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/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part 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 "qsgvideotexture_p.h"
#include <QtQuick/qsgtexturematerial.h>
#include <QtQuick/qsgmaterial.h>
QT_BEGIN_NAMESPACE
class QSGVideoTexturePrivate
{
Q_DECLARE_PUBLIC(QSGVideoTexture)
public:
void updateRhiTexture(QRhi *rhi, QRhiResourceUpdateBatch *resourceUpdates);
private:
QSGVideoTexture *q_ptr = nullptr;
QRhiTexture::Format m_format;
QSize m_size;
const uchar *m_data = nullptr;
qsizetype m_bytes = 0;
QScopedPointer<QRhiTexture> m_texture;
quint64 m_nativeObject = 0;
};
QSGVideoTexture::QSGVideoTexture()
: d_ptr(new QSGVideoTexturePrivate)
{
d_ptr->q_ptr = this;
}
QSGVideoTexture::~QSGVideoTexture()
{
}
qint64 QSGVideoTexture::comparisonKey() const
{
Q_D(const QSGVideoTexture);
if (d->m_nativeObject)
return d->m_nativeObject;
if (d->m_texture)
return qint64(qintptr(d->m_texture.data()));
// two textures (and so materials) with not-yet-created texture underneath are never equal
return qint64(qintptr(this));
}
int QSGVideoTexture::textureId() const // legacy
{
return 0;
}
QRhiTexture *QSGVideoTexture::rhiTexture() const
{
return d_func()->m_texture.data();
}
QSize QSGVideoTexture::textureSize() const
{
return d_func()->m_size;
}
bool QSGVideoTexture::hasAlphaChannel() const
{
Q_D(const QSGVideoTexture);
return d->m_format == QRhiTexture::RGBA8 || d->m_format == QRhiTexture::BGRA8;
}
bool QSGVideoTexture::hasMipmaps() const
{
return mipmapFiltering() != QSGTexture::None;
}
void QSGVideoTexture::bind()
{
}
void QSGVideoTexture::setData(QRhiTexture::Format f, const QSize &s, const uchar *data, qsizetype bytes)
{
Q_D(QSGVideoTexture);
d->m_size = s;
d->m_format = f;
d->m_data = data;
d->m_bytes = bytes;
}
void QSGVideoTexture::setNativeObject(quint64 obj, const QSize &s)
{
Q_D(QSGVideoTexture);
setData(QRhiTexture::RGBA8, s, nullptr, 0);
if (d->m_nativeObject != obj) {
d->m_nativeObject = obj;
d->m_texture.reset();
}
}
void QSGVideoTexturePrivate::updateRhiTexture(QRhi *rhi, QRhiResourceUpdateBatch *resourceUpdates)
{
Q_Q(QSGVideoTexture);
bool needsRebuild = m_texture && m_texture->pixelSize() != m_size;
if (!m_texture) {
QRhiTexture::Flags flags;
if (q->hasMipmaps())
flags |= QRhiTexture::MipMapped | QRhiTexture::UsedWithGenerateMips;
m_texture.reset(rhi->newTexture(m_format, m_size, 1, flags));
needsRebuild = true;
}
if (needsRebuild) {
m_texture->setPixelSize(m_size);
bool created = m_nativeObject
? m_texture->buildFrom({m_nativeObject, 0})
: m_texture->build();
if (!created) {
qWarning("Failed to build texture (size %dx%d)",
m_size.width(), m_size.height());
return;
}
}
if (m_bytes) {
QRhiTextureSubresourceUploadDescription subresDesc(m_data, m_bytes);
subresDesc.setSourceSize(m_size);
subresDesc.setDestinationTopLeft(QPoint(0, 0));
QRhiTextureUploadEntry entry(0, 0, subresDesc);
QRhiTextureUploadDescription desc({ entry });
resourceUpdates->uploadTexture(m_texture.data(), desc);
}
if (q->hasMipmaps())
resourceUpdates->generateMips(m_texture.data());
}
void QSGVideoTexture::commitTextureOperations(QRhi *rhi, QRhiResourceUpdateBatch *resourceUpdates)
{
d_func()->updateRhiTexture(rhi, resourceUpdates);
}
QT_END_NAMESPACE
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