src/video/quartz/SDL_QuartzVideo.h
author Sam Lantinga <slouken@lokigames.com>
Thu, 07 Jun 2001 14:28:11 +0000
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998, 1999, 2000, 2001  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@devolution.com
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*/
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/*	
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    @file   SDL_QuartzVideo.h
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    @author Darrell Walisser
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    @abstract SDL video driver for MacOS 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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        - Set the window icon (dock icon when API is available)
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        - Avoid erasing window on minimize, or disable minimize
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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
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        - Retained windows don't draw their title bar quite right (OS Bug)
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        - Should I do depth switching for windowed modes?
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        - Launch times are slow, maybe prebinding will help
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        - Direct framebuffer access has some artifacts, maybe a driver issue
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        - Cursor in 8 bit modes is screwy
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        - Modifier + mouse-down maps alternate mouse button, but if modifier is released
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           before mouse button, corresponding mouse-up event is not generated.
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        - Clicking in content activates app, but doesn't generate the activate event,
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          and subsequent switches generate no activate/deactivate events! (OS Bug I hope)
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*/
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#include <ApplicationServices/ApplicationServices.h>
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#include <OpenGL/OpenGL.h>
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#include <Cocoa/Cocoa.h>
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#include <Carbon/Carbon.h>
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#include "SDL_video.h"
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#include "SDL_error.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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/* This is a workaround to directly access NSOpenGLContext's CGL context */
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/* We need to do this in order to check for errors */
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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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typedef struct SDL_PrivateVideoData {
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    CGDirectDisplayID  display; /* 0 == main display */
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    CFDictionaryRef    mode;
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    CFDictionaryRef    save_mode;
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    CFArrayRef         mode_list;
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    CGDirectPaletteRef palette;
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    NSOpenGLContext    *gl_context;
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    int                width, height, bpp;
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    Uint32             flags;
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    /* Window-only fields */
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    NSWindow        *window;
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    NSQuickDrawView *view;
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    NSString        *title;
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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 glcontext (this->hidden->glcontext)
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#define objc_video (this->hidden->objc_video)
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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 window (this->hidden->window)
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#define windowView (this->hidden->view)
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#define windowTitle (this->hidden->title)
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/* Interface for hardware fill not (yet) in the public API */
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int 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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int CGSDisplayCanHWFill (CGDirectDisplayID id);
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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 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 fullscreen, int h, 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);*/