xpm.h

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#ifndef AFTERSTEP_XPM_H_HEADER_INCLUDED
#define AFTERSTEP_XPM_H_HEADER_INCLUDED

/* our own Xpm handling code : */

#include "scanline.h"

#ifdef __cplusplus
extern "C" {
#endif

struct ASColormap;

typedef enum
{
        XPM_Outside = 0,
        XPM_InFile,
        XPM_InImage,
        XPM_InComments,
        XPM_InString
}ASXpmParseState;

#define MAX_XPM_BPP     16

typedef struct ASXpmFile
{
        int      fd ;
        char   **data;                             /* preparsed and preloaded data */

#define AS_XPM_BUFFER_UNDO              8
#define AS_XPM_BUFFER_SIZE              8192

#ifdef HAVE_LIBXPM
        XpmImage xpmImage;
#else
        char     *buffer;
        size_t   bytes_in;
        size_t   curr_byte;
#endif

        int      curr_img;
        int      curr_img_line;

        ASXpmParseState parse_state;

        char    *str_buf ;
        size_t   str_buf_size ;

        unsigned short width, height, bpp;
        size_t     cmap_size;
        ASScanline scl ;

        ARGB32          *cmap, **cmap2;
        ASHashTable *cmap_name_xref;

        Bool do_alpha, full_alpha ;
}ASXpmFile;

typedef enum {
        XPM_Error = -2,
        XPM_EndOfFile = -1,
        XPM_EndOfImage = 0,
        XPM_Success = 1
}ASXpmStatus;

typedef struct ASXpmCharmap
{
        unsigned int count ;
        unsigned int cpp ;
        char *char_code ;
}ASXpmCharmap;

/*************************************************************************
 * High level xpm reading interface ;
 *************************************************************************/
void            close_xpm_file( ASXpmFile **xpm_file );
ASXpmFile  *open_xpm_file( const char *realfilename );
Bool            parse_xpm_header( ASXpmFile *xpm_file );
ASXpmStatus get_xpm_string( ASXpmFile *xpm_file );
ASImage    *create_xpm_image( ASXpmFile *xpm_file, int compression );
Bool            build_xpm_colormap( ASXpmFile *xpm_file );
Bool            convert_xpm_scanline( ASXpmFile *xpm_file, unsigned int line );

ASXpmCharmap *build_xpm_charmap( struct ASColormap *cmap, Bool has_alpha,
                                     ASXpmCharmap *reusable_memory );
void destroy_xpm_charmap( ASXpmCharmap *xpm_cmap, Bool reusable );

#ifdef __cplusplus
}
#endif

#endif /* AFTERSTEP_XPM_H_HEADER_INCLUDED */

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