src/video/quartz/SDL_QuartzVideo.h
author Sam Lantinga <slouken@libsdl.org>
Sat, 07 Dec 2002 06:48:49 +0000
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From: Darrell Walisser Subject: Re: [SDL] OS X and power save Here ya go. This works just fine. One might complain that it doesn't generate the event until after wake as completed (there is about 5 seconds between the screen coming up and the expose event), but I think that's OK.
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    slouken@libsdl.org
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*/
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/*    
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    @file   SDL_QuartzVideo.h
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    @author Darrell Walisser, Max Horn, et al.
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    @abstract SDL video driver for Mac OS X.
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    @discussion
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    TODO
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        - Hardware Cursor support with NSCursor instead of Carbon
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        - Keyboard repeat/mouse speed adjust (if needed)
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        - Multiple monitor support (currently only main display)
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        - Accelerated blitting support
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        - Fix white OpenGL window on minimize (fixed) (update: broken again on 10.2)
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        - Find out what events should be sent/ignored if window is minimized
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        - Find a way to deal with external resolution/depth switch while app is running
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        - Resizeable windows (done)
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        - Check accuracy of QZ_SetGamma()
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    Problems:
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        - OGL not working in full screen with software renderer
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        - SetColors sets palette correctly but clears framebuffer
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        - Crash in CG after several mode switches (I think this has been fixed)
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        - Retained windows don't draw their title bar quite right (OS Bug) (not using retained windows)
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        - Cursor in 8 bit modes is screwy (might just be Radeon PCI bug) (update: not just Radeon)
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        - Warping cursor delays mouse events for a fraction of a second,
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          there is a hack around this that helps a bit
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*/
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#include <Cocoa/Cocoa.h>
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#include <OpenGL/OpenGL.h>
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#include <Carbon/Carbon.h>
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#include <QuickTime/QuickTime.h>
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#include "SDL_video.h"
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#include "SDL_error.h"
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#include "SDL_timer.h"
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#include "SDL_syswm.h"
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#include "SDL_sysvideo.h"
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#include "SDL_pixels_c.h"
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#include "SDL_events_c.h"
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/* 
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    Add methods to get at private members of NSScreen. 
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    Since there is a bug in Apple's screen switching code
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    that does not update this variable when switching
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    to fullscreen, we'll set it manually (but only for the
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    main screen).
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*/
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@interface NSScreen (NSScreenAccess)
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- (void) setFrame:(NSRect)frame;
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@end
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@implementation NSScreen (NSScreenAccess)
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- (void) setFrame:(NSRect)frame;
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{
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    _frame = frame;
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}
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@end
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/* 
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    This is a workaround to directly access NSOpenGLContext's CGL context
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    We need this to check for errors NSOpenGLContext doesn't support
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*/
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@interface NSOpenGLContext (CGLContextAccess)
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- (CGLContextObj) cglContext;
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@end
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@implementation NSOpenGLContext (CGLContextAccess)
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- (CGLContextObj) cglContext;
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{
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    return _contextAuxiliary;
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}
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@end
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/* 
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    Structure for rez switch gamma fades
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    We can hide the monitor flicker by setting the gamma tables to 0
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*/
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#define QZ_GAMMA_TABLE_SIZE 256
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typedef struct {
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    CGGammaValue red[QZ_GAMMA_TABLE_SIZE];
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    CGGammaValue green[QZ_GAMMA_TABLE_SIZE];
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    CGGammaValue blue[QZ_GAMMA_TABLE_SIZE];
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} SDL_QuartzGammaTable;
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/* Main driver structure to store required state information */
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typedef struct SDL_PrivateVideoData {
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    CGDirectDisplayID  display;            /* 0 == main display (only support single display) */
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    CFDictionaryRef    mode;               /* current mode of the display */
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    CFDictionaryRef    save_mode;          /* original mode of the display */
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    CFArrayRef         mode_list;          /* list of available fullscreen modes */
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    CGDirectPaletteRef palette;            /* palette of an 8-bit display */
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    NSOpenGLContext    *gl_context;        /* OpenGL rendering context */
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    Uint32             width, height, bpp; /* frequently used data about the display */
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    Uint32             flags;              /* flags for current mode, for teardown purposes */
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    Uint32             video_set;          /* boolean; indicates if video was set correctly */
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    Uint32             warp_flag;          /* boolean; notify to event loop that a warp just occured */
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    Uint32             warp_ticks;         /* timestamp when the warp occured */
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    NSWindow           *window;            /* Cocoa window to implement the SDL window */
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    NSQuickDrawView    *view;              /* the window's view; draw 2D and OpenGL into this view */
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    SDL_Surface        *resize_icon;       /* icon for the resize badge, we have to draw it by hand */
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    SDL_GrabMode       current_grab_mode;  /* default value is SDL_GRAB_OFF */
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    BOOL               in_foreground;      /* boolean; indicate if app is in foreground or not */
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    SDL_Rect           **client_mode_list; /* resolution list to pass back to client */
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    SDLKey             keymap[256];        /* Mac OS X to SDL key mapping */
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    Uint32             current_mods;       /* current keyboard modifiers, to track modifier state */
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    Uint32             last_virtual_button;/* last virtual mouse button pressed */
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    io_connect_t       powerConnection;    /* used with IOKit to detect wake from sleep */
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    ImageDescriptionHandle yuv_idh;
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    MatrixRecordPtr        yuv_matrix;
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    DecompressorComponent  yuv_codec;
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    ImageSequence          yuv_seq;
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    PlanarPixmapInfoYUV420 *yuv_pixmap;
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    Sint16                  yuv_width, yuv_height;
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    CGrafPtr                yuv_port;
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} SDL_PrivateVideoData ;
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#define _THIS    SDL_VideoDevice *this
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#define display_id (this->hidden->display)
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#define mode (this->hidden->mode)
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#define save_mode (this->hidden->save_mode)
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#define mode_list (this->hidden->mode_list)
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#define palette (this->hidden->palette)
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#define gl_context (this->hidden->gl_context)
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#define device_width (this->hidden->width)
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#define device_height (this->hidden->height)
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#define device_bpp (this->hidden->bpp)
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#define mode_flags (this->hidden->flags)
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#define qz_window (this->hidden->window)
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#define window_view (this->hidden->view)
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#define video_set (this->hidden->video_set)
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#define warp_ticks (this->hidden->warp_ticks)
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#define warp_flag (this->hidden->warp_flag)
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#define resize_icon (this->hidden->resize_icon)
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#define current_grab_mode (this->hidden->current_grab_mode)
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#define in_foreground (this->hidden->in_foreground)
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#define client_mode_list (this->hidden->client_mode_list)
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#define keymap (this->hidden->keymap)
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#define current_mods (this->hidden->current_mods)
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#define last_virtual_button (this->hidden->last_virtual_button)
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#define powerConnection (this->hidden->powerConnection)
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#define yuv_idh (this->hidden->yuv_idh)
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#define yuv_matrix (this->hidden->yuv_matrix)
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#define yuv_codec (this->hidden->yuv_codec)
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#define yuv_seq (this->hidden->yuv_seq)
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#define yuv_pixmap (this->hidden->yuv_pixmap)
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#define yuv_data (this->hidden->yuv_data)
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#define yuv_width (this->hidden->yuv_width)
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#define yuv_height (this->hidden->yuv_height)
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#define yuv_port (this->hidden->yuv_port)
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/* 
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    Obscuring code: maximum number of windows above ours (inclusive) 
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    Note: this doesn't work too well in practice and should be
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    phased out when we add OpenGL 2D acceleration. It was never
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    enabled in the first place, so this shouldn't be a problem ;-)
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*/
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#define kMaxWindows 256
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/* Some of the Core Graphics Server API for obscuring code */
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#define kCGSWindowLevelTop          2147483632
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#define kCGSWindowLevelDockIconDrag 500
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#define kCGSWindowLevelDockMenu     101
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#define kCGSWindowLevelMenuIgnore    21
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#define kCGSWindowLevelMenu          20
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#define kCGSWindowLevelDockLabel     12
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#define kCGSWindowLevelDockIcon      11
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#define kCGSWindowLevelDock          10
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#define kCGSWindowLevelUtility        3
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#define kCGSWindowLevelNormal         0
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/* 
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    For completeness; We never use these window levels, they are always below us
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    #define kCGSWindowLevelMBarShadow -20
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    #define kCGSWindowLevelDesktopPicture -2147483647
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    #define kCGSWindowLevelDesktop        -2147483648
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*/
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typedef CGError       CGSError;
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typedef long          CGSWindowCount;
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typedef void *        CGSConnectionID;
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typedef int           CGSWindowID;
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typedef CGSWindowID*  CGSWindowIDList;
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typedef CGWindowLevel CGSWindowLevel;
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typedef NSRect        CGSRect;
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extern CGSConnectionID _CGSDefaultConnection ();
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extern CGSError CGSGetOnScreenWindowList (CGSConnectionID cid,
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                                          CGSConnectionID owner,
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                                          CGSWindowCount listCapacity,
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                                          CGSWindowIDList list,
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                                          CGSWindowCount *listCount);
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extern CGSError CGSGetScreenRectForWindow (CGSConnectionID cid,
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                                           CGSWindowID wid,
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                                           CGSRect *rect);
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extern CGWindowLevel CGSGetWindowLevel (CGSConnectionID cid,
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                                        CGSWindowID wid,
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                                        CGSWindowLevel *level);
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extern CGSError CGSDisplayHWFill (CGDirectDisplayID id, unsigned int x, unsigned int y,
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                                  unsigned int w, unsigned int h, unsigned int color);
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extern CGSError CGSDisplayCanHWFill (CGDirectDisplayID id);
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extern CGSError CGSGetMouseEnabledFlags (CGSConnectionID cid, CGSWindowID wid, int *flags);
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/* Bootstrap functions */
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static int              QZ_Available ();
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static SDL_VideoDevice* QZ_CreateDevice (int device_index);
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static void             QZ_DeleteDevice (SDL_VideoDevice *device);
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/* Initialization, Query, Setup, and Redrawing functions */
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static int          QZ_VideoInit        (_THIS, SDL_PixelFormat *video_format);
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static SDL_Rect**   QZ_ListModes        (_THIS, SDL_PixelFormat *format,
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                                         Uint32 flags);
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static void         QZ_UnsetVideoMode   (_THIS);
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static SDL_Surface* QZ_SetVideoMode     (_THIS, SDL_Surface *current,
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                                         int width, int height, int bpp,
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                                         Uint32 flags);
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static int          QZ_ToggleFullScreen (_THIS, int on);
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static int          QZ_SetColors        (_THIS, int first_color,
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                                         int num_colors, SDL_Color *colors);
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static void         QZ_DirectUpdate     (_THIS, int num_rects, SDL_Rect *rects);
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static int          QZ_LockWindow       (_THIS, SDL_Surface *surface);
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static void         QZ_UnlockWindow     (_THIS, SDL_Surface *surface);
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static void         QZ_UpdateRects      (_THIS, int num_rects, SDL_Rect *rects);
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static void         QZ_VideoQuit        (_THIS);
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/* Hardware surface functions (for fullscreen mode only) */
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static int  QZ_FillHWRect (_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color);
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static int  QZ_LockHWSurface(_THIS, SDL_Surface *surface);
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static void QZ_UnlockHWSurface(_THIS, SDL_Surface *surface);
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static void QZ_FreeHWSurface (_THIS, SDL_Surface *surface);
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/* static int  QZ_FlipHWSurface (_THIS, SDL_Surface *surface); */
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/* Gamma Functions */
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static int QZ_SetGamma     (_THIS, float red, float green, float blue);
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static int QZ_GetGamma     (_THIS, float *red, float *green, float *blue);
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static int QZ_SetGammaRamp (_THIS, Uint16 *ramp);
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static int QZ_GetGammaRamp (_THIS, Uint16 *ramp);
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/* OpenGL functions */
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static int    QZ_SetupOpenGL       (_THIS, int bpp, Uint32 flags);
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static void   QZ_TearDownOpenGL    (_THIS);
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static void*  QZ_GL_GetProcAddress (_THIS, const char *proc);
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static int    QZ_GL_GetAttribute   (_THIS, SDL_GLattr attrib, int* value);
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static int    QZ_GL_MakeCurrent    (_THIS);
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static void   QZ_GL_SwapBuffers    (_THIS);
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static int    QZ_GL_LoadLibrary    (_THIS, const char *location);
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/* Private function to warp the cursor (used internally) */
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static void  QZ_PrivateWarpCursor (_THIS, int x, int y);
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/* Cursor and Mouse functions */
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static void         QZ_FreeWMCursor     (_THIS, WMcursor *cursor);
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static WMcursor*    QZ_CreateWMCursor   (_THIS, Uint8 *data, Uint8 *mask,
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                                         int w, int h, int hot_x, int hot_y);
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static int          QZ_ShowWMCursor     (_THIS, WMcursor *cursor);
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static void         QZ_WarpWMCursor     (_THIS, Uint16 x, Uint16 y);
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static void         QZ_MoveWMCursor     (_THIS, int x, int y);
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static void         QZ_CheckMouseMode   (_THIS);
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/* Event functions */
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static void         QZ_InitOSKeymap     (_THIS);
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static void         QZ_PumpEvents       (_THIS);
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/* Window Manager functions */
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static void QZ_SetCaption        (_THIS, const char *title, const char *icon);
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static void QZ_SetIcon           (_THIS, SDL_Surface *icon, Uint8 *mask);
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static int  QZ_IconifyWindow     (_THIS);
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static SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode);
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/*static int  QZ_GetWMInfo     (_THIS, SDL_SysWMinfo *info);*/
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/* YUV functions */
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static SDL_Overlay* QZ_CreateYUVOverlay (_THIS, int width, int height,
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                                         Uint32 format, SDL_Surface *display);