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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/179637">179637</a></dd>
<dt>Author</dt> <dd>simon.fraser@apple.com</dd>
<dt>Date</dt> <dd>2015-02-04 14:38:46 -0800 (Wed, 04 Feb 2015)</dd>
</dl>

<h3>Log Message</h3>
<pre>LayoutTestHelper should set the color profile of all displays
https://bugs.webkit.org/show_bug.cgi?id=141260

Reviewed by Tim Horton.

WebKitTestRunner can (erroneously) grab the colorspace of the &quot;main&quot; screen.
which is the screen with the active window. Make things more robust by changing
the colorspace of all displays, not just the main screen, when running layout tests.

* DumpRenderTree/mac/Configurations/LayoutTestHelper.xcconfig: Enable ARC
* DumpRenderTree/mac/LayoutTestHelper.m:
(originalColorProfileURLs):
(colorProfileURLForDisplay):
(displayUUIDStrings):
(saveDisplayColorProfiles):
(setDisplayColorProfile):
(restoreDisplayColorProfiles):
(installLayoutTestColorProfile):
(restoreUserColorProfile):
(main):
Store display color profiles by map of UUID strings to URLs (NSUUID and CFUUID are not
toll-free bridged, sadly). Use the map to restore all profiles on exit.
Convert to use more Obj-C types.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkToolsChangeLog">trunk/Tools/ChangeLog</a></li>
<li><a href="#trunkToolsDumpRenderTreemacLayoutTestHelperm">trunk/Tools/DumpRenderTree/mac/LayoutTestHelper.m</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkToolsChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Tools/ChangeLog (179636 => 179637)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/ChangeLog        2015-02-04 22:29:01 UTC (rev 179636)
+++ trunk/Tools/ChangeLog        2015-02-04 22:38:46 UTC (rev 179637)
</span><span class="lines">@@ -1,3 +1,29 @@
</span><ins>+2015-02-04  Simon Fraser  &lt;simon.fraser@apple.com&gt;
+
+        LayoutTestHelper should set the color profile of all displays
+        https://bugs.webkit.org/show_bug.cgi?id=141260
+
+        Reviewed by Tim Horton.
+        
+        WebKitTestRunner can (erroneously) grab the colorspace of the &quot;main&quot; screen.
+        which is the screen with the active window. Make things more robust by changing
+        the colorspace of all displays, not just the main screen, when running layout tests.
+
+        * DumpRenderTree/mac/Configurations/LayoutTestHelper.xcconfig: Enable ARC
+        * DumpRenderTree/mac/LayoutTestHelper.m: 
+        (originalColorProfileURLs):
+        (colorProfileURLForDisplay):
+        (displayUUIDStrings):
+        (saveDisplayColorProfiles):
+        (setDisplayColorProfile):
+        (restoreDisplayColorProfiles):
+        (installLayoutTestColorProfile):
+        (restoreUserColorProfile):
+        (main):        
+        Store display color profiles by map of UUID strings to URLs (NSUUID and CFUUID are not
+        toll-free bridged, sadly). Use the map to restore all profiles on exit.
+        Convert to use more Obj-C types.
+
</ins><span class="cx"> 2015-02-04  Daniel Bates  &lt;dabates@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         test-webkitpy fails on Mac without iphoneos SDK
</span></span></pre></div>
<a id="trunkToolsDumpRenderTreemacLayoutTestHelperm"></a>
<div class="modfile"><h4>Modified: trunk/Tools/DumpRenderTree/mac/LayoutTestHelper.m (179636 => 179637)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Tools/DumpRenderTree/mac/LayoutTestHelper.m        2015-02-04 22:29:01 UTC (rev 179636)
+++ trunk/Tools/DumpRenderTree/mac/LayoutTestHelper.m        2015-02-04 22:38:46 UTC (rev 179637)
</span><span class="lines">@@ -45,73 +45,129 @@
</span><span class="cx"> 
</span><span class="cx"> static int installColorProfile = false;
</span><span class="cx"> 
</span><del>-static CFURLRef sUserColorProfileURL;
</del><ins>+static NSMutableDictionary *originalColorProfileURLs()
+{
+    static NSMutableDictionary *sharedInstance;
+    if (!sharedInstance)
+        sharedInstance = [[NSMutableDictionary alloc] init];
+    return sharedInstance;
+}
</ins><span class="cx"> 
</span><ins>+static NSURL *colorProfileURLForDisplay(NSString *displayUUIDString)
+{
+    CFUUIDRef uuid = CFUUIDCreateFromString(kCFAllocatorDefault, (CFStringRef)displayUUIDString);
+    CFDictionaryRef deviceInfo = ColorSyncDeviceCopyDeviceInfo(kColorSyncDisplayDeviceClass, uuid);
+    CFRelease(uuid);
+    if (!deviceInfo) {
+        NSLog(@&quot;No display attached to system; not setting main display's color profile.&quot;);
+        return nil;
+    }
+
+    CFURLRef profileURL;
+    CFDictionaryRef profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncCustomProfiles);
+    if (profileInfo)
+        profileURL = (CFURLRef)CFDictionaryGetValue(profileInfo, CFSTR(&quot;1&quot;));
+    else {
+        profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncFactoryProfiles);
+        CFDictionaryRef factoryProfile = (CFDictionaryRef)CFDictionaryGetValue(profileInfo, CFSTR(&quot;1&quot;));
+        profileURL = (CFURLRef)CFDictionaryGetValue(factoryProfile, kColorSyncDeviceProfileURL);
+    }
+    
+    
+    NSURL *url = (NSURL *)CFAutorelease(CFRetain(profileURL));
+    CFRelease(deviceInfo);
+    return url;
+}
+
+static NSArray *displayUUIDStrings()
+{
+    NSMutableArray *result = [NSMutableArray array];
+
+    static const uint32_t maxDisplayCount = 10;
+    CGDirectDisplayID displayIDs[maxDisplayCount] = { 0 };
+    uint32_t displayCount = 0;
+    
+    CGError err = CGGetActiveDisplayList(maxDisplayCount, displayIDs, &amp;displayCount);
+    if (err != kCGErrorSuccess) {
+        NSLog(@&quot;Error %d getting active display list; not setting display color profile.&quot;, err);
+        return nil;
+    }
+
+    if (!displayCount) {
+        NSLog(@&quot;No display attached to system; not setting display color profile.&quot;);
+        return nil;
+    }
+
+    for (uint32_t i = 0; i &lt; displayCount; ++i) {
+        CFUUIDRef displayUUIDRef = CGDisplayCreateUUIDFromDisplayID(displayIDs[i]);
+        [result addObject:(NSString *)CFBridgingRelease(CFUUIDCreateString(kCFAllocatorDefault, displayUUIDRef))];
+        CFRelease(displayUUIDRef);
+    }
+    
+    return result;
+}
+
+static void saveDisplayColorProfiles(NSArray *displayUUIDStrings)
+{
+    NSMutableDictionary *userColorProfiles = originalColorProfileURLs();
+
+    for (NSString *UUIDString in displayUUIDStrings) {
+        if ([userColorProfiles objectForKey:UUIDString])
+            continue;
+        
+        NSURL *colorProfileURL = colorProfileURLForDisplay(UUIDString);
+        [userColorProfiles setObject:colorProfileURL forKey:UUIDString];
+    }
+}
+
+static void setDisplayColorProfile(NSString *displayUUIDString, NSURL *colorProfileURL)
+{
+    NSDictionary *profileInfo = @{
+        (NSString *)kColorSyncDeviceDefaultProfileID : colorProfileURL
+    };
+
+    CFUUIDRef uuid = CFUUIDCreateFromString(kCFAllocatorDefault, (CFStringRef)displayUUIDString);
+    BOOL success = ColorSyncDeviceSetCustomProfiles(kColorSyncDisplayDeviceClass, uuid, (CFDictionaryRef)profileInfo);
+    if (!success)
+        NSLog(@&quot;Failed to set color profile for display %@! Many pixel tests may fail as a result.&quot;, displayUUIDString);
+    CFRelease(uuid);
+}
+
+static void restoreDisplayColorProfiles(NSArray *displayUUIDStrings)
+{
+    NSMutableDictionary* userColorProfiles = originalColorProfileURLs();
+
+    for (NSString *UUIDString in displayUUIDStrings) {
+        NSURL *profileURL = [userColorProfiles objectForKey:UUIDString];
+        if (!profileURL)
+            continue;
+        
+        setDisplayColorProfile(UUIDString, profileURL);
+    }
+}
+
</ins><span class="cx"> static void installLayoutTestColorProfile()
</span><span class="cx"> {
</span><span class="cx">     if (!installColorProfile)
</span><span class="cx">         return;
</span><span class="cx"> 
</span><span class="cx">     // To make sure we get consistent colors (not dependent on the chosen color
</span><del>-    // space of the main display), we force the generic RGB color profile.
</del><ins>+    // space of the display), we force the generic sRGB color profile on all displays.
</ins><span class="cx">     // This causes a change the user can see.
</span><del>-    
-    CFUUIDRef mainDisplayID = CGDisplayCreateUUIDFromDisplayID(CGMainDisplayID());
-    
-    if (!sUserColorProfileURL) {
-        CFDictionaryRef deviceInfo = ColorSyncDeviceCopyDeviceInfo(kColorSyncDisplayDeviceClass, mainDisplayID);
</del><span class="cx"> 
</span><del>-        if (!deviceInfo) {
-            NSLog(@&quot;No display attached to system; not setting main display's color profile.&quot;);
-            CFRelease(mainDisplayID);
-            return;
-        }
</del><ins>+    NSArray *displays = displayUUIDStrings();
+    saveDisplayColorProfiles(displays);
</ins><span class="cx"> 
</span><del>-        CFDictionaryRef profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncCustomProfiles);
-        if (profileInfo) {
-            sUserColorProfileURL = (CFURLRef)CFDictionaryGetValue(profileInfo, CFSTR(&quot;1&quot;));
-            CFRetain(sUserColorProfileURL);
-        } else {
-            profileInfo = (CFDictionaryRef)CFDictionaryGetValue(deviceInfo, kColorSyncFactoryProfiles);
-            CFDictionaryRef factoryProfile = (CFDictionaryRef)CFDictionaryGetValue(profileInfo, CFSTR(&quot;1&quot;));
-            sUserColorProfileURL = (CFURLRef)CFDictionaryGetValue(factoryProfile, kColorSyncDeviceProfileURL);
-            CFRetain(sUserColorProfileURL);
-        }
-        
-        CFRelease(deviceInfo);
-    }
-
</del><span class="cx">     ColorSyncProfileRef sRGBProfile = ColorSyncProfileCreateWithName(kColorSyncSRGBProfile);
</span><span class="cx">     CFErrorRef error;
</span><span class="cx">     CFURLRef profileURL = ColorSyncProfileGetURL(sRGBProfile, &amp;error);
</span><span class="cx">     if (!profileURL) {
</span><span class="cx">         NSLog(@&quot;Failed to get URL of Generic RGB color profile! Many pixel tests may fail as a result. Error: %@&quot;, error);
</span><del>-        
-        if (sUserColorProfileURL) {
-            CFRelease(sUserColorProfileURL);
-            sUserColorProfileURL = 0;
-        }
-        
-        CFRelease(sRGBProfile);
-        CFRelease(mainDisplayID);
</del><span class="cx">         return;
</span><span class="cx">     }
</span><del>-        
-    CFMutableDictionaryRef profileInfo = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &amp;kCFTypeDictionaryKeyCallBacks, &amp;kCFTypeDictionaryValueCallBacks);
-    CFDictionarySetValue(profileInfo, kColorSyncDeviceDefaultProfileID, profileURL);
</del><span class="cx">     
</span><del>-    if (!ColorSyncDeviceSetCustomProfiles(kColorSyncDisplayDeviceClass, mainDisplayID, profileInfo)) {
-        NSLog(@&quot;Failed to set color profile for main display! Many pixel tests may fail as a result.&quot;);
-        
-        if (sUserColorProfileURL) {
-            CFRelease(sUserColorProfileURL);
-            sUserColorProfileURL = 0;
-        }
-    }
-    
-    CFRelease(profileInfo);
-    CFRelease(sRGBProfile);
-    CFRelease(mainDisplayID);
</del><ins>+    for (NSString *displayUUIDString in displays)
+        setDisplayColorProfile(displayUUIDString, (NSURL *)profileURL);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> static void restoreUserColorProfile(void)
</span><span class="lines">@@ -122,15 +178,8 @@
</span><span class="cx">     // This is used as a signal handler, and thus the calls into ColorSync are unsafe.
</span><span class="cx">     // But we might as well try to restore the user's color profile, we're going down anyway...
</span><span class="cx">     
</span><del>-    if (!sUserColorProfileURL)
-        return;
-    
-    CFUUIDRef mainDisplayID = CGDisplayCreateUUIDFromDisplayID(CGMainDisplayID());
-    CFMutableDictionaryRef profileInfo = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &amp;kCFTypeDictionaryKeyCallBacks, &amp;kCFTypeDictionaryValueCallBacks);
-    CFDictionarySetValue(profileInfo, kColorSyncDeviceDefaultProfileID, sUserColorProfileURL);
-    ColorSyncDeviceSetCustomProfiles(kColorSyncDisplayDeviceClass, mainDisplayID, profileInfo);
-    CFRelease(mainDisplayID);
-    CFRelease(profileInfo);
</del><ins>+    NSArray *displays = displayUUIDStrings();
+    restoreDisplayColorProfiles(displays);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> static void simpleSignalHandler(int sig)
</span><span class="lines">@@ -188,8 +237,6 @@
</span><span class="cx">         }
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
-
</del><span class="cx">     // Hooks the ways we might get told to clean up...
</span><span class="cx">     signal(SIGINT, simpleSignalHandler);
</span><span class="cx">     signal(SIGHUP, simpleSignalHandler);
</span><span class="lines">@@ -210,7 +257,6 @@
</span><span class="cx">     // Restore the profile
</span><span class="cx">     restoreUserColorProfile();
</span><span class="cx"> 
</span><del>-    [pool release];
</del><span class="cx">     return 0;
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre>
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