Flutter Engine
The Flutter Engine
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skpaint_compose.cpp
Go to the documentation of this file.
1// Copyright 2020 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
4REG_FIDDLE(skpaint_compose, 256, 256, false, 0) {
5void draw(SkCanvas* canvas) {
8 paint.setShader(SkShaders::Blend(SkBlendMode::kDifference,
10 180.0f,
11 colors,
12 nullptr,
13 2,
15 0,
16 nullptr),
17 SkShaders::MakeTurbulence(0.025f, 0.025f, 2, 0.0f, nullptr)));
18 canvas->drawPaint(paint);
19}
20} // END FIDDLE
@ kDifference
rc = s + d - 2*(min(s*da, d*sa)), ra = kSrcOver
constexpr SkColor SK_ColorYELLOW
Definition SkColor.h:139
uint32_t SkColor
Definition SkColor.h:37
constexpr SkColor SK_ColorBLUE
Definition SkColor.h:135
static void draw(SkCanvas *canvas, SkRect &target, int x, int y)
Definition aaclip.cpp:27
void drawPaint(const SkPaint &paint)
static sk_sp< SkShader > MakeRadial(const SkPoint &center, SkScalar radius, const SkColor colors[], const SkScalar pos[], int count, SkTileMode mode, uint32_t flags=0, const SkMatrix *localMatrix=nullptr)
const Paint & paint
#define REG_FIDDLE(NAME, W, H, TEXT, I)
Definition examples.h:60
SK_API sk_sp< SkShader > MakeTurbulence(SkScalar baseFrequencyX, SkScalar baseFrequencyY, int numOctaves, SkScalar seed, const SkISize *tileSize=nullptr)
static constexpr SkPoint Make(float x, float y)