Adding OpenMSX to EmulationStation

[GNF]

Yesterday I tried adding OpenMSX to EmulationStation. I am using the Ubuntu 20.04 image that comes bundled with EmulationStation. But I'm stuck. Some help would be appreciated.

This is what I did up til now:

1. I ssh-ed to the Odroid Go Advance, installed nano and openmsx with "sudo apt-get install openmsx".
So far so good. openmsx seems to get added to the /bin folder. To do: move it to it's own folder in /opt

sudo apt list --installed shows two new entries:

Code: Select all

openmsx-data/focal,focal,now 0.15.0-2ubuntu2 all [installed,automatic]
openmsx/focal,now 0.15.0-2ubuntu2 arm64 [installed]

2. I added an msx folder to the /roms folder and chown-ed and chmod-ed it.
Created subfolders:
/roms/msx/games
/roms/msx/bios
An then copied DISK.ROM MSX2.ROM MSX2EXT.ROM to /roms/msx/bios to use for minmal a config of an MSX-2.
Copied some .ROM MSX-1 and MSX-2 games to the folder /roms/msx/games

3. Then I edited /etc/emulationstation/es_sytems.cfg using nano as an editor and added an extra emulator.

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<system>
   <name>msx</name>
   <fullname>MSX</fullname>
   <path>/roms/msx/games/</path>
   <extension>.rom</extension>
   <command>/bin/openmsx -cart %ROM%</command>
   <platform>msx</platform>
   <theme>msx</theme>
</system>

Turns out that the theme for MSX on ES is already in the folder /etc/emulationstation/themes/es-theme-simple so I didn't have to create my own.

4. Rebooted the system and behold the MSX-logo appeared in the menu. and I was able to select roms. Great!

5. Tried to start some roms. No luck. They display a black screen and then return to ES. There's no MSX startup logo.

6. Found that there is an hidden folder in /home/odroid called .openMSX. It contains to folders persistent and share.
The persistent folder contains two subfolders:
~/.openMSX/persistent/C-BIOS_MSX2+/untitled1/cbios-msx2+.cmos
This file either came with the apt-get install or was created on first run of OpenMSX since I did't put it there.
~/.openMSX/persistent/console
This directory is empty.

Note: when you start openMSX with the machine switch e.g. -machine Philips_NSM_8255 a new subfolder gets created here ( ~/.openMSX/persistent) with the name of the machine. It will contain untidled1 subfolder containing a machine.cmos file.
All good to know. But it doesn't solve my problems.

The share folder contains a file setiings.xml. I think this was in it:

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<!DOCTYPE settings SYSTEM 'settings.dtd'>
<settings>
  <settings>
    <setting id="renderer">SDL</setting>
  </settings>
  <bindings/>
</settings>

Restarted ES. No luck in starting roms.

Then I changed settings.xml into this:

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<!DOCTYPE settings SYSTEM 'settings.dtd'>
<settings>
  <settings>
    <setting id="scale_factor">1</setting>
    <setting id="fullscreen">true</setting>
    <setting id="default_machine">Philips_NMS_8255</setting>
    <setting id="renderer">SDL</setting>
  </settings>
  <bindings/>
</settings>

And then added subdirs
~/.openMSX/share/extensions
~/.openMSX/share/machines
~/.openMSX/share/systemroms
And copied my extension collection, my machines collection (containing a Philips_NMS_8255 profile) and my systemroms collection to those folders.

Restarted ES. Still no luck.

7. Tried starting openmsx --help from commandline.
It doesn't crash. Displays the help options. So it's alive and doing something. I think the problem is with the SDL-renderer. So I lookup the options in the openmsx usermanual and found an option for alternative SDL renderer called SDLGL_PP. Then I changed settings.xml into this:

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<!DOCTYPE settings SYSTEM 'settings.dtd'>
<settings>
  <settings>
    <setting id="scale_factor">1</setting>
    <setting id="fullscreen">true</setting>
    <setting id="default_machine">Philips_NMS_8255</setting>
    <setting id="renderer">SDLGL_PP</setting>
  </settings>
  <bindings/>
</settings>

Still no luck getting OpenMSX to run from ES.

8. I tried apt-get installing libsdl. Still no luck.

9. Run openmsx form cli gives the error:
"Uncaught exception: SDL video init failed: Unable to memory map the video hardware (and I have no otherideas to try...)"

So now I'm out of options. Anybody have any ideas on how to get OpenMSX running out of the box?

If not the next step would be to recompile openmsx and instead of using SDL getting it to play nice with libgo2. But I wouldn't know where to start.
First get openmsx sources from github. Get it to compile. Alter stuff. Try again?

Any tips would be greatly appreciated.

GNF

[crashoverride]

You can try compiling SDL for GO-Advance (note the use of the 'tearing' branch):
https://github.com/OtherCrashOverride/s ... ee/tearing

See also:
viewtopic.php?f=194&t=38045

Alternatively, you can try using the libretro blueMSX core. See the /etc/emulationstation/es_systems.cfg for "retrorun" examples.
https://github.com/libretro/blueMSX-libretro

[GNF]

You can try compiling SDL for GO-Advance (note the use of the 'tearing' branch):
https://github.com/OtherCrashOverride/s ... ee/tearing

Thanx! I'll give it a go.

See also:
viewtopic.php?f=194&t=38045

Yes. I read this. But suspected the example install was for debian, not ubuntu. Might break or brick my setup.

Alternatively, you can try using the libretro blueMSX core. See the /etc/emulationstation/es_systems.cfg for "retrorun" examples.
https://github.com/libretro/blueMSX-libretro

BlueMSX is a great emulator, but I need OpenMSX for Graphics 9000 development. The Graphics 9000 is an obscure graphics card for MSX that only OpenMSX emulates. It's VDP is a Yamaha V9990 chip. I think there are about 10-15 MSX games that actually use it.

Thanx for the pointers!

GNF

[trngaje]

how do you get openmsx?
source is in https://openmsx.org/
you can build it by yourself.

openmsx is good emulator for oga because oga has many function buttons.

if you have a problem in sdl library, i think that you need to check where is library.

my openmsx depends following libraries (if you want to play roms with openmsx in ES, you need using sdl2 instead of sdl)

Dynamic section at offset 0x629640 contains 43 entries:
Tag Type Name/Value
0x0000000000000001 (NEEDED) Shared library: [libz.so.1]
0x0000000000000001 (NEEDED) Shared library: [libGLEW.so.2.1]
0x0000000000000001 (NEEDED) Shared library: [libvorbis.so.0]
0x0000000000000001 (NEEDED) Shared library: [libpng16.so.16]
0x0000000000000001 (NEEDED) Shared library: [libGL.so.1]
0x0000000000000001 (NEEDED) Shared library: [libtcl8.6.so]
0x0000000000000001 (NEEDED) Shared library: [libasound.so.2]
0x0000000000000001 (NEEDED) Shared library: [libSDL2_ttf-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libSDL2-2.0.so.0]
0x0000000000000001 (NEEDED) Shared library: [libtheoradec.so.1]
0x0000000000000001 (NEEDED) Shared library: [libogg.so.0]
0x0000000000000001 (NEEDED) Shared library: [libstdc++.so.6]
0x0000000000000001 (NEEDED) Shared library: [libm.so.6]
0x0000000000000001 (NEEDED) Shared library: [libgcc_s.so.1]
0x0000000000000001 (NEEDED) Shared library: [libpthread.so.0]
0x0000000000000001 (NEEDED) Shared library: [libc.so.6]
0x0000000000000001 (NEEDED) Shared library: [ld-linux-aarch64.so.1]

[GNF]

if you have a problem in sdl library, i think that you need to check where is library.

@trngaje: Great work! But... I've got so many questions:

1. On which OGA image/version did you get OpenMSx to compile? Ubuntu 20.04 with ES?
2. Which version of OpenMSX are you running? Did you download the latest version from GitHub?
3. Which renderer are you using in OpenMSX? SDL or SDLGL-PP? What does your share/settings.xml file look like?
4. Are you using the SDL2 library built on your Odroid GO Advance like crashoverride mentioned in his post? Could you post the output of your SDL configure summary?
5. How did you start OpenMSX when connected to the OGA through SSH? Did you use export DISPLAY=:0 or did you add it to - and start it from to the ES menu?
6. What did you set the env var SDL_VIDEODRIVER to?

A lot of questions. But I'm stuck again
I built SDL2 but still can't get it to work with the apt-get-ed version 0.15. Will try to compile it myself.

Best regards,

GNF

[trngaje]

1. built in uuntu 19.04 and confirmed that ubuntu 20.04 and debian buster were working well.
2. https://github.com/openMSX/openMSX.git
3. SDL : this is default
include : settings.xml

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<!DOCTYPE settings SYSTEM 'settings.dtd'>
<settings>
  <settings>
    <setting id="renderer">SDL</setting>
    <setting id="invalid_psg_directions_callback">psgdirectioncallback</setting>
    <setting id="invalid_ppi_mode_callback">ppimodecallback</setting>
    <setting id="di_halt_callback">dihaltcallback</setting>
    <setting id="default_machine">Panasonic_FS-A1GT</setting>
    <setting id="joystick1_config">LEFT {-axis0 L_hat0 button8} RIGHT {+axis0 R_hat0 button9} UP {-axis1 U_hat0 button6} DOWN {+axis1 D_hat0 button7} A button0 B button1</setting>
    <setting id="fullscreen">true</setting>
    <setting id="master_volume">100</setting>
    <setting id="scale_algorithm">hqlite</setting>
    <setting id="maxframeskip">2</setting>
    <setting id="horizontal_stretch">256.0</setting>
    <setting id="osd_rom_path">/roms/msx</setting>
  </settings>
  <bindings>
    <bind key="joy1 button15 down">main_menu_toggle</bind>
    <bind key="joy1 button10 down">keymatrixdown 6 0x20</bind>
    <bind key="joy1 button10 up">keymatrixup 6 0x20</bind>
    <bind key="joy1 button11 down">keymatrixdown 6 0x40</bind>
    <bind key="joy1 button11 up">keymatrixup 6 0x40</bind>
    <bind key="joy1 button12 down">keymatrixdown 6 0x80</bind>
    <bind key="joy1 button12 up">keymatrixup 6 0x80</bind>
    <bind key="joy1 button13 down">keymatrixdown 7 0x01</bind>
    <bind key="joy1 button13 up">keymatrixup 7 0x01</bind>
    <bind key="joy1 button14 down">keymatrixdown 7 0x02</bind>
    <bind key="joy1 button14 up">keymatrixup 7 0x02</bind>
    <bind key="joy1 button3 down">keymatrixdown 6 0x04</bind>
    <bind key="joy1 button3 up">keymatrixup 6 0x04</bind>
    <bind key="joy1 button2 down">keymatrixdown 7 0x10</bind>
    <bind key="joy1 button2 up">keymatrixup 7 0x10</bind>
    <bind key="joy1 button4 down">toggle_osd_keyboard</bind>
  </bindings>
</settings>

4.- libSDL2-2.0.so.0.10.0 (installed by default in ubuntu 20.04)
- The 12 version SDL, which built the source directly, has also been checked for normal operation.
5. in ssh : just ./openmsx, i don't use export DISPLAY=:0 because no using x11.
6. -i don't know what you mean. i don't use SDL_VIDEODRIVER environment variable.

Additionally, the image in the path below already contains openmsx.
Although it is hard to recommend it because it is written in Korean, please refer to it.

https://cafe.naver.com/raspigamer/36473
https://drive.google.com/file/d/1Coz44j ... d_facebook

[GNF]

It took me while but finally I managed to compile OpenMSX and crashoverride's SDL2 with kmsdrm support on the OGA itself using the Ubuntu 20.04 OGA image with some warnings but without compilation or linking errors. OpenMSX has a lot of dependencies though. The minimalistic Ubuntu 20.04 OGA image is now bloated and stuffed with dependent packages needed to compile.

I had to use some tricks like adding a swap file because it had to little memory to compile, and hacking the files from libmali-rk-bifrost-g31-rxp0-gbm_1.7-1+deb10_arm64.deb directly into the OGA because of package conflicts with files in packages that were already in the image. Removing those packages using apt would have also removed some dependencies like EmulationStation and lots of other OGA speciifc stuff so I opted for a nasty copy as root instead.

Also applied the fix https://bugzilla-attachments.libsdl.org ... gi?id=4237 to get the buttons to work. But now it seams to ignore OpenMSX settings.xml.
I still see tearing when the MSX-logo appears so will look into also applying this patch https://bugzilla-attachments.libsdl.org ... gi?id=4198.

Now I can play MSX-1, MSX-2 and MSX-2+ games, but only with some default joystick mapping and no exit button mapped so I have to reset after playing a game.

I think I'm almost there. But it was a bit of a hassle.
Documented everything so will try to reproduce using a clean image with as little steps possible and fix the mapping problem.

Thanx for the help. I learned a lot.

GNF

[trngaje]

I was worried that you might be giving up on this problem.
An additional swap buffer is required to compile openmsx.
Openmsx requires a variety of multickeys, but lacks a function key.
You can implement the necessary multickeys using xboxdrv.
(ex, exit, show menu)
You must replace the kernel that does not move from the menu or virtual keyboard to dpad with the hat mode instead of the button value.