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#include "SkBenchmark.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkGradientShader.h"
#include "SkPaint.h"
#include "SkShader.h"
#include "SkString.h"
#include "SkUnitMapper.h"
struct GradData {
int fCount;
const SkColor* fColors;
const SkScalar* fPos;
};
static const SkColor gColors[] = {
SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE, SK_ColorBLACK
};
static const SkScalar gPos0[] = { 0, SK_Scalar1 };
static const SkScalar gPos1[] = { SK_Scalar1/4, SK_Scalar1*3/4 };
static const SkScalar gPos2[] = {
0, SK_Scalar1/8, SK_Scalar1/2, SK_Scalar1*7/8, SK_Scalar1
};
static const GradData gGradData[] = {
{ 2, gColors, NULL },
{ 2, gColors, gPos0 },
{ 2, gColors, gPos1 },
{ 5, gColors, NULL },
{ 5, gColors, gPos2 }
};
static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data,
SkShader::TileMode tm, SkUnitMapper* mapper) {
return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos,
data.fCount, tm, mapper);
}
static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data,
SkShader::TileMode tm, SkUnitMapper* mapper) {
SkPoint center;
center.set(SkScalarAve(pts[0].fX, pts[1].fX),
SkScalarAve(pts[0].fY, pts[1].fY));
return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
data.fPos, data.fCount, tm, mapper);
}
static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data,
SkShader::TileMode tm, SkUnitMapper* mapper) {
SkPoint center;
center.set(SkScalarAve(pts[0].fX, pts[1].fX),
SkScalarAve(pts[0].fY, pts[1].fY));
return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors,
data.fPos, data.fCount, mapper);
}
static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data,
SkShader::TileMode tm, SkUnitMapper* mapper) {
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::CreateTwoPointRadial(
center1, (pts[1].fX - pts[0].fX) / 7,
center0, (pts[1].fX - pts[0].fX) / 2,
data.fColors, data.fPos, data.fCount, tm, mapper);
}
typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data,
SkShader::TileMode tm, SkUnitMapper* mapper);
static const struct {
GradMaker fMaker;
const char* fName;
int fRepeat;
} gGrads[] = {
{ MakeLinear, "linear", 15 },
{ MakeRadial, "radial1", 10 },
{ MakeSweep, "sweep", 1 },
{ Make2Radial, "radial2", 5 },
};
enum GradType { // these must match the order in gGrads
kLinear_GradType,
kRadial_GradType,
kSweep_GradType,
kRadial2_GradType
};
///////////////////////////////////////////////////////////////////////////////
class GradientBench : public SkBenchmark {
SkString fName;
SkShader* fShader;
int fCount;
enum {
W = 400,
H = 400,
N = 1
};
public:
GradientBench(void* param, GradType gt) : INHERITED(param) {
fName.printf("gradient_%s", gGrads[gt].fName);
const SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(W), SkIntToScalar(H) }
};
fCount = N * gGrads[gt].fRepeat;
fShader = gGrads[gt].fMaker(pts, gGradData[0],
SkShader::kClamp_TileMode, NULL);
}
virtual ~GradientBench() {
fShader->unref();
}
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
paint.setShader(fShader);
SkRect r = { 0, 0, SkIntToScalar(W), SkIntToScalar(H) };
for (int i = 0; i < fCount; i++) {
canvas->drawRect(r, paint);
}
}
private:
typedef SkBenchmark INHERITED;
};
static SkBenchmark* Fact0(void* p) { return new GradientBench(p, kLinear_GradType); }
static SkBenchmark* Fact1(void* p) { return new GradientBench(p, kRadial_GradType); }
static SkBenchmark* Fact2(void* p) { return new GradientBench(p, kSweep_GradType); }
static SkBenchmark* Fact3(void* p) { return new GradientBench(p, kRadial2_GradType); }
static BenchRegistry gReg0(Fact0);
static BenchRegistry gReg1(Fact1);
static BenchRegistry gReg2(Fact2);
static BenchRegistry gReg3(Fact3);
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