Switch to 16-bit truecolor framebuffer and PNG assets

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pbio moves to git.bnd.wtf/irrlicht/pbio.git branch truecolor16: the
framebuffer is now RGB565 u16, no palette. Assets are loaded from PNG via
the png crate and quantized to RGB565 on load; transparency comes from the
alpha channel as a per-tile opacity mask, so any color (black included) can
be opaque. The TGA loader and the palette-order fragility are gone.

overworld.png is the unmodified Mini-Medieval Overworld sheet (same 24-column
layout as the old TGA, so map tile ids are unchanged); entities.png holds the
player sprite extracted from the old entities.tga.

Adds an ignored snapshot test that renders the first frame headlessly to a
PNG for eyeballing the renderer without a window.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

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This commit is contained in:

irrlicht

2026-09-18 23:17:41 +02:00

co-authored by Claude Opus 5

parent 64a6e1d42d

commit 5a055c048d

14 changed files with 212 additions and 96 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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