mirror of
https://github.com/OPM/ResInsight.git
synced 2026-10-24 22:27:55 -05:00
Kristian Bendiksen
7897e41c63
* #11371 Remove GLEW dependency and use Qt's QOpenGLFunctions Replace embedded GLEW library with Qt's native OpenGL function loading (QOpenGLFunctions/QOpenGLExtraFunctions) to resolve Qt 6 compatibility warnings about GLEW conflicts with qopenglfunctions.h. - Update CVF_CALLSITE_OPENGL macro to provide QOpenGLExtraFunctions pointer - Replace GLEW initialization with Qt OpenGL context validation - Keep direct calls for fixed-function GL (glBegin, glEnd, glMatrixMode, etc.) - Remove glew/ directory containing embedded GLEW source * #11371 Remove GLU dependency to fix Windows build error GL/glu.h conflicts with Qt's OpenGL headers on Windows due to APIENTRY redefinition. Replace gluBuild2DMipmaps with glTexImage2D + glGenerateMipmap, and gluOrtho2D with glOrtho.
155 lines
5.0 KiB
C++
155 lines
5.0 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#include "cvfBase.h"
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#include "cvfOpenGLUtils.h"
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#include "cvfOpenGL.h"
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#include "cvfOpenGLContext.h"
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#include "cvfOpenGLCapabilities.h"
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namespace cvf {
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//==================================================================================================
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///
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/// \class cvf::OpenGLUtils
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/// \ingroup Render
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///
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/// Static class providing OpenGL helpers
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///
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//==================================================================================================
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//--------------------------------------------------------------------------------------------------
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/// Store the current OpenGL context settings by using OpenGL's built in push methods.
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///
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/// Note: This call MUST be matched with a corresponding popOpenGLState() call.
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//--------------------------------------------------------------------------------------------------
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void OpenGLUtils::pushOpenGLState(OpenGLContext* oglContext)
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{
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CVF_CALLSITE_OPENGL(oglContext);
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const cvf::OpenGLCapabilities* oglCaps = oglContext->capabilities();
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// Only relevant for fixed function
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if (!oglCaps->supportsFixedFunction())
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{
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return;
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}
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CVF_CHECK_OGL(oglContext);
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// Fixed-function calls - use direct OpenGL calls (not through cvfGL)
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glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
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CVF_CHECK_OGL(oglContext);
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// For now disable pushing of the vertex array related attributes as it gives a mystical
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// crash on Redhat5 under VMWare. Not a big issue, but maybe we can do without this push?
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//glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
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CVF_CHECK_OGL(oglContext);
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glPushAttrib(GL_ALL_ATTRIB_BITS);
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CVF_CHECK_OGL(oglContext);
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// Note: Only preserves matrix stack for texture unit 0
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if (oglCaps->supportsOpenGL2())
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{
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cvfGL->glActiveTexture(GL_TEXTURE0);
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}
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glMatrixMode(GL_TEXTURE);
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glPushMatrix();
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CVF_CHECK_OGL(oglContext);
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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CVF_CHECK_OGL(oglContext);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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CVF_CHECK_OGL(oglContext);
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}
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//--------------------------------------------------------------------------------------------------
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/// Set back the stored OpenGL context settings by using OpenGL's built in pop methods.
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///
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/// Note: This call MUST be matched with a corresponding pushOpenGLState() call.
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//--------------------------------------------------------------------------------------------------
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void OpenGLUtils::popOpenGLState(OpenGLContext* oglContext)
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{
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CVF_CALLSITE_OPENGL(oglContext);
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const cvf::OpenGLCapabilities* oglCaps = oglContext->capabilities();
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// Only relevant for fixed function
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if (!oglCaps->supportsFixedFunction())
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{
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return;
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}
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CVF_CHECK_OGL(oglContext);
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// Note: Only preserves matrix stack for texture unit 0
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if (oglCaps->supportsOpenGL2())
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{
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cvfGL->glActiveTexture(GL_TEXTURE0);
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}
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// Fixed-function calls - use direct OpenGL calls (not through cvfGL)
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glMatrixMode(GL_TEXTURE);
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glPopMatrix();
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CVF_CHECK_OGL(oglContext);
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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CVF_CHECK_OGL(oglContext);
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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CVF_CHECK_OGL(oglContext);
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glPopAttrib();
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CVF_CHECK_OGL(oglContext);
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// Currently not pushing vertex attribs, so comment out the pop
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//glPopClientAttrib();
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glPopClientAttrib();
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CVF_CHECK_OGL(oglContext);
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}
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} // namespace cvf
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