Who's the 1? I never voted so i can't seeIgro wrote:So what we have for now: 8 vs 1.
8 persons have problems with GUI.
I have issues with the Browser but that's about it.. ThanksHi Rob,
(please forward this text to the KVR forum and maybe to our user-forum, if you like)
It's not a bug so there is no "fix". It's a performance problem obviously depending on some components of the PC in question.
The reason is that I chose a Windows functionality Microsoft developed a couple of years ago and introduced in Windows XP called GDI+. This GDI+ was supposed to replace GDI, which was good since GDI is really outdated and misses a great lot of functionality Largo needs to display its GUI.
Microsoft made the more or less wise decision to perform the GDI+ functions completely in software and ultimatively sending the resulting bitmap to the graphics accelerator. Wise in that that was what Apple always did with their QuickDraw and Quartz 2D and which served them well for more than 20 years.
However, as it looks, Microsoft were (and are) still not able to achieve even a good percentage of the performance Apple was able to get out of their routines. It sometimes feels as if some routines are written in Visual Basic or Java rather than well-optimized C or assembly code that might use features of the CPU to some extent. So, they extended GDI+ to use hardware acceleration in Vista SP2 and Windows 7, which was again wise (if you can compare graphic speeds between XP and Vista or W7 on your various systems, please tell me the results). Apple also switched to hardware acceleration of their drawing stuff starting in 10.4 with Quartz Extreme.
Now, for Windows 7, Microsoft developed a completely new set of functions to achieve faster graphics performance called Direct2D. This new package is also available for Vista but not for Windows XP. And, because it tries to be as performant as possible, its functionality is very different from GDI or GDI+. So, this would mean a major rewrite of the graphic stuff of Largo while still maintaining the GDI+ code to make sure it not only runs on W7 and properly updated Vista installations but also on XP, which is still one of the most popular "DAW operating systems".
So, my choices are:
* Switch back to GDI. Not good for Vista and Windows 7 since GDI is now routed to GDI+ internally and probably has the same performance problems there. Good for Windows XP, though.
* Switch to Direct2D. Lots of work and renders Largo incompatible to Windows XP. Would mean I have to maintain two completely different graphic engines to assure XP compatibility.
* Switch to OpenGL. Very performant for 3D graphics but quite unsuited for 2D graphics. I *could* find my way through it but it would probably be a very inefficient method of rendering a GUI like Largo's.
* Switch to a completely different graphic framework. There are a couple of interesting frameworks out there but since implementing one or the other of them into Largo just to make some benchmarks takes a lot of time, I couldn't start doing so yet. Those graphic frameworks very often also render the graphics purely in software, but it looks like their developers programmed a "bit" more optimized for speed than Microsoft.
All in all, I'm a bit stuck right now. I am aware of the graphic performance problem on some Windows machines but right now I don't have the time to work on a major rewrite of the graphic stuff. I can only tell you that it has the highest priority on my list and I will take care of it in the near future.
The poll is interesting but it would probably be more helpful to know the computer configurations as well, i.e. CPU and GPU type, and RAM. I developped and tested Largo on a MacBook Pro with ATI Radeon X1600. I did notice that graphics is considerably slower with Windows XP (booted natively with BootCamp) than with Mac OS X but no CPU spikes here. It might only happen with NVIDIA graphic accelerators, don't know, though.
But, as I said, I will work it out, but cannot do so right now. I hope you have patience and I apologize for the inconvenience.
If you have helpful comments that could help me making a decision which graphics framework to use, drop me a mail on wolfram/at/franke/dot/net or wmf/at/waldorfmusic/dot/de.
Best wishes,
Wolfram
Well it works mostly fine on my system and as Wolfram states if you email him your *exact* configuration he will be happy to help.ekeaze wrote:Hmmm... uffff...
What we can do NOW ? Waiting when they have time for FIX
May be it will be better if they will sell it only fro MAC OS not for Windows !
Ok I will try it return back to shop. I absolutly uderstand why other VSTi works and Largo NOT. I think it is fatal error when they program it..
Hiekeaze wrote:I send my specifications yesterday...
Its strange why other plugins works on all diferent OS normaly...
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