From d49b39bf37789f5ff6d9a64628c7d3b2f2444746 Mon Sep 17 00:00:00 2001
From: andrewlewis <andrewlewis@google.com>
Date: Thu, 18 Nov 2021 12:31:25 +0000
Subject: [PATCH] Fix gldemo

The GL program needs to be used before accessing its attributes.

#minor-release

PiperOrigin-RevId: 410768017
---
 .../androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/demos/gl/src/main/java/androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java b/demos/gl/src/main/java/androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java
index ab2960d5c5..f20ee3e0c6 100644
--- a/demos/gl/src/main/java/androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java
+++ b/demos/gl/src/main/java/androidx/media3/demo/gl/BitmapOverlayVideoProcessor.java
@@ -88,6 +88,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
     } catch (IOException e) {
       throw new IllegalStateException(e);
     }
+    program.use();
     GlUtil.Attribute[] attributes = program.getAttributes();
     for (GlUtil.Attribute attribute : attributes) {
       if (attribute.name.equals("a_position")) {
@@ -142,7 +143,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
     // Run the shader program.
     GlUtil.Uniform[] uniforms = checkNotNull(this.uniforms);
     GlUtil.Attribute[] attributes = checkNotNull(this.attributes);
-    checkNotNull(program).use();
     for (GlUtil.Uniform uniform : uniforms) {
       switch (uniform.name) {
         case "tex_sampler_0":