src/video/quartz/SDL_QuartzVideo.h
author Sam Lantinga <slouken@libsdl.org>
Mon, 10 Jul 2006 21:04:37 +0000
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997-2003  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 <QuickTime/QuickTime.h>
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#include <OpenGL/CGLTypes.h>    /* For CGLContextObj */
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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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/* 
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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) - (CGLContextObj) cglContext;
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@end
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/* Main driver structure to store required state information */
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     typedef struct SDL_PrivateVideoData
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     {
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         CGDirectDisplayID
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             display;           /* 0 == main display (only support single display) */
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         CFDictionaryRef
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             mode;              /* current mode of the display */
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         CFDictionaryRef
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             save_mode;         /* original mode of the display */
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         CFArrayRef
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             mode_list;         /* list of available fullscreen modes */
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         CGDirectPaletteRef
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             palette;           /* palette of an 8-bit display */
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         NSOpenGLContext *
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             gl_context;        /* OpenGL rendering context */
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         Uint32
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             width,
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             height,
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             bpp;               /* frequently used data about the display */
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         Uint32
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             flags;             /* flags for current mode, for teardown purposes */
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         Uint32
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             video_set;         /* boolean; indicates if video was set correctly */
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         Uint32
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             warp_flag;         /* boolean; notify to event loop that a warp just occured */
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         Uint32
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             warp_ticks;        /* timestamp when the warp occured */
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         NSWindow *
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             window;            /* Cocoa window to implement the SDL window */
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         NSQuickDrawView *
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             view;              /* the window's view; draw 2D and OpenGL into this view */
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         SDL_Surface *
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             resize_icon;       /* icon for the resize badge, we have to draw it by hand */
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         SDL_GrabMode
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             current_grab_mode; /* default value is SDL_GRAB_OFF */
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         SDL_Rect **
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             client_mode_list;  /* resolution list to pass back to client */
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         SDLKey
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             keymap[256];       /* Mac OS X to SDL key mapping */
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         Uint32
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             current_mods;      /* current keyboard modifiers, to track modifier state */
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         Uint32
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             last_virtual_button;       /* last virtual mouse button pressed */
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         io_connect_t
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             power_connection;  /* used with IOKit to detect wake from sleep */
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         Uint8
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             expect_mouse_up;   /* used to determine when to send mouse up events */
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         Uint8
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             grab_state;        /* used to manage grab behavior */
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         NSPoint
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             cursor_loc;        /* saved cursor coords, for activate/deactivate when grabbed */
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         BOOL
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             cursor_should_be_visible;  /* tells if cursor is supposed to be visible (SDL_ShowCursor) */
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         BOOL
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             cursor_visible;    /* tells if cursor is *actually* visible or not */
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         Uint8 *
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             sw_buffers[2];     /* pointers to the two software buffers for double-buffer emulation */
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         SDL_Thread *
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             thread;            /* thread for async updates to the screen */
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         SDL_sem *
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         sem1, *
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             sem2;              /* synchronization for async screen updates */
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         Uint8 *
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             current_buffer;    /* the buffer being copied to the screen */
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         BOOL
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             quit_thread;       /* used to quit the async blitting thread */
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         SInt32
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             system_version;    /* used to dis-/enable workarounds depending on the system version */
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         ImageDescriptionHandle
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             yuv_idh;
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         MatrixRecordPtr
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             yuv_matrix;
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         DecompressorComponent
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             yuv_codec;
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         ImageSequence
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             yuv_seq;
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         PlanarPixmapInfoYUV420 *
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             yuv_pixmap;
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         Sint16
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             yuv_width,
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             yuv_height;
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         CGrafPtr
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             yuv_port;
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   162
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         void *
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             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 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 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 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 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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     {
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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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     {
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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
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     QZ_SetGamma(_THIS, float red, float green, float blue);
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     int
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     QZ_GetGamma(_THIS, float *red, float *green, float *blue);
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     int
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     QZ_SetGammaRamp(_THIS, Uint16 * ramp);
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     int
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     QZ_GetGammaRamp(_THIS, Uint16 * ramp);
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/* OpenGL functions */
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     int
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     QZ_SetupOpenGL(_THIS, int bpp, Uint32 flags);
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     void
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     QZ_TearDownOpenGL(_THIS);
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     void *
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     QZ_GL_GetProcAddress(_THIS, const char *proc);
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     int
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     QZ_GL_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
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     int
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     QZ_GL_MakeCurrent(_THIS);
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     void
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     QZ_GL_SwapBuffers(_THIS);
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     int
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     QZ_GL_LoadLibrary(_THIS, const char *location);
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/* Cursor and Mouse functions */
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     void
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     QZ_FreeWMCursor(_THIS, WMcursor * cursor);
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     WMcursor *
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     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
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     QZ_ShowWMCursor(_THIS, WMcursor * cursor);
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     void
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     QZ_WarpWMCursor(_THIS, Uint16 x, Uint16 y);
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     void
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     QZ_MoveWMCursor(_THIS, int x, int y);
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     void
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     QZ_CheckMouseMode(_THIS);
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     void
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     QZ_UpdateMouse(_THIS);
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/* Event functions */
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     void
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     QZ_InitOSKeymap(_THIS);
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     void
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     QZ_PumpEvents(_THIS);
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/* Window Manager functions */
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     void
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     QZ_SetCaption(_THIS, const char *title, const char *icon);
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     void
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     QZ_SetIcon(_THIS, SDL_Surface * icon, Uint8 * mask);
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     int
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     QZ_IconifyWindow(_THIS);
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SDL_GrabMode
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QZ_GrabInput(_THIS, SDL_GrabMode grab_mode);
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/*int          QZ_GetWMInfo        (_THIS, SDL_SysWMinfo *info);*/
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/* YUV functions */
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     SDL_Overlay *QZ_CreateYUVOverlay(_THIS, int width, int height,
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                                      Uint32 format, SDL_Surface * display);
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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_ShowMouse(_THIS);
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     void QZ_HideMouse(_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
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QZ_IsMouseInWindow(_THIS);
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     void QZ_DoActivate(_THIS);
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     void QZ_DoDeactivate(_THIS);
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/* vi: set ts=4 sw=4 expandtab: */