[Bug 97321] Query INFO_LOG_LENGTH for empty info log should return 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97321

Tapani Pälli <lemody at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #18 from Tapani Pälli <lemody at gmail.com> ---
commit ec4e71f75e9b8a1c427994efa32a61593e3172f9
Author: Tapani Pälli <tapani.palli at intel.com>
Date:   Wed Aug 17 10:37:45 2016 +0300

    mesa: fix empty program log length

    In case we have empty log (""), we should return 0. This fixes
    Khronos WebGL conformance test 'program-infolog'.

    From OpenGL ES 3.1 (and OpenGL 4.5 Core) spec:
       "If pname is INFO_LOG_LENGTH , the length of the info log, including
        a null terminator, is returned. If there is no info log, zero is
        returned."

    v2: apply same fix for get_shaderiv and _mesa_GetProgramPipelineiv (Ian)

    Signed-off-by: Tapani Pälli <tapani.palli at intel.com>
    Reviewed-by: Iago Toral Quiroga <itoral at igalia.com> (v1)
    Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
    Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97321
    Cc: "13.0" <mesa-stable at lists.freedesktop.org>

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