378 lines
9.8 KiB
C++
378 lines
9.8 KiB
C++
/*************************************************************************/
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/* cp_loader_s3m.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) 2007-2017 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_s3m.h"
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#define BITBOOL(m_exp) ((m_exp) ? 1 : 0)
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CPLoader::Error CPLoader_S3M::load_header() {
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int i;
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file->get_byte_array((uint8_t *)header.songname, 28);
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header.t1a = file->get_byte();
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header.type = file->get_byte();
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file->get_byte_array((uint8_t *)header.unused1, 2);
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header.ordnum = file->get_word();
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header.insnum = file->get_word();
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header.patnum = file->get_word();
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header.flags = file->get_word();
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header.tracker = file->get_word();
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header.fileformat = file->get_word();
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file->get_byte_array((uint8_t *)header.scrm, 4);
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header.scrm[4] = 0;
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if (header.scrm[0] != 'S' || header.scrm[1] != 'C' || header.scrm[2] != 'R' || header.scrm[3] != 'M')
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return FILE_UNRECOGNIZED;
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header.mastervol = file->get_byte();
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header.initspeed = file->get_byte();
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header.inittempo = file->get_byte();
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header.mastermult = file->get_byte();
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header.ultraclick = file->get_byte();
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header.pantable = file->get_byte();
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file->get_byte_array((uint8_t *)header.unused2, 8);
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header.special = file->get_word();
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file->get_byte_array((uint8_t *)header.channels, 32);
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file->get_byte_array((uint8_t *)header.orderlist, header.ordnum);
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header.scrm[4] = 0;
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if (header.scrm[0] != 'S' || header.scrm[1] != 'C' || header.scrm[2] != 'R' || header.scrm[3] != 'M') //again?
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return FILE_UNRECOGNIZED;
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//sample parapointers
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for (i = 0; i < header.insnum; i++) {
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int parapointer;
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parapointer = file->get_word();
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parapointer = (parapointer * 16);
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sample_parapointers[i] = parapointer;
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}
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//pattern
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for (i = 0; i < header.patnum; i++) {
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int parapointer;
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parapointer = file->get_word();
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parapointer = (parapointer * 16);
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pattern_parapointers[i] = parapointer;
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}
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if (header.pantable == 252) {
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file->get_byte_array((uint8_t *)header.pannings, 32);
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}
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return FILE_OK;
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}
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void CPLoader_S3M::set_header() {
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song->set_name(header.songname);
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// song->variables.filename=
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song->set_row_highlight_minor(4);
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song->set_row_highlight_major(16);
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song->set_mixing_volume(header.mastervol);
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song->set_linear_slides(false);
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song->set_old_effects(!(header.flags & 64));
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song->set_compatible_gxx(true);
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song->set_global_volume(header.mastermult);
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song->set_speed(header.initspeed);
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song->set_tempo(header.inittempo);
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//[TODO] Set Panning Positions.. ?
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for (int i = 0; i < header.ordnum; i++)
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song->set_order(i, header.orderlist[i]);
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}
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CPLoader::Error CPLoader_S3M::load_sample(CPSample *p_sample) {
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int type = file->get_byte();
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char filename[13];
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file->get_byte_array((uint8_t *)filename, 12);
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filename[12] = 0;
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uint32_t samplepos = (uint32_t)file->get_byte() << 16;
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samplepos |= file->get_word();
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samplepos *= 16;
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// printf("sample at %i\n",samplepos);
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/**/
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int sample_size = file->get_dword();
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int loop_begin = file->get_dword();
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int loop_end = file->get_dword();
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int def_volume = file->get_byte();
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;
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int dsk = file->get_byte();
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int pack = file->get_byte();
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int flags = file->get_byte();
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int c2speed = file->get_dword();
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file->get_dword(); //useless crap
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file->get_dword();
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file->get_dword();
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char name[29];
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file->get_byte_array((uint8_t *)name, 28);
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name[28] = 0;
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p_sample->set_default_volume(def_volume);
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p_sample->set_name(name);
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char scrs[5];
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file->get_byte_array((uint8_t *)scrs, 4);
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scrs[4] = 0;
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bool data_is_16bits = flags & 4;
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bool data_is_stereo = flags & 2;
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if (type == 0) {
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//empty sample
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return FILE_OK;
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}
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if ((type != 1) || scrs[0] != 'S' || scrs[1] != 'C' || scrs[2] != 'R' || scrs[3] != 'S') {
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// printf("type: %i, %c%c%c%c\n",type,scrs[0],scrs[1],scrs[2],scrs[3]);
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CP_PRINTERR("Not an S3M CPSample!");
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return FILE_CORRUPTED;
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}
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//p_sample->data.set_c5_freq(p_sample->c2spd<<1);
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file->seek(samplepos);
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int real_sample_size = sample_size << BITBOOL(data_is_16bits);
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real_sample_size <<= BITBOOL(data_is_stereo);
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CPSampleManager *sm = CPSampleManager::get_singleton();
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CPSample_ID id = sm->create(data_is_16bits, data_is_stereo, sample_size);
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if (id.is_null())
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return FILE_OUT_OF_MEMORY;
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sm->lock_data(id);
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void *dataptr = sm->get_data(id);
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int chans = (data_is_stereo ? 2 : 1);
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for (int c = 0; c < chans; c++) {
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for (int i = 0; i < sample_size; i++) {
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if (data_is_16bits) {
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uint16_t s = file->get_word();
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s -= 32768; //toggle sign
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int16_t *v = (int16_t *)&s;
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((int16_t *)dataptr)[i * chans + c] = *v;
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} else {
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int8_t *v;
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uint8_t s = file->get_byte();
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s -= 128; //toggle sign
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v = (int8_t *)&s;
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((int8_t *)dataptr)[i * chans + c] = *v;
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}
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}
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}
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sm->unlock_data(id);
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sm->set_loop_begin(id, loop_begin);
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sm->set_loop_end(id, loop_end);
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sm->set_loop_type(id, (flags & 1) ? CP_LOOP_FORWARD : CP_LOOP_NONE);
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sm->set_c5_freq(id, c2speed << 1);
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p_sample->set_sample_data(id);
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/* Scream tracker previous to 3.10 seems to be buggy, as in, wont save what is after the sample loop, including the loop end point. Because of this I must fix it by habd */
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if (flags & 1) {
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for (int c = 0; c < (data_is_stereo ? 2 : 1); c++) {
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sm->set_data(id, loop_end, sm->get_data(id, loop_begin, c), c);
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}
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}
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return FILE_OK;
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}
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CPLoader::Error CPLoader_S3M::load_pattern(CPPattern *p_pattern) {
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int row = 0, flag, ch;
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CPNote n;
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int length, accum = 0;
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length = file->get_word();
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p_pattern->set_length(64);
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/* clear pattern data */
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while ((row < 64) && (accum <= length)) {
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flag = file->get_byte();
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accum++;
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n.clear();
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if (flag) {
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// ch=remap[flag&31];
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// ch=remap[flag&31];
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// if(ch!=-1)
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// n=s3mbuf[(64U*ch)+row];
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// else
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// n=&dummy;
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ch = flag & 31;
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if (flag & 32) {
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n.note = file->get_byte();
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if (n.note == 255) {
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n.note = CPNote::EMPTY;
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} else if (n.note == 254) {
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n.note = CPNote::CUT;
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} else {
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n.note = ((n.note >> 4) * 12) + (n.note & 0xF);
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}
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n.instrument = file->get_byte() - 1;
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accum += 2;
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}
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if (flag & 64) {
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n.volume = file->get_byte();
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if (n.volume > 64) n.volume = 64;
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accum++;
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}
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if (flag & 128) {
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n.command = file->get_byte() - 1;
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n.parameter = file->get_byte();
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accum += 2;
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}
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p_pattern->set_note(ch, row, n);
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} else
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row++;
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}
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return FILE_OK;
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}
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CPLoader::Error CPLoader_S3M::load_sample(const char *p_file, CPSample *p_sample) {
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return FILE_UNRECOGNIZED;
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}
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CPLoader::Error CPLoader_S3M::load_instrument(const char *p_file, CPSong *p_song, int p_instr_idx) {
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return FILE_UNRECOGNIZED;
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}
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CPLoader::Error CPLoader_S3M::load_samples() {
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int i;
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for (i = 0; i < header.insnum; i++) {
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file->seek(sample_parapointers[i]);
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load_sample(song->get_sample(i));
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sample_count++;
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}
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return FILE_OK;
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}
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CPLoader::Error CPLoader_S3M::load_patterns() {
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int i;
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Error err;
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for (i = 0; i < header.patnum; i++) {
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file->seek(pattern_parapointers[i]);
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err = load_pattern(song->get_pattern(i));
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CP_ERR_COND_V(err, err);
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pattern_count++;
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}
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return FILE_OK;
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}
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CPLoader::Error CPLoader_S3M::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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//printf("Can't open file! %s\n",p_file);
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return FILE_CANNOT_OPEN;
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};
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sample_count = 0;
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pattern_count = 0;
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//printf("LOADING HEADER\n");
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CPLoader::Error err;
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if ((err = load_header())) {
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file->close();
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CP_ERR_COND_V(err, err);
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}
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song->reset(); //file type recognized, reset song!
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set_header();
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//printf("LOADING SAMPLES\n");
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if ((err = load_samples())) {
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file->close();
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CP_ERR_COND_V(err, err);
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}
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//printf("LOADING PATTERNS\n");
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if ((err = load_patterns())) {
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file->close();
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return err;
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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_S3M::CPLoader_S3M(CPFileAccessWrapper *p_file) {
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file = p_file;
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}
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CPLoader_S3M::~CPLoader_S3M() {
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}
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