Questions tagged [framebuffer]
In general a framebuffer is a graphic hardware-independent abstraction layer used to display output to a monitor or display.
framebuffer
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RPI Pico put PNG in Framebuffer
I have a Raspberry pi pico w with a PNG file on it and i am wondering if its possible to put this PNG file inside a framebuffer.
I already createt a framebuffer with color565 and I can work with it, ...
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Can we have graphical server on ttyS*
I have a "c5.2xlarge" AWS EC2 instance running an application. Upon system starting, we perform some initial setup. This starter page uses JavaScript and QT for its application. We also use ...
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android openGL ES blur effect gives line on screen
I am trying to implement a post-processing blur effect on a map drawn using openGL on my android app project.
What I try to do is render my map in a texture, then render the texture on screen using a ...
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Proper way to read from a texture in a compute shader which uses a storage texture
I've been searching for different resources and it seems to not be possible to read from a storage texture and then write back to it. That's why I've tried to use 2 separate textures: one as ...
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Linux simple-framebuffer is not detected by kernel
I'm trying to get the simple-framebuffer working in Linux, so that I can use a region in System RAM as a framebuffer.
I'm running Linux kernel v5.10.7 on a RISC-V system.
So far, I have enabled ...
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Inconsistent in results of Python and C programs while getting info about FrameBuffer in Ubuntu
So, I want to call ioctl FBIOGET_FSCREENINFO and get result. I have fbset (fbset - show and modify frame buffer device settings) result as source of truth. result of C code match with fbset. Result of ...
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value error when creating an instance of framebuf.FrameBuffer in MicroPython
This is a problem with the width argument, and the program will only work correctly if it has a specified value between one and eight, otherwise it will display a ValueError: error with no explanation....
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Creating a window just to get its framebuffer?
I've been writing this small ray-tracing engine in C/C++, and so far I've got basic functionality, where the finished image gets written to an image. However, I want to be able to create a window and ...
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Unwanted cursor with Java2D drawing directly to framebuffer
The environment is Java 11 on a Raspberry Pi 3B+ with a 3.5" touchscreen. The program writes directly to the framebuffer with the aid of Thomas Welsch's JavaFrameBuffer JNI support.
Things work ...
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Fragment Shader Multiple Output and Reading from FrameBuffer Object Issue
I have 2 outputs in fragment shader first one's output color (RGBA) and the second one's is a number which will serve as an id but I try to read it from frameBuffer it always returns 0.
The way how I ...
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How to stream the Transparency image on framebuffer using gstreamer command
I am working on the custom project which having mixer output. Mixer output having one frame buffer input for background image, i want to filter out the green color on the image and make it ...
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Copying frames from camera (/dev/video0) to framebuffer (/dev/fb0) gives unexpected result
I have been trying to show frame from raspberry camera to screen with near best performance, and after research I found that the best way could be to use V4L2 library to directly communicate to ...
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Setting MMAL_ENCODER to RGBA or BGRA gives same color output
I am trying to take frame from camera and copy it to framebuffer to show it to the screen. But, my output seems to mix R and B color... Here is code for setting output format:
format = video_port->...
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Using frame buffers with Scene2D
I've been having some trouble with a custom Scene2D actor whose draw method uses a FrameBuffer. The original idea was to draw to the FrameBuffer with one shader and then draw the contents of the ...
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Drawing to screen and keeping image intact while using dialog
I am running on Raspbian (Debian 11) lite, with CLI only.
I use a bash script with dialog to navigate a menu and perform bash actions.
I would like to "mimic" the Raspbian start screen, when ...
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