feat: use PVRTexToolCLI

src/core/blitzkrieg/ddsToPng.ts

@@ -1,67 +0,0 @@
-import { execFile } from 'child_process';
-import { existsSync } from 'fs';
-import { mkdir, readFile, rm, writeFile } from 'fs/promises';
-import { uniqueId } from 'lodash';
-import { promisify } from 'util';
-
-export async function clearDdsToPng() {
-  await rm('temp/ddsToPng/images', { force: true, recursive: true });
-}
-
-const execFilePromise = promisify(execFile);
-let downloadStatus: Promise<void> | undefined = undefined;
-
-export async function ddsToPng(ddsBuffer: Buffer) {
-  const id = uniqueId();
-  await mkdir('temp/ddsToPng/images', { recursive: true });
-
-  if (
-    !existsSync('temp/ddsToPng/texconv.exe') &&
-    downloadStatus === undefined
-  ) {
-    console.log('texconv.exe not found, downloading...');
-
-    downloadStatus = new Promise<void>(async (resolve, reject) => {
-      const releaseResponse = await fetch(
-        'https://api.github.com/repos/microsoft/DirectXTex/releases/latest',
-      );
-      const releaseData = (await releaseResponse.json()) as {
-        assets: { browser_download_url: string; name: string }[];
-      };
-      const asset = releaseData.assets.find(
-        (asset) => asset.name === 'texconv.exe',
-      );
-
-      if (!asset) throw new Error('Could not find texconv.exe');
-
-      const downloadResponse = await fetch(asset.browser_download_url);
-      const downloadData = await downloadResponse.arrayBuffer();
-
-      await writeFile(
-        'temp/ddsToPng/texconv.exe',
-        new Uint8Array(downloadData),
-      );
-
-      resolve();
-    });
-  }
-
-  await downloadStatus;
-
-  return new Promise<Buffer>(async (resolve, reject) => {
-    await writeFile(`temp/ddsToPng/images/${id}.dds`, ddsBuffer);
-    await execFilePromise('temp/ddsToPng/texconv.exe', [
-      '-ft',
-      'png',
-      '-o',
-      'temp/ddsToPng/images',
-      `temp/ddsToPng/images/${id}.dds`,
-    ]);
-
-    const pngBuffer = await readFile(`temp/ddsToPng/images/${id}.png`);
-
-    resolve(pngBuffer);
-    rm(`temp/ddsToPng/images/${id}.dds`);
-    // rm(`temp/ddsToPng/images/${id}.png`);
-  });
-}

src/core/blitzkrieg/toPng.ts

@@ -0,0 +1,38 @@
+import { exec } from 'child_process';
+import { mkdir, readFile, rm, writeFile } from 'fs/promises';
+import { generateUUID } from 'three/src/math/MathUtils';
+import { promisify } from 'util';
+
+const execPromise = promisify(exec);
+
+interface ToPngOptions {
+  format: string;
+  alpha: boolean;
+}
+
+const toPngDefaultOptions: ToPngOptions = {
+  format: 'dds',
+  alpha: true,
+};
+
+export async function toPng(
+  inputBuffer: Buffer,
+  options?: Partial<ToPngOptions>,
+) {
+  const mergedOptions = { ...toPngDefaultOptions, ...options };
+  const id = generateUUID();
+  await mkdir('temp/toPng', { recursive: true });
+  await writeFile(`temp/toPng/${id}.${mergedOptions.format}`, inputBuffer);
+  await execPromise(
+    `PVRTexToolCLI -noout -i temp/toPng/${id}.${mergedOptions.format} -f ${
+      mergedOptions.alpha ? 'r8g8b8a8' : 'r8g8b8'
+    },UB,sRGB -d temp/toPng/${id}.png`,
+  );
+
+  const pngBuffer = await readFile(`temp/toPng/${id}.png`);
+
+  rm(`temp/toPng/${id}.${mergedOptions.format}`);
+  rm(`temp/toPng/${id}.png`);
+
+  return pngBuffer;
+}