fix darkcult: add -Pn parallel rendering mode.

tools/darkroom/darkcult.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import subprocess
+import multiprocessing
+
+def compile(command):
+	sys.stdout.write(".")
+	sys.stdout.flush()
+	return subprocess.call(command, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE)
+
+if __name__=="__main__":
+	argv = sys.argv
+	argc = len(argv)
+
+	src = argv[1]
+	stagedir = argv[2]
+	output = argv[3]
+	compiler = argv[4]
+	width = int(argv[5])
+	height = int(argv[6])
+	tile_width = int(argv[7])
+	tile_height = int(argv[8])
+	compile_options = argv[9]
+	darkcult_cpp = argv[10]
+	max_procs = int(argv[11])
+
+	commands = []
+	for y in range(0, height, tile_height):
+		for x in range(0, width, tile_width):
+			bin = "%s/%d/%d.out" % (stagedir, y, x)
+			out = "%s/%d/%d.ppm" % (stagedir, y, x)
+			command = "%s -o %s" \
+				" %s" \
+				" -DDARKROOM_SOURCE=\'\"%s\"\'" \
+				" -DDARKROOM_TOTAL_WIDTH=%d -DDARKROOM_TOTAL_HEIGHT=%d" \
+				" -DDARKROOM_TILE_WIDTH=%d -DDARKROOM_TILE_HEIGHT=%d" \
+				" -DDARKROOM_OFFSET_X=%d -DDARKROOM_OFFSET_Y=%d" \
+				" %s" \
+				" && %s > %s" \
+				% (compiler, bin,
+					compile_options,
+					src,
+					width, height,
+					tile_width, tile_height,
+					x, y,
+					darkcult_cpp,
+					bin, out
+				)
+			commands.append(command);
+
+	pool = multiprocessing.Pool(max_procs)
+	sys.exit(any(pool.map(compile, commands)))