tst_blitframebuffer.cpp

// Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).

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

#include <QtTest/QTest>

#include <Qt3DRender/qblitframebuffer.h>

#include <Qt3DRender/private/qblitframebuffer_p.h>

#include <Qt3DRender/private/blitframebuffer_p.h>

#include "qbackendnodetester.h"

#include "testrenderer.h"

class tst_BlitFramebuffer : public Qt3DCore::QBackendNodeTester

    Q_OBJECT

private Q_SLOTS:

    void checkInitialState()

        // GIVEN

        Qt3DRender::Render::BlitFramebuffer backendBlitFramebuffer;

        // THEN

        QCOMPARE(backendBlitFramebuffer.nodeType(), Qt3DRender::Render::FrameGraphNode::BlitFramebuffer);

        QCOMPARE(backendBlitFramebuffer.isEnabled(), false);

        QVERIFY(backendBlitFramebuffer.peerId().isNull());

        QVERIFY(backendBlitFramebuffer.sourceRenderTargetId().isNull());

        QVERIFY(backendBlitFramebuffer.destinationRenderTargetId().isNull());

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

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

        QCOMPARE(backendBlitFramebuffer.sourceAttachmentPoint(), Qt3DRender::QRenderTargetOutput::Color0);

        QCOMPARE(backendBlitFramebuffer.destinationAttachmentPoint(), Qt3DRender::QRenderTargetOutput::Color0);

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

    void checkInitializeFromPeer()

        // GIVEN

        TestRenderer renderer;

        Qt3DRender::QRenderTarget *sourceTarget = new Qt3DRender::QRenderTarget;

        Qt3DRender::QRenderTarget *destinationTarget = new Qt3DRender::QRenderTarget;

        Qt3DRender::QBlitFramebuffer blitFramebuffer;

        blitFramebuffer.setSource(sourceTarget);

        blitFramebuffer.setDestination(destinationTarget);

        blitFramebuffer.setSourceRect(QRect(0,0,1,1));

        blitFramebuffer.setDestinationRect(QRect(0,0,1,1));

        blitFramebuffer.setSourceAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        blitFramebuffer.setDestinationAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color1);

        blitFramebuffer.setInterpolationMethod(Qt3DRender::QBlitFramebuffer::Nearest);

            // WHEN

            Qt3DRender::Render::BlitFramebuffer backendBlitFramebuffer;

            backendBlitFramebuffer.setRenderer(&renderer);

            simulateInitializationSync(&blitFramebuffer, &backendBlitFramebuffer);

            // THEN

            QCOMPARE(backendBlitFramebuffer.isEnabled(), true);

            QCOMPARE(backendBlitFramebuffer.peerId(), blitFramebuffer.id());

            QCOMPARE(backendBlitFramebuffer.sourceRenderTargetId(), sourceTarget->id());

            QCOMPARE(backendBlitFramebuffer.destinationRenderTargetId(), destinationTarget->id());

            QCOMPARE(backendBlitFramebuffer.sourceRect(), QRect(0,0,1,1));

            QCOMPARE(backendBlitFramebuffer.destinationRect(), QRect(0,0,1,1));

            QCOMPARE(backendBlitFramebuffer.sourceAttachmentPoint(), Qt3DRender::QRenderTargetOutput::Color1);

            QCOMPARE(backendBlitFramebuffer.destinationAttachmentPoint(),  Qt3DRender::QRenderTargetOutput::Color1);

            QCOMPARE(backendBlitFramebuffer.interpolationMethod(), Qt3DRender::QBlitFramebuffer::Nearest);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

        renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            Qt3DRender::Render::BlitFramebuffer backendBlitFramebuffer;

            backendBlitFramebuffer.setRenderer(&renderer);

            blitFramebuffer.setEnabled(false);

            simulateInitializationSync(&blitFramebuffer, &backendBlitFramebuffer);

            // THEN

            QCOMPARE(backendBlitFramebuffer.peerId(), blitFramebuffer.id());

            QCOMPARE(backendBlitFramebuffer.isEnabled(), false);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

    void checkSceneChangeEvents()

        // GIVEN

        Qt3DRender::Render::BlitFramebuffer backendBlitFramebuffer;

        Qt3DRender::QBlitFramebuffer blitFramebuffer;

        TestRenderer renderer;

        backendBlitFramebuffer.setRenderer(&renderer);

        simulateInitializationSync(&blitFramebuffer, &backendBlitFramebuffer);

            // WHEN

            const bool newValue = false;

            blitFramebuffer.setEnabled(newValue);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.isEnabled(), newValue);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            Qt3DRender::QRenderTarget sourceRenderTarget;

            blitFramebuffer.setSource(&sourceRenderTarget);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.sourceRenderTargetId(), sourceRenderTarget.id());

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            Qt3DRender::QRenderTarget destinationRenderTarget;

            blitFramebuffer.setDestination(&destinationRenderTarget);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.destinationRenderTargetId(), destinationRenderTarget.id());

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            const auto newValue = QRect(0,0,1,1);

            blitFramebuffer.setSourceRect(newValue);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.sourceRect(), newValue);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            const auto newValue = QRect(0,0,1,1);

            blitFramebuffer.setDestinationRect(newValue);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.destinationRect(), newValue);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            const auto newValue = Qt3DRender::QRenderTargetOutput::Color1;

            blitFramebuffer.setSourceAttachmentPoint(newValue);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.sourceAttachmentPoint(), newValue);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

            // WHEN

            const auto newValue = Qt3DRender::QRenderTargetOutput::Color1;

            blitFramebuffer.setDestinationAttachmentPoint(newValue);

            backendBlitFramebuffer.syncFromFrontEnd(&blitFramebuffer, false);

            // THEN

            QCOMPARE(backendBlitFramebuffer.destinationAttachmentPoint(), newValue);

            QVERIFY(renderer.dirtyBits() & Qt3DRender::Render::AbstractRenderer::FrameGraphDirty);

            renderer.clearDirtyBits(Qt3DRender::Render::AbstractRenderer::AllDirty);

};

QTEST_MAIN(tst_BlitFramebuffer)

#include "tst_blitframebuffer.moc"