/
SDL12_compat.c
2755 lines (2346 loc) · 76.4 KB
1
2
/*
Simple DirectMedia Layer
3
Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/* This file contains functions for backwards compatibility with SDL 1.2 */
24
// !!! FIXME: clean up code conventions
25
// !!! FIXME: grep for VideoWindow20 places that might care if it's NULL
26
27
#include "SDL20_include_wrapper.h"
28
29
30
31
32
#if !SDL_VERSION_ATLEAST(2,0,0)
#error You need to compile against SDL 2.0 headers.
#endif
33
34
35
36
37
38
39
/*
* We report the library version as 1.2.$(SDL12_COMPAT_VERSION). This number
* should be way ahead of what SDL-1.2 Classic would report, so apps can
* decide if they're running under the compat layer, if they really care.
*/
#define SDL12_COMPAT_VERSION 50
40
41
#include <stdarg.h>
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
// !!! IMPLEMENT_ME SDL_CDClose
// !!! IMPLEMENT_ME SDL_CDEject
// !!! IMPLEMENT_ME SDL_CDName
// !!! IMPLEMENT_ME SDL_CDNumDrives
// !!! IMPLEMENT_ME SDL_CDOpen
// !!! IMPLEMENT_ME SDL_CDPause
// !!! IMPLEMENT_ME SDL_CDPlay
// !!! IMPLEMENT_ME SDL_CDPlayTracks
// !!! IMPLEMENT_ME SDL_CDResume
// !!! IMPLEMENT_ME SDL_CDStatus
// !!! IMPLEMENT_ME SDL_CDStop
// !!! IMPLEMENT_ME SDL_CreateYUVOverlay
// !!! IMPLEMENT_ME SDL_DisplayFormatAlpha
// !!! IMPLEMENT_ME SDL_DisplayYUVOverlay
// !!! IMPLEMENT_ME SDL_EnableKeyRepeat
// !!! IMPLEMENT_ME SDL_EnableUNICODE
// !!! IMPLEMENT_ME SDL_FreeYUVOverlay
// !!! IMPLEMENT_ME SDL_GL_Lock
// !!! IMPLEMENT_ME SDL_GL_Unlock
// !!! IMPLEMENT_ME SDL_GL_UpdateRects
65
66
67
68
// !!! IMPLEMENT_ME SDL_GetKeyName
// !!! IMPLEMENT_ME SDL_GetKeyState
// !!! IMPLEMENT_ME SDL_GetModState
// !!! IMPLEMENT_ME SDL_GetRelativeMouseState
69
70
71
72
// !!! IMPLEMENT_ME SDL_GetVideoSurface
// !!! IMPLEMENT_ME SDL_GetWMInfo
73
// !!! IMPLEMENT_ME SDL_LockSurface
74
// !!! IMPLEMENT_ME SDL_LockYUVOverlay
75
// !!! IMPLEMENT_ME SDL_LowerBlit
76
77
// !!! IMPLEMENT_ME SDL_SetAlpha
78
// !!! IMPLEMENT_ME SDL_SetColorKey
79
80
// !!! IMPLEMENT_ME SDL_SetColors
81
// !!! IMPLEMENT_ME SDL_SetModState
82
83
// !!! IMPLEMENT_ME SDL_SetPalette
// !!! IMPLEMENT_ME SDL_SetVideoMode
84
85
// !!! IMPLEMENT_ME SDL_SoftStretch
// !!! IMPLEMENT_ME SDL_UnlockSurface
86
87
// !!! IMPLEMENT_ME SDL_UnlockYUVOverlay
// !!! IMPLEMENT_ME SDL_UpdateRects
88
// !!! IMPLEMENT_ME SDL_UpperBlit
89
90
91
92
93
94
95
96
// !!! FIXME: should SDL_VideoInit really be a passthrough?
// !!! FIXME: should SDL_VideoQuit really be a passthrough?
// !!! IMPLEMENT_ME SDL_WM_SetIcon
// !!! IMPLEMENT_ME SDL_WM_ToggleFullScreen
// !!! IMPLEMENT_ME X11_KeyToUnicode
97
98
99
#define SDL_BlitSurface SDL_UpperBlit
100
101
102
103
104
105
106
107
108
109
110
111
112
113
#if 0
#define FIXME(x) do {} while (0)
#else
#define FIXME(x) \
do { \
static SDL_bool seen = SDL_FALSE; \
if (!seen) { \
fprintf(stderr, "FIXME: %s (%s:%d)\n", x, __FILE__, __LINE__); \
seen = SDL_TRUE; \
} \
} while (0)
#endif
114
#define SDL20_SYM(rc,fn,params,args,ret) \
115
typedef rc (SDLCALL *SDL20_##fn##_t) params; \
116
117
118
static SDL20_##fn##_t SDL20_##fn = NULL;
#include "SDL20_syms.h"
119
120
/* Things that _should_ be binary compatible pass right through... */
#define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \
121
DECLSPEC rc SDLCALL SDL_##fn params { ret SDL20_##fn args; }
122
123
#include "SDL20_syms.h"
124
125
126
127
128
129
130
131
132
133
134
/* these are macros (etc) in the SDL headers, so make our own. */
#define SDL20_OutOfMemory() SDL20_Error(SDL_ENOMEM)
#define SDL20_Unsupported() SDL20_Error(SDL_UNSUPPORTED)
#define SDL20_InvalidParamError(param) SDL20_SetError("Parameter '%s' is invalid", (param))
#define SDL20_zero(x) SDL20_memset(&(x), 0, sizeof((x)))
#define SDL20_zerop(x) SDL20_memset((x), 0, sizeof(*(x)))
#define SDL_ReportAssertion SDL20_ReportAssertion
#define SDL12_DEFAULT_REPEAT_DELAY 500
#define SDL12_DEFAULT_REPEAT_INTERVAL 30
135
136
137
138
139
140
141
142
143
144
#define SDL12_INIT_TIMER 0x00000001
#define SDL12_INIT_AUDIO 0x00000010
#define SDL12_INIT_VIDEO 0x00000020
#define SDL12_INIT_CDROM 0x00000100
#define SDL12_INIT_JOYSTICK 0x00000200
#define SDL12_INIT_NOPARACHUTE 0x00100000
#define SDL12_INIT_EVENTTHREAD 0x01000000
#define SDL12_INIT_EVERYTHING 0x0000FFFF
145
typedef struct SDL12_Palette
146
{
147
148
int ncolors;
SDL_Color *colors;
149
150
} SDL12_Palette;
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
typedef struct SDL12_PixelFormat
{
SDL12_Palette *palette;
Uint8 BitsPerPixel;
Uint8 BytesPerPixel;
Uint8 Rloss;
Uint8 Gloss;
Uint8 Bloss;
Uint8 Aloss;
Uint8 Rshift;
Uint8 Gshift;
Uint8 Bshift;
Uint8 Ashift;
Uint32 Rmask;
Uint32 Gmask;
Uint32 Bmask;
Uint32 Amask;
Uint32 colorkey;
Uint8 alpha;
170
171
} SDL12_PixelFormat;
172
173
174
175
176
177
178
179
180
typedef struct SDL12_Surface
{
Uint32 flags;
SDL12_PixelFormat *format;
int w;
int h;
Uint16 pitch;
void *pixels;
int offset;
181
SDL_Surface *surface20; /* the real SDL 1.2 has an opaque pointer to a platform-specific thing here named "hwdata". */
182
183
184
185
186
187
188
189
SDL_Rect clip_rect;
Uint32 unused1;
Uint32 locked;
void *blitmap;
unsigned int format_version;
int refcount;
} SDL12_Surface;
190
191
192
193
194
195
196
197
198
199
200
201
202
203
typedef struct SDL12_Overlay
{
Uint32 format;
int w;
int h;
int planes;
Uint16 *pitches;
Uint8 **pixels;
void *hwfuncs;
void *hwdata;
Uint32 hw_overlay :1;
Uint32 UnusedBits :31;
} SDL12_Overlay;
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
typedef struct
{
Uint32 hw_available :1;
Uint32 wm_available :1;
Uint32 UnusedBits1 :6;
Uint32 UnusedBits2 :1;
Uint32 blit_hw :1;
Uint32 blit_hw_CC :1;
Uint32 blit_hw_A :1;
Uint32 blit_sw :1;
Uint32 blit_sw_CC :1;
Uint32 blit_sw_A :1;
Uint32 blit_fill :1;
Uint32 UnusedBits3 :16;
Uint32 video_mem;
SDL_PixelFormat *vfmt;
int current_w;
int current_h;
} SDL12_VideoInfo;
#define SDL12_HWSURFACE 0x00000001
#define SDL12_ASYNCBLIT 0x00000004
#define SDL12_ANYFORMAT 0x10000000
#define SDL12_HWPALETTE 0x20000000
#define SDL12_DOUBLEBUF 0x40000000
#define SDL12_FULLSCREEN 0x80000000
#define SDL12_OPENGL 0x00000002
#define SDL12_OPENGLBLIT 0x0000000A
#define SDL12_RESIZABLE 0x00000010
#define SDL12_NOFRAME 0x00000020
#define SDL12_HWACCEL 0x00000100
#define SDL12_SRCCOLORKEY 0x00001000
#define SDL12_RLEACCELOK 0x00002000
#define SDL12_RLEACCEL 0x00004000
#define SDL12_SRCALPHA 0x00010000
#define SDL12_PREALLOC 0x01000000
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
typedef enum
{
SDL12_NOEVENT = 0,
SDL12_ACTIVEEVENT,
SDL12_KEYDOWN,
SDL12_KEYUP,
SDL12_MOUSEMOTION,
SDL12_MOUSEBUTTONDOWN,
SDL12_MOUSEBUTTONUP,
SDL12_JOYAXISMOTION,
SDL12_JOYBALLMOTION,
SDL12_JOYHATMOTION,
SDL12_JOYBUTTONDOWN,
SDL12_JOYBUTTONUP,
SDL12_QUIT,
SDL12_SYSWMEVENT,
SDL12_EVENT_RESERVEDA,
SDL12_EVENT_RESERVEDB,
SDL12_VIDEORESIZE,
SDL12_VIDEOEXPOSE,
SDL12_USEREVENT = 24,
SDL12_NUMEVENTS = 32
} SDL12_EventType;
266
267
268
269
270
#define SDL12_APPMOUSEFOCUS (1<<0)
#define SDL12_APPINPUTFOCUS (1<<1)
#define SDL12_APPACTIVE (1<<2)
271
272
273
274
275
276
277
278
279
280
281
282
typedef struct
{
Uint8 type;
Uint8 gain;
Uint8 state;
} SDL12_ActiveEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 state;
283
//FIXME: SDL12_keysym keysym;
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
} SDL12_KeyboardEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 state;
Uint16 x, y;
Sint16 xrel;
Sint16 yrel;
} SDL12_MouseMotionEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 button;
Uint8 state;
Uint16 x, y;
} SDL12_MouseButtonEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 axis;
Sint16 value;
} SDL12_JoyAxisEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 ball;
Sint16 xrel;
Sint16 yrel;
} SDL12_JoyBallEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 hat;
Uint8 value;
} SDL12_JoyHatEvent;
typedef struct
{
Uint8 type;
Uint8 which;
Uint8 button;
Uint8 state;
} SDL12_JoyButtonEvent;
typedef struct
{
Uint8 type;
int w;
int h;
} SDL12_ResizeEvent;
typedef struct
{
Uint8 type;
} SDL12_ExposeEvent;
typedef struct
{
Uint8 type;
} SDL12_QuitEvent;
typedef struct
{
Uint8 type;
int code;
void *data1;
void *data2;
} SDL12_UserEvent;
typedef struct
{
Uint8 type;
void *msg;
} SDL12_SysWMEvent;
typedef union
{
Uint8 type;
SDL12_ActiveEvent active;
SDL12_KeyboardEvent key;
SDL12_MouseMotionEvent motion;
SDL12_MouseButtonEvent button;
SDL12_JoyAxisEvent jaxis;
SDL12_JoyBallEvent jball;
SDL12_JoyHatEvent jhat;
SDL12_JoyButtonEvent jbutton;
SDL12_ResizeEvent resize;
SDL12_ExposeEvent expose;
SDL12_QuitEvent quit;
SDL12_UserEvent user;
SDL12_SysWMEvent syswm;
} SDL12_Event;
386
387
388
389
390
391
392
typedef int (SDLCALL *SDL12_EventFilter)(const SDL12_Event *event12);
static int EventFilter20to12(void *data, SDL_Event *event20);
typedef Uint32 (SDLCALL *SDL12_TimerCallback)(Uint32 interval);
typedef SDL_TimerCallback SDL12_NewTimerCallback;
393
typedef struct
394
{
395
396
397
398
399
400
401
402
403
SDL_Rect area;
Sint16 hot_x;
Sint16 hot_y;
Uint8 *data;
Uint8 *mask;
Uint8 *save[2];
SDL_Cursor *wm_cursor; /* the real SDL 1.2 has an opaque pointer to a platform-specific cursor here. */
} SDL12_Cursor;
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
typedef enum
{
SDL12_GL_RED_SIZE,
SDL12_GL_GREEN_SIZE,
SDL12_GL_BLUE_SIZE,
SDL12_GL_ALPHA_SIZE,
SDL12_GL_BUFFER_SIZE,
SDL12_GL_DOUBLEBUFFER,
SDL12_GL_DEPTH_SIZE,
SDL12_GL_STENCIL_SIZE,
SDL12_GL_ACCUM_RED_SIZE,
SDL12_GL_ACCUM_GREEN_SIZE,
SDL12_GL_ACCUM_BLUE_SIZE,
SDL12_GL_ACCUM_ALPHA_SIZE,
SDL12_GL_STEREO,
SDL12_GL_MULTISAMPLEBUFFERS,
SDL12_GL_MULTISAMPLESAMPLES,
SDL12_GL_ACCELERATED_VISUAL,
SDL12_GL_SWAP_CONTROL,
SDL12_GL_MAX_ATTRIBUTE
} SDL12_GLattr;
425
426
427
428
429
430
431
432
433
typedef struct
{
Uint32 format;
SDL_Rect *modeslist;
SDL_Rect **modes; /* ptrs to each item in modeslist, for SDL_ListModes() */
} VideoModeList;
434
// !!! FIXME: go through all of these.
435
436
static VideoModeList *VideoModes = NULL;
static int VideoModesCount = 0;
437
static SDL12_VideoInfo VideoInfo12;
438
static SDL_Window *VideoWindow20 = NULL;
439
440
441
442
443
static SDL_Renderer *VideoRenderer20 = NULL;
static SDL_Texture *VideoTexture20 = NULL;
static SDL12_Surface *VideoSurface12 = NULL;
static SDL_Surface *VideoConvertSurface20 = NULL;
static SDL_GLContext *VideoGLContext20 = NULL;
444
445
static int VideoNumDirtyRects = 0;
static SDL_Rect VideoDirtyRects[16];
446
447
static char *WindowTitle = NULL;
static char *WindowIconTitle = NULL;
448
static SDL12_Surface *VideoIcon12;
449
450
451
static int EnabledUnicode = 0;
static int VideoDisplayIndex = 0;
static int CDRomInit = 0;
452
static SDL12_EventFilter EventFilter12 = NULL;
453
static SDL12_Cursor *CurrentCursor12 = NULL;
454
static Uint8 EventStates[SDL12_NUMEVENTS];
455
static int SwapInterval = 0;
456
457
458
// !!! FIXME: need a mutex for the event queue.
#define SDL12_MAXEVENTS 128
459
460
461
462
463
464
465
466
467
468
typedef struct EventQueueType
{
SDL12_Event event12;
struct EventQueueType *next;
} EventQueueType;
static EventQueueType EventQueuePool[SDL12_MAXEVENTS];
static EventQueueType *EventQueueHead = NULL;
static EventQueueType *EventQueueTail = NULL;
static EventQueueType *EventQueueAvailable = NULL;
469
470
471
472
/* Obviously we can't use SDL_LoadObject() to load SDL2. :) */
#if defined(_WINDOWS)
473
474
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
475
476
477
478
479
#define SDL20_LIBNAME "SDL2.dll"
static HANDLE Loaded_SDL20 = NULL;
#define LoadSDL20Library() ((Loaded_SDL20 = LoadLibraryA(SDL20_LIBNAME)) != NULL)
#define LookupSDL20Sym(sym) GetProcAddress(Loaded_SDL20, sym)
#define CloseSDL20Library() { { if (Loaded_SDL20) { FreeLibrary(Loaded_SDL20); Loaded_SDL20 = NULL; } }
480
481
#elif defined(unix) || defined(__APPLE__)
#include <dlfcn.h>
482
483
484
485
486
487
488
489
490
491
492
493
#ifdef __APPLE__
#define SDL20_LIBNAME "libSDL2.dylib"
#else
#define SDL20_LIBNAME "libSDL2-2.0.so.0"
#endif
static void *Loaded_SDL20 = NULL;
#define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL)) != NULL)
#define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)
#define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }
#else
#error Please define your platform.
#endif
494
495
496
static void *
LoadSDL20Symbol(const char *fn, int *okay)
497
{
498
499
500
501
void *retval = NULL;
if (*okay) /* only bother trying if we haven't previously failed. */
{
retval = LookupSDL20Sym(fn);
502
503
504
if (!retval) { fprintf(stderr, "WARNING: LOAD FAILED: %s\n", fn); }
// if (retval == NULL)
// *okay = 0;
505
506
}
return retval;
507
508
}
509
510
static void
UnloadSDL20(void)
511
{
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
#define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;
#include "SDL20_syms.h"
CloseSDL20Library();
}
static int
LoadSDL20(void)
{
int okay = 1;
if (!Loaded_SDL20)
{
okay = LoadSDL20Library();
#define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);
#include "SDL20_syms.h"
if (!okay)
UnloadSDL20();
528
}
529
return okay;
530
531
}
532
533
534
535
536
537
DECLSPEC const SDL_version * SDLCALL
SDL_Linked_Version(void)
{
static const SDL_version version = { 1, 2, SDL12_COMPAT_VERSION };
return &version;
}
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
DECLSPEC int SDLCALL
SDL_sscanf(const char *text, const char *fmt, ...)
{
int retval;
va_list ap;
va_start(ap, fmt);
retval = (int) SDL20_sscanf(text, fmt, ap);
va_end(ap);
return retval;
}
DECLSPEC int SDLCALL
SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...)
{
int retval;
va_list ap;
va_start(ap, fmt);
retval = (int) SDL20_vsnprintf(text, maxlen, fmt, ap);
va_end(ap);
return retval;
}
DECLSPEC SDL_bool SDLCALL
SDL_HasMMXExt(void)
{
/* this isn't accurate, but SDL2 doesn't have this for some reason.
MMXExt is available in all SSE1 machines, except early Athlon chips,
so we'll just say it's available if they have SSE1. Oh well. */
return SDL20_HasSSE();
}
DECLSPEC SDL_bool SDLCALL
SDL_Has3DNowExt(void)
{
FIXME("check this");
return SDL20_HasSSE();
}
DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index)
{
FIXME("write me");
return 0;
}
583
584
585
static int
GetVideoDisplay()
{
586
587
FIXME("cache this value during SDL_Init() so it doesn't change.");
const char *variable = SDL20_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");
588
if ( !variable ) {
589
variable = SDL20_getenv("SDL_VIDEO_FULLSCREEN_HEAD");
590
591
}
if ( variable ) {
592
return SDL20_atoi(variable);
593
594
595
596
597
} else {
return 0;
}
}
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
/* This sets up VideoModes and VideoModesCount. You end up with arrays by pixel
format, each with a value that 1.2's SDL_ListModes() can return. */
static int
Init12VidModes(void)
{
const int total = SDL20_GetNumDisplayModes(VideoDisplayIndex);
VideoModeList *vmode = NULL;
int num_modes = 0;
void *ptr = NULL;
int i, j;
SDL_assert(VideoModes == NULL);
SDL_assert(VideoModesCount == 0);
for (i = 0; i < total; ++i) {
SDL_DisplayMode mode;
if (SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode) == -1) {
continue;
} else if (!mode.w || !mode.h) {
SDL_assert(0 && "Can this actually happen?");
continue;
}
if (!vmode || (mode.format != vmode->format)) { // SDL20_GetDisplayMode() sorts on bpp first. We know when to change arrays.
if (VideoModesCount > 0) {
VideoModes[VideoModesCount-1].modes[num_modes] = NULL;
}
ptr = (VideoModeList *) SDL20_realloc(VideoModes, sizeof (VideoModeList) * (VideoModesCount+1));
if (!ptr) {
return SDL20_OutOfMemory();
}
VideoModes = (VideoModeList *) ptr;
vmode = &VideoModes[VideoModesCount];
vmode->format = mode.format;
vmode->modeslist = NULL;
vmode->modes = NULL;
VideoModesCount++;
num_modes = 0;
}
/* make sure we don't have this one already (with a different refresh rate, etc). */
for (j = 0; j < num_modes; j++) {
if ((vmode->modeslist[j].w == mode.w) && (vmode->modeslist[j].h == mode.h)) {
break;
}
}
if (j < num_modes) {
continue; /* already have this one. */
}
ptr = SDL20_realloc(vmode->modes, sizeof (SDL_Rect *) * (num_modes + 2));
if (ptr == NULL) {
return SDL20_OutOfMemory();
}
vmode->modes = (SDL_Rect **) ptr;
ptr = SDL20_realloc(vmode->modeslist, sizeof (SDL_Rect) * (num_modes + 1));
if (ptr == NULL) {
return SDL20_OutOfMemory();
}
vmode->modeslist = (SDL_Rect *) ptr;
vmode->modeslist[num_modes].x = 0;
vmode->modeslist[num_modes].y = 0;
vmode->modeslist[num_modes].w = mode.w;
vmode->modeslist[num_modes].h = mode.h;
vmode->modes[num_modes] = &vmode->modeslist[num_modes];
num_modes++;
}
if (VideoModesCount > 0) {
VideoModes[VideoModesCount-1].modes[num_modes] = NULL;
}
return 0;
}
static int
Init12Video(void)
{
int i;
for (i = 0; i < SDL12_MAXEVENTS-1; i++)
EventQueuePool[i].next = &EventQueuePool[i+1];
EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;
EventQueueHead = EventQueueTail = NULL;
EventQueueAvailable = EventQueuePool;
SDL_memset(EventStates, SDL_ENABLE, sizeof (EventStates)); /* on by default */
EventStates[SDL12_SYSWMEVENT] = SDL_IGNORE; /* off by default. */
SDL20_SetEventFilter(EventFilter20to12, NULL);
VideoDisplayIndex = GetVideoDisplay();
SwapInterval = 0;
if (Init12VidModes() == -1) {
return -1;
}
return 0;
}
707
708
DECLSPEC int SDLCALL
SDL_InitSubSystem(Uint32 sdl12flags)
709
{
710
711
712
FIXME("there is never a parachute in SDL2, should we catch segfaults ourselves?");
FIXME("support event thread where it makes sense to do so?");
713
714
715
716
717
if ( (sdl12flags & SDL12_INIT_EVENTTHREAD) == SDL12_INIT_EVENTTHREAD ) {
return SDL20_SetError("OS doesn't support threaded events");
}
718
719
720
721
722
723
Uint32 sdl20flags = 0;
int rc;
if (!LoadSDL20())
return -1;
724
725
726
727
728
#ifdef __MACOSX__
extern void sdl12_compat_macos_init(void);
sdl12_compat_macos_init();
#endif
729
#define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag
730
731
732
733
734
735
736
SETFLAG(TIMER);
SETFLAG(AUDIO);
SETFLAG(VIDEO);
SETFLAG(JOYSTICK);
SETFLAG(NOPARACHUTE);
#undef SETFLAG
737
738
// There's no CDROM in 2.0, but we'll just pretend it succeeded.
if (sdl12flags & SDL12_INIT_CDROM)
739
CDRomInit = 1;
740
741
FIXME("do something about SDL12_INIT_EVENTTHREAD");
742
743
rc = SDL20_Init(sdl20flags);
744
745
if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO)) {
if (Init12Video() == -1) {
746
747
FIXME("should we deinit other subsystems?");
return -1;
748
}
749
750
}
751
752
753
return rc;
}
754
DECLSPEC int SDLCALL
755
756
SDL_Init(Uint32 sdl12flags)
{
757
FIXME("what was different in 1.2?");
758
return SDL_InitSubSystem(sdl12flags); /* there's no difference betwee Init and InitSubSystem in SDL2. */
759
760
}
761
762
763
static void
InitFlags12To20(const Uint32 flags12, Uint32 *_flags20, Uint32 *_extraflags)
764
{
765
Uint32 flags20 = 0;
766
767
Uint32 extraflags = 0;
768
#define SETFLAG(flag) if (flags12 & SDL12_INIT_##flag) flags20 |= SDL_INIT_##flag
769
770
771
772
773
774
775
SETFLAG(TIMER);
SETFLAG(AUDIO);
SETFLAG(VIDEO);
SETFLAG(JOYSTICK);
SETFLAG(NOPARACHUTE);
#undef SETFLAG
776
if ((flags12 & SDL12_INIT_CDROM) && (CDRomInit)) {
777
extraflags |= SDL12_INIT_CDROM;
778
}
779
780
FIXME("do something about SDL12_INIT_EVENTTHREAD");
781
782
783
*_flags20 = flags20;
*_extraflags = extraflags;
784
785
}
786
787
static Uint32
InitFlags20to12(const Uint32 flags20)
788
{
789
Uint32 flags12 = 0;
790
791
#define SETFLAG(flag) if (flags20 & SDL_INIT_##flag) flags12 |= SDL12_INIT_##flag
792
793
794
795
796
797
798
SETFLAG(TIMER);
SETFLAG(AUDIO);
SETFLAG(VIDEO);
SETFLAG(JOYSTICK);
SETFLAG(NOPARACHUTE);
#undef SETFLAG
799
800
801
802
803
804
805
806
807
808
809
810
811
return flags12;
}
DECLSPEC Uint32 SDLCALL
SDL_WasInit(Uint32 sdl12flags)
{
Uint32 sdl20flags, extraflags;
InitFlags12To20(sdl12flags, &sdl20flags, &extraflags);
return InitFlags20to12(SDL20_WasInit(sdl20flags)) | extraflags;
}
812
813
814
815
816
817
818
819
820
821
822
static void
Quit12Video(void)
{
int i;
for (i = 0; i < VideoModesCount; i++) {
SDL20_free(VideoModes[i].modeslist);
SDL20_free(VideoModes[i].modes);
}
SDL20_free(VideoModes);
823
824
SDL20_FreeFormat(VideoInfo12.vfmt);
SDL20_zero(VideoInfo12);
825
826
827
EventFilter12 = NULL;
EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;
828
CurrentCursor12 = NULL;
829
830
831
832
VideoModes = NULL;
VideoModesCount = 0;
}
833
834
835
836
837
838
839
DECLSPEC void SDLCALL
SDL_QuitSubSystem(Uint32 sdl12flags)
{
Uint32 sdl20flags, extraflags;
InitFlags12To20(sdl12flags, &sdl20flags, &extraflags);
if (extraflags & SDL12_INIT_CDROM) {
840
CDRomInit = 0;
841
}
842
843
FIXME("reset a bunch of other global variables too.");
844
if (sdl12flags & SDL12_INIT_VIDEO) {
845
Quit12Video();
846
847
}
848
FIXME("do something about SDL12_INIT_EVENTTHREAD");
849
850
SDL20_QuitSubSystem(sdl20flags);
851
852
853
854
if ((SDL20_WasInit(0) == 0) && (!CDRomInit)) {
SDL20_Quit();
UnloadSDL20();
}
855
856
}
857
DECLSPEC void SDLCALL
858
859
SDL_Quit(void)
{
860
SDL_QuitSubSystem(SDL_WasInit(0) | SDL12_INIT_CDROM);
861
862
}
863
DECLSPEC void SDLCALL
864
865
SDL_SetError(const char *fmt, ...)
{
866
char ch;
867
char *str = NULL;
868
size_t len = 0;
869
870
va_list ap;
va_start(ap, fmt);
871
len = SDL20_vsnprintf(&ch, 1, fmt, ap);
872
va_end(ap);
873
874
str = (char *) SDL20_malloc(len + 1);
875
876
877
878
if (!str)
SDL20_OutOfMemory();
else
{
879
880
881
va_start(ap, fmt);
SDL20_vsnprintf(str, len + 1, fmt, ap);
va_end(ap);
882
SDL20_SetError("%s", str);
883
SDL20_free(str);
884
}
885
}
886
887
DECLSPEC const char * SDLCALL
888
889
SDL_GetError(void)
{
890
if (SDL20_GetError == NULL)
891
{
892
static const char noload_errstr[] = "The SDL 2.0 library that the 1.2 compatibility layer needs isn't loaded";
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
return noload_errstr;
}
return SDL20_GetError();
}
static const char *
GetDriverName(const char *name, char *namebuf, int maxlen)
{
if (name) {
if (namebuf) {
SDL20_strlcpy(namebuf, name, maxlen);
return namebuf;
} else {
return name;
}
}
return NULL;
}
913
DECLSPEC const char * SDLCALL
914
915
916
917
918
SDL_AudioDriverName(char *namebuf, int maxlen)
{
return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);
}
919
DECLSPEC const char * SDLCALL
920
921
922
923
924
SDL_VideoDriverName(char *namebuf, int maxlen)
{
return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);
}
925
926
927
928
929
930
931
932
933
934
935
936
937
static void PresentScreen(void);
DECLSPEC void SDLCALL
SDL_PumpEvents(void)
{
/* catch things that want to do dirty rectangles but ignore DOUBLEBUF.
Since we have to compose the whole scene at once, catch it in here. */
if (VideoSurface12 && VideoNumDirtyRects) {
PresentScreen();
}
SDL20_PumpEvents();
}
938
DECLSPEC int SDLCALL
939
940
941
942
SDL_PollEvent(SDL12_Event *event12)
{
EventQueueType *next;
943
SDL_PumpEvents(); /* this will run our filter and build our 1.2 queue. */
944
945
946
947
948
949
950
951
952
953
954
955
if (EventQueueHead == NULL)
return 0; /* no events at the moment. */
SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));
next = EventQueueHead->next;
EventQueueHead->next = EventQueueAvailable;
EventQueueAvailable = EventQueueHead;
EventQueueHead = next;
return 1;
}
956
DECLSPEC int SDLCALL
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
SDL_PushEvent(SDL12_Event *event12)
{
EventQueueType *item = EventQueueAvailable;
if (item == NULL)
return -1; /* no space available at the moment. */
EventQueueAvailable = item->next;
if (EventQueueTail)
EventQueueTail->next = item;
else
EventQueueHead = EventQueueTail = item;
item->next = NULL;
SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));
return 0;
}
974
DECLSPEC int SDLCALL
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
SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)
{
if (action == SDL_ADDEVENT)
{
int i;
for (i = 0; i < numevents; i++)
{
if (SDL_PushEvent(&events12[i]) == -1)
break; /* out of space for more events. */
}
return i;
}
else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))
{
const SDL_bool isGet = (action == SDL_GETEVENT);
EventQueueType *prev = NULL;
EventQueueType *item = EventQueueHead;
EventQueueType *next = NULL;
int chosen = 0;
while (chosen < numevents)
{
EventQueueType *nextPrev = item;
if (!item)
break; /* no more events at the moment. */
next = item->next; /* copy, since we might overwrite item->next */