<![CDATA[Loading png overlay with command line]]>Hello,

I need to add a custom png in front of a port game launched with my own script with xinit. I need to to the same job as Retroach's overlays but I don't find the command or the program used.

It should be easy to load a png into a system that does it everywhere, but I'm stuck.

]]>https://retropie.org.uk/forum/topic/35553/loading-png-overlay-with-command-lineRSS for NodeWed, 15 Jul 2026 00:35:15 GMTTue, 04 Jun 2024 15:59:17 GMT60<![CDATA[Reply to Loading png overlay with command line on Sun, 09 Jun 2024 02:34:44 GMT]]>Ok, pngview was already installed on my system and used by the PiBoy OSD. I found a png loading used in the installscript of the firmware and I can reproduce this when I want with a single line added in my scripts. It's exactly what I was looking for !

@sleve_mcdichael Thanks for your help

]]>https://retropie.org.uk/forum/post/297778https://retropie.org.uk/forum/post/297778Sun, 09 Jun 2024 02:34:44 GMT<![CDATA[Reply to Loading png overlay with command line on Sun, 09 Jun 2024 02:37:38 GMT]]>@sleve_mcdichael It looks like very hard consisting to draw every pixel in a framebuffer. It should be existing something at easier level like "function load" '/home/pi/img/png.png' at "coord x" and "coord y" usable in a script.

For instance EmulationStation themes are looking for load border.png, or pop games videos in front of everthing. I doubt the dev must code "draw each pixel in framebuffer" everytime. They call certainly existing commands avaiable in the OS environement.

I will try pngview.

]]>https://retropie.org.uk/forum/post/297775https://retropie.org.uk/forum/post/297775Sun, 09 Jun 2024 02:37:38 GMT<![CDATA[Reply to Loading png overlay with command line on Sat, 08 Jun 2024 21:29:49 GMT]]>@Nash i found this Reddit post https://www.reddit.com/r/linux_programming/s/AUs0i0Hhis

In in it they suggest using pngview (https://github.com/AndrewFromMelbourne/raspidmx/tree/master/pngview), or suggests that also you can write directly to /dev/fb0 (https://seenaburns.com/2018/04/04/writing-to-the-framebuffer/)

]]>https://retropie.org.uk/forum/post/297774https://retropie.org.uk/forum/post/297774Sat, 08 Jun 2024 21:29:49 GMT<![CDATA[Reply to Loading png overlay with command line on Sat, 08 Jun 2024 20:53:01 GMT]]>So nobody can tell me how to load png overlay with something already present in Retropie ? I would like to avoid adding another third-party program unnecessarily. Even that is hard to find.

It drives me crazy, there are PNG loads absolutely everywhere with OSD displaying png or animations everywhere like widgets. I looked in the Retroarch source code but I didn't find anything in what I can understand.

I don't find anything on the web. How did devs have learned to display PNG ?

]]>https://retropie.org.uk/forum/post/297770https://retropie.org.uk/forum/post/297770Sat, 08 Jun 2024 20:53:01 GMT<![CDATA[Reply to Loading png overlay with command line on Tue, 04 Jun 2024 16:47:17 GMT]]>@mitu Thanks but I really need to add png over to hide some undesired window elements. And it will be useful later for me to do some OSD on anothers projects.

]]>https://retropie.org.uk/forum/post/297636https://retropie.org.uk/forum/post/297636Tue, 04 Jun 2024 16:47:17 GMT<![CDATA[Reply to Loading png overlay with command line on Tue, 04 Jun 2024 16:33:31 GMT]]>I'm not aware of any general method of overlaying an image on-top of a runing program, but you can set the background using feh and have the port's window fit in the middle.

]]>https://retropie.org.uk/forum/post/297635https://retropie.org.uk/forum/post/297635Tue, 04 Jun 2024 16:33:31 GMT