thinrects.cpp File Reference

#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkImage.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypes.h"

Go to the source code of this file.

Classes
class	skiagm::ThinRectsGM

Namespaces
namespace	skiagm

Functions
	DEF_SIMPLE_GM_CAN_FAIL (clipped_thinrect, canvas, errorMsg, 256, 256)

Function Documentation

DEF_SIMPLE_GM_CAN_FAIL()

DEF_SIMPLE_GM_CAN_FAIL	(	clipped_thinrect	,
		canvas	,
		errorMsg	,
		256	,
		256
	)

Definition at line 153 of file thinrects.cpp.

                                                                     {
    auto zoomed = canvas->makeSurface(canvas->imageInfo().makeWH(10, 10));
    if (!zoomed) {
        errorMsg->printf("makeSurface not supported");
        return skiagm::DrawResult::kSkip;
    }
    auto zoomedCanvas = zoomed->getCanvas();
 
    SkPaint p;
    p.setColor(SK_ColorRED);
    p.setAntiAlias(true);
    p.setStyle(SkPaint::kFill_Style);
    zoomedCanvas->save();
    zoomedCanvas->clipRect(SkRect::MakeXYWH(0, 5, 256, 10), true /*doAntialias*/);
    zoomedCanvas->drawRect(SkRect::MakeXYWH(0, 0, 100, 5.5), p);
    zoomedCanvas->restore();
 
    // Zoom-in. Should see one line of red representing zoomed in 1/2px coverage and *not*
    // two lines of varying coverage from hairline rendering.
    auto img = zoomed->makeImageSnapshot();
    canvas->drawImageRect(img, SkRect::MakeXYWH(0, 10, 200, 200), SkSamplingOptions());
    return skiagm::DrawResult::kOk;
}