Mercurial > SDL_sound_CoreAudio

comparison decoders/timidity/testmidi.c @ 199:2d887640d300

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Initial add.
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 04 Jan 2002 06:49:49 +0000
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198:f9a752f41ab6 199:2d887640d300
1 /*
2 * SDL_sound -- An abstract sound format decoding API.
3 * Copyright (C) 2001 Ryan C. Gordon.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 /**
21 * Program to test the TiMidity core, without having to worry about decoder
22 * and/or playsound bugs. It's not meant to be robust or user-friendly.
23 */
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include "SDL.h"
28 #include "timidity.h"
29
30 int done_flag = 0;
31 MidiSong *song;
32
33 static void audio_callback(void *userdata, Uint8 *stream, int len)
34 {
35 if (Timidity_PlaySome(song, stream, len) == 0)
36 done_flag = 1;
37 }
38
39 int main(int argc, char *argv[])
40 {
41 SDL_AudioSpec audio;
42 SDL_RWops *rw;
43
44 if (SDL_Init(SDL_INIT_AUDIO) < 0)
45 {
46 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
47 return 1;
48 }
49
50 atexit(SDL_Quit);
51
52 if (argc != 2)
53 {
54 fprintf(stderr, "Usage: %s midifile\n", argv[0]);
55 return 1;
56 }
57
58 audio.freq = 44100;
59 audio.format = AUDIO_S16SYS;
60 audio.channels = 2;
61 audio.samples = 4096;
62 audio.callback = audio_callback;
63
64 if (SDL_OpenAudio(&audio, NULL) < 0)
65 {
66 fprintf(stderr, "Couldn't open audio device. %s\n", SDL_GetError());
67 return 1;
68 }
69
70 if (Timidity_Init() < 0)
71 {
72 fprintf(stderr, "Could not initialise TiMidity.\n");
73 return 1;
74 }
75
76 rw = SDL_RWFromFile(argv[1], "rb");
77 if (rw == NULL)
78 {
79 fprintf(stderr, "Could not create RWops from MIDI file.\n");
80 return 1;
81 }
82
83 song = Timidity_LoadSong(rw, &audio);
84 SDL_RWclose(rw);
85
86 if (song == NULL)
87 {
88 fprintf(stderr, "Could not open MIDI file.\n");
89 return 1;
90 }
91
92 Timidity_SetVolume(song, 100);
93 Timidity_Start(song);
94
95 SDL_PauseAudio(0);
96 while (!done_flag)
97 {
98 SDL_Delay(10);
99 }
100 SDL_PauseAudio(1);
101 Timidity_FreeSong(song);
102 Timidity_Exit();
103
104 return 0;
105 }