[Bug 106601] The internal format RGB32F is not color-renderable, This is not in accordance with Opengl 3.0 spec - bugzilla-daemon

From: bugzilla-daemon@freedesktop.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 106601] The internal format RGB32F is not color-renderable, This is not in accordance with Opengl 3.0 spec
Date: Tue, 22 May 2018 06:22:31 +0000	[thread overview]
Message-ID: <bug-106601-502-WabsIRpnYp@http.bugs.freedesktop.org/> (raw)
In-Reply-To: <bug-106601-502@http.bugs.freedesktop.org/>

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https://bugs.freedesktop.org/show_bug.cgi?id=106601

--- Comment #3 from wangjingbin <jingbin.wang@intel.com> ---
Produce steps:
1. Attached file is the C source code;
2. Build the source file(I built it on Ubuntu 17.04, Intel® HD Graphics
(KabyLake 3x8 GT2)), "gcc -o copySubImageFloatRGB copySubImageFloatRGB.c -lX11
-lepoxy";
3. run "./copySubImageFloatRGB", will print message as follow:
        Visual 0xb9 selected
        Render: Mesa DRI Intel(R) HD Graphics 630 (Kaby Lake GT2)
        Version: 3.0 Mesa 17.1.4

       233 glCheckFramebufferStatus error no = 0x8cdd.

The error is result from that the FBO is not completeness when the internal
format of attached image is RGB32F. In another word, The internal format RGB32F
is not color-renderable. 
According to GL 3.0 Spec description, Section 4.4 page 291 and Table 3.16 Page
184, The internal format RGB32F is color-renderable

In additional, I have run this test application on Nvidia graphic, it work
successfully

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