From 7c1497a058cdf877a2e9fbc3ae607ad1cf733c61 Mon Sep 17 00:00:00 2001
From: Greg V <greg@unrelenting.technology>
Date: Mon, 28 Sep 2020 04:52:13 +0300
Subject: [PATCH] glfw: scale cursor position by the ratio of framebuffer to
 screen size

This fixes the mouse being constrained to the top left quarter of the window on Wayland HiDPI setups.
---
 src/skel/glfw/glfw.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/skel/glfw/glfw.cpp b/src/skel/glfw/glfw.cpp
index 73d6fb05..8d1b7d90 100644
--- a/src/skel/glfw/glfw.cpp
+++ b/src/skel/glfw/glfw.cpp
@@ -1438,8 +1438,11 @@ _InputTranslateShiftKeyUpDown(RsKeyCodes *rs) {
 // TODO this only works in frontend(and luckily only frontend use this). Fun fact: if I get pos manually in game, glfw reports that it's > 32000
 void
 cursorCB(GLFWwindow* window, double xpos, double ypos) {
-	FrontEndMenuManager.m_nMouseTempPosX = xpos;
-	FrontEndMenuManager.m_nMouseTempPosY = ypos;
+	int bufw, bufh, winw, winh;
+	glfwGetWindowSize(window, &winw, &winh);
+	glfwGetFramebufferSize(window, &bufw, &bufh);
+	FrontEndMenuManager.m_nMouseTempPosX = xpos * (bufw / winw);
+	FrontEndMenuManager.m_nMouseTempPosY = ypos * (bufh / winh);
 }
 
 void