JDK-8151787 : Unify the HiDPI splash screen image naming convention
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2016-03-14
  • Updated: 2019-03-08
  • Resolved: 2016-10-06
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JDK 9
9 b143Fixed
Related Reports
Duplicate :  
JDK-8156149 - Blurry rendering on Windows 7 at 125% screen setting
Relates :  
JDK-8162858 - Allow to use high-resolution splash screens in webstart
Relates :  
JDK-8153274 - [PIT] test always fails: java/awt/SplashScreen/MultiResolutionSplash/unix/UnixMultiResolutionSplashTest.java
Relates :  
JDK-8168657 - [PIT] Still, on Windows test always fails: java/awt/SplashScreen/MultiResolutionSplash/unix/UnixMultiResolutionSplashTest.java
Relates :  
JDK-8159592 - [TEST_BUG] java/awt/SplashScreen/MultiResolutionSplash/MultiResolutionSplashTest.java fails on Win. 10 + HiDPI
Relates :  
JDK-8220381 - Scale up splash screen image in HiDPI environment
Relates :  
JDK-8156149 - Blurry rendering on Windows 7 at 125% screen setting
Description
Unify the HiDPI splash screen image naming convention.
We are following different image name conventions on different platforms:
Windows : name.scale-dpiValue.ext
Linux : image.java-scale2x.ext
MAC image@2x.ext
Comments
Correction to the above The proposed name convention for splash screens *and* other multi-res images is @125pct @150pct @200pct @2x @250pct @300pct @3x ie @2x and @3x are supported as synonyms for @200pct and @300pct respectively and also because we already supported @2x on retina Mac.
25-08-2016
The proposed name convention for splash screens: @125pct @150pct @2x @250pct @3x
27-07-2016
As mentioned on the mailing list: IMHO, using different semantics for OS X and Windows that both follow the ".java-scaleXY.png" notation is a bug in the making. There should be *one unified way* that works the same on all platforms. Additional names, that allow enhanced functionality (like a decimal factor or a DPI value), should be special to the platform that supports them. But there should be a lowest common denominator. Why not accept "2x" on Windows as well? Just my 2c.
12-05-2016
In windows scale factor can be floating point value calculated by dividing screen dpi by 96. On windows 7 scale factor ranges from 1 - 2 so scaled image cannot be represented as @2x similar to mac. Also the naming convention used by windows for supporting hiDpi images is as below. Unscaled : name.ext Scaled : name.scale-140.ext Refer : https://msdn.microsoft.com/en-us/library/windows/apps/xaml/hh965325.aspx Below are the currently supported naming convention for an unscaled image image.png Windows : image.scale-dpiValue.png Linux : image.java-scale2x.png MAC : image@2x.png Proposed names Windows : image.java-scale<dpi-value>.png linux : image.java-scale2x.png Mac : image@2x.png and image.java-scale2x.png
09-05-2016
this is a bug, not enhancement
06-05-2016
Webrev submitted for review. Requires a ccc request once review is done.
04-05-2016