Mercurial > sdl-ios-xcode
annotate src/video/svga/SDL_svgavideo.c @ 4066:58a5055da431 SDL-1.2
More improvements for bug #373
Show the SDL cursor in the window and the arrow cursor outside the window.
This is also supposed to show the SDL cursor when activated, but that code
isn't working yet...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 14 Jul 2007 08:27:06 +0000 |
| parents | 011b633fa0c9 |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* SVGAlib based SDL video driver implementation. | |
| 25 */ | |
| 26 | |
| 27 #include <unistd.h> | |
| 28 #include <sys/stat.h> | |
|
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29 #include <sys/types.h> |
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30 #include <sys/ioctl.h> |
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31 #include <fcntl.h> |
| 0 | 32 |
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33 #if defined(__LINUX__) |
| 0 | 34 #include <linux/vt.h> |
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35 #elif defined(__FREEBSD__) |
| 0 | 36 #include <sys/consio.h> |
| 37 #else | |
| 38 #error You must choose your operating system here | |
| 39 #endif | |
| 40 #include <vga.h> | |
| 41 #include <vgamouse.h> | |
| 42 #include <vgakeyboard.h> | |
| 43 | |
| 44 #include "SDL_video.h" | |
| 45 #include "SDL_mouse.h" | |
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46 #include "../SDL_sysvideo.h" |
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47 #include "../SDL_pixels_c.h" |
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48 #include "../../events/SDL_events_c.h" |
| 0 | 49 #include "SDL_svgavideo.h" |
| 50 #include "SDL_svgaevents_c.h" | |
| 51 #include "SDL_svgamouse_c.h" | |
| 52 | |
| 53 /* Initialization/Query functions */ | |
| 54 static int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 55 static SDL_Rect **SVGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 56 static SDL_Surface *SVGA_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 57 static int SVGA_SetColors(_THIS, int firstcolor, int ncolors, | |
| 58 SDL_Color *colors); | |
| 59 static void SVGA_VideoQuit(_THIS); | |
| 60 | |
| 61 /* Hardware surface functions */ | |
| 62 static int SVGA_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 63 static int SVGA_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 64 static int SVGA_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 65 static void SVGA_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 66 static void SVGA_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 67 | |
| 68 /* SVGAlib driver bootstrap functions */ | |
| 69 | |
| 70 static int SVGA_Available(void) | |
| 71 { | |
| 72 /* Check to see if we are root and stdin is a virtual console */ | |
| 73 int console; | |
|
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74 |
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75 /* SVGALib 1.9.x+ doesn't require root (via /dev/svga) */ |
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76 int svgalib2 = -1; |
| 0 | 77 |
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78 /* See if we are connected to a virtual terminal */ |
| 0 | 79 console = STDIN_FILENO; |
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80 #if 0 /* This is no longer needed, SVGAlib can switch consoles for us */ |
| 0 | 81 if ( console >= 0 ) { |
| 82 struct stat sb; | |
| 83 struct vt_mode dummy; | |
| 84 | |
| 85 if ( (fstat(console, &sb) < 0) || | |
| 86 (ioctl(console, VT_GETMODE, &dummy) < 0) ) { | |
| 87 console = -1; | |
| 88 } | |
| 89 } | |
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90 #endif /* 0 */ |
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91 |
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92 /* See if SVGAlib 2.0 is available */ |
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93 svgalib2 = open("/dev/svga", O_RDONLY); |
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94 if (svgalib2 != -1) { |
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95 close(svgalib2); |
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96 } |
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97 |
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98 return(((svgalib2 != -1) || (geteuid() == 0)) && (console >= 0)); |
| 0 | 99 } |
| 100 | |
| 101 static void SVGA_DeleteDevice(SDL_VideoDevice *device) | |
| 102 { | |
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103 SDL_free(device->hidden); |
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104 SDL_free(device); |
| 0 | 105 } |
| 106 | |
| 107 static SDL_VideoDevice *SVGA_CreateDevice(int devindex) | |
| 108 { | |
| 109 SDL_VideoDevice *device; | |
| 110 | |
| 111 /* Initialize all variables that we clean on shutdown */ | |
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112 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 113 if ( device ) { |
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114 SDL_memset(device, 0, (sizeof *device)); |
| 0 | 115 device->hidden = (struct SDL_PrivateVideoData *) |
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116 SDL_malloc((sizeof *device->hidden)); |
| 0 | 117 } |
| 118 if ( (device == NULL) || (device->hidden == NULL) ) { | |
| 119 SDL_OutOfMemory(); | |
| 120 if ( device ) { | |
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121 SDL_free(device); |
| 0 | 122 } |
| 123 return(0); | |
| 124 } | |
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125 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| 0 | 126 |
| 127 /* Set the function pointers */ | |
| 128 device->VideoInit = SVGA_VideoInit; | |
| 129 device->ListModes = SVGA_ListModes; | |
| 130 device->SetVideoMode = SVGA_SetVideoMode; | |
| 131 device->SetColors = SVGA_SetColors; | |
| 132 device->UpdateRects = NULL; | |
| 133 device->VideoQuit = SVGA_VideoQuit; | |
| 134 device->AllocHWSurface = SVGA_AllocHWSurface; | |
| 135 device->CheckHWBlit = NULL; | |
| 136 device->FillHWRect = NULL; | |
| 137 device->SetHWColorKey = NULL; | |
| 138 device->SetHWAlpha = NULL; | |
| 139 device->LockHWSurface = SVGA_LockHWSurface; | |
| 140 device->UnlockHWSurface = SVGA_UnlockHWSurface; | |
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141 device->FlipHWSurface = SVGA_FlipHWSurface; |
| 0 | 142 device->FreeHWSurface = SVGA_FreeHWSurface; |
| 143 device->SetCaption = NULL; | |
| 144 device->SetIcon = NULL; | |
| 145 device->IconifyWindow = NULL; | |
| 146 device->GrabInput = NULL; | |
| 147 device->GetWMInfo = NULL; | |
| 148 device->InitOSKeymap = SVGA_InitOSKeymap; | |
| 149 device->PumpEvents = SVGA_PumpEvents; | |
| 150 | |
| 151 device->free = SVGA_DeleteDevice; | |
| 152 | |
| 153 return device; | |
| 154 } | |
| 155 | |
| 156 VideoBootStrap SVGALIB_bootstrap = { | |
| 157 "svgalib", "SVGAlib", | |
| 158 SVGA_Available, SVGA_CreateDevice | |
| 159 }; | |
| 160 | |
| 1556 | 161 static int SVGA_AddMode(_THIS, int mode, int actually_add) |
| 0 | 162 { |
| 1556 | 163 int i, j; |
| 0 | 164 vga_modeinfo *modeinfo; |
| 165 | |
| 166 modeinfo = vga_getmodeinfo(mode); | |
| 167 | |
| 1556 | 168 i = modeinfo->bytesperpixel-1; |
| 169 if ( i < 0 ) { | |
| 170 return 0; | |
| 171 } | |
| 172 if ( actually_add ) { | |
| 173 SDL_Rect saved_rect[2]; | |
| 174 int saved_mode[2]; | |
| 175 int b; | |
| 0 | 176 |
| 1556 | 177 /* Add the mode, sorted largest to smallest */ |
| 178 b = 0; | |
| 179 j = 0; | |
| 180 while ( (SDL_modelist[i][j]->w > modeinfo->width) || | |
| 181 (SDL_modelist[i][j]->h > modeinfo->height) ) { | |
| 182 ++j; | |
| 183 } | |
| 184 /* Skip modes that are already in our list */ | |
| 185 if ( (SDL_modelist[i][j]->w == modeinfo->width) && | |
| 186 (SDL_modelist[i][j]->h == modeinfo->height) ) { | |
| 187 return(0); | |
| 0 | 188 } |
| 1556 | 189 /* Insert the new mode */ |
| 190 saved_rect[b] = *SDL_modelist[i][j]; | |
| 191 saved_mode[b] = SDL_vgamode[i][j]; | |
| 192 SDL_modelist[i][j]->w = modeinfo->width; | |
| 193 SDL_modelist[i][j]->h = modeinfo->height; | |
| 194 SDL_vgamode[i][j] = mode; | |
| 195 /* Everybody scoot down! */ | |
| 196 if ( saved_rect[b].w && saved_rect[b].h ) { | |
| 197 for ( ++j; SDL_modelist[i][j]->w; ++j ) { | |
| 198 saved_rect[!b] = *SDL_modelist[i][j]; | |
| 199 saved_mode[!b] = SDL_vgamode[i][j]; | |
| 200 *SDL_modelist[i][j] = saved_rect[b]; | |
| 201 SDL_vgamode[i][j] = saved_mode[b]; | |
| 202 b = !b; | |
| 203 } | |
| 204 *SDL_modelist[i][j] = saved_rect[b]; | |
| 205 SDL_vgamode[i][j] = saved_mode[b]; | |
| 206 } | |
| 207 } else { | |
| 208 ++SDL_nummodes[i]; | |
| 0 | 209 } |
| 1556 | 210 return(1); |
| 0 | 211 } |
| 212 | |
| 213 static void SVGA_UpdateVideoInfo(_THIS) | |
| 214 { | |
| 215 vga_modeinfo *modeinfo; | |
| 216 | |
| 217 this->info.wm_available = 0; | |
| 1556 | 218 this->info.hw_available = (banked ? 0 : 1); |
| 0 | 219 modeinfo = vga_getmodeinfo(vga_getcurrentmode()); |
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220 this->info.video_mem = modeinfo->memory; |
| 0 | 221 /* FIXME: Add hardware accelerated blit information */ |
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222 #ifdef SVGALIB_DEBUG |
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223 printf("Hardware accelerated blit: %savailable\n", modeinfo->haveblit ? "" : "not "); |
| 0 | 224 #endif |
| 225 } | |
| 226 | |
| 227 int SVGA_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 228 { | |
| 229 int keyboard; | |
| 230 int i, j; | |
| 231 int mode, total_modes; | |
| 232 | |
| 233 /* Initialize all variables that we clean on shutdown */ | |
| 234 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 235 SDL_nummodes[i] = 0; | |
| 236 SDL_modelist[i] = NULL; | |
| 237 SDL_vgamode[i] = NULL; | |
| 238 } | |
| 239 | |
| 240 /* Initialize the library */ | |
| 241 vga_disabledriverreport(); | |
| 242 if ( vga_init() < 0 ) { | |
| 243 SDL_SetError("Unable to initialize SVGAlib"); | |
| 244 return(-1); | |
| 245 } | |
| 246 vga_setmode(TEXT); | |
| 247 | |
| 248 /* Enable mouse and keyboard support */ | |
| 249 vga_setmousesupport(1); | |
| 250 keyboard = keyboard_init_return_fd(); | |
| 251 if ( keyboard < 0 ) { | |
| 252 SDL_SetError("Unable to initialize keyboard"); | |
| 253 return(-1); | |
| 254 } | |
| 255 if ( SVGA_initkeymaps(keyboard) < 0 ) { | |
| 256 return(-1); | |
| 257 } | |
| 258 keyboard_seteventhandler(SVGA_keyboardcallback); | |
| 259 | |
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260 /* Determine the current screen size */ |
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261 this->info.current_w = 0; |
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262 this->info.current_h = 0; |
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263 |
| 0 | 264 /* Determine the screen depth (use default 8-bit depth) */ |
| 265 vformat->BitsPerPixel = 8; | |
| 266 | |
| 267 /* Enumerate the available fullscreen modes */ | |
| 268 total_modes = 0; | |
| 269 for ( mode=vga_lastmodenumber(); mode; --mode ) { | |
| 270 if ( vga_hasmode(mode) ) { | |
| 1556 | 271 if ( SVGA_AddMode(this, mode, 0) ) { |
| 0 | 272 ++total_modes; |
| 273 } | |
| 274 } | |
| 275 } | |
| 1556 | 276 if ( SVGA_AddMode(this, G320x200x256, 0) ) ++total_modes; |
| 0 | 277 if ( total_modes == 0 ) { |
| 278 SDL_SetError("No linear video modes available"); | |
| 279 return(-1); | |
| 280 } | |
| 281 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
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282 SDL_vgamode[i] = (int *)SDL_malloc(SDL_nummodes[i]*sizeof(int)); |
| 0 | 283 if ( SDL_vgamode[i] == NULL ) { |
| 284 SDL_OutOfMemory(); | |
| 285 return(-1); | |
| 286 } | |
| 287 SDL_modelist[i] = (SDL_Rect **) | |
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288 SDL_malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *)); |
| 0 | 289 if ( SDL_modelist[i] == NULL ) { |
| 290 SDL_OutOfMemory(); | |
| 291 return(-1); | |
| 292 } | |
| 293 for ( j=0; j<SDL_nummodes[i]; ++j ) { | |
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294 SDL_modelist[i][j]=(SDL_Rect *)SDL_malloc(sizeof(SDL_Rect)); |
| 0 | 295 if ( SDL_modelist[i][j] == NULL ) { |
| 296 SDL_OutOfMemory(); | |
| 297 return(-1); | |
| 298 } | |
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299 SDL_memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect)); |
| 0 | 300 } |
| 301 SDL_modelist[i][j] = NULL; | |
| 302 } | |
| 303 for ( mode=vga_lastmodenumber(); mode; --mode ) { | |
| 304 if ( vga_hasmode(mode) ) { | |
| 1556 | 305 SVGA_AddMode(this, mode, 1); |
| 0 | 306 } |
| 307 } | |
| 1556 | 308 SVGA_AddMode(this, G320x200x256, 1); |
| 0 | 309 |
| 310 /* Free extra (duplicated) modes */ | |
| 311 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 312 j = 0; | |
| 313 while ( SDL_modelist[i][j] && SDL_modelist[i][j]->w ) { | |
| 314 j++; | |
| 315 } | |
| 316 while ( SDL_modelist[i][j] ) { | |
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317 SDL_free(SDL_modelist[i][j]); |
| 0 | 318 SDL_modelist[i][j] = NULL; |
| 319 j++; | |
| 320 } | |
| 321 } | |
| 322 | |
| 323 /* Fill in our hardware acceleration capabilities */ | |
| 324 SVGA_UpdateVideoInfo(this); | |
| 325 | |
| 326 /* We're done! */ | |
| 327 return(0); | |
| 328 } | |
| 329 | |
| 330 SDL_Rect **SVGA_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 331 { | |
| 332 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 333 } | |
| 334 | |
| 335 /* Various screen update functions available */ | |
| 336 static void SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 337 static void SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 338 | |
| 339 SDL_Surface *SVGA_SetVideoMode(_THIS, SDL_Surface *current, | |
| 340 int width, int height, int bpp, Uint32 flags) | |
| 341 { | |
| 342 int mode; | |
| 343 int vgamode; | |
| 344 vga_modeinfo *modeinfo; | |
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345 int screenpage_len; |
| 0 | 346 |
| 1556 | 347 /* Free old pixels if we were in banked mode */ |
| 348 if ( banked && current->pixels ) { | |
| 349 free(current->pixels); | |
| 350 current->pixels = NULL; | |
| 1554 | 351 } |
| 352 | |
| 0 | 353 /* Try to set the requested linear video mode */ |
| 354 bpp = (bpp+7)/8-1; | |
| 355 for ( mode=0; SDL_modelist[bpp][mode]; ++mode ) { | |
| 356 if ( (SDL_modelist[bpp][mode]->w == width) && | |
| 357 (SDL_modelist[bpp][mode]->h == height) ) { | |
| 358 break; | |
| 359 } | |
| 360 } | |
| 361 if ( SDL_modelist[bpp][mode] == NULL ) { | |
| 362 SDL_SetError("Couldn't find requested mode in list"); | |
| 363 return(NULL); | |
| 364 } | |
| 1554 | 365 vgamode = SDL_vgamode[bpp][mode]; |
| 366 vga_setmode(vgamode); | |
| 0 | 367 vga_setpage(0); |
| 368 | |
| 1554 | 369 if ( (vga_setlinearaddressing() < 0) && (vgamode != G320x200x256) ) { |
| 1556 | 370 banked = 1; |
| 371 } else { | |
| 372 banked = 0; | |
| 0 | 373 } |
| 1554 | 374 |
| 0 | 375 modeinfo = vga_getmodeinfo(SDL_vgamode[bpp][mode]); |
| 376 | |
| 377 /* Update hardware acceleration info */ | |
| 378 SVGA_UpdateVideoInfo(this); | |
| 379 | |
| 380 /* Allocate the new pixel format for the screen */ | |
| 381 bpp = (bpp+1)*8; | |
| 382 if ( (bpp == 16) && (modeinfo->colors == 32768) ) { | |
| 383 bpp = 15; | |
| 384 } | |
| 385 if ( ! SDL_ReallocFormat(current, bpp, 0, 0, 0, 0) ) { | |
| 386 return(NULL); | |
| 387 } | |
| 388 | |
| 389 /* Set up the new mode framebuffer */ | |
| 1554 | 390 current->flags = SDL_FULLSCREEN; |
| 1556 | 391 if ( !banked ) { |
| 1554 | 392 current->flags |= SDL_HWSURFACE; |
| 393 } | |
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394 if ( bpp == 8 ) { |
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395 /* FIXME: What about DirectColor? */ |
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396 current->flags |= SDL_HWPALETTE; |
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397 } |
| 0 | 398 current->w = width; |
| 399 current->h = height; | |
| 400 current->pitch = modeinfo->linewidth; | |
| 1556 | 401 if ( banked ) { |
| 402 current->pixels = SDL_malloc(current->h * current->pitch); | |
| 403 if ( !current->pixels ) { | |
| 404 SDL_OutOfMemory(); | |
| 405 return(NULL); | |
| 406 } | |
| 1554 | 407 } else { |
| 408 current->pixels = vga_getgraphmem(); | |
| 409 } | |
| 0 | 410 |
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411 /* set double-buffering */ |
| 1556 | 412 if ( (flags & SDL_DOUBLEBUF) && !banked ) |
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413 { |
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414 /* length of one screen page in bytes */ |
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415 screenpage_len=current->h*modeinfo->linewidth; |
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416 |
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417 /* if start address should be aligned */ |
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418 if ( modeinfo->linewidth_unit ) |
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419 { |
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420 if ( screenpage_len % modeinfo->linewidth_unit ) |
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421 { |
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422 screenpage_len += modeinfo->linewidth_unit - ( screenpage_len % modeinfo->linewidth_unit ); |
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423 } |
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424 } |
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425 |
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426 /* if we heve enough videomemory = ak je dost videopamete */ |
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427 if ( modeinfo->memory > ( screenpage_len * 2 / 1024 ) ) |
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428 { |
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429 current->flags |= SDL_DOUBLEBUF; |
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430 flip_page = 0; |
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431 flip_offset[0] = 0; |
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432 flip_offset[1] = screenpage_len; |
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433 flip_address[0] = vga_getgraphmem(); |
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434 flip_address[1] = flip_address[0]+screenpage_len; |
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435 SVGA_FlipHWSurface(this,current); |
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436 } |
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437 } |
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438 |
| 0 | 439 /* Set the blit function */ |
| 1556 | 440 if ( banked ) { |
| 1554 | 441 this->UpdateRects = SVGA_BankedUpdate; |
| 442 } else { | |
| 443 this->UpdateRects = SVGA_DirectUpdate; | |
| 444 } | |
| 0 | 445 |
| 446 /* Set up the mouse handler again (buggy SVGAlib 1.40) */ | |
| 447 mouse_seteventhandler(SVGA_mousecallback); | |
| 448 | |
| 449 /* We're done */ | |
| 450 return(current); | |
| 451 } | |
| 452 | |
| 453 /* We don't actually allow hardware surfaces other than the main one */ | |
| 454 static int SVGA_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 455 { | |
| 456 return(-1); | |
| 457 } | |
| 458 static void SVGA_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 459 { | |
| 460 return; | |
| 461 } | |
| 462 | |
| 463 /* We need to wait for vertical retrace on page flipped displays */ | |
| 464 static int SVGA_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 465 { | |
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466 /* The waiting is done in SVGA_FlipHWSurface() */ |
| 0 | 467 return(0); |
| 468 } | |
| 469 static void SVGA_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 470 { | |
| 471 return; | |
| 472 } | |
| 473 | |
| 474 static int SVGA_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 475 { | |
| 1556 | 476 if ( !banked ) { |
| 1554 | 477 vga_setdisplaystart(flip_offset[flip_page]); |
| 478 flip_page=!flip_page; | |
| 479 surface->pixels=flip_address[flip_page]; | |
| 480 vga_waitretrace(); | |
| 481 } | |
| 0 | 482 return(0); |
| 483 } | |
| 484 | |
| 485 static void SVGA_DirectUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 486 { | |
| 487 return; | |
| 488 } | |
| 489 | |
| 490 static void SVGA_BankedUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 491 { | |
| 1556 | 492 int i, j; |
| 1554 | 493 SDL_Rect *rect; |
| 1556 | 494 int page, vp; |
| 495 int x, y, w, h; | |
| 496 unsigned char *src; | |
| 497 unsigned char *dst; | |
| 498 int bpp = this->screen->format->BytesPerPixel; | |
| 499 int pitch = this->screen->pitch; | |
| 1554 | 500 |
| 1556 | 501 dst = vga_getgraphmem(); |
| 1554 | 502 for ( i=0; i < numrects; ++i ) { |
| 503 rect = &rects[i]; | |
| 1556 | 504 x = rect->x; |
| 505 y = rect->y; | |
| 506 w = rect->w * bpp; | |
| 507 h = rect->h; | |
| 508 | |
| 509 vp = y * pitch + x * bpp; | |
| 510 src = (unsigned char *)this->screen->pixels + vp; | |
| 511 page = vp >> 16; | |
| 512 vp &= 0xffff; | |
| 513 vga_setpage(page); | |
| 514 for (j = 0; j < h; j++) { | |
| 515 if (vp + w > 0x10000) { | |
| 516 if (vp >= 0x10000) { | |
| 517 page++; | |
| 518 vga_setpage(page); | |
| 519 vp &= 0xffff; | |
| 520 } else { | |
| 521 SDL_memcpy(dst + vp, src, 0x10000 - vp); | |
| 522 page++; | |
| 523 vga_setpage(page); | |
| 524 SDL_memcpy(dst, src + 0x10000 - vp, | |
| 525 (vp + w) & 0xffff); | |
| 526 vp = (vp + pitch) & 0xffff; | |
| 527 src += pitch; | |
| 528 continue; | |
| 529 } | |
| 530 } | |
| 531 SDL_memcpy(dst + vp, src, w); | |
| 532 src += pitch; | |
| 533 vp += pitch; | |
| 534 } | |
| 1554 | 535 } |
| 0 | 536 } |
| 537 | |
| 538 int SVGA_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 539 { | |
| 540 int i; | |
| 541 | |
| 542 for(i = 0; i < ncolors; i++) { | |
| 543 vga_setpalette(firstcolor + i, | |
| 544 colors[i].r>>2, | |
| 545 colors[i].g>>2, | |
| 546 colors[i].b>>2); | |
| 547 } | |
| 548 return(1); | |
| 549 } | |
| 550 | |
| 551 /* Note: If we are terminated, this could be called in the middle of | |
| 552 another SDL video routine -- notably UpdateRects. | |
| 553 */ | |
| 554 void SVGA_VideoQuit(_THIS) | |
| 555 { | |
| 556 int i, j; | |
| 557 | |
| 558 /* Reset the console video mode */ | |
| 559 if ( this->screen && (this->screen->w && this->screen->h) ) { | |
| 560 vga_setmode(TEXT); | |
| 561 } | |
| 562 keyboard_close(); | |
| 563 | |
| 564 /* Free video mode lists */ | |
| 565 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 566 if ( SDL_modelist[i] != NULL ) { | |
| 567 for ( j=0; SDL_modelist[i][j]; ++j ) | |
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568 SDL_free(SDL_modelist[i][j]); |
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569 SDL_free(SDL_modelist[i]); |
| 0 | 570 SDL_modelist[i] = NULL; |
| 571 } | |
| 572 if ( SDL_vgamode[i] != NULL ) { | |
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573 SDL_free(SDL_vgamode[i]); |
| 0 | 574 SDL_vgamode[i] = NULL; |
| 575 } | |
| 576 } | |
| 1556 | 577 if ( this->screen ) { |
| 578 if ( banked && this->screen->pixels ) { | |
| 579 SDL_free(this->screen->pixels); | |
| 580 } | |
| 0 | 581 this->screen->pixels = NULL; |
| 582 } | |
| 583 } | |
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584 |