Add ShaderImage backend node

Change-Id: Ife2e96df656ae220ecfe1e707d25e49e03ea8809
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Michael Brasser <michael.brasser@live.com>
 

3 files changed, 233 insertions, 1 deletions

diff --git a/tests/auto/render/render.pro b/tests/auto/render/render.pro
index 8c5c43483..786d8050f 100644
--- a/tests/auto/render/render.pro
+++ b/tests/auto/render/render.pro
@@ -104,7 +104,8 @@ qtConfig(private_tests) {
         setfence \
         waitfence \
         qtexturedataupdate \
-        qshaderimage
+        qshaderimage \
+        shaderimage
 
     QT_FOR_CONFIG = 3dcore-private
     # TO DO: These could be restored to be executed in all cases
diff --git a/tests/auto/render/shaderimage/shaderimage.pro b/tests/auto/render/shaderimage/shaderimage.pro
new file mode 100644
index 000000000..cbee46356
--- /dev/null
+++ b/tests/auto/render/shaderimage/shaderimage.pro
@@ -0,0 +1,12 @@
+TEMPLATE = app
+
+TARGET = tst_shaderimage
+
+QT += 3dcore 3dcore-private 3drender 3drender-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_shaderimage.cpp
+
+include(../../core/common/common.pri)
+include(../commons/commons.pri)
diff --git a/tests/auto/render/shaderimage/tst_shaderimage.cpp b/tests/auto/render/shaderimage/tst_shaderimage.cpp
new file mode 100644
index 000000000..6f1e691cc
--- /dev/null
+++ b/tests/auto/render/shaderimage/tst_shaderimage.cpp
@@ -0,0 +1,219 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtTest/QTest>
+#include <Qt3DRender/qshaderimage.h>
+#include <Qt3DRender/private/qshaderimage_p.h>
+#include <Qt3DRender/private/shaderimage_p.h>
+#include <Qt3DCore/qpropertyupdatedchange.h>
+#include "qbackendnodetester.h"
+#include "testrenderer.h"
+
+class tst_ShaderImage : public Qt3DCore::QBackendNodeTester
+{
+    Q_OBJECT
+
+private Q_SLOTS:
+
+    void checkInitialState()
+    {
+        // GIVEN
+        Qt3DRender::Render::ShaderImage backendShaderImage;
+
+        // THEN
+        QCOMPARE(backendShaderImage.isEnabled(), false);
+        QVERIFY(backendShaderImage.peerId().isNull());
+        QCOMPARE(backendShaderImage.textureId(), Qt3DCore::QNodeId());
+        QCOMPARE(backendShaderImage.mipLevel(), int(0));
+        QCOMPARE(backendShaderImage.layer(), int(0));
+        QCOMPARE(backendShaderImage.layered(), false);
+        QCOMPARE(backendShaderImage.access(), Qt3DRender::QShaderImage::ReadWrite);
+        QCOMPARE(backendShaderImage.format(), Qt3DRender::QShaderImage::NoFormat);
+    }
+
+    void checkCleanupState()
+    {
+        // GIVEN
+        Qt3DRender::Render::ShaderImage backendShaderImage;
+
+        // WHEN
+        backendShaderImage.setEnabled(true);
+        backendShaderImage.setTextureId(Qt3DCore::QNodeId::createId());
+        backendShaderImage.setMipLevel(8);
+        backendShaderImage.setLayer(200);
+        backendShaderImage.setLayered(true);
+        backendShaderImage.setAccess(Qt3DRender::QShaderImage::WriteOnly);
+        backendShaderImage.setFormat(Qt3DRender::QShaderImage::R32F);
+
+        backendShaderImage.cleanup();
+
+        // THEN
+        QCOMPARE(backendShaderImage.isEnabled(), false);
+        QCOMPARE(backendShaderImage.textureId(), Qt3DCore::QNodeId());
+        QCOMPARE(backendShaderImage.mipLevel(), int(0));
+        QCOMPARE(backendShaderImage.layer(), int(0));
+        QCOMPARE(backendShaderImage.layered(), false);
+        QCOMPARE(backendShaderImage.access(), Qt3DRender::QShaderImage::ReadWrite);
+        QCOMPARE(backendShaderImage.format(), Qt3DRender::QShaderImage::NoFormat);
+
+    }
+
+    void checkInitializeFromPeer()
+    {
+        // GIVEN
+        Qt3DRender::QShaderImage shaderImage;
+
+        {
+            // WHEN
+            Qt3DRender::Render::ShaderImage backendShaderImage;
+            simulateInitialization(&shaderImage, &backendShaderImage);
+
+            // THEN
+            QCOMPARE(backendShaderImage.isEnabled(), true);
+            QCOMPARE(backendShaderImage.peerId(), shaderImage.id());
+            QCOMPARE(backendShaderImage.textureId(), Qt3DCore::QNodeId());
+            QCOMPARE(backendShaderImage.mipLevel(), 0);
+            QCOMPARE(backendShaderImage.layer(), 0);
+            QCOMPARE(backendShaderImage.layered(), false);
+            QCOMPARE(backendShaderImage.access(),  Qt3DRender::QShaderImage::ReadWrite);
+            QCOMPARE(backendShaderImage.format(),  Qt3DRender::QShaderImage::Automatic);
+        }
+        {
+            // WHEN
+            Qt3DRender::Render::ShaderImage backendShaderImage;
+            shaderImage.setEnabled(false);
+            simulateInitialization(&shaderImage, &backendShaderImage);
+
+            // THEN
+            QCOMPARE(backendShaderImage.peerId(), shaderImage.id());
+            QCOMPARE(backendShaderImage.isEnabled(), false);
+        }
+    }
+
+    void checkSceneChangeEvents()
+    {
+        // GIVEN
+        Qt3DRender::Render::ShaderImage backendShaderImage;
+        TestRenderer renderer;
+        backendShaderImage.setRenderer(&renderer);
+
+        {
+             // WHEN
+             const bool newValue = false;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("enabled");
+             change->setValue(newValue);
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.isEnabled(), newValue);
+        }
+        {
+             // WHEN
+             const Qt3DCore::QNodeId newValue = Qt3DCore::QNodeId::createId();
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("texture");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.textureId(), newValue);
+        }
+        {
+             // WHEN
+             const int newValue = 883;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("mipLevel");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.mipLevel(), newValue);
+        }
+        {
+             // WHEN
+             const int newValue = 1584;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("layer");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.layer(), newValue);
+        }
+        {
+             // WHEN
+             const bool newValue = true;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("layered");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.layered(), newValue);
+        }
+        {
+             // WHEN
+             const  Qt3DRender::QShaderImage::Access newValue = Qt3DRender::QShaderImage::WriteOnly;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("access");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.access(), newValue);
+        }
+        {
+             // WHEN
+             const  Qt3DRender::QShaderImage::ImageFormat newValue =  Qt3DRender::QShaderImage::RG16F;
+             const auto change = Qt3DCore::QPropertyUpdatedChangePtr::create(Qt3DCore::QNodeId());
+             change->setPropertyName("format");
+             change->setValue(QVariant::fromValue(newValue));
+             backendShaderImage.sceneChangeEvent(change);
+
+             // THEN
+            QCOMPARE(backendShaderImage.format(), newValue);
+        }
+    }
+
+};
+
+QTEST_MAIN(tst_ShaderImage)
+
+#include "tst_shaderimage.moc"