static std::vector<VT, Allocator> call(T const & t)
{
std::vector<VT, Allocator> res;
std::size_t n = 0;
cl_int err = CL_SUCCESS;
err = Info::get(t, 0, NULL, &n);
OCLM_THROW_IF_EXCEPTION(err, "get_info");
res.resize(n/sizeof(VT));
err = Info::get(t, n, &res[0], NULL);
OCLM_THROW_IF_EXCEPTION(err, "get_info");
return res;
}
void get() const
{
if(e_.empty()) return;
cl_int err = CL_SUCCESS;
err = clWaitForEvents(static_cast<cl_uint>(e_.size()), &e_[0]);
OCLM_THROW_IF_EXCEPTION(err, "clWaitForEvents");
}
static void set_kernel_arg(cl_kernel k, std::size_t idx, Buffer & b)
{
cl_int err = CL_SUCCESS;
err = clSetKernelArg(k, static_cast<cl_uint>(idx)
, static_cast<cl_uint>(sizeof(cl_mem)), &b.mem);
OCLM_THROW_IF_EXCEPTION(err, "clSetKernelArg");
}
static Result call(T const & t)
{
Result r;
cl_int err = CL_SUCCESS;
err = Info::get(t, sizeof(Result), &r, NULL);
OCLM_THROW_IF_EXCEPTION(err, "get_info");
return r;
}
platform_manager::platform_manager()
{
cl_uint n = 0;
cl_int err = ::clGetPlatformIDs(0, NULL, &n);
OCLM_THROW_IF_EXCEPTION(err, "clGetPlatformIDs");
std::vector<cl_platform_id> platform_ids(n);
err = ::clGetPlatformIDs(n, &platform_ids[0], NULL);
OCLM_THROW_IF_EXCEPTION(err, "clGetPlatformIDs");
platforms.resize(n);
std::copy(platform_ids.begin(), platform_ids.end(), platforms.begin());
default_platform = platforms[0];
default_device = default_platform.devices[0];
}
static void read(command_queue const & queue, Buffer & b, std::vector<cl_event> & wait_list, std::vector<cl_event> &events)
{
cl_int err = CL_SUCCESS;
cl_event e(0);
err = clEnqueueReadBuffer(queue, b.mem, false, 0
, b.size* sizeof(typename Buffer::value_type)
, b.data, static_cast<cl_uint>(wait_list.size())
, wait_list.empty() ? 0 : &wait_list[0], &e);
OCLM_THROW_IF_EXCEPTION(err, "clEnqueueReadBuffer");
events.push_back(e);
}
static void create(command_queue const & queue, Buffer & b)
{
cl_int err = CL_SUCCESS;
b.mem = clCreateBuffer(queue.ctx_, CL_MEM_WRITE_ONLY, b.size* sizeof(typename Buffer::value_type), NULL, &err);
OCLM_THROW_IF_EXCEPTION(err, "clCreateBuffer");
}