Mercurial > sdl-ios-xcode
annotate src/video/fbcon/SDL_fbvideo.c @ 297:f6ffac90895c
Updated copyright information for 2002
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 06 Mar 2002 11:23:08 +0000 |
| parents | e8157fcb3114 |
| children | 5fed858d551c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* 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 */ | |
| 76 { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ | |
| 77 { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ | |
| 78 { 0, 0, 512, 384 }, | |
| 79 { 0, 0, 320, 240 }, | |
| 80 { 0, 0, 320, 200 } | |
| 81 }; | |
|
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82 static const struct { |
| 0 | 83 int xres; |
| 84 int yres; | |
| 85 int pixclock; | |
| 86 int left; | |
| 87 int right; | |
| 88 int upper; | |
| 89 int lower; | |
| 90 int hslen; | |
| 91 int vslen; | |
| 92 int sync; | |
| 93 int vmode; | |
| 94 } vesa_timings[] = { | |
| 95 #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ | |
| 96 { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ | |
| 97 { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ | |
| 98 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 99 { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ | |
| 100 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 101 { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 102 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 103 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 104 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 105 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 106 #else | |
| 107 /* You can generate these timings from your XF86Config file using | |
| 108 the 'modeline2fb' perl script included with the fbset package. | |
| 109 These timings were generated for Matrox Millenium I, 15" monitor. | |
| 110 */ | |
| 111 { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ | |
| 112 { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ | |
| 113 { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ | |
| 114 { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ | |
| 115 { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ | |
| 116 { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 117 { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ | |
| 118 { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ | |
| 119 { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ | |
| 120 { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ | |
| 121 { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ | |
| 122 { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ | |
| 123 { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ | |
| 124 #endif | |
| 125 }; | |
| 126 | |
| 127 /* Initialization/Query functions */ | |
| 128 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 129 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 130 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 131 #ifdef VGA16_FBCON_SUPPORT | |
| 132 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 133 #endif | |
| 134 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 135 static void FB_VideoQuit(_THIS); | |
| 136 | |
| 137 /* Hardware surface functions */ | |
|
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138 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 0 | 139 static void FB_FreeHWSurfaces(_THIS); |
| 140 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 141 static int FB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 142 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 143 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 144 static void FB_WaitVBL(_THIS); | |
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145 static void FB_WaitIdle(_THIS); |
| 0 | 146 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 147 | |
| 148 /* Internal palette functions */ | |
| 149 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 150 struct fb_var_screeninfo *vinfo); | |
| 151 static void FB_RestorePalette(_THIS); | |
| 152 | |
| 153 /* FB driver bootstrap functions */ | |
| 154 | |
| 155 static int FB_Available(void) | |
| 156 { | |
| 157 int console; | |
| 158 const char *SDL_fbdev; | |
| 159 | |
| 160 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 161 if ( SDL_fbdev == NULL ) { | |
| 162 SDL_fbdev = "/dev/fb0"; | |
| 163 } | |
| 164 console = open(SDL_fbdev, O_RDWR, 0); | |
| 165 if ( console >= 0 ) { | |
| 166 close(console); | |
| 167 } | |
| 168 return(console >= 0); | |
| 169 } | |
| 170 | |
| 171 static void FB_DeleteDevice(SDL_VideoDevice *device) | |
| 172 { | |
| 173 free(device->hidden); | |
| 174 free(device); | |
| 175 } | |
| 176 | |
| 177 static SDL_VideoDevice *FB_CreateDevice(int devindex) | |
| 178 { | |
| 179 SDL_VideoDevice *this; | |
| 180 | |
| 181 /* Initialize all variables that we clean on shutdown */ | |
| 182 this = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); | |
| 183 if ( this ) { | |
| 184 memset(this, 0, (sizeof *this)); | |
| 185 this->hidden = (struct SDL_PrivateVideoData *) | |
| 186 malloc((sizeof *this->hidden)); | |
| 187 } | |
| 188 if ( (this == NULL) || (this->hidden == NULL) ) { | |
| 189 SDL_OutOfMemory(); | |
| 190 if ( this ) { | |
| 191 free(this); | |
| 192 } | |
| 193 return(0); | |
| 194 } | |
| 195 memset(this->hidden, 0, (sizeof *this->hidden)); | |
| 196 wait_vbl = FB_WaitVBL; | |
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197 wait_idle = FB_WaitIdle; |
| 0 | 198 mouse_fd = -1; |
| 199 keyboard_fd = -1; | |
| 200 | |
| 201 /* Set the function pointers */ | |
| 202 this->VideoInit = FB_VideoInit; | |
| 203 this->ListModes = FB_ListModes; | |
| 204 this->SetVideoMode = FB_SetVideoMode; | |
| 205 this->SetColors = FB_SetColors; | |
| 206 this->UpdateRects = NULL; | |
| 207 this->VideoQuit = FB_VideoQuit; | |
| 208 this->AllocHWSurface = FB_AllocHWSurface; | |
| 209 this->CheckHWBlit = NULL; | |
| 210 this->FillHWRect = NULL; | |
| 211 this->SetHWColorKey = NULL; | |
| 212 this->SetHWAlpha = NULL; | |
| 213 this->LockHWSurface = FB_LockHWSurface; | |
| 214 this->UnlockHWSurface = FB_UnlockHWSurface; | |
| 215 this->FlipHWSurface = FB_FlipHWSurface; | |
| 216 this->FreeHWSurface = FB_FreeHWSurface; | |
| 217 this->SetCaption = NULL; | |
| 218 this->SetIcon = NULL; | |
| 219 this->IconifyWindow = NULL; | |
| 220 this->GrabInput = NULL; | |
| 221 this->GetWMInfo = NULL; | |
| 222 this->InitOSKeymap = FB_InitOSKeymap; | |
| 223 this->PumpEvents = FB_PumpEvents; | |
| 224 | |
| 225 this->free = FB_DeleteDevice; | |
| 226 | |
| 227 return this; | |
| 228 } | |
| 229 | |
| 230 VideoBootStrap FBCON_bootstrap = { | |
| 231 "fbcon", "Linux Framebuffer Console", | |
| 232 FB_Available, FB_CreateDevice | |
| 233 }; | |
| 234 | |
| 235 static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, | |
| 236 int index, unsigned int *w, unsigned int *h) | |
| 237 { | |
| 238 int mode_okay; | |
| 239 | |
| 240 mode_okay = 0; | |
| 241 vinfo->bits_per_pixel = (index+1)*8; | |
| 242 vinfo->xres = *w; | |
| 243 vinfo->xres_virtual = *w; | |
| 244 vinfo->yres = *h; | |
| 245 vinfo->yres_virtual = *h; | |
| 246 vinfo->activate = FB_ACTIVATE_TEST; | |
| 247 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { | |
| 248 #ifdef FBCON_DEBUG | |
| 249 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); | |
| 250 #endif | |
| 251 if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { | |
| 252 *w = vinfo->xres; | |
| 253 *h = vinfo->yres; | |
| 254 mode_okay = 1; | |
| 255 } | |
| 256 } | |
| 257 return mode_okay; | |
| 258 } | |
| 259 | |
| 260 static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h) | |
| 261 { | |
| 262 SDL_Rect *mode; | |
| 263 int i; | |
| 264 int next_mode; | |
| 265 | |
| 266 /* Check to see if we already have this mode */ | |
| 267 if ( SDL_nummodes[index] > 0 ) { | |
| 268 mode = SDL_modelist[index][SDL_nummodes[index]-1]; | |
| 269 if ( (mode->w == w) && (mode->h == h) ) { | |
| 270 #ifdef FBCON_DEBUG | |
| 271 fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 272 #endif | |
| 273 return(0); | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 /* Only allow a mode if we have a valid timing for it */ | |
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278 next_mode = -1; |
| 0 | 279 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
| 280 if ( (w == vesa_timings[i].xres) && | |
| 281 (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { | |
| 282 next_mode = i; | |
| 283 break; | |
| 284 } | |
| 285 } | |
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286 if ( next_mode == -1 ) { |
| 0 | 287 #ifdef FBCON_DEBUG |
| 288 fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); | |
| 289 #endif | |
| 290 return(0); | |
| 291 } | |
| 292 | |
| 293 /* Set up the new video mode rectangle */ | |
| 294 mode = (SDL_Rect *)malloc(sizeof *mode); | |
| 295 if ( mode == NULL ) { | |
| 296 SDL_OutOfMemory(); | |
| 297 return(-1); | |
| 298 } | |
| 299 mode->x = 0; | |
| 300 mode->y = 0; | |
| 301 mode->w = w; | |
| 302 mode->h = h; | |
| 303 #ifdef FBCON_DEBUG | |
| 304 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); | |
| 305 #endif | |
| 306 | |
| 307 /* Allocate the new list of modes, and fill in the new mode */ | |
| 308 next_mode = SDL_nummodes[index]; | |
| 309 SDL_modelist[index] = (SDL_Rect **) | |
| 310 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | |
| 311 if ( SDL_modelist[index] == NULL ) { | |
| 312 SDL_OutOfMemory(); | |
| 313 SDL_nummodes[index] = 0; | |
| 314 free(mode); | |
| 315 return(-1); | |
| 316 } | |
| 317 SDL_modelist[index][next_mode] = mode; | |
| 318 SDL_modelist[index][next_mode+1] = NULL; | |
| 319 SDL_nummodes[index]++; | |
| 320 | |
| 321 return(0); | |
| 322 } | |
| 323 | |
| 324 static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 325 { | |
| 326 struct fb_fix_screeninfo finfo; | |
| 327 struct fb_var_screeninfo vinfo; | |
| 328 int i, j; | |
| 329 int current_index; | |
| 330 unsigned int current_w; | |
| 331 unsigned int current_h; | |
| 332 const char *SDL_fbdev; | |
| 333 | |
| 334 /* Initialize the library */ | |
| 335 SDL_fbdev = getenv("SDL_FBDEV"); | |
| 336 if ( SDL_fbdev == NULL ) { | |
| 337 SDL_fbdev = "/dev/fb0"; | |
| 338 } | |
| 339 console_fd = open(SDL_fbdev, O_RDWR, 0); | |
| 340 if ( console_fd < 0 ) { | |
| 341 SDL_SetError("Unable to open %s", SDL_fbdev); | |
| 342 return(-1); | |
| 343 } | |
| 344 | |
| 345 #ifndef DISABLE_THREADS | |
| 346 /* Create the hardware surface lock mutex */ | |
| 347 hw_lock = SDL_CreateMutex(); | |
| 348 if ( hw_lock == NULL ) { | |
| 349 SDL_SetError("Unable to create lock mutex"); | |
| 350 FB_VideoQuit(this); | |
| 351 return(-1); | |
| 352 } | |
| 353 #endif | |
| 354 | |
| 355 /* Get the type of video hardware */ | |
| 356 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 357 SDL_SetError("Couldn't get console hardware info"); | |
| 358 FB_VideoQuit(this); | |
| 359 return(-1); | |
| 360 } | |
| 361 switch (finfo.type) { | |
| 362 case FB_TYPE_PACKED_PIXELS: | |
| 363 /* Supported, no worries.. */ | |
| 364 break; | |
| 365 #ifdef VGA16_FBCON_SUPPORT | |
| 366 case FB_TYPE_VGA_PLANES: | |
| 367 /* VGA16 is supported, but that's it */ | |
| 368 if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { | |
| 369 if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { | |
| 370 SDL_SetError("No I/O port permissions"); | |
| 371 FB_VideoQuit(this); | |
| 372 return(-1); | |
| 373 } | |
| 374 this->SetVideoMode = FB_SetVGA16Mode; | |
| 375 break; | |
| 376 } | |
| 377 /* Fall through to unsupported case */ | |
| 378 #endif /* VGA16_FBCON_SUPPORT */ | |
| 379 default: | |
| 380 SDL_SetError("Unsupported console hardware"); | |
| 381 FB_VideoQuit(this); | |
| 382 return(-1); | |
| 383 } | |
| 384 switch (finfo.visual) { | |
| 385 case FB_VISUAL_TRUECOLOR: | |
| 386 case FB_VISUAL_PSEUDOCOLOR: | |
| 387 case FB_VISUAL_STATIC_PSEUDOCOLOR: | |
| 388 case FB_VISUAL_DIRECTCOLOR: | |
| 389 break; | |
| 390 default: | |
| 391 SDL_SetError("Unsupported console hardware"); | |
| 392 FB_VideoQuit(this); | |
| 393 return(-1); | |
| 394 } | |
| 395 | |
| 396 /* Check if the user wants to disable hardware acceleration */ | |
| 397 { const char *fb_accel; | |
| 398 fb_accel = getenv("SDL_FBACCEL"); | |
| 399 if ( fb_accel ) { | |
| 400 finfo.accel = atoi(fb_accel); | |
| 401 } | |
| 402 } | |
| 403 | |
| 404 /* Memory map the device, compensating for buggy PPC mmap() */ | |
| 405 mapped_offset = (((long)finfo.smem_start) - | |
| 406 (((long)finfo.smem_start)&~(PAGE_SIZE-1))); | |
| 407 mapped_memlen = finfo.smem_len+mapped_offset; | |
| 408 mapped_mem = mmap(NULL, mapped_memlen, | |
| 409 PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); | |
| 410 if ( mapped_mem == (char *)-1 ) { | |
| 411 SDL_SetError("Unable to memory map the video hardware"); | |
| 412 mapped_mem = NULL; | |
| 413 FB_VideoQuit(this); | |
| 414 return(-1); | |
| 415 } | |
| 416 | |
| 417 /* Determine the current screen depth */ | |
| 418 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 419 SDL_SetError("Couldn't get console pixel format"); | |
| 420 FB_VideoQuit(this); | |
| 421 return(-1); | |
| 422 } | |
| 423 vformat->BitsPerPixel = vinfo.bits_per_pixel; | |
| 424 if ( vformat->BitsPerPixel < 8 ) { | |
| 425 /* Assuming VGA16, we handle this via a shadow framebuffer */ | |
| 426 vformat->BitsPerPixel = 8; | |
| 427 } | |
| 428 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 429 vformat->Rmask <<= 1; | |
| 430 vformat->Rmask |= (0x00000001<<vinfo.red.offset); | |
| 431 } | |
| 432 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 433 vformat->Gmask <<= 1; | |
| 434 vformat->Gmask |= (0x00000001<<vinfo.green.offset); | |
| 435 } | |
| 436 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 437 vformat->Bmask <<= 1; | |
| 438 vformat->Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 439 } | |
| 440 saved_vinfo = vinfo; | |
| 441 | |
| 442 /* Save hardware palette, if needed */ | |
| 443 FB_SavePalette(this, &finfo, &vinfo); | |
| 444 | |
| 445 /* If the I/O registers are available, memory map them so we | |
| 446 can take advantage of any supported hardware acceleration. | |
| 447 */ | |
| 448 vinfo.accel_flags = 0; /* Temporarily reserve registers */ | |
| 449 ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); | |
| 450 if ( finfo.accel && finfo.mmio_len ) { | |
| 451 mapped_iolen = finfo.mmio_len; | |
| 452 mapped_io = mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, | |
| 453 MAP_SHARED, console_fd, mapped_memlen); | |
| 454 if ( mapped_io == (char *)-1 ) { | |
| 455 /* Hmm, failed to memory map I/O registers */ | |
| 456 mapped_io = NULL; | |
| 457 } | |
| 458 } | |
| 459 | |
| 460 /* Query for the list of available video modes */ | |
| 461 current_w = vinfo.xres; | |
| 462 current_h = vinfo.yres; | |
| 463 current_index = ((vinfo.bits_per_pixel+7)/8)-1; | |
| 464 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 465 SDL_nummodes[i] = 0; | |
| 466 SDL_modelist[i] = NULL; | |
| 467 for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { | |
| 468 unsigned int w, h; | |
| 469 | |
| 470 /* See if we are querying for the current mode */ | |
| 471 w = checkres[j].w; | |
| 472 h = checkres[j].h; | |
| 473 if ( i == current_index ) { | |
| 474 if ( (current_w > w) || (current_h > h) ) { | |
| 475 /* Only check once */ | |
| 476 FB_AddMode(this, i,current_w,current_h); | |
| 477 current_index = -1; | |
| 478 } | |
| 479 } | |
| 480 if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { | |
| 481 FB_AddMode(this, i, w, h); | |
| 482 } | |
| 483 } | |
| 484 } | |
| 485 | |
| 486 /* Fill in our hardware acceleration capabilities */ | |
| 487 this->info.wm_available = 0; | |
| 488 this->info.hw_available = 1; | |
| 489 this->info.video_mem = finfo.smem_len/1024; | |
| 490 if ( mapped_io ) { | |
| 491 switch (finfo.accel) { | |
| 492 case FB_ACCEL_MATROX_MGA2064W: | |
| 493 case FB_ACCEL_MATROX_MGA1064SG: | |
| 494 case FB_ACCEL_MATROX_MGA2164W: | |
| 495 case FB_ACCEL_MATROX_MGA2164W_AGP: | |
| 496 case FB_ACCEL_MATROX_MGAG100: | |
| 497 /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ | |
| 498 case FB_ACCEL_MATROX_MGAG400: | |
| 499 #ifdef FBACCEL_DEBUG | |
| 500 printf("Matrox hardware accelerator!\n"); | |
| 501 #endif | |
| 502 FB_MatroxAccel(this, finfo.accel); | |
| 503 break; | |
| 504 case FB_ACCEL_3DFX_BANSHEE: | |
| 505 #ifdef FBACCEL_DEBUG | |
| 506 printf("3DFX hardware accelerator!\n"); | |
| 507 #endif | |
| 508 FB_3DfxAccel(this, finfo.accel); | |
| 509 break; | |
|
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510 case FB_ACCEL_NV3: |
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511 case FB_ACCEL_NV4: |
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512 #ifdef FBACCEL_DEBUG |
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513 printf("NVidia hardware accelerator!\n"); |
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514 #endif |
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515 FB_RivaAccel(this, finfo.accel); |
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516 break; |
| 0 | 517 default: |
| 518 #ifdef FBACCEL_DEBUG | |
| 519 printf("Unknown hardware accelerator.\n"); | |
| 520 #endif | |
| 521 break; | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 /* Enable mouse and keyboard support */ | |
| 526 if ( FB_OpenKeyboard(this) < 0 ) { | |
| 527 FB_VideoQuit(this); | |
| 528 return(-1); | |
| 529 } | |
| 530 if ( FB_OpenMouse(this) < 0 ) { | |
| 531 const char *sdl_nomouse; | |
| 532 | |
| 533 sdl_nomouse = getenv("SDL_NOMOUSE"); | |
| 534 if ( ! sdl_nomouse ) { | |
| 535 SDL_SetError("Unable to open mouse"); | |
| 536 FB_VideoQuit(this); | |
| 537 return(-1); | |
| 538 } | |
| 539 } | |
| 540 | |
| 541 /* We're done! */ | |
| 542 return(0); | |
| 543 } | |
| 544 | |
| 545 static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 546 { | |
| 547 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 548 } | |
| 549 | |
| 550 /* Various screen update functions available */ | |
| 551 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 552 #ifdef VGA16_FBCON_SUPPORT | |
| 553 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); | |
| 554 #endif | |
| 555 | |
| 556 #ifdef FBCON_DEBUG | |
| 557 static void print_vinfo(struct fb_var_screeninfo *vinfo) | |
| 558 { | |
| 559 fprintf(stderr, "Printing vinfo:\n"); | |
| 560 fprintf(stderr, "\txres: %d\n", vinfo->xres); | |
| 561 fprintf(stderr, "\tyres: %d\n", vinfo->yres); | |
| 562 fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); | |
| 563 fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); | |
| 564 fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); | |
| 565 fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); | |
| 566 fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); | |
| 567 fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); | |
| 568 fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); | |
| 569 fprintf(stderr, "\tactivate: %d\n", vinfo->activate); | |
| 570 fprintf(stderr, "\theight: %d\n", vinfo->height); | |
| 571 fprintf(stderr, "\twidth: %d\n", vinfo->width); | |
| 572 fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); | |
| 573 fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); | |
| 574 fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); | |
| 575 fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); | |
| 576 fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); | |
| 577 fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); | |
| 578 fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); | |
| 579 fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); | |
| 580 fprintf(stderr, "\tsync: %d\n", vinfo->sync); | |
| 581 fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); | |
| 582 fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); | |
| 583 fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); | |
| 584 fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); | |
| 585 fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); | |
| 586 } | |
| 587 static void print_finfo(struct fb_fix_screeninfo *finfo) | |
| 588 { | |
| 589 fprintf(stderr, "Printing finfo:\n"); | |
| 590 fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); | |
| 591 fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); | |
| 592 fprintf(stderr, "\ttype = %d\n", finfo->type); | |
| 593 fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); | |
| 594 fprintf(stderr, "\tvisual = %d\n", finfo->visual); | |
| 595 fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); | |
| 596 fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); | |
| 597 fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); | |
| 598 fprintf(stderr, "\tline_length = %d\n", finfo->line_length); | |
| 599 fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); | |
| 600 fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); | |
| 601 fprintf(stderr, "\taccel = %d\n", finfo->accel); | |
| 602 } | |
| 603 #endif | |
| 604 | |
| 605 static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) | |
| 606 { | |
| 607 int matched; | |
| 608 FILE *fbmodes; | |
| 609 | |
| 610 matched = 0; | |
| 611 fbmodes = fopen("/etc/fb.modes", "r"); | |
| 612 if ( fbmodes ) { | |
| 613 /* FIXME: Parse the mode definition file */ | |
| 614 fclose(fbmodes); | |
| 615 } | |
| 616 return(matched); | |
| 617 } | |
| 618 | |
| 619 static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) | |
| 620 { | |
| 621 int matched; | |
| 622 int i; | |
| 623 | |
| 624 /* Check for VESA timings */ | |
| 625 matched = 0; | |
| 626 for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { | |
| 627 if ( (vinfo->xres == vesa_timings[i].xres) && | |
| 628 (vinfo->yres == vesa_timings[i].yres) ) { | |
| 629 #ifdef FBCON_DEBUG | |
| 630 fprintf(stderr, "Using VESA timings for %dx%d\n", | |
| 631 vinfo->xres, vinfo->yres); | |
| 632 #endif | |
| 633 if ( vesa_timings[i].pixclock ) { | |
| 634 vinfo->pixclock = vesa_timings[i].pixclock; | |
| 635 } | |
| 636 vinfo->left_margin = vesa_timings[i].left; | |
| 637 vinfo->right_margin = vesa_timings[i].right; | |
| 638 vinfo->upper_margin = vesa_timings[i].upper; | |
| 639 vinfo->lower_margin = vesa_timings[i].lower; | |
| 640 vinfo->hsync_len = vesa_timings[i].hslen; | |
| 641 vinfo->vsync_len = vesa_timings[i].vslen; | |
| 642 vinfo->sync = vesa_timings[i].sync; | |
| 643 vinfo->vmode = vesa_timings[i].vmode; | |
| 644 matched = 1; | |
| 645 break; | |
| 646 } | |
| 647 } | |
| 648 return(matched); | |
| 649 } | |
| 650 | |
| 651 #ifdef VGA16_FBCON_SUPPORT | |
| 652 static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, | |
| 653 int width, int height, int bpp, Uint32 flags) | |
| 654 { | |
| 655 struct fb_fix_screeninfo finfo; | |
| 656 struct fb_var_screeninfo vinfo; | |
| 657 | |
| 658 /* Set the terminal into graphics mode */ | |
| 659 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 660 return(NULL); | |
| 661 } | |
| 662 | |
| 663 /* Restore the original palette */ | |
| 664 FB_RestorePalette(this); | |
| 665 | |
| 666 /* Set the video mode and get the final screen format */ | |
| 667 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 668 SDL_SetError("Couldn't get console screen info"); | |
| 669 return(NULL); | |
| 670 } | |
| 671 cache_vinfo = vinfo; | |
| 672 #ifdef FBCON_DEBUG | |
| 673 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 674 print_vinfo(&vinfo); | |
| 675 #endif | |
| 676 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 677 return(NULL); | |
| 678 } | |
|
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679 current->format->palette->ncolors = 16; |
| 0 | 680 |
| 681 /* Get the fixed information about the console hardware. | |
| 682 This is necessary since finfo.line_length changes. | |
| 683 */ | |
| 684 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 685 SDL_SetError("Couldn't get console hardware info"); | |
| 686 return(NULL); | |
| 687 } | |
| 688 #ifdef FBCON_DEBUG | |
| 689 fprintf(stderr, "Printing actual finfo:\n"); | |
| 690 print_finfo(&finfo); | |
| 691 #endif | |
| 692 | |
| 693 /* Save hardware palette, if needed */ | |
| 694 FB_SavePalette(this, &finfo, &vinfo); | |
| 695 | |
| 696 /* Set up the new mode framebuffer */ | |
| 697 current->flags = SDL_FULLSCREEN; | |
| 698 current->w = vinfo.xres; | |
| 699 current->h = vinfo.yres; | |
| 700 current->pitch = current->w; | |
| 701 current->pixels = malloc(current->h*current->pitch); | |
| 702 | |
| 703 /* Set the update rectangle function */ | |
| 704 this->UpdateRects = FB_VGA16Update; | |
| 705 | |
| 706 /* We're done */ | |
| 707 return(current); | |
| 708 } | |
| 709 #endif /* VGA16_FBCON_SUPPORT */ | |
| 710 | |
| 711 static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 712 int width, int height, int bpp, Uint32 flags) | |
| 713 { | |
| 714 struct fb_fix_screeninfo finfo; | |
| 715 struct fb_var_screeninfo vinfo; | |
| 716 int i; | |
| 717 Uint32 Rmask; | |
| 718 Uint32 Gmask; | |
| 719 Uint32 Bmask; | |
| 720 char *surfaces_mem; | |
| 721 int surfaces_len; | |
| 722 | |
| 723 /* Set the terminal into graphics mode */ | |
| 724 if ( FB_EnterGraphicsMode(this) < 0 ) { | |
| 725 return(NULL); | |
| 726 } | |
| 727 | |
| 728 /* Restore the original palette */ | |
| 729 FB_RestorePalette(this); | |
| 730 | |
| 731 /* Set the video mode and get the final screen format */ | |
| 732 if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { | |
| 733 SDL_SetError("Couldn't get console screen info"); | |
| 734 return(NULL); | |
| 735 } | |
| 736 #ifdef FBCON_DEBUG | |
| 737 fprintf(stderr, "Printing original vinfo:\n"); | |
| 738 print_vinfo(&vinfo); | |
| 739 #endif | |
| 740 if ( (vinfo.xres != width) || (vinfo.yres != height) || | |
| 741 (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { | |
| 742 vinfo.activate = FB_ACTIVATE_NOW; | |
| 743 vinfo.accel_flags = 0; | |
| 744 vinfo.bits_per_pixel = bpp; | |
| 745 vinfo.xres = width; | |
| 746 vinfo.xres_virtual = width; | |
| 747 vinfo.yres = height; | |
| 748 if ( flags & SDL_DOUBLEBUF ) { | |
| 749 vinfo.yres_virtual = height*2; | |
| 750 } else { | |
| 751 vinfo.yres_virtual = height; | |
| 752 } | |
| 753 vinfo.xoffset = 0; | |
| 754 vinfo.yoffset = 0; | |
| 755 vinfo.red.length = vinfo.red.offset = 0; | |
| 756 vinfo.green.length = vinfo.green.offset = 0; | |
| 757 vinfo.blue.length = vinfo.blue.offset = 0; | |
| 758 vinfo.transp.length = vinfo.transp.offset = 0; | |
| 759 if ( ! choose_fbmodes_mode(&vinfo) ) { | |
| 760 choose_vesa_mode(&vinfo); | |
| 761 } | |
| 762 #ifdef FBCON_DEBUG | |
| 763 fprintf(stderr, "Printing wanted vinfo:\n"); | |
| 764 print_vinfo(&vinfo); | |
| 765 #endif | |
| 766 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 767 vinfo.yres_virtual = height; | |
| 768 if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { | |
| 769 SDL_SetError("Couldn't set console screen info"); | |
| 770 return(NULL); | |
| 771 } | |
| 772 } | |
|
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773 } else { |
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774 int maxheight; |
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775 |
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776 /* Figure out how much video memory is available */ |
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777 if ( flags & SDL_DOUBLEBUF ) { |
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778 maxheight = height*2; |
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779 } else { |
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780 maxheight = height; |
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781 } |
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782 if ( vinfo.yres_virtual > maxheight ) { |
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783 vinfo.yres_virtual = maxheight; |
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784 } |
| 0 | 785 } |
| 786 cache_vinfo = vinfo; | |
| 787 #ifdef FBCON_DEBUG | |
| 788 fprintf(stderr, "Printing actual vinfo:\n"); | |
| 789 print_vinfo(&vinfo); | |
| 790 #endif | |
| 791 Rmask = 0; | |
| 792 for ( i=0; i<vinfo.red.length; ++i ) { | |
| 793 Rmask <<= 1; | |
| 794 Rmask |= (0x00000001<<vinfo.red.offset); | |
| 795 } | |
| 796 Gmask = 0; | |
| 797 for ( i=0; i<vinfo.green.length; ++i ) { | |
| 798 Gmask <<= 1; | |
| 799 Gmask |= (0x00000001<<vinfo.green.offset); | |
| 800 } | |
| 801 Bmask = 0; | |
| 802 for ( i=0; i<vinfo.blue.length; ++i ) { | |
| 803 Bmask <<= 1; | |
| 804 Bmask |= (0x00000001<<vinfo.blue.offset); | |
| 805 } | |
| 806 if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, | |
| 807 Rmask, Gmask, Bmask, 0) ) { | |
| 808 return(NULL); | |
| 809 } | |
| 810 | |
| 811 /* Get the fixed information about the console hardware. | |
| 812 This is necessary since finfo.line_length changes. | |
| 813 */ | |
| 814 if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { | |
| 815 SDL_SetError("Couldn't get console hardware info"); | |
| 816 return(NULL); | |
| 817 } | |
| 818 | |
| 819 /* Save hardware palette, if needed */ | |
| 820 FB_SavePalette(this, &finfo, &vinfo); | |
| 821 | |
| 822 /* Set up the new mode framebuffer */ | |
| 823 current->flags = (SDL_FULLSCREEN|SDL_HWSURFACE); | |
| 824 current->w = vinfo.xres; | |
| 825 current->h = vinfo.yres; | |
| 826 current->pitch = finfo.line_length; | |
| 827 current->pixels = mapped_mem+mapped_offset; | |
| 828 | |
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829 /* Set up the information for hardware surfaces */ |
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830 surfaces_mem = (char *)current->pixels + |
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831 vinfo.yres_virtual*current->pitch; |
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832 surfaces_len = (mapped_memlen-(surfaces_mem-mapped_mem)); |
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833 FB_FreeHWSurfaces(this); |
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834 FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
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835 |
| 0 | 836 /* Let the application know we have a hardware palette */ |
| 837 switch (finfo.visual) { | |
| 838 case FB_VISUAL_PSEUDOCOLOR: | |
| 839 current->flags |= SDL_HWPALETTE; | |
| 840 break; | |
| 841 default: | |
| 842 break; | |
| 843 } | |
| 844 | |
| 845 /* Update for double-buffering, if we can */ | |
| 846 if ( flags & SDL_DOUBLEBUF ) { | |
| 847 if ( vinfo.yres_virtual == (height*2) ) { | |
| 848 current->flags |= SDL_DOUBLEBUF; | |
| 849 flip_page = 0; | |
| 850 flip_address[0] = (char *)current->pixels; | |
| 851 flip_address[1] = (char *)current->pixels+ | |
| 852 current->h*current->pitch; | |
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853 this->screen = current; |
| 0 | 854 FB_FlipHWSurface(this, current); |
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855 this->screen = NULL; |
| 0 | 856 } |
| 857 } | |
| 858 | |
| 859 /* Set the update rectangle function */ | |
| 860 this->UpdateRects = FB_DirectUpdate; | |
| 861 | |
| 862 /* We're done */ | |
| 863 return(current); | |
| 864 } | |
| 865 | |
| 866 #ifdef FBCON_DEBUG | |
| 867 void FB_DumpHWSurfaces(_THIS) | |
| 868 { | |
| 869 vidmem_bucket *bucket; | |
| 870 | |
| 871 printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); | |
| 872 printf("\n"); | |
| 873 printf(" Base Size\n"); | |
| 874 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 875 printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); | |
| 876 if ( bucket->prev ) { | |
| 877 if ( bucket->base != bucket->prev->base+bucket->prev->size ) { | |
| 878 printf("Warning, corrupt bucket list! (prev)\n"); | |
| 879 } | |
| 880 } else { | |
| 881 if ( bucket != &surfaces ) { | |
| 882 printf("Warning, corrupt bucket list! (!prev)\n"); | |
| 883 } | |
| 884 } | |
| 885 if ( bucket->next ) { | |
| 886 if ( bucket->next->base != bucket->base+bucket->size ) { | |
| 887 printf("Warning, corrupt bucket list! (next)\n"); | |
| 888 } | |
| 889 } | |
| 890 } | |
| 891 printf("\n"); | |
| 892 } | |
| 893 #endif | |
| 894 | |
|
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895 static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 0 | 896 { |
|
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897 vidmem_bucket *bucket; |
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898 |
| 0 | 899 surfaces_memtotal = size; |
| 900 surfaces_memleft = size; | |
|
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901 |
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902 if ( surfaces_memleft > 0 ) { |
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903 bucket = (vidmem_bucket *)malloc(sizeof(*bucket)); |
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904 if ( bucket == NULL ) { |
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905 SDL_OutOfMemory(); |
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906 return(-1); |
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907 } |
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908 bucket->prev = &surfaces; |
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909 bucket->used = 0; |
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910 bucket->dirty = 0; |
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911 bucket->base = base; |
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912 bucket->size = size; |
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913 bucket->next = NULL; |
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914 } else { |
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915 bucket = NULL; |
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916 } |
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917 |
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918 surfaces.prev = NULL; |
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919 surfaces.used = 1; |
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920 surfaces.dirty = 0; |
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921 surfaces.base = screen->pixels; |
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922 surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
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923 surfaces.next = bucket; |
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924 screen->hwdata = (struct private_hwdata *)&surfaces; |
| 0 | 925 return(0); |
| 926 } | |
| 927 static void FB_FreeHWSurfaces(_THIS) | |
| 928 { | |
| 929 vidmem_bucket *bucket, *freeable; | |
| 930 | |
| 931 bucket = surfaces.next; | |
| 932 while ( bucket ) { | |
| 933 freeable = bucket; | |
| 934 bucket = bucket->next; | |
| 935 free(freeable); | |
| 936 } | |
| 937 surfaces.next = NULL; | |
| 938 } | |
| 939 | |
| 940 static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 941 { | |
| 942 vidmem_bucket *bucket; | |
| 943 int size; | |
| 944 int extra; | |
| 945 | |
| 946 /* Temporarily, we only allow surfaces the same width as display. | |
| 947 Some blitters require the pitch between two hardware surfaces | |
| 948 to be the same. Others have interesting alignment restrictions. | |
| 949 Until someone who knows these details looks at the code... | |
| 950 */ | |
| 951 if ( surface->pitch > SDL_VideoSurface->pitch ) { | |
| 952 SDL_SetError("Surface requested wider than screen"); | |
| 953 return(-1); | |
| 954 } | |
| 955 surface->pitch = SDL_VideoSurface->pitch; | |
| 956 size = surface->h * surface->pitch; | |
| 957 #ifdef FBCON_DEBUG | |
| 958 fprintf(stderr, "Allocating bucket of %d bytes\n", size); | |
| 959 #endif | |
| 960 | |
| 961 /* Quick check for available mem */ | |
| 962 if ( size > surfaces_memleft ) { | |
| 963 SDL_SetError("Not enough video memory"); | |
| 964 return(-1); | |
| 965 } | |
| 966 | |
| 967 /* Search for an empty bucket big enough */ | |
| 968 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
| 969 if ( ! bucket->used && (size <= bucket->size) ) { | |
| 970 break; | |
| 971 } | |
| 972 } | |
| 973 if ( bucket == NULL ) { | |
| 974 SDL_SetError("Video memory too fragmented"); | |
| 975 return(-1); | |
| 976 } | |
| 977 | |
| 978 /* Create a new bucket for left-over memory */ | |
| 979 extra = (bucket->size - size); | |
| 980 if ( extra ) { | |
| 981 vidmem_bucket *newbucket; | |
| 982 | |
| 983 #ifdef FBCON_DEBUG | |
| 984 fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); | |
| 985 #endif | |
| 986 newbucket = (vidmem_bucket *)malloc(sizeof(*newbucket)); | |
| 987 if ( newbucket == NULL ) { | |
| 988 SDL_OutOfMemory(); | |
| 989 return(-1); | |
| 990 } | |
| 991 newbucket->prev = bucket; | |
| 992 newbucket->used = 0; | |
| 993 newbucket->base = bucket->base+size; | |
| 994 newbucket->size = extra; | |
| 995 newbucket->next = bucket->next; | |
| 996 if ( bucket->next ) { | |
| 997 bucket->next->prev = newbucket; | |
| 998 } | |
| 999 bucket->next = newbucket; | |
| 1000 } | |
| 1001 | |
| 1002 /* Set the current bucket values and return it! */ | |
| 1003 bucket->used = 1; | |
| 1004 bucket->size = size; | |
|
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1005 bucket->dirty = 0; |
| 0 | 1006 #ifdef FBCON_DEBUG |
| 1007 fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); | |
| 1008 #endif | |
| 1009 surfaces_memleft -= size; | |
| 1010 surface->flags |= SDL_HWSURFACE; | |
| 1011 surface->pixels = bucket->base; | |
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1012 surface->hwdata = (struct private_hwdata *)bucket; |
| 0 | 1013 return(0); |
| 1014 } | |
| 1015 static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1016 { | |
| 1017 vidmem_bucket *bucket, *freeable; | |
| 1018 | |
| 1019 /* Look for the bucket in the current list */ | |
| 1020 for ( bucket=&surfaces; bucket; bucket=bucket->next ) { | |
|
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1021 if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 0 | 1022 break; |
| 1023 } | |
| 1024 } | |
|
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1025 if ( bucket && bucket->used ) { |
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1026 /* Add the memory back to the total */ |
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1027 #ifdef DGA_DEBUG |
| 0 | 1028 printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1029 #endif | |
|
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1030 surfaces_memleft += bucket->size; |
| 0 | 1031 |
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1032 /* Can we merge the space with surrounding buckets? */ |
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1033 bucket->used = 0; |
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1034 if ( bucket->next && ! bucket->next->used ) { |
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1035 #ifdef DGA_DEBUG |
| 0 | 1036 printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1037 #endif | |
|
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1038 freeable = bucket->next; |
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1039 bucket->size += bucket->next->size; |
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1040 bucket->next = bucket->next->next; |
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1041 if ( bucket->next ) { |
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1042 bucket->next->prev = bucket; |
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1043 } |
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1044 free(freeable); |
| 0 | 1045 } |
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1046 if ( bucket->prev && ! bucket->prev->used ) { |
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1047 #ifdef DGA_DEBUG |
| 0 | 1048 printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1049 #endif | |
|
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1050 freeable = bucket; |
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1051 bucket->prev->size += bucket->size; |
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1052 bucket->prev->next = bucket->next; |
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1053 if ( bucket->next ) { |
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1054 bucket->next->prev = bucket->prev; |
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1055 } |
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1056 free(freeable); |
| 0 | 1057 } |
| 1058 } | |
| 1059 surface->pixels = NULL; | |
|
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1060 surface->hwdata = NULL; |
| 0 | 1061 } |
| 1062 static int FB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1063 { | |
|
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1064 if ( surface == this->screen ) { |
| 0 | 1065 SDL_mutexP(hw_lock); |
|
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1066 if ( FB_IsSurfaceBusy(surface) ) { |
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1067 FB_WaitBusySurfaces(this); |
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1068 } |
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1069 } else { |
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1070 if ( FB_IsSurfaceBusy(surface) ) { |
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1071 FB_WaitBusySurfaces(this); |
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1072 } |
| 0 | 1073 } |
| 1074 return(0); | |
| 1075 } | |
| 1076 static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1077 { | |
|
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1078 if ( surface == this->screen ) { |
| 0 | 1079 SDL_mutexV(hw_lock); |
| 1080 } | |
| 1081 } | |
| 1082 | |
| 1083 static void FB_WaitVBL(_THIS) | |
| 1084 { | |
| 1085 #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ | |
| 1086 ioctl(console_fd, FBIOWAITRETRACE, 0); | |
| 1087 #endif | |
| 1088 return; | |
| 1089 } | |
| 1090 | |
|
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1091 static void FB_WaitIdle(_THIS) |
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1092 { |
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1093 return; |
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1094 } |
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1095 |
| 0 | 1096 static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1097 { | |
| 1098 /* Wait for vertical retrace and then flip display */ | |
| 1099 cache_vinfo.yoffset = flip_page*surface->h; | |
|
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1100 if ( FB_IsSurfaceBusy(this->screen) ) { |
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1101 FB_WaitBusySurfaces(this); |
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1102 } |
| 0 | 1103 wait_vbl(this); |
| 1104 if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { | |
| 1105 SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); | |
| 1106 return(-1); | |
| 1107 } | |
| 1108 flip_page = !flip_page; | |
| 1109 | |
| 1110 surface->pixels = flip_address[flip_page]; | |
| 1111 return(0); | |
| 1112 } | |
| 1113 | |
| 1114 static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 1115 { | |
| 1116 /* The application is already updating the visible video memory */ | |
| 1117 return; | |
| 1118 } | |
| 1119 | |
| 1120 #ifdef VGA16_FBCON_SUPPORT | |
| 1121 /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ | |
| 1122 #define writeGr(index, value) \ | |
| 1123 outb(index, 0x3CE); \ | |
| 1124 outb(value, 0x3CF); | |
| 1125 #define writeSeq(index, value) \ | |
| 1126 outb(index, 0x3C4); \ | |
| 1127 outb(value, 0x3C5); | |
| 1128 | |
| 1129 static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) | |
| 1130 { | |
| 1131 SDL_Surface *screen; | |
| 1132 int width, height, FBPitch, left, i, j, SRCPitch, phase; | |
| 1133 register Uint32 m; | |
| 1134 Uint8 s1, s2, s3, s4; | |
| 1135 Uint32 *src, *srcPtr; | |
| 1136 Uint8 *dst, *dstPtr; | |
| 1137 | |
| 1138 screen = this->screen; | |
| 1139 FBPitch = screen->w >> 3; | |
| 1140 SRCPitch = screen->pitch >> 2; | |
| 1141 | |
| 1142 writeGr(0x03, 0x00); | |
| 1143 writeGr(0x05, 0x00); | |
| 1144 writeGr(0x01, 0x00); | |
| 1145 writeGr(0x08, 0xFF); | |
| 1146 | |
| 1147 while(numrects--) { | |
| 1148 left = rects->x & ~7; | |
| 1149 width = (rects->w + 7) >> 3; | |
| 1150 height = rects->h; | |
| 1151 src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); | |
| 1152 dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); | |
| 1153 | |
| 1154 if((phase = (long)dst & 3L)) { | |
| 1155 phase = 4 - phase; | |
| 1156 if(phase > width) phase = width; | |
| 1157 width -= phase; | |
| 1158 } | |
| 1159 | |
| 1160 while(height--) { | |
| 1161 writeSeq(0x02, 1 << 0); | |
| 1162 dstPtr = dst; | |
| 1163 srcPtr = src; | |
| 1164 i = width; | |
| 1165 j = phase; | |
| 1166 while(j--) { | |
| 1167 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1168 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1169 srcPtr += 2; | |
| 1170 } | |
| 1171 while(i >= 4) { | |
| 1172 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1173 s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1174 m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); | |
| 1175 s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1176 m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); | |
| 1177 s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1178 m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); | |
| 1179 s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1180 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1181 srcPtr += 8; | |
| 1182 dstPtr += 4; | |
| 1183 i -= 4; | |
| 1184 } | |
| 1185 while(i--) { | |
| 1186 m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); | |
| 1187 *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); | |
| 1188 srcPtr += 2; | |
| 1189 } | |
| 1190 | |
| 1191 writeSeq(0x02, 1 << 1); | |
| 1192 dstPtr = dst; | |
| 1193 srcPtr = src; | |
| 1194 i = width; | |
| 1195 j = phase; | |
| 1196 while(j--) { | |
| 1197 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1198 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1199 srcPtr += 2; | |
| 1200 } | |
| 1201 while(i >= 4) { | |
| 1202 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1203 s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1204 m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); | |
| 1205 s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1206 m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); | |
| 1207 s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1208 m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); | |
| 1209 s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1210 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1211 srcPtr += 8; | |
| 1212 dstPtr += 4; | |
| 1213 i -= 4; | |
| 1214 } | |
| 1215 while(i--) { | |
| 1216 m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); | |
| 1217 *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); | |
| 1218 srcPtr += 2; | |
| 1219 } | |
| 1220 | |
| 1221 writeSeq(0x02, 1 << 2); | |
| 1222 dstPtr = dst; | |
| 1223 srcPtr = src; | |
| 1224 i = width; | |
| 1225 j = phase; | |
| 1226 while(j--) { | |
| 1227 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1228 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1229 srcPtr += 2; | |
| 1230 } | |
| 1231 while(i >= 4) { | |
| 1232 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1233 s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1234 m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); | |
| 1235 s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1236 m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); | |
| 1237 s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1238 m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); | |
| 1239 s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1240 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1241 srcPtr += 8; | |
| 1242 dstPtr += 4; | |
| 1243 i -= 4; | |
| 1244 } | |
| 1245 while(i--) { | |
| 1246 m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); | |
| 1247 *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); | |
| 1248 srcPtr += 2; | |
| 1249 } | |
| 1250 | |
| 1251 writeSeq(0x02, 1 << 3); | |
| 1252 dstPtr = dst; | |
| 1253 srcPtr = src; | |
| 1254 i = width; | |
| 1255 j = phase; | |
| 1256 while(j--) { | |
| 1257 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1258 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1259 srcPtr += 2; | |
| 1260 } | |
| 1261 while(i >= 4) { | |
| 1262 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1263 s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1264 m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); | |
| 1265 s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1266 m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); | |
| 1267 s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1268 m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); | |
| 1269 s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1270 *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); | |
| 1271 srcPtr += 8; | |
| 1272 dstPtr += 4; | |
| 1273 i -= 4; | |
| 1274 } | |
| 1275 while(i--) { | |
| 1276 m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); | |
| 1277 *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; | |
| 1278 srcPtr += 2; | |
| 1279 } | |
| 1280 | |
| 1281 dst += FBPitch; | |
| 1282 src += SRCPitch; | |
| 1283 } | |
| 1284 rects++; | |
| 1285 } | |
| 1286 } | |
| 1287 #endif /* VGA16_FBCON_SUPPORT */ | |
| 1288 | |
| 1289 void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) | |
| 1290 { | |
| 1291 struct fb_cmap cmap; | |
| 1292 | |
| 1293 cmap.start = 0; | |
| 1294 cmap.len = palette_len; | |
| 1295 cmap.red = &area[0*palette_len]; | |
| 1296 cmap.green = &area[1*palette_len]; | |
| 1297 cmap.blue = &area[2*palette_len]; | |
| 1298 cmap.transp = NULL; | |
| 1299 ioctl(console_fd, FBIOGETCMAP, &cmap); | |
| 1300 } | |
| 1301 | |
| 1302 void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) | |
| 1303 { | |
| 1304 struct fb_cmap cmap; | |
| 1305 | |
| 1306 cmap.start = 0; | |
| 1307 cmap.len = palette_len; | |
| 1308 cmap.red = &area[0*palette_len]; | |
| 1309 cmap.green = &area[1*palette_len]; | |
| 1310 cmap.blue = &area[2*palette_len]; | |
| 1311 cmap.transp = NULL; | |
| 1312 ioctl(console_fd, FBIOPUTCMAP, &cmap); | |
| 1313 } | |
| 1314 | |
| 1315 static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, | |
| 1316 struct fb_var_screeninfo *vinfo) | |
| 1317 { | |
| 1318 int i; | |
| 1319 | |
| 1320 /* Save hardware palette, if needed */ | |
| 1321 if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { | |
| 1322 saved_cmaplen = 1<<vinfo->bits_per_pixel; | |
| 1323 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1324 if ( saved_cmap != NULL ) { | |
| 1325 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1326 } | |
| 1327 } | |
| 1328 | |
| 1329 /* Added support for FB_VISUAL_DIRECTCOLOR. | |
| 1330 With this mode pixel information is passed through the palette... | |
| 1331 Neat fading and gamma correction effects can be had by simply | |
| 1332 fooling around with the palette instead of changing the pixel | |
| 1333 values themselves... Very neat! | |
| 1334 | |
| 1335 Adam Meyerowitz 1/19/2000 | |
| 1336 ameyerow@optonline.com | |
| 1337 */ | |
| 1338 if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { | |
| 1339 __u16 new_entries[3*256]; | |
| 1340 | |
| 1341 /* Save the colormap */ | |
| 1342 saved_cmaplen = 256; | |
| 1343 saved_cmap=(__u16 *)malloc(3*saved_cmaplen*sizeof(*saved_cmap)); | |
| 1344 if ( saved_cmap != NULL ) { | |
| 1345 FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); | |
| 1346 } | |
| 1347 | |
| 1348 /* Allocate new identity colormap */ | |
| 1349 for ( i=0; i<256; ++i ) { | |
| 1350 new_entries[(0*256)+i] = | |
| 1351 new_entries[(1*256)+i] = | |
| 1352 new_entries[(2*256)+i] = (i<<8)|i; | |
| 1353 } | |
| 1354 FB_RestorePaletteFrom(this, 256, new_entries); | |
| 1355 } | |
| 1356 } | |
| 1357 | |
| 1358 static void FB_RestorePalette(_THIS) | |
| 1359 { | |
| 1360 /* Restore the original palette */ | |
| 1361 if ( saved_cmap ) { | |
| 1362 FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); | |
| 1363 free(saved_cmap); | |
| 1364 saved_cmap = NULL; | |
| 1365 } | |
| 1366 } | |
| 1367 | |
| 1368 static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1369 { | |
| 1370 int i; | |
| 1371 __u16 r[256]; | |
| 1372 __u16 g[256]; | |
| 1373 __u16 b[256]; | |
| 1374 struct fb_cmap cmap; | |
| 1375 | |
| 1376 /* Set up the colormap */ | |
| 1377 for (i = 0; i < ncolors; i++) { | |
| 1378 r[i] = colors[i].r << 8; | |
| 1379 g[i] = colors[i].g << 8; | |
| 1380 b[i] = colors[i].b << 8; | |
| 1381 } | |
| 1382 cmap.start = firstcolor; | |
| 1383 cmap.len = ncolors; | |
| 1384 cmap.red = r; | |
| 1385 cmap.green = g; | |
| 1386 cmap.blue = b; | |
| 1387 cmap.transp = NULL; | |
| 1388 | |
| 1389 if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || | |
| 1390 !(this->screen->flags & SDL_HWPALETTE) ) { | |
| 1391 colors = this->screen->format->palette->colors; | |
| 1392 ncolors = this->screen->format->palette->ncolors; | |
| 1393 cmap.start = 0; | |
| 1394 cmap.len = ncolors; | |
| 1395 memset(r, 0, sizeof(r)); | |
| 1396 memset(g, 0, sizeof(g)); | |
| 1397 memset(b, 0, sizeof(b)); | |
| 1398 if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { | |
| 1399 for ( i=ncolors-1; i>=0; --i ) { | |
| 1400 colors[i].r = (r[i]>>8); | |
| 1401 colors[i].g = (g[i]>>8); | |
| 1402 colors[i].b = (b[i]>>8); | |
| 1403 } | |
| 1404 } | |
| 1405 return(0); | |
| 1406 } | |
| 1407 return(1); | |
| 1408 } | |
| 1409 | |
| 1410 /* Note: If we are terminated, this could be called in the middle of | |
| 1411 another SDL video routine -- notably UpdateRects. | |
| 1412 */ | |
| 1413 static void FB_VideoQuit(_THIS) | |
| 1414 { | |
| 1415 int i, j; | |
| 1416 | |
| 1417 if ( this->screen ) { | |
| 1418 /* Clear screen and tell SDL not to free the pixels */ | |
| 1419 if ( this->screen->pixels && FB_InGraphicsMode(this) ) { | |
| 1420 #ifdef __powerpc__ /* SIGBUS when using memset() ?? */ | |
| 1421 Uint8 *rowp = (Uint8 *)this->screen->pixels; | |
| 1422 int left = this->screen->pitch*this->screen->h; | |
| 1423 while ( left-- ) { *rowp++ = 0; } | |
| 1424 #else | |
| 1425 memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); | |
| 1426 #endif | |
| 1427 } | |
| 1428 /* This test fails when using the VGA16 shadow memory */ | |
| 1429 if ( ((char *)this->screen->pixels >= mapped_mem) && | |
| 1430 ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { | |
| 1431 this->screen->pixels = NULL; | |
| 1432 } | |
| 1433 } | |
| 1434 | |
| 1435 /* Clear the lock mutex */ | |
| 1436 if ( hw_lock ) { | |
| 1437 SDL_DestroyMutex(hw_lock); | |
| 1438 hw_lock = NULL; | |
| 1439 } | |
| 1440 | |
| 1441 /* Clean up defined video modes */ | |
| 1442 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 1443 if ( SDL_modelist[i] != NULL ) { | |
| 1444 for ( j=0; SDL_modelist[i][j]; ++j ) { | |
| 1445 free(SDL_modelist[i][j]); | |
| 1446 } | |
| 1447 free(SDL_modelist[i]); | |
| 1448 SDL_modelist[i] = NULL; | |
| 1449 } | |
| 1450 } | |
| 1451 | |
| 1452 /* Clean up the memory bucket list */ | |
| 1453 FB_FreeHWSurfaces(this); | |
| 1454 | |
| 1455 /* Close console and input file descriptors */ | |
| 1456 if ( console_fd > 0 ) { | |
| 1457 /* Unmap the video framebuffer and I/O registers */ | |
| 1458 if ( mapped_mem ) { | |
| 1459 munmap(mapped_mem, mapped_memlen); | |
| 1460 mapped_mem = NULL; | |
| 1461 } | |
| 1462 if ( mapped_io ) { | |
| 1463 munmap(mapped_io, mapped_iolen); | |
| 1464 mapped_io = NULL; | |
| 1465 } | |
| 1466 | |
| 1467 /* Restore the original video mode and palette */ | |
| 1468 if ( FB_InGraphicsMode(this) ) { | |
| 1469 FB_RestorePalette(this); | |
| 1470 ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); | |
| 1471 } | |
| 1472 | |
| 1473 /* We're all done with the framebuffer */ | |
| 1474 close(console_fd); | |
| 1475 console_fd = -1; | |
| 1476 } | |
| 1477 FB_CloseMouse(this); | |
| 1478 FB_CloseKeyboard(this); | |
| 1479 } |