From 8518a7ea8c3971e27702aac00ea33e39520c6571 Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Sun, 14 Nov 2021 16:26:49 +0200
Subject: [PATCH] Drop Scene::Window::windowTexture()

---
 src/scene.h                        |  4 ----
 src/scenes/opengl/scene_opengl.cpp | 38 ------------------------------
 src/scenes/opengl/scene_opengl.h   |  1 -
 3 files changed, 43 deletions(-)

diff --git a/src/scene.h b/src/scene.h
index c3f796bd46..9ad3dab089 100644
--- a/src/scene.h
+++ b/src/scene.h
@@ -316,10 +316,6 @@ public:
     SurfaceItem *surfaceItem() const;
     ShadowItem *shadowItem() const;
 
-    virtual QSharedPointer<GLTexture> windowTexture() {
-        return {};
-    }
-
 protected:
     Toplevel* toplevel;
 private:
diff --git a/src/scenes/opengl/scene_opengl.cpp b/src/scenes/opengl/scene_opengl.cpp
index 8091362022..c5c1a6e1d2 100644
--- a/src/scenes/opengl/scene_opengl.cpp
+++ b/src/scenes/opengl/scene_opengl.cpp
@@ -933,44 +933,6 @@ void OpenGLWindow::performPaint(int mask, const QRegion &region, const WindowPai
     }
 }
 
-QSharedPointer<GLTexture> OpenGLWindow::windowTexture()
-{
-    OpenGLSurfaceTexture *frame = nullptr;
-    const SurfaceItem *item = surfaceItem();
-
-    if (item && item->pixmap()) {
-        frame = static_cast<OpenGLSurfaceTexture *>(item->pixmap()->texture());
-    }
-
-    if (frame && item->childItems().isEmpty() && frame->texture()) {
-        return QSharedPointer<GLTexture>(new GLTexture(*frame->texture()));
-    } else {
-        auto effectWindow = window()->effectWindow();
-        const QRect virtualGeometry = window()->bufferGeometry();
-        QSharedPointer<GLTexture> texture(new GLTexture(GL_RGBA8, virtualGeometry.size() * window()->bufferScale()));
-
-        QScopedPointer<GLRenderTarget> framebuffer(new KWin::GLRenderTarget(*texture));
-        GLRenderTarget::pushRenderTarget(framebuffer.data());
-
-        auto renderVSG = GLRenderTarget::virtualScreenGeometry();
-        const QRect outputGeometry = { virtualGeometry.topLeft(), texture->size() };
-        GLVertexBuffer::setVirtualScreenGeometry(outputGeometry);
-        GLRenderTarget::setVirtualScreenGeometry(outputGeometry);
-
-        QMatrix4x4 mvp;
-        mvp.ortho(virtualGeometry.x(), virtualGeometry.x() + virtualGeometry.width(), virtualGeometry.y(), virtualGeometry.y() + virtualGeometry.height(), -1, 1);
-
-        WindowPaintData data(effectWindow);
-        data.setProjectionMatrix(mvp);
-
-        performPaint(Scene::PAINT_WINDOW_TRANSFORMED, outputGeometry, data);
-        GLRenderTarget::popRenderTarget();
-        GLVertexBuffer::setVirtualScreenGeometry(renderVSG);
-        GLRenderTarget::setVirtualScreenGeometry(renderVSG);
-        return texture;
-    }
-}
-
 //****************************************
 // SceneOpenGL::EffectFrame
 //****************************************
diff --git a/src/scenes/opengl/scene_opengl.h b/src/scenes/opengl/scene_opengl.h
index 5c3ab1302b..79636c7beb 100644
--- a/src/scenes/opengl/scene_opengl.h
+++ b/src/scenes/opengl/scene_opengl.h
@@ -120,7 +120,6 @@ public:
     ~OpenGLWindow() override;
 
     void performPaint(int mask, const QRegion &region, const WindowPaintData &data) override;
-    QSharedPointer<GLTexture> windowTexture() override;
 
 private:
     QMatrix4x4 modelViewProjectionMatrix(int mask, const WindowPaintData &data) const;