pathfill.cpp File Reference

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

Go to the source code of this file.

Classes
class	PathFillGM
class	PathInverseFillGM

Macros
#define	N   std::size(gProcs)

Typedefs
typedef PathDY(*	MakePathProc) ()

Functions
static PathDY	make_frame ()
static PathDY	make_triangle ()
static PathDY	make_rect ()
static PathDY	make_oval ()
static PathDY	make_sawtooth (int teeth)
static PathDY	make_sawtooth_3 ()
static PathDY	make_sawtooth_32 ()
static PathDY	make_house ()
static PathDY	make_star (int n)
static PathDY	make_star_5 ()
static PathDY	make_star_13 ()
static PathDY	make_line ()
static SkPath	make_info ()
static SkPath	make_accessibility ()
static SkPath	make_visualizer ()
	DEF_SIMPLE_GM (rotatedcubicpath, canvas, 200, 200)
	DEF_SIMPLE_GM (bug7792, canvas, 800, 800)
	DEF_SIMPLE_GM (path_stroke_clip_crbug1070835, canvas, 25, 50)
	DEF_SIMPLE_GM (path_arcto_skbug_9077, canvas, 200, 200)
	DEF_SIMPLE_GM (path_skbug_11859, canvas, 512, 512)
	DEF_SIMPLE_GM (path_skbug_11886, canvas, 256, 256)

Variables
constexpr MakePathProc	gProcs []

Macro Definition Documentation

N

#define N   std::size(gProcs)

Definition at line 299 of file pathfill.cpp.

Typedef Documentation

MakePathProc

typedef PathDY(* MakePathProc) ()

Definition at line 28 of file pathfill.cpp.

Function Documentation

DEF_SIMPLE_GM() [1/6]

DEF_SIMPLE_GM	(	bug7792	,
		canvas	,
		800	,
		800
	)

Definition at line 441 of file pathfill.cpp.

                                         {
    // from skbug.com/7792 bug description
    SkPaint p;
    SkPath path;
    path.moveTo(10, 10);
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    canvas->drawPath(path, p);
    // from skbug.com/7792#c3
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 50);
    path.moveTo(100, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 50);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c9
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(10, 10);
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c11
    canvas->translate(-200 * 2, 200);
    path.reset();
    path.moveTo(75, 150);
    path.lineTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.moveTo(75, 150);
    canvas->drawPath(path, p);
    // from skbug.com/7792#c14
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(250, 75);
    path.moveTo(250, 75);
    path.moveTo(250, 75);
    path.moveTo(100, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 75);
    path.close();
    path.lineTo(0, 0);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c15
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.moveTo(250, 75);
    canvas->drawPath(path, p);
    // from skbug.com/7792#c17
    canvas->translate(-200 * 2, 200);
    path.reset();
    path.moveTo(75, 10);
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 10);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c19
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(75, 75);
    path.lineTo(75, 75);
    path.lineTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.close();
    path.moveTo(10, 10);
    path.lineTo(30, 10);
    path.lineTo(10, 30);
    canvas->drawPath(path, p);
    // from skbug.com/7792#c23
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(75, 75);
    path.moveTo(75, 75);
    path.lineTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c29
    canvas->translate(-200 * 2, 200);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 250);
    path.moveTo(75, 75);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c31
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 10);
    path.moveTo(75, 75);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c36
    canvas->translate(200, 0);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(10, 150);
    path.moveTo(75, 75);
    path.lineTo(75, 75);
    canvas->drawPath(path, p);
    // from skbug.com/7792#c39
    canvas->translate(200, -200 * 3);
    path.reset();
    path.moveTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 100);
    canvas->drawPath(path, p);
    // from zero_length_paths_aa
    canvas->translate(0, 200);
    path.reset();
    path.moveTo(150, 100);
    path.lineTo(150, 100);
    path.lineTo(150, 150);
    path.lineTo(75, 150);
    path.lineTo(75, 100);
    path.lineTo(75, 75);
    path.lineTo(150, 75);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c41
    canvas->translate(0, 200);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(140, 150);
    path.lineTo(140, 75);
    path.moveTo(75, 75);
    path.close();
    canvas->drawPath(path, p);
    // from skbug.com/7792#c53
    canvas->translate(0, 200);
    path.reset();
    path.moveTo(75, 75);
    path.lineTo(150, 75);
    path.lineTo(150, 150);
    path.lineTo(140, 150);
    path.lineTo(140, 75);
    path.moveTo(75, 75);
    path.close();
    canvas->drawPath(path, p);
}

DEF_SIMPLE_GM() [2/6]

DEF_SIMPLE_GM	(	path_arcto_skbug_9077	,
		canvas	,
		200	,
		200
	)

Definition at line 662 of file pathfill.cpp.

                                                       {
    SkPaint p;
    p.setColor(SK_ColorRED);
    p.setAntiAlias(true);
    p.setStyle(SkPaint::kStroke_Style);
    p.setStrokeWidth(2);
 
    SkPathBuilder path;
    SkPoint pts[] = { {20, 20}, {100, 20}, {100, 60}, {130, 150}, {180, 160} };
    SkScalar radius = 60;
    path.moveTo(pts[0]);
    path.lineTo(pts[1]);
    path.lineTo(pts[2]);
    path.close();
    path.arcTo(pts[3], pts[4], radius);
    canvas->drawPath(path.detach(), p);
}

DEF_SIMPLE_GM() [3/6]

DEF_SIMPLE_GM	(	path_skbug_11859	,
		canvas	,
		512	,
		512
	)

Definition at line 680 of file pathfill.cpp.

                                                  {
    SkPaint paint;
    paint.setColor(SK_ColorRED);
    paint.setAntiAlias(true);
 
    SkPath path;
    path.moveTo(258, -2);
    path.lineTo(258, 258);
    path.lineTo(237, 258);
    path.lineTo(240, -2);
    path.lineTo(258, -2);
    path.moveTo(-2, -2);
    path.lineTo(240, -2);
    path.lineTo(238, 131);
    path.lineTo(-2, 131);
    path.lineTo(-2, -2);
 
    canvas->scale(2, 2);
    canvas->drawPath(path, paint);
}

DEF_SIMPLE_GM() [4/6]

DEF_SIMPLE_GM	(	path_skbug_11886	,
		canvas	,
		256	,
		256
	)

Definition at line 701 of file pathfill.cpp.

                                                  {
    SkPoint m = {0.f, 770.f};
    SkPath path;
    path.moveTo(m);
    path.cubicTo(m + SkPoint{0.f, 1.f}, m + SkPoint{20.f, -750.f}, m + SkPoint{83.f, -746.f});
    SkPaint paint;
    paint.setAntiAlias(true);
    canvas->drawPath(path, paint);
}

DEF_SIMPLE_GM() [5/6]

DEF_SIMPLE_GM	(	path_stroke_clip_crbug1070835	,
		canvas	,
		25	,
		50
	)

Definition at line 622 of file pathfill.cpp.

                                                             {
    SkCanvas* orig = canvas;
    auto surf = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(25, 25));
    canvas = surf->getCanvas();
 
    SkPaint p;
    p.setColor(SK_ColorRED);
    p.setAntiAlias(true);
    p.setStyle(SkPaint::kStroke_Style);
    p.setStrokeWidth(2);
 
    canvas->scale(4.16666651f/2, 4.16666651f/2);
 
    SkPath path;
 
    SkPoint pts[] = {
    {11, 12},
    {11, 18.0751324f},
    {6.07513189f, 23},
    {-4.80825292E-7f, 23},
    {-6.07513332f, 23},
    {-11, 18.0751324f},
    {-11, 11.999999f},
    {-10.999999f, 5.92486763f},
    {-6.07513189f, 1},
    {1.31173692E-7f, 1},
    {6.07513141f, 1},
    {10.9999981f, 5.92486572f},
    {11, 11.9999971f},
    };
    path.moveTo(pts[0]).cubicTo(pts[1], pts[2], pts[3])
                       .cubicTo(pts[4], pts[5], pts[6])
                       .cubicTo(pts[7], pts[8], pts[9])
                       .cubicTo(pts[10],pts[11],pts[12]);
 
    canvas->drawPath(path, p);
 
    surf->draw(orig, 0, 0);
}

DEF_SIMPLE_GM() [6/6]

DEF_SIMPLE_GM	(	rotatedcubicpath	,
		canvas	,
		200	,
		200
	)

Definition at line 414 of file pathfill.cpp.

                                                  {
    SkPaint p;
    p.setAntiAlias(true);
    p.setStyle(SkPaint::kFill_Style);
 
    canvas->translate(50, 50);
    SkPath path;
    path.moveTo(48,-23);
    path.cubicTo(48,-29.5, 6,-30, 6,-30);
    path.cubicTo(6,-30, 2,0, 2,0);
    path.cubicTo(2,0, 44,-21.5, 48,-23);
    path.close();
 
    p.setColor(SK_ColorBLUE);
    canvas->drawPath(path, p);
 
    // Rotated path, which is not antialiased on GPU
    p.setColor(SK_ColorRED);
    canvas->rotate(90);
    canvas->drawPath(path, p);
}

make_accessibility()

static SkPath make_accessibility ( )

static

Definition at line 203 of file pathfill.cpp.

                                   {
    SkPathBuilder path;
    path.moveTo(12, 2);
    path.cubicTo(13.10000038146973f, 2,
                 14, 2.900000095367432f,
                 14, 4);
    path.cubicTo(14, 5.099999904632568f,
                 13.10000038146973f, 6,
                 12, 6);
    path.cubicTo(10.89999961853027f, 6,
                 10, 5.099999904632568f,
                 10, 4);
    path.cubicTo(10, 2.900000095367432f,
                 10.89999961853027f, 2,
                 12, 2);
    path.close();
    path.moveTo(21, 9);
    path.lineTo(15, 9);
    path.lineTo(15, 22);
    path.lineTo(13, 22);
    path.lineTo(13, 16);
    path.lineTo(11, 16);
    path.lineTo(11, 22);
    path.lineTo(9, 22);
    path.lineTo(9, 9);
    path.lineTo(3, 9);
    path.lineTo(3, 7);
    path.lineTo(21, 7);
    path.lineTo(21, 9);
    path.close();
    return path.detach();
}

make_frame()

static PathDY make_frame ( )

static

Definition at line 30 of file pathfill.cpp.

                           {
    SkRect r = { SkIntToScalar(10), SkIntToScalar(10),
                 SkIntToScalar(630), SkIntToScalar(470) };
    SkPath path = SkPath::RRect(SkRRect::MakeRectXY(r, 15, 15));
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(SkIntToScalar(5));
    skpathutils::FillPathWithPaint(path, paint, &path);
    return {path, 15};
}

make_house()

static PathDY make_house ( )

static

Definition at line 99 of file pathfill.cpp.

                           {
    SkPathBuilder builder;
    builder.addPolygon({
            {21, 23},
            {21, 11.534f},
            {22.327f, 12.741f},
            {23.673f, 11.261f},
            {12, 0.648f},
            {8, 4.285f},
            {8, 2},
            {4, 2},
            {4, 7.921f},
            {0.327f, 11.26f},
            {1.673f, 12.74f},
            {3, 11.534f},
            {3, 23},
            {11, 23},
            {11, 18},
            {13, 18},
            {13, 23},
            {21, 23}}, true)
        .polylineTo({
            {9, 16},
            {9, 21},
            {5, 21},
            {5, 9.715f},
            {12, 3.351f},
            {19, 9.715f},
            {19, 21},
            {15, 21},
            {15, 16},
            {9, 16}})
        .close()
        .offset(20, 0);
    return {builder.detach(), 30};
}

make_info()

static SkPath make_info ( )

static

Definition at line 172 of file pathfill.cpp.

                          {
    SkPathBuilder path;
    path.moveTo(24, 4);
    path.cubicTo(12.94999980926514f, 4,
                 4, 12.94999980926514f,
                 4, 24);
    path.cubicTo(4, 35.04999923706055f,
                 12.94999980926514f, 44,
                 24, 44);
    path.cubicTo(35.04999923706055f, 44,
                 44, 35.04999923706055f,
                 44, 24);
    path.cubicTo(44, 12.95000076293945f,
                 35.04999923706055f, 4,
                 24, 4);
    path.close();
    path.moveTo(26, 34);
    path.lineTo(22, 34);
    path.lineTo(22, 22);
    path.lineTo(26, 22);
    path.lineTo(26, 34);
    path.close();
    path.moveTo(26, 18);
    path.lineTo(22, 18);
    path.lineTo(22, 14);
    path.lineTo(26, 14);
    path.lineTo(26, 18);
    path.close();
    return path.detach();
}

make_line()

static PathDY make_line ( )

static

Definition at line 158 of file pathfill.cpp.

                          {
    return {
        SkPathBuilder().moveTo(30, 30)
                       .lineTo(120, 40)
                       .close()
                       .moveTo(150, 30)
                       .lineTo(150, 30)
                       .lineTo(300, 40)
                       .close()
                       .detach(),
        40
    };
}

make_oval()

static PathDY make_oval ( )

static

Definition at line 65 of file pathfill.cpp.

                          {
    SkRect r = { SkIntToScalar(10), SkIntToScalar(10),
                 SkIntToScalar(30), SkIntToScalar(30) };
    return {
        SkPathBuilder().addOval(r).offset(10, 0).detach(),
        30
    };
}

make_rect()

static PathDY make_rect ( )

static

Definition at line 56 of file pathfill.cpp.

                          {
    SkRect r = { SkIntToScalar(10), SkIntToScalar(10),
                 SkIntToScalar(30), SkIntToScalar(30) };
    return {
        SkPathBuilder().addRect(r).offset(10, 0).detach(),
        30
    };
}

make_sawtooth()

static PathDY make_sawtooth ( int  teeth )

static

Definition at line 74 of file pathfill.cpp.

                                       {
    SkScalar x = SkIntToScalar(20);
    SkScalar y = SkIntToScalar(20);
    const SkScalar x0 = x;
    const SkScalar dx = SkIntToScalar(5);
    const SkScalar dy = SkIntToScalar(10);
 
    SkPathBuilder builder;
    builder.moveTo(x, y);
    for (int i = 0; i < teeth; i++) {
        x += dx;
        builder.lineTo(x, y - dy);
        x += dx;
        builder.lineTo(x, y + dy);
    }
    builder.lineTo(x, y + (2 * dy));
    builder.lineTo(x0, y + (2 * dy));
    builder.close();
 
    return {builder.detach(), 30};
}

make_sawtooth_3()

static PathDY make_sawtooth_3 ( )

static

Definition at line 96 of file pathfill.cpp.

{ return make_sawtooth(3); }

make_sawtooth_32()

static PathDY make_sawtooth_32 ( )

static

Definition at line 97 of file pathfill.cpp.

{ return make_sawtooth(32); }

make_star()

static PathDY make_star ( int  n )

static

Definition at line 136 of file pathfill.cpp.

                               {
    const SkScalar c = SkIntToScalar(45);
    const SkScalar r = SkIntToScalar(20);
 
    SkScalar rad = -SK_ScalarPI / 2;
    const SkScalar drad = (n >> 1) * SK_ScalarPI * 2 / n;
 
    SkPathBuilder builder;
    builder.moveTo(c, c - r);
    for (int i = 1; i < n; i++) {
        rad += drad;
        builder.lineTo(c + SkScalarCos(rad) * r, c + SkScalarSin(rad) * r);
    }
    builder.close();
 
    return {builder.detach(), r * 2 * 6 / 5};
}

make_star_13()

static PathDY make_star_13 ( )

static

Definition at line 155 of file pathfill.cpp.

{ return make_star(13); }

make_star_5()

static PathDY make_star_5 ( )

static

Definition at line 154 of file pathfill.cpp.

{ return make_star(5); }

make_triangle()

static PathDY make_triangle ( )

static

Definition at line 41 of file pathfill.cpp.

                              {
    constexpr int gCoord[] = {
        10, 20, 15, 5, 30, 30
    };
    return {
        SkPathBuilder().moveTo(SkIntToScalar(gCoord[0]), SkIntToScalar(gCoord[1]))
                       .lineTo(SkIntToScalar(gCoord[2]), SkIntToScalar(gCoord[3]))
                       .lineTo(SkIntToScalar(gCoord[4]), SkIntToScalar(gCoord[5]))
                       .close()
                       .offset(10, 0)
                       .detach(),
        30
    };
}

make_visualizer()

static SkPath make_visualizer ( )

static

Definition at line 237 of file pathfill.cpp.

                                {
    SkPathBuilder path;
    path.moveTo(1.9520f, 2.0000f);
    path.conicTo(1.5573f, 1.9992f, 1.2782f, 2.2782f, 0.9235f);
    path.conicTo(0.9992f, 2.5573f, 1.0000f, 2.9520f, 0.9235f);
    path.lineTo(1.0000f, 5.4300f);
    path.lineTo(17.0000f, 5.4300f);
    path.lineTo(17.0000f, 2.9520f);
    path.conicTo(17.0008f, 2.5573f, 16.7218f, 2.2782f, 0.9235f);
    path.conicTo(16.4427f, 1.9992f, 16.0480f, 2.0000f, 0.9235f);
    path.lineTo(1.9520f, 2.0000f);
    path.close();
    path.moveTo(2.7140f, 3.1430f);
    path.conicTo(3.0547f, 3.1287f, 3.2292f, 3.4216f, 0.8590f);
    path.conicTo(3.4038f, 3.7145f, 3.2292f, 4.0074f, 0.8590f);
    path.conicTo(3.0547f, 4.3003f, 2.7140f, 4.2860f, 0.8590f);
    path.conicTo(2.1659f, 4.2631f, 2.1659f, 3.7145f, 0.7217f);
    path.conicTo(2.1659f, 3.1659f, 2.7140f, 3.1430f, 0.7217f);
    path.lineTo(2.7140f, 3.1430f);
    path.close();
    path.moveTo(5.0000f, 3.1430f);
    path.conicTo(5.3407f, 3.1287f, 5.5152f, 3.4216f, 0.8590f);
    path.conicTo(5.6898f, 3.7145f, 5.5152f, 4.0074f, 0.8590f);
    path.conicTo(5.3407f, 4.3003f, 5.0000f, 4.2860f, 0.8590f);
    path.conicTo(4.4519f, 4.2631f, 4.4519f, 3.7145f, 0.7217f);
    path.conicTo(4.4519f, 3.1659f, 5.0000f, 3.1430f, 0.7217f);
    path.lineTo(5.0000f, 3.1430f);
    path.close();
    path.moveTo(7.2860f, 3.1430f);
    path.conicTo(7.6267f, 3.1287f, 7.8012f, 3.4216f, 0.8590f);
    path.conicTo(7.9758f, 3.7145f, 7.8012f, 4.0074f, 0.8590f);
    path.conicTo(7.6267f, 4.3003f, 7.2860f, 4.2860f, 0.8590f);
    path.conicTo(6.7379f, 4.2631f, 6.7379f, 3.7145f, 0.7217f);
    path.conicTo(6.7379f, 3.1659f, 7.2860f, 3.1430f, 0.7217f);
    path.close();
    path.moveTo(1.0000f, 6.1900f);
    path.lineTo(1.0000f, 14.3810f);
    path.conicTo(0.9992f, 14.7757f, 1.2782f, 15.0548f, 0.9235f);
    path.conicTo(1.5573f, 15.3338f, 1.9520f, 15.3330f, 0.9235f);
    path.lineTo(16.0480f, 15.3330f);
    path.conicTo(16.4427f, 15.3338f, 16.7218f, 15.0548f, 0.9235f);
    path.conicTo(17.0008f, 14.7757f, 17.0000f, 14.3810f, 0.9235f);
    path.lineTo(17.0000f, 6.1910f);
    path.lineTo(1.0000f, 6.1910f);
    path.lineTo(1.0000f, 6.1900f);
    path.close();
    return path.detach();
}

Variable Documentation

gProcs

constexpr MakePathProc gProcs[]

constexpr

Initial value:

= {
    make_frame,
    make_triangle,
    make_rect,
    make_oval,
    make_sawtooth_32,
    make_star_5,
    make_star_13,
    make_line,
    make_house,
    make_sawtooth_3,
}

Definition at line 286 of file pathfill.cpp.