95 lines
3.1 KiB
Go
95 lines
3.1 KiB
Go
package vnc
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import (
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"bytes"
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"sync"
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)
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// EncodingType represents a known VNC encoding type.
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type EncodingType int32
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//go:generate stringer -type=EncodingType
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const (
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EncRaw EncodingType = 0
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EncCopyRect EncodingType = 1
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EncRRE EncodingType = 2
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EncCoRRE EncodingType = 4
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EncHextile EncodingType = 5
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EncZlib EncodingType = 6
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EncTight EncodingType = 7
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EncZlibHex EncodingType = 8
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EncUltra1 EncodingType = 9
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EncUltra2 EncodingType = 10
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EncJPEG EncodingType = 21
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EncJRLE EncodingType = 22
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EncTRLE EncodingType = 15
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EncZRLE EncodingType = 16
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EncJPEGQualityLevelPseudo10 EncodingType = -23
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EncJPEGQualityLevelPseudo9 EncodingType = -24
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EncJPEGQualityLevelPseudo8 EncodingType = -25
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EncJPEGQualityLevelPseudo7 EncodingType = -26
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EncJPEGQualityLevelPseudo6 EncodingType = -27
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EncJPEGQualityLevelPseudo5 EncodingType = -28
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EncJPEGQualityLevelPseudo4 EncodingType = -29
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EncJPEGQualityLevelPseudo3 EncodingType = -30
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EncJPEGQualityLevelPseudo2 EncodingType = -31
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EncJPEGQualityLevelPseudo1 EncodingType = -32
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EncColorPseudo EncodingType = -239
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EncDesktopSizePseudo EncodingType = -223
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EncLastRectPseudo EncodingType = -224
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EncCompressionLevel10 EncodingType = -247
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EncCompressionLevel9 EncodingType = -248
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EncCompressionLevel8 EncodingType = -249
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EncCompressionLevel7 EncodingType = -250
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EncCompressionLevel6 EncodingType = -251
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EncCompressionLevel5 EncodingType = -252
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EncCompressionLevel4 EncodingType = -253
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EncCompressionLevel3 EncodingType = -254
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EncCompressionLevel2 EncodingType = -255
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EncCompressionLevel1 EncodingType = -256
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EncQEMUPointerMotionChangePseudo EncodingType = -257
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EncQEMUExtendedKeyEventPseudo EncodingType = -258
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EncTightPng EncodingType = -260
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EncExtendedDesktopSizePseudo EncodingType = -308
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EncXvpPseudo EncodingType = -309
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EncFencePseudo EncodingType = -312
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EncContinuousUpdatesPseudo EncodingType = -313
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EncClientRedirect EncodingType = -311
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)
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var bPool = sync.Pool{
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New: func() interface{} {
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// The Pool's New function should generally only return pointer
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// types, since a pointer can be put into the return interface
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// value without an allocation:
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return new(bytes.Buffer)
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},
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}
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type Encoding interface {
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Type() EncodingType
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Read(Conn, *Rectangle) error
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Write(Conn, *Rectangle) error
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}
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func setBit(n uint8, pos uint8) uint8 {
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n |= (1 << pos)
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return n
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}
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func clrBit(n uint8, pos uint8) uint8 {
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n = n &^ (1 << pos)
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return n
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}
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func hasBit(n uint8, pos uint8) bool {
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v := n & (1 << pos)
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return (v > 0)
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}
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func getBit(n uint8, pos uint8) uint8 {
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n = n & (1 << pos)
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return n
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}
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