/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2003 Sam Lantinga

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with this library; if not, write to the Free

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Sam Lantinga

slouken@libsdl.org

*/

#include "SDL_config.h"

/*

@file SDL_QuartzVideo.h

@author Darrell Walisser, Max Horn, et al.

@abstract SDL video driver for Mac OS X.

@discussion

TODO

- Hardware Cursor support with NSCursor instead of Carbon

- Keyboard repeat/mouse speed adjust (if needed)

- Multiple monitor support (currently only main display)

- Accelerated blitting support

- Fix white OpenGL window on minimize (fixed) (update: broken again on 10.2)

- Find out what events should be sent/ignored if window is minimized

- Find a way to deal with external resolution/depth switch while app is running

- Check accuracy of QZ_SetGamma()

Problems:

- OGL not working in full screen with software renderer

- SetColors sets palette correctly but clears framebuffer

- Crash in CG after several mode switches (I think this has been fixed)

- Retained windows don't draw their title bar quite right (OS Bug) (not using retained windows)

- Cursor in 8 bit modes is screwy (might just be Radeon PCI bug) (update: not just Radeon)

- Warping cursor delays mouse events for a fraction of a second,

there is a hack around this that helps a bit

*/

/* Needs to be first, so QuickTime.h doesn't include glext.h (10.4) */

#include "SDL_opengl.h"

#include <Cocoa/Cocoa.h>

#include <Carbon/Carbon.h>

#include <QuickTime/QuickTime.h>

#include <OpenGL/OpenGL.h> /* For CGL functions and types */

#include <IOKit/IOKitLib.h> /* For powersave handling */

#include <pthread.h>

#include "SDL_thread.h"

#include "SDL_video.h"

#include "SDL_error.h"

#include "SDL_timer.h"

#include "SDL_loadso.h"

#include "SDL_syswm.h"

#include "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "../../events/SDL_events_c.h"

/*

This is a workaround to directly access NSOpenGLContext's CGL context

We need this to check for errors NSOpenGLContext doesn't support

*/

@interface NSOpenGLContext (CGLContextAccess)

- (CGLContextObj) cglContext;

@end

/* Main driver structure to store required state information */

typedef struct SDL_PrivateVideoData {

CGDirectDisplayID display; /* 0 == main display (only support single display) */

CFDictionaryRef mode; /* current mode of the display */

CFDictionaryRef save_mode; /* original mode of the display */

CFArrayRef mode_list; /* list of available fullscreen modes */

CGDirectPaletteRef palette; /* palette of an 8-bit display */

NSOpenGLContext *gl_context; /* OpenGL rendering context */

Uint32 width, height, bpp; /* frequently used data about the display */

Uint32 flags; /* flags for current mode, for teardown purposes */

Uint32 video_set; /* boolean; indicates if video was set correctly */

Uint32 warp_flag; /* boolean; notify to event loop that a warp just occured */

Uint32 warp_ticks; /* timestamp when the warp occured */

NSWindow *window; /* Cocoa window to implement the SDL window */

NSQuickDrawView *view; /* the window's view; draw 2D and OpenGL into this view */

SDL_Surface *resize_icon; /* icon for the resize badge, we have to draw it by hand */

SDL_GrabMode current_grab_mode; /* default value is SDL_GRAB_OFF */

SDL_Rect **client_mode_list; /* resolution list to pass back to client */

SDLKey keymap[256]; /* Mac OS X to SDL key mapping */

Uint32 current_mods; /* current keyboard modifiers, to track modifier state */

Uint32 last_virtual_button;/* last virtual mouse button pressed */

io_connect_t power_connection; /* used with IOKit to detect wake from sleep */

Uint8 expect_mouse_up; /* used to determine when to send mouse up events */

Uint8 grab_state; /* used to manage grab behavior */

NSPoint cursor_loc; /* saved cursor coords, for activate/deactivate when grabbed */

BOOL cursor_should_be_visible; /* tells if cursor is supposed to be visible (SDL_ShowCursor) */

BOOL cursor_visible; /* tells if cursor is *actually* visible or not */

Uint8* sw_buffers[2]; /* pointers to the two software buffers for double-buffer emulation */

SDL_Thread *thread; /* thread for async updates to the screen */

SDL_sem *sem1, *sem2; /* synchronization for async screen updates */

Uint8 *current_buffer; /* the buffer being copied to the screen */

BOOL quit_thread; /* used to quit the async blitting thread */

SInt32 system_version; /* used to dis-/enable workarounds depending on the system version */

ImageDescriptionHandle yuv_idh;

MatrixRecordPtr yuv_matrix;

DecompressorComponent yuv_codec;

ImageSequence yuv_seq;

PlanarPixmapInfoYUV420 *yuv_pixmap;

Sint16 yuv_width, yuv_height;

CGrafPtr yuv_port;

void *opengl_library; /* dynamically loaded OpenGL library. */

} SDL_PrivateVideoData;

#define _THIS SDL_VideoDevice *this

#define display_id (this->hidden->display)

#define mode (this->hidden->mode)

#define save_mode (this->hidden->save_mode)

#define mode_list (this->hidden->mode_list)

#define palette (this->hidden->palette)

#define gl_context (this->hidden->gl_context)

#define device_width (this->hidden->width)

#define device_height (this->hidden->height)

#define device_bpp (this->hidden->bpp)

#define mode_flags (this->hidden->flags)

#define qz_window (this->hidden->window)

#define window_view (this->hidden->view)

#define video_set (this->hidden->video_set)

#define warp_ticks (this->hidden->warp_ticks)

#define warp_flag (this->hidden->warp_flag)

#define resize_icon (this->hidden->resize_icon)

#define current_grab_mode (this->hidden->current_grab_mode)

#define client_mode_list (this->hidden->client_mode_list)

#define keymap (this->hidden->keymap)

#define current_mods (this->hidden->current_mods)

#define last_virtual_button (this->hidden->last_virtual_button)

#define power_connection (this->hidden->power_connection)

#define expect_mouse_up (this->hidden->expect_mouse_up)

#define grab_state (this->hidden->grab_state)

#define cursor_loc (this->hidden->cursor_loc)

#define cursor_should_be_visible (this->hidden->cursor_should_be_visible)

#define cursor_visible (this->hidden->cursor_visible)

#define sw_buffers (this->hidden->sw_buffers)

#define thread (this->hidden->thread)

#define sem1 (this->hidden->sem1)

#define sem2 (this->hidden->sem2)

#define current_buffer (this->hidden->current_buffer)

#define quit_thread (this->hidden->quit_thread)

#define system_version (this->hidden->system_version)

#define opengl_library (this->hidden->opengl_library)

/* grab states - the input is in one of these states */

enum {

QZ_UNGRABBED = 0,

QZ_VISIBLE_GRAB,

QZ_INVISIBLE_GRAB

};

/* grab actions - these can change the grabbed state */

enum {

QZ_ENABLE_GRAB = 0,

QZ_DISABLE_GRAB,

QZ_HIDECURSOR,

QZ_SHOWCURSOR

};

/* Gamma Functions */

int QZ_SetGamma (_THIS, float red, float green, float blue);

int QZ_GetGamma (_THIS, float *red, float *green, float *blue);

int QZ_SetGammaRamp (_THIS, Uint16 *ramp);

int QZ_GetGammaRamp (_THIS, Uint16 *ramp);

/* OpenGL functions */

int QZ_SetupOpenGL (_THIS, int bpp, Uint32 flags);

void QZ_TearDownOpenGL (_THIS);

void* QZ_GL_GetProcAddress (_THIS, const char *proc);

int QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value);

int QZ_GL_MakeCurrent (_THIS);

void QZ_GL_SwapBuffers (_THIS);

int QZ_GL_LoadLibrary (_THIS, const char *location);

/* Cursor and Mouse functions */

void QZ_FreeWMCursor (_THIS, WMcursor *cursor);

WMcursor* QZ_CreateWMCursor (_THIS, Uint8 *data, Uint8 *mask,

int w, int h, int hot_x, int hot_y);

int QZ_ShowWMCursor (_THIS, WMcursor *cursor);

void QZ_WarpWMCursor (_THIS, Uint16 x, Uint16 y);

void QZ_MoveWMCursor (_THIS, int x, int y);

void QZ_CheckMouseMode (_THIS);

void QZ_UpdateMouse (_THIS);

/* Event functions */

void QZ_InitOSKeymap (_THIS);

void QZ_PumpEvents (_THIS);

/* Window Manager functions */

void QZ_SetCaption (_THIS, const char *title, const char *icon);

void QZ_SetIcon (_THIS, SDL_Surface *icon, Uint8 *mask);

int QZ_IconifyWindow (_THIS);

SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode);

/*int QZ_GetWMInfo (_THIS, SDL_SysWMinfo *info);*/

/* YUV functions */

SDL_Overlay* QZ_CreateYUVOverlay (_THIS, int width, int height,

Uint32 format, SDL_Surface *display);

/* Private functions (used internally) */

void QZ_PrivateWarpCursor (_THIS, int x, int y);

void QZ_ChangeGrabState (_THIS, int action);

void QZ_RegisterForSleepNotifications (_THIS);

void QZ_ShowMouse (_THIS);

void QZ_HideMouse (_THIS);

void QZ_PrivateGlobalToLocal (_THIS, NSPoint *p);

void QZ_PrivateCocoaToSDL (_THIS, NSPoint *p);

BOOL QZ_IsMouseInWindow (_THIS);

void QZ_DoActivate (_THIS);

void QZ_DoDeactivate (_THIS);