1990 lines
62 KiB
C
1990 lines
62 KiB
C
/************************************************************************
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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************************************************************************/
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/* The panoramix components contained the following notice */
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/*
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Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
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BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Digital Equipment Corporation
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shall not be used in advertising or otherwise to promote the sale, use or other
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dealings in this Software without prior written authorization from Digital
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Equipment Corporation.
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******************************************************************/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xmd.h>
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#include <X11/Xproto.h>
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#include "scrnintstr.h"
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#include "resource.h"
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#include "dixstruct.h"
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#include "cursorstr.h"
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#include "misc.h"
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#include "opaque.h"
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#include "dixfontstr.h"
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#include "closestr.h"
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#include "dixfont.h"
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#include "xace.h"
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#ifdef XF86BIGFONT
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#include "xf86bigfontsrv.h"
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#endif
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extern void *fosNaturalParams;
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extern FontPtr defaultFont;
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static FontPathElementPtr *font_path_elements = (FontPathElementPtr *) 0;
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static int num_fpes = 0;
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static FPEFunctions *fpe_functions = (FPEFunctions *) 0;
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static int num_fpe_types = 0;
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static unsigned char *font_path_string;
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static int num_slept_fpes = 0;
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static int size_slept_fpes = 0;
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static FontPathElementPtr *slept_fpes = (FontPathElementPtr *) 0;
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static FontPatternCachePtr patternCache;
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static int
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FontToXError(int err)
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{
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switch (err) {
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case Successful:
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return Success;
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case AllocError:
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return BadAlloc;
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case BadFontName:
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return BadName;
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case BadFontPath:
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case BadFontFormat: /* is there something better? */
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case BadCharRange:
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return BadValue;
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default:
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return err;
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}
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}
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static int
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LoadGlyphs(ClientPtr client, FontPtr pfont, unsigned nchars, int item_size,
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unsigned char *data)
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{
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if (fpe_functions[pfont->fpe->type].load_glyphs)
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return (*fpe_functions[pfont->fpe->type].load_glyphs)
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(client, pfont, 0, nchars, item_size, data);
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else
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return Successful;
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}
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void
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dixGetGlyphs(FontPtr font, unsigned long count, unsigned char *chars,
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FontEncoding fontEncoding,
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unsigned long *glyphcount, /* RETURN */
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CharInfoPtr *glyphs) /* RETURN */
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{
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(*font->get_glyphs) (font, count, chars, fontEncoding, glyphcount, glyphs);
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}
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/*
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* adding RT_FONT prevents conflict with default cursor font
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*/
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Bool
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SetDefaultFont(const char *defaultfontname)
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{
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int err;
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FontPtr pf;
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XID fid;
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fid = FakeClientID(0);
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err = OpenFont(serverClient, fid, FontLoadAll | FontOpenSync,
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(unsigned) strlen(defaultfontname), defaultfontname);
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if (err != Success)
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return FALSE;
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err = dixLookupResourceByType((void **) &pf, fid, RT_FONT, serverClient,
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DixReadAccess);
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if (err != Success)
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return FALSE;
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defaultFont = pf;
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return TRUE;
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}
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/*
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* note that the font wakeup queue is not refcounted. this is because
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* an fpe needs to be added when it's inited, and removed when it's finally
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* freed, in order to handle any data that isn't requested, like FS events.
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*
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* since the only thing that should call these routines is the renderer's
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* init_fpe() and free_fpe(), there shouldn't be any problem in using
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* freed data.
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*/
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static void
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QueueFontWakeup(FontPathElementPtr fpe)
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{
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int i;
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FontPathElementPtr *new;
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for (i = 0; i < num_slept_fpes; i++) {
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if (slept_fpes[i] == fpe) {
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return;
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}
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}
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if (num_slept_fpes == size_slept_fpes) {
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new = reallocarray(slept_fpes, size_slept_fpes + 4,
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sizeof(FontPathElementPtr));
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if (!new)
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return;
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slept_fpes = new;
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size_slept_fpes += 4;
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}
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slept_fpes[num_slept_fpes] = fpe;
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num_slept_fpes++;
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}
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static void
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RemoveFontWakeup(FontPathElementPtr fpe)
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{
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int i, j;
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for (i = 0; i < num_slept_fpes; i++) {
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if (slept_fpes[i] == fpe) {
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for (j = i; j < num_slept_fpes; j++) {
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slept_fpes[j] = slept_fpes[j + 1];
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}
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num_slept_fpes--;
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return;
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}
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}
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}
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static void
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FontWakeup(void *data, int count, void *LastSelectMask)
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{
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int i;
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FontPathElementPtr fpe;
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if (count < 0)
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return;
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/* wake up any fpe's that may be waiting for information */
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for (i = 0; i < num_slept_fpes; i++) {
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fpe = slept_fpes[i];
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(void) (*fpe_functions[fpe->type].wakeup_fpe) (fpe, LastSelectMask);
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}
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}
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/* XXX -- these two funcs may want to be broken into macros */
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static void
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UseFPE(FontPathElementPtr fpe)
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{
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fpe->refcount++;
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}
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static void
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FreeFPE(FontPathElementPtr fpe)
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{
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fpe->refcount--;
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if (fpe->refcount == 0) {
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(*fpe_functions[fpe->type].free_fpe) (fpe);
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free((void *) fpe->name);
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free(fpe);
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}
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}
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static Bool
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doOpenFont(ClientPtr client, OFclosurePtr c)
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{
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FontPtr pfont = NullFont;
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FontPathElementPtr fpe = NULL;
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ScreenPtr pScr;
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int err = Successful;
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int i;
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char *alias, *newname;
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int newlen;
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int aliascount = 20;
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/*
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* Decide at runtime what FontFormat to use.
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*/
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Mask FontFormat =
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((screenInfo.imageByteOrder == LSBFirst) ?
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BitmapFormatByteOrderLSB : BitmapFormatByteOrderMSB) |
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((screenInfo.bitmapBitOrder == LSBFirst) ?
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BitmapFormatBitOrderLSB : BitmapFormatBitOrderMSB) |
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BitmapFormatImageRectMin |
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#if GLYPHPADBYTES == 1
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BitmapFormatScanlinePad8 |
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#endif
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#if GLYPHPADBYTES == 2
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BitmapFormatScanlinePad16 |
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#endif
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#if GLYPHPADBYTES == 4
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BitmapFormatScanlinePad32 |
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#endif
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#if GLYPHPADBYTES == 8
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BitmapFormatScanlinePad64 |
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#endif
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BitmapFormatScanlineUnit8;
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if (client->clientGone) {
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if (c->current_fpe < c->num_fpes) {
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fpe = c->fpe_list[c->current_fpe];
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(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
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}
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err = Successful;
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goto bail;
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}
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while (c->current_fpe < c->num_fpes) {
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fpe = c->fpe_list[c->current_fpe];
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err = (*fpe_functions[fpe->type].open_font)
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((void *) client, fpe, c->flags,
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c->fontname, c->fnamelen, FontFormat,
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BitmapFormatMaskByte |
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BitmapFormatMaskBit |
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BitmapFormatMaskImageRectangle |
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BitmapFormatMaskScanLinePad |
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BitmapFormatMaskScanLineUnit,
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c->fontid, &pfont, &alias,
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c->non_cachable_font && c->non_cachable_font->fpe == fpe ?
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c->non_cachable_font : (FontPtr) 0);
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if (err == FontNameAlias && alias) {
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newlen = strlen(alias);
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newname = (char *) realloc((char *) c->fontname, newlen);
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if (!newname) {
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err = AllocError;
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break;
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}
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memmove(newname, alias, newlen);
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c->fontname = newname;
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c->fnamelen = newlen;
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c->current_fpe = 0;
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if (--aliascount <= 0) {
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/* We've tried resolving this alias 20 times, we're
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* probably stuck in an infinite loop of aliases pointing
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* to each other - time to take emergency exit!
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*/
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err = BadImplementation;
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break;
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}
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continue;
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}
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if (err == BadFontName) {
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c->current_fpe++;
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continue;
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}
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if (err == Suspended) {
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if (!ClientIsAsleep(client))
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ClientSleep(client, (ClientSleepProcPtr) doOpenFont, c);
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return TRUE;
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}
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break;
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}
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if (err != Successful)
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goto bail;
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if (!pfont) {
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err = BadFontName;
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goto bail;
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}
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/* check values for firstCol, lastCol, firstRow, and lastRow */
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if (pfont->info.firstCol > pfont->info.lastCol ||
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pfont->info.firstRow > pfont->info.lastRow ||
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pfont->info.lastCol - pfont->info.firstCol > 255) {
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err = AllocError;
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goto bail;
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}
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if (!pfont->fpe)
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pfont->fpe = fpe;
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pfont->refcnt++;
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if (pfont->refcnt == 1) {
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UseFPE(pfont->fpe);
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for (i = 0; i < screenInfo.numScreens; i++) {
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pScr = screenInfo.screens[i];
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if (pScr->RealizeFont) {
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if (!(*pScr->RealizeFont) (pScr, pfont)) {
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CloseFont(pfont, (Font) 0);
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err = AllocError;
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goto bail;
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}
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}
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}
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}
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if (!AddResource(c->fontid, RT_FONT, (void *) pfont)) {
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err = AllocError;
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goto bail;
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}
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if (patternCache && pfont != c->non_cachable_font)
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CacheFontPattern(patternCache, c->origFontName, c->origFontNameLen,
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pfont);
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bail:
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if (err != Successful && c->client != serverClient) {
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SendErrorToClient(c->client, X_OpenFont, 0,
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c->fontid, FontToXError(err));
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}
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ClientWakeup(c->client);
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for (i = 0; i < c->num_fpes; i++) {
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FreeFPE(c->fpe_list[i]);
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}
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free(c->fpe_list);
|
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free((void *) c->fontname);
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free(c);
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return TRUE;
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}
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int
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OpenFont(ClientPtr client, XID fid, Mask flags, unsigned lenfname,
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const char *pfontname)
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{
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OFclosurePtr c;
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int i;
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FontPtr cached = (FontPtr) 0;
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if (!lenfname || lenfname > XLFDMAXFONTNAMELEN)
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return BadName;
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if (patternCache) {
|
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|
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/*
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** Check name cache. If we find a cached version of this font that
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** is cachable, immediately satisfy the request with it. If we find
|
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** a cached version of this font that is non-cachable, we do not
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** satisfy the request with it. Instead, we pass the FontPtr to the
|
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** FPE's open_font code (the fontfile FPE in turn passes the
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** information to the rasterizer; the fserve FPE ignores it).
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**
|
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** Presumably, the font is marked non-cachable because the FPE has
|
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** put some licensing restrictions on it. If the FPE, using
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** whatever logic it relies on, determines that it is willing to
|
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** share this existing font with the client, then it has the option
|
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** to return the FontPtr we passed it as the newly-opened font.
|
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** This allows the FPE to exercise its licensing logic without
|
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** having to create another instance of a font that already exists.
|
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*/
|
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|
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cached = FindCachedFontPattern(patternCache, pfontname, lenfname);
|
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if (cached && cached->info.cachable) {
|
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if (!AddResource(fid, RT_FONT, (void *) cached))
|
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return BadAlloc;
|
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cached->refcnt++;
|
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return Success;
|
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}
|
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}
|
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c = malloc(sizeof(OFclosureRec));
|
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if (!c)
|
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return BadAlloc;
|
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c->fontname = malloc(lenfname);
|
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c->origFontName = pfontname;
|
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c->origFontNameLen = lenfname;
|
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if (!c->fontname) {
|
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free(c);
|
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return BadAlloc;
|
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}
|
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/*
|
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* copy the current FPE list, so that if it gets changed by another client
|
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* while we're blocking, the request still appears atomic
|
|
*/
|
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c->fpe_list = xallocarray(num_fpes, sizeof(FontPathElementPtr));
|
|
if (!c->fpe_list) {
|
|
free((void *) c->fontname);
|
|
free(c);
|
|
return BadAlloc;
|
|
}
|
|
memmove(c->fontname, pfontname, lenfname);
|
|
for (i = 0; i < num_fpes; i++) {
|
|
c->fpe_list[i] = font_path_elements[i];
|
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UseFPE(c->fpe_list[i]);
|
|
}
|
|
c->client = client;
|
|
c->fontid = fid;
|
|
c->current_fpe = 0;
|
|
c->num_fpes = num_fpes;
|
|
c->fnamelen = lenfname;
|
|
c->flags = flags;
|
|
c->non_cachable_font = cached;
|
|
|
|
(void) doOpenFont(client, c);
|
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return Success;
|
|
}
|
|
|
|
/**
|
|
* Decrement font's ref count, and free storage if ref count equals zero
|
|
*
|
|
* \param value must conform to DeleteType
|
|
*/
|
|
int
|
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CloseFont(void *value, XID fid)
|
|
{
|
|
int nscr;
|
|
ScreenPtr pscr;
|
|
FontPathElementPtr fpe;
|
|
FontPtr pfont = (FontPtr) value;
|
|
|
|
if (pfont == NullFont)
|
|
return Success;
|
|
if (--pfont->refcnt == 0) {
|
|
if (patternCache)
|
|
RemoveCachedFontPattern(patternCache, pfont);
|
|
/*
|
|
* since the last reference is gone, ask each screen to free any
|
|
* storage it may have allocated locally for it.
|
|
*/
|
|
for (nscr = 0; nscr < screenInfo.numScreens; nscr++) {
|
|
pscr = screenInfo.screens[nscr];
|
|
if (pscr->UnrealizeFont)
|
|
(*pscr->UnrealizeFont) (pscr, pfont);
|
|
}
|
|
if (pfont == defaultFont)
|
|
defaultFont = NULL;
|
|
#ifdef XF86BIGFONT
|
|
XF86BigfontFreeFontShm(pfont);
|
|
#endif
|
|
fpe = pfont->fpe;
|
|
(*fpe_functions[fpe->type].close_font) (fpe, pfont);
|
|
FreeFPE(fpe);
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
/***====================================================================***/
|
|
|
|
/**
|
|
* Sets up pReply as the correct QueryFontReply for pFont with the first
|
|
* nProtoCCIStructs char infos.
|
|
*
|
|
* \param pReply caller must allocate this storage
|
|
*/
|
|
void
|
|
QueryFont(FontPtr pFont, xQueryFontReply * pReply, int nProtoCCIStructs)
|
|
{
|
|
FontPropPtr pFP;
|
|
int r, c, i;
|
|
xFontProp *prFP;
|
|
xCharInfo *prCI;
|
|
xCharInfo *charInfos[256];
|
|
unsigned char chars[512];
|
|
int ninfos;
|
|
unsigned long ncols;
|
|
unsigned long count;
|
|
|
|
/* pr->length set in dispatch */
|
|
pReply->minCharOrByte2 = pFont->info.firstCol;
|
|
pReply->defaultChar = pFont->info.defaultCh;
|
|
pReply->maxCharOrByte2 = pFont->info.lastCol;
|
|
pReply->drawDirection = pFont->info.drawDirection;
|
|
pReply->allCharsExist = pFont->info.allExist;
|
|
pReply->minByte1 = pFont->info.firstRow;
|
|
pReply->maxByte1 = pFont->info.lastRow;
|
|
pReply->fontAscent = pFont->info.fontAscent;
|
|
pReply->fontDescent = pFont->info.fontDescent;
|
|
|
|
pReply->minBounds = pFont->info.ink_minbounds;
|
|
pReply->maxBounds = pFont->info.ink_maxbounds;
|
|
|
|
pReply->nFontProps = pFont->info.nprops;
|
|
pReply->nCharInfos = nProtoCCIStructs;
|
|
|
|
for (i = 0, pFP = pFont->info.props, prFP = (xFontProp *) (&pReply[1]);
|
|
i < pFont->info.nprops; i++, pFP++, prFP++) {
|
|
prFP->name = pFP->name;
|
|
prFP->value = pFP->value;
|
|
}
|
|
|
|
ninfos = 0;
|
|
ncols = (unsigned long) (pFont->info.lastCol - pFont->info.firstCol + 1);
|
|
prCI = (xCharInfo *) (prFP);
|
|
for (r = pFont->info.firstRow;
|
|
ninfos < nProtoCCIStructs && r <= (int) pFont->info.lastRow; r++) {
|
|
i = 0;
|
|
for (c = pFont->info.firstCol; c <= (int) pFont->info.lastCol; c++) {
|
|
chars[i++] = r;
|
|
chars[i++] = c;
|
|
}
|
|
(*pFont->get_metrics) (pFont, ncols, chars,
|
|
TwoD16Bit, &count, charInfos);
|
|
i = 0;
|
|
for (i = 0; i < (int) count && ninfos < nProtoCCIStructs; i++) {
|
|
*prCI = *charInfos[i];
|
|
prCI++;
|
|
ninfos++;
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
static Bool
|
|
doListFontsAndAliases(ClientPtr client, LFclosurePtr c)
|
|
{
|
|
FontPathElementPtr fpe;
|
|
int err = Successful;
|
|
FontNamesPtr names = NULL;
|
|
char *name, *resolved = NULL;
|
|
int namelen, resolvedlen;
|
|
int nnames;
|
|
int stringLens;
|
|
int i;
|
|
xListFontsReply reply;
|
|
char *bufptr;
|
|
char *bufferStart;
|
|
int aliascount = 0;
|
|
|
|
if (client->clientGone) {
|
|
if (c->current.current_fpe < c->num_fpes) {
|
|
fpe = c->fpe_list[c->current.current_fpe];
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
}
|
|
err = Successful;
|
|
goto bail;
|
|
}
|
|
|
|
if (!c->current.patlen)
|
|
goto finish;
|
|
|
|
while (c->current.current_fpe < c->num_fpes) {
|
|
fpe = c->fpe_list[c->current.current_fpe];
|
|
err = Successful;
|
|
|
|
if (!fpe_functions[fpe->type].start_list_fonts_and_aliases) {
|
|
/* This FPE doesn't support/require list_fonts_and_aliases */
|
|
|
|
err = (*fpe_functions[fpe->type].list_fonts)
|
|
((void *) c->client, fpe, c->current.pattern,
|
|
c->current.patlen, c->current.max_names - c->names->nnames,
|
|
c->names);
|
|
|
|
if (err == Suspended) {
|
|
if (!ClientIsAsleep(client))
|
|
ClientSleep(client,
|
|
(ClientSleepProcPtr) doListFontsAndAliases, c);
|
|
return TRUE;
|
|
}
|
|
|
|
err = BadFontName;
|
|
}
|
|
else {
|
|
/* Start of list_fonts_and_aliases functionality. Modeled
|
|
after list_fonts_with_info in that it resolves aliases,
|
|
except that the information collected from FPEs is just
|
|
names, not font info. Each list_next_font_or_alias()
|
|
returns either a name into name/namelen or an alias into
|
|
name/namelen and its target name into resolved/resolvedlen.
|
|
The code at this level then resolves the alias by polling
|
|
the FPEs. */
|
|
|
|
if (!c->current.list_started) {
|
|
err = (*fpe_functions[fpe->type].start_list_fonts_and_aliases)
|
|
((void *) c->client, fpe, c->current.pattern,
|
|
c->current.patlen, c->current.max_names - c->names->nnames,
|
|
&c->current.private);
|
|
if (err == Suspended) {
|
|
if (!ClientIsAsleep(client))
|
|
ClientSleep(client,
|
|
(ClientSleepProcPtr) doListFontsAndAliases,
|
|
c);
|
|
return TRUE;
|
|
}
|
|
if (err == Successful)
|
|
c->current.list_started = TRUE;
|
|
}
|
|
if (err == Successful) {
|
|
char *tmpname;
|
|
|
|
name = 0;
|
|
err = (*fpe_functions[fpe->type].list_next_font_or_alias)
|
|
((void *) c->client, fpe, &name, &namelen, &tmpname,
|
|
&resolvedlen, c->current.private);
|
|
if (err == Suspended) {
|
|
if (!ClientIsAsleep(client))
|
|
ClientSleep(client,
|
|
(ClientSleepProcPtr) doListFontsAndAliases,
|
|
c);
|
|
return TRUE;
|
|
}
|
|
if (err == FontNameAlias) {
|
|
free(resolved);
|
|
resolved = malloc(resolvedlen + 1);
|
|
if (resolved)
|
|
memmove(resolved, tmpname, resolvedlen + 1);
|
|
}
|
|
}
|
|
|
|
if (err == Successful) {
|
|
if (c->haveSaved) {
|
|
if (c->savedName)
|
|
(void) AddFontNamesName(c->names, c->savedName,
|
|
c->savedNameLen);
|
|
}
|
|
else
|
|
(void) AddFontNamesName(c->names, name, namelen);
|
|
}
|
|
|
|
/*
|
|
* When we get an alias back, save our state and reset back to
|
|
* the start of the FPE looking for the specified name. As
|
|
* soon as a real font is found for the alias, pop back to the
|
|
* old state
|
|
*/
|
|
else if (err == FontNameAlias) {
|
|
char tmp_pattern[XLFDMAXFONTNAMELEN];
|
|
|
|
/*
|
|
* when an alias recurses, we need to give
|
|
* the last FPE a chance to clean up; so we call
|
|
* it again, and assume that the error returned
|
|
* is BadFontName, indicating the alias resolution
|
|
* is complete.
|
|
*/
|
|
memmove(tmp_pattern, resolved, resolvedlen);
|
|
if (c->haveSaved) {
|
|
char *tmpname;
|
|
int tmpnamelen;
|
|
|
|
tmpname = 0;
|
|
(void) (*fpe_functions[fpe->type].list_next_font_or_alias)
|
|
((void *) c->client, fpe, &tmpname, &tmpnamelen,
|
|
&tmpname, &tmpnamelen, c->current.private);
|
|
if (--aliascount <= 0) {
|
|
err = BadFontName;
|
|
goto ContBadFontName;
|
|
}
|
|
}
|
|
else {
|
|
c->saved = c->current;
|
|
c->haveSaved = TRUE;
|
|
free(c->savedName);
|
|
c->savedName = malloc(namelen + 1);
|
|
if (c->savedName)
|
|
memmove(c->savedName, name, namelen + 1);
|
|
c->savedNameLen = namelen;
|
|
aliascount = 20;
|
|
}
|
|
memmove(c->current.pattern, tmp_pattern, resolvedlen);
|
|
c->current.patlen = resolvedlen;
|
|
c->current.max_names = c->names->nnames + 1;
|
|
c->current.current_fpe = -1;
|
|
c->current.private = 0;
|
|
err = BadFontName;
|
|
}
|
|
}
|
|
/*
|
|
* At the end of this FPE, step to the next. If we've finished
|
|
* processing an alias, pop state back. If we've collected enough
|
|
* font names, quit.
|
|
*/
|
|
if (err == BadFontName) {
|
|
ContBadFontName:;
|
|
c->current.list_started = FALSE;
|
|
c->current.current_fpe++;
|
|
err = Successful;
|
|
if (c->haveSaved) {
|
|
if (c->names->nnames == c->current.max_names ||
|
|
c->current.current_fpe == c->num_fpes) {
|
|
c->haveSaved = FALSE;
|
|
c->current = c->saved;
|
|
/* Give the saved namelist a chance to clean itself up */
|
|
continue;
|
|
}
|
|
}
|
|
if (c->names->nnames == c->current.max_names)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* send the reply
|
|
*/
|
|
if (err != Successful) {
|
|
SendErrorToClient(client, X_ListFonts, 0, 0, FontToXError(err));
|
|
goto bail;
|
|
}
|
|
|
|
finish:
|
|
|
|
names = c->names;
|
|
nnames = names->nnames;
|
|
client = c->client;
|
|
stringLens = 0;
|
|
for (i = 0; i < nnames; i++)
|
|
stringLens += (names->length[i] <= 255) ? names->length[i] : 0;
|
|
|
|
reply = (xListFontsReply) {
|
|
.type = X_Reply,
|
|
.length = bytes_to_int32(stringLens + nnames),
|
|
.nFonts = nnames,
|
|
.sequenceNumber = client->sequence
|
|
};
|
|
|
|
bufptr = bufferStart = malloc(reply.length << 2);
|
|
|
|
if (!bufptr && reply.length) {
|
|
SendErrorToClient(client, X_ListFonts, 0, 0, BadAlloc);
|
|
goto bail;
|
|
}
|
|
/*
|
|
* since WriteToClient long word aligns things, copy to temp buffer and
|
|
* write all at once
|
|
*/
|
|
for (i = 0; i < nnames; i++) {
|
|
if (names->length[i] > 255)
|
|
reply.nFonts--;
|
|
else {
|
|
*bufptr++ = names->length[i];
|
|
memmove(bufptr, names->names[i], names->length[i]);
|
|
bufptr += names->length[i];
|
|
}
|
|
}
|
|
nnames = reply.nFonts;
|
|
reply.length = bytes_to_int32(stringLens + nnames);
|
|
client->pSwapReplyFunc = ReplySwapVector[X_ListFonts];
|
|
WriteSwappedDataToClient(client, sizeof(xListFontsReply), &reply);
|
|
WriteToClient(client, stringLens + nnames, bufferStart);
|
|
free(bufferStart);
|
|
|
|
bail:
|
|
ClientWakeup(client);
|
|
for (i = 0; i < c->num_fpes; i++)
|
|
FreeFPE(c->fpe_list[i]);
|
|
free(c->fpe_list);
|
|
free(c->savedName);
|
|
FreeFontNames(names);
|
|
free(c);
|
|
free(resolved);
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
ListFonts(ClientPtr client, unsigned char *pattern, unsigned length,
|
|
unsigned max_names)
|
|
{
|
|
int i;
|
|
LFclosurePtr c;
|
|
|
|
/*
|
|
* The right error to return here would be BadName, however the
|
|
* specification does not allow for a Name error on this request.
|
|
* Perhaps a better solution would be to return a nil list, i.e.
|
|
* a list containing zero fontnames.
|
|
*/
|
|
if (length > XLFDMAXFONTNAMELEN)
|
|
return BadAlloc;
|
|
|
|
i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
|
|
if (i != Success)
|
|
return i;
|
|
|
|
if (!(c = malloc(sizeof *c)))
|
|
return BadAlloc;
|
|
c->fpe_list = xallocarray(num_fpes, sizeof(FontPathElementPtr));
|
|
if (!c->fpe_list) {
|
|
free(c);
|
|
return BadAlloc;
|
|
}
|
|
c->names = MakeFontNamesRecord(max_names < 100 ? max_names : 100);
|
|
if (!c->names) {
|
|
free(c->fpe_list);
|
|
free(c);
|
|
return BadAlloc;
|
|
}
|
|
memmove(c->current.pattern, pattern, length);
|
|
for (i = 0; i < num_fpes; i++) {
|
|
c->fpe_list[i] = font_path_elements[i];
|
|
UseFPE(c->fpe_list[i]);
|
|
}
|
|
c->client = client;
|
|
c->num_fpes = num_fpes;
|
|
c->current.patlen = length;
|
|
c->current.current_fpe = 0;
|
|
c->current.max_names = max_names;
|
|
c->current.list_started = FALSE;
|
|
c->current.private = 0;
|
|
c->haveSaved = FALSE;
|
|
c->savedName = 0;
|
|
doListFontsAndAliases(client, c);
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
doListFontsWithInfo(ClientPtr client, LFWIclosurePtr c)
|
|
{
|
|
FontPathElementPtr fpe;
|
|
int err = Successful;
|
|
char *name;
|
|
int namelen;
|
|
int numFonts;
|
|
FontInfoRec fontInfo, *pFontInfo;
|
|
xListFontsWithInfoReply *reply;
|
|
int length;
|
|
xFontProp *pFP;
|
|
int i;
|
|
int aliascount = 0;
|
|
xListFontsWithInfoReply finalReply;
|
|
|
|
if (client->clientGone) {
|
|
if (c->current.current_fpe < c->num_fpes) {
|
|
fpe = c->fpe_list[c->current.current_fpe];
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
}
|
|
err = Successful;
|
|
goto bail;
|
|
}
|
|
client->pSwapReplyFunc = ReplySwapVector[X_ListFontsWithInfo];
|
|
if (!c->current.patlen)
|
|
goto finish;
|
|
while (c->current.current_fpe < c->num_fpes) {
|
|
fpe = c->fpe_list[c->current.current_fpe];
|
|
err = Successful;
|
|
if (!c->current.list_started) {
|
|
err = (*fpe_functions[fpe->type].start_list_fonts_with_info)
|
|
(client, fpe, c->current.pattern, c->current.patlen,
|
|
c->current.max_names, &c->current.private);
|
|
if (err == Suspended) {
|
|
if (!ClientIsAsleep(client))
|
|
ClientSleep(client,
|
|
(ClientSleepProcPtr) doListFontsWithInfo, c);
|
|
return TRUE;
|
|
}
|
|
if (err == Successful)
|
|
c->current.list_started = TRUE;
|
|
}
|
|
if (err == Successful) {
|
|
name = 0;
|
|
pFontInfo = &fontInfo;
|
|
err = (*fpe_functions[fpe->type].list_next_font_with_info)
|
|
(client, fpe, &name, &namelen, &pFontInfo,
|
|
&numFonts, c->current.private);
|
|
if (err == Suspended) {
|
|
if (!ClientIsAsleep(client))
|
|
ClientSleep(client,
|
|
(ClientSleepProcPtr) doListFontsWithInfo, c);
|
|
return TRUE;
|
|
}
|
|
}
|
|
/*
|
|
* When we get an alias back, save our state and reset back to the
|
|
* start of the FPE looking for the specified name. As soon as a real
|
|
* font is found for the alias, pop back to the old state
|
|
*/
|
|
if (err == FontNameAlias) {
|
|
/*
|
|
* when an alias recurses, we need to give
|
|
* the last FPE a chance to clean up; so we call
|
|
* it again, and assume that the error returned
|
|
* is BadFontName, indicating the alias resolution
|
|
* is complete.
|
|
*/
|
|
if (c->haveSaved) {
|
|
char *tmpname;
|
|
int tmpnamelen;
|
|
FontInfoPtr tmpFontInfo;
|
|
|
|
tmpname = 0;
|
|
tmpFontInfo = &fontInfo;
|
|
(void) (*fpe_functions[fpe->type].list_next_font_with_info)
|
|
(client, fpe, &tmpname, &tmpnamelen, &tmpFontInfo,
|
|
&numFonts, c->current.private);
|
|
if (--aliascount <= 0) {
|
|
err = BadFontName;
|
|
goto ContBadFontName;
|
|
}
|
|
}
|
|
else {
|
|
c->saved = c->current;
|
|
c->haveSaved = TRUE;
|
|
c->savedNumFonts = numFonts;
|
|
free(c->savedName);
|
|
c->savedName = malloc(namelen + 1);
|
|
if (c->savedName)
|
|
memmove(c->savedName, name, namelen + 1);
|
|
aliascount = 20;
|
|
}
|
|
memmove(c->current.pattern, name, namelen);
|
|
c->current.patlen = namelen;
|
|
c->current.max_names = 1;
|
|
c->current.current_fpe = 0;
|
|
c->current.private = 0;
|
|
c->current.list_started = FALSE;
|
|
}
|
|
/*
|
|
* At the end of this FPE, step to the next. If we've finished
|
|
* processing an alias, pop state back. If we've sent enough font
|
|
* names, quit. Always wait for BadFontName to let the FPE
|
|
* have a chance to clean up.
|
|
*/
|
|
else if (err == BadFontName) {
|
|
ContBadFontName:;
|
|
c->current.list_started = FALSE;
|
|
c->current.current_fpe++;
|
|
err = Successful;
|
|
if (c->haveSaved) {
|
|
if (c->current.max_names == 0 ||
|
|
c->current.current_fpe == c->num_fpes) {
|
|
c->haveSaved = FALSE;
|
|
c->saved.max_names -= (1 - c->current.max_names);
|
|
c->current = c->saved;
|
|
}
|
|
}
|
|
else if (c->current.max_names == 0)
|
|
break;
|
|
}
|
|
else if (err == Successful) {
|
|
length = sizeof(*reply) + pFontInfo->nprops * sizeof(xFontProp);
|
|
reply = c->reply;
|
|
if (c->length < length) {
|
|
reply = (xListFontsWithInfoReply *) realloc(c->reply, length);
|
|
if (!reply) {
|
|
err = AllocError;
|
|
break;
|
|
}
|
|
memset((char *) reply + c->length, 0, length - c->length);
|
|
c->reply = reply;
|
|
c->length = length;
|
|
}
|
|
if (c->haveSaved) {
|
|
numFonts = c->savedNumFonts;
|
|
name = c->savedName;
|
|
namelen = strlen(name);
|
|
}
|
|
reply->type = X_Reply;
|
|
reply->length =
|
|
bytes_to_int32(sizeof *reply - sizeof(xGenericReply) +
|
|
pFontInfo->nprops * sizeof(xFontProp) + namelen);
|
|
reply->sequenceNumber = client->sequence;
|
|
reply->nameLength = namelen;
|
|
reply->minBounds = pFontInfo->ink_minbounds;
|
|
reply->maxBounds = pFontInfo->ink_maxbounds;
|
|
reply->minCharOrByte2 = pFontInfo->firstCol;
|
|
reply->maxCharOrByte2 = pFontInfo->lastCol;
|
|
reply->defaultChar = pFontInfo->defaultCh;
|
|
reply->nFontProps = pFontInfo->nprops;
|
|
reply->drawDirection = pFontInfo->drawDirection;
|
|
reply->minByte1 = pFontInfo->firstRow;
|
|
reply->maxByte1 = pFontInfo->lastRow;
|
|
reply->allCharsExist = pFontInfo->allExist;
|
|
reply->fontAscent = pFontInfo->fontAscent;
|
|
reply->fontDescent = pFontInfo->fontDescent;
|
|
reply->nReplies = numFonts;
|
|
pFP = (xFontProp *) (reply + 1);
|
|
for (i = 0; i < pFontInfo->nprops; i++) {
|
|
pFP->name = pFontInfo->props[i].name;
|
|
pFP->value = pFontInfo->props[i].value;
|
|
pFP++;
|
|
}
|
|
WriteSwappedDataToClient(client, length, reply);
|
|
WriteToClient(client, namelen, name);
|
|
if (pFontInfo == &fontInfo) {
|
|
free(fontInfo.props);
|
|
free(fontInfo.isStringProp);
|
|
}
|
|
--c->current.max_names;
|
|
}
|
|
}
|
|
finish:
|
|
length = sizeof(xListFontsWithInfoReply);
|
|
finalReply = (xListFontsWithInfoReply) {
|
|
.type = X_Reply,
|
|
.sequenceNumber = client->sequence,
|
|
.length = bytes_to_int32(sizeof(xListFontsWithInfoReply)
|
|
- sizeof(xGenericReply))
|
|
};
|
|
WriteSwappedDataToClient(client, length, &finalReply);
|
|
bail:
|
|
ClientWakeup(client);
|
|
for (i = 0; i < c->num_fpes; i++)
|
|
FreeFPE(c->fpe_list[i]);
|
|
free(c->reply);
|
|
free(c->fpe_list);
|
|
free(c->savedName);
|
|
free(c);
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
StartListFontsWithInfo(ClientPtr client, int length, unsigned char *pattern,
|
|
int max_names)
|
|
{
|
|
int i;
|
|
LFWIclosurePtr c;
|
|
|
|
/*
|
|
* The right error to return here would be BadName, however the
|
|
* specification does not allow for a Name error on this request.
|
|
* Perhaps a better solution would be to return a nil list, i.e.
|
|
* a list containing zero fontnames.
|
|
*/
|
|
if (length > XLFDMAXFONTNAMELEN)
|
|
return BadAlloc;
|
|
|
|
i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
|
|
if (i != Success)
|
|
return i;
|
|
|
|
if (!(c = malloc(sizeof *c)))
|
|
goto badAlloc;
|
|
c->fpe_list = xallocarray(num_fpes, sizeof(FontPathElementPtr));
|
|
if (!c->fpe_list) {
|
|
free(c);
|
|
goto badAlloc;
|
|
}
|
|
memmove(c->current.pattern, pattern, length);
|
|
for (i = 0; i < num_fpes; i++) {
|
|
c->fpe_list[i] = font_path_elements[i];
|
|
UseFPE(c->fpe_list[i]);
|
|
}
|
|
c->client = client;
|
|
c->num_fpes = num_fpes;
|
|
c->reply = 0;
|
|
c->length = 0;
|
|
c->current.patlen = length;
|
|
c->current.current_fpe = 0;
|
|
c->current.max_names = max_names;
|
|
c->current.list_started = FALSE;
|
|
c->current.private = 0;
|
|
c->savedNumFonts = 0;
|
|
c->haveSaved = FALSE;
|
|
c->savedName = 0;
|
|
doListFontsWithInfo(client, c);
|
|
return Success;
|
|
badAlloc:
|
|
return BadAlloc;
|
|
}
|
|
|
|
#define TextEltHeader 2
|
|
#define FontShiftSize 5
|
|
static ChangeGCVal clearGC[] = { {.ptr = NullPixmap} };
|
|
|
|
#define clearGCmask (GCClipMask)
|
|
|
|
static int
|
|
doPolyText(ClientPtr client, PTclosurePtr c)
|
|
{
|
|
FontPtr pFont = c->pGC->font, oldpFont;
|
|
int err = Success, lgerr; /* err is in X error, not font error, space */
|
|
enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT;
|
|
FontPathElementPtr fpe;
|
|
GC *origGC = NULL;
|
|
int itemSize = c->reqType == X_PolyText8 ? 1 : 2;
|
|
|
|
if (client->clientGone) {
|
|
fpe = c->pGC->font->fpe;
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
|
|
if (ClientIsAsleep(client)) {
|
|
/* Client has died, but we cannot bail out right now. We
|
|
need to clean up after the work we did when going to
|
|
sleep. Setting the drawable poiner to 0 makes this
|
|
happen without any attempts to render or perform other
|
|
unnecessary activities. */
|
|
c->pDraw = (DrawablePtr) 0;
|
|
}
|
|
else {
|
|
err = Success;
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
/* Make sure our drawable hasn't disappeared while we slept. */
|
|
if (ClientIsAsleep(client) && c->pDraw) {
|
|
DrawablePtr pDraw;
|
|
|
|
dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
|
|
if (c->pDraw != pDraw) {
|
|
/* Our drawable has disappeared. Treat like client died... ask
|
|
the FPE code to clean up after client and avoid further
|
|
rendering while we clean up after ourself. */
|
|
fpe = c->pGC->font->fpe;
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
c->pDraw = (DrawablePtr) 0;
|
|
}
|
|
}
|
|
|
|
client_state = ClientIsAsleep(client) ? SLEEPING : NEVER_SLEPT;
|
|
|
|
while (c->endReq - c->pElt > TextEltHeader) {
|
|
if (*c->pElt == FontChange) {
|
|
Font fid;
|
|
|
|
if (c->endReq - c->pElt < FontShiftSize) {
|
|
err = BadLength;
|
|
goto bail;
|
|
}
|
|
|
|
oldpFont = pFont;
|
|
|
|
fid = ((Font) *(c->pElt + 4)) /* big-endian */
|
|
|((Font) *(c->pElt + 3)) << 8
|
|
| ((Font) *(c->pElt + 2)) << 16 | ((Font) *(c->pElt + 1)) << 24;
|
|
err = dixLookupResourceByType((void **) &pFont, fid, RT_FONT,
|
|
client, DixUseAccess);
|
|
if (err != Success) {
|
|
/* restore pFont for step 4 (described below) */
|
|
pFont = oldpFont;
|
|
|
|
/* If we're in START_SLEEP mode, the following step
|
|
shortens the request... in the unlikely event that
|
|
the fid somehow becomes valid before we come through
|
|
again to actually execute the polytext, which would
|
|
then mess up our refcounting scheme badly. */
|
|
c->err = err;
|
|
c->endReq = c->pElt;
|
|
|
|
goto bail;
|
|
}
|
|
|
|
/* Step 3 (described below) on our new font */
|
|
if (client_state == START_SLEEP)
|
|
pFont->refcnt++;
|
|
else {
|
|
if (pFont != c->pGC->font && c->pDraw) {
|
|
ChangeGCVal val;
|
|
|
|
val.ptr = pFont;
|
|
ChangeGC(NullClient, c->pGC, GCFont, &val);
|
|
ValidateGC(c->pDraw, c->pGC);
|
|
}
|
|
|
|
/* Undo the refcnt++ we performed when going to sleep */
|
|
if (client_state == SLEEPING)
|
|
(void) CloseFont(c->pGC->font, (Font) 0);
|
|
}
|
|
c->pElt += FontShiftSize;
|
|
}
|
|
else { /* print a string */
|
|
|
|
unsigned char *pNextElt;
|
|
|
|
pNextElt = c->pElt + TextEltHeader + (*c->pElt) * itemSize;
|
|
if (pNextElt > c->endReq) {
|
|
err = BadLength;
|
|
goto bail;
|
|
}
|
|
if (client_state == START_SLEEP) {
|
|
c->pElt = pNextElt;
|
|
continue;
|
|
}
|
|
if (c->pDraw) {
|
|
lgerr = LoadGlyphs(client, c->pGC->font, *c->pElt, itemSize,
|
|
c->pElt + TextEltHeader);
|
|
}
|
|
else
|
|
lgerr = Successful;
|
|
|
|
if (lgerr == Suspended) {
|
|
if (!ClientIsAsleep(client)) {
|
|
int len;
|
|
GC *pGC;
|
|
PTclosurePtr new_closure;
|
|
|
|
/* We're putting the client to sleep. We need to do a few things
|
|
to ensure successful and atomic-appearing execution of the
|
|
remainder of the request. First, copy the remainder of the
|
|
request into a safe malloc'd area. Second, create a scratch GC
|
|
to use for the remainder of the request. Third, mark all fonts
|
|
referenced in the remainder of the request to prevent their
|
|
deallocation. Fourth, make the original GC look like the
|
|
request has completed... set its font to the final font value
|
|
from this request. These GC manipulations are for the unlikely
|
|
(but possible) event that some other client is using the GC.
|
|
Steps 3 and 4 are performed by running this procedure through
|
|
the remainder of the request in a special no-render mode
|
|
indicated by client_state = START_SLEEP. */
|
|
|
|
/* Step 1 */
|
|
/* Allocate a malloc'd closure structure to replace
|
|
the local one we were passed */
|
|
new_closure = malloc(sizeof(PTclosureRec));
|
|
if (!new_closure) {
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
*new_closure = *c;
|
|
|
|
len = new_closure->endReq - new_closure->pElt;
|
|
new_closure->data = malloc(len);
|
|
if (!new_closure->data) {
|
|
free(new_closure);
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
memmove(new_closure->data, new_closure->pElt, len);
|
|
new_closure->pElt = new_closure->data;
|
|
new_closure->endReq = new_closure->pElt + len;
|
|
|
|
/* Step 2 */
|
|
|
|
pGC =
|
|
GetScratchGC(new_closure->pGC->depth,
|
|
new_closure->pGC->pScreen);
|
|
if (!pGC) {
|
|
free(new_closure->data);
|
|
free(new_closure);
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
if ((err = CopyGC(new_closure->pGC, pGC, GCFunction |
|
|
GCPlaneMask | GCForeground |
|
|
GCBackground | GCFillStyle |
|
|
GCTile | GCStipple |
|
|
GCTileStipXOrigin |
|
|
GCTileStipYOrigin | GCFont |
|
|
GCSubwindowMode | GCClipXOrigin |
|
|
GCClipYOrigin | GCClipMask)) != Success) {
|
|
FreeScratchGC(pGC);
|
|
free(new_closure->data);
|
|
free(new_closure);
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
c = new_closure;
|
|
origGC = c->pGC;
|
|
c->pGC = pGC;
|
|
ValidateGC(c->pDraw, c->pGC);
|
|
|
|
ClientSleep(client, (ClientSleepProcPtr) doPolyText, c);
|
|
|
|
/* Set up to perform steps 3 and 4 */
|
|
client_state = START_SLEEP;
|
|
continue; /* on to steps 3 and 4 */
|
|
}
|
|
return TRUE;
|
|
}
|
|
else if (lgerr != Successful) {
|
|
err = FontToXError(lgerr);
|
|
goto bail;
|
|
}
|
|
if (c->pDraw) {
|
|
c->xorg += *((INT8 *) (c->pElt + 1)); /* must be signed */
|
|
if (c->reqType == X_PolyText8)
|
|
c->xorg =
|
|
(*c->pGC->ops->PolyText8) (c->pDraw, c->pGC, c->xorg,
|
|
c->yorg, *c->pElt,
|
|
(char *) (c->pElt +
|
|
TextEltHeader));
|
|
else
|
|
c->xorg =
|
|
(*c->pGC->ops->PolyText16) (c->pDraw, c->pGC, c->xorg,
|
|
c->yorg, *c->pElt,
|
|
(unsigned short *) (c->
|
|
pElt +
|
|
TextEltHeader));
|
|
}
|
|
c->pElt = pNextElt;
|
|
}
|
|
}
|
|
|
|
bail:
|
|
|
|
if (client_state == START_SLEEP) {
|
|
/* Step 4 */
|
|
if (pFont != origGC->font) {
|
|
ChangeGCVal val;
|
|
|
|
val.ptr = pFont;
|
|
ChangeGC(NullClient, origGC, GCFont, &val);
|
|
ValidateGC(c->pDraw, origGC);
|
|
}
|
|
|
|
/* restore pElt pointer for execution of remainder of the request */
|
|
c->pElt = c->data;
|
|
return TRUE;
|
|
}
|
|
|
|
if (c->err != Success)
|
|
err = c->err;
|
|
if (err != Success && c->client != serverClient) {
|
|
#ifdef PANORAMIX
|
|
if (noPanoramiXExtension || !c->pGC->pScreen->myNum)
|
|
#endif
|
|
SendErrorToClient(c->client, c->reqType, 0, 0, err);
|
|
}
|
|
if (ClientIsAsleep(client)) {
|
|
ClientWakeup(c->client);
|
|
ChangeGC(NullClient, c->pGC, clearGCmask, clearGC);
|
|
|
|
/* Unreference the font from the scratch GC */
|
|
CloseFont(c->pGC->font, (Font) 0);
|
|
c->pGC->font = NullFont;
|
|
|
|
FreeScratchGC(c->pGC);
|
|
free(c->data);
|
|
free(c);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
PolyText(ClientPtr client, DrawablePtr pDraw, GC * pGC, unsigned char *pElt,
|
|
unsigned char *endReq, int xorg, int yorg, int reqType, XID did)
|
|
{
|
|
PTclosureRec local_closure;
|
|
|
|
local_closure.pElt = pElt;
|
|
local_closure.endReq = endReq;
|
|
local_closure.client = client;
|
|
local_closure.pDraw = pDraw;
|
|
local_closure.xorg = xorg;
|
|
local_closure.yorg = yorg;
|
|
local_closure.reqType = reqType;
|
|
local_closure.pGC = pGC;
|
|
local_closure.did = did;
|
|
local_closure.err = Success;
|
|
|
|
(void) doPolyText(client, &local_closure);
|
|
return Success;
|
|
}
|
|
|
|
#undef TextEltHeader
|
|
#undef FontShiftSize
|
|
|
|
static int
|
|
doImageText(ClientPtr client, ITclosurePtr c)
|
|
{
|
|
int err = Success, lgerr; /* err is in X error, not font error, space */
|
|
FontPathElementPtr fpe;
|
|
int itemSize = c->reqType == X_ImageText8 ? 1 : 2;
|
|
|
|
if (client->clientGone) {
|
|
fpe = c->pGC->font->fpe;
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
err = Success;
|
|
goto bail;
|
|
}
|
|
|
|
/* Make sure our drawable hasn't disappeared while we slept. */
|
|
if (ClientIsAsleep(client) && c->pDraw) {
|
|
DrawablePtr pDraw;
|
|
|
|
dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
|
|
if (c->pDraw != pDraw) {
|
|
/* Our drawable has disappeared. Treat like client died... ask
|
|
the FPE code to clean up after client. */
|
|
fpe = c->pGC->font->fpe;
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
err = Success;
|
|
goto bail;
|
|
}
|
|
}
|
|
|
|
lgerr = LoadGlyphs(client, c->pGC->font, c->nChars, itemSize, c->data);
|
|
if (lgerr == Suspended) {
|
|
if (!ClientIsAsleep(client)) {
|
|
GC *pGC;
|
|
unsigned char *data;
|
|
ITclosurePtr new_closure;
|
|
ITclosurePtr old_closure;
|
|
|
|
/* We're putting the client to sleep. We need to
|
|
save some state. Similar problem to that handled
|
|
in doPolyText, but much simpler because the
|
|
request structure is much simpler. */
|
|
|
|
new_closure = malloc(sizeof(ITclosureRec));
|
|
if (!new_closure) {
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
old_closure = c;
|
|
*new_closure = *c;
|
|
c = new_closure;
|
|
|
|
data = xallocarray(c->nChars, itemSize);
|
|
if (!data) {
|
|
free(c);
|
|
c = old_closure;
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
memmove(data, c->data, c->nChars * itemSize);
|
|
c->data = data;
|
|
|
|
pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen);
|
|
if (!pGC) {
|
|
free(c->data);
|
|
free(c);
|
|
c = old_closure;
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
if ((err = CopyGC(c->pGC, pGC, GCFunction | GCPlaneMask |
|
|
GCForeground | GCBackground | GCFillStyle |
|
|
GCTile | GCStipple | GCTileStipXOrigin |
|
|
GCTileStipYOrigin | GCFont |
|
|
GCSubwindowMode | GCClipXOrigin |
|
|
GCClipYOrigin | GCClipMask)) != Success) {
|
|
FreeScratchGC(pGC);
|
|
free(c->data);
|
|
free(c);
|
|
c = old_closure;
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
c->pGC = pGC;
|
|
ValidateGC(c->pDraw, c->pGC);
|
|
|
|
ClientSleep(client, (ClientSleepProcPtr) doImageText, c);
|
|
}
|
|
return TRUE;
|
|
}
|
|
else if (lgerr != Successful) {
|
|
err = FontToXError(lgerr);
|
|
goto bail;
|
|
}
|
|
if (c->pDraw) {
|
|
if (c->reqType == X_ImageText8)
|
|
(*c->pGC->ops->ImageText8) (c->pDraw, c->pGC, c->xorg, c->yorg,
|
|
c->nChars, (char *) c->data);
|
|
else
|
|
(*c->pGC->ops->ImageText16) (c->pDraw, c->pGC, c->xorg, c->yorg,
|
|
c->nChars, (unsigned short *) c->data);
|
|
}
|
|
|
|
bail:
|
|
|
|
if (err != Success && c->client != serverClient) {
|
|
SendErrorToClient(c->client, c->reqType, 0, 0, err);
|
|
}
|
|
if (ClientIsAsleep(client)) {
|
|
ClientWakeup(c->client);
|
|
ChangeGC(NullClient, c->pGC, clearGCmask, clearGC);
|
|
|
|
/* Unreference the font from the scratch GC */
|
|
CloseFont(c->pGC->font, (Font) 0);
|
|
c->pGC->font = NullFont;
|
|
|
|
FreeScratchGC(c->pGC);
|
|
free(c->data);
|
|
free(c);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
ImageText(ClientPtr client, DrawablePtr pDraw, GC * pGC, int nChars,
|
|
unsigned char *data, int xorg, int yorg, int reqType, XID did)
|
|
{
|
|
ITclosureRec local_closure;
|
|
|
|
local_closure.client = client;
|
|
local_closure.pDraw = pDraw;
|
|
local_closure.pGC = pGC;
|
|
local_closure.nChars = nChars;
|
|
local_closure.data = data;
|
|
local_closure.xorg = xorg;
|
|
local_closure.yorg = yorg;
|
|
local_closure.reqType = reqType;
|
|
local_closure.did = did;
|
|
|
|
(void) doImageText(client, &local_closure);
|
|
return Success;
|
|
}
|
|
|
|
/* does the necessary magic to figure out the fpe type */
|
|
static int
|
|
DetermineFPEType(const char *pathname)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_fpe_types; i++) {
|
|
if ((*fpe_functions[i].name_check) (pathname))
|
|
return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
FreeFontPath(FontPathElementPtr * list, int n, Bool force)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (force) {
|
|
/* Sanity check that all refcounts will be 0 by the time
|
|
we get to the end of the list. */
|
|
int found = 1; /* the first reference is us */
|
|
int j;
|
|
|
|
for (j = i + 1; j < n; j++) {
|
|
if (list[j] == list[i])
|
|
found++;
|
|
}
|
|
if (list[i]->refcount != found) {
|
|
list[i]->refcount = found; /* ensure it will get freed */
|
|
}
|
|
}
|
|
FreeFPE(list[i]);
|
|
}
|
|
free(list);
|
|
}
|
|
|
|
static FontPathElementPtr
|
|
find_existing_fpe(FontPathElementPtr * list, int num, unsigned char *name,
|
|
int len)
|
|
{
|
|
FontPathElementPtr fpe;
|
|
int i;
|
|
|
|
for (i = 0; i < num; i++) {
|
|
fpe = list[i];
|
|
if (fpe->name_length == len && memcmp(name, fpe->name, len) == 0)
|
|
return fpe;
|
|
}
|
|
return (FontPathElementPtr) 0;
|
|
}
|
|
|
|
static int
|
|
SetFontPathElements(int npaths, unsigned char *paths, int *bad, Bool persist)
|
|
{
|
|
int i, err = 0;
|
|
int valid_paths = 0;
|
|
unsigned int len;
|
|
unsigned char *cp = paths;
|
|
FontPathElementPtr fpe = NULL, *fplist;
|
|
|
|
fplist = xallocarray(npaths, sizeof(FontPathElementPtr));
|
|
if (!fplist) {
|
|
*bad = 0;
|
|
return BadAlloc;
|
|
}
|
|
for (i = 0; i < num_fpe_types; i++) {
|
|
if (fpe_functions[i].set_path_hook)
|
|
(*fpe_functions[i].set_path_hook) ();
|
|
}
|
|
for (i = 0; i < npaths; i++) {
|
|
len = (unsigned int) (*cp++);
|
|
|
|
if (len == 0) {
|
|
if (persist)
|
|
ErrorF
|
|
("[dix] Removing empty element from the valid list of fontpaths\n");
|
|
err = BadValue;
|
|
}
|
|
else {
|
|
/* if it's already in our active list, just reset it */
|
|
/*
|
|
* note that this can miss FPE's in limbo -- may be worth catching
|
|
* them, though it'd muck up refcounting
|
|
*/
|
|
fpe = find_existing_fpe(font_path_elements, num_fpes, cp, len);
|
|
if (fpe) {
|
|
err = (*fpe_functions[fpe->type].reset_fpe) (fpe);
|
|
if (err == Successful) {
|
|
UseFPE(fpe); /* since it'll be decref'd later when freed
|
|
* from the old list */
|
|
}
|
|
else
|
|
fpe = 0;
|
|
}
|
|
/* if error or can't do it, act like it's a new one */
|
|
if (!fpe) {
|
|
char *name;
|
|
fpe = malloc(sizeof(FontPathElementRec));
|
|
if (!fpe) {
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
name = malloc(len + 1);
|
|
if (!name) {
|
|
free(fpe);
|
|
err = BadAlloc;
|
|
goto bail;
|
|
}
|
|
fpe->refcount = 1;
|
|
|
|
strncpy(name, (char *) cp, (int) len);
|
|
name[len] = '\0';
|
|
fpe->name = name;
|
|
fpe->name_length = len;
|
|
fpe->type = DetermineFPEType(fpe->name);
|
|
if (fpe->type == -1)
|
|
err = BadValue;
|
|
else
|
|
err = (*fpe_functions[fpe->type].init_fpe) (fpe);
|
|
if (err != Successful) {
|
|
if (persist) {
|
|
DebugF
|
|
("[dix] Could not init font path element %s, removing from list!\n",
|
|
fpe->name);
|
|
}
|
|
free((void *) fpe->name);
|
|
free(fpe);
|
|
}
|
|
}
|
|
}
|
|
if (err != Successful) {
|
|
if (!persist)
|
|
goto bail;
|
|
}
|
|
else {
|
|
fplist[valid_paths++] = fpe;
|
|
}
|
|
cp += len;
|
|
}
|
|
|
|
FreeFontPath(font_path_elements, num_fpes, FALSE);
|
|
font_path_elements = fplist;
|
|
if (patternCache)
|
|
EmptyFontPatternCache(patternCache);
|
|
num_fpes = valid_paths;
|
|
|
|
return Success;
|
|
bail:
|
|
*bad = i;
|
|
while (--valid_paths >= 0)
|
|
FreeFPE(fplist[valid_paths]);
|
|
free(fplist);
|
|
return FontToXError(err);
|
|
}
|
|
|
|
int
|
|
SetFontPath(ClientPtr client, int npaths, unsigned char *paths)
|
|
{
|
|
int err = XaceHook(XACE_SERVER_ACCESS, client, DixManageAccess);
|
|
|
|
if (err != Success)
|
|
return err;
|
|
|
|
if (npaths == 0) {
|
|
if (SetDefaultFontPath(defaultFontPath) != Success)
|
|
return BadValue;
|
|
}
|
|
else {
|
|
int bad;
|
|
|
|
err = SetFontPathElements(npaths, paths, &bad, FALSE);
|
|
client->errorValue = bad;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
int
|
|
SetDefaultFontPath(const char *path)
|
|
{
|
|
const char *start, *end;
|
|
char *temp_path;
|
|
unsigned char *cp, *pp, *nump, *newpath;
|
|
int num = 1, len, err, size = 0, bad;
|
|
|
|
/* ensure temp_path contains "built-ins" */
|
|
start = path;
|
|
while (1) {
|
|
start = strstr(start, "built-ins");
|
|
if (start == NULL)
|
|
break;
|
|
end = start + strlen("built-ins");
|
|
if ((start == path || start[-1] == ',') && (!*end || *end == ','))
|
|
break;
|
|
start = end;
|
|
}
|
|
if (!start) {
|
|
if (asprintf(&temp_path, "%s%sbuilt-ins", path, *path ? "," : "")
|
|
== -1)
|
|
temp_path = NULL;
|
|
}
|
|
else {
|
|
temp_path = strdup(path);
|
|
}
|
|
if (!temp_path)
|
|
return BadAlloc;
|
|
|
|
/* get enough for string, plus values -- use up commas */
|
|
len = strlen(temp_path) + 1;
|
|
nump = cp = newpath = malloc(len);
|
|
if (!newpath) {
|
|
free(temp_path);
|
|
return BadAlloc;
|
|
}
|
|
pp = (unsigned char *) temp_path;
|
|
cp++;
|
|
while (*pp) {
|
|
if (*pp == ',') {
|
|
*nump = (unsigned char) size;
|
|
nump = cp++;
|
|
pp++;
|
|
num++;
|
|
size = 0;
|
|
}
|
|
else {
|
|
*cp++ = *pp++;
|
|
size++;
|
|
}
|
|
}
|
|
*nump = (unsigned char) size;
|
|
|
|
err = SetFontPathElements(num, newpath, &bad, TRUE);
|
|
|
|
free(newpath);
|
|
free(temp_path);
|
|
|
|
return err;
|
|
}
|
|
|
|
int
|
|
GetFontPath(ClientPtr client, int *count, int *length, unsigned char **result)
|
|
{
|
|
int i;
|
|
unsigned char *c;
|
|
int len;
|
|
FontPathElementPtr fpe;
|
|
|
|
i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
|
|
if (i != Success)
|
|
return i;
|
|
|
|
len = 0;
|
|
for (i = 0; i < num_fpes; i++) {
|
|
fpe = font_path_elements[i];
|
|
len += fpe->name_length + 1;
|
|
}
|
|
c = realloc(font_path_string, len);
|
|
if (c == NULL) {
|
|
free(font_path_string);
|
|
font_path_string = NULL;
|
|
return BadAlloc;
|
|
}
|
|
|
|
font_path_string = c;
|
|
*length = 0;
|
|
for (i = 0; i < num_fpes; i++) {
|
|
fpe = font_path_elements[i];
|
|
*c = fpe->name_length;
|
|
*length += *c++;
|
|
memmove(c, fpe->name, fpe->name_length);
|
|
c += fpe->name_length;
|
|
}
|
|
*count = num_fpes;
|
|
*result = font_path_string;
|
|
return Success;
|
|
}
|
|
|
|
void
|
|
DeleteClientFontStuff(ClientPtr client)
|
|
{
|
|
int i;
|
|
FontPathElementPtr fpe;
|
|
|
|
for (i = 0; i < num_fpes; i++) {
|
|
fpe = font_path_elements[i];
|
|
if (fpe_functions[fpe->type].client_died)
|
|
(*fpe_functions[fpe->type].client_died) ((void *) client, fpe);
|
|
}
|
|
}
|
|
|
|
void
|
|
InitFonts(void)
|
|
{
|
|
patternCache = MakeFontPatternCache();
|
|
|
|
register_fpe_functions();
|
|
}
|
|
|
|
_X_EXPORT
|
|
int
|
|
GetDefaultPointSize(void)
|
|
{
|
|
return 120;
|
|
}
|
|
|
|
_X_EXPORT
|
|
FontResolutionPtr
|
|
GetClientResolutions(int *num)
|
|
{
|
|
static struct _FontResolution res;
|
|
ScreenPtr pScreen;
|
|
|
|
pScreen = screenInfo.screens[0];
|
|
res.x_resolution = (pScreen->width * 25.4) / pScreen->mmWidth;
|
|
/*
|
|
* XXX - we'll want this as long as bitmap instances are prevalent
|
|
so that we can match them from scalable fonts
|
|
*/
|
|
if (res.x_resolution < 88)
|
|
res.x_resolution = 75;
|
|
else
|
|
res.x_resolution = 100;
|
|
res.y_resolution = (pScreen->height * 25.4) / pScreen->mmHeight;
|
|
if (res.y_resolution < 88)
|
|
res.y_resolution = 75;
|
|
else
|
|
res.y_resolution = 100;
|
|
res.point_size = 120;
|
|
*num = 1;
|
|
return &res;
|
|
}
|
|
|
|
/*
|
|
* returns the type index of the new fpe
|
|
*
|
|
* should be called (only once!) by each type of fpe when initialized
|
|
*/
|
|
|
|
_X_EXPORT
|
|
int
|
|
RegisterFPEFunctions(NameCheckFunc name_func,
|
|
InitFpeFunc init_func,
|
|
FreeFpeFunc free_func,
|
|
ResetFpeFunc reset_func,
|
|
OpenFontFunc open_func,
|
|
CloseFontFunc close_func,
|
|
ListFontsFunc list_func,
|
|
StartLfwiFunc start_lfwi_func,
|
|
NextLfwiFunc next_lfwi_func,
|
|
WakeupFpeFunc wakeup_func,
|
|
ClientDiedFunc client_died,
|
|
LoadGlyphsFunc load_glyphs,
|
|
StartLaFunc start_list_alias_func,
|
|
NextLaFunc next_list_alias_func, SetPathFunc set_path_func)
|
|
{
|
|
FPEFunctions *new;
|
|
|
|
/* grow the list */
|
|
new = reallocarray(fpe_functions, num_fpe_types + 1, sizeof(FPEFunctions));
|
|
if (!new)
|
|
return -1;
|
|
fpe_functions = new;
|
|
|
|
fpe_functions[num_fpe_types].name_check = name_func;
|
|
fpe_functions[num_fpe_types].open_font = open_func;
|
|
fpe_functions[num_fpe_types].close_font = close_func;
|
|
fpe_functions[num_fpe_types].wakeup_fpe = wakeup_func;
|
|
fpe_functions[num_fpe_types].list_fonts = list_func;
|
|
fpe_functions[num_fpe_types].start_list_fonts_with_info = start_lfwi_func;
|
|
fpe_functions[num_fpe_types].list_next_font_with_info = next_lfwi_func;
|
|
fpe_functions[num_fpe_types].init_fpe = init_func;
|
|
fpe_functions[num_fpe_types].free_fpe = free_func;
|
|
fpe_functions[num_fpe_types].reset_fpe = reset_func;
|
|
fpe_functions[num_fpe_types].client_died = client_died;
|
|
fpe_functions[num_fpe_types].load_glyphs = load_glyphs;
|
|
fpe_functions[num_fpe_types].start_list_fonts_and_aliases =
|
|
start_list_alias_func;
|
|
fpe_functions[num_fpe_types].list_next_font_or_alias = next_list_alias_func;
|
|
fpe_functions[num_fpe_types].set_path_hook = set_path_func;
|
|
|
|
return num_fpe_types++;
|
|
}
|
|
|
|
void
|
|
FreeFonts(void)
|
|
{
|
|
if (patternCache) {
|
|
FreeFontPatternCache(patternCache);
|
|
patternCache = 0;
|
|
}
|
|
FreeFontPath(font_path_elements, num_fpes, TRUE);
|
|
font_path_elements = 0;
|
|
num_fpes = 0;
|
|
free(fpe_functions);
|
|
num_fpe_types = 0;
|
|
fpe_functions = (FPEFunctions *) 0;
|
|
}
|
|
|
|
/* convenience functions for FS interface */
|
|
|
|
FontPtr
|
|
find_old_font(XID id)
|
|
{
|
|
void *pFont;
|
|
|
|
dixLookupResourceByType(&pFont, id, RT_NONE, serverClient, DixReadAccess);
|
|
return (FontPtr) pFont;
|
|
}
|
|
|
|
_X_EXPORT
|
|
Font
|
|
GetNewFontClientID(void)
|
|
{
|
|
return FakeClientID(0);
|
|
}
|
|
|
|
_X_EXPORT
|
|
int
|
|
StoreFontClientFont(FontPtr pfont, Font id)
|
|
{
|
|
return AddResource(id, RT_NONE, (void *) pfont);
|
|
}
|
|
|
|
_X_EXPORT
|
|
void
|
|
DeleteFontClientID(Font id)
|
|
{
|
|
FreeResource(id, RT_NONE);
|
|
}
|
|
|
|
_X_EXPORT
|
|
int
|
|
client_auth_generation(ClientPtr client)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int fs_handlers_installed = 0;
|
|
static unsigned int last_server_gen;
|
|
|
|
_X_EXPORT
|
|
int
|
|
init_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler)
|
|
{
|
|
/* if server has reset, make sure the b&w handlers are reinstalled */
|
|
if (last_server_gen < serverGeneration) {
|
|
last_server_gen = serverGeneration;
|
|
fs_handlers_installed = 0;
|
|
}
|
|
if (fs_handlers_installed == 0) {
|
|
if (!RegisterBlockAndWakeupHandlers(block_handler,
|
|
FontWakeup, (void *) 0))
|
|
return AllocError;
|
|
fs_handlers_installed++;
|
|
}
|
|
QueueFontWakeup(fpe);
|
|
return Successful;
|
|
}
|
|
|
|
_X_EXPORT
|
|
void
|
|
remove_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler,
|
|
Bool all)
|
|
{
|
|
if (all) {
|
|
/* remove the handlers if no one else is using them */
|
|
if (--fs_handlers_installed == 0) {
|
|
RemoveBlockAndWakeupHandlers(block_handler, FontWakeup,
|
|
(void *) 0);
|
|
}
|
|
}
|
|
RemoveFontWakeup(fpe);
|
|
}
|