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
38extern "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