SDL_QuartzVideo.m
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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
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
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slouken@libsdl.org
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#include "SDL_config.h"
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#include "SDL_QuartzVideo.h"
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#include "SDL_QuartzWindow.h"
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#ifdef __powerpc__ /* I'm gambling they fixed this by 10.4. --ryan. */
/*
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Add methods to get at private members of NSScreen.
Since there is a bug in Apple's screen switching code
that does not update this variable when switching
to fullscreen, we'll set it manually (but only for the
main screen).
*/
@interface NSScreen (NSScreenAccess)
- (void) setFrame:(NSRect)frame;
@end
@implementation NSScreen (NSScreenAccess)
- (void) setFrame:(NSRect)frame;
{
_frame = frame;
}
@end
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static inline void QZ_SetFrame(NSScreen *nsscreen, NSRect frame)
{
[nsscreen setFrame:frame];
}
#else
static inline void QZ_SetFrame(NSScreen *nsscreen, NSRect frame)
{
}
#endif
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@interface SDLTranslatorResponder : NSTextView
{
}
- (void) doCommandBySelector:(SEL)myselector;
@end
@implementation SDLTranslatorResponder
- (void) doCommandBySelector:(SEL) myselector {}
@end
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/* absent in 10.3.9. */
CG_EXTERN CGImageRef CGBitmapContextCreateImage (CGContextRef);
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/* 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);
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static void QZ_UnsetVideoMode (_THIS, BOOL to_desktop);
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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 int QZ_LockDoubleBuffer (_THIS, SDL_Surface *surface);
static void QZ_UnlockDoubleBuffer (_THIS, SDL_Surface *surface);
static int QZ_ThreadFlip (_THIS);
static int QZ_FlipDoubleBuffer (_THIS, SDL_Surface *surface);
static void QZ_DoubleBufferUpdate (_THIS, int num_rects, SDL_Rect *rects);
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) */
#if 0 /* Not used (apparently, it's really slow) */
static int QZ_FillHWRect (_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color);
#endif
static int QZ_LockHWSurface(_THIS, SDL_Surface *surface);
static void QZ_UnlockHWSurface(_THIS, SDL_Surface *surface);
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static int QZ_AllocHWSurface(_THIS, SDL_Surface *surface);
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static void QZ_FreeHWSurface (_THIS, SDL_Surface *surface);
/* static int QZ_FlipHWSurface (_THIS, SDL_Surface *surface); */
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/* Bootstrap binding, enables entry point into the driver */
VideoBootStrap QZ_bootstrap = {
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"Quartz", "Mac OS X CoreGraphics", QZ_Available, QZ_CreateDevice
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/* Bootstrap functions */
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static int QZ_Available ()
{
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return 1;
}
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static SDL_VideoDevice* QZ_CreateDevice (int device_index)
{
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#pragma unused (device_index)
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SDL_VideoDevice *device;
SDL_PrivateVideoData *hidden;
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device = (SDL_VideoDevice*) SDL_malloc (sizeof (*device) );
hidden = (SDL_PrivateVideoData*) SDL_malloc (sizeof (*hidden) );
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if (device == NULL || hidden == NULL)
SDL_OutOfMemory ();
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SDL_memset (device, 0, sizeof (*device) );
SDL_memset (hidden, 0, sizeof (*hidden) );
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device->hidden = hidden;
device->VideoInit = QZ_VideoInit;
device->ListModes = QZ_ListModes;
device->SetVideoMode = QZ_SetVideoMode;
device->ToggleFullScreen = QZ_ToggleFullScreen;
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device->UpdateMouse = QZ_UpdateMouse;
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device->SetColors = QZ_SetColors;
/* device->UpdateRects = QZ_UpdateRects; this is determined by SetVideoMode() */
device->VideoQuit = QZ_VideoQuit;
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device->LockHWSurface = QZ_LockHWSurface;
device->UnlockHWSurface = QZ_UnlockHWSurface;
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device->AllocHWSurface = QZ_AllocHWSurface;
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device->FreeHWSurface = QZ_FreeHWSurface;
/* device->FlipHWSurface = QZ_FlipHWSurface */;
device->SetGamma = QZ_SetGamma;
device->GetGamma = QZ_GetGamma;
device->SetGammaRamp = QZ_SetGammaRamp;
device->GetGammaRamp = QZ_GetGammaRamp;
device->GL_GetProcAddress = QZ_GL_GetProcAddress;
device->GL_GetAttribute = QZ_GL_GetAttribute;
device->GL_MakeCurrent = QZ_GL_MakeCurrent;
device->GL_SwapBuffers = QZ_GL_SwapBuffers;
device->GL_LoadLibrary = QZ_GL_LoadLibrary;
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device->FreeWMCursor = QZ_FreeWMCursor;
device->CreateWMCursor = QZ_CreateWMCursor;
device->ShowWMCursor = QZ_ShowWMCursor;
device->WarpWMCursor = QZ_WarpWMCursor;
device->MoveWMCursor = QZ_MoveWMCursor;
device->CheckMouseMode = QZ_CheckMouseMode;
device->InitOSKeymap = QZ_InitOSKeymap;
device->PumpEvents = QZ_PumpEvents;
device->SetCaption = QZ_SetCaption;
device->SetIcon = QZ_SetIcon;
device->IconifyWindow = QZ_IconifyWindow;
/*device->GetWMInfo = QZ_GetWMInfo;*/
device->GrabInput = QZ_GrabInput;
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/*
* This is a big hassle, needing QuickDraw and QuickTime on older
* systems, and god knows what on 10.6, so we immediately fail here,
* which causes SDL to make an RGB surface and manage the YUV overlay
* in software. Sorry. Use SDL 1.3 if you want YUV rendering in a pixel
* shader. :)
*/
/*device->CreateYUVOverlay = QZ_CreateYUVOverlay;*/
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device->free = QZ_DeleteDevice;
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return device;
}
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static void QZ_DeleteDevice (SDL_VideoDevice *device)
{
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SDL_free (device->hidden);
SDL_free (device);
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static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format)
{
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NSRect r = NSMakeRect(0.0, 0.0, 0.0, 0.0);
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const char *env = NULL;
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/* Initialize the video settings; this data persists between mode switches */
display_id = kCGDirectMainDisplay;
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#if 0 /* The mouse event code needs to take this into account... */
env = getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
if ( env ) {
int monitor = SDL_atoi(env);
CGDirectDisplayID activeDspys [3];
CGDisplayCount dspyCnt;
CGGetActiveDisplayList (3, activeDspys, &dspyCnt);
if ( monitor >= 0 && monitor < dspyCnt ) {
display_id = activeDspys[monitor];
}
}
#endif
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save_mode = CGDisplayCurrentMode (display_id);
mode_list = CGDisplayAvailableModes (display_id);
palette = CGPaletteCreateDefaultColorPalette ();
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/* Allow environment override of screensaver disable. */
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env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
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if ( env ) {
allow_screensaver = SDL_atoi(env);
} else {
#ifdef SDL_VIDEO_DISABLE_SCREENSAVER
allow_screensaver = 0;
#else
allow_screensaver = 1;
#endif
}
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/* Gather some information that is useful to know about the display */
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayBitsPerPixel),
kCFNumberSInt32Type, &device_bpp);
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CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayWidth),
kCFNumberSInt32Type, &device_width);
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayHeight),
kCFNumberSInt32Type, &device_height);
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/* Determine the current screen size */
this->info.current_w = device_width;
this->info.current_h = device_height;
/* Determine the default screen depth */
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video_format->BitsPerPixel = device_bpp;
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/* Set misc globals */
current_grab_mode = SDL_GRAB_OFF;
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cursor_should_be_visible = YES;
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cursor_visible = YES;
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current_mods = 0;
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field_edit = [[SDLTranslatorResponder alloc] initWithFrame:r];
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if ( Gestalt(gestaltSystemVersion, &system_version) != noErr )
system_version = 0;
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/* register for sleep notifications so wake from sleep generates SDL_VIDEOEXPOSE */
QZ_RegisterForSleepNotifications (this);
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/* Fill in some window manager capabilities */
this->info.wm_available = 1;
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return 0;
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static SDL_Rect** QZ_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags)
{
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CFIndex num_modes;
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CFIndex i;
int list_size = 0;
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/* Any windowed mode is acceptable */
if ( (flags & SDL_FULLSCREEN) == 0 )
return (SDL_Rect**)-1;
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/* Free memory from previous call, if any */
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if ( client_mode_list != NULL ) {
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int i;
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for (i = 0; client_mode_list[i] != NULL; i++)
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SDL_free (client_mode_list[i]);
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SDL_free (client_mode_list);
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client_mode_list = NULL;
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num_modes = CFArrayGetCount (mode_list);
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/* Build list of modes with the requested bpp */
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for (i = 0; i < num_modes; i++) {
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CFDictionaryRef onemode;
CFNumberRef number;
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int bpp;
onemode = CFArrayGetValueAtIndex (mode_list, i);
number = CFDictionaryGetValue (onemode, kCGDisplayBitsPerPixel);
CFNumberGetValue (number, kCFNumberSInt32Type, &bpp);
if (bpp == format->BitsPerPixel) {
int intvalue;
int hasMode;
int width, height;
number = CFDictionaryGetValue (onemode, kCGDisplayWidth);
CFNumberGetValue (number, kCFNumberSInt32Type, &intvalue);
width = (Uint16) intvalue;
number = CFDictionaryGetValue (onemode, kCGDisplayHeight);
CFNumberGetValue (number, kCFNumberSInt32Type, &intvalue);
height = (Uint16) intvalue;
/* Check if mode is already in the list */
{
int i;
hasMode = SDL_FALSE;
for (i = 0; i < list_size; i++) {
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if (client_mode_list[i]->w == width &&
client_mode_list[i]->h == height) {
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hasMode = SDL_TRUE;
break;
}
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/* Grow the list and add mode to the list */
if ( ! hasMode ) {
SDL_Rect *rect;
list_size++;
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if (client_mode_list == NULL)
client_mode_list = (SDL_Rect**)
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SDL_malloc (sizeof(*client_mode_list) * (list_size+1) );
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client_mode_list = (SDL_Rect**)
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SDL_realloc (client_mode_list, sizeof(*client_mode_list) * (list_size+1));
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rect = (SDL_Rect*) SDL_malloc (sizeof(**client_mode_list));
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if (client_mode_list == NULL || rect == NULL) {
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SDL_OutOfMemory ();
return NULL;
}
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rect->x = rect->y = 0;
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rect->w = width;
rect->h = height;
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client_mode_list[list_size-1] = rect;
client_mode_list[list_size] = NULL;
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/* Sort list largest to smallest (by area) */
{
int i, j;
for (i = 0; i < list_size; i++) {
for (j = 0; j < list_size-1; j++) {
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int area1, area2;
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area1 = client_mode_list[j]->w * client_mode_list[j]->h;
area2 = client_mode_list[j+1]->w * client_mode_list[j+1]->h;
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if (area1 < area2) {
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SDL_Rect *tmp = client_mode_list[j];
client_mode_list[j] = client_mode_list[j+1];
client_mode_list[j+1] = tmp;
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}
}
}
}
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return client_mode_list;
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static SDL_bool QZ_WindowPosition(_THIS, int *x, int *y)
{
const char *window = getenv("SDL_VIDEO_WINDOW_POS");
if ( window ) {
if ( sscanf(window, "%d,%d", x, y) == 2 ) {
return SDL_TRUE;
}
}
return SDL_FALSE;
}
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static void QZ_UnsetVideoMode (_THIS, BOOL to_desktop)
{
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/* Reset values that may change between switches */
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this->info.blit_fill = 0;
this->FillHWRect = NULL;
this->UpdateRects = NULL;
this->LockHWSurface = NULL;
this->UnlockHWSurface = NULL;
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if (cg_context) {
CGContextFlush (cg_context);
CGContextRelease (cg_context);
cg_context = nil;
}
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/* Release fullscreen resources */
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if ( mode_flags & SDL_FULLSCREEN ) {
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NSRect screen_rect;
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/* Release double buffer stuff */
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if ( mode_flags & SDL_DOUBLEBUF) {
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quit_thread = YES;
SDL_SemPost (sem1);
SDL_WaitThread (thread, NULL);
SDL_DestroySemaphore (sem1);
SDL_DestroySemaphore (sem2);
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SDL_free (sw_buffers[0]);
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NSCAssert([ qz_window delegate ] == nil, @"full screen window shouldn't have a delegate"); /* if that should ever change, we'd have to release it here */
[ qz_window close ]; /* includes release because [qz_window isReleasedWhenClosed] */
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/*
Release the OpenGL context
Do this first to avoid trash on the display before fade
*/
if ( mode_flags & SDL_OPENGL ) {
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QZ_TearDownOpenGL (this);
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CGLSetFullScreen (NULL);
}
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if (to_desktop) {
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/* Restore original screen resolution/bpp */
CGDisplaySwitchToMode (display_id, save_mode);
CGReleaseAllDisplays ();
/*
Reset the main screen's rectangle
See comment in QZ_SetVideoFullscreen for why we do this
*/
screen_rect = NSMakeRect(0,0,device_width,device_height);
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QZ_SetFrame([ NSScreen mainScreen ], screen_rect);
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/* Release window mode resources */
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else {
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id delegate = [ qz_window delegate ];
[ qz_window close ]; /* includes release because [qz_window isReleasedWhenClosed] */
if (delegate != nil) [ delegate release ];
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qz_window = nil;
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window_view = nil;
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/* Release the OpenGL context */
if ( mode_flags & SDL_OPENGL )
QZ_TearDownOpenGL (this);
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/* Signal successful teardown */
video_set = SDL_FALSE;
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}
static SDL_Surface* QZ_SetVideoFullScreen (_THIS, SDL_Surface *current, int width,
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int height, int bpp, Uint32 flags)
{
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boolean_t exact_match = 0;
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NSRect screen_rect;
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CGError error;
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CGDisplayFadeReservationToken fade_token = kCGDisplayFadeReservationInvalidToken;
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/* Fade to black to hide resolution-switching flicker (and garbage
that is displayed by a destroyed OpenGL context, if applicable) */
if ( CGAcquireDisplayFadeReservation (5, &fade_token) == kCGErrorSuccess ) {
CGDisplayFade (fade_token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, TRUE);
}
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/* Destroy any previous mode */
if (video_set == SDL_TRUE)
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QZ_UnsetVideoMode (this, FALSE);
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/* Sorry, QuickDraw was ripped out. */
if (getenv("SDL_NSWindowPointer") || getenv("SDL_NSQuickDrawViewPointer")) {
SDL_SetError ("Embedded QuickDraw windows are no longer supported");
goto ERR_NO_MATCH;
}
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/* See if requested mode exists */
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mode = CGDisplayBestModeForParameters (display_id, bpp, width,
height, &exact_match);
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/* Require an exact match to the requested mode */
if ( ! exact_match ) {
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SDL_SetError ("Failed to find display resolution: %dx%dx%d", width, height, bpp);
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goto ERR_NO_MATCH;
}
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/* Put up the blanking window (a window above all other windows) */
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if (getenv ("SDL_SINGLEDISPLAY"))
error = CGDisplayCapture (display_id);
else
error = CGCaptureAllDisplays ();
if ( CGDisplayNoErr != error ) {
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SDL_SetError ("Failed capturing display");
goto ERR_NO_CAPTURE;
}
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/* Do the physical switch */
if ( CGDisplayNoErr != CGDisplaySwitchToMode (display_id, mode) ) {
SDL_SetError ("Failed switching display resolution");
goto ERR_NO_SWITCH;
}
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current->pixels = (Uint32*) CGDisplayBaseAddress (display_id);
current->pitch = CGDisplayBytesPerRow (display_id);
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current->flags = 0;
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current->w = width;
current->h = height;
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current->flags |= SDL_FULLSCREEN;
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current->flags |= SDL_HWSURFACE;
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current->flags |= SDL_PREALLOC;
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/* current->hwdata = (void *) CGDisplayGetDrawingContext (display_id); */
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this->UpdateRects = QZ_DirectUpdate;
this->LockHWSurface = QZ_LockHWSurface;
this->UnlockHWSurface = QZ_UnlockHWSurface;
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/* Setup double-buffer emulation */
if ( flags & SDL_DOUBLEBUF ) {
/*
Setup a software backing store for reasonable results when
double buffering is requested (since a single-buffered hardware
surface looks hideous).
The actual screen blit occurs in a separate thread to allow
other blitting while waiting on the VBL (and hence results in higher framerates).
*/
this->LockHWSurface = NULL;
this->UnlockHWSurface = NULL;
this->UpdateRects = NULL;
current->flags |= (SDL_HWSURFACE|SDL_DOUBLEBUF);
this->UpdateRects = QZ_DoubleBufferUpdate;
this->LockHWSurface = QZ_LockDoubleBuffer;
this->UnlockHWSurface = QZ_UnlockDoubleBuffer;
this->FlipHWSurface = QZ_FlipDoubleBuffer;
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current->pixels = SDL_malloc (current->pitch * current->h * 2);
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if (current->pixels == NULL) {
SDL_OutOfMemory ();
goto ERR_DOUBLEBUF;
}
sw_buffers[0] = current->pixels;
sw_buffers[1] = (Uint8*)current->pixels + current->pitch * current->h;
quit_thread = NO;
sem1 = SDL_CreateSemaphore (0);
sem2 = SDL_CreateSemaphore (1);
thread = SDL_CreateThread ((int (*)(void *))QZ_ThreadFlip, this);
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if ( CGDisplayCanSetPalette (display_id) )
current->flags |= SDL_HWPALETTE;
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/* Check if we should recreate the window */
if (qz_window == nil) {
/* Manually create a window, avoids having a nib file resource */
qz_window = [ [ SDL_QuartzWindow alloc ]
initWithContentRect:contentRect
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styleMask:0
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backing:NSBackingStoreBuffered
defer:NO ];
if (qz_window != nil) {
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
}
}
/* We already have a window, just change its size */
else {
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[ qz_window setContentSize:contentRect.size ];
current->flags |= (SDL_NOFRAME|SDL_RESIZABLE) & mode_flags;
[ window_view setFrameSize:contentRect.size ];
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/* Setup OpenGL for a fullscreen context */
if (flags & SDL_OPENGL) {
CGLError err;
CGLContextObj ctx;
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if ( ! QZ_SetupOpenGL (this, bpp, flags) ) {
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goto ERR_NO_GL;
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/* Initialize the NSView and add it to our window. The presence of a valid window and
view allow the cursor to be changed whilst in fullscreen.*/
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
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ctx = QZ_GetCGLContextObj (gl_context);
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err = CGLSetFullScreen (ctx);
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if (err) {
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SDL_SetError ("Error setting OpenGL fullscreen: %s", CGLErrorString(err));
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goto ERR_NO_GL;
}
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[ gl_context makeCurrentContext];
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glClear (GL_COLOR_BUFFER_BIT);
[ gl_context flushBuffer ];
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current->flags |= SDL_OPENGL;
}
/* If we don't hide menu bar, it will get events and interrupt the program */
HideMenuBar ();
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/* Fade in again (asynchronously) */
if ( fade_token != kCGDisplayFadeReservationInvalidToken ) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation(fade_token);
}
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There is a bug in Cocoa where NSScreen doesn't synchronize
with CGDirectDisplay, so the main screen's frame is wrong.
As a result, coordinate translation produces incorrect results.
We can hack around this bug by setting the screen rect
ourselves. This hack should be removed if/when the bug is fixed.
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*/
screen_rect = NSMakeRect(0,0,width,height);
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QZ_SetFrame([ NSScreen mainScreen ], screen_rect);
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/* Save the flags to ensure correct tear-down */
mode_flags = current->flags;
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return current;
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/* Since the blanking window covers *all* windows (even force quit) correct recovery is crucial */
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ERR_NO_GL:
ERR_DOUBLEBUF: CGDisplaySwitchToMode (display_id, save_mode);
ERR_NO_SWITCH: CGReleaseAllDisplays ();
664
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666
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669
ERR_NO_CAPTURE:
ERR_NO_MATCH: if ( fade_token != kCGDisplayFadeReservationInvalidToken ) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
return NULL;
670
671
672
}
static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
673
674
int height, int *bpp, Uint32 flags)
{
675
unsigned int style;
676
NSRect contentRect;
677
678
int center_window = 1;
int origin_x, origin_y;
679
CGDisplayFadeReservationToken fade_token = kCGDisplayFadeReservationInvalidToken;
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current->flags = 0;
current->w = width;
683
current->h = height;
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685
contentRect = NSMakeRect (0, 0, width, height);
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688
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692
693
/*
Check if we should completely destroy the previous mode
- If it is fullscreen
- If it has different noframe or resizable attribute
- If it is OpenGL (since gl attributes could be different)
- If new mode is OpenGL, but previous mode wasn't
*/
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700
701
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706
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708
if (video_set == SDL_TRUE) {
if (mode_flags & SDL_FULLSCREEN) {
/* Fade to black to hide resolution-switching flicker (and garbage
that is displayed by a destroyed OpenGL context, if applicable) */
if (CGAcquireDisplayFadeReservation (5, &fade_token) == kCGErrorSuccess) {
CGDisplayFade (fade_token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, TRUE);
}
QZ_UnsetVideoMode (this, TRUE);
}
else if ( ((mode_flags ^ flags) & (SDL_NOFRAME|SDL_RESIZABLE)) ||
(mode_flags & SDL_OPENGL) ||
(flags & SDL_OPENGL) ) {
QZ_UnsetVideoMode (this, TRUE);
}
}
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712
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714
715
/* Sorry, QuickDraw was ripped out. */
if (getenv("SDL_NSWindowPointer") || getenv("SDL_NSQuickDrawViewPointer")) {
SDL_SetError ("Embedded QuickDraw windows are no longer supported");
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
717
return NULL;
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723
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731
732
733
734
/* Check if we should recreate the window */
if (qz_window == nil) {
/* Set the window style based on input flags */
if ( flags & SDL_NOFRAME ) {
style = NSBorderlessWindowMask;
current->flags |= SDL_NOFRAME;
} else {
style = NSTitledWindowMask;
style |= (NSMiniaturizableWindowMask | NSClosableWindowMask);
if ( flags & SDL_RESIZABLE ) {
style |= NSResizableWindowMask;
current->flags |= SDL_RESIZABLE;
}
}
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738
739
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741
742
743
744
/* Manually create a window, avoids having a nib file resource */
qz_window = [ [ SDL_QuartzWindow alloc ]
initWithContentRect:contentRect
styleMask:style
backing:NSBackingStoreBuffered
defer:NO ];
if (qz_window == nil) {
SDL_SetError ("Could not create the Cocoa window");
745
746
747
748
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
749
750
return NULL;
}
752
/*[ qz_window setReleasedWhenClosed:YES ];*/ /* no need to set this as it's the default for NSWindows */
753
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755
QZ_SetCaption(this, this->wm_title, this->wm_icon);
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
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757
758
759
760
if ( QZ_WindowPosition(this, &origin_x, &origin_y) ) {
/* have to flip the Y value (NSPoint is lower left corner origin) */
[ qz_window setFrameTopLeftPoint:NSMakePoint((float) origin_x, (float) (this->info.current_h - origin_y))];
center_window = 0;
761
} else if ( center_window ) {
762
763
[ qz_window center ];
}
765
[ qz_window setDelegate:
767
[ qz_window setContentView: [ [ [ SDL_QuartzView alloc ] init ] autorelease ] ];
768
769
770
}
/* We already have a window, just change its size */
else {
771
772
773
[ qz_window setContentSize:contentRect.size ];
current->flags |= (SDL_NOFRAME|SDL_RESIZABLE) & mode_flags;
[ window_view setFrameSize:contentRect.size ];
776
/* For OpenGL, we bind the context to a subview */
777
if ( flags & SDL_OPENGL ) {
779
if ( ! QZ_SetupOpenGL (this, *bpp, flags) ) {
780
781
782
783
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
784
785
return NULL;
}
787
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
788
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
789
790
791
[ [ qz_window contentView ] addSubview:window_view ];
[ gl_context setView: window_view ];
[ window_view release ];
792
[ gl_context makeCurrentContext];
793
[ qz_window makeKeyAndOrderFront:nil ];
794
795
current->flags |= SDL_OPENGL;
}
796
/* For 2D, we build a CGBitmapContext */
798
CGColorSpaceRef cgColorspace;
800
801
802
/* Only recreate the view if it doesn't already exist */
if (window_view == nil) {
803
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
804
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
805
806
807
808
809
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
[ qz_window makeKeyAndOrderFront:nil ];
}
810
811
812
813
814
815
816
817
818
cgColorspace = CGColorSpaceCreateDeviceRGB();
current->pitch = 4 * current->w;
current->pixels = SDL_malloc (current->h * current->pitch);
cg_context = CGBitmapContextCreate (current->pixels, current->w, current->h,
8, current->pitch, cgColorspace,
kCGImageAlphaNoneSkipFirst);
CGColorSpaceRelease (cgColorspace);
819
current->flags |= SDL_SWSURFACE;
820
current->flags |= SDL_ASYNCBLIT;
821
current->hwdata = (void *) cg_context;
822
823
this->UpdateRects = QZ_UpdateRects;
824
825
this->LockHWSurface = QZ_LockHWSurface;
this->UnlockHWSurface = QZ_UnlockHWSurface;
828
829
/* Save flags to ensure correct teardown */
mode_flags = current->flags;
831
832
833
834
835
836
/* Fade in again (asynchronously) if we came from a fullscreen mode and faded to black */
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
837
838
839
return current;
}
840
static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current, int width,
841
842
int height, int bpp, Uint32 flags)
{
843
current->flags = 0;
844
current->pixels = NULL;
846
847
848
849
850
851
852
853
/* Setup full screen video */
if ( flags & SDL_FULLSCREEN ) {
current = QZ_SetVideoFullScreen (this, current, width, height, bpp, flags );
if (current == NULL)
return NULL;
}
/* Setup windowed video */
else {
854
855
/* Force bpp to 32 */
bpp = 32;
856
current = QZ_SetVideoWindowed (this, current, width, height, &bpp, flags);
857
858
859
if (current == NULL)
return NULL;
}
861
862
/* Setup the new pixel format */
{
863
864
865
866
867
int amask = 0,
rmask = 0,
gmask = 0,
bmask = 0;
868
869
switch (bpp) {
case 16: /* (1)-5-5-5 RGB */
870
amask = 0;
871
872
873
rmask = 0x7C00;
gmask = 0x03E0;
bmask = 0x001F;
874
875
876
877
878
break;
case 24:
SDL_SetError ("24bpp is not available");
return NULL;
case 32: /* (8)-8-8-8 ARGB */
879
amask = 0x00000000;
880
881
882
883
884
885
886
887
if ( flags & SDL_FULLSCREEN )
{
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
}
else
{
888
#if SDL_BYTEORDER == SDL_LITTLE_ENDIAN
889
890
891
rmask = 0x0000FF00;
gmask = 0x00FF0000;
bmask = 0xFF000000;
893
894
895
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
898
899
break;
}
901
902
if ( ! SDL_ReallocFormat (current, bpp,
rmask, gmask, bmask, amask ) ) {
903
904
SDL_SetError ("Couldn't reallocate pixel format");
return NULL;
908
/* Signal successful completion (used internally) */
909
video_set = SDL_TRUE;
911
912
913
return current;
}
914
915
static int QZ_ToggleFullScreen (_THIS, int on)
{
919
static int QZ_SetColors (_THIS, int first_color, int num_colors,
920
921
SDL_Color *colors)
{
922
923
CGTableCount index;
CGDeviceColor color;
925
for (index = first_color; index < first_color+num_colors; index++) {
927
928
929
930
/* Clamp colors between 0.0 and 1.0 */
color.red = colors->r / 255.0;
color.blue = colors->b / 255.0;
color.green = colors->g / 255.0;
934
935
CGPaletteSetColorAtIndex (palette, color, index);
}
937
938
if ( CGDisplayNoErr != CGDisplaySetPalette (display_id, palette) )
return 0;
940
941
942
return 1;
}
943
944
static int QZ_LockDoubleBuffer (_THIS, SDL_Surface *surface)
{
945
946
947
return 1;
}
948
949
static void QZ_UnlockDoubleBuffer (_THIS, SDL_Surface *surface)
{
952
953
954
/* The VBL delay is based on code by Ian R Ollmann's RezLib <iano@cco.caltech.edu> */
static AbsoluteTime QZ_SecondsToAbsolute ( double seconds )
{
957
UInt64 i;
958
959
960
961
962
963
964
965
Nanoseconds ns;
} temp;
temp.i = seconds * 1000000000.0;
return NanosecondsToAbsolute ( temp.ns );
}
966
967
static int QZ_ThreadFlip (_THIS)
{
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
Uint8 *src, *dst;
int skip, len, h;
/*
Give this thread the highest scheduling priority possible,
in the hopes that it will immediately run after the VBL delay
*/
{
pthread_t current_thread;
int policy;
struct sched_param param;
current_thread = pthread_self ();
pthread_getschedparam (current_thread, &policy, ¶m);
policy = SCHED_RR;
param.sched_priority = sched_get_priority_max (policy);
pthread_setschedparam (current_thread, policy, ¶m);
}
while (1) {
SDL_SemWait (sem1);
if (quit_thread)
return 0;
993
994
995
996
997
998
/*
* We have to add SDL_VideoSurface->offset here, since we might be a
* smaller surface in the center of the framebuffer (you asked for
* a fullscreen resolution smaller than the hardware could supply
* so SDL is centering it in a bigger resolution)...
*/
999
dst = (Uint8 *)CGDisplayBaseAddress (display_id) + SDL_VideoSurface->offset;
1000
src = current_buffer + SDL_VideoSurface->offset;