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Paul Berry authored
On drivers that set gl_shader_compiler_options::LowerClipDistance (for example i965), references to gl_ClipDistance (a float[8] array) will be converted to references to gl_ClipDistanceMESA (a vec4[2] array). This patch modifies the linker so that requests for transform feedback of gl_ClipDistance are similarly converted. Fixes Piglit test "EXT_transform_feedback/builtin-varyings gl_ClipDistance". Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
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