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restorable: Rename dummyImage -> emptyImage

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This commit is contained in:
Hajime Hoshi 2018-12-01 20:49:11 +01:00
parent e537cb2c27
commit f85a62c6a7
1 changed files with 9 additions and 7 deletions
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16
internal/restorable/image.go
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@ -57,7 +57,7 @@ type Image struct {
h2 int
}
var dummyImage = NewImage(16, 16, false)
var emptyImage = NewImage(16, 16, false)
// NewImage creates an empty image with the given size.
//
@ -143,11 +143,13 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
if pixels != nil {
i.image.ReplacePixels(pixels, x, y, width, height)
} else {
// There are not 'drawImageHistoryItem's for this image and dummyImage.
// This means dummyImage might not be restored yet when this image is restored.
// However, that's ok since this image will be stale or have updated pixel data
// and this image can be restored without dummyImage.
dw, dh := dummyImage.Size()
// There are not 'drawImageHistoryItem's for this image and emptyImage.
// This means emptyImage might not be restored yet when this image is restored.
// However, that's ok since this image will be stale or have its updated pixel data soon,
// and this image can be restored without emptyImage.
//
// emptyImage should be restored later anyway.
dw, dh := emptyImage.Size()
w2 := graphics.NextPowerOf2Int(w)
h2 := graphics.NextPowerOf2Int(h)
vs := graphics.QuadVertices(w2, h2, 0, 0, dw, dh,
@ -155,7 +157,7 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
float32(x), float32(y),
1, 1, 1, 1)
is := graphics.QuadIndices()
i.image.DrawImage(dummyImage.image, vs, is, nil, graphics.CompositeModeCopy, graphics.FilterNearest)
i.image.DrawImage(emptyImage.image, vs, is, nil, graphics.CompositeModeCopy, graphics.FilterNearest)
}
if x == 0 && y == 0 && width == w && height == h {