752 lines
25 KiB
C++
752 lines
25 KiB
C++
/*************************************************************************/
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/* cp_loader_xm.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
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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_loader_xm.h"
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#include "cp_tables.h"
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#define ABORT_LOAD { file->close(); return FILE_CORRUPTED; }
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CPLoader::Error CPLoader_XM::load_song(const char *p_file,CPSong *p_song,bool p_sampleset) {
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song=p_song;
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if (file->open(p_file,CPFileAccessWrapper::READ)) {
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return FILE_CANNOT_OPEN;
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};
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/**************************************
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LOAD HEADER
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***************************************/
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file->get_byte_array(header.idtext,17);
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header.idtext[17]=0;
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file->get_byte_array(header.songname,20);
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header.songname[20]=0;
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header.hex1a=file->get_byte();
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if (header.hex1a!=0x1A) { //XM "magic" byte.. this sucks :)
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file->close();
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return FILE_UNRECOGNIZED;
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}
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//magic byte sucks, but can't do much about it..
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song->reset(); //must reset the song
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song->set_name( (const char*)header.songname );
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file->get_byte_array(header.trackername,20);
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header.trackername[20]=0;
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header.version=file->get_word();
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header.headersize=file->get_dword();
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header.songlength=file->get_word();
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header.restart_pos=file->get_word();
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header.channels_used=file->get_word();
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header.patterns_used=file->get_word();
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header.instruments_used=file->get_word();
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song->set_linear_slides( file->get_word() );
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song->set_speed( file->get_word() );
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song->set_tempo( file->get_word() );
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song->set_instruments( true );
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file->get_byte_array(header.orderlist,256);
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for (int i=0;i<header.songlength;i++) {
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if (i>199)
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break;
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song->set_order(i,header.orderlist[i]);
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}
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/**************************************
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LOAD PATTERNS
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***************************************/
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for (int i=0;i<header.patterns_used;i++) {
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uint32_t aux,rows;
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aux=file->get_dword(); //length
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aux=file->get_byte(); //packing type
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rows=aux=file->get_word(); //rows!
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song->get_pattern(i)->set_length( aux );
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aux=file->get_word(); //packed size
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if (aux==0)
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continue;
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//unpaaack!
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for(int j=0;j<(int)rows;j++)
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for(int k=0;k<header.channels_used;k++) {
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CPNote aux_note;
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uint8_t aux_byte;
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//uint8_t field;
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aux_byte=file->get_byte(); //packing type
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if (!(aux_byte&0x80)) {
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aux_note.note=aux_byte;
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aux_byte=0xFE; //if bit 7 not set, read all of them except the note
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}
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if (aux_byte&1) aux_note.note=file->get_byte();
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if (aux_byte&2) aux_note.instrument=file->get_byte();
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if (aux_byte&4) aux_note.volume=file->get_byte();
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if (aux_byte&8) aux_note.command=file->get_byte();
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if (aux_byte&16) aux_note.parameter=file->get_byte();
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if (aux_note.note!=CPNote::EMPTY) {
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if (aux_note.note==97) aux_note.note=CPNote::OFF;
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else {
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aux_note.note+=11; //octave minus one (XM C-0 is 1, not zero )
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}
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}
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if (aux_note.instrument!=CPNote::EMPTY) {
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if ((aux_note.instrument>0) && (aux_note.instrument<100))
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aux_note.instrument--;
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else
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aux_note.instrument=CPNote::EMPTY;
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}
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if (aux_note.volume!=CPNote::EMPTY) {
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if (aux_note.volume<0x10) {}
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else if (aux_note.volume<0x50) {
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aux_note.volume-=0x10;
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} else if (aux_note.volume<0x60) {
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//
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aux_note.volume=CPNote::EMPTY;
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} else if (aux_note.volume<0x70) {
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//60 -- volume slide down
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aux_note.volume-=0x60;
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if (aux_note.volume>9) aux_note.volume=9;
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aux_note.volume+=95;
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} else if (aux_note.volume<0x80) {
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//70 -- volume slide up
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aux_note.volume-=0x70;
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if (aux_note.volume>9) aux_note.volume=9;
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aux_note.volume+=85;
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} else if (aux_note.volume<0x90) {
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//80 -- fine volume slide down
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aux_note.volume-=0x80;
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if (aux_note.volume>9) aux_note.volume=9;
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aux_note.volume+=75;
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} else if (aux_note.volume<0xA0) {
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//9 -- fine volume slide up
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aux_note.volume-=0x90;
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if (aux_note.volume>9) aux_note.volume=9;
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aux_note.volume+=65;
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} else if (aux_note.volume<0xB0) {
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//A -- set vibrato speed
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aux_note.volume=CPNote::EMPTY;
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} else if (aux_note.volume<0xC0) {
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//B -- vibrato
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aux_note.volume-=0xB0;
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if (aux_note.volume>9) aux_note.volume=9;
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aux_note.volume+=203;
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} else if (aux_note.volume<0xD0) {
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//C -- set panning
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int aux=aux_note.volume-=0xC0;
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aux=aux*65/0xF;
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aux_note.volume=128+aux;
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} else if (aux_note.volume<0xE0) {
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aux_note.volume=CPNote::EMPTY;
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} else if (aux_note.volume<0xF0) {
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aux_note.volume=CPNote::EMPTY;
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} else {
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//F -- tone porta
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aux_note.volume-=0xF0;
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aux_note.volume*=9;
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aux_note.volume/=0xF;
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aux_note.volume+=193;
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}
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}
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if (aux_note.command!=CPNote::EMPTY) {
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switch(aux_note.command) {
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case 0x0:
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aux_note.command='J'-'A';
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break;
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case 0x1:
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aux_note.command='F'-'A';
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break;
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case 0x2:
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aux_note.command='E'-'A';
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break;
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case 0x3:
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aux_note.command='G'-'A';
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break;
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case 0x4:
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aux_note.command='H'-'A';
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break;
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case 0x5:
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aux_note.command='L'-'A';
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break;
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case 0x6:
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aux_note.command='K'-'A';
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break;
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case 0x7:
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aux_note.command='R'-'A';
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break;
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case 0x8:
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aux_note.command='X'-'A';
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break;
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case 0x9:
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aux_note.command='O'-'A';
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break;
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case 0xa:
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aux_note.command='D'-'A';
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break;
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case 0xb:
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aux_note.command='B'-'A';
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break;
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case 0xc:
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//printf("XM Import: Warning! effect C (set volume) not implemented!\n");
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break;
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case 0xd:
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aux_note.command='C'-'A';
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break;
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case 0xe: /* Extended effects */
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aux_note.command='S'-'A';
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switch(aux_note.parameter>>4) {
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case 0x1: /* XM fine porta up */
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if (!(aux_note.parameter&0xF)) { aux_note.command=CPNote::EMPTY; aux_note.parameter=0; break; }
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aux_note.command='F'-'A';
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aux_note.parameter=0xF0|(aux_note.parameter&0xF);
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break;
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case 0x2: /* XM fine porta down */
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if (!(aux_note.parameter&0xF)) { aux_note.command=CPNote::EMPTY; aux_note.parameter=0; break; }
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aux_note.command='E'-'A';
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aux_note.parameter=0xF0|(aux_note.parameter&0xF);
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break;
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case 0xa: /* XM fine volume up */
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if (!(aux_note.parameter&0xF)) { aux_note.command=CPNote::EMPTY; aux_note.parameter=0; break; }
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aux_note.command='D'-'A';
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aux_note.parameter=0x0F|((aux_note.parameter&0xF)<<4);
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break;
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case 0xb: /* XM fine volume down */
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if (!(aux_note.parameter&0xF)) { aux_note.command=CPNote::EMPTY; aux_note.parameter=0; break; }
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aux_note.command='D'-'A';
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aux_note.parameter=0xF0|(aux_note.parameter&0xF);
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break;
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case 0x9: /* XM fine volume down */
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if (!(aux_note.parameter&0xF)) { aux_note.command=CPNote::EMPTY; aux_note.parameter=0; break; }
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aux_note.command='Q'-'A';
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aux_note.parameter=0x00|(aux_note.parameter&0xF);
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break;
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case 0xc: //notecut
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aux_note.parameter=0xC0|(aux_note.parameter&0xF);
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break;
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case 0xd: //notedelay
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aux_note.parameter=0xD0|(aux_note.parameter&0xF);
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break;
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case 0xe: //patterndelay
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aux_note.parameter=0xE0|(aux_note.parameter&0xF);
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break;
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}
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break;
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case 0xf:
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if (aux_note.parameter<32) {
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aux_note.command='A'-'A';
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} else {
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aux_note.command='T'-'A';
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}
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break;
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case 'G'-55:
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aux_note.command='V'-'A';
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break;
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case 'H'-55:
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aux_note.command='W'-'A';
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break;
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case 'K'-55:
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if (aux_note.note!=CPNote::EMPTY) break;
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aux_note.note=CPNote::OFF;
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break;
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case 'P'-55:
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aux_note.command='P'-'A';
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break;
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case 'R'-55:
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aux_note.command='Q'-'A';
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break;
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case 'T'-55:
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aux_note.command='I'-'A';
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break;
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default: {
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aux_note.command=CPNote::EMPTY;
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}
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}
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}
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song->get_pattern( i)->set_note( k,j,aux_note );
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}
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}
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/**************************************
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LOAD INSTRUMENTS!
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***************************************/
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for (int i=0;i<header.instruments_used;i++) {
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uint32_t aux;
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int sampnum;
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CPInstrument &instrument=*song->get_instrument(i);
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uint32_t cpos=file->get_pos();
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//printf("pos is %i\n",cpos);
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/* +4 */ uint32_t hsize=file->get_dword(); //header length
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char instrname[23];
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instrname[22]=0;
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file->get_byte_array((uint8_t*)instrname,22);
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//XM_LOAD_DEBUG printf("name is %s\n",instrname);
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/* +27 */ aux=file->get_byte(); //byte that must be ignored
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//XM_LOAD_DEBUG printf("header size is %i\n",hsize);
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/* +29 */ sampnum=file->get_word();
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//XM_LOAD_DEBUG printf("samples %i\n",sampnum);
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instrument.set_name( instrname );
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// printf("Header Len: %i, CPInstrument %i, %i samples , name: s,\n",hsize,i,sampnum,instrname);
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if (sampnum==0) {
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//aux=file->get_dword(); //Why is this for? -- for nothing, skipped
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if (hsize) {
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file->seek( cpos+hsize ); //skip header if size has been specified
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}
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continue;
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}
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/* +33 */ file->get_dword();
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if (Error result=load_instrument_internal(&instrument,false,cpos,hsize,sampnum)) {
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CP_PRINTERR("Error loading instrument");
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file->close();
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return result;
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}
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}
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//
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file->close();
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return FILE_OK;
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}
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CPLoader::Error CPLoader_XM::load_instrument_internal(CPInstrument *p_instr,bool p_xi,int p_cpos, int p_hsize, int p_sampnum) {
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int sampnum;
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uint32_t aux;
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uint8_t notenumb[96];
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uint16_t panenv[24],volenv[24];
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int volpoints,panpoints;
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int vol_loop_begin,vol_loop_end,vol_sustain_loop;
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int pan_loop_begin,pan_loop_end,pan_sustain_loop;
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char instrname[23];
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int sample_index[16]={-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1}; //-1 means no index!
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instrname[22]=0;
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/* +129 */ file->get_byte_array((uint8_t*)notenumb,96);
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for (int j=0;j<24;j++) {
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volenv[j]=file->get_word();
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}
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for (int j=0;j<24;j++) {
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panenv[j]=file->get_word();
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}
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/* +177 */
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/* +225 */
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/* +226 */ volpoints=file->get_byte();
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/* +227 */ panpoints=file->get_byte();
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/* +230 */ vol_sustain_loop=file->get_byte();
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/* +228 */ vol_loop_begin=file->get_byte();
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/* +229 */ vol_loop_end=file->get_byte();
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//XM_LOAD_DEBUG printf("1- volpoints: %i, panpoints: %i, susloop: %i, loop begin: %i, loop end %i\n",volpoints,panpoints,vol_sustain_loop,vol_loop_begin,vol_loop_end);
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pan_sustain_loop=file->get_byte();
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/* +231 */ pan_loop_begin=file->get_byte();
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/* +232 */ pan_loop_end=file->get_byte();
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/* +234 */ aux=file->get_byte();
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p_instr->get_volume_envelope()->reset();
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p_instr->get_volume_envelope()->set_enabled(aux&1);
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p_instr->get_volume_envelope()->set_sustain_loop_enabled((aux&2)?true:false);
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p_instr->get_volume_envelope()->set_loop_enabled((aux&4)?true:false);
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/* +235 */ aux=file->get_byte();
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p_instr->get_pan_envelope()->reset();
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p_instr->get_pan_envelope()->set_enabled(aux&1);
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p_instr->get_pan_envelope()->set_sustain_loop_enabled((aux&2)?true:false);
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p_instr->get_pan_envelope()->set_loop_enabled((aux&4)?true:false);
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/* +239 */ aux=file->get_dword(); // sadly, cant use those
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/* +241 */ p_instr->set_volume_fadeout( file->get_word() >> 4 );
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/* +243 */ aux=file->get_word(); // reserved!
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for (int j=0;j<volpoints;j++) {
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int ofs=volenv[j*2];
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int val=volenv[j*2+1];
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p_instr->get_volume_envelope()->add_position(ofs,val);
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}
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//make sure minimum is 2
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while (p_instr->get_volume_envelope()->get_node_count()<2) {
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p_instr->get_volume_envelope()->add_position( p_instr->get_volume_envelope()->get_node_count()*20,64 );
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}
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for (int j=0;j<panpoints;j++) {
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int ofs=panenv[j*2];
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int val=panenv[j*2+1];
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p_instr->get_pan_envelope()->add_position(ofs,val-32);
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}
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//make sure minimum is 2
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while (p_instr->get_pan_envelope()->get_node_count()<2) {
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p_instr->get_pan_envelope()->add_position( p_instr->get_pan_envelope()->get_node_count()*20,0 );
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}
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p_instr->get_volume_envelope()->set_loop_begin(vol_loop_begin);
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p_instr->get_volume_envelope()->set_loop_end(vol_loop_end);
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p_instr->get_volume_envelope()->set_sustain_loop_end(vol_sustain_loop);
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p_instr->get_volume_envelope()->set_sustain_loop_begin(vol_sustain_loop);
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p_instr->get_pan_envelope()->set_loop_begin(pan_loop_begin);
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p_instr->get_pan_envelope()->set_loop_end(pan_loop_end);
|
|
p_instr->get_pan_envelope()->set_sustain_loop_end(pan_sustain_loop);
|
|
p_instr->get_pan_envelope()->set_sustain_loop_begin(pan_sustain_loop);
|
|
|
|
|
|
if (!p_xi) {
|
|
|
|
if ((file->get_pos()-p_cpos)<p_hsize) {
|
|
|
|
uint8_t junkbuster[500];
|
|
|
|
//printf("extra junk XM instrument in header! hsize is %i, extra junk: %i\n",p_hsize,(file->get_pos()-p_cpos));
|
|
//printf("extra: %i\n",p_hsize-(file->get_pos()-p_cpos));
|
|
file->get_byte_array((uint8_t*)junkbuster,p_hsize-(file->get_pos()-p_cpos));
|
|
}
|
|
|
|
sampnum=p_sampnum;
|
|
} else {
|
|
|
|
uint8_t junkbuster[500];
|
|
file->get_byte_array((uint8_t*)junkbuster,20); //14 bytes?
|
|
|
|
sampnum=file->get_word();
|
|
|
|
}
|
|
|
|
|
|
CPSampleManager *sm=CPSampleManager::get_singleton();
|
|
|
|
/*SAMPLE!!*/
|
|
|
|
for (int j=0;j<sampnum;j++) {
|
|
|
|
if (j>16) ABORT_LOAD;
|
|
|
|
|
|
int s_idx=-1;
|
|
for (int s=0;s<CPSong::MAX_SAMPLES;s++) {
|
|
|
|
if (song->get_sample(s)->get_sample_data().is_null()) {
|
|
//empty sample!
|
|
s_idx=s;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (s_idx==-1) ABORT_LOAD;
|
|
//printf("free sample: %i\n",s_idx);
|
|
|
|
|
|
CPSample& sample=*song->get_sample(s_idx);
|
|
|
|
int sample_size=file->get_dword();
|
|
int tmp_loop_begin=file->get_dword();
|
|
|
|
int tmp_loop_end=file->get_dword();
|
|
|
|
sample.set_default_volume(file->get_byte());
|
|
|
|
uint8_t ftb=file->get_byte();
|
|
int8_t *fts=(int8_t*)&ftb;
|
|
int finetune=*fts;
|
|
uint32_t flags=file->get_byte();
|
|
|
|
if (flags&16) { // is 16 bits.. at flag 16.. fun :)
|
|
|
|
tmp_loop_end/=2;
|
|
tmp_loop_begin/=2;
|
|
sample_size/=2;
|
|
}
|
|
|
|
|
|
CPSample_ID sample_data=sm->create( flags&16, false, sample_size );
|
|
|
|
sample.set_sample_data(sample_data);
|
|
sm->set_loop_begin(sample_data,tmp_loop_begin);
|
|
sm->set_loop_end(sample_data,tmp_loop_end+tmp_loop_begin);
|
|
|
|
sm->set_loop_type( sample_data, (flags&3)?( (flags&2) ? CP_LOOP_BIDI : CP_LOOP_FORWARD ):CP_LOOP_NONE );
|
|
|
|
|
|
|
|
sample.set_pan_enabled(true);
|
|
sample.set_pan(file->get_byte()*64/255);
|
|
uint8_t noteb=file->get_byte();
|
|
int8_t *notes=(int8_t*)¬eb;
|
|
int note_offset=*notes;
|
|
note_offset+=48;
|
|
//note_offset+=60;
|
|
|
|
|
|
|
|
//int linear_period=10*12*16*4 - (note_offset)*16*4 - finetune/2;
|
|
//int freq=(int)(8363*pow(2.0,(double)(6*12*16*4 - linear_period) / (double)(12*16*4)));
|
|
|
|
//sm->set_c5_freq( sample_data, freq);
|
|
sm->set_c5_freq( sample_data, CPTables::get_linear_frequency(CPTables::get_linear_period(note_offset<<1,finetune)) );
|
|
//printf("NOTE %i,fine %i\n",note_offset,finetune);
|
|
|
|
char auxb;
|
|
auxb=file->get_byte(); //reserved?
|
|
file->get_byte_array((uint8_t*)instrname,22);
|
|
sample.set_name(instrname);
|
|
|
|
sample_index[j]=s_idx;
|
|
}
|
|
|
|
/*SAMPLE __DATA__!!*/
|
|
|
|
for (int j=0;j<sampnum;j++) {
|
|
|
|
if (sample_index[j]==-1) continue;
|
|
|
|
CPSample *sample=song->get_sample(sample_index[j]);
|
|
CPSample_ID sid=sample->get_sample_data();
|
|
|
|
sm->lock_data(sid);
|
|
|
|
void*dataptr=sm->get_data(sid);
|
|
|
|
if (sm->is_16bits( sid)) {
|
|
|
|
int16_t old=0;
|
|
|
|
|
|
for (int k=0;k<sm->get_size(sid);k++) {
|
|
|
|
int16_t newsample;
|
|
int16_t sampleval=file->get_word();
|
|
newsample=sampleval+old;
|
|
old=newsample;
|
|
|
|
((int16_t*)dataptr)[k]=newsample;
|
|
//sm->set_data( sid, k, newsample );
|
|
}
|
|
} else {
|
|
|
|
int8_t old=0;
|
|
|
|
|
|
for (int k=0;k<sm->get_size(sid);k++) {
|
|
|
|
int8_t newsample;
|
|
int8_t sampleval=file->get_byte();
|
|
newsample=sampleval+old;
|
|
old=newsample;
|
|
|
|
((int8_t*)dataptr)[k]=newsample;
|
|
|
|
//sm->set_data( sid, k, (int16_t)newsample << 8 );
|
|
|
|
}
|
|
}
|
|
|
|
sm->unlock_data(sid);
|
|
|
|
}
|
|
|
|
for (int j=0;j<96;j++) {
|
|
|
|
int val=notenumb[j];
|
|
if ((val<0) || (val>15)) continue;
|
|
else val=sample_index[val];
|
|
if (val==-1) continue;
|
|
p_instr->set_sample_number( 12+j,val );
|
|
}
|
|
|
|
|
|
return FILE_OK;
|
|
}
|
|
|
|
|
|
|
|
CPLoader::Error CPLoader_XM::load_sample(const char *p_file,CPSample *p_sample) {
|
|
|
|
return FILE_UNRECOGNIZED;
|
|
}
|
|
|
|
|
|
/* Compute CPInstrument Info */
|
|
CPLoader::Error CPLoader_XM::load_instrument(const char *p_file,CPSong *p_song,int p_instr_idx) {
|
|
|
|
if ( file->open(p_file,CPFileAccessWrapper::READ) ) return FILE_CANNOT_OPEN;
|
|
//int i;
|
|
song=p_song;
|
|
CPInstrument& instr=*p_song->get_instrument( p_instr_idx );
|
|
int aux;
|
|
|
|
|
|
char buffer[500];
|
|
file->get_byte_array((uint8_t*)buffer,0x15);
|
|
buffer[8]=0;
|
|
if ( buffer[0]!='E' ||
|
|
buffer[1]!='x' ||
|
|
buffer[2]!='t' ||
|
|
buffer[3]!='e' ||
|
|
buffer[4]!='n' ||
|
|
buffer[5]!='d' ||
|
|
buffer[6]!='e' ||
|
|
buffer[7]!='d') {
|
|
file->close();
|
|
return FILE_UNRECOGNIZED;
|
|
}
|
|
|
|
file->get_byte_array((uint8_t*)buffer,0x16);
|
|
buffer[0x16]=0;
|
|
instr.set_name(buffer);
|
|
aux=file->get_byte(); //says ignore ti
|
|
/*if(aux!=0x1a) { I'm not sure. this is supposed to be ignored...
|
|
|
|
file->close();
|
|
return FILE_UNRECOGNIZED;
|
|
} */
|
|
|
|
file->get_byte_array((uint8_t*)buffer,0x14); //somethingaboutthename
|
|
aux=file->get_word(); //version or blahblah
|
|
|
|
if (load_instrument_internal(&instr,true,0,0)) {
|
|
|
|
file->close();
|
|
return FILE_CORRUPTED;
|
|
}
|
|
|
|
file->close(); //ook, we got it..
|
|
|
|
|
|
return FILE_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
CPLoader_XM::CPLoader_XM(CPFileAccessWrapper *p_file){
|
|
|
|
file=p_file;
|
|
}
|
|
CPLoader_XM::~CPLoader_XM(){
|
|
}
|
|
|