|
0
|
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 "@(#) $Id$";
|
|
|
26 #endif
|
|
|
27
|
|
|
28 /* GGI-based SDL video driver implementation.
|
|
|
29 */
|
|
|
30
|
|
|
31 #include <stdlib.h>
|
|
|
32 #include <stdio.h>
|
|
|
33 #include <fcntl.h>
|
|
|
34 #include <unistd.h>
|
|
|
35 #include <sys/mman.h>
|
|
|
36
|
|
|
37 #include <ggi/ggi.h>
|
|
|
38 #include <ggi/gii.h>
|
|
|
39
|
|
|
40 #include "SDL.h"
|
|
|
41 #include "SDL_error.h"
|
|
|
42 #include "SDL_video.h"
|
|
|
43 #include "SDL_mouse.h"
|
|
|
44 #include "SDL_sysvideo.h"
|
|
|
45 #include "SDL_pixels_c.h"
|
|
|
46 #include "SDL_events_c.h"
|
|
|
47 #include "SDL_ggivideo.h"
|
|
|
48 #include "SDL_ggimouse_c.h"
|
|
|
49 #include "SDL_ggievents_c.h"
|
|
|
50
|
|
|
51
|
|
|
52 struct private_hwdata
|
|
|
53 {
|
|
|
54 ggi_visual_t vis;
|
|
|
55 };
|
|
|
56
|
|
|
57 ggi_visual_t VIS;
|
|
|
58
|
|
|
59 /* Initialization/Query functions */
|
|
|
60 static int GGI_VideoInit(_THIS, SDL_PixelFormat *vformat);
|
|
|
61 static SDL_Rect **GGI_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
|
|
|
62 static SDL_Surface *GGI_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
|
|
|
63 static int GGI_SetColors(_THIS, int firstcolor, int ncolors,
|
|
|
64 SDL_Color *colors);
|
|
|
65 static void GGI_VideoQuit(_THIS);
|
|
|
66
|
|
|
67 /* Hardware surface functions */
|
|
|
68 static int GGI_AllocHWSurface(_THIS, SDL_Surface *surface);
|
|
|
69 static int GGI_LockHWSurface(_THIS, SDL_Surface *surface);
|
|
|
70 static void GGI_UnlockHWSurface(_THIS, SDL_Surface *surface);
|
|
|
71 static void GGI_FreeHWSurface(_THIS, SDL_Surface *surface);
|
|
|
72
|
|
|
73 /* GGI driver bootstrap functions */
|
|
|
74
|
|
|
75 static int GGI_Available(void)
|
|
|
76 {
|
|
|
77 ggi_visual_t *vis;
|
|
|
78
|
|
|
79 vis = ggiOpen(NULL);
|
|
|
80 if (vis != NULL)
|
|
|
81 {
|
|
|
82 ggiClose(vis);
|
|
|
83 }
|
|
|
84 return (vis != NULL);
|
|
|
85 }
|
|
|
86
|
|
|
87 static void GGI_DeleteDevice(SDL_VideoDevice *device)
|
|
|
88 {
|
|
|
89 free(device->hidden);
|
|
|
90 free(device);
|
|
|
91 }
|
|
|
92
|
|
|
93 static SDL_VideoDevice *GGI_CreateDevice(int devindex)
|
|
|
94 {
|
|
|
95 SDL_VideoDevice *device;
|
|
|
96
|
|
|
97 /* Initialize all variables that we clean on shutdown */
|
|
|
98 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
|
|
|
99 if ( device ) {
|
|
|
100 memset(device, 0, (sizeof *device));
|
|
|
101 device->hidden = (struct SDL_PrivateVideoData *)
|
|
|
102 malloc((sizeof *device->hidden));
|
|
|
103 }
|
|
|
104 if ( (device == NULL) || (device->hidden == NULL) ) {
|
|
|
105 SDL_OutOfMemory();
|
|
|
106 if ( device ) {
|
|
|
107 free(device);
|
|
|
108 }
|
|
|
109 return(0);
|
|
|
110 }
|
|
|
111 memset(device->hidden, 0, (sizeof *device->hidden));
|
|
|
112
|
|
|
113 /* Set the function pointers */
|
|
|
114 device->VideoInit = GGI_VideoInit;
|
|
|
115 device->ListModes = GGI_ListModes;
|
|
|
116 device->SetVideoMode = GGI_SetVideoMode;
|
|
|
117 device->SetColors = GGI_SetColors;
|
|
|
118 device->UpdateRects = NULL;
|
|
|
119 device->VideoQuit = GGI_VideoQuit;
|
|
|
120 device->AllocHWSurface = GGI_AllocHWSurface;
|
|
|
121 device->CheckHWBlit = NULL;
|
|
|
122 device->FillHWRect = NULL;
|
|
|
123 device->SetHWColorKey = NULL;
|
|
|
124 device->SetHWAlpha = NULL;
|
|
|
125 device->LockHWSurface = GGI_LockHWSurface;
|
|
|
126 device->UnlockHWSurface = GGI_UnlockHWSurface;
|
|
|
127 device->FlipHWSurface = NULL;
|
|
|
128 device->FreeHWSurface = GGI_FreeHWSurface;
|
|
|
129 device->SetCaption = NULL;
|
|
|
130 device->SetIcon = NULL;
|
|
|
131 device->IconifyWindow = NULL;
|
|
|
132 device->GrabInput = NULL;
|
|
|
133 device->GetWMInfo = NULL;
|
|
|
134 device->InitOSKeymap = GGI_InitOSKeymap;
|
|
|
135 device->PumpEvents = GGI_PumpEvents;
|
|
|
136
|
|
|
137 device->free = GGI_DeleteDevice;
|
|
|
138
|
|
|
139 return device;
|
|
|
140 }
|
|
|
141
|
|
|
142 VideoBootStrap GGI_bootstrap = {
|
|
|
143 "ggi", "General Graphics Interface (GGI)",
|
|
|
144 GGI_Available, GGI_CreateDevice
|
|
|
145 };
|
|
|
146
|
|
|
147
|
|
|
148 static SDL_Rect video_mode;
|
|
|
149 static SDL_Rect *SDL_modelist[4] = { NULL, NULL, NULL, NULL };
|
|
|
150
|
|
|
151 int GGI_VideoInit(_THIS, SDL_PixelFormat *vformat)
|
|
|
152 {
|
|
|
153 ggi_mode mode =
|
|
|
154 {
|
|
|
155 1,
|
|
|
156 { GGI_AUTO, GGI_AUTO },
|
|
|
157 { GGI_AUTO, GGI_AUTO },
|
|
|
158 { 0, 0 },
|
|
|
159 GT_AUTO,
|
|
|
160 { GGI_AUTO, GGI_AUTO }
|
|
|
161 };
|
|
|
162 struct private_hwdata *priv;
|
|
|
163 ggi_color pal[256], map[256];
|
|
|
164 const ggi_directbuffer *db;
|
|
|
165 int err, num_bufs;
|
|
|
166 ggi_pixel white, black;
|
|
|
167
|
|
|
168 priv = malloc(sizeof(struct private_hwdata));
|
|
|
169 if (priv == NULL)
|
|
|
170 {
|
|
|
171 SDL_SetError("Unhandled GGI mode type!\n");
|
|
|
172 GGI_VideoQuit(NULL);
|
|
|
173 }
|
|
|
174
|
|
|
175 if (ggiInit() != 0)
|
|
|
176 {
|
|
|
177 SDL_SetError("Unable to initialize GGI!\n");
|
|
|
178 GGI_VideoQuit(NULL);
|
|
|
179 }
|
|
|
180
|
|
|
181 VIS = ggiOpen(NULL);
|
|
|
182 if (VIS == NULL)
|
|
|
183 {
|
|
|
184 SDL_SetError("Unable to open default GGI visual!\n");
|
|
|
185 ggiExit();
|
|
|
186 GGI_VideoQuit(NULL);
|
|
|
187 }
|
|
|
188
|
|
|
189 ggiSetFlags(VIS, GGIFLAG_ASYNC);
|
|
|
190
|
|
|
191 /* Validate mode, autodetecting any GGI_AUTO or GT_AUTO fields */
|
|
|
192 ggiCheckMode(VIS, &mode);
|
|
|
193
|
|
|
194 /* At this point we should have a valid mode - try to set it */
|
|
|
195 err = ggiSetMode(VIS, &mode);
|
|
|
196
|
|
|
197 /* If we couldn't set _any_ modes, something is very wrong */
|
|
|
198 if (err)
|
|
|
199 {
|
|
|
200 SDL_SetError("Can't set a mode!\n");
|
|
|
201 ggiClose(VIS);
|
|
|
202 ggiExit();
|
|
|
203 GGI_VideoQuit(NULL);
|
|
|
204 }
|
|
|
205
|
|
|
206 /* Set a palette for palletized modes */
|
|
|
207 if (GT_SCHEME(mode.graphtype) == GT_PALETTE)
|
|
|
208 {
|
|
|
209 ggiSetColorfulPalette(VIS);
|
|
|
210 ggiGetPalette(VIS, 0, 1 << vformat->BitsPerPixel, pal);
|
|
|
211 }
|
|
|
212
|
|
|
213 /* Now we try to get the DirectBuffer info, which determines whether
|
|
|
214 * SDL can access hardware surfaces directly. */
|
|
|
215
|
|
|
216 num_bufs = ggiDBGetNumBuffers(VIS);
|
|
|
217
|
|
|
218 if (num_bufs > 0)
|
|
|
219 {
|
|
|
220 db = ggiDBGetBuffer(VIS, 0); /* Only handle one DB for now */
|
|
|
221
|
|
|
222 vformat->BitsPerPixel = db->buffer.plb.pixelformat->depth;
|
|
|
223
|
|
|
224 vformat->Rmask = db->buffer.plb.pixelformat->red_mask;
|
|
|
225 vformat->Gmask = db->buffer.plb.pixelformat->green_mask;
|
|
|
226 vformat->Bmask = db->buffer.plb.pixelformat->blue_mask;
|
|
|
227
|
|
|
228 /* Fill in our hardware acceleration capabilities */
|
|
|
229
|
|
|
230 this->info.wm_available = 0;
|
|
|
231 this->info.hw_available = 1;
|
|
|
232 this->info.video_mem = db->buffer.plb.stride * mode.virt.y;
|
|
|
233 }
|
|
|
234
|
|
|
235 video_mode.x = 0;
|
|
|
236 video_mode.y = 0;
|
|
|
237 video_mode.w = mode.virt.x;
|
|
|
238 video_mode.h = mode.virt.y;
|
|
|
239 SDL_modelist[((vformat->BitsPerPixel + 7) / 8) - 1] = &video_mode;
|
|
|
240
|
|
|
241 /* We're done! */
|
|
|
242 return(0);
|
|
|
243 }
|
|
|
244
|
|
|
245 static SDL_Rect **GGI_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
|
|
|
246 {
|
|
|
247 return(&SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1]);
|
|
|
248 }
|
|
|
249
|
|
|
250 /* Various screen update functions available */
|
|
|
251 static void GGI_DirectUpdate(_THIS, int numrects, SDL_Rect *rects);
|
|
|
252
|
|
|
253 SDL_Surface *GGI_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags)
|
|
|
254 {
|
|
|
255 ggi_mode mode =
|
|
|
256 {
|
|
|
257 1,
|
|
|
258 { GGI_AUTO, GGI_AUTO },
|
|
|
259 { GGI_AUTO, GGI_AUTO },
|
|
|
260 { 0, 0 },
|
|
|
261 GT_AUTO,
|
|
|
262 { GGI_AUTO, GGI_AUTO }
|
|
|
263 };
|
|
|
264 const ggi_directbuffer *db;
|
|
|
265 ggi_color pal[256];
|
|
|
266 int err;
|
|
|
267
|
|
|
268 fprintf(stderr, "GGI_SetVideoMode()\n");
|
|
|
269
|
|
|
270 mode.visible.x = mode.virt.x = width;
|
|
|
271 mode.visible.y = mode.virt.y = height;
|
|
|
272
|
|
|
273 /* Translate requested SDL bit depth into a GGI mode */
|
|
|
274 switch (bpp)
|
|
|
275 {
|
|
|
276 case 1: mode.graphtype = GT_1BIT; break;
|
|
|
277 case 2: mode.graphtype = GT_2BIT; break;
|
|
|
278 case 4: mode.graphtype = GT_4BIT; break;
|
|
|
279 case 8: mode.graphtype = GT_8BIT; break;
|
|
|
280 case 15: mode.graphtype = GT_15BIT; break;
|
|
|
281 case 16: mode.graphtype = GT_16BIT; break;
|
|
|
282 case 24: mode.graphtype = GT_24BIT; break;
|
|
|
283 case 32: mode.graphtype = GT_32BIT; break;
|
|
|
284 default:
|
|
|
285 SDL_SetError("Unknown SDL bit depth, using GT_AUTO....\n");
|
|
|
286 mode.graphtype = GT_AUTO;
|
|
|
287 }
|
|
|
288
|
|
|
289 /* Validate mode, autodetecting any GGI_AUTO or GT_AUTO fields */
|
|
|
290 ggiCheckMode(VIS, &mode);
|
|
|
291
|
|
|
292 /* At this point we should have a valid mode - try to set it */
|
|
|
293 err = ggiSetMode(VIS, &mode);
|
|
|
294
|
|
|
295 /* If we couldn't set _any_ modes, something is very wrong */
|
|
|
296 if (err)
|
|
|
297 {
|
|
|
298 SDL_SetError("Can't set a mode!\n");
|
|
|
299 ggiClose(VIS);
|
|
|
300 ggiExit();
|
|
|
301 GGI_VideoQuit(NULL);
|
|
|
302 }
|
|
|
303
|
|
|
304 /* Set a palette for palletized modes */
|
|
|
305 if (GT_SCHEME(mode.graphtype) == GT_PALETTE)
|
|
|
306 {
|
|
|
307 ggiSetColorfulPalette(VIS);
|
|
|
308 ggiGetPalette(VIS, 0, 1 << bpp, pal);
|
|
|
309 }
|
|
|
310
|
|
|
311 db = ggiDBGetBuffer(VIS, 0);
|
|
|
312
|
|
|
313 /* Set up the new mode framebuffer */
|
|
|
314 current->flags = (SDL_FULLSCREEN | SDL_HWSURFACE);
|
|
|
315 current->w = mode.virt.x;
|
|
|
316 current->h = mode.virt.y;
|
|
|
317 current->pitch = db->buffer.plb.stride;
|
|
|
318 current->pixels = db->read;
|
|
|
319
|
|
|
320 /* Set the blit function */
|
|
|
321 this->UpdateRects = GGI_DirectUpdate;
|
|
|
322
|
|
|
323 /* We're done */
|
|
|
324 return(current);
|
|
|
325 }
|
|
|
326
|
|
|
327 static int GGI_AllocHWSurface(_THIS, SDL_Surface *surface)
|
|
|
328 {
|
|
|
329 return(-1);
|
|
|
330 }
|
|
|
331 static void GGI_FreeHWSurface(_THIS, SDL_Surface *surface)
|
|
|
332 {
|
|
|
333 return;
|
|
|
334 }
|
|
|
335 static int GGI_LockHWSurface(_THIS, SDL_Surface *surface)
|
|
|
336 {
|
|
|
337 return(0);
|
|
|
338 }
|
|
|
339 static void GGI_UnlockHWSurface(_THIS, SDL_Surface *surface)
|
|
|
340 {
|
|
|
341 return;
|
|
|
342 }
|
|
|
343
|
|
|
344 static void GGI_DirectUpdate(_THIS, int numrects, SDL_Rect *rects)
|
|
|
345 {
|
|
|
346 int i;
|
|
|
347
|
|
|
348 /* ggiFlush(VIS); */
|
|
|
349
|
|
|
350 for (i = 0; i < numrects; i++)
|
|
|
351 {
|
|
|
352 ggiFlushRegion(VIS, rects[i].x, rects[i].y, rects[i].w, rects[i].h);
|
|
|
353 }
|
|
|
354 return;
|
|
|
355 }
|
|
|
356
|
|
|
357 int GGI_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
|
|
|
358 {
|
|
|
359 int i;
|
|
|
360 ggi_color pal[256];
|
|
|
361
|
|
|
362 /* Set up the colormap */
|
|
|
363 for (i = 0; i < ncolors; i++)
|
|
|
364 {
|
|
|
365 pal[i].r = (colors[i].r << 8) | colors[i].r;
|
|
|
366 pal[i].g = (colors[i].g << 8) | colors[i].g;
|
|
|
367 pal[i].b = (colors[i].b << 8) | colors[i].b;
|
|
|
368 }
|
|
|
369
|
|
|
370 ggiSetPalette(VIS, firstcolor, ncolors, pal);
|
|
|
371
|
|
|
372 return 1;
|
|
|
373 }
|
|
|
374
|
|
|
375 void GGI_VideoQuit(_THIS)
|
|
|
376 {
|
|
|
377 }
|
|
|
378 void GGI_FinalQuit(void)
|
|
|
379 {
|
|
|
380 }
|
