Hello Alexandr,

 

Thanks for the review.

I have updated the webrev as per review comments.

 

Webrev : http://cr.openjdk.java.net/~rchamyal/8145174/webrev.01/

 

- It may be useful to have the same name convention for high-resolution splash 
screen on all platforms.
    It allows to use only one  image.java-scale2x.ext file instead to have 
HYPERLINK "mailto:im...@2x.ext"im...@2x.ext on Mac OS X and name.scale-200.ext 
on Windows.
   For windows we can have scale factor as float  value so it would be 
difficult to identify which image name to be displayed.

 

Regards,

Rajeev Chamyal

 

From: Alexander Scherbatiy 
Sent: 18 February 2016 02:55
To: Rajeev Chamyal; awt-dev@openjdk.java.net; Sergey Bylokhov
Subject: Re: <AWT Dev> [9] Review request for JDK-8145174 HiDPI splash screen 
support on Linux

 

On 12/02/16 16:21, Rajeev Chamyal wrote:



Hello All,

 

Could you please review the following fix.

Bug : https://bugs.openjdk.java.net/browse/JDK-8145174

Webrev : HYPERLINK 
"http://cr.openjdk.java.net/%7Erchamyal/8145174/webrev.00/"http://cr.openjdk.java.net/~rchamyal/8145174/webrev.00/

 

This is an enhancement to support HiDPI splash screen on Linux.

As a part of this enhancement implementation to 
splashscreen_sys.c::SplashGetScaledImageName method has been provided based on 
the GDK_SCALE environment variable set on unix/linux system.

The new implementation checks for GDK_SCALE set on system and returns the 
scaled image name, if GDK_SCALE=2 otherwise NULL.

The naming convention followed for scaled image is as follows:

 

Unscaled image name : image.ext

Scaled image name : image.java-scale2x.ext


  - It may be useful to have the same name convention for high-resolution 
splash screen on all platforms.
    It allows to use only one  image.java-scale2x.ext file instead to have 
HYPERLINK "mailto:im...@2x.ext"im...@2x.ext on Mac OS X and name.scale-200.ext 
on Windows.
    Could you create an enhancement on it and send it to the review? 



The automated jtreg test for this is currently failing due to issues in 
robot.getPixelColor it is returning wrong pixel color for GDK_SCALE=2.

 

Also fixed issues in following files.

1)      splashscreen_impl.c::SplashInit() was resetting the scaleFactor to 1.

  - SplashSetScaleFactor should not be called from the SplashGetScaledImageName 
method because SplashInit has not been called yet.
  - The problem with setting the scale factor in SplashInit is that it is not 
clear is the high-resolution splash screen image provided or not. If the the 
high-resolution splash screen is not provided the scale factor should be set to 
1.
  - The java.c uses the following sequence for the splash screen initialization:
    --------------
     scaled_splash_name = DoSplashGetScaledImageName(
                        jar_name, file_name, &scale_factor);
    DoSplashInit();
    DoSplashSetScaleFactor(scale_factor);
    DoSplashLoadFile(scaled_splash_name);
    --------------
  To make the SplashSetScaleFactor method work it should also be added to the 
make/mapfiles/libsplashscreen/mapfile-vers file.

 - There are two codes which detect the scale factor. One is in the splash 
screen (getNativeScaleFactor()  method)
  and another in the AWT 
(src/java.desktop/unix/native/libawt_xawt/awt/awt_GraphicsEnv.c file).
  Is it possible to move it one code that it will be used both from splash 
screen and from AWT?

  Thanks,
  Alexandr.



2)      SplashScreen.java:: getBounds fixed the typo.

 

Regards,

Rajeev Chamyal

 

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