1/* Copyright (C) 2007 Hong Zhiqian */ 2/** 3 @file _kiss_fft_guts_tm.h 4 @author Hong Zhiqian 5 @brief Various compatibility routines for Speex (TriMedia version) 6*/ 7/* 8 Redistribution and use in source and binary forms, with or without 9 modification, are permitted provided that the following conditions 10 are met: 11 12 - Redistributions of source code must retain the above copyright 13 notice, this list of conditions and the following disclaimer. 14 15 - Redistributions in binary form must reproduce the above copyright 16 notice, this list of conditions and the following disclaimer in the 17 documentation and/or other materials provided with the distribution. 18 19 - Neither the name of the Xiph.org Foundation nor the names of its 20 contributors may be used to endorse or promote products derived from 21 this software without specific prior written permission. 22 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 26 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR 27 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 28 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 29 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 30 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 31 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 32 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34*/ 35 36#ifndef _KISS_FFT_GUTS_TM_ 37#define _KISS_FFT_GUTS_TM_ 38 39#ifdef TM_ASM 40 41#include <ops/custom_defs.h> 42 43#ifdef FIXED_POINT 44 45#undef sround 46#define sround(x) sex16(((x) + (1<<(FRACBITS-1)) ) >> FRACBITS) 47 48#undef MIN 49#undef MAX 50#define MIN(a,b) imin(a,b) 51#define MAX(a,b) imax(a,b) 52 53#define TM_MUL(res,a,b) \ 54 { register int a0, a1, b0, b1; \ 55 \ 56 a0 = sex16((a)); \ 57 a1 = asri(16,(a)); \ 58 b0 = sex16((b)); \ 59 b1 = asri(16,(b)); \ 60 (res)= pack16lsb( \ 61 sround(ifir16((a),funshift2((b),(b)))), \ 62 sround(a0*b0-a1*b1)); \ 63 } \ 64 65#define TM_ADD(res,a,b) \ 66 { (res)=dspidualadd((a),(b)); \ 67 } \ 68 69#define TM_SUB(res,a,b) \ 70 { (res)=dspidualsub((a),(b)); \ 71 } \ 72 73#define TM_SHR(res,a,shift) \ 74 { (res)=dualasr((a),(shift)); \ 75 } \ 76 77#define TM_DIV(res,c,frac) \ 78 { register int c1, c0; \ 79 \ 80 c1 = asri(16,(c)); \ 81 c0 = sex16((c)); \ 82 (res) = pack16lsb(sround(c1 * (32767/(frac))), sround(c0 * (32767/(frac))));\ 83 } \ 84 85#define TM_NEGMSB(res, a) \ 86 { (res) = pack16lsb((ineg(asri(16,(a)))), (a)); \ 87 } \ 88 89#else 90 91#undef MIN 92#undef MAX 93#define MIN(a,b) fmin(a,b) 94#define MAX(a,b) fmax(a,b) 95 96#endif 97#endif 98 99#undef CHECKBUF 100#define CHECKBUF(buf,nbuf,n) \ 101 { \ 102 if ( nbuf < (size_t)(n) ) { \ 103 speex_free(buf); \ 104 buf = (kiss_fft_cpx*)KISS_FFT_MALLOC(sizeof(kiss_fft_cpx)*(n)); \ 105 nbuf = (size_t)(n); \ 106 } \ 107 } \ 108 109#undef C_ADD 110#define C_ADD( res, a,b) \ 111 { \ 112 CHECK_OVERFLOW_OP((a).r,+,(b).r) \ 113 CHECK_OVERFLOW_OP((a).i,+,(b).i) \ 114 (res).r=(a).r+(b).r; (res).i=(a).i+(b).i; \ 115 } \ 116 117 118#undef C_SUB 119#define C_SUB( res, a,b) \ 120 { \ 121 CHECK_OVERFLOW_OP((a).r,-,(b).r) \ 122 CHECK_OVERFLOW_OP((a).i,-,(b).i) \ 123 (res).r=(a).r-(b).r; (res).i=(a).i-(b).i; \ 124 } \ 125 126#undef C_ADDTO 127#define C_ADDTO( res , a) \ 128 { \ 129 CHECK_OVERFLOW_OP((res).r,+,(a).r) \ 130 CHECK_OVERFLOW_OP((res).i,+,(a).i) \ 131 (res).r += (a).r; (res).i += (a).i; \ 132 } \ 133 134#undef C_SUBFROM 135#define C_SUBFROM( res, a) \ 136 { \ 137 CHECK_OVERFLOW_OP((res).r,-,(a).r) \ 138 CHECK_OVERFLOW_OP((res).i,-,(a).i) \ 139 (res).r -= (a).r; (res).i -= (a).i; \ 140 } \ 141 142#undef kf_cexp 143#define kf_cexp(x,phase) \ 144 { (x)->r = KISS_FFT_COS(phase); \ 145 (x)->i = KISS_FFT_SIN(phase); } \ 146 147#undef kf_cexp2 148#define kf_cexp2(x,phase) \ 149 { (x)->r = spx_cos_norm((phase)); \ 150 (x)->i = spx_cos_norm((phase)-32768); } \ 151 152 153#ifdef FIXED_POINT 154 155#undef C_MUL 156#define C_MUL(m,a,b) \ 157 { (m).r = sround( smul((a).r,(b).r) - smul((a).i,(b).i) ); \ 158 (m).i = sround( smul((a).r,(b).i) + smul((a).i,(b).r) ); } \ 159 160#undef C_FIXDIV 161#define C_FIXDIV(c,div) \ 162 { DIVSCALAR( (c).r , div); \ 163 DIVSCALAR( (c).i , div); } \ 164 165#undef C_MULBYSCALAR 166#define C_MULBYSCALAR( c, s ) \ 167 { (c).r = sround( smul( (c).r , s ) ) ; \ 168 (c).i = sround( smul( (c).i , s ) ) ; } \ 169 170#else 171 172#undef C_MUL 173#define C_MUL(m,a,b) \ 174 { (m).r = (a).r*(b).r - (a).i*(b).i; \ 175 (m).i = (a).r*(b).i + (a).i*(b).r; } \ 176 177 178#undef C_MULBYSCALAR 179#define C_MULBYSCALAR( c, s ) \ 180 { (c).r *= (s); \ 181 (c).i *= (s); } \ 182 183 184 185#endif 186 187#endif 188 189