perform the butterfly for one stage of a mixed radix FFT */

=============================================================== * * PANEL * * =======================================

=============================================================== * * MATH * * ========================================

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

extract an arbitrarily-aligned N-bit value (N=bits) from v, and then make it 8-bits long and fractionally extend it to full full range.

initialize a callback-based context

returns STBI_rgb or whatever, 0 on error

Terminate the library

Translates an X event modifier state mask

Updates the cursor clip rect

AddCharUTF inserts an array of bytes which may or may not be in UTF-8.