Go to advanced search

by 7F20
Sat Apr 04, 2015 5:54 am
Forum: Gaming
Topic: compiling dosbox with dynamic recompilation support
Replies: 23
Views: 13037

Re: compiling dosbox with dynamic recompilation support

RetroPie has a single sdl library with code based on vanfanel's sdl dispmanx but also with standard fbcon support and other fixes. So you can decide if you want tear free, but blocking dispmanx or framebuffer. dosbox works fine with the fbcon driver though, so use that. Performance will be worse wi...
by 7F20
Fri Apr 03, 2015 5:39 pm
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

EDIT: please activate the Aspect Ratio Correction option. It should work. So, I tried this and it didn't seem to help. I am not sure if you meant the aspect option in scummvm, or just in config.txt, so i just tried both and I also tried them each independently. Also, I was a little confused in scum...
by 7F20
Thu Apr 02, 2015 5:15 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

EDIT: please activate the Aspect Ratio Correction option. It should work. So, I tried this and it didn't seem to help. I am not sure if you meant the aspect option in scummvm, or just in config.txt, so i just tried both and I also tried them each independently. Also, I was a little confused in scum...
by 7F20
Tue Mar 31, 2015 3:46 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

Ok, thanks Vanfanel for the reply!

That makes sense, I never messed with the aspect settting at all. I just assumed that the pi was figuring it out by itself. :)

Thanks for the explanation AndyD of the frame buffer, it is making more sense now.

I'll report back once I've had a chance to try it.
by 7F20
Mon Mar 30, 2015 3:56 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

You need the dev libraries. You only have the runtime libraries installed. Ahh. One more question here. I am now trying to get this running on composite, and no matter what I try, the edges appears to be cut off. This is happening on 3 different composite monitors. I think it has something to do wi...
by 7F20
Sun Mar 29, 2015 2:10 am
Forum: Gaming
Topic: compiling dosbox with dynamic recompilation support
Replies: 23
Views: 13037

Re: compiling dosbox with dynamic recompilation support

RetroPie has a single sdl library with code based on vanfanel's sdl dispmanx but also with standard fbcon support and other fixes. So you can decide if you want tear free, but blocking dispmanx or framebuffer. dosbox works fine with the fbcon driver though, so use that. Performance will be worse wi...
by 7F20
Sun Mar 29, 2015 2:03 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

it is a little bit milky looking in terms of the graphics, maybe and odd combo with the particular monitor that i am using. It may be the way the graphics are up-scaled. You can change the scaling to nearest neighbor in config.txt, to get that more retro blocky look. See this thread (and the links ...
by 7F20
Sun Mar 29, 2015 1:49 am
Forum: Troubleshooting
Topic: Specific HDMI AUDIO ISSUE
Replies: 2
Views: 616

Re: Specific HDMI AUDIO ISSUE

Ah. maybe that would work, but i think it's too expensive for an inconclusive solution, perhaps even for a conclusive one. I suppose I can route the sound over the 3.5mm jack separately to the amp that runs the speakers. I was hoping there was some software workaround to enable it, but oh well. So f...
by 7F20
Sat Mar 28, 2015 8:28 pm
Forum: Troubleshooting
Topic: Specific HDMI AUDIO ISSUE
Replies: 2
Views: 616

Specific HDMI AUDIO ISSUE

Hello, I have a projector that has an HDMI input, but I am having this problem with getting sound: "Secondly, it seems that some HD TVs mute audible sound output when there is only one channel of digital input. So, as the file Front_Center.wav is mono, it might not be heard. ALSA aplay uses the file...
by 7F20
Sat Mar 28, 2015 6:46 pm
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

You need the dev libraries. You only have the runtime libraries installed. Thank you Vanfanel! I got it running! results very smooth! it is a little bit milky looking in terms of the graphics, maybe and odd combo with the particular monitor that i am using. Super happy to get it going though. :) Ma...
by 7F20
Sat Mar 28, 2015 4:19 pm
Forum: Gaming
Topic: compiling dosbox with dynamic recompilation support
Replies: 23
Views: 13037

Re: compiling dosbox with dynamic recompilation support

no sorry - maybe with a full log it might shed some light. If you don't want the hassle of compiling, you can use RetroPie script to install individual emulators to the system from binary (or source). will RetroPie give me the faster performance? It is a little frustrating, but I want to learn. I a...
by 7F20
Sat Mar 28, 2015 6:13 am
Forum: Gaming
Topic: compiling dosbox with dynamic recompilation support
Replies: 23
Views: 13037

Re: compiling dosbox with dynamic recompilation support

Hi, I'm having no luck at all getting stuff to run. I tried scummvm, and I can't get it to compile, then I tried ripx86 and it works, but it seems choppy and the sound is broken and weird. So then I tried to compile this and I got Makefile:310 recipe for target 'callback.o' failed, 330:'all-recursiv...
by 7F20
Sat Mar 28, 2015 4:31 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

So this is what I am getting, when it gets to this line: C++ audio/deccoders/flac.o audio/decoders/flac.ccp:38:25: fatal error: FLAC/export.h: No such file or directory compilation terminated Makefile.common:103: recipe for target 'audio/decoders/flac.o' failed make:*** [audio/decoders/flac.o] Error1
by 7F20
Sat Mar 28, 2015 2:52 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

Akk. now it won't even make.
It fails at FLAC. says it can't find audio/decoders/flac.o or something such that the Makefile.common is trying to do.
I have flac on the pi, I installed it already sudo apt-get install flac, and it shows up when the config runs.

Any thoughts?
by 7F20
Sat Mar 28, 2015 12:48 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

7F20 Software scalers in scummvm wont play well with the Dispmanx build. The whole idea of using dispmanx is it allows the raspberrys video hardware to scale the image instead of using the software scalers. This gives a significant performance boost as your CPU isnt tied up enlarging images Ok, I g...
by 7F20
Fri Mar 27, 2015 4:16 am
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

Hi, I compiled from Vanfanel's scummvm from this post, etc and I got weird results. It runs, but only under X, and it doesn't seem to be scaling properly. It will go fullscreen, but the scaler only makes it somewhat larger, not even close to filling the screen. Some scalers will only double the size...
by 7F20
Wed Mar 25, 2015 7:56 pm
Forum: Gaming
Topic: Scummvm DISPMANX for Raspberry Pi
Replies: 56
Views: 9330

Re: Scummvm DISPMANX for Raspberry Pi

I've updated instructions on this. GLES is *not* the optimal backend to use for Scummvm on the Pi, so I've added a DispmanX (native 2D API) backend with advanced non-blocking vsync double-buffered video, which shows incredible results for low cpu usage and smoothness. Also added cross-compilation i...
by 7F20
Wed Nov 28, 2012 3:41 am
Forum: Gaming
Topic: DOS Emulator / Limiting the CPU?
Replies: 26
Views: 9673

Re: DOS Emulator / Limiting the CPU?

Having the source code of the driver won't change anything to the situation. I don't really see how DOSBox can make any meaningful use of the GPU, aside from applying some filters to the final image once it's been generated on the CPU. Well, that sucks. I don't have the answer either, but hopefully...
by 7F20
Mon Nov 19, 2012 3:26 am
Forum: Gaming
Topic: DOS Emulator / Limiting the CPU?
Replies: 26
Views: 9673

Re: DOS Emulator / Limiting the CPU?

In any case, I think that tapping the GPU is the key to reasonable dosbox performance, and from what I understood, progress in that has been held up because Broadcom did not initially release their source code, which they just have, for the GPU. That's not correct. You don't need the driver's sourc...
by 7F20
Fri Nov 02, 2012 1:46 am
Forum: Gaming
Topic: DOS Emulator / Limiting the CPU?
Replies: 26
Views: 9673

Re: DOS Emulator / Limiting the CPU?

In the first place, forgive me for my strange english. I don't get the point: GPU speeding up DosBOX emulation? How is that going to help? I see no way GPU can speed up x86 CPU, soundblaster or VGA emulation. All I can see is GPU being able to scale low-res graphics output into the final display: j...
by 7F20
Sat Oct 27, 2012 1:51 am
Forum: Gaming
Topic: Old games running on the Raspberry Pi
Replies: 17
Views: 15996

Re: Old games running on the Raspberry Pi

More likely that there are a fair number of older gamers who remember what they used to play that are also Pi enthusiasts. Well, you can certainly count me in there - but I haven't been here over a thousand times. My vote is for Ultima Underworld (1 and 2) - anyone tried those in DOSBOX yet? (Mods-...
by 7F20
Sat Oct 27, 2012 1:39 am
Forum: Gaming
Topic: DOS Emulator / Limiting the CPU?
Replies: 26
Views: 9673

Re: DOS Emulator / Limiting the CPU?

The solution to the Dosbox Performance Problem is definitely getting the GPU in on it. The only path with which Dosbox can currently interact with the Pi hardware is through SDL, which is currently only running in software on the CPU side of things. I am hoping that the recent announcement about Bro...
by 7F20
Mon Sep 24, 2012 11:12 pm
Forum: Troubleshooting
Topic: DOSBox doesn't work properly
Replies: 45
Views: 14827

Re: DOSBox doesn't work properly

Please list specific troubleshooting steps that you went through in you "lengthy experiments." I believe that all of the folks working on this issue have experimented by trying different games in and out of console, and are clearly experiencing some differences in the performance. If you have some n...
by 7F20
Wed Sep 12, 2012 6:56 pm
Forum: Troubleshooting
Topic: DOSBox doesn't work properly
Replies: 45
Views: 14827

Re: DOSBox doesn't work properly

For two days I found that running DOSBox from the console produced a garbled keyboard (in most cases a keypress would produce the result equivalent to subtracting 8 units from the ANSI code!). That's very interesting, I've always had the exact opposite problem where running it from LXDE had it work...
by 7F20
Wed Aug 22, 2012 7:09 pm
Forum: Troubleshooting
Topic: DOSBox doesn't work properly
Replies: 45
Views: 14827

Re: DOSBox doesn't work properly

This is just random conjecture based on what you're describing, but perhaps dosbox requires a certain minimum resolution? Or that there's something in the config that tries to set the framebuffer too high? (well I say config, but I don't necessarily mean the user accessible conf file ;-)) Well, I h...

Go to advanced search