, %[tmp00], %[temp_reg6] \n\t"
"sw %[temp_reg1], -5*4(%[ptr]) \n\t"
"sw %[temp_reg2], 4*4(%[ptr]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"lw %[tmp0], -7*4(%[ptr]) \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"lw %[tmp1], 6*4(%[ptr]) \n\t"
"lw %[temp_reg1], 24*4(%[csa]) \n\t"
"lw %[temp_reg2], 26*4(%[csa]) \n\t"
"add %[tmp2], %[tmp0], %[tmp1] \n\t"
"lw %[temp_reg3], 27*4(%[csa]) \n\t"
"mult $ac0, %[tmp2], %[temp_reg1] \n\t"
"mult $ac1, %[tmp2], %[temp_reg1] \n\t"
"sll %[temp_reg4], %[temp_reg4], 2 \n\t"
"sll %[temp_reg5], %[temp_reg5], 2 \n\t"
"sw %[temp_reg4], -6*4(%[ptr]) \n\t"
"mtlo %[MAX_lo], $ac0 \n\t"
"msub $ac0, %[tmp1], %[temp_reg2] \n\t"
"mtlo $zero, $ac1 \n\t"
"madd $ac1, %[tmp0], %[temp_reg3] \n\t"
"sw %[temp_reg5], 5*4(%[ptr]) \n\t"
"lw %[tmp00], -8*4(%[ptr]) \n\t"
"mfhi %[temp_reg1], $ac0 \n\t"
"lw %[tmp11], 7*4(%[ptr]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"lw %[temp_reg4], 28*4(%[csa]) \n\t"
"add %[tmp2], %[tmp00], %[tmp11] \n\t"
"lw %[temp_reg5], 30*4(%[csa]) \n\t"
"mult $ac2, %[tmp2], %[temp_reg4] \n\t"
"mult $ac3, %[tmp2], %[temp_reg4] \n\t"
"lw %[temp_reg6], 31*4(%[csa]) \n\t"
"sll %[temp_reg1], %[temp_reg1], 2 \n\t"
"sll %[temp_reg2], %[temp_reg2], 2 \n\t"
"mtlo %[MAX_lo], $ac2 \n\t"
"msub $ac2, %[tmp11], %[temp_reg5] \n\t"
"mtlo $zero, $ac3 \n\t"
"madd $ac3, %[tmp00], %[temp_reg6] \n\t"
"sw %[temp_reg1], -7*4(%[ptr]) \n\t"
"sw %[temp_reg2], 6*4(%[ptr]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"sll %[temp_reg4], %[temp_reg4], 2 \n\t"
"sll %[temp_reg5], %[temp_reg5], 2 \n\t"
"sw %[temp_reg4], -8*4(%[ptr]) \n\t"
"sw %[temp_reg5], 7*4(%[ptr]) \n\t"
: [tmp0] "=&r" (tmp0), [tmp1] "=&r" (tmp1), [tmp2] "=&r" (tmp2),
[tmp00] "=&r" (tmp00), [tmp11] "=&r" (tmp11),
[temp_reg1] "=&r" (temp_reg1), [temp_reg2] "=&r" (temp_reg2),
[temp_reg3] "=&r" (temp_reg3), [temp_reg4] "=&r" (temp_reg4),
[temp_reg5] "=&r" (temp_reg5), [temp_reg6] "=&r" (temp_reg6)
: [csa] "r" (csa), [ptr] "r" (ptr),
[MAX_lo] "r" (MAX_lo)
);
ptr += 18;
}
}
#define compute_antialias compute_antialias_mips_fixed
#endif /* AVCODEC_MIPS_COMPUTE_ANTIALIAS_FIXED_H */

182
libavcodec/mips/compute_antialias_float.h
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@ -0,0 +1,182 @@
/*
* Copyright (c) 2012
* MIPS Technologies, Inc., California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Bojan Zivkovic (bojan@mips.com)
*
* Compute antialias function optimised for MIPS floating-point architecture
*
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Reference: libavcodec/mpegaudiodec.c
*/
#ifndef AVCODEC_MIPS_COMPUTE_ANTIALIAS_FLOAT_H
#define AVCODEC_MIPS_COMPUTE_ANTIALIAS_FLOAT_H
static void compute_antialias_mips_float(MPADecodeContext *s,
GranuleDef *g)
{
float *ptr, *ptr_end;
float *csa = &csa_table[0][0];
int n;
/* temporary variables */
float in1, in2, in3, in4, in5, in6, in7, in8;
float out1, out2, out3, out4;
ptr = g->sb_hybrid + 18;
/* we antialias only "long" bands */
if (g->block_type == 2) {
if (!g->switch_point)
return;
/* XXX: check this for 8000Hz case */
n = 1;
ptr_end = ptr + 18;
} else {
n = 31;
ptr_end = ptr + 558;
}
/**
* instructions are scheduled to minimize pipeline stall.
*/
__asm__ __volatile__ (
"compute_antialias_float_loop%=: \t\n"
"lwc1 %[in1], -1*4(%[ptr]) \t\n"
"lwc1 %[in2], 0(%[csa]) \t\n"
"lwc1 %[in3], 1*4(%[csa]) \t\n"
"lwc1 %[in4], 0(%[ptr]) \t\n"
"lwc1 %[in5], -2*4(%[ptr]) \t\n"
"lwc1 %[in6], 4*4(%[csa]) \t\n"
"mul.s %[out1], %[in1], %[in2] \t\n"
"mul.s %[out2], %[in1], %[in3] \t\n"
"lwc1 %[in7], 5*4(%[csa]) \t\n"
"lwc1 %[in8], 1*4(%[ptr]) \t\n"
"nmsub.s %[out1], %[out1], %[in3], %[in4] \t\n"
"madd.s %[out2], %[out2], %[in2], %[in4] \t\n"
"mul.s %[out3], %[in5], %[in6] \t\n"
"mul.s %[out4], %[in5], %[in7] \t\n"
"lwc1 %[in1], -3*4(%[ptr]) \t\n"
"swc1 %[out1], -1*4(%[ptr]) \t\n"
"swc1 %[out2], 0(%[ptr]) \t\n"
"nmsub.s %[out3], %[out3], %[in7], %[in8] \t\n"
"madd.s %[out4], %[out4], %[in6], %[in8] \t\n"
"lwc1 %[in2], 8*4(%[csa]) \t\n"
"swc1 %[out3], -2*4(%[ptr]) \t\n"
"swc1 %[out4], 1*4(%[ptr]) \t\n"
"lwc1 %[in3], 9*4(%[csa]) \t\n"
"lwc1 %[in4], 2*4(%[ptr]) \t\n"
"mul.s %[out1], %[in1], %[in2] \t\n"
"lwc1 %[in5], -4*4(%[ptr]) \t\n"
"lwc1 %[in6], 12*4(%[csa]) \t\n"
"mul.s %[out2], %[in1], %[in3] \t\n"
"lwc1 %[in7], 13*4(%[csa]) \t\n"
"nmsub.s %[out1], %[out1], %[in3], %[in4] \t\n"
"lwc1 %[in8], 3*4(%[ptr]) \t\n"
"mul.s %[out3], %[in5], %[in6] \t\n"
"madd.s %[out2], %[out2], %[in2], %[in4] \t\n"
"mul.s %[out4], %[in5], %[in7] \t\n"
"swc1 %[out1], -3*4(%[ptr]) \t\n"
"lwc1 %[in1], -5*4(%[ptr]) \t\n"
"nmsub.s %[out3], %[out3], %[in7], %[in8] \t\n"
"swc1 %[out2], 2*4(%[ptr]) \t\n"
"madd.s %[out4], %[out4], %[in6], %[in8] \t\n"
"lwc1 %[in2], 16*4(%[csa]) \t\n"
"lwc1 %[in3], 17*4(%[csa]) \t\n"
"swc1 %[out3], -4*4(%[ptr]) \t\n"
"lwc1 %[in4], 4*4(%[ptr]) \t\n"
"swc1 %[out4], 3*4(%[ptr]) \t\n"
"mul.s %[out1], %[in1], %[in2] \t\n"
"mul.s %[out2], %[in1], %[in3] \t\n"
"lwc1 %[in5], -6*4(%[ptr]) \t\n"
"lwc1 %[in6], 20*4(%[csa]) \t\n"
"lwc1 %[in7], 21*4(%[csa]) \t\n"
"nmsub.s %[out1], %[out1], %[in3], %[in4] \t\n"
"madd.s %[out2], %[out2], %[in2], %[in4] \t\n"
"lwc1 %[in8], 5*4(%[ptr]) \t\n"
"mul.s %[out3], %[in5], %[in6] \t\n"
"mul.s %[out4], %[in5], %[in7] \t\n"
"swc1 %[out1], -5*4(%[ptr]) \t\n"
"swc1 %[out2], 4*4(%[ptr]) \t\n"
"lwc1 %[in1], -7*4(%[ptr]) \t\n"
"nmsub.s %[out3], %[out3], %[in7], %[in8] \t\n"
"madd.s %[out4], %[out4], %[in6], %[in8] \t\n"
"lwc1 %[in2], 24*4(%[csa]) \t\n"
"lwc1 %[in3], 25*4(%[csa]) \t\n"
"lwc1 %[in4], 6*4(%[ptr]) \t\n"
"swc1 %[out3], -6*4(%[ptr]) \t\n"
"swc1 %[out4], 5*4(%[ptr]) \t\n"
"mul.s %[out1], %[in1], %[in2] \t\n"
"lwc1 %[in5], -8*4(%[ptr]) \t\n"
"mul.s %[out2], %[in1], %[in3] \t\n"
"lwc1 %[in6], 28*4(%[csa]) \t\n"
"lwc1 %[in7], 29*4(%[csa]) \t\n"
"nmsub.s %[out1], %[out1], %[in3], %[in4] \t\n"
"lwc1 %[in8], 7*4(%[ptr]) \t\n"
"madd.s %[out2], %[out2], %[in2], %[in4] \t\n"
"mul.s %[out3], %[in5], %[in6] \t\n"
"mul.s %[out4], %[in5], %[in7] \t\n"
"swc1 %[out1], -7*4(%[ptr]) \t\n"
"swc1 %[out2], 6*4(%[ptr]) \t\n"
"addiu %[ptr], %[ptr], 72 \t\n"
"nmsub.s %[out3], %[out3], %[in7], %[in8] \t\n"
"madd.s %[out4], %[out4], %[in6], %[in8] \t\n"
"swc1 %[out3], -26*4(%[ptr]) \t\n"
"swc1 %[out4], -11*4(%[ptr]) \t\n"
"bne %[ptr], %[ptr_end], compute_antialias_float_loop%= \t\n"
: [ptr] "+r" (ptr),
[in1] "=&f" (in1), [in2] "=&f" (in2),
[in3] "=&f" (in3), [in4] "=&f" (in4),
[in5] "=&f" (in5), [in6] "=&f" (in6),
[in7] "=&f" (in7), [in8] "=&f" (in8),
[out1] "=&f" (out1), [out2] "=&f" (out2),
[out3] "=&f" (out3), [out4] "=&f" (out4)
: [csa] "r" (csa), [ptr_end] "r" (ptr_end)
);
}
#define compute_antialias compute_antialias_mips_float
#endif /* AVCODEC_MIPS_COMPUTE_ANTIALIAS_FLOAT_H */

903
libavcodec/mips/mpegaudiodsp_mips_fixed.c
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/*
* Copyright (c) 2012
* MIPS Technologies, Inc., California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Bojan Zivkovic (bojan@mips.com)
*
* MPEG Audio decoder optimized for MIPS fixed-point architecture
*
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Reference: libavcodec/mpegaudiodsp_template.c
*/
#include <string.h>
#include "libavcodec/mpegaudiodsp.h"
static void ff_mpadsp_apply_window_mips_fixed(int32_t *synth_buf, int32_t *window,
int *dither_state, int16_t *samples, int incr)
{
register const int32_t *w, *w2, *p;
int j;
int16_t *samples2;
int w_asm, p_asm, w_asm1, p_asm1, w_asm2, p_asm2;
int w2_asm, w2_asm1, *p_temp1, *p_temp2;
int sum1 = 0;
int const min_asm = -32768, max_asm = 32767;
int temp1, temp2 = 0, temp3 = 0;
int64_t sum;
/* copy to avoid wrap */
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
p_temp1 = synth_buf + 16;
p_temp2 = synth_buf + 48;
temp1 = sum;
/**
* use of round_sample function from the original code is eliminated,
* changed with appropriate assembly instructions.
*/
__asm__ __volatile__ (
"mthi $zero \n\t"
"mtlo %[temp1] \n\t"
"lw %[w_asm], 0(%[w]) \n\t"
"lw %[p_asm], 0(%[p]) \n\t"
"lw %[w_asm1], 64*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p]) \n\t"
"lw %[w_asm2], 128*4(%[w]) \n\t"
"lw %[p_asm2], 128*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"madd %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 192*4(%[w]) \n\t"
"lw %[p_asm], 192*4(%[p]) \n\t"
"lw %[w_asm1], 256*4(%[w]) \n\t"
"lw %[p_asm1], 256*4(%[p]) \n\t"
"lw %[w_asm2], 320*4(%[w]) \n\t"
"lw %[p_asm2], 320*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"madd %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 384*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p]) \n\t"
"lw %[w_asm1], 448*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p]) \n\t"
"lw %[w_asm2], 32*4(%[w]) \n\t"
"lw %[p_asm2], 32*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 96*4(%[w]) \n\t"
"lw %[p_asm], 96*4(%[p]) \n\t"
"lw %[w_asm1], 160*4(%[w]) \n\t"
"lw %[p_asm1], 160*4(%[p]) \n\t"
"lw %[w_asm2], 224*4(%[w]) \n\t"
"lw %[p_asm2], 224*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 288*4(%[w]) \n\t"
"lw %[p_asm], 288*4(%[p]) \n\t"
"lw %[w_asm1], 352*4(%[w]) \n\t"
"lw %[p_asm1], 352*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"lw %[w_asm], 480*4(%[w]) \n\t"
"lw %[p_asm], 480*4(%[p]) \n\t"
"lw %[w_asm2], 416*4(%[w]) \n\t"
"lw %[p_asm2], 416*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
/*round_sample function from the original code is eliminated,
* changed with appropriate assembly instructions
* code example:
"extr.w %[sum1],$ac0,24 \n\t"
"mflo %[temp3], $ac0 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm],%[temp2] \n\t"
"slt %[temp2], %[max_asm],%[sum1] \n\t"
"movn %[sum1], %[max_asm],%[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
*/
"extr.w %[sum1], $ac0, 24 \n\t"
"mflo %[temp3] \n\t"
"addi %[w], %[w], 4 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[w_asm2] "=&r" (w_asm2), [p_asm2] "=&r" (p_asm2),
[sum1] "+r" (sum1), [w] "+r" (w), [temp3] "+r" (temp3)
: [p] "r" (p), [samples] "r" (samples), [min_asm] "r" (min_asm),
[max_asm] "r" (max_asm)
: "hi","lo"
);
samples += incr;
/* we calculate two samples at the same time to avoid one memory
access per two sample */
for(j = 1; j < 16; j++) {
__asm__ __volatile__ (
"mthi $0, $ac1 \n\t"
"mtlo $0, $ac1 \n\t"
"mthi $0 \n\t"
"mtlo %[temp1] \n\t"
"addi %[p_temp1], %[p_temp1], 4 \n\t"
"lw %[w_asm], 0(%[w]) \n\t"
"lw %[p_asm], 0(%[p_temp1]) \n\t"
"lw %[w2_asm], 0(%[w2]) \n\t"
"lw %[w_asm1], 64*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 64*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 128*4(%[w]) \n\t"
"lw %[p_asm], 128*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 128*4(%[w2]) \n\t"
"lw %[w_asm1], 192*4(%[w]) \n\t"
"lw %[p_asm1], 192*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 192*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 256*4(%[w]) \n\t"
"lw %[p_asm], 256*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 256*4(%[w2]) \n\t"
"lw %[w_asm1], 320*4(%[w]) \n\t"
"lw %[p_asm1], 320*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 320*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 384*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 384*4(%[w2]) \n\t"
"lw %[w_asm1], 448*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 448*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"addi %[p_temp2], %[p_temp2], -4 \n\t"
"lw %[w_asm], 32*4(%[w]) \n\t"
"lw %[p_asm], 0(%[p_temp2]) \n\t"
"lw %[w2_asm], 32*4(%[w2]) \n\t"
"lw %[w_asm1], 96*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 96*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 160*4(%[w]) \n\t"
"lw %[p_asm], 128*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 160*4(%[w2]) \n\t"
"lw %[w_asm1], 224*4(%[w]) \n\t"
"lw %[p_asm1], 192*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 224*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 288*4(%[w]) \n\t"
"lw %[p_asm], 256*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 288*4(%[w2]) \n\t"
"lw %[w_asm1], 352*4(%[w]) \n\t"
"lw %[p_asm1], 320*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 352*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 416*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 416*4(%[w2]) \n\t"
"lw %[w_asm1], 480*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 480*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"addi %[w], %[w], 4 \n\t"
"addi %[w2], %[w2], -4 \n\t"
"mflo %[temp2] \n\t"
"extr.w %[sum1], $ac0, 24 \n\t"
"li %[temp3], 1 \n\t"
"and %[temp1], %[temp2], 0x00ffffff \n\t"
"madd $ac1, %[temp1], %[temp3] \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
"mflo %[temp3], $ac1 \n\t"
"extr.w %[sum1], $ac1, 24 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples2]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [w2_asm1] "=&r" (w2_asm1),
[w2_asm] "=&r" (w2_asm), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[p_temp1] "+r" (p_temp1), [p_temp2] "+r" (p_temp2), [sum1] "+r" (sum1),
[w] "+r" (w), [w2] "+r" (w2), [samples] "+r" (samples),
[samples2] "+r" (samples2), [temp3] "+r" (temp3)
: [min_asm] "r" (min_asm), [max_asm] "r" (max_asm)
: "hi", "lo"
);
samples += incr;
samples2 -= incr;
}
p = synth_buf + 32;
__asm__ __volatile__ (
"mthi $0 \n\t"
"mtlo %[temp1] \n\t"
"lw %[w_asm], 32*4(%[w]) \n\t"
"lw %[p_asm], 0(%[p]) \n\t"
"lw %[w_asm1], 96*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p]) \n\t"
"lw %[w_asm2], 160*4(%[w]) \n\t"
"lw %[p_asm2], 128*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 224*4(%[w]) \n\t"
"lw %[p_asm], 192*4(%[p]) \n\t"
"lw %[w_asm1], 288*4(%[w]) \n\t"
"lw %[p_asm1], 256*4(%[p]) \n\t"
"lw %[w_asm2], 352*4(%[w]) \n\t"
"lw %[p_asm2], 320*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 416*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p]) \n\t"
"lw %[w_asm1], 480*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"extr.w %[sum1], $ac0, 24 \n\t"
"mflo %[temp2] \n\t"
"and %[temp1], %[temp2], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[w_asm2] "=&r" (w_asm2), [p_asm2] "=&r" (p_asm2), [sum1] "+r" (sum1)
: [w] "r" (w), [p] "r" (p), [samples] "r" (samples), [min_asm] "r" (min_asm),
[max_asm] "r" (max_asm)
: "hi", "lo"
);
*dither_state= temp1;
}
static void imdct36_mips_fixed(int *out, int *buf, int *in, int *win)
{
int j;
int t0, t1, t2, t3, s0, s1, s2, s3;
int tmp[18], *tmp1, *in1;
/* temporary variables */
int temp_reg1, temp_reg2, temp_reg3, temp_reg4, temp_reg5, temp_reg6;
int t4, t5, t6, t8, t7;
/* values defined in macros and tables are
* eliminated - they are directly loaded in appropriate variables
*/
int const C_1 = 4229717092; /* cos(pi*1/18)*2 */
int const C_2 = 4035949074; /* cos(pi*2/18)*2 */
int const C_3 = 575416510; /* -cos(pi*3/18)*2 */
int const C_3A = 3719550786; /* cos(pi*3/18)*2 */
int const C_4 = 1004831466; /* -cos(pi*4/18)*2 */
int const C_5 = 1534215534; /* -cos(pi*5/18)*2 */
int const C_7 = -1468965330; /* -cos(pi*7/18)*2 */
int const C_8 = -745813244; /* -cos(pi*8/18)*2 */
/*
* instructions of the first two loops are reorganized and loops are unrolled,
* in order to eliminate unnecessary readings and writings in array
*/
__asm__ __volatile__ (
"lw %[t1], 17*4(%[in]) \n\t"
"lw %[t2], 16*4(%[in]) \n\t"
"lw %[t3], 15*4(%[in]) \n\t"
"lw %[t4], 14*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"addu %[t2], %[t2], %[t3] \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"lw %[t5], 13*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t3] \n\t"
"sw %[t2], 16*4(%[in]) \n\t"
"lw %[t6], 12*4(%[in]) \n\t"
"sw %[t1], 17*4(%[in]) \n\t"
"addu %[t4], %[t4], %[t5] \n\t"
"addu %[t5], %[t5], %[t6] \n\t"
"lw %[t7], 11*4(%[in]) \n\t"
"addu %[t3], %[t3], %[t5] \n\t"
"sw %[t4], 14*4(%[in]) \n\t"
"lw %[t8], 10*4(%[in]) \n\t"
"sw %[t3], 15*4(%[in]) \n\t"
"addu %[t6], %[t6], %[t7] \n\t"
"addu %[t7], %[t7], %[t8] \n\t"
"sw %[t6], 12*4(%[in]) \n\t"
"addu %[t5], %[t5], %[t7] \n\t"
"lw %[t1], 9*4(%[in]) \n\t"
"lw %[t2], 8*4(%[in]) \n\t"
"sw %[t5], 13*4(%[in]) \n\t"
"addu %[t8], %[t8], %[t1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t8], 10*4(%[in]) \n\t"
"addu %[t7], %[t7], %[t1] \n\t"
"lw %[t3], 7*4(%[in]) \n\t"
"lw %[t4], 6*4(%[in]) \n\t"
"sw %[t7], 11*4(%[in]) \n\t"
"addu %[t2], %[t2], %[t3] \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"sw %[t2], 8*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t3] \n\t"
"lw %[t5], 5*4(%[in]) \n\t"
"lw %[t6], 4*4(%[in]) \n\t"
"sw %[t1], 9*4(%[in]) \n\t"
"addu %[t4], %[t4], %[t5] \n\t"
"addu %[t5], %[t5], %[t6] \n\t"
"sw %[t4], 6*4(%[in]) \n\t"
"addu %[t3], %[t3], %[t5] \n\t"
"lw %[t7], 3*4(%[in]) \n\t"
"lw %[t8], 2*4(%[in]) \n\t"
"sw %[t3], 7*4(%[in]) \n\t"
"addu %[t6], %[t6], %[t7] \n\t"
"addu %[t7], %[t7], %[t8] \n\t"
"sw %[t6], 4*4(%[in]) \n\t"
"addu %[t5], %[t5], %[t7] \n\t"
"lw %[t1], 1*4(%[in]) \n\t"
"lw %[t2], 0*4(%[in]) \n\t"
"sw %[t5], 5*4(%[in]) \n\t"
"addu %[t8], %[t8], %[t1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t8], 2*4(%[in]) \n\t"
"addu %[t7], %[t7], %[t1] \n\t"
"sw %[t7], 3*4(%[in]) \n\t"
"sw %[t1], 1*4(%[in]) \n\t"
: [in] "+r" (in), [t1] "=&r" (t1), [t2] "=&r" (t2), [t3] "=&r" (t3),
[t4] "=&r" (t4), [t5] "=&r" (t5), [t6] "=&r" (t6),
[t7] "=&r" (t7), [t8] "=&r" (t8)
);
for(j = 0; j < 2; j++) {
tmp1 = tmp + j;
in1 = in + j;
/**
* Original constants are multiplied by two in advanced
* for assembly optimization (e.g. C_2 = 2 * C2).
* That can lead to overflow in operations where they are used.
*
* Example of the solution:
*
* in original code:
* t0 = ((int64_t)(in1[2*2] + in1[2*4]) * (int64_t)(2*C2))>>32
*
* in assembly:
* C_2 = 2 * C2;
* .
* .
* "lw %[t7], 4*4(%[in1]) \n\t"
* "lw %[t8], 8*4(%[in1]) \n\t"
* "addu %[temp_reg2],%[t7], %[t8] \n\t"
* "multu %[C_2], %[temp_reg2] \n\t"
* "mfhi %[temp_reg1] \n\t"
* "sra %[temp_reg2],%[temp_reg2],31 \n\t"
* "move %[t0], $0 \n\t"
* "movn %[t0], %[C_2], %[temp_reg2] \n\t"
* "sub %[t0], %[temp_reg1],%[t0] \n\t"
*/
__asm__ __volatile__ (
"lw %[t7], 4*4(%[in1]) \n\t"
"lw %[t8], 8*4(%[in1]) \n\t"
"lw %[t6], 16*4(%[in1]) \n\t"
"lw %[t4], 0*4(%[in1]) \n\t"
"addu %[temp_reg2], %[t7], %[t8] \n\t"
"addu %[t2], %[t6], %[t8] \n\t"
"multu %[C_2], %[temp_reg2] \n\t"
"lw %[t5], 12*4(%[in1]) \n\t"
"sub %[t2], %[t2], %[t7] \n\t"
"sub %[t1], %[t4], %[t5] \n\t"
"sra %[t3], %[t5], 1 \n\t"
"sra %[temp_reg1], %[t2], 1 \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"sub %[temp_reg1], %[t1], %[temp_reg1] \n\t"
"sra %[temp_reg2], %[temp_reg2], 31 \n\t"
"sw %[temp_reg1], 6*4(%[tmp1]) \n\t"
"move %[t0], $0 \n\t"
"movn %[t0], %[C_2], %[temp_reg2] \n\t"
"mfhi %[temp_reg1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t1], 16*4(%[tmp1]) \n\t"
"sub %[temp_reg4], %[t8], %[t6] \n\t"
"add %[temp_reg2], %[t7], %[t6] \n\t"
"mult $ac1, %[C_8], %[temp_reg4] \n\t"
"multu $ac2, %[C_4], %[temp_reg2] \n\t"
"sub %[t0], %[temp_reg1], %[t0] \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"move %[t2], $0 \n\t"
"movn %[t2], %[C_4], %[temp_reg1] \n\t"
"mfhi %[t1], $ac1 \n\t"
"mfhi %[temp_reg1], $ac2 \n\t"
"lw %[t6], 10*4(%[in1]) \n\t"
"lw %[t8], 14*4(%[in1]) \n\t"
"lw %[t7], 2*4(%[in1]) \n\t"
"lw %[t4], 6*4(%[in1]) \n\t"
"sub %[temp_reg3], %[t3], %[t0] \n\t"
"add %[temp_reg4], %[t3], %[t0] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"add %[temp_reg4], %[temp_reg4], %[t1] \n\t"
"sub %[t2], %[temp_reg1], %[t2] \n\t"
"sw %[temp_reg4], 2*4(%[tmp1]) \n\t"
"sub %[temp_reg3], %[temp_reg3], %[t2] \n\t"
"add %[temp_reg1], %[t3], %[t2] \n\t"
"sw %[temp_reg3], 10*4(%[tmp1]) \n\t"
"sub %[temp_reg1], %[temp_reg1], %[t1] \n\t"
"addu %[temp_reg2], %[t6], %[t8] \n\t"
"sw %[temp_reg1], 14*4(%[tmp1]) \n\t"
"sub %[temp_reg2], %[temp_reg2], %[t7] \n\t"
"addu %[temp_reg3], %[t7], %[t6] \n\t"
"multu $ac3, %[C_3], %[temp_reg2] \n\t"
"multu %[C_1], %[temp_reg3] \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"move %[t1], $0 \n\t"
"sra %[temp_reg3], %[temp_reg3], 31 \n\t"
"movn %[t1], %[C_3], %[temp_reg1] \n\t"
"mfhi %[temp_reg1], $ac3 \n\t"
"mfhi %[temp_reg4] \n\t"
"move %[t2], $0 \n\t"
"movn %[t2], %[C_1], %[temp_reg3] \n\t"
"sub %[temp_reg3], %[t6], %[t8] \n\t"
"sub %[t2], %[temp_reg4], %[t2] \n\t"
"multu $ac1, %[C_7], %[temp_reg3] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sra %[temp_reg4], %[temp_reg3], 31 \n\t"
"sub %[t1], %[temp_reg1], %[t1] \n\t"
"move %[t3], $0 \n\t"
"sw %[t1], 4*4(%[tmp1]) \n\t"
"movn %[t3], %[C_7], %[temp_reg4] \n\t"
"multu $ac2, %[C_3A], %[t4] \n\t"
"add %[temp_reg2], %[t7], %[t8] \n\t"
"move %[t1], $0 \n\t"
"mfhi %[temp_reg4], $ac1 \n\t"
"multu $ac3,%[C_5], %[temp_reg2] \n\t"
"move %[t0], $0 \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"movn %[t1],%[C_5], %[temp_reg1] \n\t"
"sub %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"mfhi %[temp_reg1], $ac3 \n\t"
"sra %[temp_reg3], %[t4], 31 \n\t"
"movn %[t0], %[C_3A], %[temp_reg3] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"sub %[t3], %[temp_reg4], %[t3] \n\t"
"add %[temp_reg4], %[t3], %[t2] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sub %[t1], %[temp_reg1], %[t1] \n\t"
"sub %[t0], %[temp_reg3], %[t0] \n\t"
"add %[temp_reg1], %[t2], %[t1] \n\t"
"add %[temp_reg4], %[temp_reg4], %[t0] \n\t"
"sub %[temp_reg2], %[t3], %[t1] \n\t"
"sw %[temp_reg4], 0*4(%[tmp1]) \n\t"
"sub %[temp_reg1], %[temp_reg1], %[t0] \n\t"
"sub %[temp_reg2], %[temp_reg2], %[t0] \n\t"
"sw %[temp_reg1], 12*4(%[tmp1]) \n\t"
"sw %[temp_reg2], 8*4(%[tmp1]) \n\t"
: [t7] "=&r" (t7), [temp_reg1] "=&r" (temp_reg1),
[temp_reg2] "=&r" (temp_reg2), [temp_reg4] "=&r" (temp_reg4),
[temp_reg3] "=&r" (temp_reg3), [t8] "=&r" (t8), [t0] "=&r" (t0),
[t4] "=&r" (t4), [t5] "=&r" (t5), [t6] "=&r"(t6), [t2] "=&r" (t2),
[t3] "=&r" (t3), [t1] "=&r" (t1)
: [C_2] "r" (C_2), [in1] "r" (in1), [tmp1] "r" (tmp1), [C_8] "r" (C_8),
[C_4] "r" (C_4), [C_3] "r" (C_3), [C_1] "r" (C_1), [C_7] "r" (C_7),
[C_3A] "r" (C_3A), [C_5] "r" (C_5)
: "hi", "lo"
);
}
/**
* loop is unrolled four times
*
* values defined in tables(icos36[] and icos36h[]) are not loaded from
* these tables - they are directly loaded in appropriate registers
*
*/
__asm__ __volatile__ (
"lw %[t2], 1*4(%[tmp]) \n\t"
"lw %[t3], 3*4(%[tmp]) \n\t"
"lw %[t0], 0*4(%[tmp]) \n\t"
"lw %[t1], 2*4(%[tmp]) \n\t"
"addu %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0x807D2B1E \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg2], %[temp_reg1] \n\t"
"sra %[temp_reg1], %[temp_reg1], 31 \n\t"
"movn %[s1], %[temp_reg2], %[temp_reg1] \n\t"
"sub %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x2de5151 \n\t"
"mfhi %[temp_reg2] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"lw %[temp_reg5], 9*4(%[win]) \n\t"
"mult $ac1, %[temp_reg4], %[temp_reg3] \n\t"
"lw %[temp_reg6], 4*9*4(%[buf]) \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"lw %[temp_reg3], 29*4(%[win]) \n\t"
"subu %[s1], %[temp_reg2], %[s1] \n\t"
"lw %[temp_reg4], 28*4(%[win]) \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"extr.w %[s3], $ac1,23 \n\t"
"mult $ac2, %[t0], %[temp_reg3] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"lw %[temp_reg1], 4*8*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg5] \n\t"
"lw %[temp_reg2], 8*4(%[win]) \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mult $ac3, %[t0], %[temp_reg4] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"mfhi %[temp_reg5] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"sw %[temp_reg3], 4*9*4(%[buf]) \n\t"
"mfhi %[temp_reg4], $ac3 \n\t"
"lw %[temp_reg3], 37*4(%[win]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"lw %[temp_reg6], 17*4(%[win]) \n\t"
"sw %[temp_reg5], 32*9*4(%[out]) \n\t"
"sw %[temp_reg4], 4*8*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg6] \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[temp_reg2], 0*4(%[win]) \n\t"
"lw %[temp_reg5], 4*17*4(%[buf]) \n\t"
"sw %[temp_reg1], 8*32*4(%[out]) \n\t"
"mfhi %[temp_reg6] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg4], 20*4(%[win]) \n\t"
"lw %[temp_reg1], 0(%[buf]) \n\t"
"mult $ac2, %[t0], %[temp_reg3] \n\t"
"mult %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"lw %[t0], 4*4(%[tmp]) \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg4] \n\t"
"sw %[temp_reg5], 17*32*4(%[out]) \n\t"
"lw %[t1], 6*4(%[tmp]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[t2], 5*4(%[tmp]) \n\t"
"sw %[temp_reg1], 0*32*4(%[out]) \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"sw %[temp_reg3], 4*17*4(%[buf]) \n\t"
"lw %[t3], 7*4(%[tmp]) \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"sw %[temp_reg4], 0(%[buf]) \n\t"
"addu %[temp_reg5], %[t3], %[t2] \n\t"
"li %[temp_reg6], 0x8483EE0C \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg6], %[temp_reg5] \n\t"
"sub %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0xf746ea \n\t"
"sra %[temp_reg5], %[temp_reg5], 31 \n\t"
"mult $ac1, %[temp_reg2], %[temp_reg1] \n\t"
"movn %[s1], %[temp_reg6], %[temp_reg5] \n\t"
"mfhi %[temp_reg5] \n\t"
"lw %[temp_reg3], 10*4(%[win]) \n\t"
"lw %[temp_reg4], 4*10*4(%[buf]) \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg1], 4*7*4(%[buf]) \n\t"
"lw %[temp_reg2], 7*4(%[win]) \n\t"
"lw %[temp_reg6], 30*4(%[win]) \n\t"
"subu %[s1], %[temp_reg5], %[s1] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac2, %[t1], %[temp_reg3] \n\t"
"mult $ac3, %[t1], %[temp_reg2] \n\t"
"mult %[t0], %[temp_reg6] \n\t"
"lw %[temp_reg5], 27*4(%[win]) \n\t"
"mult $ac1, %[t0], %[temp_reg5] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg2], $ac3 \n\t"
"mfhi %[temp_reg6] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[temp_reg4], 16*4(%[win]) \n\t"
"mfhi %[temp_reg5], $ac1 \n\t"
"sw %[temp_reg3], 32*10*4(%[out]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 4*16*4(%[buf]) \n\t"
"sw %[temp_reg6], 4*10*4(%[buf]) \n\t"
"sw %[temp_reg1], 7*32*4(%[out]) \n\t"
"mult $ac2, %[t1], %[temp_reg4] \n\t"
"sw %[temp_reg5], 4*7*4(%[buf]) \n\t"
"lw %[temp_reg6], 1*4(%[win]) \n\t"
"lw %[temp_reg5], 4*1*4(%[buf]) \n\t"
"lw %[temp_reg1], 36*4(%[win]) \n\t"
"mult $ac3, %[t1], %[temp_reg6] \n\t"
"lw %[temp_reg2], 21*4(%[win]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"mult %[t0], %[temp_reg1] \n\t"
"mult $ac1, %[t0],%[temp_reg2] \n\t"
"lw %[t0], 8*4(%[tmp]) \n\t"
"mfhi %[temp_reg6], $ac3 \n\t"
"lw %[t1], 10*4(%[tmp]) \n\t"
"lw %[t3], 11*4(%[tmp]) \n\t"
"mfhi %[temp_reg1] \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[t2], 9*4(%[tmp]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"sw %[temp_reg3], 16*32*4(%[out]) \n\t"
"sw %[temp_reg5], 1*32*4(%[out]) \n\t"
"sw %[temp_reg1], 4*16*4(%[buf]) \n\t"
"addu %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x8D3B7CD6 \n\t"
"sw %[temp_reg2], 4*1*4(%[buf]) \n\t"
"multu %[temp_reg4],%[temp_reg3] \n\t"
"sra %[temp_reg3], %[temp_reg3], 31 \n\t"
"move %[s1], $0 \n\t"
"movn %[s1], %[temp_reg4], %[temp_reg3] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"mfhi %[temp_reg3] \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"sub %[temp_reg5], %[t3], %[t2] \n\t"
"li %[temp_reg6], 0x976fd9 \n\t"
"lw %[temp_reg2], 11*4(%[win]) \n\t"
"lw %[temp_reg1], 4*11*4(%[buf]) \n\t"
"mult $ac1, %[temp_reg6], %[temp_reg5] \n\t"
"subu %[s1], %[temp_reg3], %[s1] \n\t"
"lw %[temp_reg5], 31*4(%[win]) \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac2, %[t1], %[temp_reg2] \n\t"
"mult %[t0], %[temp_reg5] \n\t"
"lw %[temp_reg4], 6*4(%[win]) \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg3], 4*6*4(%[buf]) \n\t"
"mfhi %[temp_reg2], $ac2 \n\t"
"lw %[temp_reg6], 26*4(%[win]) \n\t"
"mfhi %[temp_reg5] \n\t"
"mult $ac3, %[t1], %[temp_reg4] \n\t"
"mult $ac1, %[t0], %[temp_reg6] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"add %[temp_reg2], %[temp_reg2], %[temp_reg1] \n\t"
"mfhi %[temp_reg4], $ac3 \n\t"
"mfhi %[temp_reg6], $ac1 \n\t"
"sw %[temp_reg5], 4*11*4(%[buf]) \n\t"
"sw %[temp_reg2], 32*11*4(%[out]) \n\t"
"lw %[temp_reg1], 4*15*4(%[buf]) \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[temp_reg2], 15*4(%[win]) \n\t"
"sw %[temp_reg3], 6*32*4(%[out]) \n\t"
"sw %[temp_reg6], 4*6*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 2*4(%[win]) \n\t"
"lw %[temp_reg4], 4*2*4(%[buf]) \n\t"
"lw %[temp_reg5], 35*4(%[win]) \n\t"
"mult $ac1, %[t1], %[temp_reg3] \n\t"
"mfhi %[temp_reg2] \n\t"
"lw %[temp_reg6], 22*4(%[win]) \n\t"
"mult $ac2, %[t0], %[temp_reg5] \n\t"
"lw %[t1], 14*4(%[tmp]) \n\t"
"mult $ac3, %[t0], %[temp_reg6] \n\t"
"lw %[t0], 12*4(%[tmp]) \n\t"
"mfhi %[temp_reg3], $ac1 \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"mfhi %[temp_reg5], $ac2 \n\t"
"sw %[temp_reg1], 15*32*4(%[out]) \n\t"
"mfhi %[temp_reg6], $ac3 \n\t"
"lw %[t2], 13*4(%[tmp]) \n\t"
"lw %[t3], 15*4(%[tmp]) \n\t"
"add %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"sw %[temp_reg5], 4*15*4(%[buf]) \n\t"
"addu %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0x9C42577C \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg2], %[temp_reg1] \n\t"
"sw %[temp_reg4], 2*32*4(%[out]) \n\t"
"sra %[temp_reg1], %[temp_reg1], 31 \n\t"
"movn %[s1], %[temp_reg2], %[temp_reg1] \n\t"
"sub %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x6f94a2 \n\t"
"mfhi %[temp_reg1] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"sw %[temp_reg6], 4*2*4(%[buf]) \n\t"
"mult $ac1, %[temp_reg4], %[temp_reg3] \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"lw %[temp_reg5], 12*4(%[win]) \n\t"
"lw %[temp_reg6], 4*12*4(%[buf]) \n\t"
"subu %[s1], %[temp_reg1], %[s1] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"lw %[temp_reg3], 32*4(%[win]) \n\t"
"mult $ac2, %[t1], %[temp_reg5] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg2], 5*4(%[win]) \n\t"
"mult %[t0], %[temp_reg3] \n\t"
"mfhi %[temp_reg5], $ac2 \n\t"
"lw %[temp_reg4], 25*4(%[win]) \n\t"
"lw %[temp_reg1], 4*5*4(%[buf]) \n\t"
"mult $ac3, %[t1], %[temp_reg2] \n\t"
"mult $ac1, %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg3] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg2], $ac3 \n\t"
"mfhi %[temp_reg4], $ac1 \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"sw %[temp_reg5], 32*12*4(%[out]) \n\t"
"sw %[temp_reg3], 4*12*4(%[buf]) \n\t"
"lw %[temp_reg6], 14*4(%[win]) \n\t"
"lw %[temp_reg5], 4*14*4(%[buf]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sw %[temp_reg4], 4*5*4(%[buf]) \n\t"
"sw %[temp_reg1], 5*32*4(%[out]) \n\t"
"mult %[t1], %[temp_reg6] \n\t"
"lw %[temp_reg4], 34*4(%[win]) \n\t"
"lw %[temp_reg2], 3*4(%[win]) \n\t"
"lw %[temp_reg1], 4*3*4(%[buf]) \n\t"
"mult $ac2, %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg6] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 23*4(%[win]) \n\t"
"lw %[s0], 16*4(%[tmp]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"lw %[t1], 17*4(%[tmp]) \n\t"
"mult $ac3, %[t0], %[temp_reg3] \n\t"
"move %[s1], $0 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"sw %[temp_reg5], 14*32*4(%[out]) \n\t"
"sw %[temp_reg4], 4*14*4(%[buf]) \n\t"
"mfhi %[temp_reg3], $ac3 \n\t"
"li %[temp_reg5], 0xB504F334 \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"multu %[temp_reg5], %[t1] \n\t"
"lw %[temp_reg2], 4*13*4(%[buf]) \n\t"
"sw %[temp_reg1], 3*32*4(%[out]) \n\t"
"sra %[t1], %[t1], 31 \n\t"
"mfhi %[temp_reg6] \n\t"
"movn %[s1], %[temp_reg5], %[t1] \n\t"
"sw %[temp_reg3], 4*3*4(%[buf]) \n\t"
"lw %[temp_reg1], 13*4(%[win]) \n\t"
"lw %[temp_reg4], 4*4*4(%[buf]) \n\t"
"lw %[temp_reg3], 4*4(%[win]) \n\t"
"lw %[temp_reg5], 33*4(%[win]) \n\t"
"subu %[s1], %[temp_reg6], %[s1] \n\t"
"lw %[temp_reg6], 24*4(%[win]) \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac1, %[t1], %[temp_reg1] \n\t"
"mult $ac2, %[t1], %[temp_reg3] \n\t"
"mult $ac3, %[t0], %[temp_reg5] \n\t"
"mult %[t0], %[temp_reg6] \n\t"
"mfhi %[temp_reg1], $ac1 \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"mfhi %[temp_reg6] \n\t"
"add %[temp_reg2], %[temp_reg2], %[temp_reg1] \n\t"
"add %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"sw %[temp_reg2], 13*32*4(%[out]) \n\t"
"sw %[temp_reg4], 4*32*4(%[out]) \n\t"
"sw %[temp_reg5], 4*13*4(%[buf]) \n\t"
"sw %[temp_reg6], 4*4*4(%[buf]) \n\t"
: [t0] "=&r" (t0), [t1] "=&r" (t1), [t2] "=&r" (t2), [t3] "=&r" (t3),
[s0] "=&r" (s0), [s2] "=&r" (s2), [temp_reg1] "=&r" (temp_reg1),
[temp_reg2] "=&r" (temp_reg2), [s1] "=&r" (s1), [s3] "=&r" (s3),
[temp_reg3] "=&r" (temp_reg3), [temp_reg4] "=&r" (temp_reg4),
[temp_reg5] "=&r" (temp_reg5), [temp_reg6] "=&r" (temp_reg6),
[out] "+r" (out)
: [tmp] "r" (tmp), [win] "r" (win), [buf] "r" (buf)
: "hi", "lo"
);
}
static void ff_imdct36_blocks_mips_fixed(int *out, int *buf, int *in,
int count, int switch_point, int block_type)
{
int j;
for (j=0 ; j < count; j++) {
/* apply window & overlap with previous buffer */
/* select window */
int win_idx = (switch_point && j < 2) ? 0 : block_type;
int *win = ff_mdct_win_fixed[win_idx + (4 & -(j & 1))];
imdct36_mips_fixed(out, buf, in, win);
in += 18;
buf += ((j&3) != 3 ? 1 : (72-3));
out++;
}
}
void ff_mpadsp_init_mipsdspr1(MPADSPContext *s)
{
s->apply_window_fixed = ff_mpadsp_apply_window_mips_fixed;
s->imdct36_blocks_fixed = ff_imdct36_blocks_mips_fixed;
}

1242
libavcodec/mips/mpegaudiodsp_mips_float.c
View File

File diff suppressed because it is too large Load Diff

12
libavcodec/mpegaudiodec.c
Unescape View File

@ -1169,6 +1169,17 @@ found2:
}
}
#if CONFIG_FLOAT
#if HAVE_MIPSFPU
# include "mips/compute_antialias_float.h"
#endif /* HAVE_MIPSFPU */
#else
#if HAVE_MIPSDSPR1
# include "mips/compute_antialias_fixed.h"
#endif /* HAVE_MIPSDSPR1 */
#endif /* CONFIG_FLOAT */
#ifndef compute_antialias
#if CONFIG_FLOAT
#define AA(j) do { \
float tmp0 = ptr[-1-j]; \
@ -1215,6 +1226,7 @@ static void compute_antialias(MPADecodeContext *s, GranuleDef *g)
ptr += 18;
}
}
#endif /* compute_antialias */
static void compute_imdct(MPADecodeContext *s, GranuleDef *g,
INTFLOAT *sb_samples, INTFLOAT *mdct_buf)

2
libavcodec/mpegaudiodsp.c
Unescape View File

@ -43,4 +43,6 @@ void ff_mpadsp_init(MPADSPContext *s)
if (ARCH_ARM) ff_mpadsp_init_arm(s);
if (HAVE_MMX) ff_mpadsp_init_mmx(s);
if (HAVE_ALTIVEC) ff_mpadsp_init_altivec(s);
if (HAVE_MIPSFPU) ff_mpadsp_init_mipsfpu(s);
if (HAVE_MIPSDSPR1) ff_mpadsp_init_mipsdspr1(s);
}

2
libavcodec/mpegaudiodsp.h
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@ -56,6 +56,8 @@ void ff_mpa_synth_filter_float(MPADSPContext *s,
void ff_mpadsp_init_arm(MPADSPContext *s);
void ff_mpadsp_init_mmx(MPADSPContext *s);
void ff_mpadsp_init_altivec(MPADSPContext *s);
void ff_mpadsp_init_mipsfpu(MPADSPContext *s);
void ff_mpadsp_init_mipsdspr1(MPADSPContext *s);
void ff_mpa_synth_init_float(float *window);
void ff_mpa_synth_init_fixed(int32_t *window);

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