From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 15 Sep 2021 17:17:38 +0000 (+0300)
Subject: Nudge the FrameFormat floating-point flag one bit to the left
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=9904aa3d09458098541fdce0114785d6bce1777f;p=libs%2Fgl.git

Nudge the FrameFormat floating-point flag one bit to the left

This puts it in the same position as the corresponding flag in
VertexAttribute.
---

diff --git a/source/core/frameformat.cpp b/source/core/frameformat.cpp
index 30d7a47f..f023aba7 100644
--- a/source/core/frameformat.cpp
+++ b/source/core/frameformat.cpp
@@ -89,7 +89,7 @@ FrameAttachment make_typed_attachment(FrameAttachment fa, PixelFormat pf)
 	}
 
 	DataType type = get_component_type(pf);
-	return static_cast<FrameAttachment>((fa&0xFC00) | (is_float(type)*0x80) | get_type_size(type)<<4 | get_component_count(comp));
+	return static_cast<FrameAttachment>((fa&0xFC00) | (is_float(type)*0x100) | get_type_size(type)<<4 | get_component_count(comp));
 }
 
 FrameAttachment make_indexed_attachment(FrameAttachment fa, unsigned i)
@@ -115,7 +115,7 @@ PixelFormat get_attachment_pixelformat(UInt16 fa)
 		comp = static_cast<PixelComponents>(fa&7);
 
 	DataType type;
-	if(fa&0x80)
+	if(fa&0x100)
 		type = static_cast<DataType>((fa&0x70)>>4 | 0x300);
 	else
 		type = static_cast<DataType>((fa&0x70)>>4);
diff --git a/source/core/frameformat.h b/source/core/frameformat.h
index 45ea9198..c67586a9 100644
--- a/source/core/frameformat.h
+++ b/source/core/frameformat.h
@@ -11,10 +11,10 @@ namespace GL {
 Describes a single attachment of a framebuffer.  The values are bitfields laid
 as follows:
 
-nnnn nn__ fsss _ccc
-      │   │  │    └╴Number of components
-      │   │  └─────╴Size of one component
-      │   └────────╴Floating-point flag
+nnnn nn_f _sss _ccc
+      │ │    │    └╴Number of components
+      │ │    └─────╴Size of one component
+      │ └──────────╴Floating-point flag
       └────────────╴Attachment index
 
 This information is presented for internal documentation purposes only; it is
@@ -23,7 +23,7 @@ inadvisable for programs to rely on it.
 enum FrameAttachment
 {
 	COLOR_ATTACHMENT = 0x0014,
-	DEPTH_ATTACHMENT = 0xF8C1,
+	DEPTH_ATTACHMENT = 0xF941,
 	STENCIL_ATTACHMENT = 0xFC11
 };