R6.6 is the Xorg base-lineXORG-MAIN

1 files changed, 173 insertions, 0 deletions

diff --git a/src/fontfile/bitsource.c b/src/fontfile/bitsource.c
new file mode 100644
index 0000000..ac77875
--- /dev/null
+++ b/src/fontfile/bitsource.c
@@ -0,0 +1,173 @@
+/* $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.
+
+*/
+
+/*
+ * Author:  Keith Packard, MIT X Consortium
+ */
+
+#include "fntfilst.h"
+
+BitmapSourcesRec	FontFileBitmapSources;
+
+Bool
+FontFileRegisterBitmapSource (fpe)
+    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 (fpe)
+    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()
+{
+    if (FontFileBitmapSources.count == 0)
+	return;
+
+    FontFileBitmapSources.count = 0;
+    FontFileBitmapSources.size = 0;
+    xfree (FontFileBitmapSources.fpe);
+    FontFileBitmapSources.fpe = 0;
+}
+
+int
+FontFileMatchBitmapSource (fpe, pFont, flags, entry, zeroPat, vals, format, fmask, noSpecificSize)
+    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;
+}