| 1 | /* |
| 2 | * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) |
| 3 | * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice including the dates of first publication and |
| 13 | * either this permission notice or a reference to |
| 14 | * http://oss.sgi.com/projects/FreeB/ |
| 15 | * shall be included in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF |
| 22 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 23 | * SOFTWARE. |
| 24 | * |
| 25 | * Except as contained in this notice, the name of Silicon Graphics, Inc. |
| 26 | * shall not be used in advertising or otherwise to promote the sale, use or |
| 27 | * other dealings in this Software without prior written authorization from |
| 28 | * Silicon Graphics, Inc. |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_DIX_CONFIG_H |
| 32 | #include <dix-config.h> |
| 33 | #endif |
| 34 | |
| 35 | #include <string.h> |
| 36 | #include <assert.h> |
| 37 | |
| 38 | #include "glxserver.h" |
| 39 | #include <GL/glxtokens.h> |
| 40 | #include <unpack.h> |
| 41 | #include <pixmapstr.h> |
| 42 | #include <windowstr.h> |
| 43 | #include "glxutil.h" |
| 44 | #include "glxext.h" |
| 45 | #include "indirect_dispatch.h" |
| 46 | #include "indirect_table.h" |
| 47 | #include "indirect_util.h" |
| 48 | |
| 49 | static char GLXServerVendorName[] = "SGI"; |
| 50 | |
| 51 | _X_HIDDEN int |
| 52 | validGlxScreen(ClientPtr client, int screen, __GLXscreen ** pGlxScreen, |
| 53 | int *err) |
| 54 | { |
| 55 | /* |
| 56 | ** Check if screen exists. |
| 57 | */ |
| 58 | if (screen < 0 || screen >= screenInfo.numScreens) { |
| 59 | client->errorValue = screen; |
| 60 | *err = BadValue; |
| 61 | return FALSE; |
| 62 | } |
| 63 | *pGlxScreen = glxGetScreen(screenInfo.screens[screen]); |
| 64 | |
| 65 | return TRUE; |
| 66 | } |
| 67 | |
| 68 | _X_HIDDEN int |
| 69 | validGlxFBConfig(ClientPtr client, __GLXscreen * pGlxScreen, XID id, |
| 70 | __GLXconfig ** config, int *err) |
| 71 | { |
| 72 | __GLXconfig *m; |
| 73 | |
| 74 | for (m = pGlxScreen->fbconfigs; m != NULL; m = m->next) |
| 75 | if (m->fbconfigID == id) { |
| 76 | *config = m; |
| 77 | return TRUE; |
| 78 | } |
| 79 | |
| 80 | client->errorValue = id; |
| 81 | *err = __glXError(GLXBadFBConfig); |
| 82 | |
| 83 | return FALSE; |
| 84 | } |
| 85 | |
| 86 | static int |
| 87 | validGlxVisual(ClientPtr client, __GLXscreen * pGlxScreen, XID id, |
| 88 | __GLXconfig ** config, int *err) |
| 89 | { |
| 90 | int i; |
| 91 | |
| 92 | for (i = 0; i < pGlxScreen->numVisuals; i++) |
| 93 | if (pGlxScreen->visuals[i]->visualID == id) { |
| 94 | *config = pGlxScreen->visuals[i]; |
| 95 | return TRUE; |
| 96 | } |
| 97 | |
| 98 | client->errorValue = id; |
| 99 | *err = BadValue; |
| 100 | |
| 101 | return FALSE; |
| 102 | } |
| 103 | |
| 104 | static int |
| 105 | validGlxFBConfigForWindow(ClientPtr client, __GLXconfig * config, |
| 106 | DrawablePtr pDraw, int *err) |
| 107 | { |
| 108 | ScreenPtr pScreen = pDraw->pScreen; |
| 109 | VisualPtr pVisual = NULL; |
| 110 | XID vid; |
| 111 | int i; |
| 112 | |
| 113 | vid = wVisual((WindowPtr) pDraw); |
| 114 | for (i = 0; i < pScreen->numVisuals; i++) { |
| 115 | if (pScreen->visuals[i].vid == vid) { |
| 116 | pVisual = &pScreen->visuals[i]; |
| 117 | break; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /* FIXME: What exactly should we check here... */ |
| 122 | if (pVisual->class != glxConvertToXVisualType(config->visualType) || |
| 123 | !(config->drawableType & GLX_WINDOW_BIT)) { |
| 124 | client->errorValue = pDraw->id; |
| 125 | *err = BadMatch; |
| 126 | return FALSE; |
| 127 | } |
| 128 | |
| 129 | return TRUE; |
| 130 | } |
| 131 | |
| 132 | _X_HIDDEN int |
| 133 | validGlxContext(ClientPtr client, XID id, int access_mode, |
| 134 | __GLXcontext ** context, int *err) |
| 135 | { |
| 136 | *err = dixLookupResourceByType((pointer *) context, id, |
| 137 | __glXContextRes, client, access_mode); |
| 138 | if (*err != Success || (*context)->idExists == GL_FALSE) { |
| 139 | client->errorValue = id; |
| 140 | if (*err == BadValue || *err == Success) |
| 141 | *err = __glXError(GLXBadContext); |
| 142 | return FALSE; |
| 143 | } |
| 144 | |
| 145 | return TRUE; |
| 146 | } |
| 147 | |
| 148 | static int |
| 149 | validGlxDrawable(ClientPtr client, XID id, int type, int access_mode, |
| 150 | __GLXdrawable ** drawable, int *err) |
| 151 | { |
| 152 | int rc; |
| 153 | |
| 154 | rc = dixLookupResourceByType((pointer *) drawable, id, |
| 155 | __glXDrawableRes, client, access_mode); |
| 156 | if (rc != Success && rc != BadValue) { |
| 157 | *err = rc; |
| 158 | client->errorValue = id; |
| 159 | return FALSE; |
| 160 | } |
| 161 | |
| 162 | /* If the ID of the glx drawable we looked up doesn't match the id |
| 163 | * we looked for, it's because we looked it up under the X |
| 164 | * drawable ID (see DoCreateGLXDrawable). */ |
| 165 | if (rc == BadValue || |
| 166 | (*drawable)->drawId != id || |
| 167 | (type != GLX_DRAWABLE_ANY && type != (*drawable)->type)) { |
| 168 | client->errorValue = id; |
| 169 | switch (type) { |
| 170 | case GLX_DRAWABLE_WINDOW: |
| 171 | *err = __glXError(GLXBadWindow); |
| 172 | return FALSE; |
| 173 | case GLX_DRAWABLE_PIXMAP: |
| 174 | *err = __glXError(GLXBadPixmap); |
| 175 | return FALSE; |
| 176 | case GLX_DRAWABLE_PBUFFER: |
| 177 | *err = __glXError(GLXBadPbuffer); |
| 178 | return FALSE; |
| 179 | case GLX_DRAWABLE_ANY: |
| 180 | *err = __glXError(GLXBadDrawable); |
| 181 | return FALSE; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | return TRUE; |
| 186 | } |
| 187 | |
| 188 | void |
| 189 | __glXContextDestroy(__GLXcontext * context) |
| 190 | { |
| 191 | __glXFlushContextCache(); |
| 192 | } |
| 193 | |
| 194 | static void |
| 195 | __glXdirectContextDestroy(__GLXcontext * context) |
| 196 | { |
| 197 | __glXContextDestroy(context); |
| 198 | free(context); |
| 199 | } |
| 200 | |
| 201 | _X_HIDDEN __GLXcontext * |
| 202 | __glXdirectContextCreate(__GLXscreen * screen, |
| 203 | __GLXconfig * modes, __GLXcontext * shareContext) |
| 204 | { |
| 205 | __GLXcontext *context; |
| 206 | |
| 207 | context = calloc(1, sizeof(__GLXcontext)); |
| 208 | if (context == NULL) |
| 209 | return NULL; |
| 210 | |
| 211 | context->destroy = __glXdirectContextDestroy; |
| 212 | |
| 213 | return context; |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * Create a GL context with the given properties. This routine is used |
| 218 | * to implement \c glXCreateContext, \c glXCreateNewContext, and |
| 219 | * \c glXCreateContextWithConfigSGIX. This works becuase of the hack way |
| 220 | * that GLXFBConfigs are implemented. Basically, the FBConfigID is the |
| 221 | * same as the VisualID. |
| 222 | */ |
| 223 | |
| 224 | static int |
| 225 | DoCreateContext(__GLXclientState * cl, GLXContextID gcId, |
| 226 | GLXContextID shareList, __GLXconfig * config, |
| 227 | __GLXscreen * pGlxScreen, GLboolean isDirect) |
| 228 | { |
| 229 | ClientPtr client = cl->client; |
| 230 | __GLXcontext *glxc, *shareglxc; |
| 231 | int err; |
| 232 | |
| 233 | LEGAL_NEW_RESOURCE(gcId, client); |
| 234 | |
| 235 | /* |
| 236 | ** Find the display list space that we want to share. |
| 237 | ** |
| 238 | ** NOTE: In a multithreaded X server, we would need to keep a reference |
| 239 | ** count for each display list so that if one client detroyed a list that |
| 240 | ** another client was using, the list would not really be freed until it |
| 241 | ** was no longer in use. Since this sample implementation has no support |
| 242 | ** for multithreaded servers, we don't do this. |
| 243 | */ |
| 244 | if (shareList == None) { |
| 245 | shareglxc = 0; |
| 246 | } |
| 247 | else { |
| 248 | if (!validGlxContext(client, shareList, DixReadAccess, |
| 249 | &shareglxc, &err)) |
| 250 | return err; |
| 251 | |
| 252 | /* Page 26 (page 32 of the PDF) of the GLX 1.4 spec says: |
| 253 | * |
| 254 | * "The server context state for all sharing contexts must exist |
| 255 | * in a single address space or a BadMatch error is generated." |
| 256 | * |
| 257 | * If the share context is indirect, force the new context to also be |
| 258 | * indirect. If the shard context is direct but the new context |
| 259 | * cannot be direct, generate BadMatch. |
| 260 | */ |
| 261 | if (shareglxc->isDirect && !isDirect) { |
| 262 | client->errorValue = shareList; |
| 263 | return BadMatch; |
| 264 | } |
| 265 | else if (!shareglxc->isDirect) { |
| 266 | /* |
| 267 | ** Create an indirect context regardless of what the client asked |
| 268 | ** for; this way we can share display list space with shareList. |
| 269 | */ |
| 270 | isDirect = GL_FALSE; |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | /* |
| 275 | ** Allocate memory for the new context |
| 276 | */ |
| 277 | if (!isDirect) { |
| 278 | /* Without any attributes, the only error that the driver should be |
| 279 | * able to generate is BadAlloc. As result, just drop the error |
| 280 | * returned from the driver on the floor. |
| 281 | */ |
| 282 | glxc = pGlxScreen->createContext(pGlxScreen, config, shareglxc, |
| 283 | 0, NULL, &err); |
| 284 | } |
| 285 | else |
| 286 | glxc = __glXdirectContextCreate(pGlxScreen, config, shareglxc); |
| 287 | if (!glxc) { |
| 288 | return BadAlloc; |
| 289 | } |
| 290 | |
| 291 | /* Initialize the GLXcontext structure. |
| 292 | */ |
| 293 | glxc->pGlxScreen = pGlxScreen; |
| 294 | glxc->config = config; |
| 295 | glxc->id = gcId; |
| 296 | glxc->share_id = shareList; |
| 297 | glxc->idExists = GL_TRUE; |
| 298 | glxc->currentClient = NULL; |
| 299 | glxc->isDirect = isDirect; |
| 300 | glxc->hasUnflushedCommands = GL_FALSE; |
| 301 | glxc->renderMode = GL_RENDER; |
| 302 | glxc->feedbackBuf = NULL; |
| 303 | glxc->feedbackBufSize = 0; |
| 304 | glxc->selectBuf = NULL; |
| 305 | glxc->selectBufSize = 0; |
| 306 | glxc->drawPriv = NULL; |
| 307 | glxc->readPriv = NULL; |
| 308 | |
| 309 | /* The GLX_ARB_create_context_robustness spec says: |
| 310 | * |
| 311 | * "The default value for GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB |
| 312 | * is GLX_NO_RESET_NOTIFICATION_ARB." |
| 313 | * |
| 314 | * Without using glXCreateContextAttribsARB, there is no way to specify a |
| 315 | * non-default reset notification strategy. |
| 316 | */ |
| 317 | glxc->resetNotificationStrategy = GLX_NO_RESET_NOTIFICATION_ARB; |
| 318 | |
| 319 | /* Add the new context to the various global tables of GLX contexts. |
| 320 | */ |
| 321 | if (!__glXAddContext(glxc)) { |
| 322 | (*glxc->destroy) (glxc); |
| 323 | client->errorValue = gcId; |
| 324 | return BadAlloc; |
| 325 | } |
| 326 | |
| 327 | return Success; |
| 328 | } |
| 329 | |
| 330 | int |
| 331 | __glXDisp_CreateContext(__GLXclientState * cl, GLbyte * pc) |
| 332 | { |
| 333 | ClientPtr client = cl->client; |
| 334 | xGLXCreateContextReq *req = (xGLXCreateContextReq *) pc; |
| 335 | __GLXconfig *config; |
| 336 | __GLXscreen *pGlxScreen; |
| 337 | int err; |
| 338 | |
| 339 | REQUEST_SIZE_MATCH(xGLXCreateContextReq); |
| 340 | |
| 341 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 342 | return err; |
| 343 | if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) |
| 344 | return err; |
| 345 | |
| 346 | return DoCreateContext(cl, req->context, req->shareList, |
| 347 | config, pGlxScreen, req->isDirect); |
| 348 | } |
| 349 | |
| 350 | int |
| 351 | __glXDisp_CreateNewContext(__GLXclientState * cl, GLbyte * pc) |
| 352 | { |
| 353 | ClientPtr client = cl->client; |
| 354 | xGLXCreateNewContextReq *req = (xGLXCreateNewContextReq *) pc; |
| 355 | __GLXconfig *config; |
| 356 | __GLXscreen *pGlxScreen; |
| 357 | int err; |
| 358 | |
| 359 | REQUEST_SIZE_MATCH(xGLXCreateNewContextReq); |
| 360 | |
| 361 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 362 | return err; |
| 363 | if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) |
| 364 | return err; |
| 365 | |
| 366 | return DoCreateContext(cl, req->context, req->shareList, |
| 367 | config, pGlxScreen, req->isDirect); |
| 368 | } |
| 369 | |
| 370 | int |
| 371 | __glXDisp_CreateContextWithConfigSGIX(__GLXclientState * cl, GLbyte * pc) |
| 372 | { |
| 373 | ClientPtr client = cl->client; |
| 374 | xGLXCreateContextWithConfigSGIXReq *req = |
| 375 | (xGLXCreateContextWithConfigSGIXReq *) pc; |
| 376 | __GLXconfig *config; |
| 377 | __GLXscreen *pGlxScreen; |
| 378 | int err; |
| 379 | |
| 380 | REQUEST_SIZE_MATCH(xGLXCreateContextWithConfigSGIXReq); |
| 381 | |
| 382 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 383 | return err; |
| 384 | if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) |
| 385 | return err; |
| 386 | |
| 387 | return DoCreateContext(cl, req->context, req->shareList, |
| 388 | config, pGlxScreen, req->isDirect); |
| 389 | } |
| 390 | |
| 391 | int |
| 392 | __glXDisp_DestroyContext(__GLXclientState * cl, GLbyte * pc) |
| 393 | { |
| 394 | ClientPtr client = cl->client; |
| 395 | xGLXDestroyContextReq *req = (xGLXDestroyContextReq *) pc; |
| 396 | __GLXcontext *glxc; |
| 397 | int err; |
| 398 | |
| 399 | REQUEST_SIZE_MATCH(xGLXDestroyContextReq); |
| 400 | |
| 401 | if (!validGlxContext(cl->client, req->context, DixDestroyAccess, |
| 402 | &glxc, &err)) |
| 403 | return err; |
| 404 | |
| 405 | FreeResourceByType(req->context, __glXContextRes, FALSE); |
| 406 | |
| 407 | return Success; |
| 408 | } |
| 409 | |
| 410 | /* |
| 411 | * This will return "deleted" contexts, ie, where idExists is GL_FALSE. |
| 412 | * Contrast validGlxContext, which will not. We're cheating here and |
| 413 | * using the XID as the context tag, which is fine as long as we defer |
| 414 | * actually destroying the context until it's no longer referenced, and |
| 415 | * block clients from trying to MakeCurrent on contexts that are on the |
| 416 | * way to destruction. Notice that DoMakeCurrent calls validGlxContext |
| 417 | * for new contexts but __glXLookupContextByTag for previous contexts. |
| 418 | */ |
| 419 | __GLXcontext * |
| 420 | __glXLookupContextByTag(__GLXclientState * cl, GLXContextTag tag) |
| 421 | { |
| 422 | __GLXcontext *ret; |
| 423 | |
| 424 | if (dixLookupResourceByType((void **) &ret, tag, __glXContextRes, |
| 425 | cl->client, DixUseAccess) == Success) |
| 426 | return ret; |
| 427 | |
| 428 | return NULL; |
| 429 | } |
| 430 | |
| 431 | /*****************************************************************************/ |
| 432 | |
| 433 | static void |
| 434 | StopUsingContext(__GLXcontext * glxc) |
| 435 | { |
| 436 | if (glxc) { |
| 437 | if (glxc == __glXLastContext) { |
| 438 | /* Tell server GL library */ |
| 439 | __glXLastContext = 0; |
| 440 | } |
| 441 | glxc->currentClient = NULL; |
| 442 | if (!glxc->idExists) { |
| 443 | FreeResourceByType(glxc->id, __glXContextRes, FALSE); |
| 444 | } |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | static void |
| 449 | StartUsingContext(__GLXclientState * cl, __GLXcontext * glxc) |
| 450 | { |
| 451 | __glXLastContext = glxc; |
| 452 | glxc->currentClient = cl->client; |
| 453 | } |
| 454 | |
| 455 | /** |
| 456 | * This is a helper function to handle the legacy (pre GLX 1.3) cases |
| 457 | * where passing an X window to glXMakeCurrent is valid. Given a |
| 458 | * resource ID, look up the GLX drawable if available, otherwise, make |
| 459 | * sure it's an X window and create a GLX drawable one the fly. |
| 460 | */ |
| 461 | static __GLXdrawable * |
| 462 | __glXGetDrawable(__GLXcontext * glxc, GLXDrawable drawId, ClientPtr client, |
| 463 | int *error) |
| 464 | { |
| 465 | DrawablePtr pDraw; |
| 466 | __GLXdrawable *pGlxDraw; |
| 467 | int rc; |
| 468 | |
| 469 | if (validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, |
| 470 | DixWriteAccess, &pGlxDraw, &rc)) { |
| 471 | if (glxc != NULL && pGlxDraw->config != glxc->config) { |
| 472 | client->errorValue = drawId; |
| 473 | *error = BadMatch; |
| 474 | return NULL; |
| 475 | } |
| 476 | |
| 477 | return pGlxDraw; |
| 478 | } |
| 479 | |
| 480 | /* No active context and an unknown drawable, bail. */ |
| 481 | if (glxc == NULL) { |
| 482 | client->errorValue = drawId; |
| 483 | *error = BadMatch; |
| 484 | return NULL; |
| 485 | } |
| 486 | |
| 487 | /* The drawId wasn't a GLX drawable. Make sure it's a window and |
| 488 | * create a GLXWindow for it. Check that the drawable screen |
| 489 | * matches the context screen and that the context fbconfig is |
| 490 | * compatible with the window visual. */ |
| 491 | |
| 492 | rc = dixLookupDrawable(&pDraw, drawId, client, 0, DixGetAttrAccess); |
| 493 | if (rc != Success || pDraw->type != DRAWABLE_WINDOW) { |
| 494 | client->errorValue = drawId; |
| 495 | *error = __glXError(GLXBadDrawable); |
| 496 | return NULL; |
| 497 | } |
| 498 | |
| 499 | if (pDraw->pScreen != glxc->pGlxScreen->pScreen) { |
| 500 | client->errorValue = pDraw->pScreen->myNum; |
| 501 | *error = BadMatch; |
| 502 | return NULL; |
| 503 | } |
| 504 | |
| 505 | if (!validGlxFBConfigForWindow(client, glxc->config, pDraw, error)) |
| 506 | return NULL; |
| 507 | |
| 508 | pGlxDraw = glxc->pGlxScreen->createDrawable(client, glxc->pGlxScreen, |
| 509 | pDraw, drawId, |
| 510 | GLX_DRAWABLE_WINDOW, |
| 511 | drawId, glxc->config); |
| 512 | if (!pGlxDraw) { |
| 513 | *error = BadAlloc; |
| 514 | return NULL; |
| 515 | } |
| 516 | |
| 517 | /* since we are creating the drawablePrivate, drawId should be new */ |
| 518 | if (!AddResource(drawId, __glXDrawableRes, pGlxDraw)) { |
| 519 | pGlxDraw->destroy(pGlxDraw); |
| 520 | *error = BadAlloc; |
| 521 | return NULL; |
| 522 | } |
| 523 | |
| 524 | return pGlxDraw; |
| 525 | } |
| 526 | |
| 527 | /*****************************************************************************/ |
| 528 | /* |
| 529 | ** Make an OpenGL context and drawable current. |
| 530 | */ |
| 531 | |
| 532 | static int |
| 533 | DoMakeCurrent(__GLXclientState * cl, |
| 534 | GLXDrawable drawId, GLXDrawable readId, |
| 535 | GLXContextID contextId, GLXContextTag tag) |
| 536 | { |
| 537 | ClientPtr client = cl->client; |
| 538 | xGLXMakeCurrentReply reply; |
| 539 | __GLXcontext *glxc, *prevglxc; |
| 540 | __GLXdrawable *drawPriv = NULL; |
| 541 | __GLXdrawable *readPriv = NULL; |
| 542 | int error; |
| 543 | GLuint mask; |
| 544 | |
| 545 | /* |
| 546 | ** If one is None and the other isn't, it's a bad match. |
| 547 | */ |
| 548 | |
| 549 | mask = (drawId == None) ? (1 << 0) : 0; |
| 550 | mask |= (readId == None) ? (1 << 1) : 0; |
| 551 | mask |= (contextId == None) ? (1 << 2) : 0; |
| 552 | |
| 553 | if ((mask != 0x00) && (mask != 0x07)) { |
| 554 | return BadMatch; |
| 555 | } |
| 556 | |
| 557 | /* |
| 558 | ** Lookup old context. If we have one, it must be in a usable state. |
| 559 | */ |
| 560 | if (tag != 0) { |
| 561 | prevglxc = __glXLookupContextByTag(cl, tag); |
| 562 | if (!prevglxc) { |
| 563 | /* |
| 564 | ** Tag for previous context is invalid. |
| 565 | */ |
| 566 | return __glXError(GLXBadContextTag); |
| 567 | } |
| 568 | if (prevglxc->renderMode != GL_RENDER) { |
| 569 | /* Oops. Not in render mode render. */ |
| 570 | client->errorValue = prevglxc->id; |
| 571 | return __glXError(GLXBadContextState); |
| 572 | } |
| 573 | } |
| 574 | else { |
| 575 | prevglxc = 0; |
| 576 | } |
| 577 | |
| 578 | /* |
| 579 | ** Lookup new context. It must not be current for someone else. |
| 580 | */ |
| 581 | if (contextId != None) { |
| 582 | int status; |
| 583 | |
| 584 | if (!validGlxContext(client, contextId, DixUseAccess, &glxc, &error)) |
| 585 | return error; |
| 586 | if ((glxc != prevglxc) && glxc->currentClient) { |
| 587 | /* Context is current to somebody else */ |
| 588 | return BadAccess; |
| 589 | } |
| 590 | |
| 591 | assert(drawId != None); |
| 592 | assert(readId != None); |
| 593 | |
| 594 | drawPriv = __glXGetDrawable(glxc, drawId, client, &status); |
| 595 | if (drawPriv == NULL) |
| 596 | return status; |
| 597 | |
| 598 | readPriv = __glXGetDrawable(glxc, readId, client, &status); |
| 599 | if (readPriv == NULL) |
| 600 | return status; |
| 601 | |
| 602 | } |
| 603 | else { |
| 604 | /* Switching to no context. Ignore new drawable. */ |
| 605 | glxc = 0; |
| 606 | drawPriv = 0; |
| 607 | readPriv = 0; |
| 608 | } |
| 609 | |
| 610 | if (prevglxc) { |
| 611 | /* |
| 612 | ** Flush the previous context if needed. |
| 613 | */ |
| 614 | if (prevglxc->hasUnflushedCommands) { |
| 615 | if (__glXForceCurrent(cl, tag, (int *) &error)) { |
| 616 | glFlush(); |
| 617 | prevglxc->hasUnflushedCommands = GL_FALSE; |
| 618 | } |
| 619 | else { |
| 620 | return error; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | /* |
| 625 | ** Make the previous context not current. |
| 626 | */ |
| 627 | if (!(*prevglxc->loseCurrent) (prevglxc)) { |
| 628 | return __glXError(GLXBadContext); |
| 629 | } |
| 630 | __glXFlushContextCache(); |
| 631 | if (!prevglxc->isDirect) { |
| 632 | prevglxc->drawPriv = NULL; |
| 633 | prevglxc->readPriv = NULL; |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | if ((glxc != 0) && !glxc->isDirect) { |
| 638 | |
| 639 | glxc->drawPriv = drawPriv; |
| 640 | glxc->readPriv = readPriv; |
| 641 | |
| 642 | /* make the context current */ |
| 643 | if (!(*glxc->makeCurrent) (glxc)) { |
| 644 | glxc->drawPriv = NULL; |
| 645 | glxc->readPriv = NULL; |
| 646 | return __glXError(GLXBadContext); |
| 647 | } |
| 648 | |
| 649 | glxc->currentClient = client; |
| 650 | } |
| 651 | |
| 652 | StopUsingContext(prevglxc); |
| 653 | |
| 654 | reply = (xGLXMakeCurrentReply) { |
| 655 | .type = X_Reply, |
| 656 | .sequenceNumber = client->sequence, |
| 657 | .length = 0, |
| 658 | .contextTag = 0 |
| 659 | }; |
| 660 | |
| 661 | if (glxc) { |
| 662 | StartUsingContext(cl, glxc); |
| 663 | reply.contextTag = glxc->id; |
| 664 | } |
| 665 | |
| 666 | if (client->swapped) { |
| 667 | __glXSwapMakeCurrentReply(client, &reply); |
| 668 | } |
| 669 | else { |
| 670 | WriteToClient(client, sz_xGLXMakeCurrentReply, &reply); |
| 671 | } |
| 672 | return Success; |
| 673 | } |
| 674 | |
| 675 | int |
| 676 | __glXDisp_MakeCurrent(__GLXclientState * cl, GLbyte * pc) |
| 677 | { |
| 678 | ClientPtr client = cl->client; |
| 679 | xGLXMakeCurrentReq *req = (xGLXMakeCurrentReq *) pc; |
| 680 | |
| 681 | REQUEST_SIZE_MATCH(xGLXMakeCurrentReq); |
| 682 | |
| 683 | return DoMakeCurrent(cl, req->drawable, req->drawable, |
| 684 | req->context, req->oldContextTag); |
| 685 | } |
| 686 | |
| 687 | int |
| 688 | __glXDisp_MakeContextCurrent(__GLXclientState * cl, GLbyte * pc) |
| 689 | { |
| 690 | ClientPtr client = cl->client; |
| 691 | xGLXMakeContextCurrentReq *req = (xGLXMakeContextCurrentReq *) pc; |
| 692 | |
| 693 | REQUEST_SIZE_MATCH(xGLXMakeContextCurrentReq); |
| 694 | |
| 695 | return DoMakeCurrent(cl, req->drawable, req->readdrawable, |
| 696 | req->context, req->oldContextTag); |
| 697 | } |
| 698 | |
| 699 | int |
| 700 | __glXDisp_MakeCurrentReadSGI(__GLXclientState * cl, GLbyte * pc) |
| 701 | { |
| 702 | ClientPtr client = cl->client; |
| 703 | xGLXMakeCurrentReadSGIReq *req = (xGLXMakeCurrentReadSGIReq *) pc; |
| 704 | |
| 705 | REQUEST_SIZE_MATCH(xGLXMakeCurrentReadSGIReq); |
| 706 | |
| 707 | return DoMakeCurrent(cl, req->drawable, req->readable, |
| 708 | req->context, req->oldContextTag); |
| 709 | } |
| 710 | |
| 711 | int |
| 712 | __glXDisp_IsDirect(__GLXclientState * cl, GLbyte * pc) |
| 713 | { |
| 714 | ClientPtr client = cl->client; |
| 715 | xGLXIsDirectReq *req = (xGLXIsDirectReq *) pc; |
| 716 | xGLXIsDirectReply reply; |
| 717 | __GLXcontext *glxc; |
| 718 | int err; |
| 719 | |
| 720 | REQUEST_SIZE_MATCH(xGLXIsDirectReq); |
| 721 | |
| 722 | if (!validGlxContext(cl->client, req->context, DixReadAccess, &glxc, &err)) |
| 723 | return err; |
| 724 | |
| 725 | reply = (xGLXIsDirectReply) { |
| 726 | .type = X_Reply, |
| 727 | .sequenceNumber = client->sequence, |
| 728 | .length = 0, |
| 729 | .isDirect = glxc->isDirect |
| 730 | }; |
| 731 | |
| 732 | if (client->swapped) { |
| 733 | __glXSwapIsDirectReply(client, &reply); |
| 734 | } |
| 735 | else { |
| 736 | WriteToClient(client, sz_xGLXIsDirectReply, &reply); |
| 737 | } |
| 738 | |
| 739 | return Success; |
| 740 | } |
| 741 | |
| 742 | int |
| 743 | __glXDisp_QueryVersion(__GLXclientState * cl, GLbyte * pc) |
| 744 | { |
| 745 | ClientPtr client = cl->client; |
| 746 | xGLXQueryVersionReq *req = (xGLXQueryVersionReq *) pc; |
| 747 | xGLXQueryVersionReply reply; |
| 748 | GLuint major, minor; |
| 749 | |
| 750 | REQUEST_SIZE_MATCH(xGLXQueryVersionReq); |
| 751 | |
| 752 | major = req->majorVersion; |
| 753 | minor = req->minorVersion; |
| 754 | (void) major; |
| 755 | (void) minor; |
| 756 | |
| 757 | /* |
| 758 | ** Server should take into consideration the version numbers sent by the |
| 759 | ** client if it wants to work with older clients; however, in this |
| 760 | ** implementation the server just returns its version number. |
| 761 | */ |
| 762 | reply = (xGLXQueryVersionReply) { |
| 763 | .type = X_Reply, |
| 764 | .sequenceNumber = client->sequence, |
| 765 | .length = 0, |
| 766 | .majorVersion = glxMajorVersion, |
| 767 | .minorVersion = glxMinorVersion |
| 768 | }; |
| 769 | |
| 770 | if (client->swapped) { |
| 771 | __glXSwapQueryVersionReply(client, &reply); |
| 772 | } |
| 773 | else { |
| 774 | WriteToClient(client, sz_xGLXQueryVersionReply, &reply); |
| 775 | } |
| 776 | return Success; |
| 777 | } |
| 778 | |
| 779 | int |
| 780 | __glXDisp_WaitGL(__GLXclientState * cl, GLbyte * pc) |
| 781 | { |
| 782 | ClientPtr client = cl->client; |
| 783 | xGLXWaitGLReq *req = (xGLXWaitGLReq *) pc; |
| 784 | GLXContextTag tag; |
| 785 | __GLXcontext *glxc = NULL; |
| 786 | int error; |
| 787 | |
| 788 | REQUEST_SIZE_MATCH(xGLXWaitGLReq); |
| 789 | |
| 790 | tag = req->contextTag; |
| 791 | if (tag) { |
| 792 | glxc = __glXLookupContextByTag(cl, tag); |
| 793 | if (!glxc) |
| 794 | return __glXError(GLXBadContextTag); |
| 795 | |
| 796 | if (!__glXForceCurrent(cl, req->contextTag, &error)) |
| 797 | return error; |
| 798 | |
| 799 | glFinish(); |
| 800 | } |
| 801 | |
| 802 | if (glxc && glxc->drawPriv->waitGL) |
| 803 | (*glxc->drawPriv->waitGL) (glxc->drawPriv); |
| 804 | |
| 805 | return Success; |
| 806 | } |
| 807 | |
| 808 | int |
| 809 | __glXDisp_WaitX(__GLXclientState * cl, GLbyte * pc) |
| 810 | { |
| 811 | ClientPtr client = cl->client; |
| 812 | xGLXWaitXReq *req = (xGLXWaitXReq *) pc; |
| 813 | GLXContextTag tag; |
| 814 | __GLXcontext *glxc = NULL; |
| 815 | int error; |
| 816 | |
| 817 | REQUEST_SIZE_MATCH(xGLXWaitXReq); |
| 818 | |
| 819 | tag = req->contextTag; |
| 820 | if (tag) { |
| 821 | glxc = __glXLookupContextByTag(cl, tag); |
| 822 | if (!glxc) |
| 823 | return __glXError(GLXBadContextTag); |
| 824 | |
| 825 | if (!__glXForceCurrent(cl, req->contextTag, &error)) |
| 826 | return error; |
| 827 | } |
| 828 | |
| 829 | if (glxc && glxc->drawPriv->waitX) |
| 830 | (*glxc->drawPriv->waitX) (glxc->drawPriv); |
| 831 | |
| 832 | return Success; |
| 833 | } |
| 834 | |
| 835 | int |
| 836 | __glXDisp_CopyContext(__GLXclientState * cl, GLbyte * pc) |
| 837 | { |
| 838 | ClientPtr client = cl->client; |
| 839 | xGLXCopyContextReq *req = (xGLXCopyContextReq *) pc; |
| 840 | GLXContextID source; |
| 841 | GLXContextID dest; |
| 842 | GLXContextTag tag; |
| 843 | unsigned long mask; |
| 844 | __GLXcontext *src, *dst; |
| 845 | int error; |
| 846 | |
| 847 | REQUEST_SIZE_MATCH(xGLXCopyContextReq); |
| 848 | |
| 849 | source = req->source; |
| 850 | dest = req->dest; |
| 851 | tag = req->contextTag; |
| 852 | mask = req->mask; |
| 853 | if (!validGlxContext(cl->client, source, DixReadAccess, &src, &error)) |
| 854 | return error; |
| 855 | if (!validGlxContext(cl->client, dest, DixWriteAccess, &dst, &error)) |
| 856 | return error; |
| 857 | |
| 858 | /* |
| 859 | ** They must be in the same address space, and same screen. |
| 860 | ** NOTE: no support for direct rendering contexts here. |
| 861 | */ |
| 862 | if (src->isDirect || dst->isDirect || (src->pGlxScreen != dst->pGlxScreen)) { |
| 863 | client->errorValue = source; |
| 864 | return BadMatch; |
| 865 | } |
| 866 | |
| 867 | /* |
| 868 | ** The destination context must not be current for any client. |
| 869 | */ |
| 870 | if (dst->currentClient) { |
| 871 | client->errorValue = dest; |
| 872 | return BadAccess; |
| 873 | } |
| 874 | |
| 875 | if (tag) { |
| 876 | __GLXcontext *tagcx = __glXLookupContextByTag(cl, tag); |
| 877 | |
| 878 | if (!tagcx) { |
| 879 | return __glXError(GLXBadContextTag); |
| 880 | } |
| 881 | if (tagcx != src) { |
| 882 | /* |
| 883 | ** This would be caused by a faulty implementation of the client |
| 884 | ** library. |
| 885 | */ |
| 886 | return BadMatch; |
| 887 | } |
| 888 | /* |
| 889 | ** In this case, glXCopyContext is in both GL and X streams, in terms |
| 890 | ** of sequentiality. |
| 891 | */ |
| 892 | if (__glXForceCurrent(cl, tag, &error)) { |
| 893 | /* |
| 894 | ** Do whatever is needed to make sure that all preceding requests |
| 895 | ** in both streams are completed before the copy is executed. |
| 896 | */ |
| 897 | glFinish(); |
| 898 | tagcx->hasUnflushedCommands = GL_FALSE; |
| 899 | } |
| 900 | else { |
| 901 | return error; |
| 902 | } |
| 903 | } |
| 904 | /* |
| 905 | ** Issue copy. The only reason for failure is a bad mask. |
| 906 | */ |
| 907 | if (!(*dst->copy) (dst, src, mask)) { |
| 908 | client->errorValue = mask; |
| 909 | return BadValue; |
| 910 | } |
| 911 | return Success; |
| 912 | } |
| 913 | |
| 914 | enum { |
| 915 | GLX_VIS_CONFIG_UNPAIRED = 18, |
| 916 | GLX_VIS_CONFIG_PAIRED = 22 |
| 917 | }; |
| 918 | |
| 919 | enum { |
| 920 | GLX_VIS_CONFIG_TOTAL = GLX_VIS_CONFIG_UNPAIRED + GLX_VIS_CONFIG_PAIRED |
| 921 | }; |
| 922 | |
| 923 | int |
| 924 | __glXDisp_GetVisualConfigs(__GLXclientState * cl, GLbyte * pc) |
| 925 | { |
| 926 | xGLXGetVisualConfigsReq *req = (xGLXGetVisualConfigsReq *) pc; |
| 927 | ClientPtr client = cl->client; |
| 928 | xGLXGetVisualConfigsReply reply; |
| 929 | __GLXscreen *pGlxScreen; |
| 930 | __GLXconfig *modes; |
| 931 | CARD32 buf[GLX_VIS_CONFIG_TOTAL]; |
| 932 | int p, i, err; |
| 933 | |
| 934 | __GLX_DECLARE_SWAP_VARIABLES; |
| 935 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 936 | |
| 937 | REQUEST_SIZE_MATCH(xGLXGetVisualConfigsReq); |
| 938 | |
| 939 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 940 | return err; |
| 941 | |
| 942 | reply = (xGLXGetVisualConfigsReply) { |
| 943 | .type = X_Reply, |
| 944 | .sequenceNumber = client->sequence, |
| 945 | .length = (pGlxScreen->numVisuals * |
| 946 | __GLX_SIZE_CARD32 * GLX_VIS_CONFIG_TOTAL) >> 2, |
| 947 | .numVisuals = pGlxScreen->numVisuals, |
| 948 | .numProps = GLX_VIS_CONFIG_TOTAL |
| 949 | }; |
| 950 | |
| 951 | if (client->swapped) { |
| 952 | __GLX_SWAP_SHORT(&reply.sequenceNumber); |
| 953 | __GLX_SWAP_INT(&reply.length); |
| 954 | __GLX_SWAP_INT(&reply.numVisuals); |
| 955 | __GLX_SWAP_INT(&reply.numProps); |
| 956 | } |
| 957 | |
| 958 | WriteToClient(client, sz_xGLXGetVisualConfigsReply, &reply); |
| 959 | |
| 960 | for (i = 0; i < pGlxScreen->numVisuals; i++) { |
| 961 | modes = pGlxScreen->visuals[i]; |
| 962 | |
| 963 | p = 0; |
| 964 | buf[p++] = modes->visualID; |
| 965 | buf[p++] = glxConvertToXVisualType(modes->visualType); |
| 966 | buf[p++] = (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE; |
| 967 | |
| 968 | buf[p++] = modes->redBits; |
| 969 | buf[p++] = modes->greenBits; |
| 970 | buf[p++] = modes->blueBits; |
| 971 | buf[p++] = modes->alphaBits; |
| 972 | buf[p++] = modes->accumRedBits; |
| 973 | buf[p++] = modes->accumGreenBits; |
| 974 | buf[p++] = modes->accumBlueBits; |
| 975 | buf[p++] = modes->accumAlphaBits; |
| 976 | |
| 977 | buf[p++] = modes->doubleBufferMode; |
| 978 | buf[p++] = modes->stereoMode; |
| 979 | |
| 980 | buf[p++] = modes->rgbBits; |
| 981 | buf[p++] = modes->depthBits; |
| 982 | buf[p++] = modes->stencilBits; |
| 983 | buf[p++] = modes->numAuxBuffers; |
| 984 | buf[p++] = modes->level; |
| 985 | |
| 986 | assert(p == GLX_VIS_CONFIG_UNPAIRED); |
| 987 | /* |
| 988 | ** Add token/value pairs for extensions. |
| 989 | */ |
| 990 | buf[p++] = GLX_VISUAL_CAVEAT_EXT; |
| 991 | buf[p++] = modes->visualRating; |
| 992 | buf[p++] = GLX_TRANSPARENT_TYPE; |
| 993 | buf[p++] = modes->transparentPixel; |
| 994 | buf[p++] = GLX_TRANSPARENT_RED_VALUE; |
| 995 | buf[p++] = modes->transparentRed; |
| 996 | buf[p++] = GLX_TRANSPARENT_GREEN_VALUE; |
| 997 | buf[p++] = modes->transparentGreen; |
| 998 | buf[p++] = GLX_TRANSPARENT_BLUE_VALUE; |
| 999 | buf[p++] = modes->transparentBlue; |
| 1000 | buf[p++] = GLX_TRANSPARENT_ALPHA_VALUE; |
| 1001 | buf[p++] = modes->transparentAlpha; |
| 1002 | buf[p++] = GLX_TRANSPARENT_INDEX_VALUE; |
| 1003 | buf[p++] = modes->transparentIndex; |
| 1004 | buf[p++] = GLX_SAMPLES_SGIS; |
| 1005 | buf[p++] = modes->samples; |
| 1006 | buf[p++] = GLX_SAMPLE_BUFFERS_SGIS; |
| 1007 | buf[p++] = modes->sampleBuffers; |
| 1008 | /* Add attribute only if its value is not default. */ |
| 1009 | if (modes->sRGBCapable != GL_FALSE) { |
| 1010 | buf[p++] = GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT; |
| 1011 | buf[p++] = modes->sRGBCapable; |
| 1012 | } |
| 1013 | /* Don't add visualSelectGroup (GLX_VISUAL_SELECT_GROUP_SGIX)? |
| 1014 | * Pad the remaining place with zeroes, so that attributes count is constant. */ |
| 1015 | while (p < GLX_VIS_CONFIG_TOTAL) { |
| 1016 | buf[p++] = 0; |
| 1017 | buf[p++] = 0; |
| 1018 | } |
| 1019 | |
| 1020 | assert(p == GLX_VIS_CONFIG_TOTAL); |
| 1021 | if (client->swapped) { |
| 1022 | __GLX_SWAP_INT_ARRAY(buf, p); |
| 1023 | } |
| 1024 | WriteToClient(client, __GLX_SIZE_CARD32 * p, buf); |
| 1025 | } |
| 1026 | return Success; |
| 1027 | } |
| 1028 | |
| 1029 | #define __GLX_TOTAL_FBCONFIG_ATTRIBS (44) |
| 1030 | #define __GLX_FBCONFIG_ATTRIBS_LENGTH (__GLX_TOTAL_FBCONFIG_ATTRIBS * 2) |
| 1031 | /** |
| 1032 | * Send the set of GLXFBConfigs to the client. There is not currently |
| 1033 | * and interface into the driver on the server-side to get GLXFBConfigs, |
| 1034 | * so we "invent" some based on the \c __GLXvisualConfig structures that |
| 1035 | * the driver does supply. |
| 1036 | * |
| 1037 | * The reply format for both \c glXGetFBConfigs and \c glXGetFBConfigsSGIX |
| 1038 | * is the same, so this routine pulls double duty. |
| 1039 | */ |
| 1040 | |
| 1041 | static int |
| 1042 | DoGetFBConfigs(__GLXclientState * cl, unsigned screen) |
| 1043 | { |
| 1044 | ClientPtr client = cl->client; |
| 1045 | xGLXGetFBConfigsReply reply; |
| 1046 | __GLXscreen *pGlxScreen; |
| 1047 | CARD32 buf[__GLX_FBCONFIG_ATTRIBS_LENGTH]; |
| 1048 | int p, err; |
| 1049 | __GLXconfig *modes; |
| 1050 | |
| 1051 | __GLX_DECLARE_SWAP_VARIABLES; |
| 1052 | __GLX_DECLARE_SWAP_ARRAY_VARIABLES; |
| 1053 | |
| 1054 | if (!validGlxScreen(cl->client, screen, &pGlxScreen, &err)) |
| 1055 | return err; |
| 1056 | |
| 1057 | reply = (xGLXGetFBConfigsReply) { |
| 1058 | .type = X_Reply, |
| 1059 | .sequenceNumber = client->sequence, |
| 1060 | .length = __GLX_FBCONFIG_ATTRIBS_LENGTH * pGlxScreen->numFBConfigs, |
| 1061 | .numFBConfigs = pGlxScreen->numFBConfigs, |
| 1062 | .numAttribs = __GLX_TOTAL_FBCONFIG_ATTRIBS |
| 1063 | }; |
| 1064 | |
| 1065 | if (client->swapped) { |
| 1066 | __GLX_SWAP_SHORT(&reply.sequenceNumber); |
| 1067 | __GLX_SWAP_INT(&reply.length); |
| 1068 | __GLX_SWAP_INT(&reply.numFBConfigs); |
| 1069 | __GLX_SWAP_INT(&reply.numAttribs); |
| 1070 | } |
| 1071 | |
| 1072 | WriteToClient(client, sz_xGLXGetFBConfigsReply, &reply); |
| 1073 | |
| 1074 | for (modes = pGlxScreen->fbconfigs; modes != NULL; modes = modes->next) { |
| 1075 | p = 0; |
| 1076 | |
| 1077 | #define WRITE_PAIR(tag,value) \ |
| 1078 | do { buf[p++] = tag ; buf[p++] = value ; } while( 0 ) |
| 1079 | |
| 1080 | WRITE_PAIR(GLX_VISUAL_ID, modes->visualID); |
| 1081 | WRITE_PAIR(GLX_FBCONFIG_ID, modes->fbconfigID); |
| 1082 | WRITE_PAIR(GLX_X_RENDERABLE, GL_TRUE); |
| 1083 | |
| 1084 | WRITE_PAIR(GLX_RGBA, |
| 1085 | (modes->renderType & GLX_RGBA_BIT) ? GL_TRUE : GL_FALSE); |
| 1086 | WRITE_PAIR(GLX_RENDER_TYPE, modes->renderType); |
| 1087 | WRITE_PAIR(GLX_DOUBLEBUFFER, modes->doubleBufferMode); |
| 1088 | WRITE_PAIR(GLX_STEREO, modes->stereoMode); |
| 1089 | |
| 1090 | WRITE_PAIR(GLX_BUFFER_SIZE, modes->rgbBits); |
| 1091 | WRITE_PAIR(GLX_LEVEL, modes->level); |
| 1092 | WRITE_PAIR(GLX_AUX_BUFFERS, modes->numAuxBuffers); |
| 1093 | WRITE_PAIR(GLX_RED_SIZE, modes->redBits); |
| 1094 | WRITE_PAIR(GLX_GREEN_SIZE, modes->greenBits); |
| 1095 | WRITE_PAIR(GLX_BLUE_SIZE, modes->blueBits); |
| 1096 | WRITE_PAIR(GLX_ALPHA_SIZE, modes->alphaBits); |
| 1097 | WRITE_PAIR(GLX_ACCUM_RED_SIZE, modes->accumRedBits); |
| 1098 | WRITE_PAIR(GLX_ACCUM_GREEN_SIZE, modes->accumGreenBits); |
| 1099 | WRITE_PAIR(GLX_ACCUM_BLUE_SIZE, modes->accumBlueBits); |
| 1100 | WRITE_PAIR(GLX_ACCUM_ALPHA_SIZE, modes->accumAlphaBits); |
| 1101 | WRITE_PAIR(GLX_DEPTH_SIZE, modes->depthBits); |
| 1102 | WRITE_PAIR(GLX_STENCIL_SIZE, modes->stencilBits); |
| 1103 | WRITE_PAIR(GLX_X_VISUAL_TYPE, modes->visualType); |
| 1104 | WRITE_PAIR(GLX_CONFIG_CAVEAT, modes->visualRating); |
| 1105 | WRITE_PAIR(GLX_TRANSPARENT_TYPE, modes->transparentPixel); |
| 1106 | WRITE_PAIR(GLX_TRANSPARENT_RED_VALUE, modes->transparentRed); |
| 1107 | WRITE_PAIR(GLX_TRANSPARENT_GREEN_VALUE, modes->transparentGreen); |
| 1108 | WRITE_PAIR(GLX_TRANSPARENT_BLUE_VALUE, modes->transparentBlue); |
| 1109 | WRITE_PAIR(GLX_TRANSPARENT_ALPHA_VALUE, modes->transparentAlpha); |
| 1110 | WRITE_PAIR(GLX_TRANSPARENT_INDEX_VALUE, modes->transparentIndex); |
| 1111 | WRITE_PAIR(GLX_SWAP_METHOD_OML, modes->swapMethod); |
| 1112 | WRITE_PAIR(GLX_SAMPLES_SGIS, modes->samples); |
| 1113 | WRITE_PAIR(GLX_SAMPLE_BUFFERS_SGIS, modes->sampleBuffers); |
| 1114 | WRITE_PAIR(GLX_VISUAL_SELECT_GROUP_SGIX, modes->visualSelectGroup); |
| 1115 | WRITE_PAIR(GLX_DRAWABLE_TYPE, modes->drawableType); |
| 1116 | WRITE_PAIR(GLX_BIND_TO_TEXTURE_RGB_EXT, modes->bindToTextureRgb); |
| 1117 | WRITE_PAIR(GLX_BIND_TO_TEXTURE_RGBA_EXT, modes->bindToTextureRgba); |
| 1118 | WRITE_PAIR(GLX_BIND_TO_MIPMAP_TEXTURE_EXT, modes->bindToMipmapTexture); |
| 1119 | WRITE_PAIR(GLX_BIND_TO_TEXTURE_TARGETS_EXT, |
| 1120 | modes->bindToTextureTargets); |
| 1121 | /* can't report honestly until mesa is fixed */ |
| 1122 | WRITE_PAIR(GLX_Y_INVERTED_EXT, GLX_DONT_CARE); |
| 1123 | if (modes->drawableType & GLX_PBUFFER_BIT) { |
| 1124 | WRITE_PAIR(GLX_MAX_PBUFFER_WIDTH, modes->maxPbufferWidth); |
| 1125 | WRITE_PAIR(GLX_MAX_PBUFFER_HEIGHT, modes->maxPbufferHeight); |
| 1126 | WRITE_PAIR(GLX_MAX_PBUFFER_PIXELS, modes->maxPbufferPixels); |
| 1127 | WRITE_PAIR(GLX_OPTIMAL_PBUFFER_WIDTH_SGIX, |
| 1128 | modes->optimalPbufferWidth); |
| 1129 | WRITE_PAIR(GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX, |
| 1130 | modes->optimalPbufferHeight); |
| 1131 | } |
| 1132 | /* Add attribute only if its value is not default. */ |
| 1133 | if (modes->sRGBCapable != GL_FALSE) { |
| 1134 | WRITE_PAIR(GLX_FRAMEBUFFER_SRGB_CAPABLE_EXT, modes->sRGBCapable); |
| 1135 | } |
| 1136 | /* Pad the remaining place with zeroes, so that attributes count is constant. */ |
| 1137 | while (p < __GLX_FBCONFIG_ATTRIBS_LENGTH) { |
| 1138 | WRITE_PAIR(0, 0); |
| 1139 | } |
| 1140 | assert(p == __GLX_FBCONFIG_ATTRIBS_LENGTH); |
| 1141 | |
| 1142 | if (client->swapped) { |
| 1143 | __GLX_SWAP_INT_ARRAY(buf, __GLX_FBCONFIG_ATTRIBS_LENGTH); |
| 1144 | } |
| 1145 | WriteToClient(client, __GLX_SIZE_CARD32 * __GLX_FBCONFIG_ATTRIBS_LENGTH, |
| 1146 | (char *) buf); |
| 1147 | } |
| 1148 | return Success; |
| 1149 | } |
| 1150 | |
| 1151 | int |
| 1152 | __glXDisp_GetFBConfigs(__GLXclientState * cl, GLbyte * pc) |
| 1153 | { |
| 1154 | ClientPtr client = cl->client; |
| 1155 | xGLXGetFBConfigsReq *req = (xGLXGetFBConfigsReq *) pc; |
| 1156 | |
| 1157 | REQUEST_SIZE_MATCH(xGLXGetFBConfigsReq); |
| 1158 | return DoGetFBConfigs(cl, req->screen); |
| 1159 | } |
| 1160 | |
| 1161 | int |
| 1162 | __glXDisp_GetFBConfigsSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1163 | { |
| 1164 | ClientPtr client = cl->client; |
| 1165 | xGLXGetFBConfigsSGIXReq *req = (xGLXGetFBConfigsSGIXReq *) pc; |
| 1166 | |
| 1167 | /* work around mesa bug, don't use REQUEST_SIZE_MATCH */ |
| 1168 | REQUEST_AT_LEAST_SIZE(xGLXGetFBConfigsSGIXReq); |
| 1169 | return DoGetFBConfigs(cl, req->screen); |
| 1170 | } |
| 1171 | |
| 1172 | GLboolean |
| 1173 | __glXDrawableInit(__GLXdrawable * drawable, |
| 1174 | __GLXscreen * screen, DrawablePtr pDraw, int type, |
| 1175 | XID drawId, __GLXconfig * config) |
| 1176 | { |
| 1177 | drawable->pDraw = pDraw; |
| 1178 | drawable->type = type; |
| 1179 | drawable->drawId = drawId; |
| 1180 | drawable->config = config; |
| 1181 | drawable->eventMask = 0; |
| 1182 | |
| 1183 | return GL_TRUE; |
| 1184 | } |
| 1185 | |
| 1186 | void |
| 1187 | __glXDrawableRelease(__GLXdrawable * drawable) |
| 1188 | { |
| 1189 | } |
| 1190 | |
| 1191 | static int |
| 1192 | DoCreateGLXDrawable(ClientPtr client, __GLXscreen * pGlxScreen, |
| 1193 | __GLXconfig * config, DrawablePtr pDraw, XID drawableId, |
| 1194 | XID glxDrawableId, int type) |
| 1195 | { |
| 1196 | __GLXdrawable *pGlxDraw; |
| 1197 | |
| 1198 | if (pGlxScreen->pScreen != pDraw->pScreen) |
| 1199 | return BadMatch; |
| 1200 | |
| 1201 | pGlxDraw = pGlxScreen->createDrawable(client, pGlxScreen, pDraw, |
| 1202 | drawableId, type, |
| 1203 | glxDrawableId, config); |
| 1204 | if (pGlxDraw == NULL) |
| 1205 | return BadAlloc; |
| 1206 | |
| 1207 | if (!AddResource(glxDrawableId, __glXDrawableRes, pGlxDraw)) { |
| 1208 | pGlxDraw->destroy(pGlxDraw); |
| 1209 | return BadAlloc; |
| 1210 | } |
| 1211 | |
| 1212 | /* |
| 1213 | * Windows aren't refcounted, so track both the X and the GLX window |
| 1214 | * so we get called regardless of destruction order. |
| 1215 | */ |
| 1216 | if (drawableId != glxDrawableId && type == GLX_DRAWABLE_WINDOW && |
| 1217 | !AddResource(pDraw->id, __glXDrawableRes, pGlxDraw)) { |
| 1218 | pGlxDraw->destroy(pGlxDraw); |
| 1219 | return BadAlloc; |
| 1220 | } |
| 1221 | |
| 1222 | return Success; |
| 1223 | } |
| 1224 | |
| 1225 | static int |
| 1226 | DoCreateGLXPixmap(ClientPtr client, __GLXscreen * pGlxScreen, |
| 1227 | __GLXconfig * config, XID drawableId, XID glxDrawableId) |
| 1228 | { |
| 1229 | DrawablePtr pDraw; |
| 1230 | int err; |
| 1231 | |
| 1232 | LEGAL_NEW_RESOURCE(glxDrawableId, client); |
| 1233 | |
| 1234 | err = dixLookupDrawable(&pDraw, drawableId, client, 0, DixAddAccess); |
| 1235 | if (err != Success) { |
| 1236 | client->errorValue = drawableId; |
| 1237 | return err; |
| 1238 | } |
| 1239 | if (pDraw->type != DRAWABLE_PIXMAP) { |
| 1240 | client->errorValue = drawableId; |
| 1241 | return BadPixmap; |
| 1242 | } |
| 1243 | |
| 1244 | err = DoCreateGLXDrawable(client, pGlxScreen, config, pDraw, drawableId, |
| 1245 | glxDrawableId, GLX_DRAWABLE_PIXMAP); |
| 1246 | |
| 1247 | if (err == Success) |
| 1248 | ((PixmapPtr) pDraw)->refcnt++; |
| 1249 | |
| 1250 | return err; |
| 1251 | } |
| 1252 | |
| 1253 | static void |
| 1254 | determineTextureTarget(ClientPtr client, XID glxDrawableID, |
| 1255 | CARD32 *attribs, CARD32 numAttribs) |
| 1256 | { |
| 1257 | GLenum target = 0; |
| 1258 | GLenum format = 0; |
| 1259 | int i, err; |
| 1260 | __GLXdrawable *pGlxDraw; |
| 1261 | |
| 1262 | if (!validGlxDrawable(client, glxDrawableID, GLX_DRAWABLE_PIXMAP, |
| 1263 | DixWriteAccess, &pGlxDraw, &err)) |
| 1264 | /* We just added it in CreatePixmap, so we should never get here. */ |
| 1265 | return; |
| 1266 | |
| 1267 | for (i = 0; i < numAttribs; i++) { |
| 1268 | if (attribs[2 * i] == GLX_TEXTURE_TARGET_EXT) { |
| 1269 | switch (attribs[2 * i + 1]) { |
| 1270 | case GLX_TEXTURE_2D_EXT: |
| 1271 | target = GL_TEXTURE_2D; |
| 1272 | break; |
| 1273 | case GLX_TEXTURE_RECTANGLE_EXT: |
| 1274 | target = GL_TEXTURE_RECTANGLE_ARB; |
| 1275 | break; |
| 1276 | } |
| 1277 | } |
| 1278 | |
| 1279 | if (attribs[2 * i] == GLX_TEXTURE_FORMAT_EXT) |
| 1280 | format = attribs[2 * i + 1]; |
| 1281 | } |
| 1282 | |
| 1283 | if (!target) { |
| 1284 | int w = pGlxDraw->pDraw->width, h = pGlxDraw->pDraw->height; |
| 1285 | |
| 1286 | if (h & (h - 1) || w & (w - 1)) |
| 1287 | target = GL_TEXTURE_RECTANGLE_ARB; |
| 1288 | else |
| 1289 | target = GL_TEXTURE_2D; |
| 1290 | } |
| 1291 | |
| 1292 | pGlxDraw->target = target; |
| 1293 | pGlxDraw->format = format; |
| 1294 | } |
| 1295 | |
| 1296 | int |
| 1297 | __glXDisp_CreateGLXPixmap(__GLXclientState * cl, GLbyte * pc) |
| 1298 | { |
| 1299 | ClientPtr client = cl->client; |
| 1300 | xGLXCreateGLXPixmapReq *req = (xGLXCreateGLXPixmapReq *) pc; |
| 1301 | __GLXconfig *config; |
| 1302 | __GLXscreen *pGlxScreen; |
| 1303 | int err; |
| 1304 | |
| 1305 | REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapReq); |
| 1306 | |
| 1307 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 1308 | return err; |
| 1309 | if (!validGlxVisual(cl->client, pGlxScreen, req->visual, &config, &err)) |
| 1310 | return err; |
| 1311 | |
| 1312 | return DoCreateGLXPixmap(cl->client, pGlxScreen, config, |
| 1313 | req->pixmap, req->glxpixmap); |
| 1314 | } |
| 1315 | |
| 1316 | int |
| 1317 | __glXDisp_CreatePixmap(__GLXclientState * cl, GLbyte * pc) |
| 1318 | { |
| 1319 | ClientPtr client = cl->client; |
| 1320 | xGLXCreatePixmapReq *req = (xGLXCreatePixmapReq *) pc; |
| 1321 | __GLXconfig *config; |
| 1322 | __GLXscreen *pGlxScreen; |
| 1323 | int err; |
| 1324 | |
| 1325 | REQUEST_AT_LEAST_SIZE(xGLXCreatePixmapReq); |
| 1326 | if (req->numAttribs > (UINT32_MAX >> 3)) { |
| 1327 | client->errorValue = req->numAttribs; |
| 1328 | return BadValue; |
| 1329 | } |
| 1330 | REQUEST_FIXED_SIZE(xGLXCreatePixmapReq, req->numAttribs << 3); |
| 1331 | |
| 1332 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 1333 | return err; |
| 1334 | if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) |
| 1335 | return err; |
| 1336 | |
| 1337 | err = DoCreateGLXPixmap(cl->client, pGlxScreen, config, |
| 1338 | req->pixmap, req->glxpixmap); |
| 1339 | if (err != Success) |
| 1340 | return err; |
| 1341 | |
| 1342 | determineTextureTarget(cl->client, req->glxpixmap, |
| 1343 | (CARD32 *) (req + 1), req->numAttribs); |
| 1344 | |
| 1345 | return Success; |
| 1346 | } |
| 1347 | |
| 1348 | int |
| 1349 | __glXDisp_CreateGLXPixmapWithConfigSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1350 | { |
| 1351 | ClientPtr client = cl->client; |
| 1352 | xGLXCreateGLXPixmapWithConfigSGIXReq *req = |
| 1353 | (xGLXCreateGLXPixmapWithConfigSGIXReq *) pc; |
| 1354 | __GLXconfig *config; |
| 1355 | __GLXscreen *pGlxScreen; |
| 1356 | int err; |
| 1357 | |
| 1358 | REQUEST_SIZE_MATCH(xGLXCreateGLXPixmapWithConfigSGIXReq); |
| 1359 | |
| 1360 | if (!validGlxScreen(cl->client, req->screen, &pGlxScreen, &err)) |
| 1361 | return err; |
| 1362 | if (!validGlxFBConfig(cl->client, pGlxScreen, req->fbconfig, &config, &err)) |
| 1363 | return err; |
| 1364 | |
| 1365 | return DoCreateGLXPixmap(cl->client, pGlxScreen, |
| 1366 | config, req->pixmap, req->glxpixmap); |
| 1367 | } |
| 1368 | |
| 1369 | static int |
| 1370 | DoDestroyDrawable(__GLXclientState * cl, XID glxdrawable, int type) |
| 1371 | { |
| 1372 | __GLXdrawable *pGlxDraw; |
| 1373 | int err; |
| 1374 | |
| 1375 | if (!validGlxDrawable(cl->client, glxdrawable, type, |
| 1376 | DixDestroyAccess, &pGlxDraw, &err)) |
| 1377 | return err; |
| 1378 | |
| 1379 | FreeResource(glxdrawable, FALSE); |
| 1380 | |
| 1381 | return Success; |
| 1382 | } |
| 1383 | |
| 1384 | int |
| 1385 | __glXDisp_DestroyGLXPixmap(__GLXclientState * cl, GLbyte * pc) |
| 1386 | { |
| 1387 | ClientPtr client = cl->client; |
| 1388 | xGLXDestroyGLXPixmapReq *req = (xGLXDestroyGLXPixmapReq *) pc; |
| 1389 | |
| 1390 | REQUEST_SIZE_MATCH(xGLXDestroyGLXPixmapReq); |
| 1391 | |
| 1392 | return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); |
| 1393 | } |
| 1394 | |
| 1395 | int |
| 1396 | __glXDisp_DestroyPixmap(__GLXclientState * cl, GLbyte * pc) |
| 1397 | { |
| 1398 | ClientPtr client = cl->client; |
| 1399 | xGLXDestroyPixmapReq *req = (xGLXDestroyPixmapReq *) pc; |
| 1400 | |
| 1401 | /* should be REQUEST_SIZE_MATCH, but mesa's glXDestroyPixmap used to set |
| 1402 | * length to 3 instead of 2 */ |
| 1403 | REQUEST_AT_LEAST_SIZE(xGLXDestroyPixmapReq); |
| 1404 | |
| 1405 | return DoDestroyDrawable(cl, req->glxpixmap, GLX_DRAWABLE_PIXMAP); |
| 1406 | } |
| 1407 | |
| 1408 | static int |
| 1409 | DoCreatePbuffer(ClientPtr client, int screenNum, XID fbconfigId, |
| 1410 | int width, int height, XID glxDrawableId) |
| 1411 | { |
| 1412 | __GLXconfig *config; |
| 1413 | __GLXscreen *pGlxScreen; |
| 1414 | PixmapPtr pPixmap; |
| 1415 | int err; |
| 1416 | |
| 1417 | LEGAL_NEW_RESOURCE(glxDrawableId, client); |
| 1418 | |
| 1419 | if (!validGlxScreen(client, screenNum, &pGlxScreen, &err)) |
| 1420 | return err; |
| 1421 | if (!validGlxFBConfig(client, pGlxScreen, fbconfigId, &config, &err)) |
| 1422 | return err; |
| 1423 | |
| 1424 | __glXenterServer(GL_FALSE); |
| 1425 | pPixmap = (*pGlxScreen->pScreen->CreatePixmap) (pGlxScreen->pScreen, |
| 1426 | width, height, |
| 1427 | config->rgbBits, 0); |
| 1428 | __glXleaveServer(GL_FALSE); |
| 1429 | if (!pPixmap) |
| 1430 | return BadAlloc; |
| 1431 | |
| 1432 | /* Assign the pixmap the same id as the pbuffer and add it as a |
| 1433 | * resource so it and the DRI2 drawable will be reclaimed when the |
| 1434 | * pbuffer is destroyed. */ |
| 1435 | pPixmap->drawable.id = glxDrawableId; |
| 1436 | if (!AddResource(pPixmap->drawable.id, RT_PIXMAP, pPixmap)) |
| 1437 | return BadAlloc; |
| 1438 | |
| 1439 | return DoCreateGLXDrawable(client, pGlxScreen, config, &pPixmap->drawable, |
| 1440 | glxDrawableId, glxDrawableId, |
| 1441 | GLX_DRAWABLE_PBUFFER); |
| 1442 | } |
| 1443 | |
| 1444 | int |
| 1445 | __glXDisp_CreatePbuffer(__GLXclientState * cl, GLbyte * pc) |
| 1446 | { |
| 1447 | ClientPtr client = cl->client; |
| 1448 | xGLXCreatePbufferReq *req = (xGLXCreatePbufferReq *) pc; |
| 1449 | CARD32 *attrs; |
| 1450 | int width, height, i; |
| 1451 | |
| 1452 | REQUEST_AT_LEAST_SIZE(xGLXCreatePbufferReq); |
| 1453 | if (req->numAttribs > (UINT32_MAX >> 3)) { |
| 1454 | client->errorValue = req->numAttribs; |
| 1455 | return BadValue; |
| 1456 | } |
| 1457 | REQUEST_FIXED_SIZE(xGLXCreatePbufferReq, req->numAttribs << 3); |
| 1458 | |
| 1459 | attrs = (CARD32 *) (req + 1); |
| 1460 | width = 0; |
| 1461 | height = 0; |
| 1462 | |
| 1463 | for (i = 0; i < req->numAttribs; i++) { |
| 1464 | switch (attrs[i * 2]) { |
| 1465 | case GLX_PBUFFER_WIDTH: |
| 1466 | width = attrs[i * 2 + 1]; |
| 1467 | break; |
| 1468 | case GLX_PBUFFER_HEIGHT: |
| 1469 | height = attrs[i * 2 + 1]; |
| 1470 | break; |
| 1471 | case GLX_LARGEST_PBUFFER: |
| 1472 | /* FIXME: huh... */ |
| 1473 | break; |
| 1474 | } |
| 1475 | } |
| 1476 | |
| 1477 | return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, |
| 1478 | width, height, req->pbuffer); |
| 1479 | } |
| 1480 | |
| 1481 | int |
| 1482 | __glXDisp_CreateGLXPbufferSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1483 | { |
| 1484 | ClientPtr client = cl->client; |
| 1485 | xGLXCreateGLXPbufferSGIXReq *req = (xGLXCreateGLXPbufferSGIXReq *) pc; |
| 1486 | |
| 1487 | REQUEST_AT_LEAST_SIZE(xGLXCreateGLXPbufferSGIXReq); |
| 1488 | |
| 1489 | /* |
| 1490 | * We should really handle attributes correctly, but this extension |
| 1491 | * is so rare I have difficulty caring. |
| 1492 | */ |
| 1493 | return DoCreatePbuffer(cl->client, req->screen, req->fbconfig, |
| 1494 | req->width, req->height, req->pbuffer); |
| 1495 | } |
| 1496 | |
| 1497 | int |
| 1498 | __glXDisp_DestroyPbuffer(__GLXclientState * cl, GLbyte * pc) |
| 1499 | { |
| 1500 | ClientPtr client = cl->client; |
| 1501 | xGLXDestroyPbufferReq *req = (xGLXDestroyPbufferReq *) pc; |
| 1502 | |
| 1503 | REQUEST_SIZE_MATCH(xGLXDestroyPbufferReq); |
| 1504 | |
| 1505 | return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); |
| 1506 | } |
| 1507 | |
| 1508 | int |
| 1509 | __glXDisp_DestroyGLXPbufferSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1510 | { |
| 1511 | ClientPtr client = cl->client; |
| 1512 | xGLXDestroyGLXPbufferSGIXReq *req = (xGLXDestroyGLXPbufferSGIXReq *) pc; |
| 1513 | |
| 1514 | REQUEST_SIZE_MATCH(xGLXDestroyGLXPbufferSGIXReq); |
| 1515 | |
| 1516 | return DoDestroyDrawable(cl, req->pbuffer, GLX_DRAWABLE_PBUFFER); |
| 1517 | } |
| 1518 | |
| 1519 | static int |
| 1520 | DoChangeDrawableAttributes(ClientPtr client, XID glxdrawable, |
| 1521 | int numAttribs, CARD32 *attribs) |
| 1522 | { |
| 1523 | __GLXdrawable *pGlxDraw; |
| 1524 | int i, err; |
| 1525 | |
| 1526 | if (!validGlxDrawable(client, glxdrawable, GLX_DRAWABLE_ANY, |
| 1527 | DixSetAttrAccess, &pGlxDraw, &err)) |
| 1528 | return err; |
| 1529 | |
| 1530 | for (i = 0; i < numAttribs; i++) { |
| 1531 | switch (attribs[i * 2]) { |
| 1532 | case GLX_EVENT_MASK: |
| 1533 | /* All we do is to record the event mask so we can send it |
| 1534 | * back when queried. We never actually clobber the |
| 1535 | * pbuffers, so we never need to send out the event. */ |
| 1536 | pGlxDraw->eventMask = attribs[i * 2 + 1]; |
| 1537 | break; |
| 1538 | } |
| 1539 | } |
| 1540 | |
| 1541 | return Success; |
| 1542 | } |
| 1543 | |
| 1544 | int |
| 1545 | __glXDisp_ChangeDrawableAttributes(__GLXclientState * cl, GLbyte * pc) |
| 1546 | { |
| 1547 | ClientPtr client = cl->client; |
| 1548 | xGLXChangeDrawableAttributesReq *req = |
| 1549 | (xGLXChangeDrawableAttributesReq *) pc; |
| 1550 | |
| 1551 | REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesReq); |
| 1552 | if (req->numAttribs > (UINT32_MAX >> 3)) { |
| 1553 | client->errorValue = req->numAttribs; |
| 1554 | return BadValue; |
| 1555 | } |
| 1556 | #if 0 |
| 1557 | /* mesa sends an additional 8 bytes */ |
| 1558 | REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesReq, req->numAttribs << 3); |
| 1559 | #else |
| 1560 | if (((sizeof(xGLXChangeDrawableAttributesReq) + |
| 1561 | (req->numAttribs << 3)) >> 2) < client->req_len) |
| 1562 | return BadLength; |
| 1563 | #endif |
| 1564 | |
| 1565 | return DoChangeDrawableAttributes(cl->client, req->drawable, |
| 1566 | req->numAttribs, (CARD32 *) (req + 1)); |
| 1567 | } |
| 1568 | |
| 1569 | int |
| 1570 | __glXDisp_ChangeDrawableAttributesSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1571 | { |
| 1572 | ClientPtr client = cl->client; |
| 1573 | xGLXChangeDrawableAttributesSGIXReq *req = |
| 1574 | (xGLXChangeDrawableAttributesSGIXReq *) pc; |
| 1575 | |
| 1576 | REQUEST_AT_LEAST_SIZE(xGLXChangeDrawableAttributesSGIXReq); |
| 1577 | if (req->numAttribs > (UINT32_MAX >> 3)) { |
| 1578 | client->errorValue = req->numAttribs; |
| 1579 | return BadValue; |
| 1580 | } |
| 1581 | REQUEST_FIXED_SIZE(xGLXChangeDrawableAttributesSGIXReq, |
| 1582 | req->numAttribs << 3); |
| 1583 | |
| 1584 | return DoChangeDrawableAttributes(cl->client, req->drawable, |
| 1585 | req->numAttribs, (CARD32 *) (req + 1)); |
| 1586 | } |
| 1587 | |
| 1588 | int |
| 1589 | __glXDisp_CreateWindow(__GLXclientState * cl, GLbyte * pc) |
| 1590 | { |
| 1591 | xGLXCreateWindowReq *req = (xGLXCreateWindowReq *) pc; |
| 1592 | __GLXconfig *config; |
| 1593 | __GLXscreen *pGlxScreen; |
| 1594 | ClientPtr client = cl->client; |
| 1595 | DrawablePtr pDraw; |
| 1596 | int err; |
| 1597 | |
| 1598 | REQUEST_AT_LEAST_SIZE(xGLXCreateWindowReq); |
| 1599 | if (req->numAttribs > (UINT32_MAX >> 3)) { |
| 1600 | client->errorValue = req->numAttribs; |
| 1601 | return BadValue; |
| 1602 | } |
| 1603 | REQUEST_FIXED_SIZE(xGLXCreateWindowReq, req->numAttribs << 3); |
| 1604 | |
| 1605 | LEGAL_NEW_RESOURCE(req->glxwindow, client); |
| 1606 | |
| 1607 | if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) |
| 1608 | return err; |
| 1609 | if (!validGlxFBConfig(client, pGlxScreen, req->fbconfig, &config, &err)) |
| 1610 | return err; |
| 1611 | |
| 1612 | err = dixLookupDrawable(&pDraw, req->window, client, 0, DixAddAccess); |
| 1613 | if (err != Success || pDraw->type != DRAWABLE_WINDOW) { |
| 1614 | client->errorValue = req->window; |
| 1615 | return BadWindow; |
| 1616 | } |
| 1617 | |
| 1618 | if (!validGlxFBConfigForWindow(client, config, pDraw, &err)) |
| 1619 | return err; |
| 1620 | |
| 1621 | return DoCreateGLXDrawable(client, pGlxScreen, config, |
| 1622 | pDraw, req->window, |
| 1623 | req->glxwindow, GLX_DRAWABLE_WINDOW); |
| 1624 | } |
| 1625 | |
| 1626 | int |
| 1627 | __glXDisp_DestroyWindow(__GLXclientState * cl, GLbyte * pc) |
| 1628 | { |
| 1629 | ClientPtr client = cl->client; |
| 1630 | xGLXDestroyWindowReq *req = (xGLXDestroyWindowReq *) pc; |
| 1631 | |
| 1632 | /* mesa's glXDestroyWindow used to set length to 3 instead of 2 */ |
| 1633 | REQUEST_AT_LEAST_SIZE(xGLXDestroyWindowReq); |
| 1634 | |
| 1635 | return DoDestroyDrawable(cl, req->glxwindow, GLX_DRAWABLE_WINDOW); |
| 1636 | } |
| 1637 | |
| 1638 | /*****************************************************************************/ |
| 1639 | |
| 1640 | /* |
| 1641 | ** NOTE: There is no portable implementation for swap buffers as of |
| 1642 | ** this time that is of value. Consequently, this code must be |
| 1643 | ** implemented by somebody other than SGI. |
| 1644 | */ |
| 1645 | int |
| 1646 | __glXDisp_SwapBuffers(__GLXclientState * cl, GLbyte * pc) |
| 1647 | { |
| 1648 | ClientPtr client = cl->client; |
| 1649 | xGLXSwapBuffersReq *req = (xGLXSwapBuffersReq *) pc; |
| 1650 | GLXContextTag tag; |
| 1651 | XID drawId; |
| 1652 | __GLXcontext *glxc = NULL; |
| 1653 | __GLXdrawable *pGlxDraw; |
| 1654 | int error; |
| 1655 | |
| 1656 | REQUEST_SIZE_MATCH(xGLXSwapBuffersReq); |
| 1657 | |
| 1658 | tag = req->contextTag; |
| 1659 | drawId = req->drawable; |
| 1660 | if (tag) { |
| 1661 | glxc = __glXLookupContextByTag(cl, tag); |
| 1662 | if (!glxc) { |
| 1663 | return __glXError(GLXBadContextTag); |
| 1664 | } |
| 1665 | /* |
| 1666 | ** The calling thread is swapping its current drawable. In this case, |
| 1667 | ** glxSwapBuffers is in both GL and X streams, in terms of |
| 1668 | ** sequentiality. |
| 1669 | */ |
| 1670 | if (__glXForceCurrent(cl, tag, &error)) { |
| 1671 | /* |
| 1672 | ** Do whatever is needed to make sure that all preceding requests |
| 1673 | ** in both streams are completed before the swap is executed. |
| 1674 | */ |
| 1675 | glFinish(); |
| 1676 | glxc->hasUnflushedCommands = GL_FALSE; |
| 1677 | } |
| 1678 | else { |
| 1679 | return error; |
| 1680 | } |
| 1681 | } |
| 1682 | |
| 1683 | pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); |
| 1684 | if (pGlxDraw == NULL) |
| 1685 | return error; |
| 1686 | |
| 1687 | if (pGlxDraw->type == DRAWABLE_WINDOW && |
| 1688 | (*pGlxDraw->swapBuffers) (cl->client, pGlxDraw) == GL_FALSE) |
| 1689 | return __glXError(GLXBadDrawable); |
| 1690 | |
| 1691 | return Success; |
| 1692 | } |
| 1693 | |
| 1694 | static int |
| 1695 | DoQueryContext(__GLXclientState * cl, GLXContextID gcId) |
| 1696 | { |
| 1697 | ClientPtr client = cl->client; |
| 1698 | __GLXcontext *ctx; |
| 1699 | xGLXQueryContextInfoEXTReply reply; |
| 1700 | int nProps = 3; |
| 1701 | int sendBuf[nProps * 2]; |
| 1702 | int nReplyBytes; |
| 1703 | int err; |
| 1704 | |
| 1705 | if (!validGlxContext(cl->client, gcId, DixReadAccess, &ctx, &err)) |
| 1706 | return err; |
| 1707 | |
| 1708 | reply = (xGLXQueryContextInfoEXTReply) { |
| 1709 | .type = X_Reply, |
| 1710 | .sequenceNumber = client->sequence, |
| 1711 | .length = nProps << 1, |
| 1712 | .n = nProps |
| 1713 | }; |
| 1714 | |
| 1715 | nReplyBytes = reply.length << 2; |
| 1716 | sendBuf[0] = GLX_SHARE_CONTEXT_EXT; |
| 1717 | sendBuf[1] = (int) (ctx->share_id); |
| 1718 | sendBuf[2] = GLX_VISUAL_ID_EXT; |
| 1719 | sendBuf[3] = (int) (ctx->config->visualID); |
| 1720 | sendBuf[4] = GLX_SCREEN_EXT; |
| 1721 | sendBuf[5] = (int) (ctx->pGlxScreen->pScreen->myNum); |
| 1722 | |
| 1723 | if (client->swapped) { |
| 1724 | __glXSwapQueryContextInfoEXTReply(client, &reply, sendBuf); |
| 1725 | } |
| 1726 | else { |
| 1727 | WriteToClient(client, sz_xGLXQueryContextInfoEXTReply, &reply); |
| 1728 | WriteToClient(client, nReplyBytes, sendBuf); |
| 1729 | } |
| 1730 | |
| 1731 | return Success; |
| 1732 | } |
| 1733 | |
| 1734 | int |
| 1735 | __glXDisp_QueryContextInfoEXT(__GLXclientState * cl, GLbyte * pc) |
| 1736 | { |
| 1737 | ClientPtr client = cl->client; |
| 1738 | xGLXQueryContextInfoEXTReq *req = (xGLXQueryContextInfoEXTReq *) pc; |
| 1739 | |
| 1740 | REQUEST_SIZE_MATCH(xGLXQueryContextInfoEXTReq); |
| 1741 | |
| 1742 | return DoQueryContext(cl, req->context); |
| 1743 | } |
| 1744 | |
| 1745 | int |
| 1746 | __glXDisp_QueryContext(__GLXclientState * cl, GLbyte * pc) |
| 1747 | { |
| 1748 | ClientPtr client = cl->client; |
| 1749 | xGLXQueryContextReq *req = (xGLXQueryContextReq *) pc; |
| 1750 | |
| 1751 | REQUEST_SIZE_MATCH(xGLXQueryContextReq); |
| 1752 | |
| 1753 | return DoQueryContext(cl, req->context); |
| 1754 | } |
| 1755 | |
| 1756 | int |
| 1757 | __glXDisp_BindTexImageEXT(__GLXclientState * cl, GLbyte * pc) |
| 1758 | { |
| 1759 | xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; |
| 1760 | ClientPtr client = cl->client; |
| 1761 | __GLXcontext *context; |
| 1762 | __GLXdrawable *pGlxDraw; |
| 1763 | GLXDrawable drawId; |
| 1764 | int buffer; |
| 1765 | int error; |
| 1766 | CARD32 num_attribs; |
| 1767 | |
| 1768 | if ((sizeof(xGLXVendorPrivateReq) + 12) >> 2 > client->req_len) |
| 1769 | return BadLength; |
| 1770 | |
| 1771 | pc += __GLX_VENDPRIV_HDR_SIZE; |
| 1772 | |
| 1773 | drawId = *((CARD32 *) (pc)); |
| 1774 | buffer = *((INT32 *) (pc + 4)); |
| 1775 | num_attribs = *((CARD32 *) (pc + 8)); |
| 1776 | if (num_attribs > (UINT32_MAX >> 3)) { |
| 1777 | client->errorValue = num_attribs; |
| 1778 | return BadValue; |
| 1779 | } |
| 1780 | REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 12 + (num_attribs << 3)); |
| 1781 | |
| 1782 | if (buffer != GLX_FRONT_LEFT_EXT) |
| 1783 | return __glXError(GLXBadPixmap); |
| 1784 | |
| 1785 | context = __glXForceCurrent(cl, req->contextTag, &error); |
| 1786 | if (!context) |
| 1787 | return error; |
| 1788 | |
| 1789 | if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, |
| 1790 | DixReadAccess, &pGlxDraw, &error)) |
| 1791 | return error; |
| 1792 | |
| 1793 | if (!context->textureFromPixmap) |
| 1794 | return __glXError(GLXUnsupportedPrivateRequest); |
| 1795 | |
| 1796 | return context->textureFromPixmap->bindTexImage(context, buffer, pGlxDraw); |
| 1797 | } |
| 1798 | |
| 1799 | int |
| 1800 | __glXDisp_ReleaseTexImageEXT(__GLXclientState * cl, GLbyte * pc) |
| 1801 | { |
| 1802 | xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; |
| 1803 | ClientPtr client = cl->client; |
| 1804 | __GLXdrawable *pGlxDraw; |
| 1805 | __GLXcontext *context; |
| 1806 | GLXDrawable drawId; |
| 1807 | int buffer; |
| 1808 | int error; |
| 1809 | |
| 1810 | REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 8); |
| 1811 | |
| 1812 | pc += __GLX_VENDPRIV_HDR_SIZE; |
| 1813 | |
| 1814 | drawId = *((CARD32 *) (pc)); |
| 1815 | buffer = *((INT32 *) (pc + 4)); |
| 1816 | |
| 1817 | context = __glXForceCurrent(cl, req->contextTag, &error); |
| 1818 | if (!context) |
| 1819 | return error; |
| 1820 | |
| 1821 | if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_PIXMAP, |
| 1822 | DixReadAccess, &pGlxDraw, &error)) |
| 1823 | return error; |
| 1824 | |
| 1825 | if (!context->textureFromPixmap) |
| 1826 | return __glXError(GLXUnsupportedPrivateRequest); |
| 1827 | |
| 1828 | return context->textureFromPixmap->releaseTexImage(context, |
| 1829 | buffer, pGlxDraw); |
| 1830 | } |
| 1831 | |
| 1832 | int |
| 1833 | __glXDisp_CopySubBufferMESA(__GLXclientState * cl, GLbyte * pc) |
| 1834 | { |
| 1835 | xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; |
| 1836 | GLXContextTag tag = req->contextTag; |
| 1837 | __GLXcontext *glxc = NULL; |
| 1838 | __GLXdrawable *pGlxDraw; |
| 1839 | ClientPtr client = cl->client; |
| 1840 | GLXDrawable drawId; |
| 1841 | int error; |
| 1842 | int x, y, width, height; |
| 1843 | |
| 1844 | (void) client; |
| 1845 | (void) req; |
| 1846 | |
| 1847 | REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 20); |
| 1848 | |
| 1849 | pc += __GLX_VENDPRIV_HDR_SIZE; |
| 1850 | |
| 1851 | drawId = *((CARD32 *) (pc)); |
| 1852 | x = *((INT32 *) (pc + 4)); |
| 1853 | y = *((INT32 *) (pc + 8)); |
| 1854 | width = *((INT32 *) (pc + 12)); |
| 1855 | height = *((INT32 *) (pc + 16)); |
| 1856 | |
| 1857 | if (tag) { |
| 1858 | glxc = __glXLookupContextByTag(cl, tag); |
| 1859 | if (!glxc) { |
| 1860 | return __glXError(GLXBadContextTag); |
| 1861 | } |
| 1862 | /* |
| 1863 | ** The calling thread is swapping its current drawable. In this case, |
| 1864 | ** glxSwapBuffers is in both GL and X streams, in terms of |
| 1865 | ** sequentiality. |
| 1866 | */ |
| 1867 | if (__glXForceCurrent(cl, tag, &error)) { |
| 1868 | /* |
| 1869 | ** Do whatever is needed to make sure that all preceding requests |
| 1870 | ** in both streams are completed before the swap is executed. |
| 1871 | */ |
| 1872 | glFinish(); |
| 1873 | glxc->hasUnflushedCommands = GL_FALSE; |
| 1874 | } |
| 1875 | else { |
| 1876 | return error; |
| 1877 | } |
| 1878 | } |
| 1879 | |
| 1880 | pGlxDraw = __glXGetDrawable(glxc, drawId, client, &error); |
| 1881 | if (!pGlxDraw) |
| 1882 | return error; |
| 1883 | |
| 1884 | if (pGlxDraw == NULL || |
| 1885 | pGlxDraw->type != GLX_DRAWABLE_WINDOW || |
| 1886 | pGlxDraw->copySubBuffer == NULL) |
| 1887 | return __glXError(GLXBadDrawable); |
| 1888 | |
| 1889 | (*pGlxDraw->copySubBuffer) (pGlxDraw, x, y, width, height); |
| 1890 | |
| 1891 | return Success; |
| 1892 | } |
| 1893 | |
| 1894 | /* |
| 1895 | ** Get drawable attributes |
| 1896 | */ |
| 1897 | static int |
| 1898 | DoGetDrawableAttributes(__GLXclientState * cl, XID drawId) |
| 1899 | { |
| 1900 | ClientPtr client = cl->client; |
| 1901 | xGLXGetDrawableAttributesReply reply; |
| 1902 | __GLXdrawable *pGlxDraw; |
| 1903 | CARD32 attributes[14]; |
| 1904 | int numAttribs = 0, error; |
| 1905 | |
| 1906 | if (!validGlxDrawable(client, drawId, GLX_DRAWABLE_ANY, |
| 1907 | DixGetAttrAccess, &pGlxDraw, &error)) |
| 1908 | return error; |
| 1909 | |
| 1910 | attributes[0] = GLX_TEXTURE_TARGET_EXT; |
| 1911 | attributes[1] = pGlxDraw->target == GL_TEXTURE_2D ? GLX_TEXTURE_2D_EXT : |
| 1912 | GLX_TEXTURE_RECTANGLE_EXT; |
| 1913 | numAttribs++; |
| 1914 | attributes[2] = GLX_Y_INVERTED_EXT; |
| 1915 | attributes[3] = GL_FALSE; |
| 1916 | numAttribs++; |
| 1917 | attributes[4] = GLX_EVENT_MASK; |
| 1918 | attributes[5] = pGlxDraw->eventMask; |
| 1919 | numAttribs++; |
| 1920 | attributes[6] = GLX_WIDTH; |
| 1921 | attributes[7] = pGlxDraw->pDraw->width; |
| 1922 | numAttribs++; |
| 1923 | attributes[8] = GLX_HEIGHT; |
| 1924 | attributes[9] = pGlxDraw->pDraw->height; |
| 1925 | numAttribs++; |
| 1926 | attributes[10] = GLX_FBCONFIG_ID; |
| 1927 | attributes[11] = pGlxDraw->config->fbconfigID; |
| 1928 | numAttribs++; |
| 1929 | if (pGlxDraw->type == GLX_DRAWABLE_PBUFFER) { |
| 1930 | attributes[12] = GLX_PRESERVED_CONTENTS; |
| 1931 | attributes[13] = GL_TRUE; |
| 1932 | numAttribs++; |
| 1933 | } |
| 1934 | |
| 1935 | reply = (xGLXGetDrawableAttributesReply) { |
| 1936 | .type = X_Reply, |
| 1937 | .sequenceNumber = client->sequence, |
| 1938 | .length = numAttribs << 1, |
| 1939 | .numAttribs = numAttribs |
| 1940 | }; |
| 1941 | |
| 1942 | if (client->swapped) { |
| 1943 | __glXSwapGetDrawableAttributesReply(client, &reply, attributes); |
| 1944 | } |
| 1945 | else { |
| 1946 | WriteToClient(client, sz_xGLXGetDrawableAttributesReply, &reply); |
| 1947 | WriteToClient(client, reply.length * sizeof(CARD32), attributes); |
| 1948 | } |
| 1949 | |
| 1950 | return Success; |
| 1951 | } |
| 1952 | |
| 1953 | int |
| 1954 | __glXDisp_GetDrawableAttributes(__GLXclientState * cl, GLbyte * pc) |
| 1955 | { |
| 1956 | ClientPtr client = cl->client; |
| 1957 | xGLXGetDrawableAttributesReq *req = (xGLXGetDrawableAttributesReq *) pc; |
| 1958 | |
| 1959 | /* this should be REQUEST_SIZE_MATCH, but mesa sends an additional 4 bytes */ |
| 1960 | REQUEST_AT_LEAST_SIZE(xGLXGetDrawableAttributesReq); |
| 1961 | |
| 1962 | return DoGetDrawableAttributes(cl, req->drawable); |
| 1963 | } |
| 1964 | |
| 1965 | int |
| 1966 | __glXDisp_GetDrawableAttributesSGIX(__GLXclientState * cl, GLbyte * pc) |
| 1967 | { |
| 1968 | ClientPtr client = cl->client; |
| 1969 | xGLXGetDrawableAttributesSGIXReq *req = |
| 1970 | (xGLXGetDrawableAttributesSGIXReq *) pc; |
| 1971 | |
| 1972 | REQUEST_SIZE_MATCH(xGLXGetDrawableAttributesSGIXReq); |
| 1973 | |
| 1974 | return DoGetDrawableAttributes(cl, req->drawable); |
| 1975 | } |
| 1976 | |
| 1977 | /************************************************************************/ |
| 1978 | |
| 1979 | /* |
| 1980 | ** Render and Renderlarge are not in the GLX API. They are used by the GLX |
| 1981 | ** client library to send batches of GL rendering commands. |
| 1982 | */ |
| 1983 | |
| 1984 | /* |
| 1985 | ** Execute all the drawing commands in a request. |
| 1986 | */ |
| 1987 | int |
| 1988 | __glXDisp_Render(__GLXclientState * cl, GLbyte * pc) |
| 1989 | { |
| 1990 | xGLXRenderReq *req; |
| 1991 | ClientPtr client = cl->client; |
| 1992 | int left, cmdlen, error; |
| 1993 | int commandsDone; |
| 1994 | CARD16 opcode; |
| 1995 | __GLXrenderHeader *hdr; |
| 1996 | __GLXcontext *glxc; |
| 1997 | |
| 1998 | __GLX_DECLARE_SWAP_VARIABLES; |
| 1999 | |
| 2000 | REQUEST_AT_LEAST_SIZE(xGLXRenderReq); |
| 2001 | |
| 2002 | req = (xGLXRenderReq *) pc; |
| 2003 | if (client->swapped) { |
| 2004 | __GLX_SWAP_SHORT(&req->length); |
| 2005 | __GLX_SWAP_INT(&req->contextTag); |
| 2006 | } |
| 2007 | |
| 2008 | glxc = __glXForceCurrent(cl, req->contextTag, &error); |
| 2009 | if (!glxc) { |
| 2010 | return error; |
| 2011 | } |
| 2012 | |
| 2013 | commandsDone = 0; |
| 2014 | pc += sz_xGLXRenderReq; |
| 2015 | left = (req->length << 2) - sz_xGLXRenderReq; |
| 2016 | while (left > 0) { |
| 2017 | __GLXrenderSizeData entry; |
| 2018 | int extra; |
| 2019 | __GLXdispatchRenderProcPtr proc; |
| 2020 | int err; |
| 2021 | |
| 2022 | if (left < sizeof(__GLXrenderHeader)) |
| 2023 | return BadLength; |
| 2024 | |
| 2025 | /* |
| 2026 | ** Verify that the header length and the overall length agree. |
| 2027 | ** Also, each command must be word aligned. |
| 2028 | */ |
| 2029 | hdr = (__GLXrenderHeader *) pc; |
| 2030 | if (client->swapped) { |
| 2031 | __GLX_SWAP_SHORT(&hdr->length); |
| 2032 | __GLX_SWAP_SHORT(&hdr->opcode); |
| 2033 | } |
| 2034 | cmdlen = hdr->length; |
| 2035 | opcode = hdr->opcode; |
| 2036 | |
| 2037 | /* |
| 2038 | ** Check for core opcodes and grab entry data. |
| 2039 | */ |
| 2040 | err = __glXGetProtocolSizeData(&Render_dispatch_info, opcode, &entry); |
| 2041 | proc = (__GLXdispatchRenderProcPtr) |
| 2042 | __glXGetProtocolDecodeFunction(&Render_dispatch_info, |
| 2043 | opcode, client->swapped); |
| 2044 | |
| 2045 | if ((err < 0) || (proc == NULL)) { |
| 2046 | client->errorValue = commandsDone; |
| 2047 | return __glXError(GLXBadRenderRequest); |
| 2048 | } |
| 2049 | |
| 2050 | if (entry.varsize) { |
| 2051 | /* variable size command */ |
| 2052 | extra = (*entry.varsize) (pc + __GLX_RENDER_HDR_SIZE, |
| 2053 | client->swapped); |
| 2054 | if (extra < 0) { |
| 2055 | extra = 0; |
| 2056 | } |
| 2057 | if (cmdlen != __GLX_PAD(entry.bytes + extra)) { |
| 2058 | return BadLength; |
| 2059 | } |
| 2060 | } |
| 2061 | else { |
| 2062 | /* constant size command */ |
| 2063 | if (cmdlen != __GLX_PAD(entry.bytes)) { |
| 2064 | return BadLength; |
| 2065 | } |
| 2066 | } |
| 2067 | if (left < cmdlen) { |
| 2068 | return BadLength; |
| 2069 | } |
| 2070 | |
| 2071 | /* |
| 2072 | ** Skip over the header and execute the command. We allow the |
| 2073 | ** caller to trash the command memory. This is useful especially |
| 2074 | ** for things that require double alignment - they can just shift |
| 2075 | ** the data towards lower memory (trashing the header) by 4 bytes |
| 2076 | ** and achieve the required alignment. |
| 2077 | */ |
| 2078 | (*proc) (pc + __GLX_RENDER_HDR_SIZE); |
| 2079 | pc += cmdlen; |
| 2080 | left -= cmdlen; |
| 2081 | commandsDone++; |
| 2082 | } |
| 2083 | glxc->hasUnflushedCommands = GL_TRUE; |
| 2084 | return Success; |
| 2085 | } |
| 2086 | |
| 2087 | /* |
| 2088 | ** Execute a large rendering request (one that spans multiple X requests). |
| 2089 | */ |
| 2090 | int |
| 2091 | __glXDisp_RenderLarge(__GLXclientState * cl, GLbyte * pc) |
| 2092 | { |
| 2093 | xGLXRenderLargeReq *req; |
| 2094 | ClientPtr client = cl->client; |
| 2095 | size_t dataBytes; |
| 2096 | __GLXrenderLargeHeader *hdr; |
| 2097 | __GLXcontext *glxc; |
| 2098 | int error; |
| 2099 | CARD16 opcode; |
| 2100 | |
| 2101 | __GLX_DECLARE_SWAP_VARIABLES; |
| 2102 | |
| 2103 | req = (xGLXRenderLargeReq *) pc; |
| 2104 | if (client->swapped) { |
| 2105 | __GLX_SWAP_SHORT(&req->length); |
| 2106 | __GLX_SWAP_INT(&req->contextTag); |
| 2107 | __GLX_SWAP_INT(&req->dataBytes); |
| 2108 | __GLX_SWAP_SHORT(&req->requestNumber); |
| 2109 | __GLX_SWAP_SHORT(&req->requestTotal); |
| 2110 | } |
| 2111 | |
| 2112 | glxc = __glXForceCurrent(cl, req->contextTag, &error); |
| 2113 | if (!glxc) { |
| 2114 | /* Reset in case this isn't 1st request. */ |
| 2115 | __glXResetLargeCommandStatus(cl); |
| 2116 | return error; |
| 2117 | } |
| 2118 | dataBytes = req->dataBytes; |
| 2119 | |
| 2120 | /* |
| 2121 | ** Check the request length. |
| 2122 | */ |
| 2123 | if ((req->length << 2) != __GLX_PAD(dataBytes) + sz_xGLXRenderLargeReq) { |
| 2124 | client->errorValue = req->length; |
| 2125 | /* Reset in case this isn't 1st request. */ |
| 2126 | __glXResetLargeCommandStatus(cl); |
| 2127 | return BadLength; |
| 2128 | } |
| 2129 | pc += sz_xGLXRenderLargeReq; |
| 2130 | |
| 2131 | if (cl->largeCmdRequestsSoFar == 0) { |
| 2132 | __GLXrenderSizeData entry; |
| 2133 | int extra; |
| 2134 | size_t cmdlen; |
| 2135 | int err; |
| 2136 | |
| 2137 | /* |
| 2138 | ** This is the first request of a multi request command. |
| 2139 | ** Make enough space in the buffer, then copy the entire request. |
| 2140 | */ |
| 2141 | if (req->requestNumber != 1) { |
| 2142 | client->errorValue = req->requestNumber; |
| 2143 | return __glXError(GLXBadLargeRequest); |
| 2144 | } |
| 2145 | |
| 2146 | hdr = (__GLXrenderLargeHeader *) pc; |
| 2147 | if (client->swapped) { |
| 2148 | __GLX_SWAP_INT(&hdr->length); |
| 2149 | __GLX_SWAP_INT(&hdr->opcode); |
| 2150 | } |
| 2151 | cmdlen = hdr->length; |
| 2152 | opcode = hdr->opcode; |
| 2153 | |
| 2154 | /* |
| 2155 | ** Check for core opcodes and grab entry data. |
| 2156 | */ |
| 2157 | err = __glXGetProtocolSizeData(&Render_dispatch_info, opcode, &entry); |
| 2158 | if (err < 0) { |
| 2159 | client->errorValue = opcode; |
| 2160 | return __glXError(GLXBadLargeRequest); |
| 2161 | } |
| 2162 | |
| 2163 | if (entry.varsize) { |
| 2164 | /* |
| 2165 | ** If it's a variable-size command (a command whose length must |
| 2166 | ** be computed from its parameters), all the parameters needed |
| 2167 | ** will be in the 1st request, so it's okay to do this. |
| 2168 | */ |
| 2169 | extra = (*entry.varsize) (pc + __GLX_RENDER_LARGE_HDR_SIZE, |
| 2170 | client->swapped); |
| 2171 | if (extra < 0) { |
| 2172 | extra = 0; |
| 2173 | } |
| 2174 | /* large command's header is 4 bytes longer, so add 4 */ |
| 2175 | if (cmdlen != __GLX_PAD(entry.bytes + 4 + extra)) { |
| 2176 | return BadLength; |
| 2177 | } |
| 2178 | } |
| 2179 | else { |
| 2180 | /* constant size command */ |
| 2181 | if (cmdlen != __GLX_PAD(entry.bytes + 4)) { |
| 2182 | return BadLength; |
| 2183 | } |
| 2184 | } |
| 2185 | /* |
| 2186 | ** Make enough space in the buffer, then copy the entire request. |
| 2187 | */ |
| 2188 | if (cl->largeCmdBufSize < cmdlen) { |
| 2189 | GLbyte *newbuf = cl->largeCmdBuf; |
| 2190 | |
| 2191 | if (!(newbuf = realloc(newbuf, cmdlen))) |
| 2192 | return BadAlloc; |
| 2193 | |
| 2194 | cl->largeCmdBuf = newbuf; |
| 2195 | cl->largeCmdBufSize = cmdlen; |
| 2196 | } |
| 2197 | memcpy(cl->largeCmdBuf, pc, dataBytes); |
| 2198 | |
| 2199 | cl->largeCmdBytesSoFar = dataBytes; |
| 2200 | cl->largeCmdBytesTotal = cmdlen; |
| 2201 | cl->largeCmdRequestsSoFar = 1; |
| 2202 | cl->largeCmdRequestsTotal = req->requestTotal; |
| 2203 | return Success; |
| 2204 | |
| 2205 | } |
| 2206 | else { |
| 2207 | /* |
| 2208 | ** We are receiving subsequent (i.e. not the first) requests of a |
| 2209 | ** multi request command. |
| 2210 | */ |
| 2211 | |
| 2212 | /* |
| 2213 | ** Check the request number and the total request count. |
| 2214 | */ |
| 2215 | if (req->requestNumber != cl->largeCmdRequestsSoFar + 1) { |
| 2216 | client->errorValue = req->requestNumber; |
| 2217 | __glXResetLargeCommandStatus(cl); |
| 2218 | return __glXError(GLXBadLargeRequest); |
| 2219 | } |
| 2220 | if (req->requestTotal != cl->largeCmdRequestsTotal) { |
| 2221 | client->errorValue = req->requestTotal; |
| 2222 | __glXResetLargeCommandStatus(cl); |
| 2223 | return __glXError(GLXBadLargeRequest); |
| 2224 | } |
| 2225 | |
| 2226 | /* |
| 2227 | ** Check that we didn't get too much data. |
| 2228 | */ |
| 2229 | if ((cl->largeCmdBytesSoFar + dataBytes) > cl->largeCmdBytesTotal) { |
| 2230 | client->errorValue = dataBytes; |
| 2231 | __glXResetLargeCommandStatus(cl); |
| 2232 | return __glXError(GLXBadLargeRequest); |
| 2233 | } |
| 2234 | memcpy(cl->largeCmdBuf + cl->largeCmdBytesSoFar, pc, dataBytes); |
| 2235 | cl->largeCmdBytesSoFar += dataBytes; |
| 2236 | cl->largeCmdRequestsSoFar++; |
| 2237 | |
| 2238 | if (req->requestNumber == cl->largeCmdRequestsTotal) { |
| 2239 | __GLXdispatchRenderProcPtr proc; |
| 2240 | |
| 2241 | /* |
| 2242 | ** This is the last request; it must have enough bytes to complete |
| 2243 | ** the command. |
| 2244 | */ |
| 2245 | /* NOTE: the two pad macros have been added below; they are needed |
| 2246 | ** because the client library pads the total byte count, but not |
| 2247 | ** the per-request byte counts. The Protocol Encoding says the |
| 2248 | ** total byte count should not be padded, so a proposal will be |
| 2249 | ** made to the ARB to relax the padding constraint on the total |
| 2250 | ** byte count, thus preserving backward compatibility. Meanwhile, |
| 2251 | ** the padding done below fixes a bug that did not allow |
| 2252 | ** large commands of odd sizes to be accepted by the server. |
| 2253 | */ |
| 2254 | if (__GLX_PAD(cl->largeCmdBytesSoFar) != |
| 2255 | __GLX_PAD(cl->largeCmdBytesTotal)) { |
| 2256 | client->errorValue = dataBytes; |
| 2257 | __glXResetLargeCommandStatus(cl); |
| 2258 | return __glXError(GLXBadLargeRequest); |
| 2259 | } |
| 2260 | hdr = (__GLXrenderLargeHeader *) cl->largeCmdBuf; |
| 2261 | /* |
| 2262 | ** The opcode and length field in the header had already been |
| 2263 | ** swapped when the first request was received. |
| 2264 | ** |
| 2265 | ** Use the opcode to index into the procedure table. |
| 2266 | */ |
| 2267 | opcode = hdr->opcode; |
| 2268 | |
| 2269 | proc = (__GLXdispatchRenderProcPtr) |
| 2270 | __glXGetProtocolDecodeFunction(&Render_dispatch_info, opcode, |
| 2271 | client->swapped); |
| 2272 | if (proc == NULL) { |
| 2273 | client->errorValue = opcode; |
| 2274 | return __glXError(GLXBadLargeRequest); |
| 2275 | } |
| 2276 | |
| 2277 | /* |
| 2278 | ** Skip over the header and execute the command. |
| 2279 | */ |
| 2280 | (*proc) (cl->largeCmdBuf + __GLX_RENDER_LARGE_HDR_SIZE); |
| 2281 | glxc->hasUnflushedCommands = GL_TRUE; |
| 2282 | |
| 2283 | /* |
| 2284 | ** Reset for the next RenderLarge series. |
| 2285 | */ |
| 2286 | __glXResetLargeCommandStatus(cl); |
| 2287 | } |
| 2288 | else { |
| 2289 | /* |
| 2290 | ** This is neither the first nor the last request. |
| 2291 | */ |
| 2292 | } |
| 2293 | return Success; |
| 2294 | } |
| 2295 | } |
| 2296 | |
| 2297 | /************************************************************************/ |
| 2298 | |
| 2299 | /* |
| 2300 | ** No support is provided for the vendor-private requests other than |
| 2301 | ** allocating the entry points in the dispatch table. |
| 2302 | */ |
| 2303 | |
| 2304 | int |
| 2305 | __glXDisp_VendorPrivate(__GLXclientState * cl, GLbyte * pc) |
| 2306 | { |
| 2307 | ClientPtr client = cl->client; |
| 2308 | xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; |
| 2309 | GLint vendorcode = req->vendorCode; |
| 2310 | __GLXdispatchVendorPrivProcPtr proc; |
| 2311 | |
| 2312 | REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); |
| 2313 | |
| 2314 | proc = (__GLXdispatchVendorPrivProcPtr) |
| 2315 | __glXGetProtocolDecodeFunction(&VendorPriv_dispatch_info, |
| 2316 | vendorcode, 0); |
| 2317 | if (proc != NULL) { |
| 2318 | (*proc) (cl, (GLbyte *) req); |
| 2319 | return Success; |
| 2320 | } |
| 2321 | |
| 2322 | cl->client->errorValue = req->vendorCode; |
| 2323 | return __glXError(GLXUnsupportedPrivateRequest); |
| 2324 | } |
| 2325 | |
| 2326 | int |
| 2327 | __glXDisp_VendorPrivateWithReply(__GLXclientState * cl, GLbyte * pc) |
| 2328 | { |
| 2329 | ClientPtr client = cl->client; |
| 2330 | xGLXVendorPrivateReq *req = (xGLXVendorPrivateReq *) pc; |
| 2331 | GLint vendorcode = req->vendorCode; |
| 2332 | __GLXdispatchVendorPrivProcPtr proc; |
| 2333 | |
| 2334 | REQUEST_AT_LEAST_SIZE(xGLXVendorPrivateReq); |
| 2335 | |
| 2336 | proc = (__GLXdispatchVendorPrivProcPtr) |
| 2337 | __glXGetProtocolDecodeFunction(&VendorPriv_dispatch_info, |
| 2338 | vendorcode, 0); |
| 2339 | if (proc != NULL) { |
| 2340 | return (*proc) (cl, (GLbyte *) req); |
| 2341 | } |
| 2342 | |
| 2343 | cl->client->errorValue = vendorcode; |
| 2344 | return __glXError(GLXUnsupportedPrivateRequest); |
| 2345 | } |
| 2346 | |
| 2347 | int |
| 2348 | __glXDisp_QueryExtensionsString(__GLXclientState * cl, GLbyte * pc) |
| 2349 | { |
| 2350 | ClientPtr client = cl->client; |
| 2351 | xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc; |
| 2352 | xGLXQueryExtensionsStringReply reply; |
| 2353 | __GLXscreen *pGlxScreen; |
| 2354 | size_t n, length; |
| 2355 | char *buf; |
| 2356 | int err; |
| 2357 | |
| 2358 | REQUEST_SIZE_MATCH(xGLXQueryExtensionsStringReq); |
| 2359 | |
| 2360 | if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) |
| 2361 | return err; |
| 2362 | |
| 2363 | n = strlen(pGlxScreen->GLXextensions) + 1; |
| 2364 | length = __GLX_PAD(n) >> 2; |
| 2365 | reply = (xGLXQueryExtensionsStringReply) { |
| 2366 | .type = X_Reply, |
| 2367 | .sequenceNumber = client->sequence, |
| 2368 | .length = length, |
| 2369 | .n = n |
| 2370 | }; |
| 2371 | |
| 2372 | /* Allocate buffer to make sure it's a multiple of 4 bytes big. */ |
| 2373 | buf = calloc(length, 4); |
| 2374 | if (buf == NULL) |
| 2375 | return BadAlloc; |
| 2376 | memcpy(buf, pGlxScreen->GLXextensions, n); |
| 2377 | |
| 2378 | if (client->swapped) { |
| 2379 | glxSwapQueryExtensionsStringReply(client, &reply, buf); |
| 2380 | } |
| 2381 | else { |
| 2382 | WriteToClient(client, sz_xGLXQueryExtensionsStringReply, &reply); |
| 2383 | WriteToClient(client, (int) (length << 2), buf); |
| 2384 | } |
| 2385 | |
| 2386 | free(buf); |
| 2387 | return Success; |
| 2388 | } |
| 2389 | |
| 2390 | int |
| 2391 | __glXDisp_QueryServerString(__GLXclientState * cl, GLbyte * pc) |
| 2392 | { |
| 2393 | ClientPtr client = cl->client; |
| 2394 | xGLXQueryServerStringReq *req = (xGLXQueryServerStringReq *) pc; |
| 2395 | xGLXQueryServerStringReply reply; |
| 2396 | size_t n, length; |
| 2397 | const char *ptr; |
| 2398 | char *buf; |
| 2399 | __GLXscreen *pGlxScreen; |
| 2400 | int err; |
| 2401 | char ver_str[16]; |
| 2402 | |
| 2403 | REQUEST_SIZE_MATCH(xGLXQueryServerStringReq); |
| 2404 | |
| 2405 | if (!validGlxScreen(client, req->screen, &pGlxScreen, &err)) |
| 2406 | return err; |
| 2407 | |
| 2408 | switch (req->name) { |
| 2409 | case GLX_VENDOR: |
| 2410 | ptr = GLXServerVendorName; |
| 2411 | break; |
| 2412 | case GLX_VERSION: |
| 2413 | /* Return to the server version rather than the screen version |
| 2414 | * to prevent confusion when they do not match. |
| 2415 | */ |
| 2416 | snprintf(ver_str, 16, "%d.%d", glxMajorVersion, glxMinorVersion); |
| 2417 | ptr = ver_str; |
| 2418 | break; |
| 2419 | case GLX_EXTENSIONS: |
| 2420 | ptr = pGlxScreen->GLXextensions; |
| 2421 | break; |
| 2422 | default: |
| 2423 | return BadValue; |
| 2424 | } |
| 2425 | |
| 2426 | n = strlen(ptr) + 1; |
| 2427 | length = __GLX_PAD(n) >> 2; |
| 2428 | reply = (xGLXQueryServerStringReply) { |
| 2429 | .type = X_Reply, |
| 2430 | .sequenceNumber = client->sequence, |
| 2431 | .length = length, |
| 2432 | .n = n |
| 2433 | }; |
| 2434 | |
| 2435 | buf = calloc(length, 4); |
| 2436 | if (buf == NULL) { |
| 2437 | return BadAlloc; |
| 2438 | } |
| 2439 | memcpy(buf, ptr, n); |
| 2440 | |
| 2441 | if (client->swapped) { |
| 2442 | glxSwapQueryServerStringReply(client, &reply, buf); |
| 2443 | } |
| 2444 | else { |
| 2445 | WriteToClient(client, sz_xGLXQueryServerStringReply, &reply); |
| 2446 | WriteToClient(client, (int) (length << 2), buf); |
| 2447 | } |
| 2448 | |
| 2449 | free(buf); |
| 2450 | return Success; |
| 2451 | } |
| 2452 | |
| 2453 | int |
| 2454 | __glXDisp_ClientInfo(__GLXclientState * cl, GLbyte * pc) |
| 2455 | { |
| 2456 | ClientPtr client = cl->client; |
| 2457 | xGLXClientInfoReq *req = (xGLXClientInfoReq *) pc; |
| 2458 | const char *buf; |
| 2459 | |
| 2460 | REQUEST_AT_LEAST_SIZE(xGLXClientInfoReq); |
| 2461 | |
| 2462 | buf = (const char *) (req + 1); |
| 2463 | if (!memchr(buf, 0, (client->req_len << 2) - sizeof(xGLXClientInfoReq))) |
| 2464 | return BadLength; |
| 2465 | |
| 2466 | free(cl->GLClientextensions); |
| 2467 | cl->GLClientextensions = strdup(buf); |
| 2468 | |
| 2469 | return Success; |
| 2470 | } |
| 2471 | |
| 2472 | #include <GL/glxtokens.h> |
| 2473 | |
| 2474 | void |
| 2475 | __glXsendSwapEvent(__GLXdrawable *drawable, int type, CARD64 ust, |
| 2476 | CARD64 msc, CARD32 sbc) |
| 2477 | { |
| 2478 | ClientPtr client = clients[CLIENT_ID(drawable->drawId)]; |
| 2479 | |
| 2480 | xGLXBufferSwapComplete2 wire = { |
| 2481 | .type = __glXEventBase + GLX_BufferSwapComplete |
| 2482 | }; |
| 2483 | |
| 2484 | if (!client) |
| 2485 | return; |
| 2486 | |
| 2487 | if (!(drawable->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK)) |
| 2488 | return; |
| 2489 | |
| 2490 | wire.event_type = type; |
| 2491 | wire.drawable = drawable->drawId; |
| 2492 | wire.ust_hi = ust >> 32; |
| 2493 | wire.ust_lo = ust & 0xffffffff; |
| 2494 | wire.msc_hi = msc >> 32; |
| 2495 | wire.msc_lo = msc & 0xffffffff; |
| 2496 | wire.sbc = sbc; |
| 2497 | |
| 2498 | WriteEventsToClient(client, 1, (xEvent *) &wire); |
| 2499 | } |
| 2500 | |
| 2501 | #if PRESENT |
| 2502 | static void |
| 2503 | __glXpresentCompleteNotify(WindowPtr window, CARD8 present_mode, CARD32 serial, |
| 2504 | uint64_t ust, uint64_t msc) |
| 2505 | { |
| 2506 | __GLXdrawable *drawable; |
| 2507 | int glx_type; |
| 2508 | int rc; |
| 2509 | |
| 2510 | rc = dixLookupResourceByType((pointer *) &drawable, window->drawable.id, |
| 2511 | __glXDrawableRes, serverClient, DixGetAttrAccess); |
| 2512 | |
| 2513 | if (rc != Success) |
| 2514 | return; |
| 2515 | |
| 2516 | if (present_mode == PresentCompleteModeFlip) |
| 2517 | glx_type = GLX_FLIP_COMPLETE_INTEL; |
| 2518 | else |
| 2519 | glx_type = GLX_BLIT_COMPLETE_INTEL; |
| 2520 | |
| 2521 | __glXsendSwapEvent(drawable, glx_type, ust, msc, serial); |
| 2522 | } |
| 2523 | |
| 2524 | #include <present.h> |
| 2525 | |
| 2526 | void |
| 2527 | __glXregisterPresentCompleteNotify(void) |
| 2528 | { |
| 2529 | present_register_complete_notify(__glXpresentCompleteNotify); |
| 2530 | } |
| 2531 | #endif |