From c2fd70ba90ff4fd2fd285588949ce331db8f6aed Mon Sep 17 00:00:00 2001
From: Popov72 <github@evpopov.com>
Date: Tue, 4 Jul 2023 10:45:13 +0200
Subject: [PATCH] Fix crash when disposing effect or engine while shader
 compiled in parallel

---
 packages/dev/core/src/Engines/WebGL/webGLPipelineContext.ts | 4 ++++
 packages/dev/core/src/Engines/thinEngine.ts                 | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/packages/dev/core/src/Engines/WebGL/webGLPipelineContext.ts b/packages/dev/core/src/Engines/WebGL/webGLPipelineContext.ts
index e9626288767..88b27932dca 100644
--- a/packages/dev/core/src/Engines/WebGL/webGLPipelineContext.ts
+++ b/packages/dev/core/src/Engines/WebGL/webGLPipelineContext.ts
@@ -23,6 +23,9 @@ export class WebGLPipelineContext implements IPipelineContext {
     public programLinkError: Nullable<string> = null;
     public programValidationError: Nullable<string> = null;
 
+    /** @internal */
+    public _isDisposed = false;
+
     public get isAsync() {
         return this.isParallelCompiled;
     }
@@ -90,6 +93,7 @@ export class WebGLPipelineContext implements IPipelineContext {
      **/
     public dispose() {
         this._uniforms = {};
+        this._isDisposed = true;
     }
 
     /**
diff --git a/packages/dev/core/src/Engines/thinEngine.ts b/packages/dev/core/src/Engines/thinEngine.ts
index 2ace45b261d..5f1835995a2 100644
--- a/packages/dev/core/src/Engines/thinEngine.ts
+++ b/packages/dev/core/src/Engines/thinEngine.ts
@@ -3134,6 +3134,9 @@ export class ThinEngine {
      */
     public _isRenderingStateCompiled(pipelineContext: IPipelineContext): boolean {
         const webGLPipelineContext = pipelineContext as WebGLPipelineContext;
+        if (this._isDisposed || webGLPipelineContext._isDisposed) {
+            return false;
+        }
         if (this._gl.getProgramParameter(webGLPipelineContext.program!, this._caps.parallelShaderCompile!.COMPLETION_STATUS_KHR)) {
             this._finalizePipelineContext(webGLPipelineContext);
             return true;