Bug 105975

Summary: i965 always reports 0 viewport subpixel bits
Product: Mesa Reporter: Józef Kucia <joseph.kucia>
Component: Drivers/DRI/i965Assignee: 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   
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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