int AudioQueue_copy (AudioQueue* self, Uint8* buf, int size)
{
if (size <= 0) return 0;
if (SDL_SemValue(self->full_node) > 0) {
if (!self->buf) self->buf = self->cur->buf;
int cur_size = self->cur->size - (self->buf - self->cur->buf);
int size_taken = SDL_min(size, cur_size);
Copy(buf, self->buf, size_taken, Uint8);
cur_size -= size_taken;
if (cur_size <= 0) {
// move to the next node
SDL_SemPost(self->empty_node);
if (++self->cur - self->nodes >= self->n) self->cur = self->nodes;
self->buf = NULL;
buf += size_taken;
size -= size_taken;
SDL_SemWait(self->full_node); // this never blocks
return size_taken + AudioQueue_copy(self, buf, size);
}
else {
// didn't use the entire current node
self->buf += size_taken;
return size_taken;
}
}
else {
Zero(buf, size, Uint8);
return 0;
}
}
int Sync_Audio::sample_count() const
{
if ( !free_sem )
return 0;
int buf_free = SDL_SemValue( free_sem ) * buf_size + (buf_size - write_pos);
return buf_size * buf_count - buf_free;
}
int SDLCALL
ThreadFunc(void *data)
{
int threadnum = (int) (uintptr_t) data;
while (alive) {
SDL_SemWait(sem);
SDL_Log("Thread number %d has got the semaphore (value = %d)!\n",
threadnum, SDL_SemValue(sem));
SDL_Delay(200);
SDL_SemPost(sem);
SDL_Log("Thread number %d has released the semaphore (value = %d)!\n",
threadnum, SDL_SemValue(sem));
SDL_Delay(1); /* For the scheduler */
}
SDL_Log("Thread number %d exiting.\n", threadnum);
return 0;
}
extern "C" void projectM_render_pcm(gint16 pcm_data[2][512])
{
//SDL_mutexP(mutex); while ( SDL_SemValue(sem)==1 )
if ( SDL_SemValue(sem)==1 )
globalPM->pcm()->addPCM16(pcm_data);
//SDL_mutexV(mutex);
}
// Pause
extern "C" void Java_org_libsdl_app_SDLActivity_nativePause(
JNIEnv* env, jclass cls)
{
if (Android_Window) {
/* Signal the pause semaphore so the event loop knows to pause and (optionally) block itself */
if (!SDL_SemValue(Android_PauseSem)) SDL_SemPost(Android_PauseSem);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
}
}
/**
* A SDL timer callback function. Signals the supplied SDL semaphore
* if its value is small.
*
* @param interval The interval since the last call (in ms)
* @param param The pointer to the semaphore.
*
* @return The interval to the next call (required by SDL)
*/
static Uint32
glade_fps_limiter_fn( Uint32 interval, void *param) {
SDL_sem *sdl_semaphore = (SDL_sem *)param;
/* signal the semaphore if it is getting low */
if ( SDL_SemValue( sdl_semaphore) < 4) {
SDL_SemPost( sdl_semaphore);
}
return interval;
}
/*
* ===========
* AllocPortal
* ===========
*/
static portal_t *AllocPortal(void) {
if (debug) {
SDL_SemPost(semaphores.active_portals);
const uint32_t active_portals = SDL_SemValue(semaphores.active_portals);
if (active_portals > c_peak_portals)
c_peak_portals = active_portals;
}
return Mem_Malloc(sizeof(portal_t));
}
int Threads_Glue_SemWait(void *Ptr, int Max)
{
int have = 0;
assert(Ptr);
do {
if( SDL_SemWait( Ptr ) == -1 ) {
return -1;
}
have ++;
} while( SDL_SemValue(Ptr) && have < Max );
return have;
}
static mrb_value
mrb_sdl2_semaphore_get_value(mrb_state *mrb, mrb_value self)
{
Uint32 value;
mrb_sdl2_semaphore_data_t *data =
(mrb_sdl2_semaphore_data_t*)mrb_data_get_ptr(mrb, self, &mrb_sdl2_semaphore_data_type);
if (NULL == data->semaphore) {
return mrb_nil_value();
}
value = SDL_SemValue(data->semaphore);
return mrb_fixnum_value((mrb_int)value);
}
/**
* @brief
*/
winding_t *AllocWinding(int32_t points) {
if (debug) {
SDL_SemPost(semaphores.active_windings);
uint32_t active_windings = SDL_SemValue(semaphores.active_windings);
if (active_windings > c_peak_windings) {
c_peak_windings = active_windings;
}
}
return Mem_TagMalloc(sizeof(int32_t) + sizeof(vec3_t) * points, MEM_TAG_WINDING);
}
// Resume
extern "C" void Java_org_libsdl_app_SDLActivity_nativeResume(
JNIEnv* env, jclass cls)
{
if (Android_Window) {
/* Signal the resume semaphore so the event loop knows to resume and restore the GL Context
* We can't restore the GL Context here because it needs to be done on the SDL main thread
* and this function will be called from the Java thread instead.
*/
if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0);
}
}
void Sound_Queue::fill_buffer( Uint8* out, int count )
{
if ( SDL_SemValue( free_sem ) < buf_count - 1 )
{
currently_playing_ = buf( read_buf );
memcpy( out, buf( read_buf ), count );
read_buf = (read_buf + 1) % buf_count;
SDL_SemPost( free_sem );
}
else
{
memset( out, 0, count );
}
}
// Pause
extern "C" void Java_org_libsdl_app_SDLActivity_nativePause(
JNIEnv* env, jclass cls)
{
if (Android_Window) {
/* Signal the pause semaphore so the event loop knows to pause and (optionally) block itself */
if (!SDL_SemValue(Android_PauseSem)) SDL_SemPost(Android_PauseSem);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_LOST, 0, 0);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
}
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativePause()");
SDL_SendAppEvent(SDL_APP_WILLENTERBACKGROUND);
SDL_SendAppEvent(SDL_APP_DIDENTERBACKGROUND);
}
// Wait for D3D to finish processing and return the result
HRESULT CDirect3D::Wait(bool unlock) {
HRESULT res;
EnterCriticalSection(&cs);
while(thread_command != D3D_IDLE) {
wait = true;
LeaveCriticalSection(&cs);
#if LOG_D3D
LOG_MSG("D3D:Waiting for D3D thread to finish processing...(command: %d)", thread_command);
#endif
SDL_SemWait(thread_ack);
EnterCriticalSection(&cs);
wait = false;
}
#if LOG_D3D
if(SDL_SemValue(thread_ack)) LOG_MSG("D3D:Semaphore has value: %d!", SDL_SemValue(thread_ack));
#endif
res = thread_hr;
if(unlock) LeaveCriticalSection(&cs);
return res;
}
void UpdateScreen(void)
{
if (!params.scale2x) {
// do not use threading here, because realScreen == screen
if (params.useFlipSurface) SDL_Flip(realScreen);
else SDL_UpdateRect(realScreen, 0, 0, 0, 0);
return;
}
#if defined(__APPLE__)
if (SDL_SemValue(updateScreenThreadSem)) {
return;
}
#endif
if (SDL_MUSTLOCK(realScreen)) { if (SDL_LockSurface(realScreen) < 0) return; }
if (SDL_MUSTLOCK(screen)) {
if (SDL_LockSurface(screen) < 0) {
if (SDL_MUSTLOCK(realScreen)) SDL_UnlockSurface(realScreen);
return;
}
}
if (params.scanlines)
{
for (int i = HEIGHT-1; i >= 0; i--)
{
int* line = (int*)screen->pixels + i * PITCH + WIDTH-1;
int* lineA = (int*)realScreen->pixels + (i*2) * REAL_PITCH + (WIDTH*2-1);
int* lineB = (int*)realScreen->pixels + (i*2+1) * REAL_PITCH + (WIDTH*2-1);
for (int j = WIDTH; j--;)
{
int c = *(line--);
int dc = (c & 0xFEFEFE) >> 1;
*(lineA--) = c;
*(lineA--) = c;
*(lineB--) = dc;
*(lineB--) = dc;
}
}
}
else
{
for (int i = HEIGHT-1; i >= 0; i--)
/* @brief Run every job in the vpool queue and block until every job in the
* queue is done.
* @note It destroys the queue when it's done.
*/
void vpool_wait( ThreadQueue *queue )
{
int i, cnt;
SDL_cond *cond;
SDL_mutex *mutex;
vpoolThreadData *arg;
ThreadQueueData *node;
/* Create temporary threading structures. */
cond = SDL_CreateCond();
mutex = SDL_CreateMutex();
/* This might be a little ugly (and inefficient?) */
cnt = SDL_SemValue( queue->semaphore );
/* Allocate all vpoolThreadData objects */
arg = calloc( cnt, sizeof(vpoolThreadData) );
SDL_mutexP( mutex );
/* Initialize the vpoolThreadData */
for (i=0; i<cnt; i++) {
/* This is needed to keep the invariants of the queue */
while (SDL_SemWait( queue->semaphore ) == -1) {
/* Again, a really bad idea */
WARN("L%d: SDL_SemWait failed! Error: %s", __LINE__, SDL_GetError());
}
node = tq_dequeue( queue );
/* Set up arguments. */
arg[i].node = node;
arg[i].cond = cond;
arg[i].mutex = mutex;
arg[i].count = &cnt;
/* Launch new job. */
threadpool_newJob( vpool_worker, &arg[i] );
}
/* Wait for the threads to finish */
SDL_CondWait( cond, mutex );
SDL_mutexV( mutex );
/* Clean up */
SDL_DestroyMutex( mutex );
SDL_DestroyCond( cond );
tq_destroy( queue );
free(arg);
}
// Resume
extern "C" void Java_org_libsdl_app_SDLActivity_nativeResume(
JNIEnv* env, jclass cls)
{
__android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativeResume()");
SDL_SendAppEvent(SDL_APP_WILLENTERFOREGROUND);
SDL_SendAppEvent(SDL_APP_DIDENTERFOREGROUND);
if (Android_Window) {
/* Signal the resume semaphore so the event loop knows to resume and restore the GL Context
* We can't restore the GL Context here because it needs to be done on the SDL main thread
* and this function will be called from the Java thread instead.
*/
if (!SDL_SemValue(Android_ResumeSem)) SDL_SemPost(Android_ResumeSem);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_FOCUS_GAINED, 0, 0);
SDL_SendWindowEvent(Android_Window, SDL_WINDOWEVENT_RESTORED, 0, 0);
}
}
void PathStackFree(void* _Ptr) {
SDL_SemPost(g_PathStack.Sem);
SDL_LockMutex(g_PathStack.Lock);
int _Size = PATHTABLE_SIZE - SDL_SemValue(g_PathStack.Sem);
int _Bottom = _Size + g_PathStack.Top;
void* _Temp = NULL;
if(_Bottom >= PATHTABLE_SIZE)
_Bottom -= PATHTABLE_SIZE;
for(int i = 0; i < PATHTABLE_SIZE; ++i)
if(g_PathStack.Stack[i] == _Ptr) {
_Temp = g_PathStack.Stack[i];
g_PathStack.Stack[i] = g_PathStack.Stack[_Bottom];
g_PathStack.Stack[_Bottom] = _Temp;
break;
}
SDL_UnlockMutex(g_PathStack.Lock);
}
static int
kaillera_thread(void *arg)
{
kailleraInit();
/* print_version(); */
kailleraSetInfos(&kaillera_data);
kailleraSelectServerDialog(0);
if (SDL_SemValue(game_start_sem) == 0) {
/* server dialog returned and game didnt start */
/* release blocking thread */
my_player = -1;
SDL_SemPost(game_start_sem);
}
return 0;
}
int worker_func(void*)
{
// char projectM_data[1024];
SDL_TimerID title_timer = NULL;
std::string config_file;
config_file = read_config();
ConfigFile config(config_file);
int wvw = config.read<int>( "Window Width", 512 );
int wvh = config.read<int>( "Window Height", 512 );
int fullscreen = 0;
if (config.read("Fullscreen", true)) fullscreen = 1;
else fullscreen = 0;
init_display(wvw,wvh,&fvw,&fvh,fullscreen);
SDL_WM_SetCaption("projectM v1.00", "projectM v1.00");
/** Initialise projectM */
globalPM = new projectM(config_file);
SDL_SemPost(sem);
title_timer = SDL_AddTimer(500, get_xmms_title, NULL);
/** Initialise the thread */
// SDL_SemTryWait(sem);
while ( SDL_SemValue(sem)==1 ) {
projectMEvent evt;
projectMKeycode key;
projectMModifier mod;
/** Process SDL events */
SDL_Event event;
while ( SDL_PollEvent( &event ) ) {
/** Translate into projectM codes and process */
evt = sdl2pmEvent( event );
key = sdl2pmKeycode( event.key.keysym.sym );
mod = sdl2pmModifier( event.key.keysym.mod );
if ( evt == PROJECTM_KEYDOWN ) {
if(key == PROJECTM_K_c)
{
//SDL_SaveBMP(screen, "/home/pete/1.bmp");
saveSnapshotToFile();
}
if(key == PROJECTM_K_v)
{
// capture++;
}
if(key == PROJECTM_K_f)
{
int w, h;
if (fullscreen == 0) {
w = fvw;
h = fvh;
fullscreen = 1;
} else {
w = wvw;
h = wvh;
fullscreen = 0;
}
resize_display(w, h, fullscreen);
globalPM->projectM_resetGL( w, h );
}
else globalPM->key_handler(evt,key,mod);
}
else if ( evt == PROJECTM_VIDEORESIZE )
{
wvw=event.resize.w;
wvh=event.resize.h;
resize_display(wvw,wvh,fullscreen);
globalPM->projectM_resetGL( wvw, wvh );
}
else if ( evt == PROJECTM_VIDEOQUIT ) {
(void) gtk_idle_add (disable_projectm, NULL);
}
}
/** Add the waveform data */
/** Render the new frame */
// strcpy(title,xmms_remote_get_playlist_title(projectM_vtable.xmms_session, xmms_remote_get_playlist_pos(projectM_vtable.xmms_session)));
//printf("%s\n",title);
// strcpy(globalPM->title,title);
globalPM->renderFrame();
SDL_GL_SwapBuffers();
if (capture % 2 == 1) saveSnapshotToFile();
// SDL_SemPost(sem);
}
if(title_timer)
SDL_RemoveTimer(title_timer);
delete globalPM;
return 0;
}
unsigned int Semaphore::value()
{
return SDL_SemValue(semaphore);
}
template <typename T> bool queue<T>::empty()
{
return (SDL_SemValue(full_slots) == 0);
}
/*
* =================
* BrushBSP
*
* The incoming list will be freed before exiting
* =================
*/
tree_t *BrushBSP(brush_t *brushlist, vec3_t mins, vec3_t maxs) {
node_t *node;
brush_t *b;
int32_t c_faces, c_nonvisfaces;
int32_t c_brushes;
tree_t *tree;
int32_t i;
vec_t volume;
Com_Debug(DEBUG_ALL, "--- BrushBSP ---\n");
tree = AllocTree();
c_faces = 0;
c_nonvisfaces = 0;
c_brushes = 0;
for (b = brushlist; b; b = b->next) {
c_brushes++;
volume = BrushVolume(b);
if (volume < microvolume) {
Mon_SendSelect(ERROR_WARN, b->original->entity_num, b->original->brush_num, "Microbrush");
}
for (i = 0; i < b->num_sides; i++) {
if (b->sides[i].bevel) {
continue;
}
if (!b->sides[i].winding) {
continue;
}
if (b->sides[i].texinfo == TEXINFO_NODE) {
continue;
}
if (b->sides[i].visible) {
c_faces++;
} else {
c_nonvisfaces++;
}
}
AddPointToBounds(b->mins, tree->mins, tree->maxs);
AddPointToBounds(b->maxs, tree->mins, tree->maxs);
}
Com_Debug(DEBUG_ALL, "%5i brushes\n", c_brushes);
Com_Debug(DEBUG_ALL, "%5i visible faces\n", c_faces);
Com_Debug(DEBUG_ALL, "%5i nonvisible faces\n", c_nonvisfaces);
SDL_DestroySemaphore(semaphores.vis_nodes);
semaphores.vis_nodes = SDL_CreateSemaphore(0);
SDL_DestroySemaphore(semaphores.nonvis_nodes);
semaphores.nonvis_nodes = SDL_CreateSemaphore(0);
node = AllocNode();
node->volume = BrushFromBounds(mins, maxs);
tree->head_node = node;
node = BuildTree_r(node, brushlist);
const uint32_t vis_nodes = SDL_SemValue(semaphores.vis_nodes);
const uint32_t nonvis_nodes = SDL_SemValue(semaphores.nonvis_nodes);
Com_Debug(DEBUG_ALL, "%5i visible nodes\n", vis_nodes / 2 - nonvis_nodes);
Com_Debug(DEBUG_ALL, "%5i nonvis nodes\n", nonvis_nodes);
Com_Debug(DEBUG_ALL, "%5i leafs\n", (vis_nodes + 1) / 2);
return tree;
}
bool save_blocker::saves_are_blocked() {
return SDL_SemValue(sem_) == 0;
}
Uint32 SemValue(Sem *sem)
{
return SDL_SemValue(sem);
}
def_dll Uint32 sdl_semaphore::value()
{
return SDL_SemValue(_semaphore);
}
void switch_thread(void)
{
struct thread_entry *current = cores[CURRENT_CORE].running;
enable_irq();
switch (current->state)
{
case STATE_RUNNING:
{
SDL_UnlockMutex(m);
/* Any other thread waiting already will get it first */
SDL_LockMutex(m);
break;
} /* STATE_RUNNING: */
case STATE_BLOCKED:
{
int oldlevel;
SDL_UnlockMutex(m);
SDL_SemWait(current->context.s);
SDL_LockMutex(m);
oldlevel = disable_irq_save();
current->state = STATE_RUNNING;
restore_irq(oldlevel);
break;
} /* STATE_BLOCKED: */
case STATE_BLOCKED_W_TMO:
{
int result, oldlevel;
SDL_UnlockMutex(m);
result = SDL_SemWaitTimeout(current->context.s, current->tmo_tick);
SDL_LockMutex(m);
oldlevel = disable_irq_save();
if (current->state == STATE_BLOCKED_W_TMO)
{
/* Timed out */
remove_from_list_l(current->bqp, current);
#ifdef HAVE_WAKEUP_EXT_CB
if (current->wakeup_ext_cb != NULL)
current->wakeup_ext_cb(current);
#endif
current->state = STATE_RUNNING;
}
if (result == SDL_MUTEX_TIMEDOUT)
{
/* Other signals from an explicit wake could have been made before
* arriving here if we timed out waiting for the semaphore. Make
* sure the count is reset. */
while (SDL_SemValue(current->context.s) > 0)
SDL_SemTryWait(current->context.s);
}
restore_irq(oldlevel);
break;
} /* STATE_BLOCKED_W_TMO: */
case STATE_SLEEPING:
{
SDL_UnlockMutex(m);
SDL_SemWaitTimeout(current->context.s, current->tmo_tick);
SDL_LockMutex(m);
current->state = STATE_RUNNING;
break;
} /* STATE_SLEEPING: */
}
cores[CURRENT_CORE].running = current;
if (threads_status != THREADS_RUN)
thread_exit();
}
template <typename T> bool queue<T>::full()
{
return (SDL_SemValue(free_slots) == 0);
}
void save_blocker::unblock() {
assert(SDL_SemValue(sem_) == 0);
SDL_SemPost(sem_);
}
int Sound_Queue::sample_count() const
{
int buf_free = SDL_SemValue( free_sem ) * buf_size + (buf_size - write_pos);
return buf_size * buf_count - buf_free;
}
