Function AddIntAttribute

Source/ThirdParty/tinyexr.h:11215–11257

Helper to add an int attribute

// Helper to add an int attribute
static int AddIntAttribute(EXRHeader *exr_header, const char *name, int value) {
  if (!exr_header || !name) return TINYEXR_ERROR_INVALID_ARGUMENT;

  int new_count = exr_header->num_custom_attributes + 1;
  if (new_count > TINYEXR_MAX_CUSTOM_ATTRIBUTES) {
    return TINYEXR_ERROR_DATA_TOO_LARGE;
  }

  // Reallocate attributes array
  EXRAttribute *new_attrs = static_cast<EXRAttribute*>(
      realloc(exr_header->custom_attributes,
              sizeof(EXRAttribute) * static_cast<size_t>(new_count)));
  if (!new_attrs) {
    return TINYEXR_ERROR_INVALID_DATA;
  }

  exr_header->custom_attributes = new_attrs;
  EXRAttribute *attr = &exr_header->custom_attributes[exr_header->num_custom_attributes];

  // Initialize the new attribute
  memset(attr, 0, sizeof(EXRAttribute));

#ifdef _MSC_VER
  strncpy_s(attr->name, sizeof(attr->name), name, 255);
  strncpy_s(attr->type, sizeof(attr->type), "int", 255);
#else
  strncpy(attr->name, name, 255);
  attr->name[255] = '\0';
  strncpy(attr->type, "int", 255);
  attr->type[255] = '\0';
#endif

  attr->value = static_cast<unsigned char*>(malloc(sizeof(int)));
  if (!attr->value) {
    return TINYEXR_ERROR_INVALID_DATA;
  }
  memcpy(attr->value, &value, sizeof(int));
  attr->size = sizeof(int);

  exr_header->num_custom_attributes = new_count;

  return TINYEXR_SUCCESS;
}

// Set spectral attributes on EXR header
int EXRSetSpectralAttributes(EXRHeader *exr_header,