/*
This file is part of LilyPond, the GNU music typesetter.
- Copyright (C) 1997--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+ Copyright (C) 1997--2014 Jan Nieuwenhuizen <janneke@gnu.org>
LilyPond is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "duration.hh"
#include "international.hh"
+#include "libc-extension.hh"
#include "main.hh"
#include "midi-stream.hh"
#include "misc.hh"
return new Midi_time_signature (i);
else if (Audio_text *i = dynamic_cast<Audio_text *> (a))
return new Midi_text (i);
+ else if (Audio_control_function_value_change *i
+ = dynamic_cast<Audio_control_function_value_change *> (a))
+ return new Midi_control_function_value_change (i);
else
assert (0);
{
}
+Midi_control_function_value_change
+::Midi_control_function_value_change (Audio_control_function_value_change *ai)
+ : Midi_channel_item (ai), control_ (ai->control_), value_ (ai->value_)
+{
+}
+
Midi_item::~Midi_item ()
{
}
+Midi_channel_item::~Midi_channel_item ()
+{
+}
+
+Midi_control_function_value_change::~Midi_control_function_value_change ()
+{
+}
+
string
int2midi_varint_string (int i)
{
int num = abs (audio_->beats_);
if (num > 255)
{
- warning ("Time signature with more than 255 beats. Truncating");
+ warning (_ ("Time signature with more than 255 beats. Truncating"));
num = 255;
}
Midi_note::Midi_note (Audio_note *a)
: Midi_channel_item (a),
audio_ (a),
- dynamic_byte_ (a->dynamic_ && a->dynamic_->volume_ >= 0
- ? Byte (a->dynamic_->volume_ * 0x7f) : Byte (0x5a))
+ dynamic_byte_ (min (max (Byte ((a->dynamic_ && a->dynamic_->volume_ >= 0
+ ? a->dynamic_->volume_ * 0x7f : 0x5a)
+ + a->extra_velocity_),
+ Byte (0)), Byte (0x7f)))
{
}
return str;
}
+string
+Midi_control_function_value_change::to_string () const
+{
+ // MIDI control function information. A MIDI control function may have one
+ // or two assigned control numbers depending on whether it supports coarse
+ // (7-bit) or fine (14-bit) resolution. If the control function supports
+ // fine resolution, the first (respectively, second) member of the structure
+ // represents the control number for setting the most (least) significant 7
+ // bits of the control function's value.
+ struct Control_function
+ {
+ int msb_control_number_;
+ int lsb_control_number_;
+ };
+
+ // Mapping from supported control functions (enumeration values defined in
+ // Audio_controller_value_change::Control) to the corresponding MIDI control
+ // numbers.
+ static const Control_function control_functions[] =
+ {
+ // When adding support for new control functions, please note the
+ // following:
+ // - The order of the control number definitions should be kept
+ // consistent with the order of the enumeration values defined in
+ // Audio_control_function_value_change::Control.
+ // - If the control function has only coarse resolution, the function's
+ // control number should be stored in the MSB member of the array
+ // element, and the LSB member should be set to a negative value.
+
+ { 8, 40 }, // balance
+ { 10, 42 }, // pan position
+ { 91, -1 }, // reverb level (only coarse resolution available)
+ { 93, -1 } // chorus level (only coarse resolution available)
+ };
+
+ string str;
+ const Control_function *control_function = &control_functions[control_];
+ static const Real full_fine_scale = 0x3FFF;
+ static const Real full_coarse_scale = 0x7F;
+ bool fine_resolution = (control_function->lsb_control_number_ >= 0);
+ // value_ is in range [0.0 .. 1.0]. For directional value ranges,
+ // #CENTER will correspond to 0.5 exactly, and my_round rounds
+ // upwards when in case of doubt. That means that center position
+ // will round to 0x40 or 0x2000 by a hair's breadth.
+ int value = (int) my_round (value_ * (fine_resolution ?
+ full_fine_scale : full_coarse_scale));
+ Byte status_byte = (char) (0xB0 + channel_);
+ str += ::to_string ((char)status_byte);
+ str += ::to_string ((char)(control_function->msb_control_number_));
+ str += ::to_string ((char)(fine_resolution ? (value >> 7) : value));
+ if (fine_resolution)
+ {
+ str += ::to_string ((char)0x00);
+ str += ::to_string ((char)status_byte);
+ str += ::to_string ((char)(control_function->lsb_control_number_));
+ str += ::to_string ((char)(value & 0x7F));
+ }
+ return str;
+}
+
char const *
Midi_item::name () const
{