diff options
Diffstat (limited to 'nexgb/glx/glx.go')
| -rw-r--r-- | nexgb/glx/glx.go | 113 |
1 files changed, 105 insertions, 8 deletions
diff --git a/nexgb/glx/glx.go b/nexgb/glx/glx.go index cf72d9a..0ecc3b5 100644 --- a/nexgb/glx/glx.go +++ b/nexgb/glx/glx.go @@ -3165,14 +3165,14 @@ func getClipPlaneReply(buf []byte) *GetClipPlaneReply { v := new(GetClipPlaneReply) b := 1 // skip reply determinant - b += 1 // padding - v.Sequence = xgb.Get16(buf[b:]) b += 2 v.Length = xgb.Get32(buf[b:]) // 4-byte units b += 4 + b += 1 // padding + b += 24 // padding v.Data = make([]Float64, (int(v.Length) / 2)) @@ -4096,14 +4096,14 @@ func getDoublevReply(buf []byte) *GetDoublevReply { v := new(GetDoublevReply) b := 1 // skip reply determinant - b += 1 // padding - v.Sequence = xgb.Get16(buf[b:]) b += 2 v.Length = xgb.Get32(buf[b:]) // 4-byte units b += 4 + b += 1 // padding + b += 4 // padding v.N = xgb.Get32(buf[b:]) @@ -5340,14 +5340,14 @@ func getMapdvReply(buf []byte) *GetMapdvReply { v := new(GetMapdvReply) b := 1 // skip reply determinant - b += 1 // padding - v.Sequence = xgb.Get16(buf[b:]) b += 2 v.Length = xgb.Get32(buf[b:]) // 4-byte units b += 4 + b += 1 // padding + b += 4 // padding v.N = xgb.Get32(buf[b:]) @@ -7548,14 +7548,14 @@ func getTexGendvReply(buf []byte) *GetTexGendvReply { v := new(GetTexGendvReply) b := 1 // skip reply determinant - b += 1 // padding - v.Sequence = xgb.Get16(buf[b:]) b += 2 v.Length = xgb.Get32(buf[b:]) // 4-byte units b += 4 + b += 1 // padding + b += 4 // padding v.N = xgb.Get32(buf[b:]) @@ -8654,6 +8654,103 @@ func isDirectRequest(c *xgb.Conn, Context Context) []byte { return buf } +// IsEnabledCookie is a cookie used only for IsEnabled requests. +type IsEnabledCookie struct { + *xgb.Cookie +} + +// IsEnabled sends a checked request. +// If an error occurs, it will be returned with the reply by calling IsEnabledCookie.Reply() +func IsEnabled(c *xgb.Conn, ContextTag ContextTag, Capability uint32) IsEnabledCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["GLX"]; !ok { + panic("Cannot issue request 'IsEnabled' using the uninitialized extension 'GLX'. glx.Init(connObj) must be called first.") + } + cookie := c.NewCookie(true, true) + c.NewRequest(isEnabledRequest(c, ContextTag, Capability), cookie) + return IsEnabledCookie{cookie} +} + +// IsEnabledUnchecked sends an unchecked request. +// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent. +func IsEnabledUnchecked(c *xgb.Conn, ContextTag ContextTag, Capability uint32) IsEnabledCookie { + c.ExtLock.RLock() + defer c.ExtLock.RUnlock() + if _, ok := c.Extensions["GLX"]; !ok { + panic("Cannot issue request 'IsEnabled' using the uninitialized extension 'GLX'. glx.Init(connObj) must be called first.") + } + cookie := c.NewCookie(false, true) + c.NewRequest(isEnabledRequest(c, ContextTag, Capability), cookie) + return IsEnabledCookie{cookie} +} + +// IsEnabledReply represents the data returned from a IsEnabled request. +type IsEnabledReply struct { + Sequence uint16 // sequence number of the request for this reply + Length uint32 // number of bytes in this reply + // padding: 1 bytes + RetVal Bool32 +} + +// Reply blocks and returns the reply data for a IsEnabled request. +func (cook IsEnabledCookie) Reply() (*IsEnabledReply, error) { + buf, err := cook.Cookie.Reply() + if err != nil { + return nil, err + } + if buf == nil { + return nil, nil + } + return isEnabledReply(buf), nil +} + +// isEnabledReply reads a byte slice into a IsEnabledReply value. +func isEnabledReply(buf []byte) *IsEnabledReply { + v := new(IsEnabledReply) + b := 1 // skip reply determinant + + b += 1 // padding + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + v.Length = xgb.Get32(buf[b:]) // 4-byte units + b += 4 + + v.RetVal = Bool32(xgb.Get32(buf[b:])) + b += 4 + + return v +} + +// Write request to wire for IsEnabled +// isEnabledRequest writes a IsEnabled request to a byte slice. +func isEnabledRequest(c *xgb.Conn, ContextTag ContextTag, Capability uint32) []byte { + size := 12 + b := 0 + buf := make([]byte, size) + + c.ExtLock.RLock() + buf[b] = c.Extensions["GLX"] + c.ExtLock.RUnlock() + b += 1 + + buf[b] = 140 // request opcode + b += 1 + + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units + b += 2 + + xgb.Put32(buf[b:], uint32(ContextTag)) + b += 4 + + xgb.Put32(buf[b:], Capability) + b += 4 + + return buf +} + // IsListCookie is a cookie used only for IsList requests. type IsListCookie struct { *xgb.Cookie |