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shareable: Avoid defer for performance

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This commit is contained in:
Hajime Hoshi 2019-09-29 03:50:43 +09:00
parent 907302c440
commit ffbdda9a25
1 changed files with 3 additions and 1 deletions
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4
internal/shareable/image.go
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@ -281,7 +281,7 @@ func (i *Image) region() (x, y, width, height int) {
// 11: Color Y // 11: Color Y
func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address) { func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16, colorm *affine.ColorM, mode driver.CompositeMode, filter driver.Filter, address driver.Address) {
backendsM.Lock() backendsM.Lock()
defer backendsM.Unlock() // Do not use defer for performance.
if img.disposed { if img.disposed {
panic("shareable: the drawing source image must not be disposed (DrawTriangles)") panic("shareable: the drawing source image must not be disposed (DrawTriangles)")
@ -321,6 +321,8 @@ func (i *Image) DrawTriangles(img *Image, vertices []float32, indices []uint16,
if !img.isShared() && img.shareable() { if !img.isShared() && img.shareable() {
imagesToMakeShared[img] = struct{}{} imagesToMakeShared[img] = struct{}{}
} }
backendsM.Unlock()
} }
func (i *Image) Fill(clr color.RGBA) { func (i *Image) Fill(clr color.RGBA) {