Added clipping support, clip windows on slide anim

3 files changed, 96 insertions, 20 deletions

diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index da146027..38672353 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -351,11 +351,27 @@ void CHyprOpenGLImpl::renderRectWithDamage(wlr_box* box, const CColor& col, pixm
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shQUAD.posAttrib);
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shQUAD.texAttrib);
 
-    if (pixman_region32_not_empty(damage)) {
-        PIXMAN_DAMAGE_FOREACH(damage) {
-            const auto RECT = RECTSARR[i];
-            scissor(&RECT);
-            glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+    if (m_RenderData.clipBox.width != 0 && m_RenderData.clipBox.height != 0) {
+        pixman_region32_t damageClip;
+        pixman_region32_init(&damageClip);
+        pixman_region32_intersect_rect(&damageClip, damage, m_RenderData.clipBox.x, m_RenderData.clipBox.y, m_RenderData.clipBox.width, m_RenderData.clipBox.height);
+
+        if (pixman_region32_not_empty(&damageClip)) {
+            PIXMAN_DAMAGE_FOREACH(&damageClip) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
+        }
+
+        pixman_region32_fini(&damageClip);
+    } else {
+        if (pixman_region32_not_empty(damage)) {
+            PIXMAN_DAMAGE_FOREACH(damage) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
         }
     }
 
@@ -467,11 +483,27 @@ void CHyprOpenGLImpl::renderTextureInternalWithDamage(const CTexture& tex, wlr_b
     glEnableVertexAttribArray(shader->posAttrib);
     glEnableVertexAttribArray(shader->texAttrib);
 
-    if (pixman_region32_not_empty(m_RenderData.pDamage)) {
-        PIXMAN_DAMAGE_FOREACH(m_RenderData.pDamage) {
-            const auto RECT = RECTSARR[i];
-            scissor(&RECT);
-            glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+    if (m_RenderData.clipBox.width != 0 && m_RenderData.clipBox.height != 0) {
+        pixman_region32_t damageClip;
+        pixman_region32_init(&damageClip);
+        pixman_region32_intersect_rect(&damageClip, damage, m_RenderData.clipBox.x, m_RenderData.clipBox.y, m_RenderData.clipBox.width, m_RenderData.clipBox.height);
+
+        if (pixman_region32_not_empty(&damageClip)) {
+            PIXMAN_DAMAGE_FOREACH(&damageClip) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
+        }
+
+        pixman_region32_fini(&damageClip);
+    } else {
+        if (pixman_region32_not_empty(damage)) {
+            PIXMAN_DAMAGE_FOREACH(damage) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
         }
     }
 
@@ -832,11 +864,27 @@ void CHyprOpenGLImpl::renderBorder(wlr_box* box, const CColor& col, int round) {
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shBORDER1.posAttrib);
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shBORDER1.texAttrib);
 
-    if (pixman_region32_not_empty(m_RenderData.pDamage)) {
-        PIXMAN_DAMAGE_FOREACH(m_RenderData.pDamage) {
-            const auto RECT = RECTSARR[i];
-            scissor(&RECT);
-            glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+    if (m_RenderData.clipBox.width != 0 && m_RenderData.clipBox.height != 0) {
+        pixman_region32_t damageClip;
+        pixman_region32_init(&damageClip);
+        pixman_region32_intersect_rect(&damageClip, m_RenderData.pDamage, m_RenderData.clipBox.x, m_RenderData.clipBox.y, m_RenderData.clipBox.width, m_RenderData.clipBox.height);
+
+        if (pixman_region32_not_empty(&damageClip)) {
+            PIXMAN_DAMAGE_FOREACH(&damageClip) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
+        }
+
+        pixman_region32_fini(&damageClip);
+    } else {
+        if (pixman_region32_not_empty(m_RenderData.pDamage)) {
+            PIXMAN_DAMAGE_FOREACH(m_RenderData.pDamage) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
         }
     }
 
@@ -1074,11 +1122,27 @@ void CHyprOpenGLImpl::renderRoundedShadow(wlr_box* box, int round, int range, fl
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shSHADOW.posAttrib);
     glEnableVertexAttribArray(m_RenderData.pCurrentMonData->m_shSHADOW.texAttrib);
 
-    if (pixman_region32_not_empty(m_RenderData.pDamage)) {
-        PIXMAN_DAMAGE_FOREACH(m_RenderData.pDamage) {
-            const auto RECT = RECTSARR[i];
-            scissor(&RECT);
-            glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+    if (m_RenderData.clipBox.width != 0 && m_RenderData.clipBox.height != 0) {
+        pixman_region32_t damageClip;
+        pixman_region32_init(&damageClip);
+        pixman_region32_intersect_rect(&damageClip, m_RenderData.pDamage, m_RenderData.clipBox.x, m_RenderData.clipBox.y, m_RenderData.clipBox.width, m_RenderData.clipBox.height);
+
+        if (pixman_region32_not_empty(&damageClip)) {
+            PIXMAN_DAMAGE_FOREACH(&damageClip) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
+        }
+
+        pixman_region32_fini(&damageClip);
+    } else {
+        if (pixman_region32_not_empty(m_RenderData.pDamage)) {
+            PIXMAN_DAMAGE_FOREACH(m_RenderData.pDamage) {
+                const auto RECT = RECTSARR[i];
+                scissor(&RECT);
+                glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+            }
         }
     }
 
diff --git a/src/render/OpenGL.hpp b/src/render/OpenGL.hpp
index 30d66084..33ebb964 100644
--- a/src/render/OpenGL.hpp
+++ b/src/render/OpenGL.hpp
@@ -67,6 +67,8 @@ struct SCurrentRenderData {
 
     Vector2D    primarySurfaceUVTopLeft = Vector2D(-1, -1);
     Vector2D    primarySurfaceUVBottomRight = Vector2D(-1, -1);
+
+    wlr_box     clipBox = {};
 };
 
 class CHyprOpenGLImpl {
diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index e36fc5e1..8a1f6f3c 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -248,6 +248,15 @@ void CHyprRenderer::renderWindow(CWindow* pWindow, CMonitor* pMonitor, timespec*
 
     g_pHyprOpenGL->m_pCurrentWindow = pWindow;
 
+    // clip box for animated offsets
+    if (const auto OFFVEC = PWORKSPACE->m_vRenderOffset.vec(); OFFVEC != Vector2D()) {
+        g_pHyprOpenGL->m_RenderData.clipBox = {(int)OFFVEC.x, (int)OFFVEC.y, (int)pMonitor->vecTransformedSize.x, (int)pMonitor->vecTransformedSize.y };
+        
+        scaleBox(&g_pHyprOpenGL->m_RenderData.clipBox, pMonitor->scale);
+    } else {
+        g_pHyprOpenGL->m_RenderData.clipBox = {0, 0, 0, 0};
+    }
+
     // render window decorations first, if not fullscreen full
 
     if (mode == RENDER_PASS_ALL || mode == RENDER_PASS_MAIN) {
@@ -289,6 +298,7 @@ void CHyprRenderer::renderWindow(CWindow* pWindow, CMonitor* pMonitor, timespec*
     }
 
     g_pHyprOpenGL->m_pCurrentWindow = nullptr;
+    g_pHyprOpenGL->m_RenderData.clipBox = { 0, 0, 0, 0 };
 }
 
 void CHyprRenderer::renderLayer(SLayerSurface* pLayer, CMonitor* pMonitor, timespec* time) {