Mercurial > sdl-ios-xcode
annotate src/video/ggi/SDL_ggivideo.c @ 4070:b8f2db95145e SDL-1.2
Patch from Christian Walther
Yes, the idea to use a cursor rectangle instead of [NSCursor set] has occurred
to me too, and it does seem to be the most elegant way. Here's my attempt at an
implementation
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 15 Jul 2007 15:58:00 +0000 |
parents | 8d9bb0cf2c2a |
children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
rev | line source |
---|---|
0 | 1 /* |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
2 SDL - Simple DirectMedia Layer |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
5 This library is free software; you can redistribute it and/or |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
7 License as published by the Free Software Foundation; either |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
10 This library is distributed in the hope that it will be useful, |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
13 Lesser General Public License for more details. |
0 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
19 Sam Lantinga |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
20 slouken@libsdl.org |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
21 */ |
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
changeset
|
22 #include "SDL_config.h" |
0 | 23 |
24 /* GGI-based SDL video driver implementation. | |
25 */ | |
26 | |
27 #include <fcntl.h> | |
28 #include <unistd.h> | |
29 #include <sys/mman.h> | |
30 | |
31 #include <ggi/ggi.h> | |
32 #include <ggi/gii.h> | |
33 | |
34 #include "SDL_video.h" | |
35 #include "SDL_mouse.h" | |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
36 #include "../SDL_sysvideo.h" |
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
37 #include "../SDL_pixels_c.h" |
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
38 #include "../../events/SDL_events_c.h" |
0 | 39 #include "SDL_ggivideo.h" |
40 #include "SDL_ggimouse_c.h" | |
41 #include "SDL_ggievents_c.h" | |
42 | |
43 | |
44 struct private_hwdata | |
45 { | |
46 ggi_visual_t vis; | |
47 }; | |
48 | |
49 ggi_visual_t VIS; | |
50 | |
51 /* Initialization/Query functions */ | |
52 static int GGI_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
53 static SDL_Rect **GGI_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
54 static SDL_Surface *GGI_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
55 static int GGI_SetColors(_THIS, int firstcolor, int ncolors, | |
56 SDL_Color *colors); | |
57 static void GGI_VideoQuit(_THIS); | |
58 | |
59 /* Hardware surface functions */ | |
60 static int GGI_AllocHWSurface(_THIS, SDL_Surface *surface); | |
61 static int GGI_LockHWSurface(_THIS, SDL_Surface *surface); | |
62 static void GGI_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
63 static void GGI_FreeHWSurface(_THIS, SDL_Surface *surface); | |
64 | |
65 /* GGI driver bootstrap functions */ | |
66 | |
67 static int GGI_Available(void) | |
68 { | |
69 ggi_visual_t *vis; | |
17
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
70 |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
71 vis = NULL; |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
72 if (ggiInit() == 0) { |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
73 vis = ggiOpen(NULL); |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
74 if (vis != NULL) { |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
75 ggiClose(vis); |
4f22a992f5e9
Fixed crash in GGI detection
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
76 } |
0 | 77 } |
78 return (vis != NULL); | |
79 } | |
80 | |
81 static void GGI_DeleteDevice(SDL_VideoDevice *device) | |
82 { | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
83 SDL_free(device->hidden); |
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
84 SDL_free(device); |
0 | 85 } |
86 | |
87 static SDL_VideoDevice *GGI_CreateDevice(int devindex) | |
88 { | |
89 SDL_VideoDevice *device; | |
90 | |
91 /* Initialize all variables that we clean on shutdown */ | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
92 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
0 | 93 if ( device ) { |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
94 SDL_memset(device, 0, (sizeof *device)); |
0 | 95 device->hidden = (struct SDL_PrivateVideoData *) |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
96 SDL_malloc((sizeof *device->hidden)); |
0 | 97 } |
98 if ( (device == NULL) || (device->hidden == NULL) ) { | |
99 SDL_OutOfMemory(); | |
100 if ( device ) { | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
101 SDL_free(device); |
0 | 102 } |
103 return(0); | |
104 } | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
105 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
0 | 106 |
107 /* Set the function pointers */ | |
108 device->VideoInit = GGI_VideoInit; | |
109 device->ListModes = GGI_ListModes; | |
110 device->SetVideoMode = GGI_SetVideoMode; | |
111 device->SetColors = GGI_SetColors; | |
112 device->UpdateRects = NULL; | |
113 device->VideoQuit = GGI_VideoQuit; | |
114 device->AllocHWSurface = GGI_AllocHWSurface; | |
115 device->CheckHWBlit = NULL; | |
116 device->FillHWRect = NULL; | |
117 device->SetHWColorKey = NULL; | |
118 device->SetHWAlpha = NULL; | |
119 device->LockHWSurface = GGI_LockHWSurface; | |
120 device->UnlockHWSurface = GGI_UnlockHWSurface; | |
121 device->FlipHWSurface = NULL; | |
122 device->FreeHWSurface = GGI_FreeHWSurface; | |
123 device->SetCaption = NULL; | |
124 device->SetIcon = NULL; | |
125 device->IconifyWindow = NULL; | |
126 device->GrabInput = NULL; | |
127 device->GetWMInfo = NULL; | |
128 device->InitOSKeymap = GGI_InitOSKeymap; | |
129 device->PumpEvents = GGI_PumpEvents; | |
130 | |
131 device->free = GGI_DeleteDevice; | |
132 | |
133 return device; | |
134 } | |
135 | |
136 VideoBootStrap GGI_bootstrap = { | |
137 "ggi", "General Graphics Interface (GGI)", | |
138 GGI_Available, GGI_CreateDevice | |
139 }; | |
140 | |
141 | |
142 static SDL_Rect video_mode; | |
143 static SDL_Rect *SDL_modelist[4] = { NULL, NULL, NULL, NULL }; | |
144 | |
145 int GGI_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
146 { | |
147 ggi_mode mode = | |
148 { | |
149 1, | |
150 { GGI_AUTO, GGI_AUTO }, | |
151 { GGI_AUTO, GGI_AUTO }, | |
152 { 0, 0 }, | |
153 GT_AUTO, | |
154 { GGI_AUTO, GGI_AUTO } | |
155 }; | |
156 struct private_hwdata *priv; | |
157 ggi_color pal[256], map[256]; | |
158 const ggi_directbuffer *db; | |
159 int err, num_bufs; | |
160 ggi_pixel white, black; | |
161 | |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
162 priv = SDL_malloc(sizeof(struct private_hwdata)); |
0 | 163 if (priv == NULL) |
164 { | |
165 SDL_SetError("Unhandled GGI mode type!\n"); | |
166 GGI_VideoQuit(NULL); | |
167 } | |
168 | |
169 if (ggiInit() != 0) | |
170 { | |
171 SDL_SetError("Unable to initialize GGI!\n"); | |
172 GGI_VideoQuit(NULL); | |
173 } | |
174 | |
175 VIS = ggiOpen(NULL); | |
176 if (VIS == NULL) | |
177 { | |
178 SDL_SetError("Unable to open default GGI visual!\n"); | |
179 ggiExit(); | |
180 GGI_VideoQuit(NULL); | |
181 } | |
182 | |
183 ggiSetFlags(VIS, GGIFLAG_ASYNC); | |
184 | |
185 /* Validate mode, autodetecting any GGI_AUTO or GT_AUTO fields */ | |
186 ggiCheckMode(VIS, &mode); | |
187 | |
188 /* At this point we should have a valid mode - try to set it */ | |
189 err = ggiSetMode(VIS, &mode); | |
190 | |
191 /* If we couldn't set _any_ modes, something is very wrong */ | |
192 if (err) | |
193 { | |
194 SDL_SetError("Can't set a mode!\n"); | |
195 ggiClose(VIS); | |
196 ggiExit(); | |
197 GGI_VideoQuit(NULL); | |
198 } | |
199 | |
1545
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
200 /* Determine the current screen size */ |
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
201 this->info.current_w = mode.virt.x; |
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
202 this->info.current_h = mode.virt.y; |
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
203 |
0 | 204 /* Set a palette for palletized modes */ |
205 if (GT_SCHEME(mode.graphtype) == GT_PALETTE) | |
206 { | |
207 ggiSetColorfulPalette(VIS); | |
208 ggiGetPalette(VIS, 0, 1 << vformat->BitsPerPixel, pal); | |
209 } | |
210 | |
211 /* Now we try to get the DirectBuffer info, which determines whether | |
212 * SDL can access hardware surfaces directly. */ | |
213 | |
214 num_bufs = ggiDBGetNumBuffers(VIS); | |
215 | |
216 if (num_bufs > 0) | |
217 { | |
218 db = ggiDBGetBuffer(VIS, 0); /* Only handle one DB for now */ | |
219 | |
220 vformat->BitsPerPixel = db->buffer.plb.pixelformat->depth; | |
221 | |
222 vformat->Rmask = db->buffer.plb.pixelformat->red_mask; | |
223 vformat->Gmask = db->buffer.plb.pixelformat->green_mask; | |
224 vformat->Bmask = db->buffer.plb.pixelformat->blue_mask; | |
225 | |
226 /* Fill in our hardware acceleration capabilities */ | |
227 | |
228 this->info.wm_available = 0; | |
229 this->info.hw_available = 1; | |
230 this->info.video_mem = db->buffer.plb.stride * mode.virt.y; | |
231 } | |
232 | |
233 video_mode.x = 0; | |
234 video_mode.y = 0; | |
235 video_mode.w = mode.virt.x; | |
236 video_mode.h = mode.virt.y; | |
237 SDL_modelist[((vformat->BitsPerPixel + 7) / 8) - 1] = &video_mode; | |
238 | |
239 /* We're done! */ | |
240 return(0); | |
241 } | |
242 | |
243 static SDL_Rect **GGI_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
244 { | |
245 return(&SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]); | |
246 } | |
247 | |
248 /* Various screen update functions available */ | |
249 static void GGI_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
250 | |
251 SDL_Surface *GGI_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags) | |
252 { | |
253 ggi_mode mode = | |
254 { | |
255 1, | |
256 { GGI_AUTO, GGI_AUTO }, | |
257 { GGI_AUTO, GGI_AUTO }, | |
258 { 0, 0 }, | |
259 GT_AUTO, | |
260 { GGI_AUTO, GGI_AUTO } | |
261 }; | |
262 const ggi_directbuffer *db; | |
263 ggi_color pal[256]; | |
264 int err; | |
265 | |
266 fprintf(stderr, "GGI_SetVideoMode()\n"); | |
267 | |
268 mode.visible.x = mode.virt.x = width; | |
269 mode.visible.y = mode.virt.y = height; | |
270 | |
271 /* Translate requested SDL bit depth into a GGI mode */ | |
272 switch (bpp) | |
273 { | |
274 case 1: mode.graphtype = GT_1BIT; break; | |
275 case 2: mode.graphtype = GT_2BIT; break; | |
276 case 4: mode.graphtype = GT_4BIT; break; | |
277 case 8: mode.graphtype = GT_8BIT; break; | |
278 case 15: mode.graphtype = GT_15BIT; break; | |
279 case 16: mode.graphtype = GT_16BIT; break; | |
280 case 24: mode.graphtype = GT_24BIT; break; | |
281 case 32: mode.graphtype = GT_32BIT; break; | |
282 default: | |
283 SDL_SetError("Unknown SDL bit depth, using GT_AUTO....\n"); | |
284 mode.graphtype = GT_AUTO; | |
285 } | |
286 | |
287 /* Validate mode, autodetecting any GGI_AUTO or GT_AUTO fields */ | |
288 ggiCheckMode(VIS, &mode); | |
289 | |
290 /* At this point we should have a valid mode - try to set it */ | |
291 err = ggiSetMode(VIS, &mode); | |
292 | |
293 /* If we couldn't set _any_ modes, something is very wrong */ | |
294 if (err) | |
295 { | |
296 SDL_SetError("Can't set a mode!\n"); | |
297 ggiClose(VIS); | |
298 ggiExit(); | |
299 GGI_VideoQuit(NULL); | |
300 } | |
301 | |
302 /* Set a palette for palletized modes */ | |
303 if (GT_SCHEME(mode.graphtype) == GT_PALETTE) | |
304 { | |
305 ggiSetColorfulPalette(VIS); | |
306 ggiGetPalette(VIS, 0, 1 << bpp, pal); | |
307 } | |
308 | |
309 db = ggiDBGetBuffer(VIS, 0); | |
310 | |
311 /* Set up the new mode framebuffer */ | |
312 current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE); | |
313 current->w = mode.virt.x; | |
314 current->h = mode.virt.y; | |
315 current->pitch = db->buffer.plb.stride; | |
316 current->pixels = db->read; | |
317 | |
318 /* Set the blit function */ | |
319 this->UpdateRects = GGI_DirectUpdate; | |
320 | |
321 /* We're done */ | |
322 return(current); | |
323 } | |
324 | |
325 static int GGI_AllocHWSurface(_THIS, SDL_Surface *surface) | |
326 { | |
327 return(-1); | |
328 } | |
329 static void GGI_FreeHWSurface(_THIS, SDL_Surface *surface) | |
330 { | |
331 return; | |
332 } | |
333 static int GGI_LockHWSurface(_THIS, SDL_Surface *surface) | |
334 { | |
335 return(0); | |
336 } | |
337 static void GGI_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
338 { | |
339 return; | |
340 } | |
341 | |
342 static void GGI_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
343 { | |
344 int i; | |
345 | |
346 /* ggiFlush(VIS); */ | |
347 | |
348 for (i = 0; i < numrects; i++) | |
349 { | |
350 ggiFlushRegion(VIS, rects[i].x, rects[i].y, rects[i].w, rects[i].h); | |
351 } | |
352 return; | |
353 } | |
354 | |
355 int GGI_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
356 { | |
357 int i; | |
358 ggi_color pal[256]; | |
359 | |
360 /* Set up the colormap */ | |
361 for (i = 0; i < ncolors; i++) | |
362 { | |
363 pal[i].r = (colors[i].r << 8) | colors[i].r; | |
364 pal[i].g = (colors[i].g << 8) | colors[i].g; | |
365 pal[i].b = (colors[i].b << 8) | colors[i].b; | |
366 } | |
367 | |
368 ggiSetPalette(VIS, firstcolor, ncolors, pal); | |
369 | |
370 return 1; | |
371 } | |
372 | |
373 void GGI_VideoQuit(_THIS) | |
374 { | |
375 } | |
376 void GGI_FinalQuit(void) | |
377 { | |
378 } |