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authorJörg Frings-Fürst <debian@jff-webhosting.net>2014-12-02 20:17:04 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2014-12-02 20:17:04 +0100
commit7d8191b83e163d76bb05e13b373638e4eeb7da95 (patch)
treefe29c36a3cb4ef2267b2253da4dde8ce360b3cb5 /sanei/sanei_codec_bin.c
Initial import of sane-frontends version 1.0.14-9
Diffstat (limited to 'sanei/sanei_codec_bin.c')
-rw-r--r--sanei/sanei_codec_bin.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/sanei/sanei_codec_bin.c b/sanei/sanei_codec_bin.c
new file mode 100644
index 0000000..4347825
--- /dev/null
+++ b/sanei/sanei_codec_bin.c
@@ -0,0 +1,139 @@
+/* sane - Scanner Access Now Easy.
+ Copyright (C) 1997 David Mosberger-Tang
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice. */
+
+#include "sane/config.h"
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sane/sane.h>
+#include "../include/sane/sanei_wire.h"
+#include "../include/sane/sanei_codec_bin.h"
+
+static void
+bin_w_byte (Wire *w, void *v)
+{
+ SANE_Byte *b = v;
+
+ sanei_w_space (w, 1);
+ if (w->status)
+ return;
+
+ switch (w->direction)
+ {
+ case WIRE_ENCODE:
+ *w->buffer.curr++ = *b;
+ break;
+
+ case WIRE_DECODE:
+ *b = *w->buffer.curr++;
+ break;
+
+ case WIRE_FREE:
+ break;
+ }
+}
+
+static void
+bin_w_string (Wire *w, void *v)
+{
+ SANE_Word len;
+ SANE_String *s = v;
+
+ if (w->direction != WIRE_DECODE)
+ {
+ len = 0;
+ if (*s)
+ len = strlen (*s) + 1;
+ }
+ sanei_w_array (w, &len, v, w->codec.w_byte, 1);
+
+ if (w->direction == WIRE_DECODE)
+ {
+ if (len == 0)
+ *s = 0;
+ else if (w->status == 0)
+ *(*s + len - 1) = '\0';
+ }
+}
+
+static void
+bin_w_word (Wire *w, void *v)
+{
+ SANE_Word val, *word = v;
+
+ sanei_w_space (w, 4);
+ if (w->status)
+ return;
+ switch (w->direction)
+ {
+ case WIRE_ENCODE:
+ val = *word;
+ /* store in bigendian byte-order: */
+ w->buffer.curr[0] = (val >> 24) & 0xff;
+ w->buffer.curr[1] = (val >> 16) & 0xff;
+ w->buffer.curr[2] = (val >> 8) & 0xff;
+ w->buffer.curr[3] = (val >> 0) & 0xff;
+ w->buffer.curr += 4;
+ break;
+
+ case WIRE_DECODE:
+ val = ( ((w->buffer.curr[0] & 0xff) << 24)
+ | ((w->buffer.curr[1] & 0xff) << 16)
+ | ((w->buffer.curr[2] & 0xff) << 8)
+ | ((w->buffer.curr[3] & 0xff) << 0));
+ *word = val;
+ w->buffer.curr += 4;
+ break;
+
+ case WIRE_FREE:
+ break;
+ }
+}
+
+void
+sanei_codec_bin_init (Wire *w)
+{
+ w->codec.w_byte = bin_w_byte;
+ w->codec.w_char = bin_w_byte;
+ w->codec.w_word = bin_w_word;
+ w->codec.w_string = bin_w_string;
+}