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/****************************************************************************
**
** Copyright (C) 2016 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 "attachmentpack_p.h"
#include <Qt3DRender/private/rendertarget_p.h>
#include <Qt3DRender/private/rendertargetselectornode_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
AttachmentPack::AttachmentPack()
{
}
AttachmentPack::AttachmentPack(const RenderTarget *target,
AttachmentManager *attachmentManager,
const QVector<QRenderTargetOutput::AttachmentPoint> &drawBuffers)
{
// Copy attachments
const auto outputIds = target->renderOutputs();
for (Qt3DCore::QNodeId outputId : outputIds) {
const RenderTargetOutput *output = attachmentManager->lookupResource(outputId);
if (output)
m_attachments.append(*output->attachment());
}
// Create actual DrawBuffers list that is used for glDrawBuffers
// If nothing is specified, use all the attachments as draw buffers
if (drawBuffers.isEmpty()) {
m_drawBuffers.reserve(m_attachments.size());
for (const Attachment &attachment : qAsConst(m_attachments))
// only consider Color Attachments
if (attachment.m_point <= QRenderTargetOutput::Color15)
m_drawBuffers.push_back((int) attachment.m_point);
} else {
m_drawBuffers.reserve(drawBuffers.size());
for (QRenderTargetOutput::AttachmentPoint drawBuffer : drawBuffers)
if (drawBuffer <= QRenderTargetOutput::Color15)
m_drawBuffers.push_back((int) drawBuffer);
}
}
// return index of given attachment within actual draw buffers list
int AttachmentPack::getDrawBufferIndex(QRenderTargetOutput::AttachmentPoint attachmentPoint) const
{
for (int i = 0; i < m_drawBuffers.size(); i++)
if (m_drawBuffers.at(i) == (int)attachmentPoint)
return i;
return -1;
}
bool operator ==(const Attachment &a, const Attachment &b)
{
return (a.m_name == b.m_name &&
a.m_mipLevel == b.m_mipLevel &&
a.m_layer == b.m_layer &&
a.m_textureUuid == b.m_textureUuid &&
a.m_point == b.m_point &&
a.m_face == b.m_face);
}
bool operator !=(const Attachment &a, const Attachment &b)
{
return !(a == b);
}
bool operator ==(const AttachmentPack &packA, const AttachmentPack &packB)
{
return (packA.attachments() == packB.attachments() &&
packA.getGlDrawBuffers() == packB.getGlDrawBuffers());
}
bool operator !=(const AttachmentPack &packA, const AttachmentPack &packB)
{
return !(packA == packB);
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
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