150 lines
4.3 KiB
C++
150 lines
4.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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// We use some stdio.h functionality here thus we need to allow some
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// symbols. Alternatively, we could simply allow everything by defining
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// FORBIDDEN_SYMBOL_ALLOW_ALL
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#define FORBIDDEN_SYMBOL_EXCEPTION_FILE
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#define FORBIDDEN_SYMBOL_EXCEPTION_stdout
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#define FORBIDDEN_SYMBOL_EXCEPTION_stderr
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#define FORBIDDEN_SYMBOL_EXCEPTION_fputs
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#include "backends/modular-backend.h"
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#include "base/main.h"
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#if defined(USE_NULL_DRIVER)
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#include "backends/saves/default/default-saves.h"
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#include "backends/timer/default/default-timer.h"
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#include "backends/events/default/default-events.h"
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#include "backends/mutex/null/null-mutex.h"
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#include "backends/graphics/null/null-graphics.h"
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#include "audio/mixer_intern.h"
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#include "common/scummsys.h"
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/*
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* Include header files needed for the getFilesystemFactory() method.
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*/
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#if defined(__amigaos4__)
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#include "backends/fs/amigaos4/amigaos4-fs-factory.h"
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#elif defined(POSIX)
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#include "backends/fs/posix/posix-fs-factory.h"
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#elif defined(RISCOS)
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#include "backends/fs/riscos/riscos-fs-factory.h"
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#elif defined(WIN32)
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#include "backends/fs/windows/windows-fs-factory.h"
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#endif
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class OSystem_NULL : public ModularBackend, Common::EventSource {
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public:
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OSystem_NULL();
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virtual ~OSystem_NULL();
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virtual void initBackend();
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virtual Common::EventSource *getDefaultEventSource() { return this; }
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virtual bool pollEvent(Common::Event &event);
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virtual uint32 getMillis(bool skipRecord = false);
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virtual void delayMillis(uint msecs);
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virtual void getTimeAndDate(TimeDate &t) const {}
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virtual void logMessage(LogMessageType::Type type, const char *message);
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};
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OSystem_NULL::OSystem_NULL() {
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#if defined(__amigaos4__)
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_fsFactory = new AmigaOSFilesystemFactory();
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#elif defined(POSIX)
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_fsFactory = new POSIXFilesystemFactory();
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#elif defined(RISCOS)
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_fsFactory = new RISCOSFilesystemFactory();
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#elif defined(WIN32)
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_fsFactory = new WindowsFilesystemFactory();
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#else
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#error Unknown and unsupported FS backend
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#endif
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}
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OSystem_NULL::~OSystem_NULL() {
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}
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void OSystem_NULL::initBackend() {
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_mutexManager = new NullMutexManager();
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_timerManager = new DefaultTimerManager();
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_eventManager = new DefaultEventManager(this);
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_savefileManager = new DefaultSaveFileManager();
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_graphicsManager = new NullGraphicsManager();
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_mixer = new Audio::MixerImpl(this, 22050);
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((Audio::MixerImpl *)_mixer)->setReady(false);
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// Note that both the mixer and the timer manager are useless
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// this way; they need to be hooked into the system somehow to
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// be functional. Of course, can't do that in a NULL backend :).
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ModularBackend::initBackend();
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}
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bool OSystem_NULL::pollEvent(Common::Event &event) {
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return false;
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}
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uint32 OSystem_NULL::getMillis(bool skipRecord) {
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return 0;
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}
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void OSystem_NULL::delayMillis(uint msecs) {
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}
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void OSystem_NULL::logMessage(LogMessageType::Type type, const char *message) {
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FILE *output = 0;
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if (type == LogMessageType::kInfo || type == LogMessageType::kDebug)
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output = stdout;
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else
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output = stderr;
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fputs(message, output);
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fflush(output);
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}
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OSystem *OSystem_NULL_create() {
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return new OSystem_NULL();
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}
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int main(int argc, char *argv[]) {
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g_system = OSystem_NULL_create();
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assert(g_system);
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// Invoke the actual ScummVM main entry point:
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int res = scummvm_main(argc, argv);
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g_system->destroy();
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return res;
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}
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#else /* USE_NULL_DRIVER */
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OSystem *OSystem_NULL_create() {
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return NULL;
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}
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#endif
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