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livetrax/gtk2_ardour/midi_util.h

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/*
Copyright (C) 2007 Paul Davis
Author: Dave Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_midi_util_h__
#define __gtk_ardour_midi_util_h__
#include "rgb_macros.h"
#include "ardour_ui.h"
#include "ui_config.h"
inline static uint32_t note_outline_color(uint8_t vel)
{
if (vel < 64) {
return UINT_INTERPOLATE(
ARDOUR_UI::config()->canvasvar_MidiNoteOutlineMin.get(),
ARDOUR_UI::config()->canvasvar_MidiNoteOutlineMid.get(),
(vel / (double)63.0));
} else {
return UINT_INTERPOLATE(
ARDOUR_UI::config()->canvasvar_MidiNoteOutlineMid.get(),
ARDOUR_UI::config()->canvasvar_MidiNoteOutlineMax.get(),
((vel-64) / (double)63.0));
}
}
inline static uint32_t note_fill_color(uint8_t vel)
{
if (vel < 64) {
return UINT_INTERPOLATE(
ARDOUR_UI::config()->canvasvar_MidiNoteFillMin.get(),
ARDOUR_UI::config()->canvasvar_MidiNoteFillMid.get(),
(vel / (double)63.0));
} else {
return UINT_INTERPOLATE(
ARDOUR_UI::config()->canvasvar_MidiNoteFillMid.get(),
ARDOUR_UI::config()->canvasvar_MidiNoteFillMax.get(),
((vel-64) / (double)63.0));
}
}
inline static void clamp_0_to_127(uint8_t &val)
{
if( (127 < val) && (val < 192) ) {
val = 127;
} else if( (192 <= val) && (val < 255) ) {
val = 0;
}
}
#endif /* __gtk_ardour_midi_util_h__ */