Don't set the invisible flag when saving an empty layer. (af636ebf) · Commits · e / os / android_frameworks_base

core/java/android/view/View.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -6421,6 +6421,12 @@ public class View implements Drawable.Callback, KeyEvent.Callback, Accessibility
		mPrivateFlags &= ~DRAWING_CACHE_VALID;
		final ViewParent p = mParent;
		final AttachInfo ai = mAttachInfo;
		if (p != null && ai != null && ai.mHardwareAccelerated) {
		// fast-track for GL-enabled applications; just invalidate the whole hierarchy
		// with a null dirty rect, which tells the ViewRoot to redraw everything
		p.invalidateChild(this, null);
		return;
		}
		if (p != null && ai != null) {
		final int scrollX = mScrollX;
		final int scrollY = mScrollY;

libs/hwui/OpenGLRenderer.cpp

+13 −9

Original line number	Diff line number	Diff line
		@@ -268,7 +268,7 @@ int OpenGLRenderer::saveLayer(float left, float top, float right, float bottom,
		const GLuint previousFbo = mSnapshot->fbo;
		const int count = saveSnapshot(flags);

		if (!mSnapshot->invisible) {
		if (!mSnapshot->isIgnored()) {
		int alpha = 255;
		SkXfermode::Mode mode;

		@@ -385,13 +385,17 @@ bool OpenGLRenderer::createLayer(sp<Snapshot> snapshot, float left, float top,

		if (bounds.isEmpty() \|\| bounds.getWidth() > mCaches.maxTextureSize \|\|
		bounds.getHeight() > mCaches.maxTextureSize) {
		if (fboLayer) {
		snapshot->invisible = true;
		} else {
		snapshot->empty = true;
		}
		} else {
		snapshot->invisible = snapshot->invisible \|\| (alpha <= ALPHA_THRESHOLD && fboLayer);
		}

		// Bail out if we won't draw in this snapshot
		if (snapshot->invisible) {
		if (snapshot->invisible \|\| snapshot->empty) {
		return false;
		}

		@@ -731,7 +735,7 @@ void OpenGLRenderer::setupDraw() {
		}

		void OpenGLRenderer::clearLayerRegions() {
		if (mLayers.size() == 0 \|\| mSnapshot->invisible) return;
		if (mLayers.size() == 0 \|\| mSnapshot->isIgnored()) return;

		Rect clipRect(*mSnapshot->clipRect);
		clipRect.snapToPixelBoundaries();
		@@ -809,7 +813,7 @@ const Rect& OpenGLRenderer::getClipBounds() {
		}

		bool OpenGLRenderer::quickReject(float left, float top, float right, float bottom) {
		if (mSnapshot->invisible) {
		if (mSnapshot->isIgnored()) {
		return true;
		}

		@@ -988,7 +992,7 @@ void OpenGLRenderer::drawPatch(SkBitmap* bitmap, const int32_t* xDivs, const int

		void OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) {
		// TODO: Should do quickReject for each line
		if (mSnapshot->invisible) return;
		if (mSnapshot->isIgnored()) return;

		const bool isAA = paint->isAntiAlias();
		const float strokeWidth = paint->getStrokeWidth() * 0.5f;
		@@ -1112,7 +1116,7 @@ void OpenGLRenderer::drawLines(float* points, int count, SkPaint* paint) {

		void OpenGLRenderer::drawColor(int color, SkXfermode::Mode mode) {
		// No need to check against the clip, we fill the clip region
		if (mSnapshot->invisible) return;
		if (mSnapshot->isIgnored()) return;

		Rect& clip(*mSnapshot->clipRect);
		clip.snapToPixelBoundaries();
		@@ -1150,7 +1154,7 @@ void OpenGLRenderer::drawText(const char* text, int bytesCount, int count,
		if (text == NULL \|\| count == 0 \|\| (paint->getAlpha() == 0 && paint->getXfermode() == NULL)) {
		return;
		}
		if (mSnapshot->invisible) return;
		if (mSnapshot->isIgnored()) return;

		paint->setAntiAlias(true);

		@@ -1253,7 +1257,7 @@ void OpenGLRenderer::drawText(const char* text, int bytesCount, int count,
		}

		void OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) {
		if (mSnapshot->invisible) return;
		if (mSnapshot->isIgnored()) return;

		GLuint textureUnit = 0;
		glActiveTexture(gTextureUnits[textureUnit]);

libs/hwui/Snapshot.h

+14 −3

Original line number	Diff line number	Diff line
		@@ -43,7 +43,7 @@ namespace uirenderer {
		*/
		class Snapshot: public LightRefBase<Snapshot> {
		public:
		Snapshot(): flags(0), previous(NULL), layer(NULL), fbo(0), invisible(false) {
		Snapshot(): flags(0), previous(NULL), layer(NULL), fbo(0), invisible(false), empty(false) {
		transform = &mTransformRoot;
		clipRect = &mClipRectRoot;
		region = NULL;
		@@ -55,7 +55,7 @@ public:
		*/
		Snapshot(const sp<Snapshot>& s, int saveFlags):
		flags(0), previous(s), layer(NULL), fbo(s->fbo),
		invisible(s->invisible), viewport(s->viewport), height(s->height) {
		invisible(s->invisible), empty(false), viewport(s->viewport), height(s->height) {
		if (saveFlags & SkCanvas::kMatrix_SaveFlag) {
		mTransformRoot.load(*s->transform);
		transform = &mTransformRoot;
		@@ -203,6 +203,10 @@ public:
		flags \|= Snapshot::kFlagClipSet \| Snapshot::kFlagDirtyLocalClip;
		}

		bool isIgnored() const {
		return invisible \|\| empty;
		}

		/**
		* Dirty flags.
		*/
		@@ -225,10 +229,17 @@ public:

		/**
		* Indicates that this snapshot is invisible and nothing should be drawn
		* inside it.
		* inside it. This flag is set only when the layer clips drawing to its
		* bounds and is passed to subsequent snapshots.
		*/
		bool invisible;

		/**
		* If set to true, the layer will not be composited. This is similar to
		* invisible but this flag is not passed to subsequent snapshots.
		*/
		bool empty;

		/**
		* Current viewport.
		*/