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improve premultiplication performance

This commit is contained in:
Jesse Plamondon-Willard 2020-06-07 12:33:48 -04:00
parent 868eefb9a7
commit 8036bcdf00
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GPG Key ID: CF8B1456B3E29F49
2 changed files with 4 additions and 2 deletions
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1
docs/release-notes.md
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@ -7,6 +7,7 @@
* MacOS files starting with `._` are now ignored and can no longer cause skipped mods.
* Simplified paranoid warning logs and reduced their log level.
* Reduced startup time when loading mod DLLs (thanks to ZaneYork!).
* Reduced processing time when a mod loads many unpacked images (thanks to Entoarox!).
* Fixed `BadImageFormatException` error detection.
* Fixed black maps on Android for mods which use `.tmx` files.

5
src/SMAPI/Framework/ContentManagers/ModContentManager.cs
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@ -246,10 +246,11 @@ namespace StardewModdingAPI.Framework.ContentManagers
texture.GetData(data);
for (int i = 0; i < data.Length; i++)
{
if (data[i].A == byte.MinValue || data[i].A == byte.MaxValue)
var pixel = data[i];
if (pixel.A == byte.MinValue || pixel.A == byte.MaxValue)
continue; // no need to change fully transparent/opaque pixels
data[i] = Color.FromNonPremultiplied(data[i].ToVector4());
data[i] = new Color(pixel.R * pixel.A / byte.MaxValue, pixel.G * pixel.A / byte.MaxValue, pixel.B * pixel.A / byte.MaxValue, pixel.A); // slower version: Color.FromNonPremultiplied(data[i].ToVector4())
}
texture.SetData(data);