| 1 | /* |
| 2 | * |
| 3 | * Copyright © 2000 SuSE, Inc. |
| 4 | * |
| 5 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 6 | * documentation for any purpose is hereby granted without fee, provided that |
| 7 | * the above copyright notice appear in all copies and that both that |
| 8 | * copyright notice and this permission notice appear in supporting |
| 9 | * documentation, and that the name of SuSE not be used in advertising or |
| 10 | * publicity pertaining to distribution of the software without specific, |
| 11 | * written prior permission. SuSE makes no representations about the |
| 12 | * suitability of this software for any purpose. It is provided "as is" |
| 13 | * without express or implied warranty. |
| 14 | * |
| 15 | * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL |
| 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE |
| 17 | * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 18 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 19 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 20 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 21 | * |
| 22 | * Author: Keith Packard, SuSE, Inc. |
| 23 | */ |
| 24 | |
| 25 | #ifdef HAVE_DIX_CONFIG_H |
| 26 | #include <dix-config.h> |
| 27 | #endif |
| 28 | |
| 29 | #include "xsha1.h" |
| 30 | |
| 31 | #include "misc.h" |
| 32 | #include "scrnintstr.h" |
| 33 | #include "os.h" |
| 34 | #include "regionstr.h" |
| 35 | #include "validate.h" |
| 36 | #include "windowstr.h" |
| 37 | #include "input.h" |
| 38 | #include "resource.h" |
| 39 | #include "colormapst.h" |
| 40 | #include "cursorstr.h" |
| 41 | #include "dixstruct.h" |
| 42 | #include "gcstruct.h" |
| 43 | #include "servermd.h" |
| 44 | #include "picturestr.h" |
| 45 | #include "glyphstr.h" |
| 46 | #include "mipict.h" |
| 47 | |
| 48 | /* |
| 49 | * From Knuth -- a good choice for hash/rehash values is p, p-2 where |
| 50 | * p and p-2 are both prime. These tables are sized to have an extra 10% |
| 51 | * free to avoid exponential performance degradation as the hash table fills |
| 52 | */ |
| 53 | static GlyphHashSetRec glyphHashSets[] = { |
| 54 | {32, 43, 41}, |
| 55 | {64, 73, 71}, |
| 56 | {128, 151, 149}, |
| 57 | {256, 283, 281}, |
| 58 | {512, 571, 569}, |
| 59 | {1024, 1153, 1151}, |
| 60 | {2048, 2269, 2267}, |
| 61 | {4096, 4519, 4517}, |
| 62 | {8192, 9013, 9011}, |
| 63 | {16384, 18043, 18041}, |
| 64 | {32768, 36109, 36107}, |
| 65 | {65536, 72091, 72089}, |
| 66 | {131072, 144409, 144407}, |
| 67 | {262144, 288361, 288359}, |
| 68 | {524288, 576883, 576881}, |
| 69 | {1048576, 1153459, 1153457}, |
| 70 | {2097152, 2307163, 2307161}, |
| 71 | {4194304, 4613893, 4613891}, |
| 72 | {8388608, 9227641, 9227639}, |
| 73 | {16777216, 18455029, 18455027}, |
| 74 | {33554432, 36911011, 36911009}, |
| 75 | {67108864, 73819861, 73819859}, |
| 76 | {134217728, 147639589, 147639587}, |
| 77 | {268435456, 295279081, 295279079}, |
| 78 | {536870912, 590559793, 590559791} |
| 79 | }; |
| 80 | |
| 81 | #define NGLYPHHASHSETS (sizeof(glyphHashSets)/sizeof(glyphHashSets[0])) |
| 82 | |
| 83 | static GlyphHashRec globalGlyphs[GlyphFormatNum]; |
| 84 | |
| 85 | void |
| 86 | GlyphUninit(ScreenPtr pScreen) |
| 87 | { |
| 88 | PictureScreenPtr ps = GetPictureScreen(pScreen); |
| 89 | GlyphPtr glyph; |
| 90 | int fdepth, i; |
| 91 | |
| 92 | for (fdepth = 0; fdepth < GlyphFormatNum; fdepth++) { |
| 93 | if (!globalGlyphs[fdepth].hashSet) |
| 94 | continue; |
| 95 | |
| 96 | for (i = 0; i < globalGlyphs[fdepth].hashSet->size; i++) { |
| 97 | glyph = globalGlyphs[fdepth].table[i].glyph; |
| 98 | if (glyph && glyph != DeletedGlyph) { |
| 99 | if (GetGlyphPicture(glyph, pScreen)) { |
| 100 | FreePicture((pointer) GetGlyphPicture(glyph, pScreen), 0); |
| 101 | SetGlyphPicture(glyph, pScreen, NULL); |
| 102 | } |
| 103 | (*ps->UnrealizeGlyph) (pScreen, glyph); |
| 104 | } |
| 105 | } |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | GlyphHashSetPtr |
| 110 | FindGlyphHashSet(CARD32 filled) |
| 111 | { |
| 112 | int i; |
| 113 | |
| 114 | for (i = 0; i < NGLYPHHASHSETS; i++) |
| 115 | if (glyphHashSets[i].entries >= filled) |
| 116 | return &glyphHashSets[i]; |
| 117 | return 0; |
| 118 | } |
| 119 | |
| 120 | GlyphRefPtr |
| 121 | FindGlyphRef(GlyphHashPtr hash, |
| 122 | CARD32 signature, Bool match, unsigned char sha1[20]) |
| 123 | { |
| 124 | CARD32 elt, step, s; |
| 125 | GlyphPtr glyph; |
| 126 | GlyphRefPtr table, gr, del; |
| 127 | CARD32 tableSize = hash->hashSet->size; |
| 128 | |
| 129 | table = hash->table; |
| 130 | elt = signature % tableSize; |
| 131 | step = 0; |
| 132 | del = 0; |
| 133 | for (;;) { |
| 134 | gr = &table[elt]; |
| 135 | s = gr->signature; |
| 136 | glyph = gr->glyph; |
| 137 | if (!glyph) { |
| 138 | if (del) |
| 139 | gr = del; |
| 140 | break; |
| 141 | } |
| 142 | if (glyph == DeletedGlyph) { |
| 143 | if (!del) |
| 144 | del = gr; |
| 145 | else if (gr == del) |
| 146 | break; |
| 147 | } |
| 148 | else if (s == signature && |
| 149 | (!match || memcmp(glyph->sha1, sha1, 20) == 0)) { |
| 150 | break; |
| 151 | } |
| 152 | if (!step) { |
| 153 | step = signature % hash->hashSet->rehash; |
| 154 | if (!step) |
| 155 | step = 1; |
| 156 | } |
| 157 | elt += step; |
| 158 | if (elt >= tableSize) |
| 159 | elt -= tableSize; |
| 160 | } |
| 161 | return gr; |
| 162 | } |
| 163 | |
| 164 | int |
| 165 | HashGlyph(xGlyphInfo * gi, |
| 166 | CARD8 *bits, unsigned long size, unsigned char sha1[20]) |
| 167 | { |
| 168 | void *ctx = x_sha1_init(); |
| 169 | int success; |
| 170 | |
| 171 | if (!ctx) |
| 172 | return BadAlloc; |
| 173 | |
| 174 | success = x_sha1_update(ctx, gi, sizeof(xGlyphInfo)); |
| 175 | if (!success) |
| 176 | return BadAlloc; |
| 177 | success = x_sha1_update(ctx, bits, size); |
| 178 | if (!success) |
| 179 | return BadAlloc; |
| 180 | success = x_sha1_final(ctx, sha1); |
| 181 | if (!success) |
| 182 | return BadAlloc; |
| 183 | return Success; |
| 184 | } |
| 185 | |
| 186 | GlyphPtr |
| 187 | FindGlyphByHash(unsigned char sha1[20], int format) |
| 188 | { |
| 189 | GlyphRefPtr gr; |
| 190 | CARD32 signature = *(CARD32 *) sha1; |
| 191 | |
| 192 | if (!globalGlyphs[format].hashSet) |
| 193 | return NULL; |
| 194 | |
| 195 | gr = FindGlyphRef(&globalGlyphs[format], signature, TRUE, sha1); |
| 196 | |
| 197 | if (gr->glyph && gr->glyph != DeletedGlyph) |
| 198 | return gr->glyph; |
| 199 | else |
| 200 | return NULL; |
| 201 | } |
| 202 | |
| 203 | #ifdef CHECK_DUPLICATES |
| 204 | void |
| 205 | DuplicateRef(GlyphPtr glyph, char *where) |
| 206 | { |
| 207 | ErrorF("Duplicate Glyph 0x%x from %s\n", glyph, where); |
| 208 | } |
| 209 | |
| 210 | void |
| 211 | CheckDuplicates(GlyphHashPtr hash, char *where) |
| 212 | { |
| 213 | GlyphPtr g; |
| 214 | int i, j; |
| 215 | |
| 216 | for (i = 0; i < hash->hashSet->size; i++) { |
| 217 | g = hash->table[i].glyph; |
| 218 | if (!g || g == DeletedGlyph) |
| 219 | continue; |
| 220 | for (j = i + 1; j < hash->hashSet->size; j++) |
| 221 | if (hash->table[j].glyph == g) |
| 222 | DuplicateRef(g, where); |
| 223 | } |
| 224 | } |
| 225 | #else |
| 226 | #define CheckDuplicates(a,b) |
| 227 | #define DuplicateRef(a,b) |
| 228 | #endif |
| 229 | |
| 230 | static void |
| 231 | FreeGlyphPicture(GlyphPtr glyph) |
| 232 | { |
| 233 | PictureScreenPtr ps; |
| 234 | int i; |
| 235 | |
| 236 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 237 | ScreenPtr pScreen = screenInfo.screens[i]; |
| 238 | |
| 239 | if (GetGlyphPicture(glyph, pScreen)) |
| 240 | FreePicture((pointer) GetGlyphPicture(glyph, pScreen), 0); |
| 241 | |
| 242 | ps = GetPictureScreenIfSet(pScreen); |
| 243 | if (ps) |
| 244 | (*ps->UnrealizeGlyph) (pScreen, glyph); |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | void |
| 249 | FreeGlyph(GlyphPtr glyph, int format) |
| 250 | { |
| 251 | CheckDuplicates(&globalGlyphs[format], "FreeGlyph"); |
| 252 | if (--glyph->refcnt == 0) { |
| 253 | GlyphRefPtr gr; |
| 254 | int i; |
| 255 | int first; |
| 256 | CARD32 signature; |
| 257 | |
| 258 | first = -1; |
| 259 | for (i = 0; i < globalGlyphs[format].hashSet->size; i++) |
| 260 | if (globalGlyphs[format].table[i].glyph == glyph) { |
| 261 | if (first != -1) |
| 262 | DuplicateRef(glyph, "FreeGlyph check"); |
| 263 | first = i; |
| 264 | } |
| 265 | |
| 266 | signature = *(CARD32 *) glyph->sha1; |
| 267 | gr = FindGlyphRef(&globalGlyphs[format], signature, TRUE, glyph->sha1); |
| 268 | if (gr - globalGlyphs[format].table != first) |
| 269 | DuplicateRef(glyph, "Found wrong one"); |
| 270 | if (gr->glyph && gr->glyph != DeletedGlyph) { |
| 271 | gr->glyph = DeletedGlyph; |
| 272 | gr->signature = 0; |
| 273 | globalGlyphs[format].tableEntries--; |
| 274 | } |
| 275 | |
| 276 | FreeGlyphPicture(glyph); |
| 277 | dixFreeObjectWithPrivates(glyph, PRIVATE_GLYPH); |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | void |
| 282 | AddGlyph(GlyphSetPtr glyphSet, GlyphPtr glyph, Glyph id) |
| 283 | { |
| 284 | GlyphRefPtr gr; |
| 285 | CARD32 signature; |
| 286 | |
| 287 | CheckDuplicates(&globalGlyphs[glyphSet->fdepth], "AddGlyph top global"); |
| 288 | /* Locate existing matching glyph */ |
| 289 | signature = *(CARD32 *) glyph->sha1; |
| 290 | gr = FindGlyphRef(&globalGlyphs[glyphSet->fdepth], signature, |
| 291 | TRUE, glyph->sha1); |
| 292 | if (gr->glyph && gr->glyph != DeletedGlyph && gr->glyph != glyph) { |
| 293 | FreeGlyphPicture(glyph); |
| 294 | dixFreeObjectWithPrivates(glyph, PRIVATE_GLYPH); |
| 295 | glyph = gr->glyph; |
| 296 | } |
| 297 | else if (gr->glyph != glyph) { |
| 298 | gr->glyph = glyph; |
| 299 | gr->signature = signature; |
| 300 | globalGlyphs[glyphSet->fdepth].tableEntries++; |
| 301 | } |
| 302 | |
| 303 | /* Insert/replace glyphset value */ |
| 304 | gr = FindGlyphRef(&glyphSet->hash, id, FALSE, 0); |
| 305 | ++glyph->refcnt; |
| 306 | if (gr->glyph && gr->glyph != DeletedGlyph) |
| 307 | FreeGlyph(gr->glyph, glyphSet->fdepth); |
| 308 | else |
| 309 | glyphSet->hash.tableEntries++; |
| 310 | gr->glyph = glyph; |
| 311 | gr->signature = id; |
| 312 | CheckDuplicates(&globalGlyphs[glyphSet->fdepth], "AddGlyph bottom"); |
| 313 | } |
| 314 | |
| 315 | Bool |
| 316 | DeleteGlyph(GlyphSetPtr glyphSet, Glyph id) |
| 317 | { |
| 318 | GlyphRefPtr gr; |
| 319 | GlyphPtr glyph; |
| 320 | |
| 321 | gr = FindGlyphRef(&glyphSet->hash, id, FALSE, 0); |
| 322 | glyph = gr->glyph; |
| 323 | if (glyph && glyph != DeletedGlyph) { |
| 324 | gr->glyph = DeletedGlyph; |
| 325 | glyphSet->hash.tableEntries--; |
| 326 | FreeGlyph(glyph, glyphSet->fdepth); |
| 327 | return TRUE; |
| 328 | } |
| 329 | return FALSE; |
| 330 | } |
| 331 | |
| 332 | GlyphPtr |
| 333 | FindGlyph(GlyphSetPtr glyphSet, Glyph id) |
| 334 | { |
| 335 | GlyphPtr glyph; |
| 336 | |
| 337 | glyph = FindGlyphRef(&glyphSet->hash, id, FALSE, 0)->glyph; |
| 338 | if (glyph == DeletedGlyph) |
| 339 | glyph = 0; |
| 340 | return glyph; |
| 341 | } |
| 342 | |
| 343 | GlyphPtr |
| 344 | AllocateGlyph(xGlyphInfo * gi, int fdepth) |
| 345 | { |
| 346 | PictureScreenPtr ps; |
| 347 | int size; |
| 348 | GlyphPtr glyph; |
| 349 | int i; |
| 350 | int head_size; |
| 351 | |
| 352 | head_size = sizeof(GlyphRec) + screenInfo.numScreens * sizeof(PicturePtr); |
| 353 | size = (head_size + dixPrivatesSize(PRIVATE_GLYPH)); |
| 354 | glyph = (GlyphPtr) malloc(size); |
| 355 | if (!glyph) |
| 356 | return 0; |
| 357 | glyph->refcnt = 0; |
| 358 | glyph->size = size + sizeof(xGlyphInfo); |
| 359 | glyph->info = *gi; |
| 360 | dixInitPrivates(glyph, (char *) glyph + head_size, PRIVATE_GLYPH); |
| 361 | |
| 362 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 363 | ScreenPtr pScreen = screenInfo.screens[i]; |
| 364 | SetGlyphPicture(glyph, pScreen, NULL); |
| 365 | ps = GetPictureScreenIfSet(pScreen); |
| 366 | |
| 367 | if (ps) { |
| 368 | if (!(*ps->RealizeGlyph) (pScreen, glyph)) |
| 369 | goto bail; |
| 370 | } |
| 371 | } |
| 372 | |
| 373 | return glyph; |
| 374 | |
| 375 | bail: |
| 376 | while (i--) { |
| 377 | ps = GetPictureScreenIfSet(screenInfo.screens[i]); |
| 378 | if (ps) |
| 379 | (*ps->UnrealizeGlyph) (screenInfo.screens[i], glyph); |
| 380 | } |
| 381 | |
| 382 | dixFreeObjectWithPrivates(glyph, PRIVATE_GLYPH); |
| 383 | return 0; |
| 384 | } |
| 385 | |
| 386 | Bool |
| 387 | AllocateGlyphHash(GlyphHashPtr hash, GlyphHashSetPtr hashSet) |
| 388 | { |
| 389 | hash->table = calloc(hashSet->size, sizeof(GlyphRefRec)); |
| 390 | if (!hash->table) |
| 391 | return FALSE; |
| 392 | hash->hashSet = hashSet; |
| 393 | hash->tableEntries = 0; |
| 394 | return TRUE; |
| 395 | } |
| 396 | |
| 397 | Bool |
| 398 | ResizeGlyphHash(GlyphHashPtr hash, CARD32 change, Bool global) |
| 399 | { |
| 400 | CARD32 tableEntries; |
| 401 | GlyphHashSetPtr hashSet; |
| 402 | GlyphHashRec newHash; |
| 403 | GlyphRefPtr gr; |
| 404 | GlyphPtr glyph; |
| 405 | int i; |
| 406 | int oldSize; |
| 407 | CARD32 s; |
| 408 | |
| 409 | tableEntries = hash->tableEntries + change; |
| 410 | hashSet = FindGlyphHashSet(tableEntries); |
| 411 | if (hashSet == hash->hashSet) |
| 412 | return TRUE; |
| 413 | if (global) |
| 414 | CheckDuplicates(hash, "ResizeGlyphHash top"); |
| 415 | if (!AllocateGlyphHash(&newHash, hashSet)) |
| 416 | return FALSE; |
| 417 | if (hash->table) { |
| 418 | oldSize = hash->hashSet->size; |
| 419 | for (i = 0; i < oldSize; i++) { |
| 420 | glyph = hash->table[i].glyph; |
| 421 | if (glyph && glyph != DeletedGlyph) { |
| 422 | s = hash->table[i].signature; |
| 423 | gr = FindGlyphRef(&newHash, s, global, glyph->sha1); |
| 424 | |
| 425 | gr->signature = s; |
| 426 | gr->glyph = glyph; |
| 427 | ++newHash.tableEntries; |
| 428 | } |
| 429 | } |
| 430 | free(hash->table); |
| 431 | } |
| 432 | *hash = newHash; |
| 433 | if (global) |
| 434 | CheckDuplicates(hash, "ResizeGlyphHash bottom"); |
| 435 | return TRUE; |
| 436 | } |
| 437 | |
| 438 | Bool |
| 439 | ResizeGlyphSet(GlyphSetPtr glyphSet, CARD32 change) |
| 440 | { |
| 441 | return (ResizeGlyphHash(&glyphSet->hash, change, FALSE) && |
| 442 | ResizeGlyphHash(&globalGlyphs[glyphSet->fdepth], change, TRUE)); |
| 443 | } |
| 444 | |
| 445 | GlyphSetPtr |
| 446 | AllocateGlyphSet(int fdepth, PictFormatPtr format) |
| 447 | { |
| 448 | GlyphSetPtr glyphSet; |
| 449 | |
| 450 | if (!globalGlyphs[fdepth].hashSet) { |
| 451 | if (!AllocateGlyphHash(&globalGlyphs[fdepth], &glyphHashSets[0])) |
| 452 | return FALSE; |
| 453 | } |
| 454 | |
| 455 | glyphSet = dixAllocateObjectWithPrivates(GlyphSetRec, PRIVATE_GLYPHSET); |
| 456 | if (!glyphSet) |
| 457 | return FALSE; |
| 458 | |
| 459 | if (!AllocateGlyphHash(&glyphSet->hash, &glyphHashSets[0])) { |
| 460 | free(glyphSet); |
| 461 | return FALSE; |
| 462 | } |
| 463 | glyphSet->refcnt = 1; |
| 464 | glyphSet->fdepth = fdepth; |
| 465 | glyphSet->format = format; |
| 466 | return glyphSet; |
| 467 | } |
| 468 | |
| 469 | int |
| 470 | FreeGlyphSet(pointer value, XID gid) |
| 471 | { |
| 472 | GlyphSetPtr glyphSet = (GlyphSetPtr) value; |
| 473 | |
| 474 | if (--glyphSet->refcnt == 0) { |
| 475 | CARD32 i, tableSize = glyphSet->hash.hashSet->size; |
| 476 | GlyphRefPtr table = glyphSet->hash.table; |
| 477 | GlyphPtr glyph; |
| 478 | |
| 479 | for (i = 0; i < tableSize; i++) { |
| 480 | glyph = table[i].glyph; |
| 481 | if (glyph && glyph != DeletedGlyph) |
| 482 | FreeGlyph(glyph, glyphSet->fdepth); |
| 483 | } |
| 484 | if (!globalGlyphs[glyphSet->fdepth].tableEntries) { |
| 485 | free(globalGlyphs[glyphSet->fdepth].table); |
| 486 | globalGlyphs[glyphSet->fdepth].table = 0; |
| 487 | globalGlyphs[glyphSet->fdepth].hashSet = 0; |
| 488 | } |
| 489 | else |
| 490 | ResizeGlyphHash(&globalGlyphs[glyphSet->fdepth], 0, TRUE); |
| 491 | free(table); |
| 492 | dixFreeObjectWithPrivates(glyphSet, PRIVATE_GLYPHSET); |
| 493 | } |
| 494 | return Success; |
| 495 | } |
| 496 | |
| 497 | static void |
| 498 | GlyphExtents(int nlist, GlyphListPtr list, GlyphPtr * glyphs, BoxPtr extents) |
| 499 | { |
| 500 | int x1, x2, y1, y2; |
| 501 | int n; |
| 502 | GlyphPtr glyph; |
| 503 | int x, y; |
| 504 | |
| 505 | x = 0; |
| 506 | y = 0; |
| 507 | extents->x1 = MAXSHORT; |
| 508 | extents->x2 = MINSHORT; |
| 509 | extents->y1 = MAXSHORT; |
| 510 | extents->y2 = MINSHORT; |
| 511 | while (nlist--) { |
| 512 | x += list->xOff; |
| 513 | y += list->yOff; |
| 514 | n = list->len; |
| 515 | list++; |
| 516 | while (n--) { |
| 517 | glyph = *glyphs++; |
| 518 | x1 = x - glyph->info.x; |
| 519 | if (x1 < MINSHORT) |
| 520 | x1 = MINSHORT; |
| 521 | y1 = y - glyph->info.y; |
| 522 | if (y1 < MINSHORT) |
| 523 | y1 = MINSHORT; |
| 524 | x2 = x1 + glyph->info.width; |
| 525 | if (x2 > MAXSHORT) |
| 526 | x2 = MAXSHORT; |
| 527 | y2 = y1 + glyph->info.height; |
| 528 | if (y2 > MAXSHORT) |
| 529 | y2 = MAXSHORT; |
| 530 | if (x1 < extents->x1) |
| 531 | extents->x1 = x1; |
| 532 | if (x2 > extents->x2) |
| 533 | extents->x2 = x2; |
| 534 | if (y1 < extents->y1) |
| 535 | extents->y1 = y1; |
| 536 | if (y2 > extents->y2) |
| 537 | extents->y2 = y2; |
| 538 | x += glyph->info.xOff; |
| 539 | y += glyph->info.yOff; |
| 540 | } |
| 541 | } |
| 542 | } |
| 543 | |
| 544 | #define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0) |
| 545 | |
| 546 | void |
| 547 | CompositeGlyphs(CARD8 op, |
| 548 | PicturePtr pSrc, |
| 549 | PicturePtr pDst, |
| 550 | PictFormatPtr maskFormat, |
| 551 | INT16 xSrc, |
| 552 | INT16 ySrc, int nlist, GlyphListPtr lists, GlyphPtr * glyphs) |
| 553 | { |
| 554 | PictureScreenPtr ps = GetPictureScreen(pDst->pDrawable->pScreen); |
| 555 | |
| 556 | ValidatePicture(pSrc); |
| 557 | ValidatePicture(pDst); |
| 558 | (*ps->Glyphs) (op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, lists, |
| 559 | glyphs); |
| 560 | } |
| 561 | |
| 562 | Bool |
| 563 | miRealizeGlyph(ScreenPtr pScreen, GlyphPtr glyph) |
| 564 | { |
| 565 | return TRUE; |
| 566 | } |
| 567 | |
| 568 | void |
| 569 | miUnrealizeGlyph(ScreenPtr pScreen, GlyphPtr glyph) |
| 570 | { |
| 571 | } |
| 572 | |
| 573 | void |
| 574 | miGlyphs(CARD8 op, |
| 575 | PicturePtr pSrc, |
| 576 | PicturePtr pDst, |
| 577 | PictFormatPtr maskFormat, |
| 578 | INT16 xSrc, |
| 579 | INT16 ySrc, int nlist, GlyphListPtr list, GlyphPtr * glyphs) |
| 580 | { |
| 581 | PicturePtr pPicture; |
| 582 | PixmapPtr pMaskPixmap = 0; |
| 583 | PicturePtr pMask; |
| 584 | ScreenPtr pScreen = pDst->pDrawable->pScreen; |
| 585 | int width = 0, height = 0; |
| 586 | int x, y; |
| 587 | int xDst = list->xOff, yDst = list->yOff; |
| 588 | int n; |
| 589 | GlyphPtr glyph; |
| 590 | int error; |
| 591 | BoxRec extents = { 0, 0, 0, 0 }; |
| 592 | CARD32 component_alpha; |
| 593 | |
| 594 | if (maskFormat) { |
| 595 | GCPtr pGC; |
| 596 | xRectangle rect; |
| 597 | |
| 598 | GlyphExtents(nlist, list, glyphs, &extents); |
| 599 | |
| 600 | if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1) |
| 601 | return; |
| 602 | width = extents.x2 - extents.x1; |
| 603 | height = extents.y2 - extents.y1; |
| 604 | pMaskPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, |
| 605 | maskFormat->depth, |
| 606 | CREATE_PIXMAP_USAGE_SCRATCH); |
| 607 | if (!pMaskPixmap) |
| 608 | return; |
| 609 | component_alpha = NeedsComponent(maskFormat->format); |
| 610 | pMask = CreatePicture(0, &pMaskPixmap->drawable, |
| 611 | maskFormat, CPComponentAlpha, &component_alpha, |
| 612 | serverClient, &error); |
| 613 | if (!pMask) { |
| 614 | (*pScreen->DestroyPixmap) (pMaskPixmap); |
| 615 | return; |
| 616 | } |
| 617 | pGC = GetScratchGC(pMaskPixmap->drawable.depth, pScreen); |
| 618 | ValidateGC(&pMaskPixmap->drawable, pGC); |
| 619 | rect.x = 0; |
| 620 | rect.y = 0; |
| 621 | rect.width = width; |
| 622 | rect.height = height; |
| 623 | (*pGC->ops->PolyFillRect) (&pMaskPixmap->drawable, pGC, 1, &rect); |
| 624 | FreeScratchGC(pGC); |
| 625 | x = -extents.x1; |
| 626 | y = -extents.y1; |
| 627 | } |
| 628 | else { |
| 629 | pMask = pDst; |
| 630 | x = 0; |
| 631 | y = 0; |
| 632 | } |
| 633 | while (nlist--) { |
| 634 | x += list->xOff; |
| 635 | y += list->yOff; |
| 636 | n = list->len; |
| 637 | while (n--) { |
| 638 | glyph = *glyphs++; |
| 639 | pPicture = GetGlyphPicture(glyph, pScreen); |
| 640 | |
| 641 | if (pPicture) { |
| 642 | if (maskFormat) { |
| 643 | CompositePicture(PictOpAdd, |
| 644 | pPicture, |
| 645 | None, |
| 646 | pMask, |
| 647 | 0, 0, |
| 648 | 0, 0, |
| 649 | x - glyph->info.x, |
| 650 | y - glyph->info.y, |
| 651 | glyph->info.width, glyph->info.height); |
| 652 | } |
| 653 | else { |
| 654 | CompositePicture(op, |
| 655 | pSrc, |
| 656 | pPicture, |
| 657 | pDst, |
| 658 | xSrc + (x - glyph->info.x) - xDst, |
| 659 | ySrc + (y - glyph->info.y) - yDst, |
| 660 | 0, 0, |
| 661 | x - glyph->info.x, |
| 662 | y - glyph->info.y, |
| 663 | glyph->info.width, glyph->info.height); |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | x += glyph->info.xOff; |
| 668 | y += glyph->info.yOff; |
| 669 | } |
| 670 | list++; |
| 671 | } |
| 672 | if (maskFormat) { |
| 673 | x = extents.x1; |
| 674 | y = extents.y1; |
| 675 | CompositePicture(op, |
| 676 | pSrc, |
| 677 | pMask, |
| 678 | pDst, |
| 679 | xSrc + x - xDst, |
| 680 | ySrc + y - yDst, 0, 0, x, y, width, height); |
| 681 | FreePicture((pointer) pMask, (XID) 0); |
| 682 | (*pScreen->DestroyPixmap) (pMaskPixmap); |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | PicturePtr GetGlyphPicture(GlyphPtr glyph, ScreenPtr pScreen) |
| 687 | { |
| 688 | if (pScreen->isGPU) |
| 689 | return NULL; |
| 690 | return GlyphPicture(glyph)[pScreen->myNum]; |
| 691 | } |
| 692 | |
| 693 | void SetGlyphPicture(GlyphPtr glyph, ScreenPtr pScreen, PicturePtr picture) |
| 694 | { |
| 695 | GlyphPicture(glyph)[pScreen->myNum] = picture; |
| 696 | } |