op,op/paint: remove aux awareness from Ops

Aux data is now entirely confined to the writers (Path) and the
ops Reader parser.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-10-14 20:20:56 +02:00
parent 41eb3807f7
commit d9100b506f
2 changed files with 27 additions and 63 deletions
+16 -14
View File
@@ -19,6 +19,7 @@ import (
// supplied to Begin.
type Path struct {
ops *op.Ops
pc int
firstVert int
nverts int
maxy float32
@@ -50,6 +51,8 @@ func (p ClipOp) Add(o *op.Ops) {
func (p *Path) Begin(ops *op.Ops) {
p.ops = ops
p.macro.Record(ops)
ops.Write([]byte{byte(opconst.TypeAux)})
p.pc = ops.PC()
}
// MoveTo moves the pen to the given position.
@@ -62,7 +65,7 @@ func (p *Path) Move(to f32.Point) {
// end completes the current contour.
func (p *Path) end() {
aux := p.ops.Aux()
aux := p.ops.Data()[p.pc:]
bo := binary.LittleEndian
// Fill in maximal Y coordinates of the NW and NE corners.
for i := p.firstVert; i < p.nverts; i++ {
@@ -246,20 +249,19 @@ func (p *Path) vertex(cornerx, cornery int16, ctrl, to f32.Point) {
ToX: to.X,
ToY: to.Y,
}
data := make([]byte, path.VertStride+1)
data[0] = byte(opconst.TypeAux)
data := make([]byte, path.VertStride)
bo := binary.LittleEndian
data[1] = byte(uint16(v.CornerX))
data[2] = byte(uint16(v.CornerX) >> 8)
data[3] = byte(uint16(v.CornerY))
data[4] = byte(uint16(v.CornerY) >> 8)
bo.PutUint32(data[5:], math.Float32bits(v.MaxY))
bo.PutUint32(data[9:], math.Float32bits(v.FromX))
bo.PutUint32(data[13:], math.Float32bits(v.FromY))
bo.PutUint32(data[17:], math.Float32bits(v.CtrlX))
bo.PutUint32(data[21:], math.Float32bits(v.CtrlY))
bo.PutUint32(data[25:], math.Float32bits(v.ToX))
bo.PutUint32(data[29:], math.Float32bits(v.ToY))
data[0] = byte(uint16(v.CornerX))
data[1] = byte(uint16(v.CornerX) >> 8)
data[2] = byte(uint16(v.CornerY))
data[3] = byte(uint16(v.CornerY) >> 8)
bo.PutUint32(data[6:], math.Float32bits(v.MaxY))
bo.PutUint32(data[8:], math.Float32bits(v.FromX))
bo.PutUint32(data[12:], math.Float32bits(v.FromY))
bo.PutUint32(data[16:], math.Float32bits(v.CtrlX))
bo.PutUint32(data[20:], math.Float32bits(v.CtrlY))
bo.PutUint32(data[24:], math.Float32bits(v.ToX))
bo.PutUint32(data[28:], math.Float32bits(v.ToY))
p.ops.Write(data)
}