From 3a7bd8fea2ca9711da5523dc185c05ea30ec0f35 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Sat, 4 Apr 2026 23:20:44 +0100
Subject: renderer: add a cm settings cache

---
 src/render/Renderer.hpp | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

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

diff --git a/src/render/Renderer.hpp b/src/render/Renderer.hpp
index ba044567..d61333c7 100644
--- a/src/render/Renderer.hpp
+++ b/src/render/Renderer.hpp
@@ -191,6 +191,7 @@ namespace Render {
 
         SCMSettings                     getCMSettings(const NColorManagement::PImageDescription imageDescription, const NColorManagement::PImageDescription targetImageDescription,
                                                       SP<CWLSurfaceResource> surface = nullptr, bool modifySDR = false, float sdrMinLuminance = -1.0f, int sdrMaxLuminance = -1);
+        void                            clearCMSettingsCache();
         virtual bool                    reloadShaders(const std::string& path = "") = 0;
 
       protected:
@@ -216,11 +217,22 @@ namespace Render {
 
         SP<ITexture>         getBackground(PHLMONITOR pMonitor);
         virtual SP<ITexture> getBlurTexture(PHLMONITORREF pMonitor);
-        SP<ITexture>         m_lockDeadTexture;
-        SP<ITexture>         m_lockDead2Texture;
-        SP<ITexture>         m_lockTtyTextTexture;
-        bool                 m_monitorTransformEnabled = false; // do not modify directly
-        std::stack<bool>     m_monitorTransformStack;
+
+        struct SCMSettingsCacheEntry {
+            uint64_t    srcDescId = 0, dstDescId = 0;
+            void*       surfacePtr      = nullptr; // read-only!!
+            bool        modifySDR       = false;
+            float       sdrMinLuminance = -1.F;
+            int         sdrMaxLuminance = -1;
+            SCMSettings settings;
+        };
+        std::vector<SCMSettingsCacheEntry> m_cmSettingsCache;
+
+        SP<ITexture>                       m_lockDeadTexture;
+        SP<ITexture>                       m_lockDead2Texture;
+        SP<ITexture>                       m_lockTtyTextTexture;
+        bool                               m_monitorTransformEnabled = false; // do not modify directly
+        std::stack<bool>                   m_monitorTransformStack;
 
         // old private:
         void arrangeLayerArray(PHLMONITOR, const std::vector<PHLLSREF>&, bool, CBox*);
-- 
cgit v1.2.3