fix: recalulate on mouse move, not render

src/cursor.cpp

@@ -51,7 +51,7 @@ void CDynamicCursors::renderSoftware(CPointerManager* pointers, SP<CMonitor> pMo
     box.scale(pMonitor->scale);
 
     // we rotate the cursor by our calculated amount
-    box.rot = this->calculate(&pointers->pointerPos);
+    box.rot = this->angle;
 
     // now pass the hotspot to rotate around
     renderCursorTextureInternalWithDamage(texture, &box, &damage, 1.F, pointers->currentCursorImage.hotspot);
@@ -151,7 +151,7 @@ wlr_buffer* CDynamicCursors::renderHardware(CPointerManager* pointers, SP<CPoint
 
     // the box should start in the middle portion, rotate by our calculated amount
     CBox xbox = {size, Vector2D{pointers->currentCursorImage.size / pointers->currentCursorImage.scale * state->monitor->scale}.round()};
-    xbox.rot = this->calculate(&pointers->pointerPos);
+    xbox.rot = this->angle;
 
     //  use our custom draw function
     renderCursorTextureInternalWithDamage(texture, &xbox, &damage, 1.F, pointers->currentCursorImage.hotspot);
@@ -198,6 +198,8 @@ void CDynamicCursors::onCursorMoved(CPointerManager* pointers) {
     if (!pointers->hasCursor())
         return;
 
+    bool changed = calculate(&pointers->pointerPos);
+
     for (auto& m : g_pCompositor->m_vMonitors) {
         auto state = pointers->stateFor(m);
 
@@ -206,12 +208,16 @@ void CDynamicCursors::onCursorMoved(CPointerManager* pointers) {
         if (state->hardwareFailed || !state->entered)
             continue;
 
-        // we set a new hardware cursor on every move
+        const auto CURSORPOS = pointers->getCursorPosForMonitor(m);
+        m->output->impl->move_cursor(m->output, CURSORPOS.x, CURSORPOS.y);
+
+        // we set a new hardware cursor if the angle has changed significantly
+        if (changed)
             pointers->attemptHardwareCursor(state);
     }
 }
 
-double CDynamicCursors::calculate(Vector2D* pos) {
+bool CDynamicCursors::calculate(Vector2D* pos) {
     static auto* const* PLENGTH = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_LENGTH)->getDataStaticPtr();
 
     // translate to origin
@@ -236,5 +242,11 @@ double CDynamicCursors::calculate(Vector2D* pos) {
     end.x += pos->x;
     end.y += pos->y;
 
-    return angle;
+    // we only consider the angle changed if it is larger than 1 degree
+    if (abs(this->angle - angle) > (PI / 180)) {
+        this->angle = angle;
+        return true;
+    }
+
+    return false;
 }

src/cursor.hpp

@@ -21,8 +21,11 @@ class CDynamicCursors {
     bool setHardware(CPointerManager* pointers, SP<CPointerManager::SMonitorPointerState> state, wlr_buffer* buf);
 
   private:
-    // calculates the current angle of the cursor
+    // current angle of the cursor in radiants
-    double calculate(Vector2D* pos);
+    double angle;
+
+    // calculates the current angle of the cursor, returns whether the angle has changed
+    bool calculate(Vector2D* pos);
     // this is the end of the virtual stick
     Vector2D end;
 };

src/globals.hpp

@@ -2,6 +2,7 @@
 
 #include <hyprland/src/plugins/PluginAPI.hpp>
 
+#define CONFIG_ENABLED  "plugin:dynamic-cursors:enabled"
 #define CONFIG_LENGTH   "plugin:dynamic-cursors:length"
 #define CONFIG_HW_DEBUG "plugin:dynamic-cursors:hw_debug"
 

src/main.cpp

@@ -11,31 +11,46 @@
 typedef void (*origRenderSofwareCursorsFor)(void*, SP<CMonitor>, timespec*, CRegion&, std::optional<Vector2D>);
 inline CFunctionHook* g_pRenderSoftwareCursorsForHook = nullptr;
 void hkRenderSoftwareCursorsFor(void* thisptr, SP<CMonitor> pMonitor, timespec* now, CRegion& damage, std::optional<Vector2D> overridePos) {
-    g_pDynamicCursors->renderSoftware((CPointerManager*) thisptr, pMonitor, now, damage, overridePos);
+    static auto* const* PENABLED = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_ENABLED)->getDataStaticPtr();
+
+    if (**PENABLED) g_pDynamicCursors->renderSoftware((CPointerManager*) thisptr, pMonitor, now, damage, overridePos);
+    else (*(origRenderSofwareCursorsFor)g_pRenderSoftwareCursorsForHook->m_pOriginal)(thisptr, pMonitor, now, damage, overridePos);
 }
 
 typedef void (*origDamageIfSoftware)(void*);
 inline CFunctionHook* g_pDamageIfSoftwareHook = nullptr;
 void hkDamageIfSoftware(void* thisptr) {
-    g_pDynamicCursors->damageSoftware((CPointerManager*) thisptr);
+    static auto* const* PENABLED = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_ENABLED)->getDataStaticPtr();
+
+    if (**PENABLED) g_pDynamicCursors->damageSoftware((CPointerManager*) thisptr);
+    else (*(origDamageIfSoftware)g_pDamageIfSoftwareHook->m_pOriginal)(thisptr);
 }
 
 typedef wlr_buffer* (*origRenderHWCursorBuffer)(void*, SP<CPointerManager::SMonitorPointerState>, SP<CTexture>);
 inline CFunctionHook* g_pRenderHWCursorBufferHook = nullptr;
 wlr_buffer* hkRenderHWCursorBuffer(void* thisptr, SP<CPointerManager::SMonitorPointerState> state, SP<CTexture> texture) {
-    return g_pDynamicCursors->renderHardware((CPointerManager*) thisptr, state, texture);
+    static auto* const* PENABLED = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_ENABLED)->getDataStaticPtr();
+
+    if (**PENABLED) return g_pDynamicCursors->renderHardware((CPointerManager*) thisptr, state, texture);
+    else return (*(origRenderHWCursorBuffer)g_pRenderHWCursorBufferHook->m_pOriginal)(thisptr, state, texture);
 }
 
 typedef bool (*origSetHWCursorBuffer)(void*, SP<CPointerManager::SMonitorPointerState>, wlr_buffer*);
 inline CFunctionHook* g_pSetHWCursorBufferHook = nullptr;
 bool hkSetHWCursorBuffer(void* thisptr, SP<CPointerManager::SMonitorPointerState> state, wlr_buffer* buffer) {
-    return g_pDynamicCursors->setHardware((CPointerManager*) thisptr, state, buffer);
+    static auto* const* PENABLED = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_ENABLED)->getDataStaticPtr();
+
+    if (**PENABLED) return g_pDynamicCursors->setHardware((CPointerManager*) thisptr, state, buffer);
+    else return (*(origSetHWCursorBuffer)g_pSetHWCursorBufferHook->m_pOriginal)(thisptr, state, buffer);
 }
 
 typedef void (*origOnCursorMoved)(void*);
 inline CFunctionHook* g_pOnCursorMovedHook = nullptr;
 void hkOnCursorMoved(void* thisptr) {
-    return g_pDynamicCursors->onCursorMoved((CPointerManager*) thisptr);
+    static auto* const* PENABLED = (Hyprlang::INT* const*)HyprlandAPI::getConfigValue(PHANDLE, CONFIG_ENABLED)->getDataStaticPtr();
+
+    if (**PENABLED) return g_pDynamicCursors->onCursorMoved((CPointerManager*) thisptr);
+    else return (*(origOnCursorMoved)g_pOnCursorMovedHook->m_pOriginal)(thisptr);
 }
 
 APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle) {
@@ -71,9 +86,12 @@ APICALL EXPORT PLUGIN_DESCRIPTION_INFO PLUGIN_INIT(HANDLE handle) {
     g_pOnCursorMovedHook = HyprlandAPI::createFunctionHook(PHANDLE, ON_CURSOR_MOVED_METHODS[0].address, (void*) &hkOnCursorMoved);
     g_pOnCursorMovedHook->hook();
 
+    HyprlandAPI::addConfigValue(PHANDLE, CONFIG_ENABLED, Hyprlang::INT{1});
     HyprlandAPI::addConfigValue(PHANDLE, CONFIG_LENGTH, Hyprlang::INT{20});
     HyprlandAPI::addConfigValue(PHANDLE, CONFIG_HW_DEBUG, Hyprlang::INT{0});
 
+    HyprlandAPI::reloadConfig();
+
     return {"dynamic-cursors", "The most stupid cursor plugin.", "Virt", "1.1"};
 }