func (p *Program) BuildProgram(devices []*Device, options string) error {
var cOptions *C.char
if options != "" {
cOptions = C.CString(options)
defer C.free(unsafe.Pointer(cOptions))
}
var deviceList []C.cl_device_id
var deviceListPtr *C.cl_device_id
numDevices := C.cl_uint(0)
if devices != nil && len(devices) > 0 {
deviceList = buildDeviceIdList(devices)
deviceListPtr = &deviceList[0]
}
if err := C.clBuildProgram(p.clProgram, numDevices, deviceListPtr, cOptions, nil, nil); err != C.CL_SUCCESS {
buffer := make([]byte, 4096)
var bLen C.size_t
var err C.cl_int
for i := 2; i >= 0; i-- {
err = C.clGetProgramBuildInfo(p.clProgram, p.devices[0].id, C.CL_PROGRAM_BUILD_LOG, C.size_t(len(buffer)), unsafe.Pointer(&buffer[0]), &bLen)
if err == C.CL_INVALID_VALUE && i > 0 && bLen < 1024*1024 {
// INVALID_VALUE probably means our buffer isn't large enough
buffer = make([]byte, bLen)
} else {
break
}
}
if err != C.CL_SUCCESS {
return toError(err)
}
return BuildError(string(buffer[:bLen]))
}
return nil
}
func (p *Program) BuildProgram(devices []*Device, options string) error {
var cOptions *C.char
if options != "" {
cOptions = C.CString(options)
defer C.free(unsafe.Pointer(cOptions))
}
var deviceList []C.cl_device_id
var deviceListPtr *C.cl_device_id
if devices != nil && len(devices) > 0 {
deviceList = buildDeviceIdList(devices)
deviceListPtr = &deviceList[0]
}
numDevices := C.cl_uint(len(deviceList))
if err := C.clBuildProgram(p.clProgram, numDevices, deviceListPtr, cOptions, nil, nil); err != C.CL_SUCCESS {
if err != C.CL_BUILD_PROGRAM_FAILURE {
return toError(err)
}
var bLen C.size_t
var err C.cl_int
err = C.clGetProgramBuildInfo(p.clProgram, p.devices[0].id, C.CL_PROGRAM_BUILD_LOG, 0, nil, &bLen)
if err != C.CL_SUCCESS {
return toError(err)
}
buffer := make([]byte, bLen)
err = C.clGetProgramBuildInfo(p.clProgram, p.devices[0].id, C.CL_PROGRAM_BUILD_LOG, C.size_t(len(buffer)), unsafe.Pointer(&buffer[0]), &bLen)
if err != C.CL_SUCCESS {
return toError(err)
}
return BuildError(string(buffer[:bLen-1]))
}
return nil
}
// see https://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html
func BuildProgram(prog Program, numDevices uint32, devices *DeviceId, options *uint8, notify func(Program, interface{}), userdata interface{}) ErrorCode {
var f *[0]byte
var u unsafe.Pointer
if notify != nil {
pobch := programCallbackHolder{notify, userdata}
pochHolder[&pobch] = struct{}{}
f = (*[0]byte)(C.programCallback)
u = unsafe.Pointer(&pobch)
}
return ErrorCode(C.clBuildProgram(prog, C.cl_uint(numDevices), (*C.cl_device_id)(unsafe.Pointer(devices)), (*C.char)(unsafe.Pointer(options)), f, u))
}
func (p *Program) Build(devices []Device, options string) error {
cs := C.CString(options)
defer C.free(unsafe.Pointer(cs))
if len(devices) < 1 {
if ret := C.clBuildProgram(p.id, 0, nil, cs, nil, nil); ret != C.CL_SUCCESS {
return Cl_error(ret)
}
return nil
}
c_devices := make([]C.cl_device_id, len(devices))
for i, device := range devices {
c_devices[i] = device.id
}
if ret := C.clBuildProgram(p.id, C.cl_uint(len(c_devices)), &c_devices[0], cs, nil, nil); ret != C.CL_SUCCESS {
return Cl_error(ret)
}
return nil
}
func (p *Program) BuildProgram(devices []*Device, options string) error {
var optBuffer bytes.Buffer
optBuffer.WriteString("-cl-std=CL1.2 -cl-kernel-arg-info ")
var cOptions *C.char
if options != "" {
optBuffer.WriteString(options)
}
cOptions = C.CString(optBuffer.String())
defer C.free(unsafe.Pointer(cOptions))
var deviceList []C.cl_device_id
var deviceListPtr *C.cl_device_id
numDevices := C.cl_uint(len(devices))
if devices != nil && len(devices) > 0 {
deviceList = buildDeviceIdList(devices)
deviceListPtr = &deviceList[0]
}
if err := C.clBuildProgram(p.clProgram, numDevices, deviceListPtr, cOptions, nil, nil); err != C.CL_SUCCESS {
buffer := make([]byte, 4096)
var bLen C.size_t
var err C.cl_int
for _, dev := range p.devices {
for i := 2; i >= 0; i-- {
err = C.clGetProgramBuildInfo(p.clProgram, dev.id, C.CL_PROGRAM_BUILD_LOG, C.size_t(len(buffer)), unsafe.Pointer(&buffer[0]), &bLen)
if err == C.CL_INVALID_VALUE && i > 0 && bLen < 1024*1024 {
// INVALID_VALUE probably means our buffer isn't large enough
buffer = make([]byte, bLen)
} else {
break
}
}
if err != C.CL_SUCCESS {
return toError(err)
}
if bLen > 1 {
return BuildError{
Device: dev,
Message: string(buffer[:bLen-1]),
}
}
}
return BuildError{
Device: nil,
Message: "build failed and produced no log entries",
}
}
return nil
}
func CLBuildProgram(program CL_program,
num_devices CL_uint,
devices []CL_device_id,
options []byte,
pfn_notify CL_prg_notify,
user_data unsafe.Pointer) CL_int {
if (num_devices == 0 && devices != nil) ||
(num_devices != 0 && devices == nil) ||
(pfn_notify == nil && user_data != nil) {
return CL_INVALID_VALUE
}
var c_devices []C.cl_device_id
var c_options *C.char
var c_errcode_ret C.cl_int
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)
}
if options != nil {
c_options = C.CString(string(options))
defer C.free(unsafe.Pointer(c_options))
} else {
c_options = nil
}
if pfn_notify != nil {
prg_notify[program.cl_program] = pfn_notify
c_errcode_ret = C.CLBuildProgram(program.cl_program,
C.cl_uint(num_devices),
&c_devices[0],
c_options,
user_data)
} else {
c_errcode_ret = C.clBuildProgram(program.cl_program,
C.cl_uint(num_devices),
&c_devices[0],
c_options,
nil,
nil)
}
return CL_int(c_errcode_ret)
}
func (c *Context) NewProgramFromSource(prog string) (*Program, error) {
var c_program C.cl_program
var err C.cl_int
cs := C.CString(prog)
defer C.free(unsafe.Pointer(cs))
if c_program = C.clCreateProgramWithSource(c.id, 1, &cs, (*C.size_t)(nil), &err); err != C.CL_SUCCESS {
return nil, Cl_error(err)
} else if err = C.clBuildProgram(c_program, 0, nil, nil, nil, nil); err != C.CL_SUCCESS {
C.clReleaseProgram(c_program)
return nil, Cl_error(err)
}
program := &Program{id: c_program}
runtime.SetFinalizer(program, (*Program).release)
return program, nil
}