1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "jni_egl_fence.h" 18 19 #include <cutils/log.h> 20 #include <EGL/egl.h> 21 #include <EGL/eglext.h> 22 23 void 24 Java_com_android_gallery3d_photoeditor_FilterStack_nativeEglSetFenceAndWait(JNIEnv* env, 25 jobject thiz) { 26 EGLDisplay display = eglGetCurrentDisplay(); 27 28 // Create a egl fence and wait for egl to return it. 29 // Additional reference on egl fence sync can be found in: 30 // http://www.khronos.org/registry/vg/extensions/KHR/EGL_KHR_fence_sync.txt 31 EGLSyncKHR fence = eglCreateSyncKHR(display, EGL_SYNC_FENCE_KHR, NULL); 32 if (fence == EGL_NO_SYNC_KHR) { 33 return; 34 } 35 36 EGLint result = eglClientWaitSyncKHR(display, 37 fence, 38 EGL_SYNC_FLUSH_COMMANDS_BIT_KHR, 39 EGL_FOREVER_KHR); 40 if (result == EGL_FALSE) { 41 ALOGE("EGL FENCE: error waiting for fence: %#x", eglGetError()); 42 } 43 eglDestroySyncKHR(display, fence); 44 } 45
