commit e2b9938b7d02c420434fdea77aaf7cdb832d4460
author Dongya Jiang <jiangdongya@coolpad.com> Mon Feb 28 21:35:57 2022 +0800
committer John Reck <jreck@google.com> Fri May 26 17:16:18 2023 -0400
tree 0c534d17854ddfe499bc405bc3c1e7137884f6aa
parent 5e3ac00f0861fb8b5ed03562765f6bd0d050a8ef

Add setBackdropRenderEffect for View and RenderNode.

support visual effects for backdrop contents of a View or RenderNode.

Test: added unit test & hwui_unit passes
Test: added BackdropBlurActivity in HwAccelerationTest, build & run it

Signed-off-by: Dongya Jiang <jiangdongya@coolpad.com>
Change-Id: If1ac1b8aee53667f175e8fa80ecfc7bdfa28173d

libs/hwui/pipeline/skia/RenderNodeDrawable.cpp

diff --git a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
index da4f66d..9d72c23 100644
--- a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
+++ b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
@@ -362,7 +362,7 @@
 }
 
 void RenderNodeDrawable::setViewProperties(const RenderProperties& properties, SkCanvas* canvas,
-                                           float* alphaMultiplier) {
+                                           float* alphaMultiplier, bool ignoreLayer) {
     if (properties.getLeft() != 0 || properties.getTop() != 0) {
         canvas->translate(properties.getLeft(), properties.getTop());
     }
@@ -378,7 +378,8 @@
             canvas->concat(*properties.getTransformMatrix());
         }
     }
-    if (Properties::getStretchEffectBehavior() == StretchEffectBehavior::UniformScale) {
+    if (Properties::getStretchEffectBehavior() == StretchEffectBehavior::UniformScale &&
+        !ignoreLayer) {
         const StretchEffect& stretch = properties.layerProperties().getStretchEffect();
         if (!stretch.isEmpty()) {
             canvas->concat(
@@ -388,10 +389,10 @@
     const bool isLayer = properties.effectiveLayerType() != LayerType::None;
     int clipFlags = properties.getClippingFlags();
     if (properties.getAlpha() < 1) {
-        if (isLayer) {
+        if (isLayer && !ignoreLayer) {
             clipFlags &= ~CLIP_TO_BOUNDS;  // bounds clipping done by layer
         }
-        if (CC_LIKELY(isLayer || !properties.getHasOverlappingRendering())) {
+        if (CC_LIKELY(isLayer || !properties.getHasOverlappingRendering()) || ignoreLayer) {
             *alphaMultiplier = properties.getAlpha();
         } else {
             // savelayer needed to create an offscreen buffer