virtualx-engine/drivers/chibi/cp_player_data_envelopes.cpp
2014-02-09 22:10:30 -03:00

89 lines
3.9 KiB
C++

/*************************************************************************/
/* cp_player_data_envelopes.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "cp_player_data.h"
void CPPlayer::Voice_Control::start_envelope(CPEnvelope *p_envelope,Envelope_Control *p_envelope_ctrl,Envelope_Control *p_from_env) {
if (p_from_env && p_envelope->is_carry_enabled() && !p_from_env->terminated) {
*p_envelope_ctrl=*p_from_env;
} else {
p_envelope_ctrl->pos_index=0;
p_envelope_ctrl->status=1;
p_envelope_ctrl->sustain_looping=p_envelope->is_sustain_loop_enabled();
p_envelope_ctrl->looping=p_envelope->is_loop_enabled();
p_envelope_ctrl->terminated=false;
p_envelope_ctrl->kill=false;
p_envelope_ctrl->value=p_envelope->get_height_at_pos(p_envelope_ctrl->pos_index);
}
}
bool CPPlayer::Voice_Control::process_envelope(CPEnvelope *p_envelope,Envelope_Control *p_envelope_ctrl) {
if (!p_envelope_ctrl->active)
return false;
if (note_end_flags&END_NOTE_OFF) p_envelope_ctrl->sustain_looping=false;
p_envelope_ctrl->value=p_envelope->get_height_at_pos(p_envelope_ctrl->pos_index);
if (p_envelope_ctrl->value==CPEnvelope::NO_POINT)
return false;
p_envelope_ctrl->pos_index++;
if (p_envelope_ctrl->sustain_looping) {
if (p_envelope_ctrl->pos_index>p_envelope->get_node(p_envelope->get_sustain_loop_end()).tick_offset) {
p_envelope_ctrl->pos_index=p_envelope->get_node(p_envelope->get_sustain_loop_begin()).tick_offset;
}
} else if (p_envelope_ctrl->looping) {
if (p_envelope_ctrl->pos_index>p_envelope->get_node(p_envelope->get_loop_end()).tick_offset) {
p_envelope_ctrl->pos_index=p_envelope->get_node(p_envelope->get_loop_begin()).tick_offset;
}
}
if (p_envelope_ctrl->pos_index>p_envelope->get_node(p_envelope->get_node_count()-1).tick_offset) {
p_envelope_ctrl->terminated=true;
p_envelope_ctrl->pos_index=p_envelope->get_node(p_envelope->get_node_count()-1).tick_offset;
if (p_envelope->get_node(p_envelope->get_node_count()-1).value==0) p_envelope_ctrl->kill=true;
}
return true;
}