1 /* Copyright (C) 2003 Jean-Marc Valin */
2 /**
3    @file arch.h
4    @brief Various architecture definitions Speex
5 */
6 /*
7    Redistribution and use in source and binary forms, with or without
8    modification, are permitted provided that the following conditions
9    are met:
10 
11    - Redistributions of source code must retain the above copyright
12    notice, this list of conditions and the following disclaimer.
13 
14    - Redistributions in binary form must reproduce the above copyright
15    notice, this list of conditions and the following disclaimer in the
16    documentation and/or other materials provided with the distribution.
17 
18    - Neither the name of the Xiph.org Foundation nor the names of its
19    contributors may be used to endorse or promote products derived from
20    this software without specific prior written permission.
21 
22    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23    ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25    A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
26    CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28    PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
29    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
30    LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34 
35 #ifndef ARCH_H
36 #define ARCH_H
37 
38 #include "speex/speex_types.h"
39 
40 #define ABS(x) ((x) < 0 ? (-(x)) : (x))
41 
42 #ifdef FIXED_POINT
43 
44 typedef spx_int16_t spx_word16_t;
45 typedef spx_int32_t   spx_word32_t;
46 #ifdef _MSC_VER
47 typedef __int64      spx_word64_t;
48 #else
49 typedef long long    spx_word64_t;
50 #endif
51 typedef spx_word32_t spx_mem_t;
52 typedef spx_word16_t spx_coef_t;
53 typedef spx_word16_t spx_lsp_t;
54 typedef spx_word32_t spx_sig_t;
55 
56 #define LPC_SCALING  8192
57 #define SIG_SCALING  16384
58 #define LSP_SCALING  8192.
59 #define GAMMA_SCALING 32768.
60 #define GAIN_SCALING 64
61 #define GAIN_SCALING_1 0.015625
62 
63 #define LPC_SHIFT    13
64 #define SIG_SHIFT    14
65 
66 #define VERY_SMALL 0
67 
68 
69 #ifdef ARM5E_ASM
70 #include "fixed_arm5e.h"
71 #elif defined (ARM4_ASM)
72 #include "fixed_arm4.h"
73 #elif defined (FIXED_DEBUG)
74 #include "fixed_debug.h"
75 #else
76 #include "fixed_generic.h"
77 #endif
78 
79 
80 
81 #else
82 
83 typedef float spx_mem_t;
84 typedef float spx_coef_t;
85 typedef float spx_lsp_t;
86 typedef float spx_sig_t;
87 typedef float spx_word16_t;
88 typedef float spx_word32_t;
89 typedef float spx_word64_t;
90 
91 #define LPC_SCALING  1.
92 #define SIG_SCALING  1.
93 #define LSP_SCALING  1.
94 #define GAMMA_SCALING 1.
95 #define GAIN_SCALING 1.
96 #define GAIN_SCALING_1 1.
97 
98 #define LPC_SHIFT    0
99 #define SIG_SHIFT    0
100 
101 #define VERY_SMALL 1e-15
102 
103 #define NEG16(x) (-(x))
104 #define NEG32(x) (-(x))
105 #define EXTRACT16(x) (x)
106 #define EXTEND32(x) (x)
107 #define SHR16(a,shift) (a)
108 #define SHL16(a,shift) (a)
109 #define SHR32(a,shift) (a)
110 #define SHL32(a,shift) (a)
111 #define PSHR16(a,shift) (a)
112 #define PSHR32(a,shift) (a)
113 #define SATURATE16(x,a) (x)
114 #define SATURATE32(x,a) (x)
115 
116 #define PSHR(a,shift)       (a)
117 #define SHR(a,shift)       (a)
118 #define SHL(a,shift)       (a)
119 #define SATURATE(x,a) (x)
120 
121 #define ADD16(a,b) ((a)+(b))
122 #define SUB16(a,b) ((a)-(b))
123 #define ADD32(a,b) ((a)+(b))
124 #define SUB32(a,b) ((a)-(b))
125 #define ADD64(a,b) ((a)+(b))
126 #define MULT16_16_16(a,b)     ((a)*(b))
127 #define MULT16_16(a,b)     ((spx_word32_t)(a)*(spx_word32_t)(b))
128 #define MAC16_16(c,a,b)     ((c)+(spx_word32_t)(a)*(spx_word32_t)(b))
129 
130 #define MULT16_32_Q11(a,b)     ((a)*(b))
131 #define MULT16_32_Q13(a,b)     ((a)*(b))
132 #define MULT16_32_Q14(a,b)     ((a)*(b))
133 #define MULT16_32_Q15(a,b)     ((a)*(b))
134 
135 #define MAC16_32_Q11(c,a,b)     ((c)+(a)*(b))
136 #define MAC16_32_Q15(c,a,b)     ((c)+(a)*(b))
137 
138 #define MAC16_16_Q11(c,a,b)     ((c)+(a)*(b))
139 #define MAC16_16_Q13(c,a,b)     ((c)+(a)*(b))
140 #define MULT16_16_Q11_32(a,b)     ((a)*(b))
141 #define MULT16_16_Q13(a,b)     ((a)*(b))
142 #define MULT16_16_Q14(a,b)     ((a)*(b))
143 #define MULT16_16_Q15(a,b)     ((a)*(b))
144 #define MULT16_16_P15(a,b)     ((a)*(b))
145 
146 #define DIV32_16(a,b)     ((a)/(b))
147 #define DIV32(a,b)     ((a)/(b))
148 
149 
150 #endif
151 
152 
153 #ifdef CONFIG_TI_C55X
154 
155 /* 2 on TI C5x DSP */
156 #define BYTES_PER_CHAR 2
157 #define BITS_PER_CHAR 16
158 #define LOG2_BITS_PER_CHAR 4
159 
160 #else
161 
162 #define BYTES_PER_CHAR 1
163 #define BITS_PER_CHAR 8
164 #define LOG2_BITS_PER_CHAR 3
165 
166 #endif
167 
168 #endif
169