scummvm/backends/timer/psp/timer.cpp
2011-05-12 01:16:22 +02:00

97 lines
2.9 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
// Disable printf override in common/forbidden.h to avoid
// clashes with pspdebug.h from the PSP SDK.
// That header file uses
// __attribute__((format(printf,1,2)));
// which gets messed up by our override mechanism; this could
// be avoided by either changing the PSP SDK to use the equally
// legal and valid
// __attribute__((format(__printf__,1,2)));
// or by refining our printf override to use a varadic macro
// (which then wouldn't be portable, though).
// Anyway, for now we just disable the printf override globally
// for the PSP port
#define FORBIDDEN_SYMBOL_EXCEPTION_printf
#include "common/scummsys.h"
#if defined (__PSP__)
#include <pspthreadman.h>
#include "common/scummsys.h"
#include "common/timer.h"
#include "backends/platform/psp/thread.h"
#include "backends/timer/psp/timer.h"
//#define __PSP_DEBUG_FUNCS__ /* For debugging function calls */
//#define __PSP_DEBUG_PRINT__ /* For debug printouts */
#include "backends/platform/psp/trace.h"
bool PspTimer::start() {
DEBUG_ENTER_FUNC();
if (!_interval || !_callback)
return false;
_threadId = sceKernelCreateThread("timerThread", thread, PRIORITY_TIMER_THREAD, STACK_TIMER_THREAD, THREAD_ATTR_USER, 0);
if (_threadId < 0) { // error
PSP_ERROR("failed to create timer thread. Error code %d\n", _threadId);
return false;
}
PspTimer *_this = this; // trick to get into context when the thread starts
_init = true;
if (sceKernelStartThread(_threadId, sizeof(uint32 *), &_this) < 0) {
PSP_ERROR("failed to start thread %d\n", _threadId);
return false;
}
PSP_DEBUG_PRINT("created timer thread[%x]\n", _threadId);
return true;
}
int PspTimer::thread(SceSize, void *__this) {
DEBUG_ENTER_FUNC();
PspTimer *_this = *(PspTimer **)__this; // get our this for the context
_this->timerThread();
return 0;
};
void PspTimer::timerThread() {
DEBUG_ENTER_FUNC();
while (_init) {
sceKernelDelayThread(_interval);
PSP_DEBUG_PRINT("calling callback!\n");
_callback();
}
};
#endif /* __PSP__ */