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annotate src/core/sound.c @ 103:68ce8e02061a

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sound: add basic sound API
author David Demelier <markand@malikania.fr>
date Tue, 31 Mar 2020 21:00:00 +0200
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1 /*
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2 * sound.c -- sound support
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stdio.h>
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21
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22 #include <SDL_mixer.h>
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23
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24 #include "sound.h"
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25 #include "error_p.h"
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26
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27 bool
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28 sound_open(struct sound *snd, const char *path)
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29 {
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30 assert(snd);
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31 assert(path);
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32
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33 if (!(snd->handle = Mix_LoadMUS(path)))
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34 return error_sdl();
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35
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36 return true;
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37 }
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38
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39 bool
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40 sound_openmem(struct sound *snd, const void *buffer, size_t buffersz)
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41 {
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42 assert(snd);
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43 assert(buffer);
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44
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45 SDL_RWops *ops;
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46
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47 if (!(ops = SDL_RWFromConstMem(buffer, buffersz)) ||
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48 !(snd->handle = Mix_LoadMUS_RW(ops, true)))
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49 return error_sdl();
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50
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51 return true;
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52 }
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53
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54 bool
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55 sound_play(struct sound *snd)
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56 {
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57 assert(snd);
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58
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59 int n = 1;
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60
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61 if (snd->flags & SOUND_LOOP)
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62 n = -1;
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63 if (Mix_PlayMusic(snd->handle, n) < 0)
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64 return error_sdl();
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65
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66 return true;
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67 }
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68
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69 void
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70 sound_pause(struct sound *snd)
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71 {
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72 /* Not needed yet. */
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73 (void)snd;
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74
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75 Mix_PauseMusic();
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76 }
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77
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78 void
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79 sound_resume(struct sound *snd)
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80 {
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81 /* Not needed yet. */
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82 (void)snd;
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83
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84 Mix_ResumeMusic();
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85 }
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86
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87 void
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88 sound_stop(struct sound *snd)
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89 {
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90 /* Not needed yet. */
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91 (void)snd;
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92
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93 Mix_HaltMusic();
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94 }
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95
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96 void
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97 sound_finish(struct sound *snd)
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98 {
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99 assert(snd);
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100
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101 if (snd->handle) {
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102 Mix_HaltMusic();
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103 Mix_FreeMusic(snd->handle);
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104 }
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105
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106 memset(snd, 0, sizeof (*snd));
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107 }