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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 "RenderContext.h"
     17 #include "FBConfig.h"
     18 #include "FrameBuffer.h"
     19 #include "EGLDispatch.h"
     20 #include "GLDispatch.h"
     21 
     22 RenderContext *RenderContext::create(int p_config,
     23                                      RenderContextPtr p_shareContext,
     24                                      bool p_isGL2)
     25 {
     26     const FBConfig *fbconf = FBConfig::get(p_config);
     27     if (!fbconf) {
     28         return NULL;
     29     }
     30 
     31     RenderContext *c = new RenderContext();
     32     if (!c) {
     33         return NULL;
     34     }
     35 
     36     EGLContext share = EGL_NO_CONTEXT;
     37     if (p_shareContext.Ptr() != NULL) {
     38         share = p_shareContext->getEGLContext();
     39     }
     40 
     41     GLint glContextAttribs[] = {
     42         EGL_CONTEXT_CLIENT_VERSION, 1,
     43         EGL_NONE
     44     };
     45 
     46     if (p_isGL2) {
     47         glContextAttribs[1] = 2;
     48         c->m_isGL2 = true;
     49     }
     50 
     51     c->m_ctx = s_egl.eglCreateContext(FrameBuffer::getFB()->getDisplay(),
     52                                       fbconf->getEGLConfig(), share,
     53                                       glContextAttribs);
     54 
     55     if (c->m_ctx == EGL_NO_CONTEXT) {
     56         delete c;
     57         return NULL;
     58     }
     59 
     60     c->m_config = p_config;
     61     return c;
     62 }
     63 
     64 RenderContext::RenderContext() :
     65     m_ctx(EGL_NO_CONTEXT),
     66     m_config(0),
     67     m_isGL2(false)
     68 {
     69 }
     70 
     71 RenderContext::~RenderContext()
     72 {
     73     if (m_ctx != EGL_NO_CONTEXT) {
     74         s_egl.eglDestroyContext(FrameBuffer::getFB()->getDisplay(), m_ctx);
     75     }
     76 }
     77