Mercurial > sdl-ios-xcode
annotate src/video/photon/SDL_ph_modes.c @ 512:fd7d603845dd
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author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 06 Oct 2002 18:38:12 +0000 |
parents | 3333b6e68289 |
children | 8e3ce997621c |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
0 | 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 | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 #include "SDL_ph_modes_c.h" | |
29 | |
30 static unsigned long key1, key2; | |
31 static PgVideoModeInfo_t mode_info; | |
32 static PgVideoModes_t mode_list; | |
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33 |
0 | 34 /* The current list of available video modes */ |
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35 SDL_Rect SDL_modelist[PH_MAX_VIDEOMODES]; |
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36 SDL_Rect* SDL_modearray[PH_MAX_VIDEOMODES]; |
0 | 37 |
38 static int compare_modes_by_res(const void* mode1, const void* mode2) | |
39 { | |
40 | |
41 if (PgGetVideoModeInfo(*(unsigned short*)mode1, &mode_info) < 0) | |
42 { | |
43 fprintf(stderr,"error: In compare_modes_by_res PgGetVideoModeInfo failed on mode: 0x%x\n", | |
44 *(unsigned short*)mode1); | |
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45 return 0; |
0 | 46 } |
47 key1 = mode_info.width * mode_info.height; | |
48 | |
49 if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode_info) < 0) | |
50 { | |
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51 fprintf(stderr,"error: In compare_modes_by_res PgGetVideoModeInfo failed on mode: 0x%x\n", |
0 | 52 *(unsigned short*)mode2); |
53 return 0; | |
54 } | |
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55 key2 = mode_info.width * mode_info.height; |
0 | 56 |
57 if (key1 > key2) | |
58 return 1; | |
59 else if (key1 == key2) | |
60 return 0; | |
61 else | |
62 return -1; | |
63 } | |
64 | |
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65 SDL_Rect **ph_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
0 | 66 { |
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67 int i = 0; |
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68 int j = 0; |
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69 SDL_Rect Amodelist[PH_MAX_VIDEOMODES]; |
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71 for (i=0; i<PH_MAX_VIDEOMODES; i++) |
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72 { |
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73 SDL_modearray[i]=&SDL_modelist[i]; |
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74 } |
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76 if (PgGetVideoModeList( &mode_list ) < 0) |
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77 { |
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78 fprintf(stderr,"error: PgGetVideoModeList failed\n"); |
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79 return NULL; |
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80 } |
0 | 81 |
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82 mode_info.bits_per_pixel = 0; |
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84 for (i=0; i < mode_list.num_modes; i++) |
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85 { |
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86 if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
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87 { |
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88 fprintf(stderr,"error: PgGetVideoModeInfo failed on mode: 0x%x\n", mode_list.modes[i]); |
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89 return NULL; |
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90 } |
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91 if(mode_info.bits_per_pixel == format->BitsPerPixel) |
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92 { |
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93 Amodelist[j].w = mode_info.width; |
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94 Amodelist[j].h = mode_info.height; |
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95 Amodelist[j].x = 0; |
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96 Amodelist[j].y = 0; |
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97 j++; |
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98 } |
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99 } |
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100 |
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101 /* reorder biggest for smallest, assume width dominates */ |
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102 |
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103 for(i=0; i<j; i++) |
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104 { |
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105 SDL_modelist[i].w = Amodelist[j - i -1].w; |
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106 SDL_modelist[i].h = Amodelist[j - i -1].h; |
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107 SDL_modelist[i].x = Amodelist[j - i -1].x; |
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108 SDL_modelist[i].y = Amodelist[j - i -1].y; |
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109 } |
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110 SDL_modearray[j]=NULL; |
0 | 111 |
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112 return SDL_modearray; |
0 | 113 } |
114 | |
115 void ph_FreeVideoModes(_THIS) | |
116 { | |
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117 return; |
0 | 118 } |
119 | |
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120 #if 0 |
0 | 121 static void set_best_resolution(_THIS, int width, int height) |
122 { | |
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123 /* warning ! dead variable use_vidmode ! */ |
0 | 124 if ( use_vidmode ) { |
125 PgDisplaySettings_t settings; | |
126 PgVideoModeInfo_t current_mode_info; | |
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127 PgHWCaps_t my_hwcaps; |
0 | 128 unsigned short current_bpp; |
129 int i; | |
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130 /* |
0 | 131 if (PgGetVideoMode( &settings ) < 0) |
132 { | |
133 fprintf(stderr,"error: PgGetVideoMode failed\n"); | |
134 return; | |
135 } | |
136 if (PgGetVideoModeInfo( settings.mode, ¤t_mode_info ) < 0) | |
137 { | |
138 fprintf(stderr,"error: PgGetVideoModeInfo failed\n"); | |
139 return; | |
140 } | |
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141 */ |
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142 //lu_zero |
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143 if (PgGetGraphicsHWCaps(&my_hwcaps) < 0) |
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144 { |
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145 fprintf(stderr,"set_best_resolution: GetGraphicsHWCaps failed!! \n"); |
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146 //that HAVE to work |
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147 } |
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148 if (PgGetVideoModeInfo(my_hwcaps.current_video_mode, ¤t_mode_info) < 0) |
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149 { |
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150 fprintf(stderr,"set_best_resolution: PgGetVideoModeInfo failed\n"); |
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151 } |
0 | 152 current_bpp = current_mode_info.bits_per_pixel; |
153 | |
154 if (PgGetVideoModeList(&mode_list) >= 0) | |
155 { | |
156 qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res); | |
157 #ifdef PH_DEBUG | |
158 printf("Available modes:\n"); | |
159 for ( i = 0; i < mode_list.num_modes; ++i ) | |
160 { | |
161 PgGetVideoModeInfo(mode_list.modes[i], &mode_info); | |
162 printf("Mode %d: %dx%d\n", i, mode_info.width, mode_info.height); | |
163 } | |
164 #endif | |
165 for ( i = mode_list.num_modes-1; i >= 0 ; --i ) | |
166 { | |
167 if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) | |
168 { | |
169 fprintf(stderr,"error: PgGetVideoModeInfo failed\n"); | |
170 } | |
171 if ( (mode_info.width >= width) && | |
172 (mode_info.height >= height) && | |
173 (mode_info.bits_per_pixel == current_bpp) ) | |
174 break; | |
175 } | |
176 if (i >= 0) | |
177 { | |
178 if ( (mode_info.width != current_mode_info.width) || | |
179 (mode_info.height != current_mode_info.height) ) | |
180 { | |
181 settings.mode = mode_list.modes[i]; | |
182 if(PgSetVideoMode( &settings ) < 0) | |
183 { | |
184 fprintf(stderr,"error: PgSetVideoMode failed\n"); | |
185 } | |
186 } | |
187 } | |
188 } | |
189 } | |
190 } | |
191 | |
192 int ph_ResizeFullScreen(_THIS) | |
193 { | |
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194 if (currently_fullscreen) |
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195 { |
0 | 196 set_best_resolution(this, current_w, current_h); |
197 } | |
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198 |
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199 return (1); |
0 | 200 } |
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201 #endif /* 0 */ |
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203 /* return the mode associated with width, height and bpp */ |
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204 /* if there is no mode then zero is returned */ |
0 | 205 int get_mode(int width, int height, int bpp) |
206 { | |
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207 int i; |
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209 if(width<640) |
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210 { |
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211 width=640; |
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212 } |
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213 if(height<480) |
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214 { |
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215 height=480; |
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216 } |
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218 if (PgGetVideoModeList(&mode_list) < 0) |
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219 { |
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220 fprintf(stderr,"error: PgGetVideoModeList failed\n"); |
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221 return -1; |
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222 } |
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223 |
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224 /* search list for exact match */ |
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225 for (i=0;i<mode_list.num_modes;i++) |
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226 { |
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227 if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) |
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228 { |
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229 fprintf(stderr,"error: PgGetVideoModeInfo failed\n"); |
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230 return 0; |
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231 } |
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232 |
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233 if ((mode_info.width == width) && |
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234 (mode_info.height == height) && |
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235 (mode_info.bits_per_pixel == bpp)) |
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236 { |
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237 return mode_list.modes[i]; |
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238 } |
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239 } |
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240 |
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241 return (i == mode_list.num_modes) ? 0 : mode_list.modes[i]; |
0 | 242 } |
243 | |
244 int get_mode_any_format(int width, int height, int bpp) | |
245 /* return the mode associated with width, height and bpp */ | |
246 /* if requested bpp is not found the mode with closest bpp is returned */ | |
247 { | |
248 int i, closest, delta, min_delta; | |
249 | |
250 if (PgGetVideoModeList( &mode_list ) < 0) | |
251 { | |
252 fprintf(stderr,"error: PgGetVideoModeList failed\n"); | |
253 return -1; | |
254 } | |
255 | |
256 qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res); | |
257 for(i=0;i<mode_list.num_modes;i++) | |
258 { | |
259 if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) | |
260 { | |
261 fprintf(stderr,"error: PgGetVideoModeInfo failed\n"); | |
262 return 0; | |
263 } | |
264 if ((mode_info.width == width) && | |
265 (mode_info.height == height)) | |
266 break; | |
267 } | |
268 if (i<mode_list.num_modes) | |
269 { | |
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270 /* get closest bpp */ |
0 | 271 closest = i++; |
272 if (mode_info.bits_per_pixel == bpp) | |
273 return mode_list.modes[ closest ]; | |
274 | |
275 min_delta = abs(mode_info.bits_per_pixel - bpp); | |
276 while(1) | |
277 { | |
278 if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) | |
279 { | |
280 fprintf(stderr,"error: PgGetVideoModeInfo failed\n"); | |
281 return 0; | |
282 } | |
283 | |
284 if ((mode_info.width != width) || | |
285 (mode_info.height != height)) | |
286 break; | |
287 else if (mode_info.bits_per_pixel == bpp) | |
288 { | |
289 closest = i; | |
290 break; | |
291 } | |
292 else | |
293 { | |
294 delta = abs(mode_info.bits_per_pixel - bpp); | |
295 if (delta < min_delta) | |
296 { | |
297 closest = i; | |
298 min_delta = delta; | |
299 } | |
300 i++; | |
301 } | |
302 } | |
303 return mode_list.modes[ closest ]; | |
304 } | |
305 else | |
309
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306 return 0; |
0 | 307 } |
308 | |
309 void ph_WaitMapped(_THIS); | |
310 void ph_WaitUnmapped(_THIS); | |
311 void ph_QueueEnterFullScreen(_THIS); | |
312 | |
313 int ph_ToggleFullScreen(_THIS, int on) | |
314 { | |
309
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315 if (currently_fullscreen) |
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316 { |
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317 return ph_LeaveFullScreen(this); |
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318 } |
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319 else |
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320 { |
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321 return ph_EnterFullScreen(this); |
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322 } |
0 | 323 |
309
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324 return 0; |
0 | 325 } |
326 | |
327 int ph_EnterFullScreen(_THIS) | |
328 { | |
309
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329 if (!currently_fullscreen) |
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330 { |
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331 if (this->screen) |
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332 { |
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333 if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL) |
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334 { |
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335 #ifdef HAVE_OPENGL |
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336 #endif /* HAVE_OPENGL */ |
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337 return 0; |
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338 } |
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339 } |
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340 |
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341 if (OCImage.direct_context == NULL) |
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342 { |
315
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343 OCImage.direct_context=(PdDirectContext_t*)PdCreateDirectContext(); |
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344 } |
0 | 345 |
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346 if (!OCImage.direct_context) |
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347 { |
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348 fprintf(stderr, "ph_EnterFullScreen: Can't create direct context\n" ); |
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349 } |
0 | 350 |
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351 PdDirectStart(OCImage.direct_context); |
0 | 352 |
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353 currently_fullscreen = 1; |
309
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354 } |
0 | 355 |
309
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356 return 1; |
0 | 357 } |
358 | |
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359 int ph_LeaveFullScreen(_THIS) |
0 | 360 { |
309
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361 PgDisplaySettings_t mymode_settings; |
0 | 362 |
309
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363 if (currently_fullscreen) |
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364 { |
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365 if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL) |
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366 { |
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367 #ifdef HAVE_OPENGL |
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368 #endif /* HAVE_OPENGL */ |
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369 return 0; |
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370 } |
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371 else |
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372 { |
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373 PdDirectStop(OCImage.direct_context); |
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374 PdReleaseDirectContext(OCImage.direct_context); |
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375 |
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376 currently_fullscreen=0; |
0 | 377 |
309
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378 /* Restore old video mode */ |
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379 if (old_video_mode != -1) |
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380 { |
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381 mymode_settings.mode= (unsigned short) old_video_mode; |
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382 mymode_settings.refresh= (unsigned short) old_refresh_rate; |
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383 mymode_settings.flags= 0; |
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384 |
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385 if (PgSetVideoMode(&mymode_settings) < 0) |
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386 { |
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387 fprintf(stderr,"error: PgSetVideoMode failed\n"); |
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388 } |
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389 } |
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390 |
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391 old_video_mode=-1; |
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392 old_refresh_rate=-1; |
309
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393 } |
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394 |
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395 } |
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396 return 1; |
0 | 397 } |