[OpenJDK 2D-Dev] PING: JDK-8017773: OpenJDK7 returns incorrect TrueType font metrics

[Yasumasa Suenaga]

Hi Phili,

I've created patch for this issue and uploaded webrev:

http://cr.openjdk.java.net/~ysuenaga/JDK-8017773/webrev.00/


Could you help me?

Yasumasa


On 04/10/2014 09:29 PM, Yasumasa Suenaga wrote:
> Hi Phili,
> Thank you for replying.
> 
>> I don't know the details of what is on the end of the various links you
>> provide and
>> I can't go grabbing code from somewhere else.
> 
> You can get patches as following:
>    http://icedtea.classpath.org/bugzilla/attachment.cgi?id=873&action=diff
>    http://icedtea.classpath.org/bugzilla/attachment.cgi?id=1014&action=diff
> 
> 
>> So step #1 would be for you to provide a patch I can consider under
>> terms of the
>> OCA against hg.openjdk.java/net/jdk9/client/jdk ..
> 
> I've agreed the OCA, and I'm an author of jdk9 project.
> http://openjdk.java.net/census#ysuenaga
> 
> 
> Thanks,
> 
> Yasumasa
> 
> 
> On 04/10/2014 05:12 AM, Phil Race wrote:
>> All bugs should be fixed first in the main development release and back
>> ported if appropriate.
>> And in any case any targeting you see is purely what the manager-types
>> are doing
>> because of current rules that say a bug needs to be targeted to a release.
>> It doesn't actually mean a thing here as I currently have no time to
>> even consider this bug.
>> I agree with the general premise that bold fonts should only be wider,
>> not taller but
>> I don't know the details of what is on the end of the various links you
>> provide and
>> I can't go grabbing code from somewhere else.
>>
>> So step #1 would be for you to provide a patch I can consider under
>> terms of the
>> OCA against hg.openjdk.java/net/jdk9/client/jdk ..
>>
>> -phil.
>>
>>
>> On 4/3/2014 7:13 AM, Yasumasa Suenaga wrote:
>>> Hi all,
>>>
>>> Have you checked this issue?
>>>
>>> This issue will be fixed in JDK9.
>>> However, I want fix it in JDK7 and JDK8.
>>>
>>>
>>> Yasumasa
>>>
>>>
>>> On 2014/03/17 9:02, Yasumasa Suenaga wrote:
>>>> Hi all,
>>>>
>>>> The "Fix version" of this issue has been changed into 9 from 8-pool.
>>>> Will this issue not be fixed in JDK7/8 ?
>>>>
>>>> I think this issue is bug of OpenJDK implementation.
>>>> So this issue should be fixed ASAP.
>>>>
>>>>
>>>> Yasumasa
>>>>
>>>> On 2014/02/13 16:38, Yasumasa Suenaga wrote:
>>>>> Hi all,
>>>>>
>>>>> I've reported about JDK-8017773 . Have you checked it ?
>>>>>
>>>>> I guess that many Linux distributor will ship OpenJDK8 after JDK8 GA is released.
>>>>> If this issue will not fix at JDK8 GA, many users who use 2D on JDK8 may encounter it.
>>>>>
>>>>> This issue occurs in OpenJDK only.
>>>>> However, I think there are many users who want to use 2D on OpenJDK.
>>>>> So I hope to fix this issue ASAP and hope to backport to JDK7.
>>>>>
>>>>>
>>>>> Please cooperate.
>>>>>
>>>>> Yasumasa
>>>>>
>>>>>
>>>>> On 2014/02/03 15:12, Yasumasa Suenaga wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> My customer encountered this issue.
>>>>>> I think this issue is caused by Bug 1435 [1] and 1659 [2] in IcedTea.
>>>>>>
>>>>>> I read source code of "freetype-2.5.0-4.fc20" .
>>>>>> Bold style should affect Font Glyph only. However, current implementation
>>>>>> of OpenJDK affects Font Face. Thus value of Ascent/Descent is incorrect.
>>>>>>
>>>>>> OracleJDK seems to use sun.font.T2KFontScaler to calculate these values.
>>>>>> So this issue occurs in OpenJDK only.
>>>>>>
>>>>>>
>>>>>> I think we need to merge patches of Bug 1435 and 1659 in IcedTea
>>>>>> to fix JDK-8017773 .
>>>>>>
>>>>>> Could you merge these patches ?
>>>>>> Please cooperate.
>>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Yasumasa
>>>>>>
>>>>>>
>>>>>> [1] http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1435
>>>>>> [2] http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1659
>>>>>>
>>>>>>
>>>>>> ------ D E T A I L S ------
>>>>>>
>>>>>> I've created testcase as "JavaApplication1.java" .
>>>>>> Result as:
>>>>>>
>>>>>> OracleJDK 6 Update 31
>>>>>> ----------------
>>>>>> [root at RHEL6-5 font]# /usr/local/jdk1.6.0_31/bin/java JavaApplication1
>>>>>> JDK: 1.6.0_31
>>>>>>          VM: Java HotSpot(TM) 64-Bit Server VM
>>>>>>
>>>>>> java.awt.Font[family=IPAMincho,name=IPAMincho,style=plain,size=50]
>>>>>>           Ascent:  43.99414
>>>>>>           Descent: 6.0058594
>>>>>>
>>>>>> java.awt.Font[family=IPAMincho,name=IPAMincho,style=bold,size=50]
>>>>>>           Ascent:  43.99414
>>>>>>           Descent: 6.0058594
>>>>>> ----------------
>>>>>>
>>>>>> OpenJDK7 (in RHEL6.5)
>>>>>> ----------------
>>>>>> [root at RHEL6-5 font]# java JavaApplication1
>>>>>> JDK: 1.7.0_45
>>>>>>          VM: OpenJDK 64-Bit Server VM
>>>>>>
>>>>>> java.awt.Font[family=IPAMincho,name=IPAMincho,style=plain,size=50]
>>>>>>           Ascent:  43.99414
>>>>>>           Descent: 6.0058594
>>>>>>
>>>>>> java.awt.Font[family=IPAMincho,name=IPAMincho,style=bold,size=50]
>>>>>>           Ascent:  45.60547
>>>>>>           Descent: 4.3945312
>>>>>> ----------------
>>