diff options
Diffstat (limited to 'apps/codecs/libFLAC/memory.c')
-rw-r--r-- | apps/codecs/libFLAC/memory.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/apps/codecs/libFLAC/memory.c b/apps/codecs/libFLAC/memory.c new file mode 100644 index 0000000000..9718b261b8 --- /dev/null +++ b/apps/codecs/libFLAC/memory.c | |||
@@ -0,0 +1,188 @@ | |||
1 | /* libFLAC - Free Lossless Audio Codec library | ||
2 | * Copyright (C) 2001,2002,2003,2004,2005 Josh Coalson | ||
3 | * | ||
4 | * Redistribution and use in source and binary forms, with or without | ||
5 | * modification, are permitted provided that the following conditions | ||
6 | * are met: | ||
7 | * | ||
8 | * - Redistributions of source code must retain the above copyright | ||
9 | * notice, this list of conditions and the following disclaimer. | ||
10 | * | ||
11 | * - Redistributions in binary form must reproduce the above copyright | ||
12 | * notice, this list of conditions and the following disclaimer in the | ||
13 | * documentation and/or other materials provided with the distribution. | ||
14 | * | ||
15 | * - Neither the name of the Xiph.org Foundation nor the names of its | ||
16 | * contributors may be used to endorse or promote products derived from | ||
17 | * this software without specific prior written permission. | ||
18 | * | ||
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR | ||
23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
30 | */ | ||
31 | |||
32 | #include "private/memory.h" | ||
33 | #include "FLAC/assert.h" | ||
34 | |||
35 | #ifdef HAVE_CONFIG_H | ||
36 | #include <config.h> | ||
37 | #endif | ||
38 | |||
39 | void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address) | ||
40 | { | ||
41 | void *x; | ||
42 | |||
43 | FLAC__ASSERT(0 != aligned_address); | ||
44 | |||
45 | #ifdef FLAC__ALIGN_MALLOC_DATA | ||
46 | /* align on 32-byte (256-bit) boundary */ | ||
47 | x = malloc(bytes+31); | ||
48 | *aligned_address = (void*)(((unsigned)x + 31) & -32); | ||
49 | #else | ||
50 | x = malloc(bytes); | ||
51 | *aligned_address = x; | ||
52 | #endif | ||
53 | return x; | ||
54 | } | ||
55 | |||
56 | FLAC__bool FLAC__memory_alloc_aligned_int32_array(unsigned elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer) | ||
57 | { | ||
58 | FLAC__int32 *pu; /* unaligned pointer */ | ||
59 | union { /* union needed to comply with C99 pointer aliasing rules */ | ||
60 | FLAC__int32 *pa; /* aligned pointer */ | ||
61 | void *pv; /* aligned pointer alias */ | ||
62 | } u; | ||
63 | |||
64 | FLAC__ASSERT(elements > 0); | ||
65 | FLAC__ASSERT(0 != unaligned_pointer); | ||
66 | FLAC__ASSERT(0 != aligned_pointer); | ||
67 | FLAC__ASSERT(unaligned_pointer != aligned_pointer); | ||
68 | |||
69 | pu = (FLAC__int32*)FLAC__memory_alloc_aligned(sizeof(FLAC__int32) * elements, &u.pv); | ||
70 | if(0 == pu) { | ||
71 | return false; | ||
72 | } | ||
73 | else { | ||
74 | if(*unaligned_pointer != 0) | ||
75 | free(*unaligned_pointer); | ||
76 | *unaligned_pointer = pu; | ||
77 | *aligned_pointer = u.pa; | ||
78 | return true; | ||
79 | } | ||
80 | } | ||
81 | |||
82 | FLAC__bool FLAC__memory_alloc_aligned_uint32_array(unsigned elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer) | ||
83 | { | ||
84 | FLAC__uint32 *pu; /* unaligned pointer */ | ||
85 | union { /* union needed to comply with C99 pointer aliasing rules */ | ||
86 | FLAC__uint32 *pa; /* aligned pointer */ | ||
87 | void *pv; /* aligned pointer alias */ | ||
88 | } u; | ||
89 | |||
90 | FLAC__ASSERT(elements > 0); | ||
91 | FLAC__ASSERT(0 != unaligned_pointer); | ||
92 | FLAC__ASSERT(0 != aligned_pointer); | ||
93 | FLAC__ASSERT(unaligned_pointer != aligned_pointer); | ||
94 | |||
95 | pu = (FLAC__uint32*)FLAC__memory_alloc_aligned(sizeof(FLAC__uint32) * elements, &u.pv); | ||
96 | if(0 == pu) { | ||
97 | return false; | ||
98 | } | ||
99 | else { | ||
100 | if(*unaligned_pointer != 0) | ||
101 | free(*unaligned_pointer); | ||
102 | *unaligned_pointer = pu; | ||
103 | *aligned_pointer = u.pa; | ||
104 | return true; | ||
105 | } | ||
106 | } | ||
107 | |||
108 | FLAC__bool FLAC__memory_alloc_aligned_uint64_array(unsigned elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer) | ||
109 | { | ||
110 | FLAC__uint64 *pu; /* unaligned pointer */ | ||
111 | union { /* union needed to comply with C99 pointer aliasing rules */ | ||
112 | FLAC__uint64 *pa; /* aligned pointer */ | ||
113 | void *pv; /* aligned pointer alias */ | ||
114 | } u; | ||
115 | |||
116 | FLAC__ASSERT(elements > 0); | ||
117 | FLAC__ASSERT(0 != unaligned_pointer); | ||
118 | FLAC__ASSERT(0 != aligned_pointer); | ||
119 | FLAC__ASSERT(unaligned_pointer != aligned_pointer); | ||
120 | |||
121 | pu = (FLAC__uint64*)FLAC__memory_alloc_aligned(sizeof(FLAC__uint64) * elements, &u.pv); | ||
122 | if(0 == pu) { | ||
123 | return false; | ||
124 | } | ||
125 | else { | ||
126 | if(*unaligned_pointer != 0) | ||
127 | free(*unaligned_pointer); | ||
128 | *unaligned_pointer = pu; | ||
129 | *aligned_pointer = u.pa; | ||
130 | return true; | ||
131 | } | ||
132 | } | ||
133 | |||
134 | FLAC__bool FLAC__memory_alloc_aligned_unsigned_array(unsigned elements, unsigned **unaligned_pointer, unsigned **aligned_pointer) | ||
135 | { | ||
136 | unsigned *pu; /* unaligned pointer */ | ||
137 | union { /* union needed to comply with C99 pointer aliasing rules */ | ||
138 | unsigned *pa; /* aligned pointer */ | ||
139 | void *pv; /* aligned pointer alias */ | ||
140 | } u; | ||
141 | |||
142 | FLAC__ASSERT(elements > 0); | ||
143 | FLAC__ASSERT(0 != unaligned_pointer); | ||
144 | FLAC__ASSERT(0 != aligned_pointer); | ||
145 | FLAC__ASSERT(unaligned_pointer != aligned_pointer); | ||
146 | |||
147 | pu = (unsigned*)FLAC__memory_alloc_aligned(sizeof(unsigned) * elements, &u.pv); | ||
148 | if(0 == pu) { | ||
149 | return false; | ||
150 | } | ||
151 | else { | ||
152 | if(*unaligned_pointer != 0) | ||
153 | free(*unaligned_pointer); | ||
154 | *unaligned_pointer = pu; | ||
155 | *aligned_pointer = u.pa; | ||
156 | return true; | ||
157 | } | ||
158 | } | ||
159 | |||
160 | #ifndef FLAC__INTEGER_ONLY_LIBRARY | ||
161 | |||
162 | FLAC__bool FLAC__memory_alloc_aligned_real_array(unsigned elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer) | ||
163 | { | ||
164 | FLAC__real *pu; /* unaligned pointer */ | ||
165 | union { /* union needed to comply with C99 pointer aliasing rules */ | ||
166 | FLAC__real *pa; /* aligned pointer */ | ||
167 | void *pv; /* aligned pointer alias */ | ||
168 | } u; | ||
169 | |||
170 | FLAC__ASSERT(elements > 0); | ||
171 | FLAC__ASSERT(0 != unaligned_pointer); | ||
172 | FLAC__ASSERT(0 != aligned_pointer); | ||
173 | FLAC__ASSERT(unaligned_pointer != aligned_pointer); | ||
174 | |||
175 | pu = (FLAC__real*)FLAC__memory_alloc_aligned(sizeof(FLAC__real) * elements, &u.pv); | ||
176 | if(0 == pu) { | ||
177 | return false; | ||
178 | } | ||
179 | else { | ||
180 | if(*unaligned_pointer != 0) | ||
181 | free(*unaligned_pointer); | ||
182 | *unaligned_pointer = pu; | ||
183 | *aligned_pointer = u.pa; | ||
184 | return true; | ||
185 | } | ||
186 | } | ||
187 | |||
188 | #endif | ||