commit 4d527226fd2dbca30798b25e6c5cf50288ffd322
author John Reck <jreck@google.com> Wed Mar 13 16:25:20 2019 -0700
committer John Reck <jreck@google.com> Thu Apr 04 18:03:35 2019 +0000
tree 565315067642d9b739fafb0a83457c0566447681
parent dd07ae579c291a2b6ffe09bd576fd908eb9e5ddd

Add back render-ahead support

Currently only supported in the EGL path.
Vulkan support Coming Soon

Bug: 127822449
Test: trace of hwuimacro
Change-Id: Iac2b039e11d964aab5b8ca1bdf2a5430b187e2ea

libs/hwui/Properties.cpp

diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index 046ffc4..9b1f259 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -67,6 +67,7 @@
 bool Properties::isolatedProcess = false;
 
 int Properties::contextPriority = 0;
+int Properties::defaultRenderAhead = 0;
 
 static int property_get_int(const char* key, int defaultValue) {
     char buf[PROPERTY_VALUE_MAX] = {
@@ -129,6 +130,13 @@
 
     enableForceDarkSupport = property_get_bool(PROPERTY_ENABLE_FORCE_DARK, true);
 
+    defaultRenderAhead = std::max(0, std::min(2, property_get_int(PROPERTY_RENDERAHEAD,
+            render_ahead().value_or(0))));
+
+    if (defaultRenderAhead && sRenderPipelineType == RenderPipelineType::SkiaVulkan) {
+        ALOGW("hwui.render_ahead of %d ignored because pipeline is skiavk", defaultRenderAhead);
+    }
+
     return (prevDebugLayersUpdates != debugLayersUpdates) || (prevDebugOverdraw != debugOverdraw);
 }