; // namespace android

bootanimation_main.cpp

/*
 * Copyright (C) 2007 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.
 */


#define LOG_TAG "BootAnimation"


#include


#include
#include
#include


#include
#include


#if defined(HAVE_PTHREADS)
# include
# include
#endif


#include "BootAnimation.h"


#include "unistd.h"


bool gUseBootVideo = false; 
bool gUseBootAdv = false;


using namespace android;


// ---------------------------------------------------------------------------


int main(int argc, char** argv)
{
#if defined(HAVE_PTHREADS)
    setpriority(PRIO_PROCESS, 0, ANDROID_PRIORITY_DISPLAY);
#endif


    char value[PROPERTY_VALUE_MAX];
/*
通过属性设置关闭开机动画
*/
    property_get("debug.sf.nobootanimation", value, "0");
    int noBootAnimation = atoi(value);
    ALOGI_IF(noBootAnimation,  "boot animation disabled");
    if (!noBootAnimation) {


/*
开启线程池
*/
        sp proc(ProcessState::self());
        ProcessState::self()->startThreadPool();
    /*
实例化开机动画对象
*/
        // create the boot animation object
        sp boot = new BootAnimation();


        //add video boot
        memset(value,0,sizeof(value));
        property_get("persist.service.bootvideo", value, "2");
        if(atoi(value)!=2)
           gUseBootVideo = (atoi(value) == 1 ? true : false);
        else{
           memset(value,0,sizeof(value));
           ALOGE("chenwh0 service.bootvideo=%d",atoi(value));
           property_get("service.bootvideo", value, "0");
           ALOGE("chenwh1 service.bootvideo=%d",atoi(value));
           gUseBootVideo = (atoi(value) == 1 ? true : false);
        }
        if(gUseBootVideo){
        //
                  // boot->setBootVolume();
           property_set("service.bootvideo", "2");


        }else {
           //add adv boot
            memset(value,0,sizeof(value));
            property_get("persist.service.bootadv", value, "2");
            if (atoi(value) != 2)
               gUseBootAdv = (atoi(value) == 1 ? true : false);
            else {
               memset(value, 0, sizeof(value));
               property_get("service.bootadv", value, "0");
               gUseBootAdv = (atoi(value) == 1 ? true : false);
            }
            if(gUseBootAdv){
                      // boot->setBootVolume();
               property_set("service.bootadv", "2");
            }
        } 


        //judge whether is shutdown bootanimation
        if(argc>1){
if(strcmp(argv[1],"-shutdown")==0){
boot->isShutdown(true);
}        
        }
        /*
将开机动画对象抛入线程池
ThreadPool继承binder类
startThreadPool()和joinThreadPool()的用法可以参考android的binder机制。
*/
        IPCThreadState::self()->joinThreadPool();


    }
    return 0;
}

BootAnimation.h

/*
 * Copyright (C) 2007 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.
 */


#ifndef ANDROID_BOOTANIMATION_H
#define ANDROID_BOOTANIMATION_H


#include
#include


#include
#include


#include
#include
#include
#include "AnimInfo.h"


class SkBitmap;


namespace android {


class Surface;
class SurfaceComposerClient;
class SurfaceControl;


// ---------------------------------------------------------------------------
/*
BootAnimation类继承了Thread类和IBinder::DeathRecipient类，几个override函数的作用如下：
onFirstRef()属于其父类RefBase，该函数在强引用sp新增引用计数時调用，就是当 有sp包装的类初始化的时候调用。
binderDied()，当对象死掉时或者其他情况导致该Binder发生结束了，就会回调binderDied()方法;
readyToRun()定义Thread执行前的初始化工作；
threadLoop()是每个线程类都要实现的，在这里定义thread的执行内容，这个函数如果返回true，则函数会不停地执行threadloop中的内容，如果这个函数返回false，则threadloop中的内容仅仅执行一次线程就会退出;
*/


class BootAnimation : public Thread, public IBinder::DeathRecipient
{
public:
                BootAnimation();
    virtual     ~BootAnimation();


    sp session() const;


//add for shutdown animation
bool mShutdown;
void isShutdown(bool shutdown);
void setBootVolume();
private:
    virtual bool        threadLoop();
    virtual status_t    readyToRun();
    virtual void        onFirstRef();
    virtual void        binderDied(const wp& who);


    struct Texture {
        GLint   w;
        GLint   h;
        GLuint  name;
    };


    struct Animation {
        struct Frame {
            String8 name;
            FileMap* map;
            char* pbuf;
            size_t psize;
            mutable GLuint tid;
            bool operator < (const Frame& rhs) const {
                return name < rhs.name;
            }
        };
        struct Part {
            int count;
            int pause;
            String8 path;
            SortedVector frames;
            bool playUntilComplete;
        };
        int fps;
        int width;
        int height;
        Vector parts;
    };


    status_t initTexture(Texture* texture, AssetManager& asset, const char* name);
    status_t initTexture(void* buffer, size_t len);
    bool android();
    bool movie();


    void checkExit();
    status_t CheckBootAnimation();


void initAnimInfo();
    bool videoEnd();
    bool launcherDisplayedNow();
    void checkOnePartExit();


    sp       mSession;
    AssetManager mAssets;
    Texture     mAndroid[2];
    int         mWidth;
    int         mHeight;
    EGLDisplay  mDisplay;
    EGLDisplay  mContext;
    EGLDisplay  mSurface;
    sp mFlingerSurfaceControl;
    sp mFlingerSurface;
    bool        mAndroidAnimation;
    ZipFileRO   mZip;
AnimInfo mAnimInfo;
    int  mRotation;
};


// ---------------------------------------------------------------------------


}; // namespace android


#endif // ANDROID_BOOTANIMATION_H

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