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platform.c
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platform.c
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/**
* The OpenCL PHP extension
*
* @package php-opencl
* @author Ryusuke SEKIYAMA <rsky0711@gmail.com>
* @copyright 2012 Ryusuke SEKIYAMA
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
#include "platform.h"
/* {{{ type definitions */
typedef struct {
const char *key;
cl_platform_info name;
} phpcl_platform_info_param_t;
/* }}} */
/* {{{ globals */
static const phpcl_platform_info_param_t platform_info_list[] = {
{ "profile", CL_PLATFORM_PROFILE },
{ "version", CL_PLATFORM_VERSION },
{ "name", CL_PLATFORM_NAME },
{ "vendor", CL_PLATFORM_VENDOR },
{ "extensions", CL_PLATFORM_EXTENSIONS },
{ NULL, 0 }
};
/* }}} */
/* {{{ function prototypes */
static zval *phpcl_get_platform_info(cl_platform_id platform TSRMLS_DC);
/* }}} */
/* {{{ array cl_get_platform_ids(void) */
PHP_FUNCTION(cl_get_platform_ids)
{
cl_int err = CL_SUCCESS;
cl_uint num_entries = 0;
cl_platform_id *platforms = NULL;
cl_uint index = 0;
RETVAL_FALSE;
if (ZEND_NUM_ARGS() != 0) {
WRONG_PARAM_COUNT;
}
err = clGetPlatformIDs(0, NULL, &num_entries);
if (err != CL_SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"clGetPlatformIDs() failed [%s]", phpcl_errstr(err));
}
platforms = ecalloc(num_entries, sizeof(cl_platform_id));
if (!platforms) {
return;
}
err = clGetPlatformIDs(num_entries, platforms, NULL);
if (err != CL_SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"clGetPlatformIDs() failed [%s]", phpcl_errstr(err));
efree(platforms);
return;
}
array_init_size(return_value, num_entries);
for (index = 0; index < num_entries; index++) {
cl_platform_id platform = platforms[index];
zval *entry;
MAKE_STD_ZVAL(entry);
ZEND_REGISTER_RESOURCE(entry, platform, phpcl_le_platform());
add_next_index_zval(return_value, entry);
}
efree(platforms);
}
/* }}} */
/* {{{ array cl_get_platform_info(resource cl_platform_id platform) */
PHP_FUNCTION(cl_get_platform_info)
{
zval *zid = NULL;
cl_platform_id platform = NULL;
zval *platform_info = NULL;
RETVAL_FALSE;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
"r", &zid) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(platform, cl_platform_id, &zid, -1,
"cl_platform_id", phpcl_le_platform());
platform_info = phpcl_get_platform_info(platform TSRMLS_CC);
if (platform_info) {
RETURN_ZVAL(platform_info, 0, 1);
}
}
/* }}} */
/* {{{ phpcl_get_platform_info() */
static zval *phpcl_get_platform_info(cl_platform_id platform TSRMLS_DC)
{
const phpcl_platform_info_param_t *param = platform_info_list;
cl_int err = CL_SUCCESS;
char buf[1024] = { 0 };
size_t len = 0;
zval *zinfo;
MAKE_STD_ZVAL(zinfo);
array_init_size(zinfo, 8);
snprintf(buf, sizeof(buf), "%p", platform);
add_assoc_string(zinfo, "id", buf, 1);
while (param->key != NULL) {
err = clGetPlatformInfo(platform, param->name, sizeof(buf), buf, &len);
if (err == CL_SUCCESS) {
add_assoc_stringl(zinfo, param->key, buf, len, 1);
} else {
add_assoc_null(zinfo, param->key);
}
param++;
}
return zinfo;
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/