summaryrefslogtreecommitdiffstats
path: root/core/java/android/view/View.java
diff options
context:
space:
mode:
Diffstat (limited to 'core/java/android/view/View.java')
-rw-r--r--core/java/android/view/View.java259
1 files changed, 135 insertions, 124 deletions
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 1d19c9b..b54d462 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -56,6 +56,7 @@ import android.os.Parcelable;
import android.os.RemoteException;
import android.os.SystemClock;
import android.os.SystemProperties;
+import android.os.Trace;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.FloatProperty;
@@ -14405,143 +14406,158 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
public void buildDrawingCache(boolean autoScale) {
if ((mPrivateFlags & PFLAG_DRAWING_CACHE_VALID) == 0 || (autoScale ?
mDrawingCache == null : mUnscaledDrawingCache == null)) {
- mCachingFailed = false;
+ if (Trace.isTagEnabled(Trace.TRACE_TAG_VIEW)) {
+ Trace.traceBegin(Trace.TRACE_TAG_VIEW,
+ "buildDrawingCache/SW Layer for " + getClass().getSimpleName());
+ }
+ try {
+ buildDrawingCacheImpl(autoScale);
+ } finally {
+ Trace.traceEnd(Trace.TRACE_TAG_VIEW);
+ }
+ }
+ }
- int width = mRight - mLeft;
- int height = mBottom - mTop;
+ /**
+ * private, internal implementation of buildDrawingCache, used to enable tracing
+ */
+ private void buildDrawingCacheImpl(boolean autoScale) {
+ mCachingFailed = false;
- final AttachInfo attachInfo = mAttachInfo;
- final boolean scalingRequired = attachInfo != null && attachInfo.mScalingRequired;
+ int width = mRight - mLeft;
+ int height = mBottom - mTop;
+
+ final AttachInfo attachInfo = mAttachInfo;
+ final boolean scalingRequired = attachInfo != null && attachInfo.mScalingRequired;
+
+ if (autoScale && scalingRequired) {
+ width = (int) ((width * attachInfo.mApplicationScale) + 0.5f);
+ height = (int) ((height * attachInfo.mApplicationScale) + 0.5f);
+ }
+
+ final int drawingCacheBackgroundColor = mDrawingCacheBackgroundColor;
+ final boolean opaque = drawingCacheBackgroundColor != 0 || isOpaque();
+ final boolean use32BitCache = attachInfo != null && attachInfo.mUse32BitDrawingCache;
- if (autoScale && scalingRequired) {
- width = (int) ((width * attachInfo.mApplicationScale) + 0.5f);
- height = (int) ((height * attachInfo.mApplicationScale) + 0.5f);
+ final long projectedBitmapSize = width * height * (opaque && !use32BitCache ? 2 : 4);
+ final long drawingCacheSize =
+ ViewConfiguration.get(mContext).getScaledMaximumDrawingCacheSize();
+ if (width <= 0 || height <= 0 || projectedBitmapSize > drawingCacheSize) {
+ if (width > 0 && height > 0) {
+ Log.w(VIEW_LOG_TAG, "View too large to fit into drawing cache, needs "
+ + projectedBitmapSize + " bytes, only "
+ + drawingCacheSize + " available");
}
+ destroyDrawingCache();
+ mCachingFailed = true;
+ return;
+ }
- final int drawingCacheBackgroundColor = mDrawingCacheBackgroundColor;
- final boolean opaque = drawingCacheBackgroundColor != 0 || isOpaque();
- final boolean use32BitCache = attachInfo != null && attachInfo.mUse32BitDrawingCache;
+ boolean clear = true;
+ Bitmap bitmap = autoScale ? mDrawingCache : mUnscaledDrawingCache;
- final long projectedBitmapSize = width * height * (opaque && !use32BitCache ? 2 : 4);
- final long drawingCacheSize =
- ViewConfiguration.get(mContext).getScaledMaximumDrawingCacheSize();
- if (width <= 0 || height <= 0 || projectedBitmapSize > drawingCacheSize) {
- if (width > 0 && height > 0) {
- Log.w(VIEW_LOG_TAG, "View too large to fit into drawing cache, needs "
- + projectedBitmapSize + " bytes, only "
- + drawingCacheSize + " available");
+ if (bitmap == null || bitmap.getWidth() != width || bitmap.getHeight() != height) {
+ Bitmap.Config quality;
+ if (!opaque) {
+ // Never pick ARGB_4444 because it looks awful
+ // Keep the DRAWING_CACHE_QUALITY_LOW flag just in case
+ switch (mViewFlags & DRAWING_CACHE_QUALITY_MASK) {
+ case DRAWING_CACHE_QUALITY_AUTO:
+ case DRAWING_CACHE_QUALITY_LOW:
+ case DRAWING_CACHE_QUALITY_HIGH:
+ default:
+ quality = Bitmap.Config.ARGB_8888;
+ break;
}
- destroyDrawingCache();
- mCachingFailed = true;
- return;
+ } else {
+ // Optimization for translucent windows
+ // If the window is translucent, use a 32 bits bitmap to benefit from memcpy()
+ quality = use32BitCache ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;
}
- boolean clear = true;
- Bitmap bitmap = autoScale ? mDrawingCache : mUnscaledDrawingCache;
+ // Try to cleanup memory
+ if (bitmap != null) bitmap.recycle();
- if (bitmap == null || bitmap.getWidth() != width || bitmap.getHeight() != height) {
- Bitmap.Config quality;
- if (!opaque) {
- // Never pick ARGB_4444 because it looks awful
- // Keep the DRAWING_CACHE_QUALITY_LOW flag just in case
- switch (mViewFlags & DRAWING_CACHE_QUALITY_MASK) {
- case DRAWING_CACHE_QUALITY_AUTO:
- case DRAWING_CACHE_QUALITY_LOW:
- case DRAWING_CACHE_QUALITY_HIGH:
- default:
- quality = Bitmap.Config.ARGB_8888;
- break;
- }
+ try {
+ bitmap = Bitmap.createBitmap(mResources.getDisplayMetrics(),
+ width, height, quality);
+ bitmap.setDensity(getResources().getDisplayMetrics().densityDpi);
+ if (autoScale) {
+ mDrawingCache = bitmap;
} else {
- // Optimization for translucent windows
- // If the window is translucent, use a 32 bits bitmap to benefit from memcpy()
- quality = use32BitCache ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565;
+ mUnscaledDrawingCache = bitmap;
}
-
- // Try to cleanup memory
- if (bitmap != null) bitmap.recycle();
-
- try {
- bitmap = Bitmap.createBitmap(mResources.getDisplayMetrics(),
- width, height, quality);
- bitmap.setDensity(getResources().getDisplayMetrics().densityDpi);
- if (autoScale) {
- mDrawingCache = bitmap;
- } else {
- mUnscaledDrawingCache = bitmap;
- }
- if (opaque && use32BitCache) bitmap.setHasAlpha(false);
- } catch (OutOfMemoryError e) {
- // If there is not enough memory to create the bitmap cache, just
- // ignore the issue as bitmap caches are not required to draw the
- // view hierarchy
- if (autoScale) {
- mDrawingCache = null;
- } else {
- mUnscaledDrawingCache = null;
- }
- mCachingFailed = true;
- return;
+ if (opaque && use32BitCache) bitmap.setHasAlpha(false);
+ } catch (OutOfMemoryError e) {
+ // If there is not enough memory to create the bitmap cache, just
+ // ignore the issue as bitmap caches are not required to draw the
+ // view hierarchy
+ if (autoScale) {
+ mDrawingCache = null;
+ } else {
+ mUnscaledDrawingCache = null;
}
-
- clear = drawingCacheBackgroundColor != 0;
+ mCachingFailed = true;
+ return;
}
- Canvas canvas;
- if (attachInfo != null) {
- canvas = attachInfo.mCanvas;
- if (canvas == null) {
- canvas = new Canvas();
- }
- canvas.setBitmap(bitmap);
- // Temporarily clobber the cached Canvas in case one of our children
- // is also using a drawing cache. Without this, the children would
- // steal the canvas by attaching their own bitmap to it and bad, bad
- // thing would happen (invisible views, corrupted drawings, etc.)
- attachInfo.mCanvas = null;
- } else {
- // This case should hopefully never or seldom happen
- canvas = new Canvas(bitmap);
- }
+ clear = drawingCacheBackgroundColor != 0;
+ }
- if (clear) {
- bitmap.eraseColor(drawingCacheBackgroundColor);
+ Canvas canvas;
+ if (attachInfo != null) {
+ canvas = attachInfo.mCanvas;
+ if (canvas == null) {
+ canvas = new Canvas();
}
+ canvas.setBitmap(bitmap);
+ // Temporarily clobber the cached Canvas in case one of our children
+ // is also using a drawing cache. Without this, the children would
+ // steal the canvas by attaching their own bitmap to it and bad, bad
+ // thing would happen (invisible views, corrupted drawings, etc.)
+ attachInfo.mCanvas = null;
+ } else {
+ // This case should hopefully never or seldom happen
+ canvas = new Canvas(bitmap);
+ }
- computeScroll();
- final int restoreCount = canvas.save();
+ if (clear) {
+ bitmap.eraseColor(drawingCacheBackgroundColor);
+ }
- if (autoScale && scalingRequired) {
- final float scale = attachInfo.mApplicationScale;
- canvas.scale(scale, scale);
- }
+ computeScroll();
+ final int restoreCount = canvas.save();
- canvas.translate(-mScrollX, -mScrollY);
+ if (autoScale && scalingRequired) {
+ final float scale = attachInfo.mApplicationScale;
+ canvas.scale(scale, scale);
+ }
- mPrivateFlags |= PFLAG_DRAWN;
- if (mAttachInfo == null || !mAttachInfo.mHardwareAccelerated ||
- mLayerType != LAYER_TYPE_NONE) {
- mPrivateFlags |= PFLAG_DRAWING_CACHE_VALID;
- }
+ canvas.translate(-mScrollX, -mScrollY);
- // Fast path for layouts with no backgrounds
- if ((mPrivateFlags & PFLAG_SKIP_DRAW) == PFLAG_SKIP_DRAW) {
- mPrivateFlags &= ~PFLAG_DIRTY_MASK;
- dispatchDraw(canvas);
- if (mOverlay != null && !mOverlay.isEmpty()) {
- mOverlay.getOverlayView().draw(canvas);
- }
- } else {
- draw(canvas);
+ mPrivateFlags |= PFLAG_DRAWN;
+ if (mAttachInfo == null || !mAttachInfo.mHardwareAccelerated ||
+ mLayerType != LAYER_TYPE_NONE) {
+ mPrivateFlags |= PFLAG_DRAWING_CACHE_VALID;
+ }
+
+ // Fast path for layouts with no backgrounds
+ if ((mPrivateFlags & PFLAG_SKIP_DRAW) == PFLAG_SKIP_DRAW) {
+ mPrivateFlags &= ~PFLAG_DIRTY_MASK;
+ dispatchDraw(canvas);
+ if (mOverlay != null && !mOverlay.isEmpty()) {
+ mOverlay.getOverlayView().draw(canvas);
}
+ } else {
+ draw(canvas);
+ }
- canvas.restoreToCount(restoreCount);
- canvas.setBitmap(null);
+ canvas.restoreToCount(restoreCount);
+ canvas.setBitmap(null);
- if (attachInfo != null) {
- // Restore the cached Canvas for our siblings
- attachInfo.mCanvas = canvas;
- }
+ if (attachInfo != null) {
+ // Restore the cached Canvas for our siblings
+ attachInfo.mCanvas = canvas;
}
}
@@ -15470,10 +15486,10 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
&& mAttachInfo.mHardwareRenderer != null) {
mBackgroundRenderNode = getDrawableRenderNode(background, mBackgroundRenderNode);
- final RenderNode displayList = mBackgroundRenderNode;
- if (displayList != null && displayList.isValid()) {
- setBackgroundDisplayListProperties(displayList);
- ((HardwareCanvas) canvas).drawRenderNode(displayList);
+ final RenderNode renderNode = mBackgroundRenderNode;
+ if (renderNode != null && renderNode.isValid()) {
+ setBackgroundRenderNodeProperties(renderNode);
+ ((HardwareCanvas) canvas).drawRenderNode(renderNode);
return;
}
}
@@ -15489,14 +15505,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
}
}
- /**
- * Set up background drawable display list properties.
- *
- * @param displayList Valid display list for the background drawable
- */
- private void setBackgroundDisplayListProperties(RenderNode displayList) {
- displayList.setTranslationX(mScrollX);
- displayList.setTranslationY(mScrollY);
+ private void setBackgroundRenderNodeProperties(RenderNode renderNode) {
+ renderNode.setTranslationX(mScrollX);
+ renderNode.setTranslationY(mScrollY);
}
/**
generated by cgit v1.1 at 2025-08-15 07:06:27 +0000