Update ripple spec (33efde78) · Commits · e / os / android_frameworks_base

graphics/java/android/graphics/drawable/RippleAnimationSession.java

+85 −48

Original line number	Diff line number	Diff line
		@@ -27,8 +27,9 @@ import android.graphics.Paint;
		import android.graphics.RecordingCanvas;
		import android.graphics.animation.RenderNodeAnimator;
		import android.util.ArraySet;
		import android.view.animation.DecelerateInterpolator;
		import android.view.animation.AnimationUtils;
		import android.view.animation.LinearInterpolator;
		import android.view.animation.PathInterpolator;

		import java.util.function.Consumer;

		@@ -36,32 +37,41 @@ import java.util.function.Consumer;
		* @hide
		*/
		public final class RippleAnimationSession {
		private static final int ENTER_ANIM_DURATION = 350;
		private static final int EXIT_ANIM_OFFSET = ENTER_ANIM_DURATION;
		private static final int EXIT_ANIM_DURATION = 350;
		private static final String TAG = "RippleAnimationSession";
		private static final int ENTER_ANIM_DURATION = 300;
		private static final int SLIDE_ANIM_DURATION = 450;
		private static final int EXIT_ANIM_DURATION = 300;
		private static final TimeInterpolator LINEAR_INTERPOLATOR = new LinearInterpolator();
		// Matches R.interpolator.fast_out_slow_in but as we have no context we can't just import that
		private static final TimeInterpolator DECELERATE_INTERPOLATOR = new DecelerateInterpolator();

		private static final TimeInterpolator PATH_INTERPOLATOR =
		new PathInterpolator(.2f, 0, 0, 1f);
		private Consumer<RippleAnimationSession> mOnSessionEnd;
		private AnimationProperties<Float, Paint> mProperties;
		private final AnimationProperties<Float, Paint> mProperties;
		private AnimationProperties<CanvasProperty<Float>, CanvasProperty<Paint>> mCanvasProperties;
		private Runnable mOnUpdate;
		private long mStartTime;
		private boolean mForceSoftware;
		private ArraySet<Animator> mActiveAnimations = new ArraySet(3);
		private final float mWidth, mHeight;
		private final ValueAnimator mSparkle = ValueAnimator.ofFloat(0, 1);
		private final ArraySet<Animator> mActiveAnimations = new ArraySet<>(3);

		RippleAnimationSession(@NonNull AnimationProperties<Float, Paint> properties,
		boolean forceSoftware) {
		boolean forceSoftware, float width, float height) {
		mProperties = properties;
		mForceSoftware = forceSoftware;
		}

		void end() {
		for (Animator anim: mActiveAnimations) {
		if (anim != null) anim.end();
		}
		mActiveAnimations.clear();
		mWidth = width;
		mHeight = height;

		mSparkle.addUpdateListener(anim -> {
		final long now = AnimationUtils.currentAnimationTimeMillis();
		final long elapsed = now - mStartTime - ENTER_ANIM_DURATION;
		final float phase = (float) elapsed / 1000f;
		mProperties.getShader().setSecondsOffset(phase);
		notifyUpdate();
		});
		mSparkle.setDuration(ENTER_ANIM_DURATION);
		mSparkle.setStartDelay(ENTER_ANIM_DURATION);
		mSparkle.setInterpolator(LINEAR_INTERPOLATOR);
		mSparkle.setRepeatCount(ValueAnimator.INFINITE);
		}

		@NonNull RippleAnimationSession enter(Canvas canvas) {
		@@ -70,17 +80,19 @@ public final class RippleAnimationSession {
		} else {
		enterSoftware();
		}
		mStartTime = System.nanoTime();
		mStartTime = AnimationUtils.currentAnimationTimeMillis();
		return this;
		}

		@NonNull RippleAnimationSession exit(Canvas canvas) {
		mSparkle.end();
		if (isHwAccelerated(canvas)) exitHardware((RecordingCanvas) canvas);
		else exitSoftware();
		return this;
		}

		private void onAnimationEnd(Animator anim) {
		notifyUpdate();
		mActiveAnimations.remove(anim);
		}

		@@ -92,7 +104,6 @@ public final class RippleAnimationSession {

		RippleAnimationSession setOnAnimationUpdated(@Nullable Runnable run) {
		mOnUpdate = run;
		mProperties.setOnChange(mOnUpdate);
		return this;
		}

		@@ -122,14 +133,12 @@ public final class RippleAnimationSession {
		}

		private long computeDelay() {
		long currentTime = System.nanoTime();
		long timePassed = (currentTime - mStartTime) / 1_000_000;
		long difference = EXIT_ANIM_OFFSET;
		return Math.max(difference - timePassed, 0);
		final long timePassed = AnimationUtils.currentAnimationTimeMillis() - mStartTime;
		return Math.max((long) SLIDE_ANIM_DURATION - timePassed, 0);
		}

		private void notifyUpdate() {
		Runnable onUpdate = mOnUpdate;
		if (onUpdate != null) onUpdate.run();
		if (mOnUpdate != null) mOnUpdate.run();
		}

		RippleAnimationSession setForceSoftwareAnimation(boolean forceSw) {
		@@ -153,7 +162,7 @@ public final class RippleAnimationSession {
		}
		});
		exit.setTarget(canvas);
		exit.setInterpolator(DECELERATE_INTERPOLATOR);
		exit.setInterpolator(LINEAR_INTERPOLATOR);

		long delay = computeDelay();
		exit.setStartDelay(delay);
		@@ -161,36 +170,67 @@ public final class RippleAnimationSession {
		mActiveAnimations.add(exit);
		}

		private void enterHardware(RecordingCanvas can) {
		private void enterHardware(RecordingCanvas canvas) {
		AnimationProperties<CanvasProperty<Float>, CanvasProperty<Paint>>
		props = getCanvasProperties();
		RenderNodeAnimator expand =
		new RenderNodeAnimator(props.getProgress(), .5f);
		expand.setTarget(can);
		expand.setDuration(ENTER_ANIM_DURATION);
		expand.addListener(new AnimatorListener(this));
		RenderNodeAnimator slideX =
		new RenderNodeAnimator(props.getX(), mWidth / 2);
		RenderNodeAnimator slideY =
		new RenderNodeAnimator(props.getY(), mHeight / 2);
		expand.setTarget(canvas);
		slideX.setTarget(canvas);
		slideY.setTarget(canvas);
		startAnimation(expand, slideX, slideY);
		}

		private void startAnimation(Animator expand,
		Animator slideX, Animator slideY) {
		expand.setDuration(SLIDE_ANIM_DURATION);
		slideX.setDuration(SLIDE_ANIM_DURATION);
		slideY.setDuration(SLIDE_ANIM_DURATION);
		slideX.addListener(new AnimatorListener(this));
		expand.setInterpolator(LINEAR_INTERPOLATOR);
		slideX.setInterpolator(PATH_INTERPOLATOR);
		slideY.setInterpolator(PATH_INTERPOLATOR);
		expand.start();
		slideX.start();
		slideY.start();
		if (!mSparkle.isRunning()) {
		mSparkle.start();
		mActiveAnimations.add(mSparkle);
		}
		mActiveAnimations.add(expand);
		mActiveAnimations.add(slideX);
		mActiveAnimations.add(slideY);
		}

		private void enterSoftware() {
		ValueAnimator expand = ValueAnimator.ofFloat(0f, 0.5f);
		ValueAnimator slideX = ValueAnimator.ofFloat(
		mProperties.getX(), mWidth / 2);
		ValueAnimator slideY = ValueAnimator.ofFloat(
		mProperties.getY(), mHeight / 2);
		expand.addUpdateListener(updatedAnimation -> {
		notifyUpdate();
		mProperties.getShader().setProgress((Float) expand.getAnimatedValue());
		});
		expand.addListener(new AnimatorListener(this));
		expand.setInterpolator(LINEAR_INTERPOLATOR);
		expand.start();
		mActiveAnimations.add(expand);
		slideX.addUpdateListener(anim -> {
		float x = (float) slideX.getAnimatedValue();
		float y = (float) slideY.getAnimatedValue();
		mProperties.setOrigin(x, y);
		mProperties.getShader().setOrigin(x, y);
		});
		startAnimation(expand, slideX, slideY);
		}

		@NonNull AnimationProperties<Float, Paint> getProperties() {
		return mProperties;
		}

		@NonNull AnimationProperties getCanvasProperties() {
		@NonNull
		AnimationProperties<CanvasProperty<Float>, CanvasProperty<Paint>> getCanvasProperties() {
		if (mCanvasProperties == null) {
		mCanvasProperties = new AnimationProperties<>(
		CanvasProperty.createFloat(mProperties.getX()),
		@@ -209,6 +249,7 @@ public final class RippleAnimationSession {
		AnimatorListener(RippleAnimationSession session) {
		mSession = session;
		}

		@Override
		public void onAnimationStart(Animator animation) {

		@@ -231,21 +272,12 @@ public final class RippleAnimationSession {
		}

		static class AnimationProperties<FloatType, PaintType> {
		private final FloatType mY;
		private FloatType mProgress;
		private FloatType mMaxRadius;
		private final FloatType mProgress;
		private final FloatType mMaxRadius;
		private final PaintType mPaint;
		private final FloatType mX;
		private final RippleShader mShader;
		private Runnable mOnChange;

		private void onChange() {
		if (mOnChange != null) mOnChange.run();
		}

		private void setOnChange(Runnable onChange) {
		mOnChange = onChange;
		}
		private FloatType mX;
		private FloatType mY;

		AnimationProperties(FloatType x, FloatType y, FloatType maxRadius,
		PaintType paint, FloatType progress, RippleShader shader) {
		@@ -261,6 +293,11 @@ public final class RippleAnimationSession {
		return mProgress;
		}

		void setOrigin(FloatType x, FloatType y) {
		mX = x;
		mY = y;
		}

		FloatType getX() {
		return mX;
		}

graphics/java/android/graphics/drawable/RippleDrawable.java

+29 −29

Original line number	Diff line number	Diff line
		@@ -48,6 +48,7 @@ import android.graphics.RecordingCanvas;
		import android.graphics.Rect;
		import android.graphics.Shader;
		import android.os.Build;
		import android.os.SystemProperties;
		import android.util.AttributeSet;
		import android.view.animation.LinearInterpolator;

		@@ -159,6 +160,9 @@ public class RippleDrawable extends LayerDrawable {
		/** The maximum number of ripples supported. */
		private static final int MAX_RIPPLES = 10;
		private static final LinearInterpolator LINEAR_INTERPOLATOR = new LinearInterpolator();
		/ Temporary flag for teamfood. /
		private static final boolean FORCE_PATTERNED_STYLE =
		SystemProperties.getBoolean("persist.material.patternedripple", false);

		private final Rect mTempRect = new Rect();

		@@ -361,7 +365,9 @@ public class RippleDrawable extends LayerDrawable {
		}
		} else {
		if (focused \|\| hovered) {
		if (!pressed) {
		enterPatternedBackgroundAnimation(focused, hovered);
		}
		} else {
		exitPatternedBackgroundAnimation();
		}
		@@ -571,7 +577,10 @@ public class RippleDrawable extends LayerDrawable {
		mState.mMaxRadius = a.getDimensionPixelSize(
		R.styleable.RippleDrawable_radius, mState.mMaxRadius);

		mState.mRippleStyle = a.getInteger(R.styleable.RippleDrawable_rippleStyle, STYLE_SOLID);
		if (!FORCE_PATTERNED_STYLE) {
		mState.mRippleStyle = a.getInteger(R.styleable.RippleDrawable_rippleStyle,
		mState.mRippleStyle);
		}
		}

		private void verifyRequiredAttributes(@NonNull TypedArray a) throws XmlPullParserException {
		@@ -812,21 +821,25 @@ public class RippleDrawable extends LayerDrawable {
		}

		private void drawPatterned(@NonNull Canvas canvas) {
		final Rect bounds = getBounds();
		final Rect bounds = getDirtyBounds();
		final int saveCount = canvas.save(Canvas.CLIP_SAVE_FLAG);
		boolean useCanvasProps = shouldUseCanvasProps(canvas);
		boolean changedHotspotBounds = !bounds.equals(mHotspotBounds);
		if (isBounded()) {
		canvas.clipRect(mHotspotBounds);
		canvas.clipRect(bounds);
		}
		float x, y;
		float x, y, w, h;
		if (changedHotspotBounds) {
		x = mHotspotBounds.exactCenterX();
		y = mHotspotBounds.exactCenterY();
		w = mHotspotBounds.width();
		h = mHotspotBounds.height();
		useCanvasProps = false;
		} else {
		x = mPendingX;
		y = mPendingY;
		w = bounds.width();
		h = bounds.height();
		}
		boolean shouldAnimate = mRippleActive;
		boolean shouldExit = mExitingAnimation;
		@@ -837,9 +850,9 @@ public class RippleDrawable extends LayerDrawable {
		drawPatternedBackground(canvas);
		if (shouldAnimate && mRunningAnimations.size() <= MAX_RIPPLES) {
		RippleAnimationSession.AnimationProperties<Float, Paint> properties =
		createAnimationProperties(x, y);
		mRunningAnimations.add(new RippleAnimationSession(properties, !useCanvasProps)
		.setOnAnimationUpdated(useCanvasProps ? null : () -> invalidateSelf(false))
		createAnimationProperties(x, y, w, h);
		mRunningAnimations.add(new RippleAnimationSession(properties, !useCanvasProps, w, h)
		.setOnAnimationUpdated(() -> invalidateSelf(false))
		.setOnSessionEnd(session -> {
		mRunningAnimations.remove(session);
		})
		@@ -864,20 +877,8 @@ public class RippleDrawable extends LayerDrawable {
		} else {
		RippleAnimationSession.AnimationProperties<Float, Paint> p =
		s.getProperties();
		float posX, posY;
		if (changedHotspotBounds) {
		posX = x;
		posY = y;
		if (p.getPaint().getShader() instanceof RippleShader) {
		RippleShader shader = (RippleShader) p.getPaint().getShader();
		shader.setOrigin(posX, posY);
		}
		} else {
		posX = p.getX();
		posY = p.getY();
		}
		float radius = p.getMaxRadius();
		canvas.drawCircle(posX, posY, radius, p.getPaint());
		canvas.drawCircle(p.getX(), p.getY(), radius, p.getPaint());
		}
		}
		canvas.restoreToCount(saveCount);
		@@ -905,14 +906,13 @@ public class RippleDrawable extends LayerDrawable {

		private float computeRadius() {
		Rect b = getDirtyBounds();
		float gap = 0;
		float radius = (float) Math.sqrt(b.width() * b.width() + b.height() * b.height()) / 2 + gap;
		float radius = (float) Math.sqrt(b.width() * b.width() + b.height() * b.height()) / 2;
		return radius;
		}

		@NonNull
		private RippleAnimationSession.AnimationProperties<Float, Paint> createAnimationProperties(
		float x, float y) {
		float x, float y, float w, float h) {
		Paint p = new Paint(mRipplePaint);
		float radius = mState.mMaxRadius;
		RippleAnimationSession.AnimationProperties<Float, Paint> properties;
		@@ -920,19 +920,19 @@ public class RippleDrawable extends LayerDrawable {
		int color = mMaskColorFilter == null
		? mState.mColor.getColorForState(getState(), Color.BLACK)
		: mMaskColorFilter.getColor();
		color = color \| 0xFF000000;
		shader.setColor(color);
		shader.setOrigin(x, y);
		shader.setResolution(w, h);
		shader.setSecondsOffset(0);
		shader.setRadius(radius);
		shader.setProgress(.0f);
		properties = new RippleAnimationSession.AnimationProperties<>(
		x, y, radius, p, 0f,
		shader);
		if (mMaskShader == null) {
		shader.setHasMask(false);
		shader.setShader(null);
		} else {
		shader.setShader(mMaskShader);
		shader.setHasMask(true);
		}
		p.setShader(shader);
		p.setColorFilter(null);
		@@ -1160,7 +1160,7 @@ public class RippleDrawable extends LayerDrawable {
		// The ripple timing depends on the paint's alpha value, so we need
		// to push just the alpha channel into the paint and let the filter
		// handle the full-alpha color.
		int maskColor = color \| 0xFF000000;
		int maskColor = mState.mRippleStyle == STYLE_PATTERNED ? color : color \| 0xFF000000;
		if (mMaskColorFilter.getColor() != maskColor) {
		mMaskColorFilter = new PorterDuffColorFilter(maskColor, mMaskColorFilter.getMode());
		}
		@@ -1276,7 +1276,7 @@ public class RippleDrawable extends LayerDrawable {
		@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
		ColorStateList mColor = ColorStateList.valueOf(Color.MAGENTA);
		int mMaxRadius = RADIUS_AUTO;
		int mRippleStyle = STYLE_SOLID;
		int mRippleStyle = FORCE_PATTERNED_STYLE ? STYLE_PATTERNED : STYLE_SOLID;

		public RippleState(LayerState orig, RippleDrawable owner, Resources res) {
		super(orig, owner, res);

graphics/java/android/graphics/drawable/RippleShader.java

+135 −37

Original line number	Diff line number	Diff line
		@@ -17,58 +17,153 @@
		package android.graphics.drawable;

		import android.annotation.ColorInt;
		import android.annotation.NonNull;
		import android.graphics.Color;
		import android.graphics.RuntimeShader;
		import android.graphics.Shader;

		final class RippleShader extends RuntimeShader {
		private static final String SHADER = "uniform float2 in_origin;\n"
		+ "uniform float in_maxRadius;\n"
		private static final String SHADER_UNIFORMS = "uniform vec2 in_origin;\n"
		+ "uniform float in_progress;\n"
		+ "uniform float in_maxRadius;\n"
		+ "uniform vec2 in_resolution;\n"
		+ "uniform float in_hasMask;\n"
		+ "uniform float4 in_color;\n"
		+ "uniform shader in_shader;\n"
		+ "float dist2(float2 p0, float2 pf) { return sqrt((pf.x - p0.x) * (pf.x - p0.x) + "
		+ "(pf.y - p0.y) * (pf.y - p0.y)); }\n"
		+ "float mod2(float a, float b) { return a - (b * floor(a / b)); }\n"
		+ "float rand(float2 src) { return fract(sin(dot(src.xy, float2(12.9898, 78.233))) * "
		+ "43758.5453123); }\n"
		+ "float4 main(float2 p)\n"
		+ "{\n"
		+ " float fraction = in_progress;\n"
		+ " float2 fragCoord = p;//sk_FragCoord.xy;\n"
		+ " float maxDist = in_maxRadius;\n"
		+ " float fragDist = dist2(in_origin, fragCoord.xy);\n"
		+ " float circleRadius = maxDist * fraction;\n"
		+ " float colorVal = (fragDist - circleRadius) / maxDist;\n"
		+ " float d = fragDist < circleRadius \n"
		+ " ? 1. - abs(colorVal * 3. * smoothstep(0., 1., fraction)) \n"
		+ " : 1. - abs(colorVal * 5.);\n"
		+ " d = smoothstep(0., 1., d);\n"
		+ " float divider = 2.;\n"
		+ " float x = floor(fragCoord.x / divider);\n"
		+ " float y = floor(fragCoord.y / divider);\n"
		+ " float density = .95;\n"
		+ " d = rand(float2(x, y)) > density ? d : d * .2;\n"
		+ " d = d * rand(float2(fraction, x * y));\n"
		+ " float alpha = 1. - pow(fraction, 2.);\n"
		+ " if (in_hasMask != 0.) {return sample(in_shader).a * in_color * d * alpha;}\n"
		+ " return in_color * d * alpha;\n"
		+ "uniform float in_secondsOffset;\n"
		+ "uniform vec4 in_color;\n"
		+ "uniform shader in_shader;\n";
		private static final String SHADER_LIB =
		"float triangleNoise(vec2 n) {\n"
		+ " n = fract(n * vec2(5.3987, 5.4421));\n"
		+ " n += dot(n.yx, n.xy + vec2(21.5351, 14.3137));\n"
		+ " float xy = n.x * n.y;\n"
		+ " return fract(xy * 95.4307) + fract(xy * 75.04961) - 1.0;\n"
		+ "}"
		+ "const float PI = 3.1415926535897932384626;\n"
		+ "\n"
		+ "float threshold(float v, float l, float h) {\n"
		+ " return step(l, v) * (1.0 - step(h, v));\n"
		+ "}\n"
		+ "\n"
		+ "float sparkles(vec2 uv, float t) {\n"
		+ " float n = triangleNoise(uv);\n"
		+ " float s = 0.0;\n"
		+ " for (float i = 0; i < 4; i += 1) {\n"
		+ " float l = i * 0.25;\n"
		+ " float h = l + 0.025;\n"
		+ " float o = abs(sin(0.1 * PI * (t + i)));\n"
		+ " s += threshold(n + o, l, h);\n"
		+ " }\n"
		+ " return saturate(s);\n"
		+ "}\n"
		+ "\n"
		+ "float softCircle(vec2 uv, vec2 xy, float radius, float blur) {\n"
		+ " float blurHalf = blur * 0.5;\n"
		+ " float d = distance(uv, xy);\n"
		+ " return 1. - smoothstep(1. - blurHalf, 1. + blurHalf, d / radius);\n"
		+ "}\n"
		+ "\n"
		+ "float softRing(vec2 uv, vec2 xy, float radius, float blur) {\n"
		+ " float thickness = 0.4;\n"
		+ " float circle_outer = softCircle(uv, xy, radius + thickness * 0.5, blur);\n"
		+ " float circle_inner = softCircle(uv, xy, radius - thickness * 0.5, blur);\n"
		+ " return circle_outer - circle_inner;\n"
		+ "}\n"
		+ "\n"
		+ "struct Viewport {\n"
		+ " float aspect;\n"
		+ " vec2 uv;\n"
		+ " vec2 resolution_pixels;\n"
		+ "};\n"
		+ "\n"
		+ "Viewport getViewport(vec2 frag_coord, vec2 resolution_pixels) {\n"
		+ " Viewport v;\n"
		+ " v.aspect = resolution_pixels.y / resolution_pixels.x;\n"
		+ " v.uv = frag_coord / resolution_pixels;\n"
		+ " v.uv.y = (1.0 - v.uv.y) * v.aspect;\n"
		+ " v.resolution_pixels = resolution_pixels;\n"
		+ " return v;\n"
		+ "}\n"
		+ "\n"
		+ "vec2 getTouch(vec2 touch_position_pixels, Viewport viewport) {\n"
		+ " vec2 touch = touch_position_pixels / viewport.resolution_pixels;\n"
		+ " touch.y *= viewport.aspect;\n"
		+ " return touch;\n"
		+ "}\n"
		+ "\n"
		+ "struct Wave {\n"
		+ " float ring;\n"
		+ " float circle;\n"
		+ "};\n"
		+ "\n"
		+ "Wave getWave(Viewport viewport, vec2 touch, float progress) {\n"
		+ " float fade = pow((clamp(progress, 0.8, 1.0)), 8.);\n"
		+ " Wave w;\n"
		+ " w.ring = max(softRing(viewport.uv, touch, progress, 0.45) - fade, 0.);\n"
		+ " w.circle = softCircle(viewport.uv, touch, 2.0 * progress, 0.2) - progress;\n"
		+ " return w;\n"
		+ "}\n"
		+ "\n"
		+ "vec4 getRipple(vec4 color, float loudness, float sparkle, Wave wave) {\n"
		+ " float alpha = wave.ring * sparkle * loudness\n"
		+ " + wave.circle * color.a;\n"
		+ " return vec4(color.rgb, saturate(alpha));\n"
		+ "}\n"
		+ "\n"
		+ "float getRingMask(vec2 frag, vec2 center, float r, float progress) {\n"
		+ " float dist = distance(frag, center);\n"
		+ " float expansion = r * .6;\n"
		+ " r = r * min(1.,progress);\n"
		+ " float minD = max(r - expansion, 0.);\n"
		+ " float maxD = r + expansion;\n"
		+ " if (dist > maxD \|\| dist < minD) return .0;\n"
		+ " return min(maxD - dist, dist - minD) / expansion; \n"
		+ "}\n"
		+ "\n"
		+ "float subProgress(float start, float end, float progress) {\n"
		+ " float sub = clamp(progress, start, end);\n"
		+ " return (sub - start) / (end - start); \n"
		+ "}\n";
		private static final String SHADER_MAIN = "vec4 main(vec2 p) {\n"
		+ " float fadeIn = subProgress(0., 0.175, in_progress);\n"
		+ " float fadeOutNoise = subProgress(0.375, 1., in_progress);\n"
		+ " float fadeOutRipple = subProgress(0.375, 0.75, in_progress);\n"
		+ " Viewport vp = getViewport(p, in_resolution);\n"
		+ " vec2 touch = getTouch(in_origin, vp);\n"
		+ " Wave w = getWave(vp, touch, in_progress * 0.25);\n"
		+ " float ring = getRingMask(p, in_origin, in_maxRadius, fadeIn);\n"
		+ " float alpha = min(fadeIn, 1. - fadeOutNoise);\n"
		+ " float sparkle = sparkles(p, in_progress * 0.25 + in_secondsOffset)\n"
		+ " * ring * alpha;\n"
		+ " vec4 r = getRipple(in_color, 1., sparkle, w);\n"
		+ " float fade = min(fadeIn, 1.-fadeOutRipple);\n"
		+ " vec4 circle = vec4(in_color.rgb, softCircle(p, in_origin, in_maxRadius "
		+ " * fadeIn, 0.2) * fade * in_color.a);\n"
		+ " float mask = in_hasMask == 1. ? sample(in_shader).a > 0. ? 1. : 0. : 1.;\n"
		+ " return mix(circle, vec4(1.), sparkle * mask);\n"
		+ "}";
		private static final String SHADER = SHADER_UNIFORMS + SHADER_LIB + SHADER_MAIN;

		RippleShader() {
		super(SHADER, false);
		}

		public void setShader(@NonNull Shader s) {
		setInputShader("in_shader", s);
		public void setShader(Shader shader) {
		if (shader != null) {
		setInputShader("in_shader", shader);
		}
		setUniform("in_hasMask", shader == null ? 0 : 1);
		}

		public void setRadius(float radius) {
		setUniform("in_maxRadius", radius);
		}

		/**
		* Continuous offset used as noise phase.
		*/
		public void setSecondsOffset(float t) {
		setUniform("in_secondsOffset", t);
		}

		public void setOrigin(float x, float y) {
		setUniform("in_origin", new float[] {x, y});
		}
		@@ -77,13 +172,16 @@ final class RippleShader extends RuntimeShader {
		setUniform("in_progress", progress);
		}

		public void setHasMask(boolean hasMask) {
		setUniform("in_hasMask", hasMask ? 1 : 0);
		}

		/**
		* Color of the circle that's under the sparkles. Sparkles will always be white.
		*/
		public void setColor(@ColorInt int colorIn) {
		Color color = Color.valueOf(colorIn);
		this.setUniform("in_color", new float[] {color.red(),
		color.green(), color.blue(), color.alpha()});
		}

		public void setResolution(float w, float h) {
		setUniform("in_resolution", w, h);
		}
		}