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internal/restorable: refactoring

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Updates #805
This commit is contained in:
Hajime Hoshi 2024-01-13 18:15:24 +09:00
parent e804f9e58c
commit 81e1104613
1 changed files with 5 additions and 6 deletions
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9
internal/restorable/image.go
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@ -96,7 +96,10 @@ func clearImage(i *graphicscommand.Image, region image.Rectangle) {
// ClearPixels clears the specified region by WritePixels.
func (i *Image) ClearPixels(region image.Rectangle) {
i.WritePixels(nil, region)
if region.Dx() <= 0 || region.Dy() <= 0 {
panic("restorable: width/height must be positive")
}
clearImage(i.Image, region.Intersect(image.Rect(0, 0, i.width, i.height)))
}
// WritePixels replaces the image pixels with the given pixels slice.
@ -111,11 +114,7 @@ func (i *Image) WritePixels(pixels *graphics.ManagedBytes, region image.Rectangl
panic(fmt.Sprintf("restorable: out of range %v", region))
}
if pixels != nil {
i.Image.WritePixels(pixels, region)
} else {
clearImage(i.Image, region)
}
}
// DrawTriangles draws triangles with the given image.