--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKitTools/DumpRenderTree/chromium/LayoutTestHelper.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2010 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import <AppKit/AppKit.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// This is a simple helper app that changes the color sync profile to the
+// generic profile and back when done.  This program is managed by the layout
+// test script, so it can do the job for multiple DumpRenderTree while they are
+// running layout tests.
+
+static CMProfileRef userColorProfile = 0;
+
+static void saveCurrentColorProfile()
+{
+    CGDirectDisplayID displayID = CGMainDisplayID();
+    CMProfileRef previousProfile;
+    CMError error = CMGetProfileByAVID((UInt32)displayID, &previousProfile);
+    if (error) {
+        NSLog(@"failed to get the current color profile, pixmaps won't match. "
+              @"Error: %d", (int)error);
+    } else {
+        userColorProfile = previousProfile;
+    }
+}
+
+static void installLayoutTestColorProfile()
+{
+    // To make sure we get consistent colors (not dependent on the Main display),
+    // we force the generic rgb color profile.  This cases a change the user can
+    // see.
+
+    CGDirectDisplayID displayID = CGMainDisplayID();
+    NSColorSpace* genericSpace = [NSColorSpace genericRGBColorSpace];
+    CMProfileRef genericProfile = (CMProfileRef)[genericSpace colorSyncProfile];
+    CMError error = CMSetProfileByAVID((UInt32)displayID, genericProfile);
+    if (error) {
+        NSLog(@"failed install the generic color profile, pixmaps won't match. "
+              @"Error: %d", (int)error);
+    }
+}
+
+static void restoreUserColorProfile(void)
+{
+    if (!userColorProfile)
+        return;
+    CGDirectDisplayID displayID = CGMainDisplayID();
+    CMError error = CMSetProfileByAVID((UInt32)displayID, userColorProfile);
+    CMCloseProfile(userColorProfile);
+    if (error) {
+        NSLog(@"Failed to restore color profile, use System Preferences -> "
+              @"Displays -> Color to reset. Error: %d", (int)error);
+    }
+    userColorProfile = 0;
+}
+
+static void simpleSignalHandler(int sig)
+{
+    // Try to restore the color profile and try to go down cleanly
+    restoreUserColorProfile();
+    exit(128 + sig);
+}
+
+int main(int argc, char* argv[])
+{
+    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
+    // Hooks the ways we might get told to clean up...
+    signal(SIGINT, simpleSignalHandler);
+    signal(SIGHUP, simpleSignalHandler);
+    signal(SIGTERM, simpleSignalHandler);
+
+    // Save off the current profile, and then install the layout test profile.
+    saveCurrentColorProfile();
+    installLayoutTestColorProfile();
+
+    // Let the script know we're ready
+    printf("ready\n");
+    fflush(stdout);
+
+    // Wait for any key (or signal)
+    getchar();
+
+    // Restore the profile
+    restoreUserColorProfile();
+
+    [pool release];
+    return 0;
+}