GradientBench.cpp File Reference

#include "bench/Benchmark.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColorPriv.h"
#include "include/core/SkPaint.h"
#include "include/core/SkShader.h"
#include "include/core/SkString.h"
#include "include/effects/SkGradientShader.h"
#include "tools/ToolUtils.h"

Go to the source code of this file.

Classes
struct	GradData
class	GradientBench
class	Gradient2Bench

Typedefs
typedef sk_sp< SkShader >(*	GradMaker) (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)

Enumerations
enum	GradType {   kLinear_GradType , kRadial_GradType , kSweep_GradType , kConical_GradType ,   kConicalZero_GradType , kConicalOut_GradType , kConicalOutZero_GradType }
enum	GeomType { kRect_GeomType , kOval_GeomType }

Functions
static sk_sp< SkShader >	MakeLinear (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static sk_sp< SkShader >	MakeRadial (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
static sk_sp< SkShader >	MakeSweep (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static sk_sp< SkShader >	MakeConical (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static sk_sp< SkShader >	MakeConicalZeroRad (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static sk_sp< SkShader >	MakeConicalOutside (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static sk_sp< SkShader >	MakeConicalOutsideZeroRad (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)
	Ignores scale.
static const char *	geomtypename (GeomType gt)

Variables
static const SkColor	gColors []
static const SkColor	gShallowColors [] = { 0xFF555555, 0xFF444444 }
static const SkScalar	gPos [] = {0.25f, 0.75f}
static const GradData	gGradData []
struct {
GradMaker   fMaker
const char *   fName
}	gGrads []

Typedef Documentation

GradMaker

typedef sk_sp< SkShader >(* GradMaker) (const SkPoint pts[2], const GradData &data, SkTileMode tm, float scale)

Definition at line 129 of file GradientBench.cpp.

Enumeration Type Documentation

GeomType

enum GeomType

Enumerator
kRect_GeomType
kOval_GeomType

Definition at line 155 of file GradientBench.cpp.

              {
    kRect_GeomType,
    kOval_GeomType
};

GradType

enum GradType

Enumerator
kLinear_GradType
kRadial_GradType
kSweep_GradType
kConical_GradType
kConicalZero_GradType
kConicalOut_GradType
kConicalOutZero_GradType

Definition at line 145 of file GradientBench.cpp.

              { // these must match the order in gGrads
    kLinear_GradType,
    kRadial_GradType,
    kSweep_GradType,
    kConical_GradType,
    kConicalZero_GradType,
    kConicalOut_GradType,
    kConicalOutZero_GradType
};

Function Documentation

geomtypename()

static const char * geomtypename ( GeomType  gt )

static

Definition at line 160 of file GradientBench.cpp.

                                             {
    switch (gt) {
        case kRect_GeomType:
            return "rectangle";
        case kOval_GeomType:
            return "oval";
        default:
            SkDEBUGFAIL("unknown geometry type");
            return "error";
    }
}

MakeConical()

static sk_sp< SkShader > MakeConical ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 76 of file GradientBench.cpp.

                                                               {
    SkPoint center0, center1;
    center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
    center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5),
                SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4));
    return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7,
                                                 center0, (pts[1].fX - pts[0].fX) / 2,
                                                 data.fColors, data.fPos, data.fCount, tm);
}

MakeConicalOutside()

static sk_sp< SkShader > MakeConicalOutside ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 102 of file GradientBench.cpp.

                                                                      {
    SkPoint center0, center1;
    SkScalar radius0 = (pts[1].fX - pts[0].fX) / 10;
    SkScalar radius1 = (pts[1].fX - pts[0].fX) / 3;
    center0.set(pts[0].fX + radius0, pts[0].fY + radius0);
    center1.set(pts[1].fX - radius1, pts[1].fY - radius1);
    return SkGradientShader::MakeTwoPointConical(center0, radius0,
                                                 center1, radius1,
                                                 data.fColors, data.fPos,
                                                 data.fCount, tm);
}

MakeConicalOutsideZeroRad()

static sk_sp< SkShader > MakeConicalOutsideZeroRad ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 116 of file GradientBench.cpp.

                                                                             {
    SkPoint center0, center1;
    SkScalar radius0 = (pts[1].fX - pts[0].fX) / 10;
    SkScalar radius1 = (pts[1].fX - pts[0].fX) / 3;
    center0.set(pts[0].fX + radius0, pts[0].fY + radius0);
    center1.set(pts[1].fX - radius1, pts[1].fY - radius1);
    return SkGradientShader::MakeTwoPointConical(center0, 0.0,
                                                 center1, radius1,
                                                 data.fColors, data.fPos,
                                                 data.fCount, tm);
}

MakeConicalZeroRad()

static sk_sp< SkShader > MakeConicalZeroRad ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 89 of file GradientBench.cpp.

                                                                      {
    SkPoint center0, center1;
    center0.set(SkScalarAve(pts[0].fX, pts[1].fX),
                SkScalarAve(pts[0].fY, pts[1].fY));
    center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5),
                SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4));
    return SkGradientShader::MakeTwoPointConical(center1, 0.0,
                                                 center0, (pts[1].fX - pts[0].fX) / 2,
                                                 data.fColors, data.fPos, data.fCount, tm);
}

MakeLinear()

static sk_sp< SkShader > MakeLinear ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 52 of file GradientBench.cpp.

                                                              {
    return SkGradientShader::MakeLinear(pts, data.fColors, data.fPos, data.fCount, tm);
}

MakeRadial()

static sk_sp< SkShader > MakeRadial ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Definition at line 57 of file GradientBench.cpp.

                                                              {
    SkPoint center;
    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
               SkScalarAve(pts[0].fY, pts[1].fY));
    return SkGradientShader::MakeRadial(center, center.fX * scale, data.fColors,
                                        data.fPos, data.fCount, tm);
}

MakeSweep()

static sk_sp< SkShader > MakeSweep ( const SkPoint  pts[2], const GradData &  data, SkTileMode  tm, float  scale  )

static

Ignores scale.

Definition at line 67 of file GradientBench.cpp.

                                                             {
    SkPoint center;
    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
               SkScalarAve(pts[0].fY, pts[1].fY));
    return SkGradientShader::MakeSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount);
}

Variable Documentation

fMaker

GradMaker fMaker

Definition at line 133 of file GradientBench.cpp.

fName

const char* fName

Definition at line 134 of file GradientBench.cpp.

gColors

const SkColor gColors[]

static

Initial value:

= {
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK, 
}

Definition at line 25 of file GradientBench.cpp.

                                 {
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK,
    SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK, // 10 lines, 50 colors
};

gGradData

const GradData gGradData[]

static

Initial value:

= {
    { 2, gColors, nullptr, "" },
    { 50, gColors, nullptr, "_hicolor" }, 
    { 3, gColors, nullptr, "_3color" },
    { 2, gShallowColors, nullptr, "_shallow" },
    { 2, gColors, gPos, "_pos" },
}

Definition at line 43 of file GradientBench.cpp.

                                    {
    { 2, gColors, nullptr, "" },
    { 50, gColors, nullptr, "_hicolor" }, // many color gradient
    { 3, gColors, nullptr, "_3color" },
    { 2, gShallowColors, nullptr, "_shallow" },
    { 2, gColors, gPos, "_pos" },
};

[struct]

const struct { ... } gGrads[]

Initial value:

= {
    { MakeLinear,                 "linear"  },
    { MakeRadial,                 "radial1" },
    { MakeSweep,                  "sweep"   },
    { MakeConical,                "conical" },
    { MakeConicalZeroRad,         "conicalZero" },
    { MakeConicalOutside,         "conicalOut" },
    { MakeConicalOutsideZeroRad,  "conicalOutZero" },
}

gPos

const SkScalar gPos[] = {0.25f, 0.75f}

static

Definition at line 39 of file GradientBench.cpp.

{0.25f, 0.75f};

gShallowColors

const SkColor gShallowColors[] = { 0xFF555555, 0xFF444444 }

static

Definition at line 38 of file GradientBench.cpp.

{ 0xFF555555, 0xFF444444 };