This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_QuartzVideo.m
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2003 Sam Lantinga
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This library is free software; you can redistribute it and/or
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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/*
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
/*
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;
/* 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 int QZ_LockWindow (_THIS, SDL_Surface *surface);
static void QZ_UnlockWindow (_THIS, SDL_Surface *surface);
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 */
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;
device = (SDL_VideoDevice*) malloc (sizeof (*device) );
hidden = (SDL_PrivateVideoData*) malloc (sizeof (*hidden) );
if (device == NULL || hidden == NULL)
SDL_OutOfMemory ();
memset (device, 0, sizeof (*device) );
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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device->CreateYUVOverlay = QZ_CreateYUVOverlay;
device->free = QZ_DeleteDevice;
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return device;
}
static void QZ_DeleteDevice (SDL_VideoDevice *device) {
free (device->hidden);
free (device);
}
static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format) {
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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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/* 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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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++)
free (client_mode_list[i]);
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free (client_mode_list);
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**)
malloc (sizeof(*client_mode_list) * (list_size+1) );
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client_mode_list = (SDL_Rect**)
realloc (client_mode_list, sizeof(*client_mode_list) * (list_size+1));
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rect = (SDL_Rect*) 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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/* 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);
free (sw_buffers[0]);
}
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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) {
/* Restore original screen resolution/bpp */
CGDisplaySwitchToMode (display_id, save_mode);
CGReleaseAllDisplays ();
ShowMenuBar ();
/*
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);
[ [ NSScreen mainScreen ] setFrame:screen_rect ];
}
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/* Release window mode resources */
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else {
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[ qz_window close ];
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[ qz_window 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,
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;
/* 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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/* 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;
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;
current->pixels = malloc (current->pitch * current->h * 2);
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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/* 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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ctx = [ gl_context cglContext ];
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);
[ [ NSScreen mainScreen ] setFrame: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;
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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 ();
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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,
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int height, int *bpp, Uint32 flags) {
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unsigned int style;
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NSRect contentRect;
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BOOL isCustom = NO;
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int center_window = 1;
int origin_x, origin_y;
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CGDisplayFadeReservationToken fade_token = kCGDisplayFadeReservationInvalidToken;
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current->flags = 0;
current->w = width;
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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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/* Check for user-specified window and view */
{
char *windowPtrString = getenv ("SDL_NSWindowPointer");
char *viewPtrString = getenv ("SDL_NSQuickDrawViewPointer");
if (windowPtrString && viewPtrString) {
/* Release any previous window */
if ( qz_window ) {
[ qz_window release ];
qz_window = nil;
}
qz_window = (NSWindow*)atoi(windowPtrString);
window_view = (NSQuickDrawView*)atoi(viewPtrString);
isCustom = YES;
/*
Retain reference to window because we
might release it in QZ_UnsetVideoMode
*/
[ qz_window retain ];
style = [ qz_window styleMask ];
/* Check resizability */
if ( style & NSResizableWindowMask )
current->flags |= SDL_RESIZABLE;
/* Check frame */
if ( style & NSBorderlessWindowMask )
current->flags |= SDL_NOFRAME;
}
}
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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;
}
}
668
669
670
671
672
673
if ( QZ_WindowPosition(this, &origin_x, &origin_y) ) {
center_window = 0;
contentRect.origin.x = (float)origin_x;
contentRect.origin.y = (float)origin_y;
}
674
675
676
677
678
679
680
681
682
/* 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");
683
684
685
686
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
687
688
689
return NULL;
}
690
/*[ qz_window setReleasedWhenClosed:YES ];*/
691
692
693
QZ_SetCaption(this, this->wm_title, this->wm_icon);
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
694
695
696
if ( center_window ) {
[ qz_window center ];
}
697
698
699
700
701
702
[ qz_window setDelegate:
[ [ [ SDL_QuartzWindowDelegate alloc ] init ] autorelease ] ];
}
/* We already have a window, just change its size */
else {
703
704
705
if (!isCustom) {
[ qz_window setContentSize:contentRect.size ];
current->flags |= (SDL_NOFRAME|SDL_RESIZABLE) & mode_flags;
706
[ window_view setFrameSize:contentRect.size ];
710
/* For OpenGL, we bind the context to a subview */
711
if ( flags & SDL_OPENGL ) {
713
if ( ! QZ_SetupOpenGL (this, *bpp, flags) ) {
714
715
716
717
if (fade_token != kCGDisplayFadeReservationInvalidToken) {
CGDisplayFade (fade_token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
CGReleaseDisplayFadeReservation (fade_token);
}
718
719
return NULL;
}
721
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
722
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
723
724
725
[ [ qz_window contentView ] addSubview:window_view ];
[ gl_context setView: window_view ];
[ window_view release ];
726
[ gl_context makeCurrentContext];
727
[ qz_window makeKeyAndOrderFront:nil ];
728
729
current->flags |= SDL_OPENGL;
}
730
/* For 2D, we set the subview to an NSQuickDrawView */
732
short qdbpp = 0;
734
735
736
/* Only recreate the view if it doesn't already exist */
if (window_view == nil) {
737
window_view = [ [ NSQuickDrawView alloc ] initWithFrame:contentRect ];
738
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
739
740
741
742
743
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
[ qz_window makeKeyAndOrderFront:nil ];
}
744
745
746
LockPortBits ( [ window_view qdPort ] );
current->pixels = GetPixBaseAddr ( GetPortPixMap ( [ window_view qdPort ] ) );
current->pitch = GetPixRowBytes ( GetPortPixMap ( [ window_view qdPort ] ) );
747
qdbpp = GetPixDepth ( GetPortPixMap ( [ window_view qdPort ] ) );
748
UnlockPortBits ( [ window_view qdPort ] );
750
751
752
/* QuickDraw may give a 16-bit shadow surface on 8-bit displays! */
*bpp = qdbpp;
753
754
current->flags |= SDL_SWSURFACE;
current->flags |= SDL_PREALLOC;
755
756
current->flags |= SDL_ASYNCBLIT;
757
758
759
760
761
762
763
764
765
766
/*
current->pixels now points to the window's pixels
We want it to point to the *view's* pixels
*/
{
int vOffset = [ qz_window frame ].size.height -
[ window_view frame ].size.height - [ window_view frame ].origin.y;
int hOffset = [ window_view frame ].origin.x;
767
current->pixels = (Uint8 *)current->pixels + (vOffset * current->pitch) + hOffset * (qdbpp/8);
769
770
771
this->UpdateRects = QZ_UpdateRects;
this->LockHWSurface = QZ_LockWindow;
this->UnlockHWSurface = QZ_UnlockWindow;
774
775
/* Save flags to ensure correct teardown */
mode_flags = current->flags;
777
778
779
780
781
782
/* 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);
}
783
784
785
return current;
}
786
787
static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current, int width,
int height, int bpp, Uint32 flags) {
788
789
current->flags = 0;
790
current->pixels = NULL;
792
793
794
795
796
797
798
799
800
/* 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 {
/* Force bpp to the device's bpp */
801
bpp = device_bpp;
802
current = QZ_SetVideoWindowed (this, current, width, height, &bpp, flags);
803
804
805
if (current == NULL)
return NULL;
}
807
808
/* Setup the new pixel format */
{
809
810
811
812
813
int amask = 0,
rmask = 0,
gmask = 0,
bmask = 0;
814
815
switch (bpp) {
case 16: /* (1)-5-5-5 RGB */
816
amask = 0;
817
818
819
rmask = 0x7C00;
gmask = 0x03E0;
bmask = 0x001F;
820
821
822
823
824
break;
case 24:
SDL_SetError ("24bpp is not available");
return NULL;
case 32: /* (8)-8-8-8 ARGB */
825
amask = 0x00000000;
826
827
828
829
830
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
break;
}
832
833
if ( ! SDL_ReallocFormat (current, bpp,
rmask, gmask, bmask, amask ) ) {
834
835
836
SDL_SetError ("Couldn't reallocate pixel format");
return NULL;
}
839
/* Signal successful completion (used internally) */
840
video_set = SDL_TRUE;
842
843
844
return current;
}
845
static int QZ_ToggleFullScreen (_THIS, int on) {
849
850
static int QZ_SetColors (_THIS, int first_color, int num_colors,
SDL_Color *colors) {
851
852
853
CGTableCount index;
CGDeviceColor color;
855
for (index = first_color; index < first_color+num_colors; index++) {
857
858
859
860
/* 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;
864
865
CGPaletteSetColorAtIndex (palette, color, index);
}
867
868
if ( CGDisplayNoErr != CGDisplaySetPalette (display_id, palette) )
return 0;
870
871
872
return 1;
}
873
874
875
876
877
878
879
880
881
882
883
884
885
886
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
{
887
UInt64 i;
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
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;
923
924
925
926
927
928
/*
* 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)...
*/
929
dst = (Uint8 *)CGDisplayBaseAddress (display_id) + SDL_VideoSurface->offset;
930
src = current_buffer + SDL_VideoSurface->offset;
931
932
933
934
935
936
937
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
973
974
975
976
977
978
979
980
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;
}
if ( 0 == CFNumberGetValue (refreshRateCFNumber, kCFNumberDoubleType, &refreshRate) ) {
SDL_SetError ("Error getting refresh rate");
goto ERROR;
}
if ( 0 == refreshRate ) {
SDL_SetError ("Display has no refresh rate, using 60hz");
/* ok, for LCD's we'll emulate a 60hz refresh, which may or may not look right */
refreshRate = 60.0;
}
linesPerSecond = refreshRate * h;
target = h;
/* Figure out the first delay so we start off about right */
position = CGDisplayBeamPosition (display_id);
if (position > target)
position = 0;
adjustment = (target - position) / linesPerSecond;
nextTime = AddAbsoluteToAbsolute (UpTime (), QZ_SecondsToAbsolute (adjustment));
MPDelayUntil (&nextTime);
}
/* On error, skip VBL delay */
ERROR:
while ( h-- ) {
memcpy (dst, src, len);
src += skip;
dst += skip;
}
/* signal flip completion */
SDL_SemPost (sem2);
}
return 0;
}
static int QZ_FlipDoubleBuffer (_THIS, SDL_Surface *surface) {