DM::ViaUpright Class Reference

#include <DMSrcSink.h>

Inheritance diagram for DM::ViaUpright:

Public Member Functions
	ViaUpright (SkMatrix, Sink *)
Result	draw (const Src &, SkBitmap *, SkWStream *, SkString *) const override
Public Member Functions inherited from DM::Via
	Via (Sink *sink)
const char *	fileExtension () const override
bool	serial () const override
SinkFlags	flags () const override
void	setColorSpace (sk_sp< SkColorSpace > colorSpace) override
Public Member Functions inherited from DM::Sink
virtual	~Sink ()
virtual SkColorInfo	colorInfo () const

Additional Inherited Members
Protected Attributes inherited from DM::Via
std::unique_ptr< Sink >	fSink

Detailed Description

Definition at line 655 of file DMSrcSink.h.

Constructor & Destructor Documentation

ViaUpright()

DM::ViaUpright::ViaUpright	(	SkMatrix	matrix,
		Sink *	sink
	)

Definition at line 2490 of file DMSrcSink.cpp.

: Via(sink), fMatrix(matrix) {}

Member Function Documentation

draw()

Result DM::ViaUpright::draw ( const Src &  src, SkBitmap *  bitmap, SkWStream *  stream, SkString *  log  ) const

overridevirtual

Implements DM::Sink.

Definition at line 2492 of file DMSrcSink.cpp.

                                                                                                {
    Result result = fSink->draw(src, bitmap, stream, log);
    if (!result.isOk()) {
        return result;
    }
 
    SkMatrix inverse;
    if (!fMatrix.rectStaysRect() || !fMatrix.invert(&inverse)) {
        return Result::Fatal("Cannot upright --matrix.");
    }
    SkMatrix upright = SkMatrix::I();
    upright.setScaleX(SkScalarSignAsScalar(inverse.getScaleX()));
    upright.setScaleY(SkScalarSignAsScalar(inverse.getScaleY()));
    upright.setSkewX(SkScalarSignAsScalar(inverse.getSkewX()));
    upright.setSkewY(SkScalarSignAsScalar(inverse.getSkewY()));
 
    SkBitmap uprighted;
    SkISize size = auto_compute_translate(&upright, bitmap->width(), bitmap->height());
    uprighted.allocPixels(bitmap->info().makeDimensions(size));
 
    SkCanvas canvas(uprighted);
    canvas.concat(upright);
    SkPaint paint;
    paint.setBlendMode(SkBlendMode::kSrc);
    canvas.drawImage(bitmap->asImage(), 0, 0, SkSamplingOptions(), &paint);
 
    *bitmap = uprighted;
    return Result::Ok();
}

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The documentation for this class was generated from the following files:

• third_party/skia/dm/DMSrcSink.h
• third_party/skia/dm/DMSrcSink.cpp