Get random number: "Multiply-With-Carry" generator of G. Marsaglia */

Tries to optimize given a single PNG filter strategy. Returns 0 if ok, other value for error

convert UNICODE string aka UTF16 string to multi byte string aka UTF8 string

Deflate a part, to allow ZopfliDeflate() to use multiple master blocks if needed. It is possible to call this function multiple times in a row, shifti

index: bitgroup index, bits: bitgroup size(1, 2 or 4), in: bitgroup value, out: octet array to add bits to*/

Return the adler32 of the bytes data[0..len-1]*/

returns -1 if color not present, its index otherwise*/

LZ77-encode the data. Return value is error code. The input are raw bytes, the output is in the form of unsigned integers with codes representing for

get the distance code tree of a deflated block with fixed tree, as specified in the deflate specification*/

get the literal and length code tree of a deflated block with fixed tree, as per the deflate specification*/

Get RGBA16 color of pixel with index i (y * width + x) from the raw image with given color type, but the given color type must be 16-bit itself.*/

Get RGBA8 color of pixel with index i (y * width + x) from the raw image with given color type.*/

Similar to getPixelColorRGBA8, but with all the for loops inside of the color mode test cases, optimized to convert the colors much faster, when conve

get the tree of a deflated block with dynamic tree, the tree itself is also Huffman compressed with a known tree*/

Returns how many bits needed to represent given value (max 8 bit)*/

inflate a block with dynamic of fixed Huffman tree*/

converts from any color type to 24-bit or 32-bit (later maybe more supported). return value = LodePNG error code the out buffer must have (w * h * bpp

This returns the description of a numerical error code in English. This is also the documentation of all the error codes. */