DashPathEffectTest.cpp File Reference

#include "include/core/SkCanvas.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkPathEffect.h"
#include "include/core/SkPathUtils.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkStrokeRec.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypes.h"
#include "include/effects/SkDashPathEffect.h"
#include "src/core/SkPathEffectBase.h"
#include "tests/Test.h"
#include <array>

Go to the source code of this file.

Functions
	DEF_TEST (DashPathEffectTest_crbug_348821, r)
	DEF_TEST (DashPathEffectTest_asPoints, r)
	DEF_TEST (DashPath_bug4871, r)
	DEF_TEST (DashPathEffectTest_asPoints_limit, r)
	DEF_TEST (DashCrazy_crbug_875494, r)

Function Documentation

DEF_TEST() [1/5]

DEF_TEST	(	DashCrazy_crbug_875494	,
		r
	)

Definition at line 133 of file DashPathEffectTest.cpp.

                                    {
    SkScalar vals[] = { 98, 94, 2888458849.f, 227, 0, 197 };
    const int N = std::size(vals);
 
    SkRect cull = SkRect::MakeXYWH(43,236,57,149);
    SkPath path;
    path.addRect(cull);
 
    SkPath path2;
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setPathEffect(SkDashPathEffect::Make(vals, N, 222));
    skpathutils::FillPathWithPaint(path, paint, &path2, &cull);
}

DEF_TEST() [2/5]

DEF_TEST	(	DashPath_bug4871	,
		r
	)

Definition at line 100 of file DashPathEffectTest.cpp.

                              {
    SkPath path;
    path.moveTo(30, 24);
    path.cubicTo(30.002f, 24, 30, 24, 30, 24);
    path.close();
 
    SkScalar intervals[2] = { 1, 1 };
    sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, 2, 0));
 
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setPathEffect(dash);
 
    SkPath fill;
    skpathutils::FillPathWithPaint(path, paint, &fill);
}

DEF_TEST() [3/5]

DEF_TEST	(	DashPathEffectTest_asPoints	,
		r
	)

Definition at line 41 of file DashPathEffectTest.cpp.

                                         {
 
    const SkScalar intervals[] = { 1.0f, 1.0f };
    const int count = 2;
    sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, count, 0.0f));
 
    SkRect cull = SkRect::MakeWH(1.0f, 1.0f);
 
    const struct {
        SkPoint fPts[2];
        bool    fExpectedResult;
    } testCases[] = {
        { { { -5.0f,  0.5f }, { -4.0f,  0.5f } }, false },   // off to the left
        { { {  4.0f,  0.5f }, {  5.0f,  0.5f } }, false },   // off to the right
        { { {  0.5f,  4.0f }, {  0.5f,  5.0f } }, false },   // off the bottom
        { { {  0.5f, -5.0f }, {  0.5f, -4.0f } }, false },   // off the top
        { { {  0.5f,  0.2f }, {  0.5f,  0.8f } }, true  },   // entirely inside vertical
        { { {  0.2f,  0.5f }, {  0.8f,  0.5f } }, true  },   // entirely inside horizontal
        { { {  0.5f, -5.0f }, {  0.5f,  5.0f } }, true  },   // straddles both sides vertically
        { { { -5.0f,  0.5f }, {  5.0f,  0.5f } }, true  },   // straddles both sides horizontally
        { { {  0.5f, -5.0f }, {  0.5f,  0.5f } }, true  },   // straddles top
        { { {  0.5f,  5.0f }, {  0.5f,  0.5f } }, true  },   // straddles bottom
        { { { -5.0f,  0.5f }, {  0.5f,  0.5f } }, true  },   // straddles left
        { { {  5.0f,  0.5f }, {  0.5f,  0.5f } }, true  },   // straddles right
        { { {  0.5f,  0.5f }, {  0.5f,  0.5f } }, false },   // zero length
    };
 
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(1.0f);
    SkStrokeRec rec(paint);
 
    static const int kNumMats = 3;
    SkMatrix mats[kNumMats];
    mats[0].reset();
    mats[1].setRotate(90, 0.5f, 0.5f);
    mats[2].setTranslate(10.0f, 10.0f);
 
    for (int i = 0; i < kNumMats; ++i) {
        for (int j = 0; j < (int)std::size(testCases); ++j) {
            for (int k = 0; k < 2; ++k) {  // exercise alternating endpoints
                SkPathEffectBase::PointData results;
                SkPath src;
 
                src.moveTo(testCases[j].fPts[k]);
                src.lineTo(testCases[j].fPts[(k+1)%2]);
 
                bool actualResult = as_PEB(dash)->asPoints(&results, src, rec, mats[i], &cull);
                if (i < 2) {
                    REPORTER_ASSERT(r, actualResult == testCases[j].fExpectedResult);
                } else {
                    // On the third pass all the lines should be outside the translated cull rect
                    REPORTER_ASSERT(r, !actualResult);
                }
            }
        }
    }
}

DEF_TEST() [4/5]

DEF_TEST	(	DashPathEffectTest_asPoints_limit	,
		r
	)

Definition at line 118 of file DashPathEffectTest.cpp.

                                               {
    sk_sp<SkSurface> surface(SkSurfaces::Raster(SkImageInfo::MakeN32Premul(256, 256)));
    SkCanvas* canvas = surface->getCanvas();
 
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
    // force the bounds to outset by a large amount
    p.setStrokeWidth(5.0e10f);
    const SkScalar intervals[] = { 1, 1 };
    p.setPathEffect(SkDashPathEffect::Make(intervals, std::size(intervals), 0));
    canvas->drawLine(1, 1, 1, 5.0e10f, p);
}

DEF_TEST() [5/5]

DEF_TEST	(	DashPathEffectTest_crbug_348821	,
		r
	)

Definition at line 31 of file DashPathEffectTest.cpp.

                                             {
    SkScalar intervals[] = { 1.76934361e+36f, 2.80259693e-45f };  // Values from bug.
    const int count = 2;
    SkScalar phase = SK_ScalarInfinity;  // Used to force a nonsense effect.
    sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, count, phase));
 
    REPORTER_ASSERT(r, dash == nullptr);
}