fast 0..255 * 0..255 => 0..255 rounded multiplication

take a -128..127 value and stbi__clamp it and convert to 0..255

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

if there's a pending marker from the entropy stream, return that otherwise, fetch from the stream and get a marker. if there's no marker, return 0xff,

returns 1 if the product is valid, 0 on overflow. negative factors are considered invalid.

decode a jpeg huffman value from the bitstream

after a restart interval, stbi__jpeg_reset the entropy decoder and the dc prediction

initialize a callback-based context

clean up the temporary component buffers

combined JPEG 'receive' and JPEG 'extend', since baseline always extends everything it receives.

returns 0..31 for the highest set bit

mallocs with size overflow checking

initialize a memory-decode context

returns STBI_rgb or whatever, 0 on error

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return 1 if the sum is valid, 0 on overflow. negative terms are considered invalid.

Error Callbacks

Check whether the scene contains meshes Unless no special scene flags are set this will always be true.

create the png data from post-deflated data

decode one 64-entry block--

get some unsigned bits

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