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#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>
#include "sndfile.h"
#include "fmt.h"
/*
* gcc -O2 -o playit-sdl2 playit-sdl2.c -I.. -I../src/include -DHAVE_CONFIG_H -lm `pkg-config sdl2 --cflags --libs` -s ../src/libplayit.a
*/
static song_t * song_load_it(const char *file)
{
slurp_t *s;
song_t *song;
s = slurp(file, NULL, 0);
if (!s) {
printf("failed to open \"%s\"\n", file);
goto _fail;
}
song = csf_allocate();
if (!song) {
printf("failed to allocate song\n");
goto _fail_slurp;
}
if (fmt_it_load_song(song, s, 0) != LOAD_SUCCESS)
goto _fail_song;
unslurp(s);
return song;
_fail_song:
csf_free(song);
_fail_slurp:
unslurp(s);
_fail:
return NULL;
}
static SDL_AudioDeviceID sdl2_open(const char *device)
{
SDL_AudioDeviceID dev;
SDL_AudioSpec aspec = {
.freq = 44100,
.format = AUDIO_S16,
.channels = 2,
.samples = 4096,
};
if (SDL_Init(SDL_INIT_AUDIO) != 0) {
printf("Failed to initialize SDL w/audio!\n");
return -1;
}
dev = SDL_OpenAudioDevice(device, 0, &aspec, NULL, 0);
if (dev < 0) {
printf("Failed to open SDL audio device!\n");
return -1;
}
SDL_PauseAudioDevice(dev, 0);
return dev;
}
static void sdl2_close(SDL_AudioDeviceID dev)
{
SDL_CloseAudioDevice(dev);
}
int main(int argc, char *argv[])
{
song_t *song;
uint8_t buf[8192];
int len;
SDL_AudioDeviceID dev;
if (argc != 2) {
printf("usage: %s song.it\n", argv[0]);
goto _fail;
}
song = song_load_it(argv[1]);
if (!song) {
printf("failed to load song!\n");
goto _fail;
}
if (!(dev = sdl2_open(NULL))) {
printf("Failed to open audio!\n");
goto _fail_song;
}
csf_set_current_order(song, 0);
song->repeat_count = 0;
song->buffer_count = 0;
song->stop_at_order = -1;
song->stop_at_row = -1;
song->flags &= ~(SONG_PAUSED | SONG_PATTERNLOOP | SONG_ENDREACHED);
csf_reset_playmarks(song);
csf_set_resampling_mode(song, SRCMODE_LINEAR);
csf_set_wave_config(song, 44100, 16, 2);
while ((len = csf_read(song, buf, sizeof(buf)))) {
int err;
while (SDL_GetQueuedAudioSize(dev) > 8192)
SDL_Delay(10);
if ((err = SDL_QueueAudio(dev, buf, len * 4)) < 0) {
fprintf(stderr, "write failed (%s)\n", SDL_GetError());
break;
}
}
sdl2_close(dev);
return EXIT_SUCCESS;
_fail_song:
/* TODO cleanup song */
_fail:
return EXIT_FAILURE;
}
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