/*
 * Copyright (c) 2002-2008 LWJGL Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'LWJGL' nor the names of
 *   its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * $Id$
 *
 * Base Win32 display
 *
 * @author cix_foo <cix_foo@users.sourceforge.net>
 * @author mojang
 * @author kappaOne <one.kappa@gmail.com>
 * @version $Revision$
 */

#ifndef __LWJGL_CONTEXT_H
#define __LWJGL_CONTEXT_H

#include <Cocoa/Cocoa.h>
#include <OpenGL/gl.h>
#include <OpenGL/glext.h>
#include "common_tools.h"
#include <jawt_md.h>

enum {
	NSControlLeftKeyMask =      0x0001,
	NSControlRightKeyMask =     0x2000,
	NSShiftLeftKeyMask =        0x0002,
	NSShiftRightKeyMask =       0x0004,
	NSCommandLeftKeyMask =		0x0008,
	NSCommandRightKeyMask =		0x0010,
	NSAlternateLeftKeyMask =    0x0020,
	NSAlternateRightKeyMask =   0x0040
};

@class NSOpenGLContext, NSOpenGLPixelFormat, MacOSXOpenGLView, MacOSXKeyableWindow;

typedef struct {
	MacOSXKeyableWindow *window;

	NSRect display_rect;

	MacOSXOpenGLView *view;
	NSOpenGLContext *context;
	
	// Native objects for Java callbacks
	jobject jdisplay;
	jobject jmouse;
	jobject jkeyboard;
	
	jboolean fullscreen;
	jboolean undecorated;
	jboolean resizable;
	jboolean parented;

	jboolean enableFullscreenModeAPI;
	jboolean enableHighDPI;
	
	jboolean resized;
	
} MacOSXWindowInfo;

@interface MacOSXOpenGLView : NSView
{
	@public
	MacOSXWindowInfo*       _parent;

	@private
	NSOpenGLContext*        _openGLContext;
	NSOpenGLPixelFormat*    _pixelFormat;
	NSTrackingArea *		_trackingArea;
}

+ (NSOpenGLPixelFormat*)defaultPixelFormat;
- (BOOL)windowShouldClose:(id)sender;
- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender;
- (id)initWithFrame:(NSRect)frameRect pixelFormat:(NSOpenGLPixelFormat*)format;
- (void)setOpenGLContext:(NSOpenGLContext*)context;
- (NSOpenGLContext*)openGLContext;
- (void)clearGLContext;
- (void)prepareOpenGL;
- (void)update;
- (void)lockFocus;
- (void)setPixelFormat:(NSOpenGLPixelFormat*)pixelFormat;
- (NSOpenGLPixelFormat*)pixelFormat;
- (void)setParent:(MacOSXWindowInfo*)parent;
- (BOOL)acceptsFirstResponder;
@end

@interface GLLayer : CAOpenGLLayer {
	@public
	JAWT_MacOSXDrawingSurfaceInfo *macosx_dsi;
	JAWT_Rectangle canvasBounds;
	MacOSXWindowInfo *window_info;
	bool setViewport;
	bool autoResizable;
	
	@private
	CGLContextObj contextObject;
	int fboID;
	int imageRenderBufferID;
	int depthRenderBufferID;
	int fboWidth;
	int fboHeight;
}

- (void) attachLayer;
- (void) removeLayer;
- (void) blitFrameBuffer;

- (int) getWidth;
- (int) getHeight;
@end

typedef struct {
	bool isCALayer;
	bool isWindowed;
	MacOSXWindowInfo *window_info;
	NSOpenGLPixelFormat *pixel_format;
	NSOpenGLPixelBuffer *pbuffer;
	NSView *parent;
	GLLayer *glLayer;
} MacOSXPeerInfo;

@interface MacOSXKeyableWindow : NSWindow
+ (void)createWindow;
+ (void)destroyWindow;
- (BOOL)canBecomeKeyWindow;
@end

NSOpenGLPixelFormat *choosePixelFormat(JNIEnv *env, jobject pixel_format, bool gl32, bool use_display_bpp, bool support_window, bool support_pbuffer, bool double_buffered);
#endif