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It would be easy to assume that all APIs that reference SDL_JOYSTICK_AXIS_MAX work the same way, but they do not: triggers generally use the full signed 16-bit range in the lower-level joystick API, but are normalized to be non-negative by the higher-level gamepad API. We also never said explicitly which direction is positive here. Experimentally, it's right (X), down (Y), and pressed (triggers). Resolves: https://github.com/libsdl-org/SDL/issues/8793 Signed-off-by: Simon McVittie <smcv@collabora.com>
Simple DirectMedia Layer (SDL) Version 3.0
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games.
More extensive documentation is available in the docs directory, starting with README.md. If you are migrating to SDL 3.0 from SDL 2.0, the changes are extensively documented in README-migration.md.
Enjoy!
Sam Lantinga (slouken@libsdl.org)