SDL  2.0
SDL_events.c File Reference
#include "../SDL_internal.h"
#include "SDL.h"
#include "SDL_events.h"
#include "SDL_thread.h"
#include "SDL_events_c.h"
#include "../timer/SDL_timer_c.h"
#include "../joystick/SDL_joystick_c.h"
#include "../video/SDL_sysvideo.h"
#include "SDL_syswm.h"
+ Include dependency graph for SDL_events.c:

Go to the source code of this file.

Data Structures

struct  SDL_EventWatcher
 
struct  SDL_DisabledEventBlock
 
struct  _SDL_EventEntry
 
struct  _SDL_SysWMEntry
 

Macros

#define SDL_PRIs64   "I64d"
 
#define SDL_MAX_QUEUED_EVENTS   65535
 
#define uint   unsigned int
 
#define SDL_EVENT_CASE(x)   case x: SDL_strlcpy(name, #x, sizeof (name));
 
#define SDL_WINDOWEVENT_CASE(x)   case x: SDL_strlcpy(name2, #x, sizeof (name2)); break
 
#define PRINT_KEY_EVENT(event)
 
#define PRINT_MBUTTON_EVENT(event)
 
#define PRINT_JBUTTON_EVENT(event)
 
#define PRINT_JOYDEV_EVENT(event)   SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->jdevice.timestamp, (int) event->jdevice.which)
 
#define PRINT_CBUTTON_EVENT(event)
 
#define PRINT_CONTROLLERDEV_EVENT(event)   SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->cdevice.timestamp, (int) event->cdevice.which)
 
#define PRINT_FINGER_EVENT(event)
 
#define PRINT_DOLLAR_EVENT(event)
 
#define PRINT_DROP_EVENT(event)   SDL_snprintf(details, sizeof (details), " (file='%s' timestamp=%u windowid=%u)", event->drop.file, (uint) event->drop.timestamp, (uint) event->drop.windowID)
 
#define PRINT_AUDIODEV_EVENT(event)   SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%u iscapture=%s)", (uint) event->adevice.timestamp, (uint) event->adevice.which, event->adevice.iscapture ? "true" : "false");
 

Functions

static void SDL_EventLoggingChanged (void *userdata, const char *name, const char *oldValue, const char *hint)
 
static void SDL_LogEvent (const SDL_Event *event)
 
void SDL_StopEventLoop (void)
 
int SDL_StartEventLoop (void)
 
static int SDL_AddEvent (SDL_Event *event)
 
static void SDL_CutEvent (SDL_EventEntry *entry)
 
int SDL_PeepEvents (SDL_Event *events, int numevents, SDL_eventaction action, Uint32 minType, Uint32 maxType)
 
SDL_bool SDL_HasEvent (Uint32 type)
 
SDL_bool SDL_HasEvents (Uint32 minType, Uint32 maxType)
 
void SDL_FlushEvent (Uint32 type)
 
void SDL_FlushEvents (Uint32 minType, Uint32 maxType)
 
void SDL_PumpEvents (void)
 
int SDL_PollEvent (SDL_Event *event)
 Polls for currently pending events. More...
 
int SDL_WaitEvent (SDL_Event *event)
 Waits indefinitely for the next available event. More...
 
int SDL_WaitEventTimeout (SDL_Event *event, int timeout)
 Waits until the specified timeout (in milliseconds) for the next available event. More...
 
int SDL_PushEvent (SDL_Event *event)
 Add an event to the event queue. More...
 
void SDL_SetEventFilter (SDL_EventFilter filter, void *userdata)
 
SDL_bool SDL_GetEventFilter (SDL_EventFilter *filter, void **userdata)
 
void SDL_AddEventWatch (SDL_EventFilter filter, void *userdata)
 
void SDL_DelEventWatch (SDL_EventFilter filter, void *userdata)
 
void SDL_FilterEvents (SDL_EventFilter filter, void *userdata)
 
Uint8 SDL_EventState (Uint32 type, int state)
 
Uint32 SDL_RegisterEvents (int numevents)
 
int SDL_SendAppEvent (SDL_EventType eventType)
 
int SDL_SendSysWMEvent (SDL_SysWMmsg *message)
 
int SDL_SendKeymapChangedEvent (void)
 
int SDL_EventsInit (void)
 
void SDL_EventsQuit (void)
 

Variables

static SDL_mutexSDL_event_watchers_lock
 
static SDL_EventWatcher SDL_EventOK
 
static SDL_EventWatcherSDL_event_watchers = NULL
 
static int SDL_event_watchers_count = 0
 
static SDL_bool SDL_event_watchers_dispatching = SDL_FALSE
 
static SDL_bool SDL_event_watchers_removed = SDL_FALSE
 
static SDL_DisabledEventBlockSDL_disabled_events [256]
 
static Uint32 SDL_userevents = SDL_USEREVENT
 
struct {
   SDL_mutex *   lock
 
   SDL_atomic_t   active
 
   SDL_atomic_t   count
 
   int   max_events_seen
 
   SDL_EventEntry *   head
 
   SDL_EventEntry *   tail
 
   SDL_EventEntry *   free
 
   SDL_SysWMEntry *   wmmsg_used
 
   SDL_SysWMEntry *   wmmsg_free
 
SDL_EventQ = { NULL, { 1 }, { 0 }, 0, NULL, NULL, NULL, NULL, NULL }
 
static int SDL_DoEventLogging = 0
 

Macro Definition Documentation

◆ PRINT_AUDIODEV_EVENT

#define PRINT_AUDIODEV_EVENT (   event)    SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%u iscapture=%s)", (uint) event->adevice.timestamp, (uint) event->adevice.which, event->adevice.iscapture ? "true" : "false");

◆ PRINT_CBUTTON_EVENT

#define PRINT_CBUTTON_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d button=%u state=%s)", \
(uint) event->cbutton.timestamp, (int) event->cbutton.which, \
(uint) event->cbutton.button, event->cbutton.state == SDL_PRESSED ? "pressed" : "released")

◆ PRINT_CONTROLLERDEV_EVENT

#define PRINT_CONTROLLERDEV_EVENT (   event)    SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->cdevice.timestamp, (int) event->cdevice.which)

◆ PRINT_DOLLAR_EVENT

#define PRINT_DOLLAR_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u touchid=%"SDL_PRIs64" gestureid=%"SDL_PRIs64" numfingers=%u error=%f x=%f y=%f)", \
(uint) event->dgesture.timestamp, (long long)event->dgesture.touchId, \
(long long)event->dgesture.gestureId, (uint) event->dgesture.numFingers, \
event->dgesture.error, event->dgesture.x, event->dgesture.y);

◆ PRINT_DROP_EVENT

#define PRINT_DROP_EVENT (   event)    SDL_snprintf(details, sizeof (details), " (file='%s' timestamp=%u windowid=%u)", event->drop.file, (uint) event->drop.timestamp, (uint) event->drop.windowID)

◆ PRINT_FINGER_EVENT

#define PRINT_FINGER_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u touchid=%"SDL_PRIs64" fingerid=%"SDL_PRIs64" x=%f y=%f dx=%f dy=%f pressure=%f)", \
(uint) event->tfinger.timestamp, (long long)event->tfinger.touchId, \
(long long)event->tfinger.fingerId, event->tfinger.x, event->tfinger.y, \
event->tfinger.dx, event->tfinger.dy, event->tfinger.pressure)

◆ PRINT_JBUTTON_EVENT

#define PRINT_JBUTTON_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d button=%u state=%s)", \
(uint) event->jbutton.timestamp, (int) event->jbutton.which, \
(uint) event->jbutton.button, event->jbutton.state == SDL_PRESSED ? "pressed" : "released")

◆ PRINT_JOYDEV_EVENT

#define PRINT_JOYDEV_EVENT (   event)    SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->jdevice.timestamp, (int) event->jdevice.which)

◆ PRINT_KEY_EVENT

#define PRINT_KEY_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u state=%s repeat=%s scancode=%u keycode=%u mod=%u)", \
(uint) event->key.timestamp, (uint) event->key.windowID, \
event->key.state == SDL_PRESSED ? "pressed" : "released", \
event->key.repeat ? "true" : "false", \
(uint) event->key.keysym.scancode, \
(uint) event->key.keysym.sym, \
(uint) event->key.keysym.mod)

◆ PRINT_MBUTTON_EVENT

#define PRINT_MBUTTON_EVENT (   event)
Value:
SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u which=%u button=%u state=%s clicks=%u x=%d y=%d)", \
(uint) event->button.timestamp, (uint) event->button.windowID, \
(uint) event->button.which, (uint) event->button.button, \
event->button.state == SDL_PRESSED ? "pressed" : "released", \
(uint) event->button.clicks, (int) event->button.x, (int) event->button.y)

◆ SDL_EVENT_CASE

#define SDL_EVENT_CASE (   x)    case x: SDL_strlcpy(name, #x, sizeof (name));

◆ SDL_MAX_QUEUED_EVENTS

#define SDL_MAX_QUEUED_EVENTS   65535

Definition at line 44 of file SDL_events.c.

◆ SDL_PRIs64

#define SDL_PRIs64   "I64d"

Definition at line 38 of file SDL_events.c.

◆ SDL_WINDOWEVENT_CASE

#define SDL_WINDOWEVENT_CASE (   x)    case x: SDL_strlcpy(name2, #x, sizeof (name2)); break

◆ uint

#define uint   unsigned int

Function Documentation

◆ SDL_AddEvent()

static int SDL_AddEvent ( SDL_Event event)
static

Definition at line 463 of file SDL_events.c.

464 {
465  SDL_EventEntry *entry;
466  const int initial_count = SDL_AtomicGet(&SDL_EventQ.count);
467  int final_count;
468 
469  if (initial_count >= SDL_MAX_QUEUED_EVENTS) {
470  SDL_SetError("Event queue is full (%d events)", initial_count);
471  return 0;
472  }
473 
474  if (SDL_EventQ.free == NULL) {
475  entry = (SDL_EventEntry *)SDL_malloc(sizeof(*entry));
476  if (!entry) {
477  return 0;
478  }
479  } else {
480  entry = SDL_EventQ.free;
481  SDL_EventQ.free = entry->next;
482  }
483 
484  if (SDL_DoEventLogging) {
486  }
487 
488  entry->event = *event;
489  if (event->type == SDL_SYSWMEVENT) {
490  entry->msg = *event->syswm.msg;
491  entry->event.syswm.msg = &entry->msg;
492  }
493 
494  if (SDL_EventQ.tail) {
495  SDL_EventQ.tail->next = entry;
496  entry->prev = SDL_EventQ.tail;
497  SDL_EventQ.tail = entry;
498  entry->next = NULL;
499  } else {
500  SDL_assert(!SDL_EventQ.head);
501  SDL_EventQ.head = entry;
502  SDL_EventQ.tail = entry;
503  entry->prev = NULL;
504  entry->next = NULL;
505  }
506 
507  final_count = SDL_AtomicAdd(&SDL_EventQ.count, 1) + 1;
508  if (final_count > SDL_EventQ.max_events_seen) {
509  SDL_EventQ.max_events_seen = final_count;
510  }
511 
512  return 1;
513 }

References NULL, SDL_assert, SDL_AtomicAdd, SDL_AtomicGet, SDL_DoEventLogging, SDL_EventQ, SDL_LogEvent(), SDL_malloc, SDL_MAX_QUEUED_EVENTS, SDL_SetError, and SDL_SYSWMEVENT.

Referenced by SDL_PeepEvents().

◆ SDL_AddEventWatch()

void SDL_AddEventWatch ( SDL_EventFilter  filter,
void userdata 
)

Add a function which is called when an event is added to the queue.

Definition at line 841 of file SDL_events.c.

842 {
844  SDL_EventWatcher *event_watchers;
845 
846  event_watchers = SDL_realloc(SDL_event_watchers, (SDL_event_watchers_count + 1) * sizeof(*event_watchers));
847  if (event_watchers) {
848  SDL_EventWatcher *watcher;
849 
850  SDL_event_watchers = event_watchers;
852  watcher->callback = filter;
853  watcher->userdata = userdata;
854  watcher->removed = SDL_FALSE;
856  }
857 
860  }
861  }
862 }

References SDL_EventWatcher::callback, SDL_EventWatcher::removed, SDL_event_watchers, SDL_event_watchers_count, SDL_event_watchers_lock, SDL_FALSE, SDL_LockMutex, SDL_realloc, SDL_UnlockMutex, and SDL_EventWatcher::userdata.

◆ SDL_CutEvent()

static void SDL_CutEvent ( SDL_EventEntry *  entry)
static

Definition at line 517 of file SDL_events.c.

518 {
519  if (entry->prev) {
520  entry->prev->next = entry->next;
521  }
522  if (entry->next) {
523  entry->next->prev = entry->prev;
524  }
525 
526  if (entry == SDL_EventQ.head) {
527  SDL_assert(entry->prev == NULL);
528  SDL_EventQ.head = entry->next;
529  }
530  if (entry == SDL_EventQ.tail) {
531  SDL_assert(entry->next == NULL);
532  SDL_EventQ.tail = entry->prev;
533  }
534 
535  entry->next = SDL_EventQ.free;
536  SDL_EventQ.free = entry;
537  SDL_assert(SDL_AtomicGet(&SDL_EventQ.count) > 0);
538  SDL_AtomicAdd(&SDL_EventQ.count, -1);
539 }

References NULL, SDL_assert, SDL_AtomicAdd, SDL_AtomicGet, and SDL_EventQ.

Referenced by SDL_FilterEvents(), SDL_FlushEvents(), and SDL_PeepEvents().

◆ SDL_DelEventWatch()

void SDL_DelEventWatch ( SDL_EventFilter  filter,
void userdata 
)

Remove an event watch function added with SDL_AddEventWatch()

Definition at line 865 of file SDL_events.c.

866 {
868  int i;
869 
870  for (i = 0; i < SDL_event_watchers_count; ++i) {
871  if (SDL_event_watchers[i].callback == filter && SDL_event_watchers[i].userdata == userdata) {
875  } else {
877  if (i < SDL_event_watchers_count) {
879  }
880  }
881  break;
882  }
883  }
884 
887  }
888  }
889 }

References callback(), i, SDL_EventWatcher::removed, SDL_event_watchers, SDL_event_watchers_count, SDL_event_watchers_dispatching, SDL_event_watchers_lock, SDL_event_watchers_removed, SDL_LockMutex, SDL_memmove, SDL_TRUE, and SDL_UnlockMutex.

◆ SDL_EventLoggingChanged()

static void SDL_EventLoggingChanged ( void userdata,
const char *  name,
const char *  oldValue,
const char *  hint 
)
static

Definition at line 99 of file SDL_events.c.

100 {
101  SDL_DoEventLogging = (hint && *hint) ? SDL_max(SDL_min(SDL_atoi(hint), 2), 0) : 0;
102 }

References SDL_atoi, SDL_DoEventLogging, SDL_max, and SDL_min.

Referenced by SDL_EventsInit(), and SDL_EventsQuit().

◆ SDL_EventsInit()

int SDL_EventsInit ( void  )

◆ SDL_EventsQuit()

◆ SDL_EventState()

Uint8 SDL_EventState ( Uint32  type,
int  state 
)

This function allows you to set the state of processing certain events.

  • If state is set to SDL_IGNORE, that event will be automatically dropped from the event queue and will not be filtered.
  • If state is set to SDL_ENABLE, that event will be processed normally.
  • If state is set to SDL_QUERY, SDL_EventState() will return the current processing state of the specified event.

Definition at line 909 of file SDL_events.c.

910 {
911  const SDL_bool isdnd = ((state == SDL_DISABLE) || (state == SDL_ENABLE)) &&
912  ((type == SDL_DROPFILE) || (type == SDL_DROPTEXT));
913  Uint8 current_state;
914  Uint8 hi = ((type >> 8) & 0xff);
915  Uint8 lo = (type & 0xff);
916 
917  if (SDL_disabled_events[hi] &&
918  (SDL_disabled_events[hi]->bits[lo/32] & (1 << (lo&31)))) {
919  current_state = SDL_DISABLE;
920  } else {
921  current_state = SDL_ENABLE;
922  }
923 
924  if (state != current_state)
925  {
926  switch (state) {
927  case SDL_DISABLE:
928  /* Disable this event type and discard pending events */
929  if (!SDL_disabled_events[hi]) {
931  if (!SDL_disabled_events[hi]) {
932  /* Out of memory, nothing we can do... */
933  break;
934  }
935  }
936  SDL_disabled_events[hi]->bits[lo/32] |= (1 << (lo&31));
938  break;
939  case SDL_ENABLE:
940  SDL_disabled_events[hi]->bits[lo/32] &= ~(1 << (lo&31));
941  break;
942  default:
943  /* Querying state... */
944  break;
945  }
946  }
947 
948  /* turn off drag'n'drop support if we've disabled the events.
949  This might change some UI details at the OS level. */
950  if (isdnd) {
952  }
953 
954  return current_state;
955 }

References SDL_DisabledEventBlock::bits, SDL_calloc, SDL_DISABLE, SDL_disabled_events, SDL_DROPFILE, SDL_DROPTEXT, SDL_ENABLE, SDL_FlushEvent(), SDL_ToggleDragAndDropSupport(), and state.

Referenced by SDL_StartEventLoop().

◆ SDL_FilterEvents()

void SDL_FilterEvents ( SDL_EventFilter  filter,
void userdata 
)

Run the filter function on the current event queue, removing any events for which the filter returns 0.

Definition at line 892 of file SDL_events.c.

893 {
894  if (!SDL_EventQ.lock || SDL_LockMutex(SDL_EventQ.lock) == 0) {
895  SDL_EventEntry *entry, *next;
896  for (entry = SDL_EventQ.head; entry; entry = next) {
897  next = entry->next;
898  if (!filter(userdata, &entry->event)) {
899  SDL_CutEvent(entry);
900  }
901  }
902  if (SDL_EventQ.lock) {
904  }
905  }
906 }

References _SDL_SysWMEntry::next, SDL_CutEvent(), SDL_EventQ, SDL_LockMutex, and SDL_UnlockMutex.

◆ SDL_FlushEvent()

void SDL_FlushEvent ( Uint32  type)

This function clears events from the event queue This function only affects currently queued events. If you want to make sure that all pending OS events are flushed, you can call SDL_PumpEvents() on the main thread immediately before the flush call.

Definition at line 633 of file SDL_events.c.

634 {
636 }

References SDL_FlushEvents().

Referenced by SDL_EventState().

◆ SDL_FlushEvents()

void SDL_FlushEvents ( Uint32  minType,
Uint32  maxType 
)

Definition at line 639 of file SDL_events.c.

640 {
641  /* !!! FIXME: we need to manually SDL_free() the strings in TEXTINPUT and
642  drag'n'drop events if we're flushing them without passing them to the
643  app, but I don't know if this is the right place to do that. */
644 
645  /* Don't look after we've quit */
646  if (!SDL_AtomicGet(&SDL_EventQ.active)) {
647  return;
648  }
649 
650  /* Make sure the events are current */
651 #if 0
652  /* Actually, we can't do this since we might be flushing while processing
653  a resize event, and calling this might trigger further resize events.
654  */
655  SDL_PumpEvents();
656 #endif
657 
658  /* Lock the event queue */
659  if (!SDL_EventQ.lock || SDL_LockMutex(SDL_EventQ.lock) == 0) {
660  SDL_EventEntry *entry, *next;
661  Uint32 type;
662  for (entry = SDL_EventQ.head; entry; entry = next) {
663  next = entry->next;
664  type = entry->event.type;
665  if (minType <= type && type <= maxType) {
666  SDL_CutEvent(entry);
667  }
668  }
669  if (SDL_EventQ.lock) {
671  }
672  }
673 }

References _SDL_SysWMEntry::next, SDL_AtomicGet, SDL_CutEvent(), SDL_EventQ, SDL_LockMutex, SDL_PumpEvents(), and SDL_UnlockMutex.

Referenced by SDL_FlushEvent(), and SDL_SetEventFilter().

◆ SDL_GetEventFilter()

SDL_bool SDL_GetEventFilter ( SDL_EventFilter filter,
void **  userdata 
)

Return the current event filter - can be used to "chain" filters. If there is no event filter set, this function returns SDL_FALSE.

Definition at line 817 of file SDL_events.c.

818 {
819  SDL_EventWatcher event_ok;
820 
822  event_ok = SDL_EventOK;
823 
826  }
827  } else {
828  SDL_zero(event_ok);
829  }
830 
831  if (filter) {
832  *filter = event_ok.callback;
833  }
834  if (userdata) {
835  *userdata = event_ok.userdata;
836  }
837  return event_ok.callback ? SDL_TRUE : SDL_FALSE;
838 }

References SDL_EventWatcher::callback, SDL_event_watchers_lock, SDL_EventOK, SDL_FALSE, SDL_LockMutex, SDL_TRUE, SDL_UnlockMutex, SDL_zero, and SDL_EventWatcher::userdata.

◆ SDL_HasEvent()

SDL_bool SDL_HasEvent ( Uint32  type)

Checks to see if certain event types are in the event queue.

Definition at line 621 of file SDL_events.c.

622 {
623  return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, type, type) > 0);
624 }

References NULL, SDL_PEEKEVENT, and SDL_PeepEvents().

◆ SDL_HasEvents()

SDL_bool SDL_HasEvents ( Uint32  minType,
Uint32  maxType 
)

Definition at line 627 of file SDL_events.c.

628 {
629  return (SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, minType, maxType) > 0);
630 }

References NULL, SDL_PEEKEVENT, and SDL_PeepEvents().

◆ SDL_LogEvent()

static void SDL_LogEvent ( const SDL_Event event)
static

Definition at line 105 of file SDL_events.c.

106 {
107  char name[32];
108  char details[128];
109 
110  /* mouse/finger motion are spammy, ignore these if they aren't demanded. */
111  if ( (SDL_DoEventLogging < 2) &&
112  ( (event->type == SDL_MOUSEMOTION) ||
113  (event->type == SDL_FINGERMOTION) ) ) {
114  return;
115  }
116 
117  /* this is to make SDL_snprintf() calls cleaner. */
118  #define uint unsigned int
119 
120  name[0] = '\0';
121  details[0] = '\0';
122 
123  /* !!! FIXME: This code is kinda ugly, sorry. */
124 
125  if ((event->type >= SDL_USEREVENT) && (event->type <= SDL_LASTEVENT)) {
126  char plusstr[16];
127  SDL_strlcpy(name, "SDL_USEREVENT", sizeof (name));
128  if (event->type > SDL_USEREVENT) {
129  SDL_snprintf(plusstr, sizeof (plusstr), "+%u", ((uint) event->type) - SDL_USEREVENT);
130  } else {
131  plusstr[0] = '\0';
132  }
133  SDL_snprintf(details, sizeof (details), "%s (timestamp=%u windowid=%u code=%d data1=%p data2=%p)",
134  plusstr, (uint) event->user.timestamp, (uint) event->user.windowID,
135  (int) event->user.code, event->user.data1, event->user.data2);
136  }
137 
138  switch (event->type) {
139  #define SDL_EVENT_CASE(x) case x: SDL_strlcpy(name, #x, sizeof (name));
140  SDL_EVENT_CASE(SDL_FIRSTEVENT) SDL_strlcpy(details, " (THIS IS PROBABLY A BUG!)", sizeof (details)); break;
141  SDL_EVENT_CASE(SDL_QUIT) SDL_snprintf(details, sizeof (details), " (timestamp=%u)", (uint) event->quit.timestamp); break;
152 
154  char name2[64];
155  switch(event->window.event) {
156  case SDL_WINDOWEVENT_NONE: SDL_strlcpy(name2, "SDL_WINDOWEVENT_NONE (THIS IS PROBABLY A BUG!)", sizeof (name2)); break;
157  #define SDL_WINDOWEVENT_CASE(x) case x: SDL_strlcpy(name2, #x, sizeof (name2)); break
174  #undef SDL_WINDOWEVENT_CASE
175  default: SDL_strlcpy(name2, "UNKNOWN (bug? fixme?)", sizeof (name2)); break;
176  }
177  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u event=%s data1=%d data2=%d)",
178  (uint) event->window.timestamp, (uint) event->window.windowID, name2, (int) event->window.data1, (int) event->window.data2);
179  break;
180  }
181 
183  /* !!! FIXME: we don't delve further at the moment. */
184  SDL_snprintf(details, sizeof (details), " (timestamp=%u)", (uint) event->syswm.timestamp);
185  break;
186 
187  #define PRINT_KEY_EVENT(event) \
188  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u state=%s repeat=%s scancode=%u keycode=%u mod=%u)", \
189  (uint) event->key.timestamp, (uint) event->key.windowID, \
190  event->key.state == SDL_PRESSED ? "pressed" : "released", \
191  event->key.repeat ? "true" : "false", \
192  (uint) event->key.keysym.scancode, \
193  (uint) event->key.keysym.sym, \
194  (uint) event->key.keysym.mod)
197  #undef PRINT_KEY_EVENT
198 
200  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u text='%s' start=%d length=%d)",
201  (uint) event->edit.timestamp, (uint) event->edit.windowID,
202  event->edit.text, (int) event->edit.start, (int) event->edit.length);
203  break;
204 
206  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u text='%s')", (uint) event->text.timestamp, (uint) event->text.windowID, event->text.text);
207  break;
208 
209 
211  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u which=%u state=%u x=%d y=%d xrel=%d yrel=%d)",
212  (uint) event->motion.timestamp, (uint) event->motion.windowID,
213  (uint) event->motion.which, (uint) event->motion.state,
214  (int) event->motion.x, (int) event->motion.y,
215  (int) event->motion.xrel, (int) event->motion.yrel);
216  break;
217 
218  #define PRINT_MBUTTON_EVENT(event) \
219  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u which=%u button=%u state=%s clicks=%u x=%d y=%d)", \
220  (uint) event->button.timestamp, (uint) event->button.windowID, \
221  (uint) event->button.which, (uint) event->button.button, \
222  event->button.state == SDL_PRESSED ? "pressed" : "released", \
223  (uint) event->button.clicks, (int) event->button.x, (int) event->button.y)
226  #undef PRINT_MBUTTON_EVENT
227 
228 
230  SDL_snprintf(details, sizeof (details), " (timestamp=%u windowid=%u which=%u x=%d y=%d direction=%s)",
231  (uint) event->wheel.timestamp, (uint) event->wheel.windowID,
232  (uint) event->wheel.which, (int) event->wheel.x, (int) event->wheel.y,
233  event->wheel.direction == SDL_MOUSEWHEEL_NORMAL ? "normal" : "flipped");
234  break;
235 
237  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d axis=%u value=%d)",
238  (uint) event->jaxis.timestamp, (int) event->jaxis.which,
239  (uint) event->jaxis.axis, (int) event->jaxis.value);
240  break;
241 
243  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d ball=%u xrel=%d yrel=%d)",
244  (uint) event->jball.timestamp, (int) event->jball.which,
245  (uint) event->jball.ball, (int) event->jball.xrel, (int) event->jball.yrel);
246  break;
247 
249  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d hat=%u value=%u)",
250  (uint) event->jhat.timestamp, (int) event->jhat.which,
251  (uint) event->jhat.hat, (uint) event->jhat.value);
252  break;
253 
254  #define PRINT_JBUTTON_EVENT(event) \
255  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d button=%u state=%s)", \
256  (uint) event->jbutton.timestamp, (int) event->jbutton.which, \
257  (uint) event->jbutton.button, event->jbutton.state == SDL_PRESSED ? "pressed" : "released")
260  #undef PRINT_JBUTTON_EVENT
261 
262  #define PRINT_JOYDEV_EVENT(event) SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->jdevice.timestamp, (int) event->jdevice.which)
265  #undef PRINT_JOYDEV_EVENT
266 
268  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d axis=%u value=%d)",
269  (uint) event->caxis.timestamp, (int) event->caxis.which,
270  (uint) event->caxis.axis, (int) event->caxis.value);
271  break;
272 
273  #define PRINT_CBUTTON_EVENT(event) \
274  SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d button=%u state=%s)", \
275  (uint) event->cbutton.timestamp, (int) event->cbutton.which, \
276  (uint) event->cbutton.button, event->cbutton.state == SDL_PRESSED ? "pressed" : "released")
279  #undef PRINT_CBUTTON_EVENT
280 
281  #define PRINT_CONTROLLERDEV_EVENT(event) SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%d)", (uint) event->cdevice.timestamp, (int) event->cdevice.which)
285  #undef PRINT_CONTROLLERDEV_EVENT
286 
287  #define PRINT_FINGER_EVENT(event) \
288  SDL_snprintf(details, sizeof (details), " (timestamp=%u touchid=%"SDL_PRIs64" fingerid=%"SDL_PRIs64" x=%f y=%f dx=%f dy=%f pressure=%f)", \
289  (uint) event->tfinger.timestamp, (long long)event->tfinger.touchId, \
290  (long long)event->tfinger.fingerId, event->tfinger.x, event->tfinger.y, \
291  event->tfinger.dx, event->tfinger.dy, event->tfinger.pressure)
295  #undef PRINT_FINGER_EVENT
296 
297  #define PRINT_DOLLAR_EVENT(event) \
298  SDL_snprintf(details, sizeof (details), " (timestamp=%u touchid=%"SDL_PRIs64" gestureid=%"SDL_PRIs64" numfingers=%u error=%f x=%f y=%f)", \
299  (uint) event->dgesture.timestamp, (long long)event->dgesture.touchId, \
300  (long long)event->dgesture.gestureId, (uint) event->dgesture.numFingers, \
301  event->dgesture.error, event->dgesture.x, event->dgesture.y);
304  #undef PRINT_DOLLAR_EVENT
305 
307  SDL_snprintf(details, sizeof (details), " (timestamp=%u touchid=%"SDL_PRIs64" dtheta=%f ddist=%f x=%f y=%f numfingers=%u)",
308  (uint) event->mgesture.timestamp, (long long)event->mgesture.touchId,
309  event->mgesture.dTheta, event->mgesture.dDist,
310  event->mgesture.x, event->mgesture.y, (uint) event->mgesture.numFingers);
311  break;
312 
313  #define PRINT_DROP_EVENT(event) SDL_snprintf(details, sizeof (details), " (file='%s' timestamp=%u windowid=%u)", event->drop.file, (uint) event->drop.timestamp, (uint) event->drop.windowID)
318  #undef PRINT_DROP_EVENT
319 
320  #define PRINT_AUDIODEV_EVENT(event) SDL_snprintf(details, sizeof (details), " (timestamp=%u which=%u iscapture=%s)", (uint) event->adevice.timestamp, (uint) event->adevice.which, event->adevice.iscapture ? "true" : "false");
323  #undef PRINT_AUDIODEV_EVENT
324 
325  #undef SDL_EVENT_CASE
326 
327  default:
328  if (!name[0]) {
329  SDL_strlcpy(name, "UNKNOWN", sizeof (name));
330  SDL_snprintf(details, sizeof (details), " #%u! (Bug? FIXME?)", (uint) event->type);
331  }
332  break;
333  }
334 
335  if (name[0]) {
336  SDL_Log("SDL EVENT: %s%s", name, details);
337  }
338 
339  #undef uint
340 }

References PRINT_AUDIODEV_EVENT, PRINT_CBUTTON_EVENT, PRINT_CONTROLLERDEV_EVENT, PRINT_DOLLAR_EVENT, PRINT_DROP_EVENT, PRINT_FINGER_EVENT, PRINT_JBUTTON_EVENT, PRINT_JOYDEV_EVENT, PRINT_KEY_EVENT, PRINT_MBUTTON_EVENT, SDL_APP_DIDENTERBACKGROUND, SDL_APP_DIDENTERFOREGROUND, SDL_APP_LOWMEMORY, SDL_APP_TERMINATING, SDL_APP_WILLENTERBACKGROUND, SDL_APP_WILLENTERFOREGROUND, SDL_AUDIODEVICEADDED, SDL_AUDIODEVICEREMOVED, SDL_CLIPBOARDUPDATE, SDL_CONTROLLERAXISMOTION, SDL_CONTROLLERBUTTONDOWN, SDL_CONTROLLERBUTTONUP, SDL_CONTROLLERDEVICEADDED, SDL_CONTROLLERDEVICEREMAPPED, SDL_CONTROLLERDEVICEREMOVED, SDL_DoEventLogging, SDL_DOLLARGESTURE, SDL_DOLLARRECORD, SDL_DROPBEGIN, SDL_DROPCOMPLETE, SDL_DROPFILE, SDL_DROPTEXT, SDL_EVENT_CASE, SDL_FINGERDOWN, SDL_FINGERMOTION, SDL_FINGERUP, SDL_FIRSTEVENT, SDL_JOYAXISMOTION, SDL_JOYBALLMOTION, SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP, SDL_JOYDEVICEADDED, SDL_JOYDEVICEREMOVED, SDL_JOYHATMOTION, SDL_KEYDOWN, SDL_KEYMAPCHANGED, SDL_KEYUP, SDL_LASTEVENT, SDL_Log, SDL_MOUSEBUTTONDOWN, SDL_MOUSEBUTTONUP, SDL_MOUSEMOTION, SDL_MOUSEWHEEL, SDL_MOUSEWHEEL_NORMAL, SDL_MULTIGESTURE, SDL_PRIs64, SDL_QUIT, SDL_RENDER_DEVICE_RESET, SDL_RENDER_TARGETS_RESET, SDL_snprintf, SDL_strlcpy, SDL_SYSWMEVENT, SDL_TEXTEDITING, SDL_TEXTINPUT, SDL_USEREVENT, SDL_WINDOWEVENT, SDL_WINDOWEVENT_CASE, SDL_WINDOWEVENT_CLOSE, SDL_WINDOWEVENT_ENTER, SDL_WINDOWEVENT_EXPOSED, SDL_WINDOWEVENT_FOCUS_GAINED, SDL_WINDOWEVENT_FOCUS_LOST, SDL_WINDOWEVENT_HIDDEN, SDL_WINDOWEVENT_HIT_TEST, SDL_WINDOWEVENT_LEAVE, SDL_WINDOWEVENT_MAXIMIZED, SDL_WINDOWEVENT_MINIMIZED, SDL_WINDOWEVENT_MOVED, SDL_WINDOWEVENT_NONE, SDL_WINDOWEVENT_RESIZED, SDL_WINDOWEVENT_RESTORED, SDL_WINDOWEVENT_SHOWN, SDL_WINDOWEVENT_SIZE_CHANGED, SDL_WINDOWEVENT_TAKE_FOCUS, and uint.

Referenced by SDL_AddEvent().

◆ SDL_PeepEvents()

int SDL_PeepEvents ( SDL_Event events,
int  numevents,
SDL_eventaction  action,
Uint32  minType,
Uint32  maxType 
)

Checks the event queue for messages and optionally returns them.

If action is SDL_ADDEVENT, up to numevents events will be added to the back of the event queue.

If action is SDL_PEEKEVENT, up to numevents events at the front of the event queue, within the specified minimum and maximum type, will be returned and will not be removed from the queue.

If action is SDL_GETEVENT, up to numevents events at the front of the event queue, within the specified minimum and maximum type, will be returned and will be removed from the queue.

Returns
The number of events actually stored, or -1 if there was an error.

This function is thread-safe.

Definition at line 543 of file SDL_events.c.

545 {
546  int i, used;
547 
548  /* Don't look after we've quit */
549  if (!SDL_AtomicGet(&SDL_EventQ.active)) {
550  /* We get a few spurious events at shutdown, so don't warn then */
551  if (action != SDL_ADDEVENT) {
552  SDL_SetError("The event system has been shut down");
553  }
554  return (-1);
555  }
556  /* Lock the event queue */
557  used = 0;
558  if (!SDL_EventQ.lock || SDL_LockMutex(SDL_EventQ.lock) == 0) {
559  if (action == SDL_ADDEVENT) {
560  for (i = 0; i < numevents; ++i) {
561  used += SDL_AddEvent(&events[i]);
562  }
563  } else {
564  SDL_EventEntry *entry, *next;
565  SDL_SysWMEntry *wmmsg, *wmmsg_next;
566  Uint32 type;
567 
568  if (action == SDL_GETEVENT) {
569  /* Clean out any used wmmsg data
570  FIXME: Do we want to retain the data for some period of time?
571  */
572  for (wmmsg = SDL_EventQ.wmmsg_used; wmmsg; wmmsg = wmmsg_next) {
573  wmmsg_next = wmmsg->next;
574  wmmsg->next = SDL_EventQ.wmmsg_free;
575  SDL_EventQ.wmmsg_free = wmmsg;
576  }
577  SDL_EventQ.wmmsg_used = NULL;
578  }
579 
580  for (entry = SDL_EventQ.head; entry && (!events || used < numevents); entry = next) {
581  next = entry->next;
582  type = entry->event.type;
583  if (minType <= type && type <= maxType) {
584  if (events) {
585  events[used] = entry->event;
586  if (entry->event.type == SDL_SYSWMEVENT) {
587  /* We need to copy the wmmsg somewhere safe.
588  For now we'll guarantee it's valid at least until
589  the next call to SDL_PeepEvents()
590  */
591  if (SDL_EventQ.wmmsg_free) {
592  wmmsg = SDL_EventQ.wmmsg_free;
593  SDL_EventQ.wmmsg_free = wmmsg->next;
594  } else {
595  wmmsg = (SDL_SysWMEntry *)SDL_malloc(sizeof(*wmmsg));
596  }
597  wmmsg->msg = *entry->event.syswm.msg;
598  wmmsg->next = SDL_EventQ.wmmsg_used;
599  SDL_EventQ.wmmsg_used = wmmsg;
600  events[used].syswm.msg = &wmmsg->msg;
601  }
602 
603  if (action == SDL_GETEVENT) {
604  SDL_CutEvent(entry);
605  }
606  }
607  ++used;
608  }
609  }
610  }
611  if (SDL_EventQ.lock) {
613  }
614  } else {
615  return SDL_SetError("Couldn't lock event queue");
616  }
617  return (used);
618 }

References action, events, i, SDL_SysWMmsg::msg, SDL_SysWMEvent::msg, _SDL_SysWMEntry::next, NULL, SDL_AddEvent(), SDL_ADDEVENT, SDL_AtomicGet, SDL_CutEvent(), SDL_EventQ, SDL_GETEVENT, SDL_LockMutex, SDL_malloc, SDL_SetError, SDL_SYSWMEVENT, SDL_UnlockMutex, and SDL_Event::syswm.

Referenced by SDL_HasEvent(), SDL_HasEvents(), SDL_PushEvent(), and SDL_WaitEventTimeout().

◆ SDL_PollEvent()

int SDL_PollEvent ( SDL_Event event)

Polls for currently pending events.

Returns
1 if there are any pending events, or 0 if there are none available.
Parameters
eventIf not NULL, the next event is removed from the queue and stored in that area.

Definition at line 705 of file SDL_events.c.

706 {
707  return SDL_WaitEventTimeout(event, 0);
708 }

References SDL_WaitEventTimeout().

◆ SDL_PumpEvents()

void SDL_PumpEvents ( void  )

Pumps the event loop, gathering events from the input devices.

This function updates the event queue and internal input device state.

This should only be run in the thread that sets the video mode.

Definition at line 677 of file SDL_events.c.

678 {
680 
681  /* Get events from the video subsystem */
682  if (_this) {
684  }
685 #if !SDL_JOYSTICK_DISABLED
686  /* Check for joystick state change */
689  }
690 #endif
691 
692 #if !SDL_SENSOR_DISABLED
693  /* Check for sensor state change */
696  }
697 #endif
698 
699  SDL_SendPendingSignalEvents(); /* in case we had a signal handler fire, etc. */
700 }

References _this, SDL_VideoDevice::PumpEvents, SDL_disabled_events, SDL_GetVideoDevice(), SDL_JOYAXISMOTION, SDL_JoystickEventState, SDL_JoystickUpdate, SDL_QUERY, SDL_SendPendingSignalEvents(), SDL_SENSORUPDATE, and SDL_SensorUpdate.

Referenced by SDL_FlushEvents(), and SDL_WaitEventTimeout().

◆ SDL_PushEvent()

int SDL_PushEvent ( SDL_Event event)

Add an event to the event queue.

Returns
1 on success, 0 if the event was filtered, or -1 if the event queue was full or there was some other error.

Definition at line 748 of file SDL_events.c.

749 {
750  event->common.timestamp = SDL_GetTicks();
751 
757  }
758  return 0;
759  }
760 
761  if (SDL_event_watchers_count > 0) {
762  /* Make sure we only dispatch the current watcher list */
763  int i, event_watchers_count = SDL_event_watchers_count;
764 
766  for (i = 0; i < event_watchers_count; ++i) {
767  if (!SDL_event_watchers[i].removed) {
769  }
770  }
772 
774  for (i = SDL_event_watchers_count; i--; ) {
775  if (SDL_event_watchers[i].removed) {
777  if (i < SDL_event_watchers_count) {
779  }
780  }
781  }
783  }
784  }
785 
788  }
789  }
790  }
791 
792  if (SDL_PeepEvents(event, 1, SDL_ADDEVENT, 0, 0) <= 0) {
793  return -1;
794  }
795 
797 
798  return 1;
799 }

References SDL_EventWatcher::callback, i, SDL_ADDEVENT, SDL_event_watchers, SDL_event_watchers_count, SDL_event_watchers_dispatching, SDL_event_watchers_lock, SDL_event_watchers_removed, SDL_EventOK, SDL_FALSE, SDL_GestureProcessEvent(), SDL_GetTicks(), SDL_LockMutex, SDL_memmove, SDL_PeepEvents(), SDL_TRUE, SDL_UnlockMutex, and SDL_EventWatcher::userdata.

Referenced by SDL_SendAppEvent(), and SDL_SendSysWMEvent().

◆ SDL_RegisterEvents()

Uint32 SDL_RegisterEvents ( int  numevents)

This function allocates a set of user-defined events, and returns the beginning event number for that set of events.

If there aren't enough user-defined events left, this function returns (Uint32)-1

Definition at line 958 of file SDL_events.c.

959 {
960  Uint32 event_base;
961 
962  if ((numevents > 0) && (SDL_userevents+numevents <= SDL_LASTEVENT)) {
963  event_base = SDL_userevents;
964  SDL_userevents += numevents;
965  } else {
966  event_base = (Uint32)-1;
967  }
968  return event_base;
969 }

References SDL_LASTEVENT, and SDL_userevents.

◆ SDL_SendAppEvent()

int SDL_SendAppEvent ( SDL_EventType  eventType)

Definition at line 972 of file SDL_events.c.

973 {
974  int posted;
975 
976  posted = 0;
977  if (SDL_GetEventState(eventType) == SDL_ENABLE) {
979  event.type = eventType;
980  posted = (SDL_PushEvent(&event) > 0);
981  }
982  return (posted);
983 }

References SDL_ENABLE, SDL_GetEventState, and SDL_PushEvent().

Referenced by SDL_OnApplicationDidBecomeActive(), SDL_OnApplicationDidEnterBackground(), SDL_OnApplicationDidReceiveMemoryWarning(), SDL_OnApplicationWillEnterForeground(), SDL_OnApplicationWillResignActive(), SDL_OnApplicationWillTerminate(), SDL_SendKeymapChangedEvent(), and SDL_SendQuit().

◆ SDL_SendKeymapChangedEvent()

int SDL_SendKeymapChangedEvent ( void  )

Definition at line 1003 of file SDL_events.c.

1004 {
1006 }

References SDL_KEYMAPCHANGED, and SDL_SendAppEvent().

◆ SDL_SendSysWMEvent()

int SDL_SendSysWMEvent ( SDL_SysWMmsg message)

Definition at line 986 of file SDL_events.c.

987 {
988  int posted;
989 
990  posted = 0;
993  SDL_memset(&event, 0, sizeof(event));
994  event.type = SDL_SYSWMEVENT;
995  event.syswm.msg = message;
996  posted = (SDL_PushEvent(&event) > 0);
997  }
998  /* Update internal event state */
999  return (posted);
1000 }

References SDL_ENABLE, SDL_GetEventState, SDL_memset, SDL_PushEvent(), and SDL_SYSWMEVENT.

◆ SDL_SetEventFilter()

void SDL_SetEventFilter ( SDL_EventFilter  filter,
void userdata 
)

Sets up a filter to process all events before they change internal state and are posted to the internal event queue.

The filter is prototyped as:

int SDL_EventFilter(void *userdata, SDL_Event * event);

If the filter returns 1, then the event will be added to the internal queue. If it returns 0, then the event will be dropped from the queue, but the internal state will still be updated. This allows selective filtering of dynamically arriving events.

Warning
Be very careful of what you do in the event filter function, as it may run in a different thread!

There is one caveat when dealing with the SDL_QuitEvent event type. The event filter is only called when the window manager desires to close the application window. If the event filter returns 1, then the window will be closed, otherwise the window will remain open if possible.

If the quit event is generated by an interrupt signal, it will bypass the internal queue and be delivered to the application at the next event poll.

Definition at line 802 of file SDL_events.c.

803 {
805  /* Set filter and discard pending events */
807  SDL_EventOK.userdata = userdata;
809 
812  }
813  }
814 }

References SDL_EventWatcher::callback, SDL_event_watchers_lock, SDL_EventOK, SDL_FIRSTEVENT, SDL_FlushEvents(), SDL_LASTEVENT, SDL_LockMutex, SDL_UnlockMutex, and SDL_EventWatcher::userdata.

◆ SDL_StartEventLoop()

int SDL_StartEventLoop ( void  )

Definition at line 421 of file SDL_events.c.

422 {
423  /* We'll leave the event queue alone, since we might have gotten
424  some important events at launch (like SDL_DROPFILE)
425 
426  FIXME: Does this introduce any other bugs with events at startup?
427  */
428 
429  /* Create the lock and set ourselves active */
430 #if !SDL_THREADS_DISABLED
431  if (!SDL_EventQ.lock) {
432  SDL_EventQ.lock = SDL_CreateMutex();
433  if (SDL_EventQ.lock == NULL) {
434  return -1;
435  }
436  }
437 
440  if (SDL_event_watchers_lock == NULL) {
441  return -1;
442  }
443  }
444 #endif /* !SDL_THREADS_DISABLED */
445 
446  /* Process most event types */
450 #if 0 /* Leave these events enabled so apps can respond to items being dragged onto them at startup */
453 #endif
454 
455  SDL_AtomicSet(&SDL_EventQ.active, 1);
456 
457  return 0;
458 }

References NULL, SDL_AtomicSet, SDL_CreateMutex, SDL_DISABLE, SDL_DROPFILE, SDL_DROPTEXT, SDL_event_watchers_lock, SDL_EventQ, SDL_EventState(), SDL_SYSWMEVENT, SDL_TEXTEDITING, and SDL_TEXTINPUT.

Referenced by SDL_EventsInit().

◆ SDL_StopEventLoop()

void SDL_StopEventLoop ( void  )

Definition at line 347 of file SDL_events.c.

348 {
349  const char *report = SDL_GetHint("SDL_EVENT_QUEUE_STATISTICS");
350  int i;
351  SDL_EventEntry *entry;
352  SDL_SysWMEntry *wmmsg;
353 
354  if (SDL_EventQ.lock) {
356  }
357 
358  SDL_AtomicSet(&SDL_EventQ.active, 0);
359 
360  if (report && SDL_atoi(report)) {
361  SDL_Log("SDL EVENT QUEUE: Maximum events in-flight: %d\n",
362  SDL_EventQ.max_events_seen);
363  }
364 
365  /* Clean out EventQ */
366  for (entry = SDL_EventQ.head; entry; ) {
367  SDL_EventEntry *next = entry->next;
368  SDL_free(entry);
369  entry = next;
370  }
371  for (entry = SDL_EventQ.free; entry; ) {
372  SDL_EventEntry *next = entry->next;
373  SDL_free(entry);
374  entry = next;
375  }
376  for (wmmsg = SDL_EventQ.wmmsg_used; wmmsg; ) {
377  SDL_SysWMEntry *next = wmmsg->next;
378  SDL_free(wmmsg);
379  wmmsg = next;
380  }
381  for (wmmsg = SDL_EventQ.wmmsg_free; wmmsg; ) {
382  SDL_SysWMEntry *next = wmmsg->next;
383  SDL_free(wmmsg);
384  wmmsg = next;
385  }
386 
387  SDL_AtomicSet(&SDL_EventQ.count, 0);
388  SDL_EventQ.max_events_seen = 0;
389  SDL_EventQ.head = NULL;
390  SDL_EventQ.tail = NULL;
391  SDL_EventQ.free = NULL;
392  SDL_EventQ.wmmsg_used = NULL;
393  SDL_EventQ.wmmsg_free = NULL;
394 
395  /* Clear disabled event state */
396  for (i = 0; i < SDL_arraysize(SDL_disabled_events); ++i) {
399  }
400 
404  }
405  if (SDL_event_watchers) {
409  }
411 
412  if (SDL_EventQ.lock) {
415  SDL_EventQ.lock = NULL;
416  }
417 }

References i, _SDL_SysWMEntry::next, NULL, SDL_arraysize, SDL_atoi, SDL_AtomicSet, SDL_DestroyMutex, SDL_disabled_events, SDL_event_watchers, SDL_event_watchers_count, SDL_event_watchers_lock, SDL_EventOK, SDL_EventQ, SDL_free, SDL_GetHint, SDL_LockMutex, SDL_Log, SDL_UnlockMutex, and SDL_zero.

Referenced by SDL_EventsQuit().

◆ SDL_WaitEvent()

int SDL_WaitEvent ( SDL_Event event)

Waits indefinitely for the next available event.

Returns
1, or 0 if there was an error while waiting for events.
Parameters
eventIf not NULL, the next event is removed from the queue and stored in that area.

Definition at line 711 of file SDL_events.c.

712 {
713  return SDL_WaitEventTimeout(event, -1);
714 }

References SDL_WaitEventTimeout().

◆ SDL_WaitEventTimeout()

int SDL_WaitEventTimeout ( SDL_Event event,
int  timeout 
)

Waits until the specified timeout (in milliseconds) for the next available event.

Returns
1, or 0 if there was an error while waiting for events.
Parameters
eventIf not NULL, the next event is removed from the queue and stored in that area.
timeoutThe timeout (in milliseconds) to wait for next event.

Definition at line 717 of file SDL_events.c.

718 {
719  Uint32 expiration = 0;
720 
721  if (timeout > 0)
722  expiration = SDL_GetTicks() + timeout;
723 
724  for (;;) {
725  SDL_PumpEvents();
727  case -1:
728  return 0;
729  case 0:
730  if (timeout == 0) {
731  /* Polling and no events, just return */
732  return 0;
733  }
734  if (timeout > 0 && SDL_TICKS_PASSED(SDL_GetTicks(), expiration)) {
735  /* Timeout expired and no events */
736  return 0;
737  }
738  SDL_Delay(1);
739  break;
740  default:
741  /* Has events */
742  return 1;
743  }
744  }
745 }

References SDL_Delay, SDL_FIRSTEVENT, SDL_GETEVENT, SDL_GetTicks(), SDL_LASTEVENT, SDL_PeepEvents(), SDL_PumpEvents(), and SDL_TICKS_PASSED.

Referenced by SDL_PollEvent(), and SDL_WaitEvent().

Variable Documentation

◆ active

SDL_atomic_t active

Definition at line 84 of file SDL_events.c.

Referenced by SDL_BWin::WindowActivated().

◆ count

Definition at line 85 of file SDL_events.c.

◆ free

SDL_EventEntry* free

◆ head

SDL_EventEntry* head

Definition at line 87 of file SDL_events.c.

Referenced by mmap_alloc().

◆ lock

◆ max_events_seen

int max_events_seen

Definition at line 86 of file SDL_events.c.

◆ SDL_disabled_events

SDL_DisabledEventBlock* SDL_disabled_events[256]
static

Definition at line 63 of file SDL_events.c.

Referenced by SDL_EventState(), SDL_PumpEvents(), and SDL_StopEventLoop().

◆ SDL_DoEventLogging

int SDL_DoEventLogging = 0
static

Definition at line 96 of file SDL_events.c.

Referenced by SDL_AddEvent(), SDL_EventLoggingChanged(), and SDL_LogEvent().

◆ SDL_event_watchers

SDL_EventWatcher* SDL_event_watchers = NULL
static

◆ SDL_event_watchers_count

int SDL_event_watchers_count = 0
static

◆ SDL_event_watchers_dispatching

SDL_bool SDL_event_watchers_dispatching = SDL_FALSE
static

Definition at line 56 of file SDL_events.c.

Referenced by SDL_DelEventWatch(), and SDL_PushEvent().

◆ SDL_event_watchers_lock

◆ SDL_event_watchers_removed

SDL_bool SDL_event_watchers_removed = SDL_FALSE
static

Definition at line 57 of file SDL_events.c.

Referenced by SDL_DelEventWatch(), and SDL_PushEvent().

◆ SDL_EventOK

SDL_EventWatcher SDL_EventOK
static

◆ SDL_EventQ

◆ SDL_userevents

Uint32 SDL_userevents = SDL_USEREVENT
static

Definition at line 64 of file SDL_events.c.

Referenced by SDL_RegisterEvents().

◆ tail

SDL_EventEntry* tail

Definition at line 88 of file SDL_events.c.

◆ wmmsg_free

SDL_SysWMEntry* wmmsg_free

Definition at line 91 of file SDL_events.c.

◆ wmmsg_used

SDL_SysWMEntry* wmmsg_used

Definition at line 90 of file SDL_events.c.

SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:418
SDL_CONTROLLERDEVICEREMOVED
@ SDL_CONTROLLERDEVICEREMOVED
Definition: SDL_events.h:124
SDL_memset
#define SDL_memset
Definition: SDL_dynapi_overrides.h:386
PRINT_DOLLAR_EVENT
#define PRINT_DOLLAR_EVENT(event)
Uint32
uint32_t Uint32
Definition: SDL_stdinc.h:203
SDL_EventWatcher::callback
SDL_EventFilter callback
Definition: SDL_events.c:47
SDL_EventWatcher::removed
SDL_bool removed
Definition: SDL_events.c:49
SDL_strlcpy
#define SDL_strlcpy
Definition: SDL_dynapi_overrides.h:394
SDL_APP_TERMINATING
@ SDL_APP_TERMINATING
Definition: SDL_events.h:63
SDL_APP_DIDENTERBACKGROUND
@ SDL_APP_DIDENTERBACKGROUND
Definition: SDL_events.h:75
SDL_APP_DIDENTERFOREGROUND
@ SDL_APP_DIDENTERFOREGROUND
Definition: SDL_events.h:83
SDL_AddEvent
static int SDL_AddEvent(SDL_Event *event)
Definition: SDL_events.c:463
PRINT_MBUTTON_EVENT
#define PRINT_MBUTTON_EVENT(event)
SDL_LockMutex
#define SDL_LockMutex
Definition: SDL_dynapi_overrides.h:260
SDL_EventWatcher::userdata
void * userdata
Definition: SDL_events.c:48
SDL_event_watchers_count
static int SDL_event_watchers_count
Definition: SDL_events.c:55
SDL_ADDEVENT
@ SDL_ADDEVENT
Definition: SDL_events.h:616
NULL
#define NULL
Definition: begin_code.h:167
message
GLuint GLsizei const GLchar * message
Definition: SDL_opengl_glext.h:2486
SDL_WINDOWEVENT_FOCUS_LOST
@ SDL_WINDOWEVENT_FOCUS_LOST
Definition: SDL_video.h:165
timeout
GLbitfield GLuint64 timeout
Definition: SDL_opengl_glext.h:1486
SDL_CutEvent
static void SDL_CutEvent(SDL_EventEntry *entry)
Definition: SDL_events.c:517
SDL_KEYUP
@ SDL_KEYUP
Definition: SDL_events.h:97
SDL_WINDOWEVENT_CLOSE
@ SDL_WINDOWEVENT_CLOSE
Definition: SDL_video.h:166
SDL_CONTROLLERBUTTONDOWN
@ SDL_CONTROLLERBUTTONDOWN
Definition: SDL_events.h:121
SDL_SensorUpdate
#define SDL_SensorUpdate
Definition: SDL_dynapi_overrides.h:696
SDL_EventFilter
int(* SDL_EventFilter)(void *userdata, SDL_Event *event)
Definition: SDL_events.h:700
PRINT_JOYDEV_EVENT
#define PRINT_JOYDEV_EVENT(event)
SDL_WINDOWEVENT_ENTER
@ SDL_WINDOWEVENT_ENTER
Definition: SDL_video.h:162
SDL_DOLLARRECORD
@ SDL_DOLLARRECORD
Definition: SDL_events.h:134
SDL_SysWMmsg::msg
union SDL_SysWMmsg::@8 msg
SDL_ToggleDragAndDropSupport
void SDL_ToggleDragAndDropSupport(void)
Definition: SDL_video.c:1392
SDL_MOUSEBUTTONUP
@ SDL_MOUSEBUTTONUP
Definition: SDL_events.h:107
SDL_realloc
#define SDL_realloc
Definition: SDL_dynapi_overrides.h:376
SDL_WINDOWEVENT_RESIZED
@ SDL_WINDOWEVENT_RESIZED
Definition: SDL_video.h:154
SDL_TEXTEDITING
@ SDL_TEXTEDITING
Definition: SDL_events.h:98
SDL_CreateMutex
#define SDL_CreateMutex
Definition: SDL_dynapi_overrides.h:259
callback
static Uint32 callback(Uint32 interval, void *param)
Definition: testtimer.c:34
SDL_GestureProcessEvent
void SDL_GestureProcessEvent(SDL_Event *event)
Definition: SDL_gesture.c:551
SDL_ENABLE
#define SDL_ENABLE
Definition: SDL_events.h:760
uint
#define uint
SDL_DoEventLogging
static int SDL_DoEventLogging
Definition: SDL_events.c:96
SDL_JOYDEVICEREMOVED
@ SDL_JOYDEVICEREMOVED
Definition: SDL_events.h:117
SDL_WINDOWEVENT_MOVED
@ SDL_WINDOWEVENT_MOVED
Definition: SDL_video.h:152
SDL_GetHint
#define SDL_GetHint
Definition: SDL_dynapi_overrides.h:191
SDL_DisabledEventBlock::bits
Uint32 bits[8]
Definition: SDL_events.c:60
SDL_AUDIODEVICEADDED
@ SDL_AUDIODEVICEADDED
Definition: SDL_events.h:147
SDL_KEYDOWN
@ SDL_KEYDOWN
Definition: SDL_events.h:96
SDL_APP_LOWMEMORY
@ SDL_APP_LOWMEMORY
Definition: SDL_events.h:67
SDL_EventWatcher
Definition: SDL_events.c:46
SDL_CONTROLLERDEVICEADDED
@ SDL_CONTROLLERDEVICEADDED
Definition: SDL_events.h:123
SDL_QuitQuit
void SDL_QuitQuit(void)
Definition: SDL_quit.c:165
SDL_FIRSTEVENT
@ SDL_FIRSTEVENT
Definition: SDL_events.h:57
SDL_APP_WILLENTERFOREGROUND
@ SDL_APP_WILLENTERFOREGROUND
Definition: SDL_events.h:79
SDL_CONTROLLERAXISMOTION
@ SDL_CONTROLLERAXISMOTION
Definition: SDL_events.h:120
SDL_SysWMEvent::msg
SDL_SysWMmsg * msg
Definition: SDL_events.h:552
SDL_RENDER_TARGETS_RESET
@ SDL_RENDER_TARGETS_RESET
Definition: SDL_events.h:154
filter
GLint GLint GLint GLint GLint GLint GLint GLbitfield GLenum filter
Definition: SDL_opengl_glext.h:1187
SDL_event_watchers_lock
static SDL_mutex * SDL_event_watchers_lock
Definition: SDL_events.c:52
PRINT_DROP_EVENT
#define PRINT_DROP_EVENT(event)
SDL_WINDOWEVENT_SHOWN
@ SDL_WINDOWEVENT_SHOWN
Definition: SDL_video.h:148
SDL_FINGERUP
@ SDL_FINGERUP
Definition: SDL_events.h:129
SDL_EventQ
static struct @16 SDL_EventQ
SDL_QUERY
#define SDL_QUERY
Definition: SDL_events.h:757
SDL_PushEvent
int SDL_PushEvent(SDL_Event *event)
Add an event to the event queue.
Definition: SDL_events.c:748
SDL_PRESSED
#define SDL_PRESSED
Definition: SDL_events.h:50
PRINT_JBUTTON_EVENT
#define PRINT_JBUTTON_EVENT(event)
SDL_event_watchers_removed
static SDL_bool SDL_event_watchers_removed
Definition: SDL_events.c:57
event
struct _cl_event * event
Definition: SDL_opengl_glext.h:2652
SDL_FALSE
@ SDL_FALSE
Definition: SDL_stdinc.h:163
SDL_MOUSEMOTION
@ SDL_MOUSEMOTION
Definition: SDL_events.h:105
SDL_PRIs64
#define SDL_PRIs64
Definition: SDL_events.c:38
SDL_FINGERDOWN
@ SDL_FINGERDOWN
Definition: SDL_events.h:128
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:121
SDL_CONTROLLERBUTTONUP
@ SDL_CONTROLLERBUTTONUP
Definition: SDL_events.h:122
SDL_GetEventState
#define SDL_GetEventState(type)
Definition: SDL_events.h:773
SDL_Log
#define SDL_Log
Definition: SDL_dynapi_overrides.h:31
PRINT_AUDIODEV_EVENT
#define PRINT_AUDIODEV_EVENT(event)
SDL_TEXTINPUT
@ SDL_TEXTINPUT
Definition: SDL_events.h:99
SDL_DROPCOMPLETE
@ SDL_DROPCOMPLETE
Definition: SDL_events.h:144
SDL_event_watchers_dispatching
static SDL_bool SDL_event_watchers_dispatching
Definition: SDL_events.c:56
SDL_free
#define SDL_free
Definition: SDL_dynapi_overrides.h:377
SDL_SENSORUPDATE
@ SDL_SENSORUPDATE
Definition: SDL_events.h:151
SDL_DROPTEXT
@ SDL_DROPTEXT
Definition: SDL_events.h:142
SDL_max
#define SDL_max(x, y)
Definition: SDL_stdinc.h:407
SDL_QUIT
@ SDL_QUIT
Definition: SDL_events.h:60
name
GLuint const GLchar * name
Definition: SDL_opengl_glext.h:663
SDL_SendPendingSignalEvents
void SDL_SendPendingSignalEvents(void)
Definition: SDL_quit.c:175
SDL_WINDOWEVENT_EXPOSED
@ SDL_WINDOWEVENT_EXPOSED
Definition: SDL_video.h:150
SDL_MOUSEWHEEL
@ SDL_MOUSEWHEEL
Definition: SDL_events.h:108
SDL_GetTicks
Uint32 SDL_GetTicks(void)
Get the number of milliseconds since the SDL library initialization.
SDL_min
#define SDL_min(x, y)
Definition: SDL_stdinc.h:406
SDL_FINGERMOTION
@ SDL_FINGERMOTION
Definition: SDL_events.h:130
SDL_memmove
#define SDL_memmove
Definition: SDL_dynapi_overrides.h:388
SDL_WINDOWEVENT_HIT_TEST
@ SDL_WINDOWEVENT_HIT_TEST
Definition: SDL_video.h:168
SDL_JOYAXISMOTION
@ SDL_JOYAXISMOTION
Definition: SDL_events.h:111
SDL_QuitInit
int SDL_QuitInit(void)
Definition: SDL_quit.c:154
SDL_APP_WILLENTERBACKGROUND
@ SDL_APP_WILLENTERBACKGROUND
Definition: SDL_events.h:71
SDL_WINDOWEVENT_SIZE_CHANGED
@ SDL_WINDOWEVENT_SIZE_CHANGED
Definition: SDL_video.h:155
SDL_Delay
#define SDL_Delay
Definition: SDL_dynapi_overrides.h:486
PRINT_KEY_EVENT
#define PRINT_KEY_EVENT(event)
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:169
SDL_DISABLE
#define SDL_DISABLE
Definition: SDL_events.h:759
PRINT_CBUTTON_EVENT
#define PRINT_CBUTTON_EVENT(event)
SDL_WINDOWEVENT_MINIMIZED
@ SDL_WINDOWEVENT_MINIMIZED
Definition: SDL_video.h:158
SDL_WINDOWEVENT_TAKE_FOCUS
@ SDL_WINDOWEVENT_TAKE_FOCUS
Definition: SDL_video.h:167
SDL_EVENT_CASE
#define SDL_EVENT_CASE(x)
SDL_VideoDevice
Definition: SDL_sysvideo.h:149
PRINT_FINGER_EVENT
#define PRINT_FINGER_EVENT(event)
SDL_JoystickUpdate
#define SDL_JoystickUpdate
Definition: SDL_dynapi_overrides.h:209
SDL_DROPBEGIN
@ SDL_DROPBEGIN
Definition: SDL_events.h:143
SDL_KEYMAPCHANGED
@ SDL_KEYMAPCHANGED
Definition: SDL_events.h:100
action
set set set set set set set set set set set set set set set set set set set set *set set set macro pixldst op &r &cond WK op &r &cond WK op &r &cond WK else op &m &cond &ia op &r &cond WK else op &m &cond &ia elseif elseif else error unsupported base if elseif elseif else error unsupported unaligned pixldst unaligned endm macro pixst base base else pixldst base endif endm macro PF base if bpp PF set rept prefetch_distance PF set OFFSET endr endif endm macro preload_leading_step2 base if bpp ifc DST PF PF else if bpp lsl PF PF lsl PF PF lsl PF PF PF else PF lsl PF lsl PF lsl PF endif SIZE macro preload_middle scratch_holds_offset if bpp if else PF PF endif endif endif endm macro preload_trailing base if bpp if bpp *pix_per_block PF PF lsl PF PF PF PF PF else PF lsl PF lsl PF PF PF PF PF base if bpp if narrow_case &&bpp<=dst_w_bpp) PF bic, WK0, base, #31 PF pld,[WK0] PF add, WK1, base, X, LSL #bpp_shift PF sub, WK1, WK1, #1 PF bic, WK1, WK1, #31 PF cmp, WK1, WK0 PF beq, 90f PF pld,[WK1]90:.else PF bic, WK0, base, #31 PF pld,[WK0] PF add, WK1, base, X, lsl #bpp_shift PF sub, WK1, WK1, #1 PF bic, WK1, WK1, #31 PF cmp, WK1, WK0 PF beq, 92f91:PF add, WK0, WK0, #32 PF cmp, WK0, WK1 PF pld,[WK0] PF bne, 91b92:.endif .endif.endm.macro conditional_process1_helper cond, process_head, process_tail, numbytes, firstreg, unaligned_src, unaligned_mask, decrementx process_head cond, numbytes, firstreg, unaligned_src, unaligned_mask, 0 .if decrementx sub &cond X, X, #8 *numbytes/dst_w_bpp .endif process_tail cond, numbytes, firstreg .if !((flags) &FLAG_PROCESS_DOES_STORE) pixst cond, numbytes, firstreg, DST .endif.endm.macro conditional_process1 cond, process_head, process_tail, numbytes, firstreg, unaligned_src, unaligned_mask, decrementx .if(flags) &FLAG_BRANCH_OVER .ifc cond, mi bpl 100f .endif .ifc cond, cs bcc 100f .endif .ifc cond, ne beq 100f .endif conditional_process1_helper, process_head, process_tail, numbytes, firstreg, unaligned_src, unaligned_mask, decrementx100:.else conditional_process1_helper cond, process_head, process_tail, numbytes, firstreg, unaligned_src, unaligned_mask, decrementx .endif.endm.macro conditional_process2 test, cond1, cond2, process_head, process_tail, numbytes1, numbytes2, firstreg1, firstreg2, unaligned_src, unaligned_mask, decrementx .if(flags) &(FLAG_DST_READWRITE|FLAG_BRANCH_OVER|FLAG_PROCESS_CORRUPTS_PSR|FLAG_PROCESS_DOES_STORE) test conditional_process1 cond1, process_head, process_tail, numbytes1, firstreg1, unaligned_src, unaligned_mask, decrementx .if(flags) &FLAG_PROCESS_CORRUPTS_PSR test .endif conditional_process1 cond2, process_head, process_tail, numbytes2, firstreg2, unaligned_src, unaligned_mask, decrementx .else test process_head cond1, numbytes1, firstreg1, unaligned_src, unaligned_mask, 0 process_head cond2, numbytes2, firstreg2, unaligned_src, unaligned_mask, 0 .if decrementx sub &cond1 X, X, #8 *numbytes1/dst_w_bpp sub &cond2 X, X, #8 *numbytes2/dst_w_bpp .endif process_tail cond1, numbytes1, firstreg1 process_tail cond2, numbytes2, firstreg2 pixst cond1, numbytes1, firstreg1, DST pixst cond2, numbytes2, firstreg2, DST .endif.endm.macro test_bits_1_0_ptr .if(flags) &FLAG_PROCESS_CORRUPTS_WK0 movs SCRATCH, X, lsl #32-1 .else movs SCRATCH, WK0, lsl #32-1 .endif.endm.macro test_bits_3_2_ptr .if(flags) &FLAG_PROCESS_CORRUPTS_WK0 movs SCRATCH, X, lsl #32-3 .else movs SCRATCH, WK0, lsl #32-3 .endif.endm.macro leading_15bytes process_head, process_tail .set DECREMENT_X, 1 .if(flags) &FLAG_PROCESS_CORRUPTS_WK0 .set DECREMENT_X, 0 sub X, X, WK0, lsr #dst_bpp_shift str X,[sp, #LINE_SAVED_REG_COUNT *4] mov X, WK0 .endif .if dst_w_bpp==8 conditional_process2 test_bits_1_0_ptr, mi, cs, process_head, process_tail, 1, 2, 1, 2, 1, 1, DECREMENT_X .elseif dst_w_bpp==16 test_bits_1_0_ptr conditional_process1 cs, process_head, process_tail, 2, 2, 1, 1, DECREMENT_X .endif conditional_process2 test_bits_3_2_ptr, mi, cs, process_head, process_tail, 4, 8, 1, 2, 1, 1, DECREMENT_X .if(flags) &FLAG_PROCESS_CORRUPTS_WK0 ldr X,[sp, #LINE_SAVED_REG_COUNT *4] .endif.endm.macro test_bits_3_2_pix movs SCRATCH, X, lsl #dst_bpp_shift+32-3.endm.macro test_bits_1_0_pix .if dst_w_bpp==8 movs SCRATCH, X, lsl #dst_bpp_shift+32-1 .else movs SCRATCH, X, lsr #1 .endif.endm.macro trailing_15bytes process_head, process_tail, unaligned_src, unaligned_mask conditional_process2 test_bits_3_2_pix, cs, mi, process_head, process_tail, 8, 4, 0, 2, unaligned_src, unaligned_mask, 0 .if dst_w_bpp==16 test_bits_1_0_pix conditional_process1 cs, process_head, process_tail, 2, 0, unaligned_src, unaligned_mask, 0 .elseif dst_w_bpp==8 conditional_process2 test_bits_1_0_pix, cs, mi, process_head, process_tail, 2, 1, 0, 1, unaligned_src, unaligned_mask, 0 .endif.endm.macro wide_case_inner_loop process_head, process_tail, unaligned_src, unaligned_mask, dst_alignment110:.set SUBBLOCK, 0 .rept pix_per_block *dst_w_bpp/128 process_head, 16, 0, unaligned_src, unaligned_mask, 1 .if(src_bpp > 0) &&(mask_bpp==0) &&((flags) &FLAG_PROCESS_PRESERVES_SCRATCH) preload_middle src_bpp, SRC, 1 .elseif(src_bpp==0) &&(mask_bpp > 0) &&((flags) &FLAG_PROCESS_PRESERVES_SCRATCH) preload_middle mask_bpp, MASK, 1 .else preload_middle src_bpp, SRC, 0 preload_middle mask_bpp, MASK, 0 .endif .if(dst_r_bpp > 0) &&((SUBBLOCK % 2)==0) &&(((flags) &FLAG_NO_PRELOAD_DST)==0) PF pld,[DST, #32 *prefetch_distance - dst_alignment] .endif process_tail, 16, 0 .if !((flags) &FLAG_PROCESS_DOES_STORE) pixst, 16, 0, DST .endif .set SUBBLOCK, SUBBLOCK+1 .endr subs X, X, #pix_per_block bhs 110b.endm.macro wide_case_inner_loop_and_trailing_pixels process_head, process_tail, process_inner_loop, exit_label, unaligned_src, unaligned_mask .if dst_r_bpp > tst bne process_inner_loop DST_PRELOAD_BIAS endif preload_trailing SRC preload_trailing MASK DST endif add medium_case_inner_loop_and_trailing_pixels unaligned_mask endm macro medium_case_inner_loop_and_trailing_pixels DST endif subs bhs tst beq exit_label trailing_15bytes unaligned_mask endm macro narrow_case_inner_loop_and_trailing_pixels unaligned_mask tst conditional_process1 trailing_15bytes unaligned_mask endm macro switch_on_alignment action
Definition: pixman-arm-simd-asm.h:510
SDL_arraysize
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
SDL_calloc
#define SDL_calloc
Definition: SDL_dynapi_overrides.h:375
SDL_atoi
#define SDL_atoi
Definition: SDL_dynapi_overrides.h:410
SDL_FlushEvent
void SDL_FlushEvent(Uint32 type)
Definition: SDL_events.c:633
SDL_userevents
static Uint32 SDL_userevents
Definition: SDL_events.c:64
events
static SDL_Event events[EVENT_BUF_SIZE]
Definition: testgesture.c:39
SDL_TRUE
@ SDL_TRUE
Definition: SDL_stdinc.h:164
SDL_AddHintCallback
#define SDL_AddHintCallback
Definition: SDL_dynapi_overrides.h:192
SDL_EventState
Uint8 SDL_EventState(Uint32 type, int state)
Definition: SDL_events.c:909
SDL_AtomicAdd
#define SDL_AtomicAdd
Definition: SDL_dynapi_overrides.h:69
SDL_WINDOWEVENT_NONE
@ SDL_WINDOWEVENT_NONE
Definition: SDL_video.h:147
SDL_SetError
#define SDL_SetError
Definition: SDL_dynapi_overrides.h:30
SDL_EventOK
static SDL_EventWatcher SDL_EventOK
Definition: SDL_events.c:53
SDL_snprintf
#define SDL_snprintf
Definition: SDL_dynapi_overrides.h:40
SDL_HINT_EVENT_LOGGING
#define SDL_HINT_EVENT_LOGGING
A variable controlling whether SDL logs all events pushed onto its internal queue.
Definition: SDL_hints.h:1193
SDL_JOYBUTTONUP
@ SDL_JOYBUTTONUP
Definition: SDL_events.h:115
SDL_disabled_events
static SDL_DisabledEventBlock * SDL_disabled_events[256]
Definition: SDL_events.c:63
SDL_StopEventLoop
void SDL_StopEventLoop(void)
Definition: SDL_events.c:347
SDL_MULTIGESTURE
@ SDL_MULTIGESTURE
Definition: SDL_events.h:135
SDL_event_watchers
static SDL_EventWatcher * SDL_event_watchers
Definition: SDL_events.c:54
SDL_JoystickEventState
#define SDL_JoystickEventState
Definition: SDL_dynapi_overrides.h:210
SDL_RENDER_DEVICE_RESET
@ SDL_RENDER_DEVICE_RESET
Definition: SDL_events.h:155
SDL_DestroyMutex
#define SDL_DestroyMutex
Definition: SDL_dynapi_overrides.h:263
SDL_GETEVENT
@ SDL_GETEVENT
Definition: SDL_events.h:618
SDL_LogEvent
static void SDL_LogEvent(const SDL_Event *event)
Definition: SDL_events.c:105
SDL_MOUSEBUTTONDOWN
@ SDL_MOUSEBUTTONDOWN
Definition: SDL_events.h:106
SDL_JOYDEVICEADDED
@ SDL_JOYDEVICEADDED
Definition: SDL_events.h:116
SDL_SYSWMEVENT
@ SDL_SYSWMEVENT
Definition: SDL_events.h:93
SDL_WaitEventTimeout
int SDL_WaitEventTimeout(SDL_Event *event, int timeout)
Waits until the specified timeout (in milliseconds) for the next available event.
Definition: SDL_events.c:717
SDL_PumpEvents
void SDL_PumpEvents(void)
Definition: SDL_events.c:677
SDL_TICKS_PASSED
#define SDL_TICKS_PASSED(A, B)
Compare SDL ticks values, and return true if A has passed B.
Definition: SDL_timer.h:56
PRINT_CONTROLLERDEV_EVENT
#define PRINT_CONTROLLERDEV_EVENT(event)
SDL_MOUSEWHEEL_NORMAL
@ SDL_MOUSEWHEEL_NORMAL
Definition: SDL_mouse.h:68
bits
GLenum GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const void * bits
Definition: SDL_opengl_glext.h:6179
SDL_WINDOWEVENT_HIDDEN
@ SDL_WINDOWEVENT_HIDDEN
Definition: SDL_video.h:149
SDL_Event::syswm
SDL_SysWMEvent syswm
Definition: SDL_events.h:582
SDL_Event
General event structure.
Definition: SDL_events.h:558
SDL_WINDOWEVENT
@ SDL_WINDOWEVENT
Definition: SDL_events.h:92
SDL_GetVideoDevice
SDL_VideoDevice * SDL_GetVideoDevice(void)
Definition: SDL_video.c:586
SDL_EventLoggingChanged
static void SDL_EventLoggingChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
Definition: SDL_events.c:99
SDL_DelHintCallback
#define SDL_DelHintCallback
Definition: SDL_dynapi_overrides.h:193
SDL_WINDOWEVENT_RESTORED
@ SDL_WINDOWEVENT_RESTORED
Definition: SDL_video.h:160
SDL_AtomicSet
#define SDL_AtomicSet
Definition: SDL_dynapi_overrides.h:67
SDL_malloc
#define SDL_malloc
Definition: SDL_dynapi_overrides.h:374
SDL_JOYBUTTONDOWN
@ SDL_JOYBUTTONDOWN
Definition: SDL_events.h:114
SDL_AtomicGet
#define SDL_AtomicGet
Definition: SDL_dynapi_overrides.h:68
SDL_DisabledEventBlock
Definition: SDL_events.c:59
SDL_AUDIODEVICEREMOVED
@ SDL_AUDIODEVICEREMOVED
Definition: SDL_events.h:148
SDL_LASTEVENT
@ SDL_LASTEVENT
Definition: SDL_events.h:165
SDL_UnlockMutex
#define SDL_UnlockMutex
Definition: SDL_dynapi_overrides.h:262
SDL_CONTROLLERDEVICEREMAPPED
@ SDL_CONTROLLERDEVICEREMAPPED
Definition: SDL_events.h:125
SDL_WINDOWEVENT_FOCUS_GAINED
@ SDL_WINDOWEVENT_FOCUS_GAINED
Definition: SDL_video.h:164
SDL_VideoDevice::PumpEvents
void(* PumpEvents)(_THIS)
Definition: SDL_sysvideo.h:289
SDL_SendAppEvent
int SDL_SendAppEvent(SDL_EventType eventType)
Definition: SDL_events.c:972
SDL_PeepEvents
int SDL_PeepEvents(SDL_Event *events, int numevents, SDL_eventaction action, Uint32 minType, Uint32 maxType)
Definition: SDL_events.c:543
SDL_FlushEvents
void SDL_FlushEvents(Uint32 minType, Uint32 maxType)
Definition: SDL_events.c:639
type
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571
state
struct xkb_state * state
Definition: SDL_waylandsym.h:114
SDL_JOYHATMOTION
@ SDL_JOYHATMOTION
Definition: SDL_events.h:113
SDL_DOLLARGESTURE
@ SDL_DOLLARGESTURE
Definition: SDL_events.h:133
SDL_DROPFILE
@ SDL_DROPFILE
Definition: SDL_events.h:141
SDL_MAX_QUEUED_EVENTS
#define SDL_MAX_QUEUED_EVENTS
Definition: SDL_events.c:44
SDL_WINDOWEVENT_CASE
#define SDL_WINDOWEVENT_CASE(x)
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_StartEventLoop
int SDL_StartEventLoop(void)
Definition: SDL_events.c:421
SDL_WINDOWEVENT_MAXIMIZED
@ SDL_WINDOWEVENT_MAXIMIZED
Definition: SDL_video.h:159
SDL_JOYBALLMOTION
@ SDL_JOYBALLMOTION
Definition: SDL_events.h:112
SDL_CLIPBOARDUPDATE
@ SDL_CLIPBOARDUPDATE
Definition: SDL_events.h:138
SDL_PEEKEVENT
@ SDL_PEEKEVENT
Definition: SDL_events.h:617
SDL_WINDOWEVENT_LEAVE
@ SDL_WINDOWEVENT_LEAVE
Definition: SDL_video.h:163
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:161
SDL_USEREVENT
@ SDL_USEREVENT
Definition: SDL_events.h:160
Uint8
uint8_t Uint8
Definition: SDL_stdinc.h:179