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3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * | |
3 | * --------------------------------------------------------------------------------------- | |
4 | * The following license statement only applies to this file (trans_stream.c). | |
5 | * --------------------------------------------------------------------------------------- | |
6 | * | |
7 | * Permission is hereby granted, free of charge, | |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation the rights to | |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <streams/trans_stream.h> | |
24 | ||
25 | /** | |
26 | * trans_stream_trans_full: | |
27 | * @data : (optional) existing stream data, or a target | |
28 | * for the new stream data to be saved | |
29 | * @in : input data | |
30 | * @in_size : input size | |
31 | * @out : output data | |
32 | * @out_size : output size | |
33 | * @error : (optional) output for error code | |
34 | * | |
35 | * Perform a full transcoding from a source to a destination. | |
36 | */ | |
37 | bool trans_stream_trans_full( | |
38 | struct trans_stream_backend *backend, void **data, | |
39 | const uint8_t *in, uint32_t in_size, | |
40 | uint8_t *out, uint32_t out_size, | |
41 | enum trans_stream_error *error) | |
42 | { | |
43 | void *rdata; | |
44 | bool ret; | |
45 | uint32_t rd, wn; | |
46 | ||
47 | if (data && *data) | |
48 | rdata = *data; | |
49 | else | |
50 | { | |
51 | if (!(rdata = backend->stream_new())) | |
52 | { | |
53 | if (error) | |
54 | *error = TRANS_STREAM_ERROR_ALLOCATION_FAILURE; | |
55 | return false; | |
56 | } | |
57 | } | |
58 | ||
59 | backend->set_in(rdata, in, in_size); | |
60 | backend->set_out(rdata, out, out_size); | |
61 | ret = backend->trans(rdata, true, &rd, &wn, error); | |
62 | ||
63 | if (data) | |
64 | *data = rdata; | |
65 | else | |
66 | backend->stream_free(rdata); | |
67 | ||
68 | return ret; | |
69 | } | |
70 | ||
71 | const struct trans_stream_backend* trans_stream_get_zlib_deflate_backend(void) | |
72 | { | |
73 | #if HAVE_ZLIB | |
74 | return &zlib_deflate_backend; | |
75 | #else | |
76 | return NULL; | |
77 | #endif | |
78 | } | |
79 | ||
80 | const struct trans_stream_backend* trans_stream_get_zlib_inflate_backend(void) | |
81 | { | |
82 | #if HAVE_ZLIB | |
83 | return &zlib_inflate_backend; | |
84 | #else | |
85 | return NULL; | |
86 | #endif | |
87 | } | |
88 | ||
89 | const struct trans_stream_backend* trans_stream_get_pipe_backend(void) | |
90 | { | |
91 | return &pipe_backend; | |
92 | } |