summaryrefslogtreecommitdiff
path: root/modules/chibi/cp_loader_it_samples.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'modules/chibi/cp_loader_it_samples.cpp')
-rw-r--r--modules/chibi/cp_loader_it_samples.cpp620
1 files changed, 0 insertions, 620 deletions
diff --git a/modules/chibi/cp_loader_it_samples.cpp b/modules/chibi/cp_loader_it_samples.cpp
deleted file mode 100644
index c736c99c0f..0000000000
--- a/modules/chibi/cp_loader_it_samples.cpp
+++ /dev/null
@@ -1,620 +0,0 @@
-/*************************************************************************/
-/* cp_loader_it_samples.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* http://www.godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2017 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"
-#include "cp_sample.h"
-
-struct AuxSampleData {
-
-
- uint32_t fileofs;
- uint32_t c5spd;
- uint32_t length;
- uint32_t loop_begin;
- uint32_t loop_end;
- bool loop_enabled;
- bool pingpong_enabled;
- bool is16bit;
- bool stereo;
- bool exists;
- bool compressed;
-
-};
-
-
-enum IT_Sample_Flags {
-
- IT_SAMPLE_EXISTS=1,
- IT_SAMPLE_16BITS=2,
- IT_SAMPLE_STEREO=4,
- IT_SAMPLE_COMPRESSED=8,
- IT_SAMPLE_LOOPED=16,
- IT_SAMPLE_SUSTAIN_LOOPED=32,
- IT_SAMPLE_LOOP_IS_PINGPONG=64,
- IT_SAMPLE_SUSTAIN_LOOP_IS_PINGPONG=128
-};
-
-
-CPLoader::Error CPLoader_IT::load_sample(CPSample *p_sample) {
-
-
- AuxSampleData aux_sample_data;
-
- 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]!='S') {
-
- //CP_PRINTERR("IT CPLoader CPSample: Failed Identifier");
- return FILE_UNRECOGNIZED;
- }
-
-
- // Ignore deprecated 8.3 filename
- for (int i=0;i<12;i++) file->get_byte();
-
- file->get_byte(); //ignore zerobyte
-
- p_sample->set_global_volume( file->get_byte() );
-
- /* SAMPLE FLAGS */
- uint8_t flags=file->get_byte();
- aux_sample_data.loop_enabled=flags&IT_SAMPLE_LOOPED;
- aux_sample_data.pingpong_enabled=flags&IT_SAMPLE_LOOP_IS_PINGPONG;
- aux_sample_data.is16bit=flags&IT_SAMPLE_16BITS;
- aux_sample_data.exists=flags&IT_SAMPLE_EXISTS;
- aux_sample_data.stereo=flags&IT_SAMPLE_STEREO;
- aux_sample_data.compressed=flags&IT_SAMPLE_COMPRESSED;
-
- p_sample->set_default_volume(file->get_byte());
- /* SAMPLE NAME */
- char aux_name[26];
- file->get_byte_array((uint8_t*)aux_name,26);
- p_sample->set_name(aux_name);
-
- // ??
- uint8_t convert_flag=file->get_byte();
- // PAN
- uint8_t pan=file->get_byte();
- p_sample->set_pan( pan&0x7F );
- p_sample->set_pan_enabled( pan & 0x80 );
-
- aux_sample_data.length=file->get_dword();
-
-
- aux_sample_data.loop_begin= file->get_dword();
- aux_sample_data.loop_end= file->get_dword();
- aux_sample_data.c5spd=file->get_dword();
- /*p_sample->data.set_sustain_loop_begin=*/file->get_dword();
- /*p_sample->data.sustain_loop_end=*/file->get_dword();
- aux_sample_data.fileofs=file->get_dword();
- p_sample->set_vibrato_speed( file->get_byte() );
- p_sample->set_vibrato_depth( file->get_byte() );
- p_sample->set_vibrato_rate( file->get_byte() );
- switch( file->get_byte() ) {
- /* Vibrato Wave: 0=sine, 1=rampdown, 2=square, 3=random */
- case 0: p_sample->set_vibrato_type( CPSample::VIBRATO_SINE ); break;
- case 1: p_sample->set_vibrato_type( CPSample::VIBRATO_SAW ); break;
- case 2: p_sample->set_vibrato_type( CPSample::VIBRATO_SQUARE ); break;
- case 3: p_sample->set_vibrato_type( CPSample::VIBRATO_RANDOM ); break;
- default: p_sample->set_vibrato_type( CPSample::VIBRATO_SINE ); break;
- }
-
- //printf("Name %s - Flags: fileofs :%i - c5spd %i - len %i 16b %i - data?: %i\n",p_sample->get_name(),aux_sample_data.fileofs,aux_sample_data.c5spd, aux_sample_data.length, aux_sample_data.is16bit,aux_sample_data.exists);
- CPSample_ID samp_id;
-
- if (aux_sample_data.exists) {
- samp_id=load_sample_data(aux_sample_data);
- CPSampleManager::get_singleton()->set_c5_freq(samp_id,aux_sample_data.c5spd);
- CPSampleManager::get_singleton()->set_loop_begin( samp_id,aux_sample_data.loop_begin );
- CPSampleManager::get_singleton()->set_loop_end( samp_id,aux_sample_data.loop_end );
- CPSample_Loop_Type loop_type=aux_sample_data.loop_enabled?( aux_sample_data.pingpong_enabled? CP_LOOP_BIDI: CP_LOOP_FORWARD):CP_LOOP_NONE;
- CPSampleManager::get_singleton()->set_loop_end( samp_id,aux_sample_data.loop_end );
- CPSampleManager::get_singleton()->set_loop_type( samp_id, loop_type);
-
- }
-
- //printf("Loaded id is null?: %i\n",samp_id.is_null());
- p_sample->set_sample_data(samp_id);
- if (!samp_id.is_null()) {
-
- //printf("Loaded ID: stereo: %i len %i 16bit %i\n",CPSampleManager::get_singleton()->is_stereo(samp_id), CPSampleManager::get_singleton()->get_size( samp_id), CPSampleManager::get_singleton()->is_16bits( samp_id) );
- }
-
- CP_ERR_COND_V( file->eof_reached(),FILE_CORRUPTED );
- CP_ERR_COND_V( file->get_error(),FILE_CORRUPTED );
-
- return FILE_OK;
-
-}
-
-CPSample_ID CPLoader_IT::load_sample_data(AuxSampleData& p_sample_data) {
-
-
- int aux_sample_properties = (p_sample_data.is16bit?IT_SAMPLE_16BITS:0)|(p_sample_data.compressed?IT_SAMPLE_COMPRESSED:0)|(p_sample_data.stereo?IT_SAMPLE_STEREO:0);
-
- file->seek(p_sample_data.fileofs);
-
- CPSampleManager *sm=CPSampleManager::get_singleton();
-
- CPSample_ID id;
-
- switch (aux_sample_properties) {
-
- case (0): // 8 bits, mono
- case (IT_SAMPLE_16BITS): // 16 bits mono
- case (IT_SAMPLE_STEREO): // 8 bits stereo
- case (IT_SAMPLE_16BITS|IT_SAMPLE_STEREO): { // 16 bits mono
-
- id=sm->create(p_sample_data.is16bit,p_sample_data.stereo,p_sample_data.length);
- if (id.is_null())
- break;
-
- sm->lock_data(id);
-
- int16_t *ptr16 = (int16_t*)sm->get_data(id);
- int8_t *ptr8=(int8_t*)ptr16;
-
- int chans=p_sample_data.stereo?2:1;
-
- if (p_sample_data.is16bit) {
-
- for (int c=0;c<chans;c++) {
-
- for (int i=0;i<p_sample_data.length;i++) {
-
- ptr16[i*chans+c]=file->get_word();
- }
- }
- } else {
-
- for (int c=0;c<chans;c++) {
-
- for (int i=0;i<p_sample_data.length;i++) {
-
- ptr8[i*chans+c]=file->get_byte();
- }
- }
-
- }
-
- sm->unlock_data(id);
-
- } break;
- case (IT_SAMPLE_COMPRESSED): { // 8 bits compressed
-
-
- id=sm->create(false,false,p_sample_data.length);
- if (id.is_null())
- break;
- sm->lock_data(id);
-
- if ( load_sample_8bits_IT_compressed((void*)sm->get_data( id),p_sample_data.length) ) {
-
- sm->unlock_data(id);
- sm->destroy(id);
-
- break;
- }
-
- sm->unlock_data(id);
-
-
- } break;
- case (IT_SAMPLE_16BITS|IT_SAMPLE_COMPRESSED): { // 16 bits compressed
-
-
- id=sm->create(true,false,p_sample_data.length);
- if (id.is_null())
- break;
- sm->lock_data(id);
-
- if ( load_sample_16bits_IT_compressed((void*)sm->get_data(id),p_sample_data.length) ) {
-
- sm->unlock_data(id);
- sm->destroy(id);
- break;
- }
-
- sm->unlock_data(id);
-
- } break;
- default: {
-
- // I dont know how to handle stereo compressed, does that exist?
- } break;
-
- }
-
-
- return id;
-}
-
-
-CPLoader::Error CPLoader_IT::load_samples() {
-
- for (int i=0;i<header.smpnum;i++) {
-
- //seek to sample
- file->seek(0xC0+header.ordnum+header.insnum*4+i*4);
-
- uint32_t final_location=file->get_dword();
- file->seek( final_location );
-
-
- Error err=load_sample(song->get_sample(i));
- CP_ERR_COND_V(err,err);
-
- }
-
- if (file->eof_reached() || file->get_error())
- return FILE_CORRUPTED;
-
- return FILE_OK;
-}
-/* * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE
-
- -The following sample decompression code is based on xmp's code.(http://xmp.helllabs.org) which is based in openCP code.
-
-* NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE * NOTICE */
-
-uint32_t CPLoader_IT::read_n_bits_from_IT_compressed_block (uint8_t p_bits_to_read) {
-
- uint32_t aux_return_value;
- uint32_t val;
-
- uint8_t *buffer=(uint8_t*)source_position;
- if ( p_bits_to_read <= source_remaining_bits ) {
-
- val=buffer[3];
- val<<=8;
- val|=buffer[2];
- val<<=8;
- val|=buffer[1];
- val<<=8;
- val|=buffer[0];
-
- aux_return_value = val & ((1 << p_bits_to_read) - 1);
- val >>= p_bits_to_read;
- source_remaining_bits -= p_bits_to_read;
-
- buffer[3]=val>>24;
- buffer[2]=(val>>16)&0xFF;
- buffer[1]=(val>>8)&0xFF;
- buffer[0]=(val)&0xFF;
-
- } else {
- aux_return_value=buffer[3];
- aux_return_value<<=8;
- aux_return_value|=buffer[2];
- aux_return_value<<=8;
- aux_return_value|=buffer[1];
- aux_return_value<<=8;
- aux_return_value|=buffer[0];
-
- uint32_t nbits = p_bits_to_read - source_remaining_bits;
- source_position++;
-
- buffer+=4;
- val=buffer[3];
- val<<=8;
- val|=buffer[2];
- val<<=8;
- val|=buffer[1];
- val<<=8;
- val|=buffer[0];
- aux_return_value |= ((val & ((1 << nbits) - 1)) << source_remaining_bits);
- val >>= nbits;
- source_remaining_bits = 32 - nbits;
- buffer[3]=val>>24;
- buffer[2]=(val>>16)&0xFF;
- buffer[1]=(val>>8)&0xFF;
- buffer[0]=(val)&0xFF;
-
- }
-
- return aux_return_value;
-}
-
-bool CPLoader_IT::read_IT_compressed_block (bool p_16bits) {
-
- uint16_t size;
-
- size=file->get_word();
-
- if (file->eof_reached() || file->get_error()) return true;
-
- pat_data = (uint8_t*)CP_ALLOC( 4* ((size >> 2) + 2) );
- if (!pat_data)
- return true;
-
-
- source_buffer=(uint32_t*)pat_data;
- file->get_byte_array((uint8_t*)source_buffer,size);
-
- if (file->eof_reached() || file->get_error()) {
-
- free_IT_compressed_block();
- return true;
- }
-
- source_position = source_buffer;
- source_remaining_bits = 32;
-
- return false;
-}
-
-void CPLoader_IT::free_IT_compressed_block () {
-
-
- if (pat_data) {
- CP_FREE(pat_data);
- pat_data=NULL;
- }
-
-}
-
-bool CPLoader_IT::load_sample_8bits_IT_compressed(void *p_dest_buffer,int p_buffsize) {
-
- int8_t *dest_buffer; /* destination buffer which will be returned */
- uint16_t block_length; /* length of compressed data block in samples */
- uint16_t block_position; /* position in block */
- uint8_t bit_width; /* actual "bit width" */
- uint16_t aux_value; /* value read from file to be processed */
- int8_t d1, d2; /* integrator buffers (d2 for it2.15) */
- int8_t *dest_position; /* position in output buffer */
- int8_t v; /* sample value */
- bool it215; // is this an it215 module?
-
- dest_buffer = (int8_t *) p_dest_buffer;
-
- if (dest_buffer==NULL)
- return true;
-
- for (int i=0;i<p_buffsize;i++)
- dest_buffer[i]=0;
-
-
- dest_position = dest_buffer;
-
- it215=(header.cmwt==0x215);
-
- /* now unpack data till the dest buffer is full */
-
- while (p_buffsize) {
- /* read a new block of compressed data and reset variables */
- if ( read_IT_compressed_block(false) ) {
- CP_PRINTERR("Out of memory decompressing IT CPSample");
- return true;
- }
-
-
- block_length = (p_buffsize < 0x8000) ? p_buffsize : 0x8000;
-
- block_position = 0;
-
- bit_width = 9; /* start with width of 9 bits */
-
- d1 = d2 = 0; /* reset integrator buffers */
-
- /* now uncompress the data block */
- while ( block_position < block_length ) {
-
- aux_value = read_n_bits_from_IT_compressed_block(bit_width); /* read bits */
-
- if ( bit_width < 7 ) { /* method 1 (1-6 bits) */
-
- if ( aux_value == (1 << (bit_width - 1)) ) { /* check for "100..." */
-
- aux_value = read_n_bits_from_IT_compressed_block(3) + 1; /* yes -> read new width; */
- bit_width = (aux_value < bit_width) ? aux_value : aux_value + 1;
- /* and expand it */
- continue; /* ... next value */
- }
-
- } else if ( bit_width < 9 ) { /* method 2 (7-8 bits) */
-
- uint8_t border = (0xFF >> (9 - bit_width)) - 4;
- /* lower border for width chg */
-
- if ( aux_value > border && aux_value <= (border + 8) ) {
-
- aux_value -= border; /* convert width to 1-8 */
- bit_width = (aux_value < bit_width) ? aux_value : aux_value + 1;
- /* and expand it */
- continue; /* ... next value */
- }
-
-
- } else if ( bit_width == 9 ) { /* method 3 (9 bits) */
-
- if ( aux_value & 0x100 ) { /* bit 8 set? */
-
- bit_width = (aux_value + 1) & 0xff; /* new width... */
- continue; /* ... and next value */
- }
-
- } else { /* illegal width, abort */
-
-
- free_IT_compressed_block();
- CP_PRINTERR("CPSample has illegal BitWidth ");
- return true;
- }
-
- /* now expand value to signed byte */
- if ( bit_width < 8 ) {
-
- uint8_t tmp_shift = 8 - bit_width;
-
- v=(aux_value << tmp_shift);
- v>>=tmp_shift;
-
- } else v = (int8_t) aux_value;
-
- /* integrate upon the sample values */
- d1 += v;
- d2 += d1;
-
- /* ... and store it into the buffer */
- *(dest_position++) = it215 ? d2 : d1;
- block_position++;
-
- }
-
- /* now subtract block lenght from total length and go on */
- free_IT_compressed_block();
- p_buffsize -= block_length;
- }
-
-
- return false;
-}
-
-bool CPLoader_IT::load_sample_16bits_IT_compressed(void *p_dest_buffer,int p_buffsize) {
-
- int16_t *dest_buffer; /* destination buffer which will be returned */
- uint16_t block_length; /* length of compressed data block in samples */
- uint16_t block_position; /* position in block */
- uint8_t bit_width; /* actual "bit width" */
- uint32_t aux_value; /* value read from file to be processed */
- int16_t d1, d2; /* integrator buffers (d2 for it2.15) */
- int16_t *dest_position; /* position in output buffer */
- int16_t v; /* sample value */
-
- bool it215; // is this an it215 module?
-
- dest_buffer = (int16_t *) p_dest_buffer;
-
- if (dest_buffer==NULL)
- return true;
-
- for (int i=0;i<p_buffsize;i++)
- dest_buffer[i]=0;
-
- dest_position = dest_buffer;
-
- it215=(header.cmwt==0x215);
-
-
- while (p_buffsize) {
- /* read a new block of compressed data and reset variables */
- if ( read_IT_compressed_block(true) ) {
-
- return true;
- }
-
-
- block_length = (p_buffsize < 0x4000) ? p_buffsize : 0x4000;
-
- block_position = 0;
-
- bit_width = 17; /* start with width of 9 bits */
-
- d1 = d2 = 0; /* reset integrator buffers */
-
- while ( block_position < block_length ) {
-
- aux_value = read_n_bits_from_IT_compressed_block(bit_width); /* read bits */
-
- if ( bit_width < 7 ) { /* method 1 (1-6 bits) */
-
- if ( (signed)aux_value == (1 << (bit_width - 1)) ) { /* check for "100..." */
-
- aux_value = read_n_bits_from_IT_compressed_block(4) + 1; /* yes -> read new width; */
- bit_width = (aux_value < bit_width) ? aux_value : aux_value + 1;
- /* and expand it */
- continue; /* ... next value */
- }
-
- } else if ( bit_width < 17 ) {
-
- uint16_t border = (0xFFFF >> (17 - bit_width)) - 8;
-
- if ( (int)aux_value > (int)border && (int)aux_value <= ((int)border + 16) ) {
-
- aux_value -= border; /* convert width to 1-8 */
- bit_width = (aux_value < bit_width) ? aux_value : aux_value + 1;
- /* and expand it */
- continue; /* ... next value */
- }
-
-
- } else if ( bit_width == 17 ) {
-
- if ( aux_value & 0x10000 ) { /* bit 8 set? */
-
- bit_width = (aux_value + 1) & 0xff; /* new width... */
- continue; /* ... and next value */
- }
-
- } else { /* illegal width, abort */
-
- CP_PRINTERR("CPSample has illegal BitWidth ");
-
- free_IT_compressed_block();
-
- return true;
- }
-
- /* now expand value to signed byte */
- if ( bit_width < 16 ) {
-
- uint8_t tmp_shift = 16 - bit_width;
-
- v=(aux_value << tmp_shift);
- v>>=tmp_shift;
-
- } else v = (int16_t) aux_value;
-
- /* integrate upon the sample values */
- d1 += v;
- d2 += d1;
-
- /* ... and store it into the buffer */
- *(dest_position++) = it215 ? d2 : d1;
- block_position++;
-
- }
-
- /* now subtract block lenght from total length and go on */
- free_IT_compressed_block();
- p_buffsize -= block_length;
- }
-
-
- return false;
-
-}
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 15:28:41 +0000