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-rw-r--r--libX11/src/Font.c1461
1 files changed, 730 insertions, 731 deletions
diff --git a/libX11/src/Font.c b/libX11/src/Font.c
index b664b8dd1..857136a34 100644
--- a/libX11/src/Font.c
+++ b/libX11/src/Font.c
@@ -1,731 +1,730 @@
-/*
-
-Copyright 1986, 1998 The Open Group
-Copyright (c) 2000 The XFree86 Project, Inc.
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-X CONSORTIUM OR THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium or of the
-XFree86 Project shall not be used in advertising or otherwise to promote the
-sale, use or other dealings in this Software without prior written
-authorization from the X Consortium and the XFree86 Project.
-
-*/
-
-#define NEED_REPLIES
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include "Xlibint.h"
-
-#if defined(XF86BIGFONT) && !defined(MUSTCOPY)
-#define USE_XF86BIGFONT
-#endif
-#ifdef USE_XF86BIGFONT
-#include <sys/types.h>
-#ifdef HAS_SHM
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <X11/extensions/xf86bigfstr.h>
-#endif
-
-#include "Xlcint.h"
-#include "XlcPubI.h"
-
-
-static XFontStruct *_XQueryFont(
- Display* /* dpy */,
- Font /* fid */,
- unsigned long /* seq */
-);
-
-#ifdef USE_XF86BIGFONT
-
-/* Private data for this extension. */
-typedef struct {
- XExtCodes *codes;
- CARD32 serverSignature;
- CARD32 serverCapabilities;
-} XF86BigfontCodes;
-
-/* Additional bit masks that can be set in serverCapabilities */
-#define CAP_VerifiedLocal 256
-
-static XF86BigfontCodes *_XF86BigfontCodes(
- Display* /* dpy */
-);
-
-static XFontStruct *_XF86BigfontQueryFont(
- Display* /* dpy */,
- XF86BigfontCodes* /* extcodes */,
- Font /* fid */,
- unsigned long /* seq */
-);
-
-void _XF86BigfontFreeFontMetrics(
- XFontStruct* /* fs */
-);
-
-#endif /* USE_XF86BIGFONT */
-
-
-XFontStruct *XLoadQueryFont(
- register Display *dpy,
- _Xconst char *name)
-{
- XFontStruct *font_result;
- register long nbytes;
- Font fid;
- xOpenFontReq *req;
- unsigned long seq;
-#ifdef USE_XF86BIGFONT
- XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
-#endif
-
- if (_XF86LoadQueryLocaleFont(dpy, name, &font_result, (Font *)0))
- return font_result;
- LockDisplay(dpy);
- GetReq(OpenFont, req);
- seq = dpy->request;
- nbytes = req->nbytes = name ? strlen(name) : 0;
- req->fid = fid = XAllocID(dpy);
- req->length += (nbytes+3)>>2;
- Data (dpy, name, nbytes);
- font_result = NULL;
-#ifdef USE_XF86BIGFONT
- if (extcodes) {
- font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, seq);
- seq = 0;
- }
-#endif
- if (!font_result)
- font_result = _XQueryFont(dpy, fid, seq);
- UnlockDisplay(dpy);
- SyncHandle();
- return font_result;
-}
-
-XFontStruct *XQueryFont (
- register Display *dpy,
- Font fid)
-{
- XFontStruct *font_result;
-#ifdef USE_XF86BIGFONT
- XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
-#endif
-
- LockDisplay(dpy);
- font_result = NULL;
-#ifdef USE_XF86BIGFONT
- if (extcodes) {
- font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, 0L);
- }
-#endif
- if (!font_result)
- font_result = _XQueryFont(dpy, fid, 0L);
- UnlockDisplay(dpy);
- SyncHandle();
- return font_result;
-}
-
-int
-XFreeFont(
- register Display *dpy,
- XFontStruct *fs)
-{
- register xResourceReq *req;
- register _XExtension *ext;
-
- LockDisplay(dpy);
- /* call out to any extensions interested */
- for (ext = dpy->ext_procs; ext; ext = ext->next)
- if (ext->free_Font) (*ext->free_Font)(dpy, fs, &ext->codes);
- GetResReq (CloseFont, fs->fid, req);
- UnlockDisplay(dpy);
- SyncHandle();
- if (fs->per_char) {
-#ifdef USE_XF86BIGFONT
- _XF86BigfontFreeFontMetrics(fs);
-#else
- Xfree ((char *) fs->per_char);
-#endif
- }
- _XFreeExtData(fs->ext_data);
- if (fs->properties)
- Xfree ((char *) fs->properties);
- Xfree ((char *) fs);
- return 1;
-}
-
-
-static XFontStruct *
-_XQueryFont (
- register Display *dpy,
- Font fid,
- unsigned long seq)
-{
- register XFontStruct *fs;
- register long nbytes;
- xQueryFontReply reply;
- register xResourceReq *req;
- register _XExtension *ext;
- _XAsyncHandler async;
- _XAsyncErrorState async_state;
-
- if (seq) {
- async_state.min_sequence_number = seq;
- async_state.max_sequence_number = seq;
- async_state.error_code = BadName;
- async_state.major_opcode = X_OpenFont;
- async_state.minor_opcode = 0;
- async_state.error_count = 0;
- async.next = dpy->async_handlers;
- async.handler = _XAsyncErrorHandler;
- async.data = (XPointer)&async_state;
- dpy->async_handlers = &async;
- }
- GetResReq(QueryFont, fid, req);
- if (!_XReply (dpy, (xReply *) &reply,
- ((SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
- if (seq)
- DeqAsyncHandler(dpy, &async);
- return (XFontStruct *)NULL;
- }
- if (seq)
- DeqAsyncHandler(dpy, &async);
- if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
- _XEatData(dpy, (unsigned long)(reply.nFontProps * SIZEOF(xFontProp) +
- reply.nCharInfos * SIZEOF(xCharInfo)));
- return (XFontStruct *)NULL;
- }
- fs->ext_data = NULL;
- fs->fid = fid;
- fs->direction = reply.drawDirection;
- fs->min_char_or_byte2 = reply.minCharOrByte2;
- fs->max_char_or_byte2 = reply.maxCharOrByte2;
- fs->min_byte1 = reply.minByte1;
- fs->max_byte1 = reply.maxByte1;
- fs->default_char = reply.defaultChar;
- fs->all_chars_exist = reply.allCharsExist;
- fs->ascent = cvtINT16toInt (reply.fontAscent);
- fs->descent = cvtINT16toInt (reply.fontDescent);
-
-#ifdef MUSTCOPY
- {
- xCharInfo *xcip;
-
- xcip = (xCharInfo *) &reply.minBounds;
- fs->min_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
- fs->min_bounds.rbearing = cvtINT16toShort(xcip->rightSideBearing);
- fs->min_bounds.width = cvtINT16toShort(xcip->characterWidth);
- fs->min_bounds.ascent = cvtINT16toShort(xcip->ascent);
- fs->min_bounds.descent = cvtINT16toShort(xcip->descent);
- fs->min_bounds.attributes = xcip->attributes;
-
- xcip = (xCharInfo *) &reply.maxBounds;
- fs->max_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
- fs->max_bounds.rbearing = cvtINT16toShort(xcip->rightSideBearing);
- fs->max_bounds.width = cvtINT16toShort(xcip->characterWidth);
- fs->max_bounds.ascent = cvtINT16toShort(xcip->ascent);
- fs->max_bounds.descent = cvtINT16toShort(xcip->descent);
- fs->max_bounds.attributes = xcip->attributes;
- }
-#else
- /* XXX the next two statements won't work if short isn't 16 bits */
- fs->min_bounds = * (XCharStruct *) &reply.minBounds;
- fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
-#endif /* MUSTCOPY */
-
- fs->n_properties = reply.nFontProps;
- /*
- * if no properties defined for the font, then it is bad
- * font, but shouldn't try to read nothing.
- */
- fs->properties = NULL;
- if (fs->n_properties > 0) {
- nbytes = reply.nFontProps * sizeof(XFontProp);
- fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
- nbytes = reply.nFontProps * SIZEOF(xFontProp);
- if (! fs->properties) {
- Xfree((char *) fs);
- _XEatData(dpy, (unsigned long)
- (nbytes + reply.nCharInfos * SIZEOF(xCharInfo)));
- return (XFontStruct *)NULL;
- }
- _XRead32 (dpy, (long *)fs->properties, nbytes);
- }
- /*
- * If no characters in font, then it is a bad font, but
- * shouldn't try to read nothing.
- */
- /* have to unpack charinfos on some machines (CRAY) */
- fs->per_char = NULL;
- if (reply.nCharInfos > 0){
- nbytes = reply.nCharInfos * sizeof(XCharStruct);
- if (! (fs->per_char = (XCharStruct *) Xmalloc ((unsigned) nbytes))) {
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- _XEatData(dpy, (unsigned long)
- (reply.nCharInfos * SIZEOF(xCharInfo)));
- return (XFontStruct *)NULL;
- }
-
-#ifdef MUSTCOPY
- {
- register XCharStruct *cs = fs->per_char;
- register int i;
-
- for (i = 0; i < reply.nCharInfos; i++, cs++) {
- xCharInfo xcip;
-
- _XRead(dpy, (char *)&xcip, SIZEOF(xCharInfo));
- cs->lbearing = cvtINT16toShort(xcip.leftSideBearing);
- cs->rbearing = cvtINT16toShort(xcip.rightSideBearing);
- cs->width = cvtINT16toShort(xcip.characterWidth);
- cs->ascent = cvtINT16toShort(xcip.ascent);
- cs->descent = cvtINT16toShort(xcip.descent);
- cs->attributes = xcip.attributes;
- }
- }
-#else
- nbytes = reply.nCharInfos * SIZEOF(xCharInfo);
- _XRead16 (dpy, (char *)fs->per_char, nbytes);
-#endif
- }
-
- /* call out to any extensions interested */
- for (ext = dpy->ext_procs; ext; ext = ext->next)
- if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
- return fs;
-}
-
-#ifdef USE_XF86BIGFONT
-
-/* Magic cookie for finding the right XExtData structure on the display's
- extension list. */
-static int XF86BigfontNumber = 1040697125;
-
-static int
-_XF86BigfontFreeCodes (
- XExtData *extension)
-{
- /* Don't Xfree(extension->private_data) because it is on the same malloc
- chunk as extension. */
- /* Don't Xfree(extension->private_data->codes) because this is shared with
- the display's ext_procs list. */
- return 0;
-}
-
-static XF86BigfontCodes *
-_XF86BigfontCodes (
- register Display *dpy)
-{
- XEDataObject dpy_union;
- XExtData *pData;
- XF86BigfontCodes *pCodes;
- char *envval;
-
- dpy_union.display = dpy;
-
- /* If the server is known to support the XF86Bigfont extension,
- * return the extension codes. If the server is known to not support
- * the extension, don't bother checking again.
- */
- pData = XFindOnExtensionList(XEHeadOfExtensionList(dpy_union),
- XF86BigfontNumber);
- if (pData)
- return (XF86BigfontCodes *) pData->private_data;
-
- pData = (XExtData *) Xmalloc(sizeof(XExtData) + sizeof(XF86BigfontCodes));
- if (!pData) {
- /* Out of luck. */
- return (XF86BigfontCodes *) NULL;
- }
-
- /* See if the server supports the XF86Bigfont extension. */
- envval = getenv("XF86BIGFONT_DISABLE"); /* Let the user disable it. */
- if (envval != NULL && envval[0] != '\0')
- pCodes = NULL;
- else {
- XExtCodes *codes = XInitExtension(dpy, XF86BIGFONTNAME);
- if (codes == NULL)
- pCodes = NULL;
- else {
- pCodes = (XF86BigfontCodes *) &pData[1];
- pCodes->codes = codes;
- }
- }
- pData->number = XF86BigfontNumber;
- pData->private_data = (XPointer) pCodes;
- pData->free_private = _XF86BigfontFreeCodes;
- XAddToExtensionList(XEHeadOfExtensionList(dpy_union), pData);
- if (pCodes) {
- int result;
-
- /* See if the server supports the XF86BigfontQueryFont request. */
- xXF86BigfontQueryVersionReply reply;
- register xXF86BigfontQueryVersionReq *req;
-
- LockDisplay(dpy);
-
- GetReq(XF86BigfontQueryVersion, req);
- req->reqType = pCodes->codes->major_opcode;
- req->xf86bigfontReqType = X_XF86BigfontQueryVersion;
-
- result = _XReply (dpy, (xReply *) &reply,
- (SIZEOF(xXF86BigfontQueryVersionReply) - SIZEOF(xReply)) >> 2,
- xFalse);
-
- UnlockDisplay(dpy);
- SyncHandle();
-
- if(!result)
- goto ignore_extension;
-
- /* No need to provide backward compatibility with version 1.0. It
- was never widely distributed. */
- if (!(reply.majorVersion > 1
- || (reply.majorVersion == 1 && reply.minorVersion >= 1)))
- goto ignore_extension;
-
- pCodes->serverSignature = reply.signature;
- pCodes->serverCapabilities = reply.capabilities;
- }
- return pCodes;
-
- ignore_extension:
- /* No need to Xfree(pCodes) or Xfree(pCodes->codes), see
- _XF86BigfontFreeCodes comment. */
- pCodes = (XF86BigfontCodes *) NULL;
- pData->private_data = (XPointer) pCodes;
- return pCodes;
-}
-
-static int
-_XF86BigfontFreeNop (
- XExtData *extension)
-{
- return 0;
-}
-
-static XFontStruct *
-_XF86BigfontQueryFont (
- register Display *dpy,
- XF86BigfontCodes *extcodes,
- Font fid,
- unsigned long seq)
-{
- register XFontStruct *fs;
- register long nbytes;
- xXF86BigfontQueryFontReply reply;
- register xXF86BigfontQueryFontReq *req;
- register _XExtension *ext;
- _XAsyncHandler async1;
- _XAsyncErrorState async1_state;
- _XAsyncHandler async2;
- _XAsyncErrorState async2_state;
-
- if (seq) {
- async1_state.min_sequence_number = seq;
- async1_state.max_sequence_number = seq;
- async1_state.error_code = BadName;
- async1_state.major_opcode = X_OpenFont;
- async1_state.minor_opcode = 0;
- async1_state.error_count = 0;
- async1.next = dpy->async_handlers;
- async1.handler = _XAsyncErrorHandler;
- async1.data = (XPointer)&async1_state;
- dpy->async_handlers = &async1;
- }
-
- GetReq(XF86BigfontQueryFont, req);
- req->reqType = extcodes->codes->major_opcode;
- req->xf86bigfontReqType = X_XF86BigfontQueryFont;
- req->id = fid;
- req->flags = (extcodes->serverCapabilities & XF86Bigfont_CAP_LocalShm
- ? XF86Bigfont_FLAGS_Shm : 0);
-
- /* The function _XQueryFont benefits from a "magic" error handler for
- BadFont coming from a X_QueryFont request. (See function _XReply.)
- We have to establish an error handler ourselves. */
- async2_state.min_sequence_number = dpy->request;
- async2_state.max_sequence_number = dpy->request;
- async2_state.error_code = BadFont;
- async2_state.major_opcode = extcodes->codes->major_opcode;
- async2_state.minor_opcode = X_XF86BigfontQueryFont;
- async2_state.error_count = 0;
- async2.next = dpy->async_handlers;
- async2.handler = _XAsyncErrorHandler;
- async2.data = (XPointer)&async2_state;
- dpy->async_handlers = &async2;
-
- if (!_XReply (dpy, (xReply *) &reply,
- ((SIZEOF(xXF86BigfontQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
- DeqAsyncHandler(dpy, &async2);
- if (seq)
- DeqAsyncHandler(dpy, &async1);
- return (XFontStruct *)NULL;
- }
- DeqAsyncHandler(dpy, &async2);
- if (seq)
- DeqAsyncHandler(dpy, &async1);
- if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
- _XEatData(dpy,
- reply.nFontProps * SIZEOF(xFontProp)
- + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
- ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
- + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
- : 0));
- return (XFontStruct *)NULL;
- }
- fs->ext_data = NULL;
- fs->fid = fid;
- fs->direction = reply.drawDirection;
- fs->min_char_or_byte2 = reply.minCharOrByte2;
- fs->max_char_or_byte2 = reply.maxCharOrByte2;
- fs->min_byte1 = reply.minByte1;
- fs->max_byte1 = reply.maxByte1;
- fs->default_char = reply.defaultChar;
- fs->all_chars_exist = reply.allCharsExist;
- fs->ascent = cvtINT16toInt (reply.fontAscent);
- fs->descent = cvtINT16toInt (reply.fontDescent);
-
- /* XXX the next two statements won't work if short isn't 16 bits */
- fs->min_bounds = * (XCharStruct *) &reply.minBounds;
- fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
-
- fs->n_properties = reply.nFontProps;
- /*
- * if no properties defined for the font, then it is bad
- * font, but shouldn't try to read nothing.
- */
- fs->properties = NULL;
- if (fs->n_properties > 0) {
- nbytes = reply.nFontProps * sizeof(XFontProp);
- fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
- nbytes = reply.nFontProps * SIZEOF(xFontProp);
- if (! fs->properties) {
- Xfree((char *) fs);
- _XEatData(dpy,
- nbytes
- + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
- ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
- + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
- : 0));
- return (XFontStruct *)NULL;
- }
- _XRead32 (dpy, (long *)fs->properties, nbytes);
- }
-
- fs->per_char = NULL;
- if (reply.nCharInfos > 0) {
- /* fprintf(stderr, "received font metrics, nCharInfos = %d, nUniqCharInfos = %d, shmid = %d\n", reply.nCharInfos, reply.nUniqCharInfos, reply.shmid); */
- if (reply.shmid == (CARD32)(-1)) {
- xCharInfo* pUniqCI;
- CARD16* pIndex2UniqIndex;
- int i;
-
- nbytes = reply.nUniqCharInfos * SIZEOF(xCharInfo)
- + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16);
- pUniqCI = (xCharInfo *) Xmalloc (nbytes);
- if (!pUniqCI) {
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- _XEatData(dpy, nbytes);
- return (XFontStruct *)NULL;
- }
- if (! (fs->per_char = (XCharStruct *) Xmalloc (reply.nCharInfos * sizeof(XCharStruct)))) {
- Xfree((char *) pUniqCI);
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- _XEatData(dpy, nbytes);
- return (XFontStruct *)NULL;
- }
- _XRead16 (dpy, (char *) pUniqCI, nbytes);
- pIndex2UniqIndex = (CARD16*) (pUniqCI + reply.nUniqCharInfos);
- for (i = 0; i < reply.nCharInfos; i++) {
- if (pIndex2UniqIndex[i] >= reply.nUniqCharInfos) {
- fprintf(stderr, "_XF86BigfontQueryFont: server returned wrong data\n");
- Xfree((char *) pUniqCI);
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- return (XFontStruct *)NULL;
- }
- /* XXX the next statement won't work if short isn't 16 bits */
- fs->per_char[i] = * (XCharStruct *) &pUniqCI[pIndex2UniqIndex[i]];
- }
- Xfree((char *) pUniqCI);
- } else {
-#ifdef HAS_SHM
- XExtData *pData;
- XEDataObject fs_union;
- char *addr;
-
- pData = (XExtData *) Xmalloc(sizeof(XExtData));
- if (!pData) {
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- return (XFontStruct *)NULL;
- }
-
- /* In some cases (e.g. an ssh daemon forwarding an X session to
- a remote machine) it is possible that the X server thinks we
- are running on the same machine (because getpeername() and
- LocalClient() cannot know about the forwarding) but we are
- not really local. Therefore, when we attach the first shared
- memory segment, we verify that we are on the same machine as
- the X server by checking that 1. shmat() succeeds, 2. the
- segment has a sufficient size, 3. it contains the X server's
- signature. Then we set the CAP_VerifiedLocal bit to indicate
- the verification was successful. */
-
- if ((addr = shmat(reply.shmid, NULL, SHM_RDONLY)) == (char *)-1) {
- if (extcodes->serverCapabilities & CAP_VerifiedLocal)
- fprintf(stderr, "_XF86BigfontQueryFont: could not attach shm segment\n");
- Xfree((char *) pData);
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- /* Stop requesting shared memory transport from now on. */
- extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
- return (XFontStruct *)NULL;
- }
-
- if (!(extcodes->serverCapabilities & CAP_VerifiedLocal)) {
- struct shmid_ds buf;
- if (!(shmctl(reply.shmid, IPC_STAT, &buf) >= 0
- && buf.shm_segsz >= reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct) + sizeof(CARD32)
- && *(CARD32 *)(addr + reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct)) == extcodes->serverSignature)) {
- shmdt(addr);
- Xfree((char *) pData);
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- /* Stop requesting shared memory transport from now on. */
- extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
- return (XFontStruct *)NULL;
- }
- extcodes->serverCapabilities |= CAP_VerifiedLocal;
- }
-
- pData->number = XF86BigfontNumber;
- pData->private_data = (XPointer) addr;
- pData->free_private = _XF86BigfontFreeNop;
- fs_union.font = fs;
- XAddToExtensionList(XEHeadOfExtensionList(fs_union), pData);
-
- fs->per_char = (XCharStruct *) (addr + reply.shmsegoffset);
-#else
- fprintf(stderr, "_XF86BigfontQueryFont: try recompiling libX11 with HasShm, Xserver has shm support\n");
- if (fs->properties) Xfree((char *) fs->properties);
- Xfree((char *) fs);
- /* Stop requesting shared memory transport from now on. */
- extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
- return (XFontStruct *)NULL;
-#endif
- }
- }
-
- /* call out to any extensions interested */
- for (ext = dpy->ext_procs; ext; ext = ext->next)
- if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
- return fs;
-}
-
-void
-_XF86BigfontFreeFontMetrics (XFontStruct *fs)
-{
-#ifdef HAS_SHM
- XExtData *pData;
- XEDataObject fs_union;
-
- fs_union.font = fs;
- if ((pData = XFindOnExtensionList(XEHeadOfExtensionList(fs_union),
- XF86BigfontNumber)))
- shmdt ((char *) pData->private_data);
- else
- Xfree ((char *) fs->per_char);
-#else
- Xfree ((char *) fs->per_char);
-#endif
-}
-
-#endif /* USE_XF86BIGFONT */
-
-int _XF86LoadQueryLocaleFont(
- Display *dpy,
- _Xconst char *name,
- XFontStruct **xfp,
- Font *fidp)
-{
- int l;
- const char *charset, *p;
- char buf[256];
- XFontStruct *fs;
- XLCd lcd;
-
- if (!name)
- return 0;
- l = strlen(name);
- if (l < 2 || name[l - 1] != '*' || name[l - 2] != '-')
- return 0;
- charset = NULL;
- /* next three lines stolen from _XkbGetCharset() */
- lcd = _XlcCurrentLC();
- if ((lcd = _XlcCurrentLC()) != 0)
- charset = XLC_PUBLIC(lcd, encoding_name);
- if (!charset || (p = strrchr(charset, '-')) == 0 || p == charset || p[1] == 0 || (p[1] == '*' && p[2] == 0)) {
- /* prefer latin1 if no encoding found */
- charset = "ISO8859-1";
- p = charset + 7;
- }
- if (l - 2 - (p - charset) < 0)
- return 0;
- if (_XlcNCompareISOLatin1(name + l - 2 - (p - charset), charset, p - charset))
- return 0;
- if (strlen(p + 1) + l - 1 >= sizeof(buf) - 1)
- return 0;
- strcpy(buf, name);
- strcpy(buf + l - 1, p + 1);
- fs = XLoadQueryFont(dpy, buf);
- if (!fs)
- return 0;
- if (xfp) {
- *xfp = fs;
- if (fidp)
- *fidp = fs->fid;
- } else if (fidp) {
- if (fs->per_char) {
-#ifdef USE_XF86BIGFONT
- _XF86BigfontFreeFontMetrics(fs);
-#else
- Xfree ((char *) fs->per_char);
-#endif
- }
- _XFreeExtData(fs->ext_data);
- if (fs->properties)
- Xfree ((char *) fs->properties);
- *fidp = fs->fid;
- Xfree ((char *) fs);
- } else {
- XFreeFont(dpy, fs);
- }
- return 1;
-}
+/*
+
+Copyright 1986, 1998 The Open Group
+Copyright (c) 2000 The XFree86 Project, Inc.
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM OR THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium or of the
+XFree86 Project shall not be used in advertising or otherwise to promote the
+sale, use or other dealings in this Software without prior written
+authorization from the X Consortium and the XFree86 Project.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+
+#if defined(XF86BIGFONT) && !defined(MUSTCOPY)
+#define USE_XF86BIGFONT
+#endif
+#ifdef USE_XF86BIGFONT
+#include <sys/types.h>
+#ifdef HAS_SHM
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <X11/extensions/xf86bigfstr.h>
+#endif
+
+#include "Xlcint.h"
+#include "XlcPubI.h"
+
+
+static XFontStruct *_XQueryFont(
+ Display* /* dpy */,
+ Font /* fid */,
+ unsigned long /* seq */
+);
+
+#ifdef USE_XF86BIGFONT
+
+/* Private data for this extension. */
+typedef struct {
+ XExtCodes *codes;
+ CARD32 serverSignature;
+ CARD32 serverCapabilities;
+} XF86BigfontCodes;
+
+/* Additional bit masks that can be set in serverCapabilities */
+#define CAP_VerifiedLocal 256
+
+static XF86BigfontCodes *_XF86BigfontCodes(
+ Display* /* dpy */
+);
+
+static XFontStruct *_XF86BigfontQueryFont(
+ Display* /* dpy */,
+ XF86BigfontCodes* /* extcodes */,
+ Font /* fid */,
+ unsigned long /* seq */
+);
+
+void _XF86BigfontFreeFontMetrics(
+ XFontStruct* /* fs */
+);
+
+#endif /* USE_XF86BIGFONT */
+
+
+XFontStruct *XLoadQueryFont(
+ register Display *dpy,
+ _Xconst char *name)
+{
+ XFontStruct *font_result;
+ register long nbytes;
+ Font fid;
+ xOpenFontReq *req;
+ unsigned long seq;
+#ifdef USE_XF86BIGFONT
+ XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
+#endif
+
+ if (_XF86LoadQueryLocaleFont(dpy, name, &font_result, (Font *)0))
+ return font_result;
+ LockDisplay(dpy);
+ GetReq(OpenFont, req);
+ seq = dpy->request;
+ nbytes = req->nbytes = name ? strlen(name) : 0;
+ req->fid = fid = XAllocID(dpy);
+ req->length += (nbytes+3)>>2;
+ Data (dpy, name, nbytes);
+ font_result = NULL;
+#ifdef USE_XF86BIGFONT
+ if (extcodes) {
+ font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, seq);
+ seq = 0;
+ }
+#endif
+ if (!font_result)
+ font_result = _XQueryFont(dpy, fid, seq);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return font_result;
+}
+
+XFontStruct *XQueryFont (
+ register Display *dpy,
+ Font fid)
+{
+ XFontStruct *font_result;
+#ifdef USE_XF86BIGFONT
+ XF86BigfontCodes *extcodes = _XF86BigfontCodes(dpy);
+#endif
+
+ LockDisplay(dpy);
+ font_result = NULL;
+#ifdef USE_XF86BIGFONT
+ if (extcodes) {
+ font_result = _XF86BigfontQueryFont(dpy, extcodes, fid, 0L);
+ }
+#endif
+ if (!font_result)
+ font_result = _XQueryFont(dpy, fid, 0L);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return font_result;
+}
+
+int
+XFreeFont(
+ register Display *dpy,
+ XFontStruct *fs)
+{
+ register xResourceReq *req;
+ register _XExtension *ext;
+
+ LockDisplay(dpy);
+ /* call out to any extensions interested */
+ for (ext = dpy->ext_procs; ext; ext = ext->next)
+ if (ext->free_Font) (*ext->free_Font)(dpy, fs, &ext->codes);
+ GetResReq (CloseFont, fs->fid, req);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ if (fs->per_char) {
+#ifdef USE_XF86BIGFONT
+ _XF86BigfontFreeFontMetrics(fs);
+#else
+ Xfree ((char *) fs->per_char);
+#endif
+ }
+ _XFreeExtData(fs->ext_data);
+ if (fs->properties)
+ Xfree ((char *) fs->properties);
+ Xfree ((char *) fs);
+ return 1;
+}
+
+
+static XFontStruct *
+_XQueryFont (
+ register Display *dpy,
+ Font fid,
+ unsigned long seq)
+{
+ register XFontStruct *fs;
+ register long nbytes;
+ xQueryFontReply reply;
+ register xResourceReq *req;
+ register _XExtension *ext;
+ _XAsyncHandler async;
+ _XAsyncErrorState async_state;
+
+ if (seq) {
+ async_state.min_sequence_number = seq;
+ async_state.max_sequence_number = seq;
+ async_state.error_code = BadName;
+ async_state.major_opcode = X_OpenFont;
+ async_state.minor_opcode = 0;
+ async_state.error_count = 0;
+ async.next = dpy->async_handlers;
+ async.handler = _XAsyncErrorHandler;
+ async.data = (XPointer)&async_state;
+ dpy->async_handlers = &async;
+ }
+ GetResReq(QueryFont, fid, req);
+ if (!_XReply (dpy, (xReply *) &reply,
+ ((SIZEOF(xQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
+ if (seq)
+ DeqAsyncHandler(dpy, &async);
+ return (XFontStruct *)NULL;
+ }
+ if (seq)
+ DeqAsyncHandler(dpy, &async);
+ if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
+ _XEatData(dpy, (unsigned long)(reply.nFontProps * SIZEOF(xFontProp) +
+ reply.nCharInfos * SIZEOF(xCharInfo)));
+ return (XFontStruct *)NULL;
+ }
+ fs->ext_data = NULL;
+ fs->fid = fid;
+ fs->direction = reply.drawDirection;
+ fs->min_char_or_byte2 = reply.minCharOrByte2;
+ fs->max_char_or_byte2 = reply.maxCharOrByte2;
+ fs->min_byte1 = reply.minByte1;
+ fs->max_byte1 = reply.maxByte1;
+ fs->default_char = reply.defaultChar;
+ fs->all_chars_exist = reply.allCharsExist;
+ fs->ascent = cvtINT16toInt (reply.fontAscent);
+ fs->descent = cvtINT16toInt (reply.fontDescent);
+
+#ifdef MUSTCOPY
+ {
+ xCharInfo *xcip;
+
+ xcip = (xCharInfo *) &reply.minBounds;
+ fs->min_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
+ fs->min_bounds.rbearing = cvtINT16toShort(xcip->rightSideBearing);
+ fs->min_bounds.width = cvtINT16toShort(xcip->characterWidth);
+ fs->min_bounds.ascent = cvtINT16toShort(xcip->ascent);
+ fs->min_bounds.descent = cvtINT16toShort(xcip->descent);
+ fs->min_bounds.attributes = xcip->attributes;
+
+ xcip = (xCharInfo *) &reply.maxBounds;
+ fs->max_bounds.lbearing = cvtINT16toShort(xcip->leftSideBearing);
+ fs->max_bounds.rbearing = cvtINT16toShort(xcip->rightSideBearing);
+ fs->max_bounds.width = cvtINT16toShort(xcip->characterWidth);
+ fs->max_bounds.ascent = cvtINT16toShort(xcip->ascent);
+ fs->max_bounds.descent = cvtINT16toShort(xcip->descent);
+ fs->max_bounds.attributes = xcip->attributes;
+ }
+#else
+ /* XXX the next two statements won't work if short isn't 16 bits */
+ fs->min_bounds = * (XCharStruct *) &reply.minBounds;
+ fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
+#endif /* MUSTCOPY */
+
+ fs->n_properties = reply.nFontProps;
+ /*
+ * if no properties defined for the font, then it is bad
+ * font, but shouldn't try to read nothing.
+ */
+ fs->properties = NULL;
+ if (fs->n_properties > 0) {
+ nbytes = reply.nFontProps * sizeof(XFontProp);
+ fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
+ nbytes = reply.nFontProps * SIZEOF(xFontProp);
+ if (! fs->properties) {
+ Xfree((char *) fs);
+ _XEatData(dpy, (unsigned long)
+ (nbytes + reply.nCharInfos * SIZEOF(xCharInfo)));
+ return (XFontStruct *)NULL;
+ }
+ _XRead32 (dpy, (long *)fs->properties, nbytes);
+ }
+ /*
+ * If no characters in font, then it is a bad font, but
+ * shouldn't try to read nothing.
+ */
+ /* have to unpack charinfos on some machines (CRAY) */
+ fs->per_char = NULL;
+ if (reply.nCharInfos > 0){
+ nbytes = reply.nCharInfos * sizeof(XCharStruct);
+ if (! (fs->per_char = (XCharStruct *) Xmalloc ((unsigned) nbytes))) {
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ _XEatData(dpy, (unsigned long)
+ (reply.nCharInfos * SIZEOF(xCharInfo)));
+ return (XFontStruct *)NULL;
+ }
+
+#ifdef MUSTCOPY
+ {
+ register XCharStruct *cs = fs->per_char;
+ register int i;
+
+ for (i = 0; i < reply.nCharInfos; i++, cs++) {
+ xCharInfo xcip;
+
+ _XRead(dpy, (char *)&xcip, SIZEOF(xCharInfo));
+ cs->lbearing = cvtINT16toShort(xcip.leftSideBearing);
+ cs->rbearing = cvtINT16toShort(xcip.rightSideBearing);
+ cs->width = cvtINT16toShort(xcip.characterWidth);
+ cs->ascent = cvtINT16toShort(xcip.ascent);
+ cs->descent = cvtINT16toShort(xcip.descent);
+ cs->attributes = xcip.attributes;
+ }
+ }
+#else
+ nbytes = reply.nCharInfos * SIZEOF(xCharInfo);
+ _XRead16 (dpy, (char *)fs->per_char, nbytes);
+#endif
+ }
+
+ /* call out to any extensions interested */
+ for (ext = dpy->ext_procs; ext; ext = ext->next)
+ if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
+ return fs;
+}
+
+#ifdef USE_XF86BIGFONT
+
+/* Magic cookie for finding the right XExtData structure on the display's
+ extension list. */
+static int XF86BigfontNumber = 1040697125;
+
+static int
+_XF86BigfontFreeCodes (
+ XExtData *extension)
+{
+ /* Don't Xfree(extension->private_data) because it is on the same malloc
+ chunk as extension. */
+ /* Don't Xfree(extension->private_data->codes) because this is shared with
+ the display's ext_procs list. */
+ return 0;
+}
+
+static XF86BigfontCodes *
+_XF86BigfontCodes (
+ register Display *dpy)
+{
+ XEDataObject dpy_union;
+ XExtData *pData;
+ XF86BigfontCodes *pCodes;
+ char *envval;
+
+ dpy_union.display = dpy;
+
+ /* If the server is known to support the XF86Bigfont extension,
+ * return the extension codes. If the server is known to not support
+ * the extension, don't bother checking again.
+ */
+ pData = XFindOnExtensionList(XEHeadOfExtensionList(dpy_union),
+ XF86BigfontNumber);
+ if (pData)
+ return (XF86BigfontCodes *) pData->private_data;
+
+ pData = (XExtData *) Xmalloc(sizeof(XExtData) + sizeof(XF86BigfontCodes));
+ if (!pData) {
+ /* Out of luck. */
+ return (XF86BigfontCodes *) NULL;
+ }
+
+ /* See if the server supports the XF86Bigfont extension. */
+ envval = getenv("XF86BIGFONT_DISABLE"); /* Let the user disable it. */
+ if (envval != NULL && envval[0] != '\0')
+ pCodes = NULL;
+ else {
+ XExtCodes *codes = XInitExtension(dpy, XF86BIGFONTNAME);
+ if (codes == NULL)
+ pCodes = NULL;
+ else {
+ pCodes = (XF86BigfontCodes *) &pData[1];
+ pCodes->codes = codes;
+ }
+ }
+ pData->number = XF86BigfontNumber;
+ pData->private_data = (XPointer) pCodes;
+ pData->free_private = _XF86BigfontFreeCodes;
+ XAddToExtensionList(XEHeadOfExtensionList(dpy_union), pData);
+ if (pCodes) {
+ int result;
+
+ /* See if the server supports the XF86BigfontQueryFont request. */
+ xXF86BigfontQueryVersionReply reply;
+ register xXF86BigfontQueryVersionReq *req;
+
+ LockDisplay(dpy);
+
+ GetReq(XF86BigfontQueryVersion, req);
+ req->reqType = pCodes->codes->major_opcode;
+ req->xf86bigfontReqType = X_XF86BigfontQueryVersion;
+
+ result = _XReply (dpy, (xReply *) &reply,
+ (SIZEOF(xXF86BigfontQueryVersionReply) - SIZEOF(xReply)) >> 2,
+ xFalse);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+
+ if(!result)
+ goto ignore_extension;
+
+ /* No need to provide backward compatibility with version 1.0. It
+ was never widely distributed. */
+ if (!(reply.majorVersion > 1
+ || (reply.majorVersion == 1 && reply.minorVersion >= 1)))
+ goto ignore_extension;
+
+ pCodes->serverSignature = reply.signature;
+ pCodes->serverCapabilities = reply.capabilities;
+ }
+ return pCodes;
+
+ ignore_extension:
+ /* No need to Xfree(pCodes) or Xfree(pCodes->codes), see
+ _XF86BigfontFreeCodes comment. */
+ pCodes = (XF86BigfontCodes *) NULL;
+ pData->private_data = (XPointer) pCodes;
+ return pCodes;
+}
+
+static int
+_XF86BigfontFreeNop (
+ XExtData *extension)
+{
+ return 0;
+}
+
+static XFontStruct *
+_XF86BigfontQueryFont (
+ register Display *dpy,
+ XF86BigfontCodes *extcodes,
+ Font fid,
+ unsigned long seq)
+{
+ register XFontStruct *fs;
+ register long nbytes;
+ xXF86BigfontQueryFontReply reply;
+ register xXF86BigfontQueryFontReq *req;
+ register _XExtension *ext;
+ _XAsyncHandler async1;
+ _XAsyncErrorState async1_state;
+ _XAsyncHandler async2;
+ _XAsyncErrorState async2_state;
+
+ if (seq) {
+ async1_state.min_sequence_number = seq;
+ async1_state.max_sequence_number = seq;
+ async1_state.error_code = BadName;
+ async1_state.major_opcode = X_OpenFont;
+ async1_state.minor_opcode = 0;
+ async1_state.error_count = 0;
+ async1.next = dpy->async_handlers;
+ async1.handler = _XAsyncErrorHandler;
+ async1.data = (XPointer)&async1_state;
+ dpy->async_handlers = &async1;
+ }
+
+ GetReq(XF86BigfontQueryFont, req);
+ req->reqType = extcodes->codes->major_opcode;
+ req->xf86bigfontReqType = X_XF86BigfontQueryFont;
+ req->id = fid;
+ req->flags = (extcodes->serverCapabilities & XF86Bigfont_CAP_LocalShm
+ ? XF86Bigfont_FLAGS_Shm : 0);
+
+ /* The function _XQueryFont benefits from a "magic" error handler for
+ BadFont coming from a X_QueryFont request. (See function _XReply.)
+ We have to establish an error handler ourselves. */
+ async2_state.min_sequence_number = dpy->request;
+ async2_state.max_sequence_number = dpy->request;
+ async2_state.error_code = BadFont;
+ async2_state.major_opcode = extcodes->codes->major_opcode;
+ async2_state.minor_opcode = X_XF86BigfontQueryFont;
+ async2_state.error_count = 0;
+ async2.next = dpy->async_handlers;
+ async2.handler = _XAsyncErrorHandler;
+ async2.data = (XPointer)&async2_state;
+ dpy->async_handlers = &async2;
+
+ if (!_XReply (dpy, (xReply *) &reply,
+ ((SIZEOF(xXF86BigfontQueryFontReply) - SIZEOF(xReply)) >> 2), xFalse)) {
+ DeqAsyncHandler(dpy, &async2);
+ if (seq)
+ DeqAsyncHandler(dpy, &async1);
+ return (XFontStruct *)NULL;
+ }
+ DeqAsyncHandler(dpy, &async2);
+ if (seq)
+ DeqAsyncHandler(dpy, &async1);
+ if (! (fs = (XFontStruct *) Xmalloc (sizeof (XFontStruct)))) {
+ _XEatData(dpy,
+ reply.nFontProps * SIZEOF(xFontProp)
+ + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
+ ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
+ + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
+ : 0));
+ return (XFontStruct *)NULL;
+ }
+ fs->ext_data = NULL;
+ fs->fid = fid;
+ fs->direction = reply.drawDirection;
+ fs->min_char_or_byte2 = reply.minCharOrByte2;
+ fs->max_char_or_byte2 = reply.maxCharOrByte2;
+ fs->min_byte1 = reply.minByte1;
+ fs->max_byte1 = reply.maxByte1;
+ fs->default_char = reply.defaultChar;
+ fs->all_chars_exist = reply.allCharsExist;
+ fs->ascent = cvtINT16toInt (reply.fontAscent);
+ fs->descent = cvtINT16toInt (reply.fontDescent);
+
+ /* XXX the next two statements won't work if short isn't 16 bits */
+ fs->min_bounds = * (XCharStruct *) &reply.minBounds;
+ fs->max_bounds = * (XCharStruct *) &reply.maxBounds;
+
+ fs->n_properties = reply.nFontProps;
+ /*
+ * if no properties defined for the font, then it is bad
+ * font, but shouldn't try to read nothing.
+ */
+ fs->properties = NULL;
+ if (fs->n_properties > 0) {
+ nbytes = reply.nFontProps * sizeof(XFontProp);
+ fs->properties = (XFontProp *) Xmalloc ((unsigned) nbytes);
+ nbytes = reply.nFontProps * SIZEOF(xFontProp);
+ if (! fs->properties) {
+ Xfree((char *) fs);
+ _XEatData(dpy,
+ nbytes
+ + (reply.nCharInfos > 0 && reply.shmid == (CARD32)(-1)
+ ? reply.nUniqCharInfos * SIZEOF(xCharInfo)
+ + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16)
+ : 0));
+ return (XFontStruct *)NULL;
+ }
+ _XRead32 (dpy, (long *)fs->properties, nbytes);
+ }
+
+ fs->per_char = NULL;
+ if (reply.nCharInfos > 0) {
+ /* fprintf(stderr, "received font metrics, nCharInfos = %d, nUniqCharInfos = %d, shmid = %d\n", reply.nCharInfos, reply.nUniqCharInfos, reply.shmid); */
+ if (reply.shmid == (CARD32)(-1)) {
+ xCharInfo* pUniqCI;
+ CARD16* pIndex2UniqIndex;
+ int i;
+
+ nbytes = reply.nUniqCharInfos * SIZEOF(xCharInfo)
+ + (reply.nCharInfos+1)/2 * 2 * sizeof(CARD16);
+ pUniqCI = (xCharInfo *) Xmalloc (nbytes);
+ if (!pUniqCI) {
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ _XEatData(dpy, nbytes);
+ return (XFontStruct *)NULL;
+ }
+ if (! (fs->per_char = (XCharStruct *) Xmalloc (reply.nCharInfos * sizeof(XCharStruct)))) {
+ Xfree((char *) pUniqCI);
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ _XEatData(dpy, nbytes);
+ return (XFontStruct *)NULL;
+ }
+ _XRead16 (dpy, (char *) pUniqCI, nbytes);
+ pIndex2UniqIndex = (CARD16*) (pUniqCI + reply.nUniqCharInfos);
+ for (i = 0; i < reply.nCharInfos; i++) {
+ if (pIndex2UniqIndex[i] >= reply.nUniqCharInfos) {
+ fprintf(stderr, "_XF86BigfontQueryFont: server returned wrong data\n");
+ Xfree((char *) pUniqCI);
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ return (XFontStruct *)NULL;
+ }
+ /* XXX the next statement won't work if short isn't 16 bits */
+ fs->per_char[i] = * (XCharStruct *) &pUniqCI[pIndex2UniqIndex[i]];
+ }
+ Xfree((char *) pUniqCI);
+ } else {
+#ifdef HAS_SHM
+ XExtData *pData;
+ XEDataObject fs_union;
+ char *addr;
+
+ pData = (XExtData *) Xmalloc(sizeof(XExtData));
+ if (!pData) {
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ return (XFontStruct *)NULL;
+ }
+
+ /* In some cases (e.g. an ssh daemon forwarding an X session to
+ a remote machine) it is possible that the X server thinks we
+ are running on the same machine (because getpeername() and
+ LocalClient() cannot know about the forwarding) but we are
+ not really local. Therefore, when we attach the first shared
+ memory segment, we verify that we are on the same machine as
+ the X server by checking that 1. shmat() succeeds, 2. the
+ segment has a sufficient size, 3. it contains the X server's
+ signature. Then we set the CAP_VerifiedLocal bit to indicate
+ the verification was successful. */
+
+ if ((addr = shmat(reply.shmid, NULL, SHM_RDONLY)) == (char *)-1) {
+ if (extcodes->serverCapabilities & CAP_VerifiedLocal)
+ fprintf(stderr, "_XF86BigfontQueryFont: could not attach shm segment\n");
+ Xfree((char *) pData);
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ /* Stop requesting shared memory transport from now on. */
+ extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+ return (XFontStruct *)NULL;
+ }
+
+ if (!(extcodes->serverCapabilities & CAP_VerifiedLocal)) {
+ struct shmid_ds buf;
+ if (!(shmctl(reply.shmid, IPC_STAT, &buf) >= 0
+ && buf.shm_segsz >= reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct) + sizeof(CARD32)
+ && *(CARD32 *)(addr + reply.shmsegoffset + reply.nCharInfos * sizeof(XCharStruct)) == extcodes->serverSignature)) {
+ shmdt(addr);
+ Xfree((char *) pData);
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ /* Stop requesting shared memory transport from now on. */
+ extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+ return (XFontStruct *)NULL;
+ }
+ extcodes->serverCapabilities |= CAP_VerifiedLocal;
+ }
+
+ pData->number = XF86BigfontNumber;
+ pData->private_data = (XPointer) addr;
+ pData->free_private = _XF86BigfontFreeNop;
+ fs_union.font = fs;
+ XAddToExtensionList(XEHeadOfExtensionList(fs_union), pData);
+
+ fs->per_char = (XCharStruct *) (addr + reply.shmsegoffset);
+#else
+ fprintf(stderr, "_XF86BigfontQueryFont: try recompiling libX11 with HasShm, Xserver has shm support\n");
+ if (fs->properties) Xfree((char *) fs->properties);
+ Xfree((char *) fs);
+ /* Stop requesting shared memory transport from now on. */
+ extcodes->serverCapabilities &= ~ XF86Bigfont_CAP_LocalShm;
+ return (XFontStruct *)NULL;
+#endif
+ }
+ }
+
+ /* call out to any extensions interested */
+ for (ext = dpy->ext_procs; ext; ext = ext->next)
+ if (ext->create_Font) (*ext->create_Font)(dpy, fs, &ext->codes);
+ return fs;
+}
+
+void
+_XF86BigfontFreeFontMetrics (XFontStruct *fs)
+{
+#ifdef HAS_SHM
+ XExtData *pData;
+ XEDataObject fs_union;
+
+ fs_union.font = fs;
+ if ((pData = XFindOnExtensionList(XEHeadOfExtensionList(fs_union),
+ XF86BigfontNumber)))
+ shmdt ((char *) pData->private_data);
+ else
+ Xfree ((char *) fs->per_char);
+#else
+ Xfree ((char *) fs->per_char);
+#endif
+}
+
+#endif /* USE_XF86BIGFONT */
+
+int _XF86LoadQueryLocaleFont(
+ Display *dpy,
+ _Xconst char *name,
+ XFontStruct **xfp,
+ Font *fidp)
+{
+ int l;
+ const char *charset, *p;
+ char buf[256];
+ XFontStruct *fs;
+ XLCd lcd;
+
+ if (!name)
+ return 0;
+ l = strlen(name);
+ if (l < 2 || name[l - 1] != '*' || name[l - 2] != '-')
+ return 0;
+ charset = NULL;
+ /* next three lines stolen from _XkbGetCharset() */
+ lcd = _XlcCurrentLC();
+ if ((lcd = _XlcCurrentLC()) != 0)
+ charset = XLC_PUBLIC(lcd, encoding_name);
+ if (!charset || (p = strrchr(charset, '-')) == 0 || p == charset || p[1] == 0 || (p[1] == '*' && p[2] == 0)) {
+ /* prefer latin1 if no encoding found */
+ charset = "ISO8859-1";
+ p = charset + 7;
+ }
+ if (l - 2 - (p - charset) < 0)
+ return 0;
+ if (_XlcNCompareISOLatin1(name + l - 2 - (p - charset), charset, p - charset))
+ return 0;
+ if (strlen(p + 1) + l - 1 >= sizeof(buf) - 1)
+ return 0;
+ strcpy(buf, name);
+ strcpy(buf + l - 1, p + 1);
+ fs = XLoadQueryFont(dpy, buf);
+ if (!fs)
+ return 0;
+ if (xfp) {
+ *xfp = fs;
+ if (fidp)
+ *fidp = fs->fid;
+ } else if (fidp) {
+ if (fs->per_char) {
+#ifdef USE_XF86BIGFONT
+ _XF86BigfontFreeFontMetrics(fs);
+#else
+ Xfree ((char *) fs->per_char);
+#endif
+ }
+ _XFreeExtData(fs->ext_data);
+ if (fs->properties)
+ Xfree ((char *) fs->properties);
+ *fidp = fs->fid;
+ Xfree ((char *) fs);
+ } else {
+ XFreeFont(dpy, fs);
+ }
+ return 1;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 17:03:23 +0000