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Diffstat (limited to 'modules/chibi/cp_loader_it_instruments.cpp')
-rw-r--r--modules/chibi/cp_loader_it_instruments.cpp224
1 files changed, 224 insertions, 0 deletions
diff --git a/modules/chibi/cp_loader_it_instruments.cpp b/modules/chibi/cp_loader_it_instruments.cpp
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+++ b/modules/chibi/cp_loader_it_instruments.cpp
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+/*************************************************************************/
+/* cp_loader_it_instruments.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* http://www.godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
+/* */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the */
+/* "Software"), to deal in the Software without restriction, including */
+/* without limitation the rights to use, copy, modify, merge, publish, */
+/* distribute, sublicense, and/or sell copies of the Software, and to */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions: */
+/* */
+/* The above copyright notice and this permission notice shall be */
+/* included in all copies or substantial portions of the Software. */
+/* */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
+/*************************************************************************/
+
+#include "cp_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;
+}
+
+
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