> Probably the extension is still not enumerated in device/platform > extensions list > Any way it can be used now. > > Thanks, > Alexander >
Since it was a private extension it is not visible as device extension but > if one asks for the function pointer it is there. The implementation was > done 3-4 years ago, I can dig the driver eversion if needed. > I will check with developer if he plans to expose it in device extension > list. > Mikhail > No, you cannot query extension which is not present in enumeration: A non-NULL return value for *clGetExtensionFunctionAddressForPlatform* does > not guarantee that an extension function is actually supported by the > platform > ... > The behavior of calling a device extension function on a device not > supporting that extension is undefined. > So, I suppose that as in case of OpenGL world, trying to use function from extension not listed in extensions might lead to application crash (at least on Linux). Regards, Kirill _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
