2 files changed, 11 insertions, 0 deletions
diff --git a/src/helpers/Monitor.cpp b/src/helpers/Monitor.cpp
index c6cef41f..f3e7de4e 100644
--- a/src/helpers/Monitor.cpp
+++ b/src/helpers/Monitor.cpp
@@ -813,6 +813,12 @@ void CMonitor::scheduleDone() {
     });
 }
 
+void CMonitor::setCTM(const Mat3x3& ctm_) {
+    ctm        = ctm_;
+    ctmUpdated = true;
+    g_pCompositor->scheduleFrameForMonitor(this, Aquamarine::IOutput::scheduleFrameReason::AQ_SCHEDULE_NEEDS_FRAME);
+}
+
 bool CMonitor::attemptDirectScanout() {
     if (!mirrors.empty() || isMirror() || g_pHyprRenderer->m_bDirectScanoutBlocked)
         return false; // do not DS if this monitor is being mirrored. Will break the functionality.
diff --git a/src/helpers/Monitor.hpp b/src/helpers/Monitor.hpp
index 2a2edab6..f5068dba 100644
--- a/src/helpers/Monitor.hpp
+++ b/src/helpers/Monitor.hpp
@@ -131,6 +131,10 @@ class CMonitor {
     CMonitor*              pMirrorOf = nullptr;
     std::vector<CMonitor*> mirrors;
 
+    // ctm
+    Mat3x3 ctm        = Mat3x3::identity();
+    bool   ctmUpdated = false;
+
     // for tearing
     PHLWINDOWREF solitaryClient;
 
@@ -179,6 +183,7 @@ class CMonitor {
     CBox        logicalBox();
     void        scheduleDone();
     bool        attemptDirectScanout();
+    void        setCTM(const Mat3x3& ctm);
 
     bool        m_bEnabled             = false;
     bool        m_bRenderingInitPassed = false;