From 2db76167b17262aa3e341cbc85c949d119a14aa6 Mon Sep 17 00:00:00 2001
From: Mathias Agopian <mathias@google.com>
Date: Mon, 11 Oct 2010 17:56:14 -0700
Subject: [PATCH] propagate RS context priority to EGLContext when possible. DO
 NOT MERGE.

Change-Id: Ic9fa5c71324c629ba4cbb41ee4a9e4549810d05e
---
 libs/rs/Android.mk    |  3 +++
 libs/rs/rsContext.cpp | 14 +++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/libs/rs/Android.mk b/libs/rs/Android.mk
index 98464a08bf411..6f2cd075f72ee 100644
--- a/libs/rs/Android.mk
+++ b/libs/rs/Android.mk
@@ -102,6 +102,9 @@ LOCAL_SRC_FILES:= \
 	rsType.cpp \
 	rsVertexArray.cpp
 
+ifeq ($(TARGET_BOARD_PLATFORM), s5pc110)
+	LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY
+endif
 
 LOCAL_SHARED_LIBRARIES += libcutils libutils libEGL libGLESv1_CM libGLESv2 libui libacc
 LOCAL_LDLIBS := -lpthread -ldl
diff --git a/libs/rs/rsContext.cpp b/libs/rs/rsContext.cpp
index 596f533f988c0..92c66193530f4 100644
--- a/libs/rs/rsContext.cpp
+++ b/libs/rs/rsContext.cpp
@@ -26,6 +26,7 @@
 
 #include <cutils/properties.h>
 
+#include <EGL/eglext.h>
 #include <GLES/gl.h>
 #include <GLES/glext.h>
 #include <GLES2/gl2.h>
@@ -58,7 +59,18 @@ void Context::initEGL(bool useGL2)
     mEGL.mNumConfigs = -1;
     EGLint configAttribs[128];
     EGLint *configAttribsPtr = configAttribs;
-    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
+    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2,
+            EGL_NONE, GL_NONE, EGL_NONE };
+
+#ifdef HAS_CONTEXT_PRIORITY
+#ifdef EGL_IMG_context_priority
+#warning "using EGL_IMG_context_priority"
+    if (mThreadPriority > 0) {
+        context_attribs2[2] = EGL_CONTEXT_PRIORITY_LEVEL_IMG;
+        context_attribs2[3] = EGL_CONTEXT_PRIORITY_LOW_IMG;
+    }
+#endif
+#endif
 
     memset(configAttribs, 0, sizeof(configAttribs));