/*
 * Copyright (c) 2020 The Khronos Group Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * OpenCL is a trademark of Apple Inc. used under license by Khronos.
 */

#include "icd_print_layer.h"

struct _cl_icd_dispatch dispatch = {NULL};

const struct _cl_icd_dispatch *tdispatch;

CL_API_ENTRY cl_int CL_API_CALL
clGetLayerInfo(
    cl_layer_info  param_name,
    size_t         param_value_size,
    void          *param_value,
    size_t        *param_value_size_ret) {
  if (param_value_size && !param_value)
    return CL_INVALID_VALUE;
  if (!param_value && !param_value_size_ret)
    return CL_INVALID_VALUE;
  switch (param_name) {
  case CL_LAYER_API_VERSION:
    if (param_value_size < sizeof(cl_layer_api_version))
      return CL_INVALID_VALUE;
    if (param_value)
      *((cl_layer_api_version *)param_value) = CL_LAYER_API_VERSION_100;
    if (param_value_size_ret)
      *param_value_size_ret = sizeof(cl_layer_api_version);
    break;
  default:
    return CL_INVALID_VALUE;
  }
  return CL_SUCCESS;
}

CL_API_ENTRY cl_int CL_API_CALL
clInitLayer(
    cl_uint                         num_entries,
    const struct _cl_icd_dispatch  *target_dispatch,
    cl_uint                        *num_entries_out,
    const struct _cl_icd_dispatch **layer_dispatch_ret) {
  if (!target_dispatch || !layer_dispatch_ret ||!num_entries_out || num_entries < sizeof(dispatch)/sizeof(dispatch.clGetPlatformIDs))
    return CL_INVALID_VALUE;

  _init_dispatch();

  tdispatch = target_dispatch;
  *layer_dispatch_ret = &dispatch;
  *num_entries_out = sizeof(dispatch)/sizeof(dispatch.clGetPlatformIDs);
  return CL_SUCCESS;
}