OpenBOR finally working fine on RETROPIE with ES

BiZzAr721

@darknior Maybe opengl4es will be able to benefit Residualvm as well

Salvador Liébana was one of the devs who got Diable & others running on Pi

darknior

@bizzar721 WOAW it's possible to play this game on PI ??????
We can also maybe play to "Return to the future" ???
Incredible, maybe it can help yes, if you have some informations, create an other discussion please and give the link here, i'm very interested, i'm a BIG fan of ScummVM too :p
Thanks

zanac

@darknior said in OpenBOR finally working fine on RETROPIE with ES:

@bizzar721 WOAW it's possible to play this game on PI ??????
We can also maybe play to "Return to the future" ???
Incredible, maybe it can help yes, if you have some informations, create an other discussion please and give the link here, i'm very interested, i'm a BIG fan of ScummVM too :p
Thanks

gl4es is just a wrapper that translate some "open gl" function to "open gl es 2", if you want to play 3d games you need that software use "open gl es 2" (gles2 for friends) natively!

About scummvm.... as i said it is possible to run it under libretro core, so it use gles2 natively using retroarch!!!
Just download: https://github.com/libretro/scummvm

After this just go to the folder "backends/platform/libretro/build" and type "make -j 4" :) It will compile (in about 7-8 hours!!!) a working core for allwinner/rasbperry!!!

For improve scummvm speed i suggest to hack the makefile and use neon+arm+cortex optimization... i use these:
TOOLSET = arm-linux-gnueabihf-
TARGET := $(TARGET_NAME)libretro.so
SHARED := -shared -Wl,--no-undefined
DEFINES += -fPIC -Wno-multichar -D_ARM_ASSEM
LDFLAGS += -shared -Wl,--version-script=../link.T -fPIC
CC = gcc
USE_VORBIS = 0
USE_THEORADEC = 0
USE_TREMOR = 1
HAVE_MT32EMU = 0
DEFINES += -marm -mcpu=cortex-a9 -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=hard -ffast-math -fomit-frame-pointer -O3
DEFINES += -mfloat-abi=hard
DEFINES += -DARM
HAVE_NEON = 1
DEFINES += -DSIZEOF_SIZE_T=4

If you want i can share the libretro_scummv.so core compiled in this way, it work very well i use it and is very great!!!

zanac

@zanac

new hint.... it seems that is better use -O2 for compile openbor!!!
just replace in makefile patch that i mae O3 with O2 : )

cyperghost

@zanac I would suggest to use sperate libGL for each game.

add Makefile

LIBRARIES       = ./lib

and create directory lib in OpenBOR dir and place libGL here

cyperghost

@cyperghost This is Василий Patch

Changelog:
added lib next to binary
added cflags, change from O3 to O2

Makefile

Makefile

ifdef BUILD_PANDORA
TARGET 	        = $(VERSION_NAME).elf
TARGET_FINAL    = $(VERSION_NAME)
TARGET_PLATFORM = PANDORA
BUILD_LINUX     = 1
BUILD_SDL       = 1
BUILD_GLES      = 1
BUILD_OPENGL    = 1
BUILD_LOADGL    = 1
BUILD_WEBM      = 1
BUILD_GFX       = 1
BUILD_PTHREAD   = 1
BUILD_SDL_IO    = 1
BUILD_TREMOR    = 1
BUILDING        = 1
CC  	        = gcc
INCLUDES        = $(PNDDEV)/include \
                  $(PNDDEV)/include/SDL
OBJTYPE         = elf
LIBRARIES       = ./lib
ifeq ($(BUILD_PANDORA), 0)
BUILD_DEBUG     = 1
endif
endif

...
...
ifdef BUILD_PANDORA
STRIP 	        = strip $(TARGET) -o $(TARGET_FINAL)
endif

...
...

CFLAGS 	       += $(addprefix -I", $(addsuffix ", $(INCS))) $(ARCHFLAGS) -D$(TARGET_PLATFORM)
CFLAGS 	       += -g -Wall -Werror -fsigned-char -std=gnu99
CFLAGS         += -marm -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=hard -fomit-frame-pointer -ffast-math -O2

...
...

ifdef BUILD_SDL
ifeq ($(findstring DGE, $(SDKPATH)), DGE)
LIBS           += -lSDL -lSDL_gfx -lts
else
LIBS           += -Wl,-rpath,$(LIBRARIES) -lSDL2 -lSDL2_gfx -lGL
endif
endif

sdl/opengl.c

// create an OpenGL compatibility context, not a core or ES context
#ifndef WIN // except on Windows, where some Nvidia drivers really don't like us doing this
//zanac, these attributes don't work well in allwinner (rasbperry too?)
//SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
#endif

    //zanac, it seems that you should always create a new context without delete the old one, this happen in allwinner (rasbperry too?)
    //if((context = SDL_GL_GetCurrentContext()))
    //      SDL_GL_DeleteContext(context);

BiZzAr721

@zanac said in OpenBOR finally working fine on RETROPIE with ES:

If you want i can share the libretro_scummv.so core compiled in this way, it work very well i use it and is very great!!!

I would love for you to share the libretro_scummv.so core. Although eventually, learning how to compile is something I want to learn how to do. Thanks

@darknior
Using residualVM from the experimental section I am able to play

Escape from Monkey Island
Grim Fandango
Myst 3

The pi takes a big hit running them, but they are playable
ResidualVM itself still has bugs

cyperghost

@bizzar721 Compiling we do here is provided by scripts. Makefile or CMakeList for example. These scripts tell the compiler the order of source files and on which mashine they build. So it's not really difficult to do... Sometimes programmes give hints which compiler flag do this and that.... also not difficult to implent (a bit more know how needed)

The stuff @zanac and @darknior have done is really advanced. You must understand how the code works and analyse options. For example @darknior patch makes use of function fileExists. You may think it's an ususal C-command, no... it's a functions that is nested into /source/utils.c. (A very common way to do check file availability... but other languages provide a command for this)

darknior

@zanac said in OpenBOR finally working fine on RETROPIE with ES:

If you want i can share the libretro_scummv.so core compiled in this way, it work very well i use it and is very great!!!

Yes thanks a lot, if you can share it, i will try it :)

zanac

@darknior said in OpenBOR finally working fine on RETROPIE with ES:

@zanac said in OpenBOR finally working fine on RETROPIE with ES:

If you want i can share the libretro_scummv.so core compiled in this way, it work very well i use it and is very great!!!

Yes thanks a lot, if you can share it, i will try it :)

here you are:
https://drive.google.com/open?id=1iuV9BUN4g8-aaf9DAPrmxG0s3dn0RDoR

For use in a game... i try to make an example. For example i have "Full Throttle" adventure, inside the game folder i place a "Full Throttle.scummvm" file, inside it you must just insert the "logical scummvm name", that is in this example "ft"

Here you can find a sort of "database" of scummvm files:
https://github.com/zanac/OpenPB4/blob/master/retroarch/cores/scummvm_libretro/scummvm-games.7z

p.s. excuse me for the OT, this is not openbor stuff i know!

BiZzAr721

@zanac Thank you for sharing.

cyperghost

@darknior said in OpenBOR finally working fine on RETROPIE with ES:

I must use 3400 for

Asterix & Obelix

Can't confirm it's working fine with latest releases.
md5: 41a9bdf651676f77c50307cf955ae2ad Asterix And Caesars Challenge.pak

darknior

@zanac Thanks a lot, really :D
I think it can be a really good idea to share your work on an other thread to make every one using ScummVM on LR.
It is really excellent !!!

Same i wish it will be same in a few time with Daphne for LR too :)

zanac

Sorry i have not time to follow a thread... anyway it's rather easy, i only tweak Makefile to add cortex/neon optimization on rasbperry, the source code of scummvm libretro work very weel on rpi/allwinner boards! :)

@darknior said in OpenBOR finally working fine on RETROPIE with ES:

@zanac Thanks a lot, really :D
I think it can be a really good idea to share your work on an other thread to make every one using ScummVM on LR.
It is really excellent !!!

Same i wish it will be same in a few time with Daphne for LR too :)

cyperghost

Hello @zanac,

I've collected all patch into a Openbor for Raspberry GIT ....
We have patches: Anna, Boris, Wassili next patch will be Galina. I hope @darknior can make this work and we have CLI for PAKs ;)

darknior

@cyperghost said in OpenBOR finally working fine on RETROPIE with ES:

I hope @darknior can make this work and we have CLI for PAKs

I don't understand ? You want i patch your OpenBOR version ?
Why don't you had my patch directly ?

cyperghost

@darknior Lack of time ;) Just fork the repo
Use patch -p0 -i patchfile.patch to patch and patch -p0 -R -i patchfile.patch to revert patches.

So a working example would be patch -p0 -i ./patch/3-Wassili.diff

Every patch is mode from original version. So patch #3 is the same version is I offer as download in openbor openbeta thread.

BiZzAr721

Now that I got all my .bor back in .pak format, I tried the 3400 build and everything is working great.
All we need is CLI patch and we're golden! @darknior

I came across this post which lists a huge amount mods with version & compatable builds. It's pretty overwhelming the different amount of builds. It seems like build 4086 is very popular build.

cyperghost

@bizzar721 Thanks for this list. I am still on business and have no time for do anything for open or ;( So I hope @darknior can help ;)

darknior

@bizzar721 said in OpenBOR finally working fine on RETROPIE with ES:

I came across this post which lists a huge amount mods with version & compatable builds. It's pretty overwhelming the different amount of builds. It seems like build 4086 is very popular build.

Thanks a lot for this list, for sure it can help a lot, i don't have the OpenBOR version of all my mods :p
Like that now we know if one mod not working, what engine build we need to make it working :)
For my part i don't have time and experience for the moment to update games mod to work with the last OpenBOR engine version ... but it is the best way...