Simple PNG writer function by Alex Evans, 2011. Released into the public domain: https://gist.github.com/908299, more context at http://altdevblogaday

implements the search logic for finding a page and starting decoding. if the function succeeds, current_loc_valid will be true and current_loc will be

! @brief split the string input to reference tokens @note This function is only called by the json_pointer constructor. All excepti

! @brief split the string input to reference tokens @note This function is only called by the json_pointer constructor. All excepti

build a table that decodes both magnitude and value of small ACs in one go.

build a table that decodes both magnitude and value of small ACs in one go.

decode image to YCbCr format

decode image to YCbCr format

@OPTIMIZE: store non-zigzagged during the decode passes, and only de-zigzag when dequantizing

@OPTIMIZE: store non-zigzagged during the decode passes, and only de-zigzag when dequantizing

returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow

returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow