mirror of
https://github.com/isledecomp/isle-portable.git
synced 2026-01-13 11:11:15 +00:00
72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
#pragma once
|
|
|
|
#include <SDL2/SDL.h>
|
|
#include <SDL2/SDL_timer.h>
|
|
#include <SDL2/SDL_mutex.h>
|
|
#include <map>
|
|
|
|
// https://wiki.libsdl.org/SDL3/README-migration#sdl_timerh
|
|
// https://wiki.libsdl.org/SDL3/README-migration#sdl_timerh | SDL_GetTicksNS()
|
|
|
|
#define SDL_GetTicksNS SDL_GetTicks
|
|
|
|
// time is in miliseconds not nanoseconds
|
|
#define SDL_NS_TO_MS(MS) (MS)
|
|
|
|
|
|
typedef Uint32 SDL3_TimerCallback (void *userdata, SDL_TimerID timerID, Uint32 interval);
|
|
|
|
struct SDL2TimerShimData {
|
|
SDL3_TimerCallback *callback2;
|
|
void *userdata2;
|
|
SDL_TimerID id;
|
|
};
|
|
|
|
static std::map<SDL_TimerID, void*> g_timers;
|
|
static SDL_mutex *g_timerMutex = NULL;
|
|
|
|
inline Uint32 shim_timer_callback (Uint32 interval, void *param)
|
|
{
|
|
const auto shim = static_cast<SDL2TimerShimData*>(param);
|
|
const Uint32 next = shim->callback2(shim->userdata2, shim->id, interval);
|
|
|
|
if (next == 0) {
|
|
SDL_LockMutex(g_timerMutex);
|
|
g_timers.erase(shim->id);
|
|
SDL_free(shim);
|
|
SDL_UnlockMutex(g_timerMutex);
|
|
}
|
|
|
|
return next;
|
|
}
|
|
|
|
inline SDL_TimerID SDL_AddTimer(Uint32 interval, SDL3_TimerCallback callback3, void* userdata)
|
|
{
|
|
const auto shim = static_cast<SDL2TimerShimData*>(SDL_malloc(sizeof(SDL2TimerShimData)));
|
|
shim->callback2 = callback3;
|
|
shim->userdata2 = userdata;
|
|
|
|
const SDL_TimerID id = ::SDL_AddTimer(interval, shim_timer_callback, shim);
|
|
shim->id = id;
|
|
|
|
SDL_LockMutex(g_timerMutex);
|
|
g_timers[id] = shim;
|
|
SDL_UnlockMutex(g_timerMutex);
|
|
|
|
return id;
|
|
}
|
|
|
|
inline SDL_bool SDL_RemoveTimer2(SDL_TimerID id)
|
|
{
|
|
SDL_LockMutex(g_timerMutex);
|
|
if (const auto it = g_timers.find(id); it != g_timers.end()) {
|
|
SDL_free(it->second);
|
|
g_timers.erase(it);
|
|
}
|
|
SDL_UnlockMutex(g_timerMutex);
|
|
|
|
return ::SDL_RemoveTimer(id);
|
|
}
|
|
|
|
#define SDL_RemoveTimer SDL_RemoveTimer2
|