void _drawPathDrawMeshCallback(uiPaint p, uiMeshMesh fillMesh, uiMeshMesh strokeMesh, bool convex, float alpha,
float strokeMult, Texture tex,
uiRect textBlobBounds, TextBlobMesh textMesh, bool notEmoji)
{
if (!this._applyClip(fillMesh.bounds))
{
ObjectPool <uiMeshMesh> .release(fillMesh);
ObjectPool <uiMeshMesh> .release(strokeMesh);
return;
}
var layer = this._currentLayer;
if (convex)
{
layer.draws.Add(CanvasShader.convexFill(layer, p, fillMesh));
}
else
{
layer.draws.Add(CanvasShader.fill0(layer, fillMesh));
layer.draws.Add(CanvasShader.fill1(layer, p, fillMesh.boundsMesh));
}
if (strokeMesh != null)
{
layer.draws.Add(CanvasShader.strokeAlpha(layer, p, alpha, strokeMult, strokeMesh));
layer.draws.Add(CanvasShader.stroke1(layer, strokeMesh.duplicate()));
}
}
void _drawPathDrawMeshCallback2(uiPaint p, uiMeshMesh mesh, bool convex, float alpha, Texture tex,
uiRect textBlobBounds, TextBlobMesh textMesh, bool notEmoji)
{
if (!this._applyClip(mesh.bounds))
{
ObjectPool <uiMeshMesh> .release(mesh);
return;
}
var layer = this._currentLayer;
layer.draws.Add(CanvasShader.stroke0(layer, p, alpha, mesh));
layer.draws.Add(CanvasShader.stroke1(layer, mesh.duplicate()));
}
void _drawPath(Path path, Paint paint)
{
D.assert(path != null);
D.assert(paint != null);
if (paint.style == PaintingStyle.fill)
{
var state = this._currentLayer.currentState;
var cache = path.flatten(state.scale * this._devicePixelRatio);
bool convex;
var mesh = cache.getFillMesh(out convex).transform(state.matrix);
Action <Paint> drawMesh = p => {
if (!this._applyClip(mesh.bounds))
{
return;
}
var layer = this._currentLayer;
if (convex)
{
layer.draws.Add(CanvasShader.convexFill(layer, p, mesh));
}
else
{
layer.draws.Add(CanvasShader.fill0(layer, mesh));
layer.draws.Add(CanvasShader.fill1(layer, p, mesh.boundsMesh));
}
};
if (paint.maskFilter != null && paint.maskFilter.sigma != 0)
{
this._drawWithMaskFilter(mesh.bounds, drawMesh, paint, paint.maskFilter);
return;
}
drawMesh(paint);
}
else
{
var state = this._currentLayer.currentState;
float strokeWidth = (paint.strokeWidth * state.scale).clamp(0, 200.0f);
float alpha = 1.0f;
if (strokeWidth == 0)
{
strokeWidth = this._fringeWidth;
}
else if (strokeWidth < this._fringeWidth)
{
// If the stroke width is less than pixel size, use alpha to emulate coverage.
// Since coverage is area, scale by alpha*alpha.
alpha = (strokeWidth / this._fringeWidth).clamp(0.0f, 1.0f);
alpha *= alpha;
strokeWidth = this._fringeWidth;
}
var cache = path.flatten(state.scale * this._devicePixelRatio);
var mesh = cache.getStrokeMesh(
strokeWidth / state.scale * 0.5f,
paint.strokeCap,
paint.strokeJoin,
paint.strokeMiterLimit).transform(state.matrix);
Action <Paint> drawMesh = p => {
if (!this._applyClip(mesh.bounds))
{
return;
}
var layer = this._currentLayer;
layer.draws.Add(CanvasShader.stroke0(layer, p, alpha, mesh));
layer.draws.Add(CanvasShader.stroke1(layer, mesh));
};
if (paint.maskFilter != null && paint.maskFilter.sigma != 0)
{
this._drawWithMaskFilter(mesh.bounds, drawMesh, paint, paint.maskFilter);
return;
}
drawMesh(paint);
}
}