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/* 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.
*
* $URL$
* $Id$
*
*/
#include "graphics/surface.h"
#include "iphone_common.h"
#include "backends/base-backend.h"
#include "common/events.h"
#include "sound/mixer_intern.h"
#include "backends/fs/posix/posix-fs-factory.h"
#include "graphics/colormasks.h"
#include <AudioToolbox/AudioQueue.h>
#define AUDIO_BUFFERS 3
#define WAVE_BUFFER_SIZE 2048
#define AUDIO_SAMPLE_RATE 44100
#define SCUMMVM_ROOT_PATH "/var/mobile/Library/ScummVM"
#define SCUMMVM_SAVE_PATH SCUMMVM_ROOT_PATH "/Savegames"
#define SCUMMVM_PREFS_PATH SCUMMVM_ROOT_PATH "/Preferences"
typedef void (*SoundProc)(void *param, byte *buf, int len);
typedef int (*TimerProc)(int interval);
typedef struct AQCallbackStruct {
AudioQueueRef queue;
uint32 frameCount;
AudioQueueBufferRef buffers[AUDIO_BUFFERS];
AudioStreamBasicDescription dataFormat;
} AQCallbackStruct;
class OSystem_IPHONE : public BaseBackend {
protected:
static const OSystem::GraphicsMode s_supportedGraphicsModes[];
static AQCallbackStruct s_AudioQueue;
static SoundProc s_soundCallback;
static void *s_soundParam;
Common::SaveFileManager *_savefile;
Audio::MixerImpl *_mixer;
Common::TimerManager *_timer;
Graphics::Surface _framebuffer;
byte *_offscreen;
OverlayColor *_overlayBuffer;
uint16 *_fullscreen;
uint16 _palette[256];
bool _overlayVisible;
uint16 _screenWidth;
uint16 _screenHeight;
struct timeval _startTime;
uint32 _timeSuspended;
bool _mouseVisible;
byte *_mouseBuf;
byte _mouseKeyColour;
uint _mouseWidth, _mouseHeight;
uint _mouseX, _mouseY;
int _mouseHotspotX, _mouseHotspotY;
bool _mouseDirty;
long _lastMouseDown;
long _lastMouseTap;
Common::Rect _lastDrawnMouseRect;
Common::Event _queuedInputEvent;
bool _needEventRestPeriod;
bool _secondaryTapped;
long _lastSecondaryDown;
long _lastSecondaryTap;
int _gestureStartX, _gestureStartY;
bool _mouseClickAndDragEnabled;
bool _touchpadModeEnabled;
int _lastPadX;
int _lastPadY;
int _lastDragPosX;
int _lastDragPosY;
int _timerCallbackNext;
int _timerCallbackTimer;
TimerProc _timerCallback;
Common::Array<Common::Rect> _dirtyRects;
Common::Array<Common::Rect> _dirtyOverlayRects;
ScreenOrientation _screenOrientation;
bool _fullScreenIsDirty;
bool _fullScreenOverlayIsDirty;
int _screenChangeCount;
FilesystemFactory *_fsFactory;
public:
OSystem_IPHONE();
virtual ~OSystem_IPHONE();
virtual void initBackend();
virtual bool hasFeature(Feature f);
virtual void setFeatureState(Feature f, bool enable);
virtual bool getFeatureState(Feature f);
virtual const GraphicsMode *getSupportedGraphicsModes() const;
virtual int getDefaultGraphicsMode() const;
bool setGraphicsMode(const char *name);
virtual bool setGraphicsMode(int mode);
virtual int getGraphicsMode() const;
virtual void initSize(uint width, uint height);
virtual int16 getHeight();
virtual int16 getWidth();
virtual void setPalette(const byte *colors, uint start, uint num);
virtual void grabPalette(byte *colors, uint start, uint num);
virtual void copyRectToScreen(const byte *buf, int pitch, int x, int y, int w, int h);
virtual void updateScreen();
virtual Graphics::Surface *lockScreen();
virtual void unlockScreen();
virtual void setShakePos(int shakeOffset);
virtual void showOverlay();
virtual void hideOverlay();
virtual void clearOverlay();
virtual void grabOverlay(OverlayColor *buf, int pitch);
virtual void copyRectToOverlay(const OverlayColor *buf, int pitch, int x, int y, int w, int h);
virtual int16 getOverlayHeight();
virtual int16 getOverlayWidth();
virtual Graphics::PixelFormat getOverlayFormat() const { return Graphics::createPixelFormat<565>(); }
virtual bool showMouse(bool visible);
virtual void warpMouse(int x, int y);
virtual void setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor = 255, int cursorTargetScale = 1);
virtual bool pollEvent(Common::Event &event);
virtual uint32 getMillis();
virtual void delayMillis(uint msecs);
virtual MutexRef createMutex(void);
virtual void lockMutex(MutexRef mutex);
virtual void unlockMutex(MutexRef mutex);
virtual void deleteMutex(MutexRef mutex);
static void mixCallback(void *sys, byte *samples, int len);
virtual void setupMixer(void);
virtual int getOutputSampleRate() const;
virtual void setTimerCallback(TimerProc callback, int interval);
virtual int getScreenChangeID() const { return _screenChangeCount; }
virtual void quit();
FilesystemFactory *getFilesystemFactory() { return _fsFactory; }
virtual void addSysArchivesToSearchSet(Common::SearchSet &s, int priority = 0);
virtual void getTimeAndDate(struct tm &t) const;
virtual Common::SaveFileManager *getSavefileManager();
virtual Audio::Mixer *getMixer();
virtual Common::TimerManager *getTimerManager();
void startSoundsystem();
void stopSoundsystem();
virtual Common::SeekableReadStream *createConfigReadStream();
virtual Common::WriteStream *createConfigWriteStream();
protected:
void internUpdateScreen();
void dirtyFullScreen();
void dirtyFullOverlayScreen();
void clipRectToScreen(int16 &x, int16 &y, int16 &w, int16 &h);
void suspendLoop();
void drawDirtyRect(const Common::Rect& dirtyRect);
void drawDirtyOverlayRect(const Common::Rect& dirtyRect);
void drawMouseCursorOnRectUpdate(const Common::Rect& updatedRect, const Common::Rect& mouseRect);
void updateHardwareSurfaceForRect(const Common::Rect& updatedRect);
static void AQBufferCallback(void *in, AudioQueueRef inQ, AudioQueueBufferRef outQB);
static int timerHandler(int t);
bool handleEvent_swipe(Common::Event &event, int direction);
void handleEvent_keyPressed(Common::Event &event, int keyPressed);
void handleEvent_orientationChanged(int orientation);
bool handleEvent_mouseDown(Common::Event &event, int x, int y);
bool handleEvent_mouseUp(Common::Event &event, int x, int y);
bool handleEvent_secondMouseDown(Common::Event &event, int x, int y);
bool handleEvent_secondMouseUp(Common::Event &event, int x, int y);
bool handleEvent_mouseDragged(Common::Event &event, int x, int y);
bool handleEvent_mouseSecondDragged(Common::Event &event, int x, int y);
};
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