| 1 | /************************************************************ |
| 2 | |
| 3 | Copyright 1987, 1989, 1998 The Open Group |
| 4 | |
| 5 | Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | documentation for any purpose is hereby granted without fee, provided that |
| 7 | the above copyright notice appear in all copies and that both that |
| 8 | copyright notice and this permission notice appear in supporting |
| 9 | documentation. |
| 10 | |
| 11 | The above copyright notice and this permission notice shall be included in |
| 12 | all copies or substantial portions of the Software. |
| 13 | |
| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | |
| 21 | Except as contained in this notice, the name of The Open Group shall not be |
| 22 | used in advertising or otherwise to promote the sale, use or other dealings |
| 23 | in this Software without prior written authorization from The Open Group. |
| 24 | |
| 25 | Copyright 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 26 | |
| 27 | All Rights Reserved |
| 28 | |
| 29 | Permission to use, copy, modify, and distribute this software and its |
| 30 | documentation for any purpose and without fee is hereby granted, |
| 31 | provided that the above copyright notice appear in all copies and that |
| 32 | both that copyright notice and this permission notice appear in |
| 33 | supporting documentation, and that the name of Digital not be |
| 34 | used in advertising or publicity pertaining to distribution of the |
| 35 | software without specific, written prior permission. |
| 36 | |
| 37 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 39 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 43 | SOFTWARE. |
| 44 | |
| 45 | ********************************************************/ |
| 46 | |
| 47 | /* The panoramix components contained the following notice */ |
| 48 | /***************************************************************** |
| 49 | |
| 50 | Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. |
| 51 | |
| 52 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 53 | of this software and associated documentation files (the "Software"), to deal |
| 54 | in the Software without restriction, including without limitation the rights |
| 55 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 56 | copies of the Software. |
| 57 | |
| 58 | The above copyright notice and this permission notice shall be included in |
| 59 | all copies or substantial portions of the Software. |
| 60 | |
| 61 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 62 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 63 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 64 | DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, |
| 65 | BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, |
| 66 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR |
| 67 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 68 | |
| 69 | Except as contained in this notice, the name of Digital Equipment Corporation |
| 70 | shall not be used in advertising or otherwise to promote the sale, use or other |
| 71 | dealings in this Software without prior written authorization from Digital |
| 72 | Equipment Corporation. |
| 73 | |
| 74 | ******************************************************************/ |
| 75 | |
| 76 | /* XSERVER_DTRACE additions: |
| 77 | * Copyright (c) 2005-2006, Oracle and/or its affiliates. All rights reserved. |
| 78 | * |
| 79 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 80 | * copy of this software and associated documentation files (the "Software"), |
| 81 | * to deal in the Software without restriction, including without limitation |
| 82 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 83 | * and/or sell copies of the Software, and to permit persons to whom the |
| 84 | * Software is furnished to do so, subject to the following conditions: |
| 85 | * |
| 86 | * The above copyright notice and this permission notice (including the next |
| 87 | * paragraph) shall be included in all copies or substantial portions of the |
| 88 | * Software. |
| 89 | * |
| 90 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 91 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 92 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 93 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 94 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 95 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 96 | * DEALINGS IN THE SOFTWARE. |
| 97 | */ |
| 98 | |
| 99 | #ifdef HAVE_DIX_CONFIG_H |
| 100 | #include <dix-config.h> |
| 101 | #include <version-config.h> |
| 102 | #endif |
| 103 | |
| 104 | #ifdef PANORAMIX_DEBUG |
| 105 | #include <stdio.h> |
| 106 | int ProcInitialConnection(); |
| 107 | #endif |
| 108 | |
| 109 | #include "windowstr.h" |
| 110 | #include <X11/fonts/fontstruct.h> |
| 111 | #include "dixfontstr.h" |
| 112 | #include "gcstruct.h" |
| 113 | #include "selection.h" |
| 114 | #include "colormapst.h" |
| 115 | #include "cursorstr.h" |
| 116 | #include "scrnintstr.h" |
| 117 | #include "opaque.h" |
| 118 | #include "input.h" |
| 119 | #include "servermd.h" |
| 120 | #include "extnsionst.h" |
| 121 | #include "dixfont.h" |
| 122 | #include "dispatch.h" |
| 123 | #include "swaprep.h" |
| 124 | #include "swapreq.h" |
| 125 | #include "privates.h" |
| 126 | #include "xace.h" |
| 127 | #include "inputstr.h" |
| 128 | #include "xkbsrv.h" |
| 129 | #include "site.h" |
| 130 | #include "client.h" |
| 131 | |
| 132 | #ifdef XSERVER_DTRACE |
| 133 | #include "registry.h" |
| 134 | #include <sys/types.h> |
| 135 | typedef const char *string; |
| 136 | |
| 137 | #include "Xserver-dtrace.h" |
| 138 | #endif |
| 139 | |
| 140 | #define mskcnt ((MAXCLIENTS + 31) / 32) |
| 141 | #define BITMASK(i) (1U << ((i) & 31)) |
| 142 | #define MASKIDX(i) ((i) >> 5) |
| 143 | #define MASKWORD(buf, i) buf[MASKIDX(i)] |
| 144 | #define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i) |
| 145 | #define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i) |
| 146 | #define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i)) |
| 147 | |
| 148 | xConnSetupPrefix connSetupPrefix; |
| 149 | |
| 150 | PaddingInfo PixmapWidthPaddingInfo[33]; |
| 151 | |
| 152 | static ClientPtr grabClient; |
| 153 | |
| 154 | #define GrabNone 0 |
| 155 | #define GrabActive 1 |
| 156 | #define GrabKickout 2 |
| 157 | static int grabState = GrabNone; |
| 158 | static long grabWaiters[mskcnt]; |
| 159 | CallbackListPtr ServerGrabCallback = NULL; |
| 160 | HWEventQueuePtr checkForInput[2]; |
| 161 | int connBlockScreenStart; |
| 162 | |
| 163 | static void KillAllClients(void); |
| 164 | |
| 165 | static int nextFreeClientID; /* always MIN free client ID */ |
| 166 | |
| 167 | static int nClients; /* number of authorized clients */ |
| 168 | |
| 169 | CallbackListPtr ClientStateCallback; |
| 170 | |
| 171 | /* dispatchException & isItTimeToYield must be declared volatile since they |
| 172 | * are modified by signal handlers - otherwise optimizer may assume it doesn't |
| 173 | * need to actually check value in memory when used and may miss changes from |
| 174 | * signal handlers. |
| 175 | */ |
| 176 | volatile char dispatchException = 0; |
| 177 | volatile char isItTimeToYield; |
| 178 | |
| 179 | #define SAME_SCREENS(a, b) (\ |
| 180 | (a.pScreen == b.pScreen)) |
| 181 | |
| 182 | void |
| 183 | SetInputCheck(HWEventQueuePtr c0, HWEventQueuePtr c1) |
| 184 | { |
| 185 | checkForInput[0] = c0; |
| 186 | checkForInput[1] = c1; |
| 187 | } |
| 188 | |
| 189 | void |
| 190 | UpdateCurrentTime(void) |
| 191 | { |
| 192 | TimeStamp systime; |
| 193 | |
| 194 | /* To avoid time running backwards, we must call GetTimeInMillis before |
| 195 | * calling ProcessInputEvents. |
| 196 | */ |
| 197 | systime.months = currentTime.months; |
| 198 | systime.milliseconds = GetTimeInMillis(); |
| 199 | if (systime.milliseconds < currentTime.milliseconds) |
| 200 | systime.months++; |
| 201 | if (*checkForInput[0] != *checkForInput[1]) |
| 202 | ProcessInputEvents(); |
| 203 | if (CompareTimeStamps(systime, currentTime) == LATER) |
| 204 | currentTime = systime; |
| 205 | } |
| 206 | |
| 207 | /* Like UpdateCurrentTime, but can't call ProcessInputEvents */ |
| 208 | void |
| 209 | UpdateCurrentTimeIf(void) |
| 210 | { |
| 211 | TimeStamp systime; |
| 212 | |
| 213 | systime.months = currentTime.months; |
| 214 | systime.milliseconds = GetTimeInMillis(); |
| 215 | if (systime.milliseconds < currentTime.milliseconds) |
| 216 | systime.months++; |
| 217 | if (CompareTimeStamps(systime, currentTime) == LATER) |
| 218 | currentTime = systime; |
| 219 | } |
| 220 | |
| 221 | #undef SMART_DEBUG |
| 222 | |
| 223 | /* in milliseconds */ |
| 224 | #define SMART_SCHEDULE_DEFAULT_INTERVAL 5 |
| 225 | #define SMART_SCHEDULE_MAX_SLICE 15 |
| 226 | |
| 227 | #if defined(WIN32) && !defined(__CYGWIN__) |
| 228 | Bool SmartScheduleDisable = TRUE; |
| 229 | #else |
| 230 | Bool SmartScheduleDisable = FALSE; |
| 231 | #endif |
| 232 | long SmartScheduleSlice = SMART_SCHEDULE_DEFAULT_INTERVAL; |
| 233 | long SmartScheduleInterval = SMART_SCHEDULE_DEFAULT_INTERVAL; |
| 234 | long SmartScheduleMaxSlice = SMART_SCHEDULE_MAX_SLICE; |
| 235 | long SmartScheduleTime; |
| 236 | int SmartScheduleLatencyLimited = 0; |
| 237 | static ClientPtr SmartLastClient; |
| 238 | static int SmartLastIndex[SMART_MAX_PRIORITY - SMART_MIN_PRIORITY + 1]; |
| 239 | |
| 240 | #ifdef SMART_DEBUG |
| 241 | long SmartLastPrint; |
| 242 | #endif |
| 243 | |
| 244 | void Dispatch(void); |
| 245 | |
| 246 | static int |
| 247 | SmartScheduleClient(int *clientReady, int nready) |
| 248 | { |
| 249 | ClientPtr pClient; |
| 250 | int i; |
| 251 | int client; |
| 252 | int bestPrio, best = 0; |
| 253 | int bestRobin, robin; |
| 254 | long now = SmartScheduleTime; |
| 255 | long idle; |
| 256 | |
| 257 | bestPrio = -0x7fffffff; |
| 258 | bestRobin = 0; |
| 259 | idle = 2 * SmartScheduleSlice; |
| 260 | for (i = 0; i < nready; i++) { |
| 261 | client = clientReady[i]; |
| 262 | pClient = clients[client]; |
| 263 | /* Praise clients which are idle */ |
| 264 | if ((now - pClient->smart_check_tick) >= idle) { |
| 265 | if (pClient->smart_priority < 0) |
| 266 | pClient->smart_priority++; |
| 267 | } |
| 268 | pClient->smart_check_tick = now; |
| 269 | |
| 270 | /* check priority to select best client */ |
| 271 | robin = |
| 272 | (pClient->index - |
| 273 | SmartLastIndex[pClient->smart_priority - |
| 274 | SMART_MIN_PRIORITY]) & 0xff; |
| 275 | if (pClient->smart_priority > bestPrio || |
| 276 | (pClient->smart_priority == bestPrio && robin > bestRobin)) { |
| 277 | bestPrio = pClient->smart_priority; |
| 278 | bestRobin = robin; |
| 279 | best = client; |
| 280 | } |
| 281 | #ifdef SMART_DEBUG |
| 282 | if ((now - SmartLastPrint) >= 5000) |
| 283 | fprintf(stderr, " %2d: %3d", client, pClient->smart_priority); |
| 284 | #endif |
| 285 | } |
| 286 | #ifdef SMART_DEBUG |
| 287 | if ((now - SmartLastPrint) >= 5000) { |
| 288 | fprintf(stderr, " use %2d\n", best); |
| 289 | SmartLastPrint = now; |
| 290 | } |
| 291 | #endif |
| 292 | pClient = clients[best]; |
| 293 | SmartLastIndex[bestPrio - SMART_MIN_PRIORITY] = pClient->index; |
| 294 | /* |
| 295 | * Set current client pointer |
| 296 | */ |
| 297 | if (SmartLastClient != pClient) { |
| 298 | pClient->smart_start_tick = now; |
| 299 | SmartLastClient = pClient; |
| 300 | } |
| 301 | /* |
| 302 | * Adjust slice |
| 303 | */ |
| 304 | if (nready == 1 && SmartScheduleLatencyLimited == 0) { |
| 305 | /* |
| 306 | * If it's been a long time since another client |
| 307 | * has run, bump the slice up to get maximal |
| 308 | * performance from a single client |
| 309 | */ |
| 310 | if ((now - pClient->smart_start_tick) > 1000 && |
| 311 | SmartScheduleSlice < SmartScheduleMaxSlice) { |
| 312 | SmartScheduleSlice += SmartScheduleInterval; |
| 313 | } |
| 314 | } |
| 315 | else { |
| 316 | SmartScheduleSlice = SmartScheduleInterval; |
| 317 | } |
| 318 | return best; |
| 319 | } |
| 320 | |
| 321 | void |
| 322 | EnableLimitedSchedulingLatency(void) |
| 323 | { |
| 324 | ++SmartScheduleLatencyLimited; |
| 325 | SmartScheduleSlice = SmartScheduleInterval; |
| 326 | } |
| 327 | |
| 328 | void |
| 329 | DisableLimitedSchedulingLatency(void) |
| 330 | { |
| 331 | --SmartScheduleLatencyLimited; |
| 332 | |
| 333 | /* protect against bugs */ |
| 334 | if (SmartScheduleLatencyLimited < 0) |
| 335 | SmartScheduleLatencyLimited = 0; |
| 336 | } |
| 337 | |
| 338 | void |
| 339 | Dispatch(void) |
| 340 | { |
| 341 | int *clientReady; /* array of request ready clients */ |
| 342 | int result; |
| 343 | ClientPtr client; |
| 344 | int nready; |
| 345 | HWEventQueuePtr *icheck = checkForInput; |
| 346 | long start_tick; |
| 347 | |
| 348 | nextFreeClientID = 1; |
| 349 | nClients = 0; |
| 350 | |
| 351 | clientReady = malloc(sizeof(int) * MaxClients); |
| 352 | if (!clientReady) |
| 353 | return; |
| 354 | |
| 355 | SmartScheduleSlice = SmartScheduleInterval; |
| 356 | while (!dispatchException) { |
| 357 | if (*icheck[0] != *icheck[1]) { |
| 358 | ProcessInputEvents(); |
| 359 | FlushIfCriticalOutputPending(); |
| 360 | } |
| 361 | |
| 362 | nready = WaitForSomething(clientReady); |
| 363 | |
| 364 | if (nready && !SmartScheduleDisable) { |
| 365 | clientReady[0] = SmartScheduleClient(clientReady, nready); |
| 366 | nready = 1; |
| 367 | } |
| 368 | /***************** |
| 369 | * Handle events in round robin fashion, doing input between |
| 370 | * each round |
| 371 | *****************/ |
| 372 | |
| 373 | while (!dispatchException && (--nready >= 0)) { |
| 374 | client = clients[clientReady[nready]]; |
| 375 | if (!client) { |
| 376 | /* KillClient can cause this to happen */ |
| 377 | continue; |
| 378 | } |
| 379 | /* GrabServer activation can cause this to be true */ |
| 380 | if (grabState == GrabKickout) { |
| 381 | grabState = GrabActive; |
| 382 | break; |
| 383 | } |
| 384 | isItTimeToYield = FALSE; |
| 385 | |
| 386 | start_tick = SmartScheduleTime; |
| 387 | while (!isItTimeToYield) { |
| 388 | if (*icheck[0] != *icheck[1]) |
| 389 | ProcessInputEvents(); |
| 390 | |
| 391 | FlushIfCriticalOutputPending(); |
| 392 | if (!SmartScheduleDisable && |
| 393 | (SmartScheduleTime - start_tick) >= SmartScheduleSlice) { |
| 394 | /* Penalize clients which consume ticks */ |
| 395 | if (client->smart_priority > SMART_MIN_PRIORITY) |
| 396 | client->smart_priority--; |
| 397 | break; |
| 398 | } |
| 399 | /* now, finally, deal with client requests */ |
| 400 | |
| 401 | /* Update currentTime so request time checks, such as for input |
| 402 | * device grabs, are calculated correctly */ |
| 403 | UpdateCurrentTimeIf(); |
| 404 | result = ReadRequestFromClient(client); |
| 405 | if (result <= 0) { |
| 406 | if (result < 0) |
| 407 | CloseDownClient(client); |
| 408 | break; |
| 409 | } |
| 410 | |
| 411 | client->sequence++; |
| 412 | client->majorOp = ((xReq *) client->requestBuffer)->reqType; |
| 413 | client->minorOp = 0; |
| 414 | if (client->majorOp >= EXTENSION_BASE) { |
| 415 | ExtensionEntry *ext = GetExtensionEntry(client->majorOp); |
| 416 | |
| 417 | if (ext) |
| 418 | client->minorOp = ext->MinorOpcode(client); |
| 419 | } |
| 420 | #ifdef XSERVER_DTRACE |
| 421 | if (XSERVER_REQUEST_START_ENABLED()) |
| 422 | XSERVER_REQUEST_START(LookupMajorName(client->majorOp), |
| 423 | client->majorOp, |
| 424 | ((xReq *) client->requestBuffer)->length, |
| 425 | client->index, |
| 426 | client->requestBuffer); |
| 427 | #endif |
| 428 | if (result > (maxBigRequestSize << 2)) |
| 429 | result = BadLength; |
| 430 | else { |
| 431 | result = XaceHookDispatch(client, client->majorOp); |
| 432 | if (result == Success) |
| 433 | result = |
| 434 | (*client->requestVector[client->majorOp]) (client); |
| 435 | XaceHookAuditEnd(client, result); |
| 436 | } |
| 437 | #ifdef XSERVER_DTRACE |
| 438 | if (XSERVER_REQUEST_DONE_ENABLED()) |
| 439 | XSERVER_REQUEST_DONE(LookupMajorName(client->majorOp), |
| 440 | client->majorOp, client->sequence, |
| 441 | client->index, result); |
| 442 | #endif |
| 443 | |
| 444 | if (client->noClientException != Success) { |
| 445 | CloseDownClient(client); |
| 446 | break; |
| 447 | } |
| 448 | else if (result != Success) { |
| 449 | SendErrorToClient(client, client->majorOp, |
| 450 | client->minorOp, |
| 451 | client->errorValue, result); |
| 452 | break; |
| 453 | } |
| 454 | } |
| 455 | FlushAllOutput(); |
| 456 | client = clients[clientReady[nready]]; |
| 457 | if (client) |
| 458 | client->smart_stop_tick = SmartScheduleTime; |
| 459 | } |
| 460 | dispatchException &= ~DE_PRIORITYCHANGE; |
| 461 | } |
| 462 | #if defined(DDXBEFORERESET) |
| 463 | ddxBeforeReset(); |
| 464 | #endif |
| 465 | KillAllClients(); |
| 466 | free(clientReady); |
| 467 | dispatchException &= ~DE_RESET; |
| 468 | SmartScheduleLatencyLimited = 0; |
| 469 | ResetOsBuffers(); |
| 470 | } |
| 471 | |
| 472 | static int VendorRelease = VENDOR_RELEASE; |
| 473 | static char *VendorString = VENDOR_NAME; |
| 474 | |
| 475 | void |
| 476 | SetVendorRelease(int release) |
| 477 | { |
| 478 | VendorRelease = release; |
| 479 | } |
| 480 | |
| 481 | void |
| 482 | SetVendorString(char *string) |
| 483 | { |
| 484 | VendorString = string; |
| 485 | } |
| 486 | |
| 487 | Bool |
| 488 | CreateConnectionBlock(void) |
| 489 | { |
| 490 | xConnSetup setup; |
| 491 | xWindowRoot root; |
| 492 | xDepth depth; |
| 493 | xVisualType visual; |
| 494 | xPixmapFormat format; |
| 495 | unsigned long vid; |
| 496 | int i, j, k, lenofblock, sizesofar = 0; |
| 497 | char *pBuf; |
| 498 | |
| 499 | memset(&setup, 0, sizeof(xConnSetup)); |
| 500 | /* Leave off the ridBase and ridMask, these must be sent with |
| 501 | connection */ |
| 502 | |
| 503 | setup.release = VendorRelease; |
| 504 | /* |
| 505 | * per-server image and bitmap parameters are defined in Xmd.h |
| 506 | */ |
| 507 | setup.imageByteOrder = screenInfo.imageByteOrder; |
| 508 | |
| 509 | setup.bitmapScanlineUnit = screenInfo.bitmapScanlineUnit; |
| 510 | setup.bitmapScanlinePad = screenInfo.bitmapScanlinePad; |
| 511 | |
| 512 | setup.bitmapBitOrder = screenInfo.bitmapBitOrder; |
| 513 | setup.motionBufferSize = NumMotionEvents(); |
| 514 | setup.numRoots = screenInfo.numScreens; |
| 515 | setup.nbytesVendor = strlen(VendorString); |
| 516 | setup.numFormats = screenInfo.numPixmapFormats; |
| 517 | setup.maxRequestSize = MAX_REQUEST_SIZE; |
| 518 | QueryMinMaxKeyCodes(&setup.minKeyCode, &setup.maxKeyCode); |
| 519 | |
| 520 | lenofblock = sizeof(xConnSetup) + |
| 521 | pad_to_int32(setup.nbytesVendor) + |
| 522 | (setup.numFormats * sizeof(xPixmapFormat)) + |
| 523 | (setup.numRoots * sizeof(xWindowRoot)); |
| 524 | ConnectionInfo = malloc(lenofblock); |
| 525 | if (!ConnectionInfo) |
| 526 | return FALSE; |
| 527 | |
| 528 | memmove(ConnectionInfo, (char *) &setup, sizeof(xConnSetup)); |
| 529 | sizesofar = sizeof(xConnSetup); |
| 530 | pBuf = ConnectionInfo + sizeof(xConnSetup); |
| 531 | |
| 532 | memmove(pBuf, VendorString, (int) setup.nbytesVendor); |
| 533 | sizesofar += setup.nbytesVendor; |
| 534 | pBuf += setup.nbytesVendor; |
| 535 | i = padding_for_int32(setup.nbytesVendor); |
| 536 | sizesofar += i; |
| 537 | while (--i >= 0) |
| 538 | *pBuf++ = 0; |
| 539 | |
| 540 | memset(&format, 0, sizeof(xPixmapFormat)); |
| 541 | for (i = 0; i < screenInfo.numPixmapFormats; i++) { |
| 542 | format.depth = screenInfo.formats[i].depth; |
| 543 | format.bitsPerPixel = screenInfo.formats[i].bitsPerPixel; |
| 544 | format.scanLinePad = screenInfo.formats[i].scanlinePad; |
| 545 | memmove(pBuf, (char *) &format, sizeof(xPixmapFormat)); |
| 546 | pBuf += sizeof(xPixmapFormat); |
| 547 | sizesofar += sizeof(xPixmapFormat); |
| 548 | } |
| 549 | |
| 550 | connBlockScreenStart = sizesofar; |
| 551 | memset(&depth, 0, sizeof(xDepth)); |
| 552 | memset(&visual, 0, sizeof(xVisualType)); |
| 553 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 554 | ScreenPtr pScreen; |
| 555 | DepthPtr pDepth; |
| 556 | VisualPtr pVisual; |
| 557 | |
| 558 | pScreen = screenInfo.screens[i]; |
| 559 | root.windowId = pScreen->root->drawable.id; |
| 560 | root.defaultColormap = pScreen->defColormap; |
| 561 | root.whitePixel = pScreen->whitePixel; |
| 562 | root.blackPixel = pScreen->blackPixel; |
| 563 | root.currentInputMask = 0; /* filled in when sent */ |
| 564 | root.pixWidth = pScreen->width; |
| 565 | root.pixHeight = pScreen->height; |
| 566 | root.mmWidth = pScreen->mmWidth; |
| 567 | root.mmHeight = pScreen->mmHeight; |
| 568 | root.minInstalledMaps = pScreen->minInstalledCmaps; |
| 569 | root.maxInstalledMaps = pScreen->maxInstalledCmaps; |
| 570 | root.rootVisualID = pScreen->rootVisual; |
| 571 | root.backingStore = pScreen->backingStoreSupport; |
| 572 | root.saveUnders = FALSE; |
| 573 | root.rootDepth = pScreen->rootDepth; |
| 574 | root.nDepths = pScreen->numDepths; |
| 575 | memmove(pBuf, (char *) &root, sizeof(xWindowRoot)); |
| 576 | sizesofar += sizeof(xWindowRoot); |
| 577 | pBuf += sizeof(xWindowRoot); |
| 578 | |
| 579 | pDepth = pScreen->allowedDepths; |
| 580 | for (j = 0; j < pScreen->numDepths; j++, pDepth++) { |
| 581 | lenofblock += sizeof(xDepth) + |
| 582 | (pDepth->numVids * sizeof(xVisualType)); |
| 583 | pBuf = (char *) realloc(ConnectionInfo, lenofblock); |
| 584 | if (!pBuf) { |
| 585 | free(ConnectionInfo); |
| 586 | return FALSE; |
| 587 | } |
| 588 | ConnectionInfo = pBuf; |
| 589 | pBuf += sizesofar; |
| 590 | depth.depth = pDepth->depth; |
| 591 | depth.nVisuals = pDepth->numVids; |
| 592 | memmove(pBuf, (char *) &depth, sizeof(xDepth)); |
| 593 | pBuf += sizeof(xDepth); |
| 594 | sizesofar += sizeof(xDepth); |
| 595 | for (k = 0; k < pDepth->numVids; k++) { |
| 596 | vid = pDepth->vids[k]; |
| 597 | for (pVisual = pScreen->visuals; |
| 598 | pVisual->vid != vid; pVisual++); |
| 599 | visual.visualID = vid; |
| 600 | visual.class = pVisual->class; |
| 601 | visual.bitsPerRGB = pVisual->bitsPerRGBValue; |
| 602 | visual.colormapEntries = pVisual->ColormapEntries; |
| 603 | visual.redMask = pVisual->redMask; |
| 604 | visual.greenMask = pVisual->greenMask; |
| 605 | visual.blueMask = pVisual->blueMask; |
| 606 | memmove(pBuf, (char *) &visual, sizeof(xVisualType)); |
| 607 | pBuf += sizeof(xVisualType); |
| 608 | sizesofar += sizeof(xVisualType); |
| 609 | } |
| 610 | } |
| 611 | } |
| 612 | connSetupPrefix.success = xTrue; |
| 613 | connSetupPrefix.length = lenofblock / 4; |
| 614 | connSetupPrefix.majorVersion = X_PROTOCOL; |
| 615 | connSetupPrefix.minorVersion = X_PROTOCOL_REVISION; |
| 616 | return TRUE; |
| 617 | } |
| 618 | |
| 619 | int |
| 620 | ProcBadRequest(ClientPtr client) |
| 621 | { |
| 622 | return BadRequest; |
| 623 | } |
| 624 | |
| 625 | int |
| 626 | ProcCreateWindow(ClientPtr client) |
| 627 | { |
| 628 | WindowPtr pParent, pWin; |
| 629 | |
| 630 | REQUEST(xCreateWindowReq); |
| 631 | int len, rc; |
| 632 | |
| 633 | REQUEST_AT_LEAST_SIZE(xCreateWindowReq); |
| 634 | |
| 635 | LEGAL_NEW_RESOURCE(stuff->wid, client); |
| 636 | rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess); |
| 637 | if (rc != Success) |
| 638 | return rc; |
| 639 | len = client->req_len - bytes_to_int32(sizeof(xCreateWindowReq)); |
| 640 | if (Ones(stuff->mask) != len) |
| 641 | return BadLength; |
| 642 | if (!stuff->width || !stuff->height) { |
| 643 | client->errorValue = 0; |
| 644 | return BadValue; |
| 645 | } |
| 646 | pWin = CreateWindow(stuff->wid, pParent, stuff->x, |
| 647 | stuff->y, stuff->width, stuff->height, |
| 648 | stuff->borderWidth, stuff->class, |
| 649 | stuff->mask, (XID *) &stuff[1], |
| 650 | (int) stuff->depth, client, stuff->visual, &rc); |
| 651 | if (pWin) { |
| 652 | Mask mask = pWin->eventMask; |
| 653 | |
| 654 | pWin->eventMask = 0; /* subterfuge in case AddResource fails */ |
| 655 | if (!AddResource(stuff->wid, RT_WINDOW, (pointer) pWin)) |
| 656 | return BadAlloc; |
| 657 | pWin->eventMask = mask; |
| 658 | } |
| 659 | return rc; |
| 660 | } |
| 661 | |
| 662 | int |
| 663 | ProcChangeWindowAttributes(ClientPtr client) |
| 664 | { |
| 665 | WindowPtr pWin; |
| 666 | |
| 667 | REQUEST(xChangeWindowAttributesReq); |
| 668 | int len, rc; |
| 669 | Mask access_mode = 0; |
| 670 | |
| 671 | REQUEST_AT_LEAST_SIZE(xChangeWindowAttributesReq); |
| 672 | access_mode |= (stuff->valueMask & CWEventMask) ? DixReceiveAccess : 0; |
| 673 | access_mode |= (stuff->valueMask & ~CWEventMask) ? DixSetAttrAccess : 0; |
| 674 | rc = dixLookupWindow(&pWin, stuff->window, client, access_mode); |
| 675 | if (rc != Success) |
| 676 | return rc; |
| 677 | len = client->req_len - bytes_to_int32(sizeof(xChangeWindowAttributesReq)); |
| 678 | if (len != Ones(stuff->valueMask)) |
| 679 | return BadLength; |
| 680 | return ChangeWindowAttributes(pWin, |
| 681 | stuff->valueMask, (XID *) &stuff[1], client); |
| 682 | } |
| 683 | |
| 684 | int |
| 685 | ProcGetWindowAttributes(ClientPtr client) |
| 686 | { |
| 687 | WindowPtr pWin; |
| 688 | |
| 689 | REQUEST(xResourceReq); |
| 690 | xGetWindowAttributesReply wa; |
| 691 | int rc; |
| 692 | |
| 693 | REQUEST_SIZE_MATCH(xResourceReq); |
| 694 | rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess); |
| 695 | if (rc != Success) |
| 696 | return rc; |
| 697 | memset(&wa, 0, sizeof(xGetWindowAttributesReply)); |
| 698 | GetWindowAttributes(pWin, client, &wa); |
| 699 | WriteReplyToClient(client, sizeof(xGetWindowAttributesReply), &wa); |
| 700 | return Success; |
| 701 | } |
| 702 | |
| 703 | int |
| 704 | ProcDestroyWindow(ClientPtr client) |
| 705 | { |
| 706 | WindowPtr pWin; |
| 707 | |
| 708 | REQUEST(xResourceReq); |
| 709 | int rc; |
| 710 | |
| 711 | REQUEST_SIZE_MATCH(xResourceReq); |
| 712 | rc = dixLookupWindow(&pWin, stuff->id, client, DixDestroyAccess); |
| 713 | if (rc != Success) |
| 714 | return rc; |
| 715 | if (pWin->parent) { |
| 716 | rc = dixLookupWindow(&pWin, pWin->parent->drawable.id, client, |
| 717 | DixRemoveAccess); |
| 718 | if (rc != Success) |
| 719 | return rc; |
| 720 | FreeResource(stuff->id, RT_NONE); |
| 721 | } |
| 722 | return Success; |
| 723 | } |
| 724 | |
| 725 | int |
| 726 | ProcDestroySubwindows(ClientPtr client) |
| 727 | { |
| 728 | WindowPtr pWin; |
| 729 | |
| 730 | REQUEST(xResourceReq); |
| 731 | int rc; |
| 732 | |
| 733 | REQUEST_SIZE_MATCH(xResourceReq); |
| 734 | rc = dixLookupWindow(&pWin, stuff->id, client, DixRemoveAccess); |
| 735 | if (rc != Success) |
| 736 | return rc; |
| 737 | DestroySubwindows(pWin, client); |
| 738 | return Success; |
| 739 | } |
| 740 | |
| 741 | int |
| 742 | ProcChangeSaveSet(ClientPtr client) |
| 743 | { |
| 744 | WindowPtr pWin; |
| 745 | |
| 746 | REQUEST(xChangeSaveSetReq); |
| 747 | int rc; |
| 748 | |
| 749 | REQUEST_SIZE_MATCH(xChangeSaveSetReq); |
| 750 | rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); |
| 751 | if (rc != Success) |
| 752 | return rc; |
| 753 | if (client->clientAsMask == (CLIENT_BITS(pWin->drawable.id))) |
| 754 | return BadMatch; |
| 755 | if ((stuff->mode == SetModeInsert) || (stuff->mode == SetModeDelete)) |
| 756 | return AlterSaveSetForClient(client, pWin, stuff->mode, FALSE, TRUE); |
| 757 | client->errorValue = stuff->mode; |
| 758 | return BadValue; |
| 759 | } |
| 760 | |
| 761 | int |
| 762 | ProcReparentWindow(ClientPtr client) |
| 763 | { |
| 764 | WindowPtr pWin, pParent; |
| 765 | |
| 766 | REQUEST(xReparentWindowReq); |
| 767 | int rc; |
| 768 | |
| 769 | REQUEST_SIZE_MATCH(xReparentWindowReq); |
| 770 | rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); |
| 771 | if (rc != Success) |
| 772 | return rc; |
| 773 | rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess); |
| 774 | if (rc != Success) |
| 775 | return rc; |
| 776 | if (!SAME_SCREENS(pWin->drawable, pParent->drawable)) |
| 777 | return BadMatch; |
| 778 | if ((pWin->backgroundState == ParentRelative) && |
| 779 | (pParent->drawable.depth != pWin->drawable.depth)) |
| 780 | return BadMatch; |
| 781 | if ((pWin->drawable.class != InputOnly) && |
| 782 | (pParent->drawable.class == InputOnly)) |
| 783 | return BadMatch; |
| 784 | return ReparentWindow(pWin, pParent, |
| 785 | (short) stuff->x, (short) stuff->y, client); |
| 786 | } |
| 787 | |
| 788 | int |
| 789 | ProcMapWindow(ClientPtr client) |
| 790 | { |
| 791 | WindowPtr pWin; |
| 792 | |
| 793 | REQUEST(xResourceReq); |
| 794 | int rc; |
| 795 | |
| 796 | REQUEST_SIZE_MATCH(xResourceReq); |
| 797 | rc = dixLookupWindow(&pWin, stuff->id, client, DixShowAccess); |
| 798 | if (rc != Success) |
| 799 | return rc; |
| 800 | MapWindow(pWin, client); |
| 801 | /* update cache to say it is mapped */ |
| 802 | return Success; |
| 803 | } |
| 804 | |
| 805 | int |
| 806 | ProcMapSubwindows(ClientPtr client) |
| 807 | { |
| 808 | WindowPtr pWin; |
| 809 | |
| 810 | REQUEST(xResourceReq); |
| 811 | int rc; |
| 812 | |
| 813 | REQUEST_SIZE_MATCH(xResourceReq); |
| 814 | rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); |
| 815 | if (rc != Success) |
| 816 | return rc; |
| 817 | MapSubwindows(pWin, client); |
| 818 | /* update cache to say it is mapped */ |
| 819 | return Success; |
| 820 | } |
| 821 | |
| 822 | int |
| 823 | ProcUnmapWindow(ClientPtr client) |
| 824 | { |
| 825 | WindowPtr pWin; |
| 826 | |
| 827 | REQUEST(xResourceReq); |
| 828 | int rc; |
| 829 | |
| 830 | REQUEST_SIZE_MATCH(xResourceReq); |
| 831 | rc = dixLookupWindow(&pWin, stuff->id, client, DixHideAccess); |
| 832 | if (rc != Success) |
| 833 | return rc; |
| 834 | UnmapWindow(pWin, FALSE); |
| 835 | /* update cache to say it is mapped */ |
| 836 | return Success; |
| 837 | } |
| 838 | |
| 839 | int |
| 840 | ProcUnmapSubwindows(ClientPtr client) |
| 841 | { |
| 842 | WindowPtr pWin; |
| 843 | |
| 844 | REQUEST(xResourceReq); |
| 845 | int rc; |
| 846 | |
| 847 | REQUEST_SIZE_MATCH(xResourceReq); |
| 848 | rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); |
| 849 | if (rc != Success) |
| 850 | return rc; |
| 851 | UnmapSubwindows(pWin); |
| 852 | return Success; |
| 853 | } |
| 854 | |
| 855 | int |
| 856 | ProcConfigureWindow(ClientPtr client) |
| 857 | { |
| 858 | WindowPtr pWin; |
| 859 | |
| 860 | REQUEST(xConfigureWindowReq); |
| 861 | int len, rc; |
| 862 | |
| 863 | REQUEST_AT_LEAST_SIZE(xConfigureWindowReq); |
| 864 | rc = dixLookupWindow(&pWin, stuff->window, client, |
| 865 | DixManageAccess | DixSetAttrAccess); |
| 866 | if (rc != Success) |
| 867 | return rc; |
| 868 | len = client->req_len - bytes_to_int32(sizeof(xConfigureWindowReq)); |
| 869 | if (Ones((Mask) stuff->mask) != len) |
| 870 | return BadLength; |
| 871 | return ConfigureWindow(pWin, (Mask) stuff->mask, (XID *) &stuff[1], client); |
| 872 | } |
| 873 | |
| 874 | int |
| 875 | ProcCirculateWindow(ClientPtr client) |
| 876 | { |
| 877 | WindowPtr pWin; |
| 878 | |
| 879 | REQUEST(xCirculateWindowReq); |
| 880 | int rc; |
| 881 | |
| 882 | REQUEST_SIZE_MATCH(xCirculateWindowReq); |
| 883 | if ((stuff->direction != RaiseLowest) && (stuff->direction != LowerHighest)) { |
| 884 | client->errorValue = stuff->direction; |
| 885 | return BadValue; |
| 886 | } |
| 887 | rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); |
| 888 | if (rc != Success) |
| 889 | return rc; |
| 890 | CirculateWindow(pWin, (int) stuff->direction, client); |
| 891 | return Success; |
| 892 | } |
| 893 | |
| 894 | static int |
| 895 | GetGeometry(ClientPtr client, xGetGeometryReply * rep) |
| 896 | { |
| 897 | DrawablePtr pDraw; |
| 898 | int rc; |
| 899 | |
| 900 | REQUEST(xResourceReq); |
| 901 | REQUEST_SIZE_MATCH(xResourceReq); |
| 902 | |
| 903 | rc = dixLookupDrawable(&pDraw, stuff->id, client, M_ANY, DixGetAttrAccess); |
| 904 | if (rc != Success) |
| 905 | return rc; |
| 906 | |
| 907 | rep->type = X_Reply; |
| 908 | rep->length = 0; |
| 909 | rep->sequenceNumber = client->sequence; |
| 910 | rep->root = pDraw->pScreen->root->drawable.id; |
| 911 | rep->depth = pDraw->depth; |
| 912 | rep->width = pDraw->width; |
| 913 | rep->height = pDraw->height; |
| 914 | |
| 915 | if (WindowDrawable(pDraw->type)) { |
| 916 | WindowPtr pWin = (WindowPtr) pDraw; |
| 917 | |
| 918 | rep->x = pWin->origin.x - wBorderWidth(pWin); |
| 919 | rep->y = pWin->origin.y - wBorderWidth(pWin); |
| 920 | rep->borderWidth = pWin->borderWidth; |
| 921 | } |
| 922 | else { /* DRAWABLE_PIXMAP */ |
| 923 | |
| 924 | rep->x = rep->y = rep->borderWidth = 0; |
| 925 | } |
| 926 | |
| 927 | return Success; |
| 928 | } |
| 929 | |
| 930 | int |
| 931 | ProcGetGeometry(ClientPtr client) |
| 932 | { |
| 933 | xGetGeometryReply rep = { .type = X_Reply }; |
| 934 | int status; |
| 935 | |
| 936 | if ((status = GetGeometry(client, &rep)) != Success) |
| 937 | return status; |
| 938 | |
| 939 | WriteReplyToClient(client, sizeof(xGetGeometryReply), &rep); |
| 940 | return Success; |
| 941 | } |
| 942 | |
| 943 | int |
| 944 | ProcQueryTree(ClientPtr client) |
| 945 | { |
| 946 | xQueryTreeReply reply; |
| 947 | int rc, numChildren = 0; |
| 948 | WindowPtr pChild, pWin, pHead; |
| 949 | Window *childIDs = (Window *) NULL; |
| 950 | |
| 951 | REQUEST(xResourceReq); |
| 952 | |
| 953 | REQUEST_SIZE_MATCH(xResourceReq); |
| 954 | rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); |
| 955 | if (rc != Success) |
| 956 | return rc; |
| 957 | |
| 958 | reply = (xQueryTreeReply) { |
| 959 | .type = X_Reply, |
| 960 | .sequenceNumber = client->sequence, |
| 961 | .root = pWin->drawable.pScreen->root->drawable.id, |
| 962 | .parent = (pWin->parent) ? pWin->parent->drawable.id : (Window) None |
| 963 | }; |
| 964 | pHead = RealChildHead(pWin); |
| 965 | for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib) |
| 966 | numChildren++; |
| 967 | if (numChildren) { |
| 968 | int curChild = 0; |
| 969 | |
| 970 | childIDs = malloc(numChildren * sizeof(Window)); |
| 971 | if (!childIDs) |
| 972 | return BadAlloc; |
| 973 | for (pChild = pWin->lastChild; pChild != pHead; |
| 974 | pChild = pChild->prevSib) |
| 975 | childIDs[curChild++] = pChild->drawable.id; |
| 976 | } |
| 977 | |
| 978 | reply.nChildren = numChildren; |
| 979 | reply.length = bytes_to_int32(numChildren * sizeof(Window)); |
| 980 | |
| 981 | WriteReplyToClient(client, sizeof(xQueryTreeReply), &reply); |
| 982 | if (numChildren) { |
| 983 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 984 | WriteSwappedDataToClient(client, numChildren * sizeof(Window), |
| 985 | childIDs); |
| 986 | free(childIDs); |
| 987 | } |
| 988 | |
| 989 | return Success; |
| 990 | } |
| 991 | |
| 992 | int |
| 993 | ProcInternAtom(ClientPtr client) |
| 994 | { |
| 995 | Atom atom; |
| 996 | char *tchar; |
| 997 | |
| 998 | REQUEST(xInternAtomReq); |
| 999 | |
| 1000 | REQUEST_FIXED_SIZE(xInternAtomReq, stuff->nbytes); |
| 1001 | if ((stuff->onlyIfExists != xTrue) && (stuff->onlyIfExists != xFalse)) { |
| 1002 | client->errorValue = stuff->onlyIfExists; |
| 1003 | return BadValue; |
| 1004 | } |
| 1005 | tchar = (char *) &stuff[1]; |
| 1006 | atom = MakeAtom(tchar, stuff->nbytes, !stuff->onlyIfExists); |
| 1007 | if (atom != BAD_RESOURCE) { |
| 1008 | xInternAtomReply reply = { |
| 1009 | .type = X_Reply, |
| 1010 | .sequenceNumber = client->sequence, |
| 1011 | .length = 0, |
| 1012 | .atom = atom |
| 1013 | }; |
| 1014 | WriteReplyToClient(client, sizeof(xInternAtomReply), &reply); |
| 1015 | return Success; |
| 1016 | } |
| 1017 | else |
| 1018 | return BadAlloc; |
| 1019 | } |
| 1020 | |
| 1021 | int |
| 1022 | ProcGetAtomName(ClientPtr client) |
| 1023 | { |
| 1024 | const char *str; |
| 1025 | |
| 1026 | REQUEST(xResourceReq); |
| 1027 | |
| 1028 | REQUEST_SIZE_MATCH(xResourceReq); |
| 1029 | if ((str = NameForAtom(stuff->id))) { |
| 1030 | int len = strlen(str); |
| 1031 | xGetAtomNameReply reply = { |
| 1032 | .type = X_Reply, |
| 1033 | .sequenceNumber = client->sequence, |
| 1034 | .length = bytes_to_int32(len), |
| 1035 | .nameLength = len |
| 1036 | }; |
| 1037 | |
| 1038 | WriteReplyToClient(client, sizeof(xGetAtomNameReply), &reply); |
| 1039 | WriteToClient(client, len, str); |
| 1040 | return Success; |
| 1041 | } |
| 1042 | else { |
| 1043 | client->errorValue = stuff->id; |
| 1044 | return BadAtom; |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | int |
| 1049 | ProcGrabServer(ClientPtr client) |
| 1050 | { |
| 1051 | int rc; |
| 1052 | |
| 1053 | REQUEST_SIZE_MATCH(xReq); |
| 1054 | if (grabState != GrabNone && client != grabClient) { |
| 1055 | ResetCurrentRequest(client); |
| 1056 | client->sequence--; |
| 1057 | BITSET(grabWaiters, client->index); |
| 1058 | IgnoreClient(client); |
| 1059 | return Success; |
| 1060 | } |
| 1061 | rc = OnlyListenToOneClient(client); |
| 1062 | if (rc != Success) |
| 1063 | return rc; |
| 1064 | grabState = GrabKickout; |
| 1065 | grabClient = client; |
| 1066 | |
| 1067 | if (ServerGrabCallback) { |
| 1068 | ServerGrabInfoRec grabinfo; |
| 1069 | |
| 1070 | grabinfo.client = client; |
| 1071 | grabinfo.grabstate = SERVER_GRABBED; |
| 1072 | CallCallbacks(&ServerGrabCallback, (pointer) &grabinfo); |
| 1073 | } |
| 1074 | |
| 1075 | return Success; |
| 1076 | } |
| 1077 | |
| 1078 | static void |
| 1079 | UngrabServer(ClientPtr client) |
| 1080 | { |
| 1081 | int i; |
| 1082 | |
| 1083 | grabState = GrabNone; |
| 1084 | ListenToAllClients(); |
| 1085 | for (i = mskcnt; --i >= 0 && !grabWaiters[i];); |
| 1086 | if (i >= 0) { |
| 1087 | i <<= 5; |
| 1088 | while (!GETBIT(grabWaiters, i)) |
| 1089 | i++; |
| 1090 | BITCLEAR(grabWaiters, i); |
| 1091 | AttendClient(clients[i]); |
| 1092 | } |
| 1093 | |
| 1094 | if (ServerGrabCallback) { |
| 1095 | ServerGrabInfoRec grabinfo; |
| 1096 | |
| 1097 | grabinfo.client = client; |
| 1098 | grabinfo.grabstate = SERVER_UNGRABBED; |
| 1099 | CallCallbacks(&ServerGrabCallback, (pointer) &grabinfo); |
| 1100 | } |
| 1101 | } |
| 1102 | |
| 1103 | int |
| 1104 | ProcUngrabServer(ClientPtr client) |
| 1105 | { |
| 1106 | REQUEST_SIZE_MATCH(xReq); |
| 1107 | UngrabServer(client); |
| 1108 | return Success; |
| 1109 | } |
| 1110 | |
| 1111 | int |
| 1112 | ProcTranslateCoords(ClientPtr client) |
| 1113 | { |
| 1114 | REQUEST(xTranslateCoordsReq); |
| 1115 | |
| 1116 | WindowPtr pWin, pDst; |
| 1117 | xTranslateCoordsReply rep; |
| 1118 | int rc; |
| 1119 | |
| 1120 | REQUEST_SIZE_MATCH(xTranslateCoordsReq); |
| 1121 | rc = dixLookupWindow(&pWin, stuff->srcWid, client, DixGetAttrAccess); |
| 1122 | if (rc != Success) |
| 1123 | return rc; |
| 1124 | rc = dixLookupWindow(&pDst, stuff->dstWid, client, DixGetAttrAccess); |
| 1125 | if (rc != Success) |
| 1126 | return rc; |
| 1127 | |
| 1128 | rep = (xTranslateCoordsReply) { |
| 1129 | .type = X_Reply, |
| 1130 | .sequenceNumber = client->sequence, |
| 1131 | .length = 0 |
| 1132 | }; |
| 1133 | if (!SAME_SCREENS(pWin->drawable, pDst->drawable)) { |
| 1134 | rep.sameScreen = xFalse; |
| 1135 | rep.child = None; |
| 1136 | rep.dstX = rep.dstY = 0; |
| 1137 | } |
| 1138 | else { |
| 1139 | INT16 x, y; |
| 1140 | |
| 1141 | rep.sameScreen = xTrue; |
| 1142 | rep.child = None; |
| 1143 | /* computing absolute coordinates -- adjust to destination later */ |
| 1144 | x = pWin->drawable.x + stuff->srcX; |
| 1145 | y = pWin->drawable.y + stuff->srcY; |
| 1146 | pWin = pDst->firstChild; |
| 1147 | while (pWin) { |
| 1148 | BoxRec box; |
| 1149 | |
| 1150 | if ((pWin->mapped) && |
| 1151 | (x >= pWin->drawable.x - wBorderWidth(pWin)) && |
| 1152 | (x < pWin->drawable.x + (int) pWin->drawable.width + |
| 1153 | wBorderWidth(pWin)) && |
| 1154 | (y >= pWin->drawable.y - wBorderWidth(pWin)) && |
| 1155 | (y < pWin->drawable.y + (int) pWin->drawable.height + |
| 1156 | wBorderWidth(pWin)) |
| 1157 | /* When a window is shaped, a further check |
| 1158 | * is made to see if the point is inside |
| 1159 | * borderSize |
| 1160 | */ |
| 1161 | && (!wBoundingShape(pWin) || |
| 1162 | RegionContainsPoint(&pWin->borderSize, x, y, &box)) |
| 1163 | |
| 1164 | && (!wInputShape(pWin) || |
| 1165 | RegionContainsPoint(wInputShape(pWin), |
| 1166 | x - pWin->drawable.x, |
| 1167 | y - pWin->drawable.y, &box)) |
| 1168 | ) { |
| 1169 | rep.child = pWin->drawable.id; |
| 1170 | pWin = (WindowPtr) NULL; |
| 1171 | } |
| 1172 | else |
| 1173 | pWin = pWin->nextSib; |
| 1174 | } |
| 1175 | /* adjust to destination coordinates */ |
| 1176 | rep.dstX = x - pDst->drawable.x; |
| 1177 | rep.dstY = y - pDst->drawable.y; |
| 1178 | } |
| 1179 | WriteReplyToClient(client, sizeof(xTranslateCoordsReply), &rep); |
| 1180 | return Success; |
| 1181 | } |
| 1182 | |
| 1183 | int |
| 1184 | ProcOpenFont(ClientPtr client) |
| 1185 | { |
| 1186 | int err; |
| 1187 | |
| 1188 | REQUEST(xOpenFontReq); |
| 1189 | |
| 1190 | REQUEST_FIXED_SIZE(xOpenFontReq, stuff->nbytes); |
| 1191 | client->errorValue = stuff->fid; |
| 1192 | LEGAL_NEW_RESOURCE(stuff->fid, client); |
| 1193 | err = OpenFont(client, stuff->fid, (Mask) 0, |
| 1194 | stuff->nbytes, (char *) &stuff[1]); |
| 1195 | if (err == Success) { |
| 1196 | return Success; |
| 1197 | } |
| 1198 | else |
| 1199 | return err; |
| 1200 | } |
| 1201 | |
| 1202 | int |
| 1203 | ProcCloseFont(ClientPtr client) |
| 1204 | { |
| 1205 | FontPtr pFont; |
| 1206 | int rc; |
| 1207 | |
| 1208 | REQUEST(xResourceReq); |
| 1209 | |
| 1210 | REQUEST_SIZE_MATCH(xResourceReq); |
| 1211 | rc = dixLookupResourceByType((pointer *) &pFont, stuff->id, RT_FONT, |
| 1212 | client, DixDestroyAccess); |
| 1213 | if (rc == Success) { |
| 1214 | FreeResource(stuff->id, RT_NONE); |
| 1215 | return Success; |
| 1216 | } |
| 1217 | else { |
| 1218 | client->errorValue = stuff->id; |
| 1219 | return rc; |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | int |
| 1224 | ProcQueryFont(ClientPtr client) |
| 1225 | { |
| 1226 | xQueryFontReply *reply; |
| 1227 | FontPtr pFont; |
| 1228 | int rc; |
| 1229 | |
| 1230 | REQUEST(xResourceReq); |
| 1231 | REQUEST_SIZE_MATCH(xResourceReq); |
| 1232 | |
| 1233 | rc = dixLookupFontable(&pFont, stuff->id, client, DixGetAttrAccess); |
| 1234 | if (rc != Success) |
| 1235 | return rc; |
| 1236 | |
| 1237 | { |
| 1238 | xCharInfo *pmax = FONTINKMAX(pFont); |
| 1239 | xCharInfo *pmin = FONTINKMIN(pFont); |
| 1240 | int nprotoxcistructs; |
| 1241 | int rlength; |
| 1242 | |
| 1243 | nprotoxcistructs = (pmax->rightSideBearing == pmin->rightSideBearing && |
| 1244 | pmax->leftSideBearing == pmin->leftSideBearing && |
| 1245 | pmax->descent == pmin->descent && |
| 1246 | pmax->ascent == pmin->ascent && |
| 1247 | pmax->characterWidth == pmin->characterWidth) ? |
| 1248 | 0 : N2dChars(pFont); |
| 1249 | |
| 1250 | rlength = sizeof(xQueryFontReply) + |
| 1251 | FONTINFONPROPS(FONTCHARSET(pFont)) * sizeof(xFontProp) + |
| 1252 | nprotoxcistructs * sizeof(xCharInfo); |
| 1253 | reply = calloc(1, rlength); |
| 1254 | if (!reply) { |
| 1255 | return BadAlloc; |
| 1256 | } |
| 1257 | |
| 1258 | reply->type = X_Reply; |
| 1259 | reply->length = bytes_to_int32(rlength - sizeof(xGenericReply)); |
| 1260 | reply->sequenceNumber = client->sequence; |
| 1261 | QueryFont(pFont, reply, nprotoxcistructs); |
| 1262 | |
| 1263 | WriteReplyToClient(client, rlength, reply); |
| 1264 | free(reply); |
| 1265 | return Success; |
| 1266 | } |
| 1267 | } |
| 1268 | |
| 1269 | int |
| 1270 | ProcQueryTextExtents(ClientPtr client) |
| 1271 | { |
| 1272 | xQueryTextExtentsReply reply; |
| 1273 | FontPtr pFont; |
| 1274 | ExtentInfoRec info; |
| 1275 | unsigned long length; |
| 1276 | int rc; |
| 1277 | |
| 1278 | REQUEST(xQueryTextExtentsReq); |
| 1279 | REQUEST_AT_LEAST_SIZE(xQueryTextExtentsReq); |
| 1280 | |
| 1281 | rc = dixLookupFontable(&pFont, stuff->fid, client, DixGetAttrAccess); |
| 1282 | if (rc != Success) |
| 1283 | return rc; |
| 1284 | |
| 1285 | length = client->req_len - bytes_to_int32(sizeof(xQueryTextExtentsReq)); |
| 1286 | length = length << 1; |
| 1287 | if (stuff->oddLength) { |
| 1288 | if (length == 0) |
| 1289 | return BadLength; |
| 1290 | length--; |
| 1291 | } |
| 1292 | if (!QueryTextExtents(pFont, length, (unsigned char *) &stuff[1], &info)) |
| 1293 | return BadAlloc; |
| 1294 | reply = (xQueryTextExtentsReply) { |
| 1295 | .type = X_Reply, |
| 1296 | .drawDirection = info.drawDirection, |
| 1297 | .sequenceNumber = client->sequence, |
| 1298 | .length = 0, |
| 1299 | .fontAscent = info.fontAscent, |
| 1300 | .fontDescent = info.fontDescent, |
| 1301 | .overallAscent = info.overallAscent, |
| 1302 | .overallDescent = info.overallDescent, |
| 1303 | .overallWidth = info.overallWidth, |
| 1304 | .overallLeft = info.overallLeft, |
| 1305 | .overallRight = info.overallRight |
| 1306 | }; |
| 1307 | WriteReplyToClient(client, sizeof(xQueryTextExtentsReply), &reply); |
| 1308 | return Success; |
| 1309 | } |
| 1310 | |
| 1311 | int |
| 1312 | ProcListFonts(ClientPtr client) |
| 1313 | { |
| 1314 | REQUEST(xListFontsReq); |
| 1315 | |
| 1316 | REQUEST_FIXED_SIZE(xListFontsReq, stuff->nbytes); |
| 1317 | |
| 1318 | return ListFonts(client, (unsigned char *) &stuff[1], stuff->nbytes, |
| 1319 | stuff->maxNames); |
| 1320 | } |
| 1321 | |
| 1322 | int |
| 1323 | ProcListFontsWithInfo(ClientPtr client) |
| 1324 | { |
| 1325 | REQUEST(xListFontsWithInfoReq); |
| 1326 | |
| 1327 | REQUEST_FIXED_SIZE(xListFontsWithInfoReq, stuff->nbytes); |
| 1328 | |
| 1329 | return StartListFontsWithInfo(client, stuff->nbytes, |
| 1330 | (unsigned char *) &stuff[1], stuff->maxNames); |
| 1331 | } |
| 1332 | |
| 1333 | /** |
| 1334 | * |
| 1335 | * \param value must conform to DeleteType |
| 1336 | */ |
| 1337 | int |
| 1338 | dixDestroyPixmap(pointer value, XID pid) |
| 1339 | { |
| 1340 | PixmapPtr pPixmap = (PixmapPtr) value; |
| 1341 | |
| 1342 | return (*pPixmap->drawable.pScreen->DestroyPixmap) (pPixmap); |
| 1343 | } |
| 1344 | |
| 1345 | int |
| 1346 | ProcCreatePixmap(ClientPtr client) |
| 1347 | { |
| 1348 | PixmapPtr pMap; |
| 1349 | DrawablePtr pDraw; |
| 1350 | |
| 1351 | REQUEST(xCreatePixmapReq); |
| 1352 | DepthPtr pDepth; |
| 1353 | int i, rc; |
| 1354 | |
| 1355 | REQUEST_SIZE_MATCH(xCreatePixmapReq); |
| 1356 | client->errorValue = stuff->pid; |
| 1357 | LEGAL_NEW_RESOURCE(stuff->pid, client); |
| 1358 | |
| 1359 | rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, |
| 1360 | DixGetAttrAccess); |
| 1361 | if (rc != Success) |
| 1362 | return rc; |
| 1363 | |
| 1364 | if (!stuff->width || !stuff->height) { |
| 1365 | client->errorValue = 0; |
| 1366 | return BadValue; |
| 1367 | } |
| 1368 | if (stuff->width > 32767 || stuff->height > 32767) { |
| 1369 | /* It is allowed to try and allocate a pixmap which is larger than |
| 1370 | * 32767 in either dimension. However, all of the framebuffer code |
| 1371 | * is buggy and does not reliably draw to such big pixmaps, basically |
| 1372 | * because the Region data structure operates with signed shorts |
| 1373 | * for the rectangles in it. |
| 1374 | * |
| 1375 | * Furthermore, several places in the X server computes the |
| 1376 | * size in bytes of the pixmap and tries to store it in an |
| 1377 | * integer. This integer can overflow and cause the allocated size |
| 1378 | * to be much smaller. |
| 1379 | * |
| 1380 | * So, such big pixmaps are rejected here with a BadAlloc |
| 1381 | */ |
| 1382 | return BadAlloc; |
| 1383 | } |
| 1384 | if (stuff->depth != 1) { |
| 1385 | pDepth = pDraw->pScreen->allowedDepths; |
| 1386 | for (i = 0; i < pDraw->pScreen->numDepths; i++, pDepth++) |
| 1387 | if (pDepth->depth == stuff->depth) |
| 1388 | goto CreatePmap; |
| 1389 | client->errorValue = stuff->depth; |
| 1390 | return BadValue; |
| 1391 | } |
| 1392 | CreatePmap: |
| 1393 | pMap = (PixmapPtr) (*pDraw->pScreen->CreatePixmap) |
| 1394 | (pDraw->pScreen, stuff->width, stuff->height, stuff->depth, 0); |
| 1395 | if (pMap) { |
| 1396 | pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER; |
| 1397 | pMap->drawable.id = stuff->pid; |
| 1398 | /* security creation/labeling check */ |
| 1399 | rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP, |
| 1400 | pMap, RT_NONE, NULL, DixCreateAccess); |
| 1401 | if (rc != Success) { |
| 1402 | (*pDraw->pScreen->DestroyPixmap) (pMap); |
| 1403 | return rc; |
| 1404 | } |
| 1405 | if (AddResource(stuff->pid, RT_PIXMAP, (pointer) pMap)) |
| 1406 | return Success; |
| 1407 | } |
| 1408 | return BadAlloc; |
| 1409 | } |
| 1410 | |
| 1411 | int |
| 1412 | ProcFreePixmap(ClientPtr client) |
| 1413 | { |
| 1414 | PixmapPtr pMap; |
| 1415 | int rc; |
| 1416 | |
| 1417 | REQUEST(xResourceReq); |
| 1418 | REQUEST_SIZE_MATCH(xResourceReq); |
| 1419 | |
| 1420 | rc = dixLookupResourceByType((pointer *) &pMap, stuff->id, RT_PIXMAP, |
| 1421 | client, DixDestroyAccess); |
| 1422 | if (rc == Success) { |
| 1423 | FreeResource(stuff->id, RT_NONE); |
| 1424 | return Success; |
| 1425 | } |
| 1426 | else { |
| 1427 | client->errorValue = stuff->id; |
| 1428 | return rc; |
| 1429 | } |
| 1430 | } |
| 1431 | |
| 1432 | int |
| 1433 | ProcCreateGC(ClientPtr client) |
| 1434 | { |
| 1435 | int error, rc; |
| 1436 | GC *pGC; |
| 1437 | DrawablePtr pDraw; |
| 1438 | unsigned len; |
| 1439 | |
| 1440 | REQUEST(xCreateGCReq); |
| 1441 | |
| 1442 | REQUEST_AT_LEAST_SIZE(xCreateGCReq); |
| 1443 | client->errorValue = stuff->gc; |
| 1444 | LEGAL_NEW_RESOURCE(stuff->gc, client); |
| 1445 | rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, |
| 1446 | DixGetAttrAccess); |
| 1447 | if (rc != Success) |
| 1448 | return rc; |
| 1449 | |
| 1450 | len = client->req_len - bytes_to_int32(sizeof(xCreateGCReq)); |
| 1451 | if (len != Ones(stuff->mask)) |
| 1452 | return BadLength; |
| 1453 | pGC = (GC *) CreateGC(pDraw, stuff->mask, (XID *) &stuff[1], &error, |
| 1454 | stuff->gc, client); |
| 1455 | if (error != Success) |
| 1456 | return error; |
| 1457 | if (!AddResource(stuff->gc, RT_GC, (pointer) pGC)) |
| 1458 | return BadAlloc; |
| 1459 | return Success; |
| 1460 | } |
| 1461 | |
| 1462 | int |
| 1463 | ProcChangeGC(ClientPtr client) |
| 1464 | { |
| 1465 | GC *pGC; |
| 1466 | int result; |
| 1467 | unsigned len; |
| 1468 | |
| 1469 | REQUEST(xChangeGCReq); |
| 1470 | REQUEST_AT_LEAST_SIZE(xChangeGCReq); |
| 1471 | |
| 1472 | result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess); |
| 1473 | if (result != Success) |
| 1474 | return result; |
| 1475 | |
| 1476 | len = client->req_len - bytes_to_int32(sizeof(xChangeGCReq)); |
| 1477 | if (len != Ones(stuff->mask)) |
| 1478 | return BadLength; |
| 1479 | |
| 1480 | return ChangeGCXIDs(client, pGC, stuff->mask, (CARD32 *) &stuff[1]); |
| 1481 | } |
| 1482 | |
| 1483 | int |
| 1484 | ProcCopyGC(ClientPtr client) |
| 1485 | { |
| 1486 | GC *dstGC; |
| 1487 | GC *pGC; |
| 1488 | int result; |
| 1489 | |
| 1490 | REQUEST(xCopyGCReq); |
| 1491 | REQUEST_SIZE_MATCH(xCopyGCReq); |
| 1492 | |
| 1493 | result = dixLookupGC(&pGC, stuff->srcGC, client, DixGetAttrAccess); |
| 1494 | if (result != Success) |
| 1495 | return result; |
| 1496 | result = dixLookupGC(&dstGC, stuff->dstGC, client, DixSetAttrAccess); |
| 1497 | if (result != Success) |
| 1498 | return result; |
| 1499 | if ((dstGC->pScreen != pGC->pScreen) || (dstGC->depth != pGC->depth)) |
| 1500 | return BadMatch; |
| 1501 | if (stuff->mask & ~GCAllBits) { |
| 1502 | client->errorValue = stuff->mask; |
| 1503 | return BadValue; |
| 1504 | } |
| 1505 | return CopyGC(pGC, dstGC, stuff->mask); |
| 1506 | } |
| 1507 | |
| 1508 | int |
| 1509 | ProcSetDashes(ClientPtr client) |
| 1510 | { |
| 1511 | GC *pGC; |
| 1512 | int result; |
| 1513 | |
| 1514 | REQUEST(xSetDashesReq); |
| 1515 | |
| 1516 | REQUEST_FIXED_SIZE(xSetDashesReq, stuff->nDashes); |
| 1517 | if (stuff->nDashes == 0) { |
| 1518 | client->errorValue = 0; |
| 1519 | return BadValue; |
| 1520 | } |
| 1521 | |
| 1522 | result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess); |
| 1523 | if (result != Success) |
| 1524 | return result; |
| 1525 | |
| 1526 | /* If there's an error, either there's no sensible errorValue, |
| 1527 | * or there was a dash segment of 0. */ |
| 1528 | client->errorValue = 0; |
| 1529 | return SetDashes(pGC, stuff->dashOffset, stuff->nDashes, |
| 1530 | (unsigned char *) &stuff[1]); |
| 1531 | } |
| 1532 | |
| 1533 | int |
| 1534 | ProcSetClipRectangles(ClientPtr client) |
| 1535 | { |
| 1536 | int nr, result; |
| 1537 | GC *pGC; |
| 1538 | |
| 1539 | REQUEST(xSetClipRectanglesReq); |
| 1540 | |
| 1541 | REQUEST_AT_LEAST_SIZE(xSetClipRectanglesReq); |
| 1542 | if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) && |
| 1543 | (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded)) { |
| 1544 | client->errorValue = stuff->ordering; |
| 1545 | return BadValue; |
| 1546 | } |
| 1547 | result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess); |
| 1548 | if (result != Success) |
| 1549 | return result; |
| 1550 | |
| 1551 | nr = (client->req_len << 2) - sizeof(xSetClipRectanglesReq); |
| 1552 | if (nr & 4) |
| 1553 | return BadLength; |
| 1554 | nr >>= 3; |
| 1555 | return SetClipRects(pGC, stuff->xOrigin, stuff->yOrigin, |
| 1556 | nr, (xRectangle *) &stuff[1], (int) stuff->ordering); |
| 1557 | } |
| 1558 | |
| 1559 | int |
| 1560 | ProcFreeGC(ClientPtr client) |
| 1561 | { |
| 1562 | GC *pGC; |
| 1563 | int rc; |
| 1564 | |
| 1565 | REQUEST(xResourceReq); |
| 1566 | REQUEST_SIZE_MATCH(xResourceReq); |
| 1567 | |
| 1568 | rc = dixLookupGC(&pGC, stuff->id, client, DixDestroyAccess); |
| 1569 | if (rc != Success) |
| 1570 | return rc; |
| 1571 | |
| 1572 | FreeResource(stuff->id, RT_NONE); |
| 1573 | return Success; |
| 1574 | } |
| 1575 | |
| 1576 | int |
| 1577 | ProcClearToBackground(ClientPtr client) |
| 1578 | { |
| 1579 | REQUEST(xClearAreaReq); |
| 1580 | WindowPtr pWin; |
| 1581 | int rc; |
| 1582 | |
| 1583 | REQUEST_SIZE_MATCH(xClearAreaReq); |
| 1584 | rc = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess); |
| 1585 | if (rc != Success) |
| 1586 | return rc; |
| 1587 | if (pWin->drawable.class == InputOnly) { |
| 1588 | client->errorValue = stuff->window; |
| 1589 | return BadMatch; |
| 1590 | } |
| 1591 | if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse)) { |
| 1592 | client->errorValue = stuff->exposures; |
| 1593 | return BadValue; |
| 1594 | } |
| 1595 | (*pWin->drawable.pScreen->ClearToBackground) (pWin, stuff->x, stuff->y, |
| 1596 | stuff->width, stuff->height, |
| 1597 | (Bool) stuff->exposures); |
| 1598 | return Success; |
| 1599 | } |
| 1600 | |
| 1601 | int |
| 1602 | ProcCopyArea(ClientPtr client) |
| 1603 | { |
| 1604 | DrawablePtr pDst; |
| 1605 | DrawablePtr pSrc; |
| 1606 | GC *pGC; |
| 1607 | |
| 1608 | REQUEST(xCopyAreaReq); |
| 1609 | RegionPtr pRgn; |
| 1610 | int rc; |
| 1611 | |
| 1612 | REQUEST_SIZE_MATCH(xCopyAreaReq); |
| 1613 | |
| 1614 | VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pDst, DixWriteAccess); |
| 1615 | if (stuff->dstDrawable != stuff->srcDrawable) { |
| 1616 | rc = dixLookupDrawable(&pSrc, stuff->srcDrawable, client, 0, |
| 1617 | DixReadAccess); |
| 1618 | if (rc != Success) |
| 1619 | return rc; |
| 1620 | if ((pDst->pScreen != pSrc->pScreen) || (pDst->depth != pSrc->depth)) { |
| 1621 | client->errorValue = stuff->dstDrawable; |
| 1622 | return BadMatch; |
| 1623 | } |
| 1624 | } |
| 1625 | else |
| 1626 | pSrc = pDst; |
| 1627 | |
| 1628 | pRgn = (*pGC->ops->CopyArea) (pSrc, pDst, pGC, stuff->srcX, stuff->srcY, |
| 1629 | stuff->width, stuff->height, |
| 1630 | stuff->dstX, stuff->dstY); |
| 1631 | if (pGC->graphicsExposures) { |
| 1632 | (*pDst->pScreen->SendGraphicsExpose) |
| 1633 | (client, pRgn, stuff->dstDrawable, X_CopyArea, 0); |
| 1634 | if (pRgn) |
| 1635 | RegionDestroy(pRgn); |
| 1636 | } |
| 1637 | |
| 1638 | return Success; |
| 1639 | } |
| 1640 | |
| 1641 | int |
| 1642 | ProcCopyPlane(ClientPtr client) |
| 1643 | { |
| 1644 | DrawablePtr psrcDraw, pdstDraw; |
| 1645 | GC *pGC; |
| 1646 | |
| 1647 | REQUEST(xCopyPlaneReq); |
| 1648 | RegionPtr pRgn; |
| 1649 | int rc; |
| 1650 | |
| 1651 | REQUEST_SIZE_MATCH(xCopyPlaneReq); |
| 1652 | |
| 1653 | VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pdstDraw, DixWriteAccess); |
| 1654 | if (stuff->dstDrawable != stuff->srcDrawable) { |
| 1655 | rc = dixLookupDrawable(&psrcDraw, stuff->srcDrawable, client, 0, |
| 1656 | DixReadAccess); |
| 1657 | if (rc != Success) |
| 1658 | return rc; |
| 1659 | |
| 1660 | if (pdstDraw->pScreen != psrcDraw->pScreen) { |
| 1661 | client->errorValue = stuff->dstDrawable; |
| 1662 | return BadMatch; |
| 1663 | } |
| 1664 | } |
| 1665 | else |
| 1666 | psrcDraw = pdstDraw; |
| 1667 | |
| 1668 | /* Check to see if stuff->bitPlane has exactly ONE good bit set */ |
| 1669 | if (stuff->bitPlane == 0 || (stuff->bitPlane & (stuff->bitPlane - 1)) || |
| 1670 | (stuff->bitPlane > (1L << (psrcDraw->depth - 1)))) { |
| 1671 | client->errorValue = stuff->bitPlane; |
| 1672 | return BadValue; |
| 1673 | } |
| 1674 | |
| 1675 | pRgn = |
| 1676 | (*pGC->ops->CopyPlane) (psrcDraw, pdstDraw, pGC, stuff->srcX, |
| 1677 | stuff->srcY, stuff->width, stuff->height, |
| 1678 | stuff->dstX, stuff->dstY, stuff->bitPlane); |
| 1679 | if (pGC->graphicsExposures) { |
| 1680 | (*pdstDraw->pScreen->SendGraphicsExpose) |
| 1681 | (client, pRgn, stuff->dstDrawable, X_CopyPlane, 0); |
| 1682 | if (pRgn) |
| 1683 | RegionDestroy(pRgn); |
| 1684 | } |
| 1685 | return Success; |
| 1686 | } |
| 1687 | |
| 1688 | int |
| 1689 | ProcPolyPoint(ClientPtr client) |
| 1690 | { |
| 1691 | int npoint; |
| 1692 | GC *pGC; |
| 1693 | DrawablePtr pDraw; |
| 1694 | |
| 1695 | REQUEST(xPolyPointReq); |
| 1696 | |
| 1697 | REQUEST_AT_LEAST_SIZE(xPolyPointReq); |
| 1698 | if ((stuff->coordMode != CoordModeOrigin) && |
| 1699 | (stuff->coordMode != CoordModePrevious)) { |
| 1700 | client->errorValue = stuff->coordMode; |
| 1701 | return BadValue; |
| 1702 | } |
| 1703 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1704 | npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyPointReq)); |
| 1705 | if (npoint) |
| 1706 | (*pGC->ops->PolyPoint) (pDraw, pGC, stuff->coordMode, npoint, |
| 1707 | (xPoint *) &stuff[1]); |
| 1708 | return Success; |
| 1709 | } |
| 1710 | |
| 1711 | int |
| 1712 | ProcPolyLine(ClientPtr client) |
| 1713 | { |
| 1714 | int npoint; |
| 1715 | GC *pGC; |
| 1716 | DrawablePtr pDraw; |
| 1717 | |
| 1718 | REQUEST(xPolyLineReq); |
| 1719 | |
| 1720 | REQUEST_AT_LEAST_SIZE(xPolyLineReq); |
| 1721 | if ((stuff->coordMode != CoordModeOrigin) && |
| 1722 | (stuff->coordMode != CoordModePrevious)) { |
| 1723 | client->errorValue = stuff->coordMode; |
| 1724 | return BadValue; |
| 1725 | } |
| 1726 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1727 | npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyLineReq)); |
| 1728 | if (npoint > 1) |
| 1729 | (*pGC->ops->Polylines) (pDraw, pGC, stuff->coordMode, npoint, |
| 1730 | (DDXPointPtr) &stuff[1]); |
| 1731 | return Success; |
| 1732 | } |
| 1733 | |
| 1734 | int |
| 1735 | ProcPolySegment(ClientPtr client) |
| 1736 | { |
| 1737 | int nsegs; |
| 1738 | GC *pGC; |
| 1739 | DrawablePtr pDraw; |
| 1740 | |
| 1741 | REQUEST(xPolySegmentReq); |
| 1742 | |
| 1743 | REQUEST_AT_LEAST_SIZE(xPolySegmentReq); |
| 1744 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1745 | nsegs = (client->req_len << 2) - sizeof(xPolySegmentReq); |
| 1746 | if (nsegs & 4) |
| 1747 | return BadLength; |
| 1748 | nsegs >>= 3; |
| 1749 | if (nsegs) |
| 1750 | (*pGC->ops->PolySegment) (pDraw, pGC, nsegs, (xSegment *) &stuff[1]); |
| 1751 | return Success; |
| 1752 | } |
| 1753 | |
| 1754 | int |
| 1755 | ProcPolyRectangle(ClientPtr client) |
| 1756 | { |
| 1757 | int nrects; |
| 1758 | GC *pGC; |
| 1759 | DrawablePtr pDraw; |
| 1760 | |
| 1761 | REQUEST(xPolyRectangleReq); |
| 1762 | |
| 1763 | REQUEST_AT_LEAST_SIZE(xPolyRectangleReq); |
| 1764 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1765 | nrects = (client->req_len << 2) - sizeof(xPolyRectangleReq); |
| 1766 | if (nrects & 4) |
| 1767 | return BadLength; |
| 1768 | nrects >>= 3; |
| 1769 | if (nrects) |
| 1770 | (*pGC->ops->PolyRectangle) (pDraw, pGC, |
| 1771 | nrects, (xRectangle *) &stuff[1]); |
| 1772 | return Success; |
| 1773 | } |
| 1774 | |
| 1775 | int |
| 1776 | ProcPolyArc(ClientPtr client) |
| 1777 | { |
| 1778 | int narcs; |
| 1779 | GC *pGC; |
| 1780 | DrawablePtr pDraw; |
| 1781 | |
| 1782 | REQUEST(xPolyArcReq); |
| 1783 | |
| 1784 | REQUEST_AT_LEAST_SIZE(xPolyArcReq); |
| 1785 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1786 | narcs = (client->req_len << 2) - sizeof(xPolyArcReq); |
| 1787 | if (narcs % sizeof(xArc)) |
| 1788 | return BadLength; |
| 1789 | narcs /= sizeof(xArc); |
| 1790 | if (narcs) |
| 1791 | (*pGC->ops->PolyArc) (pDraw, pGC, narcs, (xArc *) &stuff[1]); |
| 1792 | return Success; |
| 1793 | } |
| 1794 | |
| 1795 | int |
| 1796 | ProcFillPoly(ClientPtr client) |
| 1797 | { |
| 1798 | int things; |
| 1799 | GC *pGC; |
| 1800 | DrawablePtr pDraw; |
| 1801 | |
| 1802 | REQUEST(xFillPolyReq); |
| 1803 | |
| 1804 | REQUEST_AT_LEAST_SIZE(xFillPolyReq); |
| 1805 | if ((stuff->shape != Complex) && (stuff->shape != Nonconvex) && |
| 1806 | (stuff->shape != Convex)) { |
| 1807 | client->errorValue = stuff->shape; |
| 1808 | return BadValue; |
| 1809 | } |
| 1810 | if ((stuff->coordMode != CoordModeOrigin) && |
| 1811 | (stuff->coordMode != CoordModePrevious)) { |
| 1812 | client->errorValue = stuff->coordMode; |
| 1813 | return BadValue; |
| 1814 | } |
| 1815 | |
| 1816 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1817 | things = bytes_to_int32((client->req_len << 2) - sizeof(xFillPolyReq)); |
| 1818 | if (things) |
| 1819 | (*pGC->ops->FillPolygon) (pDraw, pGC, stuff->shape, |
| 1820 | stuff->coordMode, things, |
| 1821 | (DDXPointPtr) &stuff[1]); |
| 1822 | return Success; |
| 1823 | } |
| 1824 | |
| 1825 | int |
| 1826 | ProcPolyFillRectangle(ClientPtr client) |
| 1827 | { |
| 1828 | int things; |
| 1829 | GC *pGC; |
| 1830 | DrawablePtr pDraw; |
| 1831 | |
| 1832 | REQUEST(xPolyFillRectangleReq); |
| 1833 | |
| 1834 | REQUEST_AT_LEAST_SIZE(xPolyFillRectangleReq); |
| 1835 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1836 | things = (client->req_len << 2) - sizeof(xPolyFillRectangleReq); |
| 1837 | if (things & 4) |
| 1838 | return BadLength; |
| 1839 | things >>= 3; |
| 1840 | |
| 1841 | if (things) |
| 1842 | (*pGC->ops->PolyFillRect) (pDraw, pGC, things, |
| 1843 | (xRectangle *) &stuff[1]); |
| 1844 | return Success; |
| 1845 | } |
| 1846 | |
| 1847 | int |
| 1848 | ProcPolyFillArc(ClientPtr client) |
| 1849 | { |
| 1850 | int narcs; |
| 1851 | GC *pGC; |
| 1852 | DrawablePtr pDraw; |
| 1853 | |
| 1854 | REQUEST(xPolyFillArcReq); |
| 1855 | |
| 1856 | REQUEST_AT_LEAST_SIZE(xPolyFillArcReq); |
| 1857 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1858 | narcs = (client->req_len << 2) - sizeof(xPolyFillArcReq); |
| 1859 | if (narcs % sizeof(xArc)) |
| 1860 | return BadLength; |
| 1861 | narcs /= sizeof(xArc); |
| 1862 | if (narcs) |
| 1863 | (*pGC->ops->PolyFillArc) (pDraw, pGC, narcs, (xArc *) &stuff[1]); |
| 1864 | return Success; |
| 1865 | } |
| 1866 | |
| 1867 | #ifdef MATCH_CLIENT_ENDIAN |
| 1868 | |
| 1869 | int |
| 1870 | ServerOrder(void) |
| 1871 | { |
| 1872 | int whichbyte = 1; |
| 1873 | |
| 1874 | if (*((char *) &whichbyte)) |
| 1875 | return LSBFirst; |
| 1876 | return MSBFirst; |
| 1877 | } |
| 1878 | |
| 1879 | #define ClientOrder(client) ((client)->swapped ? !ServerOrder() : ServerOrder()) |
| 1880 | |
| 1881 | void |
| 1882 | ReformatImage(char *base, int nbytes, int bpp, int order) |
| 1883 | { |
| 1884 | switch (bpp) { |
| 1885 | case 1: /* yuck */ |
| 1886 | if (BITMAP_BIT_ORDER != order) |
| 1887 | BitOrderInvert((unsigned char *) base, nbytes); |
| 1888 | #if IMAGE_BYTE_ORDER != BITMAP_BIT_ORDER && BITMAP_SCANLINE_UNIT != 8 |
| 1889 | ReformatImage(base, nbytes, BITMAP_SCANLINE_UNIT, order); |
| 1890 | #endif |
| 1891 | break; |
| 1892 | case 4: |
| 1893 | break; /* yuck */ |
| 1894 | case 8: |
| 1895 | break; |
| 1896 | case 16: |
| 1897 | if (IMAGE_BYTE_ORDER != order) |
| 1898 | TwoByteSwap((unsigned char *) base, nbytes); |
| 1899 | break; |
| 1900 | case 32: |
| 1901 | if (IMAGE_BYTE_ORDER != order) |
| 1902 | FourByteSwap((unsigned char *) base, nbytes); |
| 1903 | break; |
| 1904 | } |
| 1905 | } |
| 1906 | #else |
| 1907 | #define ReformatImage(b,n,bpp,o) |
| 1908 | #endif |
| 1909 | |
| 1910 | /* 64-bit server notes: the protocol restricts padding of images to |
| 1911 | * 8-, 16-, or 32-bits. We would like to have 64-bits for the server |
| 1912 | * to use internally. Removes need for internal alignment checking. |
| 1913 | * All of the PutImage functions could be changed individually, but |
| 1914 | * as currently written, they call other routines which require things |
| 1915 | * to be 64-bit padded on scanlines, so we changed things here. |
| 1916 | * If an image would be padded differently for 64- versus 32-, then |
| 1917 | * copy each scanline to a 64-bit padded scanline. |
| 1918 | * Also, we need to make sure that the image is aligned on a 64-bit |
| 1919 | * boundary, even if the scanlines are padded to our satisfaction. |
| 1920 | */ |
| 1921 | int |
| 1922 | ProcPutImage(ClientPtr client) |
| 1923 | { |
| 1924 | GC *pGC; |
| 1925 | DrawablePtr pDraw; |
| 1926 | long length; /* length of scanline server padded */ |
| 1927 | long lengthProto; /* length of scanline protocol padded */ |
| 1928 | char *tmpImage; |
| 1929 | |
| 1930 | REQUEST(xPutImageReq); |
| 1931 | |
| 1932 | REQUEST_AT_LEAST_SIZE(xPutImageReq); |
| 1933 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 1934 | if (stuff->format == XYBitmap) { |
| 1935 | if ((stuff->depth != 1) || |
| 1936 | (stuff->leftPad >= (unsigned int) screenInfo.bitmapScanlinePad)) |
| 1937 | return BadMatch; |
| 1938 | length = BitmapBytePad(stuff->width + stuff->leftPad); |
| 1939 | } |
| 1940 | else if (stuff->format == XYPixmap) { |
| 1941 | if ((pDraw->depth != stuff->depth) || |
| 1942 | (stuff->leftPad >= (unsigned int) screenInfo.bitmapScanlinePad)) |
| 1943 | return BadMatch; |
| 1944 | length = BitmapBytePad(stuff->width + stuff->leftPad); |
| 1945 | length *= stuff->depth; |
| 1946 | } |
| 1947 | else if (stuff->format == ZPixmap) { |
| 1948 | if ((pDraw->depth != stuff->depth) || (stuff->leftPad != 0)) |
| 1949 | return BadMatch; |
| 1950 | length = PixmapBytePad(stuff->width, stuff->depth); |
| 1951 | } |
| 1952 | else { |
| 1953 | client->errorValue = stuff->format; |
| 1954 | return BadValue; |
| 1955 | } |
| 1956 | |
| 1957 | tmpImage = (char *) &stuff[1]; |
| 1958 | lengthProto = length; |
| 1959 | |
| 1960 | if ((bytes_to_int32(lengthProto * stuff->height) + |
| 1961 | bytes_to_int32(sizeof(xPutImageReq))) != client->req_len) |
| 1962 | return BadLength; |
| 1963 | |
| 1964 | ReformatImage(tmpImage, lengthProto * stuff->height, |
| 1965 | stuff->format == ZPixmap ? BitsPerPixel(stuff->depth) : 1, |
| 1966 | ClientOrder(client)); |
| 1967 | |
| 1968 | (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth, stuff->dstX, stuff->dstY, |
| 1969 | stuff->width, stuff->height, |
| 1970 | stuff->leftPad, stuff->format, tmpImage); |
| 1971 | |
| 1972 | return Success; |
| 1973 | } |
| 1974 | |
| 1975 | static int |
| 1976 | DoGetImage(ClientPtr client, int format, Drawable drawable, |
| 1977 | int x, int y, int width, int height, |
| 1978 | Mask planemask) |
| 1979 | { |
| 1980 | DrawablePtr pDraw, pBoundingDraw; |
| 1981 | int nlines, linesPerBuf, rc; |
| 1982 | int linesDone; |
| 1983 | |
| 1984 | /* coordinates relative to the bounding drawable */ |
| 1985 | int relx, rely; |
| 1986 | long widthBytesLine, length; |
| 1987 | Mask plane = 0; |
| 1988 | char *pBuf; |
| 1989 | xGetImageReply xgi; |
| 1990 | RegionPtr pVisibleRegion = NULL; |
| 1991 | |
| 1992 | if ((format != XYPixmap) && (format != ZPixmap)) { |
| 1993 | client->errorValue = format; |
| 1994 | return BadValue; |
| 1995 | } |
| 1996 | rc = dixLookupDrawable(&pDraw, drawable, client, 0, DixReadAccess); |
| 1997 | if (rc != Success) |
| 1998 | return rc; |
| 1999 | |
| 2000 | memset(&xgi, 0, sizeof(xGetImageReply)); |
| 2001 | |
| 2002 | relx = x; |
| 2003 | rely = y; |
| 2004 | |
| 2005 | if (pDraw->type == DRAWABLE_WINDOW) { |
| 2006 | WindowPtr pWin = (WindowPtr) pDraw; |
| 2007 | |
| 2008 | /* "If the drawable is a window, the window must be viewable ... or a |
| 2009 | * BadMatch error results" */ |
| 2010 | if (!pWin->viewable) |
| 2011 | return BadMatch; |
| 2012 | |
| 2013 | /* If the drawable is a window, the rectangle must be contained within |
| 2014 | * its bounds (including the border). */ |
| 2015 | if (x < -wBorderWidth(pWin) || |
| 2016 | x + width > wBorderWidth(pWin) + (int) pDraw->width || |
| 2017 | y < -wBorderWidth(pWin) || |
| 2018 | y + height > wBorderWidth(pWin) + (int) pDraw->height) |
| 2019 | return BadMatch; |
| 2020 | |
| 2021 | relx += pDraw->x; |
| 2022 | rely += pDraw->y; |
| 2023 | |
| 2024 | if (pDraw->pScreen->GetWindowPixmap) { |
| 2025 | PixmapPtr pPix = (*pDraw->pScreen->GetWindowPixmap) (pWin); |
| 2026 | |
| 2027 | pBoundingDraw = &pPix->drawable; |
| 2028 | #ifdef COMPOSITE |
| 2029 | relx -= pPix->screen_x; |
| 2030 | rely -= pPix->screen_y; |
| 2031 | #endif |
| 2032 | } |
| 2033 | else { |
| 2034 | pBoundingDraw = (DrawablePtr) pDraw->pScreen->root; |
| 2035 | } |
| 2036 | |
| 2037 | xgi.visual = wVisual(pWin); |
| 2038 | } |
| 2039 | else { |
| 2040 | pBoundingDraw = pDraw; |
| 2041 | xgi.visual = None; |
| 2042 | } |
| 2043 | |
| 2044 | /* "If the drawable is a pixmap, the given rectangle must be wholly |
| 2045 | * contained within the pixmap, or a BadMatch error results. If the |
| 2046 | * drawable is a window [...] it must be the case that if there were no |
| 2047 | * inferiors or overlapping windows, the specified rectangle of the window |
| 2048 | * would be fully visible on the screen and wholly contained within the |
| 2049 | * outside edges of the window, or a BadMatch error results." |
| 2050 | * |
| 2051 | * We relax the window case slightly to mean that the rectangle must exist |
| 2052 | * within the bounds of the window's backing pixmap. In particular, this |
| 2053 | * means that a GetImage request may succeed or fail with BadMatch depending |
| 2054 | * on whether any of its ancestor windows are redirected. */ |
| 2055 | if (relx < 0 || relx + width > (int) pBoundingDraw->width || |
| 2056 | rely < 0 || rely + height > (int) pBoundingDraw->height) |
| 2057 | return BadMatch; |
| 2058 | |
| 2059 | xgi.type = X_Reply; |
| 2060 | xgi.sequenceNumber = client->sequence; |
| 2061 | xgi.depth = pDraw->depth; |
| 2062 | if (format == ZPixmap) { |
| 2063 | widthBytesLine = PixmapBytePad(width, pDraw->depth); |
| 2064 | length = widthBytesLine * height; |
| 2065 | |
| 2066 | } |
| 2067 | else { |
| 2068 | widthBytesLine = BitmapBytePad(width); |
| 2069 | plane = ((Mask) 1) << (pDraw->depth - 1); |
| 2070 | /* only planes asked for */ |
| 2071 | length = widthBytesLine * height * |
| 2072 | Ones(planemask & (plane | (plane - 1))); |
| 2073 | |
| 2074 | } |
| 2075 | |
| 2076 | xgi.length = length; |
| 2077 | |
| 2078 | xgi.length = bytes_to_int32(xgi.length); |
| 2079 | if (widthBytesLine == 0 || height == 0) |
| 2080 | linesPerBuf = 0; |
| 2081 | else if (widthBytesLine >= IMAGE_BUFSIZE) |
| 2082 | linesPerBuf = 1; |
| 2083 | else { |
| 2084 | linesPerBuf = IMAGE_BUFSIZE / widthBytesLine; |
| 2085 | if (linesPerBuf > height) |
| 2086 | linesPerBuf = height; |
| 2087 | } |
| 2088 | length = linesPerBuf * widthBytesLine; |
| 2089 | if (linesPerBuf < height) { |
| 2090 | /* we have to make sure intermediate buffers don't need padding */ |
| 2091 | while ((linesPerBuf > 1) && |
| 2092 | (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD) - 1))) { |
| 2093 | linesPerBuf--; |
| 2094 | length -= widthBytesLine; |
| 2095 | } |
| 2096 | while (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD) - 1)) { |
| 2097 | linesPerBuf++; |
| 2098 | length += widthBytesLine; |
| 2099 | } |
| 2100 | } |
| 2101 | if (!(pBuf = calloc(1, length))) |
| 2102 | return BadAlloc; |
| 2103 | WriteReplyToClient(client, sizeof(xGetImageReply), &xgi); |
| 2104 | |
| 2105 | if (pDraw->type == DRAWABLE_WINDOW) { |
| 2106 | pVisibleRegion = NotClippedByChildren((WindowPtr) pDraw); |
| 2107 | if (pVisibleRegion) { |
| 2108 | RegionTranslate(pVisibleRegion, -pDraw->x, -pDraw->y); |
| 2109 | } |
| 2110 | } |
| 2111 | |
| 2112 | if (linesPerBuf == 0) { |
| 2113 | /* nothing to do */ |
| 2114 | } |
| 2115 | else if (format == ZPixmap) { |
| 2116 | linesDone = 0; |
| 2117 | while (height - linesDone > 0) { |
| 2118 | nlines = min(linesPerBuf, height - linesDone); |
| 2119 | (*pDraw->pScreen->GetImage) (pDraw, |
| 2120 | x, |
| 2121 | y + linesDone, |
| 2122 | width, |
| 2123 | nlines, |
| 2124 | format, planemask, (pointer) pBuf); |
| 2125 | if (pVisibleRegion) |
| 2126 | XaceCensorImage(client, pVisibleRegion, widthBytesLine, |
| 2127 | pDraw, x, y + linesDone, width, |
| 2128 | nlines, format, pBuf); |
| 2129 | |
| 2130 | /* Note that this is NOT a call to WriteSwappedDataToClient, |
| 2131 | as we do NOT byte swap */ |
| 2132 | ReformatImage(pBuf, (int) (nlines * widthBytesLine), |
| 2133 | BitsPerPixel(pDraw->depth), ClientOrder(client)); |
| 2134 | |
| 2135 | WriteToClient(client, (int) (nlines * widthBytesLine), pBuf); |
| 2136 | linesDone += nlines; |
| 2137 | } |
| 2138 | } |
| 2139 | else { /* XYPixmap */ |
| 2140 | |
| 2141 | for (; plane; plane >>= 1) { |
| 2142 | if (planemask & plane) { |
| 2143 | linesDone = 0; |
| 2144 | while (height - linesDone > 0) { |
| 2145 | nlines = min(linesPerBuf, height - linesDone); |
| 2146 | (*pDraw->pScreen->GetImage) (pDraw, |
| 2147 | x, |
| 2148 | y + linesDone, |
| 2149 | width, |
| 2150 | nlines, |
| 2151 | format, plane, (pointer) pBuf); |
| 2152 | if (pVisibleRegion) |
| 2153 | XaceCensorImage(client, pVisibleRegion, |
| 2154 | widthBytesLine, |
| 2155 | pDraw, x, y + linesDone, width, |
| 2156 | nlines, format, pBuf); |
| 2157 | |
| 2158 | /* Note: NOT a call to WriteSwappedDataToClient, |
| 2159 | as we do NOT byte swap */ |
| 2160 | ReformatImage(pBuf, (int) (nlines * widthBytesLine), |
| 2161 | 1, ClientOrder(client)); |
| 2162 | |
| 2163 | WriteToClient(client, (int)(nlines * widthBytesLine), pBuf); |
| 2164 | linesDone += nlines; |
| 2165 | } |
| 2166 | } |
| 2167 | } |
| 2168 | } |
| 2169 | if (pVisibleRegion) |
| 2170 | RegionDestroy(pVisibleRegion); |
| 2171 | free(pBuf); |
| 2172 | return Success; |
| 2173 | } |
| 2174 | |
| 2175 | int |
| 2176 | ProcGetImage(ClientPtr client) |
| 2177 | { |
| 2178 | REQUEST(xGetImageReq); |
| 2179 | |
| 2180 | REQUEST_SIZE_MATCH(xGetImageReq); |
| 2181 | |
| 2182 | return DoGetImage(client, stuff->format, stuff->drawable, |
| 2183 | stuff->x, stuff->y, |
| 2184 | (int) stuff->width, (int) stuff->height, |
| 2185 | stuff->planeMask); |
| 2186 | } |
| 2187 | |
| 2188 | int |
| 2189 | ProcPolyText(ClientPtr client) |
| 2190 | { |
| 2191 | int err; |
| 2192 | |
| 2193 | REQUEST(xPolyTextReq); |
| 2194 | DrawablePtr pDraw; |
| 2195 | GC *pGC; |
| 2196 | |
| 2197 | REQUEST_AT_LEAST_SIZE(xPolyTextReq); |
| 2198 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 2199 | |
| 2200 | err = PolyText(client, |
| 2201 | pDraw, |
| 2202 | pGC, |
| 2203 | (unsigned char *) &stuff[1], |
| 2204 | ((unsigned char *) stuff) + (client->req_len << 2), |
| 2205 | stuff->x, stuff->y, stuff->reqType, stuff->drawable); |
| 2206 | |
| 2207 | if (err == Success) { |
| 2208 | return Success; |
| 2209 | } |
| 2210 | else |
| 2211 | return err; |
| 2212 | } |
| 2213 | |
| 2214 | int |
| 2215 | ProcImageText8(ClientPtr client) |
| 2216 | { |
| 2217 | int err; |
| 2218 | DrawablePtr pDraw; |
| 2219 | GC *pGC; |
| 2220 | |
| 2221 | REQUEST(xImageTextReq); |
| 2222 | |
| 2223 | REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars); |
| 2224 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 2225 | |
| 2226 | err = ImageText(client, |
| 2227 | pDraw, |
| 2228 | pGC, |
| 2229 | stuff->nChars, |
| 2230 | (unsigned char *) &stuff[1], |
| 2231 | stuff->x, stuff->y, stuff->reqType, stuff->drawable); |
| 2232 | |
| 2233 | if (err == Success) { |
| 2234 | return Success; |
| 2235 | } |
| 2236 | else |
| 2237 | return err; |
| 2238 | } |
| 2239 | |
| 2240 | int |
| 2241 | ProcImageText16(ClientPtr client) |
| 2242 | { |
| 2243 | int err; |
| 2244 | DrawablePtr pDraw; |
| 2245 | GC *pGC; |
| 2246 | |
| 2247 | REQUEST(xImageTextReq); |
| 2248 | |
| 2249 | REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars << 1); |
| 2250 | VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); |
| 2251 | |
| 2252 | err = ImageText(client, |
| 2253 | pDraw, |
| 2254 | pGC, |
| 2255 | stuff->nChars, |
| 2256 | (unsigned char *) &stuff[1], |
| 2257 | stuff->x, stuff->y, stuff->reqType, stuff->drawable); |
| 2258 | |
| 2259 | if (err == Success) { |
| 2260 | return Success; |
| 2261 | } |
| 2262 | else |
| 2263 | return err; |
| 2264 | } |
| 2265 | |
| 2266 | int |
| 2267 | ProcCreateColormap(ClientPtr client) |
| 2268 | { |
| 2269 | VisualPtr pVisual; |
| 2270 | ColormapPtr pmap; |
| 2271 | Colormap mid; |
| 2272 | WindowPtr pWin; |
| 2273 | ScreenPtr pScreen; |
| 2274 | |
| 2275 | REQUEST(xCreateColormapReq); |
| 2276 | int i, result; |
| 2277 | |
| 2278 | REQUEST_SIZE_MATCH(xCreateColormapReq); |
| 2279 | |
| 2280 | if ((stuff->alloc != AllocNone) && (stuff->alloc != AllocAll)) { |
| 2281 | client->errorValue = stuff->alloc; |
| 2282 | return BadValue; |
| 2283 | } |
| 2284 | mid = stuff->mid; |
| 2285 | LEGAL_NEW_RESOURCE(mid, client); |
| 2286 | result = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); |
| 2287 | if (result != Success) |
| 2288 | return result; |
| 2289 | |
| 2290 | pScreen = pWin->drawable.pScreen; |
| 2291 | for (i = 0, pVisual = pScreen->visuals; |
| 2292 | i < pScreen->numVisuals; i++, pVisual++) { |
| 2293 | if (pVisual->vid != stuff->visual) |
| 2294 | continue; |
| 2295 | return CreateColormap(mid, pScreen, pVisual, &pmap, |
| 2296 | (int) stuff->alloc, client->index); |
| 2297 | } |
| 2298 | client->errorValue = stuff->visual; |
| 2299 | return BadMatch; |
| 2300 | } |
| 2301 | |
| 2302 | int |
| 2303 | ProcFreeColormap(ClientPtr client) |
| 2304 | { |
| 2305 | ColormapPtr pmap; |
| 2306 | int rc; |
| 2307 | |
| 2308 | REQUEST(xResourceReq); |
| 2309 | |
| 2310 | REQUEST_SIZE_MATCH(xResourceReq); |
| 2311 | rc = dixLookupResourceByType((pointer *) &pmap, stuff->id, RT_COLORMAP, |
| 2312 | client, DixDestroyAccess); |
| 2313 | if (rc == Success) { |
| 2314 | /* Freeing a default colormap is a no-op */ |
| 2315 | if (!(pmap->flags & IsDefault)) |
| 2316 | FreeResource(stuff->id, RT_NONE); |
| 2317 | return Success; |
| 2318 | } |
| 2319 | else { |
| 2320 | client->errorValue = stuff->id; |
| 2321 | return rc; |
| 2322 | } |
| 2323 | } |
| 2324 | |
| 2325 | int |
| 2326 | ProcCopyColormapAndFree(ClientPtr client) |
| 2327 | { |
| 2328 | Colormap mid; |
| 2329 | ColormapPtr pSrcMap; |
| 2330 | |
| 2331 | REQUEST(xCopyColormapAndFreeReq); |
| 2332 | int rc; |
| 2333 | |
| 2334 | REQUEST_SIZE_MATCH(xCopyColormapAndFreeReq); |
| 2335 | mid = stuff->mid; |
| 2336 | LEGAL_NEW_RESOURCE(mid, client); |
| 2337 | rc = dixLookupResourceByType((pointer *) &pSrcMap, stuff->srcCmap, |
| 2338 | RT_COLORMAP, client, |
| 2339 | DixReadAccess | DixRemoveAccess); |
| 2340 | if (rc == Success) |
| 2341 | return CopyColormapAndFree(mid, pSrcMap, client->index); |
| 2342 | client->errorValue = stuff->srcCmap; |
| 2343 | return rc; |
| 2344 | } |
| 2345 | |
| 2346 | int |
| 2347 | ProcInstallColormap(ClientPtr client) |
| 2348 | { |
| 2349 | ColormapPtr pcmp; |
| 2350 | int rc; |
| 2351 | |
| 2352 | REQUEST(xResourceReq); |
| 2353 | REQUEST_SIZE_MATCH(xResourceReq); |
| 2354 | |
| 2355 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->id, RT_COLORMAP, |
| 2356 | client, DixInstallAccess); |
| 2357 | if (rc != Success) |
| 2358 | goto out; |
| 2359 | |
| 2360 | rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess); |
| 2361 | if (rc != Success) { |
| 2362 | if (rc == BadValue) |
| 2363 | rc = BadColor; |
| 2364 | goto out; |
| 2365 | } |
| 2366 | |
| 2367 | (*(pcmp->pScreen->InstallColormap)) (pcmp); |
| 2368 | return Success; |
| 2369 | |
| 2370 | out: |
| 2371 | client->errorValue = stuff->id; |
| 2372 | return rc; |
| 2373 | } |
| 2374 | |
| 2375 | int |
| 2376 | ProcUninstallColormap(ClientPtr client) |
| 2377 | { |
| 2378 | ColormapPtr pcmp; |
| 2379 | int rc; |
| 2380 | |
| 2381 | REQUEST(xResourceReq); |
| 2382 | REQUEST_SIZE_MATCH(xResourceReq); |
| 2383 | |
| 2384 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->id, RT_COLORMAP, |
| 2385 | client, DixUninstallAccess); |
| 2386 | if (rc != Success) |
| 2387 | goto out; |
| 2388 | |
| 2389 | rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess); |
| 2390 | if (rc != Success) { |
| 2391 | if (rc == BadValue) |
| 2392 | rc = BadColor; |
| 2393 | goto out; |
| 2394 | } |
| 2395 | |
| 2396 | if (pcmp->mid != pcmp->pScreen->defColormap) |
| 2397 | (*(pcmp->pScreen->UninstallColormap)) (pcmp); |
| 2398 | return Success; |
| 2399 | |
| 2400 | out: |
| 2401 | client->errorValue = stuff->id; |
| 2402 | return rc; |
| 2403 | } |
| 2404 | |
| 2405 | int |
| 2406 | ProcListInstalledColormaps(ClientPtr client) |
| 2407 | { |
| 2408 | xListInstalledColormapsReply *preply; |
| 2409 | int nummaps, rc; |
| 2410 | WindowPtr pWin; |
| 2411 | |
| 2412 | REQUEST(xResourceReq); |
| 2413 | REQUEST_SIZE_MATCH(xResourceReq); |
| 2414 | |
| 2415 | rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess); |
| 2416 | if (rc != Success) |
| 2417 | return rc; |
| 2418 | |
| 2419 | rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen, |
| 2420 | DixGetAttrAccess); |
| 2421 | if (rc != Success) |
| 2422 | return rc; |
| 2423 | |
| 2424 | preply = malloc(sizeof(xListInstalledColormapsReply) + |
| 2425 | pWin->drawable.pScreen->maxInstalledCmaps * |
| 2426 | sizeof(Colormap)); |
| 2427 | if (!preply) |
| 2428 | return BadAlloc; |
| 2429 | |
| 2430 | preply->type = X_Reply; |
| 2431 | preply->sequenceNumber = client->sequence; |
| 2432 | nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps) |
| 2433 | (pWin->drawable.pScreen, (Colormap *) &preply[1]); |
| 2434 | preply->nColormaps = nummaps; |
| 2435 | preply->length = nummaps; |
| 2436 | WriteReplyToClient(client, sizeof(xListInstalledColormapsReply), preply); |
| 2437 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 2438 | WriteSwappedDataToClient(client, nummaps * sizeof(Colormap), &preply[1]); |
| 2439 | free(preply); |
| 2440 | return Success; |
| 2441 | } |
| 2442 | |
| 2443 | int |
| 2444 | ProcAllocColor(ClientPtr client) |
| 2445 | { |
| 2446 | ColormapPtr pmap; |
| 2447 | int rc; |
| 2448 | |
| 2449 | REQUEST(xAllocColorReq); |
| 2450 | |
| 2451 | REQUEST_SIZE_MATCH(xAllocColorReq); |
| 2452 | rc = dixLookupResourceByType((pointer *) &pmap, stuff->cmap, RT_COLORMAP, |
| 2453 | client, DixAddAccess); |
| 2454 | if (rc == Success) { |
| 2455 | xAllocColorReply acr = { |
| 2456 | .type = X_Reply, |
| 2457 | .sequenceNumber = client->sequence, |
| 2458 | .length = 0, |
| 2459 | .red = stuff->red, |
| 2460 | .green = stuff->green, |
| 2461 | .blue = stuff->blue, |
| 2462 | .pixel = 0 |
| 2463 | }; |
| 2464 | if ((rc = AllocColor(pmap, &acr.red, &acr.green, &acr.blue, |
| 2465 | &acr.pixel, client->index))) |
| 2466 | return rc; |
| 2467 | #ifdef PANORAMIX |
| 2468 | if (noPanoramiXExtension || !pmap->pScreen->myNum) |
| 2469 | #endif |
| 2470 | WriteReplyToClient(client, sizeof(xAllocColorReply), &acr); |
| 2471 | return Success; |
| 2472 | |
| 2473 | } |
| 2474 | else { |
| 2475 | client->errorValue = stuff->cmap; |
| 2476 | return rc; |
| 2477 | } |
| 2478 | } |
| 2479 | |
| 2480 | int |
| 2481 | ProcAllocNamedColor(ClientPtr client) |
| 2482 | { |
| 2483 | ColormapPtr pcmp; |
| 2484 | int rc; |
| 2485 | |
| 2486 | REQUEST(xAllocNamedColorReq); |
| 2487 | |
| 2488 | REQUEST_FIXED_SIZE(xAllocNamedColorReq, stuff->nbytes); |
| 2489 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2490 | client, DixAddAccess); |
| 2491 | if (rc == Success) { |
| 2492 | xAllocNamedColorReply ancr = { |
| 2493 | .type = X_Reply, |
| 2494 | .sequenceNumber = client->sequence, |
| 2495 | .length = 0 |
| 2496 | }; |
| 2497 | if (OsLookupColor |
| 2498 | (pcmp->pScreen->myNum, (char *) &stuff[1], stuff->nbytes, |
| 2499 | &ancr.exactRed, &ancr.exactGreen, &ancr.exactBlue)) { |
| 2500 | ancr.screenRed = ancr.exactRed; |
| 2501 | ancr.screenGreen = ancr.exactGreen; |
| 2502 | ancr.screenBlue = ancr.exactBlue; |
| 2503 | ancr.pixel = 0; |
| 2504 | if ((rc = AllocColor(pcmp, |
| 2505 | &ancr.screenRed, &ancr.screenGreen, |
| 2506 | &ancr.screenBlue, &ancr.pixel, client->index))) |
| 2507 | return rc; |
| 2508 | #ifdef PANORAMIX |
| 2509 | if (noPanoramiXExtension || !pcmp->pScreen->myNum) |
| 2510 | #endif |
| 2511 | WriteReplyToClient(client, sizeof(xAllocNamedColorReply), |
| 2512 | &ancr); |
| 2513 | return Success; |
| 2514 | } |
| 2515 | else |
| 2516 | return BadName; |
| 2517 | |
| 2518 | } |
| 2519 | else { |
| 2520 | client->errorValue = stuff->cmap; |
| 2521 | return rc; |
| 2522 | } |
| 2523 | } |
| 2524 | |
| 2525 | int |
| 2526 | ProcAllocColorCells(ClientPtr client) |
| 2527 | { |
| 2528 | ColormapPtr pcmp; |
| 2529 | int rc; |
| 2530 | |
| 2531 | REQUEST(xAllocColorCellsReq); |
| 2532 | |
| 2533 | REQUEST_SIZE_MATCH(xAllocColorCellsReq); |
| 2534 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2535 | client, DixAddAccess); |
| 2536 | if (rc == Success) { |
| 2537 | int npixels, nmasks; |
| 2538 | long length; |
| 2539 | Pixel *ppixels, *pmasks; |
| 2540 | |
| 2541 | npixels = stuff->colors; |
| 2542 | if (!npixels) { |
| 2543 | client->errorValue = npixels; |
| 2544 | return BadValue; |
| 2545 | } |
| 2546 | if (stuff->contiguous != xTrue && stuff->contiguous != xFalse) { |
| 2547 | client->errorValue = stuff->contiguous; |
| 2548 | return BadValue; |
| 2549 | } |
| 2550 | nmasks = stuff->planes; |
| 2551 | length = ((long) npixels + (long) nmasks) * sizeof(Pixel); |
| 2552 | ppixels = malloc(length); |
| 2553 | if (!ppixels) |
| 2554 | return BadAlloc; |
| 2555 | pmasks = ppixels + npixels; |
| 2556 | |
| 2557 | if ((rc = AllocColorCells(client->index, pcmp, npixels, nmasks, |
| 2558 | (Bool) stuff->contiguous, ppixels, pmasks))) { |
| 2559 | free(ppixels); |
| 2560 | return rc; |
| 2561 | } |
| 2562 | #ifdef PANORAMIX |
| 2563 | if (noPanoramiXExtension || !pcmp->pScreen->myNum) |
| 2564 | #endif |
| 2565 | { |
| 2566 | xAllocColorCellsReply accr = { |
| 2567 | .type = X_Reply, |
| 2568 | .sequenceNumber = client->sequence, |
| 2569 | .length = bytes_to_int32(length), |
| 2570 | .nPixels = npixels, |
| 2571 | .nMasks = nmasks |
| 2572 | }; |
| 2573 | WriteReplyToClient(client, sizeof(xAllocColorCellsReply), &accr); |
| 2574 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 2575 | WriteSwappedDataToClient(client, length, ppixels); |
| 2576 | } |
| 2577 | free(ppixels); |
| 2578 | return Success; |
| 2579 | } |
| 2580 | else { |
| 2581 | client->errorValue = stuff->cmap; |
| 2582 | return rc; |
| 2583 | } |
| 2584 | } |
| 2585 | |
| 2586 | int |
| 2587 | ProcAllocColorPlanes(ClientPtr client) |
| 2588 | { |
| 2589 | ColormapPtr pcmp; |
| 2590 | int rc; |
| 2591 | |
| 2592 | REQUEST(xAllocColorPlanesReq); |
| 2593 | |
| 2594 | REQUEST_SIZE_MATCH(xAllocColorPlanesReq); |
| 2595 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2596 | client, DixAddAccess); |
| 2597 | if (rc == Success) { |
| 2598 | xAllocColorPlanesReply acpr; |
| 2599 | int npixels; |
| 2600 | long length; |
| 2601 | Pixel *ppixels; |
| 2602 | |
| 2603 | npixels = stuff->colors; |
| 2604 | if (!npixels) { |
| 2605 | client->errorValue = npixels; |
| 2606 | return BadValue; |
| 2607 | } |
| 2608 | if (stuff->contiguous != xTrue && stuff->contiguous != xFalse) { |
| 2609 | client->errorValue = stuff->contiguous; |
| 2610 | return BadValue; |
| 2611 | } |
| 2612 | acpr = (xAllocColorPlanesReply) { |
| 2613 | .type = X_Reply, |
| 2614 | .sequenceNumber = client->sequence, |
| 2615 | .nPixels = npixels |
| 2616 | }; |
| 2617 | length = (long) npixels *sizeof(Pixel); |
| 2618 | |
| 2619 | ppixels = malloc(length); |
| 2620 | if (!ppixels) |
| 2621 | return BadAlloc; |
| 2622 | if ((rc = AllocColorPlanes(client->index, pcmp, npixels, |
| 2623 | (int) stuff->red, (int) stuff->green, |
| 2624 | (int) stuff->blue, (Bool) stuff->contiguous, |
| 2625 | ppixels, &acpr.redMask, &acpr.greenMask, |
| 2626 | &acpr.blueMask))) { |
| 2627 | free(ppixels); |
| 2628 | return rc; |
| 2629 | } |
| 2630 | acpr.length = bytes_to_int32(length); |
| 2631 | #ifdef PANORAMIX |
| 2632 | if (noPanoramiXExtension || !pcmp->pScreen->myNum) |
| 2633 | #endif |
| 2634 | { |
| 2635 | WriteReplyToClient(client, sizeof(xAllocColorPlanesReply), &acpr); |
| 2636 | client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; |
| 2637 | WriteSwappedDataToClient(client, length, ppixels); |
| 2638 | } |
| 2639 | free(ppixels); |
| 2640 | return Success; |
| 2641 | } |
| 2642 | else { |
| 2643 | client->errorValue = stuff->cmap; |
| 2644 | return rc; |
| 2645 | } |
| 2646 | } |
| 2647 | |
| 2648 | int |
| 2649 | ProcFreeColors(ClientPtr client) |
| 2650 | { |
| 2651 | ColormapPtr pcmp; |
| 2652 | int rc; |
| 2653 | |
| 2654 | REQUEST(xFreeColorsReq); |
| 2655 | |
| 2656 | REQUEST_AT_LEAST_SIZE(xFreeColorsReq); |
| 2657 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2658 | client, DixRemoveAccess); |
| 2659 | if (rc == Success) { |
| 2660 | int count; |
| 2661 | |
| 2662 | if (pcmp->flags & AllAllocated) |
| 2663 | return BadAccess; |
| 2664 | count = bytes_to_int32((client->req_len << 2) - sizeof(xFreeColorsReq)); |
| 2665 | return FreeColors(pcmp, client->index, count, |
| 2666 | (Pixel *) &stuff[1], (Pixel) stuff->planeMask); |
| 2667 | } |
| 2668 | else { |
| 2669 | client->errorValue = stuff->cmap; |
| 2670 | return rc; |
| 2671 | } |
| 2672 | } |
| 2673 | |
| 2674 | int |
| 2675 | ProcStoreColors(ClientPtr client) |
| 2676 | { |
| 2677 | ColormapPtr pcmp; |
| 2678 | int rc; |
| 2679 | |
| 2680 | REQUEST(xStoreColorsReq); |
| 2681 | |
| 2682 | REQUEST_AT_LEAST_SIZE(xStoreColorsReq); |
| 2683 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2684 | client, DixWriteAccess); |
| 2685 | if (rc == Success) { |
| 2686 | int count; |
| 2687 | |
| 2688 | count = (client->req_len << 2) - sizeof(xStoreColorsReq); |
| 2689 | if (count % sizeof(xColorItem)) |
| 2690 | return BadLength; |
| 2691 | count /= sizeof(xColorItem); |
| 2692 | return StoreColors(pcmp, count, (xColorItem *) &stuff[1], client); |
| 2693 | } |
| 2694 | else { |
| 2695 | client->errorValue = stuff->cmap; |
| 2696 | return rc; |
| 2697 | } |
| 2698 | } |
| 2699 | |
| 2700 | int |
| 2701 | ProcStoreNamedColor(ClientPtr client) |
| 2702 | { |
| 2703 | ColormapPtr pcmp; |
| 2704 | int rc; |
| 2705 | |
| 2706 | REQUEST(xStoreNamedColorReq); |
| 2707 | |
| 2708 | REQUEST_FIXED_SIZE(xStoreNamedColorReq, stuff->nbytes); |
| 2709 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2710 | client, DixWriteAccess); |
| 2711 | if (rc == Success) { |
| 2712 | xColorItem def; |
| 2713 | |
| 2714 | if (OsLookupColor(pcmp->pScreen->myNum, (char *) &stuff[1], |
| 2715 | stuff->nbytes, &def.red, &def.green, &def.blue)) { |
| 2716 | def.flags = stuff->flags; |
| 2717 | def.pixel = stuff->pixel; |
| 2718 | return StoreColors(pcmp, 1, &def, client); |
| 2719 | } |
| 2720 | return BadName; |
| 2721 | } |
| 2722 | else { |
| 2723 | client->errorValue = stuff->cmap; |
| 2724 | return rc; |
| 2725 | } |
| 2726 | } |
| 2727 | |
| 2728 | int |
| 2729 | ProcQueryColors(ClientPtr client) |
| 2730 | { |
| 2731 | ColormapPtr pcmp; |
| 2732 | int rc; |
| 2733 | |
| 2734 | REQUEST(xQueryColorsReq); |
| 2735 | |
| 2736 | REQUEST_AT_LEAST_SIZE(xQueryColorsReq); |
| 2737 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2738 | client, DixReadAccess); |
| 2739 | if (rc == Success) { |
| 2740 | int count; |
| 2741 | xrgb *prgbs; |
| 2742 | xQueryColorsReply qcr; |
| 2743 | |
| 2744 | count = |
| 2745 | bytes_to_int32((client->req_len << 2) - sizeof(xQueryColorsReq)); |
| 2746 | prgbs = calloc(1, count * sizeof(xrgb)); |
| 2747 | if (!prgbs && count) |
| 2748 | return BadAlloc; |
| 2749 | if ((rc = |
| 2750 | QueryColors(pcmp, count, (Pixel *) &stuff[1], prgbs, client))) { |
| 2751 | free(prgbs); |
| 2752 | return rc; |
| 2753 | } |
| 2754 | qcr = (xQueryColorsReply) { |
| 2755 | .type = X_Reply, |
| 2756 | .sequenceNumber = client->sequence, |
| 2757 | .length = bytes_to_int32(count * sizeof(xrgb)), |
| 2758 | .nColors = count |
| 2759 | }; |
| 2760 | WriteReplyToClient(client, sizeof(xQueryColorsReply), &qcr); |
| 2761 | if (count) { |
| 2762 | client->pSwapReplyFunc = (ReplySwapPtr) SQColorsExtend; |
| 2763 | WriteSwappedDataToClient(client, count * sizeof(xrgb), prgbs); |
| 2764 | } |
| 2765 | free(prgbs); |
| 2766 | return Success; |
| 2767 | |
| 2768 | } |
| 2769 | else { |
| 2770 | client->errorValue = stuff->cmap; |
| 2771 | return rc; |
| 2772 | } |
| 2773 | } |
| 2774 | |
| 2775 | int |
| 2776 | ProcLookupColor(ClientPtr client) |
| 2777 | { |
| 2778 | ColormapPtr pcmp; |
| 2779 | int rc; |
| 2780 | |
| 2781 | REQUEST(xLookupColorReq); |
| 2782 | |
| 2783 | REQUEST_FIXED_SIZE(xLookupColorReq, stuff->nbytes); |
| 2784 | rc = dixLookupResourceByType((pointer *) &pcmp, stuff->cmap, RT_COLORMAP, |
| 2785 | client, DixReadAccess); |
| 2786 | if (rc == Success) { |
| 2787 | CARD16 exactRed, exactGreen, exactBlue; |
| 2788 | |
| 2789 | if (OsLookupColor |
| 2790 | (pcmp->pScreen->myNum, (char *) &stuff[1], stuff->nbytes, |
| 2791 | &exactRed, &exactGreen, &exactBlue)) { |
| 2792 | xLookupColorReply lcr = { |
| 2793 | .type = X_Reply, |
| 2794 | .sequenceNumber = client->sequence, |
| 2795 | .length = 0, |
| 2796 | .exactRed = exactRed, |
| 2797 | .exactGreen = exactGreen, |
| 2798 | .exactBlue = exactBlue, |
| 2799 | .screenRed = exactRed, |
| 2800 | .screenGreen = exactGreen, |
| 2801 | .screenBlue = exactBlue |
| 2802 | }; |
| 2803 | (*pcmp->pScreen->ResolveColor) (&lcr.screenRed, |
| 2804 | &lcr.screenGreen, |
| 2805 | &lcr.screenBlue, pcmp->pVisual); |
| 2806 | WriteReplyToClient(client, sizeof(xLookupColorReply), &lcr); |
| 2807 | return Success; |
| 2808 | } |
| 2809 | return BadName; |
| 2810 | } |
| 2811 | else { |
| 2812 | client->errorValue = stuff->cmap; |
| 2813 | return rc; |
| 2814 | } |
| 2815 | } |
| 2816 | |
| 2817 | int |
| 2818 | ProcCreateCursor(ClientPtr client) |
| 2819 | { |
| 2820 | CursorPtr pCursor; |
| 2821 | PixmapPtr src; |
| 2822 | PixmapPtr msk; |
| 2823 | unsigned char *srcbits; |
| 2824 | unsigned char *mskbits; |
| 2825 | unsigned short width, height; |
| 2826 | long n; |
| 2827 | CursorMetricRec cm; |
| 2828 | int rc; |
| 2829 | |
| 2830 | REQUEST(xCreateCursorReq); |
| 2831 | |
| 2832 | REQUEST_SIZE_MATCH(xCreateCursorReq); |
| 2833 | LEGAL_NEW_RESOURCE(stuff->cid, client); |
| 2834 | |
| 2835 | rc = dixLookupResourceByType((pointer *) &src, stuff->source, RT_PIXMAP, |
| 2836 | client, DixReadAccess); |
| 2837 | if (rc != Success) { |
| 2838 | client->errorValue = stuff->source; |
| 2839 | return rc; |
| 2840 | } |
| 2841 | |
| 2842 | if (src->drawable.depth != 1) |
| 2843 | return (BadMatch); |
| 2844 | |
| 2845 | /* Find and validate cursor mask pixmap, if one is provided */ |
| 2846 | if (stuff->mask != None) { |
| 2847 | rc = dixLookupResourceByType((pointer *) &msk, stuff->mask, RT_PIXMAP, |
| 2848 | client, DixReadAccess); |
| 2849 | if (rc != Success) { |
| 2850 | client->errorValue = stuff->mask; |
| 2851 | return rc; |
| 2852 | } |
| 2853 | |
| 2854 | if (src->drawable.width != msk->drawable.width |
| 2855 | || src->drawable.height != msk->drawable.height |
| 2856 | || src->drawable.depth != 1 || msk->drawable.depth != 1) |
| 2857 | return BadMatch; |
| 2858 | } |
| 2859 | else |
| 2860 | msk = NULL; |
| 2861 | |
| 2862 | width = src->drawable.width; |
| 2863 | height = src->drawable.height; |
| 2864 | |
| 2865 | if (stuff->x > width || stuff->y > height) |
| 2866 | return BadMatch; |
| 2867 | |
| 2868 | n = BitmapBytePad(width) * height; |
| 2869 | srcbits = calloc(1, n); |
| 2870 | if (!srcbits) |
| 2871 | return BadAlloc; |
| 2872 | mskbits = malloc(n); |
| 2873 | if (!mskbits) { |
| 2874 | free(srcbits); |
| 2875 | return BadAlloc; |
| 2876 | } |
| 2877 | |
| 2878 | (*src->drawable.pScreen->GetImage) ((DrawablePtr) src, 0, 0, width, height, |
| 2879 | XYPixmap, 1, (pointer) srcbits); |
| 2880 | if (msk == (PixmapPtr) NULL) { |
| 2881 | unsigned char *bits = mskbits; |
| 2882 | |
| 2883 | while (--n >= 0) |
| 2884 | *bits++ = ~0; |
| 2885 | } |
| 2886 | else { |
| 2887 | /* zeroing the (pad) bits helps some ddx cursor handling */ |
| 2888 | memset((char *) mskbits, 0, n); |
| 2889 | (*msk->drawable.pScreen->GetImage) ((DrawablePtr) msk, 0, 0, width, |
| 2890 | height, XYPixmap, 1, |
| 2891 | (pointer) mskbits); |
| 2892 | } |
| 2893 | cm.width = width; |
| 2894 | cm.height = height; |
| 2895 | cm.xhot = stuff->x; |
| 2896 | cm.yhot = stuff->y; |
| 2897 | rc = AllocARGBCursor(srcbits, mskbits, NULL, &cm, |
| 2898 | stuff->foreRed, stuff->foreGreen, stuff->foreBlue, |
| 2899 | stuff->backRed, stuff->backGreen, stuff->backBlue, |
| 2900 | &pCursor, client, stuff->cid); |
| 2901 | |
| 2902 | if (rc != Success) |
| 2903 | goto bail; |
| 2904 | if (!AddResource(stuff->cid, RT_CURSOR, (pointer) pCursor)) { |
| 2905 | rc = BadAlloc; |
| 2906 | goto bail; |
| 2907 | } |
| 2908 | |
| 2909 | return Success; |
| 2910 | bail: |
| 2911 | free(srcbits); |
| 2912 | free(mskbits); |
| 2913 | return rc; |
| 2914 | } |
| 2915 | |
| 2916 | int |
| 2917 | ProcCreateGlyphCursor(ClientPtr client) |
| 2918 | { |
| 2919 | CursorPtr pCursor; |
| 2920 | int res; |
| 2921 | |
| 2922 | REQUEST(xCreateGlyphCursorReq); |
| 2923 | |
| 2924 | REQUEST_SIZE_MATCH(xCreateGlyphCursorReq); |
| 2925 | LEGAL_NEW_RESOURCE(stuff->cid, client); |
| 2926 | |
| 2927 | res = AllocGlyphCursor(stuff->source, stuff->sourceChar, |
| 2928 | stuff->mask, stuff->maskChar, |
| 2929 | stuff->foreRed, stuff->foreGreen, stuff->foreBlue, |
| 2930 | stuff->backRed, stuff->backGreen, stuff->backBlue, |
| 2931 | &pCursor, client, stuff->cid); |
| 2932 | if (res != Success) |
| 2933 | return res; |
| 2934 | if (AddResource(stuff->cid, RT_CURSOR, (pointer) pCursor)) |
| 2935 | return Success; |
| 2936 | return BadAlloc; |
| 2937 | } |
| 2938 | |
| 2939 | int |
| 2940 | ProcFreeCursor(ClientPtr client) |
| 2941 | { |
| 2942 | CursorPtr pCursor; |
| 2943 | int rc; |
| 2944 | |
| 2945 | REQUEST(xResourceReq); |
| 2946 | |
| 2947 | REQUEST_SIZE_MATCH(xResourceReq); |
| 2948 | rc = dixLookupResourceByType((pointer *) &pCursor, stuff->id, RT_CURSOR, |
| 2949 | client, DixDestroyAccess); |
| 2950 | if (rc == Success) { |
| 2951 | FreeResource(stuff->id, RT_NONE); |
| 2952 | return Success; |
| 2953 | } |
| 2954 | else { |
| 2955 | client->errorValue = stuff->id; |
| 2956 | return rc; |
| 2957 | } |
| 2958 | } |
| 2959 | |
| 2960 | int |
| 2961 | ProcQueryBestSize(ClientPtr client) |
| 2962 | { |
| 2963 | xQueryBestSizeReply reply; |
| 2964 | DrawablePtr pDraw; |
| 2965 | ScreenPtr pScreen; |
| 2966 | int rc; |
| 2967 | |
| 2968 | REQUEST(xQueryBestSizeReq); |
| 2969 | REQUEST_SIZE_MATCH(xQueryBestSizeReq); |
| 2970 | |
| 2971 | if ((stuff->class != CursorShape) && |
| 2972 | (stuff->class != TileShape) && (stuff->class != StippleShape)) { |
| 2973 | client->errorValue = stuff->class; |
| 2974 | return BadValue; |
| 2975 | } |
| 2976 | |
| 2977 | rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, |
| 2978 | DixGetAttrAccess); |
| 2979 | if (rc != Success) |
| 2980 | return rc; |
| 2981 | if (stuff->class != CursorShape && pDraw->type == UNDRAWABLE_WINDOW) |
| 2982 | return BadMatch; |
| 2983 | pScreen = pDraw->pScreen; |
| 2984 | rc = XaceHook(XACE_SCREEN_ACCESS, client, pScreen, DixGetAttrAccess); |
| 2985 | if (rc != Success) |
| 2986 | return rc; |
| 2987 | (*pScreen->QueryBestSize) (stuff->class, &stuff->width, |
| 2988 | &stuff->height, pScreen); |
| 2989 | reply = (xQueryBestSizeReply) { |
| 2990 | .type = X_Reply, |
| 2991 | .sequenceNumber = client->sequence, |
| 2992 | .length = 0, |
| 2993 | .width = stuff->width, |
| 2994 | .height = stuff->height |
| 2995 | }; |
| 2996 | WriteReplyToClient(client, sizeof(xQueryBestSizeReply), &reply); |
| 2997 | return Success; |
| 2998 | } |
| 2999 | |
| 3000 | int |
| 3001 | ProcSetScreenSaver(ClientPtr client) |
| 3002 | { |
| 3003 | int rc, i, blankingOption, exposureOption; |
| 3004 | |
| 3005 | REQUEST(xSetScreenSaverReq); |
| 3006 | REQUEST_SIZE_MATCH(xSetScreenSaverReq); |
| 3007 | |
| 3008 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 3009 | rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i], |
| 3010 | DixSetAttrAccess); |
| 3011 | if (rc != Success) |
| 3012 | return rc; |
| 3013 | } |
| 3014 | |
| 3015 | blankingOption = stuff->preferBlank; |
| 3016 | if ((blankingOption != DontPreferBlanking) && |
| 3017 | (blankingOption != PreferBlanking) && |
| 3018 | (blankingOption != DefaultBlanking)) { |
| 3019 | client->errorValue = blankingOption; |
| 3020 | return BadValue; |
| 3021 | } |
| 3022 | exposureOption = stuff->allowExpose; |
| 3023 | if ((exposureOption != DontAllowExposures) && |
| 3024 | (exposureOption != AllowExposures) && |
| 3025 | (exposureOption != DefaultExposures)) { |
| 3026 | client->errorValue = exposureOption; |
| 3027 | return BadValue; |
| 3028 | } |
| 3029 | if (stuff->timeout < -1) { |
| 3030 | client->errorValue = stuff->timeout; |
| 3031 | return BadValue; |
| 3032 | } |
| 3033 | if (stuff->interval < -1) { |
| 3034 | client->errorValue = stuff->interval; |
| 3035 | return BadValue; |
| 3036 | } |
| 3037 | |
| 3038 | if (blankingOption == DefaultBlanking) |
| 3039 | ScreenSaverBlanking = defaultScreenSaverBlanking; |
| 3040 | else |
| 3041 | ScreenSaverBlanking = blankingOption; |
| 3042 | if (exposureOption == DefaultExposures) |
| 3043 | ScreenSaverAllowExposures = defaultScreenSaverAllowExposures; |
| 3044 | else |
| 3045 | ScreenSaverAllowExposures = exposureOption; |
| 3046 | |
| 3047 | if (stuff->timeout >= 0) |
| 3048 | ScreenSaverTime = stuff->timeout * MILLI_PER_SECOND; |
| 3049 | else |
| 3050 | ScreenSaverTime = defaultScreenSaverTime; |
| 3051 | if (stuff->interval >= 0) |
| 3052 | ScreenSaverInterval = stuff->interval * MILLI_PER_SECOND; |
| 3053 | else |
| 3054 | ScreenSaverInterval = defaultScreenSaverInterval; |
| 3055 | |
| 3056 | SetScreenSaverTimer(); |
| 3057 | return Success; |
| 3058 | } |
| 3059 | |
| 3060 | int |
| 3061 | ProcGetScreenSaver(ClientPtr client) |
| 3062 | { |
| 3063 | xGetScreenSaverReply rep; |
| 3064 | int rc, i; |
| 3065 | |
| 3066 | REQUEST_SIZE_MATCH(xReq); |
| 3067 | |
| 3068 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 3069 | rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i], |
| 3070 | DixGetAttrAccess); |
| 3071 | if (rc != Success) |
| 3072 | return rc; |
| 3073 | } |
| 3074 | |
| 3075 | rep = (xGetScreenSaverReply) { |
| 3076 | .type = X_Reply, |
| 3077 | .sequenceNumber = client->sequence, |
| 3078 | .length = 0, |
| 3079 | .timeout = ScreenSaverTime / MILLI_PER_SECOND, |
| 3080 | .interval = ScreenSaverInterval / MILLI_PER_SECOND, |
| 3081 | .preferBlanking = ScreenSaverBlanking, |
| 3082 | .allowExposures = ScreenSaverAllowExposures |
| 3083 | }; |
| 3084 | WriteReplyToClient(client, sizeof(xGetScreenSaverReply), &rep); |
| 3085 | return Success; |
| 3086 | } |
| 3087 | |
| 3088 | int |
| 3089 | ProcChangeHosts(ClientPtr client) |
| 3090 | { |
| 3091 | REQUEST(xChangeHostsReq); |
| 3092 | |
| 3093 | REQUEST_FIXED_SIZE(xChangeHostsReq, stuff->hostLength); |
| 3094 | |
| 3095 | if (stuff->mode == HostInsert) |
| 3096 | return AddHost(client, (int) stuff->hostFamily, |
| 3097 | stuff->hostLength, (pointer) &stuff[1]); |
| 3098 | if (stuff->mode == HostDelete) |
| 3099 | return RemoveHost(client, (int) stuff->hostFamily, |
| 3100 | stuff->hostLength, (pointer) &stuff[1]); |
| 3101 | client->errorValue = stuff->mode; |
| 3102 | return BadValue; |
| 3103 | } |
| 3104 | |
| 3105 | int |
| 3106 | ProcListHosts(ClientPtr client) |
| 3107 | { |
| 3108 | xListHostsReply reply; |
| 3109 | int len, nHosts, result; |
| 3110 | BOOL enabled; |
| 3111 | pointer pdata; |
| 3112 | |
| 3113 | /* REQUEST(xListHostsReq); */ |
| 3114 | |
| 3115 | REQUEST_SIZE_MATCH(xListHostsReq); |
| 3116 | |
| 3117 | /* untrusted clients can't list hosts */ |
| 3118 | result = XaceHook(XACE_SERVER_ACCESS, client, DixReadAccess); |
| 3119 | if (result != Success) |
| 3120 | return result; |
| 3121 | |
| 3122 | result = GetHosts(&pdata, &nHosts, &len, &enabled); |
| 3123 | if (result != Success) |
| 3124 | return result; |
| 3125 | |
| 3126 | reply = (xListHostsReply) { |
| 3127 | .type = X_Reply, |
| 3128 | .enabled = enabled, |
| 3129 | .sequenceNumber = client->sequence, |
| 3130 | .length = bytes_to_int32(len), |
| 3131 | .nHosts = nHosts |
| 3132 | }; |
| 3133 | WriteReplyToClient(client, sizeof(xListHostsReply), &reply); |
| 3134 | if (nHosts) { |
| 3135 | client->pSwapReplyFunc = (ReplySwapPtr) SLHostsExtend; |
| 3136 | WriteSwappedDataToClient(client, len, pdata); |
| 3137 | } |
| 3138 | free(pdata); |
| 3139 | return Success; |
| 3140 | } |
| 3141 | |
| 3142 | int |
| 3143 | ProcChangeAccessControl(ClientPtr client) |
| 3144 | { |
| 3145 | REQUEST(xSetAccessControlReq); |
| 3146 | |
| 3147 | REQUEST_SIZE_MATCH(xSetAccessControlReq); |
| 3148 | if ((stuff->mode != EnableAccess) && (stuff->mode != DisableAccess)) { |
| 3149 | client->errorValue = stuff->mode; |
| 3150 | return BadValue; |
| 3151 | } |
| 3152 | return ChangeAccessControl(client, stuff->mode == EnableAccess); |
| 3153 | } |
| 3154 | |
| 3155 | /********************* |
| 3156 | * CloseDownRetainedResources |
| 3157 | * |
| 3158 | * Find all clients that are gone and have terminated in RetainTemporary |
| 3159 | * and destroy their resources. |
| 3160 | *********************/ |
| 3161 | |
| 3162 | static void |
| 3163 | CloseDownRetainedResources(void) |
| 3164 | { |
| 3165 | int i; |
| 3166 | ClientPtr client; |
| 3167 | |
| 3168 | for (i = 1; i < currentMaxClients; i++) { |
| 3169 | client = clients[i]; |
| 3170 | if (client && (client->closeDownMode == RetainTemporary) |
| 3171 | && (client->clientGone)) |
| 3172 | CloseDownClient(client); |
| 3173 | } |
| 3174 | } |
| 3175 | |
| 3176 | int |
| 3177 | ProcKillClient(ClientPtr client) |
| 3178 | { |
| 3179 | REQUEST(xResourceReq); |
| 3180 | ClientPtr killclient; |
| 3181 | int rc; |
| 3182 | |
| 3183 | REQUEST_SIZE_MATCH(xResourceReq); |
| 3184 | if (stuff->id == AllTemporary) { |
| 3185 | CloseDownRetainedResources(); |
| 3186 | return Success; |
| 3187 | } |
| 3188 | |
| 3189 | rc = dixLookupClient(&killclient, stuff->id, client, DixDestroyAccess); |
| 3190 | if (rc == Success) { |
| 3191 | CloseDownClient(killclient); |
| 3192 | /* if an LBX proxy gets killed, isItTimeToYield will be set */ |
| 3193 | if (isItTimeToYield || (client == killclient)) { |
| 3194 | /* force yield and return Success, so that Dispatch() |
| 3195 | * doesn't try to touch client |
| 3196 | */ |
| 3197 | isItTimeToYield = TRUE; |
| 3198 | return Success; |
| 3199 | } |
| 3200 | return Success; |
| 3201 | } |
| 3202 | else |
| 3203 | return rc; |
| 3204 | } |
| 3205 | |
| 3206 | int |
| 3207 | ProcSetFontPath(ClientPtr client) |
| 3208 | { |
| 3209 | unsigned char *ptr; |
| 3210 | unsigned long nbytes, total; |
| 3211 | long nfonts; |
| 3212 | int n; |
| 3213 | |
| 3214 | REQUEST(xSetFontPathReq); |
| 3215 | |
| 3216 | REQUEST_AT_LEAST_SIZE(xSetFontPathReq); |
| 3217 | |
| 3218 | nbytes = (client->req_len << 2) - sizeof(xSetFontPathReq); |
| 3219 | total = nbytes; |
| 3220 | ptr = (unsigned char *) &stuff[1]; |
| 3221 | nfonts = stuff->nFonts; |
| 3222 | while (--nfonts >= 0) { |
| 3223 | if ((total == 0) || (total < (n = (*ptr + 1)))) |
| 3224 | return BadLength; |
| 3225 | total -= n; |
| 3226 | ptr += n; |
| 3227 | } |
| 3228 | if (total >= 4) |
| 3229 | return BadLength; |
| 3230 | return SetFontPath(client, stuff->nFonts, (unsigned char *) &stuff[1]); |
| 3231 | } |
| 3232 | |
| 3233 | int |
| 3234 | ProcGetFontPath(ClientPtr client) |
| 3235 | { |
| 3236 | xGetFontPathReply reply; |
| 3237 | int rc, stringLens, numpaths; |
| 3238 | unsigned char *bufferStart; |
| 3239 | |
| 3240 | /* REQUEST (xReq); */ |
| 3241 | |
| 3242 | REQUEST_SIZE_MATCH(xReq); |
| 3243 | rc = GetFontPath(client, &numpaths, &stringLens, &bufferStart); |
| 3244 | if (rc != Success) |
| 3245 | return rc; |
| 3246 | |
| 3247 | reply = (xGetFontPathReply) { |
| 3248 | .type = X_Reply, |
| 3249 | .sequenceNumber = client->sequence, |
| 3250 | .length = bytes_to_int32(stringLens + numpaths), |
| 3251 | .nPaths = numpaths |
| 3252 | }; |
| 3253 | |
| 3254 | WriteReplyToClient(client, sizeof(xGetFontPathReply), &reply); |
| 3255 | if (stringLens || numpaths) |
| 3256 | WriteToClient(client, stringLens + numpaths, bufferStart); |
| 3257 | return Success; |
| 3258 | } |
| 3259 | |
| 3260 | int |
| 3261 | ProcChangeCloseDownMode(ClientPtr client) |
| 3262 | { |
| 3263 | int rc; |
| 3264 | |
| 3265 | REQUEST(xSetCloseDownModeReq); |
| 3266 | REQUEST_SIZE_MATCH(xSetCloseDownModeReq); |
| 3267 | |
| 3268 | rc = XaceHook(XACE_CLIENT_ACCESS, client, client, DixManageAccess); |
| 3269 | if (rc != Success) |
| 3270 | return rc; |
| 3271 | |
| 3272 | if ((stuff->mode == AllTemporary) || |
| 3273 | (stuff->mode == RetainPermanent) || (stuff->mode == RetainTemporary)) { |
| 3274 | client->closeDownMode = stuff->mode; |
| 3275 | return Success; |
| 3276 | } |
| 3277 | else { |
| 3278 | client->errorValue = stuff->mode; |
| 3279 | return BadValue; |
| 3280 | } |
| 3281 | } |
| 3282 | |
| 3283 | int |
| 3284 | ProcForceScreenSaver(ClientPtr client) |
| 3285 | { |
| 3286 | int rc; |
| 3287 | |
| 3288 | REQUEST(xForceScreenSaverReq); |
| 3289 | |
| 3290 | REQUEST_SIZE_MATCH(xForceScreenSaverReq); |
| 3291 | |
| 3292 | if ((stuff->mode != ScreenSaverReset) && (stuff->mode != ScreenSaverActive)) { |
| 3293 | client->errorValue = stuff->mode; |
| 3294 | return BadValue; |
| 3295 | } |
| 3296 | rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, (int) stuff->mode); |
| 3297 | if (rc != Success) |
| 3298 | return rc; |
| 3299 | return Success; |
| 3300 | } |
| 3301 | |
| 3302 | int |
| 3303 | ProcNoOperation(ClientPtr client) |
| 3304 | { |
| 3305 | REQUEST_AT_LEAST_SIZE(xReq); |
| 3306 | |
| 3307 | /* noop -- don't do anything */ |
| 3308 | return Success; |
| 3309 | } |
| 3310 | |
| 3311 | /********************** |
| 3312 | * CloseDownClient |
| 3313 | * |
| 3314 | * Client can either mark his resources destroy or retain. If retained and |
| 3315 | * then killed again, the client is really destroyed. |
| 3316 | *********************/ |
| 3317 | |
| 3318 | char dispatchExceptionAtReset = DE_RESET; |
| 3319 | |
| 3320 | void |
| 3321 | CloseDownClient(ClientPtr client) |
| 3322 | { |
| 3323 | Bool really_close_down = client->clientGone || |
| 3324 | client->closeDownMode == DestroyAll; |
| 3325 | |
| 3326 | if (!client->clientGone) { |
| 3327 | /* ungrab server if grabbing client dies */ |
| 3328 | if (grabState != GrabNone && grabClient == client) { |
| 3329 | UngrabServer(client); |
| 3330 | } |
| 3331 | BITCLEAR(grabWaiters, client->index); |
| 3332 | DeleteClientFromAnySelections(client); |
| 3333 | ReleaseActiveGrabs(client); |
| 3334 | DeleteClientFontStuff(client); |
| 3335 | if (!really_close_down) { |
| 3336 | /* This frees resources that should never be retained |
| 3337 | * no matter what the close down mode is. Actually we |
| 3338 | * could do this unconditionally, but it's probably |
| 3339 | * better not to traverse all the client's resources |
| 3340 | * twice (once here, once a few lines down in |
| 3341 | * FreeClientResources) in the common case of |
| 3342 | * really_close_down == TRUE. |
| 3343 | */ |
| 3344 | FreeClientNeverRetainResources(client); |
| 3345 | client->clientState = ClientStateRetained; |
| 3346 | if (ClientStateCallback) { |
| 3347 | NewClientInfoRec clientinfo; |
| 3348 | |
| 3349 | clientinfo.client = client; |
| 3350 | clientinfo.prefix = (xConnSetupPrefix *) NULL; |
| 3351 | clientinfo.setup = (xConnSetup *) NULL; |
| 3352 | CallCallbacks((&ClientStateCallback), (pointer) &clientinfo); |
| 3353 | } |
| 3354 | } |
| 3355 | client->clientGone = TRUE; /* so events aren't sent to client */ |
| 3356 | if (ClientIsAsleep(client)) |
| 3357 | ClientSignal(client); |
| 3358 | ProcessWorkQueueZombies(); |
| 3359 | CloseDownConnection(client); |
| 3360 | |
| 3361 | /* If the client made it to the Running stage, nClients has |
| 3362 | * been incremented on its behalf, so we need to decrement it |
| 3363 | * now. If it hasn't gotten to Running, nClients has *not* |
| 3364 | * been incremented, so *don't* decrement it. |
| 3365 | */ |
| 3366 | if (client->clientState != ClientStateInitial) { |
| 3367 | --nClients; |
| 3368 | } |
| 3369 | } |
| 3370 | |
| 3371 | if (really_close_down) { |
| 3372 | if (client->clientState == ClientStateRunning && nClients == 0) |
| 3373 | dispatchException |= dispatchExceptionAtReset; |
| 3374 | |
| 3375 | client->clientState = ClientStateGone; |
| 3376 | if (ClientStateCallback) { |
| 3377 | NewClientInfoRec clientinfo; |
| 3378 | |
| 3379 | clientinfo.client = client; |
| 3380 | clientinfo.prefix = (xConnSetupPrefix *) NULL; |
| 3381 | clientinfo.setup = (xConnSetup *) NULL; |
| 3382 | CallCallbacks((&ClientStateCallback), (pointer) &clientinfo); |
| 3383 | } |
| 3384 | TouchListenerGone(client->clientAsMask); |
| 3385 | FreeClientResources(client); |
| 3386 | /* Disable client ID tracking. This must be done after |
| 3387 | * ClientStateCallback. */ |
| 3388 | ReleaseClientIds(client); |
| 3389 | #ifdef XSERVER_DTRACE |
| 3390 | XSERVER_CLIENT_DISCONNECT(client->index); |
| 3391 | #endif |
| 3392 | if (client->index < nextFreeClientID) |
| 3393 | nextFreeClientID = client->index; |
| 3394 | clients[client->index] = NullClient; |
| 3395 | SmartLastClient = NullClient; |
| 3396 | dixFreeObjectWithPrivates(client, PRIVATE_CLIENT); |
| 3397 | |
| 3398 | while (!clients[currentMaxClients - 1]) |
| 3399 | currentMaxClients--; |
| 3400 | } |
| 3401 | } |
| 3402 | |
| 3403 | static void |
| 3404 | KillAllClients(void) |
| 3405 | { |
| 3406 | int i; |
| 3407 | |
| 3408 | for (i = 1; i < currentMaxClients; i++) |
| 3409 | if (clients[i]) { |
| 3410 | /* Make sure Retained clients are released. */ |
| 3411 | clients[i]->closeDownMode = DestroyAll; |
| 3412 | CloseDownClient(clients[i]); |
| 3413 | } |
| 3414 | } |
| 3415 | |
| 3416 | void |
| 3417 | InitClient(ClientPtr client, int i, pointer ospriv) |
| 3418 | { |
| 3419 | client->index = i; |
| 3420 | client->clientAsMask = ((Mask) i) << CLIENTOFFSET; |
| 3421 | client->closeDownMode = i ? DestroyAll : RetainPermanent; |
| 3422 | client->requestVector = InitialVector; |
| 3423 | client->osPrivate = ospriv; |
| 3424 | QueryMinMaxKeyCodes(&client->minKC, &client->maxKC); |
| 3425 | client->smart_start_tick = SmartScheduleTime; |
| 3426 | client->smart_stop_tick = SmartScheduleTime; |
| 3427 | client->smart_check_tick = SmartScheduleTime; |
| 3428 | client->clientIds = NULL; |
| 3429 | } |
| 3430 | |
| 3431 | /************************ |
| 3432 | * int NextAvailableClient(ospriv) |
| 3433 | * |
| 3434 | * OS dependent portion can't assign client id's because of CloseDownModes. |
| 3435 | * Returns NULL if there are no free clients. |
| 3436 | *************************/ |
| 3437 | |
| 3438 | ClientPtr |
| 3439 | NextAvailableClient(pointer ospriv) |
| 3440 | { |
| 3441 | int i; |
| 3442 | ClientPtr client; |
| 3443 | xReq data; |
| 3444 | |
| 3445 | i = nextFreeClientID; |
| 3446 | if (i == MAXCLIENTS) |
| 3447 | return (ClientPtr) NULL; |
| 3448 | clients[i] = client = |
| 3449 | dixAllocateObjectWithPrivates(ClientRec, PRIVATE_CLIENT); |
| 3450 | if (!client) |
| 3451 | return (ClientPtr) NULL; |
| 3452 | InitClient(client, i, ospriv); |
| 3453 | if (!InitClientResources(client)) { |
| 3454 | dixFreeObjectWithPrivates(client, PRIVATE_CLIENT); |
| 3455 | return (ClientPtr) NULL; |
| 3456 | } |
| 3457 | data.reqType = 1; |
| 3458 | data.length = bytes_to_int32(sz_xReq + sz_xConnClientPrefix); |
| 3459 | if (!InsertFakeRequest(client, (char *) &data, sz_xReq)) { |
| 3460 | FreeClientResources(client); |
| 3461 | dixFreeObjectWithPrivates(client, PRIVATE_CLIENT); |
| 3462 | return (ClientPtr) NULL; |
| 3463 | } |
| 3464 | if (i == currentMaxClients) |
| 3465 | currentMaxClients++; |
| 3466 | while ((nextFreeClientID < MAXCLIENTS) && clients[nextFreeClientID]) |
| 3467 | nextFreeClientID++; |
| 3468 | |
| 3469 | /* Enable client ID tracking. This must be done before |
| 3470 | * ClientStateCallback. */ |
| 3471 | ReserveClientIds(client); |
| 3472 | |
| 3473 | if (ClientStateCallback) { |
| 3474 | NewClientInfoRec clientinfo; |
| 3475 | |
| 3476 | clientinfo.client = client; |
| 3477 | clientinfo.prefix = (xConnSetupPrefix *) NULL; |
| 3478 | clientinfo.setup = (xConnSetup *) NULL; |
| 3479 | CallCallbacks((&ClientStateCallback), (pointer) &clientinfo); |
| 3480 | } |
| 3481 | return client; |
| 3482 | } |
| 3483 | |
| 3484 | int |
| 3485 | ProcInitialConnection(ClientPtr client) |
| 3486 | { |
| 3487 | REQUEST(xReq); |
| 3488 | xConnClientPrefix *prefix; |
| 3489 | int whichbyte = 1; |
| 3490 | char order; |
| 3491 | |
| 3492 | prefix = (xConnClientPrefix *) ((char *)stuff + sz_xReq); |
| 3493 | order = prefix->byteOrder; |
| 3494 | if (order != 'l' && order != 'B' && order != 'r' && order != 'R') |
| 3495 | return client->noClientException = -1; |
| 3496 | if (((*(char *) &whichbyte) && (order == 'B' || order == 'R')) || |
| 3497 | (!(*(char *) &whichbyte) && (order == 'l' || order == 'r'))) { |
| 3498 | client->swapped = TRUE; |
| 3499 | SwapConnClientPrefix(prefix); |
| 3500 | } |
| 3501 | stuff->reqType = 2; |
| 3502 | stuff->length += bytes_to_int32(prefix->nbytesAuthProto) + |
| 3503 | bytes_to_int32(prefix->nbytesAuthString); |
| 3504 | if (client->swapped) { |
| 3505 | swaps(&stuff->length); |
| 3506 | } |
| 3507 | if (order == 'r' || order == 'R') { |
| 3508 | client->local = FALSE; |
| 3509 | } |
| 3510 | ResetCurrentRequest(client); |
| 3511 | return Success; |
| 3512 | } |
| 3513 | |
| 3514 | static int |
| 3515 | SendConnSetup(ClientPtr client, const char *reason) |
| 3516 | { |
| 3517 | xWindowRoot *root; |
| 3518 | int i; |
| 3519 | int numScreens; |
| 3520 | char *lConnectionInfo; |
| 3521 | xConnSetupPrefix *lconnSetupPrefix; |
| 3522 | |
| 3523 | if (reason) { |
| 3524 | xConnSetupPrefix csp; |
| 3525 | |
| 3526 | csp.success = xFalse; |
| 3527 | csp.lengthReason = strlen(reason); |
| 3528 | csp.length = bytes_to_int32(csp.lengthReason); |
| 3529 | csp.majorVersion = X_PROTOCOL; |
| 3530 | csp.minorVersion = X_PROTOCOL_REVISION; |
| 3531 | if (client->swapped) |
| 3532 | WriteSConnSetupPrefix(client, &csp); |
| 3533 | else |
| 3534 | WriteToClient(client, sz_xConnSetupPrefix, &csp); |
| 3535 | WriteToClient(client, (int) csp.lengthReason, reason); |
| 3536 | return client->noClientException = -1; |
| 3537 | } |
| 3538 | |
| 3539 | numScreens = screenInfo.numScreens; |
| 3540 | lConnectionInfo = ConnectionInfo; |
| 3541 | lconnSetupPrefix = &connSetupPrefix; |
| 3542 | |
| 3543 | /* We're about to start speaking X protocol back to the client by |
| 3544 | * sending the connection setup info. This means the authorization |
| 3545 | * step is complete, and we can count the client as an |
| 3546 | * authorized one. |
| 3547 | */ |
| 3548 | nClients++; |
| 3549 | |
| 3550 | client->requestVector = client->swapped ? SwappedProcVector : ProcVector; |
| 3551 | client->sequence = 0; |
| 3552 | ((xConnSetup *) lConnectionInfo)->ridBase = client->clientAsMask; |
| 3553 | ((xConnSetup *) lConnectionInfo)->ridMask = RESOURCE_ID_MASK; |
| 3554 | #ifdef MATCH_CLIENT_ENDIAN |
| 3555 | ((xConnSetup *) lConnectionInfo)->imageByteOrder = ClientOrder(client); |
| 3556 | ((xConnSetup *) lConnectionInfo)->bitmapBitOrder = ClientOrder(client); |
| 3557 | #endif |
| 3558 | /* fill in the "currentInputMask" */ |
| 3559 | root = (xWindowRoot *) (lConnectionInfo + connBlockScreenStart); |
| 3560 | #ifdef PANORAMIX |
| 3561 | if (noPanoramiXExtension) |
| 3562 | numScreens = screenInfo.numScreens; |
| 3563 | else |
| 3564 | numScreens = ((xConnSetup *) ConnectionInfo)->numRoots; |
| 3565 | #endif |
| 3566 | |
| 3567 | for (i = 0; i < numScreens; i++) { |
| 3568 | unsigned int j; |
| 3569 | xDepth *pDepth; |
| 3570 | WindowPtr pRoot = screenInfo.screens[i]->root; |
| 3571 | |
| 3572 | root->currentInputMask = pRoot->eventMask | wOtherEventMasks(pRoot); |
| 3573 | pDepth = (xDepth *) (root + 1); |
| 3574 | for (j = 0; j < root->nDepths; j++) { |
| 3575 | pDepth = (xDepth *) (((char *) (pDepth + 1)) + |
| 3576 | pDepth->nVisuals * sizeof(xVisualType)); |
| 3577 | } |
| 3578 | root = (xWindowRoot *) pDepth; |
| 3579 | } |
| 3580 | |
| 3581 | if (client->swapped) { |
| 3582 | WriteSConnSetupPrefix(client, lconnSetupPrefix); |
| 3583 | WriteSConnectionInfo(client, |
| 3584 | (unsigned long) (lconnSetupPrefix->length << 2), |
| 3585 | lConnectionInfo); |
| 3586 | } |
| 3587 | else { |
| 3588 | WriteToClient(client, sizeof(xConnSetupPrefix), lconnSetupPrefix); |
| 3589 | WriteToClient(client, (int) (lconnSetupPrefix->length << 2), |
| 3590 | lConnectionInfo); |
| 3591 | } |
| 3592 | client->clientState = ClientStateRunning; |
| 3593 | if (ClientStateCallback) { |
| 3594 | NewClientInfoRec clientinfo; |
| 3595 | |
| 3596 | clientinfo.client = client; |
| 3597 | clientinfo.prefix = lconnSetupPrefix; |
| 3598 | clientinfo.setup = (xConnSetup *) lConnectionInfo; |
| 3599 | CallCallbacks((&ClientStateCallback), (pointer) &clientinfo); |
| 3600 | } |
| 3601 | return Success; |
| 3602 | } |
| 3603 | |
| 3604 | int |
| 3605 | ProcEstablishConnection(ClientPtr client) |
| 3606 | { |
| 3607 | const char *reason; |
| 3608 | char *auth_proto, *auth_string; |
| 3609 | xConnClientPrefix *prefix; |
| 3610 | |
| 3611 | REQUEST(xReq); |
| 3612 | |
| 3613 | prefix = (xConnClientPrefix *) ((char *) stuff + sz_xReq); |
| 3614 | auth_proto = (char *) prefix + sz_xConnClientPrefix; |
| 3615 | auth_string = auth_proto + pad_to_int32(prefix->nbytesAuthProto); |
| 3616 | if ((prefix->majorVersion != X_PROTOCOL) || |
| 3617 | (prefix->minorVersion != X_PROTOCOL_REVISION)) |
| 3618 | reason = "Protocol version mismatch"; |
| 3619 | else |
| 3620 | reason = ClientAuthorized(client, |
| 3621 | (unsigned short) prefix->nbytesAuthProto, |
| 3622 | auth_proto, |
| 3623 | (unsigned short) prefix->nbytesAuthString, |
| 3624 | auth_string); |
| 3625 | |
| 3626 | return (SendConnSetup(client, reason)); |
| 3627 | } |
| 3628 | |
| 3629 | void |
| 3630 | SendErrorToClient(ClientPtr client, unsigned majorCode, unsigned minorCode, |
| 3631 | XID resId, int errorCode) |
| 3632 | { |
| 3633 | xError rep = { |
| 3634 | .type = X_Error, |
| 3635 | .errorCode = errorCode, |
| 3636 | .resourceID = resId, |
| 3637 | .minorCode = minorCode, |
| 3638 | .majorCode = majorCode |
| 3639 | }; |
| 3640 | |
| 3641 | WriteEventsToClient(client, 1, (xEvent *) &rep); |
| 3642 | } |
| 3643 | |
| 3644 | void |
| 3645 | MarkClientException(ClientPtr client) |
| 3646 | { |
| 3647 | client->noClientException = -1; |
| 3648 | } |
| 3649 | |
| 3650 | /* |
| 3651 | * This array encodes the answer to the question "what is the log base 2 |
| 3652 | * of the number of pixels that fit in a scanline pad unit?" |
| 3653 | * Note that ~0 is an invalid entry (mostly for the benefit of the reader). |
| 3654 | */ |
| 3655 | static int answer[6][4] = { |
| 3656 | /* pad pad pad pad */ |
| 3657 | /* 8 16 32 64 */ |
| 3658 | |
| 3659 | {3, 4, 5, 6}, /* 1 bit per pixel */ |
| 3660 | {1, 2, 3, 4}, /* 4 bits per pixel */ |
| 3661 | {0, 1, 2, 3}, /* 8 bits per pixel */ |
| 3662 | {~0, 0, 1, 2}, /* 16 bits per pixel */ |
| 3663 | {~0, ~0, 0, 1}, /* 24 bits per pixel */ |
| 3664 | {~0, ~0, 0, 1} /* 32 bits per pixel */ |
| 3665 | }; |
| 3666 | |
| 3667 | /* |
| 3668 | * This array gives the answer to the question "what is the first index for |
| 3669 | * the answer array above given the number of bits per pixel?" |
| 3670 | * Note that ~0 is an invalid entry (mostly for the benefit of the reader). |
| 3671 | */ |
| 3672 | static int indexForBitsPerPixel[33] = { |
| 3673 | ~0, 0, ~0, ~0, /* 1 bit per pixel */ |
| 3674 | 1, ~0, ~0, ~0, /* 4 bits per pixel */ |
| 3675 | 2, ~0, ~0, ~0, /* 8 bits per pixel */ |
| 3676 | ~0, ~0, ~0, ~0, |
| 3677 | 3, ~0, ~0, ~0, /* 16 bits per pixel */ |
| 3678 | ~0, ~0, ~0, ~0, |
| 3679 | 4, ~0, ~0, ~0, /* 24 bits per pixel */ |
| 3680 | ~0, ~0, ~0, ~0, |
| 3681 | 5 /* 32 bits per pixel */ |
| 3682 | }; |
| 3683 | |
| 3684 | /* |
| 3685 | * This array gives the bytesperPixel value for cases where the number |
| 3686 | * of bits per pixel is a multiple of 8 but not a power of 2. |
| 3687 | */ |
| 3688 | static int answerBytesPerPixel[33] = { |
| 3689 | ~0, 0, ~0, ~0, /* 1 bit per pixel */ |
| 3690 | 0, ~0, ~0, ~0, /* 4 bits per pixel */ |
| 3691 | 0, ~0, ~0, ~0, /* 8 bits per pixel */ |
| 3692 | ~0, ~0, ~0, ~0, |
| 3693 | 0, ~0, ~0, ~0, /* 16 bits per pixel */ |
| 3694 | ~0, ~0, ~0, ~0, |
| 3695 | 3, ~0, ~0, ~0, /* 24 bits per pixel */ |
| 3696 | ~0, ~0, ~0, ~0, |
| 3697 | 0 /* 32 bits per pixel */ |
| 3698 | }; |
| 3699 | |
| 3700 | /* |
| 3701 | * This array gives the answer to the question "what is the second index for |
| 3702 | * the answer array above given the number of bits per scanline pad unit?" |
| 3703 | * Note that ~0 is an invalid entry (mostly for the benefit of the reader). |
| 3704 | */ |
| 3705 | static int indexForScanlinePad[65] = { |
| 3706 | ~0, ~0, ~0, ~0, |
| 3707 | ~0, ~0, ~0, ~0, |
| 3708 | 0, ~0, ~0, ~0, /* 8 bits per scanline pad unit */ |
| 3709 | ~0, ~0, ~0, ~0, |
| 3710 | 1, ~0, ~0, ~0, /* 16 bits per scanline pad unit */ |
| 3711 | ~0, ~0, ~0, ~0, |
| 3712 | ~0, ~0, ~0, ~0, |
| 3713 | ~0, ~0, ~0, ~0, |
| 3714 | 2, ~0, ~0, ~0, /* 32 bits per scanline pad unit */ |
| 3715 | ~0, ~0, ~0, ~0, |
| 3716 | ~0, ~0, ~0, ~0, |
| 3717 | ~0, ~0, ~0, ~0, |
| 3718 | ~0, ~0, ~0, ~0, |
| 3719 | ~0, ~0, ~0, ~0, |
| 3720 | ~0, ~0, ~0, ~0, |
| 3721 | ~0, ~0, ~0, ~0, |
| 3722 | 3 /* 64 bits per scanline pad unit */ |
| 3723 | }; |
| 3724 | |
| 3725 | /* |
| 3726 | grow the array of screenRecs if necessary. |
| 3727 | call the device-supplied initialization procedure |
| 3728 | with its screen number, a pointer to its ScreenRec, argc, and argv. |
| 3729 | return the number of successfully installed screens. |
| 3730 | |
| 3731 | */ |
| 3732 | |
| 3733 | static int init_screen(ScreenPtr pScreen, int i, Bool gpu) |
| 3734 | { |
| 3735 | int scanlinepad, format, depth, bitsPerPixel, j, k; |
| 3736 | |
| 3737 | dixInitScreenSpecificPrivates(pScreen); |
| 3738 | |
| 3739 | if (!dixAllocatePrivates(&pScreen->devPrivates, PRIVATE_SCREEN)) { |
| 3740 | return -1; |
| 3741 | } |
| 3742 | pScreen->myNum = i; |
| 3743 | if (gpu) { |
| 3744 | pScreen->myNum += GPU_SCREEN_OFFSET; |
| 3745 | pScreen->isGPU = TRUE; |
| 3746 | } |
| 3747 | pScreen->totalPixmapSize = 0; /* computed in CreateScratchPixmapForScreen */ |
| 3748 | pScreen->ClipNotify = 0; /* for R4 ddx compatibility */ |
| 3749 | pScreen->CreateScreenResources = 0; |
| 3750 | |
| 3751 | xorg_list_init(&pScreen->pixmap_dirty_list); |
| 3752 | xorg_list_init(&pScreen->unattached_list); |
| 3753 | xorg_list_init(&pScreen->output_slave_list); |
| 3754 | xorg_list_init(&pScreen->offload_slave_list); |
| 3755 | |
| 3756 | /* |
| 3757 | * This loop gets run once for every Screen that gets added, |
| 3758 | * but thats ok. If the ddx layer initializes the formats |
| 3759 | * one at a time calling AddScreen() after each, then each |
| 3760 | * iteration will make it a little more accurate. Worst case |
| 3761 | * we do this loop N * numPixmapFormats where N is # of screens. |
| 3762 | * Anyway, this must be called after InitOutput and before the |
| 3763 | * screen init routine is called. |
| 3764 | */ |
| 3765 | for (format = 0; format < screenInfo.numPixmapFormats; format++) { |
| 3766 | depth = screenInfo.formats[format].depth; |
| 3767 | bitsPerPixel = screenInfo.formats[format].bitsPerPixel; |
| 3768 | scanlinepad = screenInfo.formats[format].scanlinePad; |
| 3769 | j = indexForBitsPerPixel[bitsPerPixel]; |
| 3770 | k = indexForScanlinePad[scanlinepad]; |
| 3771 | PixmapWidthPaddingInfo[depth].padPixelsLog2 = answer[j][k]; |
| 3772 | PixmapWidthPaddingInfo[depth].padRoundUp = |
| 3773 | (scanlinepad / bitsPerPixel) - 1; |
| 3774 | j = indexForBitsPerPixel[8]; /* bits per byte */ |
| 3775 | PixmapWidthPaddingInfo[depth].padBytesLog2 = answer[j][k]; |
| 3776 | PixmapWidthPaddingInfo[depth].bitsPerPixel = bitsPerPixel; |
| 3777 | if (answerBytesPerPixel[bitsPerPixel]) { |
| 3778 | PixmapWidthPaddingInfo[depth].notPower2 = 1; |
| 3779 | PixmapWidthPaddingInfo[depth].bytesPerPixel = |
| 3780 | answerBytesPerPixel[bitsPerPixel]; |
| 3781 | } |
| 3782 | else { |
| 3783 | PixmapWidthPaddingInfo[depth].notPower2 = 0; |
| 3784 | } |
| 3785 | } |
| 3786 | return 0; |
| 3787 | } |
| 3788 | |
| 3789 | int |
| 3790 | AddScreen(Bool (*pfnInit) (ScreenPtr /*pScreen */ , |
| 3791 | int /*argc */ , |
| 3792 | char ** /*argv */ |
| 3793 | ), int argc, char **argv) |
| 3794 | { |
| 3795 | |
| 3796 | int i; |
| 3797 | ScreenPtr pScreen; |
| 3798 | Bool ret; |
| 3799 | |
| 3800 | i = screenInfo.numScreens; |
| 3801 | if (i == MAXSCREENS) |
| 3802 | return -1; |
| 3803 | |
| 3804 | pScreen = (ScreenPtr) calloc(1, sizeof(ScreenRec)); |
| 3805 | if (!pScreen) |
| 3806 | return -1; |
| 3807 | |
| 3808 | ret = init_screen(pScreen, i, FALSE); |
| 3809 | if (ret != 0) { |
| 3810 | free(pScreen); |
| 3811 | return ret; |
| 3812 | } |
| 3813 | /* This is where screen specific stuff gets initialized. Load the |
| 3814 | screen structure, call the hardware, whatever. |
| 3815 | This is also where the default colormap should be allocated and |
| 3816 | also pixel values for blackPixel, whitePixel, and the cursor |
| 3817 | Note that InitScreen is NOT allowed to modify argc, argv, or |
| 3818 | any of the strings pointed to by argv. They may be passed to |
| 3819 | multiple screens. |
| 3820 | */ |
| 3821 | screenInfo.screens[i] = pScreen; |
| 3822 | screenInfo.numScreens++; |
| 3823 | if (!(*pfnInit) (pScreen, argc, argv)) { |
| 3824 | dixFreeScreenSpecificPrivates(pScreen); |
| 3825 | dixFreePrivates(pScreen->devPrivates, PRIVATE_SCREEN); |
| 3826 | free(pScreen); |
| 3827 | screenInfo.numScreens--; |
| 3828 | return -1; |
| 3829 | } |
| 3830 | |
| 3831 | update_desktop_dimensions(); |
| 3832 | |
| 3833 | dixRegisterScreenPrivateKey(&cursorScreenDevPriv, pScreen, PRIVATE_CURSOR, |
| 3834 | 0); |
| 3835 | |
| 3836 | return i; |
| 3837 | } |
| 3838 | |
| 3839 | int |
| 3840 | AddGPUScreen(Bool (*pfnInit) (ScreenPtr /*pScreen */ , |
| 3841 | int /*argc */ , |
| 3842 | char ** /*argv */ |
| 3843 | ), |
| 3844 | int argc, char **argv) |
| 3845 | { |
| 3846 | int i; |
| 3847 | ScreenPtr pScreen; |
| 3848 | Bool ret; |
| 3849 | |
| 3850 | i = screenInfo.numGPUScreens; |
| 3851 | if (i == MAXGPUSCREENS) |
| 3852 | return -1; |
| 3853 | |
| 3854 | pScreen = (ScreenPtr) calloc(1, sizeof(ScreenRec)); |
| 3855 | if (!pScreen) |
| 3856 | return -1; |
| 3857 | |
| 3858 | ret = init_screen(pScreen, i, TRUE); |
| 3859 | if (ret != 0) { |
| 3860 | free(pScreen); |
| 3861 | return ret; |
| 3862 | } |
| 3863 | |
| 3864 | /* This is where screen specific stuff gets initialized. Load the |
| 3865 | screen structure, call the hardware, whatever. |
| 3866 | This is also where the default colormap should be allocated and |
| 3867 | also pixel values for blackPixel, whitePixel, and the cursor |
| 3868 | Note that InitScreen is NOT allowed to modify argc, argv, or |
| 3869 | any of the strings pointed to by argv. They may be passed to |
| 3870 | multiple screens. |
| 3871 | */ |
| 3872 | screenInfo.gpuscreens[i] = pScreen; |
| 3873 | screenInfo.numGPUScreens++; |
| 3874 | if (!(*pfnInit) (pScreen, argc, argv)) { |
| 3875 | dixFreePrivates(pScreen->devPrivates, PRIVATE_SCREEN); |
| 3876 | free(pScreen); |
| 3877 | screenInfo.numGPUScreens--; |
| 3878 | return -1; |
| 3879 | } |
| 3880 | |
| 3881 | update_desktop_dimensions(); |
| 3882 | |
| 3883 | return i; |
| 3884 | } |
| 3885 | |
| 3886 | void |
| 3887 | RemoveGPUScreen(ScreenPtr pScreen) |
| 3888 | { |
| 3889 | int idx, j; |
| 3890 | if (!pScreen->isGPU) |
| 3891 | return; |
| 3892 | |
| 3893 | idx = pScreen->myNum - GPU_SCREEN_OFFSET; |
| 3894 | for (j = idx; j < screenInfo.numGPUScreens - 1; j++) { |
| 3895 | screenInfo.gpuscreens[j] = screenInfo.gpuscreens[j + 1]; |
| 3896 | screenInfo.gpuscreens[j]->myNum = j + GPU_SCREEN_OFFSET; |
| 3897 | } |
| 3898 | screenInfo.numGPUScreens--; |
| 3899 | |
| 3900 | /* this gets freed later in the resource list, but without |
| 3901 | * the screen existing it causes crashes - so remove it here */ |
| 3902 | if (pScreen->defColormap) |
| 3903 | FreeResource(pScreen->defColormap, RT_COLORMAP); |
| 3904 | free(pScreen); |
| 3905 | |
| 3906 | } |
| 3907 | |
| 3908 | void |
| 3909 | AttachUnboundGPU(ScreenPtr pScreen, ScreenPtr new) |
| 3910 | { |
| 3911 | assert(new->isGPU); |
| 3912 | assert(!new->current_master); |
| 3913 | xorg_list_add(&new->unattached_head, &pScreen->unattached_list); |
| 3914 | new->current_master = pScreen; |
| 3915 | } |
| 3916 | |
| 3917 | void |
| 3918 | DetachUnboundGPU(ScreenPtr slave) |
| 3919 | { |
| 3920 | assert(slave->isGPU); |
| 3921 | xorg_list_del(&slave->unattached_head); |
| 3922 | slave->current_master = NULL; |
| 3923 | } |
| 3924 | |
| 3925 | void |
| 3926 | AttachOutputGPU(ScreenPtr pScreen, ScreenPtr new) |
| 3927 | { |
| 3928 | assert(new->isGPU); |
| 3929 | xorg_list_add(&new->output_head, &pScreen->output_slave_list); |
| 3930 | new->current_master = pScreen; |
| 3931 | } |
| 3932 | |
| 3933 | void |
| 3934 | DetachOutputGPU(ScreenPtr slave) |
| 3935 | { |
| 3936 | assert(slave->isGPU); |
| 3937 | xorg_list_del(&slave->output_head); |
| 3938 | slave->current_master = NULL; |
| 3939 | } |
| 3940 | |
| 3941 | void |
| 3942 | AttachOffloadGPU(ScreenPtr pScreen, ScreenPtr new) |
| 3943 | { |
| 3944 | assert(new->isGPU); |
| 3945 | xorg_list_add(&new->offload_head, &pScreen->offload_slave_list); |
| 3946 | new->current_master = pScreen; |
| 3947 | } |
| 3948 | |
| 3949 | void |
| 3950 | DetachOffloadGPU(ScreenPtr slave) |
| 3951 | { |
| 3952 | assert(slave->isGPU); |
| 3953 | xorg_list_del(&slave->offload_head); |
| 3954 | slave->current_master = NULL; |
| 3955 | } |
| 3956 | |