diff options
Diffstat (limited to 'render')
| -rw-r--r-- | render/render.go | 150 |
1 files changed, 65 insertions, 85 deletions
diff --git a/render/render.go b/render/render.go index 223162a..839a05d 100644 --- a/render/render.go +++ b/render/render.go @@ -639,52 +639,6 @@ func init() { xgb.NewExtErrorFuncs["RENDER"][0] = PictFormatErrorNew } -// BadPictOp is the error number for a BadPictOp. -const BadPictOp = 2 - -type PictOpError struct { - Sequence uint16 - NiceName string -} - -// PictOpErrorNew constructs a PictOpError value that implements xgb.Error from a byte slice. -func PictOpErrorNew(buf []byte) xgb.Error { - v := PictOpError{} - v.NiceName = "PictOp" - - b := 1 // skip error determinant - b += 1 // don't read error number - - v.Sequence = xgb.Get16(buf[b:]) - b += 2 - - return v -} - -// SequenceId returns the sequence id attached to the BadPictOp error. -// This is mostly used internally. -func (err PictOpError) SequenceId() uint16 { - return err.Sequence -} - -// BadId returns the 'BadValue' number if one exists for the BadPictOp error. If no bad value exists, 0 is returned. -func (err PictOpError) BadId() uint32 { - return 0 -} - -// Error returns a rudimentary string representation of the BadPictOp error. - -func (err PictOpError) Error() string { - fieldVals := make([]string, 0, 0) - fieldVals = append(fieldVals, "NiceName: "+err.NiceName) - fieldVals = append(fieldVals, xgb.Sprintf("Sequence: %d", err.Sequence)) - return "BadPictOp {" + xgb.StringsJoin(fieldVals, ", ") + "}" -} - -func init() { - xgb.NewExtErrorFuncs["RENDER"][2] = PictOpErrorNew -} - const ( PictOpClear = 0 PictOpSrc = 1 @@ -741,6 +695,52 @@ const ( PictOpHSLLuminosity = 62 ) +// BadPictOp is the error number for a BadPictOp. +const BadPictOp = 2 + +type PictOpError struct { + Sequence uint16 + NiceName string +} + +// PictOpErrorNew constructs a PictOpError value that implements xgb.Error from a byte slice. +func PictOpErrorNew(buf []byte) xgb.Error { + v := PictOpError{} + v.NiceName = "PictOp" + + b := 1 // skip error determinant + b += 1 // don't read error number + + v.Sequence = xgb.Get16(buf[b:]) + b += 2 + + return v +} + +// SequenceId returns the sequence id attached to the BadPictOp error. +// This is mostly used internally. +func (err PictOpError) SequenceId() uint16 { + return err.Sequence +} + +// BadId returns the 'BadValue' number if one exists for the BadPictOp error. If no bad value exists, 0 is returned. +func (err PictOpError) BadId() uint32 { + return 0 +} + +// Error returns a rudimentary string representation of the BadPictOp error. + +func (err PictOpError) Error() string { + fieldVals := make([]string, 0, 0) + fieldVals = append(fieldVals, "NiceName: "+err.NiceName) + fieldVals = append(fieldVals, xgb.Sprintf("Sequence: %d", err.Sequence)) + return "BadPictOp {" + xgb.StringsJoin(fieldVals, ", ") + "}" +} + +func init() { + xgb.NewExtErrorFuncs["RENDER"][2] = PictOpErrorNew +} + const ( PictTypeIndexed = 0 PictTypeDirect = 1 @@ -1613,7 +1613,7 @@ func (cook AddGlyphsCookie) Check() error { // Write request to wire for AddGlyphs // addGlyphsRequest writes a AddGlyphs request to a byte slice. func addGlyphsRequest(c *xgb.Conn, Glyphset Glyphset, GlyphsLen uint32, Glyphids []uint32, Glyphs []Glyphinfo, Data []byte) []byte { - size := xgb.Pad(((((12 + xgb.Pad((int(GlyphsLen) * 4))) + 4) + xgb.Pad((int(GlyphsLen) * 12))) + xgb.Pad((len(Data) * 1)))) + size := xgb.Pad((((12 + xgb.Pad((int(GlyphsLen) * 4))) + xgb.Pad((int(GlyphsLen) * 12))) + xgb.Pad((len(Data) * 1)))) b := 0 buf := make([]byte, size) @@ -1625,7 +1625,7 @@ func addGlyphsRequest(c *xgb.Conn, Glyphset Glyphset, GlyphsLen uint32, Glyphids buf[b] = 20 // request opcode b += 1 - blen := b + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units b += 2 xgb.Put32(buf[b:], uint32(Glyphset)) @@ -1639,16 +1639,12 @@ func addGlyphsRequest(c *xgb.Conn, Glyphset Glyphset, GlyphsLen uint32, Glyphids b += 4 } - b = (b + 3) & ^3 // alignment gap - b += GlyphinfoListBytes(buf[b:], Glyphs) copy(buf[b:], Data[:len(Data)]) b += int(len(Data)) - b = xgb.Pad(b) - xgb.Put16(buf[blen:], uint16(b/4)) // write request size in 4-byte units - return buf[:b] + return buf } // AddTrapsCookie is a cookie used only for AddTraps requests. @@ -1760,7 +1756,7 @@ func (cook ChangePictureCookie) Check() error { // Write request to wire for ChangePicture // changePictureRequest writes a ChangePicture request to a byte slice. func changePictureRequest(c *xgb.Conn, Picture Picture, ValueMask uint32, ValueList []uint32) []byte { - size := xgb.Pad((8 + (4 + xgb.Pad((4 * xgb.PopCount(int(ValueMask))))))) + size := xgb.Pad((12 + xgb.Pad((4 * xgb.PopCount(int(ValueMask)))))) b := 0 buf := make([]byte, size) @@ -1780,6 +1776,7 @@ func changePictureRequest(c *xgb.Conn, Picture Picture, ValueMask uint32, ValueL xgb.Put32(buf[b:], ValueMask) b += 4 + for i := 0; i < xgb.PopCount(int(ValueMask)); i++ { xgb.Put32(buf[b:], ValueList[i]) b += 4 @@ -2240,7 +2237,7 @@ func (cook CreateConicalGradientCookie) Check() error { // Write request to wire for CreateConicalGradient // createConicalGradientRequest writes a CreateConicalGradient request to a byte slice. func createConicalGradientRequest(c *xgb.Conn, Picture Picture, Center Pointfix, Angle Fixed, NumStops uint32, Stops []Fixed, Colors []Color) []byte { - size := xgb.Pad((((24 + xgb.Pad((int(NumStops) * 4))) + 4) + xgb.Pad((int(NumStops) * 8)))) + size := xgb.Pad(((24 + xgb.Pad((int(NumStops) * 4))) + xgb.Pad((int(NumStops) * 8)))) b := 0 buf := make([]byte, size) @@ -2252,7 +2249,7 @@ func createConicalGradientRequest(c *xgb.Conn, Picture Picture, Center Pointfix, buf[b] = 36 // request opcode b += 1 - blen := b + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units b += 2 xgb.Put32(buf[b:], uint32(Picture)) @@ -2275,13 +2272,9 @@ func createConicalGradientRequest(c *xgb.Conn, Picture Picture, Center Pointfix, b += 4 } - b = (b + 3) & ^3 // alignment gap - b += ColorListBytes(buf[b:], Colors) - b = xgb.Pad(b) - xgb.Put16(buf[blen:], uint16(b/4)) // write request size in 4-byte units - return buf[:b] + return buf } // CreateCursorCookie is a cookie used only for CreateCursor requests. @@ -2458,7 +2451,7 @@ func (cook CreateLinearGradientCookie) Check() error { // Write request to wire for CreateLinearGradient // createLinearGradientRequest writes a CreateLinearGradient request to a byte slice. func createLinearGradientRequest(c *xgb.Conn, Picture Picture, P1 Pointfix, P2 Pointfix, NumStops uint32, Stops []Fixed, Colors []Color) []byte { - size := xgb.Pad((((28 + xgb.Pad((int(NumStops) * 4))) + 4) + xgb.Pad((int(NumStops) * 8)))) + size := xgb.Pad(((28 + xgb.Pad((int(NumStops) * 4))) + xgb.Pad((int(NumStops) * 8)))) b := 0 buf := make([]byte, size) @@ -2470,7 +2463,7 @@ func createLinearGradientRequest(c *xgb.Conn, Picture Picture, P1 Pointfix, P2 P buf[b] = 34 // request opcode b += 1 - blen := b + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units b += 2 xgb.Put32(buf[b:], uint32(Picture)) @@ -2496,13 +2489,9 @@ func createLinearGradientRequest(c *xgb.Conn, Picture Picture, P1 Pointfix, P2 P b += 4 } - b = (b + 3) & ^3 // alignment gap - b += ColorListBytes(buf[b:], Colors) - b = xgb.Pad(b) - xgb.Put16(buf[blen:], uint16(b/4)) // write request size in 4-byte units - return buf[:b] + return buf } // CreatePictureCookie is a cookie used only for CreatePicture requests. @@ -2545,7 +2534,7 @@ func (cook CreatePictureCookie) Check() error { // Write request to wire for CreatePicture // createPictureRequest writes a CreatePicture request to a byte slice. func createPictureRequest(c *xgb.Conn, Pid Picture, Drawable xproto.Drawable, Format Pictformat, ValueMask uint32, ValueList []uint32) []byte { - size := xgb.Pad((16 + (4 + xgb.Pad((4 * xgb.PopCount(int(ValueMask))))))) + size := xgb.Pad((20 + xgb.Pad((4 * xgb.PopCount(int(ValueMask)))))) b := 0 buf := make([]byte, size) @@ -2571,6 +2560,7 @@ func createPictureRequest(c *xgb.Conn, Pid Picture, Drawable xproto.Drawable, Fo xgb.Put32(buf[b:], ValueMask) b += 4 + for i := 0; i < xgb.PopCount(int(ValueMask)); i++ { xgb.Put32(buf[b:], ValueList[i]) b += 4 @@ -2620,7 +2610,7 @@ func (cook CreateRadialGradientCookie) Check() error { // Write request to wire for CreateRadialGradient // createRadialGradientRequest writes a CreateRadialGradient request to a byte slice. func createRadialGradientRequest(c *xgb.Conn, Picture Picture, Inner Pointfix, Outer Pointfix, InnerRadius Fixed, OuterRadius Fixed, NumStops uint32, Stops []Fixed, Colors []Color) []byte { - size := xgb.Pad((((36 + xgb.Pad((int(NumStops) * 4))) + 4) + xgb.Pad((int(NumStops) * 8)))) + size := xgb.Pad(((36 + xgb.Pad((int(NumStops) * 4))) + xgb.Pad((int(NumStops) * 8)))) b := 0 buf := make([]byte, size) @@ -2632,7 +2622,7 @@ func createRadialGradientRequest(c *xgb.Conn, Picture Picture, Inner Pointfix, O buf[b] = 35 // request opcode b += 1 - blen := b + xgb.Put16(buf[b:], uint16(size/4)) // write request size in 4-byte units b += 2 xgb.Put32(buf[b:], uint32(Picture)) @@ -2664,13 +2654,9 @@ func createRadialGradientRequest(c *xgb.Conn, Picture Picture, Inner Pointfix, O b += 4 } - b = (b + 3) & ^3 // alignment gap - b += ColorListBytes(buf[b:], Colors) - b = xgb.Pad(b) - xgb.Put16(buf[blen:], uint16(b/4)) // write request size in 4-byte units - return buf[:b] + return buf } // CreateSolidFillCookie is a cookie used only for CreateSolidFill requests. @@ -3156,11 +3142,9 @@ type QueryPictFormatsReply struct { NumVisuals uint32 NumSubpixel uint32 // padding: 4 bytes - Formats []Pictforminfo // size: xgb.Pad((int(NumFormats) * 28)) - // alignment gap to multiple of 4 - Screens []Pictscreen // size: PictscreenListSize(Screens) - // alignment gap to multiple of 4 - Subpixels []uint32 // size: xgb.Pad((int(NumSubpixel) * 4)) + Formats []Pictforminfo // size: xgb.Pad((int(NumFormats) * 28)) + Screens []Pictscreen // size: PictscreenListSize(Screens) + Subpixels []uint32 // size: xgb.Pad((int(NumSubpixel) * 4)) } // Reply blocks and returns the reply data for a QueryPictFormats request. @@ -3208,13 +3192,9 @@ func queryPictFormatsReply(buf []byte) *QueryPictFormatsReply { v.Formats = make([]Pictforminfo, v.NumFormats) b += PictforminfoReadList(buf[b:], v.Formats) - b = (b + 3) & ^3 // alignment gap - v.Screens = make([]Pictscreen, v.NumScreens) b += PictscreenReadList(buf[b:], v.Screens) - b = (b + 3) & ^3 // alignment gap - v.Subpixels = make([]uint32, v.NumSubpixel) for i := 0; i < int(v.NumSubpixel); i++ { v.Subpixels[i] = xgb.Get32(buf[b:]) |