166 lines
4.9 KiB
C++
166 lines
4.9 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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#ifndef SDL_COMMON_H
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#define SDL_COMMON_H
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#if defined(__SYMBIAN32__)
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#include <esdl\SDL.h>
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#else
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#include <SDL.h>
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#endif
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#include "backends/modular-backend.h"
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#include "backends/mutex/sdl/sdl-mutex.h"
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#include "backends/graphics/sdl/sdl-graphics.h"
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#include "backends/audiocd/sdl/sdl-audiocd.h"
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#include "graphics/scaler.h"
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namespace Audio {
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class MixerImpl;
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}
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#if !defined(_WIN32_WCE) && !defined(__SYMBIAN32__)
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// Uncomment this to enable the 'on screen display' code.
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#define USE_OSD 1
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#endif
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#if defined(MACOSX)
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// On Mac OS X, we need to double buffer the audio buffer, else anything
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// which produces sampled data with high latency (like the MT-32 emulator)
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// will sound terribly.
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// This could be enabled for more / most ports in the future, but needs some
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// testing.
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#define MIXER_DOUBLE_BUFFERING 1
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#endif
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class OSystem_SDL : public ModularBackend {
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public:
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OSystem_SDL();
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virtual ~OSystem_SDL();
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virtual void initBackend();
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// Get the number of milliseconds since the program was started.
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uint32 getMillis();
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// Delay for a specified amount of milliseconds
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void delayMillis(uint msecs);
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virtual void getTimeAndDate(TimeDate &t) const;
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// Get the next event.
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// Returns true if an event was retrieved.
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virtual bool pollEvent(Common::Event &event); // overloaded by CE backend
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// Define all hardware keys for keymapper
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virtual Common::HardwareKeySet *getHardwareKeySet();
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virtual void preprocessEvents(SDL_Event *event) {}
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// Set function that generates samples
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virtual void setupMixer();
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static void mixCallback(void *s, byte *samples, int len);
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virtual void closeMixer();
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// Quit
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virtual void quit(); // overloaded by CE backend
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void deinit();
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virtual void setWindowCaption(const char *caption);
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virtual void addSysArchivesToSearchSet(Common::SearchSet &s, int priority = 0);
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virtual Common::SeekableReadStream *createConfigReadStream();
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virtual Common::WriteStream *createConfigWriteStream();
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protected:
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bool _inited;
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SDL_AudioSpec _obtainedRate;
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// Keyboard mouse emulation. Disabled by fingolfin 2004-12-18.
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// I am keeping the rest of the code in for now, since the joystick
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// code (or rather, "hack") uses it, too.
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struct KbdMouse {
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int16 x, y, x_vel, y_vel, x_max, y_max, x_down_count, y_down_count;
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uint32 last_time, delay_time, x_down_time, y_down_time;
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};
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KbdMouse _km;
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// Scroll lock state - since SDL doesn't track it
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bool _scrollLock;
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// joystick
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SDL_Joystick *_joystick;
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virtual bool dispatchSDLEvent(SDL_Event &ev, Common::Event &event);
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// Handlers for specific SDL events, called by pollEvent.
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// This way, if a backend inherits fromt the SDL backend, it can
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// change the behavior of only a single event, without having to override all
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// of pollEvent.
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virtual bool handleKeyDown(SDL_Event &ev, Common::Event &event);
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virtual bool handleKeyUp(SDL_Event &ev, Common::Event &event);
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virtual bool handleMouseMotion(SDL_Event &ev, Common::Event &event);
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virtual bool handleMouseButtonDown(SDL_Event &ev, Common::Event &event);
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virtual bool handleMouseButtonUp(SDL_Event &ev, Common::Event &event);
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virtual bool handleJoyButtonDown(SDL_Event &ev, Common::Event &event);
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virtual bool handleJoyButtonUp(SDL_Event &ev, Common::Event &event);
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virtual bool handleJoyAxisMotion(SDL_Event &ev, Common::Event &event);
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#ifdef MIXER_DOUBLE_BUFFERING
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SDL_mutex *_soundMutex;
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SDL_cond *_soundCond;
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SDL_Thread *_soundThread;
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bool _soundThreadIsRunning;
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bool _soundThreadShouldQuit;
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byte _activeSoundBuf;
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uint _soundBufSize;
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byte *_soundBuffers[2];
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void mixerProducerThread();
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static int SDLCALL mixerProducerThreadEntry(void *arg);
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void initThreadedMixer(Audio::MixerImpl *mixer, uint bufSize);
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void deinitThreadedMixer();
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#endif
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SDL_TimerID _timerID;
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virtual void fillMouseEvent(Common::Event &event, int x, int y); // overloaded by CE backend
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void toggleMouseGrab();
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void handleKbdMouse();
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void setupIcon();
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virtual bool remapKey(SDL_Event &ev, Common::Event &event);
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};
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#endif
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