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-rw-r--r--audio/softsynth/mt32/mt32emu.h96
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