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https://git.sr.ht/~eliasnaur/gio
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Elias Naur
f7902f299b
Push/Pop only allows saving and restoring operation state in a stack-like manner. We're going to need restoring arbitrary state for implementing deferred operations. Generalize state save/restore and implement Push and Pop on top of that. Signed-off-by: Elias Naur <mail@eliasnaur.com>
109 lines
2.1 KiB
Go
109 lines
2.1 KiB
Go
// SPDX-License-Identifier: Unlicense OR MIT
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package opconst
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type OpType byte
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// Start at a high number for easier debugging.
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const firstOpIndex = 200
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const (
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TypeMacro OpType = iota + firstOpIndex
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TypeCall
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TypeTransform
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TypeLayer
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TypeInvalidate
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TypeImage
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TypePaint
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TypeColor
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TypeLinearGradient
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TypeArea
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TypePointerInput
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TypePass
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TypeClipboardRead
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TypeClipboardWrite
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TypeKeyInput
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TypeKeyFocus
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TypeKeySoftKeyboard
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TypeSave
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TypeLoad
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TypeAux
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TypeClip
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TypeProfile
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TypeCursor
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TypePath
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TypeStroke
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TypeDash
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)
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const (
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TypeMacroLen = 1 + 4 + 4
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TypeCallLen = 1 + 4 + 4
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TypeTransformLen = 1 + 4*6
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TypeLayerLen = 1
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TypeRedrawLen = 1 + 8
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TypeImageLen = 1
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TypePaintLen = 1
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TypeColorLen = 1 + 4
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TypeLinearGradientLen = 1 + 8*2 + 4*2
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TypeAreaLen = 1 + 1 + 4*4
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TypePointerInputLen = 1 + 1 + 1
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TypePassLen = 1 + 1
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TypeClipboardReadLen = 1
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TypeClipboardWriteLen = 1
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TypeKeyInputLen = 1
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TypeKeyFocusLen = 1 + 1
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TypeKeySoftKeyboardLen = 1 + 1
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TypeSaveLen = 1 + 4
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TypeLoadLen = 1 + 4
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TypeAuxLen = 1
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TypeClipLen = 1 + 4*4 + 1
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TypeProfileLen = 1
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TypeCursorLen = 1 + 1
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TypePathLen = 1 + 4
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TypeStrokeLen = 1 + 4 + 4 + 1 + 1
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TypeDashLen = 1 + 4 + 1
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)
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func (t OpType) Size() int {
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return [...]int{
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TypeMacroLen,
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TypeCallLen,
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TypeTransformLen,
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TypeLayerLen,
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TypeRedrawLen,
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TypeImageLen,
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TypePaintLen,
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TypeColorLen,
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TypeLinearGradientLen,
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TypeAreaLen,
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TypePointerInputLen,
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TypePassLen,
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TypeClipboardReadLen,
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TypeClipboardWriteLen,
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TypeKeyInputLen,
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TypeKeyFocusLen,
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TypeKeySoftKeyboardLen,
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TypeSaveLen,
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TypeLoadLen,
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TypeAuxLen,
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TypeClipLen,
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TypeProfileLen,
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TypeCursorLen,
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TypePathLen,
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TypeStrokeLen,
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TypeDashLen,
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}[t-firstOpIndex]
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}
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func (t OpType) NumRefs() int {
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switch t {
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case TypeKeyInput, TypePointerInput, TypeProfile, TypeCall, TypeClipboardRead, TypeClipboardWrite, TypeCursor:
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return 1
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case TypeImage:
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return 2
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default:
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return 0
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}
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}
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