Question 1

How do I handle the different pixel formats between Android and desktop in MiniFB?

Accepted Answer

Use the MFB_RGB macro for platform-agnostic pixel creation. For external data like images from stb_image, you must swap red and blue channels on desktop or Android based on the source format, as explained in the Android pixel format notes.

Question 2

MiniFB vs SDL for simple C graphics: which should I choose?

Accepted Answer

MiniFB is lighter and focused solely on windowing and pixel rendering, while SDL offers more features like audio and networking. Pick MiniFB for raw pixel control; SDL for a comprehensive media framework.

Question 3

Does MiniFB support multi-touch on Android and iOS?

Accepted Answer

Yes, but touches are mapped to mouse callbacks with IDs packed into coordinates. Use mfb_decode_touch() to extract position and ID, as described in the input state queries section.

Question 4

How to set up MiniFB for WebAssembly with Emscripten?

Accepted Answer

Specify the Emscripten toolchain in CMake with -DCMAKE_TOOLCHAIN_FILE, build the project, and serve the output with an HTTP server. The README includes steps for HTML integration and canvas management.

Question 5

Can I use shaders with MiniFB for graphics effects?

Accepted Answer

No, MiniFB is designed for raw pixel buffers and doesn't support shaders. You'd need to implement effects in software on the CPU or integrate a separate rendering library.

Question 6

What are the limitations of MiniFB on Wayland compared to X11?

Accepted Answer

Wayland support is less mature; some window flags are ignored, and it may block in mfb_update_ex() while waiting for compositor callbacks. Protocol compatibility might require regenerating files with system tools.

MiniFB

What is MiniFB?

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Frequently Asked Questions