1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 /* 19 20 Pathname: ./c/include/fxp_mul32_c_equivalent.h 21 22 ------------------------------------------------------------------------------ 23 REVISION HISTORY 24 25 Who: Date: 26 Description: 27 ------------------------------------------------------------------------------ 28 INCLUDE DESCRIPTION 29 30 ------------------------------------------------------------------------------ 31 */ 32 33 #ifndef FXP_MUL32_C_EQUIVALENT 34 #define FXP_MUL32_C_EQUIVALENT 35 36 37 #ifdef __cplusplus 38 extern "C" 39 { 40 #endif 41 42 43 #include "pv_audio_type_defs.h" 44 45 46 #if defined(C_EQUIVALENT) 47 48 #define preload_cache( a) 49 50 __inline Int32 shft_lft_1(Int32 L_var1) 51 { 52 if (((L_var1 << 1) >> 1) == L_var1) 53 L_var1 <<= 1; 54 else 55 L_var1 = ((L_var1 >> 31) ^ INT32_MAX); 56 57 return (L_var1); 58 59 } 60 61 62 __inline Int32 fxp_mul_16_by_16bb(Int32 L_var1, Int32 L_var2) 63 { 64 L_var2 = (L_var2 << 16) >> 16; 65 L_var1 = (L_var1 << 16) >> 16; 66 67 L_var1 *= L_var2; 68 69 return L_var1; 70 71 } 72 73 74 #define fxp_mul_16_by_16(a, b) fxp_mul_16_by_16bb( a, b) 75 76 77 __inline Int32 fxp_mul_16_by_16tb(Int32 L_var1, Int32 L_var2) 78 { 79 L_var2 = (L_var2 << 16) >> 16; 80 L_var1 = L_var1 >> 16; 81 82 L_var1 *= L_var2; 83 84 return L_var1; 85 86 } 87 88 89 __inline Int32 fxp_mul_16_by_16bt(Int32 L_var1, Int32 L_var2) 90 { 91 L_var2 = L_var2 >> 16; 92 L_var1 = (L_var1 << 16) >> 16; 93 94 L_var1 *= L_var2; 95 96 return L_var1; 97 98 } 99 100 101 __inline Int32 fxp_mul_16_by_16tt(Int32 L_var1, Int32 L_var2) 102 { 103 L_var2 = L_var2 >> 16; 104 L_var1 = L_var1 >> 16; 105 106 L_var1 *= L_var2; 107 108 return L_var1; 109 110 } 111 112 __inline Int32 fxp_mac_16_by_16(Int16 L_var1, Int16 L_var2, Int32 L_add) 113 { 114 115 L_add += L_var1 * L_var2; 116 117 return L_add; 118 119 } 120 121 122 123 124 125 __inline Int32 fxp_mac_16_by_16_bb(Int16 L_var1, Int32 L_var2, Int32 L_add) 126 { 127 L_var2 = (L_var2 << 16) >> 16; 128 129 L_add += L_var1 * L_var2; 130 131 return L_add; 132 133 } 134 135 136 __inline Int32 fxp_mac_16_by_16_bt(Int16 L_var1, Int32 L_var2, Int32 L_add) 137 { 138 L_var2 = L_var2 >> 16; 139 140 L_add += L_var1 * L_var2; 141 142 return L_add; 143 144 } 145 146 147 148 149 150 __inline Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw) 151 { 152 Int32 rTmp0 = (Int16)(exp_jw >> 16); 153 Int32 iTmp0 = exp_jw; 154 Int32 z; 155 156 z = (Int32)(((int64_t)x * (rTmp0 << 16)) >> 32); 157 z += (Int32)(((int64_t)y * (iTmp0 << 16)) >> 32); 158 159 return (z); 160 } 161 162 163 __inline Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2) 164 { 165 Int32 z; 166 167 z = (Int32)(((int64_t) L_var1 * (L_var2 << 16)) >> 32); 168 return(z); 169 } 170 171 172 #define fxp_mul32_by_16b( a, b) fxp_mul32_by_16( a, b) 173 174 175 __inline Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2) 176 { 177 Int32 rTmp0 = (Int16)(L_var2 >> 16); 178 Int32 z; 179 180 z = (Int32)(((int64_t) L_var1 * (rTmp0 << 16)) >> 32); 181 182 return(z); 183 } 184 185 186 __inline Int32 fxp_mac32_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add) 187 { 188 Int32 rTmp0 = L_var2 << 16; 189 190 L_add += (Int32)(((int64_t) L_var1 * rTmp0) >> 32); 191 192 return(L_add); 193 } 194 195 __inline int64_t fxp_mac64_Q31(int64_t sum, const Int32 L_var1, const Int32 L_var2) 196 { 197 sum += (int64_t)L_var1 * L_var2; 198 return (sum); 199 } 200 201 __inline Int32 fxp_mul32_Q31(const Int32 a, const Int32 b) 202 { 203 return (Int32)(((int64_t)(a) * b) >> 32); 204 } 205 206 __inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b) 207 { 208 return (L_add + (Int32)(((int64_t)(a) * b) >> 32)); 209 } 210 211 __inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b) 212 { 213 return (L_sub - (Int32)(((int64_t)(a) * b) >> 32)); 214 } 215 216 217 __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b) 218 { 219 return (Int32)(((int64_t)(a) * b) >> 30); 220 } 221 222 __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add) 223 { 224 return (L_add + (Int32)(((int64_t)(a) * b) >> 30)); 225 } 226 227 228 __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b) 229 { 230 return (Int32)(((int64_t)(a) * b) >> 29); 231 } 232 233 __inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add) 234 { 235 return (L_add + (Int32)(((int64_t)(a) * b) >> 29)); 236 } 237 238 __inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub) 239 { 240 return (L_sub - (Int32)(((int64_t)(a) * b) >> 29)); 241 } 242 243 244 __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b) 245 { 246 return (Int32)(((int64_t)(a) * b) >> 28); 247 } 248 249 __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b) 250 { 251 return (Int32)(((int64_t)(a) * b) >> 27); 252 } 253 254 __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b) 255 { 256 return (Int32)(((int64_t)(a) * b) >> 26); 257 } 258 259 __inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b) 260 { 261 return (Int32)(((int64_t)(a) * b) >> 20); 262 } 263 264 __inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b) 265 { 266 return (Int32)(((int64_t)(a) * b) >> 15); 267 } 268 269 __inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b) 270 { 271 return (Int32)(((int64_t)(a) * b) >> 14); 272 } 273 274 275 276 #endif 277 278 279 #ifdef __cplusplus 280 } 281 #endif 282 283 284 #endif /* FXP_MUL32 */ 285 286
