diff options
Diffstat (limited to 'libavcodec/mips/compute_antialias_fixed.h')
| -rw-r--r-- | libavcodec/mips/compute_antialias_fixed.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/libavcodec/mips/compute_antialias_fixed.h b/libavcodec/mips/compute_antialias_fixed.h new file mode 100644 index 0000000000..a967f67de7 --- /dev/null +++ b/libavcodec/mips/compute_antialias_fixed.h @@ -0,0 +1,250 @@ +/* + * 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 + +#if HAVE_INLINE_ASM +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], $ac3 \n\t" + "sll %[temp_reg4], %[temp_reg4], 2 \n\t" + "sll %[temp_reg5], %[temp_reg5], 2 \n\t" + "sw %[temp_reg4], -8*4(%[ptr]) \n\t" + "sw %[temp_reg5], 7*4(%[ptr]) \n\t" + + : [tmp0] "=&r" (tmp0), [tmp1] "=&r" (tmp1), [tmp2] "=&r" (tmp2), + [tmp00] "=&r" (tmp00), [tmp11] "=&r" (tmp11), + [temp_reg1] "=&r" (temp_reg1), [temp_reg2] "=&r" (temp_reg2), + [temp_reg3] "=&r" (temp_reg3), [temp_reg4] "=&r" (temp_reg4), + [temp_reg5] "=&r" (temp_reg5), [temp_reg6] "=&r" (temp_reg6) + : [csa] "r" (csa), [ptr] "r" (ptr), + [MAX_lo] "r" (MAX_lo) + : "memory", "hi", "lo", "$ac1hi", "$ac1lo", "$ac2hi", "$ac2lo", + "$ac3hi", "$ac3lo" + ); + + ptr += 18; + } +} +#define compute_antialias compute_antialias_mips_fixed +#endif /* HAVE_INLINE_ASM */ + +#endif /* AVCODEC_MIPS_COMPUTE_ANTIALIAS_FIXED_H */ |