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
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
use core::mem;
use core::slice;
use core::str;

use cstr_core::CStr;
use cty::*;
use nspire::prelude::*;
use num::FromPrimitive;

pub mod ll {
	#![allow(non_camel_case_types)]

	use core::mem;

	use cty::{
		c_int,
		c_uchar,
		c_char as c_schar,
		c_uint,
		c_void,
		int16_t,
		uint16_t,
		uint8_t
	};

	pub use crate::keysym::*;

	pub type SDL_EventType = c_uint;
	pub type SDLMod = c_uint;
	pub type SDL_SysWMmsg = c_void;

	pub const SDL_NOEVENT: SDL_EventType = 0;
	pub const SDL_ACTIVEEVENT: SDL_EventType = 1;
	pub const SDL_KEYDOWN: SDL_EventType = 2;
	pub const SDL_KEYUP: SDL_EventType = 3;
	pub const SDL_MOUSEMOTION: SDL_EventType = 4;
	pub const SDL_MOUSEBUTTONDOWN: SDL_EventType = 5;
	pub const SDL_MOUSEBUTTONUP: SDL_EventType = 6;
	pub const SDL_JOYAXISMOTION: SDL_EventType = 7;
	pub const SDL_JOYBALLMOTION: SDL_EventType = 8;
	pub const SDL_JOYHATMOTION: SDL_EventType = 9;
	pub const SDL_JOYBUTTONDOWN: SDL_EventType = 10;
	pub const SDL_JOYBUTTONUP: SDL_EventType = 11;
	pub const SDL_QUIT: SDL_EventType = 12;
	pub const SDL_SYSWMEVENT: SDL_EventType = 13;
	pub const SDL_VIDEORESIZE: SDL_EventType = 16;
	pub const SDL_VIDEOEXPOSE: SDL_EventType = 17;
	pub const SDL_USEREVENT: SDL_EventType = 24;

	pub const SDL_DISABLE: c_int = 0;
	pub const SDL_ENABLE: c_int = 1;
	pub const SDL_QUERY: c_int = -1;

	pub const SDL_APPMOUSEFOCUS: c_int = 0x01;
	pub const SDL_APPINPUTFOCUS: c_int = 0x02;
	pub const SDL_APPACTIVE: c_int = 0x04;

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_keysym {
		pub scancode: uint8_t,
		pub sym: SDLKey,
		pub _mod: SDLMod,
		pub unicode: uint16_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_Event {
		pub data: [c_uchar; 24],
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_ActiveEvent {
		pub _type: uint8_t,
		pub gain: uint8_t,
		pub state: uint8_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_KeyboardEvent {
		pub _type: uint8_t,
		pub which: uint8_t,
		pub state: uint8_t,
		pub keysym: SDL_keysym,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_MouseMotionEvent {
		pub _type: uint8_t,
		pub which: uint8_t,
		pub state: uint8_t,
		pub x: uint16_t,
		pub y: uint16_t,
		pub xrel: int16_t,
		pub yrel: int16_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_MouseButtonEvent {
		pub _type: uint8_t,
		pub which: uint8_t,
		pub button: uint8_t,
		pub state: uint8_t,
		pub x: uint16_t,
		pub y: uint16_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_ResizeEvent {
		pub _type: uint8_t,
		pub w: c_int,
		pub h: c_int,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_ExposeEvent {
		pub _type: uint8_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_QuitEvent {
		pub _type: uint8_t,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_UserEvent {
		pub _type: uint8_t,
		pub code: c_int,
		pub data1: *mut c_void,
		pub data2: *mut c_void,
	}

	#[repr(C)]
	#[derive(Debug, Copy, Clone)]
	pub struct SDL_SysWMEvent {
		pub _type: uint8_t,
		pub msg: *mut SDL_SysWMmsg,
	}

	impl SDL_Event {
		pub fn _type(&self) -> *const uint8_t {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn active(&self) -> *const SDL_ActiveEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn key(&self) -> *const SDL_KeyboardEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn motion(&self) -> *const SDL_MouseMotionEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn button(&self) -> *const SDL_MouseButtonEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn resize(&self) -> *const SDL_ResizeEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn expose(&self) -> *const SDL_ExposeEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn quit(&self) -> *const SDL_QuitEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn user(&self) -> *const SDL_UserEvent {
			unsafe { mem::transmute_copy(&self) }
		}

		pub fn syswm(&self) -> *const SDL_SysWMEvent {
			unsafe { mem::transmute_copy(&self) }
		}
	}

	extern "C" {
		pub fn SDL_PollEvent(event: *mut SDL_Event) -> c_int;
		pub fn SDL_WaitEvent(event: *mut SDL_Event) -> c_int;
		pub fn SDL_EventState(_type: uint8_t, state: c_int) -> uint8_t;
		pub fn SDL_GetKeyState(numkeys: *mut c_int) -> *mut uint8_t;
		pub fn SDL_GetModState() -> SDLMod;
		pub fn SDL_GetKeyName(key: SDLKey) -> *mut c_schar;
		pub fn SDL_GetAppState() -> uint8_t;
		pub fn SDL_EnableUNICODE(enable: c_int) -> c_int;
		pub fn SDL_EnableKeyRepeat(delay: c_int, interval: c_int) -> c_int;
		pub fn SDL_SetModState(modstate: SDLMod);
		pub fn SDL_PumpEvents();
	}
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum AppState {
	MouseFocus = ll::SDL_APPMOUSEFOCUS as isize,
	InputFocus = ll::SDL_APPINPUTFOCUS as isize,
	Active = ll::SDL_APPACTIVE as isize
}

fn wrap_app_state(bitflags: u8) -> Vec<AppState> {
	let flags = [AppState::MouseFocus,
		AppState::InputFocus,
		AppState::Active];

	flags.iter().filter_map(|&flag| {
		if bitflags & (flag as u8) != 0 { Some(flag) } else { None }
	}).collect()
}

#[derive(PartialEq, Copy, Clone)]
pub enum RepeatDelay {
	Default,
	Custom(isize)
}

#[derive(PartialEq, Copy, Clone)]
pub enum RepeatInterval {
	Default,
	Custom(isize)
}

#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Copy, Clone)]
pub enum Key {
	Unknown = ll::SDLK_UNKNOWN as isize,
	Backspace = ll::SDLK_BACKSPACE as isize,
	Tab = ll::SDLK_TAB as isize,
	Clear = ll::SDLK_CLEAR as isize,
	Return = ll::SDLK_RETURN as isize,
	Pause = ll::SDLK_PAUSE as isize,
	Escape = ll::SDLK_ESCAPE as isize,
	Space = ll::SDLK_SPACE as isize,
	Exclaim = ll::SDLK_EXCLAIM as isize,
	Quotedbl = ll::SDLK_QUOTEDBL as isize,
	Hash = ll::SDLK_HASH as isize,
	Dollar = ll::SDLK_DOLLAR as isize,
	Ampersand = ll::SDLK_AMPERSAND as isize,
	Quote = ll::SDLK_QUOTE as isize,
	LeftParen = ll::SDLK_LEFTPAREN as isize,
	RightParen = ll::SDLK_RIGHTPAREN as isize,
	Asterisk = ll::SDLK_ASTERISK as isize,
	Plus = ll::SDLK_PLUS as isize,
	Comma = ll::SDLK_COMMA as isize,
	Minus = ll::SDLK_MINUS as isize,
	Period = ll::SDLK_PERIOD as isize,
	Slash = ll::SDLK_SLASH as isize,
	Num0 = ll::SDLK_0 as isize,
	Num1 = ll::SDLK_1 as isize,
	Num2 = ll::SDLK_2 as isize,
	Num3 = ll::SDLK_3 as isize,
	Num4 = ll::SDLK_4 as isize,
	Num5 = ll::SDLK_5 as isize,
	Num6 = ll::SDLK_6 as isize,
	Num7 = ll::SDLK_7 as isize,
	Num8 = ll::SDLK_8 as isize,
	Num9 = ll::SDLK_9 as isize,
	Colon = ll::SDLK_COLON as isize,
	Semicolon = ll::SDLK_SEMICOLON as isize,
	Less = ll::SDLK_LESS as isize,
	Equals = ll::SDLK_EQUALS as isize,
	Greater = ll::SDLK_GREATER as isize,
	Question = ll::SDLK_QUESTION as isize,
	At = ll::SDLK_AT as isize,
	LeftBracket = ll::SDLK_LEFTBRACKET as isize,
	Backslash = ll::SDLK_BACKSLASH as isize,
	RightBracket = ll::SDLK_RIGHTBRACKET as isize,
	Caret = ll::SDLK_CARET as isize,
	Underscore = ll::SDLK_UNDERSCORE as isize,
	Backquote = ll::SDLK_BACKQUOTE as isize,
	A = ll::SDLK_a as isize,
	B = ll::SDLK_b as isize,
	C = ll::SDLK_c as isize,
	D = ll::SDLK_d as isize,
	E = ll::SDLK_e as isize,
	F = ll::SDLK_f as isize,
	G = ll::SDLK_g as isize,
	H = ll::SDLK_h as isize,
	I = ll::SDLK_i as isize,
	J = ll::SDLK_j as isize,
	K = ll::SDLK_k as isize,
	L = ll::SDLK_l as isize,
	M = ll::SDLK_m as isize,
	N = ll::SDLK_n as isize,
	O = ll::SDLK_o as isize,
	P = ll::SDLK_p as isize,
	Q = ll::SDLK_q as isize,
	R = ll::SDLK_r as isize,
	S = ll::SDLK_s as isize,
	T = ll::SDLK_t as isize,
	U = ll::SDLK_u as isize,
	V = ll::SDLK_v as isize,
	W = ll::SDLK_w as isize,
	X = ll::SDLK_x as isize,
	Y = ll::SDLK_y as isize,
	Z = ll::SDLK_z as isize,
	Delete = ll::SDLK_DELETE as isize,
	World0 = ll::SDLK_WORLD_0 as isize,
	World1 = ll::SDLK_WORLD_1 as isize,
	World2 = ll::SDLK_WORLD_2 as isize,
	World3 = ll::SDLK_WORLD_3 as isize,
	World4 = ll::SDLK_WORLD_4 as isize,
	World5 = ll::SDLK_WORLD_5 as isize,
	World6 = ll::SDLK_WORLD_6 as isize,
	World7 = ll::SDLK_WORLD_7 as isize,
	World8 = ll::SDLK_WORLD_8 as isize,
	World9 = ll::SDLK_WORLD_9 as isize,
	World10 = ll::SDLK_WORLD_10 as isize,
	World11 = ll::SDLK_WORLD_11 as isize,
	World12 = ll::SDLK_WORLD_12 as isize,
	World13 = ll::SDLK_WORLD_13 as isize,
	World14 = ll::SDLK_WORLD_14 as isize,
	World15 = ll::SDLK_WORLD_15 as isize,
	World16 = ll::SDLK_WORLD_16 as isize,
	World17 = ll::SDLK_WORLD_17 as isize,
	World18 = ll::SDLK_WORLD_18 as isize,
	World19 = ll::SDLK_WORLD_19 as isize,
	World20 = ll::SDLK_WORLD_20 as isize,
	World21 = ll::SDLK_WORLD_21 as isize,
	World22 = ll::SDLK_WORLD_22 as isize,
	World23 = ll::SDLK_WORLD_23 as isize,
	World24 = ll::SDLK_WORLD_24 as isize,
	World25 = ll::SDLK_WORLD_25 as isize,
	World26 = ll::SDLK_WORLD_26 as isize,
	World27 = ll::SDLK_WORLD_27 as isize,
	World28 = ll::SDLK_WORLD_28 as isize,
	World29 = ll::SDLK_WORLD_29 as isize,
	World30 = ll::SDLK_WORLD_30 as isize,
	World31 = ll::SDLK_WORLD_31 as isize,
	World32 = ll::SDLK_WORLD_32 as isize,
	World33 = ll::SDLK_WORLD_33 as isize,
	World34 = ll::SDLK_WORLD_34 as isize,
	World35 = ll::SDLK_WORLD_35 as isize,
	World36 = ll::SDLK_WORLD_36 as isize,
	World37 = ll::SDLK_WORLD_37 as isize,
	World38 = ll::SDLK_WORLD_38 as isize,
	World39 = ll::SDLK_WORLD_39 as isize,
	World40 = ll::SDLK_WORLD_40 as isize,
	World41 = ll::SDLK_WORLD_41 as isize,
	World42 = ll::SDLK_WORLD_42 as isize,
	World43 = ll::SDLK_WORLD_43 as isize,
	World44 = ll::SDLK_WORLD_44 as isize,
	World45 = ll::SDLK_WORLD_45 as isize,
	World46 = ll::SDLK_WORLD_46 as isize,
	World47 = ll::SDLK_WORLD_47 as isize,
	World48 = ll::SDLK_WORLD_48 as isize,
	World49 = ll::SDLK_WORLD_49 as isize,
	World50 = ll::SDLK_WORLD_50 as isize,
	World51 = ll::SDLK_WORLD_51 as isize,
	World52 = ll::SDLK_WORLD_52 as isize,
	World53 = ll::SDLK_WORLD_53 as isize,
	World54 = ll::SDLK_WORLD_54 as isize,
	World55 = ll::SDLK_WORLD_55 as isize,
	World56 = ll::SDLK_WORLD_56 as isize,
	World57 = ll::SDLK_WORLD_57 as isize,
	World58 = ll::SDLK_WORLD_58 as isize,
	World59 = ll::SDLK_WORLD_59 as isize,
	World60 = ll::SDLK_WORLD_60 as isize,
	World61 = ll::SDLK_WORLD_61 as isize,
	World62 = ll::SDLK_WORLD_62 as isize,
	World63 = ll::SDLK_WORLD_63 as isize,
	World64 = ll::SDLK_WORLD_64 as isize,
	World65 = ll::SDLK_WORLD_65 as isize,
	World66 = ll::SDLK_WORLD_66 as isize,
	World67 = ll::SDLK_WORLD_67 as isize,
	World68 = ll::SDLK_WORLD_68 as isize,
	World69 = ll::SDLK_WORLD_69 as isize,
	World70 = ll::SDLK_WORLD_70 as isize,
	World71 = ll::SDLK_WORLD_71 as isize,
	World72 = ll::SDLK_WORLD_72 as isize,
	World73 = ll::SDLK_WORLD_73 as isize,
	World74 = ll::SDLK_WORLD_74 as isize,
	World75 = ll::SDLK_WORLD_75 as isize,
	World76 = ll::SDLK_WORLD_76 as isize,
	World77 = ll::SDLK_WORLD_77 as isize,
	World78 = ll::SDLK_WORLD_78 as isize,
	World79 = ll::SDLK_WORLD_79 as isize,
	World80 = ll::SDLK_WORLD_80 as isize,
	World81 = ll::SDLK_WORLD_81 as isize,
	World82 = ll::SDLK_WORLD_82 as isize,
	World83 = ll::SDLK_WORLD_83 as isize,
	World84 = ll::SDLK_WORLD_84 as isize,
	World85 = ll::SDLK_WORLD_85 as isize,
	World86 = ll::SDLK_WORLD_86 as isize,
	World87 = ll::SDLK_WORLD_87 as isize,
	World88 = ll::SDLK_WORLD_88 as isize,
	World89 = ll::SDLK_WORLD_89 as isize,
	World90 = ll::SDLK_WORLD_90 as isize,
	World91 = ll::SDLK_WORLD_91 as isize,
	World92 = ll::SDLK_WORLD_92 as isize,
	World93 = ll::SDLK_WORLD_93 as isize,
	World94 = ll::SDLK_WORLD_94 as isize,
	World95 = ll::SDLK_WORLD_95 as isize,
	Kp0 = ll::SDLK_KP0 as isize,
	Kp1 = ll::SDLK_KP1 as isize,
	Kp2 = ll::SDLK_KP2 as isize,
	Kp3 = ll::SDLK_KP3 as isize,
	Kp4 = ll::SDLK_KP4 as isize,
	Kp5 = ll::SDLK_KP5 as isize,
	Kp6 = ll::SDLK_KP6 as isize,
	Kp7 = ll::SDLK_KP7 as isize,
	Kp8 = ll::SDLK_KP8 as isize,
	Kp9 = ll::SDLK_KP9 as isize,
	KpPeriod = ll::SDLK_KP_PERIOD as isize,
	KpDivide = ll::SDLK_KP_DIVIDE as isize,
	KpMultiply = ll::SDLK_KP_MULTIPLY as isize,
	KpMinus = ll::SDLK_KP_MINUS as isize,
	KpPlus = ll::SDLK_KP_PLUS as isize,
	KpEnter = ll::SDLK_KP_ENTER as isize,
	KpEquals = ll::SDLK_KP_EQUALS as isize,
	Up = ll::SDLK_UP as isize,
	Down = ll::SDLK_DOWN as isize,
	Right = ll::SDLK_RIGHT as isize,
	Left = ll::SDLK_LEFT as isize,
	Insert = ll::SDLK_INSERT as isize,
	Home = ll::SDLK_HOME as isize,
	End = ll::SDLK_END as isize,
	PageUp = ll::SDLK_PAGEUP as isize,
	PageDown = ll::SDLK_PAGEDOWN as isize,
	F1 = ll::SDLK_F1 as isize,
	F2 = ll::SDLK_F2 as isize,
	F3 = ll::SDLK_F3 as isize,
	F4 = ll::SDLK_F4 as isize,
	F5 = ll::SDLK_F5 as isize,
	F6 = ll::SDLK_F6 as isize,
	F7 = ll::SDLK_F7 as isize,
	F8 = ll::SDLK_F8 as isize,
	F9 = ll::SDLK_F9 as isize,
	F10 = ll::SDLK_F10 as isize,
	F11 = ll::SDLK_F11 as isize,
	F12 = ll::SDLK_F12 as isize,
	F13 = ll::SDLK_F13 as isize,
	F14 = ll::SDLK_F14 as isize,
	F15 = ll::SDLK_F15 as isize,
	NumLock = ll::SDLK_NUMLOCK as isize,
	CapsLock = ll::SDLK_CAPSLOCK as isize,
	ScrolLock = ll::SDLK_SCROLLOCK as isize,
	RShift = ll::SDLK_RSHIFT as isize,
	LShift = ll::SDLK_LSHIFT as isize,
	RCtrl = ll::SDLK_RCTRL as isize,
	LCtrl = ll::SDLK_LCTRL as isize,
	RAlt = ll::SDLK_RALT as isize,
	LAlt = ll::SDLK_LALT as isize,
	RMeta = ll::SDLK_RMETA as isize,
	LMeta = ll::SDLK_LMETA as isize,
	LSuper = ll::SDLK_LSUPER as isize,
	RSuper = ll::SDLK_RSUPER as isize,
	Mode = ll::SDLK_MODE as isize,
	Compose = ll::SDLK_COMPOSE as isize,
	Help = ll::SDLK_HELP as isize,
	Print = ll::SDLK_PRINT as isize,
	SysReq = ll::SDLK_SYSREQ as isize,
	Break = ll::SDLK_BREAK as isize,
	Menu = ll::SDLK_MENU as isize,
	Power = ll::SDLK_POWER as isize,
	Euro = ll::SDLK_EURO as isize,
	Undo = ll::SDLK_UNDO as isize,
	Last,
}

impl FromPrimitive for Key {
	fn from_i64(n: i64) -> Option<Key> {
		use self::Key::*;

		Some(match n as ll::SDLKey {
			ll::SDLK_UNKNOWN => Unknown,
			ll::SDLK_BACKSPACE => Backspace,
			ll::SDLK_TAB => Tab,
			ll::SDLK_CLEAR => Clear,
			ll::SDLK_RETURN => Return,
			ll::SDLK_PAUSE => Pause,
			ll::SDLK_ESCAPE => Escape,
			ll::SDLK_SPACE => Space,
			ll::SDLK_EXCLAIM => Exclaim,
			ll::SDLK_QUOTEDBL => Quotedbl,
			ll::SDLK_HASH => Hash,
			ll::SDLK_DOLLAR => Dollar,
			ll::SDLK_AMPERSAND => Ampersand,
			ll::SDLK_QUOTE => Quote,
			ll::SDLK_LEFTPAREN => LeftParen,
			ll::SDLK_RIGHTPAREN => RightParen,
			ll::SDLK_ASTERISK => Asterisk,
			ll::SDLK_PLUS => Plus,
			ll::SDLK_COMMA => Comma,
			ll::SDLK_MINUS => Minus,
			ll::SDLK_PERIOD => Period,
			ll::SDLK_SLASH => Slash,
			ll::SDLK_0 => Num0,
			ll::SDLK_1 => Num1,
			ll::SDLK_2 => Num2,
			ll::SDLK_3 => Num3,
			ll::SDLK_4 => Num4,
			ll::SDLK_5 => Num5,
			ll::SDLK_6 => Num6,
			ll::SDLK_7 => Num7,
			ll::SDLK_8 => Num8,
			ll::SDLK_9 => Num9,
			ll::SDLK_COLON => Colon,
			ll::SDLK_SEMICOLON => Semicolon,
			ll::SDLK_LESS => Less,
			ll::SDLK_EQUALS => Equals,
			ll::SDLK_GREATER => Greater,
			ll::SDLK_QUESTION => Question,
			ll::SDLK_AT => At,
			ll::SDLK_LEFTBRACKET => LeftBracket,
			ll::SDLK_BACKSLASH => Backslash,
			ll::SDLK_RIGHTBRACKET => RightBracket,
			ll::SDLK_CARET => Caret,
			ll::SDLK_UNDERSCORE => Underscore,
			ll::SDLK_BACKQUOTE => Backquote,
			ll::SDLK_a => A,
			ll::SDLK_b => B,
			ll::SDLK_c => C,
			ll::SDLK_d => D,
			ll::SDLK_e => E,
			ll::SDLK_f => F,
			ll::SDLK_g => G,
			ll::SDLK_h => H,
			ll::SDLK_i => I,
			ll::SDLK_j => J,
			ll::SDLK_k => K,
			ll::SDLK_l => L,
			ll::SDLK_m => M,
			ll::SDLK_n => N,
			ll::SDLK_o => O,
			ll::SDLK_p => P,
			ll::SDLK_q => Q,
			ll::SDLK_r => R,
			ll::SDLK_s => S,
			ll::SDLK_t => T,
			ll::SDLK_u => U,
			ll::SDLK_v => V,
			ll::SDLK_w => W,
			ll::SDLK_x => X,
			ll::SDLK_y => Y,
			ll::SDLK_z => Z,
			ll::SDLK_DELETE => Delete,
			ll::SDLK_WORLD_0 => World0,
			ll::SDLK_WORLD_1 => World1,
			ll::SDLK_WORLD_2 => World2,
			ll::SDLK_WORLD_3 => World3,
			ll::SDLK_WORLD_4 => World4,
			ll::SDLK_WORLD_5 => World5,
			ll::SDLK_WORLD_6 => World6,
			ll::SDLK_WORLD_7 => World7,
			ll::SDLK_WORLD_8 => World8,
			ll::SDLK_WORLD_9 => World9,
			ll::SDLK_WORLD_10 => World10,
			ll::SDLK_WORLD_11 => World11,
			ll::SDLK_WORLD_12 => World12,
			ll::SDLK_WORLD_13 => World13,
			ll::SDLK_WORLD_14 => World14,
			ll::SDLK_WORLD_15 => World15,
			ll::SDLK_WORLD_16 => World16,
			ll::SDLK_WORLD_17 => World17,
			ll::SDLK_WORLD_18 => World18,
			ll::SDLK_WORLD_19 => World19,
			ll::SDLK_WORLD_20 => World20,
			ll::SDLK_WORLD_21 => World21,
			ll::SDLK_WORLD_22 => World22,
			ll::SDLK_WORLD_23 => World23,
			ll::SDLK_WORLD_24 => World24,
			ll::SDLK_WORLD_25 => World25,
			ll::SDLK_WORLD_26 => World26,
			ll::SDLK_WORLD_27 => World27,
			ll::SDLK_WORLD_28 => World28,
			ll::SDLK_WORLD_29 => World29,
			ll::SDLK_WORLD_30 => World30,
			ll::SDLK_WORLD_31 => World31,
			ll::SDLK_WORLD_32 => World32,
			ll::SDLK_WORLD_33 => World33,
			ll::SDLK_WORLD_34 => World34,
			ll::SDLK_WORLD_35 => World35,
			ll::SDLK_WORLD_36 => World36,
			ll::SDLK_WORLD_37 => World37,
			ll::SDLK_WORLD_38 => World38,
			ll::SDLK_WORLD_39 => World39,
			ll::SDLK_WORLD_40 => World40,
			ll::SDLK_WORLD_41 => World41,
			ll::SDLK_WORLD_42 => World42,
			ll::SDLK_WORLD_43 => World43,
			ll::SDLK_WORLD_44 => World44,
			ll::SDLK_WORLD_45 => World45,
			ll::SDLK_WORLD_46 => World46,
			ll::SDLK_WORLD_47 => World47,
			ll::SDLK_WORLD_48 => World48,
			ll::SDLK_WORLD_49 => World49,
			ll::SDLK_WORLD_50 => World50,
			ll::SDLK_WORLD_51 => World51,
			ll::SDLK_WORLD_52 => World52,
			ll::SDLK_WORLD_53 => World53,
			ll::SDLK_WORLD_54 => World54,
			ll::SDLK_WORLD_55 => World55,
			ll::SDLK_WORLD_56 => World56,
			ll::SDLK_WORLD_57 => World57,
			ll::SDLK_WORLD_58 => World58,
			ll::SDLK_WORLD_59 => World59,
			ll::SDLK_WORLD_60 => World60,
			ll::SDLK_WORLD_61 => World61,
			ll::SDLK_WORLD_62 => World62,
			ll::SDLK_WORLD_63 => World63,
			ll::SDLK_WORLD_64 => World64,
			ll::SDLK_WORLD_65 => World65,
			ll::SDLK_WORLD_66 => World66,
			ll::SDLK_WORLD_67 => World67,
			ll::SDLK_WORLD_68 => World68,
			ll::SDLK_WORLD_69 => World69,
			ll::SDLK_WORLD_70 => World70,
			ll::SDLK_WORLD_71 => World71,
			ll::SDLK_WORLD_72 => World72,
			ll::SDLK_WORLD_73 => World73,
			ll::SDLK_WORLD_74 => World74,
			ll::SDLK_WORLD_75 => World75,
			ll::SDLK_WORLD_76 => World76,
			ll::SDLK_WORLD_77 => World77,
			ll::SDLK_WORLD_78 => World78,
			ll::SDLK_WORLD_79 => World79,
			ll::SDLK_WORLD_80 => World80,
			ll::SDLK_WORLD_81 => World81,
			ll::SDLK_WORLD_82 => World82,
			ll::SDLK_WORLD_83 => World83,
			ll::SDLK_WORLD_84 => World84,
			ll::SDLK_WORLD_85 => World85,
			ll::SDLK_WORLD_86 => World86,
			ll::SDLK_WORLD_87 => World87,
			ll::SDLK_WORLD_88 => World88,
			ll::SDLK_WORLD_89 => World89,
			ll::SDLK_WORLD_90 => World90,
			ll::SDLK_WORLD_91 => World91,
			ll::SDLK_WORLD_92 => World92,
			ll::SDLK_WORLD_93 => World93,
			ll::SDLK_WORLD_94 => World94,
			ll::SDLK_WORLD_95 => World95,
			ll::SDLK_KP0 => Kp0,
			ll::SDLK_KP1 => Kp1,
			ll::SDLK_KP2 => Kp2,
			ll::SDLK_KP3 => Kp3,
			ll::SDLK_KP4 => Kp4,
			ll::SDLK_KP5 => Kp5,
			ll::SDLK_KP6 => Kp6,
			ll::SDLK_KP7 => Kp7,
			ll::SDLK_KP8 => Kp8,
			ll::SDLK_KP9 => Kp9,
			ll::SDLK_KP_PERIOD => KpPeriod,
			ll::SDLK_KP_DIVIDE => KpDivide,
			ll::SDLK_KP_MULTIPLY => KpMultiply,
			ll::SDLK_KP_MINUS => KpMinus,
			ll::SDLK_KP_PLUS => KpPlus,
			ll::SDLK_KP_ENTER => KpEnter,
			ll::SDLK_KP_EQUALS => KpEquals,
			ll::SDLK_UP => Up,
			ll::SDLK_DOWN => Down,
			ll::SDLK_RIGHT => Right,
			ll::SDLK_LEFT => Left,
			ll::SDLK_INSERT => Insert,
			ll::SDLK_HOME => Home,
			ll::SDLK_END => End,
			ll::SDLK_PAGEUP => PageUp,
			ll::SDLK_PAGEDOWN => PageDown,
			ll::SDLK_F1 => F1,
			ll::SDLK_F2 => F2,
			ll::SDLK_F3 => F3,
			ll::SDLK_F4 => F4,
			ll::SDLK_F5 => F5,
			ll::SDLK_F6 => F6,
			ll::SDLK_F7 => F7,
			ll::SDLK_F8 => F8,
			ll::SDLK_F9 => F9,
			ll::SDLK_F10 => F10,
			ll::SDLK_F11 => F11,
			ll::SDLK_F12 => F12,
			ll::SDLK_F13 => F13,
			ll::SDLK_F14 => F14,
			ll::SDLK_F15 => F15,
			ll::SDLK_NUMLOCK => NumLock,
			ll::SDLK_CAPSLOCK => CapsLock,
			ll::SDLK_SCROLLOCK => ScrolLock,
			ll::SDLK_RSHIFT => RShift,
			ll::SDLK_LSHIFT => LShift,
			ll::SDLK_RCTRL => RCtrl,
			ll::SDLK_LCTRL => LCtrl,
			ll::SDLK_RALT => RAlt,
			ll::SDLK_LALT => LAlt,
			ll::SDLK_RMETA => RMeta,
			ll::SDLK_LMETA => LMeta,
			ll::SDLK_LSUPER => LSuper,
			ll::SDLK_RSUPER => RSuper,
			ll::SDLK_MODE => Mode,
			ll::SDLK_COMPOSE => Compose,
			ll::SDLK_HELP => Help,
			ll::SDLK_PRINT => Print,
			ll::SDLK_SYSREQ => SysReq,
			ll::SDLK_BREAK => Break,
			ll::SDLK_MENU => Menu,
			ll::SDLK_POWER => Power,
			ll::SDLK_EURO => Euro,
			ll::SDLK_UNDO => Undo,
			_ => return None,
		})
	}

	fn from_u64(n: u64) -> Option<Key> { FromPrimitive::from_i64(n as i64) }
}

fn wrap_key(i: ll::SDLKey) -> Option<Key> {
	FromPrimitive::from_usize(i as usize)
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum Mod {
	None = 0x0000,
	LShift = 0x0001,
	RShift = 0x0002,
	LCtrl = 0x0040,
	RCtrl = 0x0080,
	LAlt = 0x0100,
	RAlt = 0x0200,
	LMeta = 0x0400,
	RMeta = 0x0800,
	Num = 0x1000,
	Caps = 0x2000,
	Mode = 0x4000,
	Reserved = 0x8000
}

fn wrap_mod_state(bitflags: ll::SDLMod) -> Vec<Mod> {
	let flags = [Mod::None,
		Mod::LShift,
		Mod::RShift,
		Mod::LCtrl,
		Mod::RCtrl,
		Mod::LAlt,
		Mod::RAlt,
		Mod::LMeta,
		Mod::RMeta,
		Mod::Num,
		Mod::Caps,
		Mod::Mode,
		Mod::Reserved];

	flags.iter().filter_map(|&flag| {
		if bitflags & (flag as ll::SDLMod) != 0 { Some(flag) } else { None }
	}).collect()
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum HatState {
	Centered,
	Up,
	Right,
	Down,
	Left
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum Mouse {
	Left = 1,
	Middle,
	Right,
	WheelUp,
	WheelDown
}

impl FromPrimitive for Mouse {
	fn from_i64(n: i64) -> Option<Mouse> {
		Some(match n {
			1 => Mouse::Left,
			2 => Mouse::Middle,
			3 => Mouse::Right,
			4 => Mouse::WheelUp,
			5 => Mouse::WheelDown,
			_ => return None,
		})
	}

	fn from_u64(n: u64) -> Option<Mouse> { FromPrimitive::from_i64(n as i64) }
}

fn wrap_mouse(bitflags: u8) -> Option<Mouse> {
	FromPrimitive::from_u8(bitflags)
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum MouseState {
	Left = 1,
	Middle,
	Right,
	WheelUp,
	WheelDown,
	X1,
	X2
}

fn wrap_mouse_state(bitflags: u8) -> Vec<MouseState> {
	let flags = [MouseState::Left,
		MouseState::Middle,
		MouseState::Right,
		MouseState::WheelUp,
		MouseState::WheelDown,
		MouseState::X1,
		MouseState::X2];

	flags.iter().filter_map(|&flag| {
		if bitflags & (flag as u8) != 0 { Some(flag) } else { None }
	}).collect()
}

#[derive(Debug, PartialEq)]
pub enum Event {
	// TODO: TextInput, TextEditing
	None,
	Active(bool, Vec<AppState>),
	Key(Key, bool, Vec<Mod>, u16),
	// RFC: do you need the scancode?
	MouseMotion(Vec<MouseState>, u16, u16, i16, i16),
	MouseButton(Mouse, bool, u16, u16),
	JoyAxis(isize, isize, i16),
	JoyBall(isize, isize, i16, i16),
	JoyHat(isize, isize, Vec<HatState>),
	JoyButton(isize, isize, bool),
	Quit,
	// TODO: SysWm
	Resize(isize, isize),
	Expose,
	// TODO: User
}

fn null_event() -> ll::SDL_Event {
	ll::SDL_Event { data: [0; 24] }
}

fn wrap_event(raw: ll::SDL_Event) -> Event {
	unsafe {
		let ty = raw._type();
		let ty = if ty.is_null() { return Event::None; } else { *ty };

		let ty: EventType = match FromPrimitive::from_usize(ty as usize) {
			Some(ty) => ty,
			None => return Event::None
		};

		match ty {
			EventType::None => Event::None,
			EventType::Active => {
				let active = raw.active();
				let active = if active.is_null() { return Event::None; } else { *active };

				Event::Active(active.gain == 1, wrap_app_state(active.state))
			}
			EventType::KeyDown | EventType::KeyUp => {
				let key = raw.key();
				let (key, okey) = if key.is_null() { return Event::None; } else { ((*key).keysym, *key) };

				match wrap_key(key.sym) {
					Some(sym) => {
						Event::Key(sym, okey.state == 1, wrap_mod_state(key._mod),
						           key.unicode)
					}
					None => Event::None
				}
			}
			EventType::MouseMotion => {
				let motion = raw.motion();
				let motion = if motion.is_null() { return Event::None; } else { *motion };

				Event::MouseMotion(wrap_mouse_state(motion.state), motion.x,
				                   motion.y, motion.xrel, motion.yrel)
			}
			EventType::MouseButtonDown | EventType::MouseButtonUp => {
				let obutton = raw.button();
				let obutton = if obutton.is_null() { return Event::None; } else { *obutton };

				match wrap_mouse(obutton.button) {
					Some(button) => {
						Event::MouseButton(button, obutton.state == 1,
						                   obutton.x, obutton.y)
					}
					None => Event::None
				}
			}
			EventType::Quit => Event::Quit,
			EventType::Resize => {
				let resize = raw.resize();
				let resize = if resize.is_null() { return Event::None; } else { *resize };

				Event::Resize(resize.w as isize, resize.h as isize)
			}
			EventType::Expose => Event::Expose,
			_ => Event::None
		}
	}
}

#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub enum EventType {
	// TODO: TextInput, TextEditing
	None = ll::SDL_NOEVENT as isize,
	Active = ll::SDL_ACTIVEEVENT as isize,
	KeyDown = ll::SDL_KEYDOWN as isize,
	KeyUp = ll::SDL_KEYUP as isize,
	MouseMotion = ll::SDL_MOUSEMOTION as isize,
	MouseButtonDown = ll::SDL_MOUSEBUTTONDOWN as isize,
	MouseButtonUp = ll::SDL_MOUSEBUTTONUP as isize,
	JoyAxisMotion = ll::SDL_JOYAXISMOTION as isize,
	JoyBallMotion = ll::SDL_JOYBALLMOTION as isize,
	JoyHatMotion = ll::SDL_JOYHATMOTION as isize,
	JoyButtonDown = ll::SDL_JOYBUTTONDOWN as isize,
	JoyButtonUp = ll::SDL_JOYBUTTONUP as isize,
	Quit = ll::SDL_QUIT as isize,
	SysWM = ll::SDL_SYSWMEVENT as isize,
	Resize = ll::SDL_VIDEORESIZE as isize,
	Expose = ll::SDL_VIDEOEXPOSE as isize,
	User = ll::SDL_USEREVENT as isize,
}

impl EventType {
	pub fn get_state(&self) -> bool { get_event_state(*self) }
	pub fn set_state(&self, state: bool) { set_event_state(*self, state) }
}

impl FromPrimitive for EventType {
	fn from_i64(n: i64) -> Option<EventType> {
		Some(match n as ll::SDL_EventType {
			ll::SDL_NOEVENT => EventType::None,
			ll::SDL_ACTIVEEVENT => EventType::Active,
			ll::SDL_KEYDOWN => EventType::KeyDown,
			ll::SDL_KEYUP => EventType::KeyUp,
			ll::SDL_MOUSEMOTION => EventType::MouseMotion,
			ll::SDL_MOUSEBUTTONDOWN => EventType::MouseButtonDown,
			ll::SDL_MOUSEBUTTONUP => EventType::MouseButtonUp,
			ll::SDL_JOYAXISMOTION => EventType::JoyAxisMotion,
			ll::SDL_JOYBALLMOTION => EventType::JoyBallMotion,
			ll::SDL_JOYHATMOTION => EventType::JoyHatMotion,
			ll::SDL_JOYBUTTONDOWN => EventType::JoyButtonDown,
			ll::SDL_JOYBUTTONUP => EventType::JoyButtonUp,
			ll::SDL_QUIT => EventType::Quit,
			ll::SDL_SYSWMEVENT => EventType::SysWM,
			ll::SDL_VIDEORESIZE => EventType::Resize,
			ll::SDL_VIDEOEXPOSE => EventType::Expose,
			ll::SDL_USEREVENT => EventType::User,
			_ => return None,
		})
	}

	fn from_u64(n: u64) -> Option<EventType> { FromPrimitive::from_i64(n as i64) }
}

pub fn pump_events() {
	unsafe { ll::SDL_PumpEvents(); }
}

// TODO: peep_events (a tricky one but doable)

pub fn wait_event() -> Event {
	let mut raw = null_event();
	let success = unsafe {
		ll::SDL_WaitEvent(&mut raw)
			== 1 as c_int
	};

	if success { wrap_event(raw) } else { Event::None }
}

pub fn poll_event() -> Event {
	pump_events();

	let mut raw = null_event();
	let have = unsafe { ll::SDL_PollEvent(&mut raw) };

	if have != 1 {
		return Event::None;
	}

	wrap_event(raw)
}

// TODO: set_event_filter, get_event_filter

pub fn set_event_state(ty: EventType, state: bool) {
	unsafe { ll::SDL_EventState(ty as u8, state as c_int); }
}

pub fn get_event_state(ty: EventType) -> bool {
	unsafe {
		ll::SDL_EventState(ty as u8, ll::SDL_QUERY as c_int)
			== ll::SDL_ENABLE as u8
	}
}

pub fn get_key_state() -> Vec<(Key, bool)> {
	let mut num = 0;
	let data = unsafe { ll::SDL_GetKeyState(&mut num) };
	let mut i = -1isize;

	let buf = data as *const u8;
	let buf = unsafe { slice::from_raw_parts(buf, num as usize) };
	buf.iter().filter_map(|&state| {
		i += 1;

		match wrap_key(i as ll::SDLKey) {
			Some(key) => Some((key, state == 1)),
			None => None
		}
	}).collect()
}

pub fn get_mod_state() -> Vec<Mod> {
	unsafe { wrap_mod_state(ll::SDL_GetModState()) }
}

pub fn set_mod_state(states: &[Mod]) {
	unsafe {
		ll::SDL_SetModState(states.iter().fold(0u32, |states, &state| {
			states | state as ll::SDLMod
		}));
	}
}

pub fn get_key_name(key: Key) -> String {
	unsafe {
		let cstr = ll::SDL_GetKeyName(key as ll::SDLKey);

		str::from_utf8(CStr::from_ptr(mem::transmute_copy(&cstr)).to_bytes()).unwrap().to_string()
	}
}

pub fn get_app_state() -> Vec<AppState> {
	let bitflags = unsafe { ll::SDL_GetAppState() };

	wrap_app_state(bitflags)
}

pub fn enable_unicode(enable: bool) {
	unsafe { ll::SDL_EnableUNICODE(enable as c_int); }
}

pub fn is_unicode_enabled() -> bool {
	unsafe { ll::SDL_EnableUNICODE(-1 as c_int) == 1 }
}

pub fn enable_key_repeat(delay: RepeatDelay, interval: RepeatInterval) -> bool {
	let delay = match delay {
		RepeatDelay::Default => 500,
		RepeatDelay::Custom(delay) => delay
	};
	let interval = match interval {
		RepeatInterval::Default => 30,
		RepeatInterval::Custom(interval) => interval
	};

	unsafe {
		ll::SDL_EnableKeyRepeat(delay as c_int, interval as c_int) == 0 as c_int
	}
}

// get_mouse_state, get_relative_mouse_state, start_text_input, stop_text_input, set_text_input_rect