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internal/restorable: Remove draw-triangles-history items explicitly

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Updates #1803
This commit is contained in:
Hajime Hoshi 2021-09-09 12:57:47 +09:00
parent 106ff7a84b
commit dbe101a8ef
1 changed files with 15 additions and 7 deletions
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22
internal/restorable/image.go
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@ -203,7 +203,7 @@ func (i *Image) Extend(width, height int) *Image {
// Overwrite the history as if the image newImg is created only by ReplacePixels. Now drawTrianglesHistory
// and basePixels cannot be mixed.
newImg.drawTrianglesHistory = newImg.drawTrianglesHistory[:0]
newImg.clearDrawTrianglesHistory()
newImg.basePixels = i.basePixels
newImg.stale = i.stale
@ -273,7 +273,7 @@ func (i *Image) BasePixelsForTesting() *Pixels {
// makeStale makes the image stale.
func (i *Image) makeStale() {
i.basePixels = Pixels{}
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = true
// Don't have to call makeStale recursively here.
@ -327,7 +327,7 @@ func (i *Image) ReplacePixels(pixels []byte, x, y, width, height int) {
} else {
i.basePixels.Remove(0, 0, w, h)
}
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = false
return
}
@ -503,7 +503,7 @@ func (i *Image) readPixelsFromGPU() error {
}
i.basePixels = Pixels{}
i.basePixels.AddOrReplace(pix, 0, 0, i.width, i.height)
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = false
return nil
}
@ -583,7 +583,7 @@ func (i *Image) restore() error {
// be changed.
i.image = graphicscommand.NewScreenFramebufferImage(w, h)
i.basePixels = Pixels{}
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = false
return nil
}
@ -634,7 +634,7 @@ func (i *Image) restore() error {
}
i.image = gimg
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = false
return nil
}
@ -647,7 +647,7 @@ func (i *Image) Dispose() {
i.image.Dispose()
i.image = nil
i.basePixels = Pixels{}
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
i.clearDrawTrianglesHistory()
i.stale = false
}
@ -665,3 +665,11 @@ func (i *Image) isInvalidated() (bool, error) {
func (i *Image) Dump(path string, blackbg bool, rect image.Rectangle) error {
return i.image.Dump(path, blackbg, rect)
}
func (i *Image) clearDrawTrianglesHistory() {
// Clear the items explicitly, or the references might remain (#1803).
for idx := range i.drawTrianglesHistory {
i.drawTrianglesHistory[idx] = nil
}
i.drawTrianglesHistory = i.drawTrianglesHistory[:0]
}