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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#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 test shells while they are
// running layout tests.
static CMProfileRef gUsersColorProfile = NULL;
static void SaveCurrentColorProfile(void) {
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 {
gUsersColorProfile = previousProfile;
}
}
static void InstallLayoutTestColorProfile(void) {
// 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 RestoreUsersColorProfile(void) {
if (gUsersColorProfile) {
CGDirectDisplayID displayID = CGMainDisplayID();
CMError error = CMSetProfileByAVID((UInt32)displayID, gUsersColorProfile);
CMCloseProfile(gUsersColorProfile);
if (error) {
NSLog(@"Failed to restore color profile, use System Preferences -> "
@"Displays -> Color to reset. Error: %d", (int)error);
}
gUsersColorProfile = NULL;
}
}
static void SimpleSignalHandler(int sig) {
// Try to restore the color profile and try to go down cleanly
RestoreUsersColorProfile();
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
RestoreUsersColorProfile();
[pool release];
return 0;
}
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