| 1 | /* |
| 2 | * Screen routines for generic rootless X server |
| 3 | */ |
| 4 | /* |
| 5 | * Copyright (c) 2001 Greg Parker. All Rights Reserved. |
| 6 | * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved. |
| 7 | * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. |
| 8 | * |
| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 10 | * copy of this software and associated documentation files (the "Software"), |
| 11 | * to deal in the Software without restriction, including without limitation |
| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
| 14 | * Software is furnished to do so, subject to the following conditions: |
| 15 | * |
| 16 | * The above copyright notice and this permission notice shall be included in |
| 17 | * all copies or substantial portions of the Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 22 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 23 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 24 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 25 | * DEALINGS IN THE SOFTWARE. |
| 26 | * |
| 27 | * Except as contained in this notice, the name(s) of the above copyright |
| 28 | * holders shall not be used in advertising or otherwise to promote the sale, |
| 29 | * use or other dealings in this Software without prior written authorization. |
| 30 | */ |
| 31 | |
| 32 | #ifdef HAVE_DIX_CONFIG_H |
| 33 | #include <dix-config.h> |
| 34 | #endif |
| 35 | |
| 36 | #include "mi.h" |
| 37 | #include "scrnintstr.h" |
| 38 | #include "gcstruct.h" |
| 39 | #include "pixmapstr.h" |
| 40 | #include "windowstr.h" |
| 41 | #include "propertyst.h" |
| 42 | #include "mivalidate.h" |
| 43 | #include "picturestr.h" |
| 44 | #include "colormapst.h" |
| 45 | |
| 46 | #include <sys/types.h> |
| 47 | #include <sys/stat.h> |
| 48 | #include <fcntl.h> |
| 49 | #include <string.h> |
| 50 | |
| 51 | #include "rootlessCommon.h" |
| 52 | #include "rootlessWindow.h" |
| 53 | |
| 54 | /* In milliseconds */ |
| 55 | #ifndef ROOTLESS_REDISPLAY_DELAY |
| 56 | #define ROOTLESS_REDISPLAY_DELAY 10 |
| 57 | #endif |
| 58 | |
| 59 | extern int RootlessMiValidateTree(WindowPtr pRoot, WindowPtr pChild, |
| 60 | VTKind kind); |
| 61 | extern Bool RootlessCreateGC(GCPtr pGC); |
| 62 | |
| 63 | // Initialize globals |
| 64 | DevPrivateKeyRec rootlessGCPrivateKeyRec; |
| 65 | DevPrivateKeyRec rootlessScreenPrivateKeyRec; |
| 66 | DevPrivateKeyRec rootlessWindowPrivateKeyRec; |
| 67 | DevPrivateKeyRec rootlessWindowOldPixmapPrivateKeyRec; |
| 68 | |
| 69 | /* |
| 70 | * RootlessUpdateScreenPixmap |
| 71 | * miCreateScreenResources does not like a null framebuffer pointer, |
| 72 | * it leaves the screen pixmap with an uninitialized data pointer. |
| 73 | * Thus, rootless implementations typically set the framebuffer width |
| 74 | * to zero so that miCreateScreenResources does not allocate a screen |
| 75 | * pixmap for us. We allocate our own screen pixmap here since we need |
| 76 | * the screen pixmap to be valid (e.g. CopyArea from the root window). |
| 77 | */ |
| 78 | void |
| 79 | RootlessUpdateScreenPixmap(ScreenPtr pScreen) |
| 80 | { |
| 81 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 82 | PixmapPtr pPix; |
| 83 | unsigned int rowbytes; |
| 84 | |
| 85 | pPix = (*pScreen->GetScreenPixmap) (pScreen); |
| 86 | if (pPix == NULL) { |
| 87 | pPix = (*pScreen->CreatePixmap) (pScreen, 0, 0, pScreen->rootDepth, 0); |
| 88 | (*pScreen->SetScreenPixmap) (pPix); |
| 89 | } |
| 90 | |
| 91 | rowbytes = PixmapBytePad(pScreen->width, pScreen->rootDepth); |
| 92 | |
| 93 | if (s->pixmap_data_size < rowbytes) { |
| 94 | free(s->pixmap_data); |
| 95 | |
| 96 | s->pixmap_data_size = rowbytes; |
| 97 | s->pixmap_data = malloc(s->pixmap_data_size); |
| 98 | if (s->pixmap_data == NULL) |
| 99 | return; |
| 100 | |
| 101 | memset(s->pixmap_data, 0xFF, s->pixmap_data_size); |
| 102 | |
| 103 | pScreen->ModifyPixmapHeader(pPix, pScreen->width, pScreen->height, |
| 104 | pScreen->rootDepth, |
| 105 | BitsPerPixel(pScreen->rootDepth), |
| 106 | 0, s->pixmap_data); |
| 107 | /* ModifyPixmapHeader ignores zero arguments, so install rowbytes |
| 108 | by hand. */ |
| 109 | pPix->devKind = 0; |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /* |
| 114 | * RootlessCreateScreenResources |
| 115 | * Rootless implementations typically set a null framebuffer pointer, which |
| 116 | * causes problems with miCreateScreenResources. We fix things up here. |
| 117 | */ |
| 118 | static Bool |
| 119 | RootlessCreateScreenResources(ScreenPtr pScreen) |
| 120 | { |
| 121 | Bool ret = TRUE; |
| 122 | |
| 123 | SCREEN_UNWRAP(pScreen, CreateScreenResources); |
| 124 | |
| 125 | if (pScreen->CreateScreenResources != NULL) |
| 126 | ret = (*pScreen->CreateScreenResources) (pScreen); |
| 127 | |
| 128 | SCREEN_WRAP(pScreen, CreateScreenResources); |
| 129 | |
| 130 | if (!ret) |
| 131 | return ret; |
| 132 | |
| 133 | /* Make sure we have a valid screen pixmap. */ |
| 134 | |
| 135 | RootlessUpdateScreenPixmap(pScreen); |
| 136 | |
| 137 | return ret; |
| 138 | } |
| 139 | |
| 140 | static Bool |
| 141 | RootlessCloseScreen(ScreenPtr pScreen) |
| 142 | { |
| 143 | RootlessScreenRec *s; |
| 144 | |
| 145 | s = SCREENREC(pScreen); |
| 146 | |
| 147 | // fixme unwrap everything that was wrapped? |
| 148 | pScreen->CloseScreen = s->CloseScreen; |
| 149 | |
| 150 | if (s->pixmap_data != NULL) { |
| 151 | free(s->pixmap_data); |
| 152 | s->pixmap_data = NULL; |
| 153 | s->pixmap_data_size = 0; |
| 154 | } |
| 155 | |
| 156 | free(s); |
| 157 | return pScreen->CloseScreen(pScreen); |
| 158 | } |
| 159 | |
| 160 | static void |
| 161 | RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h, |
| 162 | unsigned int format, unsigned long planeMask, char *pdstLine) |
| 163 | { |
| 164 | ScreenPtr pScreen = pDrawable->pScreen; |
| 165 | |
| 166 | SCREEN_UNWRAP(pScreen, GetImage); |
| 167 | |
| 168 | if (pDrawable->type == DRAWABLE_WINDOW) { |
| 169 | int x0, y0, x1, y1; |
| 170 | RootlessWindowRec *winRec; |
| 171 | |
| 172 | // Many apps use GetImage to sync with the visible frame buffer |
| 173 | // FIXME: entire screen or just window or all screens? |
| 174 | RootlessRedisplayScreen(pScreen); |
| 175 | |
| 176 | // RedisplayScreen stops drawing, so we need to start it again |
| 177 | RootlessStartDrawing((WindowPtr) pDrawable); |
| 178 | |
| 179 | /* Check that we have some place to read from. */ |
| 180 | winRec = WINREC(TopLevelParent((WindowPtr) pDrawable)); |
| 181 | if (winRec == NULL) |
| 182 | goto out; |
| 183 | |
| 184 | /* Clip to top-level window bounds. */ |
| 185 | /* FIXME: fbGetImage uses the width parameter to calculate the |
| 186 | stride of the destination pixmap. If w is clipped, the data |
| 187 | returned will be garbage, although we will not crash. */ |
| 188 | |
| 189 | x0 = pDrawable->x + sx; |
| 190 | y0 = pDrawable->y + sy; |
| 191 | x1 = x0 + w; |
| 192 | y1 = y0 + h; |
| 193 | |
| 194 | x0 = max(x0, winRec->x); |
| 195 | y0 = max(y0, winRec->y); |
| 196 | x1 = min(x1, winRec->x + winRec->width); |
| 197 | y1 = min(y1, winRec->y + winRec->height); |
| 198 | |
| 199 | sx = x0 - pDrawable->x; |
| 200 | sy = y0 - pDrawable->y; |
| 201 | w = x1 - x0; |
| 202 | h = y1 - y0; |
| 203 | |
| 204 | if (w <= 0 || h <= 0) |
| 205 | goto out; |
| 206 | } |
| 207 | |
| 208 | pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine); |
| 209 | |
| 210 | out: |
| 211 | SCREEN_WRAP(pScreen, GetImage); |
| 212 | } |
| 213 | |
| 214 | /* |
| 215 | * RootlessSourceValidate |
| 216 | * CopyArea and CopyPlane use a GC tied to the destination drawable. |
| 217 | * StartDrawing/StopDrawing wrappers won't be called if source is |
| 218 | * a visible window but the destination isn't. So, we call StartDrawing |
| 219 | * here and leave StopDrawing for the block handler. |
| 220 | */ |
| 221 | static void |
| 222 | RootlessSourceValidate(DrawablePtr pDrawable, int x, int y, int w, int h, |
| 223 | unsigned int subWindowMode) |
| 224 | { |
| 225 | SCREEN_UNWRAP(pDrawable->pScreen, SourceValidate); |
| 226 | if (pDrawable->type == DRAWABLE_WINDOW) { |
| 227 | WindowPtr pWin = (WindowPtr) pDrawable; |
| 228 | |
| 229 | RootlessStartDrawing(pWin); |
| 230 | } |
| 231 | if (pDrawable->pScreen->SourceValidate) { |
| 232 | pDrawable->pScreen->SourceValidate(pDrawable, x, y, w, h, |
| 233 | subWindowMode); |
| 234 | } |
| 235 | SCREEN_WRAP(pDrawable->pScreen, SourceValidate); |
| 236 | } |
| 237 | |
| 238 | static void |
| 239 | RootlessComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst, |
| 240 | INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, |
| 241 | INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) |
| 242 | { |
| 243 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 244 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 245 | WindowPtr srcWin, dstWin, maskWin = NULL; |
| 246 | |
| 247 | if (pMask) { // pMask can be NULL |
| 248 | maskWin = (pMask->pDrawable && |
| 249 | pMask->pDrawable->type == |
| 250 | DRAWABLE_WINDOW) ? (WindowPtr) pMask->pDrawable : NULL; |
| 251 | } |
| 252 | srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ? |
| 253 | (WindowPtr) pSrc->pDrawable : NULL; |
| 254 | dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ? |
| 255 | (WindowPtr) pDst->pDrawable : NULL; |
| 256 | |
| 257 | // SCREEN_UNWRAP(ps, Composite); |
| 258 | ps->Composite = SCREENREC(pScreen)->Composite; |
| 259 | |
| 260 | if (srcWin && IsFramedWindow(srcWin)) |
| 261 | RootlessStartDrawing(srcWin); |
| 262 | if (maskWin && IsFramedWindow(maskWin)) |
| 263 | RootlessStartDrawing(maskWin); |
| 264 | if (dstWin && IsFramedWindow(dstWin)) |
| 265 | RootlessStartDrawing(dstWin); |
| 266 | |
| 267 | ps->Composite(op, pSrc, pMask, pDst, |
| 268 | xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); |
| 269 | |
| 270 | if (dstWin && IsFramedWindow(dstWin)) { |
| 271 | RootlessDamageRect(dstWin, xDst, yDst, width, height); |
| 272 | } |
| 273 | |
| 274 | ps->Composite = RootlessComposite; |
| 275 | // SCREEN_WRAP(ps, Composite); |
| 276 | } |
| 277 | |
| 278 | static void |
| 279 | RootlessGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst, |
| 280 | PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, |
| 281 | int nlist, GlyphListPtr list, GlyphPtr * glyphs) |
| 282 | { |
| 283 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 284 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 285 | int x, y; |
| 286 | int n; |
| 287 | GlyphPtr glyph; |
| 288 | WindowPtr srcWin, dstWin; |
| 289 | |
| 290 | srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ? |
| 291 | (WindowPtr) pSrc->pDrawable : NULL; |
| 292 | dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ? |
| 293 | (WindowPtr) pDst->pDrawable : NULL; |
| 294 | |
| 295 | if (srcWin && IsFramedWindow(srcWin)) |
| 296 | RootlessStartDrawing(srcWin); |
| 297 | if (dstWin && IsFramedWindow(dstWin)) |
| 298 | RootlessStartDrawing(dstWin); |
| 299 | |
| 300 | //SCREEN_UNWRAP(ps, Glyphs); |
| 301 | ps->Glyphs = SCREENREC(pScreen)->Glyphs; |
| 302 | ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs); |
| 303 | ps->Glyphs = RootlessGlyphs; |
| 304 | //SCREEN_WRAP(ps, Glyphs); |
| 305 | |
| 306 | if (dstWin && IsFramedWindow(dstWin)) { |
| 307 | x = xSrc; |
| 308 | y = ySrc; |
| 309 | |
| 310 | while (nlist--) { |
| 311 | x += list->xOff; |
| 312 | y += list->yOff; |
| 313 | n = list->len; |
| 314 | |
| 315 | /* Calling DamageRect for the bounding box of each glyph is |
| 316 | inefficient. So compute the union of all glyphs in a list |
| 317 | and damage that. */ |
| 318 | |
| 319 | if (n > 0) { |
| 320 | BoxRec box; |
| 321 | |
| 322 | glyph = *glyphs++; |
| 323 | |
| 324 | box.x1 = x - glyph->info.x; |
| 325 | box.y1 = y - glyph->info.y; |
| 326 | box.x2 = box.x1 + glyph->info.width; |
| 327 | box.y2 = box.y1 + glyph->info.height; |
| 328 | |
| 329 | x += glyph->info.xOff; |
| 330 | y += glyph->info.yOff; |
| 331 | |
| 332 | while (--n > 0) { |
| 333 | short x1, y1, x2, y2; |
| 334 | |
| 335 | glyph = *glyphs++; |
| 336 | |
| 337 | x1 = x - glyph->info.x; |
| 338 | y1 = y - glyph->info.y; |
| 339 | x2 = x1 + glyph->info.width; |
| 340 | y2 = y1 + glyph->info.height; |
| 341 | |
| 342 | box.x1 = max(box.x1, x1); |
| 343 | box.y1 = max(box.y1, y1); |
| 344 | box.x2 = max(box.x2, x2); |
| 345 | box.y2 = max(box.y2, y2); |
| 346 | |
| 347 | x += glyph->info.xOff; |
| 348 | y += glyph->info.yOff; |
| 349 | } |
| 350 | |
| 351 | RootlessDamageBox(dstWin, &box); |
| 352 | } |
| 353 | list++; |
| 354 | } |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | /* |
| 359 | * RootlessValidateTree |
| 360 | * ValidateTree is modified in two ways: |
| 361 | * - top-level windows don't clip each other |
| 362 | * - windows aren't clipped against root. |
| 363 | * These only matter when validating from the root. |
| 364 | */ |
| 365 | static int |
| 366 | RootlessValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind) |
| 367 | { |
| 368 | int result; |
| 369 | RegionRec saveRoot; |
| 370 | ScreenPtr pScreen = pParent->drawable.pScreen; |
| 371 | |
| 372 | SCREEN_UNWRAP(pScreen, ValidateTree); |
| 373 | RL_DEBUG_MSG("VALIDATETREE start "); |
| 374 | |
| 375 | // Use our custom version to validate from root |
| 376 | if (IsRoot(pParent)) { |
| 377 | RL_DEBUG_MSG("custom "); |
| 378 | result = RootlessMiValidateTree(pParent, pChild, kind); |
| 379 | } |
| 380 | else { |
| 381 | HUGE_ROOT(pParent); |
| 382 | result = pScreen->ValidateTree(pParent, pChild, kind); |
| 383 | NORMAL_ROOT(pParent); |
| 384 | } |
| 385 | |
| 386 | SCREEN_WRAP(pScreen, ValidateTree); |
| 387 | RL_DEBUG_MSG("VALIDATETREE end\n"); |
| 388 | |
| 389 | return result; |
| 390 | } |
| 391 | |
| 392 | /* |
| 393 | * RootlessMarkOverlappedWindows |
| 394 | * MarkOverlappedWindows is modified to ignore overlapping |
| 395 | * top-level windows. |
| 396 | */ |
| 397 | static Bool |
| 398 | RootlessMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst, |
| 399 | WindowPtr *ppLayerWin) |
| 400 | { |
| 401 | RegionRec saveRoot; |
| 402 | Bool result; |
| 403 | ScreenPtr pScreen = pWin->drawable.pScreen; |
| 404 | |
| 405 | SCREEN_UNWRAP(pScreen, MarkOverlappedWindows); |
| 406 | RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS start "); |
| 407 | |
| 408 | HUGE_ROOT(pWin); |
| 409 | if (IsRoot(pWin)) { |
| 410 | // root - mark nothing |
| 411 | RL_DEBUG_MSG("is root not marking "); |
| 412 | result = FALSE; |
| 413 | } |
| 414 | else if (!IsTopLevel(pWin)) { |
| 415 | // not top-level window - mark normally |
| 416 | result = pScreen->MarkOverlappedWindows(pWin, pFirst, ppLayerWin); |
| 417 | } |
| 418 | else { |
| 419 | //top-level window - mark children ONLY - NO overlaps with sibs (?) |
| 420 | // This code copied from miMarkOverlappedWindows() |
| 421 | |
| 422 | register WindowPtr pChild; |
| 423 | Bool anyMarked = FALSE; |
| 424 | MarkWindowProcPtr MarkWindow = pScreen->MarkWindow; |
| 425 | |
| 426 | RL_DEBUG_MSG("is top level! "); |
| 427 | /* single layered systems are easy */ |
| 428 | if (ppLayerWin) |
| 429 | *ppLayerWin = pWin; |
| 430 | |
| 431 | if (pWin == pFirst) { |
| 432 | /* Blindly mark pWin and all of its inferiors. This is a slight |
| 433 | * overkill if there are mapped windows that outside pWin's border, |
| 434 | * but it's better than wasting time on RectIn checks. |
| 435 | */ |
| 436 | pChild = pWin; |
| 437 | while (1) { |
| 438 | if (pChild->viewable) { |
| 439 | if (RegionBroken(&pChild->winSize)) |
| 440 | SetWinSize(pChild); |
| 441 | if (RegionBroken(&pChild->borderSize)) |
| 442 | SetBorderSize(pChild); |
| 443 | (*MarkWindow) (pChild); |
| 444 | if (pChild->firstChild) { |
| 445 | pChild = pChild->firstChild; |
| 446 | continue; |
| 447 | } |
| 448 | } |
| 449 | while (!pChild->nextSib && (pChild != pWin)) |
| 450 | pChild = pChild->parent; |
| 451 | if (pChild == pWin) |
| 452 | break; |
| 453 | pChild = pChild->nextSib; |
| 454 | } |
| 455 | anyMarked = TRUE; |
| 456 | } |
| 457 | if (anyMarked) |
| 458 | (*MarkWindow) (pWin->parent); |
| 459 | result = anyMarked; |
| 460 | } |
| 461 | NORMAL_ROOT(pWin); |
| 462 | SCREEN_WRAP(pScreen, MarkOverlappedWindows); |
| 463 | RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS end\n"); |
| 464 | |
| 465 | return result; |
| 466 | } |
| 467 | |
| 468 | static void |
| 469 | expose_1(WindowPtr pWin) |
| 470 | { |
| 471 | WindowPtr pChild; |
| 472 | |
| 473 | if (!pWin->realized) |
| 474 | return; |
| 475 | |
| 476 | miPaintWindow(pWin, &pWin->borderClip, PW_BACKGROUND); |
| 477 | |
| 478 | /* FIXME: comments in windowstr.h indicate that borderClip doesn't |
| 479 | include subwindow visibility. But I'm not so sure.. so we may |
| 480 | be exposing too much.. */ |
| 481 | |
| 482 | miSendExposures(pWin, &pWin->borderClip, |
| 483 | pWin->drawable.x, pWin->drawable.y); |
| 484 | |
| 485 | for (pChild = pWin->firstChild; pChild != NULL; pChild = pChild->nextSib) |
| 486 | expose_1(pChild); |
| 487 | } |
| 488 | |
| 489 | void |
| 490 | RootlessScreenExpose(ScreenPtr pScreen) |
| 491 | { |
| 492 | expose_1(pScreen->root); |
| 493 | } |
| 494 | |
| 495 | ColormapPtr |
| 496 | RootlessGetColormap(ScreenPtr pScreen) |
| 497 | { |
| 498 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 499 | |
| 500 | return s->colormap; |
| 501 | } |
| 502 | |
| 503 | static void |
| 504 | RootlessInstallColormap(ColormapPtr pMap) |
| 505 | { |
| 506 | ScreenPtr pScreen = pMap->pScreen; |
| 507 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 508 | |
| 509 | SCREEN_UNWRAP(pScreen, InstallColormap); |
| 510 | |
| 511 | if (s->colormap != pMap) { |
| 512 | s->colormap = pMap; |
| 513 | s->colormap_changed = TRUE; |
| 514 | RootlessQueueRedisplay(pScreen); |
| 515 | } |
| 516 | |
| 517 | pScreen->InstallColormap(pMap); |
| 518 | |
| 519 | SCREEN_WRAP(pScreen, InstallColormap); |
| 520 | } |
| 521 | |
| 522 | static void |
| 523 | RootlessUninstallColormap(ColormapPtr pMap) |
| 524 | { |
| 525 | ScreenPtr pScreen = pMap->pScreen; |
| 526 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 527 | |
| 528 | SCREEN_UNWRAP(pScreen, UninstallColormap); |
| 529 | |
| 530 | if (s->colormap == pMap) |
| 531 | s->colormap = NULL; |
| 532 | |
| 533 | pScreen->UninstallColormap(pMap); |
| 534 | |
| 535 | SCREEN_WRAP(pScreen, UninstallColormap); |
| 536 | } |
| 537 | |
| 538 | static void |
| 539 | RootlessStoreColors(ColormapPtr pMap, int ndef, xColorItem * pdef) |
| 540 | { |
| 541 | ScreenPtr pScreen = pMap->pScreen; |
| 542 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 543 | |
| 544 | SCREEN_UNWRAP(pScreen, StoreColors); |
| 545 | |
| 546 | if (s->colormap == pMap && ndef > 0) { |
| 547 | s->colormap_changed = TRUE; |
| 548 | RootlessQueueRedisplay(pScreen); |
| 549 | } |
| 550 | |
| 551 | pScreen->StoreColors(pMap, ndef, pdef); |
| 552 | |
| 553 | SCREEN_WRAP(pScreen, StoreColors); |
| 554 | } |
| 555 | |
| 556 | static CARD32 |
| 557 | RootlessRedisplayCallback(OsTimerPtr timer, CARD32 time, void *arg) |
| 558 | { |
| 559 | RootlessScreenRec *screenRec = arg; |
| 560 | |
| 561 | if (!screenRec->redisplay_queued) { |
| 562 | /* No update needed. Stop the timer. */ |
| 563 | |
| 564 | screenRec->redisplay_timer_set = FALSE; |
| 565 | return 0; |
| 566 | } |
| 567 | |
| 568 | screenRec->redisplay_queued = FALSE; |
| 569 | |
| 570 | /* Mark that we should redisplay before waiting for I/O next time */ |
| 571 | screenRec->redisplay_expired = TRUE; |
| 572 | |
| 573 | /* Reinstall the timer immediately, so we get as close to our |
| 574 | redisplay interval as possible. */ |
| 575 | |
| 576 | return ROOTLESS_REDISPLAY_DELAY; |
| 577 | } |
| 578 | |
| 579 | /* |
| 580 | * RootlessQueueRedisplay |
| 581 | * Queue a redisplay after a timer delay to ensure we do not redisplay |
| 582 | * too frequently. |
| 583 | */ |
| 584 | void |
| 585 | RootlessQueueRedisplay(ScreenPtr pScreen) |
| 586 | { |
| 587 | RootlessScreenRec *screenRec = SCREENREC(pScreen); |
| 588 | |
| 589 | screenRec->redisplay_queued = TRUE; |
| 590 | |
| 591 | if (screenRec->redisplay_timer_set) |
| 592 | return; |
| 593 | |
| 594 | screenRec->redisplay_timer = TimerSet(screenRec->redisplay_timer, |
| 595 | 0, ROOTLESS_REDISPLAY_DELAY, |
| 596 | RootlessRedisplayCallback, screenRec); |
| 597 | screenRec->redisplay_timer_set = TRUE; |
| 598 | } |
| 599 | |
| 600 | /* |
| 601 | * RootlessBlockHandler |
| 602 | * If the redisplay timer has expired, flush drawing before blocking |
| 603 | * on select(). |
| 604 | */ |
| 605 | static void |
| 606 | RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask) |
| 607 | { |
| 608 | ScreenPtr pScreen = pbdata; |
| 609 | RootlessScreenRec *screenRec = SCREENREC(pScreen); |
| 610 | |
| 611 | if (screenRec->redisplay_expired) { |
| 612 | screenRec->redisplay_expired = FALSE; |
| 613 | |
| 614 | RootlessRedisplayScreen(pScreen); |
| 615 | } |
| 616 | } |
| 617 | |
| 618 | static void |
| 619 | RootlessWakeupHandler(pointer data, int i, pointer LastSelectMask) |
| 620 | { |
| 621 | // nothing here |
| 622 | } |
| 623 | |
| 624 | static Bool |
| 625 | RootlessAllocatePrivates(ScreenPtr pScreen) |
| 626 | { |
| 627 | RootlessScreenRec *s; |
| 628 | |
| 629 | if (!dixRegisterPrivateKey |
| 630 | (&rootlessGCPrivateKeyRec, PRIVATE_GC, sizeof(RootlessGCRec))) |
| 631 | return FALSE; |
| 632 | if (!dixRegisterPrivateKey(&rootlessScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) |
| 633 | return FALSE; |
| 634 | if (!dixRegisterPrivateKey(&rootlessWindowPrivateKeyRec, PRIVATE_WINDOW, 0)) |
| 635 | return FALSE; |
| 636 | if (!dixRegisterPrivateKey |
| 637 | (&rootlessWindowOldPixmapPrivateKeyRec, PRIVATE_WINDOW, 0)) |
| 638 | return FALSE; |
| 639 | |
| 640 | s = malloc(sizeof(RootlessScreenRec)); |
| 641 | if (!s) |
| 642 | return FALSE; |
| 643 | SETSCREENREC(pScreen, s); |
| 644 | |
| 645 | s->pixmap_data = NULL; |
| 646 | s->pixmap_data_size = 0; |
| 647 | |
| 648 | s->redisplay_timer = NULL; |
| 649 | s->redisplay_timer_set = FALSE; |
| 650 | |
| 651 | return TRUE; |
| 652 | } |
| 653 | |
| 654 | static void |
| 655 | RootlessWrap(ScreenPtr pScreen) |
| 656 | { |
| 657 | RootlessScreenRec *s = SCREENREC(pScreen); |
| 658 | |
| 659 | #define WRAP(a) \ |
| 660 | if (pScreen->a) { \ |
| 661 | s->a = pScreen->a; \ |
| 662 | } else { \ |
| 663 | RL_DEBUG_MSG("null screen fn " #a "\n"); \ |
| 664 | s->a = NULL; \ |
| 665 | } \ |
| 666 | pScreen->a = Rootless##a |
| 667 | |
| 668 | WRAP(CreateScreenResources); |
| 669 | WRAP(CloseScreen); |
| 670 | WRAP(CreateGC); |
| 671 | WRAP(CopyWindow); |
| 672 | WRAP(GetImage); |
| 673 | WRAP(SourceValidate); |
| 674 | WRAP(CreateWindow); |
| 675 | WRAP(DestroyWindow); |
| 676 | WRAP(RealizeWindow); |
| 677 | WRAP(UnrealizeWindow); |
| 678 | WRAP(MoveWindow); |
| 679 | WRAP(PositionWindow); |
| 680 | WRAP(ResizeWindow); |
| 681 | WRAP(RestackWindow); |
| 682 | WRAP(ReparentWindow); |
| 683 | WRAP(ChangeBorderWidth); |
| 684 | WRAP(MarkOverlappedWindows); |
| 685 | WRAP(ValidateTree); |
| 686 | WRAP(ChangeWindowAttributes); |
| 687 | WRAP(InstallColormap); |
| 688 | WRAP(UninstallColormap); |
| 689 | WRAP(StoreColors); |
| 690 | |
| 691 | WRAP(SetShape); |
| 692 | |
| 693 | { |
| 694 | // Composite and Glyphs don't use normal screen wrapping |
| 695 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 696 | |
| 697 | s->Composite = ps->Composite; |
| 698 | ps->Composite = RootlessComposite; |
| 699 | s->Glyphs = ps->Glyphs; |
| 700 | ps->Glyphs = RootlessGlyphs; |
| 701 | } |
| 702 | |
| 703 | // WRAP(ClearToBackground); fixme put this back? useful for shaped wins? |
| 704 | |
| 705 | #undef WRAP |
| 706 | } |
| 707 | |
| 708 | /* |
| 709 | * RootlessInit |
| 710 | * Called by the rootless implementation to initialize the rootless layer. |
| 711 | * Rootless wraps lots of stuff and needs a bunch of devPrivates. |
| 712 | */ |
| 713 | Bool |
| 714 | RootlessInit(ScreenPtr pScreen, RootlessFrameProcsPtr procs) |
| 715 | { |
| 716 | RootlessScreenRec *s; |
| 717 | |
| 718 | if (!RootlessAllocatePrivates(pScreen)) |
| 719 | return FALSE; |
| 720 | |
| 721 | s = SCREENREC(pScreen); |
| 722 | |
| 723 | s->imp = procs; |
| 724 | s->colormap = NULL; |
| 725 | s->redisplay_expired = FALSE; |
| 726 | |
| 727 | RootlessWrap(pScreen); |
| 728 | |
| 729 | if (!RegisterBlockAndWakeupHandlers(RootlessBlockHandler, |
| 730 | RootlessWakeupHandler, |
| 731 | (pointer) pScreen)) { |
| 732 | return FALSE; |
| 733 | } |
| 734 | |
| 735 | return TRUE; |
| 736 | } |
| 737 | |
| 738 | void |
| 739 | RootlessUpdateRooted(Bool state) |
| 740 | { |
| 741 | int i; |
| 742 | |
| 743 | if (!state) { |
| 744 | for (i = 0; i < screenInfo.numScreens; i++) |
| 745 | RootlessDisableRoot(screenInfo.screens[i]); |
| 746 | } |
| 747 | else { |
| 748 | for (i = 0; i < screenInfo.numScreens; i++) |
| 749 | RootlessEnableRoot(screenInfo.screens[i]); |
| 750 | } |
| 751 | } |