commit a5e9f1b0d17dc149f399cb0b477844f05193cdbb
author Peiyong Lin <lpy@google.com> Tue Nov 27 22:49:37 2018 -0800
committer Peiyong Lin <lpy@google.com> Tue Nov 27 22:49:37 2018 -0800
tree 8f85c4827485784b48178057657e61a8e599b81c
parent b49bb9150a4abc1561ea6b13b79a6ea86d6e81f2

[RenderEngine] Make use of EGL_KHR_surfaceless_context.

Per
https://www.khronos.org/registry/EGL/extensions/KHR/EGL_KHR_surfaceless_context.txt,
when EGL_KHR_surfaceless_context is present, we can make the context current
without specifying draw and read surface, thus we no longer need to create a
1x1 buffer surface.

BUG: 35315015
Test: Build, flash, boot.
Change-Id: Ia5f19cf0f9561bb660708b5a2ae0187593422210

libs/renderengine/gl/GLExtensions.cpp

diff --git a/libs/renderengine/gl/GLExtensions.cpp b/libs/renderengine/gl/GLExtensions.cpp
index 784693b..ce83dd5 100644
--- a/libs/renderengine/gl/GLExtensions.cpp
+++ b/libs/renderengine/gl/GLExtensions.cpp
@@ -112,6 +112,9 @@
     if (extensionSet.hasExtension("EGL_IMG_context_priority")) {
         mHasContextPriority = true;
     }
+    if (extensionSet.hasExtension("EGL_KHR_surfaceless_context")) {
+        mHasSurfacelessContext = true;
+    }
 }
 
 char const* GLExtensions::getEGLVersion() const {