#ifndef _IMAGE_H_ #define _IMAGE_H_ #include "io.h" #include "iolayer.h" #include "log.h" #include "stackmach.h" #ifndef _MSC_VER #include #endif #include #include #include #include #ifdef SUNOS #include #endif #ifndef PI #define PI 3.14159265358979323846 #endif #ifndef MAXINT #define MAXINT 2147483647 #endif #include "datatypes.h" undef_int i_has_format(char *frmt); /* constructors and destructors */ i_color *ICL_new_internal( unsigned char r,unsigned char g,unsigned char b,unsigned char a); i_color *ICL_set_internal(i_color *cl,unsigned char r,unsigned char g,unsigned char b,unsigned char a); void ICL_info (i_color *cl); void ICL_DESTROY (i_color *cl); void ICL_add (i_color *dst, i_color *src, int ch); extern i_fcolor *i_fcolor_new(double r, double g, double b, double a); extern void i_fcolor_destroy(i_fcolor *cl); extern void i_rgb_to_hsvf(i_fcolor *color); extern void i_hsv_to_rgbf(i_fcolor *color); extern void i_rgb_to_hsv(i_color *color); extern void i_hsv_to_rgb(i_color *color); i_img *IIM_new(int x,int y,int ch); void IIM_DESTROY(i_img *im); i_img *i_img_new( void ); i_img *i_img_empty(i_img *im,int x,int y); i_img *i_img_empty_ch(i_img *im,int x,int y,int ch); void i_img_exorcise(i_img *im); void i_img_destroy(i_img *im); void i_img_info(i_img *im,int *info); extern i_img *i_sametype(i_img *im, int xsize, int ysize); extern i_img *i_sametype_chans(i_img *im, int xsize, int ysize, int channels); i_img *i_img_pal_new(int x, int y, int ch, int maxpal); /* Image feature settings */ void i_img_setmask (i_img *im,int ch_mask); int i_img_getmask (i_img *im); int i_img_getchannels(i_img *im); /* Base functions */ #if 0 int i_ppix(i_img *im,int x,int y,i_color *val); int i_gpix(i_img *im,int x,int y,i_color *val); int i_ppixf(i_img *im,int x,int y,i_color *val); int i_gpixf(i_img *im,int x,int y,i_color *val); #endif #define i_ppix(im, x, y, val) (((im)->i_f_ppix)((im), (x), (y), (val))) #define i_gpix(im, x, y, val) (((im)->i_f_gpix)((im), (x), (y), (val))) #define i_ppixf(im, x, y, val) (((im)->i_f_ppixf)((im), (x), (y), (val))) #define i_gpixf(im, x, y, val) (((im)->i_f_gpixf)((im), (x), (y), (val))) #if 0 int i_ppix_d(i_img *im,int x,int y,i_color *val); int i_gpix_d(i_img *im,int x,int y,i_color *val); int i_plin_d(i_img *im,int l, int r, int y, i_color *val); int i_glin_d(i_img *im,int l, int r, int y, i_color *val); #endif #define i_plin(im, l, r, y, val) (((im)->i_f_plin)(im, l, r, y, val)) #define i_glin(im, l, r, y, val) (((im)->i_f_glin)(im, l, r, y, val)) #define i_plinf(im, l, r, y, val) (((im)->i_f_plinf)(im, l, r, y, val)) #define i_glinf(im, l, r, y, val) (((im)->i_f_glinf)(im, l, r, y, val)) #define i_gsamp(im, l, r, y, samps, chans, count) \ (((im)->i_f_gsamp)((im), (l), (r), (y), (samps), (chans), (count))) #define i_gsampf(im, l, r, y, samps, chans, count) \ (((im)->i_f_gsampf)((im), (l), (r), (y), (samps), (chans), (count))) #define i_psamp(im, l, r, y, samps, chans, count) \ (((im)->i_f_gsamp)((im), (l), (r), (y), (samps), (chans), (count))) #define i_psampf(im, l, r, y, samps, chans, count) \ (((im)->i_f_gsampf)((im), (l), (r), (y), (samps), (chans), (count))) #define i_findcolor(im, color, entry) \ (((im)->i_f_findcolor) ? ((im)->i_f_findcolor)((im), (color), (entry)) : 0) #define i_gpal(im, l, r, y, vals) \ (((im)->i_f_gpal) ? ((im)->i_f_gpal)((im), (l), (r), (y), (vals)) : 0) #define i_ppal(im, l, r, y, vals) \ (((im)->i_f_ppal) ? ((im)->i_f_ppal)((im), (l), (r), (y), (vals)) : 0) #define i_addcolors(im, colors, count) \ (((im)->i_f_addcolors) ? ((im)->i_f_addcolors)((im), (colors), (count)) : -1) #define i_getcolors(im, index, color, count) \ (((im)->i_f_getcolors) ? \ ((im)->i_f_getcolors)((im), (index), (color), (count)) : 0) #define i_setcolors(im, index, color, count) \ (((im)->i_f_setcolors) ? \ ((im)->i_f_setcolors)((im), (index), (color), (count)) : 0) #define i_colorcount(im) \ (((im)->i_f_colorcount) ? ((im)->i_f_colorcount)(im) : -1) #define i_maxcolors(im) \ (((im)->i_f_maxcolors) ? ((im)->i_f_maxcolors)(im) : -1) #define i_findcolor(im, color, entry) \ (((im)->i_f_findcolor) ? ((im)->i_f_findcolor)((im), (color), (entry)) : 0) #define i_img_virtual(im) ((im)->virtual) #define i_img_type(im) ((im)->type) #define i_img_bits(im) ((im)->bits) /* Generic fills */ struct i_fill_tag; typedef void (*i_fill_with_color_f) (struct i_fill_tag *fill, int x, int y, int width, int channels, i_color *data); typedef void (*i_fill_with_fcolor_f) (struct i_fill_tag *fill, int x, int y, int width, int channels, i_fcolor *data); typedef void (*i_fill_destroy_f)(struct i_fill_tag *fill); typedef void (*i_fill_combine_f)(i_color *out, i_color *in, int channels, int count); typedef void (*i_fill_combinef_f)(i_fcolor *out, i_fcolor *in, int channels, int count); typedef struct i_fill_tag { /* called for 8-bit/sample image (and maybe lower) */ /* this may be NULL, if so call fill_with_fcolor */ i_fill_with_color_f fill_with_color; /* called for other sample sizes */ /* this must be non-NULL */ i_fill_with_fcolor_f fill_with_fcolor; /* called if non-NULL to release any extra resources */ i_fill_destroy_f destroy; /* if non-zero the caller will fill data with the original data from the image */ i_fill_combine_f combine; i_fill_combinef_f combinef; } i_fill_t; typedef enum { ic_none, ic_normal, ic_multiply, ic_dissolve, ic_add, ic_subtract, ic_diff, ic_lighten, ic_darken, ic_hue, ic_sat, ic_value, ic_color } i_combine_t; extern i_fill_t *i_new_fill_solidf(i_fcolor *c, int combine); extern i_fill_t *i_new_fill_solid(i_color *c, int combine); extern i_fill_t * i_new_fill_hatch(i_color *fg, i_color *bg, int combine, int hatch, unsigned char *cust_hatch, int dx, int dy); extern i_fill_t * i_new_fill_hatchf(i_fcolor *fg, i_fcolor *bg, int combine, int hatch, unsigned char *cust_hatch, int dx, int dy); extern i_fill_t * i_new_fill_image(i_img *im, double *matrix, int xoff, int yoff, int combine); extern void i_fill_destroy(i_fill_t *fill); float i_gpix_pch(i_img *im,int x,int y,int ch); /* functions for drawing primitives */ void i_box (i_img *im,int x1,int y1,int x2,int y2,i_color *val); void i_box_filled (i_img *im,int x1,int y1,int x2,int y2,i_color *val); void i_box_cfill(i_img *im, int x1, int y1, int x2, int y2, i_fill_t *fill); void i_line (i_img *im,int x1,int y1,int x2,int y2,i_color *val, int endp); void i_line_aa (i_img *im,int x1,int y1,int x2,int y2,i_color *val, int endp); void i_arc (i_img *im,int x,int y,float rad,float d1,float d2,i_color *val); void i_arc_cfill(i_img *im,int x,int y,float rad,float d1,float d2,i_fill_t *fill); void i_circle_aa (i_img *im,float x, float y,float rad,i_color *val); void i_copyto (i_img *im,i_img *src,int x1,int y1,int x2,int y2,int tx,int ty); void i_copyto_trans(i_img *im,i_img *src,int x1,int y1,int x2,int y2,int tx,int ty,i_color *trans); void i_copy (i_img *im,i_img *src); int i_rubthru (i_img *im, i_img *src, int tx, int ty, int src_minx, int src_miny, int src_maxx, int src_maxy); undef_int i_flipxy (i_img *im, int direction); extern i_img *i_rotate90(i_img *im, int degrees); extern i_img *i_rotate_exact(i_img *im, double amount); extern i_img *i_matrix_transform(i_img *im, int xsize, int ysize, double *matrix); void i_bezier_multi(i_img *im,int l,double *x,double *y,i_color *val); void i_poly_aa (i_img *im,int l,double *x,double *y,i_color *val); void i_poly_aa_cfill(i_img *im,int l,double *x,double *y,i_fill_t *fill); undef_int i_flood_fill (i_img *im,int seedx,int seedy,i_color *dcol); undef_int i_flood_cfill(i_img *im, int seedx, int seedy, i_fill_t *fill); /* image processing functions */ void i_gaussian (i_img *im,float stdev); void i_conv (i_img *im,float *coeff,int len); void i_unsharp_mask(i_img *im, double stddev, double scale); /* colour manipulation */ extern int i_convert(i_img *im, i_img *src, float *coeff, int outchan, int inchan); extern void i_map(i_img *im, unsigned char (*maps)[256], unsigned int mask); float i_img_diff (i_img *im1,i_img *im2); /* font routines */ undef_int i_init_fonts( int t1log ); #ifdef HAVE_LIBT1 #include undef_int i_init_t1( int t1log ); int i_t1_new( char *pfb, char *afm ); int i_t1_destroy( int font_id ); undef_int i_t1_cp( i_img *im, int xb, int yb, int channel, int fontnum, float points, char* str, int len, int align, int utf8, char const *flags ); undef_int i_t1_text( i_img *im, int xb, int yb, i_color *cl, int fontnum, float points, char* str, int len, int align, int utf8, char const *flags ); int i_t1_bbox( int fontnum, float point, char *str, int len, int cords[6], int utf8, char const *flags ); void i_t1_set_aa( int st ); void close_t1( void ); int i_t1_has_chars(int font_num, char const *text, int len, int utf8, char *out); extern int i_t1_face_name(int font_num, char *name_buf, size_t name_buf_size); extern int i_t1_glyph_name(int font_num, unsigned long ch, char *name_buf, size_t name_buf_size); #endif #ifdef HAVE_LIBTT struct TT_Fonthandle_; typedef struct TT_Fonthandle_ TT_Fonthandle; undef_int i_init_tt( void ); TT_Fonthandle* i_tt_new(char *fontname); void i_tt_destroy( TT_Fonthandle *handle ); undef_int i_tt_cp( TT_Fonthandle *handle,i_img *im,int xb,int yb,int channel,float points,char const* txt,int len,int smooth, int utf8); undef_int i_tt_text( TT_Fonthandle *handle, i_img *im, int xb, int yb, i_color *cl, float points, char const* txt, int len, int smooth, int utf8); undef_int i_tt_bbox( TT_Fonthandle *handle, float points,char *txt,int len,int cords[6], int utf8); int i_tt_has_chars(TT_Fonthandle *handle, char const *text, int len, int utf8, char *out); void i_tt_dump_names(TT_Fonthandle *handle); int i_tt_face_name(TT_Fonthandle *handle, char *name_buf, size_t name_buf_size); int i_tt_glyph_name(TT_Fonthandle *handle, unsigned long ch, char *name_buf, size_t name_buf_size); #endif /* End of freetype headers */ #ifdef HAVE_FT2 typedef struct FT2_Fonthandle FT2_Fonthandle; extern int i_ft2_init(void); extern FT2_Fonthandle * i_ft2_new(char *name, int index); extern void i_ft2_destroy(FT2_Fonthandle *handle); extern int i_ft2_setdpi(FT2_Fonthandle *handle, int xdpi, int ydpi); extern int i_ft2_getdpi(FT2_Fonthandle *handle, int *xdpi, int *ydpi); extern int i_ft2_settransform(FT2_Fonthandle *handle, double *matrix); extern int i_ft2_sethinting(FT2_Fonthandle *handle, int hinting); extern int i_ft2_bbox(FT2_Fonthandle *handle, double cheight, double cwidth, char const *text, int len, int *bbox, int utf8); extern int i_ft2_text(FT2_Fonthandle *handle, i_img *im, int tx, int ty, i_color *cl, double cheight, double cwidth, char const *text, int len, int align, int aa, int vlayout, int utf8); extern int i_ft2_cp(FT2_Fonthandle *handle, i_img *im, int tx, int ty, int channel, double cheight, double cwidth, char const *text, int len, int align, int aa, int vlayout, int utf8); extern int i_ft2_has_chars(FT2_Fonthandle *handle, char const *text, int len, int utf8, char *work); extern int i_ft2_face_name(FT2_Fonthandle *handle, char *name_buf, size_t name_buf_size); extern int i_ft2_glyph_name(FT2_Fonthandle *handle, unsigned char ch, char *name_buf, size_t name_buf_size); extern int i_ft2_can_do_glyph_names(void); extern int i_ft2_face_has_glyph_names(FT2_Fonthandle *handle); #endif #ifdef WIN32 extern int i_wf_bbox(char *face, int size, char *text, int length, int *bbox); extern int i_wf_text(char *face, i_img *im, int tx, int ty, i_color *cl, int size, char *text, int len, int align, int aa); extern int i_wf_cp(char *face, i_img *im, int tx, int ty, int channel, int size, char *text, int len, int align, int aa); #endif /* functions for reading and writing formats */ /* general reader callback userdata - data the user passed into the reader buffer - the buffer to fill with data need - the amount of data needed want - the amount of space we have to store data fill buffer and return the number of bytes read, 0 for eof, -1 for error */ typedef int (*i_read_callback_t)(char *userdata, char *buffer, int need, int want); /* i_gen_reader() translates the low-level requests from whatever library into buffered requests. but the called function can always bypass buffering by only ever reading I bytes. */ #define CBBUFSIZ 4096 typedef struct { i_read_callback_t cb; char *userdata; char buffer[CBBUFSIZ]; int length; int cpos; } i_gen_read_data; extern int i_gen_reader(i_gen_read_data *info, char *buffer, int need); extern i_gen_read_data *i_gen_read_data_new(i_read_callback_t cb, char *userdata); extern void i_free_gen_read_data(i_gen_read_data *); /* general writer callback userdata - the data the user passed into the writer data - the data to write data_size - the number of bytes to write write the data, return non-zero on success, zero on failure. */ typedef int (*i_write_callback_t)(char *userdata, char const *data, int size); typedef struct { i_write_callback_t cb; char *userdata; char buffer[CBBUFSIZ]; int maxlength; int filledto; } i_gen_write_data; extern int i_gen_writer(i_gen_write_data *info, char const *data, int size); extern i_gen_write_data *i_gen_write_data_new(i_write_callback_t cb, char *userdata, int maxlength); extern int i_free_gen_write_data(i_gen_write_data *, int flush); /* transparency handling for quantized output */ typedef enum i_transp_tag { tr_none, /* ignore any alpha channel */ tr_threshold, /* threshold the transparency - uses tr_threshold */ tr_errdiff, /* error diffusion */ tr_ordered /* an ordered dither */ } i_transp; /* controls how we build the colour map */ typedef enum i_make_colors_tag { mc_none, /* user supplied colour map only */ mc_web_map, /* Use the 216 colour web colour map */ mc_addi, /* Addi's algorithm */ mc_median_cut, /* median cut - similar to giflib, hopefully */ mc_mask = 0xFF /* (mask for generator) */ } i_make_colors; /* controls how we translate the colours */ typedef enum i_translate_tag { pt_giflib, /* get gif lib to do it (ignores make_colours) */ pt_closest, /* just use the closest match within the hashbox */ pt_perturb, /* randomly perturb the data - uses perturb_size*/ pt_errdiff /* error diffusion dither - uses errdiff */ } i_translate; /* Which error diffusion map to use */ typedef enum i_errdiff_tag { ed_floyd, /* floyd-steinberg */ ed_jarvis, /* Jarvis, Judice and Ninke */ ed_stucki, /* Stucki */ ed_custom, /* the map found in ed_map|width|height|orig */ ed_mask = 0xFF, /* mask to get the map */ ed_bidir = 0x100 /* change direction for each row */ } i_errdiff; /* which ordered dither map to use currently only available for transparency I don't know of a way to do ordered dither of an image against some general palette */ typedef enum i_ord_dith_tag { od_random, /* sort of random */ od_dot8, /* large dot */ od_dot4, od_hline, od_vline, od_slashline, /* / line dither */ od_backline, /* \ line dither */ od_tiny, /* small checkerbox */ od_custom /* custom 8x8 map */ } i_ord_dith; typedef struct i_gif_pos_tag { int x, y; } i_gif_pos; /* passed into i_writegif_gen() to control quantization */ typedef struct i_quantize_tag { /* how to handle transparency */ i_transp transp; /* the threshold at which to make pixels opaque */ int tr_threshold; i_errdiff tr_errdiff; i_ord_dith tr_orddith; unsigned char tr_custom[64]; /* how to make the colour map */ i_make_colors make_colors; /* any existing colours mc_existing is an existing colour table mc_count is the number of existing colours mc_size is the total size of the array that mc_existing points at - this must be at least 256 */ i_color *mc_colors; int mc_size; int mc_count; /* how we translate the colours */ i_translate translate; /* the error diffusion map to use if translate is mc_errdiff */ i_errdiff errdiff; /* the following define the error diffusion values to use if errdiff is ed_custom. ed_orig is the column on the top row that represents the current */ int *ed_map; int ed_width, ed_height, ed_orig; /* the amount of perturbation to use for translate is mc_perturb */ int perturb; } i_quantize; typedef struct i_gif_opts { /* each image has a local color map */ int each_palette; /* images are interlaced */ int interlace; /* time for which image is displayed (in 1/100 seconds) default: 0 */ int delay_count; int *delays; /* user input flags default: 0 */ int user_input_count; char *user_input_flags; /* disposal default: 0 */ int disposal_count; char *disposal; /* this is added to the color table when we make an image transparent */ i_color tran_color; /* image positions */ int position_count; i_gif_pos *positions; /* Netscape loop extension - number of loops */ int loop_count; /* should be eliminate unused colors? */ int eliminate_unused; } i_gif_opts; extern void quant_makemap(i_quantize *quant, i_img **imgs, int count); extern i_palidx *quant_translate(i_quantize *quant, i_img *img); extern void quant_transparent(i_quantize *quant, i_palidx *indices, i_img *img, i_palidx trans_index); extern i_img *i_img_pal_new(int x, int y, int channels, int maxpal); extern i_img *i_img_pal_new_low(i_img *im, int x, int y, int channels, int maxpal); extern i_img *i_img_to_pal(i_img *src, i_quantize *quant); extern i_img *i_img_to_rgb(i_img *src); extern i_img *i_img_masked_new(i_img *targ, i_img *mask, int x, int y, int w, int h); extern i_img *i_img_16_new(int x, int y, int ch); extern i_img *i_img_16_new_low(i_img *im, int x, int y, int ch); extern i_img *i_img_double_new(int x, int y, int ch); extern i_img *i_img_double_new_low(i_img *im, int x, int y, int ch); char * i_test_format_probe(io_glue *data, int length); #ifdef HAVE_LIBJPEG i_img * i_readjpeg_wiol(io_glue *ig, int length, char** iptc_itext, int *itlength); undef_int i_writejpeg_wiol(i_img *im, io_glue *ig, int qfactor); #endif /* HAVE_LIBJPEG */ #ifdef HAVE_LIBTIFF i_img * i_readtiff_wiol(io_glue *ig, int length); i_img ** i_readtiff_multi_wiol(io_glue *ig, int length, int *count); undef_int i_writetiff_wiol(i_img *im, io_glue *ig); undef_int i_writetiff_multi_wiol(io_glue *ig, i_img **imgs, int count); undef_int i_writetiff_wiol_faxable(i_img *im, io_glue *ig, int fine); undef_int i_writetiff_multi_wiol_faxable(io_glue *ig, i_img **imgs, int count, int fine); #endif /* HAVE_LIBTIFF */ #ifdef HAVE_LIBPNG i_img *i_readpng_wiol(io_glue *ig, int length); undef_int i_writepng_wiol(i_img *im, io_glue *ig); #endif /* HAVE_LIBPNG */ #ifdef HAVE_LIBGIF i_img *i_readgif(int fd, int **colour_table, int *colours); i_img *i_readgif_wiol(io_glue *ig, int **colour_table, int *colours); i_img *i_readgif_scalar(char *data, int length, int **colour_table, int *colours); i_img *i_readgif_callback(i_read_callback_t callback, char *userdata, int **colour_table, int *colours); extern i_img **i_readgif_multi(int fd, int *count); extern i_img **i_readgif_multi_scalar(char *data, int length, int *count); extern i_img **i_readgif_multi_callback(i_read_callback_t callback, char *userdata, int *count); extern i_img **i_readgif_multi_wiol(io_glue *ig, int *count); undef_int i_writegif(i_img *im,int fd,int colors,int pixdev,int fixedlen,i_color fixed[]); undef_int i_writegifmc(i_img *im,int fd,int colors); undef_int i_writegifex(i_img *im,int fd); undef_int i_writegif_gen(i_quantize *quant, int fd, i_img **imgs, int count); undef_int i_writegif_callback(i_quantize *quant, i_write_callback_t cb, char *userdata, int maxbuffer, i_img **imgs, int count); undef_int i_writegif_wiol(io_glue *ig, i_quantize *quant, i_img **imgs, int count); void i_qdist(i_img *im); #endif /* HAVE_LIBGIF */ i_img * i_readraw_wiol(io_glue *ig, int x, int y, int datachannels, int storechannels, int intrl); undef_int i_writeraw_wiol(i_img* im, io_glue *ig); i_img * i_readpnm_wiol(io_glue *ig, int length); undef_int i_writeppm_wiol(i_img *im, io_glue *ig); extern int i_writebmp_wiol(i_img *im, io_glue *ig); extern i_img *i_readbmp_wiol(io_glue *ig); int tga_header_verify(unsigned char headbuf[18]); i_img * i_readtga_wiol(io_glue *ig, int length); undef_int i_writetga_wiol(i_img *img, io_glue *ig, int wierdpack, int compress, char *idstring, size_t idlen); i_img * i_readrgb_wiol(io_glue *ig, int length); undef_int i_writergb_wiol(i_img *img, io_glue *ig, int wierdpack, int compress, char *idstring, size_t idlen); i_img * i_scaleaxis(i_img *im, float Value, int Axis); i_img * i_scale_nn(i_img *im, float scx, float scy); i_img * i_haar(i_img *im); int i_count_colors(i_img *im,int maxc); i_img * i_transform(i_img *im, int *opx,int opxl,int *opy,int opyl,double parm[],int parmlen); struct rm_op; i_img * i_transform2(int width, int height, int channels, struct rm_op *ops, int ops_count, double *n_regs, int n_regs_count, i_color *c_regs, int c_regs_count, i_img **in_imgs, int in_imgs_count); /* filters */ void i_contrast(i_img *im, float intensity); void i_hardinvert(i_img *im); void i_noise(i_img *im, float amount, unsigned char type); void i_bumpmap(i_img *im,i_img *bump,int channel,int light_x,int light_y,int strength); void i_bumpmap_complex(i_img *im, i_img *bump, int channel, int tx, int ty, float Lx, float Ly, float Lz, float cd, float cs, float n, i_color *Ia, i_color *Il, i_color *Is); void i_postlevels(i_img *im,int levels); void i_mosaic(i_img *im,int size); void i_watermark(i_img *im,i_img *wmark,int tx,int ty,int pixdiff); void i_autolevels(i_img *im,float lsat,float usat,float skew); void i_radnoise(i_img *im,int xo,int yo,float rscale,float ascale); void i_turbnoise(i_img *im,float xo,float yo,float scale); void i_gradgen(i_img *im, int num, int *xo, int *yo, i_color *ival, int dmeasure); void i_nearest_color(i_img *im, int num, int *xo, int *yo, i_color *ival, int dmeasure); i_img *i_diff_image(i_img *im, i_img *im2, int mindist); typedef enum { i_fst_linear, i_fst_curved, i_fst_sine, i_fst_sphere_up, i_fst_sphere_down, i_fst_end } i_fountain_seg_type; typedef enum { i_fc_direct, i_fc_hue_up, i_fc_hue_down, i_fc_end } i_fountain_color; typedef struct { double start, middle, end; i_fcolor c[2]; i_fountain_seg_type type; i_fountain_color color; } i_fountain_seg; typedef enum { i_fr_none, i_fr_sawtooth, i_fr_triangle, i_fr_saw_both, i_fr_tri_both } i_fountain_repeat; typedef enum { i_ft_linear, i_ft_bilinear, i_ft_radial, i_ft_radial_square, i_ft_revolution, i_ft_conical, i_ft_end } i_fountain_type; typedef enum { i_fts_none, i_fts_grid, i_fts_random, i_fts_circle } i_ft_supersample; void i_fountain(i_img *im, double xa, double ya, double xb, double yb, i_fountain_type type, i_fountain_repeat repeat, int combine, int super_sample, double ssample_param, int count, i_fountain_seg *segs); extern i_fill_t * i_new_fill_fount(double xa, double ya, double xb, double yb, i_fountain_type type, i_fountain_repeat repeat, int combine, int super_sample, double ssample_param, int count, i_fountain_seg *segs); /* Debug only functions */ void malloc_state( void ); /* this is sort of obsolete now */ typedef struct { undef_int (*i_has_format)(char *frmt); i_color*(*ICL_set)(i_color *cl,unsigned char r,unsigned char g,unsigned char b,unsigned char a); void (*ICL_info)(i_color *cl); i_img*(*i_img_new)( void ); i_img*(*i_img_empty)(i_img *im,int x,int y); i_img*(*i_img_empty_ch)(i_img *im,int x,int y,int ch); void(*i_img_exorcise)(i_img *im); void(*i_img_info)(i_img *im,int *info); void(*i_img_setmask)(i_img *im,int ch_mask); int (*i_img_getmask)(i_img *im); /* int (*i_ppix)(i_img *im,int x,int y,i_color *val); int (*i_gpix)(i_img *im,int x,int y,i_color *val); */ void(*i_box)(i_img *im,int x1,int y1,int x2,int y2,i_color *val); void(*i_line)(i_img *im,int x1,int y1,int x2,int y2,i_color *val,int endp); void(*i_arc)(i_img *im,int x,int y,float rad,float d1,float d2,i_color *val); void(*i_copyto)(i_img *im,i_img *src,int x1,int y1,int x2,int y2,int tx,int ty); void(*i_copyto_trans)(i_img *im,i_img *src,int x1,int y1,int x2,int y2,int tx,int ty,i_color *trans); int(*i_rubthru)(i_img *im,i_img *src,int tx,int ty); } symbol_table_t; /* error handling see error.c for documentation the error information is currently global */ typedef struct { char *msg; int code; } i_errmsg; typedef void (*i_error_cb)(int code, char const *msg); typedef void (*i_failed_cb)(i_errmsg *msgs); extern i_error_cb i_set_error_cb(i_error_cb); extern i_failed_cb i_set_failed_cb(i_failed_cb); extern void i_set_argv0(char const *); extern int i_set_errors_fatal(int new_fatal); extern i_errmsg *i_errors(void); extern void i_push_error(int code, char const *msg); extern void i_push_errorf(int code, char const *fmt, ...); extern void i_push_errorvf(int code, char const *fmt, va_list); extern void i_clear_error(void); extern int i_failed(int code, char const *msg); /* image tag processing */ extern void i_tags_new(i_img_tags *tags); extern int i_tags_addn(i_img_tags *tags, char const *name, int code, int idata); extern int i_tags_add(i_img_tags *tags, char const *name, int code, char const *data, int size, int idata); extern void i_tags_destroy(i_img_tags *tags); extern int i_tags_find(i_img_tags *tags, char const *name, int start, int *entry); extern int i_tags_findn(i_img_tags *tags, int code, int start, int *entry); extern int i_tags_delete(i_img_tags *tags, int entry); extern int i_tags_delbyname(i_img_tags *tags, char const *name); extern int i_tags_delbycode(i_img_tags *tags, int code); extern int i_tags_get_float(i_img_tags *tags, char const *name, int code, double *value); extern int i_tags_set_float(i_img_tags *tags, char const *name, int code, double value); extern int i_tags_get_int(i_img_tags *tags, char const *name, int code, int *value); extern int i_tags_get_string(i_img_tags *tags, char const *name, int code, char *value, size_t value_size); extern int i_tags_get_color(i_img_tags *tags, char const *name, int code, i_color *value); extern int i_tags_set_color(i_img_tags *tags, char const *name, int code, i_color const *value); extern void i_tags_print(i_img_tags *tags); #endif