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Support loading sprites with pre-multiplied alpha.

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This commit is contained in:
Paul Chote
2023-10-27 09:40:34 +01:00
committed by Gustas
parent 37ce5e447f
commit 8503678fc7
3 changed files with 27 additions and 18 deletions
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8
OpenRA.Game/Graphics/SheetBuilder.cs
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@@ -82,16 +82,16 @@ namespace OpenRA.Graphics
this.margin = margin;
}
public Sprite Add(ISpriteFrame frame) { return Add(frame.Data, frame.Type, frame.Size, 0, frame.Offset); }
public Sprite Add(byte[] src, SpriteFrameType type, Size size) { return Add(src, type, size, 0, float3.Zero); }
public Sprite Add(byte[] src, SpriteFrameType type, Size size, float zRamp, in float3 spriteOffset)
public Sprite Add(ISpriteFrame frame, bool premultiplied = false) { return Add(frame.Data, frame.Type, frame.Size, 0, frame.Offset, premultiplied); }
public Sprite Add(byte[] src, SpriteFrameType type, Size size, bool premultiplied = false) { return Add(src, type, size, 0, float3.Zero, premultiplied); }
public Sprite Add(byte[] src, SpriteFrameType type, Size size, float zRamp, in float3 spriteOffset, bool premultiplied = false)
{
// Don't bother allocating empty sprites
if (size.Width == 0 || size.Height == 0)
return new Sprite(Current, Rectangle.Empty, 0, spriteOffset, CurrentChannel, BlendMode.Alpha);
var rect = Allocate(size, zRamp, spriteOffset);
Util.FastCopyIntoChannel(rect, src, type);
Util.FastCopyIntoChannel(rect, src, type, premultiplied);
Current.CommitBufferedData();
return rect;
}