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199
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1 /*
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2 * SDL_sound -- An abstract sound format decoding API.
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3 * Copyright (C) 2001 Ryan C. Gordon.
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4 *
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5 * This library is free software; you can redistribute it and/or
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6 * modify it under the terms of the GNU Lesser General Public
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7 * License as published by the Free Software Foundation; either
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8 * version 2.1 of the License, or (at your option) any later version.
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9 *
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10 * This library is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Lesser General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Lesser General Public
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16 * License along with this library; if not, write to the Free Software
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17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18 */
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19
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20 /**
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21 * Program to test the TiMidity core, without having to worry about decoder
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22 * and/or playsound bugs. It's not meant to be robust or user-friendly.
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23 */
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24
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25 #include <stdio.h>
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26 #include <stdlib.h>
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27 #include "SDL.h"
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28 #include "timidity.h"
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29
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30 int done_flag = 0;
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31 MidiSong *song;
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32
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33 static void audio_callback(void *userdata, Uint8 *stream, int len)
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34 {
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35 if (Timidity_PlaySome(song, stream, len) == 0)
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36 done_flag = 1;
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37 }
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38
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39 int main(int argc, char *argv[])
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40 {
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41 SDL_AudioSpec audio;
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42 SDL_RWops *rw;
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43
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44 if (SDL_Init(SDL_INIT_AUDIO) < 0)
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45 {
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46 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
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47 return 1;
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48 }
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49
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50 atexit(SDL_Quit);
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51
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52 if (argc != 2)
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53 {
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54 fprintf(stderr, "Usage: %s midifile\n", argv[0]);
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55 return 1;
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56 }
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57
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58 audio.freq = 44100;
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59 audio.format = AUDIO_S16SYS;
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60 audio.channels = 2;
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61 audio.samples = 4096;
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62 audio.callback = audio_callback;
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63
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64 if (SDL_OpenAudio(&audio, NULL) < 0)
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65 {
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66 fprintf(stderr, "Couldn't open audio device. %s\n", SDL_GetError());
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67 return 1;
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68 }
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69
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70 if (Timidity_Init() < 0)
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71 {
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72 fprintf(stderr, "Could not initialise TiMidity.\n");
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73 return 1;
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74 }
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75
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76 rw = SDL_RWFromFile(argv[1], "rb");
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77 if (rw == NULL)
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78 {
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79 fprintf(stderr, "Could not create RWops from MIDI file.\n");
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80 return 1;
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81 }
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82
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83 song = Timidity_LoadSong(rw, &audio);
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84 SDL_RWclose(rw);
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85
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86 if (song == NULL)
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87 {
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88 fprintf(stderr, "Could not open MIDI file.\n");
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89 return 1;
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90 }
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91
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92 Timidity_SetVolume(song, 100);
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93 Timidity_Start(song);
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94
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95 SDL_PauseAudio(0);
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96 while (!done_flag)
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97 {
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98 SDL_Delay(10);
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99 }
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100 SDL_PauseAudio(1);
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101 Timidity_FreeSong(song);
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102 Timidity_Exit();
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103
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104 return 0;
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105 }
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