renderer: add decoration:blur:special

will blur behind the special ws

3 files changed, 66 insertions, 13 deletions

diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index 9cd5ced8..11c92525 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -473,6 +473,54 @@ void CHyprOpenGLImpl::renderRect(wlr_box* box, const CColor& col, int round) {
         renderRectWithDamage(box, col, &m_RenderData.damage, round);
 }
 
+void CHyprOpenGLImpl::renderRectWithBlur(wlr_box* box, const CColor& col, int round, float blurA) {
+    if (m_RenderData.damage.empty())
+        return;
+
+    CRegion damage{m_RenderData.damage};
+    damage.intersect(box);
+
+    CFramebuffer* POUTFB = blurMainFramebufferWithDamage(blurA, &damage);
+
+    // bind primary
+    m_RenderData.pCurrentMonData->primaryFB.bind();
+
+    // make a stencil for rounded corners to work with blur
+    scissor((wlr_box*)nullptr); // allow the entire window and stencil to render
+    glClearStencil(0);
+    glClear(GL_STENCIL_BUFFER_BIT);
+
+    glEnable(GL_STENCIL_TEST);
+
+    glStencilFunc(GL_ALWAYS, 1, -1);
+    glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+
+    glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+    renderRect(box, CColor(0, 0, 0, 0), round);
+    glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+
+    glStencilFunc(GL_EQUAL, 1, -1);
+    glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+
+    scissor(box);
+    wlr_box MONITORBOX          = {0, 0, m_RenderData.pMonitor->vecTransformedSize.x, m_RenderData.pMonitor->vecTransformedSize.y};
+    m_bEndFrame                 = true; // fix transformed
+    const auto SAVEDRENDERMODIF = m_RenderData.renderModif;
+    m_RenderData.renderModif    = {}; // fix shit
+    renderTextureInternalWithDamage(POUTFB->m_cTex, &MONITORBOX, blurA, &damage, 0, false, false, false);
+    m_bEndFrame              = false;
+    m_RenderData.renderModif = SAVEDRENDERMODIF;
+
+    glClearStencil(0);
+    glClear(GL_STENCIL_BUFFER_BIT);
+    glDisable(GL_STENCIL_TEST);
+    glStencilMask(-1);
+    glStencilFunc(GL_ALWAYS, 1, 0xFF);
+    scissor((wlr_box*)nullptr);
+
+    renderRectWithDamage(box, col, &m_RenderData.damage, round);
+}
+
 void CHyprOpenGLImpl::renderRectWithDamage(wlr_box* box, const CColor& col, CRegion* damage, int round) {
     RASSERT((box->width > 0 && box->height > 0), "Tried to render rect with width/height < 0!");
     RASSERT(m_RenderData.pMonitor, "Tried to render rect without begin()!");
@@ -788,7 +836,7 @@ void CHyprOpenGLImpl::renderTexturePrimitive(const CTexture& tex, wlr_box* pBox)
 // but it works... well, I guess?
 //
 // Dual (or more) kawase blur
-CFramebuffer* CHyprOpenGLImpl::blurMainFramebufferWithDamage(float a, wlr_box* pBox, CRegion* originalDamage) {
+CFramebuffer* CHyprOpenGLImpl::blurMainFramebufferWithDamage(float a, CRegion* originalDamage) {
 
     TRACY_GPU_ZONE("RenderBlurMainFramebufferWithDamage");
 
@@ -1054,7 +1102,7 @@ void CHyprOpenGLImpl::preBlurForCurrentMonitor() {
     // make the fake dmg
     CRegion    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(1, &wholeMonitor, &fakeDamage);
+    const auto POUTFB       = blurMainFramebufferWithDamage(1, &fakeDamage);
 
     // render onto blurFB
     m_RenderData.pCurrentMonData->blurFB.alloc(m_RenderData.pMonitor->vecPixelSize.x, m_RenderData.pMonitor->vecPixelSize.y);
@@ -1155,7 +1203,7 @@ void CHyprOpenGLImpl::renderTextureWithBlur(const CTexture& tex, wlr_box* pBox,
     if (!USENEWOPTIMIZE) {
         inverseOpaque.translate({pBox->x, pBox->y}).intersect(texDamage);
 
-        POUTFB = blurMainFramebufferWithDamage(a, pBox, &inverseOpaque);
+        POUTFB = blurMainFramebufferWithDamage(a, &inverseOpaque);
     } else {
         POUTFB = &m_RenderData.pCurrentMonData->blurFB;
     }
diff --git a/src/render/OpenGL.hpp b/src/render/OpenGL.hpp
index 23b78d6a..c04e8c65 100644
--- a/src/render/OpenGL.hpp
+++ b/src/render/OpenGL.hpp
@@ -103,6 +103,7 @@ class CHyprOpenGLImpl {
     void               bindWlrOutputFb();
 
     void               renderRect(wlr_box*, const CColor&, int round = 0);
+    void               renderRectWithBlur(wlr_box*, const CColor&, int round = 0, float blurA = 1.f);
     void               renderRectWithDamage(wlr_box*, const CColor&, CRegion* damage, int round = 0);
     void               renderTexture(wlr_texture*, wlr_box*, float a, int round = 0, bool allowCustomUV = false);
     void               renderTexture(const CTexture&, wlr_box*, float a, int round = 0, bool discardActive = false, bool allowCustomUV = false);
@@ -177,7 +178,7 @@ class CHyprOpenGLImpl {
     void              initShaders();
 
     // returns the out FB, can be either Mirror or MirrorSwap
-    CFramebuffer* blurMainFramebufferWithDamage(float a, wlr_box* pBox, CRegion* damage);
+    CFramebuffer* blurMainFramebufferWithDamage(float a, CRegion* damage);
 
     void          renderTextureInternalWithDamage(const CTexture&, wlr_box* pBox, float a, CRegion* damage, int round = 0, bool discardOpaque = false, bool noAA = false,
                                                   bool allowCustomUV = false, bool allowDim = false);
diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index 6a9df66e..0105780d 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -453,7 +453,8 @@ void CHyprRenderer::renderSessionLockSurface(SSessionLockSurface* pSurface, CMon
 }
 
 void CHyprRenderer::renderAllClientsForWorkspace(CMonitor* pMonitor, CWorkspace* pWorkspace, timespec* time, const Vector2D& translate, const float& scale) {
-    static auto* const     PDIMSPECIAL = &g_pConfigManager->getConfigValuePtr("decoration:dim_special")->floatValue;
+    static auto* const     PDIMSPECIAL  = &g_pConfigManager->getConfigValuePtr("decoration:dim_special")->floatValue;
+    static auto* const     PBLURSPECIAL = &g_pConfigManager->getConfigValuePtr("decoration:blur:special")->intValue;
 
     const SRenderModifData RENDERMODIFDATA = {translate, scale};
 
@@ -605,18 +606,21 @@ void CHyprRenderer::renderAllClientsForWorkspace(CMonitor* pMonitor, CWorkspace*
             continue;
 
         if (!renderedSpecialBG) {
-            if (*PDIMSPECIAL != 0.f) {
-                const auto PSPECIALWORKSPACE = g_pCompositor->getWorkspaceByID(w->m_iWorkspaceID);
-
-                const auto SPECIALANIMPROGRS =
-                    PSPECIALWORKSPACE->m_vRenderOffset.isBeingAnimated() ? PSPECIALWORKSPACE->m_vRenderOffset.getCurveValue() : PSPECIALWORKSPACE->m_fAlpha.getCurveValue();
-
-                const bool ANIMOUT = !pMonitor->specialWorkspaceID;
+            const auto PSPECIALWORKSPACE = g_pCompositor->getWorkspaceByID(w->m_iWorkspaceID);
+            const auto SPECIALANIMPROGRS =
+                PSPECIALWORKSPACE->m_vRenderOffset.isBeingAnimated() ? PSPECIALWORKSPACE->m_vRenderOffset.getCurveValue() : PSPECIALWORKSPACE->m_fAlpha.getCurveValue();
+            const bool ANIMOUT = !pMonitor->specialWorkspaceID;
 
-                wlr_box    monbox = {translate.x, translate.y, pMonitor->vecTransformedSize.x * scale, pMonitor->vecTransformedSize.y * scale};
+            if (*PDIMSPECIAL != 0.f) {
+                wlr_box monbox = {translate.x, translate.y, pMonitor->vecTransformedSize.x * scale, pMonitor->vecTransformedSize.y * scale};
                 g_pHyprOpenGL->renderRect(&monbox, CColor(0, 0, 0, *PDIMSPECIAL * (ANIMOUT ? (1.0 - SPECIALANIMPROGRS) : SPECIALANIMPROGRS)));
             }
 
+            if (*PBLURSPECIAL) {
+                wlr_box monbox = {translate.x, translate.y, pMonitor->vecTransformedSize.x * scale, pMonitor->vecTransformedSize.y * scale};
+                g_pHyprOpenGL->renderRectWithBlur(&monbox, CColor(0, 0, 0, 0), 0, (ANIMOUT ? (1.0 - SPECIALANIMPROGRS) : SPECIALANIMPROGRS));
+            }
+
             renderedSpecialBG = true;
         }