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https://github.com/OpenDiablo2/OpenDiablo2
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48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
package d2enum
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// CompositeMode defines the composite mode
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type CompositeMode int
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const (
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// CompositeModeSourceOver applies a composite based on:
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// c_out = c_src + c_dst × (1 - α_src) (Regular alpha blending)
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CompositeModeSourceOver CompositeMode = iota + 1
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// CompositeModeClear applies a composite based on: c_out = 0
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CompositeModeClear
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// CompositeModeCopy applies a composite based on: c_out = c_src
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CompositeModeCopy
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// CompositeModeDestination applies a composite based on: c_out = c_dst
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CompositeModeDestination
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// CompositeModeDestinationOver applies a composite based on: c_out = c_src × (1 - α_dst) + c_dst
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CompositeModeDestinationOver
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// CompositeModeSourceIn applies a composite based on: c_out = c_src × α_dst
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CompositeModeSourceIn
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// CompositeModeDestinationIn applies a composite based on: c_out = c_dst × α_src
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CompositeModeDestinationIn
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// CompositeModeSourceOut applies a composite based on: c_out = c_src × (1 - α_dst)
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CompositeModeSourceOut
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// CompositeModeDestinationOut applies a composite based on: c_out = c_dst × (1 - α_src)
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CompositeModeDestinationOut
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// CompositeModeSourceAtop applies a composite based on: c_out = c_src × α_dst + c_dst × (1 - α_src)
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CompositeModeSourceAtop
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// CompositeModeDestinationAtop applies a composite based on: c_out = c_src × (1 - α_dst) + c_dst × α_src
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CompositeModeDestinationAtop
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// CompositeModeXor applies a composite based on: c_out = c_src × (1 - α_dst) + c_dst × (1 - α_src)
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CompositeModeXor
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// CompositeModeLighter applies a composite based on:
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// c_out = c_src + c_dst Sum of source and destination (a.k.a. 'plus' or 'additive')
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CompositeModeLighter
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)
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