renderer: use a render pass for render modif in client render

fixes #8918

src/render/OpenGL.hpp

@@ -110,7 +110,6 @@ struct SMonitorRenderData {
 
 struct SCurrentRenderData {
     PHLMONITORREF       pMonitor;
-    PHLWORKSPACE        pWorkspace = nullptr;
     Mat3x3              projection;
     Mat3x3              savedProjection;
     Mat3x3              monitorProjection;

src/render/Renderer.cpp

@@ -22,6 +22,7 @@
 #include "pass/TexPassElement.hpp"
 #include "pass/ClearPassElement.hpp"
 #include "pass/RectPassElement.hpp"
+#include "pass/RendererHintsPassElement.hpp"
 #include "pass/SurfacePassElement.hpp"
 #include "debug/Log.hpp"
 
@@ -787,12 +788,6 @@ void CHyprRenderer::renderAllClientsForWorkspace(PHLMONITOR pMonitor, PHLWORKSPA
     static auto PBACKGROUNDCOLOR = CConfigValue<Hyprlang::INT>("misc:background_color");
     static auto PXPMODE          = CConfigValue<Hyprlang::INT>("render:xp_mode");
 
-    SRenderModifData RENDERMODIFDATA;
-    if (translate != Vector2D{0, 0})
-        RENDERMODIFDATA.modifs.emplace_back(std::make_pair<>(SRenderModifData::eRenderModifType::RMOD_TYPE_TRANSLATE, translate));
-    if (scale != 1.f)
-        RENDERMODIFDATA.modifs.emplace_back(std::make_pair<>(SRenderModifData::eRenderModifType::RMOD_TYPE_SCALE, scale));
-
     if (!pMonitor)
         return;
 
@@ -805,7 +800,19 @@ void CHyprRenderer::renderAllClientsForWorkspace(PHLMONITOR pMonitor, PHLWORKSPA
     // todo: matrices are buggy atm for some reason, but probably would be preferable in the long run
     // g_pHyprOpenGL->saveMatrix();
     // g_pHyprOpenGL->setMatrixScaleTranslate(translate, scale);
-    g_pHyprOpenGL->m_RenderData.renderModif = RENDERMODIFDATA;
+
+    SRenderModifData RENDERMODIFDATA;
+    if (translate != Vector2D{0, 0})
+        RENDERMODIFDATA.modifs.emplace_back(std::make_pair<>(SRenderModifData::eRenderModifType::RMOD_TYPE_TRANSLATE, translate));
+    if (scale != 1.f)
+        RENDERMODIFDATA.modifs.emplace_back(std::make_pair<>(SRenderModifData::eRenderModifType::RMOD_TYPE_SCALE, scale));
+
+    CScopeGuard x([] {});
+
+    if (!RENDERMODIFDATA.modifs.empty()) {
+        g_pHyprRenderer->m_sRenderPass.add(makeShared<CRendererHintsPassElement>(CRendererHintsPassElement::SData{RENDERMODIFDATA}));
+        x = CScopeGuard([] { g_pHyprRenderer->m_sRenderPass.add(makeShared<CRendererHintsPassElement>(CRendererHintsPassElement::SData{SRenderModifData{}})); });
+    }
 
     if (!pWorkspace) {
         // allow rendering without a workspace. In this case, just render layers.
@@ -828,8 +835,6 @@ void CHyprRenderer::renderAllClientsForWorkspace(PHLMONITOR pMonitor, PHLWORKSPA
             renderLayer(ls.lock(), pMonitor, time);
         }
 
-        g_pHyprOpenGL->m_RenderData.renderModif = {};
-
         return;
     }
 
@@ -933,7 +938,6 @@ void CHyprRenderer::renderAllClientsForWorkspace(PHLMONITOR pMonitor, PHLWORKSPA
     renderDragIcon(pMonitor, time);
 
     //g_pHyprOpenGL->restoreMatrix();
-    g_pHyprOpenGL->m_RenderData.renderModif = {};
 }
 
 void CHyprRenderer::renderLockscreen(PHLMONITOR pMonitor, timespec* now, const CBox& geometry) {
@@ -1436,9 +1440,7 @@ void CHyprRenderer::renderWorkspace(PHLMONITOR pMonitor, PHLWORKSPACE pWorkspace
         translate = Vector2D{};
     }
 
-    g_pHyprOpenGL->m_RenderData.pWorkspace = pWorkspace;
     renderAllClientsForWorkspace(pMonitor, pWorkspace, now, translate, scale);
-    g_pHyprOpenGL->m_RenderData.pWorkspace = nullptr;
 }
 
 void CHyprRenderer::sendFrameEventsToWorkspace(PHLMONITOR pMonitor, PHLWORKSPACE pWorkspace, timespec* now) {

src/render/pass/RendererHintsPassElement.cpp

@@ -0,0 +1,19 @@
+#include "RendererHintsPassElement.hpp"
+#include "../OpenGL.hpp"
+
+CRendererHintsPassElement::CRendererHintsPassElement(const CRendererHintsPassElement::SData& data_) : data(data_) {
+    ;
+}
+
+void CRendererHintsPassElement::draw(const CRegion& damage) {
+    if (data.renderModif.has_value())
+        g_pHyprOpenGL->m_RenderData.renderModif = *data.renderModif;
+}
+
+bool CRendererHintsPassElement::needsLiveBlur() {
+    return false;
+}
+
+bool CRendererHintsPassElement::needsPrecomputeBlur() {
+    return false;
+}

src/render/pass/RendererHintsPassElement.hpp

@@ -0,0 +1,25 @@
+#pragma once
+#include "PassElement.hpp"
+#include <optional>
+#include "../OpenGL.hpp"
+
+class CRendererHintsPassElement : public IPassElement {
+  public:
+    struct SData {
+        std::optional<SRenderModifData> renderModif;
+    };
+
+    CRendererHintsPassElement(const SData& data);
+    virtual ~CRendererHintsPassElement() = default;
+
+    virtual void        draw(const CRegion& damage);
+    virtual bool        needsLiveBlur();
+    virtual bool        needsPrecomputeBlur();
+
+    virtual const char* passName() {
+        return "CRendererHintsPassElement";
+    }
+
+  private:
+    SData data;
+};