GABRlEL.github.io/rrfont.html at main · GABRlEL/GABRlEL.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>RR TKEF Font Patcher</title>
  <style>
    body {
      font-family: system-ui, sans-serif;
      background: #111;
      color: #eee;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      min-height: 100vh;
      padding: 2rem 1rem;
    }
    h1 {
      font-size: 1.4rem;
      margin-bottom: 0.2rem;
    }
    h2 {
      font-size: 1.1rem;
      margin-bottom: 0.2rem;
    }
    .drop-zone {
      border: 2px dashed #666;
      border-radius: 8px;
      padding: 2rem;
      margin-top: 1rem;
      text-align: center;
      max-width: 420px;
      width: 100%;
      cursor: pointer;
      transition: border-color 0.15s ease, background-color 0.15s ease;
    }
    .drop-zone.dragover {
      border-color: #0af;
      background-color: #111a;
    }
    input[type="file"] {
      margin-top: 0.5rem;
    }
    #log {
      margin-top: 1.5rem;
      max-width: 640px;
      width: 100%;
      white-space: pre-wrap;
      font-family: monospace;
      font-size: 0.9rem;
    }
    small {
      opacity: 0.75;
    }
    p {
      text-align: center;
    }
p.compress-toggle {
  margin-top: 0.2rem;
}
  </style>
</head>
<body>
  <h1>Font.szs tt_kart_extension_font.brfnt Replacer (Catgirl Edition)</h1>
  <h2>Made with Retro Rewind in mind, RR variant is automatically applied</h2>
  <p>Drop a <code>Font.szs</code> below or click to select it, nya.<br>Made by ChatGPT 5.1 Thinking, thanks to BrawlCrate and Wiimms SZS Tools for inspiration.</p>

  <div id="drop-zone" class="drop-zone">
    <strong>Drop Font.szs here</strong><br>
    <small>or click to choose a file</small><br><br>
    <input id="font-file-input" type="file" accept=".szs">
  </div>

  <p>
    <small>
      The tool automatically tries to load <code>tt_kart_extension_font.brfnt</code>
      from the same folder as this HTML.<br>
      If that fails (e.g. due to file:// restrictions) or you want to load your own, you can also select it manually:
    </small>
    <br>
    <input id="brfnt-file-input" type="file" accept=".brfnt">
  </p>

  <!-- New: literal-only toggle -->
  <p class="compress-toggle">
    <label>
      <input type="checkbox" id="literal-only-checkbox">
      Use literal-only Yaz0 (no real compression) – only recommended if compressed output causes issues
    </label>
  </p>

  <pre id="log"></pre>

  <script>
    // --- Utility logging ----------------------------------------------------
    const logEl = document.getElementById('log');
    function log(msg) {
      logEl.textContent = msg;
    }
    function appendLog(msg) {
      logEl.textContent += msg + "\n";
    }

    // --- File reading helpers ----------------------------------------------
    function readFileAsUint8Array(file) {
      return new Promise((resolve, reject) => {
        const reader = new FileReader();
        reader.onerror = () => reject(reader.error);
        reader.onload = () => {
          resolve(new Uint8Array(reader.result));
        };
        reader.readAsArrayBuffer(file);
      });
    }

    // --- Yaz0 decompression -------------------------------------------------
    function yaz0Decompress(src) {
      if (src[0] !== 0x59 || src[1] !== 0x61 || src[2] !== 0x7A || src[3] !== 0x30) {
        throw new Error("Input is not Yaz0-compressed (missing 'Yaz0' magic).");
      }

      const dv = new DataView(src.buffer, src.byteOffset, src.byteLength);
      const uncompressedSize = dv.getUint32(4, false); // big-endian
      const dst = new Uint8Array(uncompressedSize);

      let srcPos = 16; // skip Yaz0 header
      let dstPos = 0;
      let currCodeByte = 0;
      let validBitCount = 0;

      while (dstPos < uncompressedSize) {
        if (validBitCount === 0) {
          if (srcPos >= src.length) break;
          currCodeByte = src[srcPos++];
          validBitCount = 8;
        }

        if (currCodeByte & 0x80) {
          // Literal byte
          if (srcPos >= src.length) throw new Error("Yaz0 stream truncated (literal).");
          dst[dstPos++] = src[srcPos++];
        } else {
          // Compressed run
          if (srcPos + 1 >= src.length) {
            throw new Error("Yaz0 stream truncated (compressed pair).");
          }
          const byte1 = src[srcPos++];
          const byte2 = src[srcPos++];
          let dist = ((byte1 & 0x0F) << 8) | byte2;
          dist += 1;

          let length = byte1 >> 4;
          if (length === 0) {
            if (srcPos >= src.length) throw new Error("Yaz0 stream truncated (length extension).");
            length = src[srcPos++] + 0x12;
          } else {
            length += 2;
          }

          for (let i = 0; i < length; i++) {
            dst[dstPos] = dst[dstPos - dist];
            dstPos++;
          }
        }

        currCodeByte <<= 1;
        validBitCount--;
      }

      if (dstPos !== uncompressedSize) {
        appendLog("Warning: decompressed size mismatch (expected " + uncompressedSize +
                  ", got " + dstPos + ").");
      }

      return dst;
    }

    // --- Yaz0 compression (optimized) --------------------------------------
    // Yaz0 compression with simple LZ-style matching.
    // Good enough to get sizes close to Nintendo's originals.
    function yaz0Compress(uncompressed) {
      const size = uncompressed.length;
      const out = [];

      // Yaz0 header
      out.push(0x59, 0x61, 0x7A, 0x30); // 'Yaz0'
      out.push(
        (size >>> 24) & 0xFF,
        (size >>> 16) & 0xFF,
        (size >>> 8) & 0xFF,
        size & 0xFF
      );
      // 8 reserved bytes
      for (let i = 0; i < 8; i++) out.push(0x00);

      const MAX_SEARCH_DEPTH = 8;      // tradeoff: speed vs. ratio
      const head = new Int32Array(0x10000);
      const prev = new Int32Array(size);
      head.fill(-1);
      prev.fill(-1);

      let pos = 0;

      while (pos < size) {
        const ctrlPos = out.length;
        out.push(0x00); // control byte placeholder
        let mask = 0x80;

        for (let b = 0; b < 8 && pos < size; b++) {
          let bestLen = 0;
          let bestDist = 0;

          if (pos < size - 2) {
            // Look for a match starting at pos.
            const k = ((uncompressed[pos] << 8) | uncompressed[pos + 1]) & 0xFFFF;
            let idx = head[k];
            let searchCount = 0;

            while (idx >= 0 && (pos - idx) <= 0x1000 && searchCount < MAX_SEARCH_DEPTH) {
              const dist = pos - idx;
              let maxLen = size - pos;
              if (maxLen > 0x111) maxLen = 0x111;
              const maxLenIdx = size - idx;
              if (maxLen > maxLenIdx) maxLen = maxLenIdx;

              let length = 2; // first 2 bytes already match by key
              while (
                length < maxLen &&
                uncompressed[idx + length] === uncompressed[pos + length]
              ) {
                length++;
              }

              if (length > bestLen && length >= 3) {
                bestLen = length;
                bestDist = dist;
                if (length === maxLen) break;
              }

              searchCount++;
              idx = prev[idx];
            }
          }

          if (bestLen >= 3) {
            // Emit compressed run
            const runLen = bestLen;
            const distMinus1 = bestDist - 1;

            if (runLen >= 0x12) {
              // 3-byte form: len = extra byte + 0x12
              out.push(((0) << 4) | ((distMinus1 >> 8) & 0x0F));
              out.push(distMinus1 & 0xFF);
              out.push((runLen - 0x12) & 0xFF);
            } else {
              // 2-byte form: len = (high nibble) + 2
              out.push(((runLen - 2) << 4) | ((distMinus1 >> 8) & 0x0F));
              out.push(distMinus1 & 0xFF);
            }

            // Update dictionary for all positions we just consumed.
            const start = pos;
            const end = Math.min(pos + runLen, size - 1);
            for (let i = start; i < end; i++) {
              const k2 = ((uncompressed[i] << 8) | uncompressed[i + 1]) & 0xFFFF;
              prev[i] = head[k2];
              head[k2] = i;
            }

            pos += runLen;
          } else {
            // Literal byte
            out[ctrlPos] |= mask;
            out.push(uncompressed[pos]);

            if (pos < size - 1) {
              const k2 = ((uncompressed[pos] << 8) | uncompressed[pos + 1]) & 0xFFFF;
              prev[pos] = head[k2];
              head[k2] = pos;
            }

            pos += 1;
          }

          mask >>= 1;
        }
      }

      return new Uint8Array(out);
    }

    // --- Yaz0 compression (literal-only fallback) ---------------------------
    function yaz0CompressLiteralOnly(uncompressed) {
      const size = uncompressed.length;
      const out = [];

      // Yaz0 magic
      out.push(0x59, 0x61, 0x7A, 0x30);
      // Uncompressed size (big-endian)
      out.push(
        (size >>> 24) & 0xFF,
        (size >>> 16) & 0xFF,
        (size >>> 8) & 0xFF,
        size & 0xFF
      );
      // 8 reserved bytes
      for (let i = 0; i < 8; i++) out.push(0x00);

      let i = 0;
      while (i < size) {
        const ctrlIndex = out.length;
        out.push(0x00); // placeholder for control byte
        let mask = 0x80;

        for (let bit = 0; bit < 8 && i < size; bit++) {
          // Emit literal byte
          out[ctrlIndex] |= mask;
          out.push(uncompressed[i++]);
          mask >>= 1;
        }
      }

      return Uint8Array.from(out);
    }

    // --- U8 archive parsing -------------------------------------------------
    function parseU8(u8) {
      if (u8[0] !== 0x55 || u8[1] !== 0xAA || u8[2] !== 0x38 || u8[3] !== 0x2D) {
        throw new Error("Not a U8 archive (missing U8 magic).");
      }

      const dv = new DataView(u8.buffer, u8.byteOffset, u8.byteLength);
      const rootOffset  = dv.getUint32(4,  false); // big-endian
      const headerSize  = dv.getUint32(8,  false);
      const dataOffset  = dv.getUint32(12, false);

      function readNode(idx) {
        const off = rootOffset + idx * 12;
        const type = u8[off];
        const nameOffset = ((u8[off + 1] << 16) | (u8[off + 2] << 8) | u8[off + 3]) >>> 0;
        const dataOff = dv.getUint32(off + 4, false);
        const size = dv.getUint32(off + 8, false);
        return { type, nameOffset, dataOffset: dataOff, size, off, index: idx };
      }

      const rootNode = readNode(0);
      const nodeCount = rootNode.size;
      const nodes = new Array(nodeCount);
      for (let i = 0; i < nodeCount; i++) {
        nodes[i] = readNode(i);
      }

      const stringBase = rootOffset + nodeCount * 12;
      const paths = new Array(nodeCount);
      paths[0] = "";

      // Stack-based directory traversal; root's children are [1, nodeCount)
      const stack = [
        { index: 0, firstChild: 1, endIndex: nodeCount }
      ];

      for (let idx = 1; idx < nodeCount; idx++) {
        const node = nodes[idx];

        // Find current parent directory
        while (stack.length) {
          const top = stack[stack.length - 1];
          if (top.firstChild <= idx && idx < top.endIndex) break;
          stack.pop();
        }
        const parentIndex = stack.length ? stack[stack.length - 1].index : 0;

        // Read name
        const nameStart = stringBase + node.nameOffset;
        let p = nameStart;
        const bytes = [];
        while (p < u8.length && u8[p] !== 0x00) {
          bytes.push(u8[p++]);
        }
        const name = String.fromCharCode.apply(null, bytes);
        const parentPath = paths[parentIndex];
        const fullPath = parentPath ? (parentPath + "/" + name) : name;
        paths[idx] = fullPath;

        if (node.type === 1) {
          // Directory: dataOffset = first child index, size = end index
          stack.push({ index: idx, firstChild: node.dataOffset, endIndex: node.size });
        }
      }

      return { nodes, paths, rootOffset, headerSize, dataOffset };
    }

    // --- U8 patching: replace tt_kart_extension_font.brfnt ------------------
    function replaceBrfntInU8(u8, replacementUint8, targetSuffix = "tt_kart_extension_font.brfnt") {
      const { nodes, paths, rootOffset, headerSize, dataOffset } = parseU8(u8);

      // Copy header + any padding up to dataOffset
      const header = new Uint8Array(u8.subarray(0, dataOffset));
      const headerView = new DataView(header.buffer, header.byteOffset, header.byteLength);

      // Data part will be built incrementally
      const dataBytes = [];

      function currentOffset() {
        return header.length + dataBytes.length;
      }

      function padToAlignment(alignment) {
        const offset = currentOffset();
        const pad = (alignment - (offset % alignment)) & (alignment - 1);
        for (let i = 0; i < pad; i++) dataBytes.push(0x00);
      }

      for (let idx = 1; idx < nodes.length; idx++) {
        const node = nodes[idx];
        if (node.type === 1) {
          // Directory node: keep header fields as-is
          continue;
        }

        // Align each file to 0x20 bytes (matches MKWii archives)
        padToAlignment(0x20);
        const newOffset = currentOffset();

        const fullPath = paths[idx] || "";
        const isTarget = fullPath.endsWith(targetSuffix);

        let fileData;
        if (isTarget) {
          fileData = replacementUint8;
        } else {
          fileData = u8.subarray(node.dataOffset, node.dataOffset + node.size);
        }

        // Patch node's dataOffset and size in header
        const nodeHeaderOff = rootOffset + idx * 12;
        headerView.setUint32(nodeHeaderOff + 4, newOffset, false);
        headerView.setUint32(nodeHeaderOff + 8, fileData.length, false);

        // Append file data
        for (let i = 0; i < fileData.length; i++) {
          dataBytes.push(fileData[i]);
        }
      }

      const dataArr = Uint8Array.from(dataBytes);
      const newU8 = new Uint8Array(header.length + dataArr.length);
      newU8.set(header, 0);
      newU8.set(dataArr, header.length);

      return newU8;
    }

    // --- Replacement brfnt loader ------------------------------------------
    let cachedReplacement = null;

    async function getReplacementBrfnt() {
      if (cachedReplacement) return cachedReplacement;

      // 1) If user selected a brfnt manually, use that first
      const brfntInput = document.getElementById('brfnt-file-input');
      if (brfntInput.files && brfntInput.files.length > 0) {
        appendLog("Using replacement .brfnt from file input.");
        const buf = await readFileAsUint8Array(brfntInput.files[0]);
        cachedReplacement = buf;
        return cachedReplacement;
      }

      // 2) Otherwise, try to fetch from same folder as HTML
      try {
        appendLog("Trying to load tt_kart_extension_font.brfnt next to this HTML...");
        const res = await fetch("tt_kart_extension_font.brfnt");
        if (!res.ok) {
          throw new Error("HTTP status " + res.status);
        }
        const arr = new Uint8Array(await res.arrayBuffer());
        cachedReplacement = arr;
        appendLog("Loaded tt_kart_extension_font.brfnt via fetch.");
        return cachedReplacement;
      } catch (e) {
        throw new Error(
          "Could not load tt_kart_extension_font.brfnt automatically.\n" +
          "Error: " + e.message + "\n" +
          "Select the .brfnt manually using the second file input."
        );
      }
    }

    // --- Download helper ----------------------------------------------------
    function downloadUint8AsFile(bytes, fileName) {
      const blob = new Blob([bytes], { type: "application/octet-stream" });
      const url = URL.createObjectURL(blob);
      const a = document.createElement("a");
      a.href = url;
      a.download = fileName;
      document.body.appendChild(a);
      a.click();
      document.body.removeChild(a);
      URL.revokeObjectURL(url);
    }

    // --- Main processing ----------------------------------------------------
    async function handleFontFile(file) {
      try {
        log("Reading " + file.name + " ...");
        const fontData = await readFileAsUint8Array(file);

        appendLog("Decompressing Yaz0...");
        const u8 = yaz0Decompress(fontData);

        appendLog("Loading replacement tt_kart_extension_font.brfnt...");
        const replacement = await getReplacementBrfnt();

        appendLog("Patching U8 archive (replacing tt_kart_extension_font.brfnt)...");
        const newU8 = replaceBrfntInU8(u8, replacement);

        const literalCheckbox = document.getElementById('literal-only-checkbox');
        let newSZS;

        if (literalCheckbox && literalCheckbox.checked) {
          appendLog("Re-compressing as Yaz0 (literal-only, no real compression)...");
          newSZS = yaz0CompressLiteralOnly(newU8);
        } else {
          appendLog("Re-compressing as Yaz0 (optimized compression)...");
          newSZS = yaz0Compress(newU8);
        }

        const baseName = file.name.replace(/\.szs$/i, "");
        const outName = baseName + "_tt_ext_patched.szs";

        appendLog("Done! Triggering download: " + outName);
        downloadUint8AsFile(newSZS, outName);
        appendLog("All good, nya~");
      } catch (e) {
        appendLog("Error: " + e.message);
        console.error(e);
      }
    }

    // --- UI wiring ----------------------------------------------------------
    (function setupUI() {
      const dropZone = document.getElementById('drop-zone');
      const fontInput = document.getElementById('font-file-input');

      // Clicking anywhere in the drop zone *except* directly on the input
      // should trigger the file dialog once.
      dropZone.addEventListener('click', (e) => {
        // If the actual click target is the <input>, let it handle itself.
        if (e.target === fontInput) return;
        fontInput.click();
      });

      // Prevent the input's click from bubbling up and retriggering the drop zone handler.
      fontInput.addEventListener('click', (e) => {
        e.stopPropagation();
      });

      fontInput.addEventListener('change', () => {
        if (fontInput.files && fontInput.files.length > 0) {
          handleFontFile(fontInput.files[0]);
        }
      });

      dropZone.addEventListener('dragover', (e) => {
        e.preventDefault();
        e.dataTransfer.dropEffect = 'copy';
        dropZone.classList.add('dragover');
      });

      dropZone.addEventListener('dragleave', (e) => {
        e.preventDefault();
        dropZone.classList.remove('dragover');
      });

      dropZone.addEventListener('drop', (e) => {
        e.preventDefault();
        dropZone.classList.remove('dragover');
        const files = e.dataTransfer.files;
        if (files && files.length > 0) {
          handleFontFile(files[0]);
        }
      });

      log("Ready. Drop a Font.szs, and I'll replace tt_kart_extension_font.brfnt for you, nya~");
    })();
  </script>
</body>
</html>