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dbbeb656f8
* [Audio 8/?] Check-in handwritten sequences, build sequences, automate various sfx arrays * Fix whitespace in aseq.h * Fix sequence 0 sfx id generator * Suggested changes, adjust some MML syntax and add more instruction descriptions * Correct some formatting in aseq.h * Add the dir of the input .seq file to the list of includes to sequence assembling so that assembler-level includes like .include or .incbin work intuitively * aseq.h tweaks * MM review suggestions, aseq.h adjustments
634 lines
21 KiB
C
634 lines
21 KiB
C
/**
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* SPDX-FileCopyrightText: Copyright (C) 2024 ZeldaRET
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <regex.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "samplebank.h"
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#include "soundfont.h"
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#include "xml.h"
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#include "elf32.h"
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#include "util.h"
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/* Samplebanks */
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static int
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tablegen_samplebanks(const char *sb_hdr_out, const char **samplebanks_paths, int num_samplebank_files)
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{
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// Read in all samplebank xml files
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samplebank *samplebanks = malloc(num_samplebank_files * sizeof(samplebank));
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for (int i = 0; i < num_samplebank_files; i++) {
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const char *path = samplebanks_paths[i];
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size_t pathlen = strlen(path);
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if (!str_endswith(path, pathlen, ".xml"))
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error("Not an xml file? (\"%s\")", path);
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xmlDocPtr document = xmlReadFile(path, NULL, XML_PARSE_NONET);
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if (document == NULL)
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error("Could not read xml file \"%s\"", path);
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read_samplebank_xml(&samplebanks[i], document);
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}
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// Find largest index, including pointer indices
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size_t index_max = 0;
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for (int i = 0; i < num_samplebank_files; i++) {
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samplebank *sb = &samplebanks[i];
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unsigned index = sb->index;
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if (index > index_max)
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index_max = index;
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for (size_t j = 0; j < sb->num_pointers; j++) {
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index = sb->pointer_indices[j];
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if (index > index_max)
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index_max = index;
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}
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}
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size_t indices_len = index_max + 1;
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// Classify indices and check that no two indices are the same
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#define INDEX_NONE 0
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#define INDEX_NOPOINTER 1
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#define INDEX_POINTER 2
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struct sb_index_info {
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const char *name;
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unsigned index_type;
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unsigned ptr_index;
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const char *medium;
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const char *cache_policy;
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};
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struct sb_index_info *index_info = calloc(indices_len, sizeof(struct sb_index_info));
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for (int i = 0; i < num_samplebank_files; i++) {
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samplebank *sb = &samplebanks[i];
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unsigned index = sb->index;
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if (index_info[index].index_type != INDEX_NONE)
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error("Overlapping samplebank indices, saw index %u more than once", index);
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index_info[index].index_type = INDEX_NOPOINTER;
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index_info[index].name = sb->name;
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index_info[index].medium = sb->medium;
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index_info[index].cache_policy = sb->cache_policy;
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unsigned real_index = index;
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// Add pointers defined for this bank
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for (size_t j = 0; j < sb->num_pointers; j++) {
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index = sb->pointer_indices[j];
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if (index_info[index].index_type != INDEX_NONE)
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error("Overlapping samplebank indices, saw index %u more than once", index);
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index_info[index].index_type = INDEX_POINTER;
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index_info[index].ptr_index = real_index;
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index_info[index].medium = sb->medium;
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index_info[index].cache_policy = sb->cache_policy;
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}
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}
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// Check that we have no gaps in the indices
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for (size_t i = 0; i < indices_len; i++) {
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if (index_info[i].index_type == INDEX_NONE)
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error("No samplebank for index %lu", i);
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}
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// Emit the table
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FILE *out = fopen(sb_hdr_out, "w");
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if (out == NULL)
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error("Failed to open samplebank header output");
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fprintf(out,
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// clang-format off
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"/**" "\n"
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" * DEFINE_SAMPLE_BANK(name, medium, cachePolicy)" "\n"
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" * DEFINE_SAMPLE_BANK_PTR(index, medium, cachePolicy)" "\n"
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" */" "\n"
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// clang-format on
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);
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for (size_t i = 0; i < indices_len; i++) {
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unsigned index_type = index_info[i].index_type;
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// By this point we shouldn't have any INDEX_NONEs, since it would have been caught before this
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// when we checked for gaps
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assert(index_type == INDEX_NOPOINTER || index_type == INDEX_POINTER);
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if (index_type == INDEX_NOPOINTER) {
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fprintf(out, "DEFINE_SAMPLE_BANK (%s, %s, %s)\n", index_info[i].name, index_info[i].medium,
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index_info[i].cache_policy);
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} else {
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fprintf(out, "DEFINE_SAMPLE_BANK_PTR(%u, %s, %s)\n", index_info[i].ptr_index, index_info[i].medium,
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index_info[i].cache_policy);
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}
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}
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fclose(out);
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free(index_info);
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free(samplebanks);
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return EXIT_SUCCESS;
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}
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/* Soundfonts */
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static int
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validate_samplebank_index(soundfont *sf, samplebank *sb, int ptr_idx)
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{
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if (ptr_idx != -1) {
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// Validate pointer index
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bool found = false;
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for (size_t i = 0; i < sb->num_pointers; i++) {
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if (ptr_idx == sb->pointer_indices[i]) {
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found = true;
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break;
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}
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}
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if (!found)
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warning("In Soundfont %s: Invalid pointer indirect %d for samplebank %s", sf->info.name, ptr_idx, sb->name);
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return ptr_idx;
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} else {
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return sb->index;
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}
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}
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static int
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tablegen_soundfonts(const char *sf_hdr_out, char **soundfonts_paths, int num_soundfont_files)
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{
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soundfont *soundfonts = malloc(num_soundfont_files * sizeof(soundfont));
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int max_index = 0;
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for (int i = 0; i < num_soundfont_files; i++) {
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char *path = soundfonts_paths[i];
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size_t pathlen = strlen(path);
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if (!str_endswith(path, pathlen, ".xml"))
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error("Not an xml file? (\"%s\")", path);
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xmlDocPtr document = xmlReadFile(path, NULL, XML_PARSE_NONET);
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if (document == NULL)
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error("Could not read xml file \"%s\"", path);
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xmlNodePtr root = xmlDocGetRootElement(document);
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if (!strequ(XMLSTR_TO_STR(root->name), "Soundfont"))
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error("Root node must be <Soundfont>");
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soundfont *sf = &soundfonts[i];
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// Transform the xml path into a header include path
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// Assumption: replacing .xml -> .h forms a valid header include path
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path[pathlen - 3] = 'h';
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path[pathlen - 2] = '\0';
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read_soundfont_info(sf, root);
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if (max_index < sf->info.index)
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max_index = sf->info.index;
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}
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struct soundfont_file_info {
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soundfont *soundfont;
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int normal_bank_index;
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int dd_bank_index;
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char *name;
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};
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struct soundfont_file_info *finfo = calloc(max_index + 1, sizeof(struct soundfont_file_info));
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for (int i = 0; i < num_soundfont_files; i++) {
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soundfont *sf = &soundfonts[i];
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// Resolve samplebank indices
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int normal_idx = validate_samplebank_index(sf, &sf->sb, sf->info.pointer_index);
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int dd_idx = 255;
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if (sf->info.bank_path_dd != NULL)
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dd_idx = validate_samplebank_index(sf, &sf->sbdd, sf->info.pointer_index_dd);
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// Add info
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if (finfo[sf->info.index].soundfont != NULL)
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error("Overlapping soundfont indices, saw index %u more than once", sf->info.index);
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finfo[sf->info.index].soundfont = &soundfonts[i];
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finfo[sf->info.index].normal_bank_index = normal_idx;
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finfo[sf->info.index].dd_bank_index = dd_idx;
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finfo[sf->info.index].name = soundfonts_paths[i];
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}
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// Make sure there are no gaps
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for (int i = 0; i < max_index + 1; i++) {
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if (finfo[i].soundfont == NULL)
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error("No soundfont for index %d", i);
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}
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FILE *out = fopen(sf_hdr_out, "w");
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fprintf(out,
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// clang-format off
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"/**" "\n"
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" * DEFINE_SOUNDFONT(name, medium, cachePolicy, sampleBankNormal, "
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"sampleBankDD, nInstruments, nDrums, nSfx)" "\n"
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" */" "\n"
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// clang-format on
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);
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for (int i = 0; i < max_index + 1; i++) {
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soundfont *sf = finfo[i].soundfont;
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fprintf(out,
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// clang-format off
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"#include \"%s\"" "\n"
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"DEFINE_SOUNDFONT(%s, %s, %s, %d, %d, SF%d_NUM_INSTRUMENTS, SF%d_NUM_DRUMS, SF%d_NUM_SFX)" "\n",
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// clang-format on
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finfo[i].name, sf->info.name, sf->info.medium, sf->info.cache_policy, finfo[i].normal_bank_index,
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finfo[i].dd_bank_index, sf->info.index, sf->info.index, sf->info.index);
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}
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fclose(out);
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free(soundfonts);
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free(finfo);
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return EXIT_SUCCESS;
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}
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/* Sequences */
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struct seq_order_entry {
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const char *name;
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const char *enum_name;
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bool isptr;
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};
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struct seq_order {
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size_t num_sequences;
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struct seq_order_entry *entries;
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void *filedata;
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};
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static void
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read_seq_order(struct seq_order *order, const char *path)
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{
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// Read from file, we assume the file has been preprocessed with cpp so that whitespace is collapsed and each line
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// has the form:
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// (name,enum_name) or *(name,enum_name)
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UNUSED size_t data_size;
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char *filedata = util_read_whole_file(path, &data_size);
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// We expect one entry per line, gather the total length
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size_t total_size = 0;
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for (char *p = filedata; *p != '\0'; p++) {
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if (*p == '\n') {
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total_size++;
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} else if (isspace(*p)) {
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// There should be no whitespace in the input file besides newlines
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goto malformed;
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}
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}
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// Alloc entries
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struct seq_order_entry *entries = malloc(total_size * sizeof(struct seq_order_entry));
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enum matchno {
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MATCH_ALL,
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MATCH_PTR,
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MATCH_NAME,
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MATCH_ENUM,
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MATCH_NUM
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};
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regmatch_t match[MATCH_NUM];
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regex_t re;
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// Matches either
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// (<c_identifier>,<c_identifier>) for non-pointer entries
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// or
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// *(<c_identifier>,<c_identifier>) for pointer entries
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const char *line_regexp = "^(\\*?)\\(([_a-zA-Z][_a-zA-Z0-9]*),([_a-zA-Z][_a-zA-Z0-9]*)\\)$";
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int status = regcomp(&re, line_regexp, REG_EXTENDED);
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assert(status == 0 && "Failed to compile sequence order regular expression?");
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char *lstart = filedata;
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for (size_t i = 0; i < total_size; i++) {
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// find end of line
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char *p = lstart;
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while (*p != '\n') {
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assert(*p != '\0');
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p++;
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}
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char *lend = p;
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// null-terminate the line (replaces the newline)
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*lend = '\0';
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// try to match the regular expression
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status = regexec(&re, lstart, MATCH_NUM, match, 0);
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if (status != 0) {
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// failed to match, malformed input file
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char ebuf[128];
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regerror(status, &re, ebuf, sizeof(ebuf));
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fprintf(stderr, "Failed to match line %lu: \"%s\"\nregexec error: \"%s\"\n", i, lstart, ebuf);
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goto malformed;
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}
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// if the group is empty we're not a pointer, else we are
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entries[i].isptr = match[MATCH_PTR].rm_so != match[MATCH_PTR].rm_eo;
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// get the name
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entries[i].name = &lstart[match[MATCH_NAME].rm_so];
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lstart[match[MATCH_NAME].rm_eo] = '\0'; // replaces ,
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// get the enum name
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entries[i].enum_name = &lstart[match[MATCH_ENUM].rm_so];
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lstart[match[MATCH_ENUM].rm_eo] = '\0'; // replaces )
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// next line
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lstart = lend + 1;
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}
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assert(*lstart == '\0');
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// Write results
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order->num_sequences = total_size;
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order->entries = entries;
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order->filedata = filedata;
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return;
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malformed:
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error("Malformed %s?", path);
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}
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struct seqdata {
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const char *elf_path;
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const char *name;
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uint32_t font_section_offset;
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size_t font_section_size;
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};
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static int
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tablegen_sequences(const char *seq_font_tbl_out, const char *seq_order_path, const char **sequences_paths,
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int num_sequence_files)
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{
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struct seq_order order;
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read_seq_order(&order, seq_order_path);
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#ifdef SEQ_DEBUG
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// Print the sequence order
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printf("Sequence order:\n");
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for (size_t i = 0; i < order.num_sequences; i++) {
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printf(" name=\"%s\" enum=\"%s\" ptr=%d\n", order.entries[i].name, order.entries[i].enum_name,
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order.entries[i].isptr);
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}
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#endif
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struct seqdata *file_data = malloc(num_sequence_files * sizeof(struct seqdata));
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// Read and validate the sequence object files
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for (int i = 0; i < num_sequence_files; i++) {
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const char *path = sequences_paths[i];
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if (!str_endswith(path, strlen(path), ".o"))
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error("Not a .o file? (\"%s\")", path);
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// Open ELF file
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size_t data_size;
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void *data = elf32_read(path, &data_size);
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Elf32_Shdr *symtab = elf32_get_symtab(data, data_size);
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if (symtab == NULL)
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error("ELF file \"%s\" has no symbol table?", path);
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Elf32_Shdr *shstrtab = elf32_get_shstrtab(data, data_size);
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if (shstrtab == NULL)
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error("ELF file \"%s\" has no section header string table?", path);
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// The .fonts and .name sections are written when assembling the sequence:
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// The .fonts section contains a list of bytes for each soundfont the sequences uses
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// The .name section contains the null-terminated name of the sequence as set by .startseq
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Elf32_Shdr *font_section = elf32_section_forname(".fonts", shstrtab, data, data_size);
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if (font_section == NULL)
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error("Sequence file \"%s\" has no fonts section?", path);
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uint32_t font_section_offset = elf32_read32(font_section->sh_offset);
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uint32_t font_section_size = elf32_read32(font_section->sh_size);
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validate_read(font_section_offset, font_section_size, data_size);
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Elf32_Shdr *name_section = elf32_section_forname(".name", shstrtab, data, data_size);
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if (name_section == NULL)
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error("Sequence file \"%s\" has no name section?", path);
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uint32_t name_section_offset = elf32_read32(name_section->sh_offset);
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uint32_t name_section_size = elf32_read32(name_section->sh_size);
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validate_read(name_section_offset, name_section_size, data_size);
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const char *seq_name = GET_PTR(data, name_section_offset);
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if (strnlen(seq_name, name_section_size + 1) >= name_section_size)
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error("Sequence file \"%s\" name is not properly terminated?", path);
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// Populate new data
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struct seqdata *seqdata = &file_data[i];
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seqdata->elf_path = strdup(path);
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seqdata->name = strdup(seq_name);
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seqdata->font_section_offset = font_section_offset;
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seqdata->font_section_size = font_section_size;
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free(data);
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}
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#ifdef SEQ_DEBUG
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// Debugging: Print the findings for each sequence object
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printf("\nNum files: %d\n\n", num_sequence_files);
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for (int i = 0; i < num_sequence_files; i++) {
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struct seqdata *seqdata = &file_data[i];
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printf(
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// clang-format off
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" elf path : \"%s\"" "\n"
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" name : \"%s\"" "\n"
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" font offset : 0x%X" "\n"
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" num fonts : %lu" "\n\n",
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// clang-format on
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seqdata->elf_path, seqdata->name, seqdata->font_section_offset, seqdata->font_section_size);
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}
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#endif
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// Link against the sequence order coming from the sequence table header
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struct seqdata **final_seqdata = calloc(order.num_sequences, sizeof(struct seqdata *));
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for (size_t i = 0; i < order.num_sequences; i++) {
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// Skip pointers for now
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if (order.entries[i].isptr)
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continue;
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// If it's not a pointer, "name" is the name as it appears in a sequence file, find it in the list of sequences
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const char *name = order.entries[i].name;
|
|
|
|
// Find the object file with this name
|
|
for (int j = 0; j < num_sequence_files; j++) {
|
|
struct seqdata *seqdata = &file_data[j];
|
|
|
|
if (strequ(name, seqdata->name)) {
|
|
// Found name, done
|
|
final_seqdata[i] = seqdata;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (size_t i = 0; i < order.num_sequences; i++) {
|
|
// Now we only care about pointers
|
|
if (!order.entries[i].isptr)
|
|
continue;
|
|
|
|
// If it's a pointer, "name" is the ENUM name of the sequence it points to
|
|
const char *name = order.entries[i].name;
|
|
|
|
for (size_t j = 0; j < order.num_sequences; j++) {
|
|
// Skip pointers, the system doesn't allow multiple indirection so this must point to a non-pointer entry.
|
|
if (order.entries[j].isptr)
|
|
continue;
|
|
|
|
if (strequ(name, order.entries[j].enum_name)) {
|
|
// For pointers, we just duplicate the fonts for the original into the pointer entry.
|
|
// TODO ideally we would allow fonts to be different when a sequence is accessed by pointer, but how
|
|
// to supply this info?
|
|
final_seqdata[i] = final_seqdata[j];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make sure we found an object file for all declared sequences
|
|
for (size_t i = 0; i < order.num_sequences; i++) {
|
|
if (final_seqdata[i] == NULL)
|
|
error("Could not find object file for sequence %lu : %s", i, order.entries[i].name);
|
|
}
|
|
|
|
// Write the sequence font table out
|
|
|
|
FILE *out = fopen(seq_font_tbl_out, "w");
|
|
if (out == NULL)
|
|
error("Failed to open output file \"%s\" for writing", seq_font_tbl_out);
|
|
|
|
fprintf(out,
|
|
// clang-format off
|
|
"\n"
|
|
".section .rodata" "\n"
|
|
"\n"
|
|
".global gSequenceFontTable" "\n"
|
|
"gSequenceFontTable:" "\n"
|
|
// clang-format on
|
|
);
|
|
|
|
// Write the 16-bit offsets for each sequence
|
|
for (size_t i = 0; i < order.num_sequences; i++) {
|
|
fprintf(out, " .half Fonts_%lu - gSequenceFontTable\n", i);
|
|
}
|
|
fprintf(out, "\n");
|
|
|
|
// Write the fonts for each sequence: number of fonts followed by an incbin for the rest.
|
|
for (size_t i = 0; i < order.num_sequences; i++) {
|
|
fprintf(out,
|
|
// clang-format off
|
|
"Fonts_%lu:" "\n"
|
|
" .byte %ld" "\n"
|
|
" .incbin \"%s\", 0x%X, %lu" "\n"
|
|
"\n",
|
|
// clang-format on
|
|
i, final_seqdata[i]->font_section_size, final_seqdata[i]->elf_path,
|
|
final_seqdata[i]->font_section_offset, final_seqdata[i]->font_section_size);
|
|
}
|
|
fprintf(out, ".balign 16\n");
|
|
|
|
fclose(out);
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
/* Common */
|
|
|
|
static int
|
|
usage(const char *progname)
|
|
{
|
|
fprintf(stderr,
|
|
// clang-format off
|
|
"%s: Generate code tables for audio data" "\n"
|
|
"Usage:" "\n"
|
|
" %s --banks <samplebank_table.h> <samplebank xml files...>" "\n"
|
|
" %s --fonts <soundfont_table.h> <soundfont xml files...>" "\n"
|
|
" %s --sequences <seq_font_table.s> <sequence_order.in> <sequence object files...>" "\n",
|
|
// clang-format on
|
|
progname, progname, progname, progname);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int ret = EXIT_SUCCESS;
|
|
|
|
const char *progname = argv[0];
|
|
|
|
if (argc < 2)
|
|
return usage(progname);
|
|
|
|
const char *mode = argv[1];
|
|
|
|
if (strequ(mode, "--banks")) {
|
|
if (argc < 4)
|
|
return usage(progname);
|
|
|
|
const char *sb_hdr_out = argv[2];
|
|
const char **samplebanks_paths = (const char **)&argv[3];
|
|
int num_samplebank_files = argc - 3;
|
|
|
|
ret = tablegen_samplebanks(sb_hdr_out, samplebanks_paths, num_samplebank_files);
|
|
} else if (strequ(mode, "--fonts")) {
|
|
if (argc < 4)
|
|
return usage(progname);
|
|
|
|
const char *sf_hdr_out = argv[2];
|
|
char **soundfonts_paths = &argv[3];
|
|
int num_soundfont_files = argc - 3;
|
|
|
|
ret = tablegen_soundfonts(sf_hdr_out, soundfonts_paths, num_soundfont_files);
|
|
} else if (strequ(mode, "--sequences")) {
|
|
if (argc < 5)
|
|
return usage(progname);
|
|
|
|
const char *seq_font_tbl_out = argv[2];
|
|
const char *seq_order_path = argv[3];
|
|
const char **sequences_paths = (const char **)&argv[4];
|
|
int num_sequence_files = argc - 4;
|
|
|
|
ret = tablegen_sequences(seq_font_tbl_out, seq_order_path, sequences_paths, num_sequence_files);
|
|
} else {
|
|
return usage(progname);
|
|
}
|
|
|
|
return ret;
|
|
}
|