src/video/cybergfx/SDL_cgxmodes.c
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FUNCTIONS
This source file includes following functions.
- set_best_resolution
- get_real_resolution
- add_visual
- CGX_GetVideoModes
- CGX_SupportedVisual
- CGX_ListModes
- CGX_FreeVideoModes
- CGX_ResizeFullScreen
- _QueueEnterFullScreen
- CGX_EnterFullScreen
- CGX_LeaveFullScreen
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 slouken@devolution.com
21 */
22
23 #ifdef SAVE_RCSID
24 static char rcsid =
25 "@(#) $Id: SDL_cgxmodes.c,v 1.1.2.2 2001/02/10 07:20:06 hercules Exp $";
26 #endif
27
28 /* Utilities for getting and setting the X display mode */
29
30 /*
31 #include <stdlib.h>
32 #include <string.h>
33 */
34
35 #include "SDL_timer.h"
36 #include "SDL_error.h"
37 #include "SDL_events.h"
38 #include "SDL_events_c.h"
39 #include "SDL_cgxvideo.h"
40 #include "SDL_cgxwm_c.h"
41 #include "SDL_cgxmodes_c.h"
42
43 #define CGX_DEBUG
44
45 static void set_best_resolution(_THIS, int width, int height)
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46 {
47 Uint32 idok;
48 int depth=8;
49
50 if(SDL_Display)
51 depth=GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH);
52
53 idok=BestCModeIDTags(CYBRBIDTG_NominalWidth,width,
54 CYBRBIDTG_NominalHeight,height,
55 CYBRBIDTG_Depth,depth,
56 TAG_DONE);
57
58 if(idok!=INVALID_ID)
59 {
60 if(SDL_Display)
61 {
62 if(currently_fullscreen)
63 CloseScreen(SDL_Display);
64 else
65 UnlockPubScreen(NULL,SDL_Display);
66 }
67 SDL_Display=GFX_Display=OpenScreenTags(NULL,SA_Width,width,SA_Height,height,
68 SA_Depth,depth,SA_DisplayID,idok,
69 TAG_DONE);
70 }
71 }
72
73 static void get_real_resolution(_THIS, int* w, int* h)
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74 {
75 *w = SDL_Display->Width;
76 *h = SDL_Display->Height;
77 }
78
79 static void add_visual(_THIS, int depth, int class)
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80 {
81 Uint32 tID;
82
83 tID=BestCModeIDTags(CYBRBIDTG_Depth,depth,
84 CYBRBIDTG_NominalWidth,640,
85 CYBRBIDTG_NominalHeight,480,
86 TAG_DONE);
87
88 if(tID!=INVALID_ID)
89 {
90 int n = this->hidden->nvisuals;
91
92 this->hidden->visuals[n].depth = depth;
93 this->hidden->visuals[n].visual = tID;
94 this->hidden->visuals[n].bpp = GetCyberIDAttr(CYBRIDATTR_BPPIX,tID);
95 this->hidden->nvisuals++;
96 }
97 }
98
99 #define TrueColor 1
100 #define PseudoColor 2
101
102 int CGX_GetVideoModes(_THIS)
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103 {
104 int i;
105 ULONG nextid;
106 int nmodes=0;
107
108 SDL_modelist=NULL;
109
110 nextid=NextDisplayInfo(INVALID_ID);
111
112 while(nextid!=INVALID_ID)
113 {
114 if(IsCyberModeID(nextid))
115 {
116 DisplayInfoHandle h;
117
118 if(h=FindDisplayInfo(nextid))
119 {
120 struct DimensionInfo info;
121
122 if(GetDisplayInfoData(h,(char *)&info,sizeof(struct DimensionInfo),DTAG_DIMS,NULL))
123 {
124 int ok=0;
125
126 for(i=0;i<nmodes;i++)
127 {
128 if( SDL_modelist[i]->w == (info.Nominal.MaxX+1) &&
129 SDL_modelist[i]->h == (info.Nominal.MaxY+1) )
130 ok=1;
131 }
132
133 if(!ok)
134 {
135 nmodes++;
136
137 SDL_modelist = (SDL_Rect **)realloc(SDL_modelist,(nmodes+1)*sizeof(SDL_Rect *));
138 SDL_modelist[nmodes]=NULL;
139
140 if ( SDL_modelist )
141 {
142 SDL_modelist[nmodes-1] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
143
144 if ( SDL_modelist[nmodes-1] == NULL )
145 break;
146
147 SDL_modelist[nmodes-1]->x = 0;
148 SDL_modelist[nmodes-1]->y = 0;
149 SDL_modelist[nmodes-1]->w = info.Nominal.MaxX+1;
150 SDL_modelist[nmodes-1]->h = info.Nominal.MaxY+1;
151 }
152 }
153 }
154 }
155 }
156 nextid=NextDisplayInfo(nextid);
157 }
158
159
160 this->hidden->nvisuals = 0;
161 /* Search for the visuals in deepest-first order, so that the first
162 will be the richest one */
163 add_visual(this, 32, TrueColor);
164 add_visual(this, 24, TrueColor);
165 add_visual(this, 16, TrueColor);
166 add_visual(this, 15, TrueColor);
167 add_visual(this, 8, PseudoColor);
168
169 if(this->hidden->nvisuals == 0) {
170 SDL_SetError("Found no sufficiently capable CGX visuals");
171 return -1;
172 }
173
174 if ( SDL_modelist == NULL ) {
175 SDL_modelist = (SDL_Rect **)malloc((1+1)*sizeof(SDL_Rect *));
176 i = 0;
177 if ( SDL_modelist ) {
178 SDL_modelist[i] = (SDL_Rect *)malloc(sizeof(SDL_Rect));
179 if ( SDL_modelist[i] ) {
180 SDL_modelist[i]->x = 0;
181 SDL_modelist[i]->y = 0;
182 SDL_modelist[i]->w = SDL_Display->Width;
183 SDL_modelist[i]->h = SDL_Display->Height;
184 ++i;
185 }
186 SDL_modelist[i] = NULL;
187 }
188 }
189
190 D( if ( SDL_modelist ) {
191 bug("CGX video mode list: (%ld)\n",nmodes);
192 for ( i=0; SDL_modelist[i]; ++i ) {
193 bug( "\t%ld x %ld\n",
194 SDL_modelist[i]->w, SDL_modelist[i]->h);
195 }
196 }
197 );
198
199 D( { bug("CGX visuals list: (%ld)\n",this->hidden->nvisuals);
200
201 for(i=0;i<this->hidden->nvisuals;i++)
202 bug("\t%lx - depth: %ld bpp: %ld\n",this->hidden->visuals[i].visual,this->hidden->visuals[i].depth,this->hidden->visuals[i].bpp);
203 }
204 );
205 return 0;
206 }
207
208 int CGX_SupportedVisual(_THIS, SDL_PixelFormat *format)
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209 {
210 int i;
211 for(i = 0; i < this->hidden->nvisuals; i++)
212 {
213 if(this->hidden->visuals[i].depth == format->BitsPerPixel) // Era bpp
214 return 1;
215 }
216 return 0;
217 }
218
219 SDL_Rect **CGX_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
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220 {
221 if ( CGX_SupportedVisual(this, format) ) {
222 if ( flags & SDL_FULLSCREEN ) {
223 return(SDL_modelist);
224 } else {
225 return((SDL_Rect **)-1);
226 }
227 } else {
228 return((SDL_Rect **)0);
229 }
230 }
231
232 void CGX_FreeVideoModes(_THIS)
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233 {
234 int i;
235
236 if ( SDL_modelist ) {
237 for ( i=0; SDL_modelist[i]; ++i ) {
238 free(SDL_modelist[i]);
239 }
240 free(SDL_modelist);
241 SDL_modelist = NULL;
242 }
243 }
244
245 int CGX_ResizeFullScreen(_THIS)
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246 {
247 int x, y;
248 int real_w, real_h;
249
250 if ( currently_fullscreen ) {
251 /* Per ora non faccio nulla qui */
252 }
253 return(1);
254 }
255
256 void _QueueEnterFullScreen(_THIS)
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257 {
258 }
259
260 int CGX_EnterFullScreen(_THIS)
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261 {
262 int okay;
263
264 okay = 1;
265 if ( ! currently_fullscreen )
266 {
267 int real_w, real_h;
268
269 /* Map the fullscreen window to blank the screen */
270 get_real_resolution(this, &real_w, &real_h);
271
272 CGX_DestroyWindow(this,this->screen);
273 set_best_resolution(this, real_w,real_h);
274
275 /* Grab the mouse on the fullscreen window
276 The event handling will know when we become active, and then
277 enter fullscreen mode if we can't grab the mouse this time.
278 */
279 #if 0
280 if ( (XGrabPointer(SDL_Display, FSwindow, True, 0,
281 GrabModeAsync, GrabModeAsync,
282 FSwindow, None, CurrentTime) != GrabSuccess) ||
283 (XGrabKeyboard(SDL_Display, WMwindow, True,
284 GrabModeAsync, GrabModeAsync, CurrentTime) != 0) ) {
285 XUnmapWindow(SDL_Display, FSwindow);
286 X11_WaitUnmapped(this, FSwindow);
287 X11_QueueEnterFullScreen(this);
288 return(0);
289 }
290 #endif
291
292 currently_fullscreen = 1;
293
294 CGX_CreateWindow(this,this->screen,real_w,real_h,GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH),this->screen->flags);
295
296 /* Set the new resolution */
297 okay = CGX_ResizeFullScreen(this);
298 if ( ! okay ) {
299 CGX_LeaveFullScreen(this);
300 }
301 /* Set the colormap */
302 /*
303 if ( SDL_XColorMap ) {
304 XInstallColormap(SDL_Display, SDL_XColorMap);
305 }
306 */
307 }
308 // CGX_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);
309 return(okay);
310 }
311
312 int CGX_LeaveFullScreen(_THIS)
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313 {
314 if ( currently_fullscreen ) {
315 int width,height;
316 if ( SDL_Window ) {
317 CloseWindow(SDL_Window);
318 SDL_Window=NULL;
319 }
320 CloseScreen(SDL_Display);
321
322 GFX_Display=SDL_Display=LockPubScreen(NULL);
323
324 currently_fullscreen = 0;
325
326 CGX_CreateWindow(this,this->screen,this->screen->w,this->screen->h,GetCyberMapAttr(SDL_Display->RastPort.BitMap,CYBRMATTR_DEPTH),this->screen->flags);
327 CGX_ResizeImage(this,this->screen,0L);
328 }
329
330 return(0);
331 }