func (k *Kernel) SetArg(index uint, arg interface{}) error {
var ret C.cl_int
switch t := arg.(type) {
case *Buffer: // can't use *Image here, compiler bug?
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(t.id)), unsafe.Pointer(&t.id))
case *Image:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(t.id)), unsafe.Pointer(&t.id))
case float32:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(4), unsafe.Pointer(&t))
case []float32:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(len(t)*4), unsafe.Pointer(&t[0]))
case *float32:
var p *C.float
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(p)), unsafe.Pointer(&t))
default:
return Cl_error(C.CL_INVALID_VALUE)
}
if ret != C.CL_SUCCESS {
return Cl_error(ret)
}
return nil
}
func CLSetKernelArg(kernel CL_kernel,
arg_index CL_uint,
arg_size CL_size_t,
arg_value unsafe.Pointer) CL_int {
return CL_int(C.clSetKernelArg(kernel.cl_kernel,
C.cl_uint(arg_index),
C.size_t(arg_size),
arg_value))
}
func (k *Kernel) SetArg(index uint, arg interface{}) error {
var ret C.cl_int
switch t := arg.(type) {
case *Buffer:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(t.id)), unsafe.Pointer(&t.id))
case *Image:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(t.id)), unsafe.Pointer(&t.id))
case *Sampler:
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(t.id)), unsafe.Pointer(&t.id))
case float32:
f := C.float(t)
ret = C.clSetKernelArg(k.id, C.cl_uint(index), C.size_t(unsafe.Sizeof(f)), unsafe.Pointer(&f))
default:
return Cl_error(C.CL_INVALID_VALUE)
}
if ret != C.CL_SUCCESS {
return Cl_error(ret)
}
return nil
}
// see https://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html
func SetKernelArg(ker Kernel, argIndex uint32, argSize uint64, argValue unsafe.Pointer) ErrorCode {
return ErrorCode(C.clSetKernelArg(ker, C.cl_uint(argIndex), C.size_t(argSize), argValue))
}
func (k *Kernel) SetArgUnsafe(index, argSize int, arg unsafe.Pointer) error {
return toError(C.clSetKernelArg(k.clKernel, C.cl_uint(index), C.size_t(argSize), arg))
}