diff options
Diffstat (limited to 'audio/softsynth/mt32/mt32emu.h')
-rw-r--r-- | audio/softsynth/mt32/mt32emu.h | 96 |
1 files changed, 37 insertions, 59 deletions
diff --git a/audio/softsynth/mt32/mt32emu.h b/audio/softsynth/mt32/mt32emu.h index 9f2b058250..1574c08f0d 100644 --- a/audio/softsynth/mt32/mt32emu.h +++ b/audio/softsynth/mt32/mt32emu.h @@ -1,5 +1,5 @@ /* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher - * Copyright (C) 2011-2016 Dean Beeler, Jerome Fisher, Sergey V. Mikayev + * Copyright (C) 2011, 2012, 2013, 2014 Dean Beeler, Jerome Fisher, Sergey V. Mikayev * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by @@ -18,66 +18,44 @@ #ifndef MT32EMU_MT32EMU_H #define MT32EMU_MT32EMU_H -#include "config.h" - -/* API Configuration */ - -/* 0: Use full-featured C++ API. Well suitable when the library is to be linked statically. - * When the library is shared, ABI compatibility may be an issue. Therefore, it should - * only be used within a project comprising of several modules to share the library code. - * 1: Use C-compatible API. Make the library looks as a regular C library with well-defined ABI. - * This is also crucial when the library is to be linked with modules in a different - * language, either statically or dynamically. - * 2: Use plugin-like API via C-interface wrapped in a C++ class. This is mainly intended - * for a shared library being dynamically loaded in run-time. To get access to all the library - * services, a client application only needs to bind with a single factory function. - * 3: Use optimised C++ API compatible with the plugin API (type 2). The facade class also wraps - * the C functions but they are invoked directly. This enables the compiler to generate better - * code for the library when linked statically yet being consistent with the plugin-like API. - */ - -#ifdef MT32EMU_API_TYPE -#if MT32EMU_API_TYPE == 0 && (MT32EMU_EXPORTS_TYPE == 1 || MT32EMU_EXPORTS_TYPE == 2) -#error Incompatible setting MT32EMU_API_TYPE=0 -#elif MT32EMU_API_TYPE == 1 && (MT32EMU_EXPORTS_TYPE == 0 || MT32EMU_EXPORTS_TYPE == 2) -#error Incompatible setting MT32EMU_API_TYPE=1 -#elif MT32EMU_API_TYPE == 2 && (MT32EMU_EXPORTS_TYPE == 0) -#error Incompatible setting MT32EMU_API_TYPE=2 -#elif MT32EMU_API_TYPE == 3 && (MT32EMU_EXPORTS_TYPE == 0) -#error Incompatible setting MT32EMU_API_TYPE=3 -#endif -#else /* #ifdef MT32EMU_API_TYPE */ -#if 0 < MT32EMU_EXPORTS_TYPE && MT32EMU_EXPORTS_TYPE < 3 -#define MT32EMU_API_TYPE MT32EMU_EXPORTS_TYPE -#else -#define MT32EMU_API_TYPE 0 -#endif -#endif /* #ifdef MT32EMU_API_TYPE */ - -/* MT32EMU_SHARED should be defined when building shared library, especially for Windows platforms. */ -/* -#define MT32EMU_SHARED -*/ - -#include "globals.h" - -#if !defined(__cplusplus) || MT32EMU_API_TYPE == 1 - -#include "c_interface/c_interface.h" - -#elif MT32EMU_API_TYPE == 2 || MT32EMU_API_TYPE == 3 - -#include "c_interface/cpp_interface.h" - -#else /* #if !defined(__cplusplus) || MT32EMU_API_TYPE == 1 */ +// Configuration + +// 0: Use 16-bit signed samples and refined wave generator based on logarithmic fixed-point computations and LUTs. Maximum emulation accuracy and speed. +// 1: Use float samples in the wave generator and renderer. Maximum output quality and minimum noise. +#define MT32EMU_USE_FLOAT_SAMPLES 0 + +namespace MT32Emu +{ +// Sample rate to use in mixing. With the progress of development, we've found way too many thing dependent. +// In order to achieve further advance in emulation accuracy, sample rate made fixed throughout the emulator, +// except the emulation of analogue path. +// The output from the synth is supposed to be resampled externally in order to convert to the desired sample rate. +const unsigned int SAMPLE_RATE = 32000; + +// The default value for the maximum number of partials playing simultaneously. +const unsigned int DEFAULT_MAX_PARTIALS = 32; + +// The higher this number, the more memory will be used, but the more samples can be processed in one run - +// various parts of sample generation can be processed more efficiently in a single run. +// A run's maximum length is that given to Synth::render(), so giving a value here higher than render() is ever +// called with will give no gain (but simply waste the memory). +// Note that this value does *not* in any way impose limitations on the length given to render(), and has no effect +// on the generated audio. +// This value must be >= 1. +const unsigned int MAX_SAMPLES_PER_RUN = 4096; + +// The default size of the internal MIDI event queue. +// It holds the incoming MIDI events before the rendering engine actually processes them. +// The main goal is to fairly emulate the real hardware behaviour which obviously +// uses an internal MIDI event queue to gather incoming data as well as the delays +// introduced by transferring data via the MIDI interface. +// This also facilitates building of an external rendering loop +// as the queue stores timestamped MIDI events. +const unsigned int DEFAULT_MIDI_EVENT_QUEUE_SIZE = 1024; +} #include "Types.h" -#include "File.h" -#include "FileStream.h" #include "ROMInfo.h" #include "Synth.h" -#include "MidiStreamParser.h" - -#endif /* #if !defined(__cplusplus) || MT32EMU_API_TYPE == 1 */ -#endif /* #ifndef MT32EMU_MT32EMU_H */ +#endif |