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/********************************************************************************
* *
* G L R e n d e r i n g C o n t e x t *
* *
*********************************************************************************
* Copyright (C) 2000,2022 by Jeroen van der Zijp. All Rights Reserved. *
*********************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 3 of the License, or *
* (at your option) any later version. *
* *
* This library 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/> *
********************************************************************************/
#ifndef FXGLCONTEXT_H
#define FXGLCONTEXT_H
#ifndef FXID_H
#include "FXId.h"
#endif
namespace FX {
/// GL Context
class FXAPI FXGLContext : public FXId {
FXDECLARE(FXGLContext)
private:
FXDrawable *surface; // Drawable surface
FXGLVisual *visual; // Visual of the context
FXGLContext *shared; // Shared with other
private:
FXGLContext(const FXGLContext&);
FXGLContext &operator=(const FXGLContext&);
protected:
FXGLContext();
public:
/**
* Construct an GLContext with given GL Visual. Optionally
* share GL objects (textures, etc) with another GLContext shr.
*/
FXGLContext(FXApp *a,FXGLVisual *vis,FXGLContext* shr=nullptr);
/// Create context
virtual void create();
/// Detach context
virtual void detach();
/// Destroy context
virtual void destroy();
/// Change visual
void setVisual(FXGLVisual* vis);
/// Get the visual
FXGLVisual* getVisual() const { return visual; }
/// Change share context
void setShared(FXGLContext *ctx);
/// Get share context
FXGLContext* getShared() const { return shared; }
/// Return active drawable
FXDrawable *drawable() const { return surface; }
/// Make context current on drawable
FXbool begin(FXDrawable *draw);
/// Make context non current
FXbool end();
/// Swap front and back buffer
void swapBuffers();
/// Return true if THIS context is current
FXbool isCurrent() const;
/// Return true if thread has ANY current context
static FXbool hasCurrent();
/// Has double buffering
FXbool isDoubleBuffer() const;
/// Has stereo buffering
FXbool isStereo() const;
/// Save object to stream
virtual void save(FXStream& store) const;
/// Load object from stream
virtual void load(FXStream& store);
/// Destructor
virtual ~FXGLContext();
};
/// Create a display list of bitmaps from font glyphs in a font
extern FXAPI FXbool glUseFXFont(FXFont* font,int first,int count,int list);
}
#endif
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