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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"
#include "params.h"

#define get_info ((phpcl_get_info_func_t)_get_platform_info)
#define get_info_ex NULL

/* {{{ globals */

static const phpcl_info_param_t platform_info_params[] = {
{ "profile", CL_PLATFORM_PROFILE, INFO_TYPE_STRING },
{ "version", CL_PLATFORM_VERSION, INFO_TYPE_STRING },
{ "name", CL_PLATFORM_NAME, INFO_TYPE_STRING },
{ "vendor", CL_PLATFORM_VENDOR, INFO_TYPE_STRING },
{ "extensions", CL_PLATFORM_EXTENSIONS, INFO_TYPE_STRING },
{ NULL, 0, 0 }
};

/* }}} */
/* {{{ _get_platform_info() */

static cl_int _get_platform_info(cl_platform_id platform,
                                 void *reserved __attribute__ ((unused)),
                                 cl_platform_info name,
                                 size_t value_size,
                                 void *value,
                                 size_t *value_size_ret)
{
return clGetPlatformInfo(platform, name, value_size, value, value_size_ret);
}

/* }}} */
/* {{{ _get_platform_info_all() */

static void _get_platform_info_all(
INTERNAL_FUNCTION_PARAMETERS,
cl_platform_id platform)
{
const phpcl_info_param_t *param = platform_info_params;
char buf[32] = {0};

array_init_size(return_value, 8);
snprintf(buf, sizeof(buf), "%p", platform);
add_assoc_string(return_value, "id", buf, 1);

while (param->key != NULL) {
zval *entry = phpcl_get_info(get_info, get_info_ex,
platform, NULL, param TSRMLS_CC);
if (entry) {
add_assoc_zval(return_value, param->key, entry);
} else {
add_assoc_null(return_value, param->key);
}
param++;
}
}

/* }}} */
/* {{{ _get_platform_info_by_name() */

static void _get_platform_info_by_name(
INTERNAL_FUNCTION_PARAMETERS,
cl_platform_id platform, cl_int name)
{
const phpcl_info_param_t *param = platform_info_params;

RETVAL_NULL();

while (param->key != NULL) {
if (param->name == name) {
zval *entry = phpcl_get_info(get_info, get_info_ex,
platform, NULL, param TSRMLS_CC);
if (entry) {
RETVAL_ZVAL(entry, 0, 1);
}
return;
}
param++;
}
}

/* }}} */
/* {{{ mixed cl_get_platform_info(resource cl_platform platform[, int name]) */

PHPCL_FUNCTION(cl_get_platform_info)
{
zval *zid = NULL;
cl_platform_id platform = NULL;
long name = 0;

RETVAL_FALSE;

if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
"r|l", &zid, &name) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(platform, cl_platform_id, &zid, -1,
"cl_platform", phpcl_le_platform());

if (ZEND_NUM_ARGS() == 2) {
_get_platform_info_by_name(INTERNAL_FUNCTION_PARAM_PASSTHRU, platform, (cl_int)name);
} else {
_get_platform_info_all(INTERNAL_FUNCTION_PARAM_PASSTHRU, platform);
}
}

/* }}} */
/* {{{ array cl_get_platform_ids(void) */

PHPCL_FUNCTION(cl_get_platform_ids)
{
cl_int errcode = 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;
}

errcode = clGetPlatformIDs(0, NULL, &num_entries);
if (errcode != CL_SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"clGetPlatformIDs() failed [%s]", phpcl_errstr(errcode));
}

platforms = ecalloc(num_entries, sizeof(cl_platform_id));
if (!platforms) {
return;
}

errcode = clGetPlatformIDs(num_entries, platforms, NULL);
if (errcode != CL_SUCCESS) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,
"clGetPlatformIDs() failed [%s]", phpcl_errstr(errcode));
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);
}

/* }}} */

/*
* 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
*/
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