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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 "EglContext.h"
     17 #include "EglDisplay.h"
     18 #include "EglGlobalInfo.h"
     19 #include "EglOsApi.h"
     20 
     21 unsigned int EglContext::s_nextContextHndl = 0;
     22 
     23 extern EglGlobalInfo* g_eglInfo; // defined in EglImp.cpp
     24 
     25 bool EglContext::usingSurface(SurfacePtr surface) {
     26   return surface.Ptr() == m_read.Ptr() || surface.Ptr() == m_draw.Ptr();
     27 }
     28 
     29 EglContext::EglContext(EglDisplay *dpy, EGLNativeContextType context,ContextPtr shared_context,
     30             EglConfig* config,GLEScontext* glesCtx,GLESVersion ver,ObjectNameManager* mngr):
     31 m_dpy(dpy),
     32 m_native(context),
     33 m_config(config),
     34 m_glesContext(glesCtx),
     35 m_read(NULL),
     36 m_draw(NULL),
     37 m_version(ver),
     38 m_mngr(mngr)
     39 {
     40     m_shareGroup = shared_context.Ptr()?
     41                    mngr->attachShareGroup(context,shared_context->nativeType()):
     42                    mngr->createShareGroup(context);
     43     m_hndl = ++s_nextContextHndl;
     44 }
     45 
     46 EglContext::~EglContext()
     47 {
     48 
     49     //
     50     // remove the context in the underlying OS layer
     51     //
     52     EglOS::destroyContext(m_dpy->nativeType(),m_native);
     53 
     54     //
     55     // call the client-api to remove the GLES context
     56     //
     57     g_eglInfo->getIface(version())->deleteGLESContext(m_glesContext);
     58 
     59     if (m_mngr)
     60     {
     61         m_mngr->deleteShareGroup(m_native);
     62     }
     63 }
     64 
     65 void EglContext::setSurfaces(SurfacePtr read,SurfacePtr draw)
     66 {
     67     m_read = read;
     68     m_draw = draw;
     69 }
     70 
     71 bool EglContext::getAttrib(EGLint attrib,EGLint* value) {
     72     switch(attrib) {
     73     case EGL_CONFIG_ID:
     74         *value = m_config->id();
     75         break;
     76     default:
     77         return false;
     78     }
     79     return true;
     80 }
     81 
     82 bool EglContext::attachImage(unsigned int imageId,ImagePtr img){
     83    if(m_attachedImages.find(imageId) == m_attachedImages.end()){
     84        m_attachedImages[imageId] = img;
     85        return true;
     86    }
     87    return false;
     88 }
     89 
     90 void EglContext::detachImage(unsigned int imageId){
     91     m_attachedImages.erase(imageId);
     92 }
     93 
     94