Revision control
++ // Copyright (C) 2008-2012 NVIDIA Corporation.
++ // Copyright (C) 2019 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++
++ #include <QtQuick3DRuntimeRender/private/qssgrenderimage_p.h>
++ #include <QtQuick/QSGTexture>
++
++ QT_BEGIN_NAMESPACE
++
++ QSSGRenderImage::QSSGRenderImage(QSSGRenderGraphObject::Type type)
++ : QSSGRenderGraphObject(type, FlagT(QSSGRenderGraphObject::Flags::HasGraphicsResources))
++ {
++ m_flags.setFlag(Flag::Dirty);
++ m_flags.setFlag(Flag::TransformDirty);
++ }
++
++ QSSGRenderImage::~QSSGRenderImage() = default;
++
++ bool QSSGRenderImage::clearDirty()
++ {
++ const bool wasDirty = m_flags.testFlag(Flag::Dirty);
++ m_flags.setFlag(Flag::Dirty, false);
++ if (m_flags.testFlag(Flag::TransformDirty)) {
++ calculateTextureTransform();
++ return true;
++ }
++ return wasDirty;
++ }
++
++ void QSSGRenderImage::calculateTextureTransform()
++ {
++ m_flags.setFlag(Flag::TransformDirty, false);
++
++ m_textureTransform = QMatrix4x4();
++ if (m_flipU) {
++ m_textureTransform *= QMatrix4x4(-1.f, 0.f, 0.f, 1.f,
++ 0.f, 1.f, 0.f, 0.f,
++ 0.f, 0.f, 1.f, 0.f,
++ 0.f, 0.f, 0.f, 1.f);
++ }
++ if (m_flipV) {
++ m_textureTransform *= QMatrix4x4(1.f, 0.f, 0.f, 0.f,
++ 0.f, -1.f, 0.f, 1.f,
++ 0.f, 0.f, 1.f, 0.f,
++ 0.f, 0.f, 0.f, 1.f);
++ }
++
++ QMatrix4x4 pivot;
++ QMatrix4x4 pivot_r;
++ QMatrix4x4 translation;
++ QMatrix4x4 rotation;
++ QMatrix4x4 scale;
++
++ pivot.translate(m_pivot.x(), m_pivot.y());
++ pivot_r.translate(-m_pivot.x(), -m_pivot.y());
++ translation.translate(m_position.x(), m_position.y());
++ scale.scale(m_scale.x(), m_scale.y());
++ rotation.rotate(m_rotation, QVector3D(0, 0, 1));
++
++ m_textureTransform *= translation;
++ m_textureTransform *= pivot;
++ m_textureTransform *= rotation;
++ m_textureTransform *= scale;
++ m_textureTransform *= pivot_r;
++ }
++
++ bool QSSGRenderImage::isImageTransformIdentity() const
++ {
++ if (m_mappingMode != MappingModes::Normal)
++ return false;
++ return m_textureTransform.isIdentity();
++ }
++
++ QT_END_NAMESPACE