From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 12 Nov 2021 16:22:16 +0000 (+0200)
Subject: Allow BGR format in FrameAttachment, but disallow swizzled formats
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=f0081c84106c3aead61e48f76d52bd92b61ed131;p=libs%2Fgl.git

Allow BGR format in FrameAttachment, but disallow swizzled formats

Vulkan likes to use BGR for swapchain images, at least on my machine
---

diff --git a/source/core/frameformat.cpp b/source/core/frameformat.cpp
index fefb3582..649693a4 100644
--- a/source/core/frameformat.cpp
+++ b/source/core/frameformat.cpp
@@ -78,7 +78,9 @@ FrameAttachment make_typed_attachment(FrameAttachment fa, PixelFormat pf)
 	}
 	else
 	{
-		if(comp!=RED && comp!=RG && comp!=RGB && comp!=RGBA)
+		if(comp!=RED && comp!=RG && comp!=RGB && comp!=RGBA && comp!=BGR && comp!=BGRA)
+			throw invalid_argument("make_typed_attachment");
+		if(get_required_swizzle(comp))
 			throw invalid_argument("make_typed_attachment");
 	}