Bug Summary

File:root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-screen.c
Warning:line 164, column 31
Value stored to 'display' during its initialization is never read

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name cairo-xlib-screen.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -ffp-contract=off -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/gfx/cairo/cairo/src -fcoverage-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/gfx/cairo/cairo/src -resource-dir /usr/lib/llvm-21/lib/clang/21 -include /root/firefox-clang/config/gcc_hidden.h -include /root/firefox-clang/obj-x86_64-pc-linux-gnu/mozilla-config.h -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/system_wrappers -U _FORTIFY_SOURCE -D _FORTIFY_SOURCE=2 -D _GLIBCXX_ASSERTIONS -D DEBUG=1 -D HAVE_FT_LOAD_SFNT_TABLE -D PACKAGE_VERSION="moz" -D PACKAGE_BUGREPORT="http://bugzilla.mozilla.org/" -D CAIRO_HAS_PTHREAD -D _GNU_SOURCE -D MOZ_TREE_PIXMAN -D SIZEOF_VOID_P=__SIZEOF_POINTER__ -D SIZEOF_INT=__SIZEOF_INT__ -D SIZEOF_LONG=__SIZEOF_LONG__ -D SIZEOF_LONG_LONG=__SIZEOF_LONG_LONG__ -D HAVE_UINT64_T -D HAVE_CXX11_ATOMIC_PRIMITIVES -D MOZ_HAS_MOZGLUE -D MOZILLA_INTERNAL_API -D IMPL_LIBXUL -D MOZ_SUPPORT_LEAKCHECKING -D STATIC_EXPORTABLE_JS_API -I /root/firefox-clang/gfx/cairo/cairo/src -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/gfx/cairo/cairo/src -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nspr -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nss -D MOZILLA_CLIENT -I /usr/include/freetype2 -I /usr/include/libpng16 -I /usr/include/freetype2 -I /usr/include/libpng16 -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-error=tautological-type-limit-compare -Wno-range-loop-analysis -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wno-psabi -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -Wno-enum-compare -Wno-int-to-pointer-cast -Wno-int-conversion -Wno-incompatible-pointer-types -Wno-sign-compare -Wno-type-limits -Wno-missing-field-initializers -Wno-conversion -Wno-narrowing -Wno-switch -Wno-unused -Wno-unused-variable -Wno-error=uninitialized -Wno-absolute-value -Wno-deprecated-register -Wno-incompatible-pointer-types -Wno-macro-redefined -Wno-shift-negative-value -Wno-tautological-compare -Wno-tautological-constant-out-of-range-compare -Wno-unreachable-code -ferror-limit 19 -fstrict-flex-arrays=1 -stack-protector 2 -fstack-clash-protection -ftrivial-auto-var-init=pattern -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2025-06-30-093548-1913035-1 -x c /root/firefox-clang/gfx/cairo/cairo/src/cairo-xlib-screen.c
1/* Cairo - a vector graphics library with display and print output
2 *
3 * Copyright © 2005 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it either under the terms of the GNU Lesser General Public
7 * License version 2.1 as published by the Free Software Foundation
8 * (the "LGPL") or, at your option, under the terms of the Mozilla
9 * Public License Version 1.1 (the "MPL"). If you do not alter this
10 * notice, a recipient may use your version of this file under either
11 * the MPL or the LGPL.
12 *
13 * You should have received a copy of the LGPL along with this library
14 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
16 * You should have received a copy of the MPL along with this library
17 * in the file COPYING-MPL-1.1
18 *
19 * The contents of this file are subject to the Mozilla Public License
20 * Version 1.1 (the "License"); you may not use this file except in
21 * compliance with the License. You may obtain a copy of the License at
22 * http://www.mozilla.org/MPL/
23 *
24 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
25 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
26 * the specific language governing rights and limitations.
27 *
28 * The Original Code is the cairo graphics library.
29 *
30 * The Initial Developer of the Original Code is Red Hat, Inc.
31 *
32 * Partially on code from xftdpy.c
33 *
34 * Copyright © 2000 Keith Packard
35 *
36 * Permission to use, copy, modify, distribute, and sell this software and its
37 * documentation for any purpose is hereby granted without fee, provided that
38 * the above copyright notice appear in all copies and that both that
39 * copyright notice and this permission notice appear in supporting
40 * documentation, and that the name of Keith Packard not be used in
41 * advertising or publicity pertaining to distribution of the software without
42 * specific, written prior permission. Keith Packard makes no
43 * representations about the suitability of this software for any purpose. It
44 * is provided "as is" without express or implied warranty.
45 *
46 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
47 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
48 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
49 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
50 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
51 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
52 * PERFORMANCE OF THIS SOFTWARE.
53 */
54
55#include "cairoint.h"
56
57#if !CAIRO_HAS_XLIB_XCB_FUNCTIONS
58
59#include "cairo-xlib-private.h"
60#include "cairo-xlib-xrender-private.h"
61
62#include "cairo-xlib-surface-private.h"
63#include "cairo-error-private.h"
64#include "cairo-list-inline.h"
65
66#include "cairo-fontconfig-private.h"
67
68static int
69parse_boolean (const char *v)
70{
71 char c0, c1;
72
73 c0 = *v;
74 if (c0 == 't' || c0 == 'T' || c0 == 'y' || c0 == 'Y' || c0 == '1')
75 return 1;
76 if (c0 == 'f' || c0 == 'F' || c0 == 'n' || c0 == 'N' || c0 == '0')
77 return 0;
78 if (c0 == 'o')
79 {
80 c1 = v[1];
81 if (c1 == 'n' || c1 == 'N')
82 return 1;
83 if (c1 == 'f' || c1 == 'F')
84 return 0;
85 }
86
87 return -1;
88}
89
90static cairo_bool_t
91get_boolean_default (Display *dpy,
92 const char *option,
93 cairo_bool_t *value)
94{
95 char *v;
96 int i;
97
98 v = XGetDefault (dpy, "Xft", option);
99 if (v) {
100 i = parse_boolean (v);
101 if (i >= 0) {
102 *value = i;
103 return TRUE1;
104 }
105 }
106
107 return FALSE0;
108}
109
110static cairo_bool_t
111get_integer_default (Display *dpy,
112 const char *option,
113 int *value)
114{
115 char *v, *e;
116
117 v = XGetDefault (dpy, "Xft", option);
118 if (v) {
119#if CAIRO_HAS_FC_FONT1
120 if (FcNameConstant ((FcChar8 *) v, value))
121 return TRUE1;
122#endif
123
124 *value = strtol (v, &e, 0);
125 if (e != v)
126 return TRUE1;
127 }
128
129 return FALSE0;
130}
131
132static void
133_cairo_xlib_init_screen_font_options (Display *dpy,
134 cairo_xlib_screen_t *info)
135{
136 cairo_bool_t xft_hinting;
137 cairo_bool_t xft_antialias;
138 int xft_hintstyle;
139 int xft_rgba;
140 int xft_lcdfilter;
141 cairo_antialias_t antialias;
142 cairo_subpixel_order_t subpixel_order;
143 cairo_lcd_filter_t lcd_filter;
144 cairo_hint_style_t hint_style;
145
146 if (!get_boolean_default (dpy, "antialias", &xft_antialias))
147 xft_antialias = TRUE1;
148
149 if (!get_integer_default (dpy, "lcdfilter", &xft_lcdfilter)) {
150 /* -1 is an non-existant Fontconfig constant used to differentiate
151 * the case when no lcdfilter property is available.
152 */
153 xft_lcdfilter = -1;
154 }
155
156 if (!get_boolean_default (dpy, "hinting", &xft_hinting))
157 xft_hinting = TRUE1;
158
159 if (!get_integer_default (dpy, "hintstyle", &xft_hintstyle))
160 xft_hintstyle = FC_HINT_FULL3;
161
162 if (!get_integer_default (dpy, "rgba", &xft_rgba))
163 {
164 cairo_xlib_display_t *display = (cairo_xlib_display_t *) info->device;
Value stored to 'display' during its initialization is never read
165
166 xft_rgba = FC_RGBA_UNKNOWN0;
167
168#if RENDER_MAJOR > 0 || RENDER_MINOR >= 6
169 if (display->render_major > 0 || display->render_minor >= 6) {
170 int render_order = XRenderQuerySubpixelOrder_int_consume (dpy,
171 XScreenNumberOfScreen (info->screen));
172
173 switch (render_order) {
174 default:
175 case SubPixelUnknown0:
176 xft_rgba = FC_RGBA_UNKNOWN0;
177 break;
178 case SubPixelHorizontalRGB1:
179 xft_rgba = FC_RGBA_RGB1;
180 break;
181 case SubPixelHorizontalBGR2:
182 xft_rgba = FC_RGBA_BGR2;
183 break;
184 case SubPixelVerticalRGB3:
185 xft_rgba = FC_RGBA_VRGB3;
186 break;
187 case SubPixelVerticalBGR4:
188 xft_rgba = FC_RGBA_VBGR4;
189 break;
190 case SubPixelNone5:
191 xft_rgba = FC_RGBA_NONE5;
192 break;
193 }
194 }
195#endif
196 }
197
198 if (xft_hinting) {
199 switch (xft_hintstyle) {
200 case FC_HINT_NONE0:
201 hint_style = CAIRO_HINT_STYLE_NONE;
202 break;
203 case FC_HINT_SLIGHT1:
204 hint_style = CAIRO_HINT_STYLE_SLIGHT;
205 break;
206 case FC_HINT_MEDIUM2:
207 hint_style = CAIRO_HINT_STYLE_MEDIUM;
208 break;
209 case FC_HINT_FULL3:
210 hint_style = CAIRO_HINT_STYLE_FULL;
211 break;
212 default:
213 hint_style = CAIRO_HINT_STYLE_DEFAULT;
214 }
215 } else {
216 hint_style = CAIRO_HINT_STYLE_NONE;
217 }
218
219 switch (xft_rgba) {
220 case FC_RGBA_RGB1:
221 subpixel_order = CAIRO_SUBPIXEL_ORDER_RGB;
222 break;
223 case FC_RGBA_BGR2:
224 subpixel_order = CAIRO_SUBPIXEL_ORDER_BGR;
225 break;
226 case FC_RGBA_VRGB3:
227 subpixel_order = CAIRO_SUBPIXEL_ORDER_VRGB;
228 break;
229 case FC_RGBA_VBGR4:
230 subpixel_order = CAIRO_SUBPIXEL_ORDER_VBGR;
231 break;
232 case FC_RGBA_UNKNOWN0:
233 case FC_RGBA_NONE5:
234 default:
235 subpixel_order = CAIRO_SUBPIXEL_ORDER_DEFAULT;
236 }
237
238 switch (xft_lcdfilter) {
239 case FC_LCD_NONE0:
240 lcd_filter = CAIRO_LCD_FILTER_NONE;
241 break;
242 case FC_LCD_DEFAULT1:
243 lcd_filter = CAIRO_LCD_FILTER_FIR5;
244 break;
245 case FC_LCD_LIGHT2:
246 lcd_filter = CAIRO_LCD_FILTER_FIR3;
247 break;
248 case FC_LCD_LEGACY3:
249 lcd_filter = CAIRO_LCD_FILTER_INTRA_PIXEL;
250 break;
251 default:
252 lcd_filter = CAIRO_LCD_FILTER_DEFAULT;
253 break;
254 }
255
256 if (xft_antialias) {
257 if (subpixel_order == CAIRO_SUBPIXEL_ORDER_DEFAULT)
258 antialias = CAIRO_ANTIALIAS_GRAY;
259 else
260 antialias = CAIRO_ANTIALIAS_SUBPIXEL;
261 } else {
262 antialias = CAIRO_ANTIALIAS_NONE;
263 }
264
265 cairo_font_options_set_hint_style_moz_cairo_font_options_set_hint_style (&info->font_options, hint_style);
266 cairo_font_options_set_antialias_moz_cairo_font_options_set_antialias (&info->font_options, antialias);
267 cairo_font_options_set_subpixel_order_moz_cairo_font_options_set_subpixel_order (&info->font_options, subpixel_order);
268 cairo_font_options_set_lcd_filter_moz_cairo_font_options_set_lcd_filter (&info->font_options, lcd_filter);
269 cairo_font_options_set_hint_metrics_moz_cairo_font_options_set_hint_metrics (&info->font_options, CAIRO_HINT_METRICS_ON);
270}
271
272void
273_cairo_xlib_screen_destroy (cairo_xlib_display_t *display,
274 cairo_xlib_screen_t *info)
275{
276 Display *dpy;
277 int i;
278
279 dpy = display->display;
280
281 while (! cairo_list_is_empty (&info->surfaces)) {
282 cairo_xlib_surface_t *surface;
283
284 surface = cairo_list_first_entry (&info->surfaces,({ const __typeof__ (((cairo_xlib_surface_t *) 0)->link) *
mptr__ = ((&info->surfaces)->next); (cairo_xlib_surface_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_surface_t
, link)); })
285 cairo_xlib_surface_t,({ const __typeof__ (((cairo_xlib_surface_t *) 0)->link) *
mptr__ = ((&info->surfaces)->next); (cairo_xlib_surface_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_surface_t
, link)); })
286 link)({ const __typeof__ (((cairo_xlib_surface_t *) 0)->link) *
mptr__ = ((&info->surfaces)->next); (cairo_xlib_surface_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_surface_t
, link)); });
287 cairo_surface_finish_moz_cairo_surface_finish (&surface->base);
288 }
289
290 for (i = 0; i < ARRAY_LENGTH (info->gc)((int) (sizeof (info->gc) / sizeof (info->gc[0]))); i++) {
291 if (info->gc_depths[i] != 0) {
292 XFreeGC (dpy, info->gc[i]);
293 info->gc_depths[i] = 0;
294 }
295 }
296
297 while (! cairo_list_is_empty (&info->visuals)) {
298 _cairo_xlib_visual_info_destroy (cairo_list_first_entry (&info->visuals,({ const __typeof__ (((cairo_xlib_visual_info_t *) 0)->link
) *mptr__ = ((&info->visuals)->next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); })
299 cairo_xlib_visual_info_t,({ const __typeof__ (((cairo_xlib_visual_info_t *) 0)->link
) *mptr__ = ((&info->visuals)->next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); })
300 link)({ const __typeof__ (((cairo_xlib_visual_info_t *) 0)->link
) *mptr__ = ((&info->visuals)->next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); }));
301 }
302
303 cairo_list_del (&info->link);
304
305 free (info);
306}
307
308cairo_status_t
309_cairo_xlib_screen_get (Display *dpy,
310 Screen *screen,
311 cairo_xlib_screen_t **out)
312{
313 cairo_xlib_display_t *display;
314 cairo_device_t *device;
315 cairo_xlib_screen_t *info;
316 cairo_status_t status;
317
318 device = _cairo_xlib_device_create (dpy);
319 status = device->status;
320 if (unlikely (status)(__builtin_expect (!!(status), 0)))
321 goto CLEANUP_DEVICE;
322
323 status = _cairo_xlib_display_acquire (device, &display);
324 if (unlikely (status)(__builtin_expect (!!(status), 0)))
325 goto CLEANUP_DEVICE;
326
327 info = _cairo_xlib_display_get_screen (display, screen);
328 if (info != NULL((void*)0)) {
329 *out = info;
330 goto CLEANUP_DISPLAY;
331 }
332
333 info = _cairo_malloc (sizeof (cairo_xlib_screen_t))((sizeof (cairo_xlib_screen_t)) != 0 ? malloc(sizeof (cairo_xlib_screen_t
)) : ((void*)0));
334 if (unlikely (info == NULL)(__builtin_expect (!!(info == ((void*)0)), 0))) {
335 status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
336 goto CLEANUP_DISPLAY;
337 }
338
339 info->device = device;
340 info->screen = screen;
341 info->has_font_options = FALSE0;
342 memset (info->gc_depths, 0, sizeof (info->gc_depths));
343 memset (info->gc, 0, sizeof (info->gc));
344
345 cairo_list_init (&info->surfaces);
346 cairo_list_init (&info->visuals);
347 cairo_list_add (&info->link, &display->screens);
348
349 *out = info;
350
351 CLEANUP_DISPLAY:
352 cairo_device_release_moz_cairo_device_release (&display->base);
353
354 CLEANUP_DEVICE:
355 cairo_device_destroy_moz_cairo_device_destroy (device);
356 return status;
357}
358
359GC
360_cairo_xlib_screen_get_gc (cairo_xlib_display_t *display,
361 cairo_xlib_screen_t *info,
362 int depth,
363 Drawable drawable)
364{
365 GC gc = NULL((void*)0);
366 int i;
367
368 for (i = 0; i < ARRAY_LENGTH (info->gc)((int) (sizeof (info->gc) / sizeof (info->gc[0]))); i++) {
369 if (info->gc_depths[i] == depth) {
370 info->gc_depths[i] = 0;
371 gc = info->gc[i];
372 break;
373 }
374 }
375
376 if (gc == NULL((void*)0)) {
377 XGCValues gcv;
378
379 gcv.graphics_exposures = False0;
380 gcv.fill_style = FillTiled1;
381 gc = XCreateGC (display->display,
382 drawable,
383 GCGraphicsExposures(1L<<16) | GCFillStyle(1L<<8), &gcv);
384 }
385
386 return gc;
387}
388
389void
390_cairo_xlib_screen_put_gc (cairo_xlib_display_t *display,
391 cairo_xlib_screen_t *info,
392 int depth,
393 GC gc)
394{
395 int i;
396
397 for (i = 0; i < ARRAY_LENGTH (info->gc)((int) (sizeof (info->gc) / sizeof (info->gc[0]))); i++) {
398 if (info->gc_depths[i] == 0)
399 break;
400 }
401
402 if (i == ARRAY_LENGTH (info->gc)((int) (sizeof (info->gc) / sizeof (info->gc[0])))) {
403 /* perform random substitution to ensure fair caching over depths */
404 i = rand () % ARRAY_LENGTH (info->gc)((int) (sizeof (info->gc) / sizeof (info->gc[0])));
405 XFreeGC(display->display, info->gc[i]);
406 }
407
408 info->gc[i] = gc;
409 info->gc_depths[i] = depth;
410}
411
412cairo_status_t
413_cairo_xlib_screen_get_visual_info (cairo_xlib_display_t *display,
414 cairo_xlib_screen_t *info,
415 Visual *v,
416 cairo_xlib_visual_info_t **out)
417{
418 cairo_xlib_visual_info_t *visual;
419 cairo_status_t status;
420
421 cairo_list_foreach_entry (visual,for (visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = ((&info->visuals)->next)
; (cairo_xlib_visual_info_t *) ((char *) mptr__ - __builtin_offsetof
(cairo_xlib_visual_info_t, link)); }); &visual->link !=
(&info->visuals); visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = (visual->link.next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); }))
422 cairo_xlib_visual_info_t,for (visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = ((&info->visuals)->next)
; (cairo_xlib_visual_info_t *) ((char *) mptr__ - __builtin_offsetof
(cairo_xlib_visual_info_t, link)); }); &visual->link !=
(&info->visuals); visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = (visual->link.next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); }))
423 &info->visuals,for (visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = ((&info->visuals)->next)
; (cairo_xlib_visual_info_t *) ((char *) mptr__ - __builtin_offsetof
(cairo_xlib_visual_info_t, link)); }); &visual->link !=
(&info->visuals); visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = (visual->link.next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); }))
424 link)for (visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = ((&info->visuals)->next)
; (cairo_xlib_visual_info_t *) ((char *) mptr__ - __builtin_offsetof
(cairo_xlib_visual_info_t, link)); }); &visual->link !=
(&info->visuals); visual = ({ const __typeof__ (((cairo_xlib_visual_info_t
*) 0)->link) *mptr__ = (visual->link.next); (cairo_xlib_visual_info_t
*) ((char *) mptr__ - __builtin_offsetof(cairo_xlib_visual_info_t
, link)); }))
425 {
426 if (visual->visualid == v->visualid) {
427 *out = visual;
428 return CAIRO_STATUS_SUCCESS;
429 }
430 }
431
432 status = _cairo_xlib_visual_info_create (display->display,
433 XScreenNumberOfScreen (info->screen),
434 v->visualid,
435 &visual);
436 if (unlikely (status)(__builtin_expect (!!(status), 0)))
437 return status;
438
439 cairo_list_add (&visual->link, &info->visuals);
440 *out = visual;
441 return CAIRO_STATUS_SUCCESS;
442}
443
444cairo_font_options_t *
445_cairo_xlib_screen_get_font_options (cairo_xlib_screen_t *info)
446{
447 if (! info->has_font_options) {
448 _cairo_font_options_init_default (&info->font_options);
449 _cairo_font_options_set_round_glyph_positions (&info->font_options, CAIRO_ROUND_GLYPH_POS_ON);
450
451 if (info->screen != NULL((void*)0)) {
452 cairo_xlib_display_t *display;
453
454 if (! _cairo_xlib_display_acquire (info->device, &display)) {
455 _cairo_xlib_init_screen_font_options (display->display,
456 info);
457 cairo_device_release_moz_cairo_device_release (&display->base);
458 }
459 }
460
461 info->has_font_options = TRUE1;
462 }
463
464 return &info->font_options;
465}
466
467#endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */