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annotate examples/example-sound.c @ 156:c3a40062acc2

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misc: create more generic startup function, closes #2500
author David Demelier <markand@malikania.fr>
date Fri, 16 Oct 2020 13:54:31 +0200
parents aa6e70e330a1
children
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1 /*
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2 * example-sound.c -- show how to use sounds
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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 <core/clock.h>
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20 #include <core/core.h>
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21 #include <core/event.h>
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22 #include <core/painter.h>
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23 #include <core/panic.h>
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24 #include <core/sound.h>
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25 #include <core/sys.h>
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26 #include <core/util.h>
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27 #include <core/window.h>
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28
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29 #include <ui/label.h>
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30 #include <ui/theme.h>
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31 #include <ui/ui.h>
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32
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33 /* https://freesound.org/people/VABsounds/sounds/423658 */
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34 #include <assets/sounds/vabsounds-romance.h>
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35
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36 #define W 1280
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37 #define H 720
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38
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39 static struct sound sound;
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40 static struct label label = {
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41 .text = "Keys: <s> start, <p> pause, <r> resume, <q> stop, <l> loop",
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42 .x = 10,
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43 .y = 10,
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44 .flags = LABEL_FLAGS_SHADOW
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45 };
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46
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47 static void
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48 init(void)
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49 {
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50 if (!core_init() || !ui_init())
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51 panic();
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52 if (!window_open("Example - Sound", W, H))
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53 panic();
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54 if (!sound_openmem(&sound, sounds_vabsounds_romance, sizeof (sounds_vabsounds_romance)))
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55 panic();
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56 }
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57
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58 static void
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59 quit(void)
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60 {
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61 window_finish();
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62 ui_finish();
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63 core_finish();
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64 }
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65
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66 static void
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67 run(void)
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68 {
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69 struct clock clock = {0};
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70
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71 clock_start(&clock);
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72
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73 for (;;) {
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74 union event ev;
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75 unsigned int elapsed = clock_elapsed(&clock);
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76
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77 clock_start(&clock);
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78
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79 while (event_poll(&ev)) {
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80 switch (ev.type) {
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81 case EVENT_KEYDOWN:
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82 switch (ev.key.key) {
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83 case KEY_s:
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84 sound_play(&sound);
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85 break;
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86 case KEY_p:
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87 sound_pause(&sound);
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88 break;
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89 case KEY_r:
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90 sound_resume(&sound);
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91 break;
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92 case KEY_q:
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93 sound_stop(&sound);
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94 break;
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95 case KEY_l:
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96 sound.flags ^= SOUND_LOOP;
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97 sound_play(&sound);
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98 break;
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99 default:
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100 break;
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101 }
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102 break;
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103 case EVENT_QUIT:
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104 return;
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105 default:
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106 break;
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107 }
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108 }
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109
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110 painter_set_color(0x006554ff);
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111 painter_clear();
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112 label_draw(&label);
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113 painter_present();
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114
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115 if ((elapsed = clock_elapsed(&clock)) < 20)
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116 delay(20 - elapsed);
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117 }
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118 }
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119
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120 int
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121 main(int argc, char **argv)
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122 {
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123 (void)argc;
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124 (void)argv;
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125
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126 init();
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127 run();
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128 quit();
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129 }