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authorKaleb Keithley <kaleb@freedesktop.org>2003-11-14 15:54:30 +0000
committerKaleb Keithley <kaleb@freedesktop.org>2003-11-14 15:54:30 +0000
commitdeae12c6b683898f5213992d561a59d4ea889cca (patch)
tree3ed14c7b76f47ec80c1868c34bd0e5de385db618 /src/Font.c
R6.6 is the Xorg base-lineXORG-MAIN
Diffstat (limited to 'src/Font.c')
-rw-r--r--src/Font.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/src/Font.c b/src/Font.c
new file mode 100644
index 00000000..2b1eae84
--- /dev/null
+++ b/src/Font.c
@@ -0,0 +1,241 @@
+/* $Xorg: Font.c,v 1.4 2001/02/09 02:03:33 xorgcvs Exp $ */
+/*
+
+Copyright 1986, 1998 The Open Group
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+
+*/
+
+#define NEED_REPLIES
+#include "Xlibint.h"
+
+static XFontStruct *_XQueryFont();
+
+#if NeedFunctionPrototypes
+XFontStruct *XLoadQueryFont(
+ register Display *dpy,
+ _Xconst char *name)
+#else
+XFontStruct *XLoadQueryFont(dpy, name)
+ register Display *dpy;
+ char *name;
+#endif
+{
+ XFontStruct *font_result;
+ register long nbytes;
+ Font fid;
+ xOpenFontReq *req;
+ unsigned long seq;
+
+ 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 = _XQueryFont(dpy, fid, seq);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return font_result;
+}
+
+XFreeFont(dpy, fs)
+ 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();
+ _XFreeExtData(fs->ext_data);
+ if (fs->per_char)
+ Xfree ((char *) fs->per_char);
+ if (fs->properties)
+ Xfree ((char *) fs->properties);
+ Xfree ((char *) fs);
+ return 1;
+}
+
+static XFontStruct *
+_XQueryFont (dpy, fid, seq)
+ 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, (char *)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;
+}
+
+
+XFontStruct *XQueryFont (dpy, fid)
+ register Display *dpy;
+ Font fid;
+{
+ XFontStruct *font_result;
+
+ LockDisplay(dpy);
+ font_result = _XQueryFont(dpy, fid, 0L);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return font_result;
+}
+
+
+