| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | /* Framebuffer console based SDL video driver implementation. |
| 25 | */ |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | #include <fcntl.h> |
| 29 | #include <unistd.h> |
| 30 | #include <sys/ioctl.h> |
| 31 | #include <sys/mman.h> |
| 32 | |
| 33 | #ifndef HAVE_GETPAGESIZE |
| 34 | #include <asm/page.h> /* For definition of PAGE_SIZE */ |
| 35 | #endif |
| 36 | |
| 37 | #include <linux/vt.h> |
| 38 | |
| 39 | #include "SDL_video.h" |
| 40 | #include "SDL_mouse.h" |
| 41 | #include "../SDL_sysvideo.h" |
| 42 | #include "../SDL_pixels_c.h" |
| 43 | #include "../../events/SDL_events_c.h" |
| 44 | #include "SDL_fbvideo.h" |
| 45 | #include "SDL_fbmouse_c.h" |
| 46 | #include "SDL_fbevents_c.h" |
| 47 | #include "SDL_fb3dfx.h" |
| 48 | #include "SDL_fbmatrox.h" |
| 49 | #include "SDL_fbriva.h" |
| 50 | |
| 51 | /*#define FBCON_DEBUG*/ |
| 52 | |
| 53 | #if defined(i386) && defined(FB_TYPE_VGA_PLANES) |
| 54 | #define VGA16_FBCON_SUPPORT |
| 55 | #include <sys/io.h> /* For ioperm() */ |
| 56 | #ifndef FB_AUX_VGA_PLANES_VGA4 |
| 57 | #define FB_AUX_VGA_PLANES_VGA4 0 |
| 58 | #endif |
| 59 | /* |
| 60 | static inline void outb (unsigned char value, unsigned short port) |
| 61 | { |
| 62 | __asm__ __volatile__ ("outb %b0,%w1"::"a" (value), "Nd" (port)); |
| 63 | } |
| 64 | */ |
| 65 | #endif /* FB_TYPE_VGA_PLANES */ |
| 66 | |
| 67 | /* A list of video resolutions that we query for (sorted largest to smallest) */ |
| 68 | static const SDL_Rect checkres[] = { |
| 69 | { 0, 0, 1600, 1200 }, /* 16 bpp: 0x11E, or 286 */ |
| 70 | { 0, 0, 1408, 1056 }, /* 16 bpp: 0x19A, or 410 */ |
| 71 | { 0, 0, 1280, 1024 }, /* 16 bpp: 0x11A, or 282 */ |
| 72 | { 0, 0, 1152, 864 }, /* 16 bpp: 0x192, or 402 */ |
| 73 | { 0, 0, 1024, 768 }, /* 16 bpp: 0x117, or 279 */ |
| 74 | { 0, 0, 960, 720 }, /* 16 bpp: 0x18A, or 394 */ |
| 75 | { 0, 0, 800, 600 }, /* 16 bpp: 0x114, or 276 */ |
| 76 | { 0, 0, 768, 576 }, /* 16 bpp: 0x182, or 386 */ |
| 77 | { 0, 0, 720, 576 }, /* PAL */ |
| 78 | { 0, 0, 720, 480 }, /* NTSC */ |
| 79 | { 0, 0, 640, 480 }, /* 16 bpp: 0x111, or 273 */ |
| 80 | { 0, 0, 640, 400 }, /* 8 bpp: 0x100, or 256 */ |
| 81 | { 0, 0, 512, 384 }, |
| 82 | { 0, 0, 320, 240 }, |
| 83 | { 0, 0, 320, 200 } |
| 84 | }; |
| 85 | static const struct { |
| 86 | int xres; |
| 87 | int yres; |
| 88 | int pixclock; |
| 89 | int left; |
| 90 | int right; |
| 91 | int upper; |
| 92 | int lower; |
| 93 | int hslen; |
| 94 | int vslen; |
| 95 | int sync; |
| 96 | int vmode; |
| 97 | } vesa_timings[] = { |
| 98 | #ifdef USE_VESA_TIMINGS /* Only tested on Matrox Millenium I */ |
| 99 | { 640, 400, 39771, 48, 16, 39, 8, 96, 2, 2, 0 }, /* 70 Hz */ |
| 100 | { 640, 480, 39683, 48, 16, 33, 10, 96, 2, 0, 0 }, /* 60 Hz */ |
| 101 | { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ |
| 102 | { 800, 600, 24038, 144, 24, 28, 8, 112, 6, 0, 0 }, /* 60 Hz */ |
| 103 | { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ |
| 104 | { 1024, 768, 15386, 160, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ |
| 105 | { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ |
| 106 | { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ |
| 107 | { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ |
| 108 | { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ |
| 109 | #else |
| 110 | /* You can generate these timings from your XF86Config file using |
| 111 | the 'modeline2fb' perl script included with the fbset package. |
| 112 | These timings were generated for Matrox Millenium I, 15" monitor. |
| 113 | */ |
| 114 | { 320, 200, 79440, 16, 16, 20, 4, 48, 1, 0, 2 }, /* 70 Hz */ |
| 115 | { 320, 240, 63492, 16, 16, 16, 4, 48, 2, 0, 2 }, /* 72 Hz */ |
| 116 | { 512, 384, 49603, 48, 16, 16, 1, 64, 3, 0, 0 }, /* 78 Hz */ |
| 117 | { 640, 400, 31746, 96, 32, 41, 1, 64, 3, 2, 0 }, /* 85 Hz */ |
| 118 | { 640, 480, 31746, 120, 16, 16, 1, 64, 3, 0, 0 }, /* 75 Hz */ |
| 119 | { 768, 576, 26101, 144, 16, 28, 6, 112, 4, 0, 0 }, /* 60 Hz */ |
| 120 | { 800, 600, 20000, 64, 56, 23, 37, 120, 6, 3, 0 }, /* 72 Hz */ |
| 121 | { 960, 720, 17686, 144, 24, 28, 8, 112, 4, 0, 0 }, /* 60 Hz */ |
| 122 | { 1024, 768, 13333, 144, 24, 29, 3, 136, 6, 0, 0 }, /* 70 Hz */ |
| 123 | { 1152, 864, 12286, 192, 32, 30, 4, 128, 4, 0, 0 }, /* 60 Hz */ |
| 124 | { 1280, 1024, 9369, 224, 32, 32, 4, 136, 4, 0, 0 }, /* 60 Hz */ |
| 125 | { 1408, 1056, 8214, 256, 40, 32, 5, 144, 5, 0, 0 }, /* 60 Hz */ |
| 126 | { 1600, 1200,/*?*/0, 272, 48, 32, 5, 152, 5, 0, 0 }, /* 60 Hz */ |
| 127 | #endif |
| 128 | }; |
| 129 | enum { |
| 130 | FBCON_ROTATE_NONE = 0, |
| 131 | FBCON_ROTATE_CCW = 90, |
| 132 | FBCON_ROTATE_UD = 180, |
| 133 | FBCON_ROTATE_CW = 270 |
| 134 | }; |
| 135 | |
| 136 | #define min(a,b) ((a)<(b)?(a):(b)) |
| 137 | |
| 138 | /* Initialization/Query functions */ |
| 139 | static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat); |
| 140 | static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
| 141 | static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| 142 | #ifdef VGA16_FBCON_SUPPORT |
| 143 | static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| 144 | #endif |
| 145 | static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); |
| 146 | static void FB_VideoQuit(_THIS); |
| 147 | |
| 148 | /* Hardware surface functions */ |
| 149 | static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size); |
| 150 | static void FB_FreeHWSurfaces(_THIS); |
| 151 | static int FB_AllocHWSurface(_THIS, SDL_Surface *surface); |
| 152 | static int FB_LockHWSurface(_THIS, SDL_Surface *surface); |
| 153 | static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface); |
| 154 | static void FB_FreeHWSurface(_THIS, SDL_Surface *surface); |
| 155 | static void FB_WaitVBL(_THIS); |
| 156 | static void FB_WaitIdle(_THIS); |
| 157 | static int FB_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 158 | |
| 159 | /* Internal palette functions */ |
| 160 | static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, |
| 161 | struct fb_var_screeninfo *vinfo); |
| 162 | static void FB_RestorePalette(_THIS); |
| 163 | |
| 164 | /* Shadow buffer functions */ |
| 165 | static FB_bitBlit FB_blit16; |
| 166 | static FB_bitBlit FB_blit16blocked; |
| 167 | |
| 168 | static int SDL_getpagesize(void) |
| 169 | { |
| 170 | #ifdef HAVE_GETPAGESIZE |
| 171 | return getpagesize(); |
| 172 | #elif defined(PAGE_SIZE) |
| 173 | return PAGE_SIZE; |
| 174 | #else |
| 175 | #error Can not determine system page size. |
| 176 | return 4096; /* this is what it USED to be in Linux... */ |
| 177 | #endif |
| 178 | } |
| 179 | |
| 180 | |
| 181 | /* Small wrapper for mmap() so we can play nicely with no-mmu hosts |
| 182 | * (non-mmu hosts disallow the MAP_SHARED flag) */ |
| 183 | |
| 184 | static void *do_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) |
| 185 | { |
| 186 | void *ret; |
| 187 | ret = mmap(start, length, prot, flags, fd, offset); |
| 188 | if ( ret == (char *)-1 && (flags & MAP_SHARED) ) { |
| 189 | ret = mmap(start, length, prot, |
| 190 | (flags & ~MAP_SHARED) | MAP_PRIVATE, fd, offset); |
| 191 | } |
| 192 | return ret; |
| 193 | } |
| 194 | |
| 195 | /* FB driver bootstrap functions */ |
| 196 | |
| 197 | static int FB_Available(void) |
| 198 | { |
| 199 | int console = -1; |
| 200 | /* Added check for /fb/0 (devfs) */ |
| 201 | /* but - use environment variable first... if it fails, still check defaults */ |
| 202 | int idx = 0; |
| 203 | const char *SDL_fbdevs[4] = { NULL, "/dev/fb0", "/dev/fb/0", NULL }; |
| 204 | |
| 205 | SDL_fbdevs[0] = SDL_getenv("SDL_FBDEV"); |
| 206 | if( !SDL_fbdevs[0] ) |
| 207 | idx++; |
| 208 | for( ; SDL_fbdevs[idx]; idx++ ) |
| 209 | { |
| 210 | console = open(SDL_fbdevs[idx], O_RDWR, 0); |
| 211 | if ( console >= 0 ) { |
| 212 | close(console); |
| 213 | break; |
| 214 | } |
| 215 | } |
| 216 | return(console >= 0); |
| 217 | } |
| 218 | |
| 219 | static void FB_DeleteDevice(SDL_VideoDevice *device) |
| 220 | { |
| 221 | SDL_free(device->hidden); |
| 222 | SDL_free(device); |
| 223 | } |
| 224 | |
| 225 | static SDL_VideoDevice *FB_CreateDevice(int devindex) |
| 226 | { |
| 227 | SDL_VideoDevice *this; |
| 228 | |
| 229 | /* Initialize all variables that we clean on shutdown */ |
| 230 | this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 231 | if ( this ) { |
| 232 | SDL_memset(this, 0, (sizeof *this)); |
| 233 | this->hidden = (struct SDL_PrivateVideoData *) |
| 234 | SDL_malloc((sizeof *this->hidden)); |
| 235 | } |
| 236 | if ( (this == NULL) || (this->hidden == NULL) ) { |
| 237 | SDL_OutOfMemory(); |
| 238 | if ( this ) { |
| 239 | SDL_free(this); |
| 240 | } |
| 241 | return(0); |
| 242 | } |
| 243 | SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
| 244 | wait_vbl = FB_WaitVBL; |
| 245 | wait_idle = FB_WaitIdle; |
| 246 | mouse_fd = -1; |
| 247 | keyboard_fd = -1; |
| 248 | |
| 249 | /* Set the function pointers */ |
| 250 | this->VideoInit = FB_VideoInit; |
| 251 | this->ListModes = FB_ListModes; |
| 252 | this->SetVideoMode = FB_SetVideoMode; |
| 253 | this->SetColors = FB_SetColors; |
| 254 | this->UpdateRects = NULL; |
| 255 | this->VideoQuit = FB_VideoQuit; |
| 256 | this->AllocHWSurface = FB_AllocHWSurface; |
| 257 | this->CheckHWBlit = NULL; |
| 258 | this->FillHWRect = NULL; |
| 259 | this->SetHWColorKey = NULL; |
| 260 | this->SetHWAlpha = NULL; |
| 261 | this->LockHWSurface = FB_LockHWSurface; |
| 262 | this->UnlockHWSurface = FB_UnlockHWSurface; |
| 263 | this->FlipHWSurface = FB_FlipHWSurface; |
| 264 | this->FreeHWSurface = FB_FreeHWSurface; |
| 265 | this->SetCaption = NULL; |
| 266 | this->SetIcon = NULL; |
| 267 | this->IconifyWindow = NULL; |
| 268 | this->GrabInput = NULL; |
| 269 | this->GetWMInfo = NULL; |
| 270 | this->InitOSKeymap = FB_InitOSKeymap; |
| 271 | this->PumpEvents = FB_PumpEvents; |
| 272 | |
| 273 | this->free = FB_DeleteDevice; |
| 274 | |
| 275 | return this; |
| 276 | } |
| 277 | |
| 278 | VideoBootStrap FBCON_bootstrap = { |
| 279 | "fbcon", "Linux Framebuffer Console", |
| 280 | FB_Available, FB_CreateDevice |
| 281 | }; |
| 282 | |
| 283 | #define FB_MODES_DB "/etc/fb.modes" |
| 284 | |
| 285 | static int read_fbmodes_line(FILE*f, char* line, int length) |
| 286 | { |
| 287 | int blank; |
| 288 | char* c; |
| 289 | int i; |
| 290 | |
| 291 | blank=0; |
| 292 | /* find a relevant line */ |
| 293 | do |
| 294 | { |
| 295 | if (!fgets(line,length,f)) |
| 296 | return 0; |
| 297 | c=line; |
| 298 | while(((*c=='\t')||(*c==' '))&&(*c!=0)) |
| 299 | c++; |
| 300 | |
| 301 | if ((*c=='\n')||(*c=='#')||(*c==0)) |
| 302 | blank=1; |
| 303 | else |
| 304 | blank=0; |
| 305 | } |
| 306 | while(blank); |
| 307 | /* remove whitespace at the begining of the string */ |
| 308 | i=0; |
| 309 | do |
| 310 | { |
| 311 | line[i]=c[i]; |
| 312 | i++; |
| 313 | } |
| 314 | while(c[i]!=0); |
| 315 | return 1; |
| 316 | } |
| 317 | |
| 318 | static int read_fbmodes_mode(FILE *f, struct fb_var_screeninfo *vinfo) |
| 319 | { |
| 320 | char line[1024]; |
| 321 | char option[256]; |
| 322 | |
| 323 | /* Find a "geometry" */ |
| 324 | do { |
| 325 | if (read_fbmodes_line(f, line, sizeof(line))==0) |
| 326 | return 0; |
| 327 | if (SDL_strncmp(line,"geometry",8)==0) |
| 328 | break; |
| 329 | } |
| 330 | while(1); |
| 331 | |
| 332 | SDL_sscanf(line, "geometry %d %d %d %d %d", &vinfo->xres, &vinfo->yres, |
| 333 | &vinfo->xres_virtual, &vinfo->yres_virtual, &vinfo->bits_per_pixel); |
| 334 | if (read_fbmodes_line(f, line, sizeof(line))==0) |
| 335 | return 0; |
| 336 | |
| 337 | SDL_sscanf(line, "timings %d %d %d %d %d %d %d", &vinfo->pixclock, |
| 338 | &vinfo->left_margin, &vinfo->right_margin, &vinfo->upper_margin, |
| 339 | &vinfo->lower_margin, &vinfo->hsync_len, &vinfo->vsync_len); |
| 340 | |
| 341 | vinfo->sync=0; |
| 342 | vinfo->vmode=FB_VMODE_NONINTERLACED; |
| 343 | |
| 344 | /* Parse misc options */ |
| 345 | do { |
| 346 | if (read_fbmodes_line(f, line, sizeof(line))==0) |
| 347 | return 0; |
| 348 | |
| 349 | if (SDL_strncmp(line,"hsync",5)==0) { |
| 350 | SDL_sscanf(line,"hsync %s",option); |
| 351 | if (SDL_strncmp(option,"high",4)==0) |
| 352 | vinfo->sync |= FB_SYNC_HOR_HIGH_ACT; |
| 353 | } |
| 354 | else if (SDL_strncmp(line,"vsync",5)==0) { |
| 355 | SDL_sscanf(line,"vsync %s",option); |
| 356 | if (SDL_strncmp(option,"high",4)==0) |
| 357 | vinfo->sync |= FB_SYNC_VERT_HIGH_ACT; |
| 358 | } |
| 359 | else if (SDL_strncmp(line,"csync",5)==0) { |
| 360 | SDL_sscanf(line,"csync %s",option); |
| 361 | if (SDL_strncmp(option,"high",4)==0) |
| 362 | vinfo->sync |= FB_SYNC_COMP_HIGH_ACT; |
| 363 | } |
| 364 | else if (SDL_strncmp(line,"extsync",5)==0) { |
| 365 | SDL_sscanf(line,"extsync %s",option); |
| 366 | if (SDL_strncmp(option,"true",4)==0) |
| 367 | vinfo->sync |= FB_SYNC_EXT; |
| 368 | } |
| 369 | else if (SDL_strncmp(line,"laced",5)==0) { |
| 370 | SDL_sscanf(line,"laced %s",option); |
| 371 | if (SDL_strncmp(option,"true",4)==0) |
| 372 | vinfo->vmode |= FB_VMODE_INTERLACED; |
| 373 | } |
| 374 | else if (SDL_strncmp(line,"double",6)==0) { |
| 375 | SDL_sscanf(line,"double %s",option); |
| 376 | if (SDL_strncmp(option,"true",4)==0) |
| 377 | vinfo->vmode |= FB_VMODE_DOUBLE; |
| 378 | } |
| 379 | } |
| 380 | while(SDL_strncmp(line,"endmode",7)!=0); |
| 381 | |
| 382 | return 1; |
| 383 | } |
| 384 | |
| 385 | static int FB_CheckMode(_THIS, struct fb_var_screeninfo *vinfo, |
| 386 | int index, unsigned int *w, unsigned int *h) |
| 387 | { |
| 388 | int mode_okay; |
| 389 | |
| 390 | mode_okay = 0; |
| 391 | vinfo->bits_per_pixel = (index+1)*8; |
| 392 | vinfo->xres = *w; |
| 393 | vinfo->xres_virtual = *w; |
| 394 | vinfo->yres = *h; |
| 395 | vinfo->yres_virtual = *h; |
| 396 | vinfo->activate = FB_ACTIVATE_TEST; |
| 397 | if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, vinfo) == 0 ) { |
| 398 | #ifdef FBCON_DEBUG |
| 399 | fprintf(stderr, "Checked mode %dx%d at %d bpp, got mode %dx%d at %d bpp\n", *w, *h, (index+1)*8, vinfo->xres, vinfo->yres, vinfo->bits_per_pixel); |
| 400 | #endif |
| 401 | if ( (((vinfo->bits_per_pixel+7)/8)-1) == index ) { |
| 402 | *w = vinfo->xres; |
| 403 | *h = vinfo->yres; |
| 404 | mode_okay = 1; |
| 405 | } |
| 406 | } |
| 407 | return mode_okay; |
| 408 | } |
| 409 | |
| 410 | static int FB_AddMode(_THIS, int index, unsigned int w, unsigned int h, int check_timings) |
| 411 | { |
| 412 | SDL_Rect *mode; |
| 413 | int i; |
| 414 | int next_mode; |
| 415 | |
| 416 | /* Check to see if we already have this mode */ |
| 417 | if ( SDL_nummodes[index] > 0 ) { |
| 418 | mode = SDL_modelist[index][SDL_nummodes[index]-1]; |
| 419 | if ( (mode->w == w) && (mode->h == h) ) { |
| 420 | #ifdef FBCON_DEBUG |
| 421 | fprintf(stderr, "We already have mode %dx%d at %d bytes per pixel\n", w, h, index+1); |
| 422 | #endif |
| 423 | return(0); |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | /* Only allow a mode if we have a valid timing for it */ |
| 428 | if ( check_timings ) { |
| 429 | int found_timing = 0; |
| 430 | for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
| 431 | if ( (w == vesa_timings[i].xres) && |
| 432 | (h == vesa_timings[i].yres) && vesa_timings[i].pixclock ) { |
| 433 | found_timing = 1; |
| 434 | break; |
| 435 | } |
| 436 | } |
| 437 | if ( !found_timing ) { |
| 438 | #ifdef FBCON_DEBUG |
| 439 | fprintf(stderr, "No valid timing line for mode %dx%d\n", w, h); |
| 440 | #endif |
| 441 | return(0); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | /* Set up the new video mode rectangle */ |
| 446 | mode = (SDL_Rect *)SDL_malloc(sizeof *mode); |
| 447 | if ( mode == NULL ) { |
| 448 | SDL_OutOfMemory(); |
| 449 | return(-1); |
| 450 | } |
| 451 | mode->x = 0; |
| 452 | mode->y = 0; |
| 453 | mode->w = w; |
| 454 | mode->h = h; |
| 455 | #ifdef FBCON_DEBUG |
| 456 | fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h, index+1); |
| 457 | #endif |
| 458 | |
| 459 | /* Allocate the new list of modes, and fill in the new mode */ |
| 460 | next_mode = SDL_nummodes[index]; |
| 461 | SDL_modelist[index] = (SDL_Rect **) |
| 462 | SDL_realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); |
| 463 | if ( SDL_modelist[index] == NULL ) { |
| 464 | SDL_OutOfMemory(); |
| 465 | SDL_nummodes[index] = 0; |
| 466 | SDL_free(mode); |
| 467 | return(-1); |
| 468 | } |
| 469 | SDL_modelist[index][next_mode] = mode; |
| 470 | SDL_modelist[index][next_mode+1] = NULL; |
| 471 | SDL_nummodes[index]++; |
| 472 | |
| 473 | return(0); |
| 474 | } |
| 475 | |
| 476 | static int cmpmodes(const void *va, const void *vb) |
| 477 | { |
| 478 | const SDL_Rect *a = *(const SDL_Rect**)va; |
| 479 | const SDL_Rect *b = *(const SDL_Rect**)vb; |
| 480 | if ( a->h == b->h ) |
| 481 | return b->w - a->w; |
| 482 | else |
| 483 | return b->h - a->h; |
| 484 | } |
| 485 | |
| 486 | static void FB_SortModes(_THIS) |
| 487 | { |
| 488 | int i; |
| 489 | for ( i=0; i<NUM_MODELISTS; ++i ) { |
| 490 | if ( SDL_nummodes[i] > 0 ) { |
| 491 | SDL_qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); |
| 492 | } |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | static int FB_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 497 | { |
| 498 | const int pagesize = SDL_getpagesize(); |
| 499 | struct fb_fix_screeninfo finfo; |
| 500 | struct fb_var_screeninfo vinfo; |
| 501 | int i, j; |
| 502 | int current_index; |
| 503 | unsigned int current_w; |
| 504 | unsigned int current_h; |
| 505 | const char *SDL_fbdev; |
| 506 | const char *rotation; |
| 507 | FILE *modesdb; |
| 508 | |
| 509 | /* Initialize the library */ |
| 510 | SDL_fbdev = SDL_getenv("SDL_FBDEV"); |
| 511 | if ( SDL_fbdev == NULL ) { |
| 512 | SDL_fbdev = "/dev/fb0"; |
| 513 | } |
| 514 | console_fd = open(SDL_fbdev, O_RDWR, 0); |
| 515 | if ( console_fd < 0 ) { |
| 516 | SDL_SetError("Unable to open %s", SDL_fbdev); |
| 517 | return(-1); |
| 518 | } |
| 519 | |
| 520 | #if !SDL_THREADS_DISABLED |
| 521 | /* Create the hardware surface lock mutex */ |
| 522 | hw_lock = SDL_CreateMutex(); |
| 523 | if ( hw_lock == NULL ) { |
| 524 | SDL_SetError("Unable to create lock mutex"); |
| 525 | FB_VideoQuit(this); |
| 526 | return(-1); |
| 527 | } |
| 528 | #endif |
| 529 | |
| 530 | /* Get the type of video hardware */ |
| 531 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { |
| 532 | SDL_SetError("Couldn't get console hardware info"); |
| 533 | FB_VideoQuit(this); |
| 534 | return(-1); |
| 535 | } |
| 536 | switch (finfo.type) { |
| 537 | case FB_TYPE_PACKED_PIXELS: |
| 538 | /* Supported, no worries.. */ |
| 539 | break; |
| 540 | #ifdef VGA16_FBCON_SUPPORT |
| 541 | case FB_TYPE_VGA_PLANES: |
| 542 | /* VGA16 is supported, but that's it */ |
| 543 | if ( finfo.type_aux == FB_AUX_VGA_PLANES_VGA4 ) { |
| 544 | if ( ioperm(0x3b4, 0x3df - 0x3b4 + 1, 1) < 0 ) { |
| 545 | SDL_SetError("No I/O port permissions"); |
| 546 | FB_VideoQuit(this); |
| 547 | return(-1); |
| 548 | } |
| 549 | this->SetVideoMode = FB_SetVGA16Mode; |
| 550 | break; |
| 551 | } |
| 552 | /* Fall through to unsupported case */ |
| 553 | #endif /* VGA16_FBCON_SUPPORT */ |
| 554 | default: |
| 555 | SDL_SetError("Unsupported console hardware"); |
| 556 | FB_VideoQuit(this); |
| 557 | return(-1); |
| 558 | } |
| 559 | switch (finfo.visual) { |
| 560 | case FB_VISUAL_TRUECOLOR: |
| 561 | case FB_VISUAL_PSEUDOCOLOR: |
| 562 | case FB_VISUAL_STATIC_PSEUDOCOLOR: |
| 563 | case FB_VISUAL_DIRECTCOLOR: |
| 564 | break; |
| 565 | default: |
| 566 | SDL_SetError("Unsupported console hardware"); |
| 567 | FB_VideoQuit(this); |
| 568 | return(-1); |
| 569 | } |
| 570 | |
| 571 | /* Check if the user wants to disable hardware acceleration */ |
| 572 | { const char *fb_accel; |
| 573 | fb_accel = SDL_getenv("SDL_FBACCEL"); |
| 574 | if ( fb_accel ) { |
| 575 | finfo.accel = SDL_atoi(fb_accel); |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | /* Memory map the device, compensating for buggy PPC mmap() */ |
| 580 | mapped_offset = (((long)finfo.smem_start) - |
| 581 | (((long)finfo.smem_start)&~(pagesize-1))); |
| 582 | mapped_memlen = finfo.smem_len+mapped_offset; |
| 583 | mapped_mem = do_mmap(NULL, mapped_memlen, |
| 584 | PROT_READ|PROT_WRITE, MAP_SHARED, console_fd, 0); |
| 585 | if ( mapped_mem == (char *)-1 ) { |
| 586 | SDL_SetError("Unable to memory map the video hardware"); |
| 587 | mapped_mem = NULL; |
| 588 | FB_VideoQuit(this); |
| 589 | return(-1); |
| 590 | } |
| 591 | |
| 592 | /* Determine the current screen depth */ |
| 593 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { |
| 594 | SDL_SetError("Couldn't get console pixel format"); |
| 595 | FB_VideoQuit(this); |
| 596 | return(-1); |
| 597 | } |
| 598 | vformat->BitsPerPixel = vinfo.bits_per_pixel; |
| 599 | if ( vformat->BitsPerPixel < 8 ) { |
| 600 | /* Assuming VGA16, we handle this via a shadow framebuffer */ |
| 601 | vformat->BitsPerPixel = 8; |
| 602 | } |
| 603 | for ( i=0; i<vinfo.red.length; ++i ) { |
| 604 | vformat->Rmask <<= 1; |
| 605 | vformat->Rmask |= (0x00000001<<vinfo.red.offset); |
| 606 | } |
| 607 | for ( i=0; i<vinfo.green.length; ++i ) { |
| 608 | vformat->Gmask <<= 1; |
| 609 | vformat->Gmask |= (0x00000001<<vinfo.green.offset); |
| 610 | } |
| 611 | for ( i=0; i<vinfo.blue.length; ++i ) { |
| 612 | vformat->Bmask <<= 1; |
| 613 | vformat->Bmask |= (0x00000001<<vinfo.blue.offset); |
| 614 | } |
| 615 | saved_vinfo = vinfo; |
| 616 | |
| 617 | /* Save hardware palette, if needed */ |
| 618 | FB_SavePalette(this, &finfo, &vinfo); |
| 619 | |
| 620 | /* If the I/O registers are available, memory map them so we |
| 621 | can take advantage of any supported hardware acceleration. |
| 622 | */ |
| 623 | vinfo.accel_flags = 0; /* Temporarily reserve registers */ |
| 624 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo); |
| 625 | if ( finfo.accel && finfo.mmio_len ) { |
| 626 | mapped_iolen = finfo.mmio_len; |
| 627 | mapped_io = do_mmap(NULL, mapped_iolen, PROT_READ|PROT_WRITE, |
| 628 | MAP_SHARED, console_fd, mapped_memlen); |
| 629 | if ( mapped_io == (char *)-1 ) { |
| 630 | /* Hmm, failed to memory map I/O registers */ |
| 631 | mapped_io = NULL; |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | rotate = FBCON_ROTATE_NONE; |
| 636 | rotation = SDL_getenv("SDL_VIDEO_FBCON_ROTATION"); |
| 637 | if (rotation != NULL) { |
| 638 | if (SDL_strlen(rotation) == 0) { |
| 639 | shadow_fb = 0; |
| 640 | rotate = FBCON_ROTATE_NONE; |
| 641 | #ifdef FBCON_DEBUG |
| 642 | printf("Not rotating, no shadow\n"); |
| 643 | #endif |
| 644 | } else if (!SDL_strcmp(rotation, "NONE")) { |
| 645 | shadow_fb = 1; |
| 646 | rotate = FBCON_ROTATE_NONE; |
| 647 | #ifdef FBCON_DEBUG |
| 648 | printf("Not rotating, but still using shadow\n"); |
| 649 | #endif |
| 650 | } else if (!SDL_strcmp(rotation, "CW")) { |
| 651 | shadow_fb = 1; |
| 652 | rotate = FBCON_ROTATE_CW; |
| 653 | #ifdef FBCON_DEBUG |
| 654 | printf("Rotating screen clockwise\n"); |
| 655 | #endif |
| 656 | } else if (!SDL_strcmp(rotation, "CCW")) { |
| 657 | shadow_fb = 1; |
| 658 | rotate = FBCON_ROTATE_CCW; |
| 659 | #ifdef FBCON_DEBUG |
| 660 | printf("Rotating screen counter clockwise\n"); |
| 661 | #endif |
| 662 | } else if (!SDL_strcmp(rotation, "UD")) { |
| 663 | shadow_fb = 1; |
| 664 | rotate = FBCON_ROTATE_UD; |
| 665 | #ifdef FBCON_DEBUG |
| 666 | printf("Rotating screen upside down\n"); |
| 667 | #endif |
| 668 | } else { |
| 669 | SDL_SetError("\"%s\" is not a valid value for " |
| 670 | "SDL_VIDEO_FBCON_ROTATION", rotation); |
| 671 | return(-1); |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { |
| 676 | current_w = vinfo.yres; |
| 677 | current_h = vinfo.xres; |
| 678 | } else { |
| 679 | current_w = vinfo.xres; |
| 680 | current_h = vinfo.yres; |
| 681 | } |
| 682 | |
| 683 | /* Query for the list of available video modes */ |
| 684 | current_index = ((vinfo.bits_per_pixel+7)/8)-1; |
| 685 | modesdb = fopen(FB_MODES_DB, "r"); |
| 686 | for ( i=0; i<NUM_MODELISTS; ++i ) { |
| 687 | SDL_nummodes[i] = 0; |
| 688 | SDL_modelist[i] = NULL; |
| 689 | } |
| 690 | if ( SDL_getenv("SDL_FB_BROKEN_MODES") != NULL ) { |
| 691 | FB_AddMode(this, current_index, current_w, current_h, 0); |
| 692 | } else if(modesdb) { |
| 693 | while ( read_fbmodes_mode(modesdb, &vinfo) ) { |
| 694 | for ( i=0; i<NUM_MODELISTS; ++i ) { |
| 695 | unsigned int w, h; |
| 696 | |
| 697 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { |
| 698 | w = vinfo.yres; |
| 699 | h = vinfo.xres; |
| 700 | } else { |
| 701 | w = vinfo.xres; |
| 702 | h = vinfo.yres; |
| 703 | } |
| 704 | /* See if we are querying for the current mode */ |
| 705 | if ( i == current_index ) { |
| 706 | if ( (current_w > w) || (current_h > h) ) { |
| 707 | /* Only check once */ |
| 708 | FB_AddMode(this, i, current_w, current_h, 0); |
| 709 | current_index = -1; |
| 710 | } |
| 711 | } |
| 712 | if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
| 713 | FB_AddMode(this, i, w, h, 0); |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | fclose(modesdb); |
| 718 | FB_SortModes(this); |
| 719 | } else { |
| 720 | for ( i=0; i<NUM_MODELISTS; ++i ) { |
| 721 | for ( j=0; j<(sizeof(checkres)/sizeof(checkres[0])); ++j ) { |
| 722 | unsigned int w, h; |
| 723 | |
| 724 | if (rotate == FBCON_ROTATE_CW || rotate == FBCON_ROTATE_CCW) { |
| 725 | w = checkres[j].h; |
| 726 | h = checkres[j].w; |
| 727 | } else { |
| 728 | w = checkres[j].w; |
| 729 | h = checkres[j].h; |
| 730 | } |
| 731 | /* See if we are querying for the current mode */ |
| 732 | if ( i == current_index ) { |
| 733 | if ( (current_w > w) || (current_h > h) ) { |
| 734 | /* Only check once */ |
| 735 | FB_AddMode(this, i, current_w, current_h, 0); |
| 736 | current_index = -1; |
| 737 | } |
| 738 | } |
| 739 | if ( FB_CheckMode(this, &vinfo, i, &w, &h) ) { |
| 740 | FB_AddMode(this, i, w, h, 1); |
| 741 | } |
| 742 | } |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | this->info.current_w = current_w; |
| 747 | this->info.current_h = current_h; |
| 748 | this->info.wm_available = 0; |
| 749 | this->info.hw_available = !shadow_fb; |
| 750 | this->info.video_mem = shadow_fb ? 0 : finfo.smem_len/1024; |
| 751 | /* Fill in our hardware acceleration capabilities */ |
| 752 | if ( mapped_io ) { |
| 753 | switch (finfo.accel) { |
| 754 | case FB_ACCEL_MATROX_MGA2064W: |
| 755 | case FB_ACCEL_MATROX_MGA1064SG: |
| 756 | case FB_ACCEL_MATROX_MGA2164W: |
| 757 | case FB_ACCEL_MATROX_MGA2164W_AGP: |
| 758 | case FB_ACCEL_MATROX_MGAG100: |
| 759 | /*case FB_ACCEL_MATROX_MGAG200: G200 acceleration broken! */ |
| 760 | case FB_ACCEL_MATROX_MGAG400: |
| 761 | #ifdef FBACCEL_DEBUG |
| 762 | printf("Matrox hardware accelerator!\n"); |
| 763 | #endif |
| 764 | FB_MatroxAccel(this, finfo.accel); |
| 765 | break; |
| 766 | case FB_ACCEL_3DFX_BANSHEE: |
| 767 | #ifdef FBACCEL_DEBUG |
| 768 | printf("3DFX hardware accelerator!\n"); |
| 769 | #endif |
| 770 | FB_3DfxAccel(this, finfo.accel); |
| 771 | break; |
| 772 | case FB_ACCEL_NV3: |
| 773 | case FB_ACCEL_NV4: |
| 774 | #ifdef FBACCEL_DEBUG |
| 775 | printf("NVidia hardware accelerator!\n"); |
| 776 | #endif |
| 777 | FB_RivaAccel(this, finfo.accel); |
| 778 | break; |
| 779 | default: |
| 780 | #ifdef FBACCEL_DEBUG |
| 781 | printf("Unknown hardware accelerator.\n"); |
| 782 | #endif |
| 783 | break; |
| 784 | } |
| 785 | } |
| 786 | |
| 787 | if (shadow_fb) { |
| 788 | shadow_mem = (char *)SDL_malloc(mapped_memlen); |
| 789 | if (shadow_mem == NULL) { |
| 790 | SDL_SetError("No memory for shadow"); |
| 791 | return (-1); |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | /* Enable mouse and keyboard support */ |
| 796 | if ( FB_OpenKeyboard(this) < 0 ) { |
| 797 | FB_VideoQuit(this); |
| 798 | return(-1); |
| 799 | } |
| 800 | if ( FB_OpenMouse(this) < 0 ) { |
| 801 | const char *sdl_nomouse; |
| 802 | |
| 803 | sdl_nomouse = SDL_getenv("SDL_NOMOUSE"); |
| 804 | if ( ! sdl_nomouse ) { |
| 805 | SDL_SetError("Unable to open mouse"); |
| 806 | FB_VideoQuit(this); |
| 807 | return(-1); |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | /* We're done! */ |
| 812 | return(0); |
| 813 | } |
| 814 | |
| 815 | static SDL_Rect **FB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| 816 | { |
| 817 | return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); |
| 818 | } |
| 819 | |
| 820 | /* Various screen update functions available */ |
| 821 | static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); |
| 822 | #ifdef VGA16_FBCON_SUPPORT |
| 823 | static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects); |
| 824 | #endif |
| 825 | |
| 826 | #ifdef FBCON_DEBUG |
| 827 | static void print_vinfo(struct fb_var_screeninfo *vinfo) |
| 828 | { |
| 829 | fprintf(stderr, "Printing vinfo:\n"); |
| 830 | fprintf(stderr, "\txres: %d\n", vinfo->xres); |
| 831 | fprintf(stderr, "\tyres: %d\n", vinfo->yres); |
| 832 | fprintf(stderr, "\txres_virtual: %d\n", vinfo->xres_virtual); |
| 833 | fprintf(stderr, "\tyres_virtual: %d\n", vinfo->yres_virtual); |
| 834 | fprintf(stderr, "\txoffset: %d\n", vinfo->xoffset); |
| 835 | fprintf(stderr, "\tyoffset: %d\n", vinfo->yoffset); |
| 836 | fprintf(stderr, "\tbits_per_pixel: %d\n", vinfo->bits_per_pixel); |
| 837 | fprintf(stderr, "\tgrayscale: %d\n", vinfo->grayscale); |
| 838 | fprintf(stderr, "\tnonstd: %d\n", vinfo->nonstd); |
| 839 | fprintf(stderr, "\tactivate: %d\n", vinfo->activate); |
| 840 | fprintf(stderr, "\theight: %d\n", vinfo->height); |
| 841 | fprintf(stderr, "\twidth: %d\n", vinfo->width); |
| 842 | fprintf(stderr, "\taccel_flags: %d\n", vinfo->accel_flags); |
| 843 | fprintf(stderr, "\tpixclock: %d\n", vinfo->pixclock); |
| 844 | fprintf(stderr, "\tleft_margin: %d\n", vinfo->left_margin); |
| 845 | fprintf(stderr, "\tright_margin: %d\n", vinfo->right_margin); |
| 846 | fprintf(stderr, "\tupper_margin: %d\n", vinfo->upper_margin); |
| 847 | fprintf(stderr, "\tlower_margin: %d\n", vinfo->lower_margin); |
| 848 | fprintf(stderr, "\thsync_len: %d\n", vinfo->hsync_len); |
| 849 | fprintf(stderr, "\tvsync_len: %d\n", vinfo->vsync_len); |
| 850 | fprintf(stderr, "\tsync: %d\n", vinfo->sync); |
| 851 | fprintf(stderr, "\tvmode: %d\n", vinfo->vmode); |
| 852 | fprintf(stderr, "\tred: %d/%d\n", vinfo->red.length, vinfo->red.offset); |
| 853 | fprintf(stderr, "\tgreen: %d/%d\n", vinfo->green.length, vinfo->green.offset); |
| 854 | fprintf(stderr, "\tblue: %d/%d\n", vinfo->blue.length, vinfo->blue.offset); |
| 855 | fprintf(stderr, "\talpha: %d/%d\n", vinfo->transp.length, vinfo->transp.offset); |
| 856 | } |
| 857 | static void print_finfo(struct fb_fix_screeninfo *finfo) |
| 858 | { |
| 859 | fprintf(stderr, "Printing finfo:\n"); |
| 860 | fprintf(stderr, "\tsmem_start = %p\n", (char *)finfo->smem_start); |
| 861 | fprintf(stderr, "\tsmem_len = %d\n", finfo->smem_len); |
| 862 | fprintf(stderr, "\ttype = %d\n", finfo->type); |
| 863 | fprintf(stderr, "\ttype_aux = %d\n", finfo->type_aux); |
| 864 | fprintf(stderr, "\tvisual = %d\n", finfo->visual); |
| 865 | fprintf(stderr, "\txpanstep = %d\n", finfo->xpanstep); |
| 866 | fprintf(stderr, "\typanstep = %d\n", finfo->ypanstep); |
| 867 | fprintf(stderr, "\tywrapstep = %d\n", finfo->ywrapstep); |
| 868 | fprintf(stderr, "\tline_length = %d\n", finfo->line_length); |
| 869 | fprintf(stderr, "\tmmio_start = %p\n", (char *)finfo->mmio_start); |
| 870 | fprintf(stderr, "\tmmio_len = %d\n", finfo->mmio_len); |
| 871 | fprintf(stderr, "\taccel = %d\n", finfo->accel); |
| 872 | } |
| 873 | #endif |
| 874 | |
| 875 | static int choose_fbmodes_mode(struct fb_var_screeninfo *vinfo) |
| 876 | { |
| 877 | int matched; |
| 878 | FILE *modesdb; |
| 879 | struct fb_var_screeninfo cinfo; |
| 880 | |
| 881 | matched = 0; |
| 882 | modesdb = fopen(FB_MODES_DB, "r"); |
| 883 | if ( modesdb ) { |
| 884 | /* Parse the mode definition file */ |
| 885 | while ( read_fbmodes_mode(modesdb, &cinfo) ) { |
| 886 | if ( (vinfo->xres == cinfo.xres && vinfo->yres == cinfo.yres) && |
| 887 | (!matched || (vinfo->bits_per_pixel == cinfo.bits_per_pixel)) ) { |
| 888 | vinfo->pixclock = cinfo.pixclock; |
| 889 | vinfo->left_margin = cinfo.left_margin; |
| 890 | vinfo->right_margin = cinfo.right_margin; |
| 891 | vinfo->upper_margin = cinfo.upper_margin; |
| 892 | vinfo->lower_margin = cinfo.lower_margin; |
| 893 | vinfo->hsync_len = cinfo.hsync_len; |
| 894 | vinfo->vsync_len = cinfo.vsync_len; |
| 895 | if ( matched ) { |
| 896 | break; |
| 897 | } |
| 898 | matched = 1; |
| 899 | } |
| 900 | } |
| 901 | fclose(modesdb); |
| 902 | } |
| 903 | return(matched); |
| 904 | } |
| 905 | |
| 906 | static int choose_vesa_mode(struct fb_var_screeninfo *vinfo) |
| 907 | { |
| 908 | int matched; |
| 909 | int i; |
| 910 | |
| 911 | /* Check for VESA timings */ |
| 912 | matched = 0; |
| 913 | for ( i=0; i<(sizeof(vesa_timings)/sizeof(vesa_timings[0])); ++i ) { |
| 914 | if ( (vinfo->xres == vesa_timings[i].xres) && |
| 915 | (vinfo->yres == vesa_timings[i].yres) ) { |
| 916 | #ifdef FBCON_DEBUG |
| 917 | fprintf(stderr, "Using VESA timings for %dx%d\n", |
| 918 | vinfo->xres, vinfo->yres); |
| 919 | #endif |
| 920 | if ( vesa_timings[i].pixclock ) { |
| 921 | vinfo->pixclock = vesa_timings[i].pixclock; |
| 922 | } |
| 923 | vinfo->left_margin = vesa_timings[i].left; |
| 924 | vinfo->right_margin = vesa_timings[i].right; |
| 925 | vinfo->upper_margin = vesa_timings[i].upper; |
| 926 | vinfo->lower_margin = vesa_timings[i].lower; |
| 927 | vinfo->hsync_len = vesa_timings[i].hslen; |
| 928 | vinfo->vsync_len = vesa_timings[i].vslen; |
| 929 | vinfo->sync = vesa_timings[i].sync; |
| 930 | vinfo->vmode = vesa_timings[i].vmode; |
| 931 | matched = 1; |
| 932 | break; |
| 933 | } |
| 934 | } |
| 935 | return(matched); |
| 936 | } |
| 937 | |
| 938 | #ifdef VGA16_FBCON_SUPPORT |
| 939 | static SDL_Surface *FB_SetVGA16Mode(_THIS, SDL_Surface *current, |
| 940 | int width, int height, int bpp, Uint32 flags) |
| 941 | { |
| 942 | struct fb_fix_screeninfo finfo; |
| 943 | struct fb_var_screeninfo vinfo; |
| 944 | |
| 945 | /* Set the terminal into graphics mode */ |
| 946 | if ( FB_EnterGraphicsMode(this) < 0 ) { |
| 947 | return(NULL); |
| 948 | } |
| 949 | |
| 950 | /* Restore the original palette */ |
| 951 | FB_RestorePalette(this); |
| 952 | |
| 953 | /* Set the video mode and get the final screen format */ |
| 954 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { |
| 955 | SDL_SetError("Couldn't get console screen info"); |
| 956 | return(NULL); |
| 957 | } |
| 958 | cache_vinfo = vinfo; |
| 959 | #ifdef FBCON_DEBUG |
| 960 | fprintf(stderr, "Printing actual vinfo:\n"); |
| 961 | print_vinfo(&vinfo); |
| 962 | #endif |
| 963 | if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { |
| 964 | return(NULL); |
| 965 | } |
| 966 | current->format->palette->ncolors = 16; |
| 967 | |
| 968 | /* Get the fixed information about the console hardware. |
| 969 | This is necessary since finfo.line_length changes. |
| 970 | */ |
| 971 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { |
| 972 | SDL_SetError("Couldn't get console hardware info"); |
| 973 | return(NULL); |
| 974 | } |
| 975 | #ifdef FBCON_DEBUG |
| 976 | fprintf(stderr, "Printing actual finfo:\n"); |
| 977 | print_finfo(&finfo); |
| 978 | #endif |
| 979 | |
| 980 | /* Save hardware palette, if needed */ |
| 981 | FB_SavePalette(this, &finfo, &vinfo); |
| 982 | |
| 983 | /* Set up the new mode framebuffer */ |
| 984 | current->flags = SDL_FULLSCREEN; |
| 985 | current->w = vinfo.xres; |
| 986 | current->h = vinfo.yres; |
| 987 | current->pitch = current->w; |
| 988 | current->pixels = SDL_malloc(current->h*current->pitch); |
| 989 | |
| 990 | /* Set the update rectangle function */ |
| 991 | this->UpdateRects = FB_VGA16Update; |
| 992 | |
| 993 | /* We're done */ |
| 994 | return(current); |
| 995 | } |
| 996 | #endif /* VGA16_FBCON_SUPPORT */ |
| 997 | |
| 998 | static SDL_Surface *FB_SetVideoMode(_THIS, SDL_Surface *current, |
| 999 | int width, int height, int bpp, Uint32 flags) |
| 1000 | { |
| 1001 | struct fb_fix_screeninfo finfo; |
| 1002 | struct fb_var_screeninfo vinfo; |
| 1003 | int i; |
| 1004 | Uint32 Rmask; |
| 1005 | Uint32 Gmask; |
| 1006 | Uint32 Bmask; |
| 1007 | char *surfaces_mem; |
| 1008 | int surfaces_len; |
| 1009 | |
| 1010 | /* Set the terminal into graphics mode */ |
| 1011 | if ( FB_EnterGraphicsMode(this) < 0 ) { |
| 1012 | return(NULL); |
| 1013 | } |
| 1014 | |
| 1015 | /* Restore the original palette */ |
| 1016 | FB_RestorePalette(this); |
| 1017 | |
| 1018 | /* Set the video mode and get the final screen format */ |
| 1019 | if ( ioctl(console_fd, FBIOGET_VSCREENINFO, &vinfo) < 0 ) { |
| 1020 | SDL_SetError("Couldn't get console screen info"); |
| 1021 | return(NULL); |
| 1022 | } |
| 1023 | #ifdef FBCON_DEBUG |
| 1024 | fprintf(stderr, "Printing original vinfo:\n"); |
| 1025 | print_vinfo(&vinfo); |
| 1026 | #endif |
| 1027 | /* Do not use double buffering with shadow buffer */ |
| 1028 | if (shadow_fb) { |
| 1029 | flags &= ~SDL_DOUBLEBUF; |
| 1030 | } |
| 1031 | |
| 1032 | if ( (vinfo.xres != width) || (vinfo.yres != height) || |
| 1033 | (vinfo.bits_per_pixel != bpp) || (flags & SDL_DOUBLEBUF) ) { |
| 1034 | vinfo.activate = FB_ACTIVATE_NOW; |
| 1035 | vinfo.accel_flags = 0; |
| 1036 | vinfo.bits_per_pixel = bpp; |
| 1037 | vinfo.xres = width; |
| 1038 | vinfo.xres_virtual = width; |
| 1039 | vinfo.yres = height; |
| 1040 | if ( flags & SDL_DOUBLEBUF ) { |
| 1041 | vinfo.yres_virtual = height*2; |
| 1042 | } else { |
| 1043 | vinfo.yres_virtual = height; |
| 1044 | } |
| 1045 | vinfo.xoffset = 0; |
| 1046 | vinfo.yoffset = 0; |
| 1047 | vinfo.red.length = vinfo.red.offset = 0; |
| 1048 | vinfo.green.length = vinfo.green.offset = 0; |
| 1049 | vinfo.blue.length = vinfo.blue.offset = 0; |
| 1050 | vinfo.transp.length = vinfo.transp.offset = 0; |
| 1051 | if ( ! choose_fbmodes_mode(&vinfo) ) { |
| 1052 | choose_vesa_mode(&vinfo); |
| 1053 | } |
| 1054 | #ifdef FBCON_DEBUG |
| 1055 | fprintf(stderr, "Printing wanted vinfo:\n"); |
| 1056 | print_vinfo(&vinfo); |
| 1057 | #endif |
| 1058 | if ( !shadow_fb && |
| 1059 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { |
| 1060 | vinfo.yres_virtual = height; |
| 1061 | if ( ioctl(console_fd, FBIOPUT_VSCREENINFO, &vinfo) < 0 ) { |
| 1062 | SDL_SetError("Couldn't set console screen info"); |
| 1063 | return(NULL); |
| 1064 | } |
| 1065 | } |
| 1066 | } else { |
| 1067 | int maxheight; |
| 1068 | |
| 1069 | /* Figure out how much video memory is available */ |
| 1070 | if ( flags & SDL_DOUBLEBUF ) { |
| 1071 | maxheight = height*2; |
| 1072 | } else { |
| 1073 | maxheight = height; |
| 1074 | } |
| 1075 | if ( vinfo.yres_virtual > maxheight ) { |
| 1076 | vinfo.yres_virtual = maxheight; |
| 1077 | } |
| 1078 | } |
| 1079 | cache_vinfo = vinfo; |
| 1080 | #ifdef FBCON_DEBUG |
| 1081 | fprintf(stderr, "Printing actual vinfo:\n"); |
| 1082 | print_vinfo(&vinfo); |
| 1083 | #endif |
| 1084 | Rmask = 0; |
| 1085 | for ( i=0; i<vinfo.red.length; ++i ) { |
| 1086 | Rmask <<= 1; |
| 1087 | Rmask |= (0x00000001<<vinfo.red.offset); |
| 1088 | } |
| 1089 | Gmask = 0; |
| 1090 | for ( i=0; i<vinfo.green.length; ++i ) { |
| 1091 | Gmask <<= 1; |
| 1092 | Gmask |= (0x00000001<<vinfo.green.offset); |
| 1093 | } |
| 1094 | Bmask = 0; |
| 1095 | for ( i=0; i<vinfo.blue.length; ++i ) { |
| 1096 | Bmask <<= 1; |
| 1097 | Bmask |= (0x00000001<<vinfo.blue.offset); |
| 1098 | } |
| 1099 | if ( ! SDL_ReallocFormat(current, vinfo.bits_per_pixel, |
| 1100 | Rmask, Gmask, Bmask, 0) ) { |
| 1101 | return(NULL); |
| 1102 | } |
| 1103 | |
| 1104 | /* Get the fixed information about the console hardware. |
| 1105 | This is necessary since finfo.line_length changes. |
| 1106 | */ |
| 1107 | if ( ioctl(console_fd, FBIOGET_FSCREENINFO, &finfo) < 0 ) { |
| 1108 | SDL_SetError("Couldn't get console hardware info"); |
| 1109 | return(NULL); |
| 1110 | } |
| 1111 | |
| 1112 | /* Save hardware palette, if needed */ |
| 1113 | FB_SavePalette(this, &finfo, &vinfo); |
| 1114 | |
| 1115 | if (shadow_fb) { |
| 1116 | if (vinfo.bits_per_pixel == 16) { |
| 1117 | blitFunc = (rotate == FBCON_ROTATE_NONE || |
| 1118 | rotate == FBCON_ROTATE_UD) ? |
| 1119 | FB_blit16 : FB_blit16blocked; |
| 1120 | } else { |
| 1121 | #ifdef FBCON_DEBUG |
| 1122 | fprintf(stderr, "Init vinfo:\n"); |
| 1123 | print_vinfo(&vinfo); |
| 1124 | #endif |
| 1125 | SDL_SetError("Using software buffer, but no blitter " |
| 1126 | "function is available for %d bpp.", |
| 1127 | vinfo.bits_per_pixel); |
| 1128 | return(NULL); |
| 1129 | } |
| 1130 | } |
| 1131 | |
| 1132 | /* Set up the new mode framebuffer */ |
| 1133 | current->flags &= SDL_FULLSCREEN; |
| 1134 | if (shadow_fb) { |
| 1135 | current->flags |= SDL_SWSURFACE; |
| 1136 | } else { |
| 1137 | current->flags |= SDL_HWSURFACE; |
| 1138 | } |
| 1139 | current->w = vinfo.xres; |
| 1140 | current->h = vinfo.yres; |
| 1141 | if (shadow_fb) { |
| 1142 | current->pitch = current->w * ((vinfo.bits_per_pixel + 7) / 8); |
| 1143 | current->pixels = shadow_mem; |
| 1144 | physlinebytes = finfo.line_length; |
| 1145 | } else { |
| 1146 | current->pitch = finfo.line_length; |
| 1147 | current->pixels = mapped_mem+mapped_offset; |
| 1148 | } |
| 1149 | |
| 1150 | /* Set up the information for hardware surfaces */ |
| 1151 | surfaces_mem = (char *)current->pixels + |
| 1152 | vinfo.yres_virtual*current->pitch; |
| 1153 | surfaces_len = (shadow_fb) ? |
| 1154 | 0 : (mapped_memlen-(surfaces_mem-mapped_mem)); |
| 1155 | |
| 1156 | FB_FreeHWSurfaces(this); |
| 1157 | FB_InitHWSurfaces(this, current, surfaces_mem, surfaces_len); |
| 1158 | |
| 1159 | /* Let the application know we have a hardware palette */ |
| 1160 | switch (finfo.visual) { |
| 1161 | case FB_VISUAL_PSEUDOCOLOR: |
| 1162 | current->flags |= SDL_HWPALETTE; |
| 1163 | break; |
| 1164 | default: |
| 1165 | break; |
| 1166 | } |
| 1167 | |
| 1168 | /* Update for double-buffering, if we can */ |
| 1169 | if ( flags & SDL_DOUBLEBUF ) { |
| 1170 | if ( vinfo.yres_virtual == (height*2) ) { |
| 1171 | current->flags |= SDL_DOUBLEBUF; |
| 1172 | flip_page = 0; |
| 1173 | flip_address[0] = (char *)current->pixels; |
| 1174 | flip_address[1] = (char *)current->pixels+ |
| 1175 | current->h*current->pitch; |
| 1176 | this->screen = current; |
| 1177 | FB_FlipHWSurface(this, current); |
| 1178 | this->screen = NULL; |
| 1179 | } |
| 1180 | } |
| 1181 | |
| 1182 | /* Set the update rectangle function */ |
| 1183 | this->UpdateRects = FB_DirectUpdate; |
| 1184 | |
| 1185 | /* We're done */ |
| 1186 | return(current); |
| 1187 | } |
| 1188 | |
| 1189 | #ifdef FBCON_DEBUG |
| 1190 | void FB_DumpHWSurfaces(_THIS) |
| 1191 | { |
| 1192 | vidmem_bucket *bucket; |
| 1193 | |
| 1194 | printf("Memory left: %d (%d total)\n", surfaces_memleft, surfaces_memtotal); |
| 1195 | printf("\n"); |
| 1196 | printf(" Base Size\n"); |
| 1197 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
| 1198 | printf("Bucket: %p, %d (%s)\n", bucket->base, bucket->size, bucket->used ? "used" : "free"); |
| 1199 | if ( bucket->prev ) { |
| 1200 | if ( bucket->base != bucket->prev->base+bucket->prev->size ) { |
| 1201 | printf("Warning, corrupt bucket list! (prev)\n"); |
| 1202 | } |
| 1203 | } else { |
| 1204 | if ( bucket != &surfaces ) { |
| 1205 | printf("Warning, corrupt bucket list! (!prev)\n"); |
| 1206 | } |
| 1207 | } |
| 1208 | if ( bucket->next ) { |
| 1209 | if ( bucket->next->base != bucket->base+bucket->size ) { |
| 1210 | printf("Warning, corrupt bucket list! (next)\n"); |
| 1211 | } |
| 1212 | } |
| 1213 | } |
| 1214 | printf("\n"); |
| 1215 | } |
| 1216 | #endif |
| 1217 | |
| 1218 | static int FB_InitHWSurfaces(_THIS, SDL_Surface *screen, char *base, int size) |
| 1219 | { |
| 1220 | vidmem_bucket *bucket; |
| 1221 | |
| 1222 | surfaces_memtotal = size; |
| 1223 | surfaces_memleft = size; |
| 1224 | |
| 1225 | if ( surfaces_memleft > 0 ) { |
| 1226 | bucket = (vidmem_bucket *)SDL_malloc(sizeof(*bucket)); |
| 1227 | if ( bucket == NULL ) { |
| 1228 | SDL_OutOfMemory(); |
| 1229 | return(-1); |
| 1230 | } |
| 1231 | bucket->prev = &surfaces; |
| 1232 | bucket->used = 0; |
| 1233 | bucket->dirty = 0; |
| 1234 | bucket->base = base; |
| 1235 | bucket->size = size; |
| 1236 | bucket->next = NULL; |
| 1237 | } else { |
| 1238 | bucket = NULL; |
| 1239 | } |
| 1240 | |
| 1241 | surfaces.prev = NULL; |
| 1242 | surfaces.used = 1; |
| 1243 | surfaces.dirty = 0; |
| 1244 | surfaces.base = screen->pixels; |
| 1245 | surfaces.size = (unsigned int)((long)base - (long)surfaces.base); |
| 1246 | surfaces.next = bucket; |
| 1247 | screen->hwdata = (struct private_hwdata *)&surfaces; |
| 1248 | return(0); |
| 1249 | } |
| 1250 | static void FB_FreeHWSurfaces(_THIS) |
| 1251 | { |
| 1252 | vidmem_bucket *bucket, *freeable; |
| 1253 | |
| 1254 | bucket = surfaces.next; |
| 1255 | while ( bucket ) { |
| 1256 | freeable = bucket; |
| 1257 | bucket = bucket->next; |
| 1258 | SDL_free(freeable); |
| 1259 | } |
| 1260 | surfaces.next = NULL; |
| 1261 | } |
| 1262 | |
| 1263 | static int FB_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 1264 | { |
| 1265 | vidmem_bucket *bucket; |
| 1266 | int size; |
| 1267 | int extra; |
| 1268 | |
| 1269 | /* Temporarily, we only allow surfaces the same width as display. |
| 1270 | Some blitters require the pitch between two hardware surfaces |
| 1271 | to be the same. Others have interesting alignment restrictions. |
| 1272 | Until someone who knows these details looks at the code... |
| 1273 | */ |
| 1274 | if ( surface->pitch > SDL_VideoSurface->pitch ) { |
| 1275 | SDL_SetError("Surface requested wider than screen"); |
| 1276 | return(-1); |
| 1277 | } |
| 1278 | surface->pitch = SDL_VideoSurface->pitch; |
| 1279 | size = surface->h * surface->pitch; |
| 1280 | #ifdef FBCON_DEBUG |
| 1281 | fprintf(stderr, "Allocating bucket of %d bytes\n", size); |
| 1282 | #endif |
| 1283 | |
| 1284 | /* Quick check for available mem */ |
| 1285 | if ( size > surfaces_memleft ) { |
| 1286 | SDL_SetError("Not enough video memory"); |
| 1287 | return(-1); |
| 1288 | } |
| 1289 | |
| 1290 | /* Search for an empty bucket big enough */ |
| 1291 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
| 1292 | if ( ! bucket->used && (size <= bucket->size) ) { |
| 1293 | break; |
| 1294 | } |
| 1295 | } |
| 1296 | if ( bucket == NULL ) { |
| 1297 | SDL_SetError("Video memory too fragmented"); |
| 1298 | return(-1); |
| 1299 | } |
| 1300 | |
| 1301 | /* Create a new bucket for left-over memory */ |
| 1302 | extra = (bucket->size - size); |
| 1303 | if ( extra ) { |
| 1304 | vidmem_bucket *newbucket; |
| 1305 | |
| 1306 | #ifdef FBCON_DEBUG |
| 1307 | fprintf(stderr, "Adding new free bucket of %d bytes\n", extra); |
| 1308 | #endif |
| 1309 | newbucket = (vidmem_bucket *)SDL_malloc(sizeof(*newbucket)); |
| 1310 | if ( newbucket == NULL ) { |
| 1311 | SDL_OutOfMemory(); |
| 1312 | return(-1); |
| 1313 | } |
| 1314 | newbucket->prev = bucket; |
| 1315 | newbucket->used = 0; |
| 1316 | newbucket->base = bucket->base+size; |
| 1317 | newbucket->size = extra; |
| 1318 | newbucket->next = bucket->next; |
| 1319 | if ( bucket->next ) { |
| 1320 | bucket->next->prev = newbucket; |
| 1321 | } |
| 1322 | bucket->next = newbucket; |
| 1323 | } |
| 1324 | |
| 1325 | /* Set the current bucket values and return it! */ |
| 1326 | bucket->used = 1; |
| 1327 | bucket->size = size; |
| 1328 | bucket->dirty = 0; |
| 1329 | #ifdef FBCON_DEBUG |
| 1330 | fprintf(stderr, "Allocated %d bytes at %p\n", bucket->size, bucket->base); |
| 1331 | #endif |
| 1332 | surfaces_memleft -= size; |
| 1333 | surface->flags |= SDL_HWSURFACE; |
| 1334 | surface->pixels = bucket->base; |
| 1335 | surface->hwdata = (struct private_hwdata *)bucket; |
| 1336 | return(0); |
| 1337 | } |
| 1338 | static void FB_FreeHWSurface(_THIS, SDL_Surface *surface) |
| 1339 | { |
| 1340 | vidmem_bucket *bucket, *freeable; |
| 1341 | |
| 1342 | /* Look for the bucket in the current list */ |
| 1343 | for ( bucket=&surfaces; bucket; bucket=bucket->next ) { |
| 1344 | if ( bucket == (vidmem_bucket *)surface->hwdata ) { |
| 1345 | break; |
| 1346 | } |
| 1347 | } |
| 1348 | if ( bucket && bucket->used ) { |
| 1349 | /* Add the memory back to the total */ |
| 1350 | #ifdef DGA_DEBUG |
| 1351 | printf("Freeing bucket of %d bytes\n", bucket->size); |
| 1352 | #endif |
| 1353 | surfaces_memleft += bucket->size; |
| 1354 | |
| 1355 | /* Can we merge the space with surrounding buckets? */ |
| 1356 | bucket->used = 0; |
| 1357 | if ( bucket->next && ! bucket->next->used ) { |
| 1358 | #ifdef DGA_DEBUG |
| 1359 | printf("Merging with next bucket, for %d total bytes\n", bucket->size+bucket->next->size); |
| 1360 | #endif |
| 1361 | freeable = bucket->next; |
| 1362 | bucket->size += bucket->next->size; |
| 1363 | bucket->next = bucket->next->next; |
| 1364 | if ( bucket->next ) { |
| 1365 | bucket->next->prev = bucket; |
| 1366 | } |
| 1367 | SDL_free(freeable); |
| 1368 | } |
| 1369 | if ( bucket->prev && ! bucket->prev->used ) { |
| 1370 | #ifdef DGA_DEBUG |
| 1371 | printf("Merging with previous bucket, for %d total bytes\n", bucket->prev->size+bucket->size); |
| 1372 | #endif |
| 1373 | freeable = bucket; |
| 1374 | bucket->prev->size += bucket->size; |
| 1375 | bucket->prev->next = bucket->next; |
| 1376 | if ( bucket->next ) { |
| 1377 | bucket->next->prev = bucket->prev; |
| 1378 | } |
| 1379 | SDL_free(freeable); |
| 1380 | } |
| 1381 | } |
| 1382 | surface->pixels = NULL; |
| 1383 | surface->hwdata = NULL; |
| 1384 | } |
| 1385 | |
| 1386 | static int FB_LockHWSurface(_THIS, SDL_Surface *surface) |
| 1387 | { |
| 1388 | if ( switched_away ) { |
| 1389 | return -2; /* no hardware access */ |
| 1390 | } |
| 1391 | if ( surface == this->screen ) { |
| 1392 | SDL_mutexP(hw_lock); |
| 1393 | if ( FB_IsSurfaceBusy(surface) ) { |
| 1394 | FB_WaitBusySurfaces(this); |
| 1395 | } |
| 1396 | } else { |
| 1397 | if ( FB_IsSurfaceBusy(surface) ) { |
| 1398 | FB_WaitBusySurfaces(this); |
| 1399 | } |
| 1400 | } |
| 1401 | return(0); |
| 1402 | } |
| 1403 | static void FB_UnlockHWSurface(_THIS, SDL_Surface *surface) |
| 1404 | { |
| 1405 | if ( surface == this->screen ) { |
| 1406 | SDL_mutexV(hw_lock); |
| 1407 | } |
| 1408 | } |
| 1409 | |
| 1410 | static void FB_WaitVBL(_THIS) |
| 1411 | { |
| 1412 | #ifdef FBIOWAITRETRACE /* Heheh, this didn't make it into the main kernel */ |
| 1413 | ioctl(console_fd, FBIOWAITRETRACE, 0); |
| 1414 | #endif |
| 1415 | return; |
| 1416 | } |
| 1417 | |
| 1418 | static void FB_WaitIdle(_THIS) |
| 1419 | { |
| 1420 | return; |
| 1421 | } |
| 1422 | |
| 1423 | static int FB_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1424 | { |
| 1425 | if ( switched_away ) { |
| 1426 | return -2; /* no hardware access */ |
| 1427 | } |
| 1428 | |
| 1429 | /* Wait for vertical retrace and then flip display */ |
| 1430 | cache_vinfo.yoffset = flip_page*surface->h; |
| 1431 | if ( FB_IsSurfaceBusy(this->screen) ) { |
| 1432 | FB_WaitBusySurfaces(this); |
| 1433 | } |
| 1434 | wait_vbl(this); |
| 1435 | if ( ioctl(console_fd, FBIOPAN_DISPLAY, &cache_vinfo) < 0 ) { |
| 1436 | SDL_SetError("ioctl(FBIOPAN_DISPLAY) failed"); |
| 1437 | return(-1); |
| 1438 | } |
| 1439 | flip_page = !flip_page; |
| 1440 | |
| 1441 | surface->pixels = flip_address[flip_page]; |
| 1442 | return(0); |
| 1443 | } |
| 1444 | |
| 1445 | static void FB_blit16(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, |
| 1446 | Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) |
| 1447 | { |
| 1448 | int w; |
| 1449 | Uint16 *src_pos = (Uint16 *)byte_src_pos; |
| 1450 | Uint16 *dst_pos = (Uint16 *)byte_dst_pos; |
| 1451 | |
| 1452 | while (height) { |
| 1453 | Uint16 *src = src_pos; |
| 1454 | Uint16 *dst = dst_pos; |
| 1455 | for (w = width; w != 0; w--) { |
| 1456 | *dst = *src; |
| 1457 | src += src_right_delta; |
| 1458 | dst++; |
| 1459 | } |
| 1460 | dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); |
| 1461 | src_pos += src_down_delta; |
| 1462 | height--; |
| 1463 | } |
| 1464 | } |
| 1465 | |
| 1466 | #define BLOCKSIZE_W 32 |
| 1467 | #define BLOCKSIZE_H 32 |
| 1468 | |
| 1469 | static void FB_blit16blocked(Uint8 *byte_src_pos, int src_right_delta, int src_down_delta, |
| 1470 | Uint8 *byte_dst_pos, int dst_linebytes, int width, int height) |
| 1471 | { |
| 1472 | int w; |
| 1473 | Uint16 *src_pos = (Uint16 *)byte_src_pos; |
| 1474 | Uint16 *dst_pos = (Uint16 *)byte_dst_pos; |
| 1475 | |
| 1476 | while (height > 0) { |
| 1477 | Uint16 *src = src_pos; |
| 1478 | Uint16 *dst = dst_pos; |
| 1479 | for (w = width; w > 0; w -= BLOCKSIZE_W) { |
| 1480 | FB_blit16((Uint8 *)src, |
| 1481 | src_right_delta, |
| 1482 | src_down_delta, |
| 1483 | (Uint8 *)dst, |
| 1484 | dst_linebytes, |
| 1485 | min(w, BLOCKSIZE_W), |
| 1486 | min(height, BLOCKSIZE_H)); |
| 1487 | src += src_right_delta * BLOCKSIZE_W; |
| 1488 | dst += BLOCKSIZE_W; |
| 1489 | } |
| 1490 | dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); |
| 1491 | src_pos += src_down_delta * BLOCKSIZE_H; |
| 1492 | height -= BLOCKSIZE_H; |
| 1493 | } |
| 1494 | } |
| 1495 | |
| 1496 | static void FB_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) |
| 1497 | { |
| 1498 | int width = cache_vinfo.xres; |
| 1499 | int height = cache_vinfo.yres; |
| 1500 | int bytes_per_pixel = (cache_vinfo.bits_per_pixel + 7) / 8; |
| 1501 | int i; |
| 1502 | |
| 1503 | if (!shadow_fb) { |
| 1504 | /* The application is already updating the visible video memory */ |
| 1505 | return; |
| 1506 | } |
| 1507 | |
| 1508 | if (cache_vinfo.bits_per_pixel != 16) { |
| 1509 | SDL_SetError("Shadow copy only implemented for 16 bpp"); |
| 1510 | return; |
| 1511 | } |
| 1512 | |
| 1513 | for (i = 0; i < numrects; i++) { |
| 1514 | int x1, y1, x2, y2; |
| 1515 | int scr_x1, scr_y1, scr_x2, scr_y2; |
| 1516 | int sha_x1, sha_y1; |
| 1517 | int shadow_right_delta; /* Address change when moving right in dest */ |
| 1518 | int shadow_down_delta; /* Address change when moving down in dest */ |
| 1519 | char *src_start; |
| 1520 | char *dst_start; |
| 1521 | |
| 1522 | x1 = rects[i].x; |
| 1523 | y1 = rects[i].y; |
| 1524 | x2 = x1 + rects[i].w; |
| 1525 | y2 = y1 + rects[i].h; |
| 1526 | |
| 1527 | if (x1 < 0) { |
| 1528 | x1 = 0; |
| 1529 | } else if (x1 > width) { |
| 1530 | x1 = width; |
| 1531 | } |
| 1532 | if (x2 < 0) { |
| 1533 | x2 = 0; |
| 1534 | } else if (x2 > width) { |
| 1535 | x2 = width; |
| 1536 | } |
| 1537 | if (y1 < 0) { |
| 1538 | y1 = 0; |
| 1539 | } else if (y1 > height) { |
| 1540 | y1 = height; |
| 1541 | } |
| 1542 | if (y2 < 0) { |
| 1543 | y2 = 0; |
| 1544 | } else if (y2 > height) { |
| 1545 | y2 = height; |
| 1546 | } |
| 1547 | if (x2 <= x1 || y2 <= y1) { |
| 1548 | continue; |
| 1549 | } |
| 1550 | |
| 1551 | switch (rotate) { |
| 1552 | case FBCON_ROTATE_NONE: |
| 1553 | sha_x1 = scr_x1 = x1; |
| 1554 | sha_y1 = scr_y1 = y1; |
| 1555 | scr_x2 = x2; |
| 1556 | scr_y2 = y2; |
| 1557 | shadow_right_delta = 1; |
| 1558 | shadow_down_delta = width; |
| 1559 | break; |
| 1560 | case FBCON_ROTATE_CCW: |
| 1561 | scr_x1 = y1; |
| 1562 | scr_y1 = width - x2; |
| 1563 | scr_x2 = y2; |
| 1564 | scr_y2 = width - x1; |
| 1565 | sha_x1 = x2 - 1; |
| 1566 | sha_y1 = y1; |
| 1567 | shadow_right_delta = width; |
| 1568 | shadow_down_delta = -1; |
| 1569 | break; |
| 1570 | case FBCON_ROTATE_UD: |
| 1571 | scr_x1 = width - x2; |
| 1572 | scr_y1 = height - y2; |
| 1573 | scr_x2 = width - x1; |
| 1574 | scr_y2 = height - y1; |
| 1575 | sha_x1 = x2 - 1; |
| 1576 | sha_y1 = y2 - 1; |
| 1577 | shadow_right_delta = -1; |
| 1578 | shadow_down_delta = -width; |
| 1579 | break; |
| 1580 | case FBCON_ROTATE_CW: |
| 1581 | scr_x1 = height - y2; |
| 1582 | scr_y1 = x1; |
| 1583 | scr_x2 = height - y1; |
| 1584 | scr_y2 = x2; |
| 1585 | sha_x1 = x1; |
| 1586 | sha_y1 = y2 - 1; |
| 1587 | shadow_right_delta = -width; |
| 1588 | shadow_down_delta = 1; |
| 1589 | break; |
| 1590 | default: |
| 1591 | SDL_SetError("Unknown rotation"); |
| 1592 | return; |
| 1593 | } |
| 1594 | |
| 1595 | src_start = shadow_mem + |
| 1596 | (sha_y1 * width + sha_x1) * bytes_per_pixel; |
| 1597 | dst_start = mapped_mem + mapped_offset + scr_y1 * physlinebytes + |
| 1598 | scr_x1 * bytes_per_pixel; |
| 1599 | |
| 1600 | blitFunc((Uint8 *) src_start, |
| 1601 | shadow_right_delta, |
| 1602 | shadow_down_delta, |
| 1603 | (Uint8 *) dst_start, |
| 1604 | physlinebytes, |
| 1605 | scr_x2 - scr_x1, |
| 1606 | scr_y2 - scr_y1); |
| 1607 | } |
| 1608 | } |
| 1609 | |
| 1610 | #ifdef VGA16_FBCON_SUPPORT |
| 1611 | /* Code adapted with thanks from the XFree86 VGA16 driver! :) */ |
| 1612 | #define writeGr(index, value) \ |
| 1613 | outb(index, 0x3CE); \ |
| 1614 | outb(value, 0x3CF); |
| 1615 | #define writeSeq(index, value) \ |
| 1616 | outb(index, 0x3C4); \ |
| 1617 | outb(value, 0x3C5); |
| 1618 | |
| 1619 | static void FB_VGA16Update(_THIS, int numrects, SDL_Rect *rects) |
| 1620 | { |
| 1621 | SDL_Surface *screen; |
| 1622 | int width, height, FBPitch, left, i, j, SRCPitch, phase; |
| 1623 | register Uint32 m; |
| 1624 | Uint8 s1, s2, s3, s4; |
| 1625 | Uint32 *src, *srcPtr; |
| 1626 | Uint8 *dst, *dstPtr; |
| 1627 | |
| 1628 | if ( switched_away ) { |
| 1629 | return; /* no hardware access */ |
| 1630 | } |
| 1631 | |
| 1632 | screen = this->screen; |
| 1633 | FBPitch = screen->w >> 3; |
| 1634 | SRCPitch = screen->pitch >> 2; |
| 1635 | |
| 1636 | writeGr(0x03, 0x00); |
| 1637 | writeGr(0x05, 0x00); |
| 1638 | writeGr(0x01, 0x00); |
| 1639 | writeGr(0x08, 0xFF); |
| 1640 | |
| 1641 | while(numrects--) { |
| 1642 | left = rects->x & ~7; |
| 1643 | width = (rects->w + 7) >> 3; |
| 1644 | height = rects->h; |
| 1645 | src = (Uint32*)screen->pixels + (rects->y * SRCPitch) + (left >> 2); |
| 1646 | dst = (Uint8*)mapped_mem + (rects->y * FBPitch) + (left >> 3); |
| 1647 | |
| 1648 | if((phase = (long)dst & 3L)) { |
| 1649 | phase = 4 - phase; |
| 1650 | if(phase > width) phase = width; |
| 1651 | width -= phase; |
| 1652 | } |
| 1653 | |
| 1654 | while(height--) { |
| 1655 | writeSeq(0x02, 1 << 0); |
| 1656 | dstPtr = dst; |
| 1657 | srcPtr = src; |
| 1658 | i = width; |
| 1659 | j = phase; |
| 1660 | while(j--) { |
| 1661 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); |
| 1662 | *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1663 | srcPtr += 2; |
| 1664 | } |
| 1665 | while(i >= 4) { |
| 1666 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); |
| 1667 | s1 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1668 | m = (srcPtr[3] & 0x01010101) | ((srcPtr[2] & 0x01010101) << 4); |
| 1669 | s2 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1670 | m = (srcPtr[5] & 0x01010101) | ((srcPtr[4] & 0x01010101) << 4); |
| 1671 | s3 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1672 | m = (srcPtr[7] & 0x01010101) | ((srcPtr[6] & 0x01010101) << 4); |
| 1673 | s4 = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1674 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); |
| 1675 | srcPtr += 8; |
| 1676 | dstPtr += 4; |
| 1677 | i -= 4; |
| 1678 | } |
| 1679 | while(i--) { |
| 1680 | m = (srcPtr[1] & 0x01010101) | ((srcPtr[0] & 0x01010101) << 4); |
| 1681 | *dstPtr++ = (m >> 24) | (m >> 15) | (m >> 6) | (m << 3); |
| 1682 | srcPtr += 2; |
| 1683 | } |
| 1684 | |
| 1685 | writeSeq(0x02, 1 << 1); |
| 1686 | dstPtr = dst; |
| 1687 | srcPtr = src; |
| 1688 | i = width; |
| 1689 | j = phase; |
| 1690 | while(j--) { |
| 1691 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); |
| 1692 | *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1693 | srcPtr += 2; |
| 1694 | } |
| 1695 | while(i >= 4) { |
| 1696 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); |
| 1697 | s1 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1698 | m = (srcPtr[3] & 0x02020202) | ((srcPtr[2] & 0x02020202) << 4); |
| 1699 | s2 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1700 | m = (srcPtr[5] & 0x02020202) | ((srcPtr[4] & 0x02020202) << 4); |
| 1701 | s3 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1702 | m = (srcPtr[7] & 0x02020202) | ((srcPtr[6] & 0x02020202) << 4); |
| 1703 | s4 = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1704 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); |
| 1705 | srcPtr += 8; |
| 1706 | dstPtr += 4; |
| 1707 | i -= 4; |
| 1708 | } |
| 1709 | while(i--) { |
| 1710 | m = (srcPtr[1] & 0x02020202) | ((srcPtr[0] & 0x02020202) << 4); |
| 1711 | *dstPtr++ = (m >> 25) | (m >> 16) | (m >> 7) | (m << 2); |
| 1712 | srcPtr += 2; |
| 1713 | } |
| 1714 | |
| 1715 | writeSeq(0x02, 1 << 2); |
| 1716 | dstPtr = dst; |
| 1717 | srcPtr = src; |
| 1718 | i = width; |
| 1719 | j = phase; |
| 1720 | while(j--) { |
| 1721 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); |
| 1722 | *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1723 | srcPtr += 2; |
| 1724 | } |
| 1725 | while(i >= 4) { |
| 1726 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); |
| 1727 | s1 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1728 | m = (srcPtr[3] & 0x04040404) | ((srcPtr[2] & 0x04040404) << 4); |
| 1729 | s2 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1730 | m = (srcPtr[5] & 0x04040404) | ((srcPtr[4] & 0x04040404) << 4); |
| 1731 | s3 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1732 | m = (srcPtr[7] & 0x04040404) | ((srcPtr[6] & 0x04040404) << 4); |
| 1733 | s4 = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1734 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); |
| 1735 | srcPtr += 8; |
| 1736 | dstPtr += 4; |
| 1737 | i -= 4; |
| 1738 | } |
| 1739 | while(i--) { |
| 1740 | m = (srcPtr[1] & 0x04040404) | ((srcPtr[0] & 0x04040404) << 4); |
| 1741 | *dstPtr++ = (m >> 26) | (m >> 17) | (m >> 8) | (m << 1); |
| 1742 | srcPtr += 2; |
| 1743 | } |
| 1744 | |
| 1745 | writeSeq(0x02, 1 << 3); |
| 1746 | dstPtr = dst; |
| 1747 | srcPtr = src; |
| 1748 | i = width; |
| 1749 | j = phase; |
| 1750 | while(j--) { |
| 1751 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); |
| 1752 | *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1753 | srcPtr += 2; |
| 1754 | } |
| 1755 | while(i >= 4) { |
| 1756 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); |
| 1757 | s1 = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1758 | m = (srcPtr[3] & 0x08080808) | ((srcPtr[2] & 0x08080808) << 4); |
| 1759 | s2 = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1760 | m = (srcPtr[5] & 0x08080808) | ((srcPtr[4] & 0x08080808) << 4); |
| 1761 | s3 = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1762 | m = (srcPtr[7] & 0x08080808) | ((srcPtr[6] & 0x08080808) << 4); |
| 1763 | s4 = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1764 | *((Uint32*)dstPtr) = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24); |
| 1765 | srcPtr += 8; |
| 1766 | dstPtr += 4; |
| 1767 | i -= 4; |
| 1768 | } |
| 1769 | while(i--) { |
| 1770 | m = (srcPtr[1] & 0x08080808) | ((srcPtr[0] & 0x08080808) << 4); |
| 1771 | *dstPtr++ = (m >> 27) | (m >> 18) | (m >> 9) | m; |
| 1772 | srcPtr += 2; |
| 1773 | } |
| 1774 | |
| 1775 | dst += FBPitch; |
| 1776 | src += SRCPitch; |
| 1777 | } |
| 1778 | rects++; |
| 1779 | } |
| 1780 | } |
| 1781 | #endif /* VGA16_FBCON_SUPPORT */ |
| 1782 | |
| 1783 | void FB_SavePaletteTo(_THIS, int palette_len, __u16 *area) |
| 1784 | { |
| 1785 | struct fb_cmap cmap; |
| 1786 | |
| 1787 | cmap.start = 0; |
| 1788 | cmap.len = palette_len; |
| 1789 | cmap.red = &area[0*palette_len]; |
| 1790 | cmap.green = &area[1*palette_len]; |
| 1791 | cmap.blue = &area[2*palette_len]; |
| 1792 | cmap.transp = NULL; |
| 1793 | ioctl(console_fd, FBIOGETCMAP, &cmap); |
| 1794 | } |
| 1795 | |
| 1796 | void FB_RestorePaletteFrom(_THIS, int palette_len, __u16 *area) |
| 1797 | { |
| 1798 | struct fb_cmap cmap; |
| 1799 | |
| 1800 | cmap.start = 0; |
| 1801 | cmap.len = palette_len; |
| 1802 | cmap.red = &area[0*palette_len]; |
| 1803 | cmap.green = &area[1*palette_len]; |
| 1804 | cmap.blue = &area[2*palette_len]; |
| 1805 | cmap.transp = NULL; |
| 1806 | ioctl(console_fd, FBIOPUTCMAP, &cmap); |
| 1807 | } |
| 1808 | |
| 1809 | static void FB_SavePalette(_THIS, struct fb_fix_screeninfo *finfo, |
| 1810 | struct fb_var_screeninfo *vinfo) |
| 1811 | { |
| 1812 | int i; |
| 1813 | |
| 1814 | /* Save hardware palette, if needed */ |
| 1815 | if ( finfo->visual == FB_VISUAL_PSEUDOCOLOR ) { |
| 1816 | saved_cmaplen = 1<<vinfo->bits_per_pixel; |
| 1817 | saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 1818 | if ( saved_cmap != NULL ) { |
| 1819 | FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); |
| 1820 | } |
| 1821 | } |
| 1822 | |
| 1823 | /* Added support for FB_VISUAL_DIRECTCOLOR. |
| 1824 | With this mode pixel information is passed through the palette... |
| 1825 | Neat fading and gamma correction effects can be had by simply |
| 1826 | fooling around with the palette instead of changing the pixel |
| 1827 | values themselves... Very neat! |
| 1828 | |
| 1829 | Adam Meyerowitz 1/19/2000 |
| 1830 | ameyerow@optonline.com |
| 1831 | */ |
| 1832 | if ( finfo->visual == FB_VISUAL_DIRECTCOLOR ) { |
| 1833 | __u16 new_entries[3*256]; |
| 1834 | |
| 1835 | /* Save the colormap */ |
| 1836 | saved_cmaplen = 256; |
| 1837 | saved_cmap=(__u16 *)SDL_malloc(3*saved_cmaplen*sizeof(*saved_cmap)); |
| 1838 | if ( saved_cmap != NULL ) { |
| 1839 | FB_SavePaletteTo(this, saved_cmaplen, saved_cmap); |
| 1840 | } |
| 1841 | |
| 1842 | /* Allocate new identity colormap */ |
| 1843 | for ( i=0; i<256; ++i ) { |
| 1844 | new_entries[(0*256)+i] = |
| 1845 | new_entries[(1*256)+i] = |
| 1846 | new_entries[(2*256)+i] = (i<<8)|i; |
| 1847 | } |
| 1848 | FB_RestorePaletteFrom(this, 256, new_entries); |
| 1849 | } |
| 1850 | } |
| 1851 | |
| 1852 | static void FB_RestorePalette(_THIS) |
| 1853 | { |
| 1854 | /* Restore the original palette */ |
| 1855 | if ( saved_cmap ) { |
| 1856 | FB_RestorePaletteFrom(this, saved_cmaplen, saved_cmap); |
| 1857 | SDL_free(saved_cmap); |
| 1858 | saved_cmap = NULL; |
| 1859 | } |
| 1860 | } |
| 1861 | |
| 1862 | static int FB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
| 1863 | { |
| 1864 | int i; |
| 1865 | __u16 r[256]; |
| 1866 | __u16 g[256]; |
| 1867 | __u16 b[256]; |
| 1868 | struct fb_cmap cmap; |
| 1869 | |
| 1870 | /* Set up the colormap */ |
| 1871 | for (i = 0; i < ncolors; i++) { |
| 1872 | r[i] = colors[i].r << 8; |
| 1873 | g[i] = colors[i].g << 8; |
| 1874 | b[i] = colors[i].b << 8; |
| 1875 | } |
| 1876 | cmap.start = firstcolor; |
| 1877 | cmap.len = ncolors; |
| 1878 | cmap.red = r; |
| 1879 | cmap.green = g; |
| 1880 | cmap.blue = b; |
| 1881 | cmap.transp = NULL; |
| 1882 | |
| 1883 | if( (ioctl(console_fd, FBIOPUTCMAP, &cmap) < 0) || |
| 1884 | !(this->screen->flags & SDL_HWPALETTE) ) { |
| 1885 | colors = this->screen->format->palette->colors; |
| 1886 | ncolors = this->screen->format->palette->ncolors; |
| 1887 | cmap.start = 0; |
| 1888 | cmap.len = ncolors; |
| 1889 | SDL_memset(r, 0, sizeof(r)); |
| 1890 | SDL_memset(g, 0, sizeof(g)); |
| 1891 | SDL_memset(b, 0, sizeof(b)); |
| 1892 | if ( ioctl(console_fd, FBIOGETCMAP, &cmap) == 0 ) { |
| 1893 | for ( i=ncolors-1; i>=0; --i ) { |
| 1894 | colors[i].r = (r[i]>>8); |
| 1895 | colors[i].g = (g[i]>>8); |
| 1896 | colors[i].b = (b[i]>>8); |
| 1897 | } |
| 1898 | } |
| 1899 | return(0); |
| 1900 | } |
| 1901 | return(1); |
| 1902 | } |
| 1903 | |
| 1904 | /* Note: If we are terminated, this could be called in the middle of |
| 1905 | another SDL video routine -- notably UpdateRects. |
| 1906 | */ |
| 1907 | static void FB_VideoQuit(_THIS) |
| 1908 | { |
| 1909 | int i, j; |
| 1910 | |
| 1911 | if ( this->screen ) { |
| 1912 | /* Clear screen and tell SDL not to free the pixels */ |
| 1913 | if ( this->screen->pixels && FB_InGraphicsMode(this) ) { |
| 1914 | #if defined(__powerpc__) || defined(__ia64__) /* SIGBUS when using SDL_memset() ?? */ |
| 1915 | Uint8 *rowp = (Uint8 *)this->screen->pixels; |
| 1916 | int left = this->screen->pitch*this->screen->h; |
| 1917 | while ( left-- ) { *rowp++ = 0; } |
| 1918 | #else |
| 1919 | SDL_memset(this->screen->pixels,0,this->screen->h*this->screen->pitch); |
| 1920 | #endif |
| 1921 | } |
| 1922 | /* This test fails when using the VGA16 shadow memory */ |
| 1923 | if ( ((char *)this->screen->pixels >= mapped_mem) && |
| 1924 | ((char *)this->screen->pixels < (mapped_mem+mapped_memlen)) ) { |
| 1925 | this->screen->pixels = NULL; |
| 1926 | } |
| 1927 | } |
| 1928 | |
| 1929 | /* Clear the lock mutex */ |
| 1930 | if ( hw_lock ) { |
| 1931 | SDL_DestroyMutex(hw_lock); |
| 1932 | hw_lock = NULL; |
| 1933 | } |
| 1934 | |
| 1935 | /* Clean up defined video modes */ |
| 1936 | for ( i=0; i<NUM_MODELISTS; ++i ) { |
| 1937 | if ( SDL_modelist[i] != NULL ) { |
| 1938 | for ( j=0; SDL_modelist[i][j]; ++j ) { |
| 1939 | SDL_free(SDL_modelist[i][j]); |
| 1940 | } |
| 1941 | SDL_free(SDL_modelist[i]); |
| 1942 | SDL_modelist[i] = NULL; |
| 1943 | } |
| 1944 | } |
| 1945 | |
| 1946 | /* Clean up the memory bucket list */ |
| 1947 | FB_FreeHWSurfaces(this); |
| 1948 | |
| 1949 | /* Close console and input file descriptors */ |
| 1950 | if ( console_fd > 0 ) { |
| 1951 | /* Unmap the video framebuffer and I/O registers */ |
| 1952 | if ( mapped_mem ) { |
| 1953 | munmap(mapped_mem, mapped_memlen); |
| 1954 | mapped_mem = NULL; |
| 1955 | } |
| 1956 | if ( mapped_io ) { |
| 1957 | munmap(mapped_io, mapped_iolen); |
| 1958 | mapped_io = NULL; |
| 1959 | } |
| 1960 | |
| 1961 | /* Restore the original video mode and palette */ |
| 1962 | if ( FB_InGraphicsMode(this) ) { |
| 1963 | FB_RestorePalette(this); |
| 1964 | ioctl(console_fd, FBIOPUT_VSCREENINFO, &saved_vinfo); |
| 1965 | } |
| 1966 | |
| 1967 | /* We're all done with the framebuffer */ |
| 1968 | close(console_fd); |
| 1969 | console_fd = -1; |
| 1970 | } |
| 1971 | FB_CloseMouse(this); |
| 1972 | FB_CloseKeyboard(this); |
| 1973 | } |