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annotate libcore/core/sound.c @ 220:617fda414bbb

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js: remove Javascript API for now While convenient, I have been recommended that a scripting language would be a performance and debug disaster.
author David Demelier <markand@malikania.fr>
date Wed, 18 Nov 2020 15:07:43 +0100
parents d3ef968745f5
children
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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 "error.h"
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25 #include "sound.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_LoadWAV(path)))
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34 return errorf("%s", SDL_GetError());
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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_LoadWAV_RW(ops, true)))
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49 return errorf("%s", SDL_GetError());
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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_ok(const struct sound *snd)
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56 {
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57 return snd && snd->handle;
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58 }
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59
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60 bool
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61 sound_play(struct sound *snd, int channel, unsigned int fadein)
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62 {
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63 assert(sound_ok(snd));
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64
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65 int ret;
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66
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67 if (fadein > 0)
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68 ret = Mix_FadeInChannel(channel, snd->handle, 0, fadein);
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69 else
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70 ret = Mix_PlayChannel(channel, snd->handle, 0);
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71
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72 if (ret < 0)
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73 return errorf("%s", SDL_GetError());
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75 snd->channel = channel;
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76
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77 return true;
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78 }
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79
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80 void
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81 sound_pause(struct sound *snd)
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82 {
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83 Mix_Pause(snd ? snd->channel : -1);
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84 }
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85
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86 void
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87 sound_resume(struct sound *snd)
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88 {
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89 Mix_Resume(snd ? snd->channel : -1);
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90 }
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91
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92 void
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93 sound_stop(struct sound *snd, unsigned int fadeout)
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94 {
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95 if (fadeout > 0)
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96 Mix_FadeOutChannel(snd ? snd->channel : -1, fadeout);
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97 else
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98 Mix_HaltChannel(snd ? snd->channel : -1);
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99 }
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100
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101 void
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102 sound_finish(struct sound *snd)
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103 {
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104 assert(snd);
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105
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106 if (snd->handle) {
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107 Mix_HaltChannel(snd->channel);
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108 Mix_FreeChunk(snd->handle);
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109 }
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110
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111 memset(snd, 0, sizeof (*snd));
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112 }