00001 /*! \file 00002 \author victorien ferry & www.m4nkind.com 00003 \brief This file applies the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1 , read file COPYING. 00004 */ 00005 #ifndef COM_M4NKIND_OGLMachineLinux_H 00006 #define COM_M4NKIND_OGLMachineLinux_H 00007 #include "OGLMachine.h" 00008 00009 #include <GL/glx.h> 00010 #include <GL/gl.h> 00011 #include <GL/glu.h> 00012 #include <X11/extensions/xf86vmode.h> 00013 #include <X11/keysym.h> 00014 /*! 00015 \class OGLMachineLinux 00016 \ingroup VirtualMachineDocGroup 00017 \brief Defines a \mainprojectname Machine for linux systems, using OGLMachine for 3D and OSS for the sound server. 00018 */ 00019 00020 class OGLMachineLinux : public OGLMachine 00021 { 00022 /*================================================================= 00023 PUBLIC 00024 ==================================================================*/ 00025 public: 00026 /*! 00027 \brief Constructor. 00028 */ 00029 OGLMachineLinux(void); 00030 /*! 00031 \brief Destructor. 00032 */ 00033 virtual ~OGLMachineLinux(void); 00034 00035 /*! 00036 \brief Init 00037 */ 00038 virtual eVMResult InitMachine(); 00039 00040 /*! 00041 \brief Swap buffer so that what was drawn is shown. 00042 */ 00043 virtual void SwapMainScreenBuffer(); 00044 00045 /*! 00046 \brief Check the Process the message of the interface, in the real time: 00047 */ 00048 virtual void ProcessInterface(); 00049 00050 /*! 00051 \brief Method that update the cicular buffer. It is to be thrown 00052 by the main task message handling, for event GetSoundBufferEventHandle() 00053 */ 00054 static void UpdateCircularSoundBuffer(); 00055 00056 /*! 00057 \brief force a date to the clock passed to the sound objects. 00058 \param _seconds in second units. 00059 \param _fraction the following after-the-point-units of _seconds, like if the whole were a 64 bits integer. 00060 */ 00061 virtual void SetSoundCurrentTime(int _seconds,unsigned int _fraction ); 00062 00063 /*! 00064 \brief For Information, an image of the current sound buffer. 00065 This is always a 2 float(left,right) table: 00066 The buffer size may vary. It can be used by preview methods or 00067 live effects. 00068 \param _ppSoundBuffer pointer on pointer on the buffer to return. 00069 \param _pLength pointer on a unsigned int that return the length. 00070 */ 00071 virtual void GetCurrentSoundBufferImage(float ** const _ppSoundBuffer,unsigned int *_pLength) const; 00072 /*! 00073 \brief tool: change main volume [0,1]. 00074 Yes, you can saturate when >1. 00075 \param _newVolumeValue [0,1] 00076 */ 00077 virtual void SetSoundVolume(float _newVolumeValue); 00078 //{ m_SoundVolume = _newVolumeValue; }; 00079 /*! 00080 \brief tool: get main volume value [0,1]. 00081 \return VolumeValue [0,1] 00082 */ 00083 virtual float GetSoundVolume(); 00084 //{ return m_SoundVolume; }; 00085 /*! 00086 \brief Return the machine main play frequency, in herz, (tick per sec). 00087 \return freq (44100.0,22050.0,...) 00088 */ 00089 virtual float GetPlayFrequency(); 00090 00091 /*================================================================== 00092 Cultural Stuff 00093 ==================================================================*/ 00094 00095 /*! 00096 \brief Return the language of the machine, as a simple enum. It can be used 00097 by exemple 00098 \return an enum integer. 00099 */ 00100 virtual eMachineLocalization GetCurrentWorldLocalizationEnum(){ return eMachineLocalization_LocalisationNotImplemented; }; 00101 00102 /*================================================================== 00103 Disk Operating System Stuff. 00104 ==================================================================*/ 00105 #ifdef _ENGINE_EDITABLE_ 00106 /*! 00107 \brief In edition mode, ask a file path to a file requester. 00108 the string format should vary, but will be compatible with LoadFile() and SaveFile() 00109 \param _pDisplayString a string to inform to what's the file for. 00110 \param _pResultFileName the file path , returned. 00111 \param _nameMaxLength the maximum buffer size to write. 00112 \return true if _pDisplayString valid. 00113 */ 00114 virtual bool FileRequester(const char *_pDisplayString,char *_pResultFileName, unsigned int _nameMaxLength ); 00115 00116 #endif 00117 #ifdef _ENGINE_EDITABLE_ 00118 /*! 00119 \brief load a file into a memory chunk. You can load all in one row, or stream. 00120 memory is to be deleted by the CALLER with operator: "delete [] pointer", for each 00121 succesfull call. return 0L if failed. 00122 \param _pFilePath the path of the file to load 00123 \param _pFileStart an offset of where to start reading the file. 0 if all file. 00124 \param _LoadByteLength return the exact real length of what was read and returned, if OK. 00125 \param _maximumSizeLoad the maximum length to read 00126 \return the memory chunk, or 0L if failed. 00127 */ 00128 virtual const char *LoadFile(const char *_pFilePath,unsigned int _pFileStart,unsigned int &_LoadByteLength, unsigned int _maximumSizeLoad=0xffffffff); 00129 #endif 00130 #ifdef _ENGINE_EDITABLE_ 00131 /*! 00132 \brief write a file from a memory chunk. You can save all in one row, or stream. 00133 \param _pFilePath the path of the file to write 00134 \param _chunkToWrite your memory chunk to save, as char *. 00135 \param _ChunkLength the length of _chunkToWrite 00136 \param _append if true, file is continued. if false, file is rewritten. default to false. 00137 \return true if OK, false if not. 00138 */ 00139 virtual bool SaveFile(const char *_pFilePath,const char *_chunkToWrite,unsigned int _ChunkLength,bool _append=false); 00140 #endif 00141 #ifdef _ENGINE_EDITABLE_ 00142 /*! 00143 \brief in edition mode, redirection of machine task wait. 00144 \param _milliseconds time to wait. 00145 */ 00146 virtual void Sleep( unsigned int _milliseconds ); 00147 #endif 00148 /*================================================================== 00149 PROTECTED 00150 ==================================================================*/ 00151 protected: 00152 //! to be reached from process functions 00153 static OGLMachineLinux *m_LastInstance; 00154 //! true if fullscreen. 00155 bool m_fullscreen; 00156 //! true when windows or screen is shown, so we got to draw: 00157 bool m_active; 00158 //! screen dimension: can change when resizing: 00159 volatile unsigned int m_Width; 00160 //! screen dimension: can change when resizing: 00161 volatile unsigned int m_Height; 00162 typedef struct { 00163 Display *dpy; 00164 int screen; 00165 Window win; 00166 GLXContext ctx; 00167 XSetWindowAttributes attr; 00168 Bool fs; 00169 /* 00170 typedef struct { 00171 unsigned int dotclock; 00172 unsigned short hdisplay; 00173 unsigned short hsyncstart; 00174 unsigned short hsyncend; 00175 unsigned short htotal; 00176 unsigned short hskew; 00177 unsigned short vdisplay; 00178 unsigned short vsyncstart; 00179 unsigned short vsyncend; 00180 unsigned short vtotal; 00181 unsigned int flags; 00182 int privsize; 00183 #if defined(__cplusplus) || defined(c_plusplus) 00184 INT32 *c_private; 00185 #else 00186 INT32 *private; 00187 #endif 00188 } XF86VidModeModeInfo; 00189 */ 00190 XF86VidModeModeInfo **ppdeskMode; 00191 int x, y; 00192 unsigned int width, height; 00193 unsigned int depth; 00194 } GLWindow; 00195 //! GLWin object. 00196 GLWindow m_GLWin; 00197 /* 00198 \brief Tool, GLX window init. 00199 */ 00200 bool CreateGLWindow( int bits, bool fullscreenflag ); 00201 /* 00202 \brief Tool, GLX window end. 00203 */ 00204 void KillGLWindow(void); 00205 00206 00207 bool SoundInit_OSS(); 00208 /*! 00209 \brief protected sound init 00210 \param _window 00211 */ 00212 bool SoundInit(); 00213 /*! 00214 \brief protected sound exit 00215 */ 00216 void SoundExit(); 00217 00218 protected: 00219 00220 //! the current main sound volume of the machine.[0,1] 00221 float m_SoundVolume; 00222 00223 00224 //! Figure out how big the DSound buffer should be 1 * 2 channel * sizeof(short) 00225 //static DWORD m_dwDSBufferSize; 00226 //! stereo = 2 00227 //#define m_dwPrimaryChannels 2 00228 //! sec freq. 00229 //static DWORD m_dwPrimaryFreq; 00230 //! bytesize of one sound sample unit: ( 2 channel * sizeof(short) = 4) 00231 //#define m_nBlockAlign ((16/8) * m_dwPrimaryChannels) 00232 //! circular sound buffer: offset where to write. 00233 //static DWORD m_dwNextWriteOffset; 00234 00235 //! the m_dwDSBufferSize * 2 * sizeof(float) table passed to contextes: 00236 //static float *m_pStaticSoundBuffer; 00237 //! the total of amount played by a machine. 00238 unsigned int m_TotalPlaySize; 00239 //! 00240 int m_LastStartPlayTime_SecondUnit; 00241 //! 00242 unsigned int m_LastStartPlayTime_SecondFrac; 00243 00244 //! link the machine to a static machine list 00245 static OGLMachineLinux *m_pFirstMachine; 00246 OGLMachineLinux *m_pNextMachine; 00247 00248 //! 00249 static void *FSOUND_Software_OutputThread(void * arg); 00250 00251 static void FSOUND_Software_Fill(); 00252 #ifdef _ENGINE_EDITABLE_ 00253 //! true if MachineIsLockedForSoundManagement. so that we don't use a list that is worked on. 00254 volatile static bool m_MachineIsLockedForSoundManagement; 00255 volatile static bool m_MachineIsLockedForSoundUpdate; 00256 #endif 00257 00258 }; 00259 00260 00261 #endif 00262 00263
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