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wflinfo: add GLSL version information to wflinfo

Lina Versace requested to merge dcbaker:submit/add-glsl-version into master

Created by: dcbaker

wflinfo: add GLSL version information to wflinfo

For versions that do not provide a shader version (GL ES 1.x, GL < 2.0) print "None", otherwise print the value of GL_SHADING_LANGUAGE_VERSION.

None was picked because it is simple, obvious, and unlike N/A can't be expanded into multiple meanings

v2: - Don't print for gles1, since gles1 doesn't have a shading language and will always return FLINFO_GL_ERROR v3: - Print 'None' for GL ES 1.x and GL < 2.0 - Only print shader_version in verbose mode

Fixes: https://github.com/waffle-gl/waffle/issues/16 Signed-off-by: Dylan Baker dylanx.c.baker@intel.com Reviewed-by: Chad Versace chad.versace@linux.intel.com

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