Writes the contents of a string to a file

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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

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

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

Paeth predicter, used by PNG filter type 4 The parameters are of type short, but should come from unsigned chars, the shorts are only needed to make t

out must be buffer big enough to contain uncompressed IDAT chunk data, and in must contain the full image. return value is error**/

search the index in the array, that has the largest value smaller than or equal to the given value, given array must be sorted (if no value is smaller

This uses a simple combsort to sort the data. This function is not critical for overall encoding speed and the data amount isn't that large. */

returns 1 if success, 0 if failure ==> nothing done*/

write the lz77-encoded data, which has lit, len and dist codes, to compressed stream using huffman trees. tree_ll: the tree for lit and len codes. tre

in: Adam7 interlaced image, with no padding bits between scanlines, but between reduced images so that each reduced image starts at a byte. out: the

in: non-interlaced image with size w*h out: the same pixels, but re-ordered according to PNG's Adam7 interlacing, with no padding bits between scanli

Finds the approximate smallest enclosing bounding sphere for a set of points. Based on "An Efficient Bounding Sphere", by Jack Ritter.

Calculates the bounding sphere for each MeshPart

Make the table for a fast CRC.*/

Update a running CRC with the bytes buf[0..len-1]--the CRC should be initialized to all 1's, and the transmitted value is the 1's complement of the fi

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Creates the chain of render targets used for computing min/max depth

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Returns the name of the file given the path, minus the extension

Gets the last written timestamp of the file

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-------------------------------------------------------------------------------------- Get surface information for a particular format ---------------