added universal exporter

funcs/exporter.c

@@ -0,0 +1,75 @@
+/*
+ *		exporter.c
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <string.h>
+
+#include "../floatimg.h"
+
+extern int		verbosity;
+
+/* --------------------------------------------------------------------- */
+/*
+ *	multi-magic 'save file' function.
+ */
+int fimg_export_picture(FloatImg *pic, char *fname, int flags)
+{
+int		filetype;
+int		foo;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p '%s' 0x%X )\n", __func__,
+				pic, fname, flags);
+#endif
+
+filetype = format_from_extension(fname);
+if (verbosity) {
+	fprintf(stderr, "file %s : type %d\n", fname, filetype);
+	}
+
+switch(filetype) {
+
+	case FILE_TYPE_FIMG:
+		foo = fimg_dump_to_file(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_PNM:
+		foo = fimg_save_as_pnm(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_PNG:
+		foo = fimg_save_as_png(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_TGA:
+		fprintf(stderr, "%s: FILE_TYPE_TGA not implemented\n",
+				__func__);
+		foo = -666;
+		break;
+
+	case FILE_TYPE_TIFF:
+		foo = fimg_write_as_tiff(pic, fname, 0);
+		break;
+
+	case FILE_TYPE_FITS:
+		foo = fimg_save_R_as_fits(pic, fname, 0);
+		break;
+
+	default:
+		foo = -1789;
+		break;
+
+	}
+
+if (foo) {
+	fprintf(stderr, "%s: exporting '%s' -> %d\n", __func__,
+					fname, foo);
+	/* que faire maintenant ? */
+	}
+
+return foo;
+}
+/* --------------------------------------------------------------------- */
+