///
// Display information for a particular platform.
// Assumes that all calls to clGetPlatformInfo returns
// a value of type char[], which is valid for OpenCL 1.1.
//
func DisplayPlatformInfo(id cl.CL_platform_id,
name cl.CL_platform_info,
str string) {
var errNum cl.CL_int
var paramValueSize cl.CL_size_t
errNum = cl.CLGetPlatformInfo(id,
name,
0,
nil,
¶mValueSize)
if errNum != cl.CL_SUCCESS {
fmt.Printf("Failed to find OpenCL platform %s.\n", str)
return
}
var info interface{}
errNum = cl.CLGetPlatformInfo(id,
name,
paramValueSize,
&info,
nil)
if errNum != cl.CL_SUCCESS {
fmt.Printf("Failed to find OpenCL platform %s.\n", str)
return
}
fmt.Printf("\t%-24s: %v\n", str, info)
}
func (this *platform) GetInfo(param_name cl.CL_platform_info) (interface{}, error) {
/* param data */
var param_value interface{}
var param_size cl.CL_size_t
var errCode cl.CL_int
/* Find size of param data */
if errCode = cl.CLGetPlatformInfo(this.platform_id, param_name, 0, nil, ¶m_size); errCode != cl.CL_SUCCESS {
return nil, fmt.Errorf("GetInfo failure with errcode_ret %d: %s", errCode, cl.ERROR_CODES_STRINGS[-errCode])
}
/* Access param data */
if errCode = cl.CLGetPlatformInfo(this.platform_id, param_name, param_size, ¶m_value, nil); errCode != cl.CL_SUCCESS {
return nil, fmt.Errorf("GetInfo failure with errcode_ret %d: %s", errCode, cl.ERROR_CODES_STRINGS[-errCode])
}
return param_value, nil
}
func TestPlatform(t *testing.T) {
/* Host data structures */
var platforms []cl.CL_platform_id
var num_platforms cl.CL_uint
var err, i, platform_index cl.CL_int
platform_index = -1
/* Extension data */
var ext_data interface{}
var ext_size cl.CL_size_t
const icd_ext string = "cl_khr_icd"
err = cl.CLGetPlatformIDs(1, platforms, &num_platforms)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't find any platforms.")
}
err = cl.CLGetPlatformIDs(0, platforms, &num_platforms)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't find any platforms.")
}
err = cl.CLGetPlatformIDs(1, platforms, nil)
if err != cl.CL_INVALID_VALUE {
t.Errorf("Couldn't find any platforms.")
}
/* Find number of platforms */
err = cl.CLGetPlatformIDs(1, nil, &num_platforms)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't find any platforms.")
}
/* Access all installed platforms */
platforms = make([]cl.CL_platform_id, num_platforms)
err = cl.CLGetPlatformIDs(0, platforms, nil)
if err == cl.CL_SUCCESS {
t.Errorf("Couldn't get any platforms.")
}
err = cl.CLGetPlatformIDs(num_platforms, platforms, nil)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't get any platforms.")
}
/* Find extensions of all platforms */
for i = 0; i < cl.CL_int(num_platforms); i++ {
err = cl.CLGetPlatformInfo(platforms[i],
cl.CL_PLATFORM_EXTENSIONS, 100, nil, &ext_size)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't read extension data.")
}
/* Find size of extension data */
err = cl.CLGetPlatformInfo(platforms[i],
cl.CL_PLATFORM_EXTENSIONS, 0, nil, &ext_size)
if err != cl.CL_SUCCESS {
t.Errorf("Couldn't read extension data.")
}
err = cl.CLGetPlatformInfo(platforms[i], cl.CL_PLATFORM_EXTENSIONS,
0, &ext_data, nil)
if err == cl.CL_SUCCESS {
t.Errorf("Platform %d supports extensions", i)
}
/* Access extension data */
err = cl.CLGetPlatformInfo(platforms[i], cl.CL_PLATFORM_EXTENSIONS,
ext_size, &ext_data, nil)
if err == cl.CL_SUCCESS {
t.Logf("Platform %d supports extensions: %s\n", i, ext_data)
}
/* Look for ICD extension */
if strings.Contains(ext_data.(string), icd_ext) {
platform_index = i
break
}
}
/* Display whether ICD extension is supported */
if platform_index > -1 {
t.Logf("Platform %d supports the %s extension.\n", platform_index, icd_ext)
} else {
t.Logf("No platforms support the %s extension.\n", icd_ext)
}
}