///////////////////
// Initialize the standard Auxiliary Library
int InitializeAuxLib(const std::string& config, int bpp, int vidflags)
{
// We have already loaded all options from the config file at this time.
#ifdef linux
//XInitThreads(); // We should call this before any SDL video stuff and window creation
#endif
ConfigFile=config;
if(getenv("SDL_VIDEODRIVER"))
notes << "SDL_VIDEODRIVER=" << getenv("SDL_VIDEODRIVER") << endl;
// Solves problem with FPS in fullscreen
#ifdef WIN32
if(!getenv("SDL_VIDEODRIVER")) {
notes << "SDL_VIDEODRIVER not set, setting to directx" << endl;
putenv((char*)"SDL_VIDEODRIVER=directx");
}
#endif
// Initialize SDL
int SDLflags = SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE;
if(!bDedicated) {
SDLflags |= SDL_INIT_VIDEO;
} else {
hints << "DEDICATED MODE" << endl;
bDisableSound = true;
bJoystickSupport = false;
}
if(SDL_Init(SDLflags) == -1) {
errors << "Failed to initialize the SDL system!\nErrorMsg: " << std::string(SDL_GetError()) << endl;
#ifdef WIN32
// retry it with any available video driver
unsetenv("SDL_VIDEODRIVER");
if(SDL_Init(SDLflags) != -1)
hints << "... but we have success with the any driver" << endl;
// retry with windib
else if(putenv((char*)"SDL_VIDEODRIVER=windib") == 0 && SDL_Init(SDLflags) != -1)
hints << "... but we have success with the windib driver" << endl;
else
#endif
return false;
}
#ifndef DISABLE_JOYSTICK
if(bJoystickSupport) {
if(SDL_InitSubSystem(SDL_INIT_JOYSTICK) != 0) {
warnings << "WARNING: couldn't init joystick subystem: " << SDL_GetError() << endl;
bJoystickSupport = false;
}
}
#endif
if(!bDedicated && !SetVideoMode())
return false;
// Enable the system events
SDL_EventState(SDL_SYSWMEVENT, SDL_ENABLE);
SDL_EventState(SDL_VIDEOEXPOSE, SDL_ENABLE);
// Enable unicode and key repeat
SDL_EnableUNICODE(1);
SDL_EnableKeyRepeat(200,20);
/*
Note about the different sound vars:
bDisableSound - if the sound system+driver is disabled permanentely
tLXOptions->bSoundOn - if the sound is enabled temporarely (false -> volume=0, nothing else)
I.e., even with tLXOptions->bSoundOn=false (Audio.Enabled=false in config), the sound system
will be loaded. To start OLX without the sound system, use the -nosound parameter.
The console variable Audio.Enabled links to tLXOptions->bSoundOn.
The console command 'sound' also wraps around tLXOptions->bSoundOn.
tLXOptions->iSoundVolume will never be touched by OLX itself, only the user can modify it.
tLXOptions->bSoundOn will also not be touched by OLX itself, only user actions can modify it.
(Both points were somewhat broken earlier and kind of annoying.)
*/
if( !bDisableSound ) {
// Initialize sound
//if(!InitSoundSystem(22050, 1, 512)) {
if(!InitSoundSystem(44100, 1, 512)) {
warnings << "Failed the initialize the sound system" << endl;
bDisableSound = true;
}
}
if(bDisableSound) {
notes << "soundsystem completly disabled" << endl;
// NOTE: Don't change tLXOptions->bSoundOn here!
}
if( tLXOptions->bSoundOn ) {
StartSoundSystem();
}
else
StopSoundSystem();
// Give a seed to the random number generator
srand((unsigned int)time(NULL));
if(!bDedicated) {
SmartPointer<SDL_Surface> bmpIcon = LoadGameImage("data/icon.png", true);
if(bmpIcon.get())
SDL_WM_SetIcon(bmpIcon.get(), NULL);
}
InitEventQueue();
// Initialize the keyboard & mouse
InitEventSystem();
// Initialize timers
InitializeTimers();
#ifdef DEBUG
// Cache
InitCacheDebug();
#endif
return true;
}
static void RunFIFOTest(SDL_bool lock_free)
{
SDL_EventQueue queue;
WriterData writerData[NUM_WRITERS];
ReaderData readerData[NUM_READERS];
Uint32 start, end;
int i, j;
int grand_total;
printf("\nFIFO test---------------------------------------\n\n");
printf("Mode: %s\n", lock_free ? "LockFree" : "Mutex");
readersDone = SDL_CreateSemaphore(0);
writersDone = SDL_CreateSemaphore(0);
SDL_memset(&queue, 0xff, sizeof(queue));
InitEventQueue(&queue);
if (!lock_free) {
queue.mutex = SDL_CreateMutex();
}
start = SDL_GetTicks();
#ifdef TEST_SPINLOCK_FIFO
/* Start a monitoring thread */
if (lock_free) {
SDL_CreateThread(FIFO_Watcher, "FIFOWatcher", &queue);
}
#endif
/* Start the readers first */
printf("Starting %d readers\n", NUM_READERS);
SDL_zero(readerData);
SDL_AtomicSet(&readersRunning, NUM_READERS);
for (i = 0; i < NUM_READERS; ++i) {
char name[64];
SDL_snprintf(name, sizeof (name), "FIFOReader%d", i);
readerData[i].queue = &queue;
readerData[i].lock_free = lock_free;
SDL_CreateThread(FIFO_Reader, name, &readerData[i]);
}
/* Start up the writers */
printf("Starting %d writers\n", NUM_WRITERS);
SDL_zero(writerData);
SDL_AtomicSet(&writersRunning, NUM_WRITERS);
for (i = 0; i < NUM_WRITERS; ++i) {
char name[64];
SDL_snprintf(name, sizeof (name), "FIFOWriter%d", i);
writerData[i].queue = &queue;
writerData[i].index = i;
writerData[i].lock_free = lock_free;
SDL_CreateThread(FIFO_Writer, name, &writerData[i]);
}
/* Wait for the writers */
while (SDL_AtomicGet(&writersRunning) > 0) {
SDL_SemWait(writersDone);
}
/* Shut down the queue so readers exit */
queue.active = SDL_FALSE;
/* Wait for the readers */
while (SDL_AtomicGet(&readersRunning) > 0) {
SDL_SemWait(readersDone);
}
end = SDL_GetTicks();
SDL_DestroySemaphore(readersDone);
SDL_DestroySemaphore(writersDone);
if (!lock_free) {
SDL_DestroyMutex(queue.mutex);
}
printf("Finished in %f sec\n", (end - start) / 1000.f);
printf("\n");
for (i = 0; i < NUM_WRITERS; ++i) {
printf("Writer %d wrote %d events, had %d waits\n", i, EVENTS_PER_WRITER, writerData[i].waits);
}
printf("Writers wrote %d total events\n", NUM_WRITERS*EVENTS_PER_WRITER);
/* Print a breakdown of which readers read messages from which writer */
printf("\n");
grand_total = 0;
for (i = 0; i < NUM_READERS; ++i) {
int total = 0;
for (j = 0; j < NUM_WRITERS; ++j) {
total += readerData[i].counters[j];
}
grand_total += total;
printf("Reader %d read %d events, had %d waits\n", i, total, readerData[i].waits);
printf(" { ");
for (j = 0; j < NUM_WRITERS; ++j) {
if (j > 0) {
printf(", ");
}
printf("%d", readerData[i].counters[j]);
}
printf(" }\n");
}
printf("Readers read %d total events\n", grand_total);
}