scene: Pass dirty region to SceneOpenGLTexture::updateTexture

src/platformsupport/scenes/opengl/abstract_egl_backend.cpp

@@ -435,7 +435,7 @@ bool AbstractEglTexture::loadTexture(WindowPixmap *pixmap)
     return loadEglTexture(buffer);
 }
 
-void AbstractEglTexture::updateTexture(WindowPixmap *pixmap)
+void AbstractEglTexture::updateTexture(WindowPixmap *pixmap, const QRegion &region)
 {
     // FIXME: Refactor this method.
 
@@ -444,7 +444,7 @@ void AbstractEglTexture::updateTexture(WindowPixmap *pixmap)
         if (updateFromFBO(pixmap->fbo())) {
             return;
         }
-        if (updateFromInternalImageObject(pixmap)) {
+        if (updateFromInternalImageObject(pixmap, region)) {
             return;
         }
         return;
@@ -681,7 +681,7 @@ static QRegion scale(const QRegion &region, qreal scaleFactor)
     return scaled;
 }
 
-bool AbstractEglTexture::updateFromInternalImageObject(WindowPixmap *pixmap)
+bool AbstractEglTexture::updateFromInternalImageObject(WindowPixmap *pixmap, const QRegion &region)
 {
     const QImage image = pixmap->internalImage();
     if (image.isNull()) {
@@ -693,7 +693,7 @@ bool AbstractEglTexture::updateFromInternalImageObject(WindowPixmap *pixmap)
         return loadInternalImageObject(pixmap);
     }
 
-    createTextureSubImage(image, scale(pixmap->toplevel()->damage(), image.devicePixelRatio()));
+    createTextureSubImage(image, scale(region, image.devicePixelRatio()));
 
     return true;
 }

src/platformsupport/scenes/opengl/abstract_egl_backend.h

@@ -96,7 +96,7 @@ class KWIN_EXPORT AbstractEglTexture : public SceneOpenGLTexturePrivate
 public:
     ~AbstractEglTexture() override;
     bool loadTexture(WindowPixmap *pixmap) override;
-    void updateTexture(WindowPixmap *pixmap) override;
+    void updateTexture(WindowPixmap *pixmap, const QRegion &region) override;
     OpenGLBackend *backend() override;
 
 protected:
@@ -120,7 +120,7 @@ private:
     bool loadInternalImageObject(WindowPixmap *pixmap);
     EGLImageKHR attach(const QPointer<KWaylandServer::BufferInterface> &buffer);
     bool updateFromFBO(const QSharedPointer<QOpenGLFramebufferObject> &fbo);
-    bool updateFromInternalImageObject(WindowPixmap *pixmap);
+    bool updateFromInternalImageObject(WindowPixmap *pixmap, const QRegion &region);
     SceneOpenGLTexture *q;
     AbstractEglBackend *m_backend;
     EGLImageKHR m_image;

src/platformsupport/scenes/opengl/texture.cpp

@@ -47,10 +47,10 @@ bool SceneOpenGLTexture::load(WindowPixmap *pixmap)
     return d->loadTexture(pixmap);
 }
 
-void SceneOpenGLTexture::updateFromPixmap(WindowPixmap *pixmap)
+void SceneOpenGLTexture::updateFromPixmap(WindowPixmap *pixmap, const QRegion &region)
 {
     Q_D(SceneOpenGLTexture);
-    d->updateTexture(pixmap);
+    d->updateTexture(pixmap, region);
 }
 
 SceneOpenGLTexturePrivate::SceneOpenGLTexturePrivate()
@@ -61,9 +61,10 @@ SceneOpenGLTexturePrivate::~SceneOpenGLTexturePrivate()
 {
 }
 
-void SceneOpenGLTexturePrivate::updateTexture(WindowPixmap *pixmap)
+void SceneOpenGLTexturePrivate::updateTexture(WindowPixmap *pixmap, const QRegion &region)
 {
     Q_UNUSED(pixmap)
+    Q_UNUSED(region)
 }
 
 }

src/platformsupport/scenes/opengl/texture.h

@@ -33,7 +33,7 @@ private:
     SceneOpenGLTexture(SceneOpenGLTexturePrivate& dd);
 
     bool load(WindowPixmap *pixmap);
-    void updateFromPixmap(WindowPixmap *pixmap);
+    void updateFromPixmap(WindowPixmap *pixmap, const QRegion &region);
 
     Q_DECLARE_PRIVATE(SceneOpenGLTexture)
 
@@ -46,7 +46,7 @@ public:
     ~SceneOpenGLTexturePrivate() override;
 
     virtual bool loadTexture(WindowPixmap *pixmap) = 0;
-    virtual void updateTexture(WindowPixmap *pixmap);
+    virtual void updateTexture(WindowPixmap *pixmap, const QRegion &region);
     virtual OpenGLBackend *backend() = 0;
 
 protected:

src/plugins/platforms/drm/egl_stream_backend.cpp

@@ -614,7 +614,7 @@ bool EglStreamTexture::loadTexture(WindowPixmap *pixmap)
     }
 }
 
-void EglStreamTexture::updateTexture(WindowPixmap *pixmap)
+void EglStreamTexture::updateTexture(WindowPixmap *pixmap, const QRegion &region)
 {
     using namespace KWaylandServer;
     SurfaceInterface *surface = pixmap->surface();
@@ -634,7 +634,7 @@ void EglStreamTexture::updateTexture(WindowPixmap *pixmap)
         }
     } else {
         // Not an EGLStream surface
-        AbstractEglTexture::updateTexture(pixmap);
+        AbstractEglTexture::updateTexture(pixmap, region);
     }
 }
 

src/plugins/platforms/drm/egl_stream_backend.h

@@ -82,7 +82,7 @@ class EglStreamTexture : public AbstractEglTexture
 public:
     ~EglStreamTexture() override;
     bool loadTexture(WindowPixmap *pixmap) override;
-    void updateTexture(WindowPixmap *pixmap) override;
+    void updateTexture(WindowPixmap *pixmap, const QRegion &region) override;
 
 private:
     EglStreamTexture(SceneOpenGLTexture *texture, EglStreamBackend *backend);

src/plugins/scenes/opengl/scene_opengl.cpp

@@ -1629,7 +1629,7 @@ bool OpenGLWindowPixmap::bind()
 {
     if (!m_texture->isNull()) {
         if (needsPixmapUpdate(this)) {
-            m_texture->updateFromPixmap(this);
+            m_texture->updateFromPixmap(this, toplevel->damage());
             // mipmaps need to be updated
             m_texture->setDirty();
         }