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+/* $Xorg: bitsource.c,v 1.4 2001/02/09 02:04:03 xorgcvs Exp $ */
+
+/*
+
+Copyright 1991, 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.
+
+*/
+/* $XFree86: xc/lib/font/fontfile/bitsource.c,v 1.3 2001/01/17 19:43:29 dawes Exp $ */
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/fonts/fntfilst.h>
+
+BitmapSourcesRec FontFileBitmapSources;
+
+Bool
+FontFileRegisterBitmapSource (FontPathElementPtr fpe)
+{
+ FontPathElementPtr *new;
+ int i;
+ int newsize;
+
+ for (i = 0; i < FontFileBitmapSources.count; i++)
+ if (FontFileBitmapSources.fpe[i] == fpe)
+ return TRUE;
+ if (FontFileBitmapSources.count == FontFileBitmapSources.size)
+ {
+ newsize = FontFileBitmapSources.size + 4;
+ new = (FontPathElementPtr *) xrealloc (FontFileBitmapSources.fpe, newsize * sizeof *new);
+ if (!new)
+ return FALSE;
+ FontFileBitmapSources.size = newsize;
+ FontFileBitmapSources.fpe = new;
+ }
+ FontFileBitmapSources.fpe[FontFileBitmapSources.count++] = fpe;
+ return TRUE;
+}
+
+void
+FontFileUnregisterBitmapSource (FontPathElementPtr fpe)
+{
+ int i;
+
+ for (i = 0; i < FontFileBitmapSources.count; i++)
+ if (FontFileBitmapSources.fpe[i] == fpe)
+ {
+ FontFileBitmapSources.count--;
+ if (FontFileBitmapSources.count == 0)
+ {
+ FontFileBitmapSources.size = 0;
+ xfree (FontFileBitmapSources.fpe);
+ FontFileBitmapSources.fpe = 0;
+ }
+ else
+ {
+ for (; i < FontFileBitmapSources.count; i++)
+ FontFileBitmapSources.fpe[i] = FontFileBitmapSources.fpe[i+1];
+ }
+ break;
+ }
+}
+
+/*
+ * Our set_path_hook: unregister all bitmap sources.
+ * This is necessary because already open fonts will keep their FPEs
+ * allocated, but they may not be on the new font path.
+ * The bitmap sources in the new path will be registered by the init_func.
+ */
+void
+FontFileEmptyBitmapSource(void)
+{
+ if (FontFileBitmapSources.count == 0)
+ return;
+
+ FontFileBitmapSources.count = 0;
+ FontFileBitmapSources.size = 0;
+ xfree (FontFileBitmapSources.fpe);
+ FontFileBitmapSources.fpe = 0;
+}
+
+int
+FontFileMatchBitmapSource (FontPathElementPtr fpe,
+ FontPtr *pFont,
+ int flags,
+ FontEntryPtr entry,
+ FontNamePtr zeroPat,
+ FontScalablePtr vals,
+ fsBitmapFormat format,
+ fsBitmapFormatMask fmask,
+ Bool noSpecificSize)
+{
+ int source;
+ FontEntryPtr zero;
+ FontBitmapEntryPtr bitmap;
+ int ret;
+ FontDirectoryPtr dir;
+ FontScaledPtr scaled;
+
+ /*
+ * Look through all the registered bitmap sources for
+ * the same zero name as ours; entries along that one
+ * can be scaled as desired.
+ */
+ ret = BadFontName;
+ for (source = 0; source < FontFileBitmapSources.count; source++)
+ {
+ if (FontFileBitmapSources.fpe[source] == fpe)
+ continue;
+ dir = (FontDirectoryPtr) FontFileBitmapSources.fpe[source]->private;
+ zero = FontFileFindNameInDir (&dir->scalable, zeroPat);
+ if (!zero)
+ continue;
+ scaled = FontFileFindScaledInstance (zero, vals, noSpecificSize);
+ if (scaled)
+ {
+ if (scaled->pFont)
+ {
+ *pFont = scaled->pFont;
+ (*pFont)->fpe = FontFileBitmapSources.fpe[source];
+ ret = Successful;
+ }
+ else if (scaled->bitmap)
+ {
+ entry = scaled->bitmap;
+ bitmap = &entry->u.bitmap;
+ if (bitmap->pFont)
+ {
+ *pFont = bitmap->pFont;
+ (*pFont)->fpe = FontFileBitmapSources.fpe[source];
+ ret = Successful;
+ }
+ else
+ {
+ ret = FontFileOpenBitmap (
+ FontFileBitmapSources.fpe[source],
+ pFont, flags, entry, format, fmask);
+ if (ret == Successful && *pFont)
+ (*pFont)->fpe = FontFileBitmapSources.fpe[source];
+ }
+ }
+ else /* "cannot" happen */
+ {
+ ret = BadFontName;
+ }
+ break;
+ }
+ }
+ return ret;
+}