Re: Some issues using NEWT
Posted by Sven Gothel on Feb 25, 2012; 12:49am
URL: https://forum.jogamp.org/Some-issues-using-NEWT-tp3757230p3774174.html
On 02/25/2012 01:21 AM, ac [via jogamp] wrote:
>
>
>> This is because of using the OSX CALayer (offscreen animation layer),
>> which has it's own static refresh cycle.
>>
>> We need to tune this code path (if possible), eg. hand 'down' the fps
>> values.
>> Pls create a bug report - if you don't mind.
>
> Mostly out of curiosity (since I don't think I have enough knowledge to
> tackle this bug myself), what is the source code file in jogl where the
> framerate of the OSX CALayer could be controlled? At least I'd like to take
> a look, maybe some idea or suggestion will come up :-)
>It's all in one file, pretty much isolated and orthogonal,
so possible to fix it w/o overall system knowledge.
Setup here:
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l127>
A note:
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l260>
SetSwapInterval (NOP with CALayer):
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l360>
If you know a way how to control the swap interval at least,
that would be great.
Technically the JOGL 'user' code provides a texture from
rendering into the pbuffer.
The CALayer renders the textures into
whatever the 'sink' is from it's own animation thread.
If we would have at least a vsync (swap interval),
we could sync rendering properly.
It's highly likely that I am missing something here.
~Sven
URL: https://forum.jogamp.org/Some-issues-using-NEWT-tp3757230p3774174.html
On 02/25/2012 01:21 AM, ac [via jogamp] wrote:
>
>
>> This is because of using the OSX CALayer (offscreen animation layer),
>> which has it's own static refresh cycle.
>>
>> We need to tune this code path (if possible), eg. hand 'down' the fps
>> values.
>> Pls create a bug report - if you don't mind.
>
> Mostly out of curiosity (since I don't think I have enough knowledge to
> tackle this bug myself), what is the source code file in jogl where the
> framerate of the OSX CALayer could be controlled? At least I'd like to take
> a look, maybe some idea or suggestion will come up :-)
>
so possible to fix it w/o overall system knowledge.
Setup here:
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l127>
A note:
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l260>
SetSwapInterval (NOP with CALayer):
<http://jogamp.org/git/?p=jogl.git;a=blob;f=src/jogl/native/macosx/MacOSXWindowSystemInterface-pbuffer.m;hb=HEAD#l360>
If you know a way how to control the swap interval at least,
that would be great.
Technically the JOGL 'user' code provides a texture from
rendering into the pbuffer.
The CALayer renders the textures into
whatever the 'sink' is from it's own animation thread.
If we would have at least a vsync (swap interval),
we could sync rendering properly.
It's highly likely that I am missing something here.
~Sven
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