Initial revision

1 files changed, 60 insertions, 0 deletions

diff --git a/wr/write-tiff.c b/wr/write-tiff.c
new file mode 100644
index 0000000..9d4910e
--- /dev/null
+++ b/wr/write-tiff.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <tiffio.h>
+
+#include "readers.h"
+#include "writers.h"
+#include "viewer.h"
+
+/* ---------------------------------------------------------------------- */
+/* save                                                                   */
+
+static int
+tiff_write(FILE *fp, struct ida_image *img)
+{
+    TIFF          *TiffHndl;
+    tdata_t       buf;
+    unsigned int  y;
+
+    TiffHndl = TIFFFdOpen(fileno(fp),"42.tiff","w");
+    if (TiffHndl == NULL)
+	return -1;
+    TIFFSetField(TiffHndl, TIFFTAG_IMAGEWIDTH, img->i.width);
+    TIFFSetField(TiffHndl, TIFFTAG_IMAGELENGTH, img->i.height);
+    TIFFSetField(TiffHndl, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+    TIFFSetField(TiffHndl, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+    TIFFSetField(TiffHndl, TIFFTAG_BITSPERSAMPLE, 8);
+    TIFFSetField(TiffHndl, TIFFTAG_SAMPLESPERPIXEL, 3);
+    TIFFSetField(TiffHndl, TIFFTAG_ROWSPERSTRIP, 2);
+    TIFFSetField(TiffHndl, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+#if 0 /* fixme: make this configureable */
+    TIFFSetField(TiffHndl, TIFFTAG_COMPRESSION, COMPRESSION_LZW);
+    TIFFSetField(TiffHndl, TIFFTAG_PREDICTOR, 2);
+#endif
+    if (img->i.dpi) {
+	float dpi = img->i.dpi;
+	TIFFSetField(TiffHndl, TIFFTAG_RESOLUTIONUNIT, RESUNIT_INCH);
+	TIFFSetField(TiffHndl, TIFFTAG_XRESOLUTION,    dpi);
+	TIFFSetField(TiffHndl, TIFFTAG_YRESOLUTION,    dpi);
+    }
+
+    for (y = 0; y < img->i.height; y++) {
+	buf = img->data + 3*img->i.width*y;
+	TIFFWriteScanline(TiffHndl, buf, y, 0);
+    }
+    TIFFClose(TiffHndl);
+    return 0;
+}
+
+static struct ida_writer tiff_writer = {
+    label:  "TIFF",
+    ext:    { "tif", "tiff", NULL},
+    write:  tiff_write,
+};
+
+static void __init init_wr(void)
+{
+    write_register(&tiff_writer);
+}