webgl: Ignore alpha channel when allowTransparency is false

Tyriar · Tyriar · commit 2b38b653929e · 2025-05-07T08:05:22.000-07:00
Fixes #5255 Part of microsoft/vscode#204663
diff --git a/addons/addon-webgl/src/TextureAtlas.ts b/addons/addon-webgl/src/TextureAtlas.ts
@@ -306,6 +306,11 @@ export class TextureAtlas implements ITextureAtlas {
         break;
     }
 
+    // Ignore alpha channel when allowTransparency is false
+    if (!this._config.allowTransparency) {
+      result = color.opaque(result);
+    }
+
     return result;
   }
 

Original file line number	Diff line number	Diff line change
`@@ -306,6 +306,11 @@ export class TextureAtlas implements ITextureAtlas {`
`306`	`306`	`break;`
`307`	`307`	`}`
`308`	`308`
	`309`	`+ // Ignore alpha channel when allowTransparency is false`
	`310`	`+ if (!this._config.allowTransparency) {`
	`311`	`+ result = color.opaque(result);`
	`312`	`+ }`
	`313`	`+`
`309`	`314`	`return result;`
`310`	`315`	`}`
`311`	`316`