Bug 105975

Summary:	i965 always reports 0 viewport subpixel bits
Product:	Mesa	Reporter:	Józef Kucia <joseph.kucia>
Component:	Drivers/DRI/i965	Assignee:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Status:	RESOLVED FIXED	QA Contact:	Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity:	normal
Priority:	medium	CC:	danylo.piliaiev, joseph.kucia
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Józef Kucia 2018-04-10 21:53:52 UTC

The driver doesn't seem to report the actual value.

Comment 1 Danylo 2018-06-18 12:56:10 UTC

I have sent the patch to fix this: https://patchwork.freedesktop.org/patch/230063/

Comment 2 Tapani Pälli 2018-08-21 05:47:25 UTC

commit 25ec806eb249603ad0364365ab620628cf25f031
Author: Danylo Piliaiev <danylo.piliaiev@gmail.com>
Date:   Mon Jun 18 15:50:57 2018 +0300

    i965: Advertise 8 bits subpixel precision for viewport bounds on gen6+
    
    We use floating-points for viewport bounds so VIEWPORT_SUBPIXEL_BITS
    should reflect this.
    
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105975
    
    Signed-off-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
    Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

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