[Bug 75292] New: [ILK Bisected]Piglit spec_ARB_depth_texture_fbo-clear-formats fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75292

          Priority: high
            Bug ID: 75292
                CC: idr at freedesktop.org
          Assignee: eric at anholt.net
           Summary: [ILK Bisected]Piglit
                    spec_ARB_depth_texture_fbo-clear-formats fails
        QA Contact: intel-3d-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: huax.lu at intel.com
          Hardware: All
            Status: NEW
           Version: unspecified
         Component: Drivers/DRI/i965
           Product: Mesa

System Environment:
--------------------------
Platform: Ironlake
Libdrm:       
(master)libdrm-2.4.52-4-gc5de5abbd90333fe1359283fb3a5e457b0f389f3
Mesa:        (master)57405605a8c320f9d6ea389afd43ce6f013330a5
Xserver:   
(master)xorg-server-1.15.0-627-gf34dc7fa96457ea6a0703493d74e63cca357712e
Xf86_video_intel:(master)2.99.910-47-gc91af569ee90a832899c9038badd84921e9a87fc
Cairo:        (master)4144307dbfbe7b297135d9ea4b080cae7e06b997
Libva:        (staging)fae9c44816a4c3cfc480d2879d1b4a0c1c3a1527
Libva_intel_driver:(staging)bd630edd844b88ea543a027654db296ff7da16cd
Kernel:    (drm-intel-nightly) 164a4cb4c1431a0689f85507868356fae24da638

Bug detailed description:
-------------------------
It fails on Ironlake with mesa master branch, works well on 10.1 branch.
Following piglit cases also fail with same bisect commit:
spec_ARB_depth_buffer_float_fbo-clear-formats
spec_EXT_packed_depth_stencil_fbo-clear-formats

Bisect shows: f128bcc7c293013f4b44e4b661638333de0077c2 is the first bad commit.
commit f128bcc7c293013f4b44e4b661638333de0077c2
Author:     Eric Anholt <eric at anholt.net>
AuthorDate: Fri Feb 14 13:00:40 2014 -0800
Commit:     Eric Anholt <eric at anholt.net>
CommitDate: Tue Feb 18 10:01:45 2014 -0800

    i965: Drop mt->levels[].width/height.

    It often confused people because it was unclear on whether it was the
    physical or logical, and people needed the other one as well.  We can
    recompute it trivially using the minify() macro, clarifying which value is
    being used and making getting the other value obvious.

    v2: Fix a pasteo in intel_blit.c's dst flip.

    Reviewed-by: Chris Forbes <chrisf at ijw.co.nz> (v1)
    Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

output:
Using test set: GL_ARB_depth_texture
Testing GL_DEPTH_COMPONENT
Probe color at (516,2)
  Expected: 0.250000 0.250000 0.250000
  Observed: 0.000000 0.000000 0.000000
PIGLIT:subtest {'GL_DEPTH_COMPONENT' : 'fail'}
Testing GL_DEPTH_COMPONENT16
Probe color at (516,2)
  Expected: 0.250000 0.250000 0.250000
  Observed: 0.000000 0.000000 0.000000
PIGLIT:subtest {'GL_DEPTH_COMPONENT16' : 'fail'}
Testing GL_DEPTH_COMPONENT24
Probe color at (516,2)
  Expected: 0.250000 0.250000 0.250000
  Observed: 0.000000 0.000000 0.000000
PIGLIT:subtest {'GL_DEPTH_COMPONENT24' : 'fail'}
Testing GL_DEPTH_COMPONENT32
Probe color at (516,2)
  Expected: 0.250000 0.250000 0.250000
  Observed: 0.000000 0.000000 0.000000
PIGLIT:subtest {'GL_DEPTH_COMPONENT32' : 'fail'}
PIGLIT: {'result': 'fail' }

Reproduce steps:
-------------------------
1. xinit
2. ./bin/fbo-clear-formats GL_ARB_depth_texture -fbo -auto

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