Esempio n. 1
0
func CLCreateContextFromType(properties []CL_context_properties,
	device_type CL_device_type,
	pfn_notify CL_ctx_notify,
	user_data unsafe.Pointer,
	errcode_ret *CL_int) CL_context {

	var c_errcode_ret C.cl_int
	var c_context C.cl_context

	if pfn_notify == nil && user_data != nil {
		c_errcode_ret = CL_INVALID_VALUE
		c_context = nil
	} else {
		var c_properties []C.cl_context_properties
		var c_properties_ptr *C.cl_context_properties

		if properties != nil {
			c_properties = make([]C.cl_context_properties, len(properties))
			for i := 0; i < len(properties); i++ {
				c_properties[i] = C.cl_context_properties(properties[i])
			}
			c_properties_ptr = &c_properties[0]
		} else {
			c_properties_ptr = nil
		}

		if pfn_notify != nil {
			//var c_user_data []unsafe.Pointer
			//c_user_data = make([]unsafe.Pointer, 2)
			arr := C.allocArray(2)
			c_user_data := (*[2]C.pVoid)(unsafe.Pointer(arr))[:]
			c_user_data[0] = (C.pVoid)(user_data)
			c_user_data[1] = (C.pVoid)(unsafe.Pointer(&pfn_notify))

			ctx_notify[unsafe.Pointer(&pfn_notify)] = pfn_notify

			c_context = C.CLCreateContextFromType(c_properties_ptr,
				C.cl_device_type(device_type),
				unsafe.Pointer(&c_user_data),
				&c_errcode_ret)

			C.freeArray(arr)
		} else {
			c_context = C.clCreateContextFromType(c_properties_ptr,
				C.cl_device_type(device_type),
				nil,
				nil,
				&c_errcode_ret)
		}
	}

	if errcode_ret != nil {
		*errcode_ret = CL_int(c_errcode_ret)
	}

	return CL_context{c_context}
}
Esempio n. 2
0
func CLCreateContextFromType(properties []CL_context_properties,
	device_type CL_device_type,
	pfn_notify CL_ctx_notify,
	user_data unsafe.Pointer,
	errcode_ret *CL_int) CL_context {

	var c_errcode_ret C.cl_int
	var c_context C.cl_context

	if pfn_notify == nil && user_data != nil {
		c_errcode_ret = CL_INVALID_VALUE
		c_context = nil
	} else {
		var c_properties []C.cl_context_properties
		var c_properties_ptr *C.cl_context_properties

		if properties != nil {
			c_properties = make([]C.cl_context_properties, len(properties))
			for i := 0; i < len(properties); i++ {
				c_properties[i] = C.cl_context_properties(properties[i])
			}
			c_properties_ptr = &c_properties[0]
		} else {
			c_properties_ptr = nil
		}

		if pfn_notify != nil {
			var c_user_data []unsafe.Pointer
			c_user_data = make([]unsafe.Pointer, 2)
			c_user_data[0] = user_data
			c_user_data[1] = unsafe.Pointer(&pfn_notify)

			ctx_notify[c_user_data[1]] = pfn_notify

			c_context = C.CLCreateContextFromType(c_properties_ptr,
				C.cl_device_type(device_type),
				unsafe.Pointer(&c_user_data),
				&c_errcode_ret)

		} else {
			c_context = C.clCreateContextFromType(c_properties_ptr,
				C.cl_device_type(device_type),
				nil,
				nil,
				&c_errcode_ret)
		}
	}

	if errcode_ret != nil {
		*errcode_ret = CL_int(c_errcode_ret)
	}

	return CL_context{c_context}
}
Esempio n. 3
0
func createParameters(params map[ContextParameter]interface{}) ([]C.cl_context_properties, error) {
	c_params := make([]C.cl_context_properties, (len(params)<<1)+1)
	i := 0
	for param, value := range params {
		c_params[i] = C.cl_context_properties(param)

		switch param {
		case CONTEXT_PLATFORM:
			if v, ok := value.(Platform); ok {
				c_params[i+1] = C.PlatformToContextParameter(v.id)
			} else {
				return nil, Cl_error(C.CL_INVALID_VALUE)
			}

		default:
			return nil, Cl_error(C.CL_INVALID_VALUE)
		}
		i += 2
	}
	c_params[i] = 0

	return c_params, nil
}
Esempio n. 4
0
func CLCreateContext(properties []CL_context_properties,
	num_devices CL_uint,
	devices []CL_device_id,
	pfn_notify CL_ctx_notify,
	user_data unsafe.Pointer,
	errcode_ret *CL_int) CL_context {

	var c_errcode_ret C.cl_int
	var c_context C.cl_context

	if num_devices == 0 || devices == nil || (pfn_notify == nil && user_data != nil) {
		c_errcode_ret = CL_INVALID_VALUE
		c_context = nil
	} else {
		var c_properties []C.cl_context_properties
		var c_properties_ptr *C.cl_context_properties
		var c_devices []C.cl_device_id
		var c_devices_ptr *C.cl_device_id

		if properties != nil {
			c_properties = make([]C.cl_context_properties, len(properties))
			for i := 0; i < len(properties); i++ {
				c_properties[i] = C.cl_context_properties(properties[i])
			}
			c_properties_ptr = &c_properties[0]
		} else {
			c_properties_ptr = nil
		}

		if devices != nil {
			c_devices = make([]C.cl_device_id, len(devices))
			for i := 0; i < len(devices); i++ {
				c_devices[i] = C.cl_device_id(devices[i].cl_device_id)
			}
			c_devices_ptr = &c_devices[0]
		} else {
			c_devices_ptr = nil
		}

		if pfn_notify != nil {
			var c_user_data []unsafe.Pointer
			c_user_data = make([]unsafe.Pointer, 2)
			c_user_data[0] = user_data
			c_user_data[1] = unsafe.Pointer(&pfn_notify)

			ctx_notify[c_user_data[1]] = pfn_notify

			c_context = C.CLCreateContext(c_properties_ptr,
				C.cl_uint(len(c_devices)),
				c_devices_ptr,
				unsafe.Pointer(&c_user_data),
				&c_errcode_ret)

		} else {
			c_context = C.clCreateContext(c_properties_ptr,
				C.cl_uint(len(c_devices)),
				c_devices_ptr,
				nil,
				nil,
				&c_errcode_ret)

		}
	}

	if errcode_ret != nil {
		*errcode_ret = CL_int(c_errcode_ret)
	}

	return CL_context{c_context}
}
Esempio n. 5
0
func CreateContext(platform *Platform, devType DeviceType) *Context {
	var ctx Context
	var error C.cl_int
	properties := []C.cl_context_properties{CL_CONTEXT_PLATFORM, C.platform2property(platform.item), C.cl_context_properties(0)}
	ctx.item = C.clCreateContextFromType(&properties[0], C.cl_device_type(devType), nil, nil, &error)
	fmt.Printf("Context error:%d\n", error)
	return &ctx
}