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      1 /*
      2 * Copyright (C) 2011 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 #include "EglGlobalInfo.h"
     17 #include "EglOsApi.h"
     18 #include <string.h>
     19 #include "ClientAPIExts.h"
     20 
     21 int EglGlobalInfo::m_refCount = 0;
     22 EglGlobalInfo* EglGlobalInfo::m_singleton = NULL;
     23 
     24 
     25 EglGlobalInfo::EglGlobalInfo(){
     26     m_default = EglOS::getDefaultDisplay();
     27 #ifdef _WIN32
     28     EglOS::initPtrToWglFunctions();
     29 #endif
     30     memset(m_gles_ifaces,0,sizeof(m_gles_ifaces));
     31     memset(m_gles_extFuncs_inited,0,sizeof(m_gles_extFuncs_inited));
     32 }
     33 
     34 EglGlobalInfo* EglGlobalInfo::getInstance() {
     35     if(!m_singleton) {
     36         m_singleton = new EglGlobalInfo();
     37         m_refCount = 0;
     38     }
     39     m_refCount++;
     40     return m_singleton;
     41 }
     42 
     43 void EglGlobalInfo::delInstance() {
     44     m_refCount--;
     45     if(m_refCount <= 0 && m_singleton) {
     46         delete m_singleton;
     47         m_singleton = NULL;
     48     }
     49 
     50 }
     51 
     52 EglDisplay* EglGlobalInfo::addDisplay(EGLNativeDisplayType dpy,EGLNativeInternalDisplayType idpy) {
     53     //search if it is not already exists
     54     android::Mutex::Autolock mutex(m_lock);
     55     for(DisplaysMap::iterator it = m_displays.begin(); it != m_displays.end() ;it++) {
     56         if((*it).second == dpy) return (*it).first;
     57     }
     58 
     59     if (!EglOS::validNativeDisplay(idpy))
     60         return NULL;
     61 
     62     EglDisplay* p_dpy = new EglDisplay(idpy);
     63     if(p_dpy) {
     64         m_displays[p_dpy] = dpy;
     65         return p_dpy;
     66     }
     67     return NULL;
     68 }
     69 
     70 bool  EglGlobalInfo::removeDisplay(EGLDisplay dpy) {
     71     android::Mutex::Autolock mutex(m_lock);
     72     for(DisplaysMap::iterator it = m_displays.begin(); it != m_displays.end() ;it++) {
     73         if(static_cast<EGLDisplay>((*it).first) == dpy) {
     74             delete (*it).first;
     75             m_displays.erase(it);
     76             return true;
     77         }
     78     }
     79     return false;
     80 }
     81 
     82 EglDisplay* EglGlobalInfo::getDisplay(EGLNativeDisplayType dpy) {
     83     android::Mutex::Autolock mutex(m_lock);
     84     for(DisplaysMap::iterator it = m_displays.begin(); it != m_displays.end() ;it++) {
     85         if((*it).second == dpy) return (*it).first;
     86     }
     87     return NULL;
     88 }
     89 
     90 EglDisplay* EglGlobalInfo::getDisplay(EGLDisplay dpy) {
     91     android::Mutex::Autolock mutex(m_lock);
     92     DisplaysMap::iterator it = m_displays.find(static_cast<EglDisplay*>(dpy));
     93     return (it != m_displays.end() ? (*it).first : NULL);
     94 }
     95 
     96 EGLNativeInternalDisplayType EglGlobalInfo::generateInternalDisplay(EGLNativeDisplayType dpy){
     97     return EglOS::getInternalDisplay(dpy);
     98 }
     99 
    100 void EglGlobalInfo::initClientExtFuncTable(GLESVersion ver)
    101 {
    102     android::Mutex::Autolock mutex(m_lock);
    103     if (!m_gles_extFuncs_inited[ver]) {
    104         ClientAPIExts::initClientFuncs(m_gles_ifaces[ver], (int)ver - 1);
    105         m_gles_extFuncs_inited[ver] = true;
    106     }
    107 }
    108