void InputDeviceProvider_Win32Hid::update_values(void *preparse_data, void *report, int report_size)
{
for (size_t i = 0; i < axis_values.size(); i++)
axis_values[i] = 0.0f;
for (size_t i = 0; i < hat_values.size(); i++)
hat_values[i] = -1;
Hid::CAPS caps;
hid.GetCaps(preparse_data, &caps);
std::vector<Hid::VALUE_CAPS> value_caps(caps.NumberInputValueCaps);
if (!value_caps.empty())
{
USHORT num_value_caps = value_caps.size();
hid.GetValueCaps(Hid::HidP_Input, &value_caps[0], &num_value_caps, preparse_data);
for (size_t collection = 0; collection < value_caps.size(); collection++)
{
ULONG value = 0;
for (Hid::USAGE usage = value_caps[collection].Range.UsageMin; usage <= value_caps[collection].Range.UsageMax; usage++)
{
hid.GetUsageValue(Hid::HidP_Input, value_caps[collection].UsagePage, 0, usage, &value, preparse_data, report, report_size);
if (value_caps[collection].LogicalMin == 0 && value_caps[collection].LogicalMax == 3 && value_caps[collection].HasNull) // Four direction hat
{
std::map<Hid::USAGE, int>::iterator it = usage_to_hat_index.find(usage);
if (it != usage_to_hat_index.end())
hat_values[it->second] = (value == 8) ? -1 : (value * 360 / 4);
}
else if (value_caps[collection].LogicalMin == 0 && value_caps[collection].LogicalMax == 7 && value_caps[collection].HasNull) // Eight direction hat
{
std::map<Hid::USAGE, int>::iterator it = usage_to_hat_index.find(usage);
if (it != usage_to_hat_index.end())
hat_values[it->second] = (value == 8) ? -1 : (value * 360 / 8);
}
else
{
std::map<Hid::USAGE, int>::iterator it = usage_to_axis_index.find(usage);
if (it != usage_to_axis_index.end())
axis_values[it->second] = clamp((value - value_caps[collection].LogicalMin) / (float)(value_caps[collection].LogicalMax - value_caps[collection].LogicalMin) * 2.0f - 1.0f, -1.0f, 1.0f);
}
}
}
}
}
void InputDeviceProvider_Win32Hid::find_value_names(HANDLE device, void *preparse_data)
{
// Place all standard axis and hats at the beginning of the list
axis_values.resize(9);
axis_names.push_back("X");
axis_names.push_back("Y");
axis_names.push_back("Z");
axis_names.push_back("Rx");
axis_names.push_back("Ry");
axis_names.push_back("Rz");
axis_names.push_back("Slider");
axis_names.push_back("Dial");
axis_names.push_back("Wheel");
for (int i = 0; i < 9; i++)
usage_to_axis_index[0x30 + i] = i;
int next_axis_index = 9;
hat_values.push_back(-1);
hat_names.push_back("Hat");
usage_to_hat_index[0x39] = 0;
int next_hat_index = 2;
Hid::CAPS caps;
hid.GetCaps(preparse_data, &caps);
std::vector<Hid::VALUE_CAPS> value_caps(caps.NumberInputValueCaps);
if (!value_caps.empty())
{
USHORT num_value_caps = value_caps.size();
hid.GetValueCaps(Hid::HidP_Input, &value_caps[0], &num_value_caps, preparse_data);
for (size_t collection = 0; collection < value_caps.size(); collection++)
{
for (Hid::USAGE usage = value_caps[collection].Range.UsageMin; usage <= value_caps[collection].Range.UsageMax; usage++)
{
if (usage < 0x30 || usage > 0x39)
{
if (value_caps[collection].LogicalMin == 0 && value_caps[collection].LogicalMax == 3 && value_caps[collection].HasNull) // Four direction hat
{
hat_names.push_back(string_format("Hat%1", next_hat_index++));
usage_to_hat_index[usage] = hat_values.size();
//hat_ids.push_back(hat_values.size());
hat_values.push_back(-1);
}
else if (value_caps[collection].LogicalMin == 0 && value_caps[collection].LogicalMax == 7 && value_caps[collection].HasNull) // Eight direction hat
{
hat_names.push_back(string_format("Hat%1", next_hat_index++));
usage_to_hat_index[usage] = hat_values.size();
//hat_ids.push_back(hat_values.size());
hat_values.push_back(-1);
}
else
{
axis_names.push_back(string_format("Axis%1", next_axis_index++));
usage_to_axis_index[usage] = axis_values.size();
axis_ids.push_back(axis_values.size());
axis_values.push_back(0.0f);
}
}
else
{
switch (usage)
{
case 0x30: axis_ids.push_back(joystick_x); break;
case 0x31: axis_ids.push_back(joystick_y); break;
case 0x32: axis_ids.push_back(joystick_z); break;
case 0x33: axis_ids.push_back(joystick_rx); break;
case 0x34: axis_ids.push_back(joystick_ry); break;
case 0x35: axis_ids.push_back(joystick_rz); break;
case 0x36: axis_ids.push_back(joystick_slider); break;
case 0x37: axis_ids.push_back(joystick_dial); break;
case 0x38: axis_ids.push_back(joystick_wheel); break;
//case 0x39: hat_ids.push_back(joystick_hat); break;
}
}
}
}
}
}
