Initial commit

backends/timer/psp/timer.cpp

@@ -0,0 +1,90 @@
+/* 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+// 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"
+
+PspTimerManager::PspTimerManager(uint32 interval) : _interval(interval * 1000), _threadId(-1), _init(false) {
+	DEBUG_ENTER_FUNC();
+
+	_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;
+	}
+
+	PspTimerManager *_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;
+	}
+
+	PSP_DEBUG_PRINT("created timer thread[%x]\n", _threadId);
+}
+
+int PspTimerManager::thread(SceSize, void *__this) {
+	DEBUG_ENTER_FUNC();
+	PspTimerManager *_this = *(PspTimerManager **)__this;		// get our this for the context
+
+	_this->timerThread();
+	return 0;
+};
+
+void PspTimerManager::timerThread() {
+	DEBUG_ENTER_FUNC();
+
+	while (_init) {
+		sceKernelDelayThread(_interval);
+		PSP_DEBUG_PRINT("calling callback!\n");
+		handler();
+	}
+};
+
+#endif /* __PSP__ */