SDL_ph_modes.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997, 1998, 1999, 2000, 2001 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
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slouken@libsdl.org
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*/
#ifdef SAVE_RCSID
static char rcsid =
"@(#) $Id$";
#endif
#include "SDL_ph_modes_c.h"
static unsigned long key1, key2;
static PgVideoModeInfo_t mode_info;
static PgVideoModes_t mode_list;
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/* The current list of available video modes */
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SDL_Rect SDL_modelist[PH_MAX_VIDEOMODES];
SDL_Rect* SDL_modearray[PH_MAX_VIDEOMODES];
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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);
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return 0;
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}
key1 = mode_info.width * mode_info.height;
if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode_info) < 0)
{
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fprintf(stderr,"error: In compare_modes_by_res PgGetVideoModeInfo failed on mode: 0x%x\n",
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*(unsigned short*)mode2);
return 0;
}
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key2 = mode_info.width * mode_info.height;
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if (key1 > key2)
return 1;
else if (key1 == key2)
return 0;
else
return -1;
}
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static int compare_modes_by_bpp(const void* mode1, const void* mode2)
{
if (PgGetVideoModeInfo(*(unsigned short*)mode1, &mode_info) < 0)
{
fprintf(stderr,"error: In compare_modes_by_bpp PgGetVideoModeInfo failed on mode: 0x%x\n",
*(unsigned short*)mode1);
return 0;
}
key1 = mode_info.bits_per_pixel;
if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode_info) < 0)
{
fprintf(stderr,"error: In compare_modes_by_bpp PgGetVideoModeInfo failed on mode: 0x%x\n",
*(unsigned short*)mode2);
return 0;
}
key2 = mode_info.bits_per_pixel;
if (key1 > key2)
return 1;
else if (key1 == key2)
return 0;
else
return -1;
}
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int ph_GetVideoModes(_THIS)
{
unsigned short *front;
int i, bpp_group_size;
// TODO: add mode_list member to _THIS
if (PgGetVideoModeList( &mode_list ) < 0)
{
fprintf(stderr,"error: PgGetVideoModeList failed\n");
return -1;
}
// sort list first by bits per pixel (bpp),
// then sort groups with same bpp by resolution.
qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_bpp);
bpp_group_size = 1;
front = &mode_list.modes[0];
for(i=0;i<mode_list.num_modes-2;i++)
{
if (compare_modes_by_bpp(&mode_list.modes[i],&mode_list.modes[i+1]))
{
qsort(front, bpp_group_size, sizeof(unsigned short), compare_modes_by_res);
front = &mode_list.modes[i+1];
bpp_group_size = 1;
}
else
{
bpp_group_size++;
}
}
//SDL_modelist = (SDL_Rect **)malloc((mode_list.num_modes+1)*sizeof(SDL_Rect *));
if ( SDL_modelist ) {
for (i=0;i<mode_list.num_modes;i++) {
// SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
// if ( SDL_modelist[i] == NULL ) {
// break;
// }
if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0)
{
fprintf(stderr,"error: PgGetVideoModeInfo failed on mode: 0x%x\n",
mode_list.modes[i]);
return -1;
}
SDL_modelist[i].x = 0;
SDL_modelist[i].y = 0;
SDL_modelist[i].w = mode_info.height;
SDL_modelist[i].h = mode_info.width;
}
//SDL_modelist[i] = NULL;
}
else
{
fprintf(stderr,"error: malloc failed on SDL_modelist\n");
return -1;
}
return 0;
}
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SDL_Rect **ph_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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{
int i = 0;
int j = 0;
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SDL_Rect Amodelist[PH_MAX_VIDEOMODES];
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for (i=0; i<PH_MAX_VIDEOMODES; i++)
{
SDL_modearray[i]=&SDL_modelist[i];
}
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if (PgGetVideoModeList( &mode_list ) < 0)
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{
fprintf(stderr,"error: PgGetVideoModeList failed\n");
return NULL;
}
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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;
}
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if(mode_info.bits_per_pixel == format->BitsPerPixel)
{
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Amodelist[j].w = mode_info.width;
Amodelist[j].h = mode_info.height;
Amodelist[j].x = 0;
Amodelist[j].y = 0;
j++;
}
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}
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//reorder biggest for smallest, assume width dominates
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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;
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}
void ph_FreeVideoModes(_THIS)
{
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return;
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}
static void set_best_resolution(_THIS, int width, int height)
{
if ( use_vidmode ) {
PgDisplaySettings_t settings;
PgVideoModeInfo_t current_mode_info;
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PgHWCaps_t my_hwcaps;
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unsigned short current_bpp;
int i;
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if (PgGetVideoMode( &settings ) < 0)
{
fprintf(stderr,"error: PgGetVideoMode failed\n");
return;
}
if (PgGetVideoModeInfo( settings.mode, ¤t_mode_info ) < 0)
{
fprintf(stderr,"error: PgGetVideoModeInfo failed\n");
return;
}
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*/
//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, ¤t_mode_info) < 0)
{
fprintf(stderr,"set_best_resolution: PgGetVideoModeInfo failed\n");
}
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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");
}
}
}
}
}
}
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static void get_real_resolution(_THIS, int* w, int* h)
{
if ( use_vidmode ) {
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//PgDisplaySettings_t settings;
PgVideoModeInfo_t current_mode_info;
PgHWCaps_t my_hwcaps;
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// int unused;
// if (PgGetVideoMode( &settings ) >= 0) {
// *w = settings.xres;
// *h = settings.yres;
// return;
// }
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if (PgGetGraphicsHWCaps(&my_hwcaps) >= 0)
{
if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, ¤t_mode_info) < 0)
{
fprintf(stderr,"get_real_resolution: PgGetVideoModeInfo failed\n");
}
*w = current_mode_info.width;
*h = current_mode_info.height;
}
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}
// *w = DisplayWidth(SDL_Display, SDL_Screen);
// *h = DisplayHeight(SDL_Display, SDL_Screen);
}
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int ph_ResizeFullScreen(_THIS)
{
if ( currently_fullscreen ) {
set_best_resolution(this, current_w, current_h);
}
return(1);
}
int get_mode(int width, int height, int bpp)
/* return the mode associated with width, height and bpp */
/* if there is no mode then zero is returned */
{
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)
ph_LeaveFullScreen(this);
else
ph_EnterFullScreen(this);
return 0;
}
int ph_EnterFullScreen(_THIS)
{
if ( ! currently_fullscreen )
{
if (old_video_mode==-1)
{
PgGetGraphicsHWCaps(&graphics_card_caps);
old_video_mode=graphics_card_caps.current_video_mode;
old_refresh_rate=graphics_card_caps.current_rrate;
}
if(OCImage.direct_context == NULL)
OCImage.direct_context=(PdDirectContext_t*)PdCreateDirectContext();
if( !OCImage.direct_context )
fprintf(stderr, "error: Can't create direct context\n" );
/* Remove the cursor if in full screen mode */
/*
region_info.cursor_type = Ph_CURSOR_NONE;
region_info.rid=PtWidgetRid(window);
PhRegionChange(Ph_REGION_CURSOR,0,®ion_info,NULL,NULL);
*/
PdDirectStart( OCImage.direct_context );
currently_fullscreen = 1;
}
return 1;
}
int ph_LeaveFullScreen(_THIS )
{
PgDisplaySettings_t mymode_settings;
if ( currently_fullscreen )
{
PdDirectStop(OCImage.direct_context);
PdReleaseDirectContext(OCImage.direct_context);
//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)
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{
fprintf(stderr,"error: PgSetVideoMode failed\n");
}
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}
old_video_mode=-1;
old_refresh_rate=-1;
// Restore cursor
}
return 1;
}