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scummvm/backends/platform/iphone/osys_main.h
Johannes Schickel a401f0a19e ALL: Replace cursorTargetScale in OSystem API with a simple "do not scale" logic. 
All uses of the old target scale API actually wanted to disallow scaling of
the mouse cursor. This commit adapts our API to this and thus simplifies
backend implementations.

Some backends, most notable the Wii and Android, did some implementation of
the cursor target scale, which I didn't adapt yet. I added a TODO for the
porters there.
2012-06-03 02:02:57 +02:00

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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.
*
*/
#ifndef BACKENDS_PLATFORM_IPHONE_OSYS_MAIN_H
#define BACKENDS_PLATFORM_IPHONE_OSYS_MAIN_H
#include "graphics/surface.h"
#include "iphone_common.h"
#include "backends/base-backend.h"
#include "common/events.h"
#include "audio/mixer_intern.h"
#include "backends/fs/posix/posix-fs-factory.h"
#include "graphics/colormasks.h"
#include "graphics/palette.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);
struct AQCallbackStruct {
AudioQueueRef queue;
uint32 frameCount;
AudioQueueBufferRef buffers[AUDIO_BUFFERS];
AudioStreamBasicDescription dataFormat;
};
class OSystem_IPHONE : public EventsBaseBackend, public PaletteManager {
protected:
static const OSystem::GraphicsMode s_supportedGraphicsModes[];
static AQCallbackStruct s_AudioQueue;
static SoundProc s_soundCallback;
static void *s_soundParam;
Audio::MixerImpl *_mixer;
VideoContext *_videoContext;
Graphics::Surface _framebuffer;
// For signaling that screen format set up might have failed.
TransactionError _gfxTransactionError;
// For use with the game texture
uint16 _gamePalette[256];
// For use with the mouse texture
uint16 _gamePaletteRGBA5551[256];
struct timeval _startTime;
uint32 _timeSuspended;
bool _mouseCursorPaletteEnabled;
uint16 _mouseCursorPalette[256];
Graphics::Surface _mouseBuffer;
uint16 _mouseKeyColor;
bool _mouseDirty;
bool _mouseNeedTextureUpdate;
long _lastMouseDown;
long _lastMouseTap;
long _queuedEventTime;
Common::Event _queuedInputEvent;
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;
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;
virtual bool setGraphicsMode(int mode);
virtual int getGraphicsMode() const;
virtual void initSize(uint width, uint height, const Graphics::PixelFormat *format);
virtual void beginGFXTransaction();
virtual TransactionError endGFXTransaction();
virtual int16 getHeight();
virtual int16 getWidth();
#ifdef USE_RGB_COLOR
virtual Graphics::PixelFormat getScreenFormat() const { return _framebuffer.format; }
virtual Common::List<Graphics::PixelFormat> getSupportedFormats() const;
#endif
virtual PaletteManager *getPaletteManager() { return this; }
protected:
// PaletteManager API
virtual void setPalette(const byte *colors, uint start, uint num);
virtual void grabPalette(byte *colors, uint start, uint num);
public:
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<5551>(); }
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, uint32 keycolor = 255, bool dontScale = false, const Graphics::PixelFormat *format = NULL);
virtual void setCursorPalette(const byte *colors, uint start, uint num);
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 void setTimerCallback(TimerProc callback, int interval);
virtual int getScreenChangeID() const { return _screenChangeCount; }
virtual void quit();
virtual void addSysArchivesToSearchSet(Common::SearchSet &s, int priority = 0);
virtual void getTimeAndDate(TimeDate &t) const;
virtual Audio::Mixer *getMixer();
void startSoundsystem();
void stopSoundsystem();
virtual Common::String getDefaultConfigFileName();
virtual void logMessage(LogMessageType::Type type, const char *message);
protected:
void initVideoContext();
void updateOutputSurface();
void internUpdateScreen();
void dirtyFullScreen();
void dirtyFullOverlayScreen();
void suspendLoop();
void drawDirtyRect(const Common::Rect &dirtyRect);
void updateMouseTexture();
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);
};
#endif
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