Private helper to check if a system needs init.

Private helper to check if a system needs to be quit.

Return position in world space.

Set the last error for a device to be reported by hid_error(dev). * The given error message will be copied (and decoded according to the * currently

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

Return far clip distance.

Return image height in pixels.

Maximum helper for ints.

Return whether the window and OpenGL context are successfully initialized.

Return length.

Return squared length.

Create a condition variable

* This function performs a fast fill of the given rectangle with 'color' */

* Get the index of the most significant (set) bit in a 32-bit number. * * Result is undefined when called with 0. This operation can also be stated

* Helper function to add a mapping for a guid */

Don't hold the device lock when calling this, as we may destroy the device!