void _drawImageRect(Image image, uiRect?src, uiRect dst, uiPaint paint)
{
D.assert(image != null && image.valid);
if (image == null || !image.valid)
{
return;
}
if (src == null)
{
src = uiRectHelper.one;
}
else
{
src = uiRectHelper.scale(src.Value, 1f / image.width, 1f / image.height);
}
var layer = this._currentLayer;
var state = layer.currentState;
var mesh = ImageMeshGenerator.imageMesh(state.matrix, src.Value, dst);
if (!this._applyClip(mesh.bounds))
{
ObjectPool <uiMeshMesh> .release(mesh);
return;
}
layer.draws.Add(CanvasShader.tex(layer, paint, mesh, image));
}
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 _drawImageNine(Image image, uiRect?src, uiRect center, uiRect dst, uiPaint paint)
{
D.assert(image != null);
var scaleX = 1f / image.width;
var scaleY = 1f / image.height;
if (src == null)
{
src = uiRectHelper.one;
}
else
{
src = uiRectHelper.scale(src.Value, scaleX, scaleY);
}
center = uiRectHelper.scale(center, scaleX, scaleY);
var layer = this._currentLayer;
var state = layer.currentState;
var mesh = ImageMeshGenerator.imageNineMesh(state.matrix, src.Value, center, image.width, image.height,
dst);
if (!this._applyClip(mesh.bounds))
{
ObjectPool <uiMeshMesh> .release(mesh);
return;
}
layer.draws.Add(CanvasShader.tex(layer, paint, mesh, image));
}
void _drawWithMaskFilter(uiRect meshBounds, uiPaint paint, uiMaskFilter maskFilter,
uiMeshMesh fillMesh, uiMeshMesh strokeMesh, bool convex, float alpha, float strokeMult, Texture tex,
uiRect texBound, TextBlobMesh textMesh, bool notEmoji,
_drawPathDrawMeshCallbackDelegate drawCallback)
{
var layer = this._currentLayer;
var clipBounds = layer.layerBounds;
uiRect?stackBounds;
bool iior;
layer.clipStack.getBounds(out stackBounds, out iior);
if (stackBounds != null)
{
clipBounds = uiRectHelper.intersect(clipBounds, stackBounds.Value);
}
if (clipBounds.isEmpty)
{
this._drawPathDrawMeshQuit(fillMesh, strokeMesh, textMesh);
return;
}
var state = layer.currentState;
float sigma = state.scale * maskFilter.sigma;
if (sigma <= 0)
{
this._drawPathDrawMeshQuit(fillMesh, strokeMesh, textMesh);
return;
}
float sigma3 = 3 * sigma;
var maskBounds = uiRectHelper.inflate(meshBounds, sigma3);
maskBounds = uiRectHelper.intersect(maskBounds, uiRectHelper.inflate(clipBounds, sigma3));
if (maskBounds.isEmpty)
{
this._drawPathDrawMeshQuit(fillMesh, strokeMesh, textMesh);
return;
}
var maskLayer = this._createMaskLayer(layer, maskBounds, drawCallback, paint, convex, alpha, strokeMult,
tex, texBound,
textMesh, fillMesh, strokeMesh, notEmoji);
var blurLayer = this._createBlurLayer(maskLayer, sigma, sigma, layer);
var blurMesh = ImageMeshGenerator.imageMesh(null, uiRectHelper.one, maskBounds);
if (!this._applyClip(blurMesh.bounds))
{
ObjectPool <uiMeshMesh> .release(blurMesh);
return;
}
layer.draws.Add(CanvasShader.texRT(layer, paint, blurMesh, blurLayer));
}
void _drawTextDrawMeshCallback(uiPaint p, uiMeshMesh fillMesh, uiMeshMesh strokeMesh, bool convex, float alpha,
float strokeMult, Texture tex,
uiRect textBlobBounds, TextBlobMesh textMesh, bool notEmoji)
{
if (!this._applyClip(textBlobBounds))
{
ObjectPool <TextBlobMesh> .release(textMesh);
return;
}
var layer = this._currentLayer;
if (notEmoji)
{
layer.draws.Add(CanvasShader.texAlpha(layer, p, textMesh, tex));
}
else
{
uiPaint paintWithWhite = new uiPaint(p);
paintWithWhite.color = uiColor.white;
if (EmojiUtils.image == null)
{
ObjectPool <TextBlobMesh> .release(textMesh);
return;
}
var raw_mesh = textMesh.resolveMesh();
var meshmesh = raw_mesh.duplicate();
ObjectPool <TextBlobMesh> .release(textMesh);
layer.draws.Add(CanvasShader.tex(layer, paintWithWhite, meshmesh, EmojiUtils.image));
}
}
public static uiPaint shapeOnly(uiPaint paint)
{
return(new uiPaint(
style: paint.style,
strokeWidth: paint.strokeWidth,
strokeCap: paint.strokeCap,
strokeJoin: paint.strokeJoin,
strokeMiterLimit: paint.strokeMiterLimit
));
}
void _drawImage(Image image, uiOffset offset, uiPaint paint)
{
D.assert(image != null);
this._drawImageRect(image,
null,
uiRectHelper.fromLTWH(
offset.dx, offset.dy,
image.width / this._devicePixelRatio,
image.height / this._devicePixelRatio),
paint);
}
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()));
}
RenderLayer _createMaskLayer(RenderLayer parentLayer, uiRect maskBounds,
_drawPathDrawMeshCallbackDelegate drawCallback,
uiPaint paint, bool convex, float alpha, float strokeMult, Texture tex, uiRect texBound,
TextBlobMesh textMesh,
uiMeshMesh fillMesh, uiMeshMesh strokeMesh, bool notEmoji)
{
var textureWidth = Mathf.CeilToInt(maskBounds.width * this._devicePixelRatio);
if (textureWidth < 1)
{
textureWidth = 1;
}
var textureHeight = Mathf.CeilToInt(maskBounds.height * this._devicePixelRatio);
if (textureHeight < 1)
{
textureHeight = 1;
}
var maskLayer = RenderLayer.create(
rtID: Shader.PropertyToID(this._getNewRenderTextureKey()),
width: textureWidth,
height: textureHeight,
layerBounds: maskBounds,
filterMode: FilterMode.Bilinear,
noMSAA: true
);
parentLayer.addLayer(maskLayer);
this._layers.Add(maskLayer);
this._currentLayer = maskLayer;
var parentState = parentLayer.states[parentLayer.states.Count - 1];
var maskState = maskLayer.states[maskLayer.states.Count - 1];
maskState.matrix = parentState.matrix;
drawCallback.Invoke(uiPaint.shapeOnly(paint), fillMesh, strokeMesh, convex, alpha, strokeMult, tex,
texBound, textMesh, notEmoji);
var removed = this._layers.removeLast();
D.assert(removed == maskLayer);
this._currentLayer = this._layers[this._layers.Count - 1];
return(maskLayer);
}
public uiPaint(uiPaint paint)
{
this.color = paint.color;
this.blendMode = paint.blendMode;
this.style = paint.style;
this.strokeWidth = paint.strokeWidth;
this.strokeCap = paint.strokeCap;
this.strokeJoin = paint.strokeJoin;
this.strokeMiterLimit = paint.strokeMiterLimit;
this.filterMode = paint.filterMode;
this.colorFilter = paint.colorFilter;
this.maskFilter = paint.maskFilter;
this.backdrop = paint.backdrop;
this.shader = paint.shader;
this.invertColors = paint.invertColors;
}
public static PictureFlusher.CmdDraw texRT(PictureFlusher.RenderLayer layer, uiPaint paint,
uiMeshMesh mesh, PictureFlusher.RenderLayer renderLayer)
{
var mat = _texMat.getMaterial(paint.blendMode, layer.ignoreClip);
_getShaderPassAndProps(layer, paint, mesh.matrix, 1.0f, 0.0f, out var pass, out var props);
props.SetInt(_texModeId, 1); // pre alpha
return(PictureFlusher.CmdDraw.create(
mesh: mesh,
pass: pass,
material: mat,
properties: props,
layerId: renderLayer.rtID
));
}
void _drawImage(Image image, uiOffset offset, uiPaint paint)
{
D.assert(image != null && image.valid);
if (image == null || !image.valid)
{
return;
}
this._drawImageRect(image,
null,
uiRectHelper.fromLTWH(
offset.dx, offset.dy,
image.width / this._devicePixelRatio,
image.height / this._devicePixelRatio),
paint);
}
public static PictureFlusher.CmdDraw fill1(PictureFlusher.RenderLayer layer, uiPaint paint,
uiMeshMesh mesh)
{
var mat = _fill1Mat.getMaterial(paint.blendMode);
_getShaderPassAndProps(layer, paint, mesh.matrix, 1.0f, 0.0f, out var pass, out var props);
var ret = PictureFlusher.CmdDraw.create(
mesh: mesh.boundsMesh,
pass: pass,
material: mat,
properties: props
);
ObjectPool <uiMeshMesh> .release(mesh);
return(ret);
}
public static PictureFlusher.CmdDraw tex(PictureFlusher.RenderLayer layer, uiPaint paint,
uiMeshMesh mesh, Image image)
{
var mat = _texMat.getMaterial(paint.blendMode, layer.ignoreClip);
_getShaderPassAndProps(layer, paint, mesh.matrix, 1.0f, 0.0f, out var pass, out var props);
image.texture.filterMode = paint.filterMode;
props.SetTexture(_texId, image.texture);
props.SetInt(_texModeId, image.texture is RenderTexture || image.isDynamic ? 1 : 0); // pre alpha if RT else post alpha
return(PictureFlusher.CmdDraw.create(
mesh: mesh,
pass: pass,
material: mat,
properties: props,
image: image // keep a reference to avoid GC.
));
}
void _drawPathDrawMeshCallback(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;
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));
}
}
void _drawTextBlob(TextBlob?textBlob, uiOffset offset, uiPaint paint)
{
D.assert(textBlob != null);
var state = this._currentLayer.currentState;
var scale = state.scale * this._devicePixelRatio;
var matrix = new uiMatrix3(state.matrix.Value);
matrix.preTranslate(offset.dx, offset.dy);
var mesh = TextBlobMesh.create(textBlob.Value, scale, matrix);
var textBlobBounds = matrix.mapRect(uiRectHelper.fromRect(textBlob.Value.boundsInText));
// request font texture so text mesh could be generated correctly
var style = textBlob.Value.style;
var font = FontManager.instance.getOrCreate(style.fontFamily, style.fontWeight, style.fontStyle).font;
var fontSizeToLoad = Mathf.CeilToInt(style.UnityFontSize * scale);
var subText = textBlob.Value.text.Substring(textBlob.Value.textOffset, textBlob.Value.textSize);
Texture tex = null;
bool notEmoji = !char.IsHighSurrogate(subText[0]) && !EmojiUtils.isSingleCharEmoji(subText[0]);
if (notEmoji)
{
font.RequestCharactersInTextureSafe(subText, fontSizeToLoad, style.UnityFontStyle);
tex = font.material.mainTexture;
}
if (paint.maskFilter != null && paint.maskFilter.Value.sigma != 0)
{
this._drawWithMaskFilter(textBlobBounds, paint, paint.maskFilter.Value, null, null, false, 0, 0, tex,
textBlobBounds, mesh, notEmoji, this.___drawTextDrawMeshCallback);
return;
}
this._drawTextDrawMeshCallback(paint, null, null, false, 0, 0, tex, textBlobBounds, mesh, notEmoji);
}
public static PictureFlusher.CmdDraw texAlpha(PictureFlusher.RenderLayer layer, uiPaint paint,
uiMeshMesh mesh, TextBlobMesh textMesh, Texture tex)
{
var mat = _texMat.getMaterial(paint.blendMode, layer.ignoreClip);
var meshMatrix = mesh != null ? mesh.matrix : textMesh.matrix;
_getShaderPassAndProps(layer, paint, meshMatrix, 1.0f, 0.0f, out var pass, out var props);
tex.filterMode = paint.filterMode;
props.SetTexture(_texId, tex);
props.SetInt(_texModeId, 2); // alpha only
return(PictureFlusher.CmdDraw.create(
mesh: mesh,
textMesh: textMesh,
pass: pass,
material: mat,
properties: props
));
}
public static PictureFlusher.CmdDraw texAlpha(PictureFlusher.RenderLayer layer, uiPaint paint,
TextBlobMesh textMesh, Texture tex)
{
return(texAlpha(layer, paint, null, textMesh, tex));
}
public static PictureFlusher.CmdDraw strokeAlpha(PictureFlusher.RenderLayer layer, uiPaint paint, float alpha, float strokeMult, uiMeshMesh mesh)
{
var mat = _strokeAlphaMat.getMaterial(paint.blendMode, layer.ignoreClip);
_getShaderPassAndProps(layer, paint, mesh.matrix, alpha, strokeMult, out var pass, out var props);
return(PictureFlusher.CmdDraw.create(
mesh: mesh,
pass: pass,
material: mat,
properties: props
));
}
public static PictureFlusher.CmdDraw convexFill(PictureFlusher.RenderLayer layer, uiPaint paint,
uiMeshMesh mesh)
{
var mat = _convexFillMat.getMaterial(paint.blendMode, layer.ignoreClip);
_getShaderPassAndProps(layer, paint, mesh.matrix, 1.0f, 0.0f, out var pass, out var props);
return(PictureFlusher.CmdDraw.create(
mesh: mesh,
pass: pass,
material: mat,
properties: props
));
}
static void _getShaderPassAndProps(
PictureFlusher.RenderLayer layer, uiPaint paint, uiMatrix3?meshMatrix, float alpha, float strokeMult,
out int pass, out MaterialPropertyBlockWrapper props)
{
Vector4 viewport = layer.viewport;
props = ObjectPool <MaterialPropertyBlockWrapper> .alloc();
props.SetVector(_viewportId, viewport);
props.SetFloat(_alphaId, alpha);
props.SetFloat(_strokeMultId, strokeMult);
switch (paint.shader)
{
case null:
pass = 0;
props.SetVector(_colorId, _colorToVector4(paint.color));
return;
case _LinearGradient linear:
pass = 1;
props.SetMatrix(_shaderMatId, linear.getGradientMat(
_getShaderMatBase(layer.currentState, meshMatrix)).toMatrix4x4());
props.SetTexture(_shaderTexId, linear.gradientTex.texture);
props.SetVector(_leftColorId, _colorToVector4(linear.leftColor));
props.SetVector(_rightColorId, _colorToVector4(linear.rightColor));
props.SetInt(_tileModeId, (int)linear.tileMode);
return;
case _RadialGradient radial:
pass = 2;
props.SetMatrix(_shaderMatId, radial.getGradientMat(
_getShaderMatBase(layer.currentState, meshMatrix)).toMatrix4x4());
props.SetTexture(_shaderTexId, radial.gradientTex.texture);
props.SetVector(_leftColorId, _colorToVector4(radial.leftColor));
props.SetVector(_rightColorId, _colorToVector4(radial.rightColor));
props.SetInt(_tileModeId, (int)radial.tileMode);
return;
case _SweepGradient sweep:
pass = 3;
props.SetMatrix(_shaderMatId, sweep.getGradientMat(
_getShaderMatBase(layer.currentState, meshMatrix)).toMatrix4x4());
props.SetTexture(_shaderTexId, sweep.gradientTex.texture);
props.SetVector(_leftColorId, _colorToVector4(sweep.leftColor));
props.SetVector(_rightColorId, _colorToVector4(sweep.rightColor));
props.SetInt(_tileModeId, (int)sweep.tileMode);
props.SetFloat(_biasId, sweep.bias);
props.SetFloat(_scaleId, sweep.scale);
return;
case ImageShader image:
pass = 4;
props.SetMatrix(_shaderMatId, image.getShaderMat(
_getShaderMatBase(layer.currentState, meshMatrix)).toMatrix4x4());
props.SetTexture(_shaderTexId, image.image.texture);
props.SetInt(_tileModeId, (int)image.tileMode);
return;
default:
throw new Exception("Unknown paint.shader: " + paint.shader);
}
}
void _drawRRectShadow(uiPath path, uiPaint paint)
{
D.assert(path.isNaiveRRect, () => "Cannot draw fast Shadow for non-NaiveRRect shapes");
D.assert(paint.style == PaintingStyle.fill, () => "Cannot draw fast Shadow for stroke lines");
var layer = this._currentLayer;
var state = layer.currentState;
var cache = path.flatten(state.scale * this._devicePixelRatio);
bool convex;
cache.computeFillMesh(this._fringeWidth, out convex);
var fillMesh = cache.fillMesh;
var meshBounds = fillMesh.transform(state.matrix);
var clipBounds = layer.layerBounds;
uiRect?stackBounds;
bool iior;
layer.clipStack.getBounds(out stackBounds, out iior);
if (stackBounds != null)
{
clipBounds = uiRectHelper.intersect(clipBounds, stackBounds.Value);
}
if (clipBounds.isEmpty)
{
ObjectPool <uiMeshMesh> .release(meshBounds);
return;
}
var maskBounds = meshBounds.bounds;
maskBounds = uiRectHelper.intersect(maskBounds, clipBounds);
if (maskBounds.isEmpty)
{
ObjectPool <uiMeshMesh> .release(meshBounds);
return;
}
var blurMesh = ImageMeshGenerator.imageMesh(null, uiRectHelper.one, maskBounds);
if (!this._applyClip(blurMesh.bounds))
{
ObjectPool <uiMeshMesh> .release(meshBounds);
ObjectPool <uiMeshMesh> .release(blurMesh);
return;
}
var bound = path.getBounds();
var sigma = state.scale * paint.maskFilter.Value.sigma / 3f;
var vertices = ObjectPool <uiList <Vector3> > .alloc();
vertices.SetCapacity(4);
vertices.Add(new Vector2(0, 0));
vertices.Add(new Vector2(1, 0));
vertices.Add(new Vector2(0, 1));
vertices.Add(new Vector2(1, 1));
var _triangles = ObjectPool <uiList <int> > .alloc();
_triangles.SetCapacity(6);
_triangles.Add(0);
_triangles.Add(1);
_triangles.Add(2);
_triangles.Add(2);
_triangles.Add(1);
_triangles.Add(3);
ObjectPool <uiMeshMesh> .release(meshBounds);
ObjectPool <uiMeshMesh> .release(blurMesh);
var mesh = uiMeshMesh.create(state.matrix, vertices, _triangles);
var shadowColor = paint.color.withAlpha(128);
layer.draws.Add(CanvasShader.fastShadow(layer, mesh, sigma, path.isRect, path.isCircle, path.rRectCorner, new Vector4(bound.left, bound.top, bound.right, bound.bottom), shadowColor));
}
void _drawPath(uiPath path, uiPaint paint)
{
D.assert(path != null);
//draw fast shadow
if (paint.maskFilter != null && paint.maskFilter.Value.style == BlurStyle.fast_shadow)
{
this._drawRRectShadow(path, paint);
return;
}
if (paint.style == PaintingStyle.fill)
{
var state = this._currentLayer.currentState;
var cache = path.flatten(state.scale * this._devicePixelRatio);
bool convex;
cache.computeFillMesh(this._fringeWidth, out convex);
var fillMesh = cache.fillMesh;
var strokeMesh = cache.strokeMesh;
var fmesh = fillMesh.transform(state.matrix);
var smesh = strokeMesh?.transform(state.matrix);
float strokeMult = 1.0f;
if (paint.maskFilter != null && paint.maskFilter.Value.sigma != 0)
{
this._drawWithMaskFilter(fmesh.bounds, paint, paint.maskFilter.Value, fmesh, smesh, convex, 0,
strokeMult, null,
uiRectHelper.zero, null, false, this.___drawPathDrawMeshCallback);
return;
}
this._drawPathDrawMeshCallback(paint, fmesh, smesh, convex, 1.0f, strokeMult, null, uiRectHelper.zero,
null, false);
}
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;
}
strokeWidth = strokeWidth / state.scale * 0.5f;
float strokeMult = (this._fringeWidth * 0.5f + strokeWidth * 0.5f) / this._fringeWidth;
var cache = path.flatten(state.scale * this._devicePixelRatio);
cache.computeStrokeMesh(
strokeWidth,
this._fringeWidth,
paint.strokeCap,
paint.strokeJoin,
paint.strokeMiterLimit);
var strokeMesh = cache.strokeMesh;
var mesh = strokeMesh.transform(state.matrix);
if (paint.maskFilter != null && paint.maskFilter.Value.sigma != 0)
{
this._drawWithMaskFilter(mesh.bounds, paint, paint.maskFilter.Value, null, mesh, false, alpha,
strokeMult, null,
uiRectHelper.zero, null, false, this.___drawPathDrawMeshCallback2);
return;
}
this._drawPathDrawMeshCallback2(paint, null, mesh, false, alpha, strokeMult, null, uiRectHelper.zero,
null, false);
}
}
void _saveLayer(uiRect bounds, uiPaint paint)
{
D.assert(bounds.width > 0);
D.assert(bounds.height > 0);
var parentLayer = this._currentLayer;
var state = parentLayer.currentState;
var textureWidth = Mathf.CeilToInt(
bounds.width * state.scale * this._devicePixelRatio);
if (textureWidth < 1)
{
textureWidth = 1;
}
var textureHeight = Mathf.CeilToInt(
bounds.height * state.scale * this._devicePixelRatio);
if (textureHeight < 1)
{
textureHeight = 1;
}
var layer = RenderLayer.create(
rtID: Shader.PropertyToID(this._getNewRenderTextureKey()),
width: textureWidth,
height: textureHeight,
layerBounds: bounds,
layerPaint: paint
);
parentLayer.addLayer(layer);
this._layers.Add(layer);
this._currentLayer = layer;
if (paint.backdrop != null)
{
if (paint.backdrop is _uiBlurImageFilter)
{
var filter = (_uiBlurImageFilter)paint.backdrop;
if (!(filter.sigmaX == 0 && filter.sigmaY == 0))
{
_cachedPoints[0] = bounds.topLeft;
_cachedPoints[1] = bounds.bottomLeft;
_cachedPoints[2] = bounds.bottomRight;
_cachedPoints[3] = bounds.topRight;
state.matrix.Value.mapPoints(ref _cachedPoints);
var parentBounds = parentLayer.layerBounds;
for (int i = 0; i < 4; i++)
{
_cachedPoints[i] = new uiOffset(
(_cachedPoints[i].dx - parentBounds.left) / parentBounds.width,
(_cachedPoints[i].dy - parentBounds.top) / parentBounds.height
);
}
var mesh = ImageMeshGenerator.imageMesh(
null,
_cachedPoints[0],
_cachedPoints[1],
_cachedPoints[2],
_cachedPoints[3],
bounds);
var renderDraw = CanvasShader.texRT(layer, layer.layerPaint.Value, mesh, parentLayer);
layer.draws.Add(renderDraw);
var blurLayer = this._createBlurLayer(layer, filter.sigmaX, filter.sigmaY, layer);
var blurMesh = ImageMeshGenerator.imageMesh(null, uiRectHelper.one, bounds);
layer.draws.Add(CanvasShader.texRT(layer, paint, blurMesh, blurLayer));
}
}
else if (paint.backdrop is _uiMatrixImageFilter)
{
var filter = (_uiMatrixImageFilter)paint.backdrop;
if (!filter.transform.isIdentity())
{
layer.filterMode = filter.filterMode;
_cachedPoints[0] = bounds.topLeft;
_cachedPoints[1] = bounds.bottomLeft;
_cachedPoints[2] = bounds.bottomRight;
_cachedPoints[3] = bounds.topRight;
state.matrix.Value.mapPoints(ref _cachedPoints);
var parentBounds = parentLayer.layerBounds;
for (int i = 0; i < 4; i++)
{
_cachedPoints[i] = new uiOffset(
(_cachedPoints[i].dx - parentBounds.left) / parentBounds.width,
(_cachedPoints[i].dy - parentBounds.top) / parentBounds.height
);
}
var matrix = uiMatrix3.makeTrans(-bounds.left, -bounds.top);
matrix.postConcat(filter.transform);
matrix.postTranslate(bounds.left, bounds.top);
var mesh = ImageMeshGenerator.imageMesh(
matrix,
_cachedPoints[0],
_cachedPoints[1],
_cachedPoints[2],
_cachedPoints[3],
bounds);
var renderDraw = CanvasShader.texRT(layer, layer.layerPaint.Value, mesh, parentLayer);
layer.draws.Add(renderDraw);
}
}
}
}