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Only keep the ViGEmBus connection alive while gamepads are attached

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This commit is contained in:
Cameron Gutman
2023-12-31 19:42:48 -06:00
parent 9a3106fcef
commit e7a3c485ee
1 changed files with 34 additions and 8 deletions
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42
src/platform/windows/input.cpp
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@@ -192,17 +192,16 @@ namespace platf {
public:
int
init() {
VIGEM_ERROR status;
client.reset(vigem_alloc());
status = vigem_connect(client.get());
// Probe ViGEm during startup to see if we can successfully attach gamepads. This will allow us to
// immediately display the error message in the web UI even before the user tries to stream.
client_t client { vigem_alloc() };
VIGEM_ERROR status = vigem_connect(client.get());
if (!VIGEM_SUCCESS(status)) {
BOOST_LOG(warning) << "Couldn't setup connection to ViGEm for gamepad support ["sv << util::hex(status).to_string_view() << ']';
// Log a special fatal message for this case to show the error in the web UI
BOOST_LOG(fatal) << "ViGEmBus is not installed or running. You must install ViGEmBus for gamepad support!"sv;
return -1;
}
else {
vigem_disconnect(client.get());
}
gamepads.resize(MAX_GAMEPADS);
@@ -225,6 +224,19 @@ namespace platf {
gamepad.client_relative_index = id.clientRelativeIndex;
gamepad.last_report_ts = std::chrono::steady_clock::now();
// Establish a connect to the ViGEm driver if we don't have one yet
if (!client) {
BOOST_LOG(debug) << "Connecting to ViGEmBus driver"sv;
client.reset(vigem_alloc());
auto status = vigem_connect(client.get());
if (!VIGEM_SUCCESS(status)) {
BOOST_LOG(warning) << "Couldn't setup connection to ViGEm for gamepad support ["sv << util::hex(status).to_string_view() << ']';
client.reset();
return -1;
}
}
if (gp_type == Xbox360Wired) {
gamepad.gp.reset(vigem_target_x360_alloc());
XUSB_REPORT_INIT(&gamepad.report.x360);
@@ -291,6 +303,20 @@ namespace platf {
}
gamepad.gp.reset();
// Disconnect from ViGEm if we just removed the last gamepad
bool disconnect = true;
for (auto &gamepad : gamepads) {
if (gamepad.gp && vigem_target_is_attached(gamepad.gp.get())) {
disconnect = false;
break;
}
}
if (disconnect) {
BOOST_LOG(debug) << "Disconnecting from ViGEmBus driver"sv;
vigem_disconnect(client.get());
client.reset();
}
}
/**