image/imgs.h

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#ifndef           IMGS_H
#define           IMGS_H

#include          "img.h"
#include          "varable.h"

extern INT_VAR_H (image_default_resolution, 300, "Image resolution dpi");
INT32 check_legal_image_size(                     //get rest of image
                             INT32 x,             //x size required
                             INT32 y,             //ysize required
                             INT8 bits_per_pixel  //bpp required
                            );
                                 //copy rectangle
extern DLLSYM void copy_sub_image(IMAGE *source,     //source image
                                  INT32 xstart,      //start coords
                                  INT32 ystart,
                                  INT32 xext,        //extent to copy
                                  INT32 yext,
                                  IMAGE *dest,       //destination image
                                  INT32 xdest,       //destination coords
                                  INT32 ydest,
                                  BOOL8 adjust_grey  //shift to new bpp
                                 );
                                 //enlarge rectangle
extern DLLSYM void enlarge_sub_image(IMAGE *source,     //source image
                                     INT32 xstart,      //scaled start coords
                                     INT32 ystart,
                                     IMAGE *dest,       //destination image
                                     INT32 xdest,       //dest coords
                                     INT32 ydest,
                                     INT32 xext,        //destination extent
                                     INT32 yext,
                                     INT32 scale,       //scale factor
                                     BOOL8 adjust_grey  //shift to new bpp
                                    );
                                 //reduce rectangle
extern DLLSYM void fast_reduce_sub_image(IMAGE *source,     //source image
                                         INT32 xstart,      //start coords
                                         INT32 ystart,
                                         INT32 xext,        //extent to copy
                                         INT32 yext,
                                         IMAGE *dest,       //destination image
                                         INT32 xdest,       //destination coords
                                         INT32 ydest,
                                         INT32 scale,       //reduction factor
                                         BOOL8 adjust_grey  //shift to new bpp
                                        );
                                 //reduce rectangle
extern DLLSYM void reduce_sub_image(IMAGE *source,     //source image
                                    INT32 xstart,      //start coords
                                    INT32 ystart,
                                    INT32 xext,        //extent to copy
                                    INT32 yext,
                                    IMAGE *dest,       //destination image
                                    INT32 xdest,       //destination coords
                                    INT32 ydest,
                                    INT32 scale,       //reduction factor
                                    BOOL8 adjust_grey  //shift to new bpp
                                   );
extern DLLSYM void invert_image(              /*invert the image */
                                IMAGE *image  /*image ot invert */
                               );
                                 //bias rectangle
extern DLLSYM void bias_sub_image(IMAGE *source,  //source image
                                  INT32 xstart,   //start coords
                                  INT32 ystart,
                                  INT32 xext,     //extent to copy
                                  INT32 yext,
                                  UINT8 bias      //number to add
                                 );
                                 //copy rectangle
extern DLLSYM void starbase_to_normal(IMAGE *source,       //source image
                                      INT32 xstart,        //start coords
                                      INT32 ystart,
                                      INT32 xext,          //extent to copy
                                      INT32 yext,
                                      IMAGE *dest,         //destination image
                                      INT32 xdest,         //destination coords
                                      INT32 ydest,
                                      BOOL8 preserve_grey  //shift to new bpp
                                     );
#endif

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