kc3-lang/freetype/demos/src/ftgrays.h

• Show log

  Commit

• Hash : 291afa09
  Author :
  Date : 2000-03-08T14:14:55
  

  added the new "smooth" anti-aliaser (see the file "demos/src/ftgrays.c"), and modified "ftview" and "fttimer" to use it.. Note that this thing is still under heavy beta..

Download

• demos/src/ftgrays.h

• #ifndef FTGRAYS_H
  #define FTGRAYS_H
  
  typedef int   TScan;
  typedef long  TPos;
  typedef float TDist;
  
  #define FT_MAX_GRAY_SPANS  32
  
  typedef struct FT_GraySpan_
  {
    short          x;
    short          len;
    unsigned char  coverage;
  
  } FT_GraySpan;
  
  typedef int (*FT_GraySpan_Func)( int           y,
                                   int           count,
                                   FT_GraySpan*  spans,
                                   void*         user );
                                          
  
  typedef struct TCell_
  {
    TScan  x;
    TScan  y;
    int    area;
    int    cover;
  
  } TCell, *PCell;
  
  
  typedef struct TRaster_
  {
    PCell   cells;
    int     max_cells;
    int     num_cells;
  
    TScan   min_ex, max_ex;
    TScan   min_ey, max_ey;
  
    int     area;
    int     cover;
    int     invalid;
  
    TScan   ex, ey;
    TScan   cx, cy;
    TPos    x,  y;
  
    TScan   last_ey;
  
    FT_Vector   bez_stack[32*3];
    int         lev_stack[32];
  
    FT_Outline  outline;
    FT_Bitmap   target;
  
    FT_GraySpan gray_spans[ FT_MAX_GRAY_SPANS ];
    int         num_gray_spans;
  
    FT_GraySpan_Func  render_span;
    void*             render_span_closure;
    int               span_y;
  
  } TRaster, *PRaster;
  
    extern
    int  grays_raster_render( TRaster*     raster,
                              FT_Outline*  outline,
                              FT_Bitmap*   target_map );
  
    extern
    int  grays_raster_init( FT_Raster    raster,
                            const char*  pool_base,
                            long         pool_size );
  
  #endif
  

Download