android_view_ThreadedRenderer.cpp revision 4f02bf4eef6af47f35c70c4dda5b7b9523d89ca0 
1/*
2 * Copyright (C) 2010 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 "ThreadedRenderer"
18
19#include "jni.h"
20#include <nativehelper/JNIHelp.h>
21#include <android_runtime/AndroidRuntime.h>
22
23#include <utils/StrongPointer.h>
24#include <android_runtime/android_view_Surface.h>
25#include <system/window.h>
26
27#include <renderthread/RenderProxy.h>
28#include <renderthread/RenderTask.h>
29#include <renderthread/RenderThread.h>
30
31namespace android {
32
33#ifdef USE_OPENGL_RENDERER
34
35using namespace android::uirenderer;
36using namespace android::uirenderer::renderthread;
37
38static jmethodID gRunnableMethod;
39
40class JavaTask : public RenderTask {
41public:
42    JavaTask(JNIEnv* env, jobject jrunnable) {
43        env->GetJavaVM(&mVm);
44        mRunnable = env->NewGlobalRef(jrunnable);
45    }
46
47    virtual void run() {
48        env()->CallVoidMethod(mRunnable, gRunnableMethod);
49        env()->DeleteGlobalRef(mRunnable);
50        delete this;
51    };
52
53private:
54    JNIEnv* env() {
55        JNIEnv* env;
56        if (mVm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
57            return 0;
58        }
59        return env;
60    }
61
62    JavaVM* mVm;
63    jobject mRunnable;
64};
65
66static void android_view_ThreadedRenderer_postToRenderThread(JNIEnv* env, jobject clazz,
67        jobject jrunnable) {
68    RenderTask* task = new JavaTask(env, jrunnable);
69    RenderThread::getInstance().queue(task);
70}
71
72static jlong android_view_ThreadedRenderer_createProxy(JNIEnv* env, jobject clazz,
73        jboolean translucent) {
74    return (jlong) new RenderProxy(translucent);
75}
76
77static void android_view_ThreadedRenderer_deleteProxy(JNIEnv* env, jobject clazz,
78        jlong proxyPtr) {
79    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
80    delete proxy;
81}
82
83static jboolean android_view_ThreadedRenderer_initialize(JNIEnv* env, jobject clazz,
84        jlong proxyPtr, jobject jsurface) {
85    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
86    sp<ANativeWindow> window = android_view_Surface_getNativeWindow(env, jsurface);
87    return proxy->initialize(window.get());
88}
89
90static void android_view_ThreadedRenderer_updateSurface(JNIEnv* env, jobject clazz,
91        jlong proxyPtr, jobject jsurface) {
92    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
93    sp<ANativeWindow> window;
94    if (jsurface) {
95        window = android_view_Surface_getNativeWindow(env, jsurface);
96    }
97    proxy->updateSurface(window.get());
98}
99
100static void android_view_ThreadedRenderer_setup(JNIEnv* env, jobject clazz,
101        jlong proxyPtr, jint width, jint height) {
102    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
103    proxy->setup(width, height);
104}
105
106static void android_view_ThreadedRenderer_drawDisplayList(JNIEnv* env, jobject clazz,
107        jlong proxyPtr, jlong displayListPtr, jint dirtyLeft, jint dirtyTop,
108        jint dirtyRight, jint dirtyBottom) {
109    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
110    DisplayList* displayList = reinterpret_cast<DisplayList*>( displayListPtr);
111    proxy->drawDisplayList(displayList, dirtyLeft, dirtyTop, dirtyRight, dirtyBottom);
112}
113
114static void android_view_ThreadedRenderer_destroyCanvas(JNIEnv* env, jobject clazz,
115        jlong proxyPtr) {
116    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
117    proxy->destroyCanvas();
118}
119
120static void android_view_ThreadedRenderer_attachFunctor(JNIEnv* env, jobject clazz,
121        jlong proxyPtr, jlong functorPtr) {
122    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
123    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
124    proxy->attachFunctor(functor);
125}
126
127static void android_view_ThreadedRenderer_detachFunctor(JNIEnv* env, jobject clazz,
128        jlong proxyPtr, jlong functorPtr) {
129    RenderProxy* proxy = reinterpret_cast<RenderProxy*>( proxyPtr);
130    Functor* functor = reinterpret_cast<Functor*>(functorPtr);
131    proxy->detachFunctor(functor);
132}
133
134#endif
135
136// ----------------------------------------------------------------------------
137// JNI Glue
138// ----------------------------------------------------------------------------
139
140const char* const kClassPathName = "android/view/ThreadedRenderer";
141
142static JNINativeMethod gMethods[] = {
143#ifdef USE_OPENGL_RENDERER
144    { "postToRenderThread", "(Ljava/lang/Runnable;)V",   (void*) android_view_ThreadedRenderer_postToRenderThread },
145    { "nCreateProxy", "(Z)J", (void*) android_view_ThreadedRenderer_createProxy },
146    { "nDeleteProxy", "(J)V", (void*) android_view_ThreadedRenderer_deleteProxy },
147    { "nInitialize", "(JLandroid/view/Surface;)Z", (void*) android_view_ThreadedRenderer_initialize },
148    { "nUpdateSurface", "(JLandroid/view/Surface;)V", (void*) android_view_ThreadedRenderer_updateSurface },
149    { "nSetup", "(JII)V", (void*) android_view_ThreadedRenderer_setup },
150    { "nDrawDisplayList", "(JJIIII)V", (void*) android_view_ThreadedRenderer_drawDisplayList},
151    { "nDestroyCanvas", "(J)V", (void*) android_view_ThreadedRenderer_destroyCanvas},
152    { "nAttachFunctor", "(JJ)V", (void*) android_view_ThreadedRenderer_attachFunctor},
153    { "nDetachFunctor", "(JJ)V", (void*) android_view_ThreadedRenderer_detachFunctor},
154#endif
155};
156
157int register_android_view_ThreadedRenderer(JNIEnv* env) {
158#ifdef USE_OPENGL_RENDERER
159    jclass cls = env->FindClass("java/lang/Runnable");
160    gRunnableMethod = env->GetMethodID(cls, "run", "()V");
161    env->DeleteLocalRef(cls);
162#endif
163    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
164}
165
166}; // namespace android
167