/
SDL_QuartzVideo.m
1632 lines (1246 loc) · 51.4 KB
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SDL_QuartzVideo.m
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2003 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_QuartzVideo.h"
#include "SDL_QuartzWindow.h"
/*
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);
static void QZ_UnsetVideoMode (_THIS);
static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current,
int width, int height, int bpp,
Uint32 flags);
static int QZ_ToggleFullScreen (_THIS, int on);
static int QZ_SetColors (_THIS, int first_color,
int num_colors, SDL_Color *colors);
static 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);
static int QZ_AllocHWSurface(_THIS, SDL_Surface *surface);
static void QZ_FreeHWSurface (_THIS, SDL_Surface *surface);
/* static int QZ_FlipHWSurface (_THIS, SDL_Surface *surface); */
/* Bootstrap binding, enables entry point into the driver */
VideoBootStrap QZ_bootstrap = {
"Quartz", "Mac OS X CoreGraphics", QZ_Available, QZ_CreateDevice
};
/* Bootstrap functions */
static int QZ_Available () {
return 1;
}
static SDL_VideoDevice* QZ_CreateDevice (int device_index) {
#pragma unused (device_index)
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) );
device->hidden = hidden;
device->VideoInit = QZ_VideoInit;
device->ListModes = QZ_ListModes;
device->SetVideoMode = QZ_SetVideoMode;
device->ToggleFullScreen = QZ_ToggleFullScreen;
device->SetColors = QZ_SetColors;
/* device->UpdateRects = QZ_UpdateRects; this is determined by SetVideoMode() */
device->VideoQuit = QZ_VideoQuit;
device->LockHWSurface = QZ_LockHWSurface;
device->UnlockHWSurface = QZ_UnlockHWSurface;
device->AllocHWSurface = QZ_AllocHWSurface;
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;
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;
device->CreateYUVOverlay = QZ_CreateYUVOverlay;
device->free = QZ_DeleteDevice;
return device;
}
static void QZ_DeleteDevice (SDL_VideoDevice *device) {
free (device->hidden);
free (device);
}
static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format) {
/* 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 ();
/* Gather some information that is useful to know about the display */
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayBitsPerPixel),
kCFNumberSInt32Type, &device_bpp);
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayWidth),
kCFNumberSInt32Type, &device_width);
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayHeight),
kCFNumberSInt32Type, &device_height);
video_format->BitsPerPixel = device_bpp;
/* Set misc globals */
current_grab_mode = SDL_GRAB_OFF;
cursor_should_be_visible = YES;
cursor_visible = YES;
current_mods = 0;
if ( Gestalt(gestaltSystemVersion, &system_version) != noErr )
system_version = 0;
/* register for sleep notifications so wake from sleep generates SDL_VIDEOEXPOSE */
QZ_RegisterForSleepNotifications (this);
return 0;
}
static SDL_Rect** QZ_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags) {
CFIndex num_modes;
CFIndex i;
int list_size = 0;
/* Any windowed mode is acceptable */
if ( (flags & SDL_FULLSCREEN) == 0 )
return (SDL_Rect**)-1;
/* Free memory from previous call, if any */
if ( client_mode_list != NULL ) {
int i;
for (i = 0; client_mode_list[i] != NULL; i++)
free (client_mode_list[i]);
free (client_mode_list);
client_mode_list = NULL;
}
num_modes = CFArrayGetCount (mode_list);
/* Build list of modes with the requested bpp */
for (i = 0; i < num_modes; i++) {
CFDictionaryRef onemode;
CFNumberRef number;
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++) {
if (client_mode_list[i]->w == width &&
client_mode_list[i]->h == height) {
hasMode = SDL_TRUE;
break;
}
}
}
/* Grow the list and add mode to the list */
if ( ! hasMode ) {
SDL_Rect *rect;
list_size++;
if (client_mode_list == NULL)
client_mode_list = (SDL_Rect**)
malloc (sizeof(*client_mode_list) * (list_size+1) );
else
client_mode_list = (SDL_Rect**)
realloc (client_mode_list, sizeof(*client_mode_list) * (list_size+1));
rect = (SDL_Rect*) malloc (sizeof(**client_mode_list));
if (client_mode_list == NULL || rect == NULL) {
SDL_OutOfMemory ();
return NULL;
}
rect->w = width;
rect->h = height;
client_mode_list[list_size-1] = rect;
client_mode_list[list_size] = NULL;
}
}
}
/* 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++) {
int area1, area2;
area1 = client_mode_list[j]->w * client_mode_list[j]->h;
area2 = client_mode_list[j+1]->w * client_mode_list[j+1]->h;
if (area1 < area2) {
SDL_Rect *tmp = client_mode_list[j];
client_mode_list[j] = client_mode_list[j+1];
client_mode_list[j+1] = tmp;
}
}
}
}
return client_mode_list;
}
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;
}
/*
Gamma functions to try to hide the flash from a rez switch
Fade the display from normal to black
Save gamma tables for fade back to normal
*/
static UInt32 QZ_FadeGammaOut (_THIS, SDL_QuartzGammaTable *table) {
CGGammaValue redTable[QZ_GAMMA_TABLE_SIZE],
greenTable[QZ_GAMMA_TABLE_SIZE],
blueTable[QZ_GAMMA_TABLE_SIZE];
float percent;
int j;
int actual;
if ( (CGDisplayNoErr != CGGetDisplayTransferByTable
(display_id, QZ_GAMMA_TABLE_SIZE,
table->red, table->green, table->blue, &actual)) ||
actual != QZ_GAMMA_TABLE_SIZE) {
return 1;
}
memcpy (redTable, table->red, sizeof(redTable));
memcpy (greenTable, table->green, sizeof(greenTable));
memcpy (blueTable, table->blue, sizeof(greenTable));
for (percent = 1.0; percent >= 0.0; percent -= 0.01) {
for (j = 0; j < QZ_GAMMA_TABLE_SIZE; j++) {
redTable[j] = redTable[j] * percent;
greenTable[j] = greenTable[j] * percent;
blueTable[j] = blueTable[j] * percent;
}
if (CGDisplayNoErr != CGSetDisplayTransferByTable
(display_id, QZ_GAMMA_TABLE_SIZE,
redTable, greenTable, blueTable)) {
CGDisplayRestoreColorSyncSettings();
return 1;
}
SDL_Delay (10);
}
return 0;
}
/*
Fade the display from black to normal
Restore previously saved gamma values
*/
static UInt32 QZ_FadeGammaIn (_THIS, SDL_QuartzGammaTable *table) {
CGGammaValue redTable[QZ_GAMMA_TABLE_SIZE],
greenTable[QZ_GAMMA_TABLE_SIZE],
blueTable[QZ_GAMMA_TABLE_SIZE];
float percent;
int j;
memset (redTable, 0, sizeof(redTable));
memset (greenTable, 0, sizeof(greenTable));
memset (blueTable, 0, sizeof(greenTable));
for (percent = 0.0; percent <= 1.0; percent += 0.01) {
for (j = 0; j < QZ_GAMMA_TABLE_SIZE; j++) {
redTable[j] = table->red[j] * percent;
greenTable[j] = table->green[j] * percent;
blueTable[j] = table->blue[j] * percent;
}
if (CGDisplayNoErr != CGSetDisplayTransferByTable
(display_id, QZ_GAMMA_TABLE_SIZE,
redTable, greenTable, blueTable)) {
CGDisplayRestoreColorSyncSettings();
return 1;
}
SDL_Delay (10);
}
return 0;
}
static void QZ_UnsetVideoMode (_THIS) {
/* Reset values that may change between switches */
this->info.blit_fill = 0;
this->FillHWRect = NULL;
this->UpdateRects = NULL;
this->LockHWSurface = NULL;
this->UnlockHWSurface = NULL;
/* Release fullscreen resources */
if ( mode_flags & SDL_FULLSCREEN ) {
SDL_QuartzGammaTable gamma_table;
int gamma_error;
NSRect screen_rect;
gamma_error = QZ_FadeGammaOut (this, &gamma_table);
/* Release double buffer stuff */
if ( mode_flags & SDL_DOUBLEBUF) {
quit_thread = YES;
SDL_SemPost (sem1);
SDL_WaitThread (thread, NULL);
SDL_DestroySemaphore (sem1);
SDL_DestroySemaphore (sem2);
free (sw_buffers[0]);
}
/*
Release the OpenGL context
Do this first to avoid trash on the display before fade
*/
if ( mode_flags & SDL_OPENGL ) {
QZ_TearDownOpenGL (this);
CGLSetFullScreen (NULL);
}
/* 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 ];
if (! gamma_error)
QZ_FadeGammaIn (this, &gamma_table);
}
/* Release window mode resources */
else {
[ qz_window close ];
[ qz_window release ];
qz_window = nil;
window_view = nil;
/* Release the OpenGL context */
if ( mode_flags & SDL_OPENGL )
QZ_TearDownOpenGL (this);
}
/* Signal successful teardown */
video_set = SDL_FALSE;
}
static SDL_Surface* QZ_SetVideoFullScreen (_THIS, SDL_Surface *current, int width,
int height, int bpp, Uint32 flags) {
int exact_match;
int gamma_error;
SDL_QuartzGammaTable gamma_table;
NSRect screen_rect;
CGError error;
/* Destroy any previous mode */
if (video_set == SDL_TRUE)
QZ_UnsetVideoMode (this);
/* See if requested mode exists */
mode = CGDisplayBestModeForParameters (display_id, bpp, width,
height, &exact_match);
/* Require an exact match to the requested mode */
if ( ! exact_match ) {
SDL_SetError ("Failed to find display resolution: %dx%dx%d", width, height, bpp);
goto ERR_NO_MATCH;
}
/* Fade display to zero gamma */
gamma_error = QZ_FadeGammaOut (this, &gamma_table);
/* Put up the blanking window (a window above all other windows) */
if (getenv ("SDL_SINGLEDISPLAY"))
error = CGDisplayCapture (display_id);
else
error = CGCaptureAllDisplays ();
if ( CGDisplayNoErr != error ) {
SDL_SetError ("Failed capturing display");
goto ERR_NO_CAPTURE;
}
/* Do the physical switch */
if ( CGDisplayNoErr != CGDisplaySwitchToMode (display_id, mode) ) {
SDL_SetError ("Failed switching display resolution");
goto ERR_NO_SWITCH;
}
current->pixels = (Uint32*) CGDisplayBaseAddress (display_id);
current->pitch = CGDisplayBytesPerRow (display_id);
current->flags = 0;
current->w = width;
current->h = height;
current->flags |= SDL_FULLSCREEN;
current->flags |= SDL_HWSURFACE;
current->flags |= SDL_PREALLOC;
this->UpdateRects = QZ_DirectUpdate;
this->LockHWSurface = QZ_LockHWSurface;
this->UnlockHWSurface = QZ_UnlockHWSurface;
/* 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);
}
if ( CGDisplayCanSetPalette (display_id) )
current->flags |= SDL_HWPALETTE;
/* Setup OpenGL for a fullscreen context */
if (flags & SDL_OPENGL) {
CGLError err;
CGLContextObj ctx;
if ( ! QZ_SetupOpenGL (this, bpp, flags) ) {
goto ERR_NO_GL;
}
ctx = [ gl_context cglContext ];
err = CGLSetFullScreen (ctx);
if (err) {
SDL_SetError ("Error setting OpenGL fullscreen: %s", CGLErrorString(err));
goto ERR_NO_GL;
}
[ gl_context makeCurrentContext];
glClear (GL_COLOR_BUFFER_BIT);
[ gl_context flushBuffer ];
current->flags |= SDL_OPENGL;
}
/* If we don't hide menu bar, it will get events and interrupt the program */
HideMenuBar ();
/* Fade the display to original gamma */
if (! gamma_error )
QZ_FadeGammaIn (this, &gamma_table);
/*
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.
*/
screen_rect = NSMakeRect(0,0,width,height);
[ [ NSScreen mainScreen ] setFrame:screen_rect ];
/* Save the flags to ensure correct tear-down */
mode_flags = current->flags;
/* we're fullscreen, so flag all input states... */
SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS | SDL_APPINPUTFOCUS | SDL_APPACTIVE);
return current;
/* Since the blanking window covers *all* windows (even force quit) correct recovery is crucial */
ERR_NO_GL:
ERR_DOUBLEBUF: CGDisplaySwitchToMode (display_id, save_mode);
ERR_NO_SWITCH: CGReleaseAllDisplays ();
ERR_NO_CAPTURE: if (!gamma_error) { QZ_FadeGammaIn (this, &gamma_table); }
ERR_NO_MATCH: return NULL;
}
static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
int height, int *bpp, Uint32 flags) {
unsigned int style;
NSRect contentRect;
BOOL isCustom = NO;
int center_window = 1;
int origin_x, origin_y;
current->flags = 0;
current->w = width;
current->h = height;
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
*/
if (video_set == SDL_TRUE)
if ( (mode_flags & SDL_FULLSCREEN) ||
((mode_flags ^ flags) & (SDL_NOFRAME|SDL_RESIZABLE)) ||
(mode_flags & SDL_OPENGL) ||
(flags & SDL_OPENGL) )
QZ_UnsetVideoMode (this);
/* 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;
}
}
/* 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;
}
}
if ( QZ_WindowPosition(this, &origin_x, &origin_y) ) {
center_window = 0;
contentRect.origin.x = (float)origin_x;
contentRect.origin.y = (float)origin_y;
}
/* 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");
return NULL;
}
//[ qz_window setReleasedWhenClosed:YES ];
QZ_SetCaption(this, this->wm_title, this->wm_icon);
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
if ( center_window ) {
[ qz_window center ];
}
[ qz_window setDelegate:
[ [ [ SDL_QuartzWindowDelegate alloc ] init ] autorelease ] ];
}
/* 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 ];
}
}
/* For OpenGL, we bind the context to a subview */
if ( flags & SDL_OPENGL ) {
if ( ! QZ_SetupOpenGL (this, *bpp, flags) ) {
return NULL;
}
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
[ [ qz_window contentView ] addSubview:window_view ];
[ gl_context setView: window_view ];
[ window_view release ];
[ gl_context makeCurrentContext];
[ qz_window makeKeyAndOrderFront:nil ];
current->flags |= SDL_OPENGL;
}
/* For 2D, we set the subview to an NSQuickDrawView */
else {
short qdbpp = 0;
/* Only recreate the view if it doesn't already exist */
if (window_view == nil) {
window_view = [ [ NSQuickDrawView alloc ] initWithFrame:contentRect ];
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
[ qz_window makeKeyAndOrderFront:nil ];
}
LockPortBits ( [ window_view qdPort ] );
current->pixels = GetPixBaseAddr ( GetPortPixMap ( [ window_view qdPort ] ) );
current->pitch = GetPixRowBytes ( GetPortPixMap ( [ window_view qdPort ] ) );
qdbpp = GetPixDepth ( GetPortPixMap ( [ window_view qdPort ] ) );
UnlockPortBits ( [ window_view qdPort ] );
/* QuickDraw may give a 16-bit shadow surface on 8-bit displays! */
*bpp = qdbpp;
current->flags |= SDL_SWSURFACE;
current->flags |= SDL_PREALLOC;
current->flags |= SDL_ASYNCBLIT;
/*
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;
current->pixels += (vOffset * current->pitch) + hOffset * (qdbpp/8);
}
this->UpdateRects = QZ_UpdateRects;
this->LockHWSurface = QZ_LockWindow;
this->UnlockHWSurface = QZ_UnlockWindow;
}
/* Save flags to ensure correct teardown */
mode_flags = current->flags;
return current;
}
static SDL_Surface* QZ_SetVideoMode (_THIS, SDL_Surface *current, int width,
int height, int bpp, Uint32 flags) {
current->flags = 0;
current->pixels = NULL;
/* 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 */
bpp = device_bpp;
current = QZ_SetVideoWindowed (this, current, width, height, &bpp, flags);
if (current == NULL)
return NULL;
}
/* Setup the new pixel format */
{
int amask = 0,
rmask = 0,
gmask = 0,
bmask = 0;
switch (bpp) {
case 16: /* (1)-5-5-5 RGB */
amask = 0;
rmask = 0x7C00;
gmask = 0x03E0;
bmask = 0x001F;
break;
case 24:
SDL_SetError ("24bpp is not available");
return NULL;
case 32: /* (8)-8-8-8 ARGB */
amask = 0x00000000;
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
break;
}
if ( ! SDL_ReallocFormat (current, bpp,
rmask, gmask, bmask, amask ) ) {
SDL_SetError ("Couldn't reallocate pixel format");
return NULL;
}
}
/* Signal successful completion (used internally) */
video_set = SDL_TRUE;
return current;
}
static int QZ_ToggleFullScreen (_THIS, int on) {
return 0;
}
static int QZ_SetColors (_THIS, int first_color, int num_colors,
SDL_Color *colors) {
CGTableCount index;
CGDeviceColor color;
for (index = first_color; index < first_color+num_colors; index++) {
/* 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;
colors++;
CGPaletteSetColorAtIndex (palette, color, index);
}
if ( CGDisplayNoErr != CGDisplaySetPalette (display_id, palette) )
return 0;
return 1;
}
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
{
UInt64 i;
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;
dst = CGDisplayBaseAddress (display_id);
src = current_buffer;
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;
}