Add android.opengl.EGLExt class for EGL extensions

Add the ES-relevant constants from the EGL_KHR_create_context
extension. These allow apps to check which EGLConfigs (if any) support
ES3 contexts. Otherwise, the app has to create a context with an
EGLConfig and then check whether it is an ES2 or ES3 context.

Also move eglSetPresentationTimeANDROID from EGL14 to EGLExt, since it's an
extension function. It's new in API 18.

Bug: 8678160
Change-Id: I3cba6e59ebb0a3a4c4012aa54a36b940c288bcec

2 files changed, 162 insertions, 17 deletions

diff --git a/core/jni/android_opengl_EGL14.cpp b/core/jni/android_opengl_EGL14.cpp
index ac4bc1d..664af07 100644
--- a/core/jni/android_opengl_EGL14.cpp
+++ b/core/jni/android_opengl_EGL14.cpp
@@ -1202,22 +1202,6 @@ android_eglCopyBuffers
     return (EGLBoolean) 0;
 }
 
-/* EGLBoolean eglPresentationTimeANDROID ( EGLDisplay dpy, EGLSurface sur, EGLnsecsANDROID time ) */
-static jboolean
-android_eglPresentationTimeANDROID
-  (JNIEnv *_env, jobject _this, jobject dpy, jobject sur, jlong time) {
-    EGLBoolean _returnValue = (EGLBoolean) 0;
-    EGLDisplay dpy_native = (EGLDisplay) fromEGLHandle(_env, egldisplayGetHandleID, dpy);
-    EGLSurface sur_native = (EGLSurface) fromEGLHandle(_env, eglsurfaceGetHandleID, sur);
-
-    _returnValue = eglPresentationTimeANDROID(
-        (EGLDisplay)dpy_native,
-        (EGLSurface)sur_native,
-        (EGLnsecsANDROID)time
-    );
-    return _returnValue;
-}
-
 static const char *classPathName = "android/opengl/EGL14";
 
 static JNINativeMethod methods[] = {
@@ -1256,7 +1240,6 @@ static JNINativeMethod methods[] = {
 {"eglWaitNative", "(I)Z", (void *) android_eglWaitNative },
 {"eglSwapBuffers", "(Landroid/opengl/EGLDisplay;Landroid/opengl/EGLSurface;)Z", (void *) android_eglSwapBuffers },
 {"eglCopyBuffers", "(Landroid/opengl/EGLDisplay;Landroid/opengl/EGLSurface;I)Z", (void *) android_eglCopyBuffers },
-{"eglPresentationTimeANDROID", "(Landroid/opengl/EGLDisplay;Landroid/opengl/EGLSurface;J)Z", (void *) android_eglPresentationTimeANDROID },
 };
 
 int register_android_opengl_jni_EGL14(JNIEnv *_env)
diff --git a/core/jni/android_opengl_EGLExt.cpp b/core/jni/android_opengl_EGLExt.cpp
new file mode 100644
index 0000000..5179ddc
--- /dev/null
+++ b/core/jni/android_opengl_EGLExt.cpp
@@ -0,0 +1,162 @@
+/*
+** Copyright 2013, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+// This source file is automatically generated
+
+#include "jni.h"
+#include "JNIHelp.h"
+#include <android_runtime/AndroidRuntime.h>
+#include <android_runtime/android_view_Surface.h>
+#include <android_runtime/android_graphics_SurfaceTexture.h>
+#include <utils/misc.h>
+
+#include <assert.h>
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
+#include <gui/Surface.h>
+#include <gui/GLConsumer.h>
+#include <gui/Surface.h>
+
+#include <ui/ANativeObjectBase.h>
+
+static int initialized = 0;
+
+static jclass egldisplayClass;
+static jclass eglcontextClass;
+static jclass eglsurfaceClass;
+static jclass eglconfigClass;
+
+static jmethodID egldisplayGetHandleID;
+static jmethodID eglcontextGetHandleID;
+static jmethodID eglsurfaceGetHandleID;
+static jmethodID eglconfigGetHandleID;
+
+static jmethodID egldisplayConstructor;
+static jmethodID eglcontextConstructor;
+static jmethodID eglsurfaceConstructor;
+static jmethodID eglconfigConstructor;
+
+static jobject eglNoContextObject;
+static jobject eglNoDisplayObject;
+static jobject eglNoSurfaceObject;
+
+
+
+/* Cache method IDs each time the class is loaded. */
+
+static void
+nativeClassInit(JNIEnv *_env, jclass glImplClass)
+{
+    jclass egldisplayClassLocal = _env->FindClass("android/opengl/EGLDisplay");
+    egldisplayClass = (jclass) _env->NewGlobalRef(egldisplayClassLocal);
+    jclass eglcontextClassLocal = _env->FindClass("android/opengl/EGLContext");
+    eglcontextClass = (jclass) _env->NewGlobalRef(eglcontextClassLocal);
+    jclass eglsurfaceClassLocal = _env->FindClass("android/opengl/EGLSurface");
+    eglsurfaceClass = (jclass) _env->NewGlobalRef(eglsurfaceClassLocal);
+    jclass eglconfigClassLocal = _env->FindClass("android/opengl/EGLConfig");
+    eglconfigClass = (jclass) _env->NewGlobalRef(eglconfigClassLocal);
+
+    egldisplayGetHandleID = _env->GetMethodID(egldisplayClass, "getHandle", "()I");
+    eglcontextGetHandleID = _env->GetMethodID(eglcontextClass, "getHandle", "()I");
+    eglsurfaceGetHandleID = _env->GetMethodID(eglsurfaceClass, "getHandle", "()I");
+    eglconfigGetHandleID = _env->GetMethodID(eglconfigClass, "getHandle", "()I");
+
+
+    egldisplayConstructor = _env->GetMethodID(egldisplayClass, "<init>", "(I)V");
+    eglcontextConstructor = _env->GetMethodID(eglcontextClass, "<init>", "(I)V");
+    eglsurfaceConstructor = _env->GetMethodID(eglsurfaceClass, "<init>", "(I)V");
+    eglconfigConstructor = _env->GetMethodID(eglconfigClass, "<init>", "(I)V");
+
+    jobject localeglNoContextObject = _env->NewObject(eglcontextClass, eglcontextConstructor, (jint)EGL_NO_CONTEXT);
+    eglNoContextObject = _env->NewGlobalRef(localeglNoContextObject);
+    jobject localeglNoDisplayObject = _env->NewObject(egldisplayClass, egldisplayConstructor, (jint)EGL_NO_DISPLAY);
+    eglNoDisplayObject = _env->NewGlobalRef(localeglNoDisplayObject);
+    jobject localeglNoSurfaceObject = _env->NewObject(eglsurfaceClass, eglsurfaceConstructor, (jint)EGL_NO_SURFACE);
+    eglNoSurfaceObject = _env->NewGlobalRef(localeglNoSurfaceObject);
+
+
+    jclass eglClass = _env->FindClass("android/opengl/EGL14");
+    jfieldID noContextFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_CONTEXT", "Landroid/opengl/EGLContext;");
+    _env->SetStaticObjectField(eglClass, noContextFieldID, eglNoContextObject);
+
+    jfieldID noDisplayFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_DISPLAY", "Landroid/opengl/EGLDisplay;");
+    _env->SetStaticObjectField(eglClass, noDisplayFieldID, eglNoDisplayObject);
+
+    jfieldID noSurfaceFieldID = _env->GetStaticFieldID(eglClass, "EGL_NO_SURFACE", "Landroid/opengl/EGLSurface;");
+    _env->SetStaticObjectField(eglClass, noSurfaceFieldID, eglNoSurfaceObject);
+}
+
+static void *
+fromEGLHandle(JNIEnv *_env, jmethodID mid, jobject obj) {
+    if (obj == NULL){
+        jniThrowException(_env, "java/lang/IllegalArgumentException",
+                          "Object is set to null.");
+    }
+
+    return (void*) (_env->CallIntMethod(obj, mid));
+}
+
+static jobject
+toEGLHandle(JNIEnv *_env, jclass cls, jmethodID con, void * handle) {
+    if (cls == eglcontextClass &&
+       (EGLContext)handle == EGL_NO_CONTEXT) {
+           return eglNoContextObject;
+    }
+
+    if (cls == egldisplayClass &&
+       (EGLDisplay)handle == EGL_NO_DISPLAY) {
+           return eglNoDisplayObject;
+    }
+
+    if (cls == eglsurfaceClass &&
+       (EGLSurface)handle == EGL_NO_SURFACE) {
+           return eglNoSurfaceObject;
+    }
+
+    return _env->NewObject(cls, con, (jint)handle);
+}
+
+// --------------------------------------------------------------------------
+/* EGLBoolean eglPresentationTimeANDROID ( EGLDisplay dpy, EGLSurface sur, EGLnsecsANDROID time ) */
+static jboolean
+android_eglPresentationTimeANDROID
+  (JNIEnv *_env, jobject _this, jobject dpy, jobject sur, jlong time) {
+    EGLBoolean _returnValue = (EGLBoolean) 0;
+    EGLDisplay dpy_native = (EGLDisplay) fromEGLHandle(_env, egldisplayGetHandleID, dpy);
+    EGLSurface sur_native = (EGLSurface) fromEGLHandle(_env, eglsurfaceGetHandleID, sur);
+
+    _returnValue = eglPresentationTimeANDROID(
+        (EGLDisplay)dpy_native,
+        (EGLSurface)sur_native,
+        (EGLnsecsANDROID)time
+    );
+    return (jboolean)_returnValue;
+}
+
+static const char *classPathName = "android/opengl/EGLExt";
+
+static JNINativeMethod methods[] = {
+{"_nativeClassInit", "()V", (void*)nativeClassInit },
+{"eglPresentationTimeANDROID", "(Landroid/opengl/EGLDisplay;Landroid/opengl/EGLSurface;J)Z", (void *) android_eglPresentationTimeANDROID },
+};
+
+int register_android_opengl_jni_EGLExt(JNIEnv *_env)
+{
+    int err;
+    err = android::AndroidRuntime::registerNativeMethods(_env, classPathName, methods, NELEM(methods));
+    return err;
+}