meta: Abort meta pbo path if readpixels need signed-unsigned conversion
Meta pbo path for ReadPixels rely on BlitFramebuffer which doesn't support signed to unsigned integer conversions and vice versa. Without this patch, piglit test fbo_integer_readpixels_sint_uint fails, when forced to use the meta pbo path. v2: Make need_signed_unsigned_int_conversion() a static function. (Iago) Bump up the comment and the commit message. (Jason) Signed-off-by:Anuj Phogat <anuj.phogat@gmail.com> Cc: <mesa-stable@lists.freedesktop.org> Reviewed-by:
Jason Ekstrand <jason.ekstrand@intel.com> Reviewed-by:
Iago Toral <itoral@igalia.com>
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