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memory.go
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memory.go
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package cl
/*
#include "cl.h"
extern void go_mem_notify(cl_mem memobj, void *user_data);
static void CL_CALLBACK
c_mem_notify(cl_mem memobj, void *user_data)
{
go_mem_notify(memobj, user_data);
}
static cl_int
CLSetMemObjectDestructorCallback(cl_mem memobj, void *user_data)
{
return clSetMemObjectDestructorCallback(memobj, c_mem_notify, user_data);
}
*/
import "C"
import (
"unsafe"
)
type CL_mem_notify func(memobj CL_mem, user_data unsafe.Pointer)
var mem_notify map[C.cl_mem]CL_mem_notify
func init() {
mem_notify = make(map[C.cl_mem]CL_mem_notify)
}
//export go_mem_notify
func go_mem_notify(memobj C.cl_mem, user_data unsafe.Pointer) {
mem_notify[memobj](CL_mem{memobj}, user_data)
}
func CLRetainMemObject(memobj CL_mem) CL_int {
return CL_int(C.clRetainMemObject(memobj.cl_mem))
}
func CLReleaseMemObject(memobj CL_mem) CL_int {
return CL_int(C.clReleaseMemObject(memobj.cl_mem))
}
func CLSetMemObjectDestructorCallback(memobj CL_mem,
pfn_notify CL_mem_notify,
user_data unsafe.Pointer) CL_int {
if pfn_notify != nil {
mem_notify[memobj.cl_mem] = pfn_notify
return CL_int(C.CLSetMemObjectDestructorCallback(memobj.cl_mem, user_data))
} else {
return CL_int(C.clSetMemObjectDestructorCallback(memobj.cl_mem, nil, nil))
}
}
func CLEnqueueUnmapMemObject(command_queue CL_command_queue,
memobj CL_mem,
mapped_ptr unsafe.Pointer,
num_events_in_wait_list CL_uint,
event_wait_list []CL_event,
event *CL_event) CL_int {
if (num_events_in_wait_list == 0 && event_wait_list != nil) ||
(num_events_in_wait_list != 0 && event_wait_list == nil) ||
int(num_events_in_wait_list) != len(event_wait_list) {
return CL_INVALID_EVENT_WAIT_LIST
}
var c_event C.cl_event
var c_errcode_ret C.cl_int
if num_events_in_wait_list != 0 {
var c_event_wait_list []C.cl_event
c_event_wait_list = make([]C.cl_event, num_events_in_wait_list)
for i := 0; i < int(num_events_in_wait_list); i++ {
c_event_wait_list[i] = event_wait_list[i].cl_event
}
c_errcode_ret = C.clEnqueueUnmapMemObject(command_queue.cl_command_queue,
memobj.cl_mem,
mapped_ptr,
C.cl_uint(num_events_in_wait_list),
&c_event_wait_list[0],
&c_event)
} else {
c_errcode_ret = C.clEnqueueUnmapMemObject(command_queue.cl_command_queue,
memobj.cl_mem,
mapped_ptr,
0,
nil,
&c_event)
}
if event != nil {
event.cl_event = c_event
}
return CL_int(c_errcode_ret)
}
func CLGetMemObjectInfo(memobj CL_mem,
param_name CL_mem_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.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
nil,
&c_param_value_size_ret)
} else {
switch param_name {
case CL_MEM_TYPE:
var value C.cl_mem_object_type
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_mem_object_type(value)
case CL_MEM_FLAGS:
var value C.cl_mem_flags
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_mem_flags(value)
case CL_MEM_SIZE,
CL_MEM_OFFSET:
var value C.size_t
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_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_MEM_HOST_PTR:
var value unsafe.Pointer
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = value
case CL_MEM_MAP_COUNT,
CL_MEM_REFERENCE_COUNT:
var value C.cl_uint
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_uint(value)
case CL_MEM_CONTEXT:
var value C.cl_context
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_context{value}
case CL_MEM_ASSOCIATED_MEMOBJECT:
var value C.cl_mem
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_mem{value}
case CL_MEM_USES_SVM_POINTER:
var value C.cl_bool
c_errcode_ret = C.clGetMemObjectInfo(memobj.cl_mem,
C.cl_mem_info(param_name),
C.size_t(param_value_size),
unsafe.Pointer(&value),
&c_param_value_size_ret)
*param_value = CL_bool(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)
}
}