From a53a8958f293c0cc5760021cce616574408aee50 Mon Sep 17 00:00:00 2001
From: Asdqwe <asdqwe@asdqwe.com>
Date: Fri, 22 Nov 2024 06:52:55 -0300
Subject: [PATCH] Add implementation to GetWindowScaleDPI() for PLATFORM_WEB
 (#4526)

---
 src/platforms/rcore_web.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/platforms/rcore_web.c b/src/platforms/rcore_web.c
index 859b2c1f..d0be0251 100644
--- a/src/platforms/rcore_web.c
+++ b/src/platforms/rcore_web.c
@@ -771,8 +771,11 @@ Vector2 GetWindowPosition(void)
 // Get window scale DPI factor for current monitor
 Vector2 GetWindowScaleDPI(void)
 {
-    TRACELOG(LOG_WARNING, "GetWindowScaleDPI() not implemented on target platform");
-    return (Vector2){ 1.0f, 1.0f };
+    // NOTE: Returned scale is relative to the current monitor where the browser window is located
+    Vector2 scale = { 1.0f, 1.0f };
+    scale.x = (float)EM_ASM_DOUBLE( { return window.devicePixelRatio; } );
+    scale.y = scale.x;
+    return scale;
 }
 
 // Set clipboard text content