rocm-systems/catch/unit/texture/hipTextureObjFetchVector.cc

/*
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*/

#include <hip_test_common.hh>
#include <vector>
#include <iostream>

template <typename T>
__global__ void tex1dKernelFetch(T *val, hipTextureObject_t obj, int N) {
#if !defined(__HIP_NO_IMAGE_SUPPORT) || !__HIP_NO_IMAGE_SUPPORT
  int k = blockIdx.x * blockDim.x + threadIdx.x;
  if (k < N) {
    val[k] = tex1Dfetch<T>(obj, k);
  }
#endif
}

template <typename T>
static inline __host__ __device__ constexpr int rank() {
  return sizeof(T) / sizeof(decltype(T::x));
}

template<typename T>
static inline T getRandom() {
  double r = 0;
  if (std::is_signed < T > ::value) {
    r = (std::rand() - RAND_MAX / 2.0) / (RAND_MAX / 2.0 + 1.);
  } else {
    r = std::rand() / (RAND_MAX + 1.);
  }
  return static_cast<T>(std::numeric_limits < T > ::max() * r);
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 1>::type* = nullptr>
static inline void initVal(T &val) {
  val.x = getRandom<decltype(T::x)>();
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 2>::type* = nullptr>
static inline void initVal(T &val) {
  val.x = getRandom<decltype(T::x)>();
  val.y = getRandom<decltype(T::x)>();
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 4>::type* = nullptr>
static inline void initVal(T &val) {
  val.x = getRandom<decltype(T::x)>();
  val.y = getRandom<decltype(T::x)>();
  val.z = getRandom<decltype(T::x)>();
  val.w = getRandom<decltype(T::x)>();
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 1>::type* = nullptr>
static inline void printVector(T &val) {
  using B = decltype(T::x);
  constexpr bool isChar = std::is_same<B, char>::value
      || std::is_same<B, unsigned char>::value;
  std::cout << "(";
  std::cout << (isChar ? static_cast<int>(val.x) : val.x);
  std::cout << ")";
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 2>::type* = nullptr>
static inline void printVector(T &val) {
  using B = decltype(T::x);
  constexpr bool isChar = std::is_same<B, char>::value
      || std::is_same<B, unsigned char>::value;
  std::cout << "(";
  std::cout << (isChar ? static_cast<int>(val.x) : val.x);
  std::cout << ", " << (isChar ? static_cast<int>(val.y) : val.y);
  std::cout << ")";
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 4>::type* = nullptr>
static inline void printVector(T &val) {
  using B = decltype(T::x);
  constexpr bool isChar = std::is_same<B, char>::value
      || std::is_same<B, unsigned char>::value;
  std::cout << "(";
  std::cout << (isChar ? static_cast<int>(val.x) : val.x);
  std::cout << ", " << (isChar ? static_cast<int>(val.y) : val.y);
  std::cout << ", " << (isChar ? static_cast<int>(val.z) : val.z);
  std::cout << ", " << (isChar ? static_cast<int>(val.w) : val.w);
  std::cout << ")";
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 1>::type* = nullptr>
static inline bool isEqual(const T &val0, const T &val1) {
  return val0.x == val1.x;
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 2>::type* = nullptr>
static inline bool isEqual(const T &val0, const T &val1) {
  return val0.x == val1.x &&
         val0.y == val1.y;
}

template<
  typename T,
  typename std::enable_if<rank<T>() == 4>::type* = nullptr>
static inline bool isEqual(const T &val0, const T &val1) {
  return val0.x == val1.x &&
         val0.y == val1.y &&
         val0.z == val1.z &&
         val0.w == val1.w;
}

template<typename T>
bool runTest(const char *description) {
  const int N = 1024;
  bool testResult = true;
  // Allocating the required buffer on gpu device
  T *texBuf, *texBufOut;
  T val[N], output[N];
  printf("%s<%s>(): size: %zu, %zu\n", __FUNCTION__, description,
         sizeof(T), sizeof(decltype(T::x)));

  memset(output, 0, sizeof(output));
  std::srand(std::time(nullptr)); // use current time as seed for random generator

  for (int i = 0; i < N; i++) {
    initVal<T>(val[i]);
  }

  HIP_CHECK(hipMalloc(&texBuf, N * sizeof(T)));
  HIP_CHECK(hipMalloc(&texBufOut, N * sizeof(T)));
  HIP_CHECK(hipMemcpy(texBuf, val, N * sizeof(T), hipMemcpyHostToDevice));
  HIP_CHECK(hipMemset(texBufOut, 0, N * sizeof(T)));
  hipResourceDesc resDescLinear;

  memset(&resDescLinear, 0, sizeof(resDescLinear));
  resDescLinear.resType = hipResourceTypeLinear;
  resDescLinear.res.linear.devPtr = texBuf;
  resDescLinear.res.linear.desc = hipCreateChannelDesc<T>();
  resDescLinear.res.linear.sizeInBytes = N * sizeof(T);

  hipTextureDesc texDesc;
  memset(&texDesc, 0, sizeof(texDesc));
  texDesc.readMode = hipReadModeElementType;
  texDesc.addressMode[0] = hipAddressModeClamp;

  // Creating texture object
  hipTextureObject_t texObj = 0;
  HIP_CHECK(hipCreateTextureObject(&texObj, &resDescLinear, &texDesc, NULL));

  dim3 dimBlock(64, 1, 1);
  dim3 dimGrid((N + dimBlock.x - 1) / dimBlock.x, 1, 1);

  hipLaunchKernelGGL(tex1dKernelFetch<T>, dimGrid, dimBlock, 0, 0, texBufOut,
                     texObj, N);
  HIP_CHECK(hipDeviceSynchronize());

  HIP_CHECK(hipMemcpy(output, texBufOut, N * sizeof(T), hipMemcpyDeviceToHost));

  for (int i = 0; i < N; i++) {
    if (!isEqual(output[i], val[i])) {
      std::cout << "output[" << i << "]= ";
      printVector<T>(output[i]);
      std::cout << ", expected val[" << i << "]= ";
      printVector<T>(val[i]);
      std::cout << "\n";
      testResult = false;
      break;
    }
  }
  HIP_CHECK(hipDestroyTextureObject(texObj));
  HIP_CHECK(hipFree(texBuf));
  HIP_CHECK(hipFree(texBufOut));

  printf(": %s\n", testResult ? "succeeded" : "failed");
  REQUIRE(testResult == true);
  return testResult;
}

TEST_CASE("Unit_hipTextureFetch_vector") {
  checkImageSupport();

  // test for char
  runTest<char1>("char1");
  runTest<char2>("char2");
  runTest<char4>("char4");

  // test for uchar
  runTest<uchar1>("uchar1");
  runTest<uchar2>("uchar2");
  runTest<uchar4>("uchar4");

  // test for short
  runTest<short1>("short1");
  runTest<short2>("short2");
  runTest<short4>("short4");

  // test for ushort
  runTest<ushort1>("ushort1");
  runTest<ushort2>("ushort2");
  runTest<ushort4>("ushort4");

  // test for int
  runTest<int1>("int1");
  runTest<int2>("int2");
  runTest<int4>("int4");

  // test for unsigned int
  runTest<uint1>("uint1");
  runTest<uint2>("uint2");
  runTest<uint4>("uint4");

  // test for float
  runTest<float1>("float1");
  runTest<float2>("float2");
  runTest<float4>("float4");
}