From 6b92144f15117f9f7d93fe9867d6ec849d9abce1 Mon Sep 17 00:00:00 2001
From: vaxerski <vaxry@vaxry.net>
Date: Thu, 11 Jan 2024 13:15:20 +0100
Subject: surface: avoid spam of window surfaces with scale and transform
 events

fixes #4408
---
 src/render/Renderer.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'src/render/Renderer.cpp')

diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index b7776ee6..6d5af8d9 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -1997,6 +1997,7 @@ bool CHyprRenderer::applyMonitorRule(CMonitor* pMonitor, SMonitorRule* pMonitorR
         Vector2D logicalZero = pMonitor->vecPixelSize / scaleZero;
         if (logicalZero == logicalZero.round()) {
             pMonitor->scale = scaleZero;
+            wlr_output_set_scale(pMonitor->output, pMonitor->scale);
         } else {
             for (size_t i = 1; i < 90; ++i) {
                 double   scaleUp   = (searchScale + i) / 120.0;
@@ -2034,11 +2035,15 @@ bool CHyprRenderer::applyMonitorRule(CMonitor* pMonitor, SMonitorRule* pMonitorR
                 } else
                     pMonitor->scale = searchScale;
             }
+
+            // for wlroots, that likes flooring, we have to do this.
+            double logicalX = std::round(pMonitor->vecPixelSize.x / pMonitor->scale);
+            logicalX += 0.1;
+
+            wlr_output_set_scale(pMonitor->output, pMonitor->vecPixelSize.x / logicalX);
         }
     }
 
-    wlr_output_set_scale(pMonitor->output, pMonitor->scale);
-
     // clang-format off
     static const std::array<std::vector<std::pair<std::string, uint32_t>>, 2> formats{
         std::vector<std::pair<std::string, uint32_t>>{ /* 10-bit */
-- 
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