Touch/gestures, Sprites and LVGL integration

[pschatzmann]

Changes since v0.1.0

Release v0.1.0 was tagged on 2026-04-24. Since then, 32 commits landed on main, touching 46 files (+4881/−497 lines).

New display driver infrastructure

• New DisplayDriverSPI.h (565 lines) — generic SPI display driver, later optimized (writeData) and had a redundant writePixels removed; fixed for correct pixel byte order; new ILI9341/ILI9342 full-init drivers, plus a rotation parameter and readData support
• New DisplayDriverSDL.h for desktop/SDL output, plus a desktop example and CMake desktop build support

Fonts

• New bitmap font system: AsciiFonts.h, FixedBitmapFont.h, GammaTable.h
• Fixed Font16x24 horizontal mirroring bug; added font-test example

Touch & gestures

• New TouchDriver.h (730 lines) with new touch driver classes, plus several follow-up fixes for compile errors and a review pass
• New GestureDetector.h (322 lines) for gesture support

Sprites

• New SpriteDisplay.h, SpriteInfo.h, SurfaceWithExternalBuffer.h for sprite rendering
• FrameBuffer gained sprite access (setData(), sprite access methods) and was refactored/slimmed (net ~-150 lines despite new features)
• Added setClearOnSpriteMove option
• New sprite-display-demo and bouncing-ball examples

LVGL support

• New LVGLDriver.h (281 lines) integrating LVGL, with a dedicated lvgl-example (later cleaned up)

Color formats

• New RBG565.h, plus additions to BGR565.h / RGB565.h

Other

• TinyGPUGlobals.h significantly expanded (+116 lines)
• New color-test example; test-compile example renamed/expanded from old test.ino
• CMake build improvements across examples (CMakeLists.txt added to most example dirs, plus a top-level CMakeLists.txt)
• General cleanup commits and TinyGPULoggerClass documentation
• Desktop compilation support, UDP example fix
• docs/palette.png removed

Summary

This release adds three major subsystems (touch/gestures, sprites, LVGL integration) plus a from-scratch SPI display driver layer and bitmap font rendering — a substantial feature release beyond v0.1.0.

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