summaryrefslogtreecommitdiff
path: root/src/video/cocoa/wnd_quickdraw.mm
blob: 0d9b3ee4dfe690c9e873ab4ffedade7a267376b1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
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
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
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
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
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
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
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
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
/* $Id$ */

/******************************************************************************
 *                             Cocoa video driver                             *
 * Known things left to do:                                                   *
 *  List available resolutions.                                               *
 ******************************************************************************/

#ifdef WITH_COCOA
#ifdef ENABLE_COCOA_QUICKDRAW

#define MAC_OS_X_VERSION_MIN_REQUIRED    MAC_OS_X_VERSION_10_3
#define MAC_OS_X_VERSION_MAX_ALLOWED     MAC_OS_X_VERSION_10_3
#include <AvailabilityMacros.h>

#import <Cocoa/Cocoa.h>
#import <sys/time.h> /* gettimeofday */
#import <sys/param.h> /* for MAXPATHLEN */
#import <unistd.h>

/**
 * Important notice regarding all modifications!!!!!!!
 * There are certain limitations because the file is objective C++.
 * gdb has limitations.
 * C++ and objective C code can't be joined in all cases (classes stuff).
 * Read http://developer.apple.com/releasenotes/Cocoa/Objective-C++.html for more information.
 */


/* Defined in stdbool.h */
#ifndef __cplusplus
# ifndef __BEOS__
#  undef bool
#  undef false
#  undef true
# endif
#endif


#include "../../stdafx.h"
#include "../../debug.h"
#include "../../rev.h"
#include "../../core/geometry_type.hpp"
#include "cocoa_v.h"
#include "../../core/math_func.hpp"
#include "../../gfx_func.h"
#include "../../functions.h"

#undef Rect


class WindowQuickdrawSubdriver;


/* Subclass of NSWindow to fix genie effect and support resize events  */
@interface OTTD_QuickdrawWindow : NSWindow {
	WindowQuickdrawSubdriver *driver;
}

- (void)setDriver:(WindowQuickdrawSubdriver*)drv;

- (void)miniaturize:(id)sender;
- (void)display;
- (void)setFrame:(NSRect)frameRect display:(BOOL)flag;
- (void)appDidHide:(NSNotification*)note;
- (void)appWillUnhide:(NSNotification*)note;
- (void)appDidUnhide:(NSNotification*)note;
- (id)initWithContentRect:(NSRect)contentRect styleMask:(unsigned int)styleMask backing:(NSBackingStoreType)backingType defer:(BOOL)flag;
@end

/* Delegate for our NSWindow to send ask for quit on close */
@interface OTTD_QuickdrawWindowDelegate : NSObject{
	WindowQuickdrawSubdriver *driver;
}

- (void)setDriver:(WindowQuickdrawSubdriver*)drv;

- (BOOL)windowShouldClose:(id)sender;
@end

class WindowQuickdrawSubdriver: public CocoaSubdriver {
	int device_width;
	int device_height;
	int device_depth;

	int window_width;
	int window_height;
	int window_pitch;

	int buffer_depth;

	void *pixel_buffer;
	void *window_buffer;

	OTTD_QuickdrawWindow *window;

	#define MAX_DIRTY_RECTS 100
	Rect dirty_rects[MAX_DIRTY_RECTS];
	int num_dirty_rects;

	uint16 palette16[256];
	uint32 palette32[256];

public:
	bool active;
	bool setup;

	NSQuickDrawView *qdview;

private:
	void GetDeviceInfo();

	bool SetVideoMode(int width, int height);

	/**
	 * This function copies 32bpp pixels from the screen buffer in 16bpp windowed mode.
	 *
	 * @param left The x coord for the left edge of the box to blit.
	 * @param top The y coord for the top edge of the box to blit.
	 * @param right The x coord for the right edge of the box to blit.
	 * @param bottom The y coord for the bottom edge of the box to blit.
	 */
	void Blit32ToView32(int left, int top, int right, int bottom);

	/**
	 * This function copies 8bpp pixels from the screen buffer in 32bpp windowed mode.
	 *
	 * @param left The x coord for the left edge of the box to blit.
	 * @param top The y coord for the top edge of the box to blit.
	 * @param right The x coord for the right edge of the box to blit.
	 * @param bottom The y coord for the bottom edge of the box to blit.
	 */
	void BlitIndexedToView32(int left, int top, int right, int bottom);

	/**
	 * This function copies 8bpp pixels from the screen buffer in 16bpp windowed mode.
	 *
	 * @param left The x coord for the left edge of the box to blit.
	 * @param top The y coord for the top edge of the box to blit.
	 * @param right The x coord for the right edge of the box to blit.
	 * @param bottom The y coord for the bottom edge of the box to blit.
	 */
	void BlitIndexedToView16(int left, int top, int right, int bottom);

	inline void BlitToView(int left, int top, int right, int bottom);
	void DrawResizeIcon();


public:
	WindowQuickdrawSubdriver(int bpp);
	virtual ~WindowQuickdrawSubdriver();

	virtual void Draw();
	virtual void MakeDirty(int left, int top, int width, int height);
	virtual void UpdatePalette(uint first_color, uint num_colors);

	virtual uint ListModes(OTTD_Point* modes, uint max_modes);

	virtual bool ChangeResolution(int w, int h);

	virtual bool IsFullscreen() { return false; }

	virtual int GetWidth() { return window_width; }
	virtual int GetHeight() { return window_height; }
	virtual void *GetPixelBuffer() { return pixel_buffer; }

	/* Convert local coordinate to window server (CoreGraphics) coordinate */
	virtual CGPoint PrivateLocalToCG(NSPoint* p);

	virtual NSPoint GetMouseLocation(NSEvent *event);
	virtual bool MouseIsInsideView(NSPoint *pt);

	virtual bool IsActive() { return active; }


	void SetPortAlphaOpaque();
	bool WindowResized();
};


@implementation OTTD_QuickdrawWindow

- (void)setDriver:(WindowQuickdrawSubdriver*)drv
{
	driver = drv;
}


/* we override these methods to fix the miniaturize animation/dock icon bug */
- (void)miniaturize:(id)sender
{
	/* make the alpha channel opaque so anim won't have holes in it */
	driver->SetPortAlphaOpaque ();

	/* window is hidden now */
	driver->active = false;

	QZ_ShowMouse();

	[ super miniaturize:sender ];
}

- (void)display
{
	/* This method fires just before the window deminaturizes from the Dock.
	 * We'll save the current visible surface, let the window manager redraw any
	 * UI elements, and restore the surface. This way, no expose event
	 * is required, and the deminiaturize works perfectly.
	 */

	driver->SetPortAlphaOpaque();

	/* save current visible surface */
	[ self cacheImageInRect:[ driver->qdview frame ] ];

	/* let the window manager redraw controls, border, etc */
	[ super display ];

	/* restore visible surface */
	[ self restoreCachedImage ];

	/* window is visible again */
	driver->active = true;
}

- (void)setFrame:(NSRect)frameRect display:(BOOL)flag
{
	[ super setFrame:frameRect display:flag ];

	/* Don't do anything if the window is currently being created */
	if (driver->setup) return;

	if (!driver->WindowResized())
		error("Cocoa: Failed to resize window.");
}

- (void)appDidHide:(NSNotification*)note
{
	driver->active = false;
}


- (void)appWillUnhide:(NSNotification*)note
{
	driver->SetPortAlphaOpaque ();

	/* save current visible surface */
	[ self cacheImageInRect:[ driver->qdview frame ] ];
}

- (void)appDidUnhide:(NSNotification*)note
{
	/* restore cached image, since it may not be current, post expose event too */
	[ self restoreCachedImage ];

	driver->active = true;
}


- (id)initWithContentRect:(NSRect)contentRect styleMask:(unsigned int)styleMask backing:(NSBackingStoreType)backingType defer:(BOOL)flag
{
	/* Make our window subclass receive these application notifications */
	[ [ NSNotificationCenter defaultCenter ] addObserver:self
	selector:@selector(appDidHide:) name:NSApplicationDidHideNotification object:NSApp ];

	[ [ NSNotificationCenter defaultCenter ] addObserver:self
	selector:@selector(appDidUnhide:) name:NSApplicationDidUnhideNotification object:NSApp ];

	[ [ NSNotificationCenter defaultCenter ] addObserver:self
	selector:@selector(appWillUnhide:) name:NSApplicationWillUnhideNotification object:NSApp ];

	return [ super initWithContentRect:contentRect styleMask:styleMask backing:backingType defer:flag ];
}

@end

@implementation OTTD_QuickdrawWindowDelegate
- (void)setDriver:(WindowQuickdrawSubdriver*)drv
{
	driver = drv;
}

- (BOOL)windowShouldClose:(id)sender
{
	HandleExitGameRequest();

	return NO;
}

- (void)windowDidBecomeKey:(NSNotification*)aNotification
{
	driver->active = true;
}

- (void)windowDidResignKey:(NSNotification*)aNotification
{
	driver->active = false;
}

- (void)windowDidBecomeMain:(NSNotification*)aNotification
{
	driver->active = true;
}

- (void)windowDidResignMain:(NSNotification*)aNotification
{
	driver->active = false;
}

@end


static const int _resize_icon_width  = 16;
static const int _resize_icon_height = 16;

static bool _resize_icon[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1,
	0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1,
	0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0,
	0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0,
	0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1,
	0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1,
	0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0,
	1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0
};


void WindowQuickdrawSubdriver::GetDeviceInfo()
{
	CFDictionaryRef    cur_mode;

	/* Initialize the video settings; this data persists between mode switches */
	cur_mode = CGDisplayCurrentMode(kCGDirectMainDisplay);

	/* Gather some information that is useful to know about the display */
	CFNumberGetValue(
		(const __CFNumber*)CFDictionaryGetValue(cur_mode, kCGDisplayBitsPerPixel),
		kCFNumberSInt32Type, &device_depth
	);

	CFNumberGetValue(
		(const __CFNumber*)CFDictionaryGetValue(cur_mode, kCGDisplayWidth),
		kCFNumberSInt32Type, &device_width
	);

	CFNumberGetValue(
		(const __CFNumber*)CFDictionaryGetValue(cur_mode, kCGDisplayHeight),
		kCFNumberSInt32Type, &device_height
	);
}

bool WindowQuickdrawSubdriver::SetVideoMode(int width, int height)
{
	char caption[50];
	NSString *nsscaption;
	unsigned int style;
	NSRect contentRect;
	BOOL isCustom = NO;
	bool ret;

	setup = true;

	GetDeviceInfo();

	if (buffer_depth > device_depth) {
		DEBUG(driver, 0, "Cannot use a blitter with a higer screen depth than the display when running in windowed mode.");
		setup = false;
		return false;
	}

	if (width > device_width)
		width = device_width;
	if (height > device_height)
		height = device_height;

	contentRect = NSMakeRect(0, 0, width, height);

	/* Check if we should recreate the window */
	if (window == nil) {
		OTTD_QuickdrawWindowDelegate *delegate;

		/* Set the window style */
		style = NSTitledWindowMask;
		style |= (NSMiniaturizableWindowMask | NSClosableWindowMask);
		style |= NSResizableWindowMask;

		/* Manually create a window, avoids having a nib file resource */
		window = [ [ OTTD_QuickdrawWindow alloc ]
						initWithContentRect:contentRect
						styleMask:style
						backing:NSBackingStoreBuffered
						defer:NO ];

		if (window == nil) {
			DEBUG(driver, 0, "Could not create the Cocoa window.");
			setup = false;
			return false;
		}

		[ window setDriver:this ];

		snprintf(caption, sizeof(caption), "OpenTTD %s", _openttd_revision);
		nsscaption = [ [ NSString alloc ] initWithCString:caption ];
		[ window setTitle:nsscaption ];
		[ window setMiniwindowTitle:nsscaption ];
		[ nsscaption release ];

		[ window setAcceptsMouseMovedEvents:YES ];
		[ window setViewsNeedDisplay:NO ];

		delegate = [ [ OTTD_QuickdrawWindowDelegate alloc ] init ];
		[ delegate setDriver:this ];
		[ window setDelegate: [ delegate autorelease ] ];
	} else {
		/* We already have a window, just change its size */
		if (!isCustom) {
			[ window setContentSize:contentRect.size ];
			// Ensure frame height - title bar height >= view height
			contentRect.size.height = Clamp(height, 0, [ window frame ].size.height - 22 /* 22 is the height of title bar of window*/);
			height = contentRect.size.height;
			[ qdview setFrameSize:contentRect.size ];
		}
	}

	// Update again
	window_width = width;
	window_height = height;

	[ window center ];

	/* Only recreate the view if it doesn't already exist */
	if (qdview == nil) {
		qdview = [ [ NSQuickDrawView alloc ] initWithFrame:contentRect ];
		if (qdview == nil) {
			DEBUG(driver, 0, "Could not create the Quickdraw view.");
			setup = false;
			return false;
		}

		[ qdview setAutoresizingMask: NSViewWidthSizable | NSViewHeightSizable ];
		[ [ window contentView ] addSubview:qdview ];
		[ qdview release ];
		[ window makeKeyAndOrderFront:nil ];
	}

	ret = WindowResized();

	UpdatePalette(0, 256);

	setup = false;

	return ret;
}

void WindowQuickdrawSubdriver::Blit32ToView32(int left, int top, int right, int bottom)
{
	const uint32* src   = (uint32*)pixel_buffer;
	uint32*       dst   = (uint32*)window_buffer;
	uint          width = window_width;
	uint          pitch = window_pitch / 4;
	int y;


	dst += top * pitch + left;
	src += top * width + left;

	for (y = top; y < bottom; y++, dst+= pitch, src+= width) {
		memcpy(dst, src, (right - left) * 4);
	}
}

void WindowQuickdrawSubdriver::BlitIndexedToView32(int left, int top, int right, int bottom)
{
	const uint32* pal   = palette32;
	const uint8*  src   = (uint8*)pixel_buffer;
	uint32*       dst   = (uint32*)window_buffer;
	uint          width = window_width;
	uint          pitch = window_pitch / 4;
	int x;
	int y;

	for (y = top; y < bottom; y++) {
		for (x = left; x < right; x++) {
			dst[y * pitch + x] = pal[src[y * width + x]];
		}
	}
}

void WindowQuickdrawSubdriver::BlitIndexedToView16(int left, int top, int right, int bottom)
{
	const uint16* pal   = palette16;
	const uint8*  src   = (uint8*)pixel_buffer;
	uint16*       dst   = (uint16*)window_buffer;
	uint          width = window_width;
	uint          pitch = window_pitch / 2;
	int x;
	int y;

	for (y = top; y < bottom; y++) {
		for (x = left; x < right; x++) {
			dst[y * pitch + x] = pal[src[y * width + x]];
		}
	}
}


inline void WindowQuickdrawSubdriver::BlitToView(int left, int top, int right, int bottom)
{
	switch (device_depth) {
		case 32:
			switch(buffer_depth) {
				case 32:
					Blit32ToView32(left, top, right, bottom);
					break;
				case 8:
					BlitIndexedToView32(left, top, right, bottom);
					break;
			}
			break;
		case 16:
			BlitIndexedToView16(left, top, right, bottom);
			break;
	}
}

void WindowQuickdrawSubdriver::DrawResizeIcon()
{
	int xoff = window_width - _resize_icon_width;
	int yoff = window_height - _resize_icon_height;
	int x;
	int y;

	switch (device_depth) {
		case 32:
			for (y = 0; y < _resize_icon_height; y++) {
				uint32* trg = (uint32*)window_buffer + (yoff + y) * window_pitch / 4 + xoff;

				for (x = 0; x < _resize_icon_width; x++, trg++) {
					if (_resize_icon[y * _resize_icon_width + x]) *trg = 0xff000000;
				}
			}
			break;
		case 16:
			for (y = 0; y < _resize_icon_height; y++) {
				uint16* trg = (uint16*)window_buffer + (yoff + y) * window_pitch / 2 + xoff;

				for (x = 0; x < _resize_icon_width; x++, trg++) {
					if (_resize_icon[y * _resize_icon_width + x]) *trg = 0x0000;
				}
			}
			break;
	}
}


WindowQuickdrawSubdriver::WindowQuickdrawSubdriver(int bpp)
{
	window_width  = 0;
	window_height = 0;
	buffer_depth  = bpp;
	pixel_buffer  = NULL;
	active        = false;
	setup         = false;

	window = nil;
	qdview = nil;

	num_dirty_rects = MAX_DIRTY_RECTS;
}

WindowQuickdrawSubdriver::~WindowQuickdrawSubdriver()
{
	QZ_ShowMouse();

	/* Release window mode resources */
	if (window != nil) [ window close ];

	free(pixel_buffer);
}

void WindowQuickdrawSubdriver::Draw()
{
	int i;
	RgnHandle dirty, temp;

	/* Check if we need to do anything */
	if (num_dirty_rects == 0 ||
		[ window isMiniaturized ]) {
		return;
	}

	if (num_dirty_rects >= MAX_DIRTY_RECTS) {
		num_dirty_rects = 1;
		dirty_rects[0].left = 0;
		dirty_rects[0].top = 0;
		dirty_rects[0].right = window_width;
		dirty_rects[0].bottom = window_height;
	}

	dirty = NewRgn();
	temp  = NewRgn();

	SetEmptyRgn(dirty);

	/* Build the region of dirty rectangles */
	for (i = 0; i < num_dirty_rects; i++) {
		BlitToView(
			dirty_rects[i].left,
			dirty_rects[i].top,
			dirty_rects[i].right,
			dirty_rects[i].bottom
		);

		MacSetRectRgn(
			temp,
			dirty_rects[i].left,
			dirty_rects[i].top,
			dirty_rects[i].right,
			dirty_rects[i].bottom
		);
		MacUnionRgn(dirty, temp, dirty);
	}

	DrawResizeIcon();

	/* Flush the dirty region */
	QDFlushPortBuffer( (OpaqueGrafPtr*) [ qdview qdPort ], dirty);
	DisposeRgn(dirty);
	DisposeRgn(temp);

	num_dirty_rects = 0;
}

void WindowQuickdrawSubdriver::MakeDirty(int left, int top, int width, int height)
{
	if (num_dirty_rects < MAX_DIRTY_RECTS) {
		dirty_rects[num_dirty_rects].left = left;
		dirty_rects[num_dirty_rects].top = top;
		dirty_rects[num_dirty_rects].right = left + width;
		dirty_rects[num_dirty_rects].bottom = top + height;
	}
	num_dirty_rects++;
}

void WindowQuickdrawSubdriver::UpdatePalette(uint first_color, uint num_colors)
{
	uint i;

	if (buffer_depth != 8)
		return;

	switch (device_depth) {
		case 32:
			for (i = first_color; i < first_color + num_colors; i++) {
				uint32 clr32 = 0xff000000;
				clr32 |= (uint32)_cur_palette[i].r << 16;
				clr32 |= (uint32)_cur_palette[i].g << 8;
				clr32 |= (uint32)_cur_palette[i].b;
				palette32[i] = clr32;
			}
			break;
		case 16:
			for (i = first_color; i < first_color + num_colors; i++) {
				uint16 clr16 = 0x0000;
				clr16 |= (uint16)((_cur_palette[i].r >> 3) & 0x1f) << 10;
				clr16 |= (uint16)((_cur_palette[i].g >> 3) & 0x1f) << 5;
				clr16 |= (uint16)((_cur_palette[i].b >> 3) & 0x1f);
				palette16[i] = clr16;
			}
			break;
	}

	num_dirty_rects = MAX_DIRTY_RECTS;
}

uint WindowQuickdrawSubdriver::ListModes(OTTD_Point* modes, uint max_modes)
{
	return QZ_ListModes(modes, max_modes, kCGDirectMainDisplay, buffer_depth);
}

bool WindowQuickdrawSubdriver::ChangeResolution(int w, int h)
{
	int old_width  = window_width;
	int old_height = window_height;

	if (SetVideoMode(w, h))
		return true;

	if (old_width != 0 && old_height != 0)
		SetVideoMode(old_width, old_height);

	return false;
}

/* Convert local coordinate to window server (CoreGraphics) coordinate */
CGPoint WindowQuickdrawSubdriver::PrivateLocalToCG(NSPoint* p)
{
	CGPoint cgp;

	*p = [ qdview convertPoint:*p toView: nil ];
	*p = [ window convertBaseToScreen:*p ];
	p->y = device_height - p->y;

	cgp.x = p->x;
	cgp.y = p->y;

	return cgp;
}

NSPoint WindowQuickdrawSubdriver::GetMouseLocation(NSEvent *event)
{
	NSPoint pt;

	pt = [ event locationInWindow ];
	pt = [ qdview convertPoint:pt fromView:nil ];

	return pt;
}

bool WindowQuickdrawSubdriver::MouseIsInsideView(NSPoint *pt)
{
	return [ qdview mouse:*pt inRect:[ qdview bounds ] ];
}


/* This function makes the *game region* of the window 100% opaque.
 * The genie effect uses the alpha component. Otherwise,
 * it doesn't seem to matter what value it has.
 */
void WindowQuickdrawSubdriver::SetPortAlphaOpaque()
{
	if (device_depth != 32)
		return;

	uint32* pixels = (uint32*)window_buffer;
	uint32  pitch  = window_pitch / 4;
	int x, y;

	for (y = 0; y < window_height; y++)
		for (x = 0; x < window_width; x++) {
		pixels[y * pitch + x] |= 0xFF000000;
	}
}

bool WindowQuickdrawSubdriver::WindowResized()
{
	if (window == nil || qdview == nil) return true;

	NSRect   newframe = [ qdview frame ];
	CGrafPtr thePort  = (OpaqueGrafPtr*) [ qdview qdPort ];
	int voff, hoff;

	LockPortBits(thePort);
	window_buffer = GetPixBaseAddr(GetPortPixMap(thePort));
	window_pitch = GetPixRowBytes(GetPortPixMap(thePort));
	UnlockPortBits(thePort);

	/* _cocoa_video_data.realpixels now points to the window's pixels
	 * We want it to point to the *view's* pixels
	 */
	voff = [ window frame ].size.height - newframe.size.height - newframe.origin.y;
	hoff = [ qdview frame ].origin.x;
	window_buffer = (uint8*)window_buffer + (voff * window_pitch) + hoff * (device_depth / 8);

	window_width = newframe.size.width;
	window_height = newframe.size.height;

	free(pixel_buffer);
	pixel_buffer = malloc(window_width * window_height * buffer_depth / 8);
	if (pixel_buffer == NULL) {
		DEBUG(driver, 0, "Failed to allocate pixel buffer");
		return false;
	}

	QZ_GameSizeChanged();

	/* Redraw screen */
	num_dirty_rects = MAX_DIRTY_RECTS;

	return true;
}


CocoaSubdriver *QZ_CreateWindowQuickdrawSubdriver(int width, int height, int bpp)
{
	WindowQuickdrawSubdriver *ret;

	if (MacOSVersionIsAtLeast(10, 5, 0)) {
		DEBUG(driver, 0, "The cocoa quickdraw subdriver is not recommended for Mac OS X 10.5 or later.");
	}

	if (bpp != 8 && bpp != 32) {
		DEBUG(driver, 0, "The cocoa quickdraw subdriver only supports 8 and 32 bpp.");
		return NULL;
	}

	ret = new WindowQuickdrawSubdriver(bpp);

	if (!ret->ChangeResolution(width, height)) {
		delete ret;
		return NULL;
	}

	return ret;
}

#endif /* ENABLE_COCOA_QUICKDRAW */
#endif /* WITH_COCOA */