added decoration:blur_new_optimizations

src/Compositor.cpp

@@ -926,6 +926,10 @@ void CCompositor::cleanupFadingOut(const int& monid) {
         if (ls->monitorID != monid)
             continue;
 
+        // mark blur for recalc
+        if (ls->layer == ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND || ls->layer == ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)
+            g_pHyprOpenGL->markBlurDirtyForMonitor(getMonitorFromID(monid));
+
         if (ls->fadingOut && ls->readyToDelete && !ls->alpha.isBeingAnimated()) {
             g_pHyprOpenGL->m_mLayerFramebuffers[ls].release();
             g_pHyprOpenGL->m_mLayerFramebuffers.erase(ls);

src/config/ConfigManager.cpp

@@ -66,6 +66,7 @@ void CConfigManager::setDefaultVars() {
     configValues["decoration:blur_size"].intValue = 8;
     configValues["decoration:blur_passes"].intValue = 1;
     configValues["decoration:blur_ignore_opacity"].intValue = 0;
+    configValues["decoration:blur_new_optimizations"].intValue = 1;
     configValues["decoration:active_opacity"].floatValue = 1;
     configValues["decoration:inactive_opacity"].floatValue = 1;
     configValues["decoration:fullscreen_opacity"].floatValue = 1;

src/events/Layers.cpp

@@ -219,6 +219,9 @@ void Events::listener_commitLayerSurface(void* owner, void* data) {
     if (!PMONITOR)
         return;
 
+    if (layersurface->layer == ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND || layersurface->layer == ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)
+        g_pHyprOpenGL->markBlurDirtyForMonitor(PMONITOR);  // so that blur is recalc'd
+
     wlr_box geomFixed = {layersurface->geometry.x, layersurface->geometry.y, layersurface->geometry.width, layersurface->geometry.height};
     g_pHyprRenderer->damageBox(&geomFixed);
 
@@ -251,6 +254,9 @@ void Events::listener_commitLayerSurface(void* owner, void* data) {
             }
 
             layersurface->layer = layersurface->layerSurface->current.layer;
+
+            if (layersurface->layer == ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND || layersurface->layer == ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)
+                g_pHyprOpenGL->markBlurDirtyForMonitor(PMONITOR);  // so that blur is recalc'd
         }
 
         g_pHyprRenderer->arrangeLayersForMonitor(PMONITOR->ID);

src/managers/AnimationManager.cpp

@@ -159,6 +159,9 @@ void CAnimationManager::tick() {
 
                         w->updateWindowDecos();
                     }
+                } else if (PLAYER) {
+                    if (PLAYER->layer == ZWLR_LAYER_SHELL_V1_LAYER_BACKGROUND || PLAYER->layer == ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM)
+                        g_pHyprOpenGL->markBlurDirtyForMonitor(PMONITOR);
                 }
                 break;
             }

src/render/OpenGL.cpp

@@ -575,11 +575,37 @@ CFramebuffer* CHyprOpenGLImpl::blurMainFramebufferWithDamage(float a, wlr_box* p
     return currentRenderToFB;
 }
 
+void CHyprOpenGLImpl::markBlurDirtyForMonitor(CMonitor* pMonitor) {
+    m_mMonitorRenderResources[pMonitor].blurFBDirty = true;
+}
+
+void CHyprOpenGLImpl::preBlurForCurrentMonitor() {
+
+    // make the fake dmg
+    pixman_region32_t fakeDamage;
+    pixman_region32_init_rect(&fakeDamage, 0, 0, m_RenderData.pMonitor->vecTransformedSize.x, m_RenderData.pMonitor->vecTransformedSize.y);
+    wlr_box wholeMonitor = {0, 0, m_RenderData.pMonitor->vecTransformedSize.x, m_RenderData.pMonitor->vecTransformedSize.y};
+    const auto POUTFB = blurMainFramebufferWithDamage(255, &wholeMonitor, &fakeDamage);
+
+    // render onto blurFB
+    m_RenderData.pCurrentMonData->blurFB.alloc(m_RenderData.pMonitor->vecPixelSize.x, m_RenderData.pMonitor->vecPixelSize.y);
+    m_RenderData.pCurrentMonData->blurFB.bind();
+
+    clear(CColor(0,0,0,0));
+
+    renderTextureInternalWithDamage(POUTFB->m_cTex, &wholeMonitor, 255, &fakeDamage, 0, false, true, false);
+
+    m_RenderData.pCurrentMonData->primaryFB.bind();
+
+    m_RenderData.pCurrentMonData->blurFBDirty = false;
+}
+
 void CHyprOpenGLImpl::renderTextureWithBlur(const CTexture& tex, wlr_box* pBox, float a, wlr_surface* pSurface, int round) {
     RASSERT(m_RenderData.pMonitor, "Tried to render texture with blur without begin()!");
 
     static auto *const PBLURENABLED = &g_pConfigManager->getConfigValuePtr("decoration:blur")->intValue;
-    static auto* const PNOBLUROVERSIZED = &g_pConfigManager->getConfigValuePtr("decoration:no_blur_on_oversized")->intValue;
+    static auto *const PNOBLUROVERSIZED = &g_pConfigManager->getConfigValuePtr("decoration:no_blur_on_oversized")->intValue;
+    static auto* const PBLURNEWOPTIMIZE = &g_pConfigManager->getConfigValuePtr("decoration:blur_new_optimizations")->intValue;
 
     if (*PBLURENABLED == 0 || (*PNOBLUROVERSIZED && m_RenderData.primarySurfaceUVTopLeft != Vector2D(-1, -1)) || (m_pCurrentWindow && m_pCurrentWindow->m_sAdditionalConfigData.forceNoBlur)) {
         renderTexture(tex, pBox, a, round, false, true);
@@ -610,7 +636,13 @@ void CHyprOpenGLImpl::renderTextureWithBlur(const CTexture& tex, wlr_box* pBox,
     }
 
     // blur the main FB, it will be rendered onto the mirror
-    const auto POUTFB = blurMainFramebufferWithDamage(a, pBox, &inverseOpaque);
+    if (*PBLURNEWOPTIMIZE && m_RenderData.pCurrentMonData->blurFBDirty) {
+        // redraw the blur. Since this resets the dirty flag, it will be drawn before the first window.
+        preBlurForCurrentMonitor();
+    }
+
+        //                                                          vvv TODO: layered blur fbs?
+    const auto POUTFB = (*PBLURNEWOPTIMIZE && m_pCurrentWindow && !m_pCurrentWindow->m_bIsFloating) ? &m_RenderData.pCurrentMonData->blurFB : blurMainFramebufferWithDamage(a, pBox, &inverseOpaque);
 
     pixman_region32_fini(&inverseOpaque);
 

src/render/OpenGL.hpp

@@ -38,6 +38,9 @@ struct SMonitorRenderData {
 
     CTexture     stencilTex;
 
+    CFramebuffer blurFB;
+    bool         blurFBDirty = true;
+
     wlr_box      backgroundTexBox;
 };
 
@@ -82,6 +85,8 @@ public:
 
     void    destroyMonitorResources(CMonitor*);
 
+    void    markBlurDirtyForMonitor(CMonitor*);
+
     SCurrentRenderData m_RenderData;
 
     GLint  m_iCurrentOutputFb = 0;
@@ -127,6 +132,8 @@ private:
     void                    renderTextureInternalWithDamage(const CTexture&, wlr_box* pBox, float a, pixman_region32_t* damage, int round = 0, bool discardOpaque = false, bool noAA = false, bool allowCustomUV = false);
 
     void                    renderSplash(cairo_t *const, cairo_surface_t *const);
+
+    void                    preBlurForCurrentMonitor();
 };
 
 inline std::unique_ptr<CHyprOpenGLImpl> g_pHyprOpenGL;