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YonicDevYonicDev
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Added NodeBridgeTest3
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‎initial_tests/NodeBridgeTest3/GCAdapter.cc‎

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#include <iostream>
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#include <sstream>
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#include <mutex>
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#include <atomic>
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#include <nan.h>
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#include <bitset>
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#include "GCAdapter.h"
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using namespace std;
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libusb_device_handle *device_handle = nullptr;
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libusb_context *context = nullptr;
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uint8_t controller_payload[37];
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uint8_t controller_payload_swap[37];
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uint8_t endpoint_out = 0;
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uint8_t endpoint_in = 0;
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int controller_payload_size = 0;
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NAN_METHOD(Setup) {
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auto return_value = Nan::New<v8::Number>(0);
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if(info.Length()>0) {
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Nan::ThrowError("Load() must not have arguments");
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return;
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}
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libusb_init(&context);
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libusb_device **list;
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ssize_t count = libusb_get_device_list(context, &list);
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bool case_test = false;
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for (int i = 0; i < count && !case_test; i++) {
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libusb_device *device = list[i];
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case_test = IsAccessible(device);
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if (case_test) {
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return_value = Nan::New<v8::Number>(AddAdapter(device));
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}
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}
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libusb_free_device_list(list, 1);
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info.GetReturnValue().Set(return_value);
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}
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bool IsAccessible(libusb_device *dev) {
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int return_value=0,kernel_value=0;
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libusb_device_descriptor descriptor;
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return_value = libusb_get_device_descriptor(dev, &descriptor);
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if (return_value < 0) {
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cout << "Error getting descriptor of USB device. Error code: " << return_value << endl;
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return false;
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}
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if (descriptor.idVendor == GAMECUBE_VID && descriptor.idProduct == GAMECUBE_PID) {
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cout << "Found GameCube Adapter" << endl;
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}
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else {
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return false;
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}
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return_value = libusb_open(dev, &device_handle);
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switch (return_value) {
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case 0:
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cout << "This adapter seems reachable. Trying to reach..." << endl;
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break;
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case LIBUSB_ERROR_ACCESS:
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cout << "LIBUSB_ERROR_ACCESS: gca-node does not have access to this adapter." << endl;
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return false;
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break;
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default:
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cout << "gca-node couldn't open this adapter. Error code: " << return_value << endl;
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return false;
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break;
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}
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return_value = libusb_kernel_driver_active(device_handle, 0);
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if (return_value == 1) {
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kernel_value = libusb_detach_kernel_driver(device_handle, 0);
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if (kernel_value != 0) {
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cout << "gca-node can't attach the kernel of this adapter. Error code:" << return_value << endl;
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return false;
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}
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}
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if (return_value == 0 || kernel_value == 0) {
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return_value = libusb_claim_interface(device_handle, 0);
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if (return_value != 0) {
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cout << "gca-node couldn't claim interface 0 of adapter. Error code:" << return_value << endl;
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}
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return return_value == 0;
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}
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return false;
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}
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int AddAdapter(libusb_device *dev) {
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int endpoint_number = 0;
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libusb_config_descriptor *config = nullptr;
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libusb_get_config_descriptor(dev, 0, &config);
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for (uint8_t iface=0; iface < config->bNumInterfaces; iface++) {
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const libusb_interface *interfaceContainer = &config->interface[iface];
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for (int i = 0; i < interfaceContainer->num_altsetting; i++) {
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const libusb_interface_descriptor *idesc = &interfaceContainer->altsetting[i];
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for (uint8_t epoint = 0; epoint < idesc->bNumEndpoints; epoint++) {
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const libusb_endpoint_descriptor *endpoint = &idesc->endpoint[epoint];
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endpoint_number++;
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if (endpoint->bEndpointAddress & LIBUSB_ENDPOINT_IN) {
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endpoint_in = endpoint->bEndpointAddress;
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}
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else {
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endpoint_out = endpoint->bEndpointAddress;
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}
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}
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}
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}
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return endpoint_number;
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}
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NAN_METHOD(Load) {
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if(info.Length()>0) {
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Nan::ThrowError("Load() must not have arguments");
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return;
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}
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int payload_size = 0, tmp = 0;
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uint8_t payload = 0x13;
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auto return_value = Nan::New<v8::Number>(libusb_interrupt_transfer(device_handle, endpoint_out, &payload, sizeof(payload), &tmp, 16));
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info.GetReturnValue().Set(return_value);
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}
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NAN_METHOD(Read) {
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if(info.Length()>0) {
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Nan::ThrowError("Read() must not have arguments");
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return;
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}
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Sleep(200);
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int code = libusb_interrupt_transfer(device_handle, endpoint_in, controller_payload_swap, sizeof(controller_payload_swap), &controller_payload_size, 16);
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stringstream return_value;
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if (code == 0) {
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int i;
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return_value << "[";
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for (i = 0; i < 9; i++) {
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bitset<8> bits(controller_payload_swap[i]);
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return_value << bits << ",";
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}
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bitset<8> bits(controller_payload_swap[i]);
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return_value << bits << "]";
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auto returner = Nan::New<v8::String>(return_value.str()).ToLocalChecked();
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info.GetReturnValue().Set(returner);
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}
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else {
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return_value << "I couldn't get anything. Error: " << code;
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auto error_message = Nan::New<v8::String>(return_value.str()).ToLocalChecked();
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info.GetReturnValue().Set(error_message);
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}
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}
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NAN_MODULE_INIT(Bridge) {
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NAN_EXPORT(target,Load);
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NAN_EXPORT(target,Setup);
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NAN_EXPORT(target,Read);
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}
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NODE_MODULE(BridgeTest_2,Bridge)

‎initial_tests/NodeBridgeTest3/GCAdapter.h‎

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#include "libusb.h"
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#include <nan.h>
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#pragma once
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int AddAdapter(libusb_device *dev);
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NAN_METHOD(Load);
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NAN_METHOD(Setup);
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bool IsAccessible(libusb_device *dev);
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const uint16_t GAMECUBE_VID = 0x057E;
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const uint16_t GAMECUBE_PID = 0x0337;

‎initial_tests/NodeBridgeTest3/binding.gyp‎

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{
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"targets": [
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{
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"link_settings": {
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"libraries": ["../lib/libusb-1.0.lib"]
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},
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"include_dirs": [
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"<!(node -e \"require('nan')\")",
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"include"
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],
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"target_name": "gca-node",
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"sources": ["GCAdapter.cc","GCAdapter.h"]
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}
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]
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}

‎initial_tests/NodeBridgeTest3/test/main.js‎

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var gca_node = require('../build/Release/gca-node.node')
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var proceed = false;
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if(gca_node.Setup()>0) {
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console.log("I found an available GameCube adapter!");
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proceed = true;
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} else {
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console.error("I haven't found an available GameCube adapter. I can't tell the reason just yet.");
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}
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if(proceed) {
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console.log("I'm going to try and connect to the adapter.");
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var code = gca_node.Load();
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if(code===0) {
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console.log("I did it! Now I'm going to do some buffering...");
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for(var i=0;i<100;i++) {
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console.log(gca_node.Read());
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}
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} else {
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console.log("Oops! Something happened: " + code);
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}
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}

‎initial_tests/NodeBridgeTest3/test/test.html‎

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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>myou</title>
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</head>
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<body style="margin:0;height:100vh">
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<script src="main.js"></script>
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</body>
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</html>

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