aboutsummaryrefslogtreecommitdiffstats
path: root/src/gdisp/gdisp_options.h
blob: d624a763b61f3a535289bac4c4bde6836cd29977 (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
/*
 * This file is subject to the terms of the GFX License. If a copy of
 * the license was not distributed with this file, you can obtain one at:
 *
 *              http://ugfx.org/license.html
 */

/**
 * @file    src/gdisp/gdisp_options.h
 * @brief   GDISP sub-system options header file.
 *
 * @addtogroup GDISP
 * @{
 */

#ifndef _GDISP_OPTIONS_H
#define _GDISP_OPTIONS_H

/**
 * @name    GDISP Functionality to be included
 * @{
 */
	/**
	 * @brief   Should drawing operations be automatically flushed.
	 * @details	Defaults to GFXOFF
	 * @note	If set to GFXOFF and the controller requires flushing
	 * 			then the application must manually call @p gdispGFlush().
	 * 			Setting this to GFXON causes GDISP to automatically flush
	 * 			after each drawing operation. Note this may be slow but enables
	 * 			an application to avoid having to manually call the flush routine.
	 * @note	If GFXON and GDISP_NEED_TIMERFLUSH is also GFXON, this takes precedence.
	 * @note	Most controllers don't need flushing which is why this is set to
	 * 			GFXOFF by default.
	 */
	#ifndef GDISP_NEED_AUTOFLUSH
		#define GDISP_NEED_AUTOFLUSH			GFXOFF
	#endif
	/**
	 * @brief   Should drawing operations be automatically flushed on a timer.
	 * @details	Defaults to GFXOFF, Can be set to GFXOFF or a timer period in milliseconds.
	 * @note	The period should not be set too short or it will consume all your CPU. A
	 * 			value between 250 and 500 milliseconds would probably be suitable.
	 * @note	If GFXON and GDISP_NEED_AUTOFLUSH is also GFXON, this is ineffective.
	 * @note	Most controllers don't need flushing which is why this is set to
	 * 			GFXOFF by default.
	 */
	#ifndef GDISP_NEED_TIMERFLUSH
		#define GDISP_NEED_TIMERFLUSH			GFXOFF
	#endif
	/**
	 * @brief   Should all operations be clipped to the screen and colors validated.
	 * @details	Defaults to GFXON.
	 * @note    If this is GFXOFF, any operations that extend beyond the
	 *          edge of the screen will have undefined results. Any
	 *			out-of-range colors will produce undefined results.
	 * @note	This should always be left as the default (GFXON) unless you
	 * 			are a maniac for speed and you have thoroughly tested your code
	 * 			and it never overwrites the edges of the screen.
	 * @note	Setting GDISP_NEED_CLIP to GFXON internally uses the same mechanism
	 * 			as this validation. There is no advantage in setting this GFXOFF if
	 * 			GDISP_NEED_CLIP is GFXON.
	 */
	#ifndef GDISP_NEED_VALIDATION
		#define GDISP_NEED_VALIDATION			GFXON
	#endif
	/**
	 * @brief   Are clipping functions needed.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_CLIP
		#define GDISP_NEED_CLIP					GFXON
	#endif
	/**
	 * @brief   Streaming functions are needed
	 * @details	Defaults to GFXOFF.
	 */
	#ifndef GDISP_NEED_STREAMING
		#define GDISP_NEED_STREAMING			GFXOFF
	#endif
	/**
	 * @brief   Are text functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	You must also define at least one font.
	 */
	#ifndef GDISP_NEED_TEXT
		#define GDISP_NEED_TEXT					GFXOFF
	#endif
	/**
	 * @brief   Are circle functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	Uses integer algorithms only. It does not use any trig or floating point.
	 */
	#ifndef GDISP_NEED_CIRCLE
		#define GDISP_NEED_CIRCLE				GFXOFF
	#endif
	/**
	 * @brief   Are dual circle functions needed (one circle inside another).
	 * @details	Defaults to GFXOFF
	 * @note	Uses integer algorithms only. It does not use any trig or floating point.
	 */
	#ifndef GDISP_NEED_DUALCIRCLE
		#define GDISP_NEED_DUALCIRCLE			GFXOFF
	#endif
	/**
	 * @brief   Are ellipse functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	Uses integer algorithms only. It does not use any trig or floating point.
	 */
	#ifndef GDISP_NEED_ELLIPSE
		#define GDISP_NEED_ELLIPSE				GFXOFF
	#endif
	/**
	 * @brief   Are arc sector functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	Uses integer algorithms only. It does not use any trig or floating point.
	 */
	#ifndef GDISP_NEED_ARCSECTORS
		#define GDISP_NEED_ARCSECTORS			GFXOFF
	#endif
	/**
	 * @brief   Are arc functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	This can be compiled using fully integer mathematics by
	 * 			defining GFX_USE_GMISC and GMISC_NEED_FIXEDTRIG as GFXON.
	 * @note	This can be compiled to use floating point but no trig functions
	 * 			by defining GFX_USE_GMISC and GMISC_NEED_FASTTRIG as GFXON.
	 * @note	If neither of the above are defined it requires the maths library
	 * 			to be included in the link to provide floating point and trig support.
	 * 			ie  include -lm in your compiler flags.
	 */
	#ifndef GDISP_NEED_ARC
		#define GDISP_NEED_ARC					GFXOFF
	#endif
	/**
	 * @brief   Are convex polygon functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	Convex polygons are those that have no internal angles. That is;
	 * 			you can draw a line from any point on the polygon to any other point
	 * 			on the polygon without it going outside the polygon.
	 */
	#ifndef GDISP_NEED_CONVEX_POLYGON
		#define GDISP_NEED_CONVEX_POLYGON		GFXOFF
	#endif
	/**
	 * @brief   Are scrolling functions needed.
	 * @details	Defaults to GFXOFF
	 * @note	This function must be supported by the low level GDISP driver
	 * 			you have included in your project. If it isn't, defining this
	 * 			option will cause a compile error.
	 */
	#ifndef GDISP_NEED_SCROLL
		#define GDISP_NEED_SCROLL				GFXOFF
	#endif
	/**
	 * @brief   Is the capability to read pixels back needed.
	 * @details	Defaults to GFXOFF
	 * @note	This function must be supported by the low level GDISP driver
	 * 			you have included in your project. If it isn't, defining this
	 * 			option will cause a compile error.
	 */
	#ifndef GDISP_NEED_PIXELREAD
		#define GDISP_NEED_PIXELREAD			GFXOFF
	#endif
	/**
	 * @brief   Control some aspect of the hardware operation.
	 * @details	Defaults to GFXOFF
	 * @note	This allows control of hardware specific features such as
	 * 			screen rotation, backlight levels, contrast etc
	 */
	#ifndef GDISP_NEED_CONTROL
		#define GDISP_NEED_CONTROL				GFXOFF
	#endif
	/**
	 * @brief   Query some aspect of the hardware operation.
	 * @details	Defaults to GFXOFF
	 * @note	This allows query of hardware specific features
	 */
	#ifndef GDISP_NEED_QUERY
		#define GDISP_NEED_QUERY				GFXOFF
	#endif
	/**
	 * @brief   Is the image interface required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE
		#define GDISP_NEED_IMAGE				GFXOFF
	#endif
	/**
	 * @brief   Is the image interface required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_PIXMAP
		#define GDISP_NEED_PIXMAP				GFXOFF
	#endif
/**
 * @}
 *
 * @name    GDISP Multi-Threading Options
 * @{
 */
	/**
	 * @brief   Do the drawing functions need to be thread-safe.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_MULTITHREAD
		#define GDISP_NEED_MULTITHREAD			GFXOFF
	#endif
/**
 * @}
 *
 * @name    GDISP Optional Parameters
 * @{
 */
	/**
	 * @brief	Should the startup logo be displayed
	 *
	 * @details Defaults to GFXON
	 */
	#ifndef GDISP_NEED_STARTUP_LOGO
		#define GDISP_NEED_STARTUP_LOGO 		GFXON
	#endif
	/**
	 * @brief	Define the initial background color for all displays in the system.
	 */
	#ifndef GDISP_STARTUP_COLOR
		#define GDISP_STARTUP_COLOR				GFX_BLACK
	#endif
	/**
	 * @brief	Define the default orientation for all displays in the system.
	 * @note	GDISP_NEED_CONTROL must also be set (and the hardware must support it)
	 * @note	If not specified then displays default to the native hardware orientation
	 */
	// #define GDISP_DEFAULT_ORIENTATION		gOrientationLandscape
	/**
	 * @brief   The size of pixel buffer (in pixels) used for optimization.
	 * @details	Set to zero to guarantee disabling of the buffer.
	 * @note	Depending on the driver and what operations the application
	 * 			needs, this buffer may never be allocated.
	 * @note	Setting the size to zero may cause some operations to not
	 * 			compile eg. Scrolling if there is no hardware scroll support.
	 * @note	Increasing the size will speedup certain operations
	 * 			at the expense of RAM.
	 * @note	Currently only used to support scrolling on hardware without
	 * 			scrolling support, and to increase the speed of streaming
	 * 			operations on non-streaming hardware where there is a
	 * 			hardware supported bit-blit.
	 */
	#ifndef GDISP_LINEBUF_SIZE
		#define GDISP_LINEBUF_SIZE				128
	#endif
/**
 * @}
 *
 * @name    GDISP Multiple Display Support
 * @{
 */
	/**
	 * @brief   The total number of displays using the default driver.
	 * @note	If you want to use multiple displays either set GDISP_TOTAL_DISPLAYS or GDISP_DRIVER_LIST
	 *          but not both.
	 */
	#ifndef GDISP_TOTAL_DISPLAYS
		#define GDISP_TOTAL_DISPLAYS		1
	#endif
	#if defined(__DOXYGEN__)
		/**
		 * @brief   The list of display drivers.
		 * @note	Replace this example with your own definition in your gfxconf.h file. See the gdisp_lld.c
		 *          in each driver (near the top) to get the name of the VMT for a driver.
		 * @note    The same driver can occur more than once in the list to create an extra instance of that driver.
		 * @note    If defining this you must also define GDISP_PIXELFORMAT for your application to use.
         *          Choose a value that is most common accross all your drivers for efficiency.
         * @note    If using this you may optionally define the GDISP_HARDWARE_xxx values as either GFXON or GFXOFF.
         *          Doing this causes GDISP to assume that all (GFXON) or none (GFXOFF) of the listed drivers have that
         *          capability. This can help improve drawing speed and efficiency.
		 */
		#define GDISP_DRIVER_LIST		  GDISPVMT_Win32, GDISPVMT_SSD1963
	#endif
/**
 * @}
 *
 * @name    GDISP Image Options
 * @pre		GDISP_NEED_IMAGE must be GFXON
 * @{
 */
	/**
	 * @brief   Is native image decoding required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_NATIVE
		#define GDISP_NEED_IMAGE_NATIVE			GFXOFF
	#endif
	/**
	 * @brief   Is GIF image decoding required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_GIF
		#define GDISP_NEED_IMAGE_GIF			GFXOFF
	#endif
	/**
	 * @brief   Is BMP image decoding required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_BMP
		#define GDISP_NEED_IMAGE_BMP			GFXOFF
	#endif
	/**
	 * @brief   Is JPG image decoding required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_JPG
		#define GDISP_NEED_IMAGE_JPG			GFXOFF
	#endif
	/**
	 * @brief   Is PNG image decoding required.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_PNG
		#define GDISP_NEED_IMAGE_PNG			GFXOFF
	#endif
	/**
	 * @brief   Is memory accounting required during image decoding.
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_IMAGE_ACCOUNTING
		#define GDISP_NEED_IMAGE_ACCOUNTING		GFXOFF
	#endif
/**
 * @}
 *
 * @name    GDISP BMP Image Options
 * @pre		GDISP_NEED_IMAGE and GDISP_NEED_IMAGE_BMP must be GFXON
 * @{
 */
	/**
	 * @brief   Is BMP 1 bit per pixel (monochrome/2 color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_1
		#define GDISP_NEED_IMAGE_BMP_1		GFXON
	#endif
	/**
	 * @brief   Is BMP 4 bits per pixel (16 color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_4
		#define GDISP_NEED_IMAGE_BMP_4		GFXON
	#endif
	/**
	 * @brief   Is BMP 4 bits per pixel (16 color) with RLE compression image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_4_RLE
		#define GDISP_NEED_IMAGE_BMP_4_RLE	GFXON
	#endif
	/**
	 * @brief   Is BMP 8 bits per pixel (256 color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_8
		#define GDISP_NEED_IMAGE_BMP_8		GFXON
	#endif
	/**
	 * @brief   Is BMP 8 bits per pixel (256 color) with RLE compression image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_8_RLE
		#define GDISP_NEED_IMAGE_BMP_8_RLE	GFXON
	#endif
	/**
	 * @brief   Is BMP 16 bits per pixel (65536 color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_16
		#define GDISP_NEED_IMAGE_BMP_16		GFXON
	#endif
	/**
	 * @brief   Is BMP 24 bits per pixel (true-color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_24
		#define GDISP_NEED_IMAGE_BMP_24		GFXON
	#endif
	/**
	 * @brief   Is BMP 32 bits per pixel (true-color) image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_BMP_32
		#define GDISP_NEED_IMAGE_BMP_32		GFXON
	#endif
	/**
	 * @brief   The BMP blit buffer size.
	 * @details	Defaults to 32
	 * @note 	Bigger is faster but requires more RAM.
	 * @note 	This must be greater than 40 bytes and 32 pixels as we read our headers into this space as well.
	 */
	#ifndef GDISP_IMAGE_BMP_BLIT_BUFFER_SIZE
		#define GDISP_IMAGE_BMP_BLIT_BUFFER_SIZE	32
	#endif
/**
 * @}
 *
 * @name    GDISP GIF Image Options
 * @pre		GDISP_NEED_IMAGE and GDISP_NEED_IMAGE_GIF must be GFXON
 * @{
 */
	/**
	 * @brief   The GIF blit buffer size.
	 * @details	Defaults to 32
	 * @note 	Bigger is faster but requires more RAM.
	 */
	#ifndef GDISP_IMAGE_GIF_BLIT_BUFFER_SIZE
		#define GDISP_IMAGE_GIF_BLIT_BUFFER_SIZE	32
	#endif
/**
 * @}
 *
 * @name    GDISP PNG Image Options
 * @pre		GDISP_NEED_IMAGE and GDISP_NEED_IMAGE_PNG must be GFXON
 * @{
 */
	/**
	 * @brief   Is PNG Interlaced image decoding required.
	 * @details	Defaults to GFXOFF
	 * @note	Currently not supported due to the complex decoding and display requirements
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_INTERLACED
		#define GDISP_NEED_IMAGE_PNG_INTERLACED			GFXOFF
	#endif
	/**
	 * @brief   Is PNG image transparency processed.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_TRANSPARENCY
		#define GDISP_NEED_IMAGE_PNG_TRANSPARENCY		GFXON
	#endif
	/**
	 * @brief   Is PNG background data processed.
	 * @details	Defaults to GFXON
	 * @note	If the background is specified in the image file and this define is GFXON,
	 * 			that background color is used for transparency and alpha blending.
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_BACKGROUND
		#define GDISP_NEED_IMAGE_PNG_BACKGROUND			GFXON
	#endif
	/**
	 * @brief   What is the cliff between non-blended alpha pixels being displayed or not.
	 * @details	Range of 0 to 255
	 * @note	If GDISP_NEED_IMAGE_PNG_BACKGROUND is GFXON and the PNG file contains a
	 * 			background color then the pixel will be blended with the background color
	 * 			according to the alpha.
	 * 			If not then no blending occurs. The pixel will either be set or not.
	 * 			Any alpha value greater or equal to this number will be displayed.
	 * 			Anything less than this number is not displayed.
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_ALPHACLIFF
		#define GDISP_NEED_IMAGE_PNG_ALPHACLIFF			32
	#endif
	/**
	 * @brief   Is 1, 2 and 4 bit PNG palettized image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_PALETTE_124
		#define GDISP_NEED_IMAGE_PNG_PALETTE_124		GFXON
	#endif
	/**
	 * @brief   Is 8 bit PNG palettized image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_PALETTE_8
		#define GDISP_NEED_IMAGE_PNG_PALETTE_8			GFXON
	#endif
	/**
	 * @brief   Is 1,2 and 4 bit PNG grayscale image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_GRAYSCALE_124
		#define GDISP_NEED_IMAGE_PNG_GRAYSCALE_124		GFXON
	#endif
	/**
	 * @brief   Is 8 bit PNG grayscale image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_GRAYSCALE_8
		#define GDISP_NEED_IMAGE_PNG_GRAYSCALE_8		GFXON
	#endif
	/**
	 * @brief   Is 16 bit PNG grayscale image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_GRAYSCALE_16
		#define GDISP_NEED_IMAGE_PNG_GRAYSCALE_16		GFXON
	#endif
	/**
	 * @brief   Is 8 bit PNG grayscale with 8 bit alpha image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_GRAYALPHA_8
		#define GDISP_NEED_IMAGE_PNG_GRAYALPHA_8		GFXON
	#endif
	/**
	 * @brief   Is 16 bit PNG grayscale with 16 bit alpha image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_GRAYALPHA_16
		#define GDISP_NEED_IMAGE_PNG_GRAYALPHA_16		GFXON
	#endif
	/**
	 * @brief   Is 8/8/8 bit PNG RGB image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_RGB_8
		#define GDISP_NEED_IMAGE_PNG_RGB_8				GFXON
	#endif
	/**
	 * @brief   Is 16/16/16 bit PNG RGB image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_RGB_16
		#define GDISP_NEED_IMAGE_PNG_RGB_16				GFXON
	#endif
	/**
	 * @brief   Is 8/8/8 bit PNG RGB with 8 bit alpha image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_RGBALPHA_8
		#define GDISP_NEED_IMAGE_PNG_RGBALPHA_8			GFXON
	#endif
	/**
	 * @brief   Is 16/16/16 bit PNG RGB with 16 bit alpha image decoding required.
	 * @details	Defaults to GFXON
	 */
	#ifndef GDISP_NEED_IMAGE_PNG_RGBALPHA_16
		#define GDISP_NEED_IMAGE_PNG_RGBALPHA_16		GFXON
	#endif
	/**
	 * @brief   The PNG blit buffer size in pixels.
	 * @details	Defaults to 32
	 * @note 	Bigger is faster but requires more RAM.
	 */
	#ifndef GDISP_IMAGE_PNG_BLIT_BUFFER_SIZE
		#define GDISP_IMAGE_PNG_BLIT_BUFFER_SIZE	32
	#endif
	/**
	 * @brief   The PNG input file buffer size in bytes.
	 * @details	Defaults to 8
	 * @note 	Bigger is faster but requires more RAM.
	 * @note 	Must be >= 8
	 */
	#ifndef GDISP_IMAGE_PNG_FILE_BUFFER_SIZE
		#define GDISP_IMAGE_PNG_FILE_BUFFER_SIZE	8
	#endif
	/**
	 * @brief   The PNG inflate decompression buffer size in bytes.
	 * @details	Defaults to 32768
	 * @note 	Bigger is faster but requires more RAM.
	 * @note 	Must be >= 32768 due to the PNG 32K sliding window.
	 * @note 	More efficient code is generated if this value is a power of 2.
	 */
	#ifndef GDISP_IMAGE_PNG_Z_BUFFER_SIZE
		#define GDISP_IMAGE_PNG_Z_BUFFER_SIZE	32768
	#endif
/**
 * @}
 *
 * @name	GDISP Text Rendering Options
 * @{
 */
	/**
	 * @brief	Enable advanced word-wrapping.
	 * @details	Only has an effect with @p gdispGDrawStringBox() and @p gdispGFillStringBox()
	 * @details Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_TEXT_WORDWRAP
		#define GDISP_NEED_TEXT_WORDWRAP		GFXOFF
	#endif
	/**
	 * @brief	Adding pixels to the left and right side of the box to pad text.
	 * @details	Only has an effect with @p gdispGDrawStringBox() and @p gdispGFillStringBox()
	 * @note	Can be turned off by using gJustifyNoPad
	 * @details Defaults to 1
	 */
	#ifndef GDISP_NEED_TEXT_BOXPADLR
		#define GDISP_NEED_TEXT_BOXPADLR		1
	#endif
	/**
	 * @brief	Adding pixels to the top and bottom side of the box to pad text.
	 * @details	Only has an effect with @p gdispGDrawStringBox() and @p gdispGFillStringBox()
	 * @note	Can be turned off by using gJustifyNoPad
	 * @details Defaults to 1
	 */
	#ifndef GDISP_NEED_TEXT_BOXPADTB
		#define GDISP_NEED_TEXT_BOXPADTB		1
	#endif
	/**
	 * @brief	Enable UTF-8 support for text rendering.
	 * @details Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_UTF8
		#define GDISP_NEED_UTF8					GFXOFF
	#endif
	/**
	 * @brief	Enable kerning for font rendering (improves character placement).
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_TEXT_KERNING
		#define GDISP_NEED_TEXT_KERNING			GFXOFF
	#endif
	/**
	 * @brief	Enable antialiased font support
	 * @details	Defaults to GFXOFF
	 */
	#ifndef GDISP_NEED_ANTIALIAS
		#define GDISP_NEED_ANTIALIAS			GFXOFF
	#endif
/**
 * @}
 *
 * @name	GDISP Pixmap Options
 * @{
 */
	#ifndef GDISP_NEED_PIXMAP_IMAGE
		#define GDISP_NEED_PIXMAP_IMAGE			GFXOFF
	#endif
/**
 * @}
 *
 * @name    GDISP Optional Low Level Driver Defines
 * @{
 */
	/**
	 * @brief   Set the screen height and width.
	 * @note	Ignored by some low level GDISP drivers, optional for others.
	 * @note	Where these values are allowed, a default is always provided be the low level driver.
	 * @note	The list of GDISP low level drivers that allow these to be set are...
	 *				WIN32, SSD1289, SSD1963, TestStub
	 */
	/* #define GDISP_SCREEN_WIDTH		nnnn */
	/* #define GDISP_SCREEN_HEIGHT		nnnn */
	/**
	 * @brief   Define which bus interface to use.
	 * @details	Only required by the SSD1963 driver.
	 * @note	This will be replaced eventually by board definition files
	 */
	// #define GDISP_USE_FSMC
	// #define GDISP_USE_GPIO
/** @} */

#endif /* _GDISP_OPTIONS_H */
/** @} */