void
DrawTargetSkia::Mask(const Pattern &aSource,
const Pattern &aMask,
const DrawOptions &aOptions)
{
MarkChanged();
AutoPaintSetup paint(mCanvas.get(), aOptions, aSource);
SkPaint maskPaint;
SetPaintPattern(maskPaint, aMask);
SkLayerRasterizer *raster = new SkLayerRasterizer();
raster->addLayer(maskPaint);
SkSafeUnref(paint.mPaint.setRasterizer(raster));
// Skia only uses the mask rasterizer when we are drawing a path/rect.
// Take our destination bounds and convert them into user space to use
// as the path to draw.
SkPath path;
path.addRect(SkRect::MakeWH(SkScalar(mSize.width), SkScalar(mSize.height)));
Matrix temp = mTransform;
temp.Invert();
SkMatrix mat;
GfxMatrixToSkiaMatrix(temp, mat);
path.transform(mat);
mCanvas->drawPath(path, paint.mPaint);
}
void
DrawTargetSkia::SetTransform(const Matrix& aTransform)
{
SkMatrix mat;
GfxMatrixToSkiaMatrix(aTransform, mat);
mCanvas->setMatrix(mat);
mTransform = aTransform;
}
PathBuilderSkia::PathBuilderSkia(const Matrix& aTransform, const SkPath& aPath, FillRule aFillRule)
: mPath(aPath)
{
SkMatrix matrix;
GfxMatrixToSkiaMatrix(aTransform, matrix);
mPath.transform(matrix);
SetFillRule(aFillRule);
}
static void
SetPaintPattern(SkPaint& aPaint, const Pattern& aPattern, TempBitmap& aTmpBitmap,
Float aAlpha = 1.0)
{
switch (aPattern.GetType()) {
case PatternType::COLOR: {
Color color = static_cast<const ColorPattern&>(aPattern).mColor;
aPaint.setColor(ColorToSkColor(color, aAlpha));
break;
}
case PatternType::LINEAR_GRADIENT: {
const LinearGradientPattern& pat = static_cast<const LinearGradientPattern&>(aPattern);
GradientStopsSkia *stops = static_cast<GradientStopsSkia*>(pat.mStops.get());
SkShader::TileMode mode = ExtendModeToTileMode(stops->mExtendMode);
if (stops->mCount >= 2) {
SkPoint points[2];
points[0] = SkPoint::Make(SkFloatToScalar(pat.mBegin.x), SkFloatToScalar(pat.mBegin.y));
points[1] = SkPoint::Make(SkFloatToScalar(pat.mEnd.x), SkFloatToScalar(pat.mEnd.y));
SkShader* shader = SkGradientShader::CreateLinear(points,
&stops->mColors.front(),
&stops->mPositions.front(),
stops->mCount,
mode);
if (shader) {
SkMatrix mat;
GfxMatrixToSkiaMatrix(pat.mMatrix, mat);
shader->setLocalMatrix(mat);
SkSafeUnref(aPaint.setShader(shader));
}
} else {
aPaint.setColor(SkColorSetARGB(0, 0, 0, 0));
}
break;
}
case PatternType::RADIAL_GRADIENT: {
const RadialGradientPattern& pat = static_cast<const RadialGradientPattern&>(aPattern);
GradientStopsSkia *stops = static_cast<GradientStopsSkia*>(pat.mStops.get());
SkShader::TileMode mode = ExtendModeToTileMode(stops->mExtendMode);
if (stops->mCount >= 2) {
SkPoint points[2];
points[0] = SkPoint::Make(SkFloatToScalar(pat.mCenter1.x), SkFloatToScalar(pat.mCenter1.y));
points[1] = SkPoint::Make(SkFloatToScalar(pat.mCenter2.x), SkFloatToScalar(pat.mCenter2.y));
SkShader* shader = SkGradientShader::CreateTwoPointConical(points[0],
SkFloatToScalar(pat.mRadius1),
points[1],
SkFloatToScalar(pat.mRadius2),
&stops->mColors.front(),
&stops->mPositions.front(),
stops->mCount,
mode);
if (shader) {
SkMatrix mat;
GfxMatrixToSkiaMatrix(pat.mMatrix, mat);
shader->setLocalMatrix(mat);
SkSafeUnref(aPaint.setShader(shader));
}
} else {
aPaint.setColor(SkColorSetARGB(0, 0, 0, 0));
}
break;
}
case PatternType::SURFACE: {
const SurfacePattern& pat = static_cast<const SurfacePattern&>(aPattern);
aTmpBitmap = GetBitmapForSurface(pat.mSurface);
const SkBitmap& bitmap = aTmpBitmap.mBitmap;
SkShader::TileMode mode = ExtendModeToTileMode(pat.mExtendMode);
SkShader* shader = SkShader::CreateBitmapShader(bitmap, mode, mode);
SkMatrix mat;
GfxMatrixToSkiaMatrix(pat.mMatrix, mat);
shader->setLocalMatrix(mat);
SkSafeUnref(aPaint.setShader(shader));
if (pat.mFilter == Filter::POINT) {
aPaint.setFilterLevel(SkPaint::kNone_FilterLevel);
}
break;
}
}
}
