Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 941:5095c4a264aa
Date: Mon, 12 Jul 2004 14:17:47 -0500
From: Richard Smith
Subject: Re: [SDL] Disableing color depth and mode searching
> Also, I should add that a quick way to get the desired effect is to
> #define BROKEN_MODES on top of the SDL_fbvideo.c file.
>
Ah yes, I see that looks like that will do what I need. Curious as to
why this is a #define and not an enviroment variable like the other
settings.
I would think that finding cards (or chips) with broken modes would be
the norm rather than the execption.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 21 Aug 2004 11:34:24 +0000 |
| parents | b8d311d90021 |
| children | 50f4e7e4d117 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Framebuffer console based SDL video driver implementation. | |
| 29 */ | |
| 30 | |
| 31 #include <stdlib.h> | |
| 32 #include <stdio.h> | |
| 33 #include <string.h> | |
| 34 #include <fcntl.h> | |
| 35 #include <unistd.h> | |
| 36 #include <sys/ioctl.h> | |
| 37 #include <sys/mman.h> | |
| 38 #include <asm/page.h> /* For definition of PAGE_SIZE */ | |
| 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_fbvideo.h" | |
| 48 #include "SDL_fbmouse_c.h" | |
| 49 #include "SDL_fbevents_c.h" | |
| 50 #include "SDL_fb3dfx.h" | |
| 51 #include "SDL_fbmatrox.h" | |
|
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52 #include "SDL_fbriva.h" |
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53 |
| 0 | 54 |
| 55 #if defined(i386) && defined(FB_TYPE_VGA_PLANES) | |
| 56 #define VGA16_FBCON_SUPPORT | |
| 57 #ifndef FB_AUX_VGA_PLANES_VGA4 | |
| 58 #define FB_AUX_VGA_PLANES_VGA4 0 | |
| 59 #endif | |
| 60 static inline void outb (unsigned char value, unsigned short port) | |
| 61 { | |
| 62 __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); | |
| 63 } | |
| 64 #endif /* FB_TYPE_VGA_PLANES */ | |
| 65 | |
| 66 /* A list of video resolutions that we query for (sorted largest to smallest) */ | |
|
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67 static const SDL_Rect checkres[] = { |
| 0 | 68 { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 69 { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ | |
| 70 { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ | |
| 71 { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ | |
| 72 { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ | |
| 73 { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ | |
| 74 { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ | |
| 75 { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ | |
|
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76 { 0, 0, 720, 576 }, /* PAL */ |
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77 { 0, 0, 720, 480 }, /* NTSC */ |
| 0 | 78 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 79 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 80 { 0, 0, 512, 384 }, | |
| 81 { 0, 0, 320, 240 }, | |
| 82 { 0, 0, 320, 200 } | |
| 83 }; | |
|
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84 static const struct { |
| 0 | 85 int xres; |
| 86 int yres; | |
| 87 int pixclock; | |
| 88 int left; | |
| 89 int right; | |
| 90 int upper; | |
| 91 int lower; | |
| 92 int hslen; | |
| 93 int vslen; | |
| 94 int sync; | |
| 95 int vmode; | |
| 96 } vesa_timings[] = { | |
| 97 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 98 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 99 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 100 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 101 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 102 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 103 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 104 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 105 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 106 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 107 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 108 #else | |
| 109 /* You can generate these timings from your XF86Config file using | |
| 110 the 'modeline2fb' perl script included with the fbset package. | |
| 111 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 112 */ | |
| 113 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 114 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 115 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 116 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 117 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 118 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 119 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 120 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 121 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 122 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 123 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 124 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 125 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 126 #endif | |
| 127 }; | |
| 128 | |
| 129 /* Initialization/Query functions */ | |
| 130 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 131 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 132 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 133 #ifdef VGA16_FBCON_SUPPORT | |
| 134 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 135 #endif | |
| 136 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 137 static void FB_VideoQuit(_THIS); | |
| 138 | |
| 139 /* Hardware surface functions */ | |
|
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140 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 141 static void FB_FreeHWSurfaces(_THIS); |
| 142 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 143 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 144 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 145 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 146 static void FB_WaitVBL(_THIS); | |
|
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147 static void FB_WaitIdle(_THIS); |
| 0 | 148 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 149 | |
| 150 /* Internal palette functions */ | |
| 151 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 152 struct fb_var_screeninfo *vinfo); | |
| 153 static void FB_RestorePalette(_THIS); | |
| 154 | |
| 155 /* FB driver bootstrap functions */ | |
| 156 | |
| 157 static int FB_Available(void) | |
| 158 { | |
| 159 int console; | |
| 160 const char *SDL_fbdev; | |
| 161 | |
| 162 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 163 if ( SDL_fbdev == NULL ) { | |
| 164 SDL_fbdev = "/dev/fb0"; | |
| 165 } | |
| 166 console = open(SDL_fbdev, O_RDWR, 0); | |
| 167 if ( console >= 0 ) { | |
| 168 close(console); | |
| 169 } | |
| 170 return(console >= 0); | |
| 171 } | |
| 172 | |
| 173 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 174 { | |
| 175 free(device->hidden); | |
| 176 free(device); | |
| 177 } | |
| 178 | |
| 179 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 180 { | |
| 181 SDL_VideoDevice *this; | |
| 182 | |
| 183 /* Initialize all variables that we clean on shutdown */ | |
| 184 this = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); | |
| 185 if ( this ) { | |
| 186 memset(this, 0, (sizeof *this)); | |
| 187 this->hidden = (struct SDL_PrivateVideoData *) | |
| 188 malloc((sizeof *this->hidden)); | |
| 189 } | |
| 190 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 191 SDL_OutOfMemory(); | |
| 192 if ( this ) { | |
| 193 free(this); | |
| 194 } | |
| 195 return(0); | |
| 196 } | |
| 197 memset(this->hidden, 0, (sizeof *this->hidden)); | |
| 198 wait_vbl = FB_WaitVBL; | |
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199 wait_idle = FB_WaitIdle; |
| 0 | 200 mouse_fd = -1; |
| 201 keyboard_fd = -1; | |
| 202 | |
| 203 /* Set the function pointers */ | |
| 204 this->VideoInit = FB_VideoInit; | |
| 205 this->ListModes = FB_ListModes; | |
| 206 this->SetVideoMode = FB_SetVideoMode; | |
| 207 this->SetColors = FB_SetColors; | |
| 208 this->UpdateRects = NULL; | |
| 209 this->VideoQuit = FB_VideoQuit; | |
| 210 this->AllocHWSurface = FB_AllocHWSurface; | |
| 211 this->CheckHWBlit = NULL; | |
| 212 this->FillHWRect = NULL; | |
| 213 this->SetHWColorKey = NULL; | |
| 214 this->SetHWAlpha = NULL; | |
| 215 this->LockHWSurface = FB_LockHWSurface; | |
| 216 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 217 this->FlipHWSurface = FB_FlipHWSurface; | |
| 218 this->FreeHWSurface = FB_FreeHWSurface; | |
| 219 this->SetCaption = NULL; | |
| 220 this->SetIcon = NULL; | |
| 221 this->IconifyWindow = NULL; | |
| 222 this->GrabInput = NULL; | |
| 223 this->GetWMInfo = NULL; | |
| 224 this->InitOSKeymap = FB_InitOSKeymap; | |
| 225 this->PumpEvents = FB_PumpEvents; | |
| 226 | |
| 227 this->free = FB_DeleteDevice; | |
| 228 | |
| 229 return this; | |
| 230 } | |
| 231 | |
| 232 VideoBootStrap FBCON_bootstrap = { | |
| 233 "fbcon", "Linux Framebuffer Console", | |
| 234 FB_Available, FB_CreateDevice | |
| 235 }; | |
| 236 | |
| 237 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, | |
| 238 int index, unsigned int *w, unsigned int *h) | |
| 239 { | |
| 240 int mode_okay; | |
| 241 | |
| 242 mode_okay = 0; | |
| 243 vinfo->bits_per_pixel = (index+1)*8; | |
| 244 vinfo->xres = *w; | |
| 245 vinfo->xres_virtual = *w; | |
| 246 vinfo->yres = *h; | |
| 247 vinfo->yres_virtual = *h; | |
| 248 vinfo->activate = FB_ACTIVATE_TEST; | |
| 249 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 250 #ifdef FBCON_DEBUG | |
| 251 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); | |
| 252 #endif | |
| 253 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 254 *w = vinfo->xres; | |
| 255 *h = vinfo->yres; | |
| 256 mode_okay = 1; | |
| 257 } | |
| 258 } | |
| 259 return mode_okay; | |
| 260 } | |
| 261 | |
| 262 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h) | |
| 263 { | |
| 264 SDL_Rect *mode; | |
| 265 int i; | |
| 266 int next_mode; | |
| 267 | |
| 268 /* Check to see if we already have this mode */ | |
| 269 if ( SDL_nummodes[index] > 0 ) { | |
| 270 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 271 if ( (mode->w == w) && (mode->h == h) ) { | |
| 272 #ifdef FBCON_DEBUG | |
| 273 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 274 #endif | |
| 275 return(0); | |
| 276 } | |
| 277 } | |
| 278 | |
| 279 /* Only allow a mode if we have a valid timing for it */ | |
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280 next_mode = -1; |
| 0 | 281 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
| 282 if ( (w == vesa_timings[i].xres) && | |
| 283 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { | |
| 284 next_mode = i; | |
| 285 break; | |
| 286 } | |
| 287 } | |
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288 if ( next_mode == -1 ) { |
| 0 | 289 #ifdef FBCON_DEBUG |
| 290 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); | |
| 291 #endif | |
| 292 return(0); | |
| 293 } | |
| 294 | |
| 295 /* Set up the new video mode rectangle */ | |
| 296 mode = (SDL_Rect *)malloc(sizeof *mode); | |
| 297 if ( mode == NULL ) { | |
| 298 SDL_OutOfMemory(); | |
| 299 return(-1); | |
| 300 } | |
| 301 mode->x = 0; | |
| 302 mode->y = 0; | |
| 303 mode->w = w; | |
| 304 mode->h = h; | |
| 305 #ifdef FBCON_DEBUG | |
| 306 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 307 #endif | |
| 308 | |
| 309 /* Allocate the new list of modes, and fill in the new mode */ | |
| 310 next_mode = SDL_nummodes[index]; | |
| 311 SDL_modelist[index] = (SDL_Rect **) | |
| 312 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | |
| 313 if ( SDL_modelist[index] == NULL ) { | |
| 314 SDL_OutOfMemory(); | |
| 315 SDL_nummodes[index] = 0; | |
| 316 free(mode); | |
| 317 return(-1); | |
| 318 } | |
| 319 SDL_modelist[index][next_mode] = mode; | |
| 320 SDL_modelist[index][next_mode+1] = NULL; | |
| 321 SDL_nummodes[index]++; | |
| 322 | |
| 323 return(0); | |
| 324 } | |
| 325 | |
| 326 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 327 { | |
| 328 struct fb_fix_screeninfo finfo; | |
| 329 struct fb_var_screeninfo vinfo; | |
| 330 int i, j; | |
| 331 int current_index; | |
| 332 unsigned int current_w; | |
| 333 unsigned int current_h; | |
| 334 const char *SDL_fbdev; | |
| 335 | |
| 336 /* Initialize the library */ | |
| 337 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 338 if ( SDL_fbdev == NULL ) { | |
| 339 SDL_fbdev = "/dev/fb0"; | |
| 340 } | |
| 341 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 342 if ( console_fd < 0 ) { | |
| 343 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 344 return(-1); | |
| 345 } | |
| 346 | |
| 347 #ifndef DISABLE_THREADS | |
| 348 /* Create the hardware surface lock mutex */ | |
| 349 hw_lock = SDL_CreateMutex(); | |
| 350 if ( hw_lock == NULL ) { | |
| 351 SDL_SetError("Unable to create lock mutex"); | |
| 352 FB_VideoQuit(this); | |
| 353 return(-1); | |
| 354 } | |
| 355 #endif | |
| 356 | |
| 357 /* Get the type of video hardware */ | |
| 358 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 359 SDL_SetError("Couldn't get console hardware info"); | |
| 360 FB_VideoQuit(this); | |
| 361 return(-1); | |
| 362 } | |
| 363 switch (finfo.type) { | |
| 364 case FB_TYPE_PACKED_PIXELS: | |
| 365 /* Supported, no worries.. */ | |
| 366 break; | |
| 367 #ifdef VGA16_FBCON_SUPPORT | |
| 368 case FB_TYPE_VGA_PLANES: | |
| 369 /* VGA16 is supported, but that's it */ | |
| 370 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 371 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 372 SDL_SetError("No I/O port permissions"); | |
| 373 FB_VideoQuit(this); | |
| 374 return(-1); | |
| 375 } | |
| 376 this->SetVideoMode = FB_SetVGA16Mode; | |
| 377 break; | |
| 378 } | |
| 379 /* Fall through to unsupported case */ | |
| 380 #endif /* VGA16_FBCON_SUPPORT */ | |
| 381 default: | |
| 382 SDL_SetError("Unsupported console hardware"); | |
| 383 FB_VideoQuit(this); | |
| 384 return(-1); | |
| 385 } | |
| 386 switch (finfo.visual) { | |
| 387 case FB_VISUAL_TRUECOLOR: | |
| 388 case FB_VISUAL_PSEUDOCOLOR: | |
| 389 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 390 case FB_VISUAL_DIRECTCOLOR: | |
| 391 break; | |
| 392 default: | |
| 393 SDL_SetError("Unsupported console hardware"); | |
| 394 FB_VideoQuit(this); | |
| 395 return(-1); | |
| 396 } | |
| 397 | |
| 398 /* Check if the user wants to disable hardware acceleration */ | |
| 399 { const char *fb_accel; | |
| 400 fb_accel = getenv("SDL_FBACCEL"); | |
| 401 if ( fb_accel ) { | |
| 402 finfo.accel = atoi(fb_accel); | |
| 403 } | |
| 404 } | |
| 405 | |
| 406 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 407 mapped_offset = (((long)finfo.smem_start) - | |
| 408 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 409 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 410 mapped_mem = mmap(NULL, mapped_memlen, | |
| 411 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | |
| 412 if ( mapped_mem == (char *)-1 ) { | |
| 413 SDL_SetError("Unable to memory map the video hardware"); | |
| 414 mapped_mem = NULL; | |
| 415 FB_VideoQuit(this); | |
| 416 return(-1); | |
| 417 } | |
| 418 | |
| 419 /* Determine the current screen depth */ | |
| 420 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 421 SDL_SetError("Couldn't get console pixel format"); | |
| 422 FB_VideoQuit(this); | |
| 423 return(-1); | |
| 424 } | |
| 425 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 426 if ( vformat->BitsPerPixel < 8 ) { | |
| 427 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 428 vformat->BitsPerPixel = 8; | |
| 429 } | |
| 430 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 431 vformat->Rmask <<= 1; | |
| 432 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 433 } | |
| 434 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 435 vformat->Gmask <<= 1; | |
| 436 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 437 } | |
| 438 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 439 vformat->Bmask <<= 1; | |
| 440 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 441 } | |
| 442 saved_vinfo = vinfo; | |
| 443 | |
| 444 /* Save hardware palette, if needed */ | |
| 445 FB_SavePalette(this, &finfo, &vinfo); | |
| 446 | |
| 447 /* If the I/O registers are available, memory map them so we | |
| 448 can take advantage of any supported hardware acceleration. | |
| 449 */ | |
| 450 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 451 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 452 if ( finfo.accel && finfo.mmio_len ) { | |
| 453 mapped_iolen = finfo.mmio_len; | |
| 454 mapped_io = mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | |
| 455 MAP_SHARED, console_fd, mapped_memlen); | |
| 456 if ( mapped_io == (char *)-1 ) { | |
| 457 /* Hmm, failed to memory map I/O registers */ | |
| 458 mapped_io = NULL; | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 /* Query for the list of available video modes */ | |
| 463 current_w = vinfo.xres; | |
| 464 current_h = vinfo.yres; | |
| 465 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
|
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466 if ( getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
|
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467 FB_AddMode(this, current_index, current_w, current_h); |
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468 } else { |
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469 for ( i=0; i<NUM_MODELISTS; ++i ) { |
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470 SDL_nummodes[i] = 0; |
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471 SDL_modelist[i] = NULL; |
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472 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
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473 unsigned int w, h; |
| 0 | 474 |
|
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475 /* See if we are querying for the current mode */ |
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476 w = checkres[j].w; |
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477 h = checkres[j].h; |
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478 if ( i == current_index ) { |
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479 if ( (current_w > w) || (current_h > h) ) { |
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480 /* Only check once */ |
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481 FB_AddMode(this, i, current_w, current_h); |
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482 current_index = -1; |
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483 } |
| 0 | 484 } |
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485 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
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486 FB_AddMode(this, i, w, h); |
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487 } |
| 0 | 488 } |
| 489 } | |
| 490 } | |
| 491 | |
| 492 /* Fill in our hardware acceleration capabilities */ | |
| 493 this->info.wm_available = 0; | |
| 494 this->info.hw_available = 1; | |
| 495 this->info.video_mem = finfo.smem_len/1024; | |
| 496 if ( mapped_io ) { | |
| 497 switch (finfo.accel) { | |
| 498 case FB_ACCEL_MATROX_MGA2064W: | |
| 499 case FB_ACCEL_MATROX_MGA1064SG: | |
| 500 case FB_ACCEL_MATROX_MGA2164W: | |
| 501 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 502 case FB_ACCEL_MATROX_MGAG100: | |
| 503 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 504 case FB_ACCEL_MATROX_MGAG400: | |
| 505 #ifdef FBACCEL_DEBUG | |
| 506 printf("Matrox hardware accelerator!\n"); | |
| 507 #endif | |
| 508 FB_MatroxAccel(this, finfo.accel); | |
| 509 break; | |
| 510 case FB_ACCEL_3DFX_BANSHEE: | |
| 511 #ifdef FBACCEL_DEBUG | |
| 512 printf("3DFX hardware accelerator!\n"); | |
| 513 #endif | |
| 514 FB_3DfxAccel(this, finfo.accel); | |
| 515 break; | |
|
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516 case FB_ACCEL_NV3: |
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517 case FB_ACCEL_NV4: |
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518 #ifdef FBACCEL_DEBUG |
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519 printf("NVidia hardware accelerator!\n"); |
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520 #endif |
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521 FB_RivaAccel(this, finfo.accel); |
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522 break; |
| 0 | 523 default: |
| 524 #ifdef FBACCEL_DEBUG | |
| 525 printf("Unknown hardware accelerator.\n"); | |
| 526 #endif | |
| 527 break; | |
| 528 } | |
| 529 } | |
| 530 | |
| 531 /* Enable mouse and keyboard support */ | |
| 532 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 533 FB_VideoQuit(this); | |
| 534 return(-1); | |
| 535 } | |
| 536 if ( FB_OpenMouse(this) < 0 ) { | |
| 537 const char *sdl_nomouse; | |
| 538 | |
| 539 sdl_nomouse = getenv("SDL_NOMOUSE"); | |
| 540 if ( ! sdl_nomouse ) { | |
| 541 SDL_SetError("Unable to open mouse"); | |
| 542 FB_VideoQuit(this); | |
| 543 return(-1); | |
| 544 } | |
| 545 } | |
| 546 | |
| 547 /* We're done! */ | |
| 548 return(0); | |
| 549 } | |
| 550 | |
| 551 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 552 { | |
| 553 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 554 } | |
| 555 | |
| 556 /* Various screen update functions available */ | |
| 557 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 558 #ifdef VGA16_FBCON_SUPPORT | |
| 559 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 560 #endif | |
| 561 | |
| 562 #ifdef FBCON_DEBUG | |
| 563 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 564 { | |
| 565 fprintf(stderr, "Printing vinfo:\n"); | |
| 566 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 567 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 568 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 569 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 570 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 571 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 572 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 573 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 574 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 575 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 576 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 577 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 578 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 579 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 580 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 581 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 582 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 583 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 584 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 585 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 586 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 587 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 588 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 589 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 590 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 591 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 592 } | |
| 593 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 594 { | |
| 595 fprintf(stderr, "Printing finfo:\n"); | |
| 596 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 597 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 598 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 599 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 600 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 601 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 602 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 603 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 604 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 605 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 606 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 607 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 608 } | |
| 609 #endif | |
| 610 | |
| 611 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 612 { | |
| 613 int matched; | |
| 614 FILE *fbmodes; | |
| 615 | |
| 616 matched = 0; | |
| 617 fbmodes = fopen("/etc/fb.modes", "r"); | |
| 618 if ( fbmodes ) { | |
| 619 /* FIXME: Parse the mode definition file */ | |
| 620 fclose(fbmodes); | |
| 621 } | |
| 622 return(matched); | |
| 623 } | |
| 624 | |
| 625 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 626 { | |
| 627 int matched; | |
| 628 int i; | |
| 629 | |
| 630 /* Check for VESA timings */ | |
| 631 matched = 0; | |
| 632 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 633 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 634 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 635 #ifdef FBCON_DEBUG | |
| 636 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 637 vinfo->xres, vinfo->yres); | |
| 638 #endif | |
| 639 if ( vesa_timings[i].pixclock ) { | |
| 640 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 641 } | |
| 642 vinfo->left_margin = vesa_timings[i].left; | |
| 643 vinfo->right_margin = vesa_timings[i].right; | |
| 644 vinfo->upper_margin = vesa_timings[i].upper; | |
| 645 vinfo->lower_margin = vesa_timings[i].lower; | |
| 646 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 647 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 648 vinfo->sync = vesa_timings[i].sync; | |
| 649 vinfo->vmode = vesa_timings[i].vmode; | |
| 650 matched = 1; | |
| 651 break; | |
| 652 } | |
| 653 } | |
| 654 return(matched); | |
| 655 } | |
| 656 | |
| 657 #ifdef VGA16_FBCON_SUPPORT | |
| 658 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 659 int width, int height, int bpp, Uint32 flags) | |
| 660 { | |
| 661 struct fb_fix_screeninfo finfo; | |
| 662 struct fb_var_screeninfo vinfo; | |
| 663 | |
| 664 /* Set the terminal into graphics mode */ | |
| 665 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 666 return(NULL); | |
| 667 } | |
| 668 | |
| 669 /* Restore the original palette */ | |
| 670 FB_RestorePalette(this); | |
| 671 | |
| 672 /* Set the video mode and get the final screen format */ | |
| 673 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 674 SDL_SetError("Couldn't get console screen info"); | |
| 675 return(NULL); | |
| 676 } | |
| 677 cache_vinfo = vinfo; | |
| 678 #ifdef FBCON_DEBUG | |
| 679 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 680 print_vinfo(&vinfo); | |
| 681 #endif | |
| 682 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 683 return(NULL); | |
| 684 } | |
|
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685 current->format->palette->ncolors = 16; |
| 0 | 686 |
| 687 /* Get the fixed information about the console hardware. | |
| 688 This is necessary since finfo.line_length changes. | |
| 689 */ | |
| 690 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 691 SDL_SetError("Couldn't get console hardware info"); | |
| 692 return(NULL); | |
| 693 } | |
| 694 #ifdef FBCON_DEBUG | |
| 695 fprintf(stderr, "Printing actual finfo:\n"); | |
| 696 print_finfo(&finfo); | |
| 697 #endif | |
| 698 | |
| 699 /* Save hardware palette, if needed */ | |
| 700 FB_SavePalette(this, &finfo, &vinfo); | |
| 701 | |
| 702 /* Set up the new mode framebuffer */ | |
| 703 current->flags = SDL_FULLSCREEN; | |
| 704 current->w = vinfo.xres; | |
| 705 current->h = vinfo.yres; | |
| 706 current->pitch = current->w; | |
| 707 current->pixels = malloc(current->h*current->pitch); | |
| 708 | |
| 709 /* Set the update rectangle function */ | |
| 710 this->UpdateRects = FB_VGA16Update; | |
| 711 | |
| 712 /* We're done */ | |
| 713 return(current); | |
| 714 } | |
| 715 #endif /* VGA16_FBCON_SUPPORT */ | |
| 716 | |
| 717 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 718 int width, int height, int bpp, Uint32 flags) | |
| 719 { | |
| 720 struct fb_fix_screeninfo finfo; | |
| 721 struct fb_var_screeninfo vinfo; | |
| 722 int i; | |
| 723 Uint32 Rmask; | |
| 724 Uint32 Gmask; | |
| 725 Uint32 Bmask; | |
| 726 char *surfaces_mem; | |
| 727 int surfaces_len; | |
| 728 | |
| 729 /* Set the terminal into graphics mode */ | |
| 730 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 731 return(NULL); | |
| 732 } | |
| 733 | |
| 734 /* Restore the original palette */ | |
| 735 FB_RestorePalette(this); | |
| 736 | |
| 737 /* Set the video mode and get the final screen format */ | |
| 738 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 739 SDL_SetError("Couldn't get console screen info"); | |
| 740 return(NULL); | |
| 741 } | |
| 742 #ifdef FBCON_DEBUG | |
| 743 fprintf(stderr, "Printing original vinfo:\n"); | |
| 744 print_vinfo(&vinfo); | |
| 745 #endif | |
| 746 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 747 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 748 vinfo.activate = FB_ACTIVATE_NOW; | |
| 749 vinfo.accel_flags = 0; | |
| 750 vinfo.bits_per_pixel = bpp; | |
| 751 vinfo.xres = width; | |
| 752 vinfo.xres_virtual = width; | |
| 753 vinfo.yres = height; | |
| 754 if ( flags & SDL_DOUBLEBUF ) { | |
| 755 vinfo.yres_virtual = height*2; | |
| 756 } else { | |
| 757 vinfo.yres_virtual = height; | |
| 758 } | |
| 759 vinfo.xoffset = 0; | |
| 760 vinfo.yoffset = 0; | |
| 761 vinfo.red.length = vinfo.red.offset = 0; | |
| 762 vinfo.green.length = vinfo.green.offset = 0; | |
| 763 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 764 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 765 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 766 choose_vesa_mode(&vinfo); | |
| 767 } | |
| 768 #ifdef FBCON_DEBUG | |
| 769 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 770 print_vinfo(&vinfo); | |
| 771 #endif | |
| 772 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 773 vinfo.yres_virtual = height; | |
| 774 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 775 SDL_SetError("Couldn't set console screen info"); | |
| 776 return(NULL); | |
| 777 } | |
| 778 } | |
|
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779 } else { |
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780 int maxheight; |
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781 |
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782 /* Figure out how much video memory is available */ |
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783 if ( flags & SDL_DOUBLEBUF ) { |
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784 maxheight = height*2; |
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785 } else { |
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786 maxheight = height; |
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787 } |
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788 if ( vinfo.yres_virtual > maxheight ) { |
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789 vinfo.yres_virtual = maxheight; |
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790 } |
| 0 | 791 } |
| 792 cache_vinfo = vinfo; | |
| 793 #ifdef FBCON_DEBUG | |
| 794 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 795 print_vinfo(&vinfo); | |
| 796 #endif | |
| 797 Rmask = 0; | |
| 798 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 799 Rmask <<= 1; | |
| 800 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 801 } | |
| 802 Gmask = 0; | |
| 803 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 804 Gmask <<= 1; | |
| 805 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 806 } | |
| 807 Bmask = 0; | |
| 808 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 809 Bmask <<= 1; | |
| 810 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 811 } | |
| 812 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 813 Rmask, Gmask, Bmask, 0) ) { | |
| 814 return(NULL); | |
| 815 } | |
| 816 | |
| 817 /* Get the fixed information about the console hardware. | |
| 818 This is necessary since finfo.line_length changes. | |
| 819 */ | |
| 820 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 821 SDL_SetError("Couldn't get console hardware info"); | |
| 822 return(NULL); | |
| 823 } | |
| 824 | |
| 825 /* Save hardware palette, if needed */ | |
| 826 FB_SavePalette(this, &finfo, &vinfo); | |
| 827 | |
| 828 /* Set up the new mode framebuffer */ | |
| 829 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 830 current->w = vinfo.xres; | |
| 831 current->h = vinfo.yres; | |
| 832 current->pitch = finfo.line_length; | |
| 833 current->pixels = mapped_mem+mapped_offset; | |
| 834 | |
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835 /* Set up the information for hardware surfaces */ |
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836 surfaces_mem = (char *)current->pixels + |
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837 vinfo.yres_virtual*current->pitch; |
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838 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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839 FB_FreeHWSurfaces(this); |
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840 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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841 |
| 0 | 842 /* Let the application know we have a hardware palette */ |
| 843 switch (finfo.visual) { | |
| 844 case FB_VISUAL_PSEUDOCOLOR: | |
| 845 current->flags |= SDL_HWPALETTE; | |
| 846 break; | |
| 847 default: | |
| 848 break; | |
| 849 } | |
| 850 | |
| 851 /* Update for double-buffering, if we can */ | |
| 852 if ( flags & SDL_DOUBLEBUF ) { | |
| 853 if ( vinfo.yres_virtual == (height*2) ) { | |
| 854 current->flags |= SDL_DOUBLEBUF; | |
| 855 flip_page = 0; | |
| 856 flip_address[0] = (char *)current->pixels; | |
| 857 flip_address[1] = (char *)current->pixels+ | |
| 858 current->h*current->pitch; | |
|
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859 this->screen = current; |
| 0 | 860 FB_FlipHWSurface(this, current); |
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861 this->screen = NULL; |
| 0 | 862 } |
| 863 } | |
| 864 | |
| 865 /* Set the update rectangle function */ | |
| 866 this->UpdateRects = FB_DirectUpdate; | |
| 867 | |
| 868 /* We're done */ | |
| 869 return(current); | |
| 870 } | |
| 871 | |
| 872 #ifdef FBCON_DEBUG | |
| 873 void FB_DumpHWSurfaces(_THIS) | |
| 874 { | |
| 875 vidmem_bucket *bucket; | |
| 876 | |
| 877 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 878 printf("\n"); | |
| 879 printf(" Base Size\n"); | |
| 880 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 881 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 882 if ( bucket->prev ) { | |
| 883 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 884 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 885 } | |
| 886 } else { | |
| 887 if ( bucket != &surfaces ) { | |
| 888 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 889 } | |
| 890 } | |
| 891 if ( bucket->next ) { | |
| 892 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 893 printf("Warning, corrupt bucket list! (next)\n"); | |
| 894 } | |
| 895 } | |
| 896 } | |
| 897 printf("\n"); | |
| 898 } | |
| 899 #endif | |
| 900 | |
|
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901 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 902 { |
|
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903 vidmem_bucket *bucket; |
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904 |
| 0 | 905 surfaces_memtotal = size; |
| 906 surfaces_memleft = size; | |
|
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907 |
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908 if ( surfaces_memleft > 0 ) { |
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909 bucket = (vidmem_bucket *)malloc(sizeof(*bucket)); |
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910 if ( bucket == NULL ) { |
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911 SDL_OutOfMemory(); |
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912 return(-1); |
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913 } |
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914 bucket->prev = &surfaces; |
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915 bucket->used = 0; |
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916 bucket->dirty = 0; |
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917 bucket->base = base; |
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918 bucket->size = size; |
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919 bucket->next = NULL; |
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920 } else { |
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921 bucket = NULL; |
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922 } |
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923 |
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924 surfaces.prev = NULL; |
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925 surfaces.used = 1; |
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926 surfaces.dirty = 0; |
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927 surfaces.base = screen->pixels; |
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928 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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929 surfaces.next = bucket; |
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930 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 931 return(0); |
| 932 } | |
| 933 static void FB_FreeHWSurfaces(_THIS) | |
| 934 { | |
| 935 vidmem_bucket *bucket, *freeable; | |
| 936 | |
| 937 bucket = surfaces.next; | |
| 938 while ( bucket ) { | |
| 939 freeable = bucket; | |
| 940 bucket = bucket->next; | |
| 941 free(freeable); | |
| 942 } | |
| 943 surfaces.next = NULL; | |
| 944 } | |
| 945 | |
| 946 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 947 { | |
| 948 vidmem_bucket *bucket; | |
| 949 int size; | |
| 950 int extra; | |
| 951 | |
| 952 /* Temporarily, we only allow surfaces the same width as display. | |
| 953 Some blitters require the pitch between two hardware surfaces | |
| 954 to be the same. Others have interesting alignment restrictions. | |
| 955 Until someone who knows these details looks at the code... | |
| 956 */ | |
| 957 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 958 SDL_SetError("Surface requested wider than screen"); | |
| 959 return(-1); | |
| 960 } | |
| 961 surface->pitch = SDL_VideoSurface->pitch; | |
| 962 size = surface->h * surface->pitch; | |
| 963 #ifdef FBCON_DEBUG | |
| 964 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 965 #endif | |
| 966 | |
| 967 /* Quick check for available mem */ | |
| 968 if ( size > surfaces_memleft ) { | |
| 969 SDL_SetError("Not enough video memory"); | |
| 970 return(-1); | |
| 971 } | |
| 972 | |
| 973 /* Search for an empty bucket big enough */ | |
| 974 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 975 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 976 break; | |
| 977 } | |
| 978 } | |
| 979 if ( bucket == NULL ) { | |
| 980 SDL_SetError("Video memory too fragmented"); | |
| 981 return(-1); | |
| 982 } | |
| 983 | |
| 984 /* Create a new bucket for left-over memory */ | |
| 985 extra = (bucket->size - size); | |
| 986 if ( extra ) { | |
| 987 vidmem_bucket *newbucket; | |
| 988 | |
| 989 #ifdef FBCON_DEBUG | |
| 990 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 991 #endif | |
| 992 newbucket = (vidmem_bucket *)malloc(sizeof(*newbucket)); | |
| 993 if ( newbucket == NULL ) { | |
| 994 SDL_OutOfMemory(); | |
| 995 return(-1); | |
| 996 } | |
| 997 newbucket->prev = bucket; | |
| 998 newbucket->used = 0; | |
| 999 newbucket->base = bucket->base+size; | |
| 1000 newbucket->size = extra; | |
| 1001 newbucket->next = bucket->next; | |
| 1002 if ( bucket->next ) { | |
| 1003 bucket->next->prev = newbucket; | |
| 1004 } | |
| 1005 bucket->next = newbucket; | |
| 1006 } | |
| 1007 | |
| 1008 /* Set the current bucket values and return it! */ | |
| 1009 bucket->used = 1; | |
| 1010 bucket->size = size; | |
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1011 bucket->dirty = 0; |
| 0 | 1012 #ifdef FBCON_DEBUG |
| 1013 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1014 #endif | |
| 1015 surfaces_memleft -= size; | |
| 1016 surface->flags |= SDL_HWSURFACE; | |
| 1017 surface->pixels = bucket->base; | |
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1018 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1019 return(0); |
| 1020 } | |
| 1021 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1022 { | |
| 1023 vidmem_bucket *bucket, *freeable; | |
| 1024 | |
| 1025 /* Look for the bucket in the current list */ | |
| 1026 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1027 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1028 break; |
| 1029 } | |
| 1030 } | |
|
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1031 if ( bucket && bucket->used ) { |
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1032 /* Add the memory back to the total */ |
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1033 #ifdef DGA_DEBUG |
| 0 | 1034 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1035 #endif | |
|
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1036 surfaces_memleft += bucket->size; |
| 0 | 1037 |
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1038 /* Can we merge the space with surrounding buckets? */ |
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1039 bucket->used = 0; |
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1040 if ( bucket->next && ! bucket->next->used ) { |
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1041 #ifdef DGA_DEBUG |
| 0 | 1042 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1043 #endif | |
|
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1044 freeable = bucket->next; |
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1045 bucket->size += bucket->next->size; |
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1046 bucket->next = bucket->next->next; |
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1047 if ( bucket->next ) { |
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1048 bucket->next->prev = bucket; |
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1049 } |
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1050 free(freeable); |
| 0 | 1051 } |
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1052 if ( bucket->prev && ! bucket->prev->used ) { |
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1053 #ifdef DGA_DEBUG |
| 0 | 1054 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1055 #endif | |
|
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1056 freeable = bucket; |
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1057 bucket->prev->size += bucket->size; |
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1058 bucket->prev->next = bucket->next; |
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1059 if ( bucket->next ) { |
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1060 bucket->next->prev = bucket->prev; |
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1061 } |
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1062 free(freeable); |
| 0 | 1063 } |
| 1064 } | |
| 1065 surface->pixels = NULL; | |
|
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1066 surface->hwdata = NULL; |
| 0 | 1067 } |
| 1068 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1069 { | |
|
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1070 if ( surface == this->screen ) { |
| 0 | 1071 SDL_mutexP(hw_lock); |
|
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1072 if ( FB_IsSurfaceBusy(surface) ) { |
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1073 FB_WaitBusySurfaces(this); |
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1074 } |
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1075 } else { |
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1076 if ( FB_IsSurfaceBusy(surface) ) { |
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1077 FB_WaitBusySurfaces(this); |
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1078 } |
| 0 | 1079 } |
| 1080 return(0); | |
| 1081 } | |
| 1082 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1083 { | |
|
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1084 if ( surface == this->screen ) { |
| 0 | 1085 SDL_mutexV(hw_lock); |
| 1086 } | |
| 1087 } | |
| 1088 | |
| 1089 static void FB_WaitVBL(_THIS) | |
| 1090 { | |
| 1091 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1092 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1093 #endif | |
| 1094 return; | |
| 1095 } | |
| 1096 | |
|
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1097 static void FB_WaitIdle(_THIS) |
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1098 { |
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1099 return; |
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1100 } |
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1101 |
| 0 | 1102 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1103 { | |
| 1104 /* Wait for vertical retrace and then flip display */ | |
| 1105 cache_vinfo.yoffset = flip_page*surface->h; | |
|
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1106 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1107 FB_WaitBusySurfaces(this); |
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1108 } |
| 0 | 1109 wait_vbl(this); |
| 1110 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1111 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1112 return(-1); | |
| 1113 } | |
| 1114 flip_page = !flip_page; | |
| 1115 | |
| 1116 surface->pixels = flip_address[flip_page]; | |
| 1117 return(0); | |
| 1118 } | |
| 1119 | |
| 1120 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1121 { | |
| 1122 /* The application is already updating the visible video memory */ | |
| 1123 return; | |
| 1124 } | |
| 1125 | |
| 1126 #ifdef VGA16_FBCON_SUPPORT | |
| 1127 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1128 #define writeGr(index, value) \ | |
| 1129 outb(index, 0x3CE); \ | |
| 1130 outb(value, 0x3CF); | |
| 1131 #define writeSeq(index, value) \ | |
| 1132 outb(index, 0x3C4); \ | |
| 1133 outb(value, 0x3C5); | |
| 1134 | |
| 1135 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1136 { | |
| 1137 SDL_Surface *screen; | |
| 1138 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1139 register Uint32 m; | |
| 1140 Uint8 s1, s2, s3, s4; | |
| 1141 Uint32 *src, *srcPtr; | |
| 1142 Uint8 *dst, *dstPtr; | |
| 1143 | |
| 1144 screen = this->screen; | |
| 1145 FBPitch = screen->w >> 3; | |
| 1146 SRCPitch = screen->pitch >> 2; | |
| 1147 | |
| 1148 writeGr(0x03, 0x00); | |
| 1149 writeGr(0x05, 0x00); | |
| 1150 writeGr(0x01, 0x00); | |
| 1151 writeGr(0x08, 0xFF); | |
| 1152 | |
| 1153 while(numrects--) { | |
| 1154 left = rects->x & ~7; | |
| 1155 width = (rects->w + 7) >> 3; | |
| 1156 height = rects->h; | |
| 1157 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1158 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1159 | |
| 1160 if((phase = (long)dst & 3L)) { | |
| 1161 phase = 4 - phase; | |
| 1162 if(phase > width) phase = width; | |
| 1163 width -= phase; | |
| 1164 } | |
| 1165 | |
| 1166 while(height--) { | |
| 1167 writeSeq(0x02, 1 << 0); | |
| 1168 dstPtr = dst; | |
| 1169 srcPtr = src; | |
| 1170 i = width; | |
| 1171 j = phase; | |
| 1172 while(j--) { | |
| 1173 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1174 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1175 srcPtr += 2; | |
| 1176 } | |
| 1177 while(i >= 4) { | |
| 1178 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1179 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1180 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1181 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1182 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1183 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1184 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1185 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1186 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1187 srcPtr += 8; | |
| 1188 dstPtr += 4; | |
| 1189 i -= 4; | |
| 1190 } | |
| 1191 while(i--) { | |
| 1192 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1193 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1194 srcPtr += 2; | |
| 1195 } | |
| 1196 | |
| 1197 writeSeq(0x02, 1 << 1); | |
| 1198 dstPtr = dst; | |
| 1199 srcPtr = src; | |
| 1200 i = width; | |
| 1201 j = phase; | |
| 1202 while(j--) { | |
| 1203 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1204 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1205 srcPtr += 2; | |
| 1206 } | |
| 1207 while(i >= 4) { | |
| 1208 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1209 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1210 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1211 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1212 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1213 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1214 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1215 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1216 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1217 srcPtr += 8; | |
| 1218 dstPtr += 4; | |
| 1219 i -= 4; | |
| 1220 } | |
| 1221 while(i--) { | |
| 1222 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1223 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1224 srcPtr += 2; | |
| 1225 } | |
| 1226 | |
| 1227 writeSeq(0x02, 1 << 2); | |
| 1228 dstPtr = dst; | |
| 1229 srcPtr = src; | |
| 1230 i = width; | |
| 1231 j = phase; | |
| 1232 while(j--) { | |
| 1233 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1234 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1235 srcPtr += 2; | |
| 1236 } | |
| 1237 while(i >= 4) { | |
| 1238 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1239 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1240 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1241 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1242 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1243 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1244 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1245 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1246 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1247 srcPtr += 8; | |
| 1248 dstPtr += 4; | |
| 1249 i -= 4; | |
| 1250 } | |
| 1251 while(i--) { | |
| 1252 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1253 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1254 srcPtr += 2; | |
| 1255 } | |
| 1256 | |
| 1257 writeSeq(0x02, 1 << 3); | |
| 1258 dstPtr = dst; | |
| 1259 srcPtr = src; | |
| 1260 i = width; | |
| 1261 j = phase; | |
| 1262 while(j--) { | |
| 1263 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1264 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1265 srcPtr += 2; | |
| 1266 } | |
| 1267 while(i >= 4) { | |
| 1268 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1269 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1270 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1271 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1272 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1273 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1274 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1275 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1276 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1277 srcPtr += 8; | |
| 1278 dstPtr += 4; | |
| 1279 i -= 4; | |
| 1280 } | |
| 1281 while(i--) { | |
| 1282 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1283 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1284 srcPtr += 2; | |
| 1285 } | |
| 1286 | |
| 1287 dst += FBPitch; | |
| 1288 src += SRCPitch; | |
| 1289 } | |
| 1290 rects++; | |
| 1291 } | |
| 1292 } | |
| 1293 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1294 | |
| 1295 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1296 { | |
| 1297 struct fb_cmap cmap; | |
| 1298 | |
| 1299 cmap.start = 0; | |
| 1300 cmap.len = palette_len; | |
| 1301 cmap.red = &area[0*palette_len]; | |
| 1302 cmap.green = &area[1*palette_len]; | |
| 1303 cmap.blue = &area[2*palette_len]; | |
| 1304 cmap.transp = NULL; | |
| 1305 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1306 } | |
| 1307 | |
| 1308 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1309 { | |
| 1310 struct fb_cmap cmap; | |
| 1311 | |
| 1312 cmap.start = 0; | |
| 1313 cmap.len = palette_len; | |
| 1314 cmap.red = &area[0*palette_len]; | |
| 1315 cmap.green = &area[1*palette_len]; | |
| 1316 cmap.blue = &area[2*palette_len]; | |
| 1317 cmap.transp = NULL; | |
| 1318 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1319 } | |
| 1320 | |
| 1321 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1322 struct fb_var_screeninfo *vinfo) | |
| 1323 { | |
| 1324 int i; | |
| 1325 | |
| 1326 /* Save hardware palette, if needed */ | |
| 1327 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1328 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
| 1329 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1330 if ( saved_cmap != NULL ) { | |
| 1331 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1332 } | |
| 1333 } | |
| 1334 | |
| 1335 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1336 With this mode pixel information is passed through the palette... | |
| 1337 Neat fading and gamma correction effects can be had by simply | |
| 1338 fooling around with the palette instead of changing the pixel | |
| 1339 values themselves... Very neat! | |
| 1340 | |
| 1341 Adam Meyerowitz 1/19/2000 | |
| 1342 ameyerow@optonline.com | |
| 1343 */ | |
| 1344 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1345 __u16 new_entries[3*256]; | |
| 1346 | |
| 1347 /* Save the colormap */ | |
| 1348 saved_cmaplen = 256; | |
| 1349 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1350 if ( saved_cmap != NULL ) { | |
| 1351 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1352 } | |
| 1353 | |
| 1354 /* Allocate new identity colormap */ | |
| 1355 for ( i=0; i<256; ++i ) { | |
| 1356 new_entries[(0*256)+i] = | |
| 1357 new_entries[(1*256)+i] = | |
| 1358 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1359 } | |
| 1360 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1361 } | |
| 1362 } | |
| 1363 | |
| 1364 static void FB_RestorePalette(_THIS) | |
| 1365 { | |
| 1366 /* Restore the original palette */ | |
| 1367 if ( saved_cmap ) { | |
| 1368 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
| 1369 free(saved_cmap); | |
| 1370 saved_cmap = NULL; | |
| 1371 } | |
| 1372 } | |
| 1373 | |
| 1374 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1375 { | |
| 1376 int i; | |
| 1377 __u16 r[256]; | |
| 1378 __u16 g[256]; | |
| 1379 __u16 b[256]; | |
| 1380 struct fb_cmap cmap; | |
| 1381 | |
| 1382 /* Set up the colormap */ | |
| 1383 for (i = 0; i < ncolors; i++) { | |
| 1384 r[i] = colors[i].r << 8; | |
| 1385 g[i] = colors[i].g << 8; | |
| 1386 b[i] = colors[i].b << 8; | |
| 1387 } | |
| 1388 cmap.start = firstcolor; | |
| 1389 cmap.len = ncolors; | |
| 1390 cmap.red = r; | |
| 1391 cmap.green = g; | |
| 1392 cmap.blue = b; | |
| 1393 cmap.transp = NULL; | |
| 1394 | |
| 1395 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1396 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1397 colors = this->screen->format->palette->colors; | |
| 1398 ncolors = this->screen->format->palette->ncolors; | |
| 1399 cmap.start = 0; | |
| 1400 cmap.len = ncolors; | |
| 1401 memset(r, 0, sizeof(r)); | |
| 1402 memset(g, 0, sizeof(g)); | |
| 1403 memset(b, 0, sizeof(b)); | |
| 1404 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { | |
| 1405 for ( i=ncolors-1; i>=0; --i ) { | |
| 1406 colors[i].r = (r[i]>>8); | |
| 1407 colors[i].g = (g[i]>>8); | |
| 1408 colors[i].b = (b[i]>>8); | |
| 1409 } | |
| 1410 } | |
| 1411 return(0); | |
| 1412 } | |
| 1413 return(1); | |
| 1414 } | |
| 1415 | |
| 1416 /* Note: If we are terminated, this could be called in the middle of | |
| 1417 another SDL video routine -- notably UpdateRects. | |
| 1418 */ | |
| 1419 static void FB_VideoQuit(_THIS) | |
| 1420 { | |
| 1421 int i, j; | |
| 1422 | |
| 1423 if ( this->screen ) { | |
| 1424 /* Clear screen and tell SDL not to free the pixels */ | |
| 1425 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
| 1426 #ifdef __powerpc__ /* SIGBUS when using memset() ?? */ | |
| 1427 Uint8 *rowp = (Uint8 *)this->screen->pixels; | |
| 1428 int left = this->screen->pitch*this->screen->h; | |
| 1429 while ( left-- ) { *rowp++ = 0; } | |
| 1430 #else | |
| 1431 memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); | |
| 1432 #endif | |
| 1433 } | |
| 1434 /* This test fails when using the VGA16 shadow memory */ | |
| 1435 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1436 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1437 this->screen->pixels = NULL; | |
| 1438 } | |
| 1439 } | |
| 1440 | |
| 1441 /* Clear the lock mutex */ | |
| 1442 if ( hw_lock ) { | |
| 1443 SDL_DestroyMutex(hw_lock); | |
| 1444 hw_lock = NULL; | |
| 1445 } | |
| 1446 | |
| 1447 /* Clean up defined video modes */ | |
| 1448 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1449 if ( SDL_modelist[i] != NULL ) { | |
| 1450 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
| 1451 free(SDL_modelist[i][j]); | |
| 1452 } | |
| 1453 free(SDL_modelist[i]); | |
| 1454 SDL_modelist[i] = NULL; | |
| 1455 } | |
| 1456 } | |
| 1457 | |
| 1458 /* Clean up the memory bucket list */ | |
| 1459 FB_FreeHWSurfaces(this); | |
| 1460 | |
| 1461 /* Close console and input file descriptors */ | |
| 1462 if ( console_fd > 0 ) { | |
| 1463 /* Unmap the video framebuffer and I/O registers */ | |
| 1464 if ( mapped_mem ) { | |
| 1465 munmap(mapped_mem, mapped_memlen); | |
| 1466 mapped_mem = NULL; | |
| 1467 } | |
| 1468 if ( mapped_io ) { | |
| 1469 munmap(mapped_io, mapped_iolen); | |
| 1470 mapped_io = NULL; | |
| 1471 } | |
| 1472 | |
| 1473 /* Restore the original video mode and palette */ | |
| 1474 if ( FB_InGraphicsMode(this) ) { | |
| 1475 FB_RestorePalette(this); | |
| 1476 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1477 } | |
| 1478 | |
| 1479 /* We're all done with the framebuffer */ | |
| 1480 close(console_fd); | |
| 1481 console_fd = -1; | |
| 1482 } | |
| 1483 FB_CloseMouse(this); | |
| 1484 FB_CloseKeyboard(this); | |
| 1485 } |