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      1 /*
      2  *  Copyright (c) 2013, The Linux Foundation. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *     * Redistributions of source code must retain the above copyright
      8  *       notice, this list of conditions and the following disclaimer.
      9  *     * Redistributions in binary form must reproduce the above
     10  *       copyright notice, this list of conditions and the following
     11  *       disclaimer in the documentation and/or other materials provided
     12  *       with the distribution.
     13  *     * Neither the name of The Linux Foundation nor the names of its
     14  *       contributors may be used to endorse or promote products derived
     15  *       from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR CLIENTS; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <hwc_qclient.h>
     31 #include <IQService.h>
     32 #include <hwc_utils.h>
     33 
     34 #define QCLIENT_DEBUG 0
     35 
     36 using namespace android;
     37 using namespace qService;
     38 
     39 namespace qClient {
     40 
     41 // ----------------------------------------------------------------------------
     42 QClient::QClient(hwc_context_t *ctx) : mHwcContext(ctx),
     43         mMPDeathNotifier(new MPDeathNotifier(ctx))
     44 {
     45     ALOGD_IF(QCLIENT_DEBUG, "QClient Constructor invoked");
     46 }
     47 
     48 QClient::~QClient()
     49 {
     50     ALOGD_IF(QCLIENT_DEBUG,"QClient Destructor invoked");
     51 }
     52 
     53 status_t QClient::notifyCallback(uint32_t msg, uint32_t value) {
     54     switch(msg) {
     55         case IQService::SECURING:
     56             securing(value);
     57             break;
     58         case IQService::UNSECURING:
     59             unsecuring(value);
     60             break;
     61         case IQService::SCREEN_REFRESH:
     62             return screenRefresh();
     63             break;
     64         default:
     65             return NO_ERROR;
     66     }
     67     return NO_ERROR;
     68 }
     69 
     70 void QClient::securing(uint32_t startEnd) {
     71     Locker::Autolock _sl(mHwcContext->mDrawLock);
     72     //The only way to make this class in this process subscribe to media
     73     //player's death.
     74     IMediaDeathNotifier::getMediaPlayerService();
     75 
     76     mHwcContext->mSecuring = startEnd;
     77     //We're done securing
     78     if(startEnd == IQService::END)
     79         mHwcContext->mSecureMode = true;
     80     if(mHwcContext->proc)
     81         mHwcContext->proc->invalidate(mHwcContext->proc);
     82 }
     83 
     84 void QClient::unsecuring(uint32_t startEnd) {
     85     Locker::Autolock _sl(mHwcContext->mDrawLock);
     86     mHwcContext->mSecuring = startEnd;
     87     //We're done unsecuring
     88     if(startEnd == IQService::END)
     89         mHwcContext->mSecureMode = false;
     90     if(mHwcContext->proc)
     91         mHwcContext->proc->invalidate(mHwcContext->proc);
     92 }
     93 
     94 void QClient::MPDeathNotifier::died() {
     95     Locker::Autolock _sl(mHwcContext->mDrawLock);
     96     ALOGD_IF(QCLIENT_DEBUG, "Media Player died");
     97     mHwcContext->mSecuring = false;
     98     mHwcContext->mSecureMode = false;
     99     if(mHwcContext->proc)
    100         mHwcContext->proc->invalidate(mHwcContext->proc);
    101 }
    102 
    103 android::status_t QClient::screenRefresh() {
    104     status_t result = NO_INIT;
    105     if(mHwcContext->proc) {
    106         mHwcContext->proc->invalidate(mHwcContext->proc);
    107         result = NO_ERROR;
    108     }
    109     return result;
    110 }
    111 }
    112