Merge "Pass more ANGLE info from runtime" into pie-angle-preview-dev
diff --git a/core/java/android/os/GraphicsEnvironment.java b/core/java/android/os/GraphicsEnvironment.java
index f83acb6..54be639 100644
--- a/core/java/android/os/GraphicsEnvironment.java
+++ b/core/java/android/os/GraphicsEnvironment.java
@@ -45,6 +45,7 @@
     private static final String TAG = "GraphicsEnvironment";
     private static final String PROPERTY_GFX_DRIVER = "ro.gfx.driver.0";
     private static final String ANGLE_PACKAGE_NAME = "com.android.angle";
+    private static final String GLES_MODE_METADATA_KEY = "com.android.angle.GLES_MODE";
 
     private ClassLoader mClassLoader;
     private String mLayerPath;
@@ -123,7 +124,6 @@
                     }
                 }
             }
-
         }
 
         // Include the app's lib directory in all cases
@@ -133,7 +133,7 @@
     }
 
     /**
-     * Selectively enable ANGLE for applications
+     * Pass ANGLE details down to trigger enable logic
      */
     private static void setupAngle(Context context) {
 
@@ -143,39 +143,67 @@
 
         String packageName = context.getPackageName();
 
-        // Only provide an ANGLE namespace if the package name matches setting
+        boolean devOptIn = false;
         if ((angleEnabledApp != null && packageName != null)
                 && (!angleEnabledApp.isEmpty() && !packageName.isEmpty())
                 && angleEnabledApp.equals(packageName)) {
 
-            if (DEBUG) Log.v(TAG, "ANGLE enabled for " + packageName);
+            if (DEBUG) Log.v(TAG, packageName + " opted in for ANGLE via Developer Setting");
 
-            ApplicationInfo angleInfo;
-
-            try {
-                angleInfo = context.getPackageManager().getApplicationInfo(ANGLE_PACKAGE_NAME,
-                    PackageManager.MATCH_SYSTEM_ONLY);
-            } catch (PackageManager.NameNotFoundException e) {
-                Log.w(TAG, "ANGLE package '" + ANGLE_PACKAGE_NAME + "' not installed");
-                return;
-            }
-
-            String abi = chooseAbi(angleInfo);
-
-            // Build a path that includes installed native libs and APK
-            StringBuilder sb = new StringBuilder();
-            sb.append(angleInfo.nativeLibraryDir)
-                .append(File.pathSeparator)
-                .append(angleInfo.sourceDir)
-                .append("!/lib/")
-                .append(abi);
-            String paths = sb.toString();
-
-            if (DEBUG) Log.v(TAG, "ANGLE package libs: " + paths);
-
-            // Providing any path will trigger namespace creation
-            setAnglePath(paths);
+            devOptIn = true;
         }
+
+        ApplicationInfo appInfo;
+        try {
+            appInfo = context.getPackageManager().getApplicationInfo(packageName,
+                PackageManager.GET_META_DATA);
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.w(TAG, "Failed to get info about current application: " + packageName);
+            return;
+        }
+
+        String appPref = "dontcare";
+        final BaseBundle metadata = appInfo.metaData;
+        if (metadata != null) {
+            final String glesMode = metadata.getString(GLES_MODE_METADATA_KEY);
+            if (glesMode != null) {
+                if (glesMode.equals("angle")) {
+                    appPref = "angle";
+                    if (DEBUG) Log.v(TAG, packageName + " opted for ANGLE via AndroidManifest");
+                } else if (glesMode.equals("native")) {
+                    appPref = "native";
+                    if (DEBUG) Log.v(TAG, packageName + " opted for NATIVE via AndroidManifest");
+                } else {
+                    Log.w(TAG, "Unrecognized GLES_MODE (\"" + glesMode + "\") for " + packageName
+                               + ". Supported values are \"angle\" or \"native\"");
+                }
+            }
+        }
+
+        ApplicationInfo angleInfo;
+        try {
+            angleInfo = context.getPackageManager().getApplicationInfo(ANGLE_PACKAGE_NAME,
+                PackageManager.MATCH_SYSTEM_ONLY);
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.w(TAG, "ANGLE package '" + ANGLE_PACKAGE_NAME + "' not installed");
+            return;
+        }
+
+        String abi = chooseAbi(angleInfo);
+
+        // Build a path that includes installed native libs and APK
+        StringBuilder sb = new StringBuilder();
+        sb.append(angleInfo.nativeLibraryDir)
+            .append(File.pathSeparator)
+            .append(angleInfo.sourceDir)
+            .append("!/lib/")
+            .append(abi);
+        String paths = sb.toString();
+
+        if (DEBUG) Log.v(TAG, "ANGLE package libs: " + paths);
+
+        // Further opt-in logic is handled in native, so pass relevant info down
+        setAngleInfo(paths, packageName, appPref, devOptIn);
     }
 
     /**
@@ -266,5 +294,6 @@
     private static native void setLayerPaths(ClassLoader classLoader, String layerPaths);
     private static native void setDebugLayers(String layers);
     private static native void setDriverPath(String path);
-    private static native void setAnglePath(String path);
+    private static native void setAngleInfo(String path, String appPackage, String appPref,
+                                            boolean devOptIn);
 }
diff --git a/core/jni/android_os_GraphicsEnvironment.cpp b/core/jni/android_os_GraphicsEnvironment.cpp
index 9fb8e64..9372671 100644
--- a/core/jni/android_os_GraphicsEnvironment.cpp
+++ b/core/jni/android_os_GraphicsEnvironment.cpp
@@ -28,9 +28,13 @@
     android::GraphicsEnv::getInstance().setDriverPath(pathChars.c_str());
 }
 
-void setAnglePath(JNIEnv* env, jobject clazz, jstring path) {
+void setAngleInfo_native(JNIEnv* env, jobject clazz, jstring path, jstring appName,
+                         jstring appPref, jboolean devOptIn) {
     ScopedUtfChars pathChars(env, path);
-    android::GraphicsEnv::getInstance().setAnglePath(pathChars.c_str());
+    ScopedUtfChars appNameChars(env, appName);
+    ScopedUtfChars appPrefChars(env, appPref);
+    android::GraphicsEnv::getInstance().setAngleInfo(pathChars.c_str(), appNameChars.c_str(),
+            appPrefChars.c_str(), devOptIn);
 }
 
 void setLayerPaths_native(JNIEnv* env, jobject clazz, jobject classLoader, jstring layerPaths) {
@@ -48,7 +52,7 @@
 
 const JNINativeMethod g_methods[] = {
     { "setDriverPath", "(Ljava/lang/String;)V", reinterpret_cast<void*>(setDriverPath) },
-    { "setAnglePath", "(Ljava/lang/String;)V", reinterpret_cast<void*>(setAnglePath) },
+    { "setAngleInfo", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Z)V", reinterpret_cast<void*>(setAngleInfo_native) },
     { "setLayerPaths", "(Ljava/lang/ClassLoader;Ljava/lang/String;)V", reinterpret_cast<void*>(setLayerPaths_native) },
     { "setDebugLayers", "(Ljava/lang/String;)V", reinterpret_cast<void*>(setDebugLayers_native) },
 };