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Add raw joystick fallback for non-standard controllers

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Open the joystick via SDL_JoystickOpen() when no GameController mapping
exists, fixing d-pad and face button input on devices like the Anbernic
retro handheld (GUID not in SDL's database). Handles JOYHATMOTION for
d-pad navigation and JOYBUTTONDOWN button 0 for activation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Michael Smith
2026-02-13 11:37:19 +01:00
parent dbc3f11797
commit 2fd764f60f
2 changed files with 45 additions and 0 deletions
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docs/sdlamp2-fsd.md
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@@ -43,6 +43,12 @@ This document specifies the functional requirements for an SDL2 based media play
## 6. Changelog
### 2026-02-13 — Raw joystick fallback for non-standard controllers
- **Joystick fallback**: When no SDL GameController mapping exists for a connected device, the joystick is now opened directly via `SDL_JoystickOpen()` as a fallback. This fixes d-pad and face button input on devices like the Anbernic retro handheld whose GUID is not in SDL's GameController database.
- **Hat/button handling**: `SDL_JOYHATMOTION` events drive d-pad navigation (left/right to move focus, up/down for volume), and `SDL_JOYBUTTONDOWN` button 0 (BTN_SOUTH / A) activates the focused button.
- **Hot-unplug**: Raw joystick is properly closed on `SDL_JOYDEVICEREMOVED`.
### 2026-02-13 — Embed controls spritesheet into binary
- **Embedded asset**: `controls.png` is now compiled into the binary as a C byte array (`src/controls_png.h`), eliminating the requirement to run from the `build/` directory.