Added ability to switch emulator and it's accuracy level ("enabling of 'run at PCM rate' reduces accuracy, and also reduces CPU usage")
Added draft code for future external banks support (WOPL format for ADLMIDI and WOPN format for OPNMIDI)
ADLMIDI 1.3.3 2018-06-19
* Fixed an inability to load another custom bank without of library re-initialization
* Optimizing the MIDI banks management system for MultiBanks (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* Fixed incorrect 4-op counter which is still catch 4-op instruments on 2-op banks
* Fixed an incorrect processing of auto-flags
* Fixed incorrect initial MIDI tempo when MIDI file doesn't includes the tempo event
* Channel and Note Aftertouch features are now supported correctly! Aftertouch is the tremolo / vibrato, NOT A VOLUME!
* Updated DosBox OPL3 emulator up to r4111 of official DosBox trunk (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* The automatical choosing of 4 operator channels count has been improved (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* Added optional HQ resampler for Nuked OPL3 emulators which does usage of Zita-Resampler library (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
ADLMIDI 1.3.2 2018-04-24
* Added ability to disable MUS and XMI converters
* Added ability to disable embedded MIDI sequencer to use library as RealTime synthesizer only or use any custom MIDI sequencer plugins.
* Fixed blank instruments fallback in multi-bank support. When using non-zero bank, if instrument is blank, then, instrument will be taken from a root (I.e. zero bank).
* Added support for real-time switching the emulator
* Added support for CC-120 - "All sound off" on the MIDI channel
* Changed logic of CC-74 Brightness to affect sound only between 0 and 64 like real XG synthesizers. Ability to turn on a full-ranged brightness (to use full 0...127 range) is kept.
* Added support for different output sample formats (PCM8, PCM8U, PCM16, PCM16U, PCM32, PCM32U, Float32, and Float64) (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* Reworked MIDI channels management to avoid any memory reallocations while music processing for a hard real time. (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
OPNMIDI 1.3.0 2018-06-19
* Optimizing the MIDI banks management system for MultiBanks (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* Fixed incorrect initial MIDI tempo when MIDI file doesn't includes the tempo event
* Fixed an incorrect processing of auto-flags
* MAME YM2612 now results a more accurate sound as internal using of native sample rate makes more correct sound generation
* Channel and Note Aftertouch features are now supported correctly! Aftertouch is the tremolo / vibrato, NOT A VOLUME!
* Added optional HQ resampler for Nuked OPL3 emulators which does usage of Zita-Resampler library (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
OPNMIDI 1.2.0 2018-04-24
* Added ability to disable MUS and XMI converters
* Added ability to disable embedded MIDI sequencer to use library as RealTime synthesizer only or use any custom MIDI sequencer plugins.
* Fixed blank instruments fallback in multi-bank support. When using non-zero bank, if instrument is blank, then, instrument will be taken from a root (I.e. zero bank).
* Added support for real-time switching the emulator
* Added support for MAME YM2612 Emulator
* Added support for CC-120 - "All sound off" on the MIDI channel
* Changed logic of CC-74 Brightness to affect sound only between 0 and 64 like real XG synthesizers. Ability to turn on a full-ranged brightness (to use full 0...127 range) is kept.
* Added support for different output sample formats (PCM8, PCM8U, PCM16, PCM16U, PCM32, PCM32U, Float32, and Float64) (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
* Reworked MIDI channels management to avoid any memory reallocations while music processing for a hard real time. (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!)
- move a few variables from SceneDrawer to FRenderViewpoint.
The global r_viewpoint variable is left alone now to always represent the current viewpoint to the play code.
The main reason behind this change is to reduce the amount of global variables being used by the hardware renderer's scene processing code.
This is both for efficiency and encapsulation. At last on MSVC in 64 bit, accessing global variables is very inefficient and the clipper was doing it repeatedly in its worker functions.
It is also one less place where the global viewpoint gets checked.
