StrokerTest.cpp File Reference

#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkPathUtils.h"
#include "include/core/SkPoint.h"
#include "include/core/SkScalar.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkDebug.h"
#include "src/base/SkFloatBits.h"
#include "src/base/SkRandom.h"
#include "src/core/SkPointPriv.h"
#include "src/core/SkStrokerPriv.h"
#include "src/pathops/SkPathOpsCubic.h"
#include "src/pathops/SkPathOpsPoint.h"
#include "src/pathops/SkPathOpsQuad.h"
#include "tests/PathOpsCubicIntersectionTestData.h"
#include "tests/PathOpsQuadIntersectionTestData.h"
#include "tests/PathOpsTestCommon.h"
#include "tests/Test.h"
#include "tools/flags/CommandLineFlags.h"
#include <array>
#include <cfloat>
#include <cstddef>
#include <cstdint>

Go to the source code of this file.

Macros
#define	MS_TEST_DURATION   10

Functions
static	DEFINE_bool (timeout, true, "run until alloted time expires")
static void	pathTest (const SkPath &path)
static void	cubicTest (const SkPoint c[4])
static void	quadTest (const SkPoint c[3])
static void	cubicSetTest (const CubicPts *dCubic, size_t count)
static void	cubicPairSetTest (const CubicPts dCubic[][2], size_t count)
static void	quadSetTest (const QuadPts *dQuad, size_t count)
static void	quadPairSetTest (const QuadPts dQuad[][2], size_t count)
	DEF_TEST (QuadStrokerSet, reporter)
	DEF_TEST (CubicStrokerSet, reporter)
static SkScalar	unbounded (SkRandom &r)
static SkScalar	unboundedPos (SkRandom &r)
	DEF_TEST (QuadStrokerUnbounded, reporter)
	DEF_TEST (CubicStrokerUnbounded, reporter)
	DEF_TEST (QuadStrokerConstrained, reporter)
	DEF_TEST (CubicStrokerConstrained, reporter)
	DEF_TEST (QuadStrokerRange, reporter)
	DEF_TEST (CubicStrokerRange, reporter)
	DEF_TEST (QuadStrokerOneOff, reporter)
	DEF_TEST (CubicStrokerOneOff, reporter)

Variables
const SkScalar	widths []
size_t	widths_count = std::size(widths)

Macro Definition Documentation

MS_TEST_DURATION

#define MS_TEST_DURATION   10

Definition at line 37 of file StrokerTest.cpp.

Function Documentation

cubicPairSetTest()

static void cubicPairSetTest ( const CubicPts  dCubic[][2], size_t  count  )

static

Definition at line 84 of file StrokerTest.cpp.

                                                                       {
    skiatest::Timer timer;
    for (size_t index = 0; index < count; ++index) {
        for (int pair = 0; pair < 2; ++pair) {
            const CubicPts& dPts = dCubic[index][pair];
            SkDCubic d;
            d.debugSet(dPts.fPts);
            SkPoint c[4] = { {(float) d[0].fX, (float) d[0].fY}, {(float) d[1].fX, (float) d[1].fY},
                             {(float) d[2].fX, (float) d[2].fY}, {(float) d[3].fX, (float) d[3].fY} };
            cubicTest(c);
            if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
                return;
            }
        }
    }
}

cubicSetTest()

static void cubicSetTest ( const CubicPts *  dCubic, size_t  count  )

static

Definition at line 69 of file StrokerTest.cpp.

                                                               {
    skiatest::Timer timer;
    for (size_t index = 0; index < count; ++index) {
        const CubicPts& dPts = dCubic[index];
        SkDCubic d;
        d.debugSet(dPts.fPts);
        SkPoint c[4] = { {(float) d[0].fX, (float) d[0].fY}, {(float) d[1].fX, (float) d[1].fY},
                         {(float) d[2].fX, (float) d[2].fY}, {(float) d[3].fX, (float) d[3].fY} };
        cubicTest(c);
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
}

cubicTest()

static void cubicTest ( const SkPoint  c[4] )

static

Definition at line 55 of file StrokerTest.cpp.

                                          {
    SkPath path;
    path.moveTo(c[0].fX, c[0].fY);
    path.cubicTo(c[1].fX, c[1].fY, c[2].fX, c[2].fY, c[3].fX, c[3].fY);
    pathTest(path);
}

DEF_TEST() [1/10]

DEF_TEST	(	CubicStrokerConstrained	,
		reporter
	)

Definition at line 291 of file StrokerTest.cpp.

                                            {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int bestTan = 0;
    int bestCubic = 0;
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        SkPoint cubic[4];
        cubic[0].fX = r.nextRangeF(0, 500);
        cubic[0].fY = r.nextRangeF(0, 500);
        const SkScalar halfSquared = 0.5f * 0.5f;
        do {
            cubic[1].fX = r.nextRangeF(0, 500);
            cubic[1].fY = r.nextRangeF(0, 500);
        } while (SkPointPriv::DistanceToSqd(cubic[0], cubic[1]) < halfSquared);
        do {
            cubic[2].fX = r.nextRangeF(0, 500);
            cubic[2].fY = r.nextRangeF(0, 500);
        } while (  SkPointPriv::DistanceToSqd(cubic[0], cubic[2]) < halfSquared
                || SkPointPriv::DistanceToSqd(cubic[1], cubic[2]) < halfSquared);
        do {
            cubic[3].fX = r.nextRangeF(0, 500);
            cubic[3].fY = r.nextRangeF(0, 500);
        } while (  SkPointPriv::DistanceToSqd(cubic[0], cubic[3]) < halfSquared
                || SkPointPriv::DistanceToSqd(cubic[1], cubic[3]) < halfSquared
                || SkPointPriv::DistanceToSqd(cubic[2], cubic[3]) < halfSquared);
        path.moveTo(cubic[0].fX, cubic[0].fY);
        path.cubicTo(cubic[1].fX, cubic[1].fY, cubic[2].fX, cubic[2].fY, cubic[3].fX, cubic[3].fY);
        p.setStrokeWidth(r.nextRangeF(0, 500));
        skpathutils::FillPathWithPaint(path, p, &fill);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (bestTan < gMaxRecursion[0] || bestCubic < gMaxRecursion[1]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s tan=%d cubic=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[0],
                        gMaxRecursion[1], p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            bestTan = std::max(bestTan, gMaxRecursion[0]);
            bestCubic = std::max(bestCubic, gMaxRecursion[1]);
        }
#endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("\n%s max tan=%d cubic=%d\n", __FUNCTION__, bestTan, bestCubic);
    }
#endif
}

DEF_TEST() [2/10]

DEF_TEST	(	CubicStrokerOneOff	,
		reporter
	)

Definition at line 461 of file StrokerTest.cpp.

                                       {
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
    p.setStrokeWidth(SkDoubleToScalar(42.835968));
 
    SkPath path, fill;
path.moveTo(SkBits2Float(0x433f5370), SkBits2Float(0x43d1f4b3));
path.cubicTo(SkBits2Float(0x4331cb76), SkBits2Float(0x43ea3340), SkBits2Float(0x4388f498), SkBits2Float(0x42f7f08d), SkBits2Float(0x43f1cd32), SkBits2Float(0x42802ec1));
    skpathutils::FillPathWithPaint(path, p, &fill);
    if (reporter->verbose()) {
        SkDebugf("\n%s path\n", __FUNCTION__);
        path.dump();
        SkDebugf("fill:\n");
        fill.dump();
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("max tan=%d cubic=%d\n", gMaxRecursion[0], gMaxRecursion[1]);
    }
#endif
}

DEF_TEST() [3/10]

DEF_TEST	(	CubicStrokerRange	,
		reporter
	)

Definition at line 395 of file StrokerTest.cpp.

                                      {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int best[2] = { 0 };
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        path.moveTo(r.nextRangeF(0, 500), r.nextRangeF(0, 500));
        path.cubicTo(r.nextRangeF(0, 500), r.nextRangeF(0, 500), r.nextRangeF(0, 500),
                r.nextRangeF(0, 500), r.nextRangeF(0, 500), r.nextRangeF(0, 500));
        p.setStrokeWidth(r.nextRangeF(0, 100));
        skpathutils::FillPathWithPaint(path, p, &fill);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (best[0] < gMaxRecursion[0] || best[1] < gMaxRecursion[1]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s tan=%d cubic=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[0],
                        gMaxRecursion[1], p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            best[0] = std::max(best[0], gMaxRecursion[0]);
            best[1] = std::max(best[1], gMaxRecursion[1]);
        }
#endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("\n%s max tan=%d cubic=%d\n", __FUNCTION__, best[0], best[1]);
    }
#endif
}

DEF_TEST() [4/10]

DEF_TEST	(	CubicStrokerSet	,
		reporter
	)

Definition at line 140 of file StrokerTest.cpp.

                                    {
    cubicSetTest(pointDegenerates, pointDegenerates_count);
    cubicSetTest(notPointDegenerates, notPointDegenerates_count);
    cubicSetTest(lines, lines_count);
    cubicSetTest(notLines, notLines_count);
    cubicSetTest(modEpsilonLines, modEpsilonLines_count);
    cubicSetTest(lessEpsilonLines, lessEpsilonLines_count);
    cubicSetTest(negEpsilonLines, negEpsilonLines_count);
    cubicPairSetTest(tests, tests_count);
}

DEF_TEST() [5/10]

DEF_TEST	(	CubicStrokerUnbounded	,
		reporter
	)

Definition at line 199 of file StrokerTest.cpp.

                                          {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int bestTan = 0;
    int bestCubic = 0;
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        path.moveTo(unbounded(r), unbounded(r));
        path.cubicTo(unbounded(r), unbounded(r), unbounded(r), unbounded(r),
                unbounded(r), unbounded(r));
        p.setStrokeWidth(unboundedPos(r));
        skpathutils::FillPathWithPaint(path, p, &fill);
    #if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (bestTan < gMaxRecursion[0] || bestCubic < gMaxRecursion[1]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s tan=%d cubic=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[0],
                        gMaxRecursion[1], p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            bestTan = std::max(bestTan, gMaxRecursion[0]);
            bestCubic = std::max(bestCubic, gMaxRecursion[1]);
        }
    #endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("\n%s max tan=%d cubic=%d\n", __FUNCTION__, bestTan, bestCubic);
    }
#endif
}

DEF_TEST() [6/10]

DEF_TEST	(	QuadStrokerConstrained	,
		reporter
	)

Definition at line 240 of file StrokerTest.cpp.

                                           {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int best = 0;
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        SkPoint quad[3];
        quad[0].fX = r.nextRangeF(0, 500);
        quad[0].fY = r.nextRangeF(0, 500);
        const SkScalar halfSquared = 0.5f * 0.5f;
        do {
            quad[1].fX = r.nextRangeF(0, 500);
            quad[1].fY = r.nextRangeF(0, 500);
        } while (SkPointPriv::DistanceToSqd(quad[0], quad[1]) < halfSquared);
        do {
            quad[2].fX = r.nextRangeF(0, 500);
            quad[2].fY = r.nextRangeF(0, 500);
        } while (SkPointPriv::DistanceToSqd(quad[0], quad[2]) < halfSquared
                || SkPointPriv::DistanceToSqd(quad[1], quad[2]) < halfSquared);
        path.moveTo(quad[0].fX, quad[0].fY);
        path.quadTo(quad[1].fX, quad[1].fY, quad[2].fX, quad[2].fY);
        p.setStrokeWidth(r.nextRangeF(0, 500));
        skpathutils::FillPathWithPaint(path, p, &fill);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (best < gMaxRecursion[2]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s quad=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[2],
                        p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            best = gMaxRecursion[2];
        }
#endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("\n%s max quad=%d\n", __FUNCTION__, best);
    }
#endif
}

DEF_TEST() [7/10]

DEF_TEST	(	QuadStrokerOneOff	,
		reporter
	)

Definition at line 436 of file StrokerTest.cpp.

                                      {
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
    p.setStrokeWidth(SkDoubleToScalar(164.683548));
 
    SkPath path, fill;
path.moveTo(SkBits2Float(0x43c99223), SkBits2Float(0x42b7417e));
path.quadTo(SkBits2Float(0x4285d839), SkBits2Float(0x43ed6645), SkBits2Float(0x43c941c8), SkBits2Float(0x42b3ace3));
    skpathutils::FillPathWithPaint(path, p, &fill);
    if (reporter->verbose()) {
        SkDebugf("\n%s path\n", __FUNCTION__);
        path.dump();
        SkDebugf("fill:\n");
        fill.dump();
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("max quad=%d\n", gMaxRecursion[2]);
    }
#endif
}

DEF_TEST() [8/10]

DEF_TEST	(	QuadStrokerRange	,
		reporter
	)

Definition at line 350 of file StrokerTest.cpp.

                                     {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int best = 0;
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        SkPoint quad[3];
        quad[0].fX = r.nextRangeF(0, 500);
        quad[0].fY = r.nextRangeF(0, 500);
        quad[1].fX = r.nextRangeF(0, 500);
        quad[1].fY = r.nextRangeF(0, 500);
        quad[2].fX = r.nextRangeF(0, 500);
        quad[2].fY = r.nextRangeF(0, 500);
        path.moveTo(quad[0].fX, quad[0].fY);
        path.quadTo(quad[1].fX, quad[1].fY, quad[2].fX, quad[2].fY);
        p.setStrokeWidth(r.nextRangeF(0, 500));
        skpathutils::FillPathWithPaint(path, p, &fill);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (best < gMaxRecursion[2]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s quad=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[2],
                        p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            best = gMaxRecursion[2];
        }
#endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
        SkDebugf("\n%s max quad=%d\n", __FUNCTION__, best);
    }
#endif
}

DEF_TEST() [9/10]

DEF_TEST	(	QuadStrokerSet	,
		reporter
	)

Definition at line 133 of file StrokerTest.cpp.

                                   {
    quadSetTest(quadraticLines, quadraticLines_count);
    quadSetTest(quadraticPoints, quadraticPoints_count);
    quadSetTest(quadraticModEpsilonLines, quadraticModEpsilonLines_count);
    quadPairSetTest(quadraticTests, quadraticTests_count);
}

DEF_TEST() [10/10]

DEF_TEST	(	QuadStrokerUnbounded	,
		reporter
	)

Definition at line 161 of file StrokerTest.cpp.

                                         {
    SkRandom r;
    SkPaint p;
    p.setStyle(SkPaint::kStroke_Style);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    int best = 0;
    sk_bzero(gMaxRecursion, sizeof(gMaxRecursion[0]) * 3);
#endif
    skiatest::Timer timer;
    for (int i = 0; i < 1000000; ++i) {
        SkPath path, fill;
        path.moveTo(unbounded(r), unbounded(r));
        path.quadTo(unbounded(r), unbounded(r), unbounded(r), unbounded(r));
        p.setStrokeWidth(unboundedPos(r));
        skpathutils::FillPathWithPaint(path, p, &fill);
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
        if (best < gMaxRecursion[2]) {
            if (reporter->verbose()) {
                SkDebugf("\n%s quad=%d width=%1.9g\n", __FUNCTION__, gMaxRecursion[2],
                        p.getStrokeWidth());
                path.dumpHex();
                SkDebugf("fill:\n");
                fill.dumpHex();
            }
            best = gMaxRecursion[2];
        }
#endif
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
#if defined(SK_DEBUG) && QUAD_STROKE_APPROX_EXTENDED_DEBUGGING
    if (reporter->verbose()) {
       SkDebugf("\n%s max quad=%d\n", __FUNCTION__, best);
    }
#endif
}

DEFINE_bool()

static DEFINE_bool ( timeout  , true  , "run until alloted time expires"    )

static

pathTest()

static void pathTest ( const SkPath &  path )

static

Definition at line 45 of file StrokerTest.cpp.

                                         {
    SkPaint p;
    SkPath fill;
    p.setStyle(SkPaint::kStroke_Style);
    for (size_t index = 0; index < widths_count; ++index) {
        p.setStrokeWidth(widths[index]);
        skpathutils::FillPathWithPaint(path, p, &fill);
    }
}

quadPairSetTest()

static void quadPairSetTest ( const QuadPts  dQuad[][2], size_t  count  )

static

Definition at line 116 of file StrokerTest.cpp.

                                                                    {
    skiatest::Timer timer;
    for (size_t index = 0; index < count; ++index) {
        for (int pair = 0; pair < 2; ++pair) {
            const QuadPts& dPts = dQuad[index][pair];
            SkDQuad d;
            d.debugSet(dPts.fPts);
            SkPoint c[3] = { {(float) d[0].fX, (float) d[0].fY}, {(float) d[1].fX, (float) d[1].fY},
                             {(float) d[2].fX, (float) d[2].fY}  };
            quadTest(c);
            if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
                return;
            }
        }
    }
}

quadSetTest()

static void quadSetTest ( const QuadPts *  dQuad, size_t  count  )

static

Definition at line 101 of file StrokerTest.cpp.

                                                            {
    skiatest::Timer timer;
    for (size_t index = 0; index < count; ++index) {
        const QuadPts& dPts = dQuad[index];
        SkDQuad d;
        d.debugSet(dPts.fPts);
        SkPoint c[3] = { {(float) d[0].fX, (float) d[0].fY}, {(float) d[1].fX, (float) d[1].fY},
                         {(float) d[2].fX, (float) d[2].fY}  };
        quadTest(c);
        if (FLAGS_timeout && timer.elapsedMs() > MS_TEST_DURATION) {
            return;
        }
    }
}

quadTest()

static void quadTest ( const SkPoint  c[3] )

static

Definition at line 62 of file StrokerTest.cpp.

                                         {
    SkPath path;
    path.moveTo(c[0].fX, c[0].fY);
    path.quadTo(c[1].fX, c[1].fY, c[2].fX, c[2].fY);
    pathTest(path);
}

unbounded()

static SkScalar unbounded ( SkRandom &  r )

static

Definition at line 151 of file StrokerTest.cpp.

                                       {
    uint32_t val = r.nextU();
    return SkBits2Float(val);
}

unboundedPos()

static SkScalar unboundedPos ( SkRandom &  r )

static

Definition at line 156 of file StrokerTest.cpp.

                                          {
    uint32_t val = r.nextU() & 0x7fffffff;
    return SkBits2Float(val);
}

Variable Documentation

widths

const SkScalar widths[]

Initial value:

= {-FLT_MAX, -1, -0.1f, -FLT_EPSILON, 0, FLT_EPSILON,
        0.0000001f, 0.000001f, 0.00001f, 0.0001f, 0.001f, 0.01f,
        0.1f, 0.2f, 0.3f, 0.4f, 0.5f, 1, 1.1f, 2, 10, 10e2f, 10e3f, 10e4f, 10e5f, 10e6f, 10e7f,
        10e8f, 10e9f, 10e10f, 10e20f,  FLT_MAX }

Definition at line 39 of file StrokerTest.cpp.

widths_count

size_t widths_count = std::size(widths)

Definition at line 43 of file StrokerTest.cpp.