mirror of
https://github.com/lucaspalomodevelop/meshlab.git
synced 2026-03-13 16:14:38 +00:00
73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
/****************************************************************************
|
|
* MeshLab o o *
|
|
* An extendible mesh processor o o *
|
|
* _ O _ *
|
|
* Copyright(C) 2005, 2006 \/)\/ *
|
|
* Visual Computing Lab /\/| *
|
|
* ISTI - Italian National Research Council | *
|
|
* \ *
|
|
* All rights reserved. *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU General Public License as published by *
|
|
* the Free Software Foundation; either version 2 of the License, or *
|
|
* (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
|
|
* for more details. *
|
|
* *
|
|
****************************************************************************/
|
|
|
|
#include "GLExtensionsManager.h"
|
|
|
|
bool GLExtensionsManager::glewInitialized;
|
|
|
|
void GLExtensionsManager::init()
|
|
{
|
|
glewInitialized = false;
|
|
}
|
|
|
|
/**
|
|
* @brief initializes the GL extensions context, without thorwing any exception
|
|
* @return true if the context has been correctly initializes, false otherwise
|
|
*/
|
|
bool GLExtensionsManager::initializeGLextensions_notThrowing()
|
|
{
|
|
GLenum err = GLEW_OK;
|
|
if (!glewInitialized) {
|
|
glewExperimental = GL_TRUE;
|
|
err = glewInit();
|
|
if (err != GLEW_OK) {
|
|
qWarning("GLEW initialization failed: %s",
|
|
(const char *)glewGetErrorString(err));
|
|
}
|
|
else {
|
|
glewInitialized = true;
|
|
}
|
|
}
|
|
return err == GLEW_OK;
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief initializes the GL extensions context, thorwing a MLException if something
|
|
* wrong happens during the initialization.
|
|
*/
|
|
void GLExtensionsManager::initializeGLextensions()
|
|
{
|
|
if (!glewInitialized) {
|
|
glewExperimental = GL_TRUE;
|
|
GLenum err = glewInit();
|
|
if (err != GLEW_OK && err != GLEW_ERROR_NO_GLX_DISPLAY) {
|
|
throw MLException(QString("GLEW initialization failed: %1\n")
|
|
.arg((const char *)glewGetErrorString(err)));
|
|
}
|
|
else {
|
|
glewInitialized = true;
|
|
}
|
|
}
|
|
}
|