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Diffstat (limited to 'lib/rbcodec/codecs/libspeex/stack_alloc.h')
-rw-r--r-- | lib/rbcodec/codecs/libspeex/stack_alloc.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libspeex/stack_alloc.h b/lib/rbcodec/codecs/libspeex/stack_alloc.h new file mode 100644 index 0000000000..f06f2f6f7f --- /dev/null +++ b/lib/rbcodec/codecs/libspeex/stack_alloc.h | |||
@@ -0,0 +1,130 @@ | |||
1 | /* Copyright (C) 2002 Jean-Marc Valin */ | ||
2 | /** | ||
3 | @file stack_alloc.h | ||
4 | @brief Temporary memory allocation on stack | ||
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 STACK_ALLOC_H | ||
36 | #define STACK_ALLOC_H | ||
37 | |||
38 | #include "config-speex.h" | ||
39 | |||
40 | #ifdef USE_ALLOCA | ||
41 | # ifdef WIN32 | ||
42 | # include <malloc.h> | ||
43 | # else | ||
44 | # ifdef HAVE_ALLOCA_H | ||
45 | # include <alloca.h> | ||
46 | # else | ||
47 | # include <stdlib.h> | ||
48 | # endif | ||
49 | # endif | ||
50 | #endif | ||
51 | |||
52 | /** | ||
53 | * @def ALIGN(stack, size) | ||
54 | * | ||
55 | * Aligns the stack to a 'size' boundary | ||
56 | * | ||
57 | * @param stack Stack | ||
58 | * @param size New size boundary | ||
59 | */ | ||
60 | |||
61 | /** | ||
62 | * @def PUSH(stack, size, type) | ||
63 | * | ||
64 | * Allocates 'size' elements of type 'type' on the stack | ||
65 | * | ||
66 | * @param stack Stack | ||
67 | * @param size Number of elements | ||
68 | * @param type Type of element | ||
69 | */ | ||
70 | |||
71 | /** | ||
72 | * @def PUSHS(stack, type) | ||
73 | * | ||
74 | * Allocates a struct stack | ||
75 | * | ||
76 | * @param stack Stack | ||
77 | * @param type Struct type | ||
78 | */ | ||
79 | |||
80 | /** | ||
81 | * @def VARDECL(var) | ||
82 | * | ||
83 | * Declare variable on stack | ||
84 | * | ||
85 | * @param var Variable to declare | ||
86 | */ | ||
87 | |||
88 | /** | ||
89 | * @def ALLOC(var, size, type) | ||
90 | * | ||
91 | * Allocate 'size' elements of 'type' on stack | ||
92 | * | ||
93 | * @param var Name of variable to allocate | ||
94 | * @param size Number of elements | ||
95 | * @param type Type of element | ||
96 | */ | ||
97 | |||
98 | #ifdef ENABLE_VALGRIND | ||
99 | |||
100 | #include <valgrind/memcheck.h> | ||
101 | |||
102 | #define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1)) | ||
103 | |||
104 | #define PUSH(stack, size, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(type)),VALGRIND_MAKE_WRITABLE(stack, ((size)*sizeof(type))),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type)))) | ||
105 | |||
106 | #define PUSHS(stack, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(long)),VALGRIND_MAKE_WRITABLE(stack, (sizeof(type))),(stack)+=(sizeof(type)),(type*)((stack)-(sizeof(type)))) | ||
107 | |||
108 | #else | ||
109 | |||
110 | #define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1)) | ||
111 | |||
112 | #define PUSH(stack, size, type) (ALIGN((stack),sizeof(type)),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type)))) | ||
113 | |||
114 | #define PUSHS(stack, type) (ALIGN((stack),sizeof(long)),(stack)+=(sizeof(type)),(type*)((stack)-(sizeof(type)))) | ||
115 | |||
116 | #endif | ||
117 | |||
118 | #if defined(VAR_ARRAYS) | ||
119 | #define VARDECL(var) | ||
120 | #define ALLOC(var, size, type) type var[size] | ||
121 | #elif defined(USE_ALLOCA) | ||
122 | #define VARDECL(var) var | ||
123 | #define ALLOC(var, size, type) var = alloca(sizeof(type)*(size)) | ||
124 | #else | ||
125 | #define VARDECL(var) var | ||
126 | #define ALLOC(var, size, type) var = PUSH(stack, size, type) | ||
127 | #endif | ||
128 | |||
129 | |||
130 | #endif | ||