Mercurial > sdl-ios-xcode
annotate src/video/wscons/SDL_wsconsvideo.c @ 1459:1e8582152d44
Date: Wed, 01 Mar 2006 10:14:31 +0000
From: "alan buckley"
Subject: Re: Updating SDL for RISC OS
I've attached a zip file with three diffs to get SDL to build on RISC OS.
configure.in.diff and makedeps.sh.diff have been modified so that they
can build the assembler file in video/riscos. You may want to double
check these as I don't know a lot about unix shell programming.
(I've tested them cross-compiling on cygwin).
sdlsysthread.diff is the changes required to SDL_systhread.c for RISC
OS. As you suspected with these changes in place you can delete the
RISC OS specific threading code in thread/riscos.
I've also renamed SDL_riscosASM.s to SDL_riscosASM.S, but I'm never
quite sure how to rename files in CVS, so if you could to this it would
be appreciated.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Mar 2006 03:24:20 +0000 |
| parents | d910939febfa |
| children | 8d9bb0cf2c2a |
| rev | line source |
|---|---|
| 1187 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 1187 | 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 |
| 1187 | 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. |
| 1187 | 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. |
| 1187 | 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 |
| 1187 | 18 |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
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22 #include "SDL_config.h" |
| 1187 | 23 |
| 24 #include <sys/time.h> | |
| 25 #include <sys/mman.h> | |
| 26 #include <sys/ioctl.h> | |
| 27 #include <dev/wscons/wsdisplay_usl_io.h> | |
| 28 #include <fcntl.h> | |
| 29 #include <unistd.h> | |
| 30 #include <errno.h> | |
| 31 | |
| 32 #include "SDL_video.h" | |
| 33 #include "SDL_mouse.h" | |
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34 #include "../SDL_sysvideo.h" |
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35 #include "../SDL_pixels_c.h" |
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36 #include "../../events/SDL_events_c.h" |
| 1187 | 37 |
| 38 #include "SDL_wsconsvideo.h" | |
| 39 #include "SDL_wsconsevents_c.h" | |
| 40 #include "SDL_wsconsmouse_c.h" | |
| 41 | |
| 42 #define WSCONSVID_DRIVER_NAME "wscons" | |
| 43 enum { | |
| 44 WSCONS_ROTATE_NONE = 0, | |
| 45 WSCONS_ROTATE_CCW = 90, | |
| 46 WSCONS_ROTATE_UD = 180, | |
| 47 WSCONS_ROTATE_CW = 270 | |
| 48 }; | |
| 49 | |
| 50 #define min(a,b) ((a)<(b)?(a):(b)) | |
| 51 | |
| 52 /* Initialization/Query functions */ | |
| 53 static int WSCONS_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 54 static SDL_Rect **WSCONS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 55 static SDL_Surface *WSCONS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 56 static int WSCONS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); | |
| 57 static void WSCONS_VideoQuit(_THIS); | |
| 58 | |
| 59 /* Hardware surface functions */ | |
| 60 static int WSCONS_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 61 static int WSCONS_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 62 static void WSCONS_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 63 static void WSCONS_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 64 | |
| 65 /* etc. */ | |
| 66 static WSCONS_bitBlit WSCONS_blit16; | |
| 67 static WSCONS_bitBlit WSCONS_blit16blocked; | |
| 68 static void WSCONS_UpdateRects(_THIS, int numrects, SDL_Rect *rects); | |
| 69 | |
| 70 void WSCONS_ReportError(char *fmt, ...) | |
| 71 { | |
| 72 char message[200]; | |
| 73 | |
| 74 message[199] = '\0'; | |
| 75 | |
| 76 va_list vaArgs; | |
| 77 va_start(vaArgs, fmt); | |
| 78 vsnprintf(message, 199, fmt, vaArgs); | |
| 79 va_end(vaArgs); | |
| 80 | |
| 81 SDL_SetError(message); | |
| 82 fprintf(stderr, "WSCONS error: %s\n", message); | |
| 83 } | |
| 84 | |
| 85 /* WSCONS driver bootstrap functions */ | |
| 86 | |
| 87 static int WSCONS_Available(void) | |
| 88 { | |
| 89 return 1; | |
| 90 } | |
| 91 | |
| 92 static void WSCONS_DeleteDevice(SDL_VideoDevice *device) | |
| 93 { | |
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94 SDL_free(device->hidden); |
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95 SDL_free(device); |
| 1187 | 96 } |
| 97 | |
| 98 static SDL_VideoDevice *WSCONS_CreateDevice(int devindex) | |
| 99 { | |
| 100 SDL_VideoDevice *device; | |
| 101 | |
| 102 /* Initialize all variables that we clean on shutdown */ | |
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103 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 1187 | 104 if (device == NULL) { |
| 105 SDL_OutOfMemory(); | |
| 106 return 0; | |
| 107 } | |
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108 SDL_memset(device, 0, (sizeof *device)); |
| 1187 | 109 device->hidden = |
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110 (struct SDL_PrivateVideoData *)SDL_malloc((sizeof *device->hidden)); |
| 1187 | 111 if (device->hidden == NULL) { |
| 112 SDL_OutOfMemory(); | |
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113 SDL_free(device); |
| 1187 | 114 return(0); |
| 115 } | |
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116 SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| 1187 | 117 device->hidden->fd = -1; |
| 118 | |
| 119 /* Set the function pointers */ | |
| 120 device->VideoInit = WSCONS_VideoInit; | |
| 121 device->ListModes = WSCONS_ListModes; | |
| 122 device->SetVideoMode = WSCONS_SetVideoMode; | |
| 123 device->SetColors = WSCONS_SetColors; | |
| 124 device->UpdateRects = WSCONS_UpdateRects; | |
| 125 device->VideoQuit = WSCONS_VideoQuit; | |
| 126 device->AllocHWSurface = WSCONS_AllocHWSurface; | |
| 127 device->LockHWSurface = WSCONS_LockHWSurface; | |
| 128 device->UnlockHWSurface = WSCONS_UnlockHWSurface; | |
| 129 device->FreeHWSurface = WSCONS_FreeHWSurface; | |
| 130 device->InitOSKeymap = WSCONS_InitOSKeymap; | |
| 131 device->PumpEvents = WSCONS_PumpEvents; | |
| 132 device->free = WSCONS_DeleteDevice; | |
| 133 | |
| 134 return device; | |
| 135 } | |
| 136 | |
| 137 VideoBootStrap WSCONS_bootstrap = { | |
| 138 WSCONSVID_DRIVER_NAME, | |
| 139 "SDL wscons video driver", | |
| 140 WSCONS_Available, | |
| 141 WSCONS_CreateDevice | |
| 142 }; | |
| 143 | |
| 144 #define WSCONSDEV_FORMAT "/dev/ttyC%01x" | |
| 145 | |
| 146 int WSCONS_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 147 { | |
| 148 char devnamebuf[30]; | |
| 149 char *devname; | |
| 150 char *rotation; | |
| 151 int wstype; | |
| 152 int wsmode = WSDISPLAYIO_MODE_DUMBFB; | |
| 153 size_t len, mapsize; | |
| 154 int pagemask; | |
| 155 int width, height; | |
| 156 | |
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157 devname = SDL_getenv("SDL_WSCONSDEV"); |
| 1187 | 158 if (devname == NULL) { |
| 159 int activeVT; | |
| 160 if (ioctl(STDIN_FILENO, VT_GETACTIVE, &activeVT) == -1) { | |
| 161 WSCONS_ReportError("Unable to determine active terminal: %s", | |
| 162 strerror(errno)); | |
| 163 return -1; | |
| 164 } | |
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165 SDL_snprintf(devnamebuf, sizeof(devnamebuf), WSCONSDEV_FORMAT, activeVT - 1); |
| 1187 | 166 devname = devnamebuf; |
| 167 } | |
| 168 | |
| 169 private->fd = open(devname, O_RDWR | O_NONBLOCK, 0); | |
| 170 if (private->fd == -1) { | |
| 171 WSCONS_ReportError("open %s: %s", devname, strerror(errno)); | |
| 172 return -1; | |
| 173 } | |
| 174 if (ioctl(private->fd, WSDISPLAYIO_GINFO, &private->info) == -1) { | |
| 175 WSCONS_ReportError("ioctl WSDISPLAY_GINFO: %s", strerror(errno)); | |
| 176 return -1; | |
| 177 } | |
| 178 if (ioctl(private->fd, WSDISPLAYIO_GTYPE, &wstype) == -1) { | |
| 179 WSCONS_ReportError("ioctl WSDISPLAY_GTYPE: %s", strerror(errno)); | |
| 180 return -1; | |
| 181 } | |
| 182 if (ioctl(private->fd, WSDISPLAYIO_LINEBYTES, &private->physlinebytes) == -1) { | |
| 183 WSCONS_ReportError("ioctl WSDISPLAYIO_LINEBYTES: %s", strerror(errno)); | |
| 184 return -1; | |
| 185 } | |
| 186 if (private->info.depth > 8) { | |
| 187 if (wstype == WSDISPLAY_TYPE_SUN24 || | |
| 188 wstype == WSDISPLAY_TYPE_SUNCG12 || | |
| 189 wstype == WSDISPLAY_TYPE_SUNCG14 || | |
| 190 wstype == WSDISPLAY_TYPE_SUNTCX || | |
| 191 wstype == WSDISPLAY_TYPE_SUNFFB) { | |
| 192 private->redMask = 0x0000ff; | |
| 193 private->greenMask = 0x00ff00; | |
| 194 private->blueMask = 0xff0000; | |
| 1383 | 195 #ifdef WSDISPLAY_TYPE_PXALCD |
| 1187 | 196 } else if (wstype == WSDISPLAY_TYPE_PXALCD) { |
| 197 private->redMask = 0x1f << 11; | |
| 198 private->greenMask = 0x3f << 5; | |
| 199 private->blueMask = 0x1f; | |
| 1383 | 200 #endif |
| 1187 | 201 } else { |
| 202 WSCONS_ReportError("Unknown video hardware"); | |
| 203 return -1; | |
| 204 } | |
| 205 } else { | |
| 206 WSCONS_ReportError("Displays with 8 bpp or less are not supported"); | |
| 207 return -1; | |
| 208 } | |
| 209 | |
| 210 private->rotate = WSCONS_ROTATE_NONE; | |
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211 rotation = SDL_getenv("SDL_VIDEO_WSCONS_ROTATION"); |
| 1187 | 212 if (rotation != NULL) { |
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213 if (SDL_strlen(rotation) == 0) { |
| 1187 | 214 private->shadowFB = 0; |
| 215 private->rotate = WSCONS_ROTATE_NONE; | |
| 216 printf("Not rotating, no shadow\n"); | |
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217 } else if (!SDL_strcmp(rotation, "NONE")) { |
| 1187 | 218 private->shadowFB = 1; |
| 219 private->rotate = WSCONS_ROTATE_NONE; | |
| 220 printf("Not rotating, but still using shadow\n"); | |
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221 } else if (!SDL_strcmp(rotation, "CW")) { |
| 1187 | 222 private->shadowFB = 1; |
| 223 private->rotate = WSCONS_ROTATE_CW; | |
| 224 printf("Rotating screen clockwise\n"); | |
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225 } else if (!SDL_strcmp(rotation, "CCW")) { |
| 1187 | 226 private->shadowFB = 1; |
| 227 private->rotate = WSCONS_ROTATE_CCW; | |
| 228 printf("Rotating screen counter clockwise\n"); | |
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229 } else if (!SDL_strcmp(rotation, "UD")) { |
| 1187 | 230 private->shadowFB = 1; |
| 231 private->rotate = WSCONS_ROTATE_UD; | |
| 232 printf("Rotating screen upside down\n"); | |
| 233 } else { | |
| 234 WSCONS_ReportError("\"%s\" is not a valid value for " | |
| 235 "SDL_VIDEO_WSCONS_ROTATION", rotation); | |
| 236 return -1; | |
| 237 } | |
| 238 } | |
| 239 | |
| 240 switch (private->info.depth) { | |
| 241 case 1: | |
| 242 case 4: | |
| 243 case 8: | |
| 244 len = private->physlinebytes * private->info.height; | |
| 245 break; | |
| 246 case 16: | |
| 247 if (private->physlinebytes == private->info.width) { | |
| 248 len = private->info.width * private->info.height * sizeof(short); | |
| 249 } else { | |
| 250 len = private->physlinebytes * private->info.height; | |
| 251 } | |
| 252 if (private->rotate == WSCONS_ROTATE_NONE || | |
| 253 private->rotate == WSCONS_ROTATE_UD) { | |
| 254 private->blitFunc = WSCONS_blit16; | |
| 255 } else { | |
| 256 private->blitFunc = WSCONS_blit16blocked; | |
| 257 } | |
| 258 break; | |
| 259 case 32: | |
| 260 if (private->physlinebytes == private->info.width) { | |
| 261 len = private->info.width * private->info.height * sizeof(int); | |
| 262 } else { | |
| 263 len = private->physlinebytes * private->info.height; | |
| 264 } | |
| 265 break; | |
| 266 default: | |
| 267 WSCONS_ReportError("unsupported depth %d", private->info.depth); | |
| 268 return -1; | |
| 269 } | |
| 270 | |
| 271 if (private->shadowFB && private->blitFunc == NULL) { | |
| 272 WSCONS_ReportError("Using software buffer, but no blitter function is " | |
| 273 "available for this %d bpp.", private->info.depth); | |
| 274 return -1; | |
| 275 } | |
| 276 | |
| 277 if (ioctl(private->fd, WSDISPLAYIO_SMODE, &wsmode) == -1) { | |
| 278 WSCONS_ReportError("ioctl SMODE"); | |
| 279 return -1; | |
| 280 } | |
| 281 | |
| 282 pagemask = getpagesize() - 1; | |
| 283 mapsize = ((int)len + pagemask) & ~pagemask; | |
| 284 private->physmem = (Uint8 *)mmap(NULL, mapsize, | |
| 285 PROT_READ | PROT_WRITE, MAP_SHARED, | |
| 286 private->fd, (off_t)0); | |
| 287 if (private->physmem == (Uint8 *)MAP_FAILED) { | |
| 288 private->physmem = NULL; | |
| 289 WSCONS_ReportError("mmap: %s", strerror(errno)); | |
| 290 return -1; | |
| 291 } | |
| 292 private->fbmem_len = len; | |
| 293 | |
| 294 if (private->rotate == WSCONS_ROTATE_CW || | |
| 295 private->rotate == WSCONS_ROTATE_CCW) { | |
| 296 width = private->info.height; | |
| 297 height = private->info.width; | |
| 298 } else { | |
| 299 width = private->info.width; | |
| 300 height = private->info.height; | |
| 301 } | |
| 302 | |
| 303 if (private->shadowFB) { | |
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304 private->shadowmem = (Uint8 *)SDL_malloc(len); |
| 1187 | 305 if (private->shadowmem == NULL) { |
| 306 WSCONS_ReportError("No memory for shadow"); | |
| 307 return -1; | |
| 308 } | |
| 309 private->fbstart = private->shadowmem; | |
| 310 private->fblinebytes = width * ((private->info.depth + 7) / 8); | |
| 311 } else { | |
| 312 private->fbstart = private->physmem; | |
| 313 private->fblinebytes = private->physlinebytes; | |
| 314 } | |
| 315 | |
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316 private->SDL_modelist[0] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect)); |
| 1187 | 317 private->SDL_modelist[0]->w = width; |
| 318 private->SDL_modelist[0]->h = height; | |
| 319 | |
| 320 vformat->BitsPerPixel = private->info.depth; | |
| 321 vformat->BytesPerPixel = private->info.depth / 8; | |
| 322 | |
| 323 if (WSCONS_InitKeyboard(this) == -1) { | |
| 324 return -1; | |
| 325 } | |
| 326 | |
| 327 return 0; | |
| 328 } | |
| 329 | |
| 330 SDL_Rect **WSCONS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 331 { | |
| 332 if (format->BitsPerPixel == private->info.depth) { | |
| 333 return private->SDL_modelist; | |
| 334 } else { | |
| 335 return NULL; | |
| 336 } | |
| 337 } | |
| 338 | |
| 339 SDL_Surface *WSCONS_SetVideoMode(_THIS, SDL_Surface *current, | |
| 340 int width, int height, int bpp, Uint32 flags) | |
| 341 { | |
| 342 if (width != private->SDL_modelist[0]->w || | |
| 343 height != private->SDL_modelist[0]->h) { | |
| 344 WSCONS_ReportError("Requested video mode %dx%d not supported.", | |
| 345 width, height); | |
| 346 return NULL; | |
| 347 } | |
| 348 if (bpp != private->info.depth) { | |
| 349 WSCONS_ReportError("Requested video depth %d bpp not supported.", bpp); | |
| 350 return NULL; | |
| 351 } | |
| 352 | |
| 353 if (!SDL_ReallocFormat(current, | |
| 354 bpp, | |
| 355 private->redMask, | |
| 356 private->greenMask, | |
| 357 private->blueMask, | |
| 358 0)) { | |
| 359 WSCONS_ReportError("Couldn't allocate new pixel format"); | |
| 360 return NULL; | |
| 361 } | |
| 362 | |
| 363 current->flags &= SDL_FULLSCREEN; | |
| 364 if (private->shadowFB) { | |
| 365 current->flags |= SDL_SWSURFACE; | |
| 366 } else { | |
| 367 current->flags |= SDL_HWSURFACE; | |
| 368 } | |
| 369 current->w = width; | |
| 370 current->h = height; | |
| 371 current->pitch = private->fblinebytes; | |
| 372 current->pixels = private->fbstart; | |
| 373 | |
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374 SDL_memset(private->fbstart, 0, private->fbmem_len); |
| 1187 | 375 |
| 376 return current; | |
| 377 } | |
| 378 | |
| 379 static int WSCONS_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 380 { | |
| 381 return -1; | |
| 382 } | |
| 383 static void WSCONS_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 384 { | |
| 385 } | |
| 386 | |
| 387 static int WSCONS_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 388 { | |
| 389 return 0; | |
| 390 } | |
| 391 | |
| 392 static void WSCONS_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 393 { | |
| 394 } | |
| 395 | |
| 396 static void WSCONS_blit16(Uint8 *byte_src_pos, | |
| 397 int srcRightDelta, | |
| 398 int srcDownDelta, | |
| 399 Uint8 *byte_dst_pos, | |
| 400 int dst_linebytes, | |
| 401 int width, | |
| 402 int height) | |
| 403 { | |
| 404 int w; | |
| 405 Uint16 *src_pos = (Uint16 *)byte_src_pos; | |
| 406 Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | |
| 407 | |
| 408 while (height) { | |
| 409 Uint16 *src = src_pos; | |
| 410 Uint16 *dst = dst_pos; | |
| 411 for (w = width; w != 0; w--) { | |
| 412 *dst = *src; | |
| 413 src += srcRightDelta; | |
| 414 dst++; | |
| 415 } | |
| 416 dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); | |
| 417 src_pos += srcDownDelta; | |
| 418 height--; | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 #define BLOCKSIZE_W 32 | |
| 423 #define BLOCKSIZE_H 32 | |
| 424 | |
| 425 static void WSCONS_blit16blocked(Uint8 *byte_src_pos, | |
| 426 int srcRightDelta, | |
| 427 int srcDownDelta, | |
| 428 Uint8 *byte_dst_pos, | |
| 429 int dst_linebytes, | |
| 430 int width, | |
| 431 int height) | |
| 432 { | |
| 433 int w; | |
| 434 Uint16 *src_pos = (Uint16 *)byte_src_pos; | |
| 435 Uint16 *dst_pos = (Uint16 *)byte_dst_pos; | |
| 436 | |
| 437 while (height > 0) { | |
| 438 Uint16 *src = src_pos; | |
| 439 Uint16 *dst = dst_pos; | |
| 440 for (w = width; w > 0; w -= BLOCKSIZE_W) { | |
| 441 WSCONS_blit16((Uint8 *)src, | |
| 442 srcRightDelta, | |
| 443 srcDownDelta, | |
| 444 (Uint8 *)dst, | |
| 445 dst_linebytes, | |
| 446 min(w, BLOCKSIZE_W), | |
| 447 min(height, BLOCKSIZE_H)); | |
| 448 src += srcRightDelta * BLOCKSIZE_W; | |
| 449 dst += BLOCKSIZE_W; | |
| 450 } | |
| 451 dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); | |
| 452 src_pos += srcDownDelta * BLOCKSIZE_H; | |
| 453 height -= BLOCKSIZE_H; | |
| 454 } | |
| 455 } | |
| 456 | |
| 457 static void WSCONS_UpdateRects(_THIS, int numrects, SDL_Rect *rects) | |
| 458 { | |
| 459 int width = private->SDL_modelist[0]->w; | |
| 460 int height = private->SDL_modelist[0]->h; | |
| 461 int bytesPerPixel = (private->info.depth + 7) / 8; | |
| 462 int i; | |
| 463 | |
| 464 if (!private->shadowFB) { | |
| 465 return; | |
| 466 } | |
| 467 | |
| 468 if (private->info.depth != 16) { | |
| 469 WSCONS_ReportError("Shadow copy only implemented for 16 bpp"); | |
| 470 return; | |
| 471 } | |
| 472 | |
| 473 for (i = 0; i < numrects; i++) { | |
| 474 int x1, y1, x2, y2; | |
| 475 int scr_x1, scr_y1, scr_x2, scr_y2; | |
| 476 int sha_x1, sha_y1; | |
| 477 int shadowRightDelta; /* Address change when moving right in dest */ | |
| 478 int shadowDownDelta; /* Address change when moving down in dest */ | |
| 479 Uint8 *src_start; | |
| 480 Uint8 *dst_start; | |
| 481 | |
| 482 x1 = rects[i].x; | |
| 483 y1 = rects[i].y; | |
| 484 x2 = x1 + rects[i].w; | |
| 485 y2 = y1 + rects[i].h; | |
| 486 | |
| 487 if (x1 < 0) { | |
| 488 x1 = 0; | |
| 489 } else if (x1 > width) { | |
| 490 x1 = width; | |
| 491 } | |
| 492 if (x2 < 0) { | |
| 493 x2 = 0; | |
| 494 } else if (x2 > width) { | |
| 495 x2 = width; | |
| 496 } | |
| 497 if (y1 < 0) { | |
| 498 y1 = 0; | |
| 499 } else if (y1 > height) { | |
| 500 y1 = height; | |
| 501 } | |
| 502 if (y2 < 0) { | |
| 503 y2 = 0; | |
| 504 } else if (y2 > height) { | |
| 505 y2 = height; | |
| 506 } | |
| 507 if (x2 <= x1 || y2 <= y1) { | |
| 508 continue; | |
| 509 } | |
| 510 | |
| 511 switch (private->rotate) { | |
| 512 case WSCONS_ROTATE_NONE: | |
| 513 sha_x1 = scr_x1 = x1; | |
| 514 sha_y1 = scr_y1 = y1; | |
| 515 scr_x2 = x2; | |
| 516 scr_y2 = y2; | |
| 517 shadowRightDelta = 1; | |
| 518 shadowDownDelta = width; | |
| 519 break; | |
| 520 case WSCONS_ROTATE_CCW: | |
| 521 scr_x1 = y1; | |
| 522 scr_y1 = width - x2; | |
| 523 scr_x2 = y2; | |
| 524 scr_y2 = width - x1; | |
| 525 sha_x1 = x2 - 1; | |
| 526 sha_y1 = y1; | |
| 527 shadowRightDelta = width; | |
| 528 shadowDownDelta = -1; | |
| 529 break; | |
| 530 case WSCONS_ROTATE_UD: | |
| 531 scr_x1 = width - x2; | |
| 532 scr_y1 = height - y2; | |
| 533 scr_x2 = width - x1; | |
| 534 scr_y2 = height - y1; | |
| 535 sha_x1 = x2 - 1; | |
| 536 sha_y1 = y2 - 1; | |
| 537 shadowRightDelta = -1; | |
| 538 shadowDownDelta = -width; | |
| 539 break; | |
| 540 case WSCONS_ROTATE_CW: | |
| 541 scr_x1 = height - y2; | |
| 542 scr_y1 = x1; | |
| 543 scr_x2 = height - y1; | |
| 544 scr_y2 = x2; | |
| 545 sha_x1 = x1; | |
| 546 sha_y1 = y2 - 1; | |
| 547 shadowRightDelta = -width; | |
| 548 shadowDownDelta = 1; | |
| 549 break; | |
| 550 default: | |
| 551 WSCONS_ReportError("Unknown rotation"); | |
| 552 return; | |
| 553 } | |
| 554 | |
| 555 src_start = private->shadowmem + (sha_y1 * width + sha_x1) * bytesPerPixel; | |
| 556 dst_start = private->physmem + scr_y1 * private->physlinebytes + | |
| 557 scr_x1 * bytesPerPixel; | |
| 558 | |
| 559 private->blitFunc(src_start, | |
| 560 shadowRightDelta, | |
| 561 shadowDownDelta, | |
| 562 dst_start, | |
| 563 private->physlinebytes, | |
| 564 scr_x2 - scr_x1, | |
| 565 scr_y2 - scr_y1); | |
| 566 } | |
| 567 } | |
| 568 | |
| 569 int WSCONS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 570 { | |
| 571 return 0; | |
| 572 } | |
| 573 | |
| 574 /* | |
| 575 * Note: If we are terminated, this could be called in the middle of | |
| 576 * another SDL video routine -- notably UpdateRects. | |
| 577 */ | |
| 578 void WSCONS_VideoQuit(_THIS) | |
| 579 { | |
| 580 int mode = WSDISPLAYIO_MODE_EMUL; | |
| 581 | |
| 582 if (private->shadowmem != NULL) { | |
|
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Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
583 SDL_free(private->shadowmem); |
| 1187 | 584 private->shadowmem = NULL; |
| 585 } | |
| 586 private->fbstart = NULL; | |
| 587 if (this->screen != NULL) { | |
| 588 this->screen->pixels = NULL; | |
| 589 } | |
| 590 | |
| 591 if (private->SDL_modelist[0] != NULL) { | |
|
1336
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Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1312
diff
changeset
|
592 SDL_free(private->SDL_modelist[0]); |
| 1187 | 593 private->SDL_modelist[0] = NULL; |
| 594 } | |
| 595 | |
| 596 if (ioctl(private->fd, WSDISPLAYIO_SMODE, &mode) == -1) { | |
| 597 WSCONS_ReportError("ioctl SMODE"); | |
| 598 } | |
| 599 | |
| 600 WSCONS_ReleaseKeyboard(this); | |
| 601 | |
| 602 if (private->fd != -1) { | |
| 603 close(private->fd); | |
| 604 private->fd = -1; | |
| 605 } | |
| 606 } |