7c70143055
Change-Id: I4b61c2a66f8d6b2d8c4a5ffd8c373b643415c70c Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211598 Commit-Queue: Hal Canary <halcanary@google.com> Reviewed-by: Ben Wagner <bungeman@google.com>
112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/*
|
|
* Copyright 2013 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "gm/gm.h"
|
|
#include "include/core/SkCanvas.h"
|
|
#include "include/core/SkColor.h"
|
|
#include "include/core/SkPaint.h"
|
|
#include "include/core/SkPoint.h"
|
|
#include "include/core/SkRect.h"
|
|
#include "include/core/SkRefCnt.h"
|
|
#include "include/core/SkScalar.h"
|
|
#include "include/core/SkShader.h"
|
|
#include "include/core/SkSize.h"
|
|
#include "include/core/SkString.h"
|
|
#include "include/core/SkTileMode.h"
|
|
#include "include/core/SkTypes.h"
|
|
#include "include/effects/SkGradientShader.h"
|
|
|
|
using namespace skiagm;
|
|
|
|
struct GradData {
|
|
int fCount;
|
|
const SkColor* fColors;
|
|
const SkScalar* fPos;
|
|
};
|
|
|
|
constexpr 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,
|
|
};
|
|
|
|
//constexpr SkScalar gPos[] = { SK_Scalar1*999/2000, SK_Scalar1*1001/2000 };
|
|
|
|
constexpr GradData gGradData[] = {
|
|
{ 40, gColors, nullptr },
|
|
// { 2, gColors, gPos },
|
|
// { 2, gCol2, nullptr },
|
|
};
|
|
|
|
static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], const GradData& data, SkTileMode tm) {
|
|
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) {
|
|
const SkPoint pt{ SkScalarAve(pts[0].fX, pts[1].fX), SkScalarAve(pts[0].fY, pts[1].fY) };
|
|
return SkGradientShader::MakeRadial(pt, pt.fX, data.fColors, data.fPos, data.fCount, tm);
|
|
}
|
|
|
|
static sk_sp<SkShader> MakeSweep(const SkPoint pts[2], const GradData& data, SkTileMode) {
|
|
const SkPoint pt{ SkScalarAve(pts[0].fX, pts[1].fX), SkScalarAve(pts[0].fY, pts[1].fY) };
|
|
return SkGradientShader::MakeSweep(pt.fX, pt.fY, data.fColors, data.fPos, data.fCount);
|
|
}
|
|
|
|
|
|
typedef sk_sp<SkShader> (*GradMaker)(const SkPoint pts[2], const GradData&, SkTileMode);
|
|
|
|
constexpr GradMaker gGradMakers[] = {
|
|
MakeLinear, MakeRadial, MakeSweep,
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
class GradientsGM : public GM {
|
|
public:
|
|
GradientsGM() {
|
|
this->setBGColor(0xFFDDDDDD);
|
|
}
|
|
|
|
protected:
|
|
SkString onShortName() override { return SkString("gradient_dirty_laundry"); }
|
|
SkISize onISize() override { return SkISize::Make(640, 615); }
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
SkPoint pts[2] = { { 0, 0 },
|
|
{ SkIntToScalar(100), SkIntToScalar(100) }
|
|
};
|
|
SkTileMode tm = SkTileMode::kClamp;
|
|
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true);
|
|
|
|
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
|
|
canvas->save();
|
|
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
|
|
paint.setShader(gGradMakers[j](pts, gGradData[i], tm));
|
|
canvas->drawRect(r, paint);
|
|
canvas->translate(0, SkIntToScalar(120));
|
|
}
|
|
canvas->restore();
|
|
canvas->translate(SkIntToScalar(120), 0);
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM( return new GradientsGM; )
|