1 files changed, 117 insertions, 0 deletions
diff --git a/libXfont/src/fontfile/renderers.c b/libXfont/src/fontfile/renderers.c
new file mode 100644
index 000000000..f110ba817
--- /dev/null
+++ b/libXfont/src/fontfile/renderers.c
@@ -0,0 +1,117 @@
+/* $Xorg: renderers.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/renderers.c,v 1.7 2002/12/09 17:30:00 dawes Exp $ */
+
+/*
+ * Author:  Keith Packard, MIT X Consortium
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/fonts/fntfilst.h>
+extern void ErrorF(const char *f, ...);
+
+static FontRenderersRec	renderers;
+
+/*
+ * XXX Maybe should allow unregistering renders. For now, just clear the
+ * list at each new generation.
+ */
+extern unsigned long serverGeneration;
+static unsigned long rendererGeneration = 0;
+
+Bool
+FontFileRegisterRenderer (FontRendererPtr renderer)
+{
+    return FontFilePriorityRegisterRenderer(renderer, 0);
+}
+
+Bool
+FontFilePriorityRegisterRenderer (FontRendererPtr renderer, int priority)
+{
+    int		    i;
+    struct _FontRenderersElement *new;
+
+    if (rendererGeneration != serverGeneration) {
+	rendererGeneration = serverGeneration;
+	renderers.number = 0;
+	if (renderers.renderers)
+	   xfree(renderers.renderers);
+	renderers.renderers = NULL;
+    }
+
+    for (i = 0; i < renderers.number; i++) {
+	if (!strcmp (renderers.renderers[i].renderer->fileSuffix, 
+                     renderer->fileSuffix)) {
+            if(renderers.renderers[i].priority >= priority) {
+                if(renderers.renderers[i].priority == priority) {
+                    if (rendererGeneration == 1)
+                        ErrorF("Warning: font renderer for \"%s\" "
+                               "already registered at priority %d\n",
+                               renderer->fileSuffix, priority);
+                }
+                return TRUE;
+            } else {
+                break;
+            }
+        }
+    }
+
+    if(i >= renderers.number) {
+        new = xrealloc (renderers.renderers, sizeof(*new) * (i + 1));
+        if (!new)
+            return FALSE;
+        renderers.renderers = new;
+        renderers.number = i + 1;
+    }
+    renderer->number = i;
+    renderers.renderers[i].renderer = renderer;
+    renderers.renderers[i].priority = priority;
+    return TRUE;
+}
+
+FontRendererPtr
+FontFileMatchRenderer (char *fileName)
+{
+    int			i;
+    int			fileLen;
+    FontRendererPtr	r;
+    
+    fileLen = strlen (fileName);
+    for (i = 0; i < renderers.number; i++)
+    {
+	r = renderers.renderers[i].renderer;
+	if (fileLen >= r->fileSuffixLen &&
+	    !strcmp (fileName + fileLen - r->fileSuffixLen, r->fileSuffix))
+	{
+	    return r;
+	}
+    }
+    return 0;
+}