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/*
* Copyright � 2006-2016 SplinterGU (Fenix/Bennugd)
* Copyright � 2002-2006 Fenix Team (Fenix)
* Copyright � 1999-2002 Jos� Luis Cebri�n Pag�e (Fenix)
*
* This file is part of Bennu - Game Development
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
*/
/* --------------------------------------------------------------------------- */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <SDL.h>
#include "bgddl.h"
#include "bgdrtm.h"
#include "xstrings.h"
#include "dlvaracc.h"
/* --------------------------------------------------------------------------- */
static SDL_CD * sdl_cd = NULL;
static int sdl_cdnum = -1;
/* ----------------------------------------------------------------- */
enum {
CD_TRACK = 0,
CD_FRAME,
CD_TRACKS,
CD_MINUTE,
CD_SECOND,
CD_SUBFRAME,
CD_MINUTES,
CD_SECONDS,
CD_FRAMES,
CD_TRACKINFO
};
/* ----------------------------------------------------------------- */
/* Son las variables que se desea acceder. */
/* El interprete completa esta estructura, si la variable existe. */
/* (usada en tiempo de ejecucion) */
DLVARFIXUP __bgdexport( mod_cd, globals_fixup )[] =
{
/* Nombre de variable global, puntero al dato, tama�o del elemento, cantidad de elementos */
{ "cdinfo.current_track", NULL, -1, -1 },
{ "cdinfo.current_frame", NULL, -1, -1 },
{ "cdinfo.tracks", NULL, -1, -1 },
{ "cdinfo.minute", NULL, -1, -1 },
{ "cdinfo.second", NULL, -1, -1 },
{ "cdinfo.subframe", NULL, -1, -1 },
{ "cdinfo.minutes", NULL, -1, -1 },
{ "cdinfo.seconds", NULL, -1, -1 },
{ "cdinfo.subframes", NULL, -1, -1 },
{ "cdinfo.track", NULL, -1, -1 },
{ NULL, NULL, -1, -1 }
};
/* ----------------------------------------------------------------- */
/**
int CD_DRIVES()
Returns the number of CD drives in the system
**/
static int modcd_drives( INSTANCE * my, int * params )
{
return SDL_CDNumDrives();
}
/* --------------------------------------------------------------------------- */
/**
int CD_STATUS (int CD)
Returns the status of a CD (using SDL constants)
**/
static int modcd_status( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
return SDL_CDStatus( sdl_cd );
}
/* --------------------------------------------------------------------------- */
/**
string CD_NAME (int CD)
Returns a human-readable string with the name of a CD drive
**/
static int modcd_name( INSTANCE * my, int * params )
{
int result;
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
result = string_new( SDL_CDName( params[0] ) );
string_use( result );
return result;
}
/* --------------------------------------------------------------------------- */
/**
CD_GETINFO(int CD)
Fills the global structure CD with information about the current CD
Returns 1 if there is a valid CD in the drive or 0 otherwise
**/
static int modcd_getinfo( INSTANCE * my, int * params )
{
int i, total = 0;
char * trackinfo;
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
GLODWORD( mod_cd, CD_TRACKS ) = sdl_cd->numtracks;
GLODWORD( mod_cd, CD_TRACK ) = sdl_cd->cur_track;
FRAMES_TO_MSF( sdl_cd->cur_frame, &GLODWORD( mod_cd, CD_MINUTE ), &GLODWORD( mod_cd, CD_SECOND ), &GLODWORD( mod_cd, CD_SUBFRAME ) );
trackinfo = ( char * ) & GLODWORD( mod_cd, CD_TRACKINFO );
for ( i = 0; i < sdl_cd->numtracks ; i++, trackinfo += 16 )
{
total += sdl_cd->track[i].length;
*( Uint32 * ) trackinfo = ( sdl_cd->track[i].type == SDL_AUDIO_TRACK );
FRAMES_TO_MSF( sdl_cd->track[i].length, trackinfo + 4, trackinfo + 8, trackinfo + 12 );
}
FRAMES_TO_MSF( total, &GLODWORD( mod_cd, CD_MINUTES ), &GLODWORD( mod_cd, CD_SECONDS ), &GLODWORD( mod_cd, CD_FRAMES ) );
return 1;
}
/* --------------------------------------------------------------------------- */
/**
CD_PLAY (int CD, int TRACK)
Starts playing a track of the given CD
**/
static int modcd_play( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
if ( CD_INDRIVE( SDL_CDStatus( sdl_cd ) ) )
return !SDL_CDPlayTracks( sdl_cd, params[1], 0, 1, 0 );
return 0;
}
/* --------------------------------------------------------------------------- */
/**
CD_PLAY (int CD, int TRACK, int NUMTRACKS)
Plays a series of tracks of the CD
**/
static int modcd_playtracks( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
if ( CD_INDRIVE( SDL_CDStatus( sdl_cd ) ) )
return !SDL_CDPlayTracks( sdl_cd, params[1], 0, params[2], 0 );
return 0;
}
/* --------------------------------------------------------------------------- */
/**
CD_EJECT (int CD)
Ejects a CD
**/
static int modcd_eject( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
return !SDL_CDEject( sdl_cd );
}
/* --------------------------------------------------------------------------- */
/**
CD_PAUSE (int CD)
Pauses the CD playing
**/
static int modcd_pause( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
return !SDL_CDPause( sdl_cd );
}
/* --------------------------------------------------------------------------- */
/**
CD_RESUME (int CD)
Resumes a CD in pause
**/
static int modcd_resume( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
return !SDL_CDResume( sdl_cd );
}
/* --------------------------------------------------------------------------- */
/**
CD_STOP (int CD)
Stops the CD
**/
static int modcd_stop( INSTANCE * my, int * params )
{
if ( params[0] < 0 || params[0] >= SDL_CDNumDrives() ) return 0;
if ( sdl_cd == NULL || sdl_cdnum != params[0] )
{
if ( sdl_cd ) SDL_CDClose( sdl_cd );
sdl_cd = SDL_CDOpen( params[0] );
if ( sdl_cd == NULL ) return 0;
sdl_cdnum = params[0];
}
return !SDL_CDStop( sdl_cd );
}
/* --------------------------------------------------------------------------- */
/* Funciones de inicializacion del modulo/plugin */
void __bgdexport( mod_cd, module_initialize )()
{
if ( !SDL_WasInit( SDL_INIT_CDROM ) ) SDL_InitSubSystem( SDL_INIT_CDROM );
}
/* --------------------------------------------------------------------------- */
void __bgdexport( mod_cd, module_finalize )()
{
if ( SDL_WasInit( SDL_INIT_CDROM ) ) SDL_QuitSubSystem( SDL_INIT_CDROM );
}
/* --------------------------------------------------------------------------- */
/* exports */
/* --------------------------------------------------------------------------- */
#include "mod_cd_exports.h"
/* --------------------------------------------------------------------------- */
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