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Questions tagged [libretro]

10 questions
2
votes
2 answers

How to convert an array of int16 sound samples to a byte array to use in MonoGame/XNA

I'm writing a libretro frontend in C#/MonoGame, I've managed to get a crude (but working) video blitter but now I'm struggling with sound. From the API: /* Renders multiple audio frames in one go. * * One frame is defined as a sample of left and…
Radius
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0 answers

I've got audio samples; how to play them correctly with the SDL?

I'm in the process of writing a very simple frontend for the libretro cores, and I'm attacking the audio part, the hardest (I never ever dealt with anything sound-related before, so it's very possible that I got it totally wrong). The way it works,…
Maël Nison
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Jerky sound from libretro using libao

I'm trying to create a tiny libretro frontend in C++ using SFML for the graphics, libao for the sound and some parts of the Qt framework. Here is the logic : using SFML's built-in clock system, I refresh at every frame the libretro core, at a given…
natinusala
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1 answer

Having trouble marshalling an array of structs from c to c#

I'm trying to marshal an array of c structs into C# (Using Unity) but, no matter the method I use, I always get an exception or a crash. I'm loading dlls (libretro cores) that conform (or should...) to the Libretro API, the c/c++ side is not…
Skurdt
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1 answer

SDL2 access render framebuffer

I am trying to access the framebuffer of an SDL_Renderer as an array of Uint32* pixel to pass to Libretro's display function. I created this minimal example to show two methods of accessing SDL's framebuffer that I have seen online, neither of which…
Morgoth
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make keyboard accessible for client of remote server (Raspberry pi, php)

So here is what I wanted to do. I have an Apache2 server up and running on my raspberry pi 3, which is currently serving as a webradio using php commands and mpd/mpc. The raspberry is also connected via HDMI to a display. I now like to have another…
Flo O
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Retroarch keeps crashing when i launch a GameCube game (Seg fault - Core dumped)

Every time i try to launch a GameCube game, I get this error : Segmentation fault(core dumped) What can i do to fix this ? Additional info : I am on Ubuntu 22.04 running the latest version of Retroarch, which i built myself. Here is the output i got…
Anthony
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Unable to transfer files to the XBox One in Dev Mode using either the XBox Portal or DurangoFTP for RetroArch

I bought the Dev Mode license for the Xbox One last week in the hopes of running RetroArch initially for the Amiga emulator. However I'm running into serious problems before I can even really start. I've tried the RetroArch forums and Discord but…
Colin
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1 answer

How to trigger creation of savefile

I'm trying to create a libretro core. It will be a standalone game, so I'm setting RETRO_ENVIRONMENT_SET_SUPPORT_NO_GAME to true. The documentation suggests that retro_get_memory_* can be used to have data saved without needing to explicitly query…
stewbasic
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Get filepath of library

I am building a library for the Libretro framework, and I want to get the path of my library so that I can open a file in the same directory as my library.so file. I followed the instructions at How to implement readlink to find the path, but that…
Morgoth
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