[Mesa-dev] [Bug 78716] Fix Mesa bugs for running Unreal Engine 4.1 Cave effects demo compiled for Linux

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78716

--- Comment #3 from Tapani Pälli <lemody at gmail.com> ---
OK finally got it going. Demo may need compute and tesselation support (?) as
it queries following enums:

GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS
GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS
GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS
GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS
GL_MAX_COMPUTE_UNIFORM_COMPONENTS
GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS

After some more investigations found out that demo uses ARB_texture_multisample
(requires GL_MAX_COLOR_TEXTURE_SAMPLES > 0) and has GLSL 1.50 shaders. I get
numerous errors from failing resource file loads so I stopped there, this is
what I'm getting:

LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/Checkerboard.png' error.
LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/Icons/DefaultAppIcon.png' error.
LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/Checkerboard.png' error.
LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/SplineFilterTable.png' error.
LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/Old/White.png' error.
LogStreaming:Warning: Failed to read file
'../../../Engine/Content/Slate/Common/BoxShadow.png' error.
...

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