permutation for mapping srcfmt to dstfmt, overloading or not the alpha channel

multiply and xor mix function, aka MUM

Set the last global error to be reported by hid_error(NULL). * The given error message will be copied (and decoded according to the * currently loca

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

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

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

initialize a callback-based context

Convert angle in radians to the range \f$[-\pi, \pi]\f$

Reset to empty.

this expects the device lock to be held.

Get density of the shape (kg / m^3)

Get the next higher power of 2 of a value, or the value itself if the value is already a power of 2

Get rotation part only (note: retains the first 3 values from the bottom row)

Check if this body is dynamic, which means that it moves and forces can act on it

Gets whether the entity is enabled.

Check if the normal of the ground surface is too steep to walk on

Returns true if the player is supported by normal or steep ground

Called when a device is removed from the system, or it fails unexpectedly, from any thread, possibly even the camera device's thread.