mirror of
https://github.com/libretro/scummvm.git
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319 lines
7.4 KiB
C++
319 lines
7.4 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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* 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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* 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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* $URL$
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* $Id$
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*
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*/
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#include "common/system.h"
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#include "base/main.h"
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#if defined(USE_NULL_DRIVER)
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#include "common/rect.h"
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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 "sound/mixer.h"
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class OSystem_NULL : public OSystem {
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protected:
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Common::SaveFileManager *_savefile;
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Audio::Mixer *_mixer;
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Common::TimerManager *_timer;
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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 bool hasFeature(Feature f);
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virtual void setFeatureState(Feature f, bool enable);
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virtual bool getFeatureState(Feature f);
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virtual const GraphicsMode *getSupportedGraphicsModes() const;
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virtual int getDefaultGraphicsMode() const;
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bool setGraphicsMode(const char *name);
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virtual bool setGraphicsMode(int mode);
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virtual int getGraphicsMode() const;
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virtual void initSize(uint width, uint height);
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virtual int16 getHeight();
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virtual int16 getWidth();
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virtual void setPalette(const byte *colors, uint start, uint num);
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virtual void grabPalette(byte *colors, uint start, uint num);
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virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
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virtual void updateScreen();
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virtual Graphics::Surface *lockScreen();
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virtual void unlockScreen();
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virtual void setShakePos(int shakeOffset);
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virtual void showOverlay();
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virtual void hideOverlay();
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virtual void clearOverlay();
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virtual void grabOverlay(OverlayColor *buf, int pitch);
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virtual void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
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virtual int16 getOverlayHeight();
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virtual int16 getOverlayWidth();
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virtual OverlayColor RGBToColor(uint8 r, uint8 g, uint8 b);
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virtual void colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b);
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virtual bool showMouse(bool visible);
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virtual void warpMouse(int x, int y);
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virtual void setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor = 255, int cursorTargetScale = 1);
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virtual bool pollEvent(Common::Event &event);
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virtual uint32 getMillis();
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virtual void delayMillis(uint msecs);
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virtual MutexRef createMutex(void);
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virtual void lockMutex(MutexRef mutex);
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virtual void unlockMutex(MutexRef mutex);
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virtual void deleteMutex(MutexRef mutex);
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typedef void (*SoundProc)(void *param, byte *buf, int len);
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virtual bool setSoundCallback(SoundProc proc, void *param);
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virtual void clearSoundCallback();
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virtual int getOutputSampleRate() const;
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virtual void quit();
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virtual void setWindowCaption(const char *caption);
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virtual Common::SaveFileManager *getSavefileManager();
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virtual Audio::Mixer *getMixer();
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virtual Common::TimerManager *getTimerManager();
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};
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static const OSystem::GraphicsMode s_supportedGraphicsModes[] = {
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{0, 0, 0}
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};
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OSystem_NULL::OSystem_NULL() {
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_savefile = 0;
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_mixer = 0;
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_timer = 0;
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}
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OSystem_NULL::~OSystem_NULL() {
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delete _savefile;
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delete _mixer;
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delete _timer;
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}
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void OSystem_NULL::initBackend() {
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_savefile = new DefaultSaveFileManager();
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_mixer = new Audio::Mixer();
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_timer = new DefaultTimerManager();
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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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OSystem::initBackend();
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}
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bool OSystem_NULL::hasFeature(Feature f) {
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return false;
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}
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void OSystem_NULL::setFeatureState(Feature f, bool enable) {
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}
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bool OSystem_NULL::getFeatureState(Feature f) {
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return false;
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}
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const OSystem::GraphicsMode* OSystem_NULL::getSupportedGraphicsModes() const {
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return s_supportedGraphicsModes;
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}
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int OSystem_NULL::getDefaultGraphicsMode() const {
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return -1;
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}
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bool OSystem_NULL::setGraphicsMode(const char *mode) {
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return true;
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}
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bool OSystem_NULL::setGraphicsMode(int mode) {
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return true;
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}
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int OSystem_NULL::getGraphicsMode() const {
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return -1;
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}
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void OSystem_NULL::initSize(uint width, uint height) {
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}
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int16 OSystem_NULL::getHeight() {
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return 320;
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}
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int16 OSystem_NULL::getWidth() {
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return 200;
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}
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void OSystem_NULL::setPalette(const byte *colors, uint start, uint num) {
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}
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void OSystem_NULL::grabPalette(byte *colors, uint start, uint num) {
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}
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void OSystem_NULL::copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h) {
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}
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void OSystem_NULL::updateScreen() {
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}
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Graphics::Surface *OSystem_NULL::lockScreen() {
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return 0;
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}
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void OSystem_NULL::unlockScreen() {
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}
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void OSystem_NULL::setShakePos(int shakeOffset) {
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}
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void OSystem_NULL::showOverlay() {
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}
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void OSystem_NULL::hideOverlay() {
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}
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void OSystem_NULL::clearOverlay() {
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}
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void OSystem_NULL::grabOverlay(OverlayColor *buf, int pitch) {
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}
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void OSystem_NULL::copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h) {
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}
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int16 OSystem_NULL::getOverlayHeight() {
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return getHeight();
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}
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int16 OSystem_NULL::getOverlayWidth() {
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return getWidth();
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}
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OverlayColor OSystem_NULL::RGBToColor(uint8 r, uint8 g, uint8 b) {
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return 0;
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}
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void OSystem_NULL::colorToRGB(OverlayColor color, uint8 &r, uint8 &g, uint8 &b) {
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}
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bool OSystem_NULL::showMouse(bool visible) {
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return true;
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}
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void OSystem_NULL::warpMouse(int x, int y) {
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}
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void OSystem_NULL::setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int cursorTargetScale) {
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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() {
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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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OSystem::MutexRef OSystem_NULL::createMutex(void) {
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return NULL;
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}
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void OSystem_NULL::lockMutex(MutexRef mutex) {
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}
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void OSystem_NULL::unlockMutex(MutexRef mutex) {
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}
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void OSystem_NULL::deleteMutex(MutexRef mutex) {
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}
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bool OSystem_NULL::setSoundCallback(SoundProc proc, void *param) {
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return true;
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}
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void OSystem_NULL::clearSoundCallback() {
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}
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int OSystem_NULL::getOutputSampleRate() const {
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return 22050;
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}
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void OSystem_NULL::quit() {
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}
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void OSystem_NULL::setWindowCaption(const char *caption) {
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}
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Common::SaveFileManager *OSystem_NULL::getSavefileManager() {
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assert(_savefile);
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return _savefile;
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}
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Audio::Mixer *OSystem_NULL::getMixer() {
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assert(_mixer);
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return _mixer;
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}
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Common::TimerManager *OSystem_NULL::getTimerManager() {
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assert(_timer);
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return _timer;
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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->quit(); // TODO: Consider removing / replacing this!
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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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