| /*gst_peer.c - Common utility functions for the native peer. |
| Copyright (C) 2007 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| #include <glib.h> |
| |
| #include <jni.h> |
| #include "jcl.h" |
| |
| #include "gst_peer.h" |
| |
| JNIEnv *gst_get_jenv (JavaVM *vm) |
| { |
| void *env = NULL; |
| |
| if ((*vm)->GetEnv(vm, &env, JNI_VERSION_1_2) != JNI_OK) |
| { |
| if ((*vm)->AttachCurrentThreadAsDaemon(vm, &env, NULL) < 0) |
| { |
| g_warning ("GstNativePipeline:- env not attached"); |
| return NULL; |
| } |
| } |
| |
| return (JNIEnv *) env; |
| } |
| |
| void * |
| get_object_from_pointer (JNIEnv *env, jobject pointer, jfieldID pointerDataFID) |
| { |
| void *_object = NULL; |
| |
| if (env == NULL) |
| return NULL; |
| |
| if ((*env)->IsSameObject(env, pointer, NULL) == JNI_TRUE) |
| return NULL; |
| |
| #if SIZEOF_VOID_P == 8 |
| _object = (void *) (*env)->GetLongField(env, pointer, pointerDataFID); |
| #else |
| # if SIZEOF_VOID_P == 4 |
| _object = (void *) (*env)->GetIntField(env, pointer, pointerDataFID); |
| # else |
| # error "Pointer size is not supported." |
| # endif /* SIZEOF_VOID_P == 4 */ |
| #endif /* SIZEOF_VOID_P == 8 */ |
| |
| return _object; |
| } |