383 lines
12 KiB
C++
383 lines
12 KiB
C++
// WARNING: THIS SCRIPT IS CURRENTLY BROKEN.
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// It doesn't handle skyboxes/cake images correctly.
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// Usage:
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// g++-8 -std=c++17 ./tools/gen_asset_list.cpp -lstdc++fs -O1 -Wall -o tools/gen_asset_list
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// ./tools/gen_asset_list
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#include <algorithm>
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#include <cassert>
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#include <cstdio>
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#include <filesystem>
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#include <fstream>
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#include <iostream>
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#include <map>
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#include <sstream>
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#include <string>
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#include <unordered_map>
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#include <vector>
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using namespace std;
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#define BSWAP32(x) ((((x) >> 24) & 0xff) | (((x) >> 8) & 0xff00) | (((x) << 8) & 0xff0000) | (((x) << 24) & 0xff000000U))
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#define BSWAP16(x) ((((x) >> 8) & 0xff) | (((x) << 8) & 0xff00))
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const char* OUTPUT_FILE = "assets.json";
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const size_t CHUNK_SIZE = 16;
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const vector<string> LANGS = {"jp", "us", "eu", "sh"};
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typedef uint8_t u8;
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typedef uint64_t u64;
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struct Pos {
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size_t pos;
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size_t mio0;
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};
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const u64 C = 12318461241ULL;
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size_t findCutPos(const string& s) {
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size_t ind = s.find_first_not_of(s[0], 1);
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if (ind == string::npos) ind = 0;
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else ind--;
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if (ind + CHUNK_SIZE <= s.size())
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return ind;
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return s.size() - CHUNK_SIZE;
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}
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pair<size_t, u64> hashString(const string& inp) {
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size_t cutPos = findCutPos(inp);
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string s = inp.substr(cutPos, CHUNK_SIZE);
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u64 ret = 0;
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for (u8 c : s) {
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ret *= C;
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ret += c;
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}
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return {cutPos, ret};
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}
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template<class F>
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void rollingHashes(const string& str, size_t chunkSize, F&& f) {
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if (str.size() < chunkSize) return;
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u64 h = 0, pw = 1;
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for (size_t i = 0; i < chunkSize; i++)
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h = h * C + (u8)str[i], pw = pw * C;
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f(0, h);
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for (size_t i = chunkSize; i < str.size(); i++) {
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h = h * C + (u8)str[i] - pw * (u8)str[i-chunkSize];
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f(i - chunkSize + 1, h);
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}
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}
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bool stringMatches(const string& base, size_t pos, const string& target) {
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if (pos + target.size() > base.size()) return false;
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for (int it = 0; it < 10; it++) {
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size_t i = rand() % target.size();
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if (base[pos + i] != target[i]) return false;
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}
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for (size_t i = 0; i < target.size(); i++) {
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if (base[pos + i] != target[i]) return false;
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}
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return true;
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}
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string mio0_decompress(uint32_t *src) {
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uint32_t size = BSWAP32(src[1]);
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string output(size, '\0');
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char *dest = output.data();
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char *destEnd = (size + dest);
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uint16_t *cmpOffset = (uint16_t *)((char *)src + BSWAP32(src[2]));
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char *rawOffset = ((char *)src + BSWAP32(src[3]));
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int counter = 0;
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uint32_t controlBits;
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src += 4;
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while (dest != destEnd) {
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if (counter == 0) {
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controlBits = *src++;
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controlBits = BSWAP32(controlBits);
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counter = 32;
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}
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if (controlBits & 0x80000000) {
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*dest++ = *rawOffset++;
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}
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else {
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uint16_t dcmpParam = *cmpOffset++;
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dcmpParam = BSWAP16(dcmpParam);
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int dcmpCount = (dcmpParam >> 12) + 3;
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char* dcmpPtr = dest - (dcmpParam & 0x0FFF);
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while (dcmpCount) {
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*dest++ = dcmpPtr[-1];
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dcmpCount--;
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dcmpPtr++;
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}
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}
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counter--;
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controlBits <<= 1;
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}
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return output;
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}
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string readFile(const string& p, bool allowMissing = false) {
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ifstream fin(p, ios::binary);
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if (!fin) {
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if (allowMissing) return "";
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cerr << "missing file " << p << endl;
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exit(1);
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}
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fin.seekg(0, fin.end);
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auto length = fin.tellg();
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fin.seekg(0, fin.beg);
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string data(length, '\0');
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fin.read(data.data(), length);
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assert(fin);
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return data;
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}
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pair<int, int> getPngSize(const string& fname) {
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string buffer(16, '\0');
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uint32_t w, h;
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ifstream fin(fname, ios::binary);
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fin.read(buffer.data(), 16);
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fin.read((char*)&w, 4);
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fin.read((char*)&h, 4);
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assert(fin);
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assert(buffer.substr(0, 4) == "\x89PNG");
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assert(buffer.substr(12, 4) == "IHDR");
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w = BSWAP32(w);
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h = BSWAP32(h);
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return {w, h};
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}
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string exec(const string& cmd) {
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char buffer[128];
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string result;
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FILE* pipe = popen(cmd.c_str(), "r");
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assert(pipe);
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size_t s;
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while ((s = fread(buffer, 1, sizeof(buffer), pipe))) {
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result += string(buffer, buffer + s);
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}
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assert(!ferror(pipe));
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pclose(pipe);
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return result;
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}
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string compileAsset(const string& fname) {
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auto ind = fname.rfind('.');
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if (ind == string::npos) return "";
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string q = fname.substr(ind + 1);
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if (q == "png") {
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string prev = fname.substr(0, ind);
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for (const string& lang : LANGS) {
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string ret = readFile("build/" + lang + "/" + prev, true);
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if (!ret.empty()) return ret;
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}
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ind = prev.rfind('.');
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if (ind == string::npos) return "";
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q = prev.substr(ind + 1);
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if (q == "rgba16" || q == "ia16" || q == "ia8" || q == "ia4" || q == "ia1") {
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return exec("./tools/n64graphics -i /dev/stdout -g " + fname + " -f " + q);
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}
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}
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if (q == "m64")
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return readFile(fname);
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if (q == "bin" && fname.find("assets") != string::npos)
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return readFile(fname);
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return "";
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}
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tuple<string, string, vector<string>> compileSoundData(const string& lang) {
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string upper_lang = lang;
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for (char& ch : upper_lang) ch = (char)(ch + 'A' - 'a');
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string build_dir = "build/" + lang;
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string dir = build_dir + "/sound";
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string ctl = dir + "/sound_data.ctl";
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string tbl = dir + "/sound_data.tbl";
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exec("make " + tbl + " VERSION=" + lang + " NOEXTRACT=1");
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string sampleFilesStr =
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exec("python3 tools/assemble_sound.py " +
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dir + "/samples/ "
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"sound/sound_banks/ " +
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dir + "/sound_data.ctl " +
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dir + "/sound_data.tbl " +
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"-DVERSION_" + upper_lang +
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" --print-samples");
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vector<string> sampleFiles;
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istringstream iss(sampleFilesStr);
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string line;
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while (getline(iss, line)) {
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line = line.substr(build_dir.size() + 1);
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line[line.size() - 1] = 'f';
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sampleFiles.push_back(line);
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}
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string ctlData = readFile(ctl);
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string tblData = readFile(tbl);
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return {ctlData, tblData, sampleFiles};
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}
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int main() {
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intentional syntax error; // (see comment at top of file)
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map<string, string> assets;
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map<string, vector<pair<string, int>>> soundAssets;
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cout << "compiling assets..." << endl;
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int totalAssets = 0;
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for (string base_dir : {"assets", "sound/sequences", "textures", "levels", "actors"}) {
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for (auto& ent: filesystem::recursive_directory_iterator(base_dir)) {
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string p = ent.path().string();
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string bin = compileAsset(p);
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if (bin.empty()) continue;
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if (bin.size() < CHUNK_SIZE) {
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cerr << "asset " << p << " is too small (" << bin.size() << " bytes), expected at least " << CHUNK_SIZE << " bytes" << endl;
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continue;
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}
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assets[p] = bin;
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totalAssets++;
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}
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}
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for (const string& lang : LANGS) {
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string ctl, tbl;
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vector<string> sampleFiles;
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tie(ctl, tbl, sampleFiles) = compileSoundData(lang);
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assets["@sound ctl " + lang] = ctl;
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assets["@sound tbl " + lang] = tbl;
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totalAssets += 2;
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for (size_t i = 0; i < sampleFiles.size(); i++) {
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soundAssets[sampleFiles[i]].emplace_back(lang, i);
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}
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}
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cout << "compiled " << totalAssets << " assets" << endl;
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unordered_map<u64, vector<pair<size_t, pair<string, string>>>> hashes;
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for (const auto& asset : assets) {
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size_t cutPos;
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u64 hash;
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tie(cutPos, hash) = hashString(asset.second);
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hashes[hash].push_back(make_pair(cutPos, asset));
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}
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map<pair<string, string>, Pos> assetPositions;
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for (const string& lang : LANGS) {
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cout << "searching " << lang << "..." << endl;
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auto remHashes = hashes;
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auto search = [&](string& str, string lang, size_t mio0) {
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rollingHashes(str, CHUNK_SIZE, [&](size_t hashPos, u64 hash) {
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if (!remHashes.count(hash)) return;
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vector<pair<size_t, pair<string, string>>>& conts = remHashes.at(hash);
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auto it = remove_if(conts.begin(), conts.end(),
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[&](const pair<size_t, pair<string, string>>& pa) {
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size_t cutPos = pa.first;
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const string& name = pa.second.first;
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const string& data = pa.second.second;
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size_t assetPos = hashPos - cutPos;
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if (stringMatches(str, assetPos, data)) {
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assetPositions[make_pair(lang, name)] = {assetPos, mio0};
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return true;
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}
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return false;
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});
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conts.erase(it, conts.end());
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if (conts.empty()) remHashes.erase(hash);
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});
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};
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string rom = readFile("baserom." + lang + ".z64");
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for (size_t i = 0; i < rom.size(); i += 4) {
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if (rom[i] == 'M' && rom[i+1] == 'I' && rom[i+2] == 'O' && rom[i+3] == '0') {
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string data = mio0_decompress((uint32_t*)&rom[i]);
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search(data, lang, i);
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}
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}
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search(rom, lang, 0);
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}
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cout << "generating " << OUTPUT_FILE << "..." << endl;
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ofstream fout(OUTPUT_FILE);
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assert(fout);
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fout <<
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"{\n"
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"\"@comment\": \"This file was generated by tools/gen_asset_list.cpp. "
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"When renaming a file, either change its name in this file directly, "
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"or regenerate this file using that script.\"";
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bool first1 = true;
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vector<string> notFound;
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for (const auto& asset : assets) {
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const string& name = asset.first;
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const string& data = asset.second;
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vector<pair<string, Pos>> positions;
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for (const string& lang : LANGS) {
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auto it = assetPositions.find(make_pair(lang, name));
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if (it != assetPositions.end()) {
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positions.push_back(make_pair(lang, it->second));
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}
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}
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if (positions.empty()) {
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notFound.push_back(name);
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}
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else {
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fout << ",\n";
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if (first1) fout << "\n";
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first1 = false;
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fout << "\"" << name << "\": [";
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if (name.substr(name.size() - 4) == ".png") {
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int w, h;
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tie(w, h) = getPngSize(name);
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fout << w << "," << h << ",";
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}
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fout << data.size() << ",{";
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bool first2 = true;
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for (auto& pa : positions) {
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auto p = pa.second;
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if (!first2) fout << ",";
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first2 = false;
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fout << "\"" << pa.first << "\":[";
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if (p.mio0)
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fout << p.mio0 << ",";
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fout << p.pos << ']';
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}
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fout << "}]";
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}
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}
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for (const auto& asset : soundAssets) {
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const string& name = asset.first;
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const vector<pair<string, int>>& locs = asset.second;
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fout << ",\n";
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fout << "\"" << name << "\": [0,{";
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bool first2 = true;
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for (auto& pa : locs) {
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if (!first2) fout << ",";
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first2 = false;
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fout << "\"" << pa.first << "\":[\"@sound\"," << pa.second << ']';
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}
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fout << "}]";
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}
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fout << "\n}" << endl;
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assert(fout);
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fout.close();
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if (!notFound.empty()) {
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cout << endl;
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cout << "Missing " << notFound.size() << " assets." << endl;
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if (notFound.size() <= 10) {
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for (auto& s : notFound) {
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cout << s << endl;
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}
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}
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return 1;
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}
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cout << "done!" << endl;
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return 0;
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}
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