206 lines
7.2 KiB
C++
206 lines
7.2 KiB
C++
/*************************************************************************/
|
|
/* cp_loader_it_instruments.cpp */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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_loader_it.h"
|
|
|
|
enum EnvFlags {
|
|
ENV_ON = 1,
|
|
ENV_LOOP = 2,
|
|
ENV_SUSLOOP = 4,
|
|
ENV_CARRY = 8,
|
|
ENV_FILTER = 128
|
|
};
|
|
|
|
void CPLoader_IT::load_envelope(CPEnvelope *p_envelope, bool *p_has_filter_flag) {
|
|
|
|
uint8_t flags = file->get_byte();
|
|
uint8_t points = file->get_byte();
|
|
uint8_t begin = file->get_byte();
|
|
uint8_t end = file->get_byte();
|
|
uint8_t susbegin = file->get_byte();
|
|
uint8_t susend = file->get_byte();
|
|
|
|
p_envelope->reset();
|
|
|
|
for (int i = 0; i < 25; i++) {
|
|
|
|
uint8_t height = file->get_byte();
|
|
int8_t &signed_height = (int8_t &)height;
|
|
uint16_t tick = file->get_word();
|
|
|
|
if (i >= points)
|
|
continue;
|
|
p_envelope->add_position(tick, signed_height);
|
|
}
|
|
|
|
p_envelope->set_enabled(flags & ENV_ON);
|
|
p_envelope->set_carry_enabled(flags & ENV_CARRY);
|
|
|
|
p_envelope->set_loop_enabled(flags & ENV_LOOP);
|
|
p_envelope->set_loop_begin(begin);
|
|
p_envelope->set_loop_end(end);
|
|
|
|
p_envelope->set_sustain_loop_enabled(flags & ENV_SUSLOOP);
|
|
p_envelope->set_sustain_loop_begin(susbegin);
|
|
p_envelope->set_sustain_loop_end(susend);
|
|
|
|
if (p_has_filter_flag)
|
|
*p_has_filter_flag = flags & ENV_FILTER;
|
|
|
|
file->get_byte(); //zerobyte
|
|
|
|
//fill with stuff if the envelope hass less than 2 points
|
|
while (p_envelope->get_node_count() < 2) {
|
|
|
|
p_envelope->add_position(30 * p_envelope->get_node_count(), p_envelope->get_min() == 0 ? 64 : 0, false);
|
|
}
|
|
}
|
|
|
|
CPLoader::Error CPLoader_IT::load_instrument(CPInstrument *p_instrument, int *p_samples) {
|
|
|
|
char aux_header[4];
|
|
|
|
file->get_byte_array((uint8_t *)aux_header, 4);
|
|
|
|
if (aux_header[0] != 'I' ||
|
|
aux_header[1] != 'M' ||
|
|
aux_header[2] != 'P' ||
|
|
aux_header[3] != 'I') {
|
|
CP_PRINTERR("IT CPLoader CPInstrument: Failed Identifier");
|
|
|
|
return FILE_UNRECOGNIZED;
|
|
}
|
|
|
|
// Ignore deprecated 8.3 filename field
|
|
for (int i = 0; i < 12; i++)
|
|
file->get_byte();
|
|
|
|
//Ignore zerobyte
|
|
file->get_byte(); /* (byte) CPInstrument type (always 0) */
|
|
|
|
switch (file->get_byte()) { /* New CPNote Action [0,1,2,3] */
|
|
case 0: p_instrument->set_NNA_type(CPInstrument::NNA_NOTE_CUT); break;
|
|
case 1: p_instrument->set_NNA_type(CPInstrument::NNA_NOTE_CONTINUE); break;
|
|
case 2: p_instrument->set_NNA_type(CPInstrument::NNA_NOTE_OFF); break;
|
|
case 3: p_instrument->set_NNA_type(CPInstrument::NNA_NOTE_FADE); break;
|
|
};
|
|
switch (file->get_byte()) { // Duplicate Check Type
|
|
case 0: p_instrument->set_DC_type(CPInstrument::DCT_DISABLED); break;
|
|
case 1: p_instrument->set_DC_type(CPInstrument::DCT_NOTE); break;
|
|
case 2: p_instrument->set_DC_type(CPInstrument::DCT_SAMPLE); break;
|
|
case 3: p_instrument->set_DC_type(CPInstrument::DCT_INSTRUMENT); break;
|
|
}
|
|
switch (file->get_byte()) { //Duplicate Check Action
|
|
case 0: p_instrument->set_DC_action(CPInstrument::DCA_NOTE_CUT); break;
|
|
case 1: p_instrument->set_DC_action(CPInstrument::DCA_NOTE_OFF); break;
|
|
case 2: p_instrument->set_DC_action(CPInstrument::DCA_NOTE_FADE); break;
|
|
}
|
|
|
|
int fade = file->get_word();
|
|
//intf("AFADE: %i\n",fade);
|
|
if (fade > CPInstrument::MAX_FADEOUT) //needs to be clipped because of horrible modplug doings
|
|
fade = CPInstrument::MAX_FADEOUT;
|
|
|
|
p_instrument->set_volume_fadeout(fade);
|
|
p_instrument->set_pan_pitch_separation(file->get_byte());
|
|
p_instrument->set_pan_pitch_center(file->get_byte());
|
|
p_instrument->set_volume_global_amount(file->get_byte());
|
|
uint8_t pan = file->get_byte();
|
|
p_instrument->set_pan_default_amount(pan & 0x7F);
|
|
p_instrument->set_pan_default_enabled(!(pan & 0x80));
|
|
p_instrument->set_volume_random_variation(file->get_byte());
|
|
p_instrument->set_pan_random_variation(file->get_byte());
|
|
|
|
file->get_word(); //empty (version)
|
|
uint8_t samples = file->get_byte();
|
|
if (p_samples)
|
|
*p_samples = samples;
|
|
file->get_byte(); //empty
|
|
char aux_name[26];
|
|
file->get_byte_array((uint8_t *)aux_name, 26);
|
|
p_instrument->set_name(aux_name);
|
|
|
|
uint8_t cutoff = file->get_byte();
|
|
|
|
p_instrument->set_filter_default_cutoff(cutoff & 0x7F);
|
|
p_instrument->set_filter_use_default_cutoff(cutoff & 0x80);
|
|
|
|
uint8_t resonance = file->get_byte();
|
|
|
|
p_instrument->set_filter_default_resonance(resonance & 0x7F);
|
|
p_instrument->set_filter_use_default_resonance(resonance & 0x80);
|
|
|
|
file->get_dword(); //MIDI, IGNORED!
|
|
|
|
/* CPNote -> CPSample table */
|
|
for (uint8_t i = 0; i < CPNote::NOTES; i++) {
|
|
|
|
uint8_t note = file->get_byte();
|
|
if (note >= CPNote::NOTES)
|
|
note = 0;
|
|
p_instrument->set_note_number(i, note);
|
|
|
|
uint8_t samp = file->get_byte();
|
|
if (samp == 0 || samp > 99)
|
|
samp = CPNote::EMPTY;
|
|
else
|
|
samp--;
|
|
|
|
p_instrument->set_sample_number(i, samp);
|
|
}
|
|
|
|
load_envelope(p_instrument->get_volume_envelope());
|
|
load_envelope(p_instrument->get_pan_envelope());
|
|
bool use_as_filter;
|
|
load_envelope(p_instrument->get_pitch_filter_envelope(), &use_as_filter);
|
|
p_instrument->set_pitch_use_as_filter(use_as_filter);
|
|
|
|
return FILE_OK;
|
|
}
|
|
|
|
CPLoader::Error CPLoader_IT::load_instruments() {
|
|
|
|
for (int i = 0; i < header.insnum; i++) {
|
|
|
|
file->seek(0xC0 + header.ordnum + i * 4);
|
|
uint32_t final_location = file->get_dword();
|
|
file->seek(final_location);
|
|
|
|
Error err = load_instrument(song->get_instrument(i));
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return FILE_OK;
|
|
|
|
if (file->eof_reached() || file->get_error())
|
|
return FILE_CORRUPTED;
|
|
}
|