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graphics: Add CompositeModeDestinationOver

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Hajime Hoshi 2016-04-14 01:09:11 +09:00
parent 5f6f2531a9
commit ee142a751c
1 changed files with 3 additions and 0 deletions
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3
graphics.go
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@ -57,6 +57,9 @@ const (
// c_out = c_dst
CompositeModeDestination = CompositeMode(opengl.CompositeModeDestination)
// c_out = c_src × (1 - α_dst) + c_dst
CompositeModeDestinationOver = CompositeMode(opengl.CompositeModeDestinationOver)
// c_out = c_src × α_dst
CompositeModeSourceIn = CompositeMode(opengl.CompositeModeSourceIn)