- Doing this so two fades can be installed at the end of
the credits; 1 for normal playback speed, 2 for skip
behavior
- I_FadeSong can now be used to speed up or slow down an
existing fade
- Previously, calling I_FadeSong this way would jump to
the previous target volume first, before starting a new
fade
- Should make no regressions
On 32-bit system, uint64_t is typedef to unsigned long long.
On 64-bit system, uint64_t is typedef to unsigned long.
unsigned long and unsigned long long are distinctly
separate types, which causes std::max template to fail.