| 1 | /*********************************************************** |
| 2 | Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts, |
| 3 | and the Massachusetts Institute of Technology, Cambridge, Massachusetts. |
| 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Digital or MIT not be |
| 12 | used in advertising or publicity pertaining to distribution of the |
| 13 | software without specific, written prior permission. |
| 14 | |
| 15 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 16 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 17 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 18 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 19 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 20 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 21 | SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
| 25 | /* |
| 26 | ** File: |
| 27 | ** |
| 28 | ** xvmain.c --- Xv server extension main device independent module. |
| 29 | ** |
| 30 | ** Author: |
| 31 | ** |
| 32 | ** David Carver (Digital Workstation Engineering/Project Athena) |
| 33 | ** |
| 34 | ** Revisions: |
| 35 | ** |
| 36 | ** 04.09.91 Carver |
| 37 | ** - change: stop video always generates an event even when video |
| 38 | ** wasn't active |
| 39 | ** |
| 40 | ** 29.08.91 Carver |
| 41 | ** - change: unrealizing windows no longer preempts video |
| 42 | ** |
| 43 | ** 11.06.91 Carver |
| 44 | ** - changed SetPortControl to SetPortAttribute |
| 45 | ** - changed GetPortControl to GetPortAttribute |
| 46 | ** - changed QueryBestSize |
| 47 | ** |
| 48 | ** 28.05.91 Carver |
| 49 | ** - fixed Put and Get requests to not preempt operations to same drawable |
| 50 | ** |
| 51 | ** 15.05.91 Carver |
| 52 | ** - version 2.0 upgrade |
| 53 | ** |
| 54 | ** 19.03.91 Carver |
| 55 | ** - fixed Put and Get requests to honor grabbed ports. |
| 56 | ** - fixed Video requests to update di structure with new drawable, and |
| 57 | ** client after calling ddx. |
| 58 | ** |
| 59 | ** 24.01.91 Carver |
| 60 | ** - version 1.4 upgrade |
| 61 | ** |
| 62 | ** Notes: |
| 63 | ** |
| 64 | ** Port structures reference client structures in a two different |
| 65 | ** ways: when grabs, or video is active. Each reference is encoded |
| 66 | ** as fake client resources and thus when the client is goes away so |
| 67 | ** does the reference (it is zeroed). No other action is taken, so |
| 68 | ** video doesn't necessarily stop. It probably will as a result of |
| 69 | ** other resources going away, but if a client starts video using |
| 70 | ** none of its own resources, then the video will continue to play |
| 71 | ** after the client disappears. |
| 72 | ** |
| 73 | ** |
| 74 | */ |
| 75 | |
| 76 | #ifdef HAVE_DIX_CONFIG_H |
| 77 | #include <dix-config.h> |
| 78 | #endif |
| 79 | |
| 80 | #include <string.h> |
| 81 | |
| 82 | #include <X11/X.h> |
| 83 | #include <X11/Xproto.h> |
| 84 | #include "misc.h" |
| 85 | #include "os.h" |
| 86 | #include "scrnintstr.h" |
| 87 | #include "windowstr.h" |
| 88 | #include "pixmapstr.h" |
| 89 | #include "gc.h" |
| 90 | #include "extnsionst.h" |
| 91 | #include "extinit.h" |
| 92 | #include "dixstruct.h" |
| 93 | #include "resource.h" |
| 94 | #include "opaque.h" |
| 95 | #include "input.h" |
| 96 | |
| 97 | #define GLOBAL |
| 98 | |
| 99 | #include <X11/extensions/Xv.h> |
| 100 | #include <X11/extensions/Xvproto.h> |
| 101 | #include "xvdix.h" |
| 102 | |
| 103 | #ifdef PANORAMIX |
| 104 | #include "panoramiX.h" |
| 105 | #include "panoramiXsrv.h" |
| 106 | #endif |
| 107 | #include "xvdisp.h" |
| 108 | |
| 109 | static DevPrivateKeyRec XvScreenKeyRec; |
| 110 | |
| 111 | #define XvScreenKey (&XvScreenKeyRec) |
| 112 | unsigned long XvExtensionGeneration = 0; |
| 113 | unsigned long XvScreenGeneration = 0; |
| 114 | unsigned long XvResourceGeneration = 0; |
| 115 | |
| 116 | int XvReqCode; |
| 117 | int XvEventBase; |
| 118 | int XvErrorBase; |
| 119 | |
| 120 | RESTYPE XvRTPort; |
| 121 | RESTYPE XvRTEncoding; |
| 122 | RESTYPE XvRTGrab; |
| 123 | RESTYPE XvRTVideoNotify; |
| 124 | RESTYPE XvRTVideoNotifyList; |
| 125 | RESTYPE XvRTPortNotify; |
| 126 | |
| 127 | /* EXTERNAL */ |
| 128 | |
| 129 | static void WriteSwappedVideoNotifyEvent(xvEvent *, xvEvent *); |
| 130 | static void WriteSwappedPortNotifyEvent(xvEvent *, xvEvent *); |
| 131 | static Bool CreateResourceTypes(void); |
| 132 | |
| 133 | static Bool XvCloseScreen(ScreenPtr); |
| 134 | static Bool XvDestroyPixmap(PixmapPtr); |
| 135 | static Bool XvDestroyWindow(WindowPtr); |
| 136 | static void XvResetProc(ExtensionEntry *); |
| 137 | static int XvdiDestroyGrab(pointer, XID); |
| 138 | static int XvdiDestroyEncoding(pointer, XID); |
| 139 | static int XvdiDestroyVideoNotify(pointer, XID); |
| 140 | static int XvdiDestroyPortNotify(pointer, XID); |
| 141 | static int XvdiDestroyVideoNotifyList(pointer, XID); |
| 142 | static int XvdiDestroyPort(pointer, XID); |
| 143 | static int XvdiSendVideoNotify(XvPortPtr, DrawablePtr, int); |
| 144 | |
| 145 | /* |
| 146 | ** XvExtensionInit |
| 147 | ** |
| 148 | ** |
| 149 | */ |
| 150 | |
| 151 | void |
| 152 | XvExtensionInit(void) |
| 153 | { |
| 154 | ExtensionEntry *extEntry; |
| 155 | |
| 156 | if (!dixRegisterPrivateKey(&XvScreenKeyRec, PRIVATE_SCREEN, 0)) |
| 157 | return; |
| 158 | |
| 159 | /* Look to see if any screens were initialized; if not then |
| 160 | init global variables so the extension can function */ |
| 161 | if (XvScreenGeneration != serverGeneration) { |
| 162 | if (!CreateResourceTypes()) { |
| 163 | ErrorF("XvExtensionInit: Unable to allocate resource types\n"); |
| 164 | return; |
| 165 | } |
| 166 | #ifdef PANORAMIX |
| 167 | XineramaRegisterConnectionBlockCallback(XineramifyXv); |
| 168 | #endif |
| 169 | XvScreenGeneration = serverGeneration; |
| 170 | } |
| 171 | |
| 172 | if (XvExtensionGeneration != serverGeneration) { |
| 173 | XvExtensionGeneration = serverGeneration; |
| 174 | |
| 175 | extEntry = AddExtension(XvName, XvNumEvents, XvNumErrors, |
| 176 | ProcXvDispatch, SProcXvDispatch, |
| 177 | XvResetProc, StandardMinorOpcode); |
| 178 | if (!extEntry) { |
| 179 | FatalError("XvExtensionInit: AddExtensions failed\n"); |
| 180 | } |
| 181 | |
| 182 | XvReqCode = extEntry->base; |
| 183 | XvEventBase = extEntry->eventBase; |
| 184 | XvErrorBase = extEntry->errorBase; |
| 185 | |
| 186 | EventSwapVector[XvEventBase + XvVideoNotify] = |
| 187 | (EventSwapPtr) WriteSwappedVideoNotifyEvent; |
| 188 | EventSwapVector[XvEventBase + XvPortNotify] = |
| 189 | (EventSwapPtr) WriteSwappedPortNotifyEvent; |
| 190 | |
| 191 | SetResourceTypeErrorValue(XvRTPort, _XvBadPort); |
| 192 | (void) MakeAtom(XvName, strlen(XvName), xTrue); |
| 193 | |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | static Bool |
| 198 | CreateResourceTypes(void) |
| 199 | { |
| 200 | |
| 201 | if (XvResourceGeneration == serverGeneration) |
| 202 | return TRUE; |
| 203 | |
| 204 | XvResourceGeneration = serverGeneration; |
| 205 | |
| 206 | if (!(XvRTPort = CreateNewResourceType(XvdiDestroyPort, "XvRTPort"))) { |
| 207 | ErrorF("CreateResourceTypes: failed to allocate port resource.\n"); |
| 208 | return FALSE; |
| 209 | } |
| 210 | |
| 211 | if (!(XvRTGrab = CreateNewResourceType(XvdiDestroyGrab, "XvRTGrab"))) { |
| 212 | ErrorF("CreateResourceTypes: failed to allocate grab resource.\n"); |
| 213 | return FALSE; |
| 214 | } |
| 215 | |
| 216 | if (!(XvRTEncoding = CreateNewResourceType(XvdiDestroyEncoding, |
| 217 | "XvRTEncoding"))) { |
| 218 | ErrorF("CreateResourceTypes: failed to allocate encoding resource.\n"); |
| 219 | return FALSE; |
| 220 | } |
| 221 | |
| 222 | if (!(XvRTVideoNotify = CreateNewResourceType(XvdiDestroyVideoNotify, |
| 223 | "XvRTVideoNotify"))) { |
| 224 | ErrorF |
| 225 | ("CreateResourceTypes: failed to allocate video notify resource.\n"); |
| 226 | return FALSE; |
| 227 | } |
| 228 | |
| 229 | if (! |
| 230 | (XvRTVideoNotifyList = |
| 231 | CreateNewResourceType(XvdiDestroyVideoNotifyList, |
| 232 | "XvRTVideoNotifyList"))) { |
| 233 | ErrorF |
| 234 | ("CreateResourceTypes: failed to allocate video notify list resource.\n"); |
| 235 | return FALSE; |
| 236 | } |
| 237 | |
| 238 | if (!(XvRTPortNotify = CreateNewResourceType(XvdiDestroyPortNotify, |
| 239 | "XvRTPortNotify"))) { |
| 240 | ErrorF |
| 241 | ("CreateResourceTypes: failed to allocate port notify resource.\n"); |
| 242 | return FALSE; |
| 243 | } |
| 244 | |
| 245 | return TRUE; |
| 246 | |
| 247 | } |
| 248 | |
| 249 | int |
| 250 | XvScreenInit(ScreenPtr pScreen) |
| 251 | { |
| 252 | XvScreenPtr pxvs; |
| 253 | |
| 254 | if (XvScreenGeneration != serverGeneration) { |
| 255 | if (!CreateResourceTypes()) { |
| 256 | ErrorF("XvScreenInit: Unable to allocate resource types\n"); |
| 257 | return BadAlloc; |
| 258 | } |
| 259 | #ifdef PANORAMIX |
| 260 | XineramaRegisterConnectionBlockCallback(XineramifyXv); |
| 261 | #endif |
| 262 | XvScreenGeneration = serverGeneration; |
| 263 | } |
| 264 | |
| 265 | if (!dixRegisterPrivateKey(&XvScreenKeyRec, PRIVATE_SCREEN, 0)) |
| 266 | return BadAlloc; |
| 267 | |
| 268 | if (dixLookupPrivate(&pScreen->devPrivates, XvScreenKey)) { |
| 269 | ErrorF("XvScreenInit: screen devPrivates ptr non-NULL before init\n"); |
| 270 | } |
| 271 | |
| 272 | /* ALLOCATE SCREEN PRIVATE RECORD */ |
| 273 | |
| 274 | pxvs = malloc(sizeof(XvScreenRec)); |
| 275 | if (!pxvs) { |
| 276 | ErrorF("XvScreenInit: Unable to allocate screen private structure\n"); |
| 277 | return BadAlloc; |
| 278 | } |
| 279 | |
| 280 | dixSetPrivate(&pScreen->devPrivates, XvScreenKey, pxvs); |
| 281 | |
| 282 | pxvs->DestroyPixmap = pScreen->DestroyPixmap; |
| 283 | pxvs->DestroyWindow = pScreen->DestroyWindow; |
| 284 | pxvs->CloseScreen = pScreen->CloseScreen; |
| 285 | |
| 286 | pScreen->DestroyPixmap = XvDestroyPixmap; |
| 287 | pScreen->DestroyWindow = XvDestroyWindow; |
| 288 | pScreen->CloseScreen = XvCloseScreen; |
| 289 | |
| 290 | return Success; |
| 291 | } |
| 292 | |
| 293 | static Bool |
| 294 | XvCloseScreen(ScreenPtr pScreen) |
| 295 | { |
| 296 | |
| 297 | XvScreenPtr pxvs; |
| 298 | |
| 299 | pxvs = (XvScreenPtr) dixLookupPrivate(&pScreen->devPrivates, XvScreenKey); |
| 300 | |
| 301 | pScreen->DestroyPixmap = pxvs->DestroyPixmap; |
| 302 | pScreen->DestroyWindow = pxvs->DestroyWindow; |
| 303 | pScreen->CloseScreen = pxvs->CloseScreen; |
| 304 | |
| 305 | (*pxvs->ddCloseScreen) (pScreen); |
| 306 | |
| 307 | free(pxvs); |
| 308 | |
| 309 | dixSetPrivate(&pScreen->devPrivates, XvScreenKey, NULL); |
| 310 | |
| 311 | return (*pScreen->CloseScreen) (pScreen); |
| 312 | } |
| 313 | |
| 314 | static void |
| 315 | XvResetProc(ExtensionEntry * extEntry) |
| 316 | { |
| 317 | XvResetProcVector(); |
| 318 | } |
| 319 | |
| 320 | DevPrivateKey |
| 321 | XvGetScreenKey(void) |
| 322 | { |
| 323 | return XvScreenKey; |
| 324 | } |
| 325 | |
| 326 | unsigned long |
| 327 | XvGetRTPort(void) |
| 328 | { |
| 329 | return XvRTPort; |
| 330 | } |
| 331 | |
| 332 | static Bool |
| 333 | XvDestroyPixmap(PixmapPtr pPix) |
| 334 | { |
| 335 | Bool status; |
| 336 | ScreenPtr pScreen; |
| 337 | XvScreenPtr pxvs; |
| 338 | XvAdaptorPtr pa; |
| 339 | int na; |
| 340 | XvPortPtr pp; |
| 341 | int np; |
| 342 | |
| 343 | pScreen = pPix->drawable.pScreen; |
| 344 | |
| 345 | SCREEN_PROLOGUE(pScreen, DestroyPixmap); |
| 346 | |
| 347 | pxvs = (XvScreenPtr) dixLookupPrivate(&pScreen->devPrivates, XvScreenKey); |
| 348 | |
| 349 | /* CHECK TO SEE IF THIS PORT IS IN USE */ |
| 350 | |
| 351 | pa = pxvs->pAdaptors; |
| 352 | na = pxvs->nAdaptors; |
| 353 | while (na--) { |
| 354 | np = pa->nPorts; |
| 355 | pp = pa->pPorts; |
| 356 | |
| 357 | while (np--) { |
| 358 | if (pp->pDraw == (DrawablePtr) pPix) { |
| 359 | XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted); |
| 360 | |
| 361 | (void) (*pp->pAdaptor->ddStopVideo) (NULL, pp, pp->pDraw); |
| 362 | |
| 363 | pp->pDraw = NULL; |
| 364 | pp->client = NULL; |
| 365 | pp->time = currentTime; |
| 366 | } |
| 367 | pp++; |
| 368 | } |
| 369 | pa++; |
| 370 | } |
| 371 | |
| 372 | status = (*pScreen->DestroyPixmap) (pPix); |
| 373 | |
| 374 | SCREEN_EPILOGUE(pScreen, DestroyPixmap, XvDestroyPixmap); |
| 375 | |
| 376 | return status; |
| 377 | |
| 378 | } |
| 379 | |
| 380 | static Bool |
| 381 | XvDestroyWindow(WindowPtr pWin) |
| 382 | { |
| 383 | Bool status; |
| 384 | ScreenPtr pScreen; |
| 385 | XvScreenPtr pxvs; |
| 386 | XvAdaptorPtr pa; |
| 387 | int na; |
| 388 | XvPortPtr pp; |
| 389 | int np; |
| 390 | |
| 391 | pScreen = pWin->drawable.pScreen; |
| 392 | |
| 393 | SCREEN_PROLOGUE(pScreen, DestroyWindow); |
| 394 | |
| 395 | pxvs = (XvScreenPtr) dixLookupPrivate(&pScreen->devPrivates, XvScreenKey); |
| 396 | |
| 397 | /* CHECK TO SEE IF THIS PORT IS IN USE */ |
| 398 | |
| 399 | pa = pxvs->pAdaptors; |
| 400 | na = pxvs->nAdaptors; |
| 401 | while (na--) { |
| 402 | np = pa->nPorts; |
| 403 | pp = pa->pPorts; |
| 404 | |
| 405 | while (np--) { |
| 406 | if (pp->pDraw == (DrawablePtr) pWin) { |
| 407 | XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted); |
| 408 | |
| 409 | (void) (*pp->pAdaptor->ddStopVideo) (NULL, pp, pp->pDraw); |
| 410 | |
| 411 | pp->pDraw = NULL; |
| 412 | pp->client = NULL; |
| 413 | pp->time = currentTime; |
| 414 | } |
| 415 | pp++; |
| 416 | } |
| 417 | pa++; |
| 418 | } |
| 419 | |
| 420 | status = (*pScreen->DestroyWindow) (pWin); |
| 421 | |
| 422 | SCREEN_EPILOGUE(pScreen, DestroyWindow, XvDestroyWindow); |
| 423 | |
| 424 | return status; |
| 425 | |
| 426 | } |
| 427 | |
| 428 | /* The XvdiVideoStopped procedure is a hook for the device dependent layer. |
| 429 | It provides a way for the dd layer to inform the di layer that video has |
| 430 | stopped in a port for reasons that the di layer had no control over; note |
| 431 | that it doesn't call back into the dd layer */ |
| 432 | |
| 433 | int |
| 434 | XvdiVideoStopped(XvPortPtr pPort, int reason) |
| 435 | { |
| 436 | |
| 437 | /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */ |
| 438 | |
| 439 | if (!pPort->pDraw) |
| 440 | return Success; |
| 441 | |
| 442 | XvdiSendVideoNotify(pPort, pPort->pDraw, reason); |
| 443 | |
| 444 | pPort->pDraw = NULL; |
| 445 | pPort->client = NULL; |
| 446 | pPort->time = currentTime; |
| 447 | |
| 448 | return Success; |
| 449 | |
| 450 | } |
| 451 | |
| 452 | static int |
| 453 | XvdiDestroyPort(pointer pPort, XID id) |
| 454 | { |
| 455 | return (*((XvPortPtr) pPort)->pAdaptor->ddFreePort) (pPort); |
| 456 | } |
| 457 | |
| 458 | static int |
| 459 | XvdiDestroyGrab(pointer pGrab, XID id) |
| 460 | { |
| 461 | ((XvGrabPtr) pGrab)->client = NULL; |
| 462 | return Success; |
| 463 | } |
| 464 | |
| 465 | static int |
| 466 | XvdiDestroyVideoNotify(pointer pn, XID id) |
| 467 | { |
| 468 | /* JUST CLEAR OUT THE client POINTER FIELD */ |
| 469 | |
| 470 | ((XvVideoNotifyPtr) pn)->client = NULL; |
| 471 | return Success; |
| 472 | } |
| 473 | |
| 474 | static int |
| 475 | XvdiDestroyPortNotify(pointer pn, XID id) |
| 476 | { |
| 477 | /* JUST CLEAR OUT THE client POINTER FIELD */ |
| 478 | |
| 479 | ((XvPortNotifyPtr) pn)->client = NULL; |
| 480 | return Success; |
| 481 | } |
| 482 | |
| 483 | static int |
| 484 | XvdiDestroyVideoNotifyList(pointer pn, XID id) |
| 485 | { |
| 486 | XvVideoNotifyPtr npn, cpn; |
| 487 | |
| 488 | /* ACTUALLY DESTROY THE NOTITY LIST */ |
| 489 | |
| 490 | cpn = (XvVideoNotifyPtr) pn; |
| 491 | |
| 492 | while (cpn) { |
| 493 | npn = cpn->next; |
| 494 | if (cpn->client) |
| 495 | FreeResource(cpn->id, XvRTVideoNotify); |
| 496 | free(cpn); |
| 497 | cpn = npn; |
| 498 | } |
| 499 | return Success; |
| 500 | } |
| 501 | |
| 502 | static int |
| 503 | XvdiDestroyEncoding(pointer value, XID id) |
| 504 | { |
| 505 | return Success; |
| 506 | } |
| 507 | |
| 508 | static int |
| 509 | XvdiSendVideoNotify(XvPortPtr pPort, DrawablePtr pDraw, int reason) |
| 510 | { |
| 511 | XvVideoNotifyPtr pn; |
| 512 | |
| 513 | dixLookupResourceByType((pointer *) &pn, pDraw->id, XvRTVideoNotifyList, |
| 514 | serverClient, DixReadAccess); |
| 515 | |
| 516 | while (pn) { |
| 517 | xvEvent event = { |
| 518 | .u.videoNotify.reason = reason, |
| 519 | .u.videoNotify.time = currentTime.milliseconds, |
| 520 | .u.videoNotify.drawable = pDraw->id, |
| 521 | .u.videoNotify.port = pPort->id |
| 522 | }; |
| 523 | event.u.u.type = XvEventBase + XvVideoNotify; |
| 524 | WriteEventsToClient(pn->client, 1, (xEventPtr) &event); |
| 525 | pn = pn->next; |
| 526 | } |
| 527 | |
| 528 | return Success; |
| 529 | |
| 530 | } |
| 531 | |
| 532 | int |
| 533 | XvdiSendPortNotify(XvPortPtr pPort, Atom attribute, INT32 value) |
| 534 | { |
| 535 | XvPortNotifyPtr pn; |
| 536 | |
| 537 | pn = pPort->pNotify; |
| 538 | |
| 539 | while (pn) { |
| 540 | xvEvent event = { |
| 541 | .u.portNotify.time = currentTime.milliseconds, |
| 542 | .u.portNotify.port = pPort->id, |
| 543 | .u.portNotify.attribute = attribute, |
| 544 | .u.portNotify.value = value |
| 545 | }; |
| 546 | event.u.u.type = XvEventBase + XvPortNotify; |
| 547 | WriteEventsToClient(pn->client, 1, (xEventPtr) &event); |
| 548 | pn = pn->next; |
| 549 | } |
| 550 | |
| 551 | return Success; |
| 552 | |
| 553 | } |
| 554 | |
| 555 | #define CHECK_SIZE(dw, dh, sw, sh) { \ |
| 556 | if(!dw || !dh || !sw || !sh) return Success; \ |
| 557 | /* The region code will break these if they are too large */ \ |
| 558 | if((dw > 32767) || (dh > 32767) || (sw > 32767) || (sh > 32767)) \ |
| 559 | return BadValue; \ |
| 560 | } |
| 561 | |
| 562 | int |
| 563 | XvdiPutVideo(ClientPtr client, |
| 564 | DrawablePtr pDraw, |
| 565 | XvPortPtr pPort, |
| 566 | GCPtr pGC, |
| 567 | INT16 vid_x, INT16 vid_y, |
| 568 | CARD16 vid_w, CARD16 vid_h, |
| 569 | INT16 drw_x, INT16 drw_y, CARD16 drw_w, CARD16 drw_h) |
| 570 | { |
| 571 | DrawablePtr pOldDraw; |
| 572 | |
| 573 | CHECK_SIZE(drw_w, drw_h, vid_w, vid_h); |
| 574 | |
| 575 | /* UPDATE TIME VARIABLES FOR USE IN EVENTS */ |
| 576 | |
| 577 | UpdateCurrentTime(); |
| 578 | |
| 579 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 580 | INFORM CLIENT OF ITS FAILURE */ |
| 581 | |
| 582 | if (pPort->grab.client && (pPort->grab.client != client)) { |
| 583 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 584 | return Success; |
| 585 | } |
| 586 | |
| 587 | /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED |
| 588 | EVENTS TO ANY CLIENTS WHO WANT THEM */ |
| 589 | |
| 590 | pOldDraw = pPort->pDraw; |
| 591 | if ((pOldDraw) && (pOldDraw != pDraw)) { |
| 592 | XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted); |
| 593 | } |
| 594 | |
| 595 | (void) (*pPort->pAdaptor->ddPutVideo) (client, pDraw, pPort, pGC, |
| 596 | vid_x, vid_y, vid_w, vid_h, |
| 597 | drw_x, drw_y, drw_w, drw_h); |
| 598 | |
| 599 | if ((pPort->pDraw) && (pOldDraw != pDraw)) { |
| 600 | pPort->client = client; |
| 601 | XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted); |
| 602 | } |
| 603 | |
| 604 | pPort->time = currentTime; |
| 605 | |
| 606 | return Success; |
| 607 | |
| 608 | } |
| 609 | |
| 610 | int |
| 611 | XvdiPutStill(ClientPtr client, |
| 612 | DrawablePtr pDraw, |
| 613 | XvPortPtr pPort, |
| 614 | GCPtr pGC, |
| 615 | INT16 vid_x, INT16 vid_y, |
| 616 | CARD16 vid_w, CARD16 vid_h, |
| 617 | INT16 drw_x, INT16 drw_y, CARD16 drw_w, CARD16 drw_h) |
| 618 | { |
| 619 | int status; |
| 620 | |
| 621 | CHECK_SIZE(drw_w, drw_h, vid_w, vid_h); |
| 622 | |
| 623 | /* UPDATE TIME VARIABLES FOR USE IN EVENTS */ |
| 624 | |
| 625 | UpdateCurrentTime(); |
| 626 | |
| 627 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 628 | INFORM CLIENT OF ITS FAILURE */ |
| 629 | |
| 630 | if (pPort->grab.client && (pPort->grab.client != client)) { |
| 631 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 632 | return Success; |
| 633 | } |
| 634 | |
| 635 | pPort->time = currentTime; |
| 636 | |
| 637 | status = (*pPort->pAdaptor->ddPutStill) (client, pDraw, pPort, pGC, |
| 638 | vid_x, vid_y, vid_w, vid_h, |
| 639 | drw_x, drw_y, drw_w, drw_h); |
| 640 | |
| 641 | return status; |
| 642 | |
| 643 | } |
| 644 | |
| 645 | int |
| 646 | XvdiPutImage(ClientPtr client, |
| 647 | DrawablePtr pDraw, |
| 648 | XvPortPtr pPort, |
| 649 | GCPtr pGC, |
| 650 | INT16 src_x, INT16 src_y, |
| 651 | CARD16 src_w, CARD16 src_h, |
| 652 | INT16 drw_x, INT16 drw_y, |
| 653 | CARD16 drw_w, CARD16 drw_h, |
| 654 | XvImagePtr image, |
| 655 | unsigned char *data, Bool sync, CARD16 width, CARD16 height) |
| 656 | { |
| 657 | CHECK_SIZE(drw_w, drw_h, src_w, src_h); |
| 658 | |
| 659 | /* UPDATE TIME VARIABLES FOR USE IN EVENTS */ |
| 660 | |
| 661 | UpdateCurrentTime(); |
| 662 | |
| 663 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 664 | INFORM CLIENT OF ITS FAILURE */ |
| 665 | |
| 666 | if (pPort->grab.client && (pPort->grab.client != client)) { |
| 667 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 668 | return Success; |
| 669 | } |
| 670 | |
| 671 | pPort->time = currentTime; |
| 672 | |
| 673 | return (*pPort->pAdaptor->ddPutImage) (client, pDraw, pPort, pGC, |
| 674 | src_x, src_y, src_w, src_h, |
| 675 | drw_x, drw_y, drw_w, drw_h, |
| 676 | image, data, sync, width, height); |
| 677 | } |
| 678 | |
| 679 | int |
| 680 | XvdiGetVideo(ClientPtr client, |
| 681 | DrawablePtr pDraw, |
| 682 | XvPortPtr pPort, |
| 683 | GCPtr pGC, |
| 684 | INT16 vid_x, INT16 vid_y, |
| 685 | CARD16 vid_w, CARD16 vid_h, |
| 686 | INT16 drw_x, INT16 drw_y, CARD16 drw_w, CARD16 drw_h) |
| 687 | { |
| 688 | DrawablePtr pOldDraw; |
| 689 | |
| 690 | CHECK_SIZE(drw_w, drw_h, vid_w, vid_h); |
| 691 | |
| 692 | /* UPDATE TIME VARIABLES FOR USE IN EVENTS */ |
| 693 | |
| 694 | UpdateCurrentTime(); |
| 695 | |
| 696 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 697 | INFORM CLIENT OF ITS FAILURE */ |
| 698 | |
| 699 | if (pPort->grab.client && (pPort->grab.client != client)) { |
| 700 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 701 | return Success; |
| 702 | } |
| 703 | |
| 704 | /* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED |
| 705 | EVENTS TO ANY CLIENTS WHO WANT THEM */ |
| 706 | |
| 707 | pOldDraw = pPort->pDraw; |
| 708 | if ((pOldDraw) && (pOldDraw != pDraw)) { |
| 709 | XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted); |
| 710 | } |
| 711 | |
| 712 | (void) (*pPort->pAdaptor->ddGetVideo) (client, pDraw, pPort, pGC, |
| 713 | vid_x, vid_y, vid_w, vid_h, |
| 714 | drw_x, drw_y, drw_w, drw_h); |
| 715 | |
| 716 | if ((pPort->pDraw) && (pOldDraw != pDraw)) { |
| 717 | pPort->client = client; |
| 718 | XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted); |
| 719 | } |
| 720 | |
| 721 | pPort->time = currentTime; |
| 722 | |
| 723 | return Success; |
| 724 | |
| 725 | } |
| 726 | |
| 727 | int |
| 728 | XvdiGetStill(ClientPtr client, |
| 729 | DrawablePtr pDraw, |
| 730 | XvPortPtr pPort, |
| 731 | GCPtr pGC, |
| 732 | INT16 vid_x, INT16 vid_y, |
| 733 | CARD16 vid_w, CARD16 vid_h, |
| 734 | INT16 drw_x, INT16 drw_y, CARD16 drw_w, CARD16 drw_h) |
| 735 | { |
| 736 | int status; |
| 737 | |
| 738 | CHECK_SIZE(drw_w, drw_h, vid_w, vid_h); |
| 739 | |
| 740 | /* UPDATE TIME VARIABLES FOR USE IN EVENTS */ |
| 741 | |
| 742 | UpdateCurrentTime(); |
| 743 | |
| 744 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 745 | INFORM CLIENT OF ITS FAILURE */ |
| 746 | |
| 747 | if (pPort->grab.client && (pPort->grab.client != client)) { |
| 748 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 749 | return Success; |
| 750 | } |
| 751 | |
| 752 | status = (*pPort->pAdaptor->ddGetStill) (client, pDraw, pPort, pGC, |
| 753 | vid_x, vid_y, vid_w, vid_h, |
| 754 | drw_x, drw_y, drw_w, drw_h); |
| 755 | |
| 756 | pPort->time = currentTime; |
| 757 | |
| 758 | return status; |
| 759 | |
| 760 | } |
| 761 | |
| 762 | int |
| 763 | XvdiGrabPort(ClientPtr client, XvPortPtr pPort, Time ctime, int *p_result) |
| 764 | { |
| 765 | unsigned long id; |
| 766 | TimeStamp time; |
| 767 | |
| 768 | UpdateCurrentTime(); |
| 769 | time = ClientTimeToServerTime(ctime); |
| 770 | |
| 771 | if (pPort->grab.client && (client != pPort->grab.client)) { |
| 772 | *p_result = XvAlreadyGrabbed; |
| 773 | return Success; |
| 774 | } |
| 775 | |
| 776 | if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 777 | (CompareTimeStamps(time, pPort->time) == EARLIER)) { |
| 778 | *p_result = XvInvalidTime; |
| 779 | return Success; |
| 780 | } |
| 781 | |
| 782 | if (client == pPort->grab.client) { |
| 783 | *p_result = Success; |
| 784 | return Success; |
| 785 | } |
| 786 | |
| 787 | id = FakeClientID(client->index); |
| 788 | |
| 789 | if (!AddResource(id, XvRTGrab, &pPort->grab)) { |
| 790 | return BadAlloc; |
| 791 | } |
| 792 | |
| 793 | /* IF THERE IS ACTIVE VIDEO THEN STOP IT */ |
| 794 | |
| 795 | if ((pPort->pDraw) && (client != pPort->client)) { |
| 796 | XvdiStopVideo(NULL, pPort, pPort->pDraw); |
| 797 | } |
| 798 | |
| 799 | pPort->grab.client = client; |
| 800 | pPort->grab.id = id; |
| 801 | |
| 802 | pPort->time = currentTime; |
| 803 | |
| 804 | *p_result = Success; |
| 805 | |
| 806 | return Success; |
| 807 | |
| 808 | } |
| 809 | |
| 810 | int |
| 811 | XvdiUngrabPort(ClientPtr client, XvPortPtr pPort, Time ctime) |
| 812 | { |
| 813 | TimeStamp time; |
| 814 | |
| 815 | UpdateCurrentTime(); |
| 816 | time = ClientTimeToServerTime(ctime); |
| 817 | |
| 818 | if ((!pPort->grab.client) || (client != pPort->grab.client)) { |
| 819 | return Success; |
| 820 | } |
| 821 | |
| 822 | if ((CompareTimeStamps(time, currentTime) == LATER) || |
| 823 | (CompareTimeStamps(time, pPort->time) == EARLIER)) { |
| 824 | return Success; |
| 825 | } |
| 826 | |
| 827 | /* FREE THE GRAB RESOURCE; AND SET THE GRAB CLIENT TO NULL */ |
| 828 | |
| 829 | FreeResource(pPort->grab.id, XvRTGrab); |
| 830 | pPort->grab.client = NULL; |
| 831 | |
| 832 | pPort->time = currentTime; |
| 833 | |
| 834 | return Success; |
| 835 | |
| 836 | } |
| 837 | |
| 838 | int |
| 839 | XvdiSelectVideoNotify(ClientPtr client, DrawablePtr pDraw, BOOL onoff) |
| 840 | { |
| 841 | XvVideoNotifyPtr pn, tpn, fpn; |
| 842 | int rc; |
| 843 | |
| 844 | /* FIND VideoNotify LIST */ |
| 845 | |
| 846 | rc = dixLookupResourceByType((pointer *) &pn, pDraw->id, |
| 847 | XvRTVideoNotifyList, client, DixWriteAccess); |
| 848 | if (rc != Success && rc != BadValue) |
| 849 | return rc; |
| 850 | |
| 851 | /* IF ONE DONES'T EXIST AND NO MASK, THEN JUST RETURN */ |
| 852 | |
| 853 | if (!onoff && !pn) |
| 854 | return Success; |
| 855 | |
| 856 | /* IF ONE DOESN'T EXIST CREATE IT AND ADD A RESOURCE SO THAT THE LIST |
| 857 | WILL BE DELETED WHEN THE DRAWABLE IS DESTROYED */ |
| 858 | |
| 859 | if (!pn) { |
| 860 | if (!(tpn = malloc(sizeof(XvVideoNotifyRec)))) |
| 861 | return BadAlloc; |
| 862 | tpn->next = NULL; |
| 863 | if (!AddResource(pDraw->id, XvRTVideoNotifyList, tpn)) { |
| 864 | free(tpn); |
| 865 | return BadAlloc; |
| 866 | } |
| 867 | } |
| 868 | else { |
| 869 | /* LOOK TO SEE IF ENTRY ALREADY EXISTS */ |
| 870 | |
| 871 | fpn = NULL; |
| 872 | tpn = pn; |
| 873 | while (tpn) { |
| 874 | if (tpn->client == client) { |
| 875 | if (!onoff) |
| 876 | tpn->client = NULL; |
| 877 | return Success; |
| 878 | } |
| 879 | if (!tpn->client) |
| 880 | fpn = tpn; /* TAKE NOTE OF FREE ENTRY */ |
| 881 | tpn = tpn->next; |
| 882 | } |
| 883 | |
| 884 | /* IF TUNNING OFF, THEN JUST RETURN */ |
| 885 | |
| 886 | if (!onoff) |
| 887 | return Success; |
| 888 | |
| 889 | /* IF ONE ISN'T FOUND THEN ALLOCATE ONE AND LINK IT INTO THE LIST */ |
| 890 | |
| 891 | if (fpn) { |
| 892 | tpn = fpn; |
| 893 | } |
| 894 | else { |
| 895 | if (!(tpn = malloc(sizeof(XvVideoNotifyRec)))) |
| 896 | return BadAlloc; |
| 897 | tpn->next = pn->next; |
| 898 | pn->next = tpn; |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | /* INIT CLIENT PTR IN CASE WE CAN'T ADD RESOURCE */ |
| 903 | /* ADD RESOURCE SO THAT IF CLIENT EXITS THE CLIENT PTR WILL BE CLEARED */ |
| 904 | |
| 905 | tpn->client = NULL; |
| 906 | tpn->id = FakeClientID(client->index); |
| 907 | AddResource(tpn->id, XvRTVideoNotify, tpn); |
| 908 | |
| 909 | tpn->client = client; |
| 910 | return Success; |
| 911 | |
| 912 | } |
| 913 | |
| 914 | int |
| 915 | XvdiSelectPortNotify(ClientPtr client, XvPortPtr pPort, BOOL onoff) |
| 916 | { |
| 917 | XvPortNotifyPtr pn, tpn; |
| 918 | |
| 919 | /* SEE IF CLIENT IS ALREADY IN LIST */ |
| 920 | |
| 921 | tpn = NULL; |
| 922 | pn = pPort->pNotify; |
| 923 | while (pn) { |
| 924 | if (!pn->client) |
| 925 | tpn = pn; /* TAKE NOTE OF FREE ENTRY */ |
| 926 | if (pn->client == client) |
| 927 | break; |
| 928 | pn = pn->next; |
| 929 | } |
| 930 | |
| 931 | /* IS THE CLIENT ALREADY ON THE LIST? */ |
| 932 | |
| 933 | if (pn) { |
| 934 | /* REMOVE IT? */ |
| 935 | |
| 936 | if (!onoff) { |
| 937 | pn->client = NULL; |
| 938 | FreeResource(pn->id, XvRTPortNotify); |
| 939 | } |
| 940 | |
| 941 | return Success; |
| 942 | } |
| 943 | |
| 944 | /* DIDN'T FIND IT; SO REUSE LIST ELEMENT IF ONE IS FREE OTHERWISE |
| 945 | CREATE A NEW ONE AND ADD IT TO THE BEGINNING OF THE LIST */ |
| 946 | |
| 947 | if (!tpn) { |
| 948 | if (!(tpn = malloc(sizeof(XvPortNotifyRec)))) |
| 949 | return BadAlloc; |
| 950 | tpn->next = pPort->pNotify; |
| 951 | pPort->pNotify = tpn; |
| 952 | } |
| 953 | |
| 954 | tpn->client = client; |
| 955 | tpn->id = FakeClientID(client->index); |
| 956 | AddResource(tpn->id, XvRTPortNotify, tpn); |
| 957 | |
| 958 | return Success; |
| 959 | |
| 960 | } |
| 961 | |
| 962 | int |
| 963 | XvdiStopVideo(ClientPtr client, XvPortPtr pPort, DrawablePtr pDraw) |
| 964 | { |
| 965 | int status; |
| 966 | |
| 967 | /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */ |
| 968 | |
| 969 | if (!pPort->pDraw || (pPort->pDraw != pDraw)) { |
| 970 | XvdiSendVideoNotify(pPort, pDraw, XvStopped); |
| 971 | return Success; |
| 972 | } |
| 973 | |
| 974 | /* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN |
| 975 | INFORM CLIENT OF ITS FAILURE */ |
| 976 | |
| 977 | if ((client) && (pPort->grab.client) && (pPort->grab.client != client)) { |
| 978 | XvdiSendVideoNotify(pPort, pDraw, XvBusy); |
| 979 | return Success; |
| 980 | } |
| 981 | |
| 982 | XvdiSendVideoNotify(pPort, pDraw, XvStopped); |
| 983 | |
| 984 | status = (*pPort->pAdaptor->ddStopVideo) (client, pPort, pDraw); |
| 985 | |
| 986 | pPort->pDraw = NULL; |
| 987 | pPort->client = (ClientPtr) client; |
| 988 | pPort->time = currentTime; |
| 989 | |
| 990 | return status; |
| 991 | |
| 992 | } |
| 993 | |
| 994 | int |
| 995 | XvdiPreemptVideo(ClientPtr client, XvPortPtr pPort, DrawablePtr pDraw) |
| 996 | { |
| 997 | int status; |
| 998 | |
| 999 | /* IF PORT ISN'T ACTIVE THEN WE'RE DONE */ |
| 1000 | |
| 1001 | if (!pPort->pDraw || (pPort->pDraw != pDraw)) |
| 1002 | return Success; |
| 1003 | |
| 1004 | XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted); |
| 1005 | |
| 1006 | status = (*pPort->pAdaptor->ddStopVideo) (client, pPort, pPort->pDraw); |
| 1007 | |
| 1008 | pPort->pDraw = NULL; |
| 1009 | pPort->client = (ClientPtr) client; |
| 1010 | pPort->time = currentTime; |
| 1011 | |
| 1012 | return status; |
| 1013 | |
| 1014 | } |
| 1015 | |
| 1016 | int |
| 1017 | XvdiMatchPort(XvPortPtr pPort, DrawablePtr pDraw) |
| 1018 | { |
| 1019 | |
| 1020 | XvAdaptorPtr pa; |
| 1021 | XvFormatPtr pf; |
| 1022 | int nf; |
| 1023 | |
| 1024 | pa = pPort->pAdaptor; |
| 1025 | |
| 1026 | if (pa->pScreen != pDraw->pScreen) |
| 1027 | return BadMatch; |
| 1028 | |
| 1029 | nf = pa->nFormats; |
| 1030 | pf = pa->pFormats; |
| 1031 | |
| 1032 | while (nf--) { |
| 1033 | if (pf->depth == pDraw->depth) |
| 1034 | return Success; |
| 1035 | pf++; |
| 1036 | } |
| 1037 | |
| 1038 | return BadMatch; |
| 1039 | |
| 1040 | } |
| 1041 | |
| 1042 | int |
| 1043 | XvdiSetPortAttribute(ClientPtr client, |
| 1044 | XvPortPtr pPort, Atom attribute, INT32 value) |
| 1045 | { |
| 1046 | int status; |
| 1047 | |
| 1048 | status = |
| 1049 | (*pPort->pAdaptor->ddSetPortAttribute) (client, pPort, attribute, |
| 1050 | value); |
| 1051 | if (status == Success) |
| 1052 | XvdiSendPortNotify(pPort, attribute, value); |
| 1053 | |
| 1054 | return status; |
| 1055 | } |
| 1056 | |
| 1057 | int |
| 1058 | XvdiGetPortAttribute(ClientPtr client, |
| 1059 | XvPortPtr pPort, Atom attribute, INT32 *p_value) |
| 1060 | { |
| 1061 | |
| 1062 | return |
| 1063 | (*pPort->pAdaptor->ddGetPortAttribute) (client, pPort, attribute, |
| 1064 | p_value); |
| 1065 | |
| 1066 | } |
| 1067 | |
| 1068 | static void |
| 1069 | WriteSwappedVideoNotifyEvent(xvEvent * from, xvEvent * to) |
| 1070 | { |
| 1071 | |
| 1072 | to->u.u.type = from->u.u.type; |
| 1073 | to->u.u.detail = from->u.u.detail; |
| 1074 | cpswaps(from->u.videoNotify.sequenceNumber, |
| 1075 | to->u.videoNotify.sequenceNumber); |
| 1076 | cpswapl(from->u.videoNotify.time, to->u.videoNotify.time); |
| 1077 | cpswapl(from->u.videoNotify.drawable, to->u.videoNotify.drawable); |
| 1078 | cpswapl(from->u.videoNotify.port, to->u.videoNotify.port); |
| 1079 | |
| 1080 | } |
| 1081 | |
| 1082 | static void |
| 1083 | WriteSwappedPortNotifyEvent(xvEvent * from, xvEvent * to) |
| 1084 | { |
| 1085 | |
| 1086 | to->u.u.type = from->u.u.type; |
| 1087 | to->u.u.detail = from->u.u.detail; |
| 1088 | cpswaps(from->u.portNotify.sequenceNumber, to->u.portNotify.sequenceNumber); |
| 1089 | cpswapl(from->u.portNotify.time, to->u.portNotify.time); |
| 1090 | cpswapl(from->u.portNotify.port, to->u.portNotify.port); |
| 1091 | cpswapl(from->u.portNotify.value, to->u.portNotify.value); |
| 1092 | |
| 1093 | } |