526 lines
12 KiB
C++
526 lines
12 KiB
C++
/*************************************************************************/
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/* cp_pattern.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "cp_pattern.h"
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void CPPattern::clear() {
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if (event_count > 0) {
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CP_FREE(events);
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events = NULL;
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event_count = 0;
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}
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length = DEFAULT_LEN;
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}
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bool CPPattern::resize_event_list_to(uint32_t p_events) {
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//Module is slow in some cpus, so this should be fast enough
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uint32_t new_size = ((p_events - 1) & (~((1 << RESIZE_EVERY_BITS) - 1))) + (1 << RESIZE_EVERY_BITS);
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CP_ERR_COND_V(new_size < p_events, true); //bugARM_INFO
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if (event_count == 0 && new_size == 0)
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return false; //nothing to do
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if (event_count == 0) {
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events = (Event *)CP_ALLOC(new_size * sizeof(Event));
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} else if (new_size == 0) {
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CP_FREE(events);
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events = NULL;
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} else {
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CP_ERR_COND_V(events == NULL, true);
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events = (Event *)CP_REALLOC(events, new_size * sizeof(Event));
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}
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event_count = p_events;
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return false;
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}
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int32_t CPPattern::get_event_pos(uint16_t p_target_pos) {
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if (event_count == 0)
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return -1;
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int low = 0;
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int high = event_count - 1;
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int middle;
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while (low <= high) {
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middle = (low + high) / 2;
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if (p_target_pos == events[middle].pos) { //match
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break;
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} else if (p_target_pos < events[middle].pos)
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high = middle - 1; //search low end of array
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else
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low = middle + 1; //search high end of array
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}
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/* adapt so we are behind 2 */
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if (events[middle].pos < p_target_pos)
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middle++;
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return middle;
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/* Linear search for now */
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/*
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int32_t pos_idx=0;
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for (;pos_idx<event_count;pos_idx++) {
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if (event_list[pos_idx].pos>=p_target_pos)
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break;
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} */
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//return pos_idx;
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}
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bool CPPattern::erase_event_at_pos(uint16_t p_pos) {
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if (event_count == 0)
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return false;
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Event *event_list = events;
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int32_t pos_idx = get_event_pos(p_pos);
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if (pos_idx == -1) {
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CP_ERR_COND_V(pos_idx == -1, true);
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}
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if (pos_idx == event_count || event_list[pos_idx].pos != p_pos) {
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/* Nothing to Erase */
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return false;
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}
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for (int32_t i = pos_idx; i < (event_count - 1); i++) {
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event_list[i] = event_list[i + 1];
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}
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resize_event_list_to(event_count - 1);
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return false;
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}
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bool CPPattern::set_note(uint8_t p_column, uint16_t p_row, const CPNote &p_note) {
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CP_ERR_COND_V(p_column >= WIDTH, true);
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CP_ERR_COND_V(p_row >= length, true);
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int32_t new_pos;
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uint16_t target_pos = p_row * WIDTH + p_column;
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if (p_note.is_empty()) {
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bool res = erase_event_at_pos(target_pos);
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return res;
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;
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}
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Event *event_list = 0;
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if (event_count == 0) {
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/* If no events, create the first */
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if (resize_event_list_to(1)) {
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CP_PRINTERR("Can't resize event list to 1");
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return true;
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}
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event_list = events;
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if (event_list == 0) {
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CP_PRINTERR("Can't get event list");
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return true;
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}
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new_pos = 0;
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} else {
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/* Prepare to add */
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event_list = events;
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if (event_list == 0) {
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CP_PRINTERR("Can't get event list");
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return true;
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}
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int32_t pos_idx = get_event_pos(target_pos);
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if (pos_idx == -1) {
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CP_PRINTERR("Can't find add position");
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return true;
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}
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if (pos_idx == event_count || event_list[pos_idx].pos != target_pos) {
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/* If the note being modified didnt exist, then we add it */
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//resize, and return if out of mem
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if (resize_event_list_to(event_count + 1)) {
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CP_PRINTERR("Can't resize event list");
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return true;
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}
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event_list = events;
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if (event_list == 0) {
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CP_PRINTERR("Can't get event list");
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return true;
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}
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//make room for new pos, this wont do a thing if pos_idx was ==event_count
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for (int32_t i = (event_count - 1); i > pos_idx; i--) {
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event_list[i] = event_list[i - 1];
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}
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} /* Else it means that position is taken, so we just modify it! */
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new_pos = pos_idx;
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}
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event_list[new_pos].pos = target_pos;
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event_list[new_pos].note = p_note.note;
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event_list[new_pos].instrument = p_note.instrument;
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event_list[new_pos].volume = p_note.volume;
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event_list[new_pos].command = p_note.command;
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event_list[new_pos].parameter = p_note.parameter;
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event_list[new_pos].script_source_sign = p_note.script_source_sign;
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event_list[new_pos].cloned = p_note.cloned;
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return false;
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}
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CPNote CPPattern::get_note(uint8_t p_column, uint16_t p_row) {
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if (p_column == CPNote::EMPTY) return CPNote();
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CP_ERR_COND_V(p_column >= WIDTH, CPNote());
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CP_ERR_COND_V(p_row >= length, CPNote());
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if (event_count == 0)
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return CPNote();
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Event *event_list = events;
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CP_ERR_COND_V(event_list == 0, CPNote());
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uint16_t target_pos = p_row * WIDTH + p_column;
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int32_t pos_idx = get_event_pos(target_pos);
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if (pos_idx == -1) {
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CP_PRINTERR("Can't find event pos");
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return CPNote();
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}
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if (pos_idx >= event_count || event_list[pos_idx].pos != target_pos) {
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/* no note found */
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return CPNote();
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}
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CPNote n;
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n.note = event_list[pos_idx].note;
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n.instrument = event_list[pos_idx].instrument;
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n.volume = event_list[pos_idx].volume;
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n.command = event_list[pos_idx].command;
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n.parameter = event_list[pos_idx].parameter;
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n.script_source_sign = event_list[pos_idx].script_source_sign;
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n.cloned = event_list[pos_idx].cloned;
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return n;
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}
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CPNote CPPattern::get_transformed_script_note(uint8_t p_column, uint16_t p_row) {
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CPNote n = get_note(p_column, p_row);
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// get source channel and note
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int channel = get_scripted_note_target_channel(p_column, p_row);
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CPNote src_n = get_note(channel, 0);
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if (src_n.note == CPNote::SCRIPT) return CPNote();
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script_transform_note(src_n, n);
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return src_n;
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}
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int CPPattern::get_scripted_note_target_channel(uint8_t p_column, uint16_t p_row) {
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CPNote n = get_note(p_column, p_row);
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if (n.note != CPNote::SCRIPT) return CPNote::EMPTY;
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int channel = n.instrument;
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if (n.script_source_sign == '\0') {
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if (channel < 0 || channel >= CPPattern::WIDTH) return CPNote::EMPTY;
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} else {
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channel = p_column + ((n.script_source_sign == '+') ? 1 : -1) * (channel + 1);
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if (channel < 0 || channel >= CPPattern::WIDTH) return CPNote::EMPTY;
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}
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return channel;
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}
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void CPPattern::scripted_clone(uint8_t p_column, uint16_t p_row) {
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int channel = get_scripted_note_target_channel(p_column, p_row);
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int src_row = 1;
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CPNote script_n = get_note(p_column, p_row);
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for (int row = p_row + 1; row < length; ++row) {
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CPNote src_n = get_note(channel, src_row);
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CPNote target_n = get_note(p_column, row);
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if (target_n.note != CPNote::SCRIPT) {
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if (src_n.note == CPNote::SCRIPT) {
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src_n = CPNote();
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channel = CPNote::EMPTY;
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}
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script_transform_note(src_n, script_n);
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src_n.cloned = true;
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set_note(p_column, row, src_n);
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} else {
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return;
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}
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src_row++;
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}
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}
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void CPPattern::scripted_clone_remove(uint8_t p_column, uint16_t p_row) {
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if (get_note(p_column, p_row).cloned)
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set_note(p_column, p_row, CPNote());
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for (int row = p_row + 1; row < length; ++row) {
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CPNote target_n = get_note(p_column, row);
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if (target_n.note != CPNote::SCRIPT) {
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set_note(p_column, row, CPNote());
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} else {
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return;
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}
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}
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}
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void CPPattern::script_transform_note(CPNote &n, const CPNote &p_note) {
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// set instrument
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if (n.note < CPNote::NOTES && p_note.volume != CPNote::EMPTY) {
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n.instrument = p_note.volume;
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}
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// transpose
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if (n.note < CPNote::NOTES && p_note.command != CPNote::EMPTY) {
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int transpose = (p_note.parameter & 0xF) + (p_note.parameter / 0x10) * 12;
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if (p_note.command == '^') {
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if (n.note >= CPNote::NOTES - transpose)
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n.note = CPNote::NOTES - 1;
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else
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n.note += transpose;
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} else if (p_note.command == 'v') {
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if (n.note <= transpose)
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n.note = 0;
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else
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n.note -= transpose;
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}
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}
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}
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bool CPPattern::update_scripted_clones_sourcing_channel(int channel) {
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bool updated = false;
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for (int x = 0; x < WIDTH; ++x) {
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for (int y = 0; y < length; ++y) {
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if (channel == get_scripted_note_target_channel(x, y)) {
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scripted_clone(x, y);
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updated = true;
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}
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}
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}
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return updated;
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}
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void CPPattern::set_length(uint16_t p_rows) {
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if (event_count == 0) {
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if (p_rows >= MIN_ROWS)
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length = p_rows;
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return;
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}
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if (p_rows < MIN_ROWS) {
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return;
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}
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if (p_rows < length) {
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Event *event_list = events;
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if (event_list == 0) {
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CP_PRINTERR("get_event_list() Failed");
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return;
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}
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uint16_t target_pos = p_rows * WIDTH;
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int32_t pos_idx = get_event_pos(target_pos);
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if (pos_idx == -1) {
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CP_ERR_COND(pos_idx == -1);
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}
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if (resize_event_list_to(pos_idx)) {
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CP_PRINTERR("resize_event_list_to(pos_idx) Failed");
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return;
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}
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}
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length = p_rows;
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}
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#if 0
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void CPPattern::copy_to(CPPattern *p_pattern) const {
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p_pattern->clear();
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p_pattern->length=length;
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if (!event_count)
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return;
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int bufsiz=MemPool_Wrapper::get_singleton()->get_mem_size( mem_handle );
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MemPool_Handle aux_mem_handle=MemPool_Wrapper::get_singleton()->alloc_mem( bufsiz );
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if (aux_mem_handle.is_null()) {
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CP_PRINTERR("own handle is null");
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return;
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}
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if (MemPool_Wrapper::get_singleton()->lock_mem(aux_mem_handle)) {
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CP_PRINTERR("Unable to lock aux new handle");
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return;
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}
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if (MemPool_Wrapper::get_singleton()->lock_mem(mem_handle)) {
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CP_PRINTERR("Unable to lock own handle");
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return;
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}
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uint8_t* srcuint8_tt8_t*)MemPool_Wrapper::get_singleton()->get_mem(mem_handle);
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uint8_t* dstuint8_tt8_t*)MemPool_Wrapper::get_singleton()->get_mem(aux_mem_handle);
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for (int i=0;i<bufsiz;i++)
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dst[i]=src[i];
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MemPool_Wrapper::get_singleton()->unlock_mem(mem_handle);
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MemPool_Wrapper::get_singleton()->unlock_mem(aux_mem_handle);
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p_pattern->mem_handle=aux_mem_handle;
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p_pattern->event_count=event_count;
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}
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#endif
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uint16_t CPPattern::get_length() {
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return length;
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}
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CPPattern::CPPattern() {
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length = DEFAULT_LEN;
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event_count = 0;
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clear();
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}
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bool CPPattern::is_empty() {
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return events == NULL;
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}
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CPPattern::~CPPattern() {
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clear();
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}
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