tst_qblitframebuffer.cpp

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// Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#include <QtTest/QTest>

#include <Qt3DCore/private/qnode_p.h>

#include <Qt3DCore/private/qscene_p.h>

#include <Qt3DRender/QBlitFramebuffer>

#include <Qt3DRender/private/qblitframebuffer_p.h>

#include "testarbiter.h"

class tst_QBlitFrameBuffer: public QObject

    Q_OBJECT

public:

    tst_QBlitFrameBuffer() : QObject()

        qRegisterMetaType<Qt3DRender::QRenderTarget*>();

private Q_SLOTS:

    void checkCreationData_data()

        QTest::addColumn<Qt3DRender::QBlitFramebuffer *>("blitFramebuffer");

        Qt3DRender::QBlitFramebuffer *defaultConstructed = new Qt3DRender::QBlitFramebuffer();

        Qt3DRender::QRenderTarget *sourceRenderTarget = new Qt3DRender::QRenderTarget();

        Qt3DRender::QRenderTarget *destinationRenderTarget = new Qt3DRender::QRenderTarget();

        defaultConstructed->setSource(sourceRenderTarget);

        defaultConstructed->setDestination(destinationRenderTarget);

        QTest::newRow("defaultConstructed") << defaultConstructed;

    void checkInitialState()

        // GIVEN

        Qt3DRender::QBlitFramebuffer blitFramebuffer;

        // THEN

        QCOMPARE(blitFramebuffer.source(), nullptr);

        QCOMPARE(blitFramebuffer.destination(), nullptr);

        QCOMPARE(blitFramebuffer.sourceRect(), QRect());

        QCOMPARE(blitFramebuffer.destinationRect(), QRect());

        QCOMPARE(blitFramebuffer.sourceAttachmentPoint(), Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0);

        QCOMPARE(blitFramebuffer.destinationAttachmentPoint(), Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0);

        QCOMPARE(blitFramebuffer.interpolationMethod(), Qt3DRender::QBlitFramebuffer::Linear);

    void checkPropertyUpdate()

        // GIVEN

        TestArbiter arbiter;

        QScopedPointer<Qt3DRender::QBlitFramebuffer> blitFramebuffer(new Qt3DRender::QBlitFramebuffer());

        arbiter.setArbiterOnNode(blitFramebuffer.data());

        Qt3DRender::QRenderTarget *sourceRenderTarget = new Qt3DRender::QRenderTarget;

        Qt3DRender::QRenderTarget *destinationRenderTarget = new Qt3DRender::QRenderTarget;

        // sourceRenderTarget

        // WHEN

        blitFramebuffer->setSource(sourceRenderTarget);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setSource(sourceRenderTarget);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setSource(nullptr);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // destinationRenderTarget

        // WHEN

        blitFramebuffer->setDestination(destinationRenderTarget);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setDestination(destinationRenderTarget);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setDestination(nullptr);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // sourceRect

        // WHEN

        blitFramebuffer->setSourceRect(QRect(0,0,1,1));

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setSourceRect(QRect(0,0,1,1));

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setSourceRect(QRect());

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // destinationRect

        blitFramebuffer->setDestinationRect(QRect(0,0,1,1));

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setDestinationRect(QRect(0,0,1,1));

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setDestinationRect(QRect());

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // sourceAttachmentPoint

        // WHEN

        blitFramebuffer->setSourceAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setSourceAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setSourceAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color0);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // destinationAttachmentPoint

        // WHEN

        blitFramebuffer->setDestinationAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

        // WHEN

        blitFramebuffer->setDestinationAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 0);

        // WHEN

        blitFramebuffer->setDestinationAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color0);

        // THEN

        QCOMPARE(arbiter.dirtyNodes().size(), 1);

        QCOMPARE(arbiter.dirtyNodes().front(), blitFramebuffer.data());

        arbiter.clear();

    void checkSourceDestReset()

        // GIVEN

        TestArbiter arbiter;

        QScopedPointer<Qt3DRender::QBlitFramebuffer> blitFramebuffer(new Qt3DRender::QBlitFramebuffer());

        arbiter.setArbiterOnNode(blitFramebuffer.data());

        Qt3DRender::QRenderTarget *sourceRenderTarget = new Qt3DRender::QRenderTarget; // no parent

        Qt3DRender::QRenderTarget *destinationRenderTarget = new Qt3DRender::QRenderTarget(sourceRenderTarget); // have a parent

        // WHEN

        blitFramebuffer->setSource(sourceRenderTarget);

        blitFramebuffer->setDestination(destinationRenderTarget);

        QCoreApplication::processEvents();

        // THEN

        QCOMPARE(sourceRenderTarget->parent(), blitFramebuffer.data());

        QCOMPARE(destinationRenderTarget->parent(), sourceRenderTarget); // already set parent must not change

        // WHEN

        delete sourceRenderTarget;

        // THEN

        QVERIFY(!blitFramebuffer->source());

        QVERIFY(!blitFramebuffer->destination()); // gone too since destinationRenderTarget was parented to sourceRenderTarget

};

QTEST_MAIN(tst_QBlitFrameBuffer)

#include "tst_qblitframebuffer.moc"