From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 10 Oct 2013 17:58:05 +0000 (+0300)
Subject: Tweak QuartzLoader a bit
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=06bc1c43ef26b3256dd92a20dbdf7ed9e08bab04;hp=dc16f33663ae51be2966aba81848c4d139149f60;p=libs%2Fgui.git

Tweak QuartzLoader a bit

Apparently OS X 10.5 uses kCGImageStatusReadingHeader, while 10.8 uses
kCGImageStatusIncomplete.  Also check that we actually got an image when
trying to load.
---

diff --git a/source/graphics/quartz/quartzloader.cpp b/source/graphics/quartz/quartzloader.cpp
index aa11daa..3447f5f 100644
--- a/source/graphics/quartz/quartzloader.cpp
+++ b/source/graphics/quartz/quartzloader.cpp
@@ -82,12 +82,14 @@ bool QuartzLoader::detect(const string &sig)
 	CFRelease(data);
 	CFRelease(source);
 
-	return status==kCGImageStatusIncomplete;
+	return status==kCGImageStatusIncomplete || status==kCGImageStatusReadingHeader;
 }
 
 void QuartzLoader::load(Image::Data &data)
 {
 	CGImageRef image = CGImageSourceCreateImageAtIndex(priv->source, 0, 0);
+	if(!image)
+		throw bad_image_data("null image");
 
 	try
 	{