/*
 * Copyright (c) Advanced Micro Devices, Inc., or its affiliates.
 *
 * SPDX-License-Identifier: MIT
 */

#include "OCLProgramScopeVariables.h"

#include "CL/cl.h"

OCLProgramScopeVariables::OCLProgramScopeVariables() { _numSubTests = 3; }

OCLProgramScopeVariables::~OCLProgramScopeVariables() {}

void OCLProgramScopeVariables::open(unsigned int test, char* units, double& conversion,
                                    unsigned int deviceId) {
  OCLTestImp::open(test, units, conversion, deviceId);
  CHECK_RESULT((error_ != CL_SUCCESS), "error_ opening test");
  silentFailure = false;
  _openTest = test;
  size_t param_size = 0;
  program_ = 0;
  kernel1_ = kernel2_ = 0;
  char* strVersion = 0;
  error_ =
      _wrapper->clGetDeviceInfo(devices_[_deviceId], CL_DEVICE_OPENCL_C_VERSION, 0, 0, &param_size);
  CHECK_RESULT(error_ != CL_SUCCESS, "clGetPlatformInfo failed");
  strVersion = (char*)malloc(param_size);
  error_ = _wrapper->clGetDeviceInfo(devices_[_deviceId], CL_DEVICE_OPENCL_C_VERSION, param_size,
                                     strVersion, 0);
  CHECK_RESULT(error_ != CL_SUCCESS, "clGetPlatformInfo failed");
  if (strVersion[9] < '2') {
    printf("\nOpenCL C 2.0 not supported\n");
    silentFailure = true;
  }
  free(strVersion);
}

static void CL_CALLBACK notify_callback(const char* errinfo, const void* private_info, size_t cb,
                                        void* user_data) {}

void OCLProgramScopeVariables::run(void) {
  if (silentFailure) return;
  switch (_openTest) {
    case 0:
      test0();
      break;
    case 1:
      test1();
      break;
    case 2:
      test2();
      break;
  }
  return;
}

void OCLProgramScopeVariables::test0(void) {
  const char* kernel_str =
      "global int g[1000] = {0}; \n\
        __kernel void test1 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            g[id] = id; \n\
        } \n\
        __kernel void test2 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            A[id] = g[id]; \n\
        } \n";
  const size_t arrSize = 1000;
  cl_uint* output_arr = (cl_uint*)malloc(arrSize * sizeof(cl_uint));
  cl_mem buffer =
      _wrapper->clCreateBuffer(context_, CL_MEM_READ_WRITE, arrSize * sizeof(cl_uint), 0, &error_);
  buffers_.push_back(buffer);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateBuffer failed");
  program_ = _wrapper->clCreateProgramWithSource(context_, 1, &kernel_str, NULL, &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateProgramWithSource failed");
  error_ = _wrapper->clBuildProgram(program_, 1, &devices_[_deviceId], "-cl-std=CL2.0", NULL, NULL);
  if (error_ != CL_SUCCESS) {
    char log[400];
    _wrapper->clGetProgramBuildInfo(program_, devices_[_deviceId], CL_PROGRAM_BUILD_LOG, 400, log,
                                    0);
    printf("\n\n%s\n\n", log);
  }
  CHECK_RESULT((error_ != CL_SUCCESS), "clBuildProgram failed");
  kernel1_ = _wrapper->clCreateKernel(program_, "test1", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel1 failed");
  kernel2_ = _wrapper->clCreateKernel(program_, "test2", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel2 failed");
  error_ = _wrapper->clSetKernelArg(kernel1_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  error_ = _wrapper->clSetKernelArg(kernel2_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  cl_event evt;
  size_t global_work_size = arrSize;
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel1_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  _wrapper->clFinish(cmdQueues_[_deviceId]);
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel2_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  error_ = _wrapper->clEnqueueReadBuffer(cmdQueues_[_deviceId], buffers_[0], CL_TRUE, 0,
                                         sizeof(cl_uint) * arrSize, output_arr, 1, &evt, NULL);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueReadBuffer failed");
  bool bResult = true;
  for (unsigned int i = 0; i < arrSize; ++i) {
    if (output_arr[i] != i) {
      bResult = false;
      break;
    }
  }
  free(output_arr);
  CHECK_RESULT((bResult == false), "Program Scope Variables - test0 failed");
}

void OCLProgramScopeVariables::test1(void) {
  const char* kernel_str =
      "global int temp = 0; \n\
        __kernel void test1 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            if (id == 0) temp = 55; \n\
        } \n\
        __kernel void test2 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            if (id == 0) A[0] = temp; \n\
        } \n";
  cl_uint* output_arr = (cl_uint*)malloc(sizeof(cl_uint));
  cl_mem buffer =
      _wrapper->clCreateBuffer(context_, CL_MEM_READ_WRITE, sizeof(cl_uint), 0, &error_);
  buffers_.push_back(buffer);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateBuffer failed");
  program_ = _wrapper->clCreateProgramWithSource(context_, 1, &kernel_str, NULL, &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateProgramWithSource failed");
  error_ = _wrapper->clBuildProgram(program_, 1, &devices_[_deviceId], "-cl-std=CL2.0", NULL, NULL);
  if (error_ != CL_SUCCESS) {
    char log[400];
    _wrapper->clGetProgramBuildInfo(program_, devices_[_deviceId], CL_PROGRAM_BUILD_LOG, 400, log,
                                    0);
    printf("\n\n%s\n\n", log);
  }
  CHECK_RESULT((error_ != CL_SUCCESS), "clBuildProgram failed");
  kernel1_ = _wrapper->clCreateKernel(program_, "test1", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel1 failed");
  kernel2_ = _wrapper->clCreateKernel(program_, "test2", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel2 failed");
  error_ = _wrapper->clSetKernelArg(kernel1_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  error_ = _wrapper->clSetKernelArg(kernel2_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  cl_event evt;
  size_t global_work_size = 1;
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel1_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  _wrapper->clFinish(cmdQueues_[_deviceId]);
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel2_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  error_ = _wrapper->clEnqueueReadBuffer(cmdQueues_[_deviceId], buffers_[0], CL_TRUE, 0,
                                         sizeof(cl_uint), output_arr, 1, &evt, NULL);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueReadBuffer failed");
  bool bResult = (output_arr[0] == 55);
  free(output_arr);
  CHECK_RESULT((bResult == false), "Program Scope Variables - test1 failed");
}

void OCLProgramScopeVariables::test2(void) {
  const char* kernel_str =
      "global int temp = 0; \n\
        global int* ptr[] = {&temp}; \n\
        __kernel void test1 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            if (id == 0) temp = 65; \n\
        } \n\
        __kernel void test2 (global unsigned int * A) \n\
        { \n\
            int id = get_global_id(0);  \n\
            if (id == 0) A[0] = *ptr[0]; \n\
        } \n";
  cl_uint* output_arr = (cl_uint*)malloc(sizeof(cl_uint));
  cl_mem buffer =
      _wrapper->clCreateBuffer(context_, CL_MEM_READ_WRITE, sizeof(cl_uint), 0, &error_);
  buffers_.push_back(buffer);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateBuffer failed");
  program_ = _wrapper->clCreateProgramWithSource(context_, 1, &kernel_str, NULL, &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateProgramWithSource failed");
  error_ = _wrapper->clBuildProgram(program_, 1, &devices_[_deviceId], "-cl-std=CL2.0", NULL, NULL);
  if (error_ != CL_SUCCESS) {
    char log[400];
    _wrapper->clGetProgramBuildInfo(program_, devices_[_deviceId], CL_PROGRAM_BUILD_LOG, 400, log,
                                    0);
    printf("\n\n%s\n\n", log);
  }
  CHECK_RESULT((error_ != CL_SUCCESS), "clBuildProgram failed");
  kernel1_ = _wrapper->clCreateKernel(program_, "test1", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel1 failed");
  kernel2_ = _wrapper->clCreateKernel(program_, "test2", &error_);
  CHECK_RESULT((error_ != CL_SUCCESS), "clCreateKernel2 failed");
  error_ = _wrapper->clSetKernelArg(kernel1_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  error_ = _wrapper->clSetKernelArg(kernel2_, 0, sizeof(cl_mem), (void*)&buffers_[0]);
  CHECK_RESULT((error_ != CL_SUCCESS), "clSetKernelArg failed");
  cl_event evt;
  size_t global_work_size = 1;
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel1_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  _wrapper->clFinish(cmdQueues_[_deviceId]);
  error_ = _wrapper->clEnqueueNDRangeKernel(cmdQueues_[_deviceId], kernel2_, 1, NULL,
                                            &global_work_size, NULL, 0, NULL, &evt);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueNDRangeKernel");
  error_ = _wrapper->clEnqueueReadBuffer(cmdQueues_[_deviceId], buffers_[0], CL_TRUE, 0,
                                         sizeof(cl_uint), output_arr, 1, &evt, NULL);
  CHECK_RESULT((error_ != CL_SUCCESS), "clEnqueueReadBuffer failed");
  bool bResult = (output_arr[0] == 65);
  free(output_arr);
  CHECK_RESULT((bResult == false), "Program Scope Variables - test2 failed");
}

unsigned int OCLProgramScopeVariables::close(void) {
  if (kernel1_) {
    error_ = _wrapper->clReleaseKernel(kernel1_);
    CHECK_RESULT_NO_RETURN(error_ != CL_SUCCESS, "clReleaseKernel1 failed");
    kernel1_ = 0;
  }
  if (kernel2_) {
    error_ = _wrapper->clReleaseKernel(kernel2_);
    CHECK_RESULT_NO_RETURN(error_ != CL_SUCCESS, "clReleaseKernel2 failed");
    kernel2_ = 0;
  }
  return OCLTestImp::close();
}
