From 54214dd2c4da79945b9f6b8b3a31ba5ddb8a0b84 Mon Sep 17 00:00:00 2001
From: erorcun <erorcunerorcun@hotmail.com.tr>
Date: Mon, 16 Nov 2020 15:28:10 +0300
Subject: Fix mouse lock/high-dpi

---
 src/skel/glfw/glfw.cpp | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

(limited to 'src/skel/glfw')

diff --git a/src/skel/glfw/glfw.cpp b/src/skel/glfw/glfw.cpp
index fbd40ba2..cac487b1 100644
--- a/src/skel/glfw/glfw.cpp
+++ b/src/skel/glfw/glfw.cpp
@@ -896,9 +896,12 @@ void _InputInitialiseJoys()
 	}
 }
 
+int lastCursorMode = GLFW_CURSOR_HIDDEN;
 long _InputInitialiseMouse(bool exclusive)
 {
-	glfwSetInputMode(PSGLOBAL(window), GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+	// Disabled = keep cursor centered and hide
+	lastCursorMode = exclusive ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_HIDDEN;
+	glfwSetInputMode(PSGLOBAL(window), GLFW_CURSOR, lastCursorMode);
 	return 0;
 }
 
@@ -907,10 +910,17 @@ void _InputShutdownMouse()
 	// Not needed
 }
 
+// Not "needs exclusive" on GLFW, but more like "needs to change mode"
 bool _InputMouseNeedsExclusive()
 {
-	// That was the cause of infamous mouse bug on Win. Not supported on glfw anyway
-	return false;
+	// That was the cause of infamous mouse bug on Win.
+	
+	RwVideoMode vm;
+	RwEngineGetVideoModeInfo(&vm, GcurSelVM);
+
+	// If windowed, free the cursor on menu(where this func. is called and DISABLED-HIDDEN transition is done accordingly)
+	// If it's fullscreen, be sure that it didn't stuck on HIDDEN.
+	return !(vm.flags & rwVIDEOMODEEXCLUSIVE) || lastCursorMode == GLFW_CURSOR_HIDDEN;
 }
 
 void psPostRWinit(void)
@@ -1440,11 +1450,13 @@ _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) {
-	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);
+	if (!FrontEndMenuManager.m_bMenuActive)
+		return;
+	
+	int winw, winh;
+	glfwGetWindowSize(PSGLOBAL(window), &winw, &winh);
+	FrontEndMenuManager.m_nMouseTempPosX = xpos * (RsGlobal.maximumWidth / winw);
+	FrontEndMenuManager.m_nMouseTempPosY = ypos * (RsGlobal.maximumHeight / winh);
 }
 
 void
@@ -1672,8 +1684,6 @@ main(int argc, char *argv[])
 #endif
 		{
 			glfwPollEvents();
-			glfwSetInputMode(PSGLOBAL(window), GLFW_CURSOR,
-			                 (FrontEndMenuManager.m_bMenuActive && !PSGLOBAL(fullScreen)) ? GLFW_CURSOR_HIDDEN : GLFW_CURSOR_DISABLED);
 			if( ForegroundApp )
 			{
 				switch ( gGameState )
-- 
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