From 0b8677ed06822a42d105fbc8a43c65d4adbc48cd Mon Sep 17 00:00:00 2001
From: simon chen <kungfuchen@gmail.com>
Date: Wed, 31 Mar 2021 10:50:19 +0800
Subject: [PATCH] fix update bug when compressed texture create with
 BGFX_TEXTURE_SRGB (#2437)

Co-authored-by: chenmou.cm <chenmou.cm@alibaba-inc.com>
---
 src/renderer_gl.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/renderer_gl.cpp b/src/renderer_gl.cpp
index 41595ba0b..087975171 100644
--- a/src/renderer_gl.cpp
+++ b/src/renderer_gl.cpp
@@ -5638,7 +5638,10 @@ namespace bgfx { namespace gl
 				bimg::imageCopy(temp, width, height, 1, bpp, srcpitch, data);
 				data = temp;
 			}
-
+			const GLenum internalFmt = (0 != (m_flags & BGFX_TEXTURE_SRGB))
+				? s_textureFormat[m_textureFormat].m_internalFmtSrgb
+				: s_textureFormat[m_textureFormat].m_internalFmt
+				;
 			GL_CHECK(compressedTexSubImage(target+_side
 				, _mip
 				, _rect.m_x
@@ -5647,7 +5650,7 @@ namespace bgfx { namespace gl
 				, _rect.m_width
 				, _rect.m_height
 				, _depth
-				, m_fmt
+				, internalFmt
 				, _mem->size
 				, data
 				) );