SDL_QuartzVideo.m
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2003 Sam Lantinga
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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
20
slouken@libsdl.org
21
22
23
*/
#include "SDL_QuartzVideo.h"
24
#include "SDL_QuartzWindow.h"
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/*
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 void QZ_FreeHWSurface (_THIS, SDL_Surface *surface);
/* static int QZ_FlipHWSurface (_THIS, SDL_Surface *surface); */
100
101
102
/* Bootstrap binding, enables entry point into the driver */
VideoBootStrap QZ_bootstrap = {
103
"Quartz", "Mac OS X CoreGraphics", QZ_Available, QZ_CreateDevice
107
108
109
110
111
112
113
/* Bootstrap functions */
static int QZ_Available () {
return 1;
}
static SDL_VideoDevice* QZ_CreateDevice (int device_index) {
114
#pragma unused (device_index)
115
116
117
118
119
120
121
122
123
124
125
126
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) );
128
129
130
131
132
133
134
135
136
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;
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
device->LockHWSurface = QZ_LockHWSurface;
device->UnlockHWSurface = QZ_UnlockHWSurface;
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;
154
155
156
157
158
159
160
161
162
163
164
165
166
167
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;
169
170
171
device->CreateYUVOverlay = QZ_CreateYUVOverlay;
device->free = QZ_DeleteDevice;
173
174
175
176
177
178
179
180
181
182
183
return device;
}
static void QZ_DeleteDevice (SDL_VideoDevice *device) {
free (device->hidden);
free (device);
}
static int QZ_VideoInit (_THIS, SDL_PixelFormat *video_format) {
184
185
186
187
188
/* 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 ();
190
191
192
/* Gather some information that is useful to know about the display */
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayBitsPerPixel),
kCFNumberSInt32Type, &device_bpp);
194
195
196
197
198
199
200
201
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayWidth),
kCFNumberSInt32Type, &device_width);
CFNumberGetValue (CFDictionaryGetValue (save_mode, kCGDisplayHeight),
kCFNumberSInt32Type, &device_height);
video_format->BitsPerPixel = device_bpp;
202
203
/* Set misc globals */
current_grab_mode = SDL_GRAB_OFF;
204
cursor_should_be_visible = YES;
205
cursor_visible = YES;
206
current_mods = 0;
208
209
210
if ( Gestalt(gestaltSystemVersion, &system_version) != noErr )
system_version = 0;
211
212
213
/* register for sleep notifications so wake from sleep generates SDL_VIDEOEXPOSE */
QZ_RegisterForSleepNotifications (this);
214
return 0;
215
216
217
}
static SDL_Rect** QZ_ListModes (_THIS, SDL_PixelFormat *format, Uint32 flags) {
219
CFIndex num_modes;
220
221
222
CFIndex i;
int list_size = 0;
224
225
226
/* Any windowed mode is acceptable */
if ( (flags & SDL_FULLSCREEN) == 0 )
return (SDL_Rect**)-1;
228
/* Free memory from previous call, if any */
229
if ( client_mode_list != NULL ) {
231
int i;
233
234
for (i = 0; client_mode_list[i] != NULL; i++)
free (client_mode_list[i]);
236
237
free (client_mode_list);
client_mode_list = NULL;
240
241
num_modes = CFArrayGetCount (mode_list);
242
/* Build list of modes with the requested bpp */
243
for (i = 0; i < num_modes; i++) {
245
246
CFDictionaryRef onemode;
CFNumberRef number;
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
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++) {
272
273
if (client_mode_list[i]->w == width &&
client_mode_list[i]->h == height) {
274
275
276
hasMode = SDL_TRUE;
break;
}
279
280
281
282
283
284
285
286
/* Grow the list and add mode to the list */
if ( ! hasMode ) {
SDL_Rect *rect;
list_size++;
287
288
289
if (client_mode_list == NULL)
client_mode_list = (SDL_Rect**)
malloc (sizeof(*client_mode_list) * (list_size+1) );
291
292
client_mode_list = (SDL_Rect**)
realloc (client_mode_list, sizeof(*client_mode_list) * (list_size+1));
294
rect = (SDL_Rect*) malloc (sizeof(**client_mode_list));
296
if (client_mode_list == NULL || rect == NULL) {
297
298
299
300
301
302
303
SDL_OutOfMemory ();
return NULL;
}
rect->w = width;
rect->h = height;
304
305
client_mode_list[list_size-1] = rect;
client_mode_list[list_size] = NULL;
310
311
312
313
314
/* 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++) {
316
int area1, area2;
317
318
area1 = client_mode_list[j]->w * client_mode_list[j]->h;
area2 = client_mode_list[j+1]->w * client_mode_list[j+1]->h;
320
if (area1 < area2) {
321
322
323
SDL_Rect *tmp = client_mode_list[j];
client_mode_list[j] = client_mode_list[j+1];
client_mode_list[j+1] = tmp;
324
325
326
327
}
}
}
}
328
return client_mode_list;
331
332
333
334
335
336
337
338
339
340
341
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;
}
342
343
344
345
346
/*
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
*/
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
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;
}
392
393
394
395
/*
Fade the display from black to normal
Restore previously saved gamma values
*/
396
397
398
static UInt32 QZ_FadeGammaIn (_THIS, SDL_QuartzGammaTable *table) {
CGGammaValue redTable[QZ_GAMMA_TABLE_SIZE],
399
400
greenTable[QZ_GAMMA_TABLE_SIZE],
blueTable[QZ_GAMMA_TABLE_SIZE];
401
402
403
404
405
406
407
float percent;
int j;
memset (redTable, 0, sizeof(redTable));
memset (greenTable, 0, sizeof(greenTable));
memset (blueTable, 0, sizeof(greenTable));
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
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;
}
432
433
434
static void QZ_UnsetVideoMode (_THIS) {
/* Reset values that may change between switches */
435
436
437
438
439
440
this->info.blit_fill = 0;
this->FillHWRect = NULL;
this->UpdateRects = NULL;
this->LockHWSurface = NULL;
this->UnlockHWSurface = NULL;
441
/* Release fullscreen resources */
442
if ( mode_flags & SDL_FULLSCREEN ) {
443
444
445
SDL_QuartzGammaTable gamma_table;
int gamma_error;
446
447
NSRect screen_rect;
448
449
gamma_error = QZ_FadeGammaOut (this, &gamma_table);
450
451
452
453
454
455
456
457
458
459
/* Release double buffer stuff */
if ( mode_flags & (SDL_HWSURFACE|SDL_DOUBLEBUF)) {
quit_thread = YES;
SDL_SemPost (sem1);
SDL_WaitThread (thread, NULL);
SDL_DestroySemaphore (sem1);
SDL_DestroySemaphore (sem2);
free (sw_buffers[0]);
}
460
461
462
463
464
465
/*
Release the OpenGL context
Do this first to avoid trash on the display before fade
*/
if ( mode_flags & SDL_OPENGL ) {
466
QZ_TearDownOpenGL (this);
467
468
469
CGLSetFullScreen (NULL);
}
470
/* Restore original screen resolution/bpp */
471
CGDisplaySwitchToMode (display_id, save_mode);
472
CGReleaseAllDisplays ();
473
ShowMenuBar ();
475
476
Reset the main screen's rectangle
See comment in QZ_SetVideoFullscreen for why we do this
477
478
479
480
*/
screen_rect = NSMakeRect(0,0,device_width,device_height);
[ [ NSScreen mainScreen ] setFrame:screen_rect ];
481
482
if (! gamma_error)
QZ_FadeGammaIn (this, &gamma_table);
484
/* Release window mode resources */
485
else {
487
[ qz_window close ];
488
[ qz_window release ];
489
qz_window = nil;
490
491
window_view = nil;
492
493
494
/* Release the OpenGL context */
if ( mode_flags & SDL_OPENGL )
QZ_TearDownOpenGL (this);
497
498
/* Signal successful teardown */
video_set = SDL_FALSE;
499
500
501
502
503
}
static SDL_Surface* QZ_SetVideoFullScreen (_THIS, SDL_Surface *current, int width,
int height, int bpp, Uint32 flags) {
int exact_match;
504
505
int gamma_error;
SDL_QuartzGammaTable gamma_table;
506
NSRect screen_rect;
507
CGError error;
509
510
511
512
/* Destroy any previous mode */
if (video_set == SDL_TRUE)
QZ_UnsetVideoMode (this);
513
/* See if requested mode exists */
514
515
516
mode = CGDisplayBestModeForParameters (display_id, bpp, width,
height, &exact_match);
517
518
/* Require an exact match to the requested mode */
if ( ! exact_match ) {
519
SDL_SetError ("Failed to find display resolution: %dx%dx%d", width, height, bpp);
520
521
goto ERR_NO_MATCH;
}
523
524
525
/* Fade display to zero gamma */
gamma_error = QZ_FadeGammaOut (this, &gamma_table);
526
/* Put up the blanking window (a window above all other windows) */
527
528
529
530
531
532
if (getenv ("SDL_SINGLEDISPLAY"))
error = CGDisplayCapture (display_id);
else
error = CGCaptureAllDisplays ();
if ( CGDisplayNoErr != error ) {
533
534
535
SDL_SetError ("Failed capturing display");
goto ERR_NO_CAPTURE;
}
537
538
539
540
541
/* Do the physical switch */
if ( CGDisplayNoErr != CGDisplaySwitchToMode (display_id, mode) ) {
SDL_SetError ("Failed switching display resolution");
goto ERR_NO_SWITCH;
}
543
544
545
current->pixels = (Uint32*) CGDisplayBaseAddress (display_id);
current->pitch = CGDisplayBytesPerRow (display_id);
546
current->flags = 0;
547
548
current->w = width;
current->h = height;
549
current->flags |= SDL_FULLSCREEN;
550
current->flags |= SDL_HWSURFACE;
551
552
553
554
555
current->flags |= SDL_PREALLOC;
this->UpdateRects = QZ_DirectUpdate;
this->LockHWSurface = QZ_LockHWSurface;
this->UnlockHWSurface = QZ_UnlockHWSurface;
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
/* 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);
593
594
if ( CGDisplayCanSetPalette (display_id) )
current->flags |= SDL_HWPALETTE;
596
597
598
599
600
/* Setup OpenGL for a fullscreen context */
if (flags & SDL_OPENGL) {
CGLError err;
CGLContextObj ctx;
602
if ( ! QZ_SetupOpenGL (this, bpp, flags) ) {
603
goto ERR_NO_GL;
606
607
ctx = [ gl_context cglContext ];
err = CGLSetFullScreen (ctx);
609
if (err) {
610
SDL_SetError ("Error setting OpenGL fullscreen: %s", CGLErrorString(err));
611
612
goto ERR_NO_GL;
}
614
[ gl_context makeCurrentContext];
615
616
617
618
glClear (GL_COLOR_BUFFER_BIT);
[ gl_context flushBuffer ];
620
621
622
623
624
current->flags |= SDL_OPENGL;
}
/* If we don't hide menu bar, it will get events and interrupt the program */
HideMenuBar ();
625
626
627
628
/* Fade the display to original gamma */
if (! gamma_error )
QZ_FadeGammaIn (this, &gamma_table);
631
632
633
634
635
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.
636
637
638
639
*/
screen_rect = NSMakeRect(0,0,width,height);
[ [ NSScreen mainScreen ] setFrame:screen_rect ];
640
641
/* Save the flags to ensure correct tear-down */
mode_flags = current->flags;
643
644
return current;
645
/* Since the blanking window covers *all* windows (even force quit) correct recovery is crucial */
646
647
648
ERR_NO_GL:
ERR_DOUBLEBUF: CGDisplaySwitchToMode (display_id, save_mode);
ERR_NO_SWITCH: CGReleaseAllDisplays ();
649
ERR_NO_CAPTURE: if (!gamma_error) { QZ_FadeGammaIn (this, &gamma_table); }
650
ERR_NO_MATCH: return NULL;
651
652
653
}
static SDL_Surface* QZ_SetVideoWindowed (_THIS, SDL_Surface *current, int width,
654
int height, int bpp, Uint32 flags) {
655
unsigned int style;
656
NSRect contentRect;
657
BOOL isCustom = NO;
658
659
int center_window = 1;
int origin_x, origin_y;
661
662
current->flags = 0;
current->w = width;
663
current->h = height;
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
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);
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
/* 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;
}
}
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
/* 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;
}
}
731
732
733
734
735
736
if ( QZ_WindowPosition(this, &origin_x, &origin_y) ) {
center_window = 0;
contentRect.origin.x = (float)origin_x;
contentRect.origin.y = (float)origin_y;
}
737
738
739
740
741
742
743
744
745
746
747
748
/* 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;
}
749
//[ qz_window setReleasedWhenClosed:YES ];
750
751
752
QZ_SetCaption(this, this->wm_title, this->wm_icon);
[ qz_window setAcceptsMouseMovedEvents:YES ];
[ qz_window setViewsNeedDisplay:NO ];
753
754
755
if ( center_window ) {
[ qz_window center ];
}
756
757
758
759
760
761
[ qz_window setDelegate:
[ [ [ SDL_QuartzWindowDelegate alloc ] init ] autorelease ] ];
}
/* We already have a window, just change its size */
else {
762
763
764
if (!isCustom) {
[ qz_window setContentSize:contentRect.size ];
current->flags |= (SDL_NOFRAME|SDL_RESIZABLE) & mode_flags;
765
[ window_view setFrameSize:contentRect.size ];
769
/* For OpenGL, we bind the context to a subview */
770
if ( flags & SDL_OPENGL ) {
772
773
774
if ( ! QZ_SetupOpenGL (this, bpp, flags) ) {
return NULL;
}
776
window_view = [ [ NSView alloc ] initWithFrame:contentRect ];
777
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
778
779
780
[ [ qz_window contentView ] addSubview:window_view ];
[ gl_context setView: window_view ];
[ window_view release ];
781
[ gl_context makeCurrentContext];
782
[ qz_window makeKeyAndOrderFront:nil ];
783
784
current->flags |= SDL_OPENGL;
}
785
/* For 2D, we set the subview to an NSQuickDrawView */
788
789
790
/* Only recreate the view if it doesn't already exist */
if (window_view == nil) {
791
window_view = [ [ NSQuickDrawView alloc ] initWithFrame:contentRect ];
792
[ window_view setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
793
794
795
796
797
[ [ qz_window contentView ] addSubview:window_view ];
[ window_view release ];
[ qz_window makeKeyAndOrderFront:nil ];
}
798
799
800
LockPortBits ( [ window_view qdPort ] );
current->pixels = GetPixBaseAddr ( GetPortPixMap ( [ window_view qdPort ] ) );
current->pitch = GetPixRowBytes ( GetPortPixMap ( [ window_view qdPort ] ) );
801
UnlockPortBits ( [ window_view qdPort ] );
803
804
current->flags |= SDL_SWSURFACE;
current->flags |= SDL_PREALLOC;
805
806
current->flags |= SDL_ASYNCBLIT;
807
808
809
810
811
812
813
814
815
816
817
818
/*
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 * (device_bpp/8);
}
819
820
821
this->UpdateRects = QZ_UpdateRects;
this->LockHWSurface = QZ_LockWindow;
this->UnlockHWSurface = QZ_UnlockWindow;
824
825
/* Save flags to ensure correct teardown */
mode_flags = current->flags;
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;
836
837
838
839
840
841
842
843
844
/* 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 */
845
bpp = device_bpp;
846
847
848
849
current = QZ_SetVideoWindowed (this, current, width, height, bpp, flags);
if (current == NULL)
return NULL;
}
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
rmask = 0x00FF0000;
gmask = 0x0000FF00;
bmask = 0x000000FF;
break;
}
876
877
if ( ! SDL_ReallocFormat (current, bpp,
rmask, gmask, bmask, amask ) ) {
878
879
880
SDL_SetError ("Couldn't reallocate pixel format");
return NULL;
}
883
/* Signal successful completion (used internally) */
884
video_set = SDL_TRUE;
886
887
888
return current;
}
889
static int QZ_ToggleFullScreen (_THIS, int on) {
893
894
static int QZ_SetColors (_THIS, int first_color, int num_colors,
SDL_Color *colors) {
895
896
897
CGTableCount index;
CGDeviceColor color;
899
for (index = first_color; index < first_color+num_colors; index++) {
901
902
903
904
/* 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;
908
909
CGPaletteSetColorAtIndex (palette, color, index);
}
911
912
if ( CGDisplayNoErr != CGDisplaySetPalette (display_id, palette) )
return 0;
914
915
916
return 1;
}
917
918
919
920
921
922
923
924
925
926
927
928
929
930
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
{
931
UInt64 i;
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
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;
}
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 */