9d524f22bf
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002 Review URL: https://codereview.chromium.org/1842753002
85 lines
3.0 KiB
C++
85 lines
3.0 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.h"
|
|
#include "SkGradientShader.h"
|
|
|
|
typedef sk_sp<SkShader> (*MakeShaderProc)(const SkColor[], int count, const SkSize&);
|
|
|
|
static sk_sp<SkShader> shader_linear(const SkColor colors[], int count, const SkSize& size) {
|
|
SkPoint pts[] = { { 0, 0 }, { size.width(), size.height() } };
|
|
return SkGradientShader::MakeLinear(pts, colors, nullptr, count, SkShader::kClamp_TileMode);
|
|
}
|
|
|
|
static sk_sp<SkShader> shader_radial(const SkColor colors[], int count, const SkSize& size) {
|
|
SkPoint center = { size.width()/2, size.height()/2 };
|
|
return SkGradientShader::MakeRadial(center, size.width()/2, colors, nullptr, count,
|
|
SkShader::kClamp_TileMode);
|
|
}
|
|
|
|
static sk_sp<SkShader> shader_conical(const SkColor colors[], int count, const SkSize& size) {
|
|
SkPoint center = { size.width()/2, size.height()/2 };
|
|
return SkGradientShader::MakeTwoPointConical(center, size.width()/64, center, size.width()/2,
|
|
colors, nullptr, count, SkShader::kClamp_TileMode);
|
|
}
|
|
|
|
static sk_sp<SkShader> shader_sweep(const SkColor colors[], int count, const SkSize& size) {
|
|
return SkGradientShader::MakeSweep(size.width()/2, size.height()/2, colors, nullptr, count);
|
|
}
|
|
|
|
class ShallowGradientGM : public skiagm::GM {
|
|
public:
|
|
ShallowGradientGM(MakeShaderProc proc, const char name[], bool dither)
|
|
: fProc(proc)
|
|
, fDither(dither) {
|
|
fName.printf("shallow_gradient_%s", name);
|
|
}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() override {
|
|
return fName;
|
|
}
|
|
|
|
SkISize onISize() override {
|
|
return SkISize::Make(800, 800);
|
|
}
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
const SkColor colors[] = { sk_tool_utils::color_to_565(0xFF555555),
|
|
sk_tool_utils::color_to_565(0xFF444444) };
|
|
const int colorCount = SK_ARRAY_COUNT(colors);
|
|
|
|
SkRect r = { 0, 0, this->width(), this->height() };
|
|
SkSize size = SkSize::Make(r.width(), r.height());
|
|
|
|
SkPaint paint;
|
|
paint.setShader(fProc(colors, colorCount, size));
|
|
paint.setDither(fDither);
|
|
canvas->drawRect(r, paint);
|
|
}
|
|
|
|
private:
|
|
MakeShaderProc fProc;
|
|
SkString fName;
|
|
bool fDither;
|
|
|
|
typedef skiagm::GM INHERITED;
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM( return new ShallowGradientGM(shader_linear, "linear", true); )
|
|
DEF_GM( return new ShallowGradientGM(shader_radial, "radial", true); )
|
|
DEF_GM( return new ShallowGradientGM(shader_conical, "conical", true); )
|
|
DEF_GM( return new ShallowGradientGM(shader_sweep, "sweep", true); )
|
|
|
|
DEF_GM( return new ShallowGradientGM(shader_linear, "linear_nodither", false); )
|
|
DEF_GM( return new ShallowGradientGM(shader_radial, "radial_nodither", false); )
|
|
DEF_GM( return new ShallowGradientGM(shader_conical, "conical_nodither", false); )
|
|
DEF_GM( return new ShallowGradientGM(shader_sweep, "sweep_nodither", false); )
|