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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2015 Marco Antognini (antognini.marco@gmail.com),
// Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_SFCONTEXT_HPP
#define SFML_SFCONTEXT_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Window/GlContext.hpp>
////////////////////////////////////////////////////////////
/// Predefine OBJC classes
////////////////////////////////////////////////////////////
#ifdef __OBJC__
@class NSOpenGLContext;
typedef NSOpenGLContext* NSOpenGLContextRef;
@class NSOpenGLView;
typedef NSOpenGLView* NSOpenGLViewRef;
@class NSWindow;
typedef NSWindow* NSWindowRef;
#else // If C++
typedef void* NSOpenGLContextRef;
typedef void* NSOpenGLViewRef;
typedef void* NSWindowRef;
#endif
namespace sf
{
namespace priv
{
////////////////////////////////////////////////////////////
/// \brief OSX (Cocoa) implementation of OpenGL contexts
///
////////////////////////////////////////////////////////////
class SFContext : public GlContext
{
public:
////////////////////////////////////////////////////////////
/// \brief Create a new context, not associated to a window
///
/// \param shared Context to share the new one with (can be NULL)
///
////////////////////////////////////////////////////////////
SFContext(SFContext* shared);
////////////////////////////////////////////////////////////
/// \brief Create a new context attached to a window
///
/// \param shared Context to share the new one with
/// \param settings Creation parameters
/// \param owner Pointer to the owner window
/// \param bitsPerPixel Pixel depth, in bits per pixel
///
////////////////////////////////////////////////////////////
SFContext(SFContext* shared, const ContextSettings& settings,
const WindowImpl* owner, unsigned int bitsPerPixel);
////////////////////////////////////////////////////////////
/// \brief Create a new context that embeds its own rendering target
///
/// \param shared Context to share the new one with
/// \param settings Creation parameters
/// \param width Back buffer width, in pixels
/// \param height Back buffer height, in pixels
///
////////////////////////////////////////////////////////////
SFContext(SFContext* shared, const ContextSettings& settings,
unsigned int width, unsigned int height);
////////////////////////////////////////////////////////////
/// \brief Destructor
///
////////////////////////////////////////////////////////////
~SFContext();
////////////////////////////////////////////////////////////
/// \brief Get the address of an OpenGL function
///
/// \param name Name of the function to get the address of
///
/// \return Address of the OpenGL function, 0 on failure
///
////////////////////////////////////////////////////////////
static GlFunctionPointer getFunction(const char* name);
////////////////////////////////////////////////////////////
/// \brief Display what has been rendered to the context so far
///
////////////////////////////////////////////////////////////
virtual void display();
////////////////////////////////////////////////////////////
/// \brief Enable or disable vertical synchronization
///
/// Activating vertical synchronization will limit the number
/// of frames displayed to the refresh rate of the monitor.
/// This can avoid some visual artifacts, and limit the framerate
/// to a good value (but not constant across different computers).
///
/// \param enabled True to enable v-sync, false to deactivate
///
////////////////////////////////////////////////////////////
virtual void setVerticalSyncEnabled(bool enabled);
protected:
////////////////////////////////////////////////////////////
/// \brief Activate the context as the current target
/// for rendering
///
/// \return True on success, false if any error happened
///
////////////////////////////////////////////////////////////
virtual bool makeCurrent();
private:
////////////////////////////////////////////////////////////
/// \brief Create the context
/// \note Must only be called from Ctor.
///
/// \param shared Context to share the new one with (can be NULL)
/// \param bitsPerPixel bpp
/// \param settings Creation parameters
///
////////////////////////////////////////////////////////////
void createContext(SFContext* shared,
unsigned int bitsPerPixel,
const ContextSettings& settings);
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
NSOpenGLContextRef m_context; ///< OpenGL context.
NSOpenGLViewRef m_view; ///< Only for offscreen context.
NSWindowRef m_window; ///< Only for offscreen context.
};
} // namespace priv
} // namespace sf
#endif // SFML_SFCONTEXT_HPP
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