mixer.c

#include <SDL_mixer.h>
#include "mixer.h"
#include "miau.h"

Mix_Music* resplandescente;
Mix_Music* bianca_kalutor_e_o_demonio;
Mix_Chunk* miau;
Mix_Chunk* uai;

void mix_sample(Mix_Chunk* x)
{
	if (Mix_PlayChannel(0, x, 0))
		erorr("Mix_PlayChannel: %s", Mix_GetError());
}

void mix_miau()
{
	mix_sample(miau);
}

void mix_uai()
{
	mix_sample(uai);
}

void mix_frame()
{
}

static Mix_Chunk* load_chunk(const char* path)
{
	Mix_Chunk* chunk;

	chunk = Mix_LoadWAV(path);
	if (!chunk)
		die(-1, "Failed to load audio sample: %s: %s", path, Mix_GetError());

	return chunk;
}

static Mix_Music* load_music(const char* path)
{
	Mix_Music* music;

	music = Mix_LoadMUS(path);
	if (!music)
		die(-1, "Failed to load music: %s: %s", path, Mix_GetError());

	return music;
}

static void play_music(Mix_Music* music, int n)
{
	if(Mix_PlayMusic(music, n))
		die(-1, "Failed to play music: %s", Mix_GetError());
}

void mix_bianca_kalutor_e_o_demonio()
{
	static unsigned long t1 = 0, t2;

	t2 = SDL_GetTicks();

	if (t1 == 0 || 20000 < t2 - t1)
	{
		play_music(bianca_kalutor_e_o_demonio, 1);
		t1 = t2;
	}
}

void mix_init()
{
	int flags;
	int x;
       
	info ("Initializing SDL mixer.");

	if (SDL_InitSubSystem(SDL_INIT_AUDIO))
		die(-1, "Failed to initialize SDL: %s", SDL_GetError());

	/* FIXME: do a Mix_Init() twice with Mix_OpenAudio in between, otherwise
	 * it will report the MP3 driver as not available */
	flags = 0;
	if ((flags & (x = Mix_Init(flags))) != flags)
		die(-1, "Failed to init SDL_Mixer: %s", Mix_GetError());

	Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 4096);

	flags = MIX_INIT_MP3;
	if ((flags & (x = Mix_Init(flags))) != flags)
		die(-1, "Failed to init SDL_Mixer: %s", Mix_GetError());

	Mix_AllocateChannels(1);

	resplandescente = load_music("assets/resplandescente.mp3");
	bianca_kalutor_e_o_demonio = load_music("assets/bianca_kalutor_e_o_demonio.mp3");
	miau = load_chunk("assets/miau.mp3");
	uai = load_chunk("assets/uai.mp3");

	play_music(resplandescente, -1);
}

void mix_fini()
{
	Mix_CloseAudio();
	Mix_Quit();
	SDL_QuitSubSystem(SDL_INIT_AUDIO);
}