diff options
Diffstat (limited to 'converter/other/pngx.h')
| -rw-r--r-- | converter/other/pngx.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/converter/other/pngx.h b/converter/other/pngx.h index 81e0dc55..f4701bb2 100644 --- a/converter/other/pngx.h +++ b/converter/other/pngx.h @@ -1,7 +1,12 @@ #ifndef PNGX_H_INCLUDED #define PNGX_H_INCLUDED +#include <stdbool.h> #include <png.h> + /* This includes the Zlib interface header file zlib.h because libpng uses + libz and some of the Zlib interface, e.g. the Z_DEFLATED constant, + is part of the libpng interface. + */ #include "pm_c_util.h" /* pngx is designed to be an extension of the PNG library to make using @@ -49,10 +54,16 @@ struct pngx { pngx_rw rw; png_uint_16 maxval; unsigned int numPassesRequired; - /* The number of times we have write the complete image to the + /* The number of times we have to write the complete image to the compressor. This is more than one when the compressor is set up to do an interlaced format. */ + bool infoPrepared; + /* png_write_info or png_read_info has been called, so libpng is in a + state in which things such as png_set_interlace_handling will work. + These functions use information in *png_ptr that is set by + png_XXX_info. + */ }; void @@ -266,6 +277,10 @@ pngx_writeRow(struct pngx * const pngxP, const png_byte * const line); void +pngx_writeImage(struct pngx * const pngxP, + png_byte ** const raster); + +void pngx_readEnd(struct pngx * const pngxP); void |