From 30548f17653a86fbff21035df66ff76532919d05 Mon Sep 17 00:00:00 2001
From: ZZYZX <zzyzx@virtual>
Date: Wed, 23 Nov 2022 18:43:51 +0200
Subject: [PATCH] Fixed crash on AMD hardware (resolves #820 reported by
 AlexMax)

---
 Source/Native/OpenGL/GLRenderDevice.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Source/Native/OpenGL/GLRenderDevice.cpp b/Source/Native/OpenGL/GLRenderDevice.cpp
index 8d2c7c0d..77e8382f 100644
--- a/Source/Native/OpenGL/GLRenderDevice.cpp
+++ b/Source/Native/OpenGL/GLRenderDevice.cpp
@@ -607,7 +607,11 @@ bool GLRenderDevice::SetVertexBufferData(VertexBuffer* ibuffer, void* data, int6
 	buffer->BufferStartIndex = buffer->BufferOffset / (format == VertexFormat::Flat ? VertexBuffer::FlatStride : VertexBuffer::WorldStride);
 	sharedbuf->NextPos += size;
 
-	glBufferSubData(GL_ARRAY_BUFFER, buffer->BufferOffset, size, data);
+	if (data)
+	{
+		glBufferSubData(GL_ARRAY_BUFFER, buffer->BufferOffset, size, data);
+	}
+
 	glBindBuffer(GL_ARRAY_BUFFER, oldbinding);
 	bool result = CheckGLError();
 	return result;