haven/nexgb/xvmc/xvmc.go

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// Package xvmc is the X client API for the XVideo-MotionCompensation extension.
package xvmc
// This file is automatically generated from xvmc.xml. Edit at your peril!
import (
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xgb "janouch.name/haven/nexgb"
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"janouch.name/haven/nexgb/xproto"
"janouch.name/haven/nexgb/xv"
)
const (
MajorVersion = 1
MinorVersion = 1
)
// Init must be called before using the XVideo-MotionCompensation extension.
func Init(c *xgb.Conn) error {
reply, err := xproto.QueryExtension(c, 25, "XVideo-MotionCompensation").Reply()
switch {
case err != nil:
return err
case !reply.Present:
return xgb.Errorf("No extension named XVideo-MotionCompensation could be found on on the server.")
}
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c.ExtLock.Lock()
c.Extensions["XVideo-MotionCompensation"] = reply.MajorOpcode
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c.ExtLock.Unlock()
for evNum, fun := range xgb.NewExtEventFuncs["XVideo-MotionCompensation"] {
xgb.NewEventFuncs[int(reply.FirstEvent)+evNum] = fun
}
for errNum, fun := range xgb.NewExtErrorFuncs["XVideo-MotionCompensation"] {
xgb.NewErrorFuncs[int(reply.FirstError)+errNum] = fun
}
return nil
}
func init() {
xgb.NewExtEventFuncs["XVideo-MotionCompensation"] = make(map[int]xgb.NewEventFun)
xgb.NewExtErrorFuncs["XVideo-MotionCompensation"] = make(map[int]xgb.NewErrorFun)
}
type Context uint32
func NewContextId(c *xgb.Conn) (Context, error) {
id, err := c.NewId()
if err != nil {
return 0, err
}
return Context(id), nil
}
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type Subpicture uint32
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func NewSubpictureId(c *xgb.Conn) (Subpicture, error) {
id, err := c.NewId()
if err != nil {
return 0, err
}
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return Subpicture(id), nil
}
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type Surface uint32
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func NewSurfaceId(c *xgb.Conn) (Surface, error) {
id, err := c.NewId()
if err != nil {
return 0, err
}
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return Surface(id), nil
}
type SurfaceInfo struct {
Id Surface
ChromaFormat uint16
Pad0 uint16
MaxWidth uint16
MaxHeight uint16
SubpictureMaxWidth uint16
SubpictureMaxHeight uint16
McType uint32
Flags uint32
}
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// SurfaceInfoRead reads a byte slice into a SurfaceInfo value.
func SurfaceInfoRead(buf []byte, v *SurfaceInfo) int {
b := 0
v.Id = Surface(xgb.Get32(buf[b:]))
b += 4
v.ChromaFormat = xgb.Get16(buf[b:])
b += 2
v.Pad0 = xgb.Get16(buf[b:])
b += 2
v.MaxWidth = xgb.Get16(buf[b:])
b += 2
v.MaxHeight = xgb.Get16(buf[b:])
b += 2
v.SubpictureMaxWidth = xgb.Get16(buf[b:])
b += 2
v.SubpictureMaxHeight = xgb.Get16(buf[b:])
b += 2
v.McType = xgb.Get32(buf[b:])
b += 4
v.Flags = xgb.Get32(buf[b:])
b += 4
return b
}
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// SurfaceInfoReadList reads a byte slice into a list of SurfaceInfo values.
func SurfaceInfoReadList(buf []byte, dest []SurfaceInfo) int {
b := 0
for i := 0; i < len(dest); i++ {
dest[i] = SurfaceInfo{}
b += SurfaceInfoRead(buf[b:], &dest[i])
}
return xgb.Pad(b)
}
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// Bytes writes a SurfaceInfo value to a byte slice.
func (v SurfaceInfo) Bytes() []byte {
buf := make([]byte, 24)
b := 0
xgb.Put32(buf[b:], uint32(v.Id))
b += 4
xgb.Put16(buf[b:], v.ChromaFormat)
b += 2
xgb.Put16(buf[b:], v.Pad0)
b += 2
xgb.Put16(buf[b:], v.MaxWidth)
b += 2
xgb.Put16(buf[b:], v.MaxHeight)
b += 2
xgb.Put16(buf[b:], v.SubpictureMaxWidth)
b += 2
xgb.Put16(buf[b:], v.SubpictureMaxHeight)
b += 2
xgb.Put32(buf[b:], v.McType)
b += 4
xgb.Put32(buf[b:], v.Flags)
b += 4
return buf[:b]
}
// SurfaceInfoListBytes writes a list of SurfaceInfo values to a byte slice.
func SurfaceInfoListBytes(buf []byte, list []SurfaceInfo) int {
b := 0
var structBytes []byte
for _, item := range list {
structBytes = item.Bytes()
copy(buf[b:], structBytes)
b += len(structBytes)
}
return xgb.Pad(b)
}
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// Skipping definition for base type 'Bool'
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// Skipping definition for base type 'Byte'
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// Skipping definition for base type 'Card8'
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// Skipping definition for base type 'Char'
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// Skipping definition for base type 'Void'
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// Skipping definition for base type 'Double'
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// Skipping definition for base type 'Float'
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// Skipping definition for base type 'Int16'
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// Skipping definition for base type 'Int32'
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// Skipping definition for base type 'Int8'
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// Skipping definition for base type 'Card16'
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// Skipping definition for base type 'Card32'
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// CreateContextCookie is a cookie used only for CreateContext requests.
type CreateContextCookie struct {
*xgb.Cookie
}
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// CreateContext sends a checked request.
// If an error occurs, it will be returned with the reply by calling CreateContextCookie.Reply.
func CreateContext(c *xgb.Conn, ContextId Context, PortId xv.Port, SurfaceId Surface, Width, Height uint16, Flags uint32) CreateContextCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'CreateContext' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
c.NewRequest(createContextRequest(c, ContextId, PortId, SurfaceId, Width, Height, Flags), cookie)
return CreateContextCookie{cookie}
}
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// CreateContextUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func CreateContextUnchecked(c *xgb.Conn, ContextId Context, PortId xv.Port, SurfaceId Surface, Width, Height uint16, Flags uint32) CreateContextCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'CreateContext' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
c.NewRequest(createContextRequest(c, ContextId, PortId, SurfaceId, Width, Height, Flags), cookie)
return CreateContextCookie{cookie}
}
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// CreateContextReply represents the data returned from a CreateContext request.
type CreateContextReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
WidthActual uint16
HeightActual uint16
FlagsReturn uint32
// padding: 20 bytes
PrivData []uint32 // size: xgb.Pad((int(Length) * 4))
}
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// Reply blocks and returns the reply data for a CreateContext request.
func (cook CreateContextCookie) Reply() (*CreateContextReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return createContextReply(buf), nil
}
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// createContextReply reads a byte slice into a CreateContextReply value.
func createContextReply(buf []byte) *CreateContextReply {
v := new(CreateContextReply)
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.WidthActual = xgb.Get16(buf[b:])
b += 2
v.HeightActual = xgb.Get16(buf[b:])
b += 2
v.FlagsReturn = xgb.Get32(buf[b:])
b += 4
b += 20 // padding
v.PrivData = make([]uint32, v.Length)
for i := 0; i < int(v.Length); i++ {
v.PrivData[i] = xgb.Get32(buf[b:])
b += 4
}
return v
}
// createContextRequest writes a CreateContext request to a byte slice for transfer.
func createContextRequest(c *xgb.Conn, ContextId Context, PortId xv.Port, SurfaceId Surface, Width, Height uint16, Flags uint32) []byte {
size := 24
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
buf[b] = 2 // 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(ContextId))
b += 4
xgb.Put32(buf[b:], uint32(PortId))
b += 4
xgb.Put32(buf[b:], uint32(SurfaceId))
b += 4
xgb.Put16(buf[b:], Width)
b += 2
xgb.Put16(buf[b:], Height)
b += 2
xgb.Put32(buf[b:], Flags)
b += 4
return buf
}
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// CreateSubpictureCookie is a cookie used only for CreateSubpicture requests.
type CreateSubpictureCookie struct {
*xgb.Cookie
}
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// CreateSubpicture sends a checked request.
// If an error occurs, it will be returned with the reply by calling CreateSubpictureCookie.Reply.
func CreateSubpicture(c *xgb.Conn, SubpictureId Subpicture, Context Context, XvimageId uint32, Width, Height uint16) CreateSubpictureCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'CreateSubpicture' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
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cookie := c.NewCookie(true, true)
c.NewRequest(createSubpictureRequest(c, SubpictureId, Context, XvimageId, Width, Height), cookie)
return CreateSubpictureCookie{cookie}
}
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// CreateSubpictureUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func CreateSubpictureUnchecked(c *xgb.Conn, SubpictureId Subpicture, Context Context, XvimageId uint32, Width, Height uint16) CreateSubpictureCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'CreateSubpicture' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
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cookie := c.NewCookie(false, true)
c.NewRequest(createSubpictureRequest(c, SubpictureId, Context, XvimageId, Width, Height), cookie)
return CreateSubpictureCookie{cookie}
}
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// CreateSubpictureReply represents the data returned from a CreateSubpicture request.
type CreateSubpictureReply struct {
Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
WidthActual uint16
HeightActual uint16
NumPaletteEntries uint16
EntryBytes uint16
ComponentOrder []byte // size: 4
// padding: 12 bytes
PrivData []uint32 // size: xgb.Pad((int(Length) * 4))
}
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// Reply blocks and returns the reply data for a CreateSubpicture request.
func (cook CreateSubpictureCookie) Reply() (*CreateSubpictureReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return createSubpictureReply(buf), nil
}
// createSubpictureReply reads a byte slice into a CreateSubpictureReply value.
func createSubpictureReply(buf []byte) *CreateSubpictureReply {
v := new(CreateSubpictureReply)
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.WidthActual = xgb.Get16(buf[b:])
b += 2
v.HeightActual = xgb.Get16(buf[b:])
b += 2
v.NumPaletteEntries = xgb.Get16(buf[b:])
b += 2
v.EntryBytes = xgb.Get16(buf[b:])
b += 2
v.ComponentOrder = make([]byte, 4)
copy(v.ComponentOrder[:4], buf[b:])
b += int(4)
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b += 12 // padding
v.PrivData = make([]uint32, v.Length)
for i := 0; i < int(v.Length); i++ {
v.PrivData[i] = xgb.Get32(buf[b:])
b += 4
}
return v
}
// createSubpictureRequest writes a CreateSubpicture request to a byte slice for transfer.
func createSubpictureRequest(c *xgb.Conn, SubpictureId Subpicture, Context Context, XvimageId uint32, Width, Height uint16) []byte {
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size := 20
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
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buf[b] = 6 // request opcode
b += 1
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
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xgb.Put32(buf[b:], uint32(SubpictureId))
b += 4
xgb.Put32(buf[b:], uint32(Context))
b += 4
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xgb.Put32(buf[b:], XvimageId)
b += 4
xgb.Put16(buf[b:], Width)
b += 2
xgb.Put16(buf[b:], Height)
b += 2
return buf
}
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// CreateSurfaceCookie is a cookie used only for CreateSurface requests.
type CreateSurfaceCookie struct {
*xgb.Cookie
}
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// CreateSurface sends a checked request.
// If an error occurs, it will be returned with the reply by calling CreateSurfaceCookie.Reply.
func CreateSurface(c *xgb.Conn, SurfaceId Surface, ContextId Context) CreateSurfaceCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'CreateSurface' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
c.NewRequest(createSurfaceRequest(c, SurfaceId, ContextId), cookie)
return CreateSurfaceCookie{cookie}
}
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// CreateSurfaceUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func CreateSurfaceUnchecked(c *xgb.Conn, SurfaceId Surface, ContextId Context) CreateSurfaceCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'CreateSurface' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
c.NewRequest(createSurfaceRequest(c, SurfaceId, ContextId), cookie)
return CreateSurfaceCookie{cookie}
}
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// CreateSurfaceReply represents the data returned from a CreateSurface request.
type CreateSurfaceReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
// padding: 24 bytes
PrivData []uint32 // size: xgb.Pad((int(Length) * 4))
}
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// Reply blocks and returns the reply data for a CreateSurface request.
func (cook CreateSurfaceCookie) Reply() (*CreateSurfaceReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return createSurfaceReply(buf), nil
}
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// createSurfaceReply reads a byte slice into a CreateSurfaceReply value.
func createSurfaceReply(buf []byte) *CreateSurfaceReply {
v := new(CreateSurfaceReply)
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 += 24 // padding
v.PrivData = make([]uint32, v.Length)
for i := 0; i < int(v.Length); i++ {
v.PrivData[i] = xgb.Get32(buf[b:])
b += 4
}
return v
}
// createSurfaceRequest writes a CreateSurface request to a byte slice for transfer.
func createSurfaceRequest(c *xgb.Conn, SurfaceId Surface, ContextId Context) []byte {
size := 12
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
buf[b] = 4 // 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(SurfaceId))
b += 4
xgb.Put32(buf[b:], uint32(ContextId))
b += 4
return buf
}
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// DestroyContextCookie is a cookie used only for DestroyContext requests.
type DestroyContextCookie struct {
*xgb.Cookie
}
// DestroyContext sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func DestroyContext(c *xgb.Conn, ContextId Context) DestroyContextCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'DestroyContext' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, false)
c.NewRequest(destroyContextRequest(c, ContextId), cookie)
return DestroyContextCookie{cookie}
}
// DestroyContextChecked sends a checked request.
// If an error occurs, it can be retrieved using DestroyContextCookie.Check.
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func DestroyContextChecked(c *xgb.Conn, ContextId Context) DestroyContextCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'DestroyContext' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, false)
c.NewRequest(destroyContextRequest(c, ContextId), cookie)
return DestroyContextCookie{cookie}
}
// Check returns an error if one occurred for checked requests that are not expecting a reply.
// This cannot be called for requests expecting a reply, nor for unchecked requests.
func (cook DestroyContextCookie) Check() error {
return cook.Cookie.Check()
}
// destroyContextRequest writes a DestroyContext request to a byte slice for transfer.
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func destroyContextRequest(c *xgb.Conn, ContextId Context) []byte {
size := 8
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
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b += 1
buf[b] = 3 // 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(ContextId))
b += 4
return buf
}
// DestroySubpictureCookie is a cookie used only for DestroySubpicture requests.
type DestroySubpictureCookie struct {
*xgb.Cookie
}
// DestroySubpicture sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func DestroySubpicture(c *xgb.Conn, SubpictureId Subpicture) DestroySubpictureCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'DestroySubpicture' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, false)
c.NewRequest(destroySubpictureRequest(c, SubpictureId), cookie)
return DestroySubpictureCookie{cookie}
}
// DestroySubpictureChecked sends a checked request.
// If an error occurs, it can be retrieved using DestroySubpictureCookie.Check.
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func DestroySubpictureChecked(c *xgb.Conn, SubpictureId Subpicture) DestroySubpictureCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'DestroySubpicture' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, false)
c.NewRequest(destroySubpictureRequest(c, SubpictureId), cookie)
return DestroySubpictureCookie{cookie}
}
// Check returns an error if one occurred for checked requests that are not expecting a reply.
// This cannot be called for requests expecting a reply, nor for unchecked requests.
func (cook DestroySubpictureCookie) Check() error {
return cook.Cookie.Check()
}
// destroySubpictureRequest writes a DestroySubpicture request to a byte slice for transfer.
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func destroySubpictureRequest(c *xgb.Conn, SubpictureId Subpicture) []byte {
size := 8
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
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b += 1
buf[b] = 7 // 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(SubpictureId))
b += 4
return buf
}
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// DestroySurfaceCookie is a cookie used only for DestroySurface requests.
type DestroySurfaceCookie struct {
*xgb.Cookie
}
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// DestroySurface sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func DestroySurface(c *xgb.Conn, SurfaceId Surface) DestroySurfaceCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'DestroySurface' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, false)
c.NewRequest(destroySurfaceRequest(c, SurfaceId), cookie)
return DestroySurfaceCookie{cookie}
}
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// DestroySurfaceChecked sends a checked request.
// If an error occurs, it can be retrieved using DestroySurfaceCookie.Check.
func DestroySurfaceChecked(c *xgb.Conn, SurfaceId Surface) DestroySurfaceCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
panic("Cannot issue request 'DestroySurface' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, false)
c.NewRequest(destroySurfaceRequest(c, SurfaceId), cookie)
return DestroySurfaceCookie{cookie}
}
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// Check returns an error if one occurred for checked requests that are not expecting a reply.
// This cannot be called for requests expecting a reply, nor for unchecked requests.
func (cook DestroySurfaceCookie) Check() error {
return cook.Cookie.Check()
}
// destroySurfaceRequest writes a DestroySurface request to a byte slice for transfer.
func destroySurfaceRequest(c *xgb.Conn, SurfaceId Surface) []byte {
size := 8
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
buf[b] = 5 // 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(SurfaceId))
b += 4
return buf
}
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// ListSubpictureTypesCookie is a cookie used only for ListSubpictureTypes requests.
type ListSubpictureTypesCookie struct {
*xgb.Cookie
}
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// ListSubpictureTypes sends a checked request.
// If an error occurs, it will be returned with the reply by calling ListSubpictureTypesCookie.Reply.
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func ListSubpictureTypes(c *xgb.Conn, PortId xv.Port, SurfaceId Surface) ListSubpictureTypesCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'ListSubpictureTypes' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
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c.NewRequest(listSubpictureTypesRequest(c, PortId, SurfaceId), cookie)
return ListSubpictureTypesCookie{cookie}
}
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// ListSubpictureTypesUnchecked sends an unchecked request.
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// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
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func ListSubpictureTypesUnchecked(c *xgb.Conn, PortId xv.Port, SurfaceId Surface) ListSubpictureTypesCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'ListSubpictureTypes' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
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c.NewRequest(listSubpictureTypesRequest(c, PortId, SurfaceId), cookie)
return ListSubpictureTypesCookie{cookie}
}
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// ListSubpictureTypesReply represents the data returned from a ListSubpictureTypes request.
type ListSubpictureTypesReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
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Num uint32
// padding: 20 bytes
Types []xv.ImageFormatInfo // size: xv.ImageFormatInfoListSize(Types)
}
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// Reply blocks and returns the reply data for a ListSubpictureTypes request.
func (cook ListSubpictureTypesCookie) Reply() (*ListSubpictureTypesReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
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return listSubpictureTypesReply(buf), nil
}
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// listSubpictureTypesReply reads a byte slice into a ListSubpictureTypesReply value.
func listSubpictureTypesReply(buf []byte) *ListSubpictureTypesReply {
v := new(ListSubpictureTypesReply)
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
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v.Num = xgb.Get32(buf[b:])
b += 4
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b += 20 // padding
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v.Types = make([]xv.ImageFormatInfo, v.Num)
b += xv.ImageFormatInfoReadList(buf[b:], v.Types)
return v
}
// listSubpictureTypesRequest writes a ListSubpictureTypes request to a byte slice for transfer.
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func listSubpictureTypesRequest(c *xgb.Conn, PortId xv.Port, SurfaceId Surface) []byte {
size := 12
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
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buf[b] = 8 // request opcode
b += 1
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
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xgb.Put32(buf[b:], uint32(PortId))
b += 4
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xgb.Put32(buf[b:], uint32(SurfaceId))
b += 4
return buf
}
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// ListSurfaceTypesCookie is a cookie used only for ListSurfaceTypes requests.
type ListSurfaceTypesCookie struct {
*xgb.Cookie
}
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// ListSurfaceTypes sends a checked request.
// If an error occurs, it will be returned with the reply by calling ListSurfaceTypesCookie.Reply.
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func ListSurfaceTypes(c *xgb.Conn, PortId xv.Port) ListSurfaceTypesCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'ListSurfaceTypes' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
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cookie := c.NewCookie(true, true)
c.NewRequest(listSurfaceTypesRequest(c, PortId), cookie)
return ListSurfaceTypesCookie{cookie}
}
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// ListSurfaceTypesUnchecked sends an unchecked request.
// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
func ListSurfaceTypesUnchecked(c *xgb.Conn, PortId xv.Port) ListSurfaceTypesCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'ListSurfaceTypes' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
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cookie := c.NewCookie(false, true)
c.NewRequest(listSurfaceTypesRequest(c, PortId), cookie)
return ListSurfaceTypesCookie{cookie}
}
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// ListSurfaceTypesReply represents the data returned from a ListSurfaceTypes request.
type ListSurfaceTypesReply struct {
Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
Num uint32
// padding: 20 bytes
Surfaces []SurfaceInfo // size: xgb.Pad((int(Num) * 24))
}
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// Reply blocks and returns the reply data for a ListSurfaceTypes request.
func (cook ListSurfaceTypesCookie) Reply() (*ListSurfaceTypesReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
return listSurfaceTypesReply(buf), nil
}
// listSurfaceTypesReply reads a byte slice into a ListSurfaceTypesReply value.
func listSurfaceTypesReply(buf []byte) *ListSurfaceTypesReply {
v := new(ListSurfaceTypesReply)
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.Num = xgb.Get32(buf[b:])
b += 4
b += 20 // padding
v.Surfaces = make([]SurfaceInfo, v.Num)
b += SurfaceInfoReadList(buf[b:], v.Surfaces)
return v
}
// listSurfaceTypesRequest writes a ListSurfaceTypes request to a byte slice for transfer.
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func listSurfaceTypesRequest(c *xgb.Conn, PortId xv.Port) []byte {
size := 8
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
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buf[b] = 1 // request opcode
b += 1
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
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xgb.Put32(buf[b:], uint32(PortId))
b += 4
return buf
}
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// QueryVersionCookie is a cookie used only for QueryVersion requests.
type QueryVersionCookie struct {
*xgb.Cookie
}
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// QueryVersion sends a checked request.
// If an error occurs, it will be returned with the reply by calling QueryVersionCookie.Reply.
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func QueryVersion(c *xgb.Conn) QueryVersionCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(true, true)
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c.NewRequest(queryVersionRequest(c), cookie)
return QueryVersionCookie{cookie}
}
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// QueryVersionUnchecked sends an unchecked request.
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// If an error occurs, it can only be retrieved using xgb.WaitForEvent or xgb.PollForEvent.
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func QueryVersionUnchecked(c *xgb.Conn) QueryVersionCookie {
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c.ExtLock.RLock()
defer c.ExtLock.RUnlock()
if _, ok := c.Extensions["XVideo-MotionCompensation"]; !ok {
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panic("Cannot issue request 'QueryVersion' using the uninitialized extension 'XVideo-MotionCompensation'. xvmc.Init(connObj) must be called first.")
}
cookie := c.NewCookie(false, true)
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c.NewRequest(queryVersionRequest(c), cookie)
return QueryVersionCookie{cookie}
}
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// QueryVersionReply represents the data returned from a QueryVersion request.
type QueryVersionReply struct {
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Sequence uint16 // sequence number of the request for this reply
Length uint32 // number of bytes in this reply
// padding: 1 bytes
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Major uint32
Minor uint32
}
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// Reply blocks and returns the reply data for a QueryVersion request.
func (cook QueryVersionCookie) Reply() (*QueryVersionReply, error) {
buf, err := cook.Cookie.Reply()
if err != nil {
return nil, err
}
if buf == nil {
return nil, nil
}
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return queryVersionReply(buf), nil
}
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// queryVersionReply reads a byte slice into a QueryVersionReply value.
func queryVersionReply(buf []byte) *QueryVersionReply {
v := new(QueryVersionReply)
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
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v.Major = xgb.Get32(buf[b:])
b += 4
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v.Minor = xgb.Get32(buf[b:])
b += 4
return v
}
// queryVersionRequest writes a QueryVersion request to a byte slice for transfer.
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func queryVersionRequest(c *xgb.Conn) []byte {
size := 4
b := 0
buf := make([]byte, size)
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c.ExtLock.RLock()
buf[b] = c.Extensions["XVideo-MotionCompensation"]
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c.ExtLock.RUnlock()
b += 1
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buf[b] = 0 // request opcode
b += 1
xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units
b += 2
return buf
}