diff options
author | Franklin Wei <git@fwei.tk> | 2017-01-21 15:18:31 -0500 |
---|---|---|
committer | Franklin Wei <git@fwei.tk> | 2017-12-23 21:01:26 -0500 |
commit | a855d6202536ff28e5aae4f22a0f31d8f5b325d0 (patch) | |
tree | 8c75f224dd64ed360505afa8843d016b0d75000b /apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c | |
parent | 01c6dcf6c7b9bb1ad2fa0450f99bacc5f3d3e04b (diff) | |
download | rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.tar.gz rockbox-a855d6202536ff28e5aae4f22a0f31d8f5b325d0.zip |
Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.
Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
Diffstat (limited to 'apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c')
-rw-r--r-- | apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c | 1982 |
1 files changed, 1982 insertions, 0 deletions
diff --git a/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c b/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c new file mode 100644 index 0000000000..5e5880908d --- /dev/null +++ b/apps/plugins/sdl/src/video/fbcon/SDL_fbvideo.c | |||
@@ -0,0 +1,1982 @@ | |||
1 | /* | ||
2 | SDL - Simple DirectMedia Layer | ||
3 | Copyright (C) 1997-2012 Sam Lantinga | ||
4 | |||
5 | This library is free software; you can redistribute it and/or | ||
6 | modify it under the terms of the GNU Lesser General Public | ||
7 | License as published by the Free Software Foundation; either | ||
8 | version 2.1 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 | Lesser General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Lesser General Public | ||
16 | License along with this library; if not, write to the Free Software | ||
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
18 | |||
19 | Sam Lantinga | ||
20 | slouken@libsdl.org | ||
21 | */ | ||
22 | #include "SDL_config.h" | ||
23 | |||
24 | /* Framebuffer console based SDL video driver implementation. | ||
25 | */ | ||
26 | |||
27 | #include <stdio.h> | ||
28 | #include <fcntl.h> | ||
29 | #include <unistd.h> | ||
30 | #include <sys/ioctl.h> | ||
31 | #include <sys/mman.h> | ||
32 | |||
33 | #ifndef HAVE_GETPAGESIZE | ||
34 | #include <asm/page.h> /* For definition of PAGE_SIZE */ | ||
35 | #endif | ||
36 | |||
37 | #include <linux/vt.h> | ||
38 | |||
39 | #include "SDL_video.h" | ||
40 | #include "SDL_mouse.h" | ||
41 | #include "../SDL_sysvideo.h" | ||
42 | #include "../SDL_pixels_c.h" | ||
43 | #include "../../events/SDL_events_c.h" | ||
44 | #include "SDL_fbvideo.h" | ||
45 | #include "SDL_fbmouse_c.h" | ||
46 | #include "SDL_fbevents_c.h" | ||
47 | #include "SDL_fb3dfx.h" | ||
48 | #include "SDL_fbmatrox.h" | ||
49 | #include "SDL_fbriva.h" | ||
50 | |||
51 | /*#define FBCON_DEBUG*/ | ||
52 | |||
53 | #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | ||
54 | #define VGA16_FBCON_SUPPORT | ||
55 | #include <sys/io.h> /* For ioperm() */ | ||
56 | #ifndef FB_AUX_VGA_PLANES_VGA4 | ||
57 | #define FB_AUX_VGA_PLANES_VGA4 0 | ||
58 | #endif | ||
59 | /* | ||
60 | static inline void outb (unsigned char value, unsigned short port) | ||
61 | { | ||
62 | __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | ||
63 | } | ||
64 | */ | ||
65 | #endif /* FB_TYPE_VGA_PLANES */ | ||
66 | |||
67 | /* A list of video resolutions that we query for (sorted largest to smallest) */ | ||
68 | static const SDL_Rect checkres[] = { | ||
69 | { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ | ||
70 | { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | ||
71 | { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | ||
72 | { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | ||
73 | { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | ||
74 | { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | ||
75 | { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | ||
76 | { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | ||
77 | { 0, 0, 720, 576 }, /* PAL */ | ||
78 | { 0, 0, 720, 480 }, /* NTSC */ | ||
79 | { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ | ||
80 | { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | ||
81 | { 0, 0, 512, 384 }, | ||
82 | { 0, 0, 320, 240 }, | ||
83 | { 0, 0, 320, 200 } | ||
84 | }; | ||
85 | static const struct { | ||
86 | int xres; | ||
87 | int yres; | ||
88 | int pixclock; | ||
89 | int left; | ||
90 | int right; | ||
91 | int upper; | ||
92 | int lower; | ||
93 | int hslen; | ||
94 | int vslen; | ||
95 | int sync; | ||
96 | int vmode; | ||
97 | } vesa_timings[] = { | ||
98 | #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | ||
99 | { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | ||
100 | { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | ||
101 | { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | ||
102 | { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | ||
103 | { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | ||
104 | { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | ||
105 | { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | ||
106 | { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | ||
107 | { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | ||
108 | { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | ||
109 | #else | ||
110 | /* You can generate these timings from your XF86Config file using | ||
111 | the 'modeline2fb' perl script included with the fbset package. | ||
112 | These timings were generated for Matrox Millenium I, 15" monitor. | ||
113 | */ | ||
114 | { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | ||
115 | { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | ||
116 | { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | ||
117 | { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | ||
118 | { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | ||
119 | { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | ||
120 | { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | ||
121 | { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | ||
122 | { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | ||
123 | { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | ||
124 | { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | ||
125 | { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | ||
126 | { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | ||
127 | #endif | ||
128 | }; | ||
129 | enum { | ||
130 | FBCON_ROTATE_NONE = 0, | ||
131 | FBCON_ROTATE_CCW = 90, | ||
132 | FBCON_ROTATE_UD = 180, | ||
133 | FBCON_ROTATE_CW = 270 | ||
134 | }; | ||
135 | |||
136 | #define min(a,b) ((a)<(b)?(a):(b)) | ||
137 | |||
138 | /* Initialization/Query functions */ | ||
139 | static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | ||
140 | static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | ||
141 | static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | ||
142 | #ifdef VGA16_FBCON_SUPPORT | ||
143 | static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | ||
144 | #endif | ||
145 | static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | ||
146 | static void FB_VideoQuit(_THIS); | ||
147 | |||
148 | /* Hardware surface functions */ | ||
149 | static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); | ||
150 | static void FB_FreeHWSurfaces(_THIS); | ||
151 | static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | ||
152 | static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | ||
153 | static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | ||
154 | static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | ||
155 | static void FB_WaitVBL(_THIS); | ||
156 | static void FB_WaitIdle(_THIS); | ||
157 | static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); | ||
158 | |||
159 | /* Internal palette functions */ | ||
160 | static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | ||
161 | struct fb_var_screeninfo *vinfo); | ||
162 | static void FB_RestorePalette(_THIS); | ||
163 | |||
164 | /* Shadow buffer functions */ | ||
165 | static FB_bitBlit FB_blit16; | ||
166 | static FB_bitBlit FB_blit16blocked; | ||
167 | |||
168 | static int SDL_getpagesize(void) | ||
169 | { | ||
170 | #ifdef HAVE_GETPAGESIZE | ||
171 | return getpagesize(); | ||
172 | #elif defined(PAGE_SIZE) | ||
173 | return PAGE_SIZE; | ||
174 | #else | ||
175 | #error Can not determine system page size. | ||
176 | return 4096; /* this is what it USED to be in Linux... */ | ||
177 | #endif | ||
178 | } | ||
179 | |||
180 | |||
181 | /* Small wrapper for mmap() so we can play nicely with no-mmu hosts | ||
182 | * (non-mmu hosts disallow the MAP_SHARED flag) */ | ||
183 | |||
184 | static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) | ||
185 | { | ||
186 | void *ret; | ||
187 | ret = mmap(start, length, prot, flags, fd, offset); | ||
188 | if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { | ||
189 | ret = mmap(start, length, prot, | ||
190 | (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); | ||
191 | } | ||
192 | return ret; | ||
193 | } | ||
194 | |||
195 | /* FB driver bootstrap functions */ | ||
196 | |||
197 | static int FB_Available(void) | ||
198 | { | ||
199 | int console = -1; | ||
200 | /* Added check for /fb/0 (devfs) */ | ||
201 | /* but - use environment variable first... if it fails, still check defaults */ | ||
202 | int idx = 0; | ||
203 | const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; | ||
204 | |||
205 | SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); | ||
206 | if( !SDL_fbdevs[0] ) | ||
207 | idx++; | ||
208 | for( ; SDL_fbdevs[idx]; idx++ ) | ||
209 | { | ||
210 | console = open(SDL_fbdevs[idx], O_RDWR, 0); | ||
211 | if ( console >= 0 ) { | ||
212 | close(console); | ||
213 | break; | ||
214 | } | ||
215 | } | ||
216 | return(console >= 0); | ||
217 | } | ||
218 | |||
219 | static void FB_DeleteDevice(SDL_VideoDevice *device) | ||
220 | { | ||
221 | SDL_free(device->hidden); | ||
222 | SDL_free(device); | ||
223 | } | ||
224 | |||
225 | static SDL_VideoDevice *FB_CreateDevice(int devindex) | ||
226 | { | ||
227 | SDL_VideoDevice *this; | ||
228 | |||
229 | /* Initialize all variables that we clean on shutdown */ | ||
230 | this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); | ||
231 | if ( this ) { | ||
232 | SDL_memset(this, 0, (sizeof *this)); | ||
233 | this->hidden = (struct SDL_PrivateVideoData *) | ||
234 | SDL_malloc((sizeof *this->hidden)); | ||
235 | } | ||
236 | if ( (this == NULL) || (this->hidden == NULL) ) { | ||
237 | SDL_OutOfMemory(); | ||
238 | if ( this ) { | ||
239 | SDL_free(this); | ||
240 | } | ||
241 | return(0); | ||
242 | } | ||
243 | SDL_memset(this->hidden, 0, (sizeof *this->hidden)); | ||
244 | wait_vbl = FB_WaitVBL; | ||
245 | wait_idle = FB_WaitIdle; | ||
246 | mouse_fd = -1; | ||
247 | keyboard_fd = -1; | ||
248 | |||
249 | /* Set the function pointers */ | ||
250 | this->VideoInit = FB_VideoInit; | ||
251 | this->ListModes = FB_ListModes; | ||
252 | this->SetVideoMode = FB_SetVideoMode; | ||
253 | this->SetColors = FB_SetColors; | ||
254 | this->UpdateRects = NULL; | ||
255 | this->VideoQuit = FB_VideoQuit; | ||
256 | this->AllocHWSurface = FB_AllocHWSurface; | ||
257 | this->CheckHWBlit = NULL; | ||
258 | this->FillHWRect = NULL; | ||
259 | this->SetHWColorKey = NULL; | ||
260 | this->SetHWAlpha = NULL; | ||
261 | this->LockHWSurface = FB_LockHWSurface; | ||
262 | this->UnlockHWSurface = FB_UnlockHWSurface; | ||
263 | this->FlipHWSurface = FB_FlipHWSurface; | ||
264 | this->FreeHWSurface = FB_FreeHWSurface; | ||
265 | this->SetCaption = NULL; | ||
266 | this->SetIcon = NULL; | ||
267 | this->IconifyWindow = NULL; | ||
268 | this->GrabInput = NULL; | ||
269 | this->GetWMInfo = NULL; | ||
270 | this->InitOSKeymap = FB_InitOSKeymap; | ||
271 | this->PumpEvents = FB_PumpEvents; | ||
272 | |||
273 | this->free = FB_DeleteDevice; | ||
274 | |||
275 | return this; | ||
276 | } | ||
277 | |||
278 | VideoBootStrap FBCON_bootstrap = { | ||
279 | "fbcon", "Linux Framebuffer Console", | ||
280 | FB_Available, FB_CreateDevice | ||
281 | }; | ||
282 | |||
283 | #define FB_MODES_DB "/etc/fb.modes" | ||
284 | |||
285 | static int read_fbmodes_line(FILE*f, char* line, int length) | ||
286 | { | ||
287 | int blank; | ||
288 | char* c; | ||
289 | int i; | ||
290 | |||
291 | blank=0; | ||
292 | /* find a relevant line */ | ||
293 | do | ||
294 | { | ||
295 | if (!fgets(line,length,f)) | ||
296 | return 0; | ||
297 | c=line; | ||
298 | while(((*c=='\t')||(*c==' '))&&(*c!=0)) | ||
299 | c++; | ||
300 | |||
301 | if ((*c=='\n')||(*c=='#')||(*c==0)) | ||
302 | blank=1; | ||
303 | else | ||
304 | blank=0; | ||
305 | } | ||
306 | while(blank); | ||
307 | /* remove whitespace at the begining of the string */ | ||
308 | i=0; | ||
309 | do | ||
310 | { | ||
311 | line[i]=c[i]; | ||
312 | i++; | ||
313 | } | ||
314 | while(c[i]!=0); | ||
315 | return 1; | ||
316 | } | ||
317 | |||
318 | static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) | ||
319 | { | ||
320 | char line[1024]; | ||
321 | char option[256]; | ||
322 | |||
323 | /* Find a "geometry" */ | ||
324 | do { | ||
325 | if (read_fbmodes_line(f, line, sizeof(line))==0) | ||
326 | return 0; | ||
327 | if (SDL_strncmp(line,"geometry",8)==0) | ||
328 | break; | ||
329 | } | ||
330 | while(1); | ||
331 | |||
332 | SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, | ||
333 | &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); | ||
334 | if (read_fbmodes_line(f, line, sizeof(line))==0) | ||
335 | return 0; | ||
336 | |||
337 | SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, | ||
338 | &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, | ||
339 | &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); | ||
340 | |||
341 | vinfo->sync=0; | ||
342 | vinfo->vmode=FB_VMODE_NONINTERLACED; | ||
343 | |||
344 | /* Parse misc options */ | ||
345 | do { | ||
346 | if (read_fbmodes_line(f, line, sizeof(line))==0) | ||
347 | return 0; | ||
348 | |||
349 | if (SDL_strncmp(line,"hsync",5)==0) { | ||
350 | SDL_sscanf(line,"hsync %s",option); | ||
351 | if (SDL_strncmp(option,"high",4)==0) | ||
352 | vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; | ||
353 | } | ||
354 | else if (SDL_strncmp(line,"vsync",5)==0) { | ||
355 | SDL_sscanf(line,"vsync %s",option); | ||
356 | if (SDL_strncmp(option,"high",4)==0) | ||
357 | vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; | ||
358 | } | ||
359 | else if (SDL_strncmp(line,"csync",5)==0) { | ||
360 | SDL_sscanf(line,"csync %s",option); | ||
361 | if (SDL_strncmp(option,"high",4)==0) | ||
362 | vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; | ||
363 | } | ||
364 | else if (SDL_strncmp(line,"extsync",5)==0) { | ||
365 | SDL_sscanf(line,"extsync %s",option); | ||
366 | if (SDL_strncmp(option,"true",4)==0) | ||
367 | vinfo->sync |= FB_SYNC_EXT; | ||
368 | } | ||
369 | else if (SDL_strncmp(line,"laced",5)==0) { | ||
370 | SDL_sscanf(line,"laced %s",option); | ||
371 | if (SDL_strncmp(option,"true",4)==0) | ||
372 | vinfo->vmode |= FB_VMODE_INTERLACED; | ||
373 | } | ||
374 | else if (SDL_strncmp(line,"double",6)==0) { | ||
375 | SDL_sscanf(line,"double %s",option); | ||
376 | if (SDL_strncmp(option,"true",4)==0) | ||
377 | vinfo->vmode |= FB_VMODE_DOUBLE; | ||
378 | } | ||
379 | } | ||
380 | while(SDL_strncmp(line,"endmode",7)!=0); | ||
381 | |||
382 | return 1; | ||
383 | } | ||
384 | |||
385 | static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, | ||
386 | int index, unsigned int *w, unsigned int *h) | ||
387 | { | ||
388 | int mode_okay; | ||
389 | |||
390 | mode_okay = 0; | ||
391 | vinfo->bits_per_pixel = (index+1)*8; | ||
392 | vinfo->xres = *w; | ||
393 | vinfo->xres_virtual = *w; | ||
394 | vinfo->yres = *h; | ||
395 | vinfo->yres_virtual = *h; | ||
396 | vinfo->activate = FB_ACTIVATE_TEST; | ||
397 | if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | ||
398 | #ifdef FBCON_DEBUG | ||
399 | fprintf(stderr, "Checked mode %dx%d at %d bpp, got mode %dx%d at %d bpp\n", *w, *h, (index+1)*8, vinfo->xres, vinfo->yres, vinfo->bits_per_pixel); | ||
400 | #endif | ||
401 | if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | ||
402 | *w = vinfo->xres; | ||
403 | *h = vinfo->yres; | ||
404 | mode_okay = 1; | ||
405 | } | ||
406 | } | ||
407 | return mode_okay; | ||
408 | } | ||
409 | |||
410 | static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) | ||
411 | { | ||
412 | SDL_Rect *mode; | ||
413 | int i; | ||
414 | int next_mode; | ||
415 | |||
416 | /* Check to see if we already have this mode */ | ||
417 | if ( SDL_nummodes[index] > 0 ) { | ||
418 | mode = SDL_modelist[index][SDL_nummodes[index]-1]; | ||
419 | if ( (mode->w == w) && (mode->h == h) ) { | ||
420 | #ifdef FBCON_DEBUG | ||
421 | fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | ||
422 | #endif | ||
423 | return(0); | ||
424 | } | ||
425 | } | ||
426 | |||
427 | /* Only allow a mode if we have a valid timing for it */ | ||
428 | if ( check_timings ) { | ||
429 | int found_timing = 0; | ||
430 | for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | ||
431 | if ( (w == vesa_timings[i].xres) && | ||
432 | (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { | ||
433 | found_timing = 1; | ||
434 | break; | ||
435 | } | ||
436 | } | ||
437 | if ( !found_timing ) { | ||
438 | #ifdef FBCON_DEBUG | ||
439 | fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); | ||
440 | #endif | ||
441 | return(0); | ||
442 | } | ||
443 | } | ||
444 | |||
445 | /* Set up the new video mode rectangle */ | ||
446 | mode = (SDL_Rect *)SDL_malloc(sizeof *mode); | ||
447 | if ( mode == NULL ) { | ||
448 | SDL_OutOfMemory(); | ||
449 | return(-1); | ||
450 | } | ||
451 | mode->x = 0; | ||
452 | mode->y = 0; | ||
453 | mode->w = w; | ||
454 | mode->h = h; | ||
455 | #ifdef FBCON_DEBUG | ||
456 | fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | ||
457 | #endif | ||
458 | |||
459 | /* Allocate the new list of modes, and fill in the new mode */ | ||
460 | next_mode = SDL_nummodes[index]; | ||
461 | SDL_modelist[index] = (SDL_Rect **) | ||
462 | SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | ||
463 | if ( SDL_modelist[index] == NULL ) { | ||
464 | SDL_OutOfMemory(); | ||
465 | SDL_nummodes[index] = 0; | ||
466 | SDL_free(mode); | ||
467 | return(-1); | ||
468 | } | ||
469 | SDL_modelist[index][next_mode] = mode; | ||
470 | SDL_modelist[index][next_mode+1] = NULL; | ||
471 | SDL_nummodes[index]++; | ||
472 | |||
473 | return(0); | ||
474 | } | ||
475 | |||
476 | static int cmpmodes(const void *va, const void *vb) | ||
477 | { | ||
478 | const SDL_Rect *a = *(const SDL_Rect**)va; | ||
479 | const SDL_Rect *b = *(const SDL_Rect**)vb; | ||
480 | if ( a->h == b->h ) | ||
481 | return b->w - a->w; | ||
482 | else | ||
483 | return b->h - a->h; | ||
484 | } | ||
485 | |||
486 | static void FB_SortModes(_THIS) | ||
487 | { | ||
488 | int i; | ||
489 | for ( i=0; i<NUM_MODELISTS; ++i ) { | ||
490 | if ( SDL_nummodes[i] > 0 ) { | ||
491 | SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); | ||
492 | } | ||
493 | } | ||
494 | } | ||
495 | |||
496 | static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) | ||
497 | { | ||
498 | const int pagesize = SDL_getpagesize(); | ||
499 | struct fb_fix_screeninfo finfo; | ||
500 | struct fb_var_screeninfo vinfo; | ||
501 | int i, j; | ||
502 | int current_index; | ||
503 | unsigned int current_w; | ||
504 | unsigned int current_h; | ||
505 | const char *SDL_fbdev; | ||
506 | const char *rotation; | ||
507 | FILE *modesdb; | ||
508 | |||
509 | /* Initialize the library */ | ||
510 | SDL_fbdev = SDL_getenv("SDL_FBDEV"); | ||
511 | if ( SDL_fbdev == NULL ) { | ||
512 | SDL_fbdev = "/dev/fb0"; | ||
513 | } | ||
514 | console_fd = open(SDL_fbdev, O_RDWR, 0); | ||
515 | if ( console_fd < 0 ) { | ||
516 | SDL_SetError("Unable to open %s", SDL_fbdev); | ||
517 | return(-1); | ||
518 | } | ||
519 | |||
520 | #if !SDL_THREADS_DISABLED | ||
521 | /* Create the hardware surface lock mutex */ | ||
522 | hw_lock = SDL_CreateMutex(); | ||
523 | if ( hw_lock == NULL ) { | ||
524 | SDL_SetError("Unable to create lock mutex"); | ||
525 | FB_VideoQuit(this); | ||
526 | return(-1); | ||
527 | } | ||
528 | #endif | ||
529 | |||
530 | /* Get the type of video hardware */ | ||
531 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | ||
532 | SDL_SetError("Couldn't get console hardware info"); | ||
533 | FB_VideoQuit(this); | ||
534 | return(-1); | ||
535 | } | ||
536 | switch (finfo.type) { | ||
537 | case FB_TYPE_PACKED_PIXELS: | ||
538 | /* Supported, no worries.. */ | ||
539 | break; | ||
540 | #ifdef VGA16_FBCON_SUPPORT | ||
541 | case FB_TYPE_VGA_PLANES: | ||
542 | /* VGA16 is supported, but that's it */ | ||
543 | if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | ||
544 | if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | ||
545 | SDL_SetError("No I/O port permissions"); | ||
546 | FB_VideoQuit(this); | ||
547 | return(-1); | ||
548 | } | ||
549 | this->SetVideoMode = FB_SetVGA16Mode; | ||
550 | break; | ||
551 | } | ||
552 | /* Fall through to unsupported case */ | ||
553 | #endif /* VGA16_FBCON_SUPPORT */ | ||
554 | default: | ||
555 | SDL_SetError("Unsupported console hardware"); | ||
556 | FB_VideoQuit(this); | ||
557 | return(-1); | ||
558 | } | ||
559 | switch (finfo.visual) { | ||
560 | case FB_VISUAL_TRUECOLOR: | ||
561 | case FB_VISUAL_PSEUDOCOLOR: | ||
562 | case FB_VISUAL_STATIC_PSEUDOCOLOR: | ||
563 | case FB_VISUAL_DIRECTCOLOR: | ||
564 | break; | ||
565 | default: | ||
566 | SDL_SetError("Unsupported console hardware"); | ||
567 | FB_VideoQuit(this); | ||
568 | return(-1); | ||
569 | } | ||
570 | |||
571 | /* Check if the user wants to disable hardware acceleration */ | ||
572 | { const char *fb_accel; | ||
573 | fb_accel = SDL_getenv("SDL_FBACCEL"); | ||
574 | if ( fb_accel ) { | ||
575 | finfo.accel = SDL_atoi(fb_accel); | ||
576 | } | ||
577 | } | ||
578 | |||
579 | /* Memory map the device, compensating for buggy PPC mmap() */ | ||
580 | mapped_offset = (((long)finfo.smem_start) - | ||
581 | (((long)finfo.smem_start)&~(pagesize-1))); | ||
582 | mapped_memlen = finfo.smem_len+mapped_offset; | ||
583 | mapped_mem = do_mmap(NULL, mapped_memlen, | ||
584 | PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | ||
585 | if ( mapped_mem == (char *)-1 ) { | ||
586 | SDL_SetError("Unable to memory map the video hardware"); | ||
587 | mapped_mem = NULL; | ||
588 | FB_VideoQuit(this); | ||
589 | return(-1); | ||
590 | } | ||
591 | |||
592 | /* Determine the current screen depth */ | ||
593 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | ||
594 | SDL_SetError("Couldn't get console pixel format"); | ||
595 | FB_VideoQuit(this); | ||
596 | return(-1); | ||
597 | } | ||
598 | vformat->BitsPerPixel = vinfo.bits_per_pixel; | ||
599 | if ( vformat->BitsPerPixel < 8 ) { | ||
600 | /* Assuming VGA16, we handle this via a shadow framebuffer */ | ||
601 | vformat->BitsPerPixel = 8; | ||
602 | } | ||
603 | for ( i=0; i<vinfo.red.length; ++i ) { | ||
604 | vformat->Rmask <<= 1; | ||
605 | vformat->Rmask |= (0x00000001<<vinfo.red.offset); | ||
606 | } | ||
607 | for ( i=0; i<vinfo.green.length; ++i ) { | ||
608 | vformat->Gmask <<= 1; | ||
609 | vformat->Gmask |= (0x00000001<<vinfo.green.offset); | ||
610 | } | ||
611 | for ( i=0; i<vinfo.blue.length; ++i ) { | ||
612 | vformat->Bmask <<= 1; | ||
613 | vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | ||
614 | } | ||
615 | saved_vinfo = vinfo; | ||
616 | |||
617 | /* Save hardware palette, if needed */ | ||
618 | FB_SavePalette(this, &finfo, &vinfo); | ||
619 | |||
620 | /* If the I/O registers are available, memory map them so we | ||
621 | can take advantage of any supported hardware acceleration. | ||
622 | */ | ||
623 | vinfo.accel_flags = 0; /* Temporarily reserve registers */ | ||
624 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | ||
625 | if ( finfo.accel && finfo.mmio_len ) { | ||
626 | mapped_iolen = finfo.mmio_len; | ||
627 | mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | ||
628 | MAP_SHARED, console_fd, mapped_memlen); | ||
629 | if ( mapped_io == (char *)-1 ) { | ||
630 | /* Hmm, failed to memory map I/O registers */ | ||
631 | mapped_io = NULL; | ||
632 | } | ||
633 | } | ||
634 | |||
635 | rotate = FBCON_ROTATE_NONE; | ||
636 | rotation = SDL_getenv("SDL_VIDEO_FBCON_ROTATION"); | ||
637 | if (rotation != NULL) { | ||
638 | if (SDL_strlen(rotation) == 0) { | ||
639 | shadow_fb = 0; | ||
640 | rotate = FBCON_ROTATE_NONE; | ||
641 | #ifdef FBCON_DEBUG | ||
642 | printf("Not rotating, no shadow\n"); | ||
643 | #endif | ||
644 | } else if (!SDL_strcmp(rotation, "NONE")) { | ||
645 | shadow_fb = 1; | ||
646 | rotate = FBCON_ROTATE_NONE; | ||
647 | #ifdef FBCON_DEBUG | ||
648 | printf("Not rotating, but still using shadow\n"); | ||
649 | #endif | ||
650 | } else if (!SDL_strcmp(rotation, "CW")) { | ||
651 | shadow_fb = 1; | ||
652 | rotate = FBCON_ROTATE_CW; | ||
653 | #ifdef FBCON_DEBUG | ||
654 | printf("Rotating screen clockwise\n"); | ||
655 | #endif | ||
656 | } else if (!SDL_strcmp(rotation, "CCW")) { | ||
657 | shadow_fb = 1; | ||
658 | rotate = FBCON_ROTATE_CCW; | ||
659 | #ifdef FBCON_DEBUG | ||
660 | printf("Rotating screen counter clockwise\n"); | ||
661 | #endif | ||
662 | } else if (!SDL_strcmp(rotation, "UD")) { | ||
663 | shadow_fb = 1; | ||
664 | rotate = FBCON_ROTATE_UD; | ||
665 | #ifdef FBCON_DEBUG | ||
666 | printf("Rotating screen upside down\n"); | ||
667 | #endif | ||
668 | } else { | ||
669 | SDL_SetError("\"%s\" is not a valid value for " | ||
670 | "SDL_VIDEO_FBCON_ROTATION", rotation); | ||
671 | return(-1); | ||
672 | } | ||
673 | } | ||
674 | |||
675 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { | ||
676 | current_w = vinfo.yres; | ||
677 | current_h = vinfo.xres; | ||
678 | } else { | ||
679 | current_w = vinfo.xres; | ||
680 | current_h = vinfo.yres; | ||
681 | } | ||
682 | |||
683 | /* Query for the list of available video modes */ | ||
684 | current_index = ((vinfo.bits_per_pixel+7)/8)-1; | ||
685 | modesdb = fopen(FB_MODES_DB, "r"); | ||
686 | for ( i=0; i<NUM_MODELISTS; ++i ) { | ||
687 | SDL_nummodes[i] = 0; | ||
688 | SDL_modelist[i] = NULL; | ||
689 | } | ||
690 | if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { | ||
691 | FB_AddMode(this, current_index, current_w, current_h, 0); | ||
692 | } else if(modesdb) { | ||
693 | while ( read_fbmodes_mode(modesdb, &vinfo) ) { | ||
694 | for ( i=0; i<NUM_MODELISTS; ++i ) { | ||
695 | unsigned int w, h; | ||
696 | |||
697 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { | ||
698 | w = vinfo.yres; | ||
699 | h = vinfo.xres; | ||
700 | } else { | ||
701 | w = vinfo.xres; | ||
702 | h = vinfo.yres; | ||
703 | } | ||
704 | /* See if we are querying for the current mode */ | ||
705 | if ( i == current_index ) { | ||
706 | if ( (current_w > w) || (current_h > h) ) { | ||
707 | /* Only check once */ | ||
708 | FB_AddMode(this, i, current_w, current_h, 0); | ||
709 | current_index = -1; | ||
710 | } | ||
711 | } | ||
712 | if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { | ||
713 | FB_AddMode(this, i, w, h, 0); | ||
714 | } | ||
715 | } | ||
716 | } | ||
717 | fclose(modesdb); | ||
718 | FB_SortModes(this); | ||
719 | } else { | ||
720 | for ( i=0; i<NUM_MODELISTS; ++i ) { | ||
721 | for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { | ||
722 | unsigned int w, h; | ||
723 | |||
724 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { | ||
725 | w = checkres[j].h; | ||
726 | h = checkres[j].w; | ||
727 | } else { | ||
728 | w = checkres[j].w; | ||
729 | h = checkres[j].h; | ||
730 | } | ||
731 | /* See if we are querying for the current mode */ | ||
732 | if ( i == current_index ) { | ||
733 | if ( (current_w > w) || (current_h > h) ) { | ||
734 | /* Only check once */ | ||
735 | FB_AddMode(this, i, current_w, current_h, 0); | ||
736 | current_index = -1; | ||
737 | } | ||
738 | } | ||
739 | if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { | ||
740 | FB_AddMode(this, i, w, h, 1); | ||
741 | } | ||
742 | } | ||
743 | } | ||
744 | } | ||
745 | |||
746 | this->info.current_w = current_w; | ||
747 | this->info.current_h = current_h; | ||
748 | this->info.wm_available = 0; | ||
749 | this->info.hw_available = !shadow_fb; | ||
750 | this->info.video_mem = shadow_fb ? 0 : finfo.smem_len/1024; | ||
751 | /* Fill in our hardware acceleration capabilities */ | ||
752 | if ( mapped_io ) { | ||
753 | switch (finfo.accel) { | ||
754 | case FB_ACCEL_MATROX_MGA2064W: | ||
755 | case FB_ACCEL_MATROX_MGA1064SG: | ||
756 | case FB_ACCEL_MATROX_MGA2164W: | ||
757 | case FB_ACCEL_MATROX_MGA2164W_AGP: | ||
758 | case FB_ACCEL_MATROX_MGAG100: | ||
759 | /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | ||
760 | case FB_ACCEL_MATROX_MGAG400: | ||
761 | #ifdef FBACCEL_DEBUG | ||
762 | printf("Matrox hardware accelerator!\n"); | ||
763 | #endif | ||
764 | FB_MatroxAccel(this, finfo.accel); | ||
765 | break; | ||
766 | case FB_ACCEL_3DFX_BANSHEE: | ||
767 | #ifdef FBACCEL_DEBUG | ||
768 | printf("3DFX hardware accelerator!\n"); | ||
769 | #endif | ||
770 | FB_3DfxAccel(this, finfo.accel); | ||
771 | break; | ||
772 | case FB_ACCEL_NV3: | ||
773 | case FB_ACCEL_NV4: | ||
774 | #ifdef FBACCEL_DEBUG | ||
775 | printf("NVidia hardware accelerator!\n"); | ||
776 | #endif | ||
777 | FB_RivaAccel(this, finfo.accel); | ||
778 | break; | ||
779 | default: | ||
780 | #ifdef FBACCEL_DEBUG | ||
781 | printf("Unknown hardware accelerator.\n"); | ||
782 | #endif | ||
783 | break; | ||
784 | } | ||
785 | } | ||
786 | |||
787 | if (shadow_fb) { | ||
788 | shadow_mem = (char *)SDL_malloc(mapped_memlen); | ||
789 | if (shadow_mem == NULL) { | ||
790 | SDL_SetError("No memory for shadow"); | ||
791 | return (-1); | ||
792 | } | ||
793 | } | ||
794 | |||
795 | /* Enable mouse and keyboard support */ | ||
796 | if ( FB_OpenKeyboard(this) < 0 ) { | ||
797 | FB_VideoQuit(this); | ||
798 | return(-1); | ||
799 | } | ||
800 | if ( FB_OpenMouse(this) < 0 ) { | ||
801 | const char *sdl_nomouse; | ||
802 | |||
803 | sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); | ||
804 | if ( ! sdl_nomouse ) { | ||
805 | SDL_SetError("Unable to open mouse"); | ||
806 | FB_VideoQuit(this); | ||
807 | return(-1); | ||
808 | } | ||
809 | } | ||
810 | |||
811 | /* We're done! */ | ||
812 | return(0); | ||
813 | } | ||
814 | |||
815 | static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | ||
816 | { | ||
817 | return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | ||
818 | } | ||
819 | |||
820 | /* Various screen update functions available */ | ||
821 | static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | ||
822 | #ifdef VGA16_FBCON_SUPPORT | ||
823 | static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | ||
824 | #endif | ||
825 | |||
826 | #ifdef FBCON_DEBUG | ||
827 | static void print_vinfo(struct fb_var_screeninfo *vinfo) | ||
828 | { | ||
829 | fprintf(stderr, "Printing vinfo:\n"); | ||
830 | fprintf(stderr, "\txres: %d\n", vinfo->xres); | ||
831 | fprintf(stderr, "\tyres: %d\n", vinfo->yres); | ||
832 | fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | ||
833 | fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | ||
834 | fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | ||
835 | fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | ||
836 | fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | ||
837 | fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | ||
838 | fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | ||
839 | fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | ||
840 | fprintf(stderr, "\theight: %d\n", vinfo->height); | ||
841 | fprintf(stderr, "\twidth: %d\n", vinfo->width); | ||
842 | fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | ||
843 | fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | ||
844 | fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | ||
845 | fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | ||
846 | fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | ||
847 | fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | ||
848 | fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | ||
849 | fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | ||
850 | fprintf(stderr, "\tsync: %d\n", vinfo->sync); | ||
851 | fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | ||
852 | fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | ||
853 | fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | ||
854 | fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | ||
855 | fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | ||
856 | } | ||
857 | static void print_finfo(struct fb_fix_screeninfo *finfo) | ||
858 | { | ||
859 | fprintf(stderr, "Printing finfo:\n"); | ||
860 | fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | ||
861 | fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | ||
862 | fprintf(stderr, "\ttype = %d\n", finfo->type); | ||
863 | fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | ||
864 | fprintf(stderr, "\tvisual = %d\n", finfo->visual); | ||
865 | fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | ||
866 | fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | ||
867 | fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | ||
868 | fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | ||
869 | fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | ||
870 | fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | ||
871 | fprintf(stderr, "\taccel = %d\n", finfo->accel); | ||
872 | } | ||
873 | #endif | ||
874 | |||
875 | static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | ||
876 | { | ||
877 | int matched; | ||
878 | FILE *modesdb; | ||
879 | struct fb_var_screeninfo cinfo; | ||
880 | |||
881 | matched = 0; | ||
882 | modesdb = fopen(FB_MODES_DB, "r"); | ||
883 | if ( modesdb ) { | ||
884 | /* Parse the mode definition file */ | ||
885 | while ( read_fbmodes_mode(modesdb, &cinfo) ) { | ||
886 | if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && | ||
887 | (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { | ||
888 | vinfo->pixclock = cinfo.pixclock; | ||
889 | vinfo->left_margin = cinfo.left_margin; | ||
890 | vinfo->right_margin = cinfo.right_margin; | ||
891 | vinfo->upper_margin = cinfo.upper_margin; | ||
892 | vinfo->lower_margin = cinfo.lower_margin; | ||
893 | vinfo->hsync_len = cinfo.hsync_len; | ||
894 | vinfo->vsync_len = cinfo.vsync_len; | ||
895 | if ( matched ) { | ||
896 | break; | ||
897 | } | ||
898 | matched = 1; | ||
899 | } | ||
900 | } | ||
901 | fclose(modesdb); | ||
902 | } | ||
903 | return(matched); | ||
904 | } | ||
905 | |||
906 | static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | ||
907 | { | ||
908 | int matched; | ||
909 | int i; | ||
910 | |||
911 | /* Check for VESA timings */ | ||
912 | matched = 0; | ||
913 | for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | ||
914 | if ( (vinfo->xres == vesa_timings[i].xres) && | ||
915 | (vinfo->yres == vesa_timings[i].yres) ) { | ||
916 | #ifdef FBCON_DEBUG | ||
917 | fprintf(stderr, "Using VESA timings for %dx%d\n", | ||
918 | vinfo->xres, vinfo->yres); | ||
919 | #endif | ||
920 | if ( vesa_timings[i].pixclock ) { | ||
921 | vinfo->pixclock = vesa_timings[i].pixclock; | ||
922 | } | ||
923 | vinfo->left_margin = vesa_timings[i].left; | ||
924 | vinfo->right_margin = vesa_timings[i].right; | ||
925 | vinfo->upper_margin = vesa_timings[i].upper; | ||
926 | vinfo->lower_margin = vesa_timings[i].lower; | ||
927 | vinfo->hsync_len = vesa_timings[i].hslen; | ||
928 | vinfo->vsync_len = vesa_timings[i].vslen; | ||
929 | vinfo->sync = vesa_timings[i].sync; | ||
930 | vinfo->vmode = vesa_timings[i].vmode; | ||
931 | matched = 1; | ||
932 | break; | ||
933 | } | ||
934 | } | ||
935 | return(matched); | ||
936 | } | ||
937 | |||
938 | #ifdef VGA16_FBCON_SUPPORT | ||
939 | static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | ||
940 | int width, int height, int bpp, Uint32 flags) | ||
941 | { | ||
942 | struct fb_fix_screeninfo finfo; | ||
943 | struct fb_var_screeninfo vinfo; | ||
944 | |||
945 | /* Set the terminal into graphics mode */ | ||
946 | if ( FB_EnterGraphicsMode(this) < 0 ) { | ||
947 | return(NULL); | ||
948 | } | ||
949 | |||
950 | /* Restore the original palette */ | ||
951 | FB_RestorePalette(this); | ||
952 | |||
953 | /* Set the video mode and get the final screen format */ | ||
954 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | ||
955 | SDL_SetError("Couldn't get console screen info"); | ||
956 | return(NULL); | ||
957 | } | ||
958 | cache_vinfo = vinfo; | ||
959 | #ifdef FBCON_DEBUG | ||
960 | fprintf(stderr, "Printing actual vinfo:\n"); | ||
961 | print_vinfo(&vinfo); | ||
962 | #endif | ||
963 | if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | ||
964 | return(NULL); | ||
965 | } | ||
966 | current->format->palette->ncolors = 16; | ||
967 | |||
968 | /* Get the fixed information about the console hardware. | ||
969 | This is necessary since finfo.line_length changes. | ||
970 | */ | ||
971 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | ||
972 | SDL_SetError("Couldn't get console hardware info"); | ||
973 | return(NULL); | ||
974 | } | ||
975 | #ifdef FBCON_DEBUG | ||
976 | fprintf(stderr, "Printing actual finfo:\n"); | ||
977 | print_finfo(&finfo); | ||
978 | #endif | ||
979 | |||
980 | /* Save hardware palette, if needed */ | ||
981 | FB_SavePalette(this, &finfo, &vinfo); | ||
982 | |||
983 | /* Set up the new mode framebuffer */ | ||
984 | current->flags = SDL_FULLSCREEN; | ||
985 | current->w = vinfo.xres; | ||
986 | current->h = vinfo.yres; | ||
987 | current->pitch = current->w; | ||
988 | current->pixels = SDL_malloc(current->h*current->pitch); | ||
989 | |||
990 | /* Set the update rectangle function */ | ||
991 | this->UpdateRects = FB_VGA16Update; | ||
992 | |||
993 | /* We're done */ | ||
994 | return(current); | ||
995 | } | ||
996 | #endif /* VGA16_FBCON_SUPPORT */ | ||
997 | |||
998 | static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | ||
999 | int width, int height, int bpp, Uint32 flags) | ||
1000 | { | ||
1001 | struct fb_fix_screeninfo finfo; | ||
1002 | struct fb_var_screeninfo vinfo; | ||
1003 | int i; | ||
1004 | Uint32 Rmask; | ||
1005 | Uint32 Gmask; | ||
1006 | Uint32 Bmask; | ||
1007 | char *surfaces_mem; | ||
1008 | int surfaces_len; | ||
1009 | |||
1010 | /* Set the terminal into graphics mode */ | ||
1011 | if ( FB_EnterGraphicsMode(this) < 0 ) { | ||
1012 | return(NULL); | ||
1013 | } | ||
1014 | |||
1015 | /* Restore the original palette */ | ||
1016 | FB_RestorePalette(this); | ||
1017 | |||
1018 | /* Set the video mode and get the final screen format */ | ||
1019 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | ||
1020 | SDL_SetError("Couldn't get console screen info"); | ||
1021 | return(NULL); | ||
1022 | } | ||
1023 | #ifdef FBCON_DEBUG | ||
1024 | fprintf(stderr, "Printing original vinfo:\n"); | ||
1025 | print_vinfo(&vinfo); | ||
1026 | #endif | ||
1027 | /* Do not use double buffering with shadow buffer */ | ||
1028 | if (shadow_fb) { | ||
1029 | flags &= ~SDL_DOUBLEBUF; | ||
1030 | } | ||
1031 | |||
1032 | if ( (vinfo.xres != width) || (vinfo.yres != height) || | ||
1033 | (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | ||
1034 | vinfo.activate = FB_ACTIVATE_NOW; | ||
1035 | vinfo.accel_flags = 0; | ||
1036 | vinfo.bits_per_pixel = bpp; | ||
1037 | vinfo.xres = width; | ||
1038 | vinfo.xres_virtual = width; | ||
1039 | vinfo.yres = height; | ||
1040 | if ( flags & SDL_DOUBLEBUF ) { | ||
1041 | vinfo.yres_virtual = height*2; | ||
1042 | } else { | ||
1043 | vinfo.yres_virtual = height; | ||
1044 | } | ||
1045 | vinfo.xoffset = 0; | ||
1046 | vinfo.yoffset = 0; | ||
1047 | vinfo.red.length = vinfo.red.offset = 0; | ||
1048 | vinfo.green.length = vinfo.green.offset = 0; | ||
1049 | vinfo.blue.length = vinfo.blue.offset = 0; | ||
1050 | vinfo.transp.length = vinfo.transp.offset = 0; | ||
1051 | if ( ! choose_fbmodes_mode(&vinfo) ) { | ||
1052 | choose_vesa_mode(&vinfo); | ||
1053 | } | ||
1054 | #ifdef FBCON_DEBUG | ||
1055 | fprintf(stderr, "Printing wanted vinfo:\n"); | ||
1056 | print_vinfo(&vinfo); | ||
1057 | #endif | ||
1058 | if ( !shadow_fb && | ||
1059 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | ||
1060 | vinfo.yres_virtual = height; | ||
1061 | if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | ||
1062 | SDL_SetError("Couldn't set console screen info"); | ||
1063 | return(NULL); | ||
1064 | } | ||
1065 | } | ||
1066 | } else { | ||
1067 | int maxheight; | ||
1068 | |||
1069 | /* Figure out how much video memory is available */ | ||
1070 | if ( flags & SDL_DOUBLEBUF ) { | ||
1071 | maxheight = height*2; | ||
1072 | } else { | ||
1073 | maxheight = height; | ||
1074 | } | ||
1075 | if ( vinfo.yres_virtual > maxheight ) { | ||
1076 | vinfo.yres_virtual = maxheight; | ||
1077 | } | ||
1078 | } | ||
1079 | cache_vinfo = vinfo; | ||
1080 | #ifdef FBCON_DEBUG | ||
1081 | fprintf(stderr, "Printing actual vinfo:\n"); | ||
1082 | print_vinfo(&vinfo); | ||
1083 | #endif | ||
1084 | Rmask = 0; | ||
1085 | for ( i=0; i<vinfo.red.length; ++i ) { | ||
1086 | Rmask <<= 1; | ||
1087 | Rmask |= (0x00000001<<vinfo.red.offset); | ||
1088 | } | ||
1089 | Gmask = 0; | ||
1090 | for ( i=0; i<vinfo.green.length; ++i ) { | ||
1091 | Gmask <<= 1; | ||
1092 | Gmask |= (0x00000001<<vinfo.green.offset); | ||
1093 | } | ||
1094 | Bmask = 0; | ||
1095 | for ( i=0; i<vinfo.blue.length; ++i ) { | ||
1096 | Bmask <<= 1; | ||
1097 | Bmask |= (0x00000001<<vinfo.blue.offset); | ||
1098 | } | ||
1099 | if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | ||
1100 | Rmask, Gmask, Bmask, 0) ) { | ||
1101 | return(NULL); | ||
1102 | } | ||
1103 | |||
1104 | /* Get the fixed information about the console hardware. | ||
1105 | This is necessary since finfo.line_length changes. | ||
1106 | */ | ||
1107 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | ||
1108 | SDL_SetError("Couldn't get console hardware info"); | ||
1109 | return(NULL); | ||
1110 | } | ||
1111 | |||
1112 | /* Save hardware palette, if needed */ | ||
1113 | FB_SavePalette(this, &finfo, &vinfo); | ||
1114 | |||
1115 | if (shadow_fb) { | ||
1116 | if (vinfo.bits_per_pixel == 16) { | ||
1117 | blitFunc = (rotate == FBCON_ROTATE_NONE || | ||
1118 | rotate == FBCON_ROTATE_UD) ? | ||
1119 | FB_blit16 : FB_blit16blocked; | ||
1120 | } else { | ||
1121 | #ifdef FBCON_DEBUG | ||
1122 | fprintf(stderr, "Init vinfo:\n"); | ||
1123 | print_vinfo(&vinfo); | ||
1124 | #endif | ||
1125 | SDL_SetError("Using software buffer, but no blitter " | ||
1126 | "function is available for %d bpp.", | ||
1127 | vinfo.bits_per_pixel); | ||
1128 | return(NULL); | ||
1129 | } | ||
1130 | } | ||
1131 | |||
1132 | /* Set up the new mode framebuffer */ | ||
1133 | current->flags &= SDL_FULLSCREEN; | ||
1134 | if (shadow_fb) { | ||
1135 | current->flags |= SDL_SWSURFACE; | ||
1136 | } else { | ||
1137 | current->flags |= SDL_HWSURFACE; | ||
1138 | } | ||
1139 | current->w = vinfo.xres; | ||
1140 | current->h = vinfo.yres; | ||
1141 | if (shadow_fb) { | ||
1142 | current->pitch = current->w * ((vinfo.bits_per_pixel + 7) / 8); | ||
1143 | current->pixels = shadow_mem; | ||
1144 | physlinebytes = finfo.line_length; | ||
1145 | } else { | ||
1146 | current->pitch = finfo.line_length; | ||
1147 | current->pixels = mapped_mem+mapped_offset; | ||
1148 | } | ||
1149 | |||
1150 | /* Set up the information for hardware surfaces */ | ||
1151 | surfaces_mem = (char *)current->pixels + | ||
1152 | vinfo.yres_virtual*current->pitch; | ||
1153 | surfaces_len = (shadow_fb) ? | ||
1154 | 0 : (mapped_memlen-(surfaces_mem-mapped_mem)); | ||
1155 | |||
1156 | FB_FreeHWSurfaces(this); | ||
1157 | FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); | ||
1158 | |||
1159 | /* Let the application know we have a hardware palette */ | ||
1160 | switch (finfo.visual) { | ||
1161 | case FB_VISUAL_PSEUDOCOLOR: | ||
1162 | current->flags |= SDL_HWPALETTE; | ||
1163 | break; | ||
1164 | default: | ||
1165 | break; | ||
1166 | } | ||
1167 | |||
1168 | /* Update for double-buffering, if we can */ | ||
1169 | if ( flags & SDL_DOUBLEBUF ) { | ||
1170 | if ( vinfo.yres_virtual == (height*2) ) { | ||
1171 | current->flags |= SDL_DOUBLEBUF; | ||
1172 | flip_page = 0; | ||
1173 | flip_address[0] = (char *)current->pixels; | ||
1174 | flip_address[1] = (char *)current->pixels+ | ||
1175 | current->h*current->pitch; | ||
1176 | this->screen = current; | ||
1177 | FB_FlipHWSurface(this, current); | ||
1178 | this->screen = NULL; | ||
1179 | } | ||
1180 | } | ||
1181 | |||
1182 | /* Set the update rectangle function */ | ||
1183 | this->UpdateRects = FB_DirectUpdate; | ||
1184 | |||
1185 | /* We're done */ | ||
1186 | return(current); | ||
1187 | } | ||
1188 | |||
1189 | #ifdef FBCON_DEBUG | ||
1190 | void FB_DumpHWSurfaces(_THIS) | ||
1191 | { | ||
1192 | vidmem_bucket *bucket; | ||
1193 | |||
1194 | printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | ||
1195 | printf("\n"); | ||
1196 | printf(" Base Size\n"); | ||
1197 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | ||
1198 | printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | ||
1199 | if ( bucket->prev ) { | ||
1200 | if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | ||
1201 | printf("Warning, corrupt bucket list! (prev)\n"); | ||
1202 | } | ||
1203 | } else { | ||
1204 | if ( bucket != &surfaces ) { | ||
1205 | printf("Warning, corrupt bucket list! (!prev)\n"); | ||
1206 | } | ||
1207 | } | ||
1208 | if ( bucket->next ) { | ||
1209 | if ( bucket->next->base != bucket->base+bucket->size ) { | ||
1210 | printf("Warning, corrupt bucket list! (next)\n"); | ||
1211 | } | ||
1212 | } | ||
1213 | } | ||
1214 | printf("\n"); | ||
1215 | } | ||
1216 | #endif | ||
1217 | |||
1218 | static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) | ||
1219 | { | ||
1220 | vidmem_bucket *bucket; | ||
1221 | |||
1222 | surfaces_memtotal = size; | ||
1223 | surfaces_memleft = size; | ||
1224 | |||
1225 | if ( surfaces_memleft > 0 ) { | ||
1226 | bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); | ||
1227 | if ( bucket == NULL ) { | ||
1228 | SDL_OutOfMemory(); | ||
1229 | return(-1); | ||
1230 | } | ||
1231 | bucket->prev = &surfaces; | ||
1232 | bucket->used = 0; | ||
1233 | bucket->dirty = 0; | ||
1234 | bucket->base = base; | ||
1235 | bucket->size = size; | ||
1236 | bucket->next = NULL; | ||
1237 | } else { | ||
1238 | bucket = NULL; | ||
1239 | } | ||
1240 | |||
1241 | surfaces.prev = NULL; | ||
1242 | surfaces.used = 1; | ||
1243 | surfaces.dirty = 0; | ||
1244 | surfaces.base = screen->pixels; | ||
1245 | surfaces.size = (unsigned int)((long)base - (long)surfaces.base); | ||
1246 | surfaces.next = bucket; | ||
1247 | screen->hwdata = (struct private_hwdata *)&surfaces; | ||
1248 | return(0); | ||
1249 | } | ||
1250 | static void FB_FreeHWSurfaces(_THIS) | ||
1251 | { | ||
1252 | vidmem_bucket *bucket, *freeable; | ||
1253 | |||
1254 | bucket = surfaces.next; | ||
1255 | while ( bucket ) { | ||
1256 | freeable = bucket; | ||
1257 | bucket = bucket->next; | ||
1258 | SDL_free(freeable); | ||
1259 | } | ||
1260 | surfaces.next = NULL; | ||
1261 | } | ||
1262 | |||
1263 | static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | ||
1264 | { | ||
1265 | vidmem_bucket *bucket; | ||
1266 | int size; | ||
1267 | int extra; | ||
1268 | |||
1269 | /* Temporarily, we only allow surfaces the same width as display. | ||
1270 | Some blitters require the pitch between two hardware surfaces | ||
1271 | to be the same. Others have interesting alignment restrictions. | ||
1272 | Until someone who knows these details looks at the code... | ||
1273 | */ | ||
1274 | if ( surface->pitch > SDL_VideoSurface->pitch ) { | ||
1275 | SDL_SetError("Surface requested wider than screen"); | ||
1276 | return(-1); | ||
1277 | } | ||
1278 | surface->pitch = SDL_VideoSurface->pitch; | ||
1279 | size = surface->h * surface->pitch; | ||
1280 | #ifdef FBCON_DEBUG | ||
1281 | fprintf(stderr, "Allocating bucket of %d bytes\n", size); | ||
1282 | #endif | ||
1283 | |||
1284 | /* Quick check for available mem */ | ||
1285 | if ( size > surfaces_memleft ) { | ||
1286 | SDL_SetError("Not enough video memory"); | ||
1287 | return(-1); | ||
1288 | } | ||
1289 | |||
1290 | /* Search for an empty bucket big enough */ | ||
1291 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | ||
1292 | if ( ! bucket->used && (size <= bucket->size) ) { | ||
1293 | break; | ||
1294 | } | ||
1295 | } | ||
1296 | if ( bucket == NULL ) { | ||
1297 | SDL_SetError("Video memory too fragmented"); | ||
1298 | return(-1); | ||
1299 | } | ||
1300 | |||
1301 | /* Create a new bucket for left-over memory */ | ||
1302 | extra = (bucket->size - size); | ||
1303 | if ( extra ) { | ||
1304 | vidmem_bucket *newbucket; | ||
1305 | |||
1306 | #ifdef FBCON_DEBUG | ||
1307 | fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | ||
1308 | #endif | ||
1309 | newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); | ||
1310 | if ( newbucket == NULL ) { | ||
1311 | SDL_OutOfMemory(); | ||
1312 | return(-1); | ||
1313 | } | ||
1314 | newbucket->prev = bucket; | ||
1315 | newbucket->used = 0; | ||
1316 | newbucket->base = bucket->base+size; | ||
1317 | newbucket->size = extra; | ||
1318 | newbucket->next = bucket->next; | ||
1319 | if ( bucket->next ) { | ||
1320 | bucket->next->prev = newbucket; | ||
1321 | } | ||
1322 | bucket->next = newbucket; | ||
1323 | } | ||
1324 | |||
1325 | /* Set the current bucket values and return it! */ | ||
1326 | bucket->used = 1; | ||
1327 | bucket->size = size; | ||
1328 | bucket->dirty = 0; | ||
1329 | #ifdef FBCON_DEBUG | ||
1330 | fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | ||
1331 | #endif | ||
1332 | surfaces_memleft -= size; | ||
1333 | surface->flags |= SDL_HWSURFACE; | ||
1334 | surface->pixels = bucket->base; | ||
1335 | surface->hwdata = (struct private_hwdata *)bucket; | ||
1336 | return(0); | ||
1337 | } | ||
1338 | static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | ||
1339 | { | ||
1340 | vidmem_bucket *bucket, *freeable; | ||
1341 | |||
1342 | /* Look for the bucket in the current list */ | ||
1343 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | ||
1344 | if ( bucket == (vidmem_bucket *)surface->hwdata ) { | ||
1345 | break; | ||
1346 | } | ||
1347 | } | ||
1348 | if ( bucket && bucket->used ) { | ||
1349 | /* Add the memory back to the total */ | ||
1350 | #ifdef DGA_DEBUG | ||
1351 | printf("Freeing bucket of %d bytes\n", bucket->size); | ||
1352 | #endif | ||
1353 | surfaces_memleft += bucket->size; | ||
1354 | |||
1355 | /* Can we merge the space with surrounding buckets? */ | ||
1356 | bucket->used = 0; | ||
1357 | if ( bucket->next && ! bucket->next->used ) { | ||
1358 | #ifdef DGA_DEBUG | ||
1359 | printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); | ||
1360 | #endif | ||
1361 | freeable = bucket->next; | ||
1362 | bucket->size += bucket->next->size; | ||
1363 | bucket->next = bucket->next->next; | ||
1364 | if ( bucket->next ) { | ||
1365 | bucket->next->prev = bucket; | ||
1366 | } | ||
1367 | SDL_free(freeable); | ||
1368 | } | ||
1369 | if ( bucket->prev && ! bucket->prev->used ) { | ||
1370 | #ifdef DGA_DEBUG | ||
1371 | printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); | ||
1372 | #endif | ||
1373 | freeable = bucket; | ||
1374 | bucket->prev->size += bucket->size; | ||
1375 | bucket->prev->next = bucket->next; | ||
1376 | if ( bucket->next ) { | ||
1377 | bucket->next->prev = bucket->prev; | ||
1378 | } | ||
1379 | SDL_free(freeable); | ||
1380 | } | ||
1381 | } | ||
1382 | surface->pixels = NULL; | ||
1383 | surface->hwdata = NULL; | ||
1384 | } | ||
1385 | |||
1386 | static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | ||
1387 | { | ||
1388 | if ( switched_away ) { | ||
1389 | return -2; /* no hardware access */ | ||
1390 | } | ||
1391 | if ( surface == this->screen ) { | ||
1392 | SDL_mutexP(hw_lock); | ||
1393 | if ( FB_IsSurfaceBusy(surface) ) { | ||
1394 | FB_WaitBusySurfaces(this); | ||
1395 | } | ||
1396 | } else { | ||
1397 | if ( FB_IsSurfaceBusy(surface) ) { | ||
1398 | FB_WaitBusySurfaces(this); | ||
1399 | } | ||
1400 | } | ||
1401 | return(0); | ||
1402 | } | ||
1403 | static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | ||
1404 | { | ||
1405 | if ( surface == this->screen ) { | ||
1406 | SDL_mutexV(hw_lock); | ||
1407 | } | ||
1408 | } | ||
1409 | |||
1410 | static void FB_WaitVBL(_THIS) | ||
1411 | { | ||
1412 | #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | ||
1413 | ioctl(console_fd, FBIOWAITRETRACE, 0); | ||
1414 | #endif | ||
1415 | return; | ||
1416 | } | ||
1417 | |||
1418 | static void FB_WaitIdle(_THIS) | ||
1419 | { | ||
1420 | return; | ||
1421 | } | ||
1422 | |||
1423 | static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) | ||
1424 | { | ||
1425 | if ( switched_away ) { | ||
1426 | return -2; /* no hardware access */ | ||
1427 | } | ||
1428 | |||
1429 | /* Wait for vertical retrace and then flip display */ | ||
1430 | cache_vinfo.yoffset = flip_page*surface->h; | ||
1431 | if ( FB_IsSurfaceBusy(this->screen) ) { | ||
1432 | FB_WaitBusySurfaces(this); | ||
1433 | } | ||
1434 | wait_vbl(this); | ||
1435 | if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | ||
1436 | SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | ||
1437 | return(-1); | ||
1438 | } | ||
1439 | flip_page = !flip_page; | ||
1440 | |||
1441 | surface->pixels = flip_address[flip_page]; | ||
1442 | return(0); | ||
1443 | } | ||
1444 | |||
1445 | static void FB_blit16(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, | ||
1446 | Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) | ||
1447 | { | ||
1448 | int w; | ||
1449 | Uint16 *src_pos = (Uint16 *)byte_src_pos; | ||
1450 | Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | ||
1451 | |||
1452 | while (height) { | ||
1453 | Uint16 *src = src_pos; | ||
1454 | Uint16 *dst = dst_pos; | ||
1455 | for (w = width; w != 0; w--) { | ||
1456 | *dst = *src; | ||
1457 | src += src_right_delta; | ||
1458 | dst++; | ||
1459 | } | ||
1460 | dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); | ||
1461 | src_pos += src_down_delta; | ||
1462 | height--; | ||
1463 | } | ||
1464 | } | ||
1465 | |||
1466 | #define BLOCKSIZE_W 32 | ||
1467 | #define BLOCKSIZE_H 32 | ||
1468 | |||
1469 | static void FB_blit16blocked(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, | ||
1470 | Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) | ||
1471 | { | ||
1472 | int w; | ||
1473 | Uint16 *src_pos = (Uint16 *)byte_src_pos; | ||
1474 | Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | ||
1475 | |||
1476 | while (height > 0) { | ||
1477 | Uint16 *src = src_pos; | ||
1478 | Uint16 *dst = dst_pos; | ||
1479 | for (w = width; w > 0; w -= BLOCKSIZE_W) { | ||
1480 | FB_blit16((Uint8 *)src, | ||
1481 | src_right_delta, | ||
1482 | src_down_delta, | ||
1483 | (Uint8 *)dst, | ||
1484 | dst_linebytes, | ||
1485 | min(w, BLOCKSIZE_W), | ||
1486 | min(height, BLOCKSIZE_H)); | ||
1487 | src += src_right_delta * BLOCKSIZE_W; | ||
1488 | dst += BLOCKSIZE_W; | ||
1489 | } | ||
1490 | dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); | ||
1491 | src_pos += src_down_delta * BLOCKSIZE_H; | ||
1492 | height -= BLOCKSIZE_H; | ||
1493 | } | ||
1494 | } | ||
1495 | |||
1496 | static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | ||
1497 | { | ||
1498 | int width = cache_vinfo.xres; | ||
1499 | int height = cache_vinfo.yres; | ||
1500 | int bytes_per_pixel = (cache_vinfo.bits_per_pixel + 7) / 8; | ||
1501 | int i; | ||
1502 | |||
1503 | if (!shadow_fb) { | ||
1504 | /* The application is already updating the visible video memory */ | ||
1505 | return; | ||
1506 | } | ||
1507 | |||
1508 | if (cache_vinfo.bits_per_pixel != 16) { | ||
1509 | SDL_SetError("Shadow copy only implemented for 16 bpp"); | ||
1510 | return; | ||
1511 | } | ||
1512 | |||
1513 | for (i = 0; i < numrects; i++) { | ||
1514 | int x1, y1, x2, y2; | ||
1515 | int scr_x1, scr_y1, scr_x2, scr_y2; | ||
1516 | int sha_x1, sha_y1; | ||
1517 | int shadow_right_delta; /* Address change when moving right in dest */ | ||
1518 | int shadow_down_delta; /* Address change when moving down in dest */ | ||
1519 | char *src_start; | ||
1520 | char *dst_start; | ||
1521 | |||
1522 | x1 = rects[i].x; | ||
1523 | y1 = rects[i].y; | ||
1524 | x2 = x1 + rects[i].w; | ||
1525 | y2 = y1 + rects[i].h; | ||
1526 | |||
1527 | if (x1 < 0) { | ||
1528 | x1 = 0; | ||
1529 | } else if (x1 > width) { | ||
1530 | x1 = width; | ||
1531 | } | ||
1532 | if (x2 < 0) { | ||
1533 | x2 = 0; | ||
1534 | } else if (x2 > width) { | ||
1535 | x2 = width; | ||
1536 | } | ||
1537 | if (y1 < 0) { | ||
1538 | y1 = 0; | ||
1539 | } else if (y1 > height) { | ||
1540 | y1 = height; | ||
1541 | } | ||
1542 | if (y2 < 0) { | ||
1543 | y2 = 0; | ||
1544 | } else if (y2 > height) { | ||
1545 | y2 = height; | ||
1546 | } | ||
1547 | if (x2 <= x1 || y2 <= y1) { | ||
1548 | continue; | ||
1549 | } | ||
1550 | |||
1551 | switch (rotate) { | ||
1552 | case FBCON_ROTATE_NONE: | ||
1553 | sha_x1 = scr_x1 = x1; | ||
1554 | sha_y1 = scr_y1 = y1; | ||
1555 | scr_x2 = x2; | ||
1556 | scr_y2 = y2; | ||
1557 | shadow_right_delta = 1; | ||
1558 | shadow_down_delta = width; | ||
1559 | break; | ||
1560 | case FBCON_ROTATE_CCW: | ||
1561 | scr_x1 = y1; | ||
1562 | scr_y1 = width - x2; | ||
1563 | scr_x2 = y2; | ||
1564 | scr_y2 = width - x1; | ||
1565 | sha_x1 = x2 - 1; | ||
1566 | sha_y1 = y1; | ||
1567 | shadow_right_delta = width; | ||
1568 | shadow_down_delta = -1; | ||
1569 | break; | ||
1570 | case FBCON_ROTATE_UD: | ||
1571 | scr_x1 = width - x2; | ||
1572 | scr_y1 = height - y2; | ||
1573 | scr_x2 = width - x1; | ||
1574 | scr_y2 = height - y1; | ||
1575 | sha_x1 = x2 - 1; | ||
1576 | sha_y1 = y2 - 1; | ||
1577 | shadow_right_delta = -1; | ||
1578 | shadow_down_delta = -width; | ||
1579 | break; | ||
1580 | case FBCON_ROTATE_CW: | ||
1581 | scr_x1 = height - y2; | ||
1582 | scr_y1 = x1; | ||
1583 | scr_x2 = height - y1; | ||
1584 | scr_y2 = x2; | ||
1585 | sha_x1 = x1; | ||
1586 | sha_y1 = y2 - 1; | ||
1587 | shadow_right_delta = -width; | ||
1588 | shadow_down_delta = 1; | ||
1589 | break; | ||
1590 | default: | ||
1591 | SDL_SetError("Unknown rotation"); | ||
1592 | return; | ||
1593 | } | ||
1594 | |||
1595 | src_start = shadow_mem + | ||
1596 | (sha_y1 * width + sha_x1) * bytes_per_pixel; | ||
1597 | dst_start = mapped_mem + mapped_offset + scr_y1 * physlinebytes + | ||
1598 | scr_x1 * bytes_per_pixel; | ||
1599 | |||
1600 | blitFunc((Uint8 *) src_start, | ||
1601 | shadow_right_delta, | ||
1602 | shadow_down_delta, | ||
1603 | (Uint8 *) dst_start, | ||
1604 | physlinebytes, | ||
1605 | scr_x2 - scr_x1, | ||
1606 | scr_y2 - scr_y1); | ||
1607 | } | ||
1608 | } | ||
1609 | |||
1610 | #ifdef VGA16_FBCON_SUPPORT | ||
1611 | /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | ||
1612 | #define writeGr(index, value) \ | ||
1613 | outb(index, 0x3CE); \ | ||
1614 | outb(value, 0x3CF); | ||
1615 | #define writeSeq(index, value) \ | ||
1616 | outb(index, 0x3C4); \ | ||
1617 | outb(value, 0x3C5); | ||
1618 | |||
1619 | static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | ||
1620 | { | ||
1621 | SDL_Surface *screen; | ||
1622 | int width, height, FBPitch, left, i, j, SRCPitch, phase; | ||
1623 | register Uint32 m; | ||
1624 | Uint8 s1, s2, s3, s4; | ||
1625 | Uint32 *src, *srcPtr; | ||
1626 | Uint8 *dst, *dstPtr; | ||
1627 | |||
1628 | if ( switched_away ) { | ||
1629 | return; /* no hardware access */ | ||
1630 | } | ||
1631 | |||
1632 | screen = this->screen; | ||
1633 | FBPitch = screen->w >> 3; | ||
1634 | SRCPitch = screen->pitch >> 2; | ||
1635 | |||
1636 | writeGr(0x03, 0x00); | ||
1637 | writeGr(0x05, 0x00); | ||
1638 | writeGr(0x01, 0x00); | ||
1639 | writeGr(0x08, 0xFF); | ||
1640 | |||
1641 | while(numrects--) { | ||
1642 | left = rects->x & ~7; | ||
1643 | width = (rects->w + 7) >> 3; | ||
1644 | height = rects->h; | ||
1645 | src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | ||
1646 | dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | ||
1647 | |||
1648 | if((phase = (long)dst & 3L)) { | ||
1649 | phase = 4 - phase; | ||
1650 | if(phase > width) phase = width; | ||
1651 | width -= phase; | ||
1652 | } | ||
1653 | |||
1654 | while(height--) { | ||
1655 | writeSeq(0x02, 1 << 0); | ||
1656 | dstPtr = dst; | ||
1657 | srcPtr = src; | ||
1658 | i = width; | ||
1659 | j = phase; | ||
1660 | while(j--) { | ||
1661 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | ||
1662 | *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1663 | srcPtr += 2; | ||
1664 | } | ||
1665 | while(i >= 4) { | ||
1666 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | ||
1667 | s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1668 | m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | ||
1669 | s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1670 | m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | ||
1671 | s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1672 | m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | ||
1673 | s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1674 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | ||
1675 | srcPtr += 8; | ||
1676 | dstPtr += 4; | ||
1677 | i -= 4; | ||
1678 | } | ||
1679 | while(i--) { | ||
1680 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | ||
1681 | *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | ||
1682 | srcPtr += 2; | ||
1683 | } | ||
1684 | |||
1685 | writeSeq(0x02, 1 << 1); | ||
1686 | dstPtr = dst; | ||
1687 | srcPtr = src; | ||
1688 | i = width; | ||
1689 | j = phase; | ||
1690 | while(j--) { | ||
1691 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | ||
1692 | *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1693 | srcPtr += 2; | ||
1694 | } | ||
1695 | while(i >= 4) { | ||
1696 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | ||
1697 | s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1698 | m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | ||
1699 | s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1700 | m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | ||
1701 | s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1702 | m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | ||
1703 | s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1704 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | ||
1705 | srcPtr += 8; | ||
1706 | dstPtr += 4; | ||
1707 | i -= 4; | ||
1708 | } | ||
1709 | while(i--) { | ||
1710 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | ||
1711 | *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | ||
1712 | srcPtr += 2; | ||
1713 | } | ||
1714 | |||
1715 | writeSeq(0x02, 1 << 2); | ||
1716 | dstPtr = dst; | ||
1717 | srcPtr = src; | ||
1718 | i = width; | ||
1719 | j = phase; | ||
1720 | while(j--) { | ||
1721 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | ||
1722 | *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1723 | srcPtr += 2; | ||
1724 | } | ||
1725 | while(i >= 4) { | ||
1726 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | ||
1727 | s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1728 | m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | ||
1729 | s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1730 | m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | ||
1731 | s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1732 | m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | ||
1733 | s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1734 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | ||
1735 | srcPtr += 8; | ||
1736 | dstPtr += 4; | ||
1737 | i -= 4; | ||
1738 | } | ||
1739 | while(i--) { | ||
1740 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | ||
1741 | *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | ||
1742 | srcPtr += 2; | ||
1743 | } | ||
1744 | |||
1745 | writeSeq(0x02, 1 << 3); | ||
1746 | dstPtr = dst; | ||
1747 | srcPtr = src; | ||
1748 | i = width; | ||
1749 | j = phase; | ||
1750 | while(j--) { | ||
1751 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | ||
1752 | *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1753 | srcPtr += 2; | ||
1754 | } | ||
1755 | while(i >= 4) { | ||
1756 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | ||
1757 | s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1758 | m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | ||
1759 | s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1760 | m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | ||
1761 | s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1762 | m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | ||
1763 | s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1764 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | ||
1765 | srcPtr += 8; | ||
1766 | dstPtr += 4; | ||
1767 | i -= 4; | ||
1768 | } | ||
1769 | while(i--) { | ||
1770 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | ||
1771 | *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | ||
1772 | srcPtr += 2; | ||
1773 | } | ||
1774 | |||
1775 | dst += FBPitch; | ||
1776 | src += SRCPitch; | ||
1777 | } | ||
1778 | rects++; | ||
1779 | } | ||
1780 | } | ||
1781 | #endif /* VGA16_FBCON_SUPPORT */ | ||
1782 | |||
1783 | void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | ||
1784 | { | ||
1785 | struct fb_cmap cmap; | ||
1786 | |||
1787 | cmap.start = 0; | ||
1788 | cmap.len = palette_len; | ||
1789 | cmap.red = &area[0*palette_len]; | ||
1790 | cmap.green = &area[1*palette_len]; | ||
1791 | cmap.blue = &area[2*palette_len]; | ||
1792 | cmap.transp = NULL; | ||
1793 | ioctl(console_fd, FBIOGETCMAP, &cmap); | ||
1794 | } | ||
1795 | |||
1796 | void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | ||
1797 | { | ||
1798 | struct fb_cmap cmap; | ||
1799 | |||
1800 | cmap.start = 0; | ||
1801 | cmap.len = palette_len; | ||
1802 | cmap.red = &area[0*palette_len]; | ||
1803 | cmap.green = &area[1*palette_len]; | ||
1804 | cmap.blue = &area[2*palette_len]; | ||
1805 | cmap.transp = NULL; | ||
1806 | ioctl(console_fd, FBIOPUTCMAP, &cmap); | ||
1807 | } | ||
1808 | |||
1809 | static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | ||
1810 | struct fb_var_screeninfo *vinfo) | ||
1811 | { | ||
1812 | int i; | ||
1813 | |||
1814 | /* Save hardware palette, if needed */ | ||
1815 | if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | ||
1816 | saved_cmaplen = 1<<vinfo->bits_per_pixel; | ||
1817 | saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | ||
1818 | if ( saved_cmap != NULL ) { | ||
1819 | FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | ||
1820 | } | ||
1821 | } | ||
1822 | |||
1823 | /* Added support for FB_VISUAL_DIRECTCOLOR. | ||
1824 | With this mode pixel information is passed through the palette... | ||
1825 | Neat fading and gamma correction effects can be had by simply | ||
1826 | fooling around with the palette instead of changing the pixel | ||
1827 | values themselves... Very neat! | ||
1828 | |||
1829 | Adam Meyerowitz 1/19/2000 | ||
1830 | ameyerow@optonline.com | ||
1831 | */ | ||
1832 | if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | ||
1833 | __u16 new_entries[3*256]; | ||
1834 | |||
1835 | /* Save the colormap */ | ||
1836 | saved_cmaplen = 256; | ||
1837 | saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | ||
1838 | if ( saved_cmap != NULL ) { | ||
1839 | FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | ||
1840 | } | ||
1841 | |||
1842 | /* Allocate new identity colormap */ | ||
1843 | for ( i=0; i<256; ++i ) { | ||
1844 | new_entries[(0*256)+i] = | ||
1845 | new_entries[(1*256)+i] = | ||
1846 | new_entries[(2*256)+i] = (i<<8)|i; | ||
1847 | } | ||
1848 | FB_RestorePaletteFrom(this, 256, new_entries); | ||
1849 | } | ||
1850 | } | ||
1851 | |||
1852 | static void FB_RestorePalette(_THIS) | ||
1853 | { | ||
1854 | /* Restore the original palette */ | ||
1855 | if ( saved_cmap ) { | ||
1856 | FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | ||
1857 | SDL_free(saved_cmap); | ||
1858 | saved_cmap = NULL; | ||
1859 | } | ||
1860 | } | ||
1861 | |||
1862 | static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | ||
1863 | { | ||
1864 | int i; | ||
1865 | __u16 r[256]; | ||
1866 | __u16 g[256]; | ||
1867 | __u16 b[256]; | ||
1868 | struct fb_cmap cmap; | ||
1869 | |||
1870 | /* Set up the colormap */ | ||
1871 | for (i = 0; i < ncolors; i++) { | ||
1872 | r[i] = colors[i].r << 8; | ||
1873 | g[i] = colors[i].g << 8; | ||
1874 | b[i] = colors[i].b << 8; | ||
1875 | } | ||
1876 | cmap.start = firstcolor; | ||
1877 | cmap.len = ncolors; | ||
1878 | cmap.red = r; | ||
1879 | cmap.green = g; | ||
1880 | cmap.blue = b; | ||
1881 | cmap.transp = NULL; | ||
1882 | |||
1883 | if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | ||
1884 | !(this->screen->flags & SDL_HWPALETTE) ) { | ||
1885 | colors = this->screen->format->palette->colors; | ||
1886 | ncolors = this->screen->format->palette->ncolors; | ||
1887 | cmap.start = 0; | ||
1888 | cmap.len = ncolors; | ||
1889 | SDL_memset(r, 0, sizeof(r)); | ||
1890 | SDL_memset(g, 0, sizeof(g)); | ||
1891 | SDL_memset(b, 0, sizeof(b)); | ||
1892 | if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { | ||
1893 | for ( i=ncolors-1; i>=0; --i ) { | ||
1894 | colors[i].r = (r[i]>>8); | ||
1895 | colors[i].g = (g[i]>>8); | ||
1896 | colors[i].b = (b[i]>>8); | ||
1897 | } | ||
1898 | } | ||
1899 | return(0); | ||
1900 | } | ||
1901 | return(1); | ||
1902 | } | ||
1903 | |||
1904 | /* Note: If we are terminated, this could be called in the middle of | ||
1905 | another SDL video routine -- notably UpdateRects. | ||
1906 | */ | ||
1907 | static void FB_VideoQuit(_THIS) | ||
1908 | { | ||
1909 | int i, j; | ||
1910 | |||
1911 | if ( this->screen ) { | ||
1912 | /* Clear screen and tell SDL not to free the pixels */ | ||
1913 | |||
1914 | const char *dontClearPixels = SDL_getenv("SDL_FBCON_DONT_CLEAR"); | ||
1915 | |||
1916 | /* If the framebuffer is not to be cleared, make sure that we won't | ||
1917 | * display the previous frame when disabling double buffering. */ | ||
1918 | if ( dontClearPixels && flip_page == 0 ) { | ||
1919 | SDL_memcpy(flip_address[0], flip_address[1], this->screen->pitch * this->screen->h); | ||
1920 | } | ||
1921 | |||
1922 | if ( !dontClearPixels && this->screen->pixels && FB_InGraphicsMode(this) ) { | ||
1923 | #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ | ||
1924 | Uint8 *rowp = (Uint8 *)this->screen->pixels; | ||
1925 | int left = this->screen->pitch*this->screen->h; | ||
1926 | while ( left-- ) { *rowp++ = 0; } | ||
1927 | #else | ||
1928 | SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); | ||
1929 | #endif | ||
1930 | } | ||
1931 | /* This test fails when using the VGA16 shadow memory */ | ||
1932 | if ( ((char *)this->screen->pixels >= mapped_mem) && | ||
1933 | ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | ||
1934 | this->screen->pixels = NULL; | ||
1935 | } | ||
1936 | } | ||
1937 | |||
1938 | /* Clear the lock mutex */ | ||
1939 | if ( hw_lock ) { | ||
1940 | SDL_DestroyMutex(hw_lock); | ||
1941 | hw_lock = NULL; | ||
1942 | } | ||
1943 | |||
1944 | /* Clean up defined video modes */ | ||
1945 | for ( i=0; i<NUM_MODELISTS; ++i ) { | ||
1946 | if ( SDL_modelist[i] != NULL ) { | ||
1947 | for ( j=0; SDL_modelist[i][j]; ++j ) { | ||
1948 | SDL_free(SDL_modelist[i][j]); | ||
1949 | } | ||
1950 | SDL_free(SDL_modelist[i]); | ||
1951 | SDL_modelist[i] = NULL; | ||
1952 | } | ||
1953 | } | ||
1954 | |||
1955 | /* Clean up the memory bucket list */ | ||
1956 | FB_FreeHWSurfaces(this); | ||
1957 | |||
1958 | /* Close console and input file descriptors */ | ||
1959 | if ( console_fd > 0 ) { | ||
1960 | /* Unmap the video framebuffer and I/O registers */ | ||
1961 | if ( mapped_mem ) { | ||
1962 | munmap(mapped_mem, mapped_memlen); | ||
1963 | mapped_mem = NULL; | ||
1964 | } | ||
1965 | if ( mapped_io ) { | ||
1966 | munmap(mapped_io, mapped_iolen); | ||
1967 | mapped_io = NULL; | ||
1968 | } | ||
1969 | |||
1970 | /* Restore the original video mode and palette */ | ||
1971 | if ( FB_InGraphicsMode(this) ) { | ||
1972 | FB_RestorePalette(this); | ||
1973 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | ||
1974 | } | ||
1975 | |||
1976 | /* We're all done with the framebuffer */ | ||
1977 | close(console_fd); | ||
1978 | console_fd = -1; | ||
1979 | } | ||
1980 | FB_CloseMouse(this); | ||
1981 | FB_CloseKeyboard(this); | ||
1982 | } | ||