osdvector.h

   1 /*
   2     Copyright 2004-2005 Chris Tallon, 2006,2011-2012 Marten Richter
   3
   4     This file is part of VOMP.
   5
   6     VOMP is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     VOMP is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with VOMP; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 */
  20
  21 #ifndef OSDVECTOR_H
  22 #define OSDVECTOR_H
  23 #include "osd.h"
  24 #include "mutex.h"
  25 #include "colour.h"
  26 #include <set>
  27 #include <list>
  28 #include <map>
  29 #include <queue>
  30 #include <string>
  31 #include "tvmedia.h"
  32 #include "vdr.h"
  33
  34 #include "teletextdecodervbiebu.h"
  35
  36 enum SVGCommandInstr {
  37         DrawNoop,
  38         DrawPath,
  39         DrawGlyph,
  40         DrawImage,
  41         DrawTTchar,
  42         DrawClipping,
  43         DrawImageLoading
  44 };
  45 enum PathIndex {
  46         HorzLine,
  47         VertLine,
  48         Rectangle,
  49         Point
  50 };
  51
  52 enum Corner{
  53         TopLeft,
  54         TopRight,
  55         BottomLeft,
  56         BottomRight,
  57         TopMiddle,
  58         BottomMiddle
  59 };
  60
  61 typedef  unsigned int ImageIndex;
  62 typedef unsigned int LoadIndex;
  63
  64 class SVGCommand
  65 {
  66 public:
  67         SVGCommand()
  68     {
  69                 instr=DrawNoop;
  70                 x=y=w=h=reference=0;
  71     };
  72
  73         static SVGCommand PaintPath(float ix, float iy,float iw,float ih,PathIndex path,unsigned int ref)
  74         {
  75                 SVGCommand nc;
  76                 nc.instr=DrawPath;
  77                 nc.x=ix;
  78                 nc.y=iy;
  79                 nc.w=iw;
  80                 nc.h=ih;
  81                 nc.target.path_index=path;
  82                 nc.reference=ref;
  83                 return nc;
  84         };
  85
  86         static SVGCommand PaintImageLoading(LoadIndex load_in,float ix, float iy,float iw,float ih,unsigned int ref, Corner corner=TopLeft)
  87         {
  88                 SVGCommand nc;
  89                 nc.instr=DrawImageLoading;
  90                 nc.x=ix;
  91                 nc.y=iy;
  92                 nc.w=iw;
  93                 nc.h=ih;
  94                 nc.target.loadindex=load_in;
  95                 nc.reference=ref;
  96                 nc.corner=corner;
  97                 return nc;
  98         };
  99
 100         static SVGCommand PaintImage(float ix, float iy,float iw,float ih,ImageIndex image_in,unsigned int ref, Corner corner=TopLeft)
 101         {
 102                 SVGCommand nc;
 103                 nc.instr=DrawImage;
 104                 nc.x=ix;
 105                 nc.y=iy;
 106                 nc.w=iw;
 107                 nc.h=ih;
 108                 nc.target.image=image_in;
 109                 nc.reference=ref;
 110                 nc.corner=corner;
 111                 return nc;
 112         };
 113
 114
 115
 116         static SVGCommand PaintTTchar(float ix, float iy,float iw,float ih,unsigned int ttchar_in)
 117         {
 118                 SVGCommand nc;
 119                 nc.instr=DrawTTchar;
 120                 nc.x=ix;
 121                 nc.y=iy;
 122                 nc.w=iw;
 123                 nc.h=ih;
 124                 nc.reference=0;
 125                 nc.target.ttchar=ttchar_in;
 126                 nc.corner=TopLeft;
 127                 return nc;
 128         };
 129         static SVGCommand PaintClipping(float ix, float iy,float iw,float ih)
 130         {
 131                 SVGCommand nc;
 132                 nc.instr=DrawClipping;
 133                 nc.x=ix;
 134                 nc.y=iy;
 135                 nc.w=iw;
 136                 nc.h=ih;
 137                 nc.reference=0;
 138                 nc.target.ttchar=0;
 139                 return nc;
 140         };
 141
 142
 143         static SVGCommand PaintGlyph(float ix, float iy,wchar_t char_in,unsigned int ref)
 144         {
 145                 SVGCommand nc;
 146                 nc.instr=DrawGlyph;
 147                 nc.x=ix;
 148                 nc.y=iy;
 149                 nc.w=0;
 150                 nc.h=0;
 151                 nc.reference=ref;
 152                 nc.target.textchar=char_in;
 153                 return nc;
 154         };
 155
 156         bool Test(float tx,float ty,float tw, float th)
 157         {
 158                 return (x>=tx) && (y>=ty) && ((x+w)<=(tx+tw)) && ((y+h)<=(ty+th));
 159         }
 160         bool TTTest(float tox,float toy,float tx, float ty)
 161         {
 162                 return (x==tox) && (toy==y) && (w==tx) && (h==ty);
 163         }
 164         bool Outside(float tx,float ty,float tw, float th)
 165         {
 166                 return ((x+w)<tx) || ((y+h)<ty) || ((tx+tw) < x) || ((ty+th) < y);
 167         }
 168
 169         unsigned int getRef(){return reference;};
 170         ImageIndex getImageIndex() {
 171                 if (instr!=DrawImage) return 0;
 172                 else return target.image;
 173         };
 174         ImageIndex getLoadIndex() {
 175                 if (instr!=DrawImageLoading) return 0;
 176                 else return target.loadindex;
 177         };
 178
 179         SVGCommandInstr instr;
 180         float x,y,w,h;
 181         unsigned int reference;
 182         union {
 183                 PathIndex path_index; //path_index
 184                 wchar_t textchar;
 185                 ImageIndex image;
 186                 unsigned int ttchar;
 187                 LoadIndex loadindex;
 188         } target;
 189         Corner corner;
 190
 191 };
 192
 193 class SurfaceVector;
 194 class VDR_ResponsePacket;
 195
 196 struct SurfaceCommands{
 197         const SurfaceVector* surf;
 198         list<SVGCommand> commands;
 199         float x,y,w,h;
 200 };
 201
 202
 203 class OsdVector : public Osd
 204 {
 205   public:
 206     OsdVector();
 207     virtual ~OsdVector();
 208
 209
 210     int restore();
 211
 212     int getFD();
 213
 214     void screenShot(const char* fileName);
 215
 216     Surface * createNewSurface();
 217         void BeginPainting();
 218         void EndPainting();
 219
 220         void Blank();
 221
 222         void updateOrAddSurface(const SurfaceVector *surf,float x,float y,float height,float width,
 223                         list<SVGCommand>& commands);
 224         void removeSurface(const SurfaceVector *surf);
 225
 226         virtual float getFontHeight()=0;
 227         virtual float getCharWidth(wchar_t c)=0;
 228
 229         virtual ImageIndex getJpegRef(const char* fileName, int *width,int *height);
 230         virtual LoadIndex getTVMediaRef(TVMediaInfo& tvmedia,ImageIndex& image);
 231         virtual ImageIndex getMonoBitmapRef(void *base,int width,int height);
 232         virtual ImageIndex getImagePalette(int width,int height,const unsigned char *image_data,const unsigned int*palette_data);
 233         virtual void imageUploadLine(ImageIndex index,unsigned int j,unsigned int width,void *data)=0;
 234         void removeImageRef(const ImageIndex ref);
 235         void removeLoadIndexRef(const LoadIndex ref);
 236         unsigned int getColorRef(const Colour &c); //internally this is the same as getStyleRef
 237         unsigned int getStyleRef(const DrawStyle &c);
 238         virtual void removeStyleRef(unsigned int ref);
 239         virtual void getScreenSize(int &width, int &height)=0;
 240
 241         // should be only called from command thread
 242         void informPicture(LoadIndex index, ImageIndex i_index);
 243
 244
 245
 246
 247     int charSet() {return 2;}; //UTF-8
 248
 249
 250     class PictureDecoder;
 251     struct PictureInfo
 252     {
 253         enum PictType {
 254                 RGBAMemBlock,
 255                 EGLImage
 256         };
 257         PictType type;
 258         ULONG width;
 259         ULONG height;
 260         LoadIndex lindex;
 261     union {
 262         const void * image;
 263         unsigned int handle;
 264     };
 265         void *reference;
 266         PictureDecoder* decoder;
 267     };
 268
 269
 270     class PictureReader;
 271
 272     class PictureDecoder
 273     {
 274     public:
 275         PictureDecoder(PictureReader * treader) {reader=treader;};
 276         virtual ~PictureDecoder() {};
 277
 278         // its is always guaranted, that after getDecodedPicture a call to decodePicture follows, if the return value was true;
 279         virtual bool decodePicture(LoadIndex index, unsigned char * buffer, unsigned int length)=0;
 280
 281         virtual bool getDecodedPicture(struct PictureInfo& pict_inf)=0;
 282         virtual void freeReference(void * ref)=0;
 283
 284         virtual void init() {};
 285         virtual void shutdown() {};
 286
 287     protected:
 288         PictureReader * reader;
 289     };
 290
 291     class PictureReader: public Thread_TYPE {
 292     public:
 293
 294         ~PictureReader();
 295
 296         void init();
 297         void addDecoder(PictureDecoder*);
 298         void removeDecoder(PictureDecoder*);
 299
 300         void shutdown();
 301
 302
 303         bool processReceivedPictures();
 304
 305         // should be called from command thread
 306         void receivePicture(VDR_ResponsePacket *vresp);
 307
 308         void invalidateLoadIndex(LoadIndex index);
 309
 310
 311
 312
 313     protected:
 314
 315         void threadMethod();
 316         void threadPostStopCleanup();
 317
 318         Mutex pict_lock_incoming; //locks
 319         Mutex decoders_lock;
 320         std::queue<VDR_ResponsePacket*> pict_incoming;
 321         std::list<PictureDecoder*> decoders;
 322         set<LoadIndex> invalid_loadindex;
 323
 324         bool picture_update;
 325
 326     };
 327
 328     PictureReader *getPictReader() { return &reader;};
 329
 330
 331
 332 protected:
 333
 334     PictureReader reader;
 335
 336         void incImageRef(ImageIndex index);
 337         int getImageRef(ImageIndex index);
 338         virtual void destroyImageRef(ImageIndex index)=0;
 339         void incLoadIndexRef(LoadIndex index);
 340         int getLoadIndexRef(LoadIndex index);
 341
 342
 343         virtual ImageIndex createJpeg(const char* fileName, int *width,int *height)=0;
 344         virtual ImageIndex createMonoBitmap(void *base,int width,int height)=0;
 345         virtual ImageIndex createImagePalette(int width,int height,const unsigned char *image_data,const unsigned int*palette_data)=0;
 346         virtual void createPicture(struct PictureInfo& pict_inf)=0;
 347
 348         virtual LoadIndex loadTVMedia(TVMediaInfo& tvmedia);
 349
 350
 351
 352         map<ImageIndex,int> images_ref;
 353         map<void *,ImageIndex> monobitmaps;
 354         map<string,ImageIndex> jpegs;
 355         map<TVMediaInfo,ImageIndex> tvmedias;
 356
 357
 358
 359
 360
 361
 362
 363         map<LoadIndex,int> loadindex_ref;
 364         map<TVMediaInfo,LoadIndex> tvmedias_load;
 365         map<LoadIndex,TVMediaInfo> tvmedias_load_inv;
 366         map<LoadIndex,ImageIndex> tvmedias_loaded;
 367
 368
 369
 370         void incStyleRef(unsigned int index);
 371         int getStyleRef(ImageIndex index);
 372         virtual void destroyStyleRef(unsigned int index)=0;
 373         map<pair<Colour*,unsigned int>,unsigned int> styles;
 374         map<unsigned int,int> styles_ref;
 375         virtual unsigned int createStyleRef(const DrawStyle &c)=0;
 376         virtual unsigned int createColorRef(const Colour &c)=0;
 377
 378         void dereferenceSVGCommand(list<SVGCommand>& commands );
 379         void referenceSVGCommand(list<SVGCommand>& commands );
 380         void cleanupOrphanedRefs();
 381
 382
 383
 384         virtual void drawSetTrans(SurfaceCommands & sc)=0;
 385         virtual void executeDrawCommand(SVGCommand & command)=0;
 386
 387
 388
 389
 390         list<SurfaceCommands> scommands;
 391
 392         Mutex surfaces_mutex;
 393
 394         void drawSurfaces();
 395 };
 396
 397
 398
 399
 400 #endif