sointu renderer

build.sh

../sointu/sointu-compile -arch amd64 ../sointu/temp_song_file.yml
# if you just want to redner a short version
# node rendershort.mjs
yasm -f macho64 -a x86 temp_song_file.asm --objfile=temp_song_file.o
MACOSX_DEPLOYMENT_TARGET=11 gcc -Wl,-no_pie -arch x86_64 temp_song_file.o test.c -o test

build_linux_x86.sh

../sointu/sointu-compile -arch amd64 ../sointu/temp_song_file.yml
# if you just want to redner a short version
# node rendershort.mjs
yasm -f elf64 temp_song_file.asm --objfile=temp_song_file.o
# MACOSX_DEPLOYMENT_TARGET=11 gcc -Wl,-no_pie -arch x86_64 temp_song_file.o test.c -o test
gcc temp_song_file.o test.c -o test

rendershort.mjs

import { readFile, writeFile } from 'fs/promises';

const file = await readFile('./temp_song_file.asm').then(f => f.toString());
const lines = file.split('\n');
const rowlooplineindex = lines.findIndex(line => line.indexOf('jl      su_render_rowloop')>-1);
lines[rowlooplineindex-1] = '        cmp     eax, 16';
await writeFile('./temp_song_file.asm', lines.join('\n'));

test.c

#include "./temp_song_file.h"
#include <stdio.h>

float buffer[SU_BUFFER_LENGTH];
extern char syncBuf[SU_SYNCBUFFER_LENGTH];
char syncBuf[SU_SYNCBUFFER_LENGTH] = { 0 }; 

int main() {
    printf("rendering!\n");

    su_render_song(buffer);

    printf("writing file\n");
    FILE* file = fopen("music.raw", "wb");
    if (!file) {
        perror("fopen failed");
        return 1;
    }
    
    for (size_t i = 0; i < SU_BUFFER_LENGTH; i++) {
        float value = buffer[i];
        fwrite(&value, sizeof(float), 1, file);
    }
    printf("closing\n");
    fclose(file);
}