mirror of
https://github.com/hajimehoshi/ebiten.git
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114 lines
3.2 KiB
Go
114 lines
3.2 KiB
Go
// Copyright 2023 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ebiten
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import (
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"fmt"
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)
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// CompositeMode represents Porter-Duff composition mode.
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//
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// Deprecated: as of v2.5. Use Blend instead.
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type CompositeMode int
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const (
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// CompositeModeCustom indicates to refer Blend.
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CompositeModeCustom CompositeMode = iota
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// Deprecated: as of v2.5. Use BlendSourceOver instead.
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CompositeModeSourceOver
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// Deprecated: as of v2.5. Use BlendClear instead.
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CompositeModeClear
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// Deprecated: as of v2.5. Use BlendCopy instead.
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CompositeModeCopy
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// Deprecated: as of v2.5. Use BlendDestination instead.
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CompositeModeDestination
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// Deprecated: as of v2.5. Use BlendDestinationOver instead.
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CompositeModeDestinationOver
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// Deprecated: as of v2.5. Use BlendSourceIn instead.
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CompositeModeSourceIn
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// Deprecated: as of v2.5. Use BlendDestinationIn instead.
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CompositeModeDestinationIn
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// Deprecated: as of v2.5. Use BlendSourceOut instead.
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CompositeModeSourceOut
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// Deprecated: as of v2.5. Use BlendDestinationOut instead.
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CompositeModeDestinationOut
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// Deprecated: as of v2.5. Use BlendSourceAtop instead.
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CompositeModeSourceAtop
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// Deprecated: as of v2.5. Use BlendDestinationAtop instead.
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CompositeModeDestinationAtop
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// Deprecated: as of v2.5. Use BlendXor instead.
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CompositeModeXor
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// Deprecated: as of v2.5. Use BlendLighter instead.
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CompositeModeLighter
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// Deprecated: as of v2.5. Use Blend with BlendFactorDestinationColor and BlendFactorZero instead.
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CompositeModeMultiply
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)
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func (c CompositeMode) blend() Blend {
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switch c {
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case CompositeModeSourceOver:
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return BlendSourceOver
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case CompositeModeClear:
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return BlendClear
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case CompositeModeCopy:
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return BlendCopy
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case CompositeModeDestination:
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return BlendDestination
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case CompositeModeDestinationOver:
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return BlendDestinationOver
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case CompositeModeSourceIn:
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return BlendSourceIn
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case CompositeModeDestinationIn:
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return BlendDestinationIn
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case CompositeModeSourceOut:
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return BlendSourceOut
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case CompositeModeDestinationOut:
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return BlendDestinationOut
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case CompositeModeSourceAtop:
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return BlendSourceAtop
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case CompositeModeDestinationAtop:
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return BlendDestinationAtop
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case CompositeModeXor:
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return BlendXor
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case CompositeModeLighter:
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return BlendLighter
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case CompositeModeMultiply:
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return Blend{
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BlendFactorSourceRGB: BlendFactorDestinationColor,
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BlendFactorSourceAlpha: BlendFactorDestinationColor,
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BlendFactorDestinationRGB: BlendFactorZero,
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BlendFactorDestinationAlpha: BlendFactorZero,
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BlendOperationRGB: BlendOperationAdd,
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BlendOperationAlpha: BlendOperationAdd,
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}
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default:
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panic(fmt.Sprintf("ebiten: invalid composite mode: %d", c))
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}
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}
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