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skia2/bench/GradientBench.cpp
Herb Derby e25c114f94 Replace SK_ARRAY_COUNT with std::size() for skia/bench 
Change-Id: I63ce1643364c6d2dd50e3622d66c64bdb3091418
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/550704
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Herb Derby <herb@google.com>
2022-06-17 00:25:28 +00:00

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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#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"
struct GradData {
int fCount;
const SkColor* fColors;
const SkScalar* fPos;
const char* fName;
};
static const SkColor gColors[] = {
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
};
static const SkColor gShallowColors[] = { 0xFF555555, 0xFF444444 };
static const SkScalar gPos[] = {0.25f, 0.75f};
// We have several special-cases depending on the number (and spacing) of colors, so
// try to exercise those here.
static const GradData gGradData[] = {
{ 2, gColors, nullptr, "" },
{ 50, gColors, nullptr, "_hicolor" }, // many color gradient
{ 3, gColors, nullptr, "_3color" },
{ 2, gShallowColors, nullptr, "_shallow" },
{ 2, gColors, gPos, "_pos" },
};
/// Ignores scale
static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
return SkGradientShader::MakeLinear(pts, data.fColors, data.fPos, data.fCount, tm);
}
static sk_sp<SkShader> MakeRadial(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
/// Ignores scale
static sk_sp<SkShader> MakeSweep(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
/// Ignores scale
static sk_sp<SkShader> MakeConical(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
/// Ignores scale
static sk_sp<SkShader> MakeConicalZeroRad(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
/// Ignores scale
static sk_sp<SkShader> MakeConicalOutside(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
/// Ignores scale
static sk_sp<SkShader> MakeConicalOutsideZeroRad(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale) {
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);
}
typedef sk_sp<SkShader> (*GradMaker)(const SkPoint pts[2], const GradData& data,
SkTileMode tm, float scale);
static const struct {
GradMaker fMaker;
const char* fName;
} gGrads[] = {
{ MakeLinear, "linear" },
{ MakeRadial, "radial1" },
{ MakeSweep, "sweep" },
{ MakeConical, "conical" },
{ MakeConicalZeroRad, "conicalZero" },
{ MakeConicalOutside, "conicalOut" },
{ MakeConicalOutsideZeroRad, "conicalOutZero" },
};
enum GradType { // these must match the order in gGrads
kLinear_GradType,
kRadial_GradType,
kSweep_GradType,
kConical_GradType,
kConicalZero_GradType,
kConicalOut_GradType,
kConicalOutZero_GradType
};
enum GeomType {
kRect_GeomType,
kOval_GeomType
};
static const char* geomtypename(GeomType gt) {
switch (gt) {
case kRect_GeomType:
return "rectangle";
case kOval_GeomType:
return "oval";
default:
SkDEBUGFAIL("unknown geometry type");
return "error";
}
}
///////////////////////////////////////////////////////////////////////////////
class GradientBench : public Benchmark {
public:
GradientBench(GradType gradType,
GradData data = gGradData[0],
SkTileMode tm = SkTileMode::kClamp,
GeomType geomType = kRect_GeomType,
float scale = 1.0f)
: fGeomType(geomType) {
fName.printf("gradient_%s_%s", gGrads[gradType].fName,
ToolUtils::tilemode_name(tm));
if (geomType != kRect_GeomType) {
fName.appendf("_%s", geomtypename(geomType));
}
if (scale != 1.f) {
fName.appendf("_scale_%g", scale);
}
fName.append(data.fName);
this->setupPaint(&fPaint);
fPaint.setShader(MakeShader(gradType, data, tm, scale));
}
GradientBench(GradType gradType, GradData data, bool dither)
: fGeomType(kRect_GeomType) {
const char *tmname = ToolUtils::tilemode_name(SkTileMode::kClamp);
fName.printf("gradient_%s_%s", gGrads[gradType].fName, tmname);
fName.append(data.fName);
if (dither) {
fName.appendf("_dither");
}
this->setupPaint(&fPaint);
fPaint.setShader(MakeShader(gradType, data, SkTileMode::kClamp, 1.0f));
fPaint.setDither(dither);
}
protected:
const char* onGetName() override {
return fName.c_str();
}
SkIPoint onGetSize() override {
return SkIPoint::Make(kSize, kSize);
}
void onDraw(int loops, SkCanvas* canvas) override {
const SkRect r = SkRect::MakeIWH(kSize, kSize);
for (int i = 0; i < loops; i++) {
switch (fGeomType) {
case kRect_GeomType:
canvas->drawRect(r, fPaint);
break;
case kOval_GeomType:
canvas->drawOval(r, fPaint);
break;
}
}
}
private:
using INHERITED = Benchmark;
sk_sp<SkShader> MakeShader(GradType gradType, GradData data,
SkTileMode tm, float scale) {
const SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(kSize), SkIntToScalar(kSize) }
};
return gGrads[gradType].fMaker(pts, data, tm, scale);
}
static const int kSize = 400;
SkString fName;
SkPaint fPaint;
const GeomType fGeomType;
};
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[0]); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[2]); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[4]); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[0], SkTileMode::kRepeat); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[1], SkTileMode::kRepeat); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[2], SkTileMode::kRepeat); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[0], SkTileMode::kMirror); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[1], SkTileMode::kMirror); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[2], SkTileMode::kMirror); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[0]); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[2]); )
// Draw a radial gradient of radius 1/2 on a rectangle; half the lines should
// be completely pinned, the other half should pe partially pinned
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[0], SkTileMode::kClamp, kRect_GeomType, 0.5f); )
// Draw a radial gradient on a circle of equal size; all the lines should
// hit the unpinned fast path (so long as GradientBench.W == H)
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[0], SkTileMode::kClamp, kOval_GeomType); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[0], SkTileMode::kMirror); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[0], SkTileMode::kRepeat); )
DEF_BENCH( return new GradientBench(kSweep_GradType); )
DEF_BENCH( return new GradientBench(kSweep_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kSweep_GradType, gGradData[2]); )
DEF_BENCH( return new GradientBench(kConical_GradType); )
DEF_BENCH( return new GradientBench(kConical_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kConical_GradType, gGradData[2]); )
DEF_BENCH( return new GradientBench(kConicalZero_GradType); )
DEF_BENCH( return new GradientBench(kConicalZero_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kConicalZero_GradType, gGradData[2]); )
DEF_BENCH( return new GradientBench(kConicalOut_GradType); )
DEF_BENCH( return new GradientBench(kConicalOut_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kConicalOut_GradType, gGradData[2]); )
DEF_BENCH( return new GradientBench(kConicalOutZero_GradType); )
DEF_BENCH( return new GradientBench(kConicalOutZero_GradType, gGradData[1]); )
DEF_BENCH( return new GradientBench(kConicalOutZero_GradType, gGradData[2]); )
// Dithering
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[3], true); )
DEF_BENCH( return new GradientBench(kLinear_GradType, gGradData[3], false); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[3], true); )
DEF_BENCH( return new GradientBench(kRadial_GradType, gGradData[3], false); )
DEF_BENCH( return new GradientBench(kSweep_GradType, gGradData[3], true); )
DEF_BENCH( return new GradientBench(kSweep_GradType, gGradData[3], false); )
DEF_BENCH( return new GradientBench(kConical_GradType, gGradData[3], true); )
DEF_BENCH( return new GradientBench(kConical_GradType, gGradData[3], false); )
///////////////////////////////////////////////////////////////////////////////
class Gradient2Bench : public Benchmark {
SkString fName;
bool fHasAlpha;
public:
Gradient2Bench(bool hasAlpha) {
fName.printf("gradient_create_%s", hasAlpha ? "alpha" : "opaque");
fHasAlpha = hasAlpha;
}
protected:
const char* onGetName() override {
return fName.c_str();
}
void onDraw(int loops, SkCanvas* canvas) override {
SkPaint paint;
this->setupPaint(&paint);
const SkRect r = { 0, 0, SkIntToScalar(4), SkIntToScalar(4) };
const SkPoint pts[] = {
{ 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) },
};
for (int i = 0; i < loops; i++) {
const int gray = i % 256;
const int alpha = fHasAlpha ? gray : 0xFF;
SkColor colors[] = {
SK_ColorBLACK,
SkColorSetARGB(alpha, gray, gray, gray),
SK_ColorWHITE };
paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr,
std::size(colors),
SkTileMode::kClamp));
canvas->drawRect(r, paint);
}
}
private:
using INHERITED = Benchmark;
};
DEF_BENCH( return new Gradient2Bench(false); )
DEF_BENCH( return new Gradient2Bench(true); )
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