From eba8b43987f6bb63102a337e8f538ad3da81510b Mon Sep 17 00:00:00 2001
From: Ryusuke SEKIYAMA <rsky0711@gmail.com>
Date: Sun, 2 Sep 2012 17:39:14 +0900
Subject: [PATCH] Prepare to convert between PHP types and OpenCL C types.

---
 params.c     | 19 +++++++++++++++++++
 params.h     |  8 +++++++-
 php_opencl.h |  2 +-
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/params.c b/params.c
index 9af9f59..c4933e5 100644
--- a/params.c
+++ b/params.c
@@ -57,6 +57,25 @@ cl_device_id *phpcl_get_devicecs(zval *zv, int argno, cl_uint *num_devices_ret T
 	return devices;
 }
 
+/* }}} */
+/* {{{ phpcl_convert_zval_to_c() */
+
+zend_bool phpcl_convert_zval_to_c(zval *zv, phpcl_c_type_t type,
+	void **value_ptr_ret, size_t *size_ret TSRMLS_DC)
+{
+	/* not yet implemented */
+	return 0;
+}
+
+/* }}} */
+/* {{{ phpcl_convert_c_to_zval() */
+
+zval *phpcl_convert_c_to_zval(void *value_ptr, phpcl_c_type_t type TSRMLS_DC)
+{
+	/* not yet implemented */
+	return NULL;
+}
+
 /* }}} */
 
 /*
diff --git a/params.h b/params.h
index 525b284..9b71dc0 100644
--- a/params.h
+++ b/params.h
@@ -14,7 +14,13 @@
 
 zend_bool phpcl_is_callable(zval *zv, int argno TSRMLS_DC);
 
-cl_device_id *phpcl_get_devicecs(zval *zv, int argno, cl_uint *num_devices_ret TSRMLS_DC);
+cl_device_id *phpcl_get_devicecs(zval *zv, int argno,
+	cl_uint *num_devices_ret TSRMLS_DC);
+
+zend_bool phpcl_convert_zval_to_c(zval *zv, phpcl_c_type_t type,
+	void **value_ptr_ret, size_t *size_ret TSRMLS_DC);
+
+zval *phpcl_convert_c_to_zval(void *value_ptr, phpcl_c_type_t type TSRMLS_DC);
 
 #endif
 
diff --git a/php_opencl.h b/php_opencl.h
index f9386da..8a9ab96 100644
--- a/php_opencl.h
+++ b/php_opencl.h
@@ -101,7 +101,7 @@ typedef enum {
 	/* pointer */
 	C_TYPE_MEM_PTR,
 	C_TYPE_NULL_PTR
-} phpcl_opencl_c_type_t;
+} phpcl_c_type_t;
 
 typedef struct {
 	cl_context context;