func (im *Image) Info(param ImageInfo) (uint32, error) {
var ret uint32
if err := C.clGetImageInfo(im.id, C.cl_image_info(param), C.size_t(8), unsafe.Pointer(&ret), nil); err != C.CL_SUCCESS {
return 0, Cl_error(err)
}
return ret, nil
}
func (i *Image) Property(prop ImageProperty) Size {
if value, ok := i.properties[prop]; ok {
return value
}
var data C.size_t
var length C.size_t
if ret := C.clGetImageInfo(i.id, C.cl_image_info(prop), C.size_t(unsafe.Sizeof(data)), unsafe.Pointer(&data), &length); ret != C.CL_SUCCESS {
return 0
}
i.properties[prop] = Size(data)
return i.properties[prop]
}
func (ip ImageInfoParam) toCl() C.cl_image_info {
return C.cl_image_info(ip)
}
// see https://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html
func GetImageInfo(mem Mem, paramName ImageInfo, paramValueSize uint64, paramValue unsafe.Pointer, paramValueSizeRet *uint64) ErrorCode {
return ErrorCode(C.clGetImageInfo(mem, C.cl_image_info(paramName), C.size_t(paramValueSize), paramValue, (*C.size_t)(paramValueSizeRet)))
}
func CLGetImageInfo(image CL_mem,
param_name CL_image_info,
param_value_size CL_size_t,
param_value *interface{},
param_value_size_ret *CL_size_t) CL_int {
if (param_value_size == 0 || param_value == nil) && param_value_size_ret == nil {
return CL_INVALID_VALUE
} else {
var c_param_value_size_ret C.size_t
var c_errcode_ret C.cl_int
if param_value_size == 0 || param_value == nil {
c_errcode_ret = C.clGetImageInfo(image.cl_mem,
C.cl_image_info(param_name),
C.size_t(param_value_size),
nil,
&c_param_value_size_ret)
} else {
switch param_name {
case CL_IMAGE_FORMAT:
var value C.cl_image_format
c_errcode_ret = C.clGetImageInfo(image.cl_mem,
C.cl_image_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_image_format{CL_channel_order(value.image_channel_order),
CL_channel_type(value.image_channel_data_type)}
case CL_IMAGE_ELEMENT_SIZE,
CL_IMAGE_ROW_PITCH,
CL_IMAGE_SLICE_PITCH,
CL_IMAGE_HEIGHT,
CL_IMAGE_WIDTH,
CL_IMAGE_DEPTH,
CL_IMAGE_ARRAY_SIZE:
var value C.size_t
c_errcode_ret = C.clGetImageInfo(image.cl_mem,
C.cl_image_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_size_t(value)
case CL_IMAGE_BUFFER:
var value C.cl_mem
c_errcode_ret = C.clGetImageInfo(image.cl_mem,
C.cl_image_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_mem{value}
case CL_IMAGE_NUM_MIP_LEVELS,
CL_IMAGE_NUM_SAMPLES:
var value C.cl_uint
c_errcode_ret = C.clGetImageInfo(image.cl_mem,
C.cl_image_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_uint(value)
default:
return CL_INVALID_VALUE
}
}
if param_value_size_ret != nil {
*param_value_size_ret = CL_size_t(c_param_value_size_ret)
}
return CL_int(c_errcode_ret)
}
}