virtualx-engine/platform/osx/context_gl_osx.cpp

/*************************************************************************/
/*  context_gl_osx.cpp                                                   */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
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/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/*************************************************************************/
#include "context_gl_osx.h"

#ifdef OSX_ENABLED
#if defined(OPENGL_ENABLED) || defined(LEGACYGL_ENABLED)
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

#define GLX_CONTEXT_MAJOR_VERSION_ARB		0x2091
#define GLX_CONTEXT_MINOR_VERSION_ARB		0x2092

void ContextGL_OSX::release_current() {

	aglSetCurrentContext( context );
}

void ContextGL_OSX::make_current() {

	aglSetCurrentContext( NULL );
}
void ContextGL_OSX::swap_buffers() {

	aglSwapBuffers( context );
}

Error ContextGL_OSX::initialize() {

	if ( (Ptr) kUnresolvedCFragSymbolAddress == (Ptr) aglChoosePixelFormat )
		return FAILED;

	GLint attributes[] = { AGL_RGBA,
						   AGL_DOUBLEBUFFER,
						   AGL_DEPTH_SIZE, 32,
						   AGL_NO_RECOVERY,
						   AGL_NONE,
						   AGL_NONE };

	AGLPixelFormat format = NULL;

	format = aglChoosePixelFormat( NULL, 0, attributes );

	if ( !format )
		return FAILED;

	context = aglCreateContext( format, 0 );

	if ( !context )
		return FAILED;

	aglDestroyPixelFormat( format );

	aglSetWindowRef( context, window );

	GLint swapInterval = 1;
	aglSetInteger( context, AGL_SWAP_INTERVAL, &swapInterval );

	aglSetCurrentContext( context );

	return OK;
}

ContextGL_OSX::ContextGL_OSX(WindowRef p_window) {

	window = p_window;
}


ContextGL_OSX::~ContextGL_OSX() {

	if (context)
		aglDestroyContext(context);
}


#endif
#endif