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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef INCLUDED_VCL_OPENGL_OPENGLCONTEXT_HXX
#define INCLUDED_VCL_OPENGL_OPENGLCONTEXT_HXX
#include <string.h>
#include <GL/glew.h>
#if defined( MACOSX )
#elif defined( IOS )
#elif defined( ANDROID )
#elif defined( UNX )
# include <prex.h>
# include "GL/glxew.h"
# include <postx.h>
#elif defined( _WIN32 )
# include "prewin.h"
# include "windows.h"
# include "postwin.h"
#endif
#if defined( _WIN32 )
#include <GL/glext.h>
#include <GL/wglext.h>
#elif defined( MACOSX )
#elif defined( IOS )
#elif defined( ANDROID )
#elif defined( UNX )
#include <GL/glext.h>
#define GLX_GLXEXT_PROTOTYPES 1
#include <GL/glx.h>
#include <GL/glxext.h>
#endif
#include <vcl/vclopengl_dllapi.hxx>
#include <boost/scoped_ptr.hpp>
#include <vcl/window.hxx>
#include <tools/gen.hxx>
#include <vcl/syschild.hxx>
/// Holds the information of our new child window
struct GLWindow
{
// Copy of gluCheckExtension(), from the Apache-licensed
// https://code.google.com/p/glues/source/browse/trunk/glues/source/glues_registry.c
static GLboolean checkExtension(const GLubyte* extName, const GLubyte* extString)
{
GLboolean flag=GL_FALSE;
char* word;
char* lookHere;
char* deleteThis;
if (extString==NULL)
{
return GL_FALSE;
}
deleteThis=lookHere=(char*)malloc(strlen((const char*)extString)+1);
if (lookHere==NULL)
{
return GL_FALSE;
}
/* strtok() will modify string, so copy it somewhere */
strcpy(lookHere,(const char*)extString);
while ((word=strtok(lookHere, " "))!=NULL)
{
if (strcmp(word,(const char*)extName)==0)
{
flag=GL_TRUE;
break;
}
lookHere=NULL; /* get next token */
}
free((void*)deleteThis);
return flag;
}
#if defined( _WIN32 )
HWND hWnd;
HDC hDC;
HGLRC hRC;
#elif defined( MACOSX )
#elif defined( IOS )
#elif defined( ANDROID )
#elif defined( UNX )
Display* dpy;
int screen;
XLIB_Window win;
#if defined( GLX_VERSION_1_3 ) && defined( GLX_EXT_texture_from_pixmap )
GLXFBConfig fbc;
#endif
XVisualInfo* vi;
GLXContext ctx;
bool HasGLXExtension( const char* name ) { return checkExtension( (const GLubyte*) name, (const GLubyte*) GLXExtensions ); }
const char* GLXExtensions;
#endif
unsigned int bpp;
unsigned int Width;
unsigned int Height;
const GLubyte* GLExtensions;
bool bMultiSampleSupported;
bool HasGLExtension( const char* name ) { return checkExtension( (const GLubyte*) name, GLExtensions ); }
GLWindow()
:
#if defined( _WIN32 )
#elif defined( MACOSX )
#elif defined( IOS )
#elif defined( ANDROID )
#elif defined( UNX )
dpy(NULL),
screen(0),
win(0),
#if defined( GLX_VERSION_1_3 ) && defined( GLX_EXT_texture_from_pixmap )
fbc(0),
#endif
vi(NULL),
ctx(0),
GLXExtensions(NULL),
#endif
bpp(0),
Width(0),
Height(0),
GLExtensions(NULL),
bMultiSampleSupported(false)
{
}
};
class VCLOPENGL_DLLPUBLIC OpenGLContext
{
public:
OpenGLContext();
~OpenGLContext();
bool init(Window* pParent = 0);
bool init(SystemChildWindow* pChildWindow);
void swapBuffers();
void setWinSize(const Size& rSize);
GLWindow& getOpenGLWindow();
void renderToFile();
bool isInitialized()
{
return mbInitialized;
}
static SystemWindowData generateWinData(Window* pParent);
private:
SAL_DLLPRIVATE bool initWindow();
SAL_DLLPRIVATE bool ImplInit();
GLWindow m_aGLWin;
boost::scoped_ptr<Window> m_pWindow;
Window* mpWindow; //points to m_pWindow or the parent window, don't delete it
SystemChildWindow* m_pChildWindow;
boost::scoped_ptr<SystemChildWindow> m_pChildWindowGC;
bool mbInitialized;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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