| File: | root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c |
| Warning: | line 1254, column 6 Value stored to 'status' is never read |
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| 1 | /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ |
| 2 | /* cairo - a vector graphics library with display and print output |
| 3 | * |
| 4 | * Copyright © 2002 University of Southern California |
| 5 | * Copyright © 2005 Red Hat, Inc. |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it either under the terms of the GNU Lesser General Public |
| 9 | * License version 2.1 as published by the Free Software Foundation |
| 10 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
| 11 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
| 12 | * notice, a recipient may use your version of this file under either |
| 13 | * the MPL or the LGPL. |
| 14 | * |
| 15 | * You should have received a copy of the LGPL along with this library |
| 16 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
| 18 | * You should have received a copy of the MPL along with this library |
| 19 | * in the file COPYING-MPL-1.1 |
| 20 | * |
| 21 | * The contents of this file are subject to the Mozilla Public License |
| 22 | * Version 1.1 (the "License"); you may not use this file except in |
| 23 | * compliance with the License. You may obtain a copy of the License at |
| 24 | * http://www.mozilla.org/MPL/ |
| 25 | * |
| 26 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
| 27 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
| 28 | * the specific language governing rights and limitations. |
| 29 | * |
| 30 | * The Original Code is the cairo graphics library. |
| 31 | * |
| 32 | * The Initial Developer of the Original Code is University of Southern |
| 33 | * California. |
| 34 | * |
| 35 | * Contributor(s): |
| 36 | * Carl D. Worth <cworth@cworth.org> |
| 37 | * Behdad Esfahbod <behdad@behdad.org> |
| 38 | * Chris Wilson <chris@chris-wilson.co.uk> |
| 39 | * Karl Tomlinson <karlt+@karlt.net>, Mozilla Corporation |
| 40 | */ |
| 41 | |
| 42 | /* Heed well the words of Owen Taylor: |
| 43 | * "Any patch that works around a render bug, or claims to, without a |
| 44 | * specific reference to the bug filed in bugzilla.freedesktop.org will |
| 45 | * never pass approval." |
| 46 | */ |
| 47 | |
| 48 | #include "cairoint.h" |
| 49 | |
| 50 | /** |
| 51 | * CAIRO_HAS_XLIB_XCB_FUNCTIONS: |
| 52 | * |
| 53 | * Defined if Cairo has support for XCB integration with Xlib. |
| 54 | * This macro can be used to conditionally compile backend-specific code. |
| 55 | * |
| 56 | * Since: 1.10 |
| 57 | **/ |
| 58 | |
| 59 | #if !CAIRO_HAS_XLIB_XCB_FUNCTIONS |
| 60 | |
| 61 | #include "cairo-xlib-private.h" |
| 62 | #include "cairo-xlib-surface-private.h" |
| 63 | |
| 64 | #include "cairo-compositor-private.h" |
| 65 | #include "cairo-clip-private.h" |
| 66 | #include "cairo-damage-private.h" |
| 67 | #include "cairo-default-context-private.h" |
| 68 | #include "cairo-error-private.h" |
| 69 | #include "cairo-image-surface-private.h" |
| 70 | #include "cairo-list-inline.h" |
| 71 | #include "cairo-pattern-private.h" |
| 72 | #include "cairo-pixman-private.h" |
| 73 | #include "cairo-region-private.h" |
| 74 | #include "cairo-scaled-font-private.h" |
| 75 | #include "cairo-surface-snapshot-private.h" |
| 76 | #include "cairo-surface-subsurface-private.h" |
| 77 | |
| 78 | #include <X11/Xutil.h> /* for XDestroyImage */ |
| 79 | |
| 80 | #include <X11/extensions/XShm.h> |
| 81 | #include <sys/ipc.h> |
| 82 | #include <sys/shm.h> |
| 83 | |
| 84 | #define DEBUG0 0 |
| 85 | |
| 86 | #if DEBUG0 |
| 87 | #define UNSUPPORTED(reason)CAIRO_INT_STATUS_UNSUPPORTED \ |
| 88 | fprintf (stderrstderr, \ |
| 89 | "cairo-xlib: hit unsupported operation %s(), line %d: %s\n", \ |
| 90 | __FUNCTION__, __LINE__90, reason), \ |
| 91 | CAIRO_INT_STATUS_UNSUPPORTED |
| 92 | #else |
| 93 | #define UNSUPPORTED(reason)CAIRO_INT_STATUS_UNSUPPORTED CAIRO_INT_STATUS_UNSUPPORTED |
| 94 | #endif |
| 95 | |
| 96 | #if DEBUG0 |
| 97 | #include <X11/Xlibint.h> |
| 98 | static void CAIRO_PRINTF_FORMAT (2, 3)__attribute__((__format__(__printf__, 2, 3))) |
| 99 | _x_bread_crumb (Display *dpy, |
| 100 | const char *fmt, |
| 101 | ...) |
| 102 | { |
| 103 | xReq *req; |
| 104 | char buf[2048]; |
| 105 | unsigned int len, len_dwords; |
| 106 | va_list ap; |
| 107 | |
| 108 | va_start (ap, fmt)__builtin_va_start(ap, fmt); |
| 109 | len = vsnprintf (buf, sizeof (buf), fmt, ap); |
| 110 | va_end (ap)__builtin_va_end(ap); |
| 111 | |
| 112 | buf[len++] = '\0'; |
| 113 | while (len & 3) |
| 114 | buf[len++] = '\0'; |
| 115 | |
| 116 | LockDisplay (dpy); |
| 117 | GetEmptyReq (NoOperation, req); |
| 118 | |
| 119 | len_dwords = len >> 2; |
| 120 | SetReqLen (req, len_dwords, len_dwords); |
| 121 | Data (dpy, buf, len); |
| 122 | |
| 123 | UnlockDisplay (dpy); |
| 124 | SyncHandle (); |
| 125 | } |
| 126 | #define X_DEBUG(x) _x_bread_crumb x |
| 127 | #else |
| 128 | #define X_DEBUG(x) |
| 129 | #endif |
| 130 | |
| 131 | /** |
| 132 | * SECTION:cairo-xlib |
| 133 | * @Title: XLib Surfaces |
| 134 | * @Short_Description: X Window System rendering using XLib |
| 135 | * @See_Also: #cairo_surface_t |
| 136 | * |
| 137 | * The XLib surface is used to render cairo graphics to X Window System |
| 138 | * windows and pixmaps using the XLib library. |
| 139 | * |
| 140 | * Note that the XLib surface automatically takes advantage of X render extension |
| 141 | * if it is available. |
| 142 | **/ |
| 143 | |
| 144 | /** |
| 145 | * CAIRO_HAS_XLIB_SURFACE: |
| 146 | * |
| 147 | * Defined if the Xlib surface backend is available. |
| 148 | * This macro can be used to conditionally compile backend-specific code. |
| 149 | * |
| 150 | * Since: 1.0 |
| 151 | **/ |
| 152 | |
| 153 | /** |
| 154 | * SECTION:cairo-xlib-xrender |
| 155 | * @Title: XLib-XRender Backend |
| 156 | * @Short_Description: X Window System rendering using XLib and the X Render extension |
| 157 | * @See_Also: #cairo_surface_t |
| 158 | * |
| 159 | * The XLib surface is used to render cairo graphics to X Window System |
| 160 | * windows and pixmaps using the XLib and Xrender libraries. |
| 161 | * |
| 162 | * Note that the XLib surface automatically takes advantage of X Render extension |
| 163 | * if it is available. |
| 164 | **/ |
| 165 | |
| 166 | /** |
| 167 | * CAIRO_HAS_XLIB_XRENDER_SURFACE: |
| 168 | * |
| 169 | * Defined if the XLib/XRender surface functions are available. |
| 170 | * This macro can be used to conditionally compile backend-specific code. |
| 171 | * |
| 172 | * Since: 1.6 |
| 173 | **/ |
| 174 | |
| 175 | /* Xlib doesn't define a typedef, so define one ourselves */ |
| 176 | typedef int (*cairo_xlib_error_func_t) (Display *display, |
| 177 | XErrorEvent *event); |
| 178 | |
| 179 | static cairo_surface_t * |
| 180 | _cairo_xlib_surface_create_internal (cairo_xlib_screen_t *screen, |
| 181 | Drawable drawable, |
| 182 | Visual *visual, |
| 183 | XRenderPictFormat *xrender_format, |
| 184 | int width, |
| 185 | int height, |
| 186 | int depth); |
| 187 | |
| 188 | static cairo_bool_t |
| 189 | _cairo_surface_is_xlib (cairo_surface_t *surface); |
| 190 | |
| 191 | /* |
| 192 | * Instead of taking two round trips for each blending request, |
| 193 | * assume that if a particular drawable fails GetImage that it will |
| 194 | * fail for a "while"; use temporary pixmaps to avoid the errors |
| 195 | */ |
| 196 | |
| 197 | #define CAIRO_ASSUME_PIXMAP20 20 |
| 198 | |
| 199 | static Visual * |
| 200 | _visual_for_xrender_format(Screen *screen, |
| 201 | XRenderPictFormat *xrender_format) |
| 202 | { |
| 203 | int d, v; |
| 204 | |
| 205 | /* XXX Consider searching through the list of known cairo_visual_t for |
| 206 | * the reverse mapping. |
| 207 | */ |
| 208 | |
| 209 | for (d = 0; d < screen->ndepths; d++) { |
| 210 | Depth *d_info = &screen->depths[d]; |
| 211 | |
| 212 | if (d_info->depth != xrender_format->depth) |
| 213 | continue; |
| 214 | |
| 215 | for (v = 0; v < d_info->nvisuals; v++) { |
| 216 | Visual *visual = &d_info->visuals[v]; |
| 217 | |
| 218 | switch (visual->class) { |
| 219 | case TrueColor4: |
| 220 | if (xrender_format->type != PictTypeDirect1) |
| 221 | continue; |
| 222 | break; |
| 223 | |
| 224 | case DirectColor5: |
| 225 | /* Prefer TrueColor to DirectColor. |
| 226 | * (XRenderFindVisualFormat considers both TrueColor and DirectColor |
| 227 | * Visuals to match the same PictFormat.) |
| 228 | */ |
| 229 | continue; |
| 230 | |
| 231 | case StaticGray0: |
| 232 | case GrayScale1: |
| 233 | case StaticColor2: |
| 234 | case PseudoColor3: |
| 235 | if (xrender_format->type != PictTypeIndexed0) |
| 236 | continue; |
| 237 | break; |
| 238 | } |
| 239 | |
| 240 | if (xrender_format == |
| 241 | XRenderFindVisualFormat_voidp_consume (DisplayOfScreen(screen)((screen)->display), visual)) |
| 242 | return visual; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | return NULL((void*)0); |
| 247 | } |
| 248 | |
| 249 | static cairo_content_t |
| 250 | _xrender_format_to_content (XRenderPictFormat *xrender_format) |
| 251 | { |
| 252 | cairo_content_t content; |
| 253 | |
| 254 | /* This only happens when using a non-Render server. Let's punt |
| 255 | * and say there's no alpha here. */ |
| 256 | if (xrender_format == NULL((void*)0)) |
| 257 | return CAIRO_CONTENT_COLOR; |
| 258 | |
| 259 | content = 0; |
| 260 | if (xrender_format->direct.alphaMask) |
| 261 | content |= CAIRO_CONTENT_ALPHA; |
| 262 | if (xrender_format->direct.redMask | |
| 263 | xrender_format->direct.greenMask | |
| 264 | xrender_format->direct.blueMask) |
| 265 | content |= CAIRO_CONTENT_COLOR; |
| 266 | |
| 267 | return content; |
| 268 | } |
| 269 | |
| 270 | static cairo_surface_t * |
| 271 | _cairo_xlib_surface_create_similar (void *abstract_src, |
| 272 | cairo_content_t content, |
| 273 | int width, |
| 274 | int height) |
| 275 | { |
| 276 | cairo_xlib_surface_t *src = abstract_src; |
| 277 | XRenderPictFormat *xrender_format; |
| 278 | cairo_xlib_surface_t *surface; |
| 279 | cairo_xlib_display_t *display; |
| 280 | Pixmap pix; |
| 281 | |
| 282 | if (width > XLIB_COORD_MAX32767 || height > XLIB_COORD_MAX32767) |
| 283 | return NULL((void*)0); |
| 284 | |
| 285 | if (width == 0 || height == 0) |
| 286 | return NULL((void*)0); |
| 287 | |
| 288 | if (_cairo_xlib_display_acquire (src->base.device, &display)) |
| 289 | return NULL((void*)0); |
| 290 | |
| 291 | /* If we never found an XRenderFormat or if it isn't compatible |
| 292 | * with the content being requested, then we fallback to just |
| 293 | * constructing a cairo_format_t instead, (which will fairly |
| 294 | * arbitrarily pick a visual/depth for the similar surface. |
| 295 | */ |
| 296 | xrender_format = NULL((void*)0); |
| 297 | if (src->xrender_format && |
| 298 | _xrender_format_to_content (src->xrender_format) == content) |
| 299 | { |
| 300 | xrender_format = src->xrender_format; |
| 301 | } |
| 302 | if (xrender_format == NULL((void*)0)) { |
| 303 | xrender_format = |
| 304 | _cairo_xlib_display_get_xrender_format (display, |
| 305 | _cairo_format_from_content (content)); |
| 306 | } |
| 307 | if (xrender_format) { |
| 308 | Visual *visual; |
| 309 | |
| 310 | /* We've got a compatible XRenderFormat now, which means the |
| 311 | * similar surface will match the existing surface as closely in |
| 312 | * visual/depth etc. as possible. */ |
| 313 | pix = XCreatePixmap (display->display, src->drawable, |
| 314 | width, height, xrender_format->depth); |
| 315 | |
| 316 | if (xrender_format == src->xrender_format) |
| 317 | visual = src->visual; |
| 318 | else |
| 319 | visual = _visual_for_xrender_format(src->screen->screen, |
| 320 | xrender_format); |
| 321 | |
| 322 | surface = (cairo_xlib_surface_t *) |
| 323 | _cairo_xlib_surface_create_internal (src->screen, pix, visual, |
| 324 | xrender_format, |
| 325 | width, height, |
| 326 | xrender_format->depth); |
| 327 | } |
| 328 | else |
| 329 | { |
| 330 | Screen *screen = src->screen->screen; |
| 331 | int depth; |
| 332 | |
| 333 | /* No compatible XRenderFormat, see if we can make an ordinary pixmap, |
| 334 | * so that we can still accelerate blits with XCopyArea(). */ |
| 335 | if (content != CAIRO_CONTENT_COLOR) { |
| 336 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 337 | return NULL((void*)0); |
| 338 | } |
| 339 | |
| 340 | depth = DefaultDepthOfScreen (screen)((screen)->root_depth); |
| 341 | |
| 342 | pix = XCreatePixmap (display->display, RootWindowOfScreen (screen)((screen)->root), |
| 343 | width <= 0 ? 1 : width, height <= 0 ? 1 : height, |
| 344 | depth); |
| 345 | |
| 346 | surface = (cairo_xlib_surface_t *) |
| 347 | _cairo_xlib_surface_create_internal (src->screen, pix, |
| 348 | DefaultVisualOfScreen (screen)((screen)->root_visual), |
| 349 | NULL((void*)0), |
| 350 | width, height, depth); |
| 351 | } |
| 352 | |
| 353 | if (likely (surface->base.status == CAIRO_STATUS_SUCCESS)(__builtin_expect (!!(surface->base.status == CAIRO_STATUS_SUCCESS ), 1))) |
| 354 | surface->owns_pixmap = TRUE1; |
| 355 | else |
| 356 | XFreePixmap (display->display, pix); |
| 357 | |
| 358 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 359 | |
| 360 | return &surface->base; |
| 361 | } |
| 362 | |
| 363 | static void |
| 364 | _cairo_xlib_surface_discard_shm (cairo_xlib_surface_t *surface) |
| 365 | { |
| 366 | if (surface->shm == NULL((void*)0)) |
| 367 | return; |
| 368 | |
| 369 | /* Force the flush for an external surface */ |
| 370 | if (!surface->owns_pixmap) |
| 371 | cairo_surface_flush_moz_cairo_surface_flush (surface->shm); |
| 372 | |
| 373 | cairo_surface_finish_moz_cairo_surface_finish (surface->shm); |
| 374 | cairo_surface_destroy_moz_cairo_surface_destroy (surface->shm); |
| 375 | surface->shm = NULL((void*)0); |
| 376 | |
| 377 | _cairo_damage_destroy (surface->base.damage); |
| 378 | surface->base.damage = NULL((void*)0); |
| 379 | |
| 380 | surface->fallback = 0; |
| 381 | } |
| 382 | |
| 383 | static cairo_status_t |
| 384 | _cairo_xlib_surface_finish (void *abstract_surface) |
| 385 | { |
| 386 | cairo_xlib_surface_t *surface = abstract_surface; |
| 387 | cairo_status_t status; |
| 388 | cairo_xlib_display_t *display; |
| 389 | |
| 390 | cairo_list_del (&surface->link); |
| 391 | |
| 392 | status = _cairo_xlib_display_acquire (surface->base.device, &display); |
| 393 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 394 | return status; |
| 395 | |
| 396 | X_DEBUG ((display->display, "finish (drawable=%x)", (unsigned int) surface->drawable)); |
| 397 | |
| 398 | if (surface->embedded_source.picture) |
| 399 | XRenderFreePicture_void_consume_free (display->display, surface->embedded_source.picture); |
| 400 | if (surface->picture) |
| 401 | XRenderFreePicture_void_consume_free (display->display, surface->picture); |
| 402 | |
| 403 | _cairo_xlib_surface_discard_shm (surface); |
| 404 | |
| 405 | if (surface->owns_pixmap) |
| 406 | XFreePixmap (display->display, surface->drawable); |
| 407 | |
| 408 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 409 | |
| 410 | return status; |
| 411 | } |
| 412 | |
| 413 | cairo_status_t |
| 414 | _cairo_xlib_surface_get_gc (cairo_xlib_display_t *display, |
| 415 | cairo_xlib_surface_t *surface, |
| 416 | GC *gc) |
| 417 | { |
| 418 | *gc = _cairo_xlib_screen_get_gc (display, |
| 419 | surface->screen, |
| 420 | surface->depth, |
| 421 | surface->drawable); |
| 422 | if (unlikely (*gc == NULL)(__builtin_expect (!!(*gc == ((void*)0)), 0))) |
| 423 | return _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 424 | |
| 425 | return CAIRO_STATUS_SUCCESS; |
| 426 | } |
| 427 | |
| 428 | static int |
| 429 | _noop_error_handler (Display *display, |
| 430 | XErrorEvent *event) |
| 431 | { |
| 432 | return False0; /* return value is ignored */ |
| 433 | } |
| 434 | |
| 435 | static void |
| 436 | _swap_ximage_2bytes (XImage *ximage) |
| 437 | { |
| 438 | int i, j; |
| 439 | char *line = ximage->data; |
| 440 | |
| 441 | for (j = ximage->height; j; j--) { |
| 442 | uint16_t *p = (uint16_t *) line; |
| 443 | for (i = ximage->width; i; i--) { |
| 444 | *p = bswap_16 (*p)__bswap_16 (*p); |
| 445 | p++; |
| 446 | } |
| 447 | |
| 448 | line += ximage->bytes_per_line; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | static void |
| 453 | _swap_ximage_3bytes (XImage *ximage) |
| 454 | { |
| 455 | int i, j; |
| 456 | char *line = ximage->data; |
| 457 | |
| 458 | for (j = ximage->height; j; j--) { |
| 459 | uint8_t *p = (uint8_t *) line; |
| 460 | for (i = ximage->width; i; i--) { |
| 461 | uint8_t tmp; |
| 462 | tmp = p[2]; |
| 463 | p[2] = p[0]; |
| 464 | p[0] = tmp; |
| 465 | p += 3; |
| 466 | } |
| 467 | |
| 468 | line += ximage->bytes_per_line; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | static void |
| 473 | _swap_ximage_4bytes (XImage *ximage) |
| 474 | { |
| 475 | int i, j; |
| 476 | char *line = ximage->data; |
| 477 | |
| 478 | for (j = ximage->height; j; j--) { |
| 479 | uint32_t *p = (uint32_t *) line; |
| 480 | for (i = ximage->width; i; i--) { |
| 481 | *p = bswap_32 (*p)__bswap_32 (*p); |
| 482 | p++; |
| 483 | } |
| 484 | |
| 485 | line += ximage->bytes_per_line; |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | static void |
| 490 | _swap_ximage_nibbles (XImage *ximage) |
| 491 | { |
| 492 | int i, j; |
| 493 | char *line = ximage->data; |
| 494 | |
| 495 | for (j = ximage->height; j; j--) { |
| 496 | uint8_t *p = (uint8_t *) line; |
| 497 | for (i = (ximage->width + 1) / 2; i; i--) { |
| 498 | *p = ((*p >> 4) & 0xf) | ((*p << 4) & ~0xf); |
| 499 | p++; |
| 500 | } |
| 501 | |
| 502 | line += ximage->bytes_per_line; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | static void |
| 507 | _swap_ximage_bits (XImage *ximage) |
| 508 | { |
| 509 | int i, j; |
| 510 | char *line = ximage->data; |
| 511 | int unit = ximage->bitmap_unit; |
| 512 | int line_bytes = ((ximage->width + unit - 1) & ~(unit - 1)) / 8; |
| 513 | |
| 514 | for (j = ximage->height; j; j--) { |
| 515 | char *p = line; |
| 516 | |
| 517 | for (i = line_bytes; i; i--) { |
| 518 | char b = *p; |
| 519 | b = ((b << 1) & 0xaa) | ((b >> 1) & 0x55); |
| 520 | b = ((b << 2) & 0xcc) | ((b >> 2) & 0x33); |
| 521 | b = ((b << 4) & 0xf0) | ((b >> 4) & 0x0f); |
| 522 | *p = b; |
| 523 | |
| 524 | p++; |
| 525 | } |
| 526 | |
| 527 | line += ximage->bytes_per_line; |
| 528 | } |
| 529 | } |
| 530 | |
| 531 | static void |
| 532 | _swap_ximage_to_native (XImage *ximage) |
| 533 | { |
| 534 | int unit_bytes = 0; |
| 535 | int native_byte_order = _cairo_is_little_endian () ? LSBFirst0 : MSBFirst1; |
| 536 | |
| 537 | if (ximage->bits_per_pixel == 1 && |
| 538 | ximage->bitmap_bit_order != native_byte_order) |
| 539 | { |
| 540 | _swap_ximage_bits (ximage); |
| 541 | if (ximage->bitmap_bit_order == ximage->byte_order) |
| 542 | return; |
| 543 | } |
| 544 | |
| 545 | if (ximage->byte_order == native_byte_order) |
| 546 | return; |
| 547 | |
| 548 | switch (ximage->bits_per_pixel) { |
| 549 | case 1: |
| 550 | unit_bytes = ximage->bitmap_unit / 8; |
| 551 | break; |
| 552 | case 4: |
| 553 | _swap_ximage_nibbles (ximage); |
| 554 | /* fall-through */ |
| 555 | case 8: |
| 556 | case 16: |
| 557 | case 20: |
| 558 | case 24: |
| 559 | case 28: |
| 560 | case 30: |
| 561 | case 32: |
| 562 | unit_bytes = (ximage->bits_per_pixel + 7) / 8; |
| 563 | break; |
| 564 | default: |
| 565 | /* This could be hit on some rare but possible cases. */ |
| 566 | ASSERT_NOT_REACHEDdo { ((void) sizeof ((!"reached") ? 1 : 0), __extension__ ({ if (!"reached") ; else __assert_fail ("!\"reached\"", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 566, __extension__ __PRETTY_FUNCTION__); })); } while (0); |
| 567 | } |
| 568 | |
| 569 | switch (unit_bytes) { |
| 570 | case 1: |
| 571 | break; |
| 572 | case 2: |
| 573 | _swap_ximage_2bytes (ximage); |
| 574 | break; |
| 575 | case 3: |
| 576 | _swap_ximage_3bytes (ximage); |
| 577 | break; |
| 578 | case 4: |
| 579 | _swap_ximage_4bytes (ximage); |
| 580 | break; |
| 581 | default: |
| 582 | ASSERT_NOT_REACHEDdo { ((void) sizeof ((!"reached") ? 1 : 0), __extension__ ({ if (!"reached") ; else __assert_fail ("!\"reached\"", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 582, __extension__ __PRETTY_FUNCTION__); })); } while (0); |
| 583 | } |
| 584 | } |
| 585 | |
| 586 | |
| 587 | /* Given a mask, (with a single sequence of contiguous 1 bits), return |
| 588 | * the number of 1 bits in 'width' and the number of 0 bits to its |
| 589 | * right in 'shift'. */ |
| 590 | static void |
| 591 | _characterize_field (uint32_t mask, int *width, int *shift) |
| 592 | { |
| 593 | *width = _cairo_popcount (mask); |
| 594 | /* The final '& 31' is to force a 0 mask to result in 0 shift. */ |
| 595 | *shift = _cairo_popcount ((mask - 1) & ~mask) & 31; |
| 596 | } |
| 597 | |
| 598 | /* Convert a field of 'width' bits to 'new_width' bits with correct |
| 599 | * rounding. */ |
| 600 | static inline uint32_t |
| 601 | _resize_field (uint32_t field, int width, int new_width) |
| 602 | { |
| 603 | if (width == 0) |
| 604 | return 0; |
| 605 | |
| 606 | if (width >= new_width) { |
| 607 | return field >> (width - new_width); |
| 608 | } else { |
| 609 | uint32_t result = field << (new_width - width); |
| 610 | |
| 611 | while (width < new_width) { |
| 612 | result |= result >> width; |
| 613 | width <<= 1; |
| 614 | } |
| 615 | return result; |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | static inline uint32_t |
| 620 | _adjust_field (uint32_t field, int adjustment) |
| 621 | { |
| 622 | return MIN (255, MAX(0, (int)field + adjustment))((255) < (((0) > ((int)field + adjustment) ? (0) : ((int )field + adjustment))) ? (255) : (((0) > ((int)field + adjustment ) ? (0) : ((int)field + adjustment)))); |
| 623 | } |
| 624 | |
| 625 | /* Given a shifted field value, (described by 'width' and 'shift), |
| 626 | * resize it 8-bits and return that value. |
| 627 | * |
| 628 | * Note that the original field value must not have any non-field bits |
| 629 | * set. |
| 630 | */ |
| 631 | static inline uint32_t |
| 632 | _field_to_8 (uint32_t field, int width, int shift) |
| 633 | { |
| 634 | return _resize_field (field >> shift, width, 8); |
| 635 | } |
| 636 | |
| 637 | static inline uint32_t |
| 638 | _field_to_8_undither (uint32_t field, int width, int shift, |
| 639 | int dither_adjustment) |
| 640 | { |
| 641 | return _adjust_field (_field_to_8 (field, width, shift), - dither_adjustment>>width); |
| 642 | } |
| 643 | |
| 644 | /* Given an 8-bit value, convert it to a field of 'width', shift it up |
| 645 | * to 'shift, and return it. */ |
| 646 | static inline uint32_t |
| 647 | _field_from_8 (uint32_t field, int width, int shift) |
| 648 | { |
| 649 | return _resize_field (field, 8, width) << shift; |
| 650 | } |
| 651 | |
| 652 | static inline uint32_t |
| 653 | _field_from_8_dither (uint32_t field, int width, int shift, |
| 654 | int8_t dither_adjustment) |
| 655 | { |
| 656 | return _field_from_8 (_adjust_field (field, dither_adjustment>>width), width, shift); |
| 657 | } |
| 658 | |
| 659 | static inline uint32_t |
| 660 | _pseudocolor_from_rgb888_dither (cairo_xlib_visual_info_t *visual_info, |
| 661 | uint32_t r, uint32_t g, uint32_t b, |
| 662 | int8_t dither_adjustment) |
| 663 | { |
| 664 | if (r == g && g == b) { |
| 665 | dither_adjustment /= RAMP_SIZE16; |
| 666 | return visual_info->gray8_to_pseudocolor[_adjust_field (r, dither_adjustment)]; |
| 667 | } else { |
| 668 | dither_adjustment = visual_info->dither8_to_cube[dither_adjustment+128]; |
| 669 | return visual_info->cube_to_pseudocolor[visual_info->field8_to_cube[_adjust_field (r, dither_adjustment)]] |
| 670 | [visual_info->field8_to_cube[_adjust_field (g, dither_adjustment)]] |
| 671 | [visual_info->field8_to_cube[_adjust_field (b, dither_adjustment)]]; |
| 672 | } |
| 673 | } |
| 674 | |
| 675 | static inline uint32_t |
| 676 | _pseudocolor_to_rgb888 (cairo_xlib_visual_info_t *visual_info, |
| 677 | uint32_t pixel) |
| 678 | { |
| 679 | uint32_t r, g, b; |
| 680 | pixel &= 0xff; |
| 681 | r = visual_info->colors[pixel].r; |
| 682 | g = visual_info->colors[pixel].g; |
| 683 | b = visual_info->colors[pixel].b; |
| 684 | return (r << 16) | |
| 685 | (g << 8) | |
| 686 | (b ); |
| 687 | } |
| 688 | |
| 689 | /* should range from -128 to 127 */ |
| 690 | #define X 16 |
| 691 | static const int8_t dither_pattern[4][4] = { |
| 692 | {-8*X, +0*X, -6*X, +2*X}, |
| 693 | {+4*X, -4*X, +6*X, -2*X}, |
| 694 | {-5*X, +4*X, -7*X, +1*X}, |
| 695 | {+7*X, -1*X, +5*X, -3*X} |
| 696 | }; |
| 697 | #undef X |
| 698 | |
| 699 | static int bits_per_pixel(cairo_xlib_surface_t *surface) |
| 700 | { |
| 701 | if (surface->depth > 16) |
| 702 | return 32; |
| 703 | else if (surface->depth > 8) |
| 704 | return 16; |
| 705 | else if (surface->depth > 1) |
| 706 | return 8; |
| 707 | else |
| 708 | return 1; |
| 709 | } |
| 710 | |
| 711 | pixman_format_code_t |
| 712 | _pixman_format_for_xlib_surface (cairo_xlib_surface_t *surface) |
| 713 | { |
| 714 | cairo_format_masks_t masks; |
| 715 | pixman_format_code_t format; |
| 716 | |
| 717 | masks.bpp = bits_per_pixel (surface); |
| 718 | masks.alpha_mask = surface->a_mask; |
| 719 | masks.red_mask = surface->r_mask; |
| 720 | masks.green_mask = surface->g_mask; |
| 721 | masks.blue_mask = surface->b_mask; |
| 722 | if (! _pixman_format_from_masks (&masks, &format)) |
| 723 | return 0; |
| 724 | |
| 725 | return format; |
| 726 | } |
| 727 | |
| 728 | static cairo_surface_t * |
| 729 | _get_image_surface (cairo_xlib_surface_t *surface, |
| 730 | const cairo_rectangle_int_t *extents, |
| 731 | int try_shm) |
| 732 | { |
| 733 | cairo_int_status_t status; |
| 734 | cairo_image_surface_t *image = NULL((void*)0); |
| 735 | XImage *ximage; |
| 736 | pixman_format_code_t pixman_format; |
| 737 | cairo_xlib_display_t *display; |
| 738 | |
| 739 | assert (extents->x >= 0)((void) sizeof ((extents->x >= 0) ? 1 : 0), __extension__ ({ if (extents->x >= 0) ; else __assert_fail ("extents->x >= 0" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 739, __extension__ __PRETTY_FUNCTION__); })); |
| 740 | assert (extents->y >= 0)((void) sizeof ((extents->y >= 0) ? 1 : 0), __extension__ ({ if (extents->y >= 0) ; else __assert_fail ("extents->y >= 0" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 740, __extension__ __PRETTY_FUNCTION__); })); |
| 741 | assert (extents->x + extents->width <= surface->width)((void) sizeof ((extents->x + extents->width <= surface ->width) ? 1 : 0), __extension__ ({ if (extents->x + extents ->width <= surface->width) ; else __assert_fail ("extents->x + extents->width <= surface->width" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 741, __extension__ __PRETTY_FUNCTION__); })); |
| 742 | assert (extents->y + extents->height <= surface->height)((void) sizeof ((extents->y + extents->height <= surface ->height) ? 1 : 0), __extension__ ({ if (extents->y + extents ->height <= surface->height) ; else __assert_fail ("extents->y + extents->height <= surface->height" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 742, __extension__ __PRETTY_FUNCTION__); })); |
| 743 | |
| 744 | if (surface->base.is_clear || |
| 745 | (surface->base.serial == 0 && surface->owns_pixmap)) |
| 746 | { |
| 747 | pixman_format = _pixman_format_for_xlib_surface (surface); |
| 748 | if (pixman_format) |
| 749 | { |
| 750 | return _cairo_image_surface_create_with_pixman_format (NULL((void*)0), |
| 751 | pixman_format, |
| 752 | extents->width, |
| 753 | extents->height, |
| 754 | 0); |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | if (surface->shm) { |
| 759 | cairo_image_surface_t *src = (cairo_image_surface_t *) surface->shm; |
| 760 | cairo_surface_t *dst; |
| 761 | cairo_surface_pattern_t pattern; |
| 762 | |
| 763 | dst = cairo_image_surface_create_moz_cairo_image_surface_create (src->format, |
| 764 | extents->width, extents->height); |
| 765 | if (unlikely (dst->status)(__builtin_expect (!!(dst->status), 0))) |
| 766 | return dst; |
| 767 | |
| 768 | _cairo_pattern_init_for_surface (&pattern, &src->base); |
| 769 | cairo_matrix_init_translate_moz_cairo_matrix_init_translate (&pattern.base.matrix, |
| 770 | extents->x, extents->y); |
| 771 | status = _cairo_surface_paint (dst, CAIRO_OPERATOR_SOURCE, &pattern.base, NULL((void*)0)); |
| 772 | _cairo_pattern_fini (&pattern.base); |
| 773 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 774 | cairo_surface_destroy_moz_cairo_surface_destroy (dst); |
| 775 | dst = _cairo_surface_create_in_error (status); |
| 776 | } |
| 777 | |
| 778 | return dst; |
| 779 | } |
| 780 | |
| 781 | status = _cairo_xlib_display_acquire (surface->base.device, &display); |
| 782 | if (status) |
| 783 | return _cairo_surface_create_in_error (status); |
| 784 | |
| 785 | pixman_format = _pixman_format_for_xlib_surface (surface); |
| 786 | if (try_shm && pixman_format) { |
| 787 | image = (cairo_image_surface_t *) |
| 788 | _cairo_xlib_surface_create_shm__image (surface, pixman_format, |
| 789 | extents->width, extents->height); |
| 790 | if (image && image->base.status == CAIRO_STATUS_SUCCESS) { |
| 791 | cairo_xlib_error_func_t old_handler; |
| 792 | XImage shm_image; |
| 793 | Boolint success; |
| 794 | |
| 795 | _cairo_xlib_shm_surface_get_ximage (&image->base, &shm_image); |
| 796 | |
| 797 | XSync (display->display, False0); |
| 798 | old_handler = XSetErrorHandler (_noop_error_handler); |
| 799 | success = XShmGetImage (display->display, |
| 800 | surface->drawable, |
| 801 | &shm_image, |
| 802 | extents->x, extents->y, |
| 803 | AllPlanes((unsigned long)~0L)); |
| 804 | XSetErrorHandler (old_handler); |
| 805 | |
| 806 | if (success) { |
| 807 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 808 | return &image->base; |
| 809 | } |
| 810 | |
| 811 | cairo_surface_destroy_moz_cairo_surface_destroy (&image->base); |
| 812 | image = NULL((void*)0); |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | if (surface->use_pixmap == 0) { |
| 817 | cairo_xlib_error_func_t old_handler; |
| 818 | |
| 819 | XSync (display->display, False0); |
| 820 | old_handler = XSetErrorHandler (_noop_error_handler); |
| 821 | |
| 822 | ximage = XGetImage (display->display, |
| 823 | surface->drawable, |
| 824 | extents->x, extents->y, |
| 825 | extents->width, extents->height, |
| 826 | AllPlanes((unsigned long)~0L), ZPixmap2); |
| 827 | |
| 828 | XSetErrorHandler (old_handler); |
| 829 | |
| 830 | /* If we get an error, the surface must have been a window, |
| 831 | * so retry with the safe code path. |
| 832 | */ |
| 833 | if (!ximage) |
| 834 | surface->use_pixmap = CAIRO_ASSUME_PIXMAP20; |
| 835 | } else { |
| 836 | surface->use_pixmap--; |
| 837 | ximage = NULL((void*)0); |
| 838 | } |
| 839 | |
| 840 | if (ximage == NULL((void*)0)) { |
| 841 | /* XGetImage from a window is dangerous because it can |
| 842 | * produce errors if the window is unmapped or partially |
| 843 | * outside the screen. We could check for errors and |
| 844 | * retry, but to keep things simple, we just create a |
| 845 | * temporary pixmap |
| 846 | */ |
| 847 | Pixmap pixmap; |
| 848 | GC gc; |
| 849 | |
| 850 | status = _cairo_xlib_surface_get_gc (display, surface, &gc); |
| 851 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 852 | goto BAIL; |
| 853 | |
| 854 | pixmap = XCreatePixmap (display->display, |
| 855 | surface->drawable, |
| 856 | extents->width, extents->height, |
| 857 | surface->depth); |
| 858 | if (pixmap) { |
| 859 | XGCValues gcv; |
| 860 | |
| 861 | gcv.subwindow_mode = IncludeInferiors1; |
| 862 | XChangeGC (display->display, gc, GCSubwindowMode(1L<<15), &gcv); |
| 863 | |
| 864 | XCopyArea (display->display, surface->drawable, pixmap, gc, |
| 865 | extents->x, extents->y, |
| 866 | extents->width, extents->height, |
| 867 | 0, 0); |
| 868 | |
| 869 | gcv.subwindow_mode = ClipByChildren0; |
| 870 | XChangeGC (display->display, gc, GCSubwindowMode(1L<<15), &gcv); |
| 871 | |
| 872 | ximage = XGetImage (display->display, |
| 873 | pixmap, |
| 874 | 0, 0, |
| 875 | extents->width, extents->height, |
| 876 | AllPlanes((unsigned long)~0L), ZPixmap2); |
| 877 | |
| 878 | XFreePixmap (display->display, pixmap); |
| 879 | } |
| 880 | |
| 881 | _cairo_xlib_surface_put_gc (display, surface, gc); |
| 882 | |
| 883 | if (ximage == NULL((void*)0)) { |
| 884 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 885 | goto BAIL; |
| 886 | } |
| 887 | } |
| 888 | |
| 889 | _swap_ximage_to_native (ximage); |
| 890 | |
| 891 | /* We can't use pixman to simply write to image if: |
| 892 | * (a) the pixels are not appropriately aligned, |
| 893 | * (b) pixman does not the pixel format, or |
| 894 | * (c) if the image is palettized and we need to convert. |
| 895 | */ |
| 896 | if (pixman_format && |
| 897 | ximage->bitmap_unit == 32 && ximage->bitmap_pad == 32 && |
| 898 | (surface->visual == NULL((void*)0) || surface->visual->class == TrueColor4)) |
| 899 | { |
| 900 | image = (cairo_image_surface_t*) |
| 901 | _cairo_image_surface_create_with_pixman_format ((unsigned char *) ximage->data, |
| 902 | pixman_format, |
| 903 | ximage->width, |
| 904 | ximage->height, |
| 905 | ximage->bytes_per_line); |
| 906 | status = image->base.status; |
| 907 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 908 | goto BAIL; |
| 909 | |
| 910 | /* Let the surface take ownership of the data */ |
| 911 | _cairo_image_surface_assume_ownership_of_data (image); |
| 912 | ximage->data = NULL((void*)0); |
| 913 | } else { |
| 914 | /* The visual we are dealing with is not supported by the |
| 915 | * standard pixman formats. So we must first convert the data |
| 916 | * to a supported format. */ |
| 917 | |
| 918 | cairo_format_t format; |
| 919 | unsigned char *data; |
| 920 | uint32_t *row; |
| 921 | uint32_t in_pixel, out_pixel; |
| 922 | unsigned int rowstride; |
| 923 | uint32_t a_mask=0, r_mask=0, g_mask=0, b_mask=0; |
| 924 | int a_width=0, r_width=0, g_width=0, b_width=0; |
| 925 | int a_shift=0, r_shift=0, g_shift=0, b_shift=0; |
| 926 | int x, y, x0, y0, x_off, y_off; |
| 927 | cairo_xlib_visual_info_t *visual_info = NULL((void*)0); |
| 928 | |
| 929 | if (surface->visual == NULL((void*)0) || surface->visual->class == TrueColor4) { |
| 930 | cairo_bool_t has_alpha; |
| 931 | cairo_bool_t has_color; |
| 932 | |
| 933 | has_alpha = surface->a_mask; |
| 934 | has_color = (surface->r_mask || |
| 935 | surface->g_mask || |
| 936 | surface->b_mask); |
| 937 | |
| 938 | if (has_color) { |
| 939 | if (has_alpha) { |
| 940 | format = CAIRO_FORMAT_ARGB32; |
| 941 | } else { |
| 942 | format = CAIRO_FORMAT_RGB24; |
| 943 | } |
| 944 | } else { |
| 945 | /* XXX: Using CAIRO_FORMAT_A8 here would be more |
| 946 | * efficient, but would require slightly different code in |
| 947 | * the image conversion to put the alpha channel values |
| 948 | * into the right place. */ |
| 949 | format = CAIRO_FORMAT_ARGB32; |
| 950 | } |
| 951 | |
| 952 | a_mask = surface->a_mask; |
| 953 | r_mask = surface->r_mask; |
| 954 | g_mask = surface->g_mask; |
| 955 | b_mask = surface->b_mask; |
| 956 | |
| 957 | _characterize_field (a_mask, &a_width, &a_shift); |
| 958 | _characterize_field (r_mask, &r_width, &r_shift); |
| 959 | _characterize_field (g_mask, &g_width, &g_shift); |
| 960 | _characterize_field (b_mask, &b_width, &b_shift); |
| 961 | |
| 962 | } else { |
| 963 | format = CAIRO_FORMAT_RGB24; |
| 964 | |
| 965 | status = _cairo_xlib_screen_get_visual_info (display, |
| 966 | surface->screen, |
| 967 | surface->visual, |
| 968 | &visual_info); |
| 969 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 970 | goto BAIL; |
| 971 | } |
| 972 | |
| 973 | image = (cairo_image_surface_t *) cairo_image_surface_create_moz_cairo_image_surface_create |
| 974 | (format, ximage->width, ximage->height); |
| 975 | status = image->base.status; |
| 976 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 977 | goto BAIL; |
| 978 | |
| 979 | data = cairo_image_surface_get_data_moz_cairo_image_surface_get_data (&image->base); |
| 980 | rowstride = cairo_image_surface_get_stride_moz_cairo_image_surface_get_stride (&image->base) >> 2; |
| 981 | row = (uint32_t *) data; |
| 982 | x0 = extents->x + surface->base.device_transform.x0; |
| 983 | y0 = extents->y + surface->base.device_transform.y0; |
| 984 | for (y = 0, y_off = y0 % ARRAY_LENGTH (dither_pattern)((int) (sizeof (dither_pattern) / sizeof (dither_pattern[0])) ); |
| 985 | y < ximage->height; |
| 986 | y++, y_off = (y_off+1) % ARRAY_LENGTH (dither_pattern)((int) (sizeof (dither_pattern) / sizeof (dither_pattern[0])) )) { |
| 987 | const int8_t *dither_row = dither_pattern[y_off]; |
| 988 | for (x = 0, x_off = x0 % ARRAY_LENGTH (dither_pattern[0])((int) (sizeof (dither_pattern[0]) / sizeof (dither_pattern[0 ][0]))); |
| 989 | x < ximage->width; |
| 990 | x++, x_off = (x_off+1) % ARRAY_LENGTH (dither_pattern[0])((int) (sizeof (dither_pattern[0]) / sizeof (dither_pattern[0 ][0])))) { |
| 991 | int dither_adjustment = dither_row[x_off]; |
| 992 | |
| 993 | in_pixel = XGetPixel (ximage, x, y)((*((ximage)->f.get_pixel))((ximage), (x), (y))); |
| 994 | if (visual_info == NULL((void*)0)) { |
| 995 | out_pixel = ( |
| 996 | (uint32_t)_field_to_8 (in_pixel & a_mask, a_width, a_shift) << 24 | |
| 997 | _field_to_8_undither (in_pixel & r_mask, r_width, r_shift, dither_adjustment) << 16 | |
| 998 | _field_to_8_undither (in_pixel & g_mask, g_width, g_shift, dither_adjustment) << 8 | |
| 999 | _field_to_8_undither (in_pixel & b_mask, b_width, b_shift, dither_adjustment)); |
| 1000 | } else { |
| 1001 | /* Undithering pseudocolor does not look better */ |
| 1002 | out_pixel = _pseudocolor_to_rgb888 (visual_info, in_pixel); |
| 1003 | } |
| 1004 | row[x] = out_pixel; |
| 1005 | } |
| 1006 | row += rowstride; |
| 1007 | } |
| 1008 | cairo_surface_mark_dirty_moz_cairo_surface_mark_dirty (&image->base); |
| 1009 | } |
| 1010 | |
| 1011 | BAIL: |
| 1012 | if (ximage) |
| 1013 | XDestroyImage (ximage)((*((ximage)->f.destroy_image))((ximage))); |
| 1014 | |
| 1015 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 1016 | |
| 1017 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 1018 | if (image) |
| 1019 | cairo_surface_destroy_moz_cairo_surface_destroy (&image->base); |
| 1020 | return _cairo_surface_create_in_error (status); |
| 1021 | } |
| 1022 | |
| 1023 | return &image->base; |
| 1024 | } |
| 1025 | |
| 1026 | void |
| 1027 | _cairo_xlib_surface_set_precision (cairo_xlib_surface_t *surface, |
| 1028 | cairo_antialias_t antialias) |
| 1029 | { |
| 1030 | cairo_xlib_display_t *display = surface->display; |
| 1031 | int precision; |
| 1032 | |
| 1033 | if (display->force_precision != -1) |
| 1034 | precision = display->force_precision; |
| 1035 | else switch (antialias) { |
| 1036 | default: |
| 1037 | case CAIRO_ANTIALIAS_DEFAULT: |
| 1038 | case CAIRO_ANTIALIAS_GRAY: |
| 1039 | case CAIRO_ANTIALIAS_NONE: |
| 1040 | case CAIRO_ANTIALIAS_FAST: |
| 1041 | case CAIRO_ANTIALIAS_GOOD: |
| 1042 | precision = PolyModeImprecise1; |
| 1043 | break; |
| 1044 | case CAIRO_ANTIALIAS_BEST: |
| 1045 | case CAIRO_ANTIALIAS_SUBPIXEL: |
| 1046 | precision = PolyModePrecise0; |
| 1047 | break; |
| 1048 | } |
| 1049 | |
| 1050 | if (surface->precision != precision) { |
| 1051 | XRenderPictureAttributes pa; |
| 1052 | |
| 1053 | pa.poly_mode = precision; |
| 1054 | XRenderChangePicture_void_consume (display->display, surface->picture, |
| 1055 | CPPolyMode(1 << 10), &pa); |
| 1056 | |
| 1057 | surface->precision = precision; |
| 1058 | } |
| 1059 | } |
| 1060 | |
| 1061 | void |
| 1062 | _cairo_xlib_surface_ensure_picture (cairo_xlib_surface_t *surface) |
| 1063 | { |
| 1064 | cairo_xlib_display_t *display = surface->display; |
| 1065 | XRenderPictureAttributes pa; |
| 1066 | int mask = 0; |
| 1067 | |
| 1068 | if (surface->picture) |
| 1069 | return; |
| 1070 | |
| 1071 | if (display->force_precision != -1) |
| 1072 | pa.poly_mode = display->force_precision; |
| 1073 | else |
| 1074 | pa.poly_mode = PolyModeImprecise1; |
| 1075 | if (pa.poly_mode) |
| 1076 | mask |= CPPolyMode(1 << 10); |
| 1077 | |
| 1078 | surface->precision = pa.poly_mode; |
| 1079 | surface->picture = XRenderCreatePicture_int_consume (display->display, |
| 1080 | surface->drawable, |
| 1081 | surface->xrender_format, |
| 1082 | mask, &pa); |
| 1083 | } |
| 1084 | |
| 1085 | cairo_status_t |
| 1086 | _cairo_xlib_surface_draw_image (cairo_xlib_surface_t *surface, |
| 1087 | cairo_image_surface_t *image, |
| 1088 | int src_x, |
| 1089 | int src_y, |
| 1090 | int width, |
| 1091 | int height, |
| 1092 | int dst_x, |
| 1093 | int dst_y) |
| 1094 | { |
| 1095 | cairo_xlib_display_t *display; |
| 1096 | XImage ximage; |
| 1097 | cairo_format_masks_t image_masks; |
| 1098 | int native_byte_order = _cairo_is_little_endian () ? LSBFirst0 : MSBFirst1; |
| 1099 | cairo_surface_t *shm_image = NULL((void*)0); |
| 1100 | pixman_image_t *pixman_image = NULL((void*)0); |
| 1101 | cairo_status_t status; |
| 1102 | cairo_bool_t own_data = FALSE0; |
| 1103 | cairo_bool_t is_rgb_image; |
| 1104 | GC gc; |
| 1105 | |
| 1106 | ximage.width = image->width; |
| 1107 | ximage.height = image->height; |
| 1108 | ximage.format = ZPixmap2; |
| 1109 | ximage.byte_order = native_byte_order; |
| 1110 | ximage.bitmap_unit = 32; /* always for libpixman */ |
| 1111 | ximage.bitmap_bit_order = native_byte_order; |
| 1112 | ximage.bitmap_pad = 32; /* always for libpixman */ |
| 1113 | ximage.depth = surface->depth; |
| 1114 | ximage.red_mask = surface->r_mask; |
| 1115 | ximage.green_mask = surface->g_mask; |
| 1116 | ximage.blue_mask = surface->b_mask; |
| 1117 | ximage.xoffset = 0; |
| 1118 | ximage.obdata = NULL((void*)0); |
| 1119 | |
| 1120 | status = _cairo_xlib_display_acquire (surface->base.device, &display); |
| 1121 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1122 | return status; |
| 1123 | |
| 1124 | is_rgb_image = _pixman_format_to_masks (image->pixman_format, &image_masks); |
| 1125 | |
| 1126 | if (is_rgb_image && |
| 1127 | (image_masks.alpha_mask == surface->a_mask || surface->a_mask == 0) && |
| 1128 | (image_masks.red_mask == surface->r_mask || surface->r_mask == 0) && |
| 1129 | (image_masks.green_mask == surface->g_mask || surface->g_mask == 0) && |
| 1130 | (image_masks.blue_mask == surface->b_mask || surface->b_mask == 0)) |
| 1131 | { |
| 1132 | int ret; |
| 1133 | |
| 1134 | ximage.bits_per_pixel = image_masks.bpp; |
| 1135 | ximage.bytes_per_line = image->stride; |
| 1136 | ximage.data = (char *)image->data; |
| 1137 | if (image->base.device != surface->base.device) { |
| 1138 | /* If PutImage will break the image up into chunks, prefer to |
| 1139 | * send it all in one pass with ShmPutImage. For larger images, |
| 1140 | * it is further advantageous to reduce the number of copies, |
| 1141 | * albeit at the expense of more SHM bookkeeping. |
| 1142 | */ |
| 1143 | int max_request_size = XExtendedMaxRequestSize (display->display); |
| 1144 | if (max_request_size == 0) |
| 1145 | max_request_size = XMaxRequestSize (display->display); |
| 1146 | if (max_request_size > 8192) |
| 1147 | max_request_size = 8192; |
| 1148 | if (width * height * 4 > max_request_size) { |
| 1149 | shm_image = _cairo_xlib_surface_create_shm__image (surface, |
| 1150 | image->pixman_format, |
| 1151 | width, height); |
| 1152 | if (shm_image && shm_image->status == CAIRO_STATUS_SUCCESS) { |
| 1153 | cairo_image_surface_t *clone = (cairo_image_surface_t *) shm_image; |
| 1154 | pixman_image_composite32_moz_pixman_image_composite32 (PIXMAN_OP_SRC, |
| 1155 | image->pixman_image, NULL((void*)0), clone->pixman_image, |
| 1156 | src_x, src_y, |
| 1157 | 0, 0, |
| 1158 | 0, 0, |
| 1159 | width, height); |
| 1160 | ximage.obdata = _cairo_xlib_shm_surface_get_obdata (shm_image); |
| 1161 | ximage.data = (char *)clone->data; |
| 1162 | ximage.bytes_per_line = clone->stride; |
| 1163 | ximage.width = width; |
| 1164 | ximage.height = height; |
| 1165 | src_x = src_y = 0; |
| 1166 | } |
| 1167 | } |
| 1168 | } else |
| 1169 | ximage.obdata = _cairo_xlib_shm_surface_get_obdata (&image->base); |
| 1170 | |
| 1171 | ret = XInitImage (&ximage); |
| 1172 | assert (ret != 0)((void) sizeof ((ret != 0) ? 1 : 0), __extension__ ({ if (ret != 0) ; else __assert_fail ("ret != 0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1172, __extension__ __PRETTY_FUNCTION__); })); |
| 1173 | } |
| 1174 | else if (surface->visual == NULL((void*)0) || surface->visual->class == TrueColor4) |
| 1175 | { |
| 1176 | pixman_format_code_t intermediate_format; |
| 1177 | int ret; |
| 1178 | |
| 1179 | image_masks.alpha_mask = surface->a_mask; |
| 1180 | image_masks.red_mask = surface->r_mask; |
| 1181 | image_masks.green_mask = surface->g_mask; |
| 1182 | image_masks.blue_mask = surface->b_mask; |
| 1183 | image_masks.bpp = bits_per_pixel (surface); |
| 1184 | ret = _pixman_format_from_masks (&image_masks, &intermediate_format); |
| 1185 | assert (ret)((void) sizeof ((ret) ? 1 : 0), __extension__ ({ if (ret) ; else __assert_fail ("ret", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1185, __extension__ __PRETTY_FUNCTION__); })); |
| 1186 | |
| 1187 | shm_image = _cairo_xlib_surface_create_shm__image (surface, |
| 1188 | intermediate_format, |
| 1189 | width, height); |
| 1190 | if (shm_image && shm_image->status == CAIRO_STATUS_SUCCESS) { |
| 1191 | cairo_image_surface_t *clone = (cairo_image_surface_t *) shm_image; |
| 1192 | |
| 1193 | pixman_image_composite32_moz_pixman_image_composite32 (PIXMAN_OP_SRC, |
| 1194 | image->pixman_image, |
| 1195 | NULL((void*)0), |
| 1196 | clone->pixman_image, |
| 1197 | src_x, src_y, |
| 1198 | 0, 0, |
| 1199 | 0, 0, |
| 1200 | width, height); |
| 1201 | |
| 1202 | ximage.data = (char *) clone->data; |
| 1203 | ximage.obdata = _cairo_xlib_shm_surface_get_obdata (&clone->base); |
| 1204 | ximage.bytes_per_line = clone->stride; |
| 1205 | } else { |
| 1206 | pixman_image = pixman_image_create_bits_moz_pixman_image_create_bits (intermediate_format, |
| 1207 | width, height, NULL((void*)0), 0); |
| 1208 | if (pixman_image == NULL((void*)0)) { |
| 1209 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
| 1210 | goto BAIL; |
| 1211 | } |
| 1212 | |
| 1213 | pixman_image_composite32_moz_pixman_image_composite32 (PIXMAN_OP_SRC, |
| 1214 | image->pixman_image, |
| 1215 | NULL((void*)0), |
| 1216 | pixman_image, |
| 1217 | src_x, src_y, |
| 1218 | 0, 0, |
| 1219 | 0, 0, |
| 1220 | width, height); |
| 1221 | |
| 1222 | ximage.data = (char *) pixman_image_get_data_moz_pixman_image_get_data (pixman_image); |
| 1223 | ximage.bytes_per_line = pixman_image_get_stride_moz_pixman_image_get_stride (pixman_image); |
| 1224 | } |
| 1225 | |
| 1226 | ximage.width = width; |
| 1227 | ximage.height = height; |
| 1228 | ximage.bits_per_pixel = image_masks.bpp; |
| 1229 | |
| 1230 | ret = XInitImage (&ximage); |
| 1231 | assert (ret != 0)((void) sizeof ((ret != 0) ? 1 : 0), __extension__ ({ if (ret != 0) ; else __assert_fail ("ret != 0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1231, __extension__ __PRETTY_FUNCTION__); })); |
| 1232 | |
| 1233 | src_x = src_y = 0; |
| 1234 | } |
| 1235 | else |
| 1236 | { |
| 1237 | unsigned int stride, rowstride; |
| 1238 | int x, y, x0, y0, x_off, y_off; |
| 1239 | uint32_t in_pixel, out_pixel, *row; |
| 1240 | int i_a_width=0, i_r_width=0, i_g_width=0, i_b_width=0; |
| 1241 | int i_a_shift=0, i_r_shift=0, i_g_shift=0, i_b_shift=0; |
| 1242 | int o_a_width=0, o_r_width=0, o_g_width=0, o_b_width=0; |
| 1243 | int o_a_shift=0, o_r_shift=0, o_g_shift=0, o_b_shift=0; |
| 1244 | cairo_xlib_visual_info_t *visual_info = NULL((void*)0); |
| 1245 | cairo_bool_t true_color; |
| 1246 | int ret; |
| 1247 | |
| 1248 | ximage.bits_per_pixel = bits_per_pixel(surface); |
| 1249 | stride = CAIRO_STRIDE_FOR_WIDTH_BPP (ximage.width,((((ximage.bits_per_pixel)*(ximage.width)+7)/8 + (sizeof (uint32_t ))-1) & -(sizeof (uint32_t))) |
| 1250 | ximage.bits_per_pixel)((((ximage.bits_per_pixel)*(ximage.width)+7)/8 + (sizeof (uint32_t ))-1) & -(sizeof (uint32_t))); |
| 1251 | ximage.bytes_per_line = stride; |
| 1252 | ximage.data = _cairo_malloc_ab (stride, ximage.height); |
| 1253 | if (unlikely (ximage.data == NULL)(__builtin_expect (!!(ximage.data == ((void*)0)), 0))) { |
| 1254 | status = _cairo_error (CAIRO_STATUS_NO_MEMORY); |
Value stored to 'status' is never read | |
| 1255 | goto BAIL; |
| 1256 | } |
| 1257 | |
| 1258 | own_data = TRUE1; |
| 1259 | |
| 1260 | ret = XInitImage (&ximage); |
| 1261 | assert (ret != 0)((void) sizeof ((ret != 0) ? 1 : 0), __extension__ ({ if (ret != 0) ; else __assert_fail ("ret != 0", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1261, __extension__ __PRETTY_FUNCTION__); })); |
| 1262 | |
| 1263 | _characterize_field (image_masks.alpha_mask, &i_a_width, &i_a_shift); |
| 1264 | _characterize_field (image_masks.red_mask , &i_r_width, &i_r_shift); |
| 1265 | _characterize_field (image_masks.green_mask, &i_g_width, &i_g_shift); |
| 1266 | _characterize_field (image_masks.blue_mask , &i_b_width, &i_b_shift); |
| 1267 | |
| 1268 | true_color = surface->visual == NULL((void*)0) || |
| 1269 | surface->visual->class == TrueColor4; |
| 1270 | if (true_color) { |
| 1271 | _characterize_field (surface->a_mask, &o_a_width, &o_a_shift); |
| 1272 | _characterize_field (surface->r_mask, &o_r_width, &o_r_shift); |
| 1273 | _characterize_field (surface->g_mask, &o_g_width, &o_g_shift); |
| 1274 | _characterize_field (surface->b_mask, &o_b_width, &o_b_shift); |
| 1275 | } else { |
| 1276 | status = _cairo_xlib_screen_get_visual_info (display, |
| 1277 | surface->screen, |
| 1278 | surface->visual, |
| 1279 | &visual_info); |
| 1280 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1281 | goto BAIL; |
| 1282 | } |
| 1283 | |
| 1284 | rowstride = image->stride >> 2; |
| 1285 | row = (uint32_t *) image->data; |
| 1286 | x0 = dst_x + surface->base.device_transform.x0; |
| 1287 | y0 = dst_y + surface->base.device_transform.y0; |
| 1288 | for (y = 0, y_off = y0 % ARRAY_LENGTH (dither_pattern)((int) (sizeof (dither_pattern) / sizeof (dither_pattern[0])) ); |
| 1289 | y < ximage.height; |
| 1290 | y++, y_off = (y_off+1) % ARRAY_LENGTH (dither_pattern)((int) (sizeof (dither_pattern) / sizeof (dither_pattern[0])) )) |
| 1291 | { |
| 1292 | const int8_t *dither_row = dither_pattern[y_off]; |
| 1293 | |
| 1294 | for (x = 0, x_off = x0 % ARRAY_LENGTH (dither_pattern[0])((int) (sizeof (dither_pattern[0]) / sizeof (dither_pattern[0 ][0]))); |
| 1295 | x < ximage.width; |
| 1296 | x++, x_off = (x_off+1) % ARRAY_LENGTH (dither_pattern[0])((int) (sizeof (dither_pattern[0]) / sizeof (dither_pattern[0 ][0])))) |
| 1297 | { |
| 1298 | int dither_adjustment = dither_row[x_off]; |
| 1299 | int a, r, g, b; |
| 1300 | |
| 1301 | if (image_masks.bpp == 1) |
| 1302 | in_pixel = !! (((uint8_t*)row)[x/8] & (1 << (x & 7))); |
| 1303 | else if (image_masks.bpp <= 8) |
| 1304 | in_pixel = ((uint8_t*)row)[x]; |
| 1305 | else if (image_masks.bpp <= 16) |
| 1306 | in_pixel = ((uint16_t*)row)[x]; |
| 1307 | else if (image_masks.bpp <= 24) |
| 1308 | #ifdef WORDS_BIGENDIAN |
| 1309 | in_pixel = ((uint8_t*)row)[3 * x] << 16 | |
| 1310 | ((uint8_t*)row)[3 * x + 1] << 8 | |
| 1311 | ((uint8_t*)row)[3 * x + 2]; |
| 1312 | #else |
| 1313 | in_pixel = ((uint8_t*)row)[3 * x] | |
| 1314 | ((uint8_t*)row)[3 * x + 1] << 8 | |
| 1315 | ((uint8_t*)row)[3 * x + 2] << 16; |
| 1316 | #endif |
| 1317 | else |
| 1318 | in_pixel = row[x]; |
| 1319 | |
| 1320 | /* If the incoming image has no alpha channel, then the input |
| 1321 | * is opaque and the output should have the maximum alpha value. |
| 1322 | * For all other channels, their absence implies 0. |
| 1323 | */ |
| 1324 | if (image_masks.alpha_mask == 0x0) |
| 1325 | a = 0xff; |
| 1326 | else |
| 1327 | a = _field_to_8 (in_pixel & image_masks.alpha_mask, i_a_width, i_a_shift); |
| 1328 | r = _field_to_8 (in_pixel & image_masks.red_mask , i_r_width, i_r_shift); |
| 1329 | g = _field_to_8 (in_pixel & image_masks.green_mask, i_g_width, i_g_shift); |
| 1330 | b = _field_to_8 (in_pixel & image_masks.blue_mask , i_b_width, i_b_shift); |
| 1331 | |
| 1332 | if (true_color) { |
| 1333 | out_pixel = _field_from_8 (a, o_a_width, o_a_shift) | |
| 1334 | _field_from_8_dither (r, o_r_width, o_r_shift, dither_adjustment) | |
| 1335 | _field_from_8_dither (g, o_g_width, o_g_shift, dither_adjustment) | |
| 1336 | _field_from_8_dither (b, o_b_width, o_b_shift, dither_adjustment); |
| 1337 | } else { |
| 1338 | out_pixel = _pseudocolor_from_rgb888_dither (visual_info, r, g, b, dither_adjustment); |
| 1339 | } |
| 1340 | |
| 1341 | XPutPixel (&ximage, x, y, out_pixel)((*((&ximage)->f.put_pixel))((&ximage), (x), (y), ( out_pixel))); |
| 1342 | } |
| 1343 | |
| 1344 | row += rowstride; |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | status = _cairo_xlib_surface_get_gc (display, surface, &gc); |
| 1349 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1350 | goto BAIL; |
| 1351 | |
| 1352 | if (ximage.obdata) |
| 1353 | XShmPutImage (display->display, surface->drawable, gc, &ximage, |
| 1354 | src_x, src_y, dst_x, dst_y, width, height, True1); |
| 1355 | else |
| 1356 | XPutImage (display->display, surface->drawable, gc, &ximage, |
| 1357 | src_x, src_y, dst_x, dst_y, width, height); |
| 1358 | |
| 1359 | _cairo_xlib_surface_put_gc (display, surface, gc); |
| 1360 | |
| 1361 | BAIL: |
| 1362 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 1363 | |
| 1364 | if (own_data) |
| 1365 | free (ximage.data); |
| 1366 | if (shm_image) |
| 1367 | cairo_surface_destroy_moz_cairo_surface_destroy (shm_image); |
| 1368 | if (pixman_image) |
| 1369 | pixman_image_unref_moz_pixman_image_unref (pixman_image); |
| 1370 | |
| 1371 | return CAIRO_STATUS_SUCCESS; |
| 1372 | } |
| 1373 | |
| 1374 | static cairo_surface_t * |
| 1375 | _cairo_xlib_surface_source(void *abstract_surface, |
| 1376 | cairo_rectangle_int_t *extents) |
| 1377 | { |
| 1378 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1379 | |
| 1380 | if (extents) { |
| 1381 | extents->x = extents->y = 0; |
| 1382 | extents->width = surface->width; |
| 1383 | extents->height = surface->height; |
| 1384 | } |
| 1385 | |
| 1386 | return &surface->base; |
| 1387 | } |
| 1388 | |
| 1389 | static cairo_status_t |
| 1390 | _cairo_xlib_surface_acquire_source_image (void *abstract_surface, |
| 1391 | cairo_image_surface_t **image_out, |
| 1392 | void **image_extra) |
| 1393 | { |
| 1394 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1395 | cairo_rectangle_int_t extents; |
| 1396 | |
| 1397 | *image_extra = NULL((void*)0); |
| 1398 | *image_out = (cairo_image_surface_t *) |
| 1399 | _cairo_xlib_surface_get_shm (abstract_surface, FALSE0); |
| 1400 | if (*image_out) |
| 1401 | return (*image_out)->base.status; |
| 1402 | |
| 1403 | extents.x = extents.y = 0; |
| 1404 | extents.width = surface->width; |
| 1405 | extents.height = surface->height; |
| 1406 | |
| 1407 | *image_out = (cairo_image_surface_t*) |
| 1408 | _get_image_surface (surface, &extents, TRUE1); |
| 1409 | return (*image_out)->base.status; |
| 1410 | } |
| 1411 | |
| 1412 | static cairo_surface_t * |
| 1413 | _cairo_xlib_surface_snapshot (void *abstract_surface) |
| 1414 | { |
| 1415 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1416 | cairo_rectangle_int_t extents; |
| 1417 | |
| 1418 | extents.x = extents.y = 0; |
| 1419 | extents.width = surface->width; |
| 1420 | extents.height = surface->height; |
| 1421 | |
| 1422 | return _get_image_surface (surface, &extents, FALSE0); |
| 1423 | } |
| 1424 | |
| 1425 | static void |
| 1426 | _cairo_xlib_surface_release_source_image (void *abstract_surface, |
| 1427 | cairo_image_surface_t *image, |
| 1428 | void *image_extra) |
| 1429 | { |
| 1430 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1431 | |
| 1432 | if (&image->base == surface->shm) |
| 1433 | return; |
| 1434 | |
| 1435 | cairo_surface_destroy_moz_cairo_surface_destroy (&image->base); |
| 1436 | } |
| 1437 | |
| 1438 | static cairo_image_surface_t * |
| 1439 | _cairo_xlib_surface_map_to_image (void *abstract_surface, |
| 1440 | const cairo_rectangle_int_t *extents) |
| 1441 | { |
| 1442 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1443 | cairo_surface_t *image; |
| 1444 | |
| 1445 | image = _cairo_xlib_surface_get_shm (abstract_surface, FALSE0); |
| 1446 | if (image) { |
| 1447 | assert (surface->base.damage)((void) sizeof ((surface->base.damage) ? 1 : 0), __extension__ ({ if (surface->base.damage) ; else __assert_fail ("surface->base.damage" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1447, __extension__ __PRETTY_FUNCTION__); })); |
| 1448 | surface->fallback++; |
| 1449 | return _cairo_image_surface_map_to_image (image, extents); |
| 1450 | } |
| 1451 | |
| 1452 | image = _get_image_surface (abstract_surface, extents, TRUE1); |
| 1453 | cairo_surface_set_device_offset_moz_cairo_surface_set_device_offset (image, -extents->x, -extents->y); |
| 1454 | |
| 1455 | return (cairo_image_surface_t *) image; |
| 1456 | } |
| 1457 | |
| 1458 | static cairo_int_status_t |
| 1459 | _cairo_xlib_surface_unmap_image (void *abstract_surface, |
| 1460 | cairo_image_surface_t *image) |
| 1461 | { |
| 1462 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1463 | cairo_int_status_t status; |
| 1464 | |
| 1465 | if (surface->shm) { |
| 1466 | cairo_rectangle_int_t r; |
| 1467 | |
| 1468 | assert (surface->fallback)((void) sizeof ((surface->fallback) ? 1 : 0), __extension__ ({ if (surface->fallback) ; else __assert_fail ("surface->fallback" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1468, __extension__ __PRETTY_FUNCTION__); })); |
| 1469 | assert (surface->base.damage)((void) sizeof ((surface->base.damage) ? 1 : 0), __extension__ ({ if (surface->base.damage) ; else __assert_fail ("surface->base.damage" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1469, __extension__ __PRETTY_FUNCTION__); })); |
| 1470 | |
| 1471 | r.x = image->base.device_transform_inverse.x0; |
| 1472 | r.y = image->base.device_transform_inverse.y0; |
| 1473 | r.width = image->width; |
| 1474 | r.height = image->height; |
| 1475 | |
| 1476 | TRACE ((stderr, "%s: adding damage (%d,%d)x(%d,%d)\n", |
| 1477 | __FUNCTION__, r.x, r.y, r.width, r.height)); |
| 1478 | surface->shm->damage = |
| 1479 | _cairo_damage_add_rectangle (surface->shm->damage, &r); |
| 1480 | |
| 1481 | return _cairo_image_surface_unmap_image (surface->shm, image); |
| 1482 | } |
| 1483 | |
| 1484 | status = _cairo_xlib_surface_draw_image (abstract_surface, image, |
| 1485 | 0, 0, |
| 1486 | image->width, image->height, |
| 1487 | image->base.device_transform_inverse.x0, |
| 1488 | image->base.device_transform_inverse.y0); |
| 1489 | |
| 1490 | cairo_surface_finish_moz_cairo_surface_finish (&image->base); |
| 1491 | cairo_surface_destroy_moz_cairo_surface_destroy (&image->base); |
| 1492 | |
| 1493 | return status; |
| 1494 | } |
| 1495 | |
| 1496 | static cairo_status_t |
| 1497 | _cairo_xlib_surface_flush (void *abstract_surface, |
| 1498 | unsigned flags) |
| 1499 | { |
| 1500 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1501 | cairo_int_status_t status; |
| 1502 | |
| 1503 | if (flags) |
| 1504 | return CAIRO_STATUS_SUCCESS; |
| 1505 | |
| 1506 | status = _cairo_xlib_surface_put_shm (surface); |
| 1507 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1508 | return status; |
| 1509 | |
| 1510 | surface->fallback >>= 1; |
| 1511 | if (surface->shm && _cairo_xlib_shm_surface_is_idle (surface->shm)) |
| 1512 | _cairo_xlib_surface_discard_shm (surface); |
| 1513 | |
| 1514 | return CAIRO_STATUS_SUCCESS; |
| 1515 | } |
| 1516 | |
| 1517 | static cairo_bool_t |
| 1518 | _cairo_xlib_surface_get_extents (void *abstract_surface, |
| 1519 | cairo_rectangle_int_t *rectangle) |
| 1520 | { |
| 1521 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1522 | |
| 1523 | rectangle->x = 0; |
| 1524 | rectangle->y = 0; |
| 1525 | |
| 1526 | rectangle->width = surface->width; |
| 1527 | rectangle->height = surface->height; |
| 1528 | |
| 1529 | return TRUE1; |
| 1530 | } |
| 1531 | |
| 1532 | static void |
| 1533 | _cairo_xlib_surface_get_font_options (void *abstract_surface, |
| 1534 | cairo_font_options_t *options) |
| 1535 | { |
| 1536 | cairo_xlib_surface_t *surface = abstract_surface; |
| 1537 | |
| 1538 | *options = *_cairo_xlib_screen_get_font_options (surface->screen); |
| 1539 | } |
| 1540 | |
| 1541 | static inline cairo_int_status_t |
| 1542 | get_compositor (cairo_xlib_surface_t **surface, |
| 1543 | const cairo_compositor_t **compositor) |
| 1544 | { |
| 1545 | cairo_xlib_surface_t *s = *surface; |
| 1546 | cairo_int_status_t status = CAIRO_INT_STATUS_SUCCESS;; |
| 1547 | |
| 1548 | if (s->fallback) { |
| 1549 | assert (s->base.damage != NULL)((void) sizeof ((s->base.damage != ((void*)0)) ? 1 : 0), __extension__ ({ if (s->base.damage != ((void*)0)) ; else __assert_fail ("s->base.damage != NULL", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1549, __extension__ __PRETTY_FUNCTION__); })); |
| 1550 | assert (s->shm != NULL)((void) sizeof ((s->shm != ((void*)0)) ? 1 : 0), __extension__ ({ if (s->shm != ((void*)0)) ; else __assert_fail ("s->shm != NULL" , "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1550, __extension__ __PRETTY_FUNCTION__); })); |
| 1551 | assert (s->shm->damage != NULL)((void) sizeof ((s->shm->damage != ((void*)0)) ? 1 : 0) , __extension__ ({ if (s->shm->damage != ((void*)0)) ; else __assert_fail ("s->shm->damage != NULL", "/root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-surface.c" , 1551, __extension__ __PRETTY_FUNCTION__); })); |
| 1552 | if (! _cairo_xlib_shm_surface_is_active (s->shm)) { |
| 1553 | *surface = (cairo_xlib_surface_t *) s->shm; |
| 1554 | *compositor = ((cairo_image_surface_t *) s->shm)->compositor; |
| 1555 | s->fallback++; |
| 1556 | } else { |
| 1557 | status = _cairo_xlib_surface_put_shm (s); |
| 1558 | s->fallback = 0; |
| 1559 | *compositor = s->compositor; |
| 1560 | } |
| 1561 | } else |
| 1562 | *compositor = s->compositor; |
| 1563 | |
| 1564 | return status; |
| 1565 | } |
| 1566 | |
| 1567 | static cairo_int_status_t |
| 1568 | _cairo_xlib_surface_paint (void *_surface, |
| 1569 | cairo_operator_t op, |
| 1570 | const cairo_pattern_t *source, |
| 1571 | const cairo_clip_t *clip) |
| 1572 | { |
| 1573 | cairo_xlib_surface_t *surface = _surface; |
| 1574 | const cairo_compositor_t *compositor; |
| 1575 | cairo_int_status_t status; |
| 1576 | |
| 1577 | status = get_compositor (&surface, &compositor); |
| 1578 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1579 | return status; |
| 1580 | |
| 1581 | return _cairo_compositor_paint (compositor, &surface->base, |
| 1582 | op, source, |
| 1583 | clip); |
| 1584 | } |
| 1585 | |
| 1586 | static cairo_int_status_t |
| 1587 | _cairo_xlib_surface_mask (void *_surface, |
| 1588 | cairo_operator_t op, |
| 1589 | const cairo_pattern_t *source, |
| 1590 | const cairo_pattern_t *mask, |
| 1591 | const cairo_clip_t *clip) |
| 1592 | { |
| 1593 | cairo_xlib_surface_t *surface = _surface; |
| 1594 | const cairo_compositor_t *compositor; |
| 1595 | cairo_int_status_t status; |
| 1596 | |
| 1597 | status = get_compositor (&surface, &compositor); |
| 1598 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1599 | return status; |
| 1600 | |
| 1601 | return _cairo_compositor_mask (compositor, &surface->base, |
| 1602 | op, source, mask, |
| 1603 | clip); |
| 1604 | } |
| 1605 | |
| 1606 | static cairo_int_status_t |
| 1607 | _cairo_xlib_surface_stroke (void *_surface, |
| 1608 | cairo_operator_t op, |
| 1609 | const cairo_pattern_t *source, |
| 1610 | const cairo_path_fixed_t *path, |
| 1611 | const cairo_stroke_style_t *style, |
| 1612 | const cairo_matrix_t *ctm, |
| 1613 | const cairo_matrix_t *ctm_inverse, |
| 1614 | double tolerance, |
| 1615 | cairo_antialias_t antialias, |
| 1616 | const cairo_clip_t *clip) |
| 1617 | { |
| 1618 | cairo_xlib_surface_t *surface = _surface; |
| 1619 | const cairo_compositor_t *compositor; |
| 1620 | cairo_int_status_t status; |
| 1621 | |
| 1622 | status = get_compositor (&surface, &compositor); |
| 1623 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1624 | return status; |
| 1625 | |
| 1626 | return _cairo_compositor_stroke (compositor, &surface->base, |
| 1627 | op, source, |
| 1628 | path, style, ctm, ctm_inverse, |
| 1629 | tolerance, antialias, |
| 1630 | clip); |
| 1631 | } |
| 1632 | |
| 1633 | static cairo_int_status_t |
| 1634 | _cairo_xlib_surface_fill (void *_surface, |
| 1635 | cairo_operator_t op, |
| 1636 | const cairo_pattern_t *source, |
| 1637 | const cairo_path_fixed_t *path, |
| 1638 | cairo_fill_rule_t fill_rule, |
| 1639 | double tolerance, |
| 1640 | cairo_antialias_t antialias, |
| 1641 | const cairo_clip_t *clip) |
| 1642 | { |
| 1643 | cairo_xlib_surface_t *surface = _surface; |
| 1644 | const cairo_compositor_t *compositor; |
| 1645 | cairo_int_status_t status; |
| 1646 | |
| 1647 | status = get_compositor (&surface, &compositor); |
| 1648 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1649 | return status; |
| 1650 | |
| 1651 | return _cairo_compositor_fill (compositor, &surface->base, |
| 1652 | op, source, |
| 1653 | path, fill_rule, tolerance, antialias, |
| 1654 | clip); |
| 1655 | } |
| 1656 | |
| 1657 | static cairo_int_status_t |
| 1658 | _cairo_xlib_surface_glyphs (void *_surface, |
| 1659 | cairo_operator_t op, |
| 1660 | const cairo_pattern_t *source, |
| 1661 | cairo_glyph_t *glyphs, |
| 1662 | int num_glyphs, |
| 1663 | cairo_scaled_font_t *scaled_font, |
| 1664 | const cairo_clip_t *clip) |
| 1665 | { |
| 1666 | cairo_xlib_surface_t *surface = _surface; |
| 1667 | const cairo_compositor_t *compositor; |
| 1668 | cairo_int_status_t status; |
| 1669 | |
| 1670 | status = get_compositor (&surface, &compositor); |
| 1671 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1672 | return status; |
| 1673 | |
| 1674 | return _cairo_compositor_glyphs (compositor, &surface->base, |
| 1675 | op, source, |
| 1676 | glyphs, num_glyphs, scaled_font, |
| 1677 | clip); |
| 1678 | } |
| 1679 | |
| 1680 | static const cairo_surface_backend_t cairo_xlib_surface_backend = { |
| 1681 | CAIRO_SURFACE_TYPE_XLIB, |
| 1682 | _cairo_xlib_surface_finish, |
| 1683 | |
| 1684 | _cairo_default_context_create, |
| 1685 | |
| 1686 | _cairo_xlib_surface_create_similar, |
| 1687 | _cairo_xlib_surface_create_similar_shm, |
| 1688 | _cairo_xlib_surface_map_to_image, |
| 1689 | _cairo_xlib_surface_unmap_image, |
| 1690 | |
| 1691 | _cairo_xlib_surface_source, |
| 1692 | _cairo_xlib_surface_acquire_source_image, |
| 1693 | _cairo_xlib_surface_release_source_image, |
| 1694 | _cairo_xlib_surface_snapshot, |
| 1695 | |
| 1696 | NULL((void*)0), /* copy_page */ |
| 1697 | NULL((void*)0), /* show_page */ |
| 1698 | |
| 1699 | _cairo_xlib_surface_get_extents, |
| 1700 | _cairo_xlib_surface_get_font_options, |
| 1701 | |
| 1702 | _cairo_xlib_surface_flush, |
| 1703 | NULL((void*)0), /* mark_dirty_rectangle */ |
| 1704 | |
| 1705 | _cairo_xlib_surface_paint, |
| 1706 | _cairo_xlib_surface_mask, |
| 1707 | _cairo_xlib_surface_stroke, |
| 1708 | _cairo_xlib_surface_fill, |
| 1709 | NULL((void*)0), /* fill-stroke */ |
| 1710 | _cairo_xlib_surface_glyphs, |
| 1711 | }; |
| 1712 | |
| 1713 | /** |
| 1714 | * _cairo_surface_is_xlib: |
| 1715 | * @surface: a #cairo_surface_t |
| 1716 | * |
| 1717 | * Checks if a surface is a #cairo_xlib_surface_t |
| 1718 | * |
| 1719 | * Return value: True if the surface is an xlib surface |
| 1720 | **/ |
| 1721 | static cairo_bool_t |
| 1722 | _cairo_surface_is_xlib (cairo_surface_t *surface) |
| 1723 | { |
| 1724 | return surface->backend == &cairo_xlib_surface_backend; |
| 1725 | } |
| 1726 | |
| 1727 | static cairo_surface_t * |
| 1728 | _cairo_xlib_surface_create_internal (cairo_xlib_screen_t *screen, |
| 1729 | Drawable drawable, |
| 1730 | Visual *visual, |
| 1731 | XRenderPictFormat *xrender_format, |
| 1732 | int width, |
| 1733 | int height, |
| 1734 | int depth) |
| 1735 | { |
| 1736 | cairo_xlib_surface_t *surface; |
| 1737 | cairo_xlib_display_t *display; |
| 1738 | cairo_status_t status; |
| 1739 | |
| 1740 | if (depth == 0) { |
| 1741 | if (xrender_format) { |
| 1742 | depth = xrender_format->depth; |
| 1743 | |
| 1744 | /* XXX find matching visual for core/dithering fallbacks? */ |
| 1745 | } else if (visual) { |
| 1746 | Screen *scr = screen->screen; |
| 1747 | |
| 1748 | if (visual == DefaultVisualOfScreen (scr)((scr)->root_visual)) { |
| 1749 | depth = DefaultDepthOfScreen (scr)((scr)->root_depth); |
| 1750 | } else { |
| 1751 | int j, k; |
| 1752 | |
| 1753 | /* This is ugly, but we have to walk over all visuals |
| 1754 | * for the display to find the correct depth. |
| 1755 | */ |
| 1756 | depth = 0; |
| 1757 | for (j = 0; j < scr->ndepths; j++) { |
| 1758 | Depth *d = &scr->depths[j]; |
| 1759 | for (k = 0; k < d->nvisuals; k++) { |
| 1760 | if (&d->visuals[k] == visual) { |
| 1761 | depth = d->depth; |
| 1762 | goto found; |
| 1763 | } |
| 1764 | } |
| 1765 | } |
| 1766 | } |
| 1767 | } |
| 1768 | |
| 1769 | if (depth == 0) |
| 1770 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); |
| 1771 | |
| 1772 | found: |
| 1773 | ; |
| 1774 | } |
| 1775 | |
| 1776 | surface = _cairo_malloc (sizeof (cairo_xlib_surface_t))((sizeof (cairo_xlib_surface_t)) != 0 ? malloc(sizeof (cairo_xlib_surface_t )) : ((void*)0)); |
| 1777 | if (unlikely (surface == NULL)(__builtin_expect (!!(surface == ((void*)0)), 0))) |
| 1778 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
| 1779 | |
| 1780 | status = _cairo_xlib_display_acquire (screen->device, &display); |
| 1781 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 1782 | free (surface); |
| 1783 | return _cairo_surface_create_in_error (_cairo_error (status)); |
| 1784 | } |
| 1785 | |
| 1786 | surface->display = display; |
| 1787 | if (CAIRO_RENDER_HAS_CREATE_PICTURE (display)((((display))->render_major > 0) || ((((display))->render_major == 0) && (((display))->render_minor >= 0)))) { |
| 1788 | if (!xrender_format) { |
| 1789 | if (visual) { |
| 1790 | xrender_format = XRenderFindVisualFormat_voidp_consume (display->display, visual); |
| 1791 | } else if (depth == 1) { |
| 1792 | xrender_format = |
| 1793 | _cairo_xlib_display_get_xrender_format (display, |
| 1794 | CAIRO_FORMAT_A1); |
| 1795 | } |
| 1796 | } |
| 1797 | } |
| 1798 | |
| 1799 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 1800 | |
| 1801 | _cairo_surface_init (&surface->base, |
| 1802 | &cairo_xlib_surface_backend, |
| 1803 | screen->device, |
| 1804 | _xrender_format_to_content (xrender_format), |
| 1805 | FALSE0); /* is_vector */ |
| 1806 | |
| 1807 | surface->screen = screen; |
| 1808 | surface->compositor = display->compositor; |
| 1809 | surface->shm = NULL((void*)0); |
| 1810 | surface->fallback = 0; |
| 1811 | |
| 1812 | surface->drawable = drawable; |
| 1813 | surface->owns_pixmap = FALSE0; |
| 1814 | surface->use_pixmap = 0; |
| 1815 | surface->width = width; |
| 1816 | surface->height = height; |
| 1817 | |
| 1818 | surface->picture = None0L; |
| 1819 | surface->precision = PolyModePrecise0; |
| 1820 | |
| 1821 | surface->embedded_source.picture = None0L; |
| 1822 | |
| 1823 | surface->visual = visual; |
| 1824 | surface->xrender_format = xrender_format; |
| 1825 | surface->depth = depth; |
| 1826 | |
| 1827 | /* |
| 1828 | * Compute the pixel format masks from either a XrenderFormat or |
| 1829 | * else from a visual; failing that we assume the drawable is an |
| 1830 | * alpha-only pixmap as it could only have been created that way |
| 1831 | * through the cairo_xlib_surface_create_for_bitmap function. |
| 1832 | */ |
| 1833 | if (xrender_format) { |
| 1834 | surface->a_mask = (unsigned long) |
| 1835 | surface->xrender_format->direct.alphaMask |
| 1836 | << surface->xrender_format->direct.alpha; |
| 1837 | surface->r_mask = (unsigned long) |
| 1838 | surface->xrender_format->direct.redMask |
| 1839 | << surface->xrender_format->direct.red; |
| 1840 | surface->g_mask = (unsigned long) |
| 1841 | surface->xrender_format->direct.greenMask |
| 1842 | << surface->xrender_format->direct.green; |
| 1843 | surface->b_mask = (unsigned long) |
| 1844 | surface->xrender_format->direct.blueMask |
| 1845 | << surface->xrender_format->direct.blue; |
| 1846 | } else if (visual) { |
| 1847 | surface->a_mask = 0; |
| 1848 | surface->r_mask = visual->red_mask; |
| 1849 | surface->g_mask = visual->green_mask; |
| 1850 | surface->b_mask = visual->blue_mask; |
| 1851 | } else { |
| 1852 | if (depth < 32) |
| 1853 | surface->a_mask = (1 << depth) - 1; |
| 1854 | else |
| 1855 | surface->a_mask = 0xffffffff; |
| 1856 | surface->r_mask = 0; |
| 1857 | surface->g_mask = 0; |
| 1858 | surface->b_mask = 0; |
| 1859 | } |
| 1860 | |
| 1861 | cairo_list_add (&surface->link, &screen->surfaces); |
| 1862 | |
| 1863 | return &surface->base; |
| 1864 | } |
| 1865 | |
| 1866 | static Screen * |
| 1867 | _cairo_xlib_screen_from_visual (Display *dpy, Visual *visual) |
| 1868 | { |
| 1869 | int s, d, v; |
| 1870 | |
| 1871 | for (s = 0; s < ScreenCount (dpy)(((_XPrivDisplay)(dpy))->nscreens); s++) { |
| 1872 | Screen *screen; |
| 1873 | |
| 1874 | screen = ScreenOfDisplay (dpy, s)(&((_XPrivDisplay)(dpy))->screens[s]); |
| 1875 | if (visual == DefaultVisualOfScreen (screen)((screen)->root_visual)) |
| 1876 | return screen; |
| 1877 | |
| 1878 | for (d = 0; d < screen->ndepths; d++) { |
| 1879 | Depth *depth; |
| 1880 | |
| 1881 | depth = &screen->depths[d]; |
| 1882 | for (v = 0; v < depth->nvisuals; v++) |
| 1883 | if (visual == &depth->visuals[v]) |
| 1884 | return screen; |
| 1885 | } |
| 1886 | } |
| 1887 | |
| 1888 | return NULL((void*)0); |
| 1889 | } |
| 1890 | |
| 1891 | static cairo_bool_t valid_size (int width, int height) |
| 1892 | { |
| 1893 | /* Note: the minimum surface size allowed in the X protocol is 1x1. |
| 1894 | * However, as we historically did not check the minimum size we |
| 1895 | * allowed applications to lie and set the correct size later (one hopes). |
| 1896 | * To preserve compatibility we must allow applications to use |
| 1897 | * 0x0 surfaces. |
| 1898 | */ |
| 1899 | return (width >= 0 && width <= XLIB_COORD_MAX32767 && |
| 1900 | height >= 0 && height <= XLIB_COORD_MAX32767); |
| 1901 | } |
| 1902 | |
| 1903 | /** |
| 1904 | * cairo_xlib_surface_create: |
| 1905 | * @dpy: an X Display |
| 1906 | * @drawable: an X Drawable, (a Pixmap or a Window) |
| 1907 | * @visual: the visual to use for drawing to @drawable. The depth |
| 1908 | * of the visual must match the depth of the drawable. |
| 1909 | * Currently, only TrueColor visuals are fully supported. |
| 1910 | * @width: the current width of @drawable. |
| 1911 | * @height: the current height of @drawable. |
| 1912 | * |
| 1913 | * Creates an Xlib surface that draws to the given drawable. |
| 1914 | * The way that colors are represented in the drawable is specified |
| 1915 | * by the provided visual. |
| 1916 | * |
| 1917 | * Note: If @drawable is a Window, then the function |
| 1918 | * cairo_xlib_surface_set_size() must be called whenever the size of the |
| 1919 | * window changes. |
| 1920 | * |
| 1921 | * When @drawable is a Window containing child windows then drawing to |
| 1922 | * the created surface will be clipped by those child windows. When |
| 1923 | * the created surface is used as a source, the contents of the |
| 1924 | * children will be included. |
| 1925 | * |
| 1926 | * Return value: the newly created surface |
| 1927 | * |
| 1928 | * Since: 1.0 |
| 1929 | **/ |
| 1930 | cairo_surface_t * |
| 1931 | cairo_xlib_surface_create_moz_cairo_xlib_surface_create (Display *dpy, |
| 1932 | Drawable drawable, |
| 1933 | Visual *visual, |
| 1934 | int width, |
| 1935 | int height) |
| 1936 | { |
| 1937 | Screen *scr; |
| 1938 | cairo_xlib_screen_t *screen; |
| 1939 | cairo_status_t status; |
| 1940 | |
| 1941 | if (! valid_size (width, height)) { |
| 1942 | /* you're lying, and you know it! */ |
| 1943 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); |
| 1944 | } |
| 1945 | |
| 1946 | scr = _cairo_xlib_screen_from_visual (dpy, visual); |
| 1947 | if (scr == NULL((void*)0)) |
| 1948 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL)); |
| 1949 | |
| 1950 | status = _cairo_xlib_screen_get (dpy, scr, &screen); |
| 1951 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1952 | return _cairo_surface_create_in_error (status); |
| 1953 | |
| 1954 | X_DEBUG ((dpy, "create (drawable=%x)", (unsigned int) drawable)); |
| 1955 | |
| 1956 | return _cairo_xlib_surface_create_internal (screen, drawable, |
| 1957 | visual, NULL((void*)0), |
| 1958 | width, height, 0); |
| 1959 | } |
| 1960 | |
| 1961 | /** |
| 1962 | * cairo_xlib_surface_create_for_bitmap: |
| 1963 | * @dpy: an X Display |
| 1964 | * @bitmap: an X Drawable, (a depth-1 Pixmap) |
| 1965 | * @screen: the X Screen associated with @bitmap |
| 1966 | * @width: the current width of @bitmap. |
| 1967 | * @height: the current height of @bitmap. |
| 1968 | * |
| 1969 | * Creates an Xlib surface that draws to the given bitmap. |
| 1970 | * This will be drawn to as a %CAIRO_FORMAT_A1 object. |
| 1971 | * |
| 1972 | * Return value: the newly created surface |
| 1973 | * |
| 1974 | * Since: 1.0 |
| 1975 | **/ |
| 1976 | cairo_surface_t * |
| 1977 | cairo_xlib_surface_create_for_bitmap_moz_cairo_xlib_surface_create_for_bitmap (Display *dpy, |
| 1978 | Pixmap bitmap, |
| 1979 | Screen *scr, |
| 1980 | int width, |
| 1981 | int height) |
| 1982 | { |
| 1983 | cairo_xlib_screen_t *screen; |
| 1984 | cairo_status_t status; |
| 1985 | |
| 1986 | if (! valid_size (width, height)) |
| 1987 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); |
| 1988 | |
| 1989 | status = _cairo_xlib_screen_get (dpy, scr, &screen); |
| 1990 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 1991 | return _cairo_surface_create_in_error (status); |
| 1992 | |
| 1993 | X_DEBUG ((dpy, "create_for_bitmap (drawable=%x)", (unsigned int) bitmap)); |
| 1994 | |
| 1995 | return _cairo_xlib_surface_create_internal (screen, bitmap, |
| 1996 | NULL((void*)0), NULL((void*)0), |
| 1997 | width, height, 1); |
| 1998 | } |
| 1999 | |
| 2000 | #if CAIRO_HAS_XLIB_XRENDER_SURFACE0 |
| 2001 | /** |
| 2002 | * cairo_xlib_surface_create_with_xrender_format: |
| 2003 | * @dpy: an X Display |
| 2004 | * @drawable: an X Drawable, (a Pixmap or a Window) |
| 2005 | * @screen: the X Screen associated with @drawable |
| 2006 | * @format: the picture format to use for drawing to @drawable. The depth |
| 2007 | * of @format must match the depth of the drawable. |
| 2008 | * @width: the current width of @drawable. |
| 2009 | * @height: the current height of @drawable. |
| 2010 | * |
| 2011 | * Creates an Xlib surface that draws to the given drawable. |
| 2012 | * The way that colors are represented in the drawable is specified |
| 2013 | * by the provided picture format. |
| 2014 | * |
| 2015 | * Note: If @drawable is a Window, then the function |
| 2016 | * cairo_xlib_surface_set_size() must be called whenever the size of the |
| 2017 | * window changes. |
| 2018 | * |
| 2019 | * Return value: the newly created surface |
| 2020 | * |
| 2021 | * Since: 1.0 |
| 2022 | **/ |
| 2023 | cairo_surface_t * |
| 2024 | cairo_xlib_surface_create_with_xrender_format_voidp_consume (Display *dpy, |
| 2025 | Drawable drawable, |
| 2026 | Screen *scr, |
| 2027 | XRenderPictFormat *format, |
| 2028 | int width, |
| 2029 | int height) |
| 2030 | { |
| 2031 | cairo_xlib_screen_t *screen; |
| 2032 | cairo_status_t status; |
| 2033 | |
| 2034 | if (! valid_size (width, height)) |
| 2035 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE)); |
| 2036 | |
| 2037 | status = _cairo_xlib_screen_get (dpy, scr, &screen); |
| 2038 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2039 | return _cairo_surface_create_in_error (status); |
| 2040 | |
| 2041 | X_DEBUG ((dpy, "create_with_xrender_format (drawable=%x)", (unsigned int) drawable)); |
| 2042 | |
| 2043 | return _cairo_xlib_surface_create_internal (screen, drawable, |
| 2044 | _visual_for_xrender_format (scr, format), |
| 2045 | format, width, height, 0); |
| 2046 | } |
| 2047 | |
| 2048 | /** |
| 2049 | * cairo_xlib_surface_get_xrender_format: |
| 2050 | * @surface: an xlib surface |
| 2051 | * |
| 2052 | * Gets the X Render picture format that @surface uses for rendering with the |
| 2053 | * X Render extension. If the surface was created by |
| 2054 | * cairo_xlib_surface_create_with_xrender_format() originally, the return |
| 2055 | * value is the format passed to that constructor. |
| 2056 | * |
| 2057 | * Return value: the XRenderPictFormat* associated with @surface, |
| 2058 | * or %NULL if the surface is not an xlib surface |
| 2059 | * or if the X Render extension is not available. |
| 2060 | * |
| 2061 | * Since: 1.6 |
| 2062 | **/ |
| 2063 | XRenderPictFormat * |
| 2064 | cairo_xlib_surface_get_xrender_format_moz_cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface) |
| 2065 | { |
| 2066 | cairo_xlib_surface_t *xlib_surface = (cairo_xlib_surface_t *) surface; |
| 2067 | |
| 2068 | /* Throw an error for a non-xlib surface */ |
| 2069 | if (! _cairo_surface_is_xlib (surface)) { |
| 2070 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2071 | return NULL((void*)0); |
| 2072 | } |
| 2073 | |
| 2074 | return xlib_surface->xrender_format; |
| 2075 | } |
| 2076 | #endif |
| 2077 | |
| 2078 | /** |
| 2079 | * cairo_xlib_surface_set_size: |
| 2080 | * @surface: a #cairo_surface_t for the XLib backend |
| 2081 | * @width: the new width of the surface |
| 2082 | * @height: the new height of the surface |
| 2083 | * |
| 2084 | * Informs cairo of the new size of the X Drawable underlying the |
| 2085 | * surface. For a surface created for a Window (rather than a Pixmap), |
| 2086 | * this function must be called each time the size of the window |
| 2087 | * changes. (For a subwindow, you are normally resizing the window |
| 2088 | * yourself, but for a toplevel window, it is necessary to listen for |
| 2089 | * ConfigureNotify events.) |
| 2090 | * |
| 2091 | * A Pixmap can never change size, so it is never necessary to call |
| 2092 | * this function on a surface created for a Pixmap. |
| 2093 | * |
| 2094 | * Since: 1.0 |
| 2095 | **/ |
| 2096 | void |
| 2097 | cairo_xlib_surface_set_size_moz_cairo_xlib_surface_set_size (cairo_surface_t *abstract_surface, |
| 2098 | int width, |
| 2099 | int height) |
| 2100 | { |
| 2101 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2102 | cairo_status_t status; |
| 2103 | |
| 2104 | if (unlikely (abstract_surface->status)(__builtin_expect (!!(abstract_surface->status), 0))) |
| 2105 | return; |
| 2106 | if (unlikely (abstract_surface->finished)(__builtin_expect (!!(abstract_surface->finished), 0))) { |
| 2107 | _cairo_surface_set_error (abstract_surface, |
| 2108 | _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); |
| 2109 | return; |
| 2110 | } |
| 2111 | |
| 2112 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2113 | _cairo_surface_set_error (abstract_surface, |
| 2114 | _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); |
| 2115 | return; |
| 2116 | } |
| 2117 | |
| 2118 | if (surface->width == width && surface->height == height) |
| 2119 | return; |
| 2120 | |
| 2121 | if (! valid_size (width, height)) { |
| 2122 | _cairo_surface_set_error (abstract_surface, |
| 2123 | _cairo_error (CAIRO_STATUS_INVALID_SIZE)); |
| 2124 | return; |
| 2125 | } |
| 2126 | |
| 2127 | status = _cairo_surface_flush (abstract_surface, 0); |
| 2128 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 2129 | _cairo_surface_set_error (abstract_surface, status); |
| 2130 | return; |
| 2131 | } |
| 2132 | |
| 2133 | _cairo_xlib_surface_discard_shm (surface); |
| 2134 | |
| 2135 | surface->width = width; |
| 2136 | surface->height = height; |
| 2137 | } |
| 2138 | |
| 2139 | /** |
| 2140 | * cairo_xlib_surface_set_drawable: |
| 2141 | * @surface: a #cairo_surface_t for the XLib backend |
| 2142 | * @drawable: the new drawable for the surface |
| 2143 | * @width: the width of the new drawable |
| 2144 | * @height: the height of the new drawable |
| 2145 | * |
| 2146 | * Informs cairo of a new X Drawable underlying the |
| 2147 | * surface. The drawable must match the display, screen |
| 2148 | * and format of the existing drawable or the application |
| 2149 | * will get X protocol errors and will probably terminate. |
| 2150 | * No checks are done by this function to ensure this |
| 2151 | * compatibility. |
| 2152 | * |
| 2153 | * Since: 1.0 |
| 2154 | **/ |
| 2155 | void |
| 2156 | cairo_xlib_surface_set_drawable_moz_cairo_xlib_surface_set_drawable (cairo_surface_t *abstract_surface, |
| 2157 | Drawable drawable, |
| 2158 | int width, |
| 2159 | int height) |
| 2160 | { |
| 2161 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *)abstract_surface; |
| 2162 | cairo_status_t status; |
| 2163 | |
| 2164 | if (unlikely (abstract_surface->status)(__builtin_expect (!!(abstract_surface->status), 0))) |
| 2165 | return; |
| 2166 | if (unlikely (abstract_surface->finished)(__builtin_expect (!!(abstract_surface->finished), 0))) { |
| 2167 | status = _cairo_surface_set_error (abstract_surface, |
| 2168 | _cairo_error (CAIRO_STATUS_SURFACE_FINISHED)); |
| 2169 | return; |
| 2170 | } |
| 2171 | |
| 2172 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2173 | status = _cairo_surface_set_error (abstract_surface, |
| 2174 | _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)); |
| 2175 | return; |
| 2176 | } |
| 2177 | |
| 2178 | if (! valid_size (width, height)) { |
| 2179 | status = _cairo_surface_set_error (abstract_surface, |
| 2180 | _cairo_error (CAIRO_STATUS_INVALID_SIZE)); |
| 2181 | return; |
| 2182 | } |
| 2183 | |
| 2184 | /* XXX: and what about this case? */ |
| 2185 | if (surface->owns_pixmap) |
| 2186 | return; |
| 2187 | |
| 2188 | status = _cairo_surface_flush (abstract_surface, 0); |
| 2189 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 2190 | _cairo_surface_set_error (abstract_surface, status); |
| 2191 | return; |
| 2192 | } |
| 2193 | |
| 2194 | if (surface->drawable != drawable) { |
| 2195 | cairo_xlib_display_t *display; |
| 2196 | |
| 2197 | status = _cairo_xlib_display_acquire (surface->base.device, &display); |
| 2198 | if (unlikely (status)(__builtin_expect (!!(status), 0))) |
| 2199 | return; |
| 2200 | |
| 2201 | X_DEBUG ((display->display, "set_drawable (drawable=%x)", (unsigned int) drawable)); |
| 2202 | |
| 2203 | if (surface->picture != None0L) { |
| 2204 | XRenderFreePicture_void_consume_free (display->display, surface->picture); |
| 2205 | if (unlikely (status)(__builtin_expect (!!(status), 0))) { |
| 2206 | status = _cairo_surface_set_error (&surface->base, status); |
| 2207 | return; |
| 2208 | } |
| 2209 | |
| 2210 | surface->picture = None0L; |
| 2211 | } |
| 2212 | |
| 2213 | cairo_device_release_moz_cairo_device_release (&display->base); |
| 2214 | |
| 2215 | surface->drawable = drawable; |
| 2216 | } |
| 2217 | |
| 2218 | if (surface->width != width || surface->height != height) { |
| 2219 | _cairo_xlib_surface_discard_shm (surface); |
| 2220 | |
| 2221 | surface->width = width; |
| 2222 | surface->height = height; |
| 2223 | } |
| 2224 | } |
| 2225 | |
| 2226 | /** |
| 2227 | * cairo_xlib_surface_get_display: |
| 2228 | * @surface: a #cairo_xlib_surface_t |
| 2229 | * |
| 2230 | * Get the X Display for the underlying X Drawable. |
| 2231 | * |
| 2232 | * Return value: the display. |
| 2233 | * |
| 2234 | * Since: 1.2 |
| 2235 | **/ |
| 2236 | Display * |
| 2237 | cairo_xlib_surface_get_display_moz_cairo_xlib_surface_get_display (cairo_surface_t *abstract_surface) |
| 2238 | { |
| 2239 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2240 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2241 | return NULL((void*)0); |
| 2242 | } |
| 2243 | |
| 2244 | return ((cairo_xlib_display_t *) abstract_surface->device)->display; |
| 2245 | } |
| 2246 | |
| 2247 | /** |
| 2248 | * cairo_xlib_surface_get_drawable: |
| 2249 | * @surface: a #cairo_xlib_surface_t |
| 2250 | * |
| 2251 | * Get the underlying X Drawable used for the surface. |
| 2252 | * |
| 2253 | * Return value: the drawable. |
| 2254 | * |
| 2255 | * Since: 1.2 |
| 2256 | **/ |
| 2257 | Drawable |
| 2258 | cairo_xlib_surface_get_drawable_moz_cairo_xlib_surface_get_drawable (cairo_surface_t *abstract_surface) |
| 2259 | { |
| 2260 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2261 | |
| 2262 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2263 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2264 | return 0; |
| 2265 | } |
| 2266 | |
| 2267 | return surface->drawable; |
| 2268 | } |
| 2269 | |
| 2270 | /** |
| 2271 | * cairo_xlib_surface_get_screen: |
| 2272 | * @surface: a #cairo_xlib_surface_t |
| 2273 | * |
| 2274 | * Get the X Screen for the underlying X Drawable. |
| 2275 | * |
| 2276 | * Return value: the screen. |
| 2277 | * |
| 2278 | * Since: 1.2 |
| 2279 | **/ |
| 2280 | Screen * |
| 2281 | cairo_xlib_surface_get_screen_moz_cairo_xlib_surface_get_screen (cairo_surface_t *abstract_surface) |
| 2282 | { |
| 2283 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2284 | |
| 2285 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2286 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2287 | return NULL((void*)0); |
| 2288 | } |
| 2289 | |
| 2290 | return surface->screen->screen; |
| 2291 | } |
| 2292 | |
| 2293 | /** |
| 2294 | * cairo_xlib_surface_get_visual: |
| 2295 | * @surface: a #cairo_xlib_surface_t |
| 2296 | * |
| 2297 | * Gets the X Visual associated with @surface, suitable for use with the |
| 2298 | * underlying X Drawable. If @surface was created by |
| 2299 | * cairo_xlib_surface_create(), the return value is the Visual passed to that |
| 2300 | * constructor. |
| 2301 | * |
| 2302 | * Return value: the Visual or %NULL if there is no appropriate Visual for |
| 2303 | * @surface. |
| 2304 | * |
| 2305 | * Since: 1.2 |
| 2306 | **/ |
| 2307 | Visual * |
| 2308 | cairo_xlib_surface_get_visual_moz_cairo_xlib_surface_get_visual (cairo_surface_t *surface) |
| 2309 | { |
| 2310 | cairo_xlib_surface_t *xlib_surface = (cairo_xlib_surface_t *) surface; |
| 2311 | |
| 2312 | if (! _cairo_surface_is_xlib (surface)) { |
| 2313 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2314 | return NULL((void*)0); |
| 2315 | } |
| 2316 | |
| 2317 | return xlib_surface->visual; |
| 2318 | } |
| 2319 | |
| 2320 | /** |
| 2321 | * cairo_xlib_surface_get_depth: |
| 2322 | * @surface: a #cairo_xlib_surface_t |
| 2323 | * |
| 2324 | * Get the number of bits used to represent each pixel value. |
| 2325 | * |
| 2326 | * Return value: the depth of the surface in bits. |
| 2327 | * |
| 2328 | * Since: 1.2 |
| 2329 | **/ |
| 2330 | int |
| 2331 | cairo_xlib_surface_get_depth_moz_cairo_xlib_surface_get_depth (cairo_surface_t *abstract_surface) |
| 2332 | { |
| 2333 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2334 | |
| 2335 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2336 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2337 | return 0; |
| 2338 | } |
| 2339 | |
| 2340 | return surface->depth; |
| 2341 | } |
| 2342 | |
| 2343 | /** |
| 2344 | * cairo_xlib_surface_get_width: |
| 2345 | * @surface: a #cairo_xlib_surface_t |
| 2346 | * |
| 2347 | * Get the width of the X Drawable underlying the surface in pixels. |
| 2348 | * |
| 2349 | * Return value: the width of the surface in pixels. |
| 2350 | * |
| 2351 | * Since: 1.2 |
| 2352 | **/ |
| 2353 | int |
| 2354 | cairo_xlib_surface_get_width_moz_cairo_xlib_surface_get_width (cairo_surface_t *abstract_surface) |
| 2355 | { |
| 2356 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2357 | |
| 2358 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2359 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2360 | return 0; |
| 2361 | } |
| 2362 | |
| 2363 | return surface->width; |
| 2364 | } |
| 2365 | |
| 2366 | /** |
| 2367 | * cairo_xlib_surface_get_height: |
| 2368 | * @surface: a #cairo_xlib_surface_t |
| 2369 | * |
| 2370 | * Get the height of the X Drawable underlying the surface in pixels. |
| 2371 | * |
| 2372 | * Return value: the height of the surface in pixels. |
| 2373 | * |
| 2374 | * Since: 1.2 |
| 2375 | **/ |
| 2376 | int |
| 2377 | cairo_xlib_surface_get_height_moz_cairo_xlib_surface_get_height (cairo_surface_t *abstract_surface) |
| 2378 | { |
| 2379 | cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface; |
| 2380 | |
| 2381 | if (! _cairo_surface_is_xlib (abstract_surface)) { |
| 2382 | _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH)do { cairo_status_t status__ = _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH ); (void) status__; } while (0); |
| 2383 | return 0; |
| 2384 | } |
| 2385 | |
| 2386 | return surface->height; |
| 2387 | } |
| 2388 | |
| 2389 | #endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */ |