#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#define NEED_sv_2pv_flag
#include "ppport.h"
#include "defines.h"
#include "helper.h"

#include <SDL.h>

#ifdef HAVE_SDL_MIXER
#include <SDL_mixer.h>
#endif

#ifdef HAVE_SMPEG
#include <smpeg/smpeg.h>
#ifdef HAVE_SDL_MIXER
static int sdl_perl_use_smpeg_audio = 0;
#endif
#endif

#ifdef USE_THREADS
static SV * cb = (SV*)NULL;

void callback(int channel)
{
	dTHX;
	if(!aTHX) {
		PERL_SET_CONTEXT(parent_perl);
	}

	dSP;
	ENTER;
	SAVETMPS;

	PUSHMARK(SP);
	XPUSHs(sv_2mortal(newSViv(channel)));
	PUTBACK;

	if(cb)
		call_sv(cb, G_VOID);

	FREETMPS;
	LEAVE;
}
#endif

MODULE = SDL::Mixer::Channels 	PACKAGE = SDL::Mixer::Channels    PREFIX = mixchan_

=for documentation

SDL_mixer bindings

See: http://www.libsdl.org/projects/SDL_mixer/docs/SDL_mixer.html

=cut

#ifdef HAVE_SDL_MIXER

int
mixchan_allocate_channels ( number )
	int number
	CODE:
		RETVAL = Mix_AllocateChannels(number);
	OUTPUT:
		RETVAL


int
mixchan_volume ( channel, volume )
	int channel
	int volume
	CODE:
		RETVAL = Mix_Volume(channel,volume);
	OUTPUT:
		RETVAL

int
mixchan_play_channel ( channel, chunk, loops )
	int channel
	Mix_Chunk *chunk
	int loops
	CODE:
		RETVAL = Mix_PlayChannel(channel,chunk,loops);
	OUTPUT:
		RETVAL

int
mixchan_play_channel_timed ( channel, chunk, loops, ticks )
	int channel
	Mix_Chunk *chunk
	int loops
	int ticks
	CODE:
		RETVAL = Mix_PlayChannelTimed(channel,chunk,loops,ticks);
	OUTPUT:
		RETVAL


int
mixchan_fade_in_channel ( channel, chunk, loops, ms )
	int channel
	Mix_Chunk *chunk
	int loops
	int ms
	CODE:
		RETVAL = Mix_FadeInChannel(channel,chunk,loops,ms);
	OUTPUT:
		RETVAL

int
mixchan_fade_in_channel_timed ( channel, chunk, loops, ms, ticks )
	int channel
	Mix_Chunk *chunk
	int loops
	int ticks
	int ms
	CODE:
		RETVAL = Mix_FadeInChannelTimed(channel,chunk,loops,ms,ticks);
	OUTPUT:
		RETVAL

void
mixchan_pause ( channel )
	int channel
	CODE:
		Mix_Pause(channel);

void
mixchan_resume ( channel )
	int channel
	CODE:
		Mix_Resume(channel);

int
mixchan_halt_channel ( channel )
	int channel
	CODE:
		RETVAL = Mix_HaltChannel(channel);
	OUTPUT:
		RETVAL

int
mixchan_expire_channel ( channel, ticks )
	int channel
	int ticks
	CODE:
		RETVAL = Mix_ExpireChannel ( channel,ticks);
	OUTPUT:
		RETVAL

int
mixchan_fade_out_channel ( which, ms )
	int which
	int ms
	CODE:
		RETVAL = Mix_FadeOutChannel(which,ms);
	OUTPUT:
		RETVAL

#ifdef USE_THREADS

void
mixchan_channel_finished( fn )
	SV* fn
	CODE:
		if (cb == (SV*)NULL)
			cb = newSVsv(fn);
        else
			SvSetSV(cb, fn);

		GET_TLS_CONTEXT;
		Mix_ChannelFinished(&callback);

#else

void
mixchan_channel_finished( fn )
	SV* fn
	CODE:
		warn("Perl need to be compiled with 'useithreads' for SDL::Mixer::Channels::channel_finished( cb )");

#endif

int
mixchan_playing( channel )
	int channel
	CODE:
		RETVAL = Mix_Playing(channel);
	OUTPUT:
		RETVAL

int
mixchan_paused ( channel )
	int channel
	CODE:
		RETVAL = Mix_Paused(channel);
	OUTPUT:
		RETVAL

Mix_Fading
mixchan_fading_channel( which )
	int which
	CODE:
		RETVAL = Mix_FadingChannel(which);
	OUTPUT:
		RETVAL


Mix_Chunk *
mixchan_get_chunk(chan)
	int chan
	PREINIT:
		char* CLASS = "SDL::Mixer::MixChunk";
	CODE:
		Mix_Chunk *chunk = Mix_GetChunk(chan);
		Mix_Chunk *copy  = malloc(sizeof(Mix_Chunk));
		copy->abuf       = malloc( chunk->alen );
		memcpy( copy->abuf, chunk->abuf, chunk->alen );
		copy->alen       = chunk->alen;
		copy->volume     = chunk->volume;
		copy->allocated  = 1;
		RETVAL           = copy;
	OUTPUT:
		RETVAL

#endif