Merge commit 'upstream/4.6.1'

[debian/atlc] / src / write_bitmap.c

diff --git a/src/write_bitmap.c b/src/write_bitmap.c
new file mode 100644 (file)
index 0000000..c624f76
--- /dev/null
+++ b/src/write_bitmap.c
@@ -0,0 +1,92 @@
+/* atlc - arbitrary transmission line calculator, for the analysis of
+transmission lines are directional couplers. 
+
+Copyright (C) 2002. Dr. David Kirkby, PhD (G8WRB).
+
+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 package_version 2
+of the License, or (at your option) any later package_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.
+
+Dr. David Kirkby, e-mail drkirkby at gmail.com 
+
+*/
+
+#include "config.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#include "definitions.h"
+#include "Erdata.h" 
+
+/* names, colours and Ers are all arrays of 10. It would be better they were 
+in a structure as they are all linked closely, but they are not and I
+can't be bothered to change it */
+
+extern int W, H;
+
+void write_bitmap(FILE *image_data_fp, struct transmission_line_properties xyz)
+{
+   int colour_Er1=-1, colour_Er2=-1, vector_aligned;
+#ifndef HAVE_MEMSET
+   int memory_location;
+#endif
+   unsigned char *image_data, *unaligned_image_vector;
+
+   get_Er1_and_Er2_colours(&colour_Er1, &colour_Er2);
+   W+=2*BORDER;
+   H+=2*BORDER;
+   xyz.W+=2*BORDER;
+   xyz.H+=2*BORDER;
+   /* We create an vector big enough for the image. Since rows are 
+   aligned on 4-byte boundaries, we need to allow suffient space for
+   (W+2)*(H-1) bytes. */
+
+   /* when aligning data on 4-byte boundaries, the 
+   padding must be filled with 0's, to meet the 
+   .bmp standard */
+
+   image_data=ustring(0,(W+3)*3*H);
+   unaligned_image_vector=ustring(0,(W+3)*3*H);
+
+#ifdef HAVE_MEMSET
+   (void) memset((void *) (image_data),0x0,(size_t) ((W+3)*3*H));
+#else
+   for(memory_location=0; memory_location < (W+3)*3*H; ++ memory_location)
+     image_data[memory_location]=0;
+#endif /* end of #ifdef HAVE_MEMSET */
+
+
+   /* Fill a vector with the initial (original) data on the 
+   tline. This is not aligned in any way */
+   /* The following function 'fill_image_vector_with_data' is *not* in the file
+   fill_image_vector_with_data.c, but instead different versions of it are 
+   located in files fill_rect_with_rect.c, fill_circ_with_circ.c, 
+   fill_rect_with_circ.c and fill_circ_with_rect.c */
+   fill_image_vector_with_data(unaligned_image_vector, colour_Er1, colour_Er2, xyz);
+   
+   /* put into the vector, in reverse order - i.e. from bottom to top and 
+   align each row on 4-byte boundaries */
+   vector_aligned=align_bitmap_image(W, H, unaligned_image_vector,image_data);
+   write_bitmap_out(image_data, image_data_fp,vector_aligned, W, H);
+}