Modify clGetContextInfo using cl_get_info_helper.

Signed-off-by: Junyan He <junyan.he@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/src/cl_api_context.c b/src/cl_api_context.c
new file mode 100644
index 00000000..21699c49
--- /dev/null
+++ b/src/cl_api_context.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "cl_context.h"
+
+cl_int
+clGetContextInfo(cl_context context,
+                 cl_context_info param_name,
+                 size_t param_value_size,
+                 void *param_value,
+                 size_t *param_value_size_ret)
+{
+  const void *src_ptr = NULL;
+  size_t src_size = 0;
+  cl_uint n, ref;
+  cl_context_properties p;
+
+  if (!CL_OBJECT_IS_CONTEXT(context)) {
+    return CL_INVALID_CONTEXT;
+  }
+
+  if (param_name == CL_CONTEXT_DEVICES) {
+    src_ptr = &context->device;
+    src_size = sizeof(cl_device_id);
+  } else if (param_name == CL_CONTEXT_NUM_DEVICES) {
+    n = 1;
+    src_ptr = &n;
+    src_size = sizeof(cl_uint);
+  } else if (param_name == CL_CONTEXT_REFERENCE_COUNT) {
+    ref = CL_OBJECT_GET_REF(context);
+    src_ptr = &ref;
+    src_size = sizeof(cl_uint);
+  } else if (param_name == CL_CONTEXT_PROPERTIES) {
+    if (context->prop_len > 0) {
+      src_ptr = context->prop_user;
+      src_size = sizeof(cl_context_properties) * context->prop_len;
+    } else {
+      p = 0;
+      src_ptr = &p;
+      src_size = sizeof(cl_context_properties);
+    }
+  } else {
+    return CL_INVALID_VALUE;
+  }
+
+  return cl_get_info_helper(src_ptr, src_size,
+                            param_value, param_value_size, param_value_size_ret);
+}