src/video/quartz/SDL_QuartzVideo.h
author Ryan C. Gordon <icculus@icculus.org>
Mon, 21 Sep 2009 06:08:23 +0000
branchSDL-1.2
changeset 4204 976bc19f8f6b
parent 4159 a1b03ba2fcd0
child 5628 f78f29271dfd
permissions -rw-r--r--
1.2 Quartz video: Ripped out QuickDraw and QuickTime. Now we use the software path for YUV, and CoreGraphics for 2D stuff. There are several other 10.6 fixes in here, too...now we can build a 64-bit SDL for Snow Leopard!
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2009  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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#include "SDL_config.h"
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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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        - 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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/* Needs to be first, so QuickTime.h doesn't include glext.h (10.4) */
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#include "SDL_opengl.h"
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#include <Cocoa/Cocoa.h>
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#include <Carbon/Carbon.h>
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#include <OpenGL/OpenGL.h>	/* For CGL functions and types */
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#include <IOKit/IOKitLib.h>	/* For powersave handling */
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#include <pthread.h>
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#include "SDL_thread.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_loadso.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 "../../events/SDL_events_c.h"
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#ifdef __powerpc__
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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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    Please note this is only used on PowerPC (Intel Macs are guaranteed to
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    have a better API for this, since it showed up in Mac OS X 10.3).
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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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#endif
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/* use this to get the CGLContext; it handles Cocoa interface changes. */
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CGLContextObj QZ_GetCGLContextObj(NSOpenGLContext *nsctx);
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/* Main driver structure to store required state information */
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typedef struct SDL_PrivateVideoData {
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    BOOL               allow_screensaver;  /* 0 == disable screensaver */
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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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    NSView             *view;              /* the window's view; draw 2D and OpenGL into this view */
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    CGContextRef       cg_context;         /* CoreGraphics rendering context */
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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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    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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    NSText             *field_edit;        /* a field editor for keyboard composition processing */
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    Uint32             last_virtual_button;/* last virtual mouse button pressed */
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    io_connect_t       power_connection;   /* used with IOKit to detect wake from sleep */
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    Uint8              expect_mouse_up;    /* used to determine when to send mouse up events */
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    Uint8              grab_state;         /* used to manage grab behavior */
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    NSPoint            cursor_loc;         /* saved cursor coords, for activate/deactivate when grabbed */
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    BOOL               cursor_should_be_visible;     /* tells if cursor is supposed to be visible (SDL_ShowCursor) */
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    BOOL               cursor_visible;     /* tells if cursor is *actually* visible or not */
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    Uint8*             sw_buffers[2];      /* pointers to the two software buffers for double-buffer emulation */
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    SDL_Thread         *thread;            /* thread for async updates to the screen */
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    SDL_sem            *sem1, *sem2;       /* synchronization for async screen updates */
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    Uint8              *current_buffer;    /* the buffer being copied to the screen */
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    BOOL               quit_thread;        /* used to quit the async blitting thread */
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    SInt32             system_version;     /* used to dis-/enable workarounds depending on the system version */
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    void *opengl_library;    /* dynamically loaded OpenGL library. */
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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 allow_screensaver (this->hidden->allow_screensaver)
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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 cg_context (this->hidden->cg_context)
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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 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 field_edit (this->hidden->field_edit)
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#define last_virtual_button (this->hidden->last_virtual_button)
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#define power_connection (this->hidden->power_connection)
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#define expect_mouse_up (this->hidden->expect_mouse_up)
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#define grab_state (this->hidden->grab_state)
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#define cursor_loc (this->hidden->cursor_loc)
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#define cursor_should_be_visible (this->hidden->cursor_should_be_visible)
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#define cursor_visible (this->hidden->cursor_visible)
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#define sw_buffers (this->hidden->sw_buffers)
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#define sw_contexts (this->hidden->sw_contexts)
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#define thread (this->hidden->thread)
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#define sem1 (this->hidden->sem1)
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#define sem2 (this->hidden->sem2)
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#define current_buffer (this->hidden->current_buffer)
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#define quit_thread (this->hidden->quit_thread)
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#define system_version (this->hidden->system_version)
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#define opengl_library (this->hidden->opengl_library)
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/* grab states - the input is in one of these states */
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enum {
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    QZ_UNGRABBED = 0,
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    QZ_VISIBLE_GRAB,
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    QZ_INVISIBLE_GRAB
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};
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/* grab actions - these can change the grabbed state */
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enum {
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    QZ_ENABLE_GRAB = 0,
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    QZ_DISABLE_GRAB,
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    QZ_HIDECURSOR,
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    QZ_SHOWCURSOR
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};
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/* Gamma Functions */
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int    QZ_SetGamma          (_THIS, float red, float green, float blue);
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int    QZ_GetGamma          (_THIS, float *red, float *green, float *blue);
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int    QZ_SetGammaRamp      (_THIS, Uint16 *ramp);
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int    QZ_GetGammaRamp      (_THIS, Uint16 *ramp);
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/* OpenGL functions */
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int    QZ_SetupOpenGL       (_THIS, int bpp, Uint32 flags);
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void   QZ_TearDownOpenGL    (_THIS);
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void*  QZ_GL_GetProcAddress (_THIS, const char *proc);
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int    QZ_GL_GetAttribute   (_THIS, SDL_GLattr attrib, int* value);
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int    QZ_GL_MakeCurrent    (_THIS);
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void   QZ_GL_SwapBuffers    (_THIS);
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int    QZ_GL_LoadLibrary    (_THIS, const char *location);
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/* Cursor and Mouse functions */
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void         QZ_FreeWMCursor     (_THIS, WMcursor *cursor);
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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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int          QZ_ShowWMCursor     (_THIS, WMcursor *cursor);
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void         QZ_WarpWMCursor     (_THIS, Uint16 x, Uint16 y);
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void         QZ_MoveWMCursor     (_THIS, int x, int y);
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void         QZ_CheckMouseMode   (_THIS);
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void         QZ_UpdateMouse      (_THIS);
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/* Event functions */
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void         QZ_InitOSKeymap     (_THIS);
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void         QZ_PumpEvents       (_THIS);
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/* Window Manager functions */
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void         QZ_SetCaption       (_THIS, const char *title, const char *icon);
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void         QZ_SetIcon          (_THIS, SDL_Surface *icon, Uint8 *mask);
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int          QZ_IconifyWindow    (_THIS);
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SDL_GrabMode QZ_GrabInput        (_THIS, SDL_GrabMode grab_mode);
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/*int          QZ_GetWMInfo        (_THIS, SDL_SysWMinfo *info);*/
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/* Private functions (used internally) */
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void         QZ_PrivateWarpCursor (_THIS, int x, int y);
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void         QZ_ChangeGrabState (_THIS, int action);
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void         QZ_RegisterForSleepNotifications (_THIS);
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void         QZ_PrivateGlobalToLocal (_THIS, NSPoint *p);
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void         QZ_PrivateCocoaToSDL (_THIS, NSPoint *p);
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BOOL         QZ_IsMouseInWindow (_THIS);
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void         QZ_DoActivate (_THIS);
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void         QZ_DoDeactivate (_THIS);