/**

 * $Id$

 *

 * Cocoa (NSOpenGL) video driver

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program 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 General Public License for more details.

 */

#include <AppKit/NSOpenGL.h>

#include "drivers/video_nsgl.h"

#include "drivers/video_gl.h"

#include "pvr2/glutil.h"

static NSOpenGLContext *nsgl_context = nil;

gboolean video_nsgl_init_driver( NSView *view, display_driver_t driver )

{

    NSAutoreleasePool *pool = [NSAutoreleasePool new];

	NSOpenGLPixelFormatAttribute attributes[] = {

			NSOpenGLPFAWindow,

//			NSOpenGLPFADoubleBuffer,

			NSOpenGLPFADepthSize, (NSOpenGLPixelFormatAttribute)24,

			(NSOpenGLPixelFormatAttribute)nil };

	NSOpenGLPixelFormat *pixelFormat = 

		[[[NSOpenGLPixelFormat alloc] initWithAttributes: attributes] autorelease];

	nsgl_context = 

		[[NSOpenGLContext alloc] initWithFormat: pixelFormat shareContext: nil];

	[nsgl_context setView: view];

	[nsgl_context makeCurrentContext];

	[pool release];

	if( gl_fbo_is_supported() ) {

		gl_fbo_init(driver);

	} else {

		ERROR( "FBO not supported" );

		return FALSE;

	}

	return TRUE;

}

void video_nsgl_update()

{

    if( nsgl_context != nil ) {

        [nsgl_context update];

    }

}

void video_nsgl_make_current()

{

    if( nsgl_context != nil ) {

        [nsgl_context makeCurrentContext];

    }

}

void video_nsgl_swap_buffers()

{

    if( nsgl_context != nil ) {

        [nsgl_context flushBuffer];

    }

}

void video_nsgl_shutdown()

{

	if( nsgl_context != nil ) {

		[NSOpenGLContext clearCurrentContext];

		[nsgl_context release];

		nsgl_context = nil;

	}

}