Added a script to do the final composition from the top level design,
the seal ring, and the fill generation.
diff --git a/scripts/compositor.py b/scripts/compositor.py
index 3d96ca4..00b96b8 100644
--- a/scripts/compositor.py
+++ b/scripts/compositor.py
@@ -1,5 +1,118 @@
#!/bin/env python3
#
-# compository.py ---
+# compositor.py ---
#
-# Final composition. Combine the caravel top level, seal ring, and fill.
+# Compose the final GDS for caravel from the caravel GDS, seal ring
+# GDS, and fill GDS.
+#
+
+import sys
+import os
+import re
+import subprocess
+
+def usage():
+ print("compositor.py [layout_name] [-keep]")
+ return 0
+
+if __name__ == '__main__':
+
+ if len(sys.argv) == 1:
+ usage()
+ sys.exit(0)
+
+ optionlist = []
+ arguments = []
+
+ debugmode = False
+ keepmode = False
+
+ for option in sys.argv[1:]:
+ if option.find('-', 0) == 0:
+ optionlist.append(option)
+ else:
+ arguments.append(option)
+
+ if len(arguments) > 1:
+ print("Wrong number of arguments given to compositor.py.")
+ usage()
+ sys.exit(0)
+
+ if len(arguments) == 1:
+ project = arguments[0]
+ else:
+ project = 'caravel'
+
+ if '-debug' in optionlist:
+ debugmode = True
+ if '-keep' in optionlist:
+ keepmode = True
+
+ magdir = '../mag'
+ rcfile = magdir + '/.magicrc'
+
+ with open(magdir + '/compose_final.tcl', 'w') as ofile:
+ print('#!/bin/env wish', file=ofile)
+ print('drc off', file=ofile)
+
+ print('load ' + project + ' -dereference', file=ofile)
+ print('select top cell', file=ofile)
+
+ # Ceate a cell to represent the generated fill. There are
+ # no magic layers corresponding to the fill shape data, and
+ # it's gigabytes anyway, so we don't want to deal with any
+ # actual data. So it's just a placeholder.
+
+ print('set bbox [box values]', file=ofile)
+ print('load ' + project + '_fill_pattern', file=ofile)
+ print('snap internal', file=ofile)
+ print('box values {*}$bbox', file=ofile)
+ print('paint comment', file=ofile)
+ print('property GDS_FILE ../gds/' + project + '_fill_pattern.gds', file=ofile)
+ print('property GDS_START 0', file=ofile)
+ print('property FIXED_BBOX "$bbox"', file=ofile)
+
+ # Now go back to the project top level and place the fill cell.
+ print('load ' + project, file=ofile)
+ print('select top cell', file=ofile)
+ print('getcell ' + project + '_fill_pattern child 0 0', file=ofile)
+
+ # Move existing origin to (6um, 6um) for seal ring placement
+ print('move origin -6um -6um', file=ofile)
+
+ # Read in abstract view of seal ring
+ print('box position 0 0', file=ofile)
+ print('getcell advSeal_6um_gen', file=ofile)
+
+ # Generate final GDS
+ print('puts stdout "Writing final GDS. . . "', file=ofile)
+ print('flush stdout', file=ofile)
+ print('gds write ../gds/' + project + '_final.gds', file=ofile)
+ print('quit -noprompt', file=ofile)
+
+ myenv = os.environ.copy()
+ # Abstract views are appropriate for final composition
+ myenv['MAGTYPE'] = 'maglef'
+
+ mproc = subprocess.run(['magic', '-dnull', '-noconsole',
+ '-rcfile', rcfile, magdir + '/compose_final.tcl'],
+ stdin = subprocess.DEVNULL,
+ stdout = subprocess.PIPE,
+ stderr = subprocess.PIPE,
+ cwd = magdir,
+ env = myenv,
+ universal_newlines = True)
+ if mproc.stdout:
+ for line in mproc.stdout.splitlines():
+ print(line)
+ if mproc.stderr:
+ print('Error message output from magic:')
+ for line in mproc.stderr.splitlines():
+ print(line)
+ if mproc.returncode != 0:
+ print('ERROR: Magic exited with status ' + str(mproc.returncode))
+
+ if not keepmode:
+ os.remove(magdir + '/compose_final.tcl')
+
+ exit(0)
