Initial commit

backends/timer/sdl/sdl-timer.cpp

@@ -0,0 +1,64 @@
+
+/* 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/>.
+ *
+ */
+
+#include "common/scummsys.h"
+
+#if defined(SDL_BACKEND)
+
+#include "backends/timer/sdl/sdl-timer.h"
+
+#include "common/textconsole.h"
+
+#if SDL_VERSION_ATLEAST(3, 0, 0)
+static Uint32 timer_handler(void *userdata, SDL_TimerID timerID, Uint32 interval) {
+	((DefaultTimerManager *)userdata)->handler();
+	return interval;
+}
+#else
+static Uint32 timer_handler(Uint32 interval, void *param) {
+	((DefaultTimerManager *)param)->handler();
+	return interval;
+}
+#endif
+
+SdlTimerManager::SdlTimerManager() {
+#if !SDL_VERSION_ATLEAST(3, 0, 0)
+	// Initializes the SDL timer subsystem
+	if (SDL_InitSubSystem(SDL_INIT_TIMER) == -1) {
+		error("Could not initialize SDL: %s", SDL_GetError());
+	}
+#endif
+
+	// Creates the timer callback
+	_timerID = SDL_AddTimer(10, &timer_handler, this);
+}
+
+SdlTimerManager::~SdlTimerManager() {
+	// Removes the timer callback
+	SDL_RemoveTimer(_timerID);
+
+#if !SDL_VERSION_ATLEAST(3, 0, 0)
+	SDL_QuitSubSystem(SDL_INIT_TIMER);
+#endif
+}
+
+#endif

backends/timer/sdl/sdl-timer.h

@@ -0,0 +1,43 @@
+/* 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/>.
+ *
+ */
+
+#ifndef BACKENDS_TIMER_SDL_H
+#define BACKENDS_TIMER_SDL_H
+
+#include "backends/timer/default/default-timer.h"
+
+#include "backends/platform/sdl/sdl-sys.h"
+
+/**
+ * SDL timer manager. Setups the timer callback for
+ * DefaultTimerManager.
+ */
+class SdlTimerManager : public DefaultTimerManager {
+public:
+	SdlTimerManager();
+	virtual ~SdlTimerManager();
+
+protected:
+	SDL_TimerID _timerID;
+};
+
+
+#endif