freetype1/test/blitter.h

   1 /****************************************************************************/
   2 /*                                                                          */
   3 /*  The FreeType project -- a free and portable quality TrueType renderer.  */
   4 /*                                                                          */
   5 /*  Copyright 1996-1999 by                                                  */
   6 /*  D. Turner, R.Wilhelm, and W. Lemberg                                    */
   7 /*                                                                          */
   8 /*  blitter.h: Support for blitting of bitmaps with various depth.          */
   9 /*                                                                          */
  10 /****************************************************************************/
  11
  12 #ifndef BLITTER_H
  13 #define BLITTER_H
  14
  15 #include <freetype.h>
  16
  17   /* <Function>                                                          */
  18   /*    Blit_Bitmap                                                      */
  19   /*                                                                     */
  20   /* <Description>                                                       */
  21   /*    blit a source bitmap to a target bitmap or pixmap                */
  22   /*                                                                     */
  23   /* <Input>                                                             */
  24   /*    target       :: target bitmap or pixmap                          */
  25   /*    source       :: source bitmap (depth must be 1)                  */
  26   /*    target_depth :: pixel bit depth of target map                    */
  27   /*    x_offset     :: horizontal offset of source in target            */
  28   /*    y_offset     :: vertical offset of source in target              */
  29   /*    color        :: color to use when blitting to color pixmap       */
  30   /*                                                                     */
  31   /* <Return>                                                            */
  32   /*    error code. 0 means success                                      */
  33   /*                                                                     */
  34   /* <Note>                                                              */
  35   /*    an error occurs when the target bit depth isn't supported, or    */
  36   /*    if the source's bit depth isn't 1.                               */
  37   /*                                                                     */
  38   /*    the offsets are relative to the top-left corner of the target    */
  39   /*    map. Positive y are downwards.                                   */
  40   /*                                                                     */
  41   extern
  42   int  Blit_Bitmap( TT_Raster_Map*  target,
  43                     TT_Raster_Map*  source,
  44                     int             target_depth,
  45                     int             x_offset,
  46                     int             y_offset,
  47                     int             color );
  48
  49 #endif
  50
  51
  52 /* End */