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internal/restorable: refactoring

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This commit is contained in:
Hajime Hoshi 2024-09-08 17:03:18 +09:00
parent b36160d9e7
commit 9ef9ea0469
2 changed files with 14 additions and 16 deletions
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16
internal/restorable/image.go
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@ -482,12 +482,12 @@ func (i *Image) ReadPixels(graphicsDriver graphicsdriver.Graphics, pixels []byte
return nil
}
// makeStaleIfDependingOn makes the image stale if the image depends on target.
func (i *Image) makeStaleIfDependingOn(target *Image) {
// makeStaleIfDependingOn makes the image stale if the image depends on src.
func (i *Image) makeStaleIfDependingOn(src *Image) {
if i.stale {
return
}
if i.dependsOn(target) {
if i.dependsOn(src) {
// There is no new region to make stale.
i.makeStale(image.Rectangle{})
}
@ -573,16 +573,14 @@ func (i *Image) resolveStale(graphicsDriver graphicsdriver.Graphics) error {
return i.readPixelsFromGPU(graphicsDriver)
}
// dependsOn reports whether the image depends on target.
func (i *Image) dependsOn(target *Image) bool {
// dependsOn reports whether the image depends on src.
func (i *Image) dependsOn(src *Image) bool {
for _, c := range i.drawTrianglesHistory {
for _, img := range c.images {
if img == nil {
if img != src {
continue
}
if img == target {
return true
}
return true
}
}
return false

14
internal/restorable/images.go
View File

@ -164,16 +164,16 @@ func (i *images) resolveStaleImages(graphicsDriver graphicsdriver.Graphics) erro
return nil
}
// makeStaleIfDependingOn makes all the images stale that depend on target.
// makeStaleIfDependingOn makes all the images stale that depend on src.
//
// When target is modified, all images depending on target can't be restored with target.
// makeStaleIfDependingOn is called in such situation.
func (i *images) makeStaleIfDependingOn(target *Image) {
if target == nil {
panic("restorable: target must not be nil at makeStaleIfDependingOn")
// When src is modified, all images depending on src can't be restored with src.
// makeStaleIfDependingOn is called in such situation.src.
func (i *images) makeStaleIfDependingOn(src *Image) {
if src == nil {
panic("restorable: src must not be nil at makeStaleIfDependingOn")
}
for img := range i.images {
img.makeStaleIfDependingOn(target)
img.makeStaleIfDependingOn(src)
}
}