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src/Source/LibPNG/pngpriv.h  view on Meta::CPAN

PNG_INTERNAL_FUNCTION(void,png_push_have_end,(png_structrp png_ptr,
   png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_have_row,(png_structrp png_ptr,
     png_bytep row),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_end,(png_structrp png_ptr,
    png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_process_some_data,(png_structrp png_ptr,
    png_inforp info_ptr),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_read_push_finish_row,(png_structrp png_ptr),
    PNG_EMPTY);
#  ifdef PNG_READ_tEXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_push_handle_tEXt,(png_structrp png_ptr,
    png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_tEXt,(png_structrp png_ptr,
    png_inforp info_ptr),PNG_EMPTY);
#  endif
#  ifdef PNG_READ_zTXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_push_handle_zTXt,(png_structrp png_ptr,
    png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_zTXt,(png_structrp png_ptr,
    png_inforp info_ptr),PNG_EMPTY);
#  endif
#  ifdef PNG_READ_iTXt_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_push_handle_iTXt,(png_structrp png_ptr,
    png_inforp info_ptr, png_uint_32 length),PNG_EMPTY);
PNG_INTERNAL_FUNCTION(void,png_push_read_iTXt,(png_structrp png_ptr,
    png_inforp info_ptr),PNG_EMPTY);
#  endif

#endif /* PROGRESSIVE_READ */

/* Added at libpng version 1.6.0 */
#ifdef PNG_GAMMA_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_colorspace_set_gamma,(png_const_structrp png_ptr,
    png_colorspacerp colorspace, png_fixed_point gAMA), PNG_EMPTY);
   /* Set the colorspace gamma with a value provided by the application or by
    * the gAMA chunk on read.  The value will override anything set by an ICC
    * profile.
    */

PNG_INTERNAL_FUNCTION(void,png_colorspace_sync_info,(png_const_structrp png_ptr,
    png_inforp info_ptr), PNG_EMPTY);
    /* Synchronize the info 'valid' flags with the colorspace */

PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr,
    png_inforp info_ptr), PNG_EMPTY);
    /* Copy the png_struct colorspace to the info_struct and call the above to
     * synchronize the flags.  Checks for NULL info_ptr and does nothing.
     */
#endif

/* Added at libpng version 1.4.0 */
#ifdef PNG_COLORSPACE_SUPPORTED
/* These internal functions are for maintaining the colorspace structure within
 * a png_info or png_struct (or, indeed, both).
 */
PNG_INTERNAL_FUNCTION(int,png_colorspace_set_chromaticities,
   (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_xy *xy,
    int preferred), PNG_EMPTY);

PNG_INTERNAL_FUNCTION(int,png_colorspace_set_endpoints,
   (png_const_structrp png_ptr, png_colorspacerp colorspace, const png_XYZ *XYZ,
    int preferred), PNG_EMPTY);

#ifdef PNG_sRGB_SUPPORTED
PNG_INTERNAL_FUNCTION(int,png_colorspace_set_sRGB,(png_const_structrp png_ptr,
   png_colorspacerp colorspace, int intent), PNG_EMPTY);
   /* This does set the colorspace gAMA and cHRM values too, but doesn't set the
    * flags to write them, if it returns false there was a problem and an error
    * message has already been output (but the colorspace may still need to be
    * synced to record the invalid flag).
    */
#endif /* sRGB */

#ifdef PNG_iCCP_SUPPORTED
PNG_INTERNAL_FUNCTION(int,png_colorspace_set_ICC,(png_const_structrp png_ptr,
   png_colorspacerp colorspace, png_const_charp name,
   png_uint_32 profile_length, png_const_bytep profile, int color_type),
   PNG_EMPTY);
   /* The 'name' is used for information only */

/* Routines for checking parts of an ICC profile. */
PNG_INTERNAL_FUNCTION(int,png_icc_check_length,(png_const_structrp png_ptr,
   png_colorspacerp colorspace, png_const_charp name,
   png_uint_32 profile_length), PNG_EMPTY);
PNG_INTERNAL_FUNCTION(int,png_icc_check_header,(png_const_structrp png_ptr,
   png_colorspacerp colorspace, png_const_charp name,
   png_uint_32 profile_length,
   png_const_bytep profile /* first 132 bytes only */, int color_type),
   PNG_EMPTY);
PNG_INTERNAL_FUNCTION(int,png_icc_check_tag_table,(png_const_structrp png_ptr,
   png_colorspacerp colorspace, png_const_charp name,
   png_uint_32 profile_length,
   png_const_bytep profile /* header plus whole tag table */), PNG_EMPTY);
#ifdef PNG_sRGB_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_icc_set_sRGB,(
   png_const_structrp png_ptr, png_colorspacerp colorspace,
   png_const_bytep profile, uLong adler), PNG_EMPTY);
   /* 'adler' is the Adler32 checksum of the uncompressed profile data. It may
    * be zero to indicate that it is not available.  It is used, if provided,
    * as a fast check on the profile when checking to see if it is sRGB.
    */
#endif
#endif /* iCCP */

#ifdef PNG_READ_RGB_TO_GRAY_SUPPORTED
PNG_INTERNAL_FUNCTION(void,png_colorspace_set_rgb_coefficients,
   (png_structrp png_ptr), PNG_EMPTY);
   /* Set the rgb_to_gray coefficients from the colorspace Y values */
#endif /* READ_RGB_TO_GRAY */
#endif /* COLORSPACE */

/* Added at libpng version 1.4.0 */
PNG_INTERNAL_FUNCTION(void,png_check_IHDR,(png_const_structrp png_ptr,
    png_uint_32 width, png_uint_32 height, int bit_depth,
    int color_type, int interlace_type, int compression_type,
    int filter_type),PNG_EMPTY);

/* Added at libpng version 1.5.10 */
#if defined(PNG_READ_CHECK_FOR_INVALID_INDEX_SUPPORTED) || \
    defined(PNG_WRITE_CHECK_FOR_INVALID_INDEX_SUPPORTED)