---
title: GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT
framework: OpenGL ES
role: symbol
role_heading: Global Variable
platforms: [iOS 2.0+, iPadOS 2.0+, Mac Catalyst 2.0+, tvOS 9.0+, visionOS 1.0+]
path: opengles/gl_compressed_srgb_pvrtc_4bppv1_ext
---

# GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT

## Declaration

```swift
var GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT: Int32 { get }
```