Manual Pages for UNIX Operating System command usage for man libpngpf

C Library Functions                                   libpngpf(3)



NAME
     libpng - Portable Network Graphics (PNG)  Reference  Library
     1.0.12 (private functions)

SYNOPSIS
     #include 

     cc [ flag ...] -I/usr/sfw/include file [  library  ...  ]  -
     L/usr/sfw/lib -R/usr/sfw/lib -lpng

     void png_build_gamma_table (png_structp png_ptr);

     void png_build_grayscale_palette (int bit_depth,  png_colorp
     palette);

     void png_calculate_crc (png_structp png_ptr, png_bytep  ptr,
     png_size_t length);

     void png_check_chunk_name  (png_structp  png_ptr,  png_bytep
     chunk_name);

     png_size_t png_check_keyword (png_structp png_ptr, png_charp
     key, png_charpp new_key);

     void png_combine_row (png_structp  png_ptr,  png_bytep  row,
     int mask);

     void png_correct_palette  (png_structp  png_ptr,  png_colorp
     palette, int num_palette);

     int png_crc_error (png_structp png_ptr);

     int png_crc_finish (png_structp png_ptr, png_uint_32 skip);

     void  png_crc_read  (png_structp  png_ptr,  png_bytep   buf,
     png_size_t length);

     png_voidp  png_create_struct   (int   type,   png_malloc_ptr
     malloc_fn);

     png_voidp png_create_struct_2 (int type);

     png_charp  png_decompress_chunk  (png_structp  png_ptr,  int
     comp_type,   png_charp  chunkdata,  png_size_t  chunklength,
     png_size_t prefix_length, png_size_t *data_length);

     void png_destroy_struct (png_voidp struct_ptr);

     void     png_destroy_struct_2     (png_voidp     struct_ptr,
     png_free_ptr free_fn);

     void png_do_background  (png_row_infop  row_info,  png_bytep



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C Library Functions                                   libpngpf(3)



     row,  png_color_16p  trans_values, png_color_16p background,
     png_color_16p background_1, png_bytep gamma_table, png_bytep
     gamma_from_1,  png_bytep gamma_to_1, png_uint_16pp gamma_16,
     png_uint_16pp gamma_16_from_1, png_uint_16pp  gamma_16_to_1,
     int gamma_shift);

     void png_do_bgr (png_row_infop row_info, png_bytep row);

     void png_do_chop (png_row_infop row_info, png_bytep row);

     void png_do_dither (png_row_infop row_info,  png_bytep  row,
     png_bytep palette_lookup, png_bytep dither_lookup);

     void png_do_expand (png_row_infop row_info,  png_bytep  row,

     png_color_16p trans_value);

     void    png_do_expand_palette    (png_row_infop    row_info,
     png_bytep  row,  png_colorp  palette,  png_bytep  trans, int
     num_trans);

     void png_do_gamma (png_row_infop  row_info,  png_bytep  row,
     png_bytep  gamma_table,  png_uint_16pp  gamma_16_table,  int
     gamma_shift);

     void png_do_gray_to_rgb (png_row_infop  row_info,  png_bytep
     row);

     void png_do_invert (png_row_infop row_info, png_bytep row);

     void png_do_pack  (png_row_infop  row_info,  png_bytep  row,
     png_uint_32 bit_depth);

     void  png_do_packswap  (png_row_infop  row_info,   png_bytep
     row);

     void png_do_read_filler (png_row_infop  row_info,  png_bytep
     row, png_uint_32 filler, png_uint_32 flags);

     void    png_do_read_interlace    (png_row_infop    row_info,
     png_bytep row, int pass, png_uint_32 transformations);

     void   png_do_read_invert_alpha   (png_row_infop   row_info,
     png_bytep row);

     void   png_do_read_swap_alpha    (png_row_infop    row_info,
     png_bytep row);

     void png_do_read_transformations (png_structp png_ptr);

     int png_do_rgb_to_gray  (png_row_infop  row_info,  png_bytep
     row);



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C Library Functions                                   libpngpf(3)



     void png_do_shift (png_row_infop  row_info,  png_bytep  row,
     png_color_8p bit_depth);

     void png_do_strip_filler (png_row_infop row_info,  png_bytep
     row, png_uint_32 flags);

     void png_do_swap (png_row_infop row_info, png_bytep row);

     void png_do_unpack (png_row_infop row_info, png_bytep row);

     void png_do_unshift (png_row_infop row_info, png_bytep  row,
     png_color_8p sig_bits);

     void   png_do_write_interlace    (png_row_infop    row_info,
     png_bytep row, int pass);

     void  png_do_write_invert_alpha   (png_row_infop   row_info,
     png_bytep row);

     void   png_do_write_swap_alpha   (png_row_infop    row_info,
     png_bytep row);

     void png_do_write_transformations (png_structp png_ptr);

     void *png_far_to_near  (png_structp  png_ptr,png_voidp  ptr,
     int check);

     void png_flush (png_structp png_ptr);

     png_int_32 png_get_int_32 (png_bytep buf);

     png_uint_16 png_get_uint_16 (png_bytep buf);

     png_uint_32 png_get_uint_32 (png_bytep buf);

     int png_handle_as_unknown  (png_structp  png_ptr,  png_bytep
     chunk_name);

     void   png_handle_bKGD   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_cHRM   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_gAMA   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_hIST   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_IEND   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);



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C Library Functions                                   libpngpf(3)



     void   png_handle_IHDR   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_iCCP   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_iTXt   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_oFFs   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_pCAL   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_pHYs   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_PLTE   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_sBIT   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_sCAL   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_sPLT   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_sRGB   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_tEXt   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_tIME   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_tRNS   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void  png_handle_unknown  (png_structp  png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void   png_handle_zTXt   (png_structp   png_ptr,   png_infop
     info_ptr, png_uint_32 length);

     void  png_info_destroy   (png_structp   png_ptr,   png_infop
     info_ptr);

     void png_init_read_transformations (png_structp png_ptr);



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C Library Functions                                   libpngpf(3)



     void png_process_IDAT_data (png_structp  png_ptr,  png_bytep
     buffer, png_size_t buffer_length);

     void png_process_some_data (png_structp  png_ptr,  png_infop
     info_ptr);

     void png_push_check_crc (png_structp png_ptr);

     void png_push_crc_finish (png_structp png_ptr);

     void  png_push_crc_skip  (png_structp  png_ptr,  png_uint_32
     length);

     void png_push_fill_buffer  (png_structp  png_ptr,  png_bytep
     buffer, png_size_t length);

     void png_push_handle_tEXt  (png_structp  png_ptr,  png_infop
     info_ptr, png_uint_32 length);

     void png_push_handle_unknown (png_structp png_ptr, png_infop
     info_ptr, png_uint_32 length);

     void png_push_handle_zTXt  (png_structp  png_ptr,  png_infop
     info_ptr, png_uint_32 length);

     void  png_push_have_end  (png_structp   png_ptr,   png_infop
     info_ptr);

     void  png_push_have_info  (png_structp  png_ptr,   png_infop
     info_ptr);

     void png_push_have_row (png_structp png_ptr, png_bytep row);

     void png_push_process_row (png_structp png_ptr);

     void  png_push_read_chunk  (png_structp  png_ptr,  png_infop
     info_ptr);

     void  png_push_read_end  (png_structp   png_ptr,   png_infop
     info_ptr);

     void png_push_read_IDAT (png_structp png_ptr);

     void  png_push_read_sig  (png_structp   png_ptr,   png_infop
     info_ptr);

     void  png_push_read_tEXt  (png_structp  png_ptr,   png_infop
     info_ptr);

     void  png_push_read_zTXt  (png_structp  png_ptr,   png_infop
     info_ptr);




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C Library Functions                                   libpngpf(3)



     void png_push_restore_buffer (png_structp png_ptr, png_bytep
     buffer, png_size_t buffer_length);

     void png_push_save_buffer (png_structp png_ptr);

     void png_read_data  (png_structp  png_ptr,  png_bytep  data,
     png_size_t length);

     void png_read_filter_row (png_structp png_ptr, png_row_infop
     row_info, png_bytep row, png_bytep prev_row, int filter);

     void png_read_finish_row (png_structp png_ptr);

     void png_read_push_finish_row (png_structp png_ptr);

     void png_read_start_row (png_structp png_ptr);

     void png_read_transform_info (png_structp png_ptr, png_infop
     info_ptr);

     void png_reset_crc (png_structp png_ptr);

     void png_save_int_32 (png_bytep buf, png_int_32 i);

     void png_save_uint_16 (png_bytep buf, unsigned int i);

     void png_save_uint_32 (png_bytep buf, png_uint_32 i);

     void  png_write_bKGD  (png_structp  png_ptr,   png_color_16p
     values, int color_type);

     void png_write_cHRM (png_structp  png_ptr,  double  white_x,
     double  white_y, double red_x, double red_y, double green_x,
     double green_y, double blue_x, double blue_y);

     void png_write_cHRM_fixed (png_structp png_ptr,  png_uint_32
     white_x, png_uint_32 white_y, png_uint_32 red_x, png_uint_32
     red_y, png_uint_32 green_x, png_uint_32 green_y, png_uint_32
     blue_x, png_uint_32 blue_y);

     void png_write_data (png_structp  png_ptr,  png_bytep  data,
     png_size_t length);

     void png_write_filtered_row (png_structp png_ptr,  png_bytep
     filtered_row);

     void     png_write_find_filter     (png_structp     png_ptr,
     png_row_infop row_info);

     void png_write_finish_row (png_structp png_ptr);

     void    png_write_gAMA    (png_structp    png_ptr,    double



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C Library Functions                                   libpngpf(3)



     file_gamma);

     void png_write_gAMA_fixed (png_structp png_ptr,  png_uint_32
     int_file_gamma);

     void png_write_hIST (png_structp png_ptr, png_uint_16p hist,
     int num_hist);

     void png_write_iCCP (png_structp  png_ptr,  png_charp  name,
     int compression_type, png_charp profile, int proflen);

     void png_write_IDAT (png_structp  png_ptr,  png_bytep  data,
     png_size_t length);

     void png_write_IEND (png_structp png_ptr);

     void png_write_IHDR (png_structp png_ptr, png_uint_32 width,
     png_uint_32  height,  int  bit_depth,  int  color_type,  int
     compression_type, int filter_type, int interlace_type);

     void png_write_iTXt (png_structp png_ptr,  int  compression,
     png_charp  key,  png_charp  lang,  png_charp translated_key,
     png_charp text));

     void  png_write_oFFs   (png_structp   png_ptr,   png_uint_32
     x_offset, png_uint_32 y_offset, int unit_type);

     void png_write_pCAL (png_structp png_ptr, png_charp purpose,
     png_int_32   X0,  png_int_32  X1,  int  type,  int  nparams,
     png_charp units, png_charpp params);

     void  png_write_pHYs   (png_structp   png_ptr,   png_uint_32
     x_pixels_per_unit,    png_uint_32   y_pixels_per_unit,   int
     unit_type);

     void   png_write_PLTE   (png_structp   png_ptr,   png_colorp
     palette, png_uint_32 num_pal);

     void png_write_sBIT (png_structp png_ptr, png_color_8p sbit,
     int color_type);

     void png_write_sCAL (png_structp  png_ptr,  png_charp  unit,
     double width, double height);

     void png_write_sCAL_s (png_structp png_ptr, png_charp  unit,
     png_charp width, png_charp height);

     void png_write_sig (png_structp png_ptr);

     void png_write_sRGB (png_structp png_ptr, int intent);

     void  png_write_sPLT  (png_structp  png_ptr,  png_spalette_p



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C Library Functions                                   libpngpf(3)



     palette);

     void png_write_start_row (png_structp png_ptr);

     void png_write_tEXt  (png_structp  png_ptr,  png_charp  key,
     png_charp text, png_size_t text_len);

     void   png_write_tIME   (png_structp   png_ptr,    png_timep
     mod_time);

     void png_write_tRNS (png_structp png_ptr,  png_bytep  trans,
     png_color_16p values, int number, int color_type);

     void png_write_zTXt  (png_structp  png_ptr,  png_charp  key,
     png_charp text, png_size_t text_len, int compression);

     voidpf png_zalloc (voidpf png_ptr, uInt items, uInt size);

     void png_zfree (voidpf png_ptr, voidpf ptr);



DESCRIPTION
     The functions listed above are used privately by libpng  and
     are  not  recommended for use by applications. The functions
     are listed alphabetically here as an  aid  to  libpng  main-
     tainers.   See  png.h for more information about these func-
     tions.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | image/library/libpng        |
    |_____________________________|_____________________________|
    | Interface stability         | Uncommitted                 |
    |_____________________________|_____________________________|


SEE ALSO
     libpng(3), png(4), attributes(5)

NOTES
     This man page  was  originally  written  by  Glenn  Randers-
     Pehrson.  Updated  by Breda McColgan, Sun Microsystems Inc.,
     2004.






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