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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 <SDL.h>
#include <stdlib.h>
#include "bgdrtm.h"
#include "libgrbase.h"
#include "libvideo.h"
#include "librender.h"
#include "bgddl.h"
#include "dlvaracc.h"
/* --------------------------------------------------------------------------- */
enum {
GRAPH_MODE = 0
};
/* --------------------------------------------------------------------------- */
DLVARFIXUP __bgdexport( mod_video, globals_fixup )[] =
{
/* Nombre de variable global, puntero al dato, tama�o del elemento, cantidad de elementos */
{ "graph_mode" , NULL, -1, -1 },
{ NULL , NULL, -1, -1 }
};
/* --------------------------------------------------------------------------- */
/* Funciones de inicializaci�n y carga */
static int modvideo_set_mode( INSTANCE * my, int * params )
{
return gr_set_mode( params[0] / 10000, params[0] % 10000, 0 ) ;
}
/* --------------------------------------------------------------------------- */
static int modvideo_set_mode_2( INSTANCE * my, int * params )
{
return gr_set_mode( params[0], params[1], 0 ) ;
}
/* --------------------------------------------------------------------------- */
static int modvideo_set_mode_3( INSTANCE * my, int * params )
{
GLODWORD( mod_video, GRAPH_MODE ) = (( GLODWORD( mod_video, GRAPH_MODE ) & 0xFF00 ) | params[2] );
return gr_set_mode( params[0], params[1], 0 ) ;
}
/* --------------------------------------------------------------------------- */
static int modvideo_set_mode_4( INSTANCE * my, int * params )
{
GLODWORD( mod_video, GRAPH_MODE ) = ( params[2] | params[3] );
return gr_set_mode( params[0], params[1], 0 ) ;
}
/* --------------------------------------------------------------------------- */
static int modvideo_set_fps( INSTANCE * my, int * params )
{
gr_set_fps( params[0], params[1] ) ;
return params[0];
}
/* --------------------------------------------------------------------------- */
static int get_sdl_flags( int flags )
{
int sdl_flags = SDL_HWPALETTE;
sdl_flags |= ( flags & MODE_FULLSCREEN ) ? SDL_FULLSCREEN : 0 ;
sdl_flags |= ( flags & MODE_DOUBLEBUFFER ) ? SDL_DOUBLEBUF : 0 ;
sdl_flags |= ( flags & MODE_HARDWARE ) ? SDL_HWSURFACE : SDL_SWSURFACE ;
sdl_flags |= ( flags & MODE_FRAMELESS ) ? SDL_NOFRAME : 0 ;
return sdl_flags;
}
/* --------------------------------------------------------------------------- */
/*
Return a pointer to an array of available screen dimensions for the given format and video flags,
sorted largest to smallest.
Returns NULL if there are no dimensions available for a particular format,
or -1 if any dimension is okay for the given format.
*/
static int modvideo_list_modes( INSTANCE * my, int * params )
{
SDL_Rect **modes;
SDL_PixelFormat vfmt;
int sdl_flags = get_sdl_flags( params[1] );
int depth = params[0];
int i, n;
static int * available_modes = NULL ;
if ( !depth ) depth = ( params[1] & MODE_32BITS ) ? 32 : (( params[1] & MODE_16BITS ) ? 16 : 8 );
vfmt.BitsPerPixel = depth ;
/* Get available fullscreen/hardware modes */
modes = SDL_ListModes( params[0] ? &vfmt : NULL, sdl_flags );
if ( modes == ( SDL_Rect ** )0 ) return 0; /* No video modes available for this criteria */
if ( modes == ( SDL_Rect ** ) - 1 ) return -1; /* Any video mode for this criteria */
n = 0;
for ( i = 0; modes[i]; ++i ) ++n ;
available_modes = realloc( available_modes, ( 1 + n ) * sizeof( int ) * 2 );
if ( !available_modes ) return -2;
for ( i = 0; modes[i]; ++i )
{
available_modes[i*2 ] = modes[i]->w;
available_modes[i*2+1] = modes[i]->h;
}
available_modes[i*2 ] = 0;
available_modes[i*2+1] = 0;
return ( int )available_modes;
}
/* --------------------------------------------------------------------------- */
/*
returns 0 if the requested mode is not supported under any bit depth,
or returns the bits-per-pixel of the closest available
mode with the given width, height and requested flags
params:
height,width,depth,flags
*/
static int modvideo_mode_is_ok( INSTANCE * my, int * params )
{
int sdl_flags = get_sdl_flags( params[3] );
int depth = params[2];
if ( !depth ) depth = ( params[3] & MODE_32BITS ) ? 32 : (( params[3] & MODE_16BITS ) ? 16 : 8 );
return ( SDL_VideoModeOK( params[0], params[1], depth, sdl_flags ) );
}
/* --------------------------------------------------------------------------- */
/* exports */
/* --------------------------------------------------------------------------- */
#include "mod_video_exports.h"
/* --------------------------------------------------------------------------- */
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