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    lr-duckstation - Experimental new PlayStation 1 emulator

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    duckstation lr-duckstation playstation psx ps1
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    • stooS
      stoo @dankcushions
      last edited by stoo

      @dankcushions I've tested a handful of games on the Pi4 (arm 2000/v3d 700) and found:

      OpenGL
      All tested games seem to run full speed at 1x native with or without PGXP enhancements tested more and it seems PGXP can cause slowdown in certain scenes. It's not terrible, but it's definitely there.
      1x native with any form of antialiasing introduces slowdown in certain scenes, with or without PGXP.
      2x native and higher introduces slowdown
      Some of the time the emulator fails to initialise the OpenGL renderer, simply trying a second time with identical settings seems to fix it.

      Vulkan
      AFAIK, Vulkan is not officially available in RetroPie yet, at least on RPi platforms.
      [ERROR] Requesting Vulkan context, but RetroArch is not compiled against Vulkan. Cannot use HW context.

      Software
      Everything seems to run full speed.
      Scaling, antialiasing and PGXP are not available in software.

      dankcushionsD 1 Reply Last reply Reply Quote 1
      • stooS
        stoo @MrPacMan17
        last edited by

        @mrpacman17 Turn on logging in retroarch and post that log. Settings - Logging - Log to file.

        Logs should appear here:

        /opt/retropie/configs/all/retroarch/logs

        MrPacMan17M 1 Reply Last reply Reply Quote 1
        • dankcushionsD
          dankcushions Global Moderator @MrPacMan17
          last edited by

          @mrpacman17 can you please show your config files:
          /opt/retropie/configs/all/retroarch.cfg
          /opt/retropie/configs/psx/retroarch.cfg

          MrPacMan17M 1 Reply Last reply Reply Quote 1
          • dankcushionsD
            dankcushions Global Moderator @stoo
            last edited by

            @stoo said in lr-duckstation - Experimental new PlayStation 1 emulator:

            Vulkan
            AFAIK, Vulkan is not officially available in RetroPie yet, at least on RPi platforms.
            [ERROR] Requesting Vulkan context, but RetroArch is not compiled against Vulkan. Cannot use HW context.

            that's right - it's nether included in raspi pi OS yet, nor does retropie compile retroarch for vulkan on pi platforms

            1 Reply Last reply Reply Quote 1
            • MrPacMan17M
              MrPacMan17 @dankcushions
              last edited by

              @dankcushions Hi there.

              See here: From ALL folder: https://pastebin.com/VAHGAUQk
              From PSX folder: https://pastebin.com/yJqykEM0

              Cheers,
              Marnix

              dankcushionsD 1 Reply Last reply Reply Quote 1
              • MrPacMan17M
                MrPacMan17 @stoo
                last edited by

                @stoo Hi there. Thanks a lot for your efforts, much appreciated. Please see here: https://pastebin.com/mNe4uETa

                1 Reply Last reply Reply Quote 1
                • dankcushionsD
                  dankcushions Global Moderator @MrPacMan17
                  last edited by

                  @mrpacman17 said in lr-duckstation - Experimental new PlayStation 1 emulator:

                  @dankcushions Hi there.

                  See here: From ALL folder: https://pastebin.com/VAHGAUQk

                  this is a non-default config, unfortunately. i would reset it by updating retroarch, which will generate a retroarch.cfg.rp-dist default file in th same folder. delete/rename your old retroarch.cfg and then rename retroarch.cfg.rp-dist to retroarch.cfg

                  that said, the line i was curious about is

                  video_driver = "gl"

                  try instead with

                  video_driver = "glcore"

                  From PSX folder: https://pastebin.com/yJqykEM0

                  looks fine

                  MrPacMan17M 2 Replies Last reply Reply Quote 1
                  • MrPacMan17M
                    MrPacMan17 @dankcushions
                    last edited by

                    @dankcushions Thank you, will do as advised. Many thanks again for your hard work and time.

                    1 Reply Last reply Reply Quote 2
                    • MrPacMan17M
                      MrPacMan17 @dankcushions
                      last edited by

                      @dankcushions I did as requested. The file is default now and I changed the videodriver to glcore as requested. But the issue persists, see Runcommand log: https://pastebin.com/YcmcpvLM

                      mituM dankcushionsD 2 Replies Last reply Reply Quote 1
                      • mituM
                        mitu Global Moderator @MrPacMan17
                        last edited by

                        @mrpacman17 glcore is not supported on a Pi4. Use gl as the video driver. Also, RetroPie doesn't support running it in a desktop session on a Pi, you should run it outside the desktop environment.

                        MrPacMan17M 1 Reply Last reply Reply Quote 1
                        • MrPacMan17M
                          MrPacMan17 @mitu
                          last edited by

                          @mitu I am running Xubuntu on an HP laptop (ProBook 6550B). I did as adviced but still the same issue is at play.

                          mituM 1 Reply Last reply Reply Quote 1
                          • mituM
                            mitu Global Moderator @MrPacMan17
                            last edited by

                            @mrpacman17 said in lr-duckstation - Experimental new PlayStation 1 emulator:

                            ProBook 6550B

                            I see, even this way glcore would not work. According to HP's spec page, the GPU included doesn't support OpenGL 3.3, which is needed for glcore.

                            MrPacMan17M 1 Reply Last reply Reply Quote 1
                            • MrPacMan17M
                              MrPacMan17 @mitu
                              last edited by

                              @mitu Okay, video is set back to GL. Still no luck though. I am doing something wrong but I don't know what. Sorry for my basic level of understanding here.

                              mituM 1 Reply Last reply Reply Quote 1
                              • mituM
                                mitu Global Moderator @MrPacMan17
                                last edited by

                                @mrpacman17 Try to force the Software renderer in Duckstation by modifying retroarch-core-options.cfg and setting

                                duckstation_GPU.Renderer = "Software"
                                1 Reply Last reply Reply Quote 1
                                • dankcushionsD
                                  dankcushions Global Moderator @MrPacMan17
                                  last edited by dankcushions

                                  @mitu we tried that :) i believe even in software mode duckstaiton needs a valid gl context. methinks this hardware is getting nothing. perhaps a linux driver issue. nah it should fall back to software... https://github.com/stenzek/duckstation/pull/908 - weird.

                                  @mrpacman17 i'm afraid i'm out of ideas. i don't have this hardware. if you know how to use gdb you could get a backtrace of the crash. you could also try the libretro and duckstation discord for advice.

                                  MrPacMan17M 2 Replies Last reply Reply Quote 1
                                  • MrPacMan17M
                                    MrPacMan17 @dankcushions
                                    last edited by

                                    @dankcushions Hi all. Well I am not a Linux specialst whatsoever. So I leave it at this. Thank you very much for your time and effort. I really appreciate it. I will run my PSX games with another emulator. Still I appreciate all your hard work. Thanks to you I can play retro games, which is totally awesome!

                                    I 1 Reply Last reply Reply Quote 1
                                    • MrPacMan17M
                                      MrPacMan17 @dankcushions
                                      last edited by

                                      @dankcushions and @mitu: It WORKS!!! Just for a last effort I added the line as I did before. And now it WORKS!!! Totally happy I am. Guess all the previous steps combined with the software rendering did the trick. Woohooo!!! Thank you guys!

                                      1 Reply Last reply Reply Quote 2
                                      • stooS
                                        stoo
                                        last edited by

                                        As well as the emulator sometimes failing to initialize OpenGL after changing resolution settings (even at low x values), I've noticed that after changing settings a few times (scaling, AA, PGXP, etc.) the emulator will become choppy and slow even when set to 1x native with all enhancements disabled. Restarting the emulator is the only way to get performance back. Not sure what's going on here.

                                        I'll see if I can replicate it and if there are reproducible steps to cause it.

                                        stooS 1 Reply Last reply Reply Quote 1
                                        • stooS
                                          stoo @stoo
                                          last edited by

                                          @stoo While I haven't been able to replicate the weird performance problem I was getting before, I see why OpenGL is failing intermittently.

                                          Seemingly at random when switching AA values, a shader fails to compile. It doesn't happen every time, but maybe 50% of the time?

                                          [libretro INFO] [LibretroHostInterface] Hardware context reset, type = 5
[INFO] [Environ]: GET_SAVE_DIRECTORY.
[libretro INFO] [LibretroHostInterface] Shader cache directory: '/home/pi/RetroPie/roms/psx//duckstation_cache/'
[libretro INFO] [GPUBackend] GPU thread stopped.
[libretro INFO] [GPU_HW_OpenGL] Max texture size: 4096x4096
[libretro INFO] [GPU_HW_OpenGL] Per-sample shading: not supported
[libretro INFO] [GPU_HW_OpenGL] Max multisamples: 4
[libretro INFO] [GPU_HW_OpenGL] Uniform buffer offset alignment: 256
[libretro WARN] [SetCapabilities] GL_EXT/OES_copy_image missing, this may affect performance.
[libretro INFO] [GPU_HW_OpenGL] Max fragment shader storage blocks: 16
[libretro INFO] [GPU_HW_OpenGL] Max shader storage buffer size: 134217728
[libretro INFO] [GPU_HW_OpenGL] Using shader storage buffers for VRAM writes.
[libretro INFO] [GPUBackend] GPU thread started.
[libretro INFO] [GPU_HW] Resolution Scale: 1 (1024x512), maximum 4
[libretro INFO] [GPU_HW] Multisampling: 4x
[libretro INFO] [GPU_HW] Dithering: Disabled
[libretro INFO] [GPU_HW] Texture Filtering: Nearest-Neighbor
[libretro INFO] [GPU_HW] Dual-source blending: Not supported
[libretro INFO] [GPU_HW] Using UV limits: NO
[libretro INFO] [GPU_HW] Depth buffer: NO
[libretro INFO] [GPU_HW] Downsampling: Disabled
[libretro INFO] [GPU_HW] Using software renderer for readbacks: YES
[INFO] [Environ]: GET_SAVE_DIRECTORY.
[libretro INFO] [LibretroHostInterface] Shader cache directory: '/home/pi/RetroPie/roms/psx//duckstation_cache/'
[libretro INFO] [GL::ShaderCache] 0 program binary formats supported by driver
[libretro WARN] [Open] Your GL driver does not support program binaries. Hopefully it has a built-in cache, otherwise startup will be slow due to compiling shaders.
[libretro INFO] [HostInterface] Loading: Compiling Shaders 81 of 0-156
[libretro ERROR] [CompileShader] Shader failed to compile:
0:105(68): error: `gl_SampleID' undeclared
0:105(63): error: cannot construct `uint' from a non-numeric data type
0:105(59): error: cannot construct `int' from a non-numeric data type
0:105(17): error: no matching function for call to `texelFetch(sampler2DMS, ivec2, error)'; candidates are:
0:105(17): error:    vec4 texelFetch(sampler1D, int, int)
0:105(17): error:    ivec4 texelFetch(isampler1D, int, int)
0:105(17): error:    uvec4 texelFetch(usampler1D, int, int)
0:105(17): error:    vec4 texelFetch(sampler2D, ivec2, int)
0:105(17): error:    ivec4 texelFetch(isampler2D, ivec2, int)
0:105(17): error:    uvec4 texelFetch(usampler2D, ivec2, int)
0:105(17): error:    vec4 texelFetch(sampler3D, ivec3, int)
0:105(17): error:    ivec4 texelFetch(isampler3D, ivec3, int)
0:105(17): error:    uvec4 texelFetch(usampler3D, ivec3, int)
0:105(17): error:    vec4 texelFetch(sampler2DRect, ivec2)
0:105(17): error:    ivec4 texelFetch(isampler2DRect, ivec2)
0:105(17): error:    uvec4 texelFetch(usampler2DRect, ivec2)
0:105(17): error:    vec4 texelFetch(sampler1DArray, ivec2, int)
0:105(17): error:    ivec4 texelFetch(isampler1DArray, ivec2, int)
0:105(17): error:    uvec4 texelFetch(usampler1DArray, ivec2, int)
0:105(17): error:    vec4 texelFetch(sampler2DArray, ivec3, int)
0:105(17): error:    ivec4 texelFetch(isampler2DArray, ivec3, int)
0:105(17): error:    uvec4 texelFetch(usampler2DArray, ivec3, int)
0:105(17): error:    vec4 texelFetch(sampler2DMS, ivec2, int)
0:105(17): error:    ivec4 texelFetch(isampler2DMS, ivec2, int)
0:105(17): error:    uvec4 texelFetch(usampler2DMS, ivec2, int)
0:105(17): error: type mismatch

[libretro ERROR] [Initialize] Failed to compile programs
[libretro ERROR] [CreateGPU] Failed to initialize OpenGL renderer, falling back to software renderer
[INFO] [Environ]: SET_MESSAGE: Failed to initialize OpenGL renderer, falling back to software renderer.
[libretro INFO] [GPUBackend] GPU thread stopped.
[libretro INFO] [GPUBackend] GPU thread started.

                                          When this happens, it says it's falling back to Software rendering, but a black screen appears instead. The game is still running, audio is playing but no display. You can switch internal resolutions up or down to force it to initialize the OpenGL renderer again and it usually comes back.

                                          No idea if this is a bug in duckstation, Retroarch or a GL driver bug. I'm using glcore.

                                          dankcushionsD 1 Reply Last reply Reply Quote 1
                                          • dankcushionsD
                                            dankcushions Global Moderator @stoo
                                            last edited by

                                            @stoo said in lr-duckstation - Experimental new PlayStation 1 emulator:

                                            No idea if this is a bug in duckstation, Retroarch or a GL driver bug. I'm using glcore.

                                            why glcore? aren't you on pi4? should be gl i think

                                            i would also remove any overclocks as they could have an affect on gl stability.

                                            stooS 1 Reply Last reply Reply Quote 1
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