/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997, 1998, 1999, 2000, 2001 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

*/

/*

@file SDL_QuartzVideo.h

@author Darrell Walisser

@abstract SDL video driver for MacOS 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

- Set the window icon (dock icon when API is available)

- Fix white OpenGL window on minimize

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

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

- Resizeable windows

- 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

- 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)

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

there is a hack around this that helps a bit

*/

#include <Cocoa/Cocoa.h>

#include <OpenGL/OpenGL.h>

#include <Carbon/Carbon.h>

#include "SDL_video.h"

#include "SDL_error.h"

#include "SDL_timer.h"

#include "SDL_syswm.h"

#include "SDL_sysvideo.h"

#include "SDL_pixels_c.h"

#include "SDL_events_c.h"

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

/* We need to do this in order to check for errors */

@interface NSOpenGLContext (CGLContextAccess)

- (CGLContextObj) cglContext;

@end

@implementation NSOpenGLContext (CGLContextAccess)

- (CGLContextObj) cglContext;

{

return _contextAuxiliary;

}

@end

/* Structure for rez switch gamma fades */

/* We can hide the monitor flicker by setting the gamma tables to 0 */

#define QZ_GAMMA_TABLE_SIZE 256

typedef struct {

CGGammaValue red[QZ_GAMMA_TABLE_SIZE];

CGGammaValue green[QZ_GAMMA_TABLE_SIZE];

CGGammaValue blue[QZ_GAMMA_TABLE_SIZE];

} SDL_QuartzGammaTable;

/* 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; /* object that represents an OpenGL rendering context */

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

Uint32 flags; /* flags for 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 into this view */

} 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)

/* Obscuring code: maximum number of windows above ours (inclusive) */

#define kMaxWindows 256

/* Some of the Core Graphics Server API for obscuring code */

#define kCGSWindowLevelTop 2147483632

#define kCGSWindowLevelDockIconDrag 500

#define kCGSWindowLevelDockMenu 101

#define kCGSWindowLevelMenuIgnore 21

#define kCGSWindowLevelMenu 20

#define kCGSWindowLevelDockLabel 12

#define kCGSWindowLevelDockIcon 11

#define kCGSWindowLevelDock 10

#define kCGSWindowLevelUtility 3

#define kCGSWindowLevelNormal 0

/* For completeness; We never use these window levels, they are always below us

#define kCGSWindowLevelMBarShadow -20

#define kCGSWindowLevelDesktopPicture -2147483647

#define kCGSWindowLevelDesktop -2147483648

*/

typedef CGError CGSError;

typedef long CGSWindowCount;

typedef void * CGSConnectionID;

typedef int CGSWindowID;

typedef CGSWindowID* CGSWindowIDList;

typedef CGWindowLevel CGSWindowLevel;

typedef NSRect CGSRect;

extern CGSConnectionID _CGSDefaultConnection ();

extern CGSError CGSGetOnScreenWindowList (CGSConnectionID cid,

CGSConnectionID owner,

CGSWindowCount listCapacity,

CGSWindowIDList list,

CGSWindowCount *listCount);

extern CGSError CGSGetScreenRectForWindow (CGSConnectionID cid,

CGSWindowID wid,

CGSRect *rect);

extern CGWindowLevel CGSGetWindowLevel (CGSConnectionID cid,

CGSWindowID wid,

CGSWindowLevel *level);

extern CGSError CGSDisplayHWFill (CGDirectDisplayID id, unsigned int x, unsigned int y,

unsigned int w, unsigned int h, unsigned int color);

extern CGSError CGSDisplayCanHWFill (CGDirectDisplayID id);

extern CGSError CGSGetMouseEnabledFlags (CGSConnectionID cid, CGSWindowID wid, int *flags);

/* Bootstrap functions */

static int QZ_Available ();

static SDL_VideoDevice* QZ_CreateDevice (int device_index);

static void QZ_DeleteDevice (SDL_VideoDevice *device);

/* Initialization, Query, Setup, and Redrawing functions */

static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format);

static SDL_Rect** QZ_ListModes (_THIS, SDL_PixelFormat *format,

Uint32 flags);

static void QZ_UnsetVideoMode (_THIS);

static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current,

int width, int height, int bpp,

Uint32 flags);

static int QZ_ToggleFullScreen (_THIS, int on);

static int QZ_SetColors (_THIS, int first_color,

int num_colors, SDL_Color *colors);

static void QZ_DirectUpdate (_THIS, int num_rects, SDL_Rect *rects);

static void QZ_UpdateRects (_THIS, int num_rects, SDL_Rect *rects);

static void QZ_VideoQuit (_THIS);

/* Hardware surface functions (for fullscreen mode only) */

static int QZ_FillHWRect (_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color);

static int QZ_LockHWSurface(_THIS, SDL_Surface *surface);

static void QZ_UnlockHWSurface(_THIS, SDL_Surface *surface);

static void QZ_FreeHWSurface (_THIS, SDL_Surface *surface);

/* static int QZ_FlipHWSurface (_THIS, SDL_Surface *surface); */

/* Gamma Functions */

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

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

static int QZ_SetGammaRamp (_THIS, Uint16 *ramp);

static int QZ_GetGammaRamp (_THIS, Uint16 *ramp);

/* OpenGL functions */

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

static void QZ_TearDownOpenGL (_THIS);

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

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

static int QZ_GL_MakeCurrent (_THIS);

static void QZ_GL_SwapBuffers (_THIS);

static int QZ_GL_LoadLibrary (_THIS, const char *location);

/* Private function to warp the cursor (used internally) */

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

/* Cursor and Mouse functions */

static void QZ_FreeWMCursor (_THIS, WMcursor *cursor);

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

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

static int QZ_ShowWMCursor (_THIS, WMcursor *cursor);

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

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

static void QZ_CheckMouseMode (_THIS);

/* Event functions */

static void QZ_InitOSKeymap (_THIS);

static void QZ_PumpEvents (_THIS);

/* Window Manager functions */

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

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

static int QZ_IconifyWindow (_THIS);

static SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode);

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