feat(extra-natives-rdr3): add GET_CURRENT_SCREEN_RESOLUTION for RedM

code/components/extra-natives-rdr3/src/GraphicsNatives.cpp

@@ -107,6 +107,9 @@ static WorldhorizonManager* g_worldhorizonMgr;
 
 CViewportGame** g_viewportGame;
 
+static int* g_calculatedWidth = 0;
+static int* g_calculatedHeight = 0;
+
 static HookFunction hookFunction([]()
 {
 	static_assert(sizeof(ScriptImRequest) == 64);
@@ -145,6 +148,13 @@ static HookFunction hookFunction([]()
 		g_origRenderScriptIm = hook::trampoline(location, RenderScriptIm);
 	}
 
+	{
+		auto location = hook::get_pattern<char>("89 05 ? ? ? ? 89 0D ? ? ? ? F3 0F 5E");
+
+		g_calculatedWidth = hook::get_address<int*>(location + 2);
+		g_calculatedHeight = hook::get_address<int*>(location + 8);
+	}
+
 	fx::ScriptEngine::RegisterNativeHandler("SET_DRAW_ORIGIN", [](fx::ScriptContext& context)
 	{
 		DrawOriginStore& store = g_drawOriginStore[*g_updateBufferIndex];
@@ -313,4 +323,21 @@ static HookFunction hookFunction([]()
 		normalOut->y = XMVectorGetY(normalVector);
 		normalOut->z = XMVectorGetZ(normalVector);
 	});
+
+	fx::ScriptEngine::RegisterNativeHandler("GET_CURRENT_SCREEN_RESOLUTION", [](fx::ScriptContext& context)
+    {
+        int width = *g_calculatedWidth;
+        int height = *g_calculatedHeight;
+
+        if (!width || !height)
+        {
+        	context.SetResult<bool>(false);
+        	return;
+        }
+
+        *context.GetArgument<int*>(0) = width;
+        *context.GetArgument<int*>(1) = height;
+
+        context.SetResult<bool>(true);
+    });
 });

ext/native-decls/GetCurrentScreenResolution.md

@@ -0,0 +1,17 @@
+---
+ns: CFX
+apiset: client
+game: rdr3
+---
+## GET_CURRENT_SCREEN_RESOLUTION
+
+```c
+BOOL GET_CURRENT_SCREEN_RESOLUTION(int* width, int* height);
+```
+
+Gets the current screen resolution.
+
+```lua
+local _, width, height = GetCurrentScreenResolution()
+print(width, height)
+```