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00075 #ifndef _PVSDL
00076 #define _PVSDL
00077
00078 #if P_SDL
00079
00080 #include <ptlib.h>
00081 #if defined(P_FREEBSD)
00082 #include <SDL11/SDL.h>
00083 #else
00084 #include <SDL/SDL.h>
00085 #endif
00086
00087 #undef main
00088
00089 class PSDLVideoFrame : public PObject
00090 {
00091 PCLASSINFO(PSDLVideoFrame, PObject);
00092 public:
00093 PSDLVideoFrame(
00094 unsigned newWidth,
00095 unsigned newHeight,
00096 Uint8 *data
00097 );
00098 PSDLVideoFrame(
00099 unsigned newWidth,
00100 unsigned newHeight,
00101 const void *_data
00102 );
00103
00104 ~PSDLVideoFrame();
00105
00106 unsigned GetWidth() { return width; }
00107 unsigned GetHeight() { return height; }
00108
00109 Uint8 *GetDataPointer() { return data; }
00110
00111 void PrintOn(ostream & str) const;
00112
00113 protected:
00114 void Initialise(unsigned newWidth, unsigned newHeight, Uint8 *_data);
00115
00116 unsigned width;
00117 unsigned height;
00118
00119 Uint8 *data;
00120 };
00121
00122
00123 class PSDLDisplayThread : public PThread
00124 {
00125 PCLASSINFO(PSDLDisplayThread, PThread);
00126 public:
00127 PSDLDisplayThread(
00128 BOOL _videoPIP
00129 );
00130 ~PSDLDisplayThread();
00131
00132 void Main();
00133
00136 BOOL AddFrame(PSDLVideoFrame *newFrame, BOOL isEncoding);
00137
00138 BOOL IsOpen();
00139
00140 virtual void Terminate();
00141 void RequestOpenWindow(BOOL isEncoding);
00142 void RequestCloseWindow(BOOL isEncoding);
00143
00144 protected:
00145 BOOL ScreenIsOpen();
00146 BOOL DisplayIsShutDown();
00147 void CloseWindow(BOOL isEncoding);
00148
00149 PSDLVideoFrame *GetNextFrame(BOOL isEncoding);
00150
00151 BOOL ResizeScreen(unsigned newWidth, unsigned newHeight);
00152 void InitDisplayPosn();
00153 void InitDisplayPosn(unsigned w, unsigned h);
00154 void CloseScreen();
00155 BOOL CreateOverlay(BOOL isEncoding);
00156 BOOL SetOverlaySize (BOOL isEncoding, unsigned _width, unsigned _height);
00157
00158 void WriteOutDisplay();
00159
00160 unsigned GetDisplayIndex(BOOL isEncoding);
00161
00164 BOOL SetFrameSize(BOOL isEncoding, unsigned _width, unsigned _height);
00165
00168 void ProcessSDLEvents(void);
00169
00170 BOOL Redraw(BOOL isEncoding, PSDLVideoFrame *frame);
00171
00172 enum { RemoteIndex = 0 };
00173 enum { EncodeIndex = 1 };
00174
00175 const char * GetDirName(BOOL isEncoding)
00176 { return (isEncoding ? "local" : "remote"); }
00177
00178 PMutex mutex;
00179 PSyncPoint commandSync;
00180 BOOL threadRunning;
00181
00182 SDL_Surface *screen;
00183 SDL_Overlay *overlay[2];
00184 SDL_Rect displayPosn[2];
00185
00186 unsigned width[2];
00187 unsigned height[2];
00188 unsigned oldScreenWidth, oldScreenHeight;
00189
00190 PString remoteName;
00191 BOOL displayIsShutDown;
00192 BOOL videoPIP;
00193
00194 BOOL closeEncWindow;
00195 BOOL closeRecWindow;
00196
00197 PSDLVideoFrame *nextEncFrame;
00198 PSDLVideoFrame *nextRcvFrame;
00199 };
00200
00201
00204 class PSDLVideoDevice : public PVideoOutputDevice
00205 {
00206 PCLASSINFO(PSDLVideoDevice, PVideoOutputDevice);
00207
00208 public:
00211 PSDLVideoDevice(
00212 const PString & _remoteName,
00213 BOOL _isEncoding,
00214 PSDLDisplayThread *_sdlThread
00215 );
00216
00219 ~PSDLVideoDevice();
00220
00223 virtual BOOL Open(
00224 const PString & ,
00225 BOOL = TRUE
00226 ) { return TRUE; }
00227
00230 BOOL Close();
00231
00234 BOOL IsOpen();
00235
00236 unsigned GetFrameWidth() const { return width; }
00237
00238 unsigned GetFrameHeight() const { return height; }
00239
00243 BOOL Redraw (const void *frame);
00244
00247 virtual PStringList GetDeviceNames() const;
00248
00254 virtual PINDEX GetMaxFrameBytes()
00255 { return 352 * 288 * 3 * 2; }
00256
00259 BOOL SetFrameSize (unsigned _width ,unsigned _height);
00260
00261 virtual PString GetRemoteName() const
00262 { return remoteName ; }
00263
00266 virtual void SetRemoteName(
00267 const PString & _remoteName
00268 ) { remoteName = _remoteName; }
00269
00272 void ForceDepth(int ) { }
00273
00274
00275 BOOL SetFrameData(
00276 unsigned x,
00277 unsigned y,
00278 unsigned width,
00279 unsigned height,
00280 const BYTE * data,
00281 BOOL endFrame = TRUE
00282 ) ;
00283
00286 BOOL EndFrame();
00287
00288 private:
00289 BOOL isEncoding;
00290 PString remoteName;
00291 PSDLDisplayThread *sdlThread;
00292 unsigned width, height;
00293 };
00294
00295 #endif // P_SDL
00296
00297 #endif
00298