Slow frame rate? (2 Viewers)

[Stéphane Lenclud]

Bandwidth would only be an issue if we keept uploading textures in VRAM, hopefully we don't do things like that when sitting on home screen. Once home screen textures are uploaded redrawing should use little bandwidth.

 

[morpheus_xx]

If you like to take a look yourself, I can point you to some important parts:

• Main render loop: https://github.com/MediaPortal/Medi...ource/UI/SkinEngine/GUI/MainForm.cs#L373-L400
• GraphicDevices renders on DX level: https://github.com/MediaPortal/Medi...kinEngine/DirectX/GraphicsDevice.cs#L585-L634 (Note: the different render pipelines are mainly meant for 3D modes like SideBySide or TopAndBottom)
• Assest (Textures, effects etc...) are handled by classes https://github.com/MediaPortal/Medi...Portal/Source/UI/SkinEngine/ContentManagement

Any help is very appreciated! Maybe we can tweak the rendering with your help.

 

[Stéphane Lenclud]

Cool stuff, thanks for the pointers... Not sure if and when I will have time to dive into that but that's really interresting.

 

[Stéphane Lenclud]

Are you saying that many of the guys who implemented core parts of MP2 are no longer working on the project?

I am just tying to understand better the state of the MP2 project.

Was it ever considered to try and make MP2 core features multiplatform using Mono and OpenGL?

 

[morpheus_xx]

Are you saying that many of the guys who implemented core parts of MP2 are no longer working on the project?

Yes, unfortunately. It's the same with MP1 and probably in all other Open Source projects, devs come and leave.

Was it ever considered to try and make MP2 core features multiplatform using Mono and OpenGL?

Oh yes, there were requests coming again and again But there are many reasons why we can't do this easily, starting with DX dependency for SkinEngine (this could be exchanged in theory!), DirectShow for video playback, TV is depending completely on Windows components (BDA,...) etc,etc. This means a technology switch is nothing we can do.

So what would help us directly now is someone who can help tweaking the existing platform. Someone who knows how shaders (HLSL) and function pipelines are working. I.e. we really would need a "DropShadow" effect for SkinEngine, or a fix for using vector based OpacityMasks (example: using a rectangle with rounded corners as mask).

 

[Lehmden]

Hi.

Was it ever considered to try and make MP2 core features multiplatform using Mono and OpenGL?

Our Team is too small for such amount of work, I fear. Also I really would LOVE to see MP2 working on Linux, Android, MacOS,... MP is the major reason for me to stay on Windows OS atm (other reason is Photoshop as Gimp simply isn't enough for my needs)... After the disastrous Windows 8 and with Windows 10 being the last Windows ever I think it's time to change my main OS sooner or later.

 

[mm1352000]

TV is depending completely on Windows components (BDA,...)

Note that the way I've refactored the TV library, it would be not too hard to swap out a few classes and get rid of most of the BDA dependencies. They'd be replaced with v4l/dvb. The real issue then would be the DirectShow dependency - in particular TsWriter, TsMuxer, the IPTV source and the streaming server.

 

[morpheus_xx]

Cool stuff, thanks for the pointers... Not sure if and when I will have time to dive into that but that's really interresting.

Did you find some time to look into SkinEngine and DX/Shader stuff?

 

[Stéphane Lenclud]

I'm afraid not. I have not even cloned the MP2 repository. I'll probably be working some more on MP1 MiniDisplay before I get around cloning MP2

We are talking months or years here... But who knows.
I'm quite good at GLSL but I never used that DX variant. Should be very similar though.

 

[kilik360]

It appears that MP2 has difficulty to return to the original GUI RefreshRate(renderer) after video playback. Even if RefreshRateChanger is OFF

Step to reproduce:

• Start MP2 at 59hz in my case
• Play a Music Video till the end(RefreshRate stays at 59hz)
• MP2 GUI reappear but laggy as hell

I don't have this behavior if I stop the video myself. Only when MP2 plays it through the end. I'll post logs later today.