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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:42 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:13:42 +0100
commit3dade5db2a37543f19f0967901d8d80a52a1e459 (patch)
tree808b2499b54563b3290f34d70d159b1024310873 /backend/escl/escl_tiff.c
parent5bb4cf12855ec0151de15d6c5a2354ff08766957 (diff)
parentffa8801644a7d53cc1c785e3450f794c07a14eb0 (diff)
Update upstream source from tag 'upstream/1.0.29'
Update to upstream version '1.0.29' with Debian dir 2d358af604988ebe4348e38096245d66036fe5ed
Diffstat (limited to 'backend/escl/escl_tiff.c')
-rw-r--r--backend/escl/escl_tiff.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/backend/escl/escl_tiff.c b/backend/escl/escl_tiff.c
new file mode 100644
index 0000000..52aec20
--- /dev/null
+++ b/backend/escl/escl_tiff.c
@@ -0,0 +1,119 @@
+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2019 Touboul Nathane
+ Copyright (C) 2019 Thierry HUCHARD <thierry@ordissimo.com>
+
+ This file is part of the SANE package.
+
+ SANE 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 3 of the License, or (at your
+ option) any later version.
+
+ SANE 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 sane; see the file COPYING. If not, write to the Free
+ Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ This file implements a SANE backend for eSCL scanners. */
+
+#define DEBUG_DECLARE_ONLY
+#include "../include/sane/config.h"
+
+#include "escl.h"
+
+#include "../include/sane/sanei.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#if(defined HAVE_TIFFIO_H)
+#include <tiffio.h>
+#endif
+
+#include <setjmp.h>
+
+
+#if(defined HAVE_TIFFIO_H)
+
+/**
+ * \fn SANE_Status escl_sane_decompressor(escl_sane_t *handler)
+ * \brief Function that aims to decompress the png image to SANE be able to read the image.
+ * This function is called in the "sane_read" function.
+ *
+ * \return SANE_STATUS_GOOD (if everything is OK, otherwise, SANE_STATUS_NO_MEM/SANE_STATUS_INVAL)
+ */
+SANE_Status
+get_TIFF_data(capabilities_t *scanner, int *w, int *h, int *components)
+{
+ TIFF* tif = NULL;
+ uint32 width = 0; /* largeur */
+ uint32 height = 0; /* hauteur */
+ unsigned char *raster = NULL; /* données de l'image */
+ int bps = 4;
+ uint32 npixels = 0;
+
+ lseek(fileno(scanner->tmp), 0, SEEK_SET);
+ tif = TIFFFdOpen(fileno(scanner->tmp), "temp", "r");
+ if (!tif) {
+ DBG( 1, "Escl Tiff : Can not open, or not a TIFF file.\n");
+ if (scanner->tmp) {
+ fclose(scanner->tmp);
+ scanner->tmp = NULL;
+ }
+ return (SANE_STATUS_INVAL);
+ }
+
+ TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width);
+ TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height);
+ npixels = width * height;
+ raster = (unsigned char*) malloc(npixels * sizeof (uint32));
+ if (raster != NULL)
+ {
+ DBG( 1, "Escl Tiff : Memory allocation problem.\n");
+ if (scanner->tmp) {
+ fclose(scanner->tmp);
+ scanner->tmp = NULL;
+ }
+ return (SANE_STATUS_INVAL);
+ }
+
+ if (!TIFFReadRGBAImage(tif, width, height, (uint32 *)raster, 0))
+ {
+ DBG( 1, "Escl Tiff : Problem reading image data.\n");
+ if (scanner->tmp) {
+ fclose(scanner->tmp);
+ scanner->tmp = NULL;
+ }
+ return (SANE_STATUS_INVAL);
+ }
+ *w = (int)width;
+ *h = (int)height;
+ *components = bps;
+ // we don't need row pointers anymore
+ scanner->img_data = raster;
+ scanner->img_size = (int)(width * height * bps);
+ scanner->img_read = 0;
+ TIFFClose(tif);
+ fclose(scanner->tmp);
+ scanner->tmp = NULL;
+ return (SANE_STATUS_GOOD);
+}
+#else
+
+SANE_Status
+get_TIFF_data(capabilities_t __sane_unused__ *scanner,
+ int __sane_unused__ *w,
+ int __sane_unused__ *h,
+ int __sane_unused__ *bps)
+{
+ return (SANE_STATUS_INVAL);
+}
+
+#endif