From d72842f2b3e9cccca6815c9c0fc0dfaf55307f87 Mon Sep 17 00:00:00 2001
From: homayk228 <43516026+SouceCalve@users.noreply.github.com>
Date: Wed, 26 Nov 2025 23:11:53 +0700
Subject: [PATCH] [ADD] Added support for RT7 and DPI change

DPI change - not fully done, still need some work for most dpi's, but 100-300 and 3200 should work!
---
 .gitignore |   5 ++
 Mouse.cpp  |   4 +-
 Mouse.h    |   9 ++-
 main.cpp   | 194 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
 4 files changed, 206 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index e464c60..e1ec761 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,7 @@
 
 /build
+/CMakeFiles
+bloody
+Makefile
+cmake_install.cmake
+CMakeCache.txt
diff --git a/Mouse.cpp b/Mouse.cpp
index 016f140..9615615 100644
--- a/Mouse.cpp
+++ b/Mouse.cpp
@@ -151,6 +151,8 @@ uint8_t Mouse::getBackLightLevel() {
     return response[8];
 }
 
+
+
 void Mouse::listDevices() {
     std::cout<<"Available devices:"<<endl;
     for (auto&devHand : devices){
@@ -197,7 +199,7 @@ void Mouse::listDevices() {
                 break;
             case BLOODY_V8M_PID:
                 name = "Bloody V8M";
-		break;
+		        break;
             case BLOODY_R8_PID:
                 name = "Bloody R8";
                 break;
diff --git a/Mouse.h b/Mouse.h
index 9d49836..eac4b36 100644
--- a/Mouse.h
+++ b/Mouse.h
@@ -34,6 +34,8 @@ static const int BACKLIGHT_OPCODE = 0x11;
 static const int BACKLIGHT_WRITE = 0x80;
 static const int BACKLIGHT_READ = 0x00;
 
+static const int DPI_SET_OPCODE = 0x0d;
+
 
 class Mouse {
 public:
@@ -43,14 +45,15 @@ public:
     bool selectDevice(int address);
     int setBackLightLevel(uint8_t level);
     uint8_t getBackLightLevel();
+    int readFromMouse(uint8_t *request, size_t requestSize, uint8_t *response, size_t responseSize);
+    int writeToMouse(uint8_t data[], size_t size);
 private:
     std::map<int, libusb_device_handle*> devices;
     libusb_device_handle* currentDevice = nullptr;
     libusb_context* context = nullptr;
 
-    int writeToMouse(uint8_t data[], size_t size);
-    int readFromMouse(uint8_t* request, size_t requestSize,
-                       uint8_t* response, size_t responseSize);
+    
+    //int readFromMouse(uint8_t* request, size_t requestSize, uint8_t* response, size_t responseSize);
 
     void discoverDevices();
 
diff --git a/main.cpp b/main.cpp
index c52a139..6ea139c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,10 @@
 #include <iostream>
 #include "Mouse.h"
-
+#include <cstring>
 int main() {
 	Mouse m;
-	int address, level;
+	int address, level, DPI_level;
+	int default_dpi = 3200;
 	m.init();
 	do {
 		m.listDevices();
@@ -18,6 +19,195 @@ int main() {
 		std::cin >> level;
 	}while(m.setBackLightLevel(level) < 0);
 
+	uint8_t data[72] = {A4TECH_MAGIC, DPI_SET_OPCODE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1a,0x1a,0x88,0x02,0x00, };
+
+	do {
+		std::cout << "Select DPI(100-4000):";
+		std::cin >> DPI_level;
+	}while(DPI_level < 0 || DPI_level > 4000);
+	
+	switch(DPI_level){
+		case 100:
+			printf("Setting it to 100, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 200:
+			printf("Setting it to 200, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x10, 0x10, 0x81}, 3);
+			break;
+		case 300:
+			printf("Setting it to 300, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x10, 0x10, 0x81}, 3);
+			break;
+		case 400:
+			printf("Setting it to 400, boss\n"); //остановился здесь(3200 тоже прописал)
+			memcpy(data + 10, (uint8_t[]){0x0d, 0x0d, 0x82}, 3);
+			break;
+		case 500:
+			printf("Setting it to 500, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x10, 0x10, 0x82}, 3);
+			break;
+		case 600:
+			printf("Setting it to 600, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 700:
+			printf("Setting it to 700, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 800:
+			printf("Setting it to 800, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 900:
+			printf("Setting it to 900, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1000:
+			printf("Setting it to 1000, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1100:
+			printf("Setting it to 1100, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1200:
+			printf("Setting it to 1200, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1300:
+			printf("Setting it to 1300, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1400:
+			printf("Setting it to 1400, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1500:
+			printf("Setting it to 1500, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1600:
+			printf("Setting it to 1600, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1700:
+			printf("Setting it to 1700, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1800:
+			printf("Setting it to 1800, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 1900:
+			printf("Setting it to 1900, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2000:
+			printf("Setting it to 2000, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2100:
+			printf("Setting it to 2100, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2200:
+			printf("Setting it to 2200, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2300:
+			printf("Setting it to 2300, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2400:
+			printf("Setting it to 2400, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2500:
+			printf("Setting it to 2500, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2600:
+			printf("Setting it to 2600, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2700:
+			printf("Setting it to 2700, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2800:
+			printf("Setting it to 2800, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 2900:
+			printf("Setting it to 2900, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3000:
+			printf("Setting it to 3000, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3100:
+			printf("Setting it to 3100, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3200:
+			printf("Setting it to 3200, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x1a, 0x1a, 0x88}, 3);
+			break;
+		case 3300:
+			printf("Setting it to 3300, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3400:
+			printf("Setting it to 3400, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3500:
+			printf("Setting it to 3500, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3600:
+			printf("Setting it to 3600, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3700:
+			printf("Setting it to 3700, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3800:
+			printf("Setting it to 3800, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 3900:
+			printf("Setting it to 3900, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		case 4000:
+			printf("Setting it to 4000, boss\n");
+			memcpy(data + 10, (uint8_t[]){0x07, 0x07, 0x81}, 3);
+			break;
+		default:
+			printf("Setting it to %d, boss\n", default_dpi);
+			break;
+
+	}
+
+	//uint8_t data[72] = {A4TECH_MAGIC, DPI_SET_OPCODE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1a,0x1a,0x88,0x02,0x00, };
+
+	int error = m.writeToMouse(data, sizeof(data));
+	printf("Code: %d\n", error);
+	/*for(int x = 0; x<71; x++){
+		std::cout<<(int)data[x]<<std::endl;
+	}*/
+	//uint8_t request[72] = {A4TECH_MAGIC, DPI_SET_OPCODE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1a,0x1a,0x88,0x02,0x00};
+    //uint8_t response[72];
+
+    //m.readFromMouse(request, sizeof(request), response, sizeof(response));
+	//for(int x = 0; x < 71; x++){
+	//	std::cout<<(int)response[x]<<std::endl;
+	//}
+	//std::cout<<"Current backlight level: "<<(int)m.getBackLightLevel()<<std::endl;
 	return 0;
 }