VideoTools/vendor/github.com/srwiley/oksvg/svg_path.go
Stu Leak 68df790d27 Fix player frame generation and video playback
Major improvements to UnifiedPlayer:

1. GetFrameImage() now works when paused for responsive UI updates
2. Play() method properly starts FFmpeg process
3. Frame display loop runs continuously for smooth video display
4. Disabled audio temporarily to fix video playback fundamentals
5. Simplified FFmpeg command to focus on video stream only

Player now:
- Generates video frames correctly
- Shows video when paused
- Has responsive progress tracking
- Starts playback properly

Next steps: Re-enable audio playback once video is stable
2026-01-07 22:20:00 -05:00

110 lines
3.4 KiB
Go

// Copyright 2017 The oksvg Authors. All rights reserved.
// created: 2/12/2017 by S.R.Wiley
//
// utils.go implements translation of an SVG2.0 path into a rasterx Path.
package oksvg
import (
"image/color"
"github.com/srwiley/rasterx"
"golang.org/x/image/math/fixed"
)
// SvgPath binds a style to a path.
type SvgPath struct {
PathStyle
Path rasterx.Path
}
// Draw the compiled SvgPath into the Dasher.
func (svgp *SvgPath) Draw(r *rasterx.Dasher, opacity float64) {
svgp.DrawTransformed(r, opacity, rasterx.Identity)
}
// DrawTransformed draws the compiled SvgPath into the Dasher while applying transform t.
func (svgp *SvgPath) DrawTransformed(r *rasterx.Dasher, opacity float64, t rasterx.Matrix2D) {
m := svgp.mAdder.M
svgp.mAdder.M = t.Mult(m)
defer func() { svgp.mAdder.M = m }() // Restore untransformed matrix
if svgp.fillerColor != nil {
r.Clear()
rf := &r.Filler
rf.SetWinding(svgp.UseNonZeroWinding)
svgp.mAdder.Adder = rf // This allows transformations to be applied
svgp.Path.AddTo(&svgp.mAdder)
switch fillerColor := svgp.fillerColor.(type) {
case color.Color:
rf.SetColor(rasterx.ApplyOpacity(fillerColor, svgp.FillOpacity*opacity))
case rasterx.Gradient:
if fillerColor.Units == rasterx.ObjectBoundingBox {
fRect := rf.Scanner.GetPathExtent()
mnx, mny := float64(fRect.Min.X)/64, float64(fRect.Min.Y)/64
mxx, mxy := float64(fRect.Max.X)/64, float64(fRect.Max.Y)/64
fillerColor.Bounds.X, fillerColor.Bounds.Y = mnx, mny
fillerColor.Bounds.W, fillerColor.Bounds.H = mxx-mnx, mxy-mny
}
rf.SetColor(fillerColor.GetColorFunction(svgp.FillOpacity * opacity))
}
rf.Draw()
// default is true
rf.SetWinding(true)
}
if svgp.linerColor != nil {
r.Clear()
svgp.mAdder.Adder = r
lineGap := svgp.LineGap
if lineGap == nil {
lineGap = DefaultStyle.LineGap
}
lineCap := svgp.LineCap
if lineCap == nil {
lineCap = DefaultStyle.LineCap
}
leadLineCap := lineCap
if svgp.LeadLineCap != nil {
leadLineCap = svgp.LeadLineCap
}
r.SetStroke(fixed.Int26_6(svgp.LineWidth*64),
fixed.Int26_6(svgp.MiterLimit*64), leadLineCap, lineCap,
lineGap, svgp.LineJoin, svgp.Dash, svgp.DashOffset)
svgp.Path.AddTo(&svgp.mAdder)
switch linerColor := svgp.linerColor.(type) {
case color.Color:
r.SetColor(rasterx.ApplyOpacity(linerColor, svgp.LineOpacity*opacity))
case rasterx.Gradient:
if linerColor.Units == rasterx.ObjectBoundingBox {
fRect := r.Scanner.GetPathExtent()
mnx, mny := float64(fRect.Min.X)/64, float64(fRect.Min.Y)/64
mxx, mxy := float64(fRect.Max.X)/64, float64(fRect.Max.Y)/64
linerColor.Bounds.X, linerColor.Bounds.Y = mnx, mny
linerColor.Bounds.W, linerColor.Bounds.H = mxx-mnx, mxy-mny
}
r.SetColor(linerColor.GetColorFunction(svgp.LineOpacity * opacity))
}
r.Draw()
}
}
// GetFillColor returns the fill color of the SvgPath if one is defined and otherwise returns colornames.Black
func (svgp *SvgPath) GetFillColor() color.Color {
return getColor(svgp.fillerColor)
}
// GetLineColor returns the stroke color of the SvgPath if one is defined and otherwise returns colornames.Black
func (svgp *SvgPath) GetLineColor() color.Color {
return getColor(svgp.linerColor)
}
// SetFillColor sets the fill color of the SvgPath
func (svgp *SvgPath) SetFillColor(clr color.Color) {
svgp.fillerColor = clr
}
// SetLineColor sets the line color of the SvgPath
func (svgp *SvgPath) SetLineColor(clr color.Color) {
svgp.linerColor = clr
}