Change how memory policy is configured

Should be a mostly no-op but adds a handful of new options

* Adds a 'MemoryPolicy' to mostly consolidate memory settings
* Moves trim handling into HWUI proper
* Adds settings for UI hidden & context destruction that's not
  dependent on TRIM signals
* Treats persistent process the same as system_server
* Tweaks HardwareBitmapUploader timeout to reduce churn

Bug: 245565051
Test: builds & boots

Change-Id: I1f1b3db884ef7fa45ff2556436464a99440b998e

1 files changed, 13 insertions, 0 deletions

diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 2f8c67903a8b..96a517629eaa 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -193,6 +193,8 @@ enum DebugLevel {
  */
 #define PROPERTY_DRAWING_ENABLED "debug.hwui.drawing_enabled"
 
+#define PROPERTY_MEMORY_POLICY "debug.hwui.app_memory_policy"
+
 ///////////////////////////////////////////////////////////////////////////////
 // Misc
 ///////////////////////////////////////////////////////////////////////////////
@@ -292,16 +294,27 @@ public:
 
     static bool enableWebViewOverlays;
 
+    static bool isHighEndGfx;
+    static bool isLowRam;
+    static bool isSystemOrPersistent;
+
     static StretchEffectBehavior getStretchEffectBehavior() {
         return stretchEffectBehavior;
     }
 
     static void setIsHighEndGfx(bool isHighEndGfx) {
+        Properties::isHighEndGfx = isHighEndGfx;
         stretchEffectBehavior = isHighEndGfx ?
             StretchEffectBehavior::ShaderHWUI :
             StretchEffectBehavior::UniformScale;
     }
 
+    static void setIsLowRam(bool isLowRam) { Properties::isLowRam = isLowRam; }
+
+    static void setIsSystemOrPersistent(bool isSystemOrPersistent) {
+        Properties::isSystemOrPersistent = isSystemOrPersistent;
+    }
+
     /**
      * Used for testing. Typical configuration of stretch behavior is done
      * through setIsHighEndGfx