[Bug 100088] piglit.spec.arb_get_texture_sub_image.arb_get_texture_sub_image regressions

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100088

            Bug ID: 100088
           Summary: piglit.spec.arb_get_texture_sub_image.arb_get_texture_
                    sub_image regressions
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: samuel.pitoiset at gmail.com
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org
                CC: maraeo at gmail.com

On all intel hardware, the following piglit tests regressed:

piglit.spec.arb_get_texture_sub_image.arb_get_texture_sub_image-errors
piglit.spec.arb_get_texture_sub_image.arb_get_texture_sub_image-cubemap
piglit.spec.arb_get_texture_sub_image.arb_get_texture_sub_image-get

by:
5ae54c0cf7acfb792d2ca9b22cd5fb5ba811d32c
Author:     Samuel Pitoiset <samuel.pitoiset at gmail.com>
getteximage: avoid to lookup textures with id 0

This fixes the following assertion when the key is 0.

main/hash.c:181: _mesa_HashLookup_unlocked: Assertion `key' failed.

Fixes: 633c959fae ("getteximage: Return correct error value when texure object
is not found")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>


EG:
/tmp/build_root/m64/lib/piglit/bin/arb_get_texture_sub_image-get -auto -fbo
Testing GL_TEXTURE_1D GL_RGB 64 x 1 x 1
Failure for GL_TEXTURE_1D:
Unexpected GL error: GL_INVALID_VALUE 0x501
(Error at ../tests/spec/arb_get_texture_sub_image/get.c:388)

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