feat(encode): ✨ support PLTE

vivaxy · Dec 30, 2019 · e14dca8 · e14dca8
1 parent 9e95e10
commit e14dca8
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/src/encode/__tests__/index.test.ts b/src/encode/__tests__/index.test.ts
@@ -17,7 +17,7 @@ test('encode', async function() {
   //   cwd: fixturesPath,
   //   onlyDirectories: true,
   // });
-  const testcaseNames = ['chunk-IHDR'];
+  const testcaseNames = ['bit-depth-01'];
 
   await Promise.all(
     testcaseNames.map(async function(testcaseName) {

diff --git a/src/encode/index.ts b/src/encode/index.ts
@@ -58,6 +58,15 @@ export default function encode(metadata: Metadata) {
 
   function packPLTE() {
     let data = new Uint8Array();
+    if (metadata.palette) {
+      for (let i = 0; i < metadata.palette.length; i++) {
+        const palette = metadata.palette[i];
+        data = concatUInt8Array(
+          data,
+          new Uint8Array([palette[0], palette[1], palette[2]]),
+        );
+      }
+    }
     return data;
   }