#1232: add Mark Adler's crc32c to speed things up using sse 4.2 CPU i…

…nstructions

git-svn-id: https://xpra.org/svn/Xpra/trunk@13402 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/setup.py

@@ -2178,9 +2178,13 @@ def osx_pkgconfig(*pkgs_options, **ekw):
     cython_add(Extension("xpra.server.window.region",
                 ["xpra/server/window/region.pyx"],
                 **O3_pkgconfig))
-    cython_add(Extension("xpra.server.window.motion",
-                ["xpra/server/window/motion.pyx"]+membuffers_c,
-                **O3_pkgconfig))
+    #no pthreads on win32:
+    if not WIN32:
+        motion_pkgconfig = O3_pkgconfig.copy()
+        add_to_keywords(motion_pkgconfig, 'extra_link_args', "-lpthread")
+        cython_add(Extension("xpra.server.window.motion",
+                    ["xpra/server/window/motion.pyx"]+membuffers_c+["xpra/buffers/crc32c.c"],
+                    **O3_pkgconfig))
 
 
 toggle_packages(enc_proxy_ENABLED, "xpra.codecs.enc_proxy")

src/tests/xpra/server/test_crc32c.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+# This file is part of Xpra.
+# Copyright (C) 2016 Antoine Martin <[email protected]>
+# Xpra is released under the terms of the GNU GPL v2, or, at your option, any
+# later version. See the file COPYING for details.
+
+import time
+import numpy as np
+
+from xpra.server.window.motion import CRC_Image
+
+
+def test_CRC_Image():
+    start = time.time()
+    N = 100
+    W = 1920
+    H = 1080
+    BPP = 4
+    LEN = W * H * BPP
+    buf = np.random.randint(256, size=LEN).tobytes()
+    ov = CRC_Image(buf, W//4, H, W, 4)
+    #print("CRC_Image(..)=%s" % (ov, ))
+    for _ in range(N):
+        v = CRC_Image(buf, W//4, H, W, 4)
+        assert v==ov
+        assert len(v)==H
+    end = time.time()
+    elapsed = end-start
+    print("crc32c: %i times %ix%i (%.1fMB) in %.3fs, %.1fGB/s" % (N, W, H, LEN//(1024.0*1024.0), elapsed, ((N*LEN) / (end-start) / (1024*1024*1024))))
+    #just for comparing:
+    #crc the whole buffer (which is more advantageous)
+    from zlib import crc32
+    start = time.time()
+    v = crc32(buf)
+    end = time.time()
+    print("zlib.crc32: %.2fMB/s" % ((N*LEN)//(end-start)/(1024*1024*1024)))
+
+def main():
+    test_CRC_Image()
+
+if __name__ == "__main__":
+    main()

src/tests/xpra/test_apps/test_window_iconify.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+import glib
+import gtk
+
+def main():
+	window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+	window.set_size_request(400, 200)
+	window.connect("delete_event", gtk.mainquit)
+	window.iconify()
+	glib.timeout_add(2000, window.deiconify)
+	gtk.main()
+	return 0
+
+
+if __name__ == "__main__":
+	main()