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comparison src/libmlk-core/core/sound.c @ 320:8f9937403749

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misc: improve loading of data
author David Demelier <markand@malikania.fr>
date Fri, 01 Oct 2021 20:30:00 +0200
parents libmlk-core/core/sound.c@d01e83210ca2
children 9eb25198d706
comparison
equal deleted inserted replaced
319:b843eef4cc35 320:8f9937403749
1 /*
2 * sound.c -- sound support
3 *
4 * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <assert.h>
20 #include <stdio.h>
21
22 #include <SDL_mixer.h>
23
24 #include "error.h"
25 #include "sound.h"
26
27 int
28 sound_open(struct sound *snd, const char *path)
29 {
30 assert(snd);
31 assert(path);
32
33 if (!(snd->handle = Mix_LoadWAV(path)))
34 return errorf("%s", SDL_GetError());
35
36 return 0;
37 }
38
39 int
40 sound_openmem(struct sound *snd, const void *buffer, size_t buffersz)
41 {
42 assert(snd);
43 assert(buffer);
44
45 SDL_RWops *ops;
46
47 if (!(ops = SDL_RWFromConstMem(buffer, buffersz)) ||
48 !(snd->handle = Mix_LoadWAV_RW(ops, 1)))
49 return errorf("%s", SDL_GetError());
50
51 return 0;
52 }
53
54 int
55 sound_ok(const struct sound *snd)
56 {
57 return snd && snd->handle;
58 }
59
60 int
61 sound_play(struct sound *snd, int channel, unsigned int fadein)
62 {
63 assert(sound_ok(snd));
64
65 int ret;
66
67 if (fadein > 0)
68 ret = Mix_FadeInChannel(channel, snd->handle, 0, fadein);
69 else
70 ret = Mix_PlayChannel(channel, snd->handle, 0);
71
72 if (ret < 0)
73 return errorf("%s", SDL_GetError());
74
75 snd->channel = channel;
76
77 return 0;
78 }
79
80 void
81 sound_pause(struct sound *snd)
82 {
83 Mix_Pause(snd ? snd->channel : -1);
84 }
85
86 void
87 sound_resume(struct sound *snd)
88 {
89 Mix_Resume(snd ? snd->channel : -1);
90 }
91
92 void
93 sound_stop(struct sound *snd, unsigned int fadeout)
94 {
95 if (fadeout > 0)
96 Mix_FadeOutChannel(snd ? snd->channel : -1, fadeout);
97 else
98 Mix_HaltChannel(snd ? snd->channel : -1);
99 }
100
101 void
102 sound_finish(struct sound *snd)
103 {
104 assert(snd);
105
106 if (snd->handle) {
107 Mix_HaltChannel(snd->channel);
108 Mix_FreeChunk(snd->handle);
109 }
110
111 memset(snd, 0, sizeof (*snd));
112 }