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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>
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
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Cargo.lock
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+82 -1
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@@ -18,6 +18,12 @@ version = "0.1.10"
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@@ -319,6 +325,15 @@ dependencies = [
"libc",
]
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dependencies = [
"cfg-if",
]
[[package]]
name = "crossbeam-utils"
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@@ -389,12 +404,32 @@ dependencies = [
"windows-sys 0.61.2",
]
[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"zlib-rs",
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[[package]]
name = "foldhash"
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@@ -439,6 +474,7 @@ name = "game"
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dependencies = [
"pbio",
"png",
"sim",
]
@@ -797,6 +833,26 @@ dependencies = [
"paste",
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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@@ -1163,7 +1219,7 @@ checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
[[package]]
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@@ -1215,6 +1271,19 @@ version = "0.2.3"
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@@ -1476,6 +1545,12 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
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[[package]]
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@@ -2405,3 +2480,9 @@ dependencies = [
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