SDL_cgxmodes.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
/* Utilities for getting and setting the X display mode */
#include "SDL_timer.h"
#include "SDL_events.h"
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#include "../../events/SDL_events_c.h"
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#include "SDL_cgxvideo.h"
#include "SDL_cgxwm_c.h"
#include "SDL_cgxmodes_c.h"
#define CGX_DEBUG
static void set_best_resolution(_THIS, int width, int height)
{
Uint32 idok;
int depth=8;
if(SDL_Display)
depth=GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH);
idok=BestCModeIDTags(CYBRBIDTG_NominalWidth,width,
CYBRBIDTG_NominalHeight,height,
CYBRBIDTG_Depth,depth,
TAG_DONE);
if(idok!=INVALID_ID)
{
if(SDL_Display)
{
if(currently_fullscreen)
CloseScreen(SDL_Display);
else
UnlockPubScreen(NULL,SDL_Display);
}
SDL_Display=GFX_Display=OpenScreenTags(NULL,SA_Width,width,SA_Height,height,
SA_Depth,depth,SA_DisplayID,idok,
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SA_ShowTitle,FALSE,
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TAG_DONE);
}
}
static void get_real_resolution(_THIS, int* w, int* h)
{
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*w = /*SDL_Display->Width*/ SDL_Window->Width-SDL_Window->BorderLeft-SDL_Window->BorderRight;
*h = /*SDL_Display->Height*/ SDL_Window->Height-SDL_Window->BorderBottom-SDL_Window->BorderTop;
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}
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static void move_cursor_to(_THIS, int x, int y)
{
/* XWarpPointer(SDL_Display, None, SDL_Root, 0, 0, 0, 0, x, y); */
/* DA FARE! */
}
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static void add_visual(_THIS, int depth, int class)
{
Uint32 tID;
tID=BestCModeIDTags(CYBRBIDTG_Depth,depth,
CYBRBIDTG_NominalWidth,640,
CYBRBIDTG_NominalHeight,480,
TAG_DONE);
if(tID!=INVALID_ID)
{
int n = this->hidden->nvisuals;
this->hidden->visuals[n].depth = depth;
this->hidden->visuals[n].visual = tID;
this->hidden->visuals[n].bpp = GetCyberIDAttr(CYBRIDATTR_BPPIX,tID);
this->hidden->nvisuals++;
}
}
#define TrueColor 1
#define PseudoColor 2
int CGX_GetVideoModes(_THIS)
{
int i;
ULONG nextid;
int nmodes=0;
SDL_modelist=NULL;
nextid=NextDisplayInfo(INVALID_ID);
while(nextid!=INVALID_ID)
{
if(IsCyberModeID(nextid))
{
DisplayInfoHandle h;
if(h=FindDisplayInfo(nextid))
{
struct DimensionInfo info;
if(GetDisplayInfoData(h,(char *)&info,sizeof(struct DimensionInfo),DTAG_DIMS,NULL))
{
int ok=0;
for(i=0;i<nmodes;i++)
{
if( SDL_modelist[i]->w == (info.Nominal.MaxX+1) &&
SDL_modelist[i]->h == (info.Nominal.MaxY+1) )
ok=1;
}
if(!ok)
{
nmodes++;
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SDL_modelist = (SDL_Rect **)SDL_realloc(SDL_modelist,(nmodes+1)*sizeof(SDL_Rect *));
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SDL_modelist[nmodes]=NULL;
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if ( SDL_modelist )
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{
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SDL_modelist[nmodes-1] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));
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if ( SDL_modelist[nmodes-1] == NULL )
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break;
SDL_modelist[nmodes-1]->x = 0;
SDL_modelist[nmodes-1]->y = 0;
SDL_modelist[nmodes-1]->w = info.Nominal.MaxX+1;
SDL_modelist[nmodes-1]->h = info.Nominal.MaxY+1;
}
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}
}
}
nextid=NextDisplayInfo(nextid);
}
this->hidden->nvisuals = 0;
/* Search for the visuals in deepest-first order, so that the first
will be the richest one */
add_visual(this, 32, TrueColor);
add_visual(this, 24, TrueColor);
add_visual(this, 16, TrueColor);
add_visual(this, 15, TrueColor);
add_visual(this, 8, PseudoColor);
if(this->hidden->nvisuals == 0) {
SDL_SetError("Found no sufficiently capable CGX visuals");
return -1;
}
if ( SDL_modelist == NULL ) {
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SDL_modelist = (SDL_Rect **)SDL_malloc((1+1)*sizeof(SDL_Rect *));
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i = 0;
if ( SDL_modelist ) {
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SDL_modelist[i] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));
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if ( SDL_modelist[i] ) {
SDL_modelist[i]->x = 0;
SDL_modelist[i]->y = 0;
SDL_modelist[i]->w = SDL_Display->Width;
SDL_modelist[i]->h = SDL_Display->Height;
++i;
}
SDL_modelist[i] = NULL;
}
}
D( if ( SDL_modelist ) {
bug("CGX video mode list: (%ld)\n",nmodes);
for ( i=0; SDL_modelist[i]; ++i ) {
bug( "\t%ld x %ld\n",
SDL_modelist[i]->w, SDL_modelist[i]->h);
}
}
);
D( { bug("CGX visuals list: (%ld)\n",this->hidden->nvisuals);
for(i=0;i<this->hidden->nvisuals;i++)
bug("\t%lx - depth: %ld bpp: %ld\n",this->hidden->visuals[i].visual,this->hidden->visuals[i].depth,this->hidden->visuals[i].bpp);
}
);
return 0;
}
int CGX_SupportedVisual(_THIS, SDL_PixelFormat *format)
{
int i;
for(i = 0; i < this->hidden->nvisuals; i++)
{
if(this->hidden->visuals[i].depth == format->BitsPerPixel) // Era bpp
return 1;
}
return 0;
}
SDL_Rect **CGX_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
if ( CGX_SupportedVisual(this, format) ) {
if ( flags & SDL_FULLSCREEN ) {
return(SDL_modelist);
} else {
return((SDL_Rect **)-1);
}
} else {
return((SDL_Rect **)0);
}
}
void CGX_FreeVideoModes(_THIS)
{
int i;
if ( SDL_modelist ) {
for ( i=0; SDL_modelist[i]; ++i ) {
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SDL_free(SDL_modelist[i]);
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}
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SDL_free(SDL_modelist);
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SDL_modelist = NULL;
}
}
int CGX_ResizeFullScreen(_THIS)
{
int x, y;
int real_w, real_h;
if ( currently_fullscreen ) {
/* Per ora non faccio nulla qui */
}
return(1);
}
void _QueueEnterFullScreen(_THIS)
{
}
int CGX_EnterFullScreen(_THIS)
{
int okay;
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Uint32 saved_flags;
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okay = 1;
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saved_flags = this->screen->flags;
if ( ! currently_fullscreen )
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{
int real_w, real_h;
/* Map the fullscreen window to blank the screen */
get_real_resolution(this, &real_w, &real_h);
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CGX_DestroyWindow(this,this->screen);
set_best_resolution(this, real_w,real_h);
currently_fullscreen = 1;
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this->screen->flags = saved_flags;
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CGX_CreateWindow(this,this->screen,real_w,real_h,GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH),this->screen->flags);
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/* Set the new resolution */
okay = CGX_ResizeFullScreen(this);
if ( ! okay ) {
CGX_LeaveFullScreen(this);
}
/* Set the colormap */
/*
if ( SDL_XColorMap ) {
XInstallColormap(SDL_Display, SDL_XColorMap);
}
*/
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// CGX_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);
return(okay);
}
int CGX_LeaveFullScreen(_THIS)
{
if ( currently_fullscreen ) {
int width,height;
if ( SDL_Window ) {
CloseWindow(SDL_Window);
SDL_Window=NULL;
}
CloseScreen(SDL_Display);
GFX_Display=SDL_Display=LockPubScreen(NULL);
currently_fullscreen = 0;
CGX_CreateWindow(this,this->screen,this->screen->w,this->screen->h,GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH),this->screen->flags);
CGX_ResizeImage(this,this->screen,0L);
}
return(0);
}