/
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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*/
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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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};
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/* Bootstrap functions */
static int QZ_Available () {
return 1;
}
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;
}
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;
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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}
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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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}
}
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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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else
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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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}
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}
}
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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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}
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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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}
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/* If we still have a valid window, close it. */
if ( qz_window ) {
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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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qz_window = nil;
window_view = nil;
}
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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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ShowMenuBar ();
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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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}
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}
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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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}
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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,
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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NSRect contentRect;
BOOL isCustom = NO;
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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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}
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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 {
if (!isCustom) {
[ 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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}
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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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/*
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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.
635
636
*/
screen_rect = NSMakeRect(0,0,width,height);
637
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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/* Set app state, hide cursor if necessary, ... */
QZ_DoActivate(this);
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return current;
647
/* 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 ();
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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;
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}
static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
660
int height, int *bpp, Uint32 flags) {
661
unsigned int style;
662
NSRect contentRect;
663
BOOL isCustom = NO;
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int center_window = 1;
int origin_x, origin_y;
666
CGDisplayFadeReservationToken fade_token = kCGDisplayFadeReservationInvalidToken;
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current->flags = 0;
current->w = width;
670
current->h = height;
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contentRect = NSMakeRect (0, 0, width, height);
/*
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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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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/* 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);
703
}
704
return NULL;
705
}
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/* 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;
}
}
723
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if ( QZ_WindowPosition(this, &origin_x, &origin_y) ) {
center_window = 0;
contentRect.origin.x = (float)origin_x;
contentRect.origin.y = (float)origin_y;
}
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737
/* 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");
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741
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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return NULL;
}
745
/*[ qz_window setReleasedWhenClosed:YES ];*/ /* no need to set this as it's the default for NSWindows */
746
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748
QZ_SetCaption(this, this->wm_title, this->wm_icon);
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
749
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751
if ( center_window ) {
[ qz_window center ];
}
752
[ qz_window setDelegate:
753
[ [ SDL_QuartzWindowDelegate alloc ] init ] ];
754
[ qz_window setContentView: [ [ [ SDL_QuartzView alloc ] init ] autorelease ] ];
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758
}
/* We already have a window, just change its size */
else {
759
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761
if (!isCustom) {
[ qz_window setContentSize:contentRect.size ];
current->flags |= (SDL_NOFRAME|SDL_RESIZABLE) & mode_flags;
762
[ window_view setFrameSize:contentRect.size ];
763
}
764
}
765
766
/* For OpenGL, we bind the context to a subview */
767
if ( flags & SDL_OPENGL ) {
768
769
if ( ! QZ_SetupOpenGL (this, *bpp, flags) ) {
770
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773
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
774
775
return NULL;
}
776
777
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
778
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
779
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781
[ [ qz_window contentView ] addSubview:window_view ];
[ gl_context setView: window_view ];
[ window_view release ];
782
[ gl_context makeCurrentContext];
783
[ qz_window makeKeyAndOrderFront:nil ];
784
785
current->flags |= SDL_OPENGL;
}
786
/* For 2D, we build a CGBitmapContext */
787
else {
788
CGColorSpaceRef cgColorspace;
789
790
791
792
/* Only recreate the view if it doesn't already exist */
if (window_view == nil) {
793
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
794
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
795
796
797
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799
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
[ qz_window makeKeyAndOrderFront:nil ];
}
800
801
802
803
804
805
806
807
808
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);
809
current->flags |= SDL_SWSURFACE;
810
current->flags |= SDL_ASYNCBLIT;
811
current->hwdata = (void *) cg_context;
812
813
this->UpdateRects = QZ_UpdateRects;
814
815
this->LockHWSurface = QZ_LockHWSurface;
this->UnlockHWSurface = QZ_UnlockHWSurface;
816
}
817
818
819
/* Save flags to ensure correct teardown */
mode_flags = current->flags;
820
821
822
823
824
825
826
/* 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);
}
827
828
829
return current;
}
830
831
static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current, int width,
int height, int bpp, Uint32 flags) {
832
833
current->flags = 0;
834
current->pixels = NULL;
835
836
837
838
839
840
841
842
843
/* 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 {
844
845
/* Force bpp to 32 */
bpp = 32;
846
current = QZ_SetVideoWindowed (this, current, width, height, &bpp, flags);
847
848
849
if (current == NULL)
return NULL;
}
850
851
852
/* Setup the new pixel format */
{
853
854
855
856
857
int amask = 0,
rmask = 0,
gmask = 0,
bmask = 0;
858
859
switch (bpp) {
case 16: /* (1)-5-5-5 RGB */
860
amask = 0;
861
862
863
rmask = 0x7C00;
gmask = 0x03E0;
bmask = 0x001F;
864
865
866
867
868
break;
case 24:
SDL_SetError ("24bpp is not available");
return NULL;
case 32: /* (8)-8-8-8 ARGB */
869
amask = 0x00000000;
870
871
872
873
874
#ifdef __LITTLE_ENDIAN__
rmask = 0x0000FF00;
gmask = 0x00FF0000;
bmask = 0xFF000000;
#else
875
876
877
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
878
#endif
879
880
break;
}
881
882
883
if ( ! SDL_ReallocFormat (current, bpp,
rmask, gmask, bmask, amask ) ) {
884
885
886
SDL_SetError ("Couldn't reallocate pixel format");
return NULL;
}
887
}
888
889
/* Signal successful completion (used internally) */
890
video_set = SDL_TRUE;
891
892
893
894
return current;
}
895
static int QZ_ToggleFullScreen (_THIS, int on) {
896
return 0;
897
898
}
899
900
static int QZ_SetColors (_THIS, int first_color, int num_colors,
SDL_Color *colors) {
901
902
903
CGTableCount index;
CGDeviceColor color;
904
905
for (index = first_color; index < first_color+num_colors; index++) {
906
907
908
909
910
/* 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;
911
912
colors++;
913
914
915
CGPaletteSetColorAtIndex (palette, color, index);
}
916
917
918
if ( CGDisplayNoErr != CGDisplaySetPalette (display_id, palette) )
return 0;
919
920
921
922
return 1;
}
923
924
925
926
927
928
929
930
931
932
933
934
935
936
static int QZ_LockDoubleBuffer (_THIS, SDL_Surface *surface) {
return 1;
}
static void QZ_UnlockDoubleBuffer (_THIS, SDL_Surface *surface) {
}
/* The VBL delay is based on code by Ian R Ollmann's RezLib <iano@cco.caltech.edu> */
static AbsoluteTime QZ_SecondsToAbsolute ( double seconds ) {
union
{
937
UInt64 i;
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
Nanoseconds ns;
} temp;
temp.i = seconds * 1000000000.0;
return NanosecondsToAbsolute ( temp.ns );
}
static int QZ_ThreadFlip (_THIS) {
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;
973
974
975
976
977
978
/*
* 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)...
*/
979
dst = (Uint8 *)CGDisplayBaseAddress (display_id) + SDL_VideoSurface->offset;
980
src = current_buffer + SDL_VideoSurface->offset;
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
len = SDL_VideoSurface->w * SDL_VideoSurface->format->BytesPerPixel;
h = SDL_VideoSurface->h;
skip = SDL_VideoSurface->pitch;
/* Wait for the VBL to occur (estimated since we don't have a hardware interrupt) */
{
/* The VBL delay is based on Ian Ollmann's RezLib <iano@cco.caltech.edu> */
double refreshRate;
double linesPerSecond;
double target;
double position;
double adjustment;
AbsoluteTime nextTime;
CFNumberRef refreshRateCFNumber;
refreshRateCFNumber = CFDictionaryGetValue (mode, kCGDisplayRefreshRate);
if ( NULL == refreshRateCFNumber ) {
SDL_SetError ("Mode has no refresh rate");
goto ERROR;