minexample.c

#include <math.h>
#include <stdio.h>
#include <SDL/SDL.h>

#include "modplay.h"

#define SAMPLERATE 44100

void SDL_Callback(void *data, uint8_t *stream, int len) {
	ModPlayerStatus_t *mp = RenderMOD((short *)stream, len / (sizeof(short) * 2));
}

SDL_AudioSpec sdl_audio = {
	.freq = SAMPLERATE,
	.format = AUDIO_S16,
	.channels = 2,
	.samples = 1024,
	.callback = SDL_Callback
};

int main(int argc, char *argv[]) {
	if(argc != 2) {
		printf("Usage: %s modfile\n", argv[0]);
		exit(1);
	}

	FILE *f = fopen(argv[1], "rb");

	if(f == NULL) {
		printf("Error loading file!\n");
		exit(1);
	}

	fseek(f, 0, SEEK_END);
	int tune_len = ftell(f);
	fseek(f, 0, SEEK_SET);

	uint8_t *tune = malloc(tune_len);
	fread(tune, 1, tune_len, f);
	fclose(f);

	if(!InitMOD(tune, SAMPLERATE)) {
		printf("Invalid file!\n");
		exit(1);
	}

	printf("Playing %s...\nPress Ctrl+C (or send SIGINT) to stop.\n", argv[1]);

	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO);
	SDL_OpenAudio(&sdl_audio, 0);

	SDL_PauseAudio(0);
	
	SDL_Event event;

	while(1) {
		while(SDL_PollEvent(&event)) {
			switch(event.type) {
				case SDL_QUIT:
					printf("Quitting.\n");
					SDL_Quit();
					exit(0);
					break;
			}
		}

		SDL_Delay(100);
	}
}