Move SourceProxy to C++ and introduce "private" module.

This gives us a bit better control in terms of what we
want to check for. It should also fix some subtle bugs
when layer and ShaderEffectSource is used as input.

Change-Id: I29de13598811623c31563ac6e88f070aee0bab54
Task-number: QTBUG-40849
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

43 files changed, 766 insertions, 199 deletions

diff --git a/src/effects/Blend.qml b/src/effects/Blend.qml
index d6abb33..34ed86e 100644
--- a/src/effects/Blend.qml
+++ b/src/effects/Blend.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype Blend
diff --git a/src/effects/BrightnessContrast.qml b/src/effects/BrightnessContrast.qml
index c5eadad..f948235 100644
--- a/src/effects/BrightnessContrast.qml
+++ b/src/effects/BrightnessContrast.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype BrightnessContrast
diff --git a/src/effects/ColorOverlay.qml b/src/effects/ColorOverlay.qml
index 1104a10..550ecc9 100644
--- a/src/effects/ColorOverlay.qml
+++ b/src/effects/ColorOverlay.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype ColorOverlay
diff --git a/src/effects/Colorize.qml b/src/effects/Colorize.qml
index ca06452..7a95125 100644
--- a/src/effects/Colorize.qml
+++ b/src/effects/Colorize.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype Colorize
diff --git a/src/effects/ConicalGradient.qml b/src/effects/ConicalGradient.qml
index 044fd46..c86a832 100644
--- a/src/effects/ConicalGradient.qml
+++ b/src/effects/ConicalGradient.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype ConicalGradient
diff --git a/src/effects/Desaturate.qml b/src/effects/Desaturate.qml
index d449cf4..0f9163c 100644
--- a/src/effects/Desaturate.qml
+++ b/src/effects/Desaturate.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype Desaturate
diff --git a/src/effects/DirectionalBlur.qml b/src/effects/DirectionalBlur.qml
index 0f57509..8f571e6 100644
--- a/src/effects/DirectionalBlur.qml
+++ b/src/effects/DirectionalBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype DirectionalBlur
diff --git a/src/effects/Displace.qml b/src/effects/Displace.qml
index 7ad9f01..a3b57c5 100644
--- a/src/effects/Displace.qml
+++ b/src/effects/Displace.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype Displace
diff --git a/src/effects/DropShadow.qml b/src/effects/DropShadow.qml
index dd0231d..d134e02 100644
--- a/src/effects/DropShadow.qml
+++ b/src/effects/DropShadow.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype DropShadow
diff --git a/src/effects/FastBlur.qml b/src/effects/FastBlur.qml
index 74da4f4..adb882c 100644
--- a/src/effects/FastBlur.qml
+++ b/src/effects/FastBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype FastBlur
diff --git a/src/effects/GammaAdjust.qml b/src/effects/GammaAdjust.qml
index 27ec5af..59f1dd8 100644
--- a/src/effects/GammaAdjust.qml
+++ b/src/effects/GammaAdjust.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype GammaAdjust
diff --git a/src/effects/GaussianBlur.qml b/src/effects/GaussianBlur.qml
index d5922ca..8c3f0e6 100644
--- a/src/effects/GaussianBlur.qml
+++ b/src/effects/GaussianBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype GaussianBlur
diff --git a/src/effects/Glow.qml b/src/effects/Glow.qml
index 245873b..6eca986 100644
--- a/src/effects/Glow.qml
+++ b/src/effects/Glow.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype Glow
diff --git a/src/effects/HueSaturation.qml b/src/effects/HueSaturation.qml
index 81de6a9..b08c6bf 100644
--- a/src/effects/HueSaturation.qml
+++ b/src/effects/HueSaturation.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype HueSaturation
diff --git a/src/effects/InnerShadow.qml b/src/effects/InnerShadow.qml
index 3981255..de59781 100644
--- a/src/effects/InnerShadow.qml
+++ b/src/effects/InnerShadow.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype InnerShadow
diff --git a/src/effects/LevelAdjust.qml b/src/effects/LevelAdjust.qml
index 543bf0a..a209cab 100644
--- a/src/effects/LevelAdjust.qml
+++ b/src/effects/LevelAdjust.qml
@@ -39,7 +39,7 @@
 *****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype LevelAdjust
diff --git a/src/effects/LinearGradient.qml b/src/effects/LinearGradient.qml
index b9d2934..5c52f6c 100644
--- a/src/effects/LinearGradient.qml
+++ b/src/effects/LinearGradient.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype LinearGradient
diff --git a/src/effects/MaskedBlur.qml b/src/effects/MaskedBlur.qml
index adfa678..19a6810 100644
--- a/src/effects/MaskedBlur.qml
+++ b/src/effects/MaskedBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype MaskedBlur
diff --git a/src/effects/OpacityMask.qml b/src/effects/OpacityMask.qml
index 2f33b8c..6653ddf 100644
--- a/src/effects/OpacityMask.qml
+++ b/src/effects/OpacityMask.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype OpacityMask
diff --git a/src/effects/RadialBlur.qml b/src/effects/RadialBlur.qml
index 04f410c..e857438 100644
--- a/src/effects/RadialBlur.qml
+++ b/src/effects/RadialBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype RadialBlur
diff --git a/src/effects/RadialGradient.qml b/src/effects/RadialGradient.qml
index afd6aff..5196ba2 100644
--- a/src/effects/RadialGradient.qml
+++ b/src/effects/RadialGradient.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype RadialGradient
diff --git a/src/effects/RectangularGlow.qml b/src/effects/RectangularGlow.qml
index d0b89df..8ed1ac7 100644
--- a/src/effects/RectangularGlow.qml
+++ b/src/effects/RectangularGlow.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype RectangularGlow
diff --git a/src/effects/RecursiveBlur.qml b/src/effects/RecursiveBlur.qml
index ce098bf..87c0681 100644
--- a/src/effects/RecursiveBlur.qml
+++ b/src/effects/RecursiveBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype RecursiveBlur
diff --git a/src/effects/ThresholdMask.qml b/src/effects/ThresholdMask.qml
index cdb3c79..399e47c 100644
--- a/src/effects/ThresholdMask.qml
+++ b/src/effects/ThresholdMask.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype ThresholdMask
diff --git a/src/effects/ZoomBlur.qml b/src/effects/ZoomBlur.qml
index df48c57..77f0f9f 100644
--- a/src/effects/ZoomBlur.qml
+++ b/src/effects/ZoomBlur.qml
@@ -39,7 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
-import "private"
+import QtGraphicalEffects.private 1.0
 
 /*!
     \qmltype ZoomBlur
diff --git a/src/effects/effects.pro b/src/effects/effects.pro
index 355cfff..32e6d0b 100644
--- a/src/effects/effects.pro
+++ b/src/effects/effects.pro
@@ -1,39 +1,3 @@
-TARGETPATH = "QtGraphicalEffects"
+TEMPLATE=subdirs
+SUBDIRS=effects_plugin.pro private
 
-QML_FILES = \
-    Blend.qml \
-    BrightnessContrast.qml \
-    ColorOverlay.qml \
-    Colorize.qml \
-    ConicalGradient.qml \
-    Desaturate.qml \
-    DirectionalBlur.qml \
-    Displace.qml \
-    DropShadow.qml \
-    FastBlur.qml \
-    GammaAdjust.qml \
-    GaussianBlur.qml \
-    Glow.qml \
-    HueSaturation.qml \
-    InnerShadow.qml \
-    LevelAdjust.qml \
-    LinearGradient.qml \
-    MaskedBlur.qml \
-    OpacityMask.qml \
-    RadialBlur.qml \
-    RadialGradient.qml \
-    RectangularGlow.qml \
-    RecursiveBlur.qml \
-    ThresholdMask.qml \
-    ZoomBlur.qml \
-    private/FastGlow.qml \
-    private/FastInnerShadow.qml \
-    private/FastMaskedBlur.qml \
-    private/GaussianDirectionalBlur.qml \
-    private/GaussianGlow.qml \
-    private/GaussianInnerShadow.qml \
-    private/GaussianMaskedBlur.qml \
-    private/SourceProxy.qml
-
-QMAKE_DOCS = $$PWD/doc/qtgraphicaleffects.qdocconf
-load(qml_module)
diff --git a/src/effects/effects_plugin.pro b/src/effects/effects_plugin.pro
new file mode 100644
index 0000000..3494d17
--- /dev/null
+++ b/src/effects/effects_plugin.pro
@@ -0,0 +1,31 @@
+TARGETPATH = "QtGraphicalEffects"
+
+QML_FILES = \
+    Blend.qml \
+    BrightnessContrast.qml \
+    ColorOverlay.qml \
+    Colorize.qml \
+    ConicalGradient.qml \
+    Desaturate.qml \
+    DirectionalBlur.qml \
+    Displace.qml \
+    DropShadow.qml \
+    FastBlur.qml \
+    GammaAdjust.qml \
+    GaussianBlur.qml \
+    Glow.qml \
+    HueSaturation.qml \
+    InnerShadow.qml \
+    LevelAdjust.qml \
+    LinearGradient.qml \
+    MaskedBlur.qml \
+    OpacityMask.qml \
+    RadialBlur.qml \
+    RadialGradient.qml \
+    RectangularGlow.qml \
+    RecursiveBlur.qml \
+    ThresholdMask.qml \
+    ZoomBlur.qml \
+
+QMAKE_DOCS = $$PWD/doc/qtgraphicaleffects.qdocconf
+load(qml_module)
diff --git a/src/effects/private/FastGlow.qml b/src/effects/private/FastGlow.qml
index d57cc58..c723619 100644
--- a/src/effects/private/FastGlow.qml
+++ b/src/effects/private/FastGlow.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/FastInnerShadow.qml b/src/effects/private/FastInnerShadow.qml
index 3aaba89..ca25053 100644
--- a/src/effects/private/FastInnerShadow.qml
+++ b/src/effects/private/FastInnerShadow.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/FastMaskedBlur.qml b/src/effects/private/FastMaskedBlur.qml
index 8792855..e44ee4b 100644
--- a/src/effects/private/FastMaskedBlur.qml
+++ b/src/effects/private/FastMaskedBlur.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/GaussianDirectionalBlur.qml b/src/effects/private/GaussianDirectionalBlur.qml
index 89dbb00..28dc52c 100644
--- a/src/effects/private/GaussianDirectionalBlur.qml
+++ b/src/effects/private/GaussianDirectionalBlur.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/GaussianGlow.qml b/src/effects/private/GaussianGlow.qml
index 35e7717..7de29a1 100644
--- a/src/effects/private/GaussianGlow.qml
+++ b/src/effects/private/GaussianGlow.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/GaussianInnerShadow.qml b/src/effects/private/GaussianInnerShadow.qml
index be09edf..74c98de 100644
--- a/src/effects/private/GaussianInnerShadow.qml
+++ b/src/effects/private/GaussianInnerShadow.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/GaussianMaskedBlur.qml b/src/effects/private/GaussianMaskedBlur.qml
index dedb921..0ca2c5e 100644
--- a/src/effects/private/GaussianMaskedBlur.qml
+++ b/src/effects/private/GaussianMaskedBlur.qml
@@ -39,6 +39,7 @@
 ****************************************************************************/
 
 import QtQuick 2.0
+import QtGraphicalEffects.private 1.0
 
 Item {
     id: rootItem
diff --git a/src/effects/private/SourceProxy.qml b/src/effects/private/SourceProxy.qml
deleted file mode 100644
index e23913d..0000000
--- a/src/effects/private/SourceProxy.qml
+++ /dev/null
@@ -1,136 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the Qt Graphical Effects module.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** You may use this file under the terms of the BSD license as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-import QtQuick 2.0
-
-Item {
-    id: rootItem
-    property variant input
-    property variant output
-    property variant sourceRect
-    visible: false
-
-    Component.onCompleted: evaluateInput()
-
-    onInputChanged: evaluateInput()
-
-    onSourceRectChanged: evaluateInput()
-
-    function evaluateInput() {
-        if (input == undefined) {
-            output =  input
-        }
-        else if (sourceRect != undefined && sourceRect != Qt.rect(0, 0, 0, 0) && !isQQuickShaderEffectSource(input)) {
-            proxySource.sourceItem = input
-            output = proxySource
-            proxySource.sourceRect = sourceRect
-        }
-        else if (isQQuickItemLayerEnabled(input)) {
-            output = input
-        }
-        else if ((isQQuickImage(input) && !hasTileMode(input) && !hasChildren(input))) {
-            output = input
-        }
-        else if (isQQuickShaderEffectSource(input)) {
-            output = input
-        }
-        else {
-            proxySource.sourceItem = input
-            output = proxySource
-            proxySource.sourceRect = Qt.rect(0, 0, 0, 0)
-        }
-    }
-
-    function isQQuickItemLayerEnabled(item) {
-        if (item.hasOwnProperty("layer")) {
-            var l = item["layer"]
-            if (l.hasOwnProperty("enabled") && l["enabled"].toString() == "true")
-                return true
-        }
-        return false
-    }
-
-    function isQQuickImage(item) {
-        var imageProperties = [ "fillMode", "progress", "asynchronous", "sourceSize", "status", "smooth" ]
-        return hasProperties(item, imageProperties)
-    }
-
-    function isQQuickShaderEffectSource(item) {
-        var shaderEffectSourceProperties = [ "hideSource", "format", "sourceItem", "mipmap", "wrapMode", "live", "recursive", "sourceRect" ]
-        return hasProperties(item, shaderEffectSourceProperties)
-    }
-
-    function hasProperties(item, properties) {
-        var counter = 0
-            for (var j = 0; j < properties.length; j++) {
-                if (item.hasOwnProperty(properties [j]))
-                    counter++
-            }
-        return properties.length == counter
-    }
-
-    function hasChildren(item) {
-        if (item.hasOwnProperty("childrenRect")) {
-            if (item["childrenRect"].toString() != "QRectF(0, 0, 0, 0)")
-                return true
-            else
-                return false
-        }
-        return false
-    }
-
-    function hasTileMode(item) {
-        if (item.hasOwnProperty("fillMode")) {
-            if (item["fillMode"].toString() != "0")
-                return true
-            else
-                return false
-        }
-        return false
-    }
-
-    ShaderEffectSource {
-        id: proxySource
-        live: rootItem.input != rootItem.output
-        hideSource: false
-        smooth: true
-        visible: false
-    }
-}
diff --git a/src/effects/private/plugin.cpp b/src/effects/private/plugin.cpp
new file mode 100644
index 0000000..6cd9047
--- /dev/null
+++ b/src/effects/private/plugin.cpp
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Graphical Effects module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtQml/qqmlextensionplugin.h>
+#include <QtQml/qqml.h>
+#include <QtQml/qqmlengine.h>
+
+#include "qgfxsourceproxy_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QtGraphicalEffectsPlugin : public QQmlExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface")
+
+public:
+    virtual void registerTypes(const char *uri)
+    {
+        Q_ASSERT(QByteArray(uri) == QByteArrayLiteral("QtGraphicalEffects.private"));
+        qmlRegisterType<QGfxSourceProxy>(uri, 1, 0, "SourceProxy");
+    }
+};
+
+QT_END_NAMESPACE
+
+#include "plugin.moc"
diff --git a/src/effects/private/private.pro b/src/effects/private/private.pro
new file mode 100644
index 0000000..9346b41
--- /dev/null
+++ b/src/effects/private/private.pro
@@ -0,0 +1,24 @@
+CXX_MODULE=qml
+TARGETPATH=QtGraphicalEffects/private
+TARGET = qtgraphicaleffectsprivate
+
+QT += quick qml
+# Needed to get a hold of QQuickShaderEffectSource, QQuickImage and QQuickItemPrivate
+QT += quick-private gui-private core-private qml-private
+
+SOURCES += plugin.cpp \
+           qgfxsourceproxy.cpp
+
+HEADERS += \
+           qgfxsourceproxy_p.h
+
+QML_FILES = \
+    FastGlow.qml \
+    FastInnerShadow.qml \
+    FastMaskedBlur.qml \
+    GaussianDirectionalBlur.qml \
+    GaussianGlow.qml \
+    GaussianInnerShadow.qml \
+    GaussianMaskedBlur.qml
+
+load(qml_plugin)
diff --git a/src/effects/private/qgfxsourceproxy.cpp b/src/effects/private/qgfxsourceproxy.cpp
new file mode 100644
index 0000000..5ee9280
--- /dev/null
+++ b/src/effects/private/qgfxsourceproxy.cpp
@@ -0,0 +1,151 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Graphical Effects module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgfxsourceproxy_p.h"
+
+#include <private/qquickshadereffectsource_p.h>
+#include <private/qquickitem_p.h>
+#include <private/qquickimage_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QGfxSourceProxy::QGfxSourceProxy(QQuickItem *parentItem)
+    : QQuickItem(parentItem)
+    , m_input(0)
+    , m_output(0)
+    , m_proxy(0)
+    , m_interpolation(AnyInterpolation)
+{
+}
+
+QGfxSourceProxy::~QGfxSourceProxy()
+{
+    delete m_proxy;
+}
+
+void QGfxSourceProxy::setInput(QQuickItem *input)
+{
+    if (m_input == input)
+        return;
+    m_input = input;
+    polish();
+    emit inputChanged();
+}
+
+void QGfxSourceProxy::setOutput(QQuickItem *output)
+{
+    if (m_output == output)
+        return;
+    m_output = output;
+    emit activeChanged();
+    emit outputChanged();
+}
+
+void QGfxSourceProxy::setSourceRect(const QRectF &sourceRect)
+{
+    if (m_sourceRect == sourceRect)
+        return;
+    m_sourceRect = sourceRect;
+    polish();
+    emit sourceRectChanged();
+}
+
+void QGfxSourceProxy::setInterpolation(Interpolation i)
+{
+    if (m_interpolation == i)
+        return;
+    m_interpolation = i;
+    polish();
+    emit interpolationChanged();
+}
+
+
+void QGfxSourceProxy::useProxy()
+{
+    if (!m_proxy)
+        m_proxy = new QQuickShaderEffectSource(this);
+    m_proxy->setSourceRect(m_sourceRect);
+    m_proxy->setSourceItem(m_input);
+    m_proxy->setSmooth(true);
+    setOutput(m_proxy);
+}
+
+void QGfxSourceProxy::updatePolish()
+{
+    QQuickItemPrivate *d = QQuickItemPrivate::get(m_input);
+
+    if (m_input == 0) {
+        setOutput(0);
+        return;
+    }
+
+    QQuickImage *image = qobject_cast<QQuickImage *>(m_input);
+    QQuickShaderEffectSource *shaderSource = qobject_cast<QQuickShaderEffectSource *>(m_input);
+    bool layered = d->extra.isAllocated() && d->extra->layer && d->extra->layer->enabled();
+
+    if (shaderSource) {
+        if ((shaderSource->sourceRect() != m_sourceRect)
+            || (m_interpolation == LinearInterpolation && !shaderSource->smooth())
+            || (m_interpolation == NearestInterpolation && shaderSource->smooth()))
+            useProxy();
+        else
+            setOutput(m_input);
+
+    } else if (layered) {
+        if ((d->extra->layer->sourceRect() != m_sourceRect)
+            || (m_interpolation == LinearInterpolation && !d->extra->layer->smooth())
+            || (m_interpolation == NearestInterpolation && d->extra->layer->smooth()))
+            useProxy();
+        else
+            setOutput(m_input);
+
+    } else if (image && image->fillMode() == QQuickImage::Stretch && m_input->childItems().size() == 0) {
+        // item is an image with default tiling, use directly
+        setOutput(m_input);
+
+    } else if (m_input->isTextureProvider() && m_input->childItems().size() == 0) {
+        // item is a texture provider without children, use directly...
+        setOutput(m_input);
+
+    } else {
+        useProxy();
+    }
+
+    // Remove the proxy if it is not in use..
+    if (m_proxy && m_output == m_input) {
+        delete m_proxy;
+        m_proxy = 0;
+    }
+}
+
+QT_END_NAMESPACE
diff --git a/src/effects/private/qgfxsourceproxy_p.h b/src/effects/private/qgfxsourceproxy_p.h
new file mode 100644
index 0000000..3356dd6
--- /dev/null
+++ b/src/effects/private/qgfxsourceproxy_p.h
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Graphical Effects module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGFXSOURCEPROXY_P_H
+#define QGFXSOURCEPROXY_P_H
+
+#include <QtQuick/QQuickItem>
+
+QT_BEGIN_NAMESPACE
+
+class QQuickShaderEffectSource;
+
+class QGfxSourceProxy : public QQuickItem
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QQuickItem *input READ input WRITE setInput NOTIFY inputChanged)
+    Q_PROPERTY(QQuickItem *output READ output NOTIFY outputChanged)
+    Q_PROPERTY(QRectF sourceRect READ sourceRect WRITE setSourceRect NOTIFY sourceRectChanged)
+
+    Q_PROPERTY(bool active READ isActive NOTIFY activeChanged)
+    Q_PROPERTY(Interpolation interpolation READ interpolation WRITE setInterpolation NOTIFY interpolationChanged)
+
+    Q_ENUMS(Interpolation)
+
+public:
+    enum Interpolation {
+        AnyInterpolation,
+        NearestInterpolation,
+        LinearInterpolation
+    };
+
+    QGfxSourceProxy(QQuickItem *item = 0);
+    ~QGfxSourceProxy();
+
+    QQuickItem *input() const { return m_input; }
+    void setInput(QQuickItem *input);
+
+    QQuickItem *output() const { return m_output; }
+
+    QRectF sourceRect() const { return m_sourceRect; }
+    void setSourceRect(const QRectF &sourceRect);
+
+    bool isActive() const { return m_output && m_output != m_input; }
+
+    void setInterpolation(Interpolation i);
+    Interpolation interpolation() const { return m_interpolation; }
+
+protected:
+    void updatePolish() Q_DECL_OVERRIDE;
+
+signals:
+    void inputChanged();
+    void outputChanged();
+    void sourceRectChanged();
+    void activeChanged();
+    void interpolationChanged();
+
+private:
+    void setOutput(QQuickItem *output);
+    void useProxy();
+
+    QRectF m_sourceRect;
+    QQuickItem *m_input;
+    QQuickItem *m_output;
+    QQuickShaderEffectSource *m_proxy;
+
+    Interpolation m_interpolation;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGFXSOURCEPROXY_P_H
diff --git a/src/effects/private/qmldir b/src/effects/private/qmldir
new file mode 100644
index 0000000..e17d9bb
--- /dev/null
+++ b/src/effects/private/qmldir
@@ -0,0 +1,9 @@
+module QtGraphicalEffects.private
+plugin qtgraphicaleffectsprivate
+FastGlow 1.0 FastGlow.qml
+FastInnerShadow 1.0 FastInnerShadow.qml
+FastMaskedBlur 1.0 FastMaskedBlur.qml
+GaussianDirectionalBlur 1.0 GaussianDirectionalBlur.qml
+GaussianGlow 1.0 GaussianGlow.qml
+GaussianInnerShadow 1.0 GaussianInnerShadow.qml
+GaussianMaskedBlur 1.0 GaussianMaskedBlur.qml
diff --git a/src/effects/qmldir b/src/effects/qmldir
index 1756f2f..e16013f 100644
--- a/src/effects/qmldir
+++ b/src/effects/qmldir
@@ -1,3 +1,4 @@
+classname QtGraphicalEffectsPlugin
 Blend 1.0 Blend.qml
 BrightnessContrast 1.0 BrightnessContrast.qml
 Colorize 1.0 Colorize.qml
@@ -24,3 +25,4 @@ RectangularGlow 1.0 RectangularGlow.qml
 ThresholdMask 1.0 ThresholdMask.qml
 ZoomBlur 1.0 ZoomBlur.qml
 designersupported
+
diff --git a/tests/manual/SourceProxyTest.qml b/tests/manual/SourceProxyTest.qml
new file mode 100644
index 0000000..e68bc35
--- /dev/null
+++ b/tests/manual/SourceProxyTest.qml
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Graphical Effects module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtGraphicalEffects.private 1.0
+import QtQuick 2.4
+
+Rectangle {
+
+    Rectangle {
+        width: parent.width
+        height: 1
+        color: "lightsteelblue"
+    }
+
+    id: root
+
+    height: 40
+    width: parent.width
+
+    property alias proxyInterpolation: proxy.interpolation
+    property bool proxyPadding: false
+
+    property string sourcing; // "layered", "shadersource", "none";
+
+    property bool smoothness: true
+    property bool padding: false
+
+    property alias label: text.text
+
+
+    property bool expectProxy: false
+
+    color: proxy.active ? "darkred" : "darkblue"
+
+    Text {
+        id: text
+        color: "white"
+        font.pixelSize: 14
+        font.bold: true
+
+        anchors.centerIn: parent
+
+        layer.enabled: root.sourcing == "layered"
+        layer.smooth: root.smoothness
+        layer.sourceRect: padding ? Qt.rect(-1, -1, text.width, text.height) : Qt.rect(0, 0, 0, 0);
+    }
+
+    ShaderEffectSource {
+        id: shaderSource
+        sourceItem: text
+        smooth: root.smoothness
+        sourceRect: padding ? Qt.rect(-1, -1, text.width, text.height) : Qt.rect(0, 0, 0, 0);
+    }
+
+    SourceProxy {
+        id: proxy
+        input: sourcing == "shadersource" ? shaderSource : text;
+        visible: false
+        sourceRect: proxyPadding ? Qt.rect(-1, -1, text.width, text.height) : Qt.rect(0, 0, 0, 0);
+    }
+
+    Text {
+        color: "red"
+        anchors.right: parent.right
+        anchors.verticalCenter: parent.verticalCenter;
+        rotation: 45
+        text: "FAIL"
+        font.pixelSize: 12
+        font.bold: true
+        visible: root.expectProxy != proxy.active
+    }
+
+}
diff --git a/tests/manual/testSourceProxy.qml b/tests/manual/testSourceProxy.qml
new file mode 100644
index 0000000..1ca3f95
--- /dev/null
+++ b/tests/manual/testSourceProxy.qml
@@ -0,0 +1,245 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Jolla Ltd, author: <gunnar.sletta@jollamobile.com>
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Graphical Effects module.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of The Qt Company Ltd nor the names of its
+**     contributors may be used to endorse or promote products derived
+**     from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtGraphicalEffects.private 1.0
+import QtQuick 2.4;
+
+Item {
+    id: root
+
+    width: 400
+    height: 600
+
+    // Text {
+    //     text: "source: layered, padded\nproxy: expect-no-padding"
+    //     layer.enabled: true
+    //     layer.sourceRect: Qt.rect(-1, -1, width, height);
+    //     font.pixelSize: 14
+    //     font.bold: true
+    // }
+
+    Flickable {
+
+        anchors.fill: parent
+
+        contentWidth: root.width
+        contentHeight: column.height
+
+        Column {
+            id: column
+            width: root.width
+
+            SourceProxyTest {
+                label: "source: layered, padded\nproxy: expect-no-padding"
+                sourcing: "layered"
+                proxyPadding: false
+                padding: true
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: layered, non-padded\nproxy: expect-no-padding"
+                sourcing: "layered"
+                proxyPadding: false
+                padding: false
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: layered, padded\nproxy: expect-padding"
+                sourcing: "layered"
+                proxyPadding: true
+                padding: true
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: layered, non-padded\nproxy: expect-padding"
+                sourcing: "layered"
+                proxyPadding: true
+                padding: false
+                expectProxy: true
+            }
+
+
+            SourceProxyTest {
+                label: "source: shadersource, padded\nproxy: expect-no-padding"
+                sourcing: "shadersource"
+                proxyPadding: false
+                padding: true
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: shadersource, non-padded\nproxy: expect-no-padding"
+                sourcing: "shadersource"
+                proxyPadding: false
+                padding: false
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: shadersource, padded\nproxy: expect-padding"
+                sourcing: "shadersource"
+                proxyPadding: true
+                padding: true
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: shadersource, non-padded\nproxy: expect-padding"
+                sourcing: "shadersource"
+                proxyPadding: true
+                padding: false
+                expectProxy: true
+            }
+
+
+            SourceProxyTest {
+                label: "source: layered, non-smooth\nproxy: any-interpolation, "
+                sourcing: "layered"
+                smoothness: false
+                proxyInterpolation: SourceProxy.AnyInterpolation
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: layered, smooth\nproxy: any-interpolation, "
+                sourcing: "layered"
+                smoothness: true
+                proxyInterpolation: SourceProxy.AnyInterpolation
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: layered, non-smooth\nproxy: nearest-interpolation, "
+                sourcing: "layered"
+                smoothness: false
+                proxyInterpolation: SourceProxy.NearestInterpolation
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: layered, smooth\nproxy: nearest-interpolation, "
+                sourcing: "layered"
+                smoothness: true
+                proxyInterpolation: SourceProxy.NearestInterpolation
+                expectProxy: true
+            }
+
+            SourceProxyTest {
+                label: "source: layered, non-smooth\nproxy: linear-interpolation, "
+                sourcing: "layered"
+                smoothness: false
+                proxyInterpolation: SourceProxy.LinearInterpolation
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: layered, smooth\nproxy: linear-interpolation, "
+                sourcing: "layered"
+                smoothness: true
+                proxyInterpolation: SourceProxy.LinearInterpolation
+                expectProxy: false
+            }
+
+
+
+            SourceProxyTest {
+                label: "source: shadersource, non-smooth\nproxy: any-interpolation, "
+                sourcing: "shadersource"
+                smoothness: false
+                proxyInterpolation: SourceProxy.AnyInterpolation
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: shadersource, smooth\nproxy: any-interpolation, "
+                sourcing: "shadersource"
+                smoothness: true
+                proxyInterpolation: SourceProxy.AnyInterpolation
+                expectProxy: false
+            }
+
+            SourceProxyTest {
+                label: "source: shadersource, non-smooth\nproxy: nearest-interpolation, "
+                sourcing: "shadersource"
+                smoothness: false
+                proxyInterpolation: SourceProxy.NearestInterpolation
+                expectProxy: false
+            }
+            SourceProxyTest {
+                label: "source: shadersource, smooth\nproxy: nearest-interpolation, "
+                sourcing: "shadersource"
+                smoothness: true
+                proxyInterpolation: SourceProxy.NearestInterpolation
+                expectProxy: true
+            }
+
+            SourceProxyTest {
+                label: "source: shadersource, non-smooth\nproxy: linear-interpolation, "
+                sourcing: "shadersource"
+                smoothness: false
+                proxyInterpolation: SourceProxy.LinearInterpolation
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: shadersource, smooth\nproxy: linear-interpolation, "
+                sourcing: "shadersource"
+                smoothness: true
+                proxyInterpolation: SourceProxy.LinearInterpolation
+                expectProxy: false
+            }
+
+
+
+            SourceProxyTest {
+                label: "source: none\nproxy: any-interpolation"
+                sourcing: "none"
+                proxyInterpolation: SourceProxy.AnyInterpolation
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: none\nproxy: nearest-interpolation"
+                sourcing: "none"
+                proxyInterpolation: SourceProxy.NearestInterpolation
+                expectProxy: true
+            }
+            SourceProxyTest {
+                label: "source: none\nproxy: linear-interpolation"
+                sourcing: "none"
+                proxyInterpolation: SourceProxy.LinearInterpolation
+                expectProxy: true
+            }
+
+
+        }
+
+    }
+}