1 /* Copyright (c) 2003-2008 Jean-Marc Valin
2 Copyright (c) 2007-2008 CSIRO
3 Copyright (c) 2007-2009 Xiph.Org Foundation
4 Written by Jean-Marc Valin */
5 /**
6 @file arch.h
7 @brief Various architecture definitions for CELT
8 */
9 /*
10 Redistribution and use in source and binary forms, with or without
11 modification, are permitted provided that the following conditions
12 are met:
13
14 - Redistributions of source code must retain the above copyright
15 notice, this list of conditions and the following disclaimer.
16
17 - Redistributions in binary form must reproduce the above copyright
18 notice, this list of conditions and the following disclaimer in the
19 documentation and/or other materials provided with the distribution.
20
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
25 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #ifndef ARCH_H
35 #define ARCH_H
36
37 #include "opus_types.h"
38 #include "opus_defines.h"
39
40 # if !defined(__GNUC_PREREQ)
41 # if defined(__GNUC__)&&defined(__GNUC_MINOR__)
42 # define __GNUC_PREREQ(_maj,_min) \
43 ((__GNUC__<<16)+__GNUC_MINOR__>=((_maj)<<16)+(_min))
44 # else
45 # define __GNUC_PREREQ(_maj,_min) 0
46 # endif
47 # endif
48
49 #define CELT_SIG_SCALE 32768.f
50
51 #define celt_fatal(str) _celt_fatal(str, __FILE__, __LINE__);
52 #ifdef ENABLE_ASSERTIONS
53 #include <stdio.h>
54 #include <stdlib.h>
55 #ifdef __GNUC__
56 __attribute__((noreturn))
57 #endif
_celt_fatal(const char * str,const char * file,int line)58 static OPUS_INLINE void _celt_fatal(const char *str, const char *file, int line)
59 {
60 fprintf (stderr, "Fatal (internal) error in %s, line %d: %s\n", file, line, str);
61 abort();
62 }
63 #define celt_assert(cond) {if (!(cond)) {celt_fatal("assertion failed: " #cond);}}
64 #define celt_assert2(cond, message) {if (!(cond)) {celt_fatal("assertion failed: " #cond "\n" message);}}
65 #else
66 #define celt_assert(cond)
67 #define celt_assert2(cond, message)
68 #endif
69
70 #define IMUL32(a,b) ((a)*(b))
71
72 #define MIN16(a,b) ((a) < (b) ? (a) : (b)) /**< Minimum 16-bit value. */
73 #define MAX16(a,b) ((a) > (b) ? (a) : (b)) /**< Maximum 16-bit value. */
74 #define MIN32(a,b) ((a) < (b) ? (a) : (b)) /**< Minimum 32-bit value. */
75 #define MAX32(a,b) ((a) > (b) ? (a) : (b)) /**< Maximum 32-bit value. */
76 #define IMIN(a,b) ((a) < (b) ? (a) : (b)) /**< Minimum int value. */
77 #define IMAX(a,b) ((a) > (b) ? (a) : (b)) /**< Maximum int value. */
78 #define UADD32(a,b) ((a)+(b))
79 #define USUB32(a,b) ((a)-(b))
80
81 /* Set this if opus_int64 is a native type of the CPU. */
82 /* Assume that all LP64 architectures have fast 64-bit types; also x86_64
83 (which can be ILP32 for x32) and Win64 (which is LLP64). */
84 #if defined(__x86_64__) || defined(__LP64__) || defined(_WIN64)
85 #define OPUS_FAST_INT64 1
86 #else
87 #define OPUS_FAST_INT64 0
88 #endif
89
90 #define PRINT_MIPS(file)
91
92 #ifdef FIXED_POINT
93
94 typedef opus_int16 opus_val16;
95 typedef opus_int32 opus_val32;
96
97 typedef opus_val32 celt_sig;
98 typedef opus_val16 celt_norm;
99 typedef opus_val32 celt_ener;
100
101 #define Q15ONE 32767
102
103 #define SIG_SHIFT 12
104
105 #define NORM_SCALING 16384
106
107 #define DB_SHIFT 10
108
109 #define EPSILON 1
110 #define VERY_SMALL 0
111 #define VERY_LARGE16 ((opus_val16)32767)
112 #define Q15_ONE ((opus_val16)32767)
113
114 #define SCALEIN(a) (a)
115 #define SCALEOUT(a) (a)
116
117 #define ABS16(x) ((x) < 0 ? (-(x)) : (x))
118 #define ABS32(x) ((x) < 0 ? (-(x)) : (x))
119
SAT16(opus_int32 x)120 static OPUS_INLINE opus_int16 SAT16(opus_int32 x) {
121 return x > 32767 ? 32767 : x < -32768 ? -32768 : (opus_int16)x;
122 }
123
124 #ifdef FIXED_DEBUG
125 #include "fixed_debug.h"
126 #else
127
128 #include "fixed_generic.h"
129
130 #ifdef OPUS_ARM_PRESUME_AARCH64_NEON_INTR
131 #include "arm/fixed_arm64.h"
132 #elif OPUS_ARM_INLINE_EDSP
133 #include "arm/fixed_armv5e.h"
134 #elif defined (OPUS_ARM_INLINE_ASM)
135 #include "arm/fixed_armv4.h"
136 #elif defined (BFIN_ASM)
137 #include "fixed_bfin.h"
138 #elif defined (TI_C5X_ASM)
139 #include "fixed_c5x.h"
140 #elif defined (TI_C6X_ASM)
141 #include "fixed_c6x.h"
142 #endif
143
144 #endif
145
146 #else /* FIXED_POINT */
147
148 typedef float opus_val16;
149 typedef float opus_val32;
150
151 typedef float celt_sig;
152 typedef float celt_norm;
153 typedef float celt_ener;
154
155 #ifdef FLOAT_APPROX
156 /* This code should reliably detect NaN/inf even when -ffast-math is used.
157 Assumes IEEE 754 format. */
celt_isnan(float x)158 static OPUS_INLINE int celt_isnan(float x)
159 {
160 union {float f; opus_uint32 i;} in;
161 in.f = x;
162 return ((in.i>>23)&0xFF)==0xFF && (in.i&0x007FFFFF)!=0;
163 }
164 #else
165 #ifdef __FAST_MATH__
166 #error Cannot build libopus with -ffast-math unless FLOAT_APPROX is defined. This could result in crashes on extreme (e.g. NaN) input
167 #endif
168 #define celt_isnan(x) ((x)!=(x))
169 #endif
170
171 #define Q15ONE 1.0f
172
173 #define NORM_SCALING 1.f
174
175 #define EPSILON 1e-15f
176 #define VERY_SMALL 1e-30f
177 #define VERY_LARGE16 1e15f
178 #define Q15_ONE ((opus_val16)1.f)
179
180 /* This appears to be the same speed as C99's fabsf() but it's more portable. */
181 #define ABS16(x) ((float)fabs(x))
182 #define ABS32(x) ((float)fabs(x))
183
184 #define QCONST16(x,bits) (x)
185 #define QCONST32(x,bits) (x)
186
187 #define NEG16(x) (-(x))
188 #define NEG32(x) (-(x))
189 #define EXTRACT16(x) (x)
190 #define EXTEND32(x) (x)
191 #define SHR16(a,shift) (a)
192 #define SHL16(a,shift) (a)
193 #define SHR32(a,shift) (a)
194 #define SHL32(a,shift) (a)
195 #define PSHR32(a,shift) (a)
196 #define VSHR32(a,shift) (a)
197
198 #define PSHR(a,shift) (a)
199 #define SHR(a,shift) (a)
200 #define SHL(a,shift) (a)
201 #define SATURATE(x,a) (x)
202 #define SATURATE16(x) (x)
203
204 #define ROUND16(a,shift) (a)
205 #define HALF16(x) (.5f*(x))
206 #define HALF32(x) (.5f*(x))
207
208 #define ADD16(a,b) ((a)+(b))
209 #define SUB16(a,b) ((a)-(b))
210 #define ADD32(a,b) ((a)+(b))
211 #define SUB32(a,b) ((a)-(b))
212 #define MULT16_16_16(a,b) ((a)*(b))
213 #define MULT16_16(a,b) ((opus_val32)(a)*(opus_val32)(b))
214 #define MAC16_16(c,a,b) ((c)+(opus_val32)(a)*(opus_val32)(b))
215
216 #define MULT16_32_Q15(a,b) ((a)*(b))
217 #define MULT16_32_Q16(a,b) ((a)*(b))
218
219 #define MULT32_32_Q31(a,b) ((a)*(b))
220
221 #define MAC16_32_Q15(c,a,b) ((c)+(a)*(b))
222 #define MAC16_32_Q16(c,a,b) ((c)+(a)*(b))
223
224 #define MULT16_16_Q11_32(a,b) ((a)*(b))
225 #define MULT16_16_Q11(a,b) ((a)*(b))
226 #define MULT16_16_Q13(a,b) ((a)*(b))
227 #define MULT16_16_Q14(a,b) ((a)*(b))
228 #define MULT16_16_Q15(a,b) ((a)*(b))
229 #define MULT16_16_P15(a,b) ((a)*(b))
230 #define MULT16_16_P13(a,b) ((a)*(b))
231 #define MULT16_16_P14(a,b) ((a)*(b))
232 #define MULT16_32_P16(a,b) ((a)*(b))
233
234 #define DIV32_16(a,b) (((opus_val32)(a))/(opus_val16)(b))
235 #define DIV32(a,b) (((opus_val32)(a))/(opus_val32)(b))
236
237 #define SCALEIN(a) ((a)*CELT_SIG_SCALE)
238 #define SCALEOUT(a) ((a)*(1/CELT_SIG_SCALE))
239
240 #define SIG2WORD16(x) (x)
241
242 #endif /* !FIXED_POINT */
243
244 #ifndef GLOBAL_STACK_SIZE
245 #ifdef FIXED_POINT
246 #define GLOBAL_STACK_SIZE 100000
247 #else
248 #define GLOBAL_STACK_SIZE 100000
249 #endif
250 #endif
251
252 #endif /* ARCH_H */
253