29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
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# PortMaster performance profile
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The PortMaster launcher keeps the normal game profile on unknown and stronger
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hardware. It enables the low-end profile only when the Linux device tree
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reports one of the identifiers used by the Allwinner H616/H700 XX handhelds:
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- `allwinner,h616`
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- `sun50iw9p1`
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- `allwinner,sun50i-h700`
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The low-end launch profile passes these options to Godot:
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- `--single-window`
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- `--disable-vsync`
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- `--max-fps 30`
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- `--audio-output-latency 40`
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It also passes `NETFISHING_LOW_END=1`. The game responds by rendering the 3D
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world at 75 percent linear resolution with nearest-neighbor scaling. This
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reduces 3D pixel work by about 44 percent while the separately rendered UI
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retains its canonical resolution.
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Do not use Godot's low processor mode for this profile. It reduces idle CPU
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usage by sleeping between updates and is not a game-performance optimization.
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When adding another device family, record its exact NUL-separated device-tree
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`compatible` value from the hardware before extending the launcher match. Do
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not infer detection from a retail product name alone.
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