| /* |
| * 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. |
| * |
| * Authors: Darko Laus (darko@mips.com) |
| * Djordje Pesut (djordje@mips.com) |
| * Mirjana Vulin (mvulin@mips.com) |
| * |
| * AAC Spectral Band Replication decoding functions optimized for MIPS |
| * |
| * 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/aacdec.c |
| */ |
| |
| #ifndef AVCODEC_MIPS_AACDEC_FLOAT_H |
| #define AVCODEC_MIPS_AACDEC_FLOAT_H |
| |
| #include "libavcodec/aac.h" |
| |
| #if HAVE_INLINE_ASM && HAVE_MIPSFPU |
| static inline float *VMUL2_mips(float *dst, const float *v, unsigned idx, |
| const float *scale) |
| { |
| float temp0, temp1, temp2; |
| int temp3, temp4; |
| float *ret; |
| |
| __asm__ volatile( |
| "andi %[temp3], %[idx], 15 \n\t" |
| "ext %[temp4], %[idx], 4, 4 \n\t" |
| "sll %[temp3], %[temp3], 2 \n\t" |
| "sll %[temp4], %[temp4], 2 \n\t" |
| "lwc1 %[temp2], 0(%[scale]) \n\t" |
| "lwxc1 %[temp0], %[temp3](%[v]) \n\t" |
| "lwxc1 %[temp1], %[temp4](%[v]) \n\t" |
| "mul.s %[temp0], %[temp0], %[temp2] \n\t" |
| "mul.s %[temp1], %[temp1], %[temp2] \n\t" |
| "addiu %[ret], %[dst], 8 \n\t" |
| "swc1 %[temp0], 0(%[dst]) \n\t" |
| "swc1 %[temp1], 4(%[dst]) \n\t" |
| |
| : [temp0]"=&f"(temp0), [temp1]"=&f"(temp1), |
| [temp2]"=&f"(temp2), [temp3]"=&r"(temp3), |
| [temp4]"=&r"(temp4), [ret]"=&r"(ret) |
| : [idx]"r"(idx), [scale]"r"(scale), [v]"r"(v), |
| [dst]"r"(dst) |
| : "memory" |
| ); |
| return ret; |
| } |
| |
| static inline float *VMUL4_mips(float *dst, const float *v, unsigned idx, |
| const float *scale) |
| { |
| int temp0, temp1, temp2, temp3; |
| float temp4, temp5, temp6, temp7, temp8; |
| float *ret; |
| |
| __asm__ volatile( |
| "andi %[temp0], %[idx], 3 \n\t" |
| "ext %[temp1], %[idx], 2, 2 \n\t" |
| "ext %[temp2], %[idx], 4, 2 \n\t" |
| "ext %[temp3], %[idx], 6, 2 \n\t" |
| "sll %[temp0], %[temp0], 2 \n\t" |
| "sll %[temp1], %[temp1], 2 \n\t" |
| "sll %[temp2], %[temp2], 2 \n\t" |
| "sll %[temp3], %[temp3], 2 \n\t" |
| "lwc1 %[temp4], 0(%[scale]) \n\t" |
| "lwxc1 %[temp5], %[temp0](%[v]) \n\t" |
| "lwxc1 %[temp6], %[temp1](%[v]) \n\t" |
| "lwxc1 %[temp7], %[temp2](%[v]) \n\t" |
| "lwxc1 %[temp8], %[temp3](%[v]) \n\t" |
| "mul.s %[temp5], %[temp5], %[temp4] \n\t" |
| "mul.s %[temp6], %[temp6], %[temp4] \n\t" |
| "mul.s %[temp7], %[temp7], %[temp4] \n\t" |
| "mul.s %[temp8], %[temp8], %[temp4] \n\t" |
| "addiu %[ret], %[dst], 16 \n\t" |
| "swc1 %[temp5], 0(%[dst]) \n\t" |
| "swc1 %[temp6], 4(%[dst]) \n\t" |
| "swc1 %[temp7], 8(%[dst]) \n\t" |
| "swc1 %[temp8], 12(%[dst]) \n\t" |
| |
| : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), |
| [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), |
| [temp4]"=&f"(temp4), [temp5]"=&f"(temp5), |
| [temp6]"=&f"(temp6), [temp7]"=&f"(temp7), |
| [temp8]"=&f"(temp8), [ret]"=&r"(ret) |
| : [idx]"r"(idx), [scale]"r"(scale), [v]"r"(v), |
| [dst]"r"(dst) |
| : "memory" |
| ); |
| return ret; |
| } |
| |
| static inline float *VMUL2S_mips(float *dst, const float *v, unsigned idx, |
| unsigned sign, const float *scale) |
| { |
| int temp0, temp1, temp2, temp3, temp4, temp5; |
| float temp6, temp7, temp8, temp9; |
| float *ret; |
| |
| __asm__ volatile( |
| "andi %[temp0], %[idx], 15 \n\t" |
| "ext %[temp1], %[idx], 4, 4 \n\t" |
| "lw %[temp4], 0(%[scale]) \n\t" |
| "srl %[temp2], %[sign], 1 \n\t" |
| "sll %[temp3], %[sign], 31 \n\t" |
| "sll %[temp2], %[temp2], 31 \n\t" |
| "sll %[temp0], %[temp0], 2 \n\t" |
| "sll %[temp1], %[temp1], 2 \n\t" |
| "lwxc1 %[temp8], %[temp0](%[v]) \n\t" |
| "lwxc1 %[temp9], %[temp1](%[v]) \n\t" |
| "xor %[temp5], %[temp4], %[temp2] \n\t" |
| "xor %[temp4], %[temp4], %[temp3] \n\t" |
| "mtc1 %[temp5], %[temp6] \n\t" |
| "mtc1 %[temp4], %[temp7] \n\t" |
| "mul.s %[temp8], %[temp8], %[temp6] \n\t" |
| "mul.s %[temp9], %[temp9], %[temp7] \n\t" |
| "addiu %[ret], %[dst], 8 \n\t" |
| "swc1 %[temp8], 0(%[dst]) \n\t" |
| "swc1 %[temp9], 4(%[dst]) \n\t" |
| |
| : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), |
| [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), |
| [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), |
| [temp6]"=&f"(temp6), [temp7]"=&f"(temp7), |
| [temp8]"=&f"(temp8), [temp9]"=&f"(temp9), |
| [ret]"=&r"(ret) |
| : [idx]"r"(idx), [scale]"r"(scale), [v]"r"(v), |
| [dst]"r"(dst), [sign]"r"(sign) |
| : "memory" |
| ); |
| return ret; |
| } |
| |
| static inline float *VMUL4S_mips(float *dst, const float *v, unsigned idx, |
| unsigned sign, const float *scale) |
| { |
| int temp0, temp1, temp2, temp3, temp4; |
| float temp10, temp11, temp12, temp13, temp14, temp15, temp16, temp17; |
| float *ret; |
| unsigned int mask = 1U << 31; |
| |
| __asm__ volatile( |
| "lw %[temp0], 0(%[scale]) \n\t" |
| "and %[temp1], %[idx], 3 \n\t" |
| "ext %[temp2], %[idx], 2, 2 \n\t" |
| "ext %[temp3], %[idx], 4, 2 \n\t" |
| "ext %[temp4], %[idx], 6, 2 \n\t" |
| "sll %[temp1], %[temp1], 2 \n\t" |
| "sll %[temp2], %[temp2], 2 \n\t" |
| "sll %[temp3], %[temp3], 2 \n\t" |
| "sll %[temp4], %[temp4], 2 \n\t" |
| "lwxc1 %[temp10], %[temp1](%[v]) \n\t" |
| "lwxc1 %[temp11], %[temp2](%[v]) \n\t" |
| "lwxc1 %[temp12], %[temp3](%[v]) \n\t" |
| "lwxc1 %[temp13], %[temp4](%[v]) \n\t" |
| "and %[temp1], %[sign], %[mask] \n\t" |
| "ext %[temp2], %[idx], 12, 1 \n\t" |
| "ext %[temp3], %[idx], 13, 1 \n\t" |
| "ext %[temp4], %[idx], 14, 1 \n\t" |
| "sllv %[sign], %[sign], %[temp2] \n\t" |
| "xor %[temp1], %[temp0], %[temp1] \n\t" |
| "and %[temp2], %[sign], %[mask] \n\t" |
| "mtc1 %[temp1], %[temp14] \n\t" |
| "xor %[temp2], %[temp0], %[temp2] \n\t" |
| "sllv %[sign], %[sign], %[temp3] \n\t" |
| "mtc1 %[temp2], %[temp15] \n\t" |
| "and %[temp3], %[sign], %[mask] \n\t" |
| "sllv %[sign], %[sign], %[temp4] \n\t" |
| "xor %[temp3], %[temp0], %[temp3] \n\t" |
| "and %[temp4], %[sign], %[mask] \n\t" |
| "mtc1 %[temp3], %[temp16] \n\t" |
| "xor %[temp4], %[temp0], %[temp4] \n\t" |
| "mtc1 %[temp4], %[temp17] \n\t" |
| "mul.s %[temp10], %[temp10], %[temp14] \n\t" |
| "mul.s %[temp11], %[temp11], %[temp15] \n\t" |
| "mul.s %[temp12], %[temp12], %[temp16] \n\t" |
| "mul.s %[temp13], %[temp13], %[temp17] \n\t" |
| "addiu %[ret], %[dst], 16 \n\t" |
| "swc1 %[temp10], 0(%[dst]) \n\t" |
| "swc1 %[temp11], 4(%[dst]) \n\t" |
| "swc1 %[temp12], 8(%[dst]) \n\t" |
| "swc1 %[temp13], 12(%[dst]) \n\t" |
| |
| : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), |
| [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), |
| [temp4]"=&r"(temp4), [temp10]"=&f"(temp10), |
| [temp11]"=&f"(temp11), [temp12]"=&f"(temp12), |
| [temp13]"=&f"(temp13), [temp14]"=&f"(temp14), |
| [temp15]"=&f"(temp15), [temp16]"=&f"(temp16), |
| [temp17]"=&f"(temp17), [ret]"=&r"(ret), |
| [sign]"+r"(sign) |
| : [idx]"r"(idx), [scale]"r"(scale), [v]"r"(v), |
| [dst]"r"(dst), [mask]"r"(mask) |
| : "memory" |
| ); |
| return ret; |
| } |
| |
| #define VMUL2 VMUL2_mips |
| #define VMUL4 VMUL4_mips |
| #define VMUL2S VMUL2S_mips |
| #define VMUL4S VMUL4S_mips |
| #endif /* HAVE_INLINE_ASM && HAVE_MIPSFPU */ |
| |
| #endif /* AVCODEC_MIPS_AACDEC_FLOAT_H */ |
