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restorable: Remove merging commands for code simplicity

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This commit is contained in:
Hajime Hoshi 2018-06-10 20:06:17 +09:00
parent 03079ba067
commit 2e5e7e6e24
1 changed files with 3 additions and 30 deletions
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33
internal/restorable/image.go
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@ -27,30 +27,12 @@ import (
// drawImageHistoryItem is an item for history of draw-image commands.
type drawImageHistoryItem struct {
image *Image
vertices [][]float32
vertices []float32
colorm *affine.ColorM
mode opengl.CompositeMode
filter graphics.Filter
}
// canMerge returns a boolean value indicating whether the drawImageHistoryItem d
// can be merged with the given conditions.
func (d *drawImageHistoryItem) canMerge(image *Image, colorm *affine.ColorM, mode opengl.CompositeMode, filter graphics.Filter) bool {
if d.image != image {
return false
}
if !d.colorm.Equals(colorm) {
return false
}
if d.mode != mode {
return false
}
if d.filter != filter {
return false
}
return true
}
// Image represents an image that can be restored when GL context is lost.
type Image struct {
image *graphics.Image
@ -224,13 +206,6 @@ func (i *Image) appendDrawImageHistory(image *Image, vertices []float32, colorm
if i.stale || i.volatile || i.screen {
return
}
if len(i.drawImageHistory) > 0 {
last := i.drawImageHistory[len(i.drawImageHistory)-1]
if last.canMerge(image, colorm, mode, filter) {
last.vertices = append(last.vertices, vertices)
return
}
}
const maxDrawImageHistoryNum = 100
if len(i.drawImageHistory)+1 > maxDrawImageHistoryNum {
i.makeStale()
@ -240,7 +215,7 @@ func (i *Image) appendDrawImageHistory(image *Image, vertices []float32, colorm
// So we don't have to care if image is stale or not here.
item := &drawImageHistoryItem{
image: image,
vertices: [][]float32{vertices},
vertices: vertices,
colorm: colorm,
mode: mode,
filter: filter,
@ -375,9 +350,7 @@ func (i *Image) restore() error {
if c.image.hasDependency() {
panic("not reached")
}
for _, v := range c.vertices {
gimg.DrawImage(c.image.image, v, quadIndices, c.colorm, c.mode, c.filter)
}
gimg.DrawImage(c.image.image, c.vertices, quadIndices, c.colorm, c.mode, c.filter)
}
i.image = gimg