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 #define LOG_TAG "SurfaceSession"
18
19 #include "JNIHelp.h"
20
21 #include <android_runtime/AndroidRuntime.h>
22 #include <android_runtime/android_view_SurfaceSession.h>
23 #include <utils/Log.h>
24 #include <utils/RefBase.h>
25
26 #include <gui/SurfaceComposerClient.h>
27
28 namespace android {
29
30 static struct {
31 jfieldID mNativeClient;
32 } gSurfaceSessionClassInfo;
33
34
android_view_SurfaceSession_getClient(JNIEnv * env,jobject surfaceSessionObj)35 sp<SurfaceComposerClient> android_view_SurfaceSession_getClient(
36 JNIEnv* env, jobject surfaceSessionObj) {
37 return reinterpret_cast<SurfaceComposerClient*>(
38 env->GetLongField(surfaceSessionObj, gSurfaceSessionClassInfo.mNativeClient));
39 }
40
41
nativeCreate(JNIEnv * env,jclass clazz)42 static jlong nativeCreate(JNIEnv* env, jclass clazz) {
43 SurfaceComposerClient* client = new SurfaceComposerClient();
44 client->incStrong((void*)nativeCreate);
45 return reinterpret_cast<jlong>(client);
46 }
47
nativeDestroy(JNIEnv * env,jclass clazz,jlong ptr)48 static void nativeDestroy(JNIEnv* env, jclass clazz, jlong ptr) {
49 SurfaceComposerClient* client = reinterpret_cast<SurfaceComposerClient*>(ptr);
50 client->decStrong((void*)nativeCreate);
51 }
52
nativeKill(JNIEnv * env,jclass clazz,jlong ptr)53 static void nativeKill(JNIEnv* env, jclass clazz, jlong ptr) {
54 SurfaceComposerClient* client = reinterpret_cast<SurfaceComposerClient*>(ptr);
55 client->dispose();
56 }
57
58
59 static const JNINativeMethod gMethods[] = {
60 /* name, signature, funcPtr */
61 { "nativeCreate", "()J",
62 (void*)nativeCreate },
63 { "nativeDestroy", "(J)V",
64 (void*)nativeDestroy },
65 { "nativeKill", "(J)V",
66 (void*)nativeKill }
67 };
68
register_android_view_SurfaceSession(JNIEnv * env)69 int register_android_view_SurfaceSession(JNIEnv* env) {
70 int res = jniRegisterNativeMethods(env, "android/view/SurfaceSession",
71 gMethods, NELEM(gMethods));
72 LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods.");
73
74 jclass clazz = env->FindClass("android/view/SurfaceSession");
75 gSurfaceSessionClassInfo.mNativeClient = env->GetFieldID(clazz, "mNativeClient", "J");
76 return 0;
77 }
78
79 } // namespace android
80