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Put all non-Windows source code into posix directory and its subdirectories

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This commit is contained in:
alexey.lysiuk 2014-12-18 11:52:29 +02:00
commit 1433bf3f78
37 changed files with 2574 additions and 2953 deletions
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206
src/sdl/i_timer.cpp
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@ -1,206 +0,0 @@
// Moved from sdl/i_system.cpp
#include <assert.h>
#include <signal.h>
#include <sys/time.h>
#include <SDL.h>
#include "basictypes.h"
#include "basicinlines.h"
#include "hardware.h"
#include "i_system.h"
#include "templates.h"
static DWORD TicStart;
static DWORD BaseTime;
static int TicFrozen;
// Signal based timer.
static Semaphore timerWait;
static int tics;
static DWORD sig_start;
void I_SelectTimer();
// [RH] Returns time in milliseconds
unsigned int I_MSTime (void)
{
unsigned int time = SDL_GetTicks ();
return time - BaseTime;
}
// Exactly the same thing, but based does no modification to the time.
unsigned int I_FPSTime()
{
return SDL_GetTicks();
}
//
// I_GetTime
// returns time in 1/35th second tics
//
int I_GetTimeSelect (bool saveMS)
{
I_SelectTimer();
return I_GetTime (saveMS);
}
int I_GetTimePolled (bool saveMS)
{
if (TicFrozen != 0)
{
return TicFrozen;
}
DWORD tm = SDL_GetTicks();
if (saveMS)
{
TicStart = tm;
}
return Scale(tm - BaseTime, TICRATE, 1000);
}
int I_GetTimeSignaled (bool saveMS)
{
if (saveMS)
{
TicStart = sig_start;
}
return tics;
}
int I_WaitForTicPolled (int prevtic)
{
int time;
assert (TicFrozen == 0);
while ((time = I_GetTimePolled(false)) <= prevtic)
;
return time;
}
int I_WaitForTicSignaled (int prevtic)
{
assert (TicFrozen == 0);
while(tics <= prevtic)
{
SEMAPHORE_WAIT(timerWait)
}
return tics;
}
void I_FreezeTimeSelect (bool frozen)
{
I_SelectTimer();
return I_FreezeTime (frozen);
}
void I_FreezeTimePolled (bool frozen)
{
if (frozen)
{
assert(TicFrozen == 0);
TicFrozen = I_GetTimePolled(false);
}
else
{
assert(TicFrozen != 0);
int froze = TicFrozen;
TicFrozen = 0;
int now = I_GetTimePolled(false);
BaseTime += (now - froze) * 1000 / TICRATE;
}
}
void I_FreezeTimeSignaled (bool frozen)
{
TicFrozen = frozen;
}
int I_WaitForTicSelect (int prevtic)
{
I_SelectTimer();
return I_WaitForTic (prevtic);
}
//
// I_HandleAlarm
// Should be called every time there is an alarm.
//
void I_HandleAlarm (int sig)
{
if(!TicFrozen)
tics++;
sig_start = SDL_GetTicks();
SEMAPHORE_SIGNAL(timerWait)
}
//
// I_SelectTimer
// Sets up the timer function based on if we can use signals for efficent CPU
// usage.
//
void I_SelectTimer()
{
SEMAPHORE_INIT(timerWait, 0, 0)
#ifndef __sun
signal(SIGALRM, I_HandleAlarm);
#else
struct sigaction alrmaction;
sigaction(SIGALRM, NULL, &alrmaction);
alrmaction.sa_handler = I_HandleAlarm;
sigaction(SIGALRM, &alrmaction, NULL);
#endif
struct itimerval itv;
itv.it_interval.tv_sec = itv.it_value.tv_sec = 0;
itv.it_interval.tv_usec = itv.it_value.tv_usec = 1000000/TICRATE;
if (setitimer(ITIMER_REAL, &itv, NULL) != 0)
{
I_GetTime = I_GetTimePolled;
I_FreezeTime = I_FreezeTimePolled;
I_WaitForTic = I_WaitForTicPolled;
}
else
{
I_GetTime = I_GetTimeSignaled;
I_FreezeTime = I_FreezeTimeSignaled;
I_WaitForTic = I_WaitForTicSignaled;
}
}
// Returns the fractional amount of a tic passed since the most recent tic
fixed_t I_GetTimeFrac (uint32 *ms)
{
DWORD now = SDL_GetTicks ();
if (ms) *ms = TicStart + (1000 / TICRATE);
if (TicStart == 0)
{
return FRACUNIT;
}
else
{
fixed_t frac = clamp<fixed_t> ((now - TicStart)*FRACUNIT*TICRATE/1000, 0, FRACUNIT);
return frac;
}
}
void I_InitTimer ()
{
I_GetTime = I_GetTimeSelect;
I_WaitForTic = I_WaitForTicSelect;
I_FreezeTime = I_FreezeTimeSelect;
}
void I_ShutdownTimer ()
{
}