desktop: validate OpenCL drivers before use.

OpenCL validation needs to happen before drivers are used in
anger. This should isolate any crashes, and/or mis-behavior to
We use app version, CL driver version and file time-stamp to
trigger re-testing the device. If anything fails: hard disable
OpenCL.

We use an opencl validation sheet (cl-test.ods) and install it.
It is a minimal CL set - it requires a very short formula group
length, and combines several CL functions into few formulae to
test more.

The sheet structure, in particular the manual squaring / SQRT is
necessary to stick within the default CL subset, and ensure that
formulae are CL enabled from the root of the dependency tree up.

Change-Id: I18682dbdf9a8ba9c16d52bad4447e9acce97f0a3
Reviewed-on: https://gerrit.libreoffice.org/27131
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/desktop/inc/app.hxx b/desktop/inc/app.hxx
index 1905cf0c1d7c..c90bfdb0d7d7 100644
--- a/desktop/inc/app.hxx
+++ b/desktop/inc/app.hxx
@@ -84,6 +84,7 @@ class Desktop : public Application
 
         static void             OpenClients();
         static void             OpenDefault();
+        static void             CheckOpenCLCompute(const css::uno::Reference<css::frame::XDesktop2> &);
 
         DECL_STATIC_LINK_TYPED( Desktop, EnableAcceptors_Impl, void*, void);