1 files changed, 133 insertions, 0 deletions
diff --git a/libXfont/src/builtins/file.c b/libXfont/src/builtins/file.c
new file mode 100644
index 000000000..a46b0a65e
--- /dev/null
+++ b/libXfont/src/builtins/file.c
@@ -0,0 +1,133 @@
+/*
+ * Id: file.c,v 1.2 1999/11/02 06:16:47 keithp Exp $
+ *
+ * Copyright 1999 SuSE, 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, and that the name of SuSE not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  SuSE makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
+ * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author:  Keith Packard, SuSE, Inc.
+ */
+/* $XFree86: xc/lib/font/builtins/file.c,v 1.3 1999/12/30 02:29:49 robin Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <string.h>
+#include "builtin.h"
+
+typedef struct _BuiltinIO {
+    int		    offset;
+    BuiltinFilePtr  file;
+} BuiltinIORec, *BuiltinIOPtr;
+
+static int
+BuiltinFill (BufFilePtr	f)
+{
+    int	    left, len;
+    BuiltinIOPtr    io = ((BuiltinIOPtr) f->private);
+
+    left = io->file->len - io->offset;
+    if (left <= 0)
+    {
+	f->left = 0;
+	return BUFFILEEOF;
+    }
+    len = BUFFILESIZE;
+    if (len > left)
+	len = left;
+    memcpy (f->buffer, io->file->bits + io->offset, len);
+    io->offset += len;
+    f->left = len - 1;
+    f->bufp = f->buffer + 1;
+    return f->buffer[0];
+}
+
+static int
+BuiltinSkip (BufFilePtr	f, int count)
+{
+    BuiltinIOPtr    io = ((BuiltinIOPtr) f->private);
+    int	    curoff;
+    int	    fileoff;
+    int	    todo;
+
+    curoff = f->bufp - f->buffer;
+    fileoff = curoff + f->left;
+    if (curoff + count <= fileoff) {
+	f->bufp += count;
+	f->left -= count;
+    } else {
+	todo = count - (fileoff - curoff);
+	io->offset += todo;
+	if (io->offset > io->file->len)
+	    io->offset = io->file->len;
+	if (io->offset < 0)
+	    io->offset = 0;
+	f->left = 0;
+    }
+    return count;
+}
+
+static int
+BuiltinClose (BufFilePtr f, int unused)
+{
+    BuiltinIOPtr    io = ((BuiltinIOPtr) f->private);
+    
+    xfree (io);
+    return 1;
+}
+
+
+FontFilePtr
+BuiltinFileOpen (char *name)
+{
+    int		    i;
+    BuiltinIOPtr    io;
+    BufFilePtr	    raw, cooked;
+
+    if (*name == '/') name++;
+    for (i = 0; i < builtin_files_count; i++)
+	if (!strcmp (name, builtin_files[i].name))
+	    break;
+    if (i == builtin_files_count)
+	return NULL;
+    io = (BuiltinIOPtr) xalloc (sizeof (BuiltinIORec));
+    if (!io)
+	return NULL;
+    io->offset = 0;
+    io->file = (void *) &builtin_files[i];
+    raw = BufFileCreate ((char *) io, BuiltinFill, 0, BuiltinSkip, BuiltinClose);
+    if (!raw)
+    {
+	xfree (io);
+	return NULL;
+    }
+    if ((cooked = BufFilePushZIP (raw)))
+	raw = cooked;
+    else
+    {
+	raw->left += raw->bufp - raw->buffer;
+	raw->bufp = raw->buffer;
+    }
+    return (FontFilePtr) raw;
+}
+
+int
+BuiltinFileClose (FontFilePtr f, int unused)
+{
+    return BufFileClose ((BufFilePtr) f, TRUE);
+}