void
context::get_version(cl_context ctx, int *major, int *minor)
{
cl_device_id s_buff[16];
size_t size;
pyopencl_buf<cl_device_id> d_buff(0);
cl_device_id *devs = s_buff;
pyopencl_call_guarded(clGetContextInfo, ctx, CL_CONTEXT_DEVICES,
0, nullptr, buf_arg(size));
if (PYOPENCL_UNLIKELY(!size)) {
throw clerror("Context.get_version", CL_INVALID_VALUE,
"Cannot get devices from context.");
}
if (PYOPENCL_UNLIKELY(size > sizeof(s_buff))) {
d_buff.resize(size / sizeof(cl_device_id));
devs = d_buff.get();
}
pyopencl_call_guarded(clGetContextInfo, ctx, CL_CONTEXT_DEVICES,
size_arg(devs, size), buf_arg(size));
device::get_version(devs[0], major, minor);
}
void
platform::get_version(cl_platform_id plat, int *major, int *minor)
{
char s_buff[128];
size_t size;
pyopencl_buf<char> d_buff(0);
char *name = s_buff;
pyopencl_call_guarded(clGetPlatformInfo, plat, CL_PLATFORM_VERSION,
0, nullptr, buf_arg(size));
if (PYOPENCL_UNLIKELY(size > sizeof(s_buff))) {
d_buff.resize(size);
name = d_buff.get();
}
pyopencl_call_guarded(clGetPlatformInfo, plat, CL_PLATFORM_VERSION,
size_arg(name, size), buf_arg(size));
std::cmatch ver_match;
if (!std::regex_match(name, ver_match, ver_regex)) {
throw clerror("Platform.get_version", CL_INVALID_VALUE,
"platform returned non-conformant "
"platform version string");
}
*major = atoi(name + ver_match.position(1));
*minor = atoi(name + ver_match.position(2));
}
