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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <SkCanvas.h>
#include <SkDrawable.h>
#include <SkRuntimeEffect.h>
#include <math.h>
#include <utils/RefBase.h>
#include "CanvasProperty.h"
#include "CanvasTransform.h"
namespace android {
namespace uirenderer {
namespace skiapipeline {
class AnimatedRoundRect : public SkDrawable {
public:
AnimatedRoundRect(uirenderer::CanvasPropertyPrimitive* left,
uirenderer::CanvasPropertyPrimitive* top,
uirenderer::CanvasPropertyPrimitive* right,
uirenderer::CanvasPropertyPrimitive* bottom,
uirenderer::CanvasPropertyPrimitive* rx,
uirenderer::CanvasPropertyPrimitive* ry, uirenderer::CanvasPropertyPaint* p)
: mLeft(left), mTop(top), mRight(right), mBottom(bottom), mRx(rx), mRy(ry), mPaint(p) {}
protected:
virtual SkRect onGetBounds() override {
return SkRect::MakeLTRB(mLeft->value, mTop->value, mRight->value, mBottom->value);
}
virtual void onDraw(SkCanvas* canvas) override {
SkRect rect = SkRect::MakeLTRB(mLeft->value, mTop->value, mRight->value, mBottom->value);
canvas->drawRoundRect(rect, mRx->value, mRy->value, mPaint->value);
}
private:
sp<uirenderer::CanvasPropertyPrimitive> mLeft;
sp<uirenderer::CanvasPropertyPrimitive> mTop;
sp<uirenderer::CanvasPropertyPrimitive> mRight;
sp<uirenderer::CanvasPropertyPrimitive> mBottom;
sp<uirenderer::CanvasPropertyPrimitive> mRx;
sp<uirenderer::CanvasPropertyPrimitive> mRy;
sp<uirenderer::CanvasPropertyPaint> mPaint;
};
struct RippleDrawableParams {
sp<uirenderer::CanvasPropertyPrimitive> x;
sp<uirenderer::CanvasPropertyPrimitive> y;
sp<uirenderer::CanvasPropertyPrimitive> radius;
sp<uirenderer::CanvasPropertyPrimitive> progress;
sp<uirenderer::CanvasPropertyPrimitive> turbulencePhase;
SkColor color;
sp<uirenderer::CanvasPropertyPaint> paint;
SkRuntimeShaderBuilder effectBuilder;
};
class AnimatedRippleDrawable {
public:
static void draw(SkCanvas* canvas, const RippleDrawableParams& params) {
auto& effectBuilder = const_cast<SkRuntimeShaderBuilder&>(params.effectBuilder);
setUniform2f(effectBuilder, "in_origin", params.x->value, params.y->value);
setUniform(effectBuilder, "in_radius", params.radius);
setUniform(effectBuilder, "in_progress", params.progress);
setUniform(effectBuilder, "in_turbulencePhase", params.turbulencePhase);
setUniform(effectBuilder, "in_noisePhase", params.turbulencePhase->value * 0.001);
SkRuntimeShaderBuilder::BuilderUniform uniform = effectBuilder.uniform("in_color");
if (uniform.fVar != nullptr) {
uniform = SkV4{SkColorGetR(params.color) / 255.0f, SkColorGetG(params.color) / 255.0f,
SkColorGetB(params.color) / 255.0f, SkColorGetA(params.color) / 255.0f};
}
const float CIRCLE_X_1 = 0.01 * cos(SCALE * 0.55);
const float CIRCLE_Y_1 = 0.01 * sin(SCALE * 0.55);
const float CIRCLE_X_2 = -0.0066 * cos(SCALE * 0.45);
const float CIRCLE_Y_2 = -0.0066 * sin(SCALE * 0.45);
const float CIRCLE_X_3 = -0.0066 * cos(SCALE * 0.35);
const float CIRCLE_Y_3 = -0.0066 * sin(SCALE * 0.35);
//
// Keep in sync with:
// frameworks/base/graphics/java/android/graphics/drawable/RippleShader.java
//
const float turbulencePhase = params.turbulencePhase->value;
setUniform2f(effectBuilder, "in_tCircle1", SCALE * 0.5 + (turbulencePhase * CIRCLE_X_1),
SCALE * 0.5 + (turbulencePhase * CIRCLE_Y_1));
setUniform2f(effectBuilder, "in_tCircle2", SCALE * 0.2 + (turbulencePhase * CIRCLE_X_2),
SCALE * 0.2 + (turbulencePhase * CIRCLE_Y_2));
setUniform2f(effectBuilder, "in_tCircle3", SCALE + (turbulencePhase * CIRCLE_X_3),
SCALE + (turbulencePhase * CIRCLE_Y_3));
const float rotation1 = turbulencePhase * PI_ROTATE_RIGHT + 1.7 * PI;
setUniform2f(effectBuilder, "in_tRotation1", cos(rotation1), sin(rotation1));
const float rotation2 = turbulencePhase * PI_ROTATE_LEFT + 2 * PI;
setUniform2f(effectBuilder, "in_tRotation2", cos(rotation2), sin(rotation2));
const float rotation3 = turbulencePhase * PI_ROTATE_RIGHT + 2.75 * PI;
setUniform2f(effectBuilder, "in_tRotation3", cos(rotation3), sin(rotation3));
params.paint->value.setShader(effectBuilder.makeShader());
canvas->drawCircle(params.x->value, params.y->value, params.radius->value,
params.paint->value);
}
private:
static constexpr float PI = 3.1415926535897932384626;
static constexpr float PI_ROTATE_RIGHT = PI * 0.0078125;
static constexpr float PI_ROTATE_LEFT = PI * -0.0078125;
static constexpr float SCALE = 1.5;
static void setUniform(SkRuntimeShaderBuilder& effectBuilder, const char* name,
sp<uirenderer::CanvasPropertyPrimitive> property) {
SkRuntimeShaderBuilder::BuilderUniform uniform = effectBuilder.uniform(name);
if (uniform.fVar != nullptr) {
uniform = property->value;
}
}
static void setUniform(SkRuntimeShaderBuilder& effectBuilder, const char* name, float value) {
SkRuntimeShaderBuilder::BuilderUniform uniform = effectBuilder.uniform(name);
if (uniform.fVar != nullptr) {
uniform = value;
}
}
static void setUniform2f(SkRuntimeShaderBuilder& effectBuilder, const char* name, float a,
float b) {
SkRuntimeShaderBuilder::BuilderUniform uniform = effectBuilder.uniform(name);
if (uniform.fVar != nullptr) {
uniform = SkV2{a, b};
}
}
};
class AnimatedCircle : public SkDrawable {
public:
AnimatedCircle(uirenderer::CanvasPropertyPrimitive* x, uirenderer::CanvasPropertyPrimitive* y,
uirenderer::CanvasPropertyPrimitive* radius,
uirenderer::CanvasPropertyPaint* paint)
: mX(x), mY(y), mRadius(radius), mPaint(paint) {}
protected:
virtual SkRect onGetBounds() override {
const float x = mX->value;
const float y = mY->value;
const float radius = mRadius->value;
return SkRect::MakeLTRB(x - radius, y - radius, x + radius, y + radius);
}
virtual void onDraw(SkCanvas* canvas) override {
canvas->drawCircle(mX->value, mY->value, mRadius->value, mPaint->value);
}
private:
sp<uirenderer::CanvasPropertyPrimitive> mX;
sp<uirenderer::CanvasPropertyPrimitive> mY;
sp<uirenderer::CanvasPropertyPrimitive> mRadius;
sp<uirenderer::CanvasPropertyPaint> mPaint;
};
} // namespace skiapipeline
} // namespace uirenderer
} // namespace android
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