/*    SDL - Simple DirectMedia Layer    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga    This library is free software; you can redistribute it and/or    modify it under the terms of the GNU Library General Public    License as published by the Free Software Foundation; either    version 2 of the License, or (at your option) any later version.    This library is distributed in the hope that it will be useful,    but WITHOUT ANY WARRANTY; without even the implied warranty of    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU    Library General Public License for more details.    You should have received a copy of the GNU Library General Public    License along with this library; if not, write to the Free    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA    Sam Lantinga    slouken@libsdl.org*/#ifdef SAVE_RCSIDstatic char rcsid = "@(#) $Id: SDL_ph_modes.c,v 1.8 2002/03/23 20:19:44 slouken Exp $";#endif#include "SDL_ph_modes_c.h"static unsigned long key1, key2;static PgVideoModeInfo_t mode_info;static PgVideoModes_t mode_list;  /* The current list of available video modes */SDL_Rect  SDL_modelist[PH_MAX_VIDEOMODES];SDL_Rect* SDL_modearray[PH_MAX_VIDEOMODES];static int compare_modes_by_res(const void* mode1, const void* mode2){	if (PgGetVideoModeInfo(*(unsigned short*)mode1, &mode_info) < 0)	{	    fprintf(stderr,"error: In compare_modes_by_res PgGetVideoModeInfo failed on mode: 0x%x\n",        	    *(unsigned short*)mode1);    	    return 0;	}	key1 = mode_info.width * mode_info.height;	if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode_info) < 0)	{    	    fprintf(stderr,"error: In compare_modes_by_res PgGetVideoModeInfo failed on mode: 0x%x\n",	            *(unsigned short*)mode2);	    return 0;	}        key2 = mode_info.width * mode_info.height;	if (key1 > key2)		return 1;	else if (key1 == key2)		return 0;	else		return -1;}SDL_Rect **ph_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags){    int i = 0;    int j = 0;    SDL_Rect Amodelist[PH_MAX_VIDEOMODES];    for (i=0; i<PH_MAX_VIDEOMODES; i++)    {        SDL_modearray[i]=&SDL_modelist[i];    }    if (PgGetVideoModeList( &mode_list ) < 0)    {       fprintf(stderr,"error: PgGetVideoModeList failed\n");       return NULL;    }    mode_info.bits_per_pixel = 0;    for (i=0; i < mode_list.num_modes; i++)     {        if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)        {            fprintf(stderr,"error: PgGetVideoModeInfo failed on mode: 0x%x\n", mode_list.modes[i]);            return NULL;        }        if(mode_info.bits_per_pixel == format->BitsPerPixel)        {            Amodelist[j].w = mode_info.width;            Amodelist[j].h = mode_info.height;            Amodelist[j].x = 0;            Amodelist[j].y = 0;            j++;	        }    }	    /* reorder biggest for smallest, assume width dominates */    for(i=0; i<j; i++)    {        SDL_modelist[i].w = Amodelist[j - i -1].w;        SDL_modelist[i].h = Amodelist[j - i -1].h;        SDL_modelist[i].x = Amodelist[j - i -1].x;        SDL_modelist[i].y = Amodelist[j - i -1].y;    }    SDL_modearray[j]=NULL;	    return SDL_modearray;}void ph_FreeVideoModes(_THIS){   return;}#if 0static void set_best_resolution(_THIS, int width, int height){    /* warning ! dead variable use_vidmode ! */    if ( use_vidmode ) {		PgDisplaySettings_t 	settings;		PgVideoModeInfo_t		current_mode_info;		PgHWCaps_t my_hwcaps;		unsigned short			current_bpp;        int i;	/*		if (PgGetVideoMode( &settings ) < 0)		{			fprintf(stderr,"error: PgGetVideoMode failed\n");			return;		}		if (PgGetVideoModeInfo( settings.mode, &current_mode_info ) < 0)		{			fprintf(stderr,"error: PgGetVideoModeInfo failed\n");			return;		}		*/		//lu_zero          if (PgGetGraphicsHWCaps(&my_hwcaps) < 0)         	{                fprintf(stderr,"set_best_resolution:  GetGraphicsHWCaps failed!! \n");      			//that HAVE to work            }         if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, &current_mode_info) < 0)            {                fprintf(stderr,"set_best_resolution:  PgGetVideoModeInfo failed\n");            }		current_bpp = current_mode_info.bits_per_pixel;        if (PgGetVideoModeList(&mode_list) >= 0)		{			qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res);#ifdef PH_DEBUG  			printf("Available modes:\n");  			for ( i = 0; i < mode_list.num_modes; ++i ) 			{				PgGetVideoModeInfo(mode_list.modes[i], &mode_info);    			printf("Mode %d: %dx%d\n", i, mode_info.width, mode_info.height);  			}#endif            for ( i = mode_list.num_modes-1; i >= 0 ; --i ) 			{				if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)				{					fprintf(stderr,"error: PgGetVideoModeInfo failed\n");				}                if ( (mode_info.width >= width) &&                     (mode_info.height >= height) &&					 (mode_info.bits_per_pixel == current_bpp) )                    break;            }			if (i >= 0)			{                if ( (mode_info.width != current_mode_info.width) ||                     (mode_info.height != current_mode_info.height) ) 				{					settings.mode = mode_list.modes[i];					if(PgSetVideoMode( &settings ) < 0)						{						fprintf(stderr,"error: PgSetVideoMode failed\n");					}                }            }        }    }}int ph_ResizeFullScreen(_THIS){    if (currently_fullscreen)    {        set_best_resolution(this, current_w, current_h);    }    return (1);}#endif /* 0 *//* return the mode associated with width, height and bpp *//* if there is no mode then zero is returned             */int get_mode(int width, int height, int bpp){    int i;    if(width<640)    {        width=640;    }    if(height<480)    {        height=480;    }    if (PgGetVideoModeList(&mode_list) < 0)    {        fprintf(stderr,"error: PgGetVideoModeList failed\n");        return -1;    }    /* search list for exact match */    for (i=0;i<mode_list.num_modes;i++)    {        if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)        {            fprintf(stderr,"error: PgGetVideoModeInfo failed\n");            return 0;        }        if ((mode_info.width == width) &&             (mode_info.height == height) &&             (mode_info.bits_per_pixel == bpp))        {            return mode_list.modes[i];        }    }    return (i == mode_list.num_modes) ? 0 : mode_list.modes[i];}int get_mode_any_format(int width, int height, int bpp)/* return the mode associated with width, height and bpp *//* if requested bpp is not found the mode with closest bpp is returned */{    int i, closest, delta, min_delta;	if (PgGetVideoModeList( &mode_list ) < 0)	{	    fprintf(stderr,"error: PgGetVideoModeList failed\n");	    return -1;	}	qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res);	for(i=0;i<mode_list.num_modes;i++)	{       if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)       {           fprintf(stderr,"error: PgGetVideoModeInfo failed\n");           return 0;       }       if ((mode_info.width == width) &&           (mode_info.height == height))           break;	}	if (i<mode_list.num_modes)	{		/* get closest bpp */		closest = i++;		if (mode_info.bits_per_pixel == bpp)			return mode_list.modes[ closest ];		min_delta = abs(mode_info.bits_per_pixel - bpp);		while(1)		{			if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)			{			    fprintf(stderr,"error: PgGetVideoModeInfo failed\n");			    return 0;			}			if ((mode_info.width != width) ||				(mode_info.height != height))				break;			else if (mode_info.bits_per_pixel == bpp)			{				closest = i;				break;			}			else			{				delta = abs(mode_info.bits_per_pixel - bpp);				if (delta < min_delta)				{					closest = i;					min_delta = delta;				}				i++;			}		}		return mode_list.modes[ closest ];	}	else    return 0;}void ph_WaitMapped(_THIS);void ph_WaitUnmapped(_THIS);void ph_QueueEnterFullScreen(_THIS);int ph_ToggleFullScreen(_THIS, int on){    if (currently_fullscreen)    {        return ph_LeaveFullScreen(this);    }    else    {        return ph_EnterFullScreen(this);    }          return 0;     }int ph_EnterFullScreen(_THIS){    if (!currently_fullscreen)    {        if (this->screen)        {            if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL)            {#ifdef HAVE_OPENGL#endif /* HAVE_OPENGL */                return 0;            }        }        if (OCImage.direct_context == NULL)        {            OCImage.direct_context=(PdDirectContext_t*)PdCreateDirectContext();        }        if (!OCImage.direct_context)        {            fprintf(stderr, "ph_EnterFullScreen: Can't create direct context\n" );        }        PdDirectStart(OCImage.direct_context);        currently_fullscreen = 1;    }    return 1;}int ph_LeaveFullScreen(_THIS){    PgDisplaySettings_t mymode_settings;           if (currently_fullscreen)    {        if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL)        {#ifdef HAVE_OPENGL#endif /* HAVE_OPENGL */           return 0;        }        else        {            PdDirectStop(OCImage.direct_context);            PdReleaseDirectContext(OCImage.direct_context);                        currently_fullscreen=0;            /* Restore old video mode */            if (old_video_mode != -1)            {                mymode_settings.mode= (unsigned short) old_video_mode;                mymode_settings.refresh= (unsigned short) old_refresh_rate;                mymode_settings.flags= 0;                                if (PgSetVideoMode(&mymode_settings) < 0)                {                    fprintf(stderr,"error: PgSetVideoMode failed\n");                }            }            old_video_mode=-1;            old_refresh_rate=-1;        }    }    return 1;}