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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QSSGRENDERTEXTUREDATA_H
#define QSSGRENDERTEXTUREDATA_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick3DRuntimeRender/private/qssgrendergraphobject_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderimagetexture_p.h>
#include <QtQuick3DRuntimeRender/private/qssgrenderbuffermanager_p.h>
#include <QtQuick3DUtils/private/qssgrenderbasetypes_p.h>
#include <QtCore/qsize.h>
#include <QtCore/qbytearray.h>
QT_BEGIN_NAMESPACE
class Q_QUICK3DRUNTIMERENDER_EXPORT QSSGRenderTextureData : public QSSGRenderGraphObject
{
public:
explicit QSSGRenderTextureData();
virtual ~QSSGRenderTextureData();
const QByteArray &textureData() const;
void setTextureData(const QByteArray &data);
QSize size() const { return m_size; }
void setSize(const QSize &size);
int depth() const { return m_depth; }
void setDepth(int depth);
QSSGRenderTextureFormat format() const { return m_format; }
void setFormat(QSSGRenderTextureFormat format);
bool hasTransparency() const { return m_hasTransparency; }
void setHasTransparency(bool hasTransparency);
// We use a version number to track changes in the texture data.
[[nodiscard]] quint32 version() const { return m_textureDataVersion; }
QString debugObjectName;
protected:
Q_DISABLE_COPY(QSSGRenderTextureData)
// it's specially used for Type::Skin
explicit QSSGRenderTextureData(QSSGRenderGraphObject::Type inType);
QByteArray m_textureData;
QSize m_size;
int m_depth = 0;
quint32 m_textureDataVersion = 0;
QSSGRenderTextureFormat m_format = QSSGRenderTextureFormat::Unknown;
bool m_hasTransparency = false;
};
// NOTE: We only hash the size, depth, format and hasTransparency here, not the actual data.
// This is because we want to be able to quickly check if a texture has changed, without needing
// to inspect the data content. If only the version changes we'll try to recycle the existing
// texture resource, if the size, depth, format or hasTransparency changes we'll need to create a
// new texture resource (See: QSSGBufferManager::loadTextureData).
inline size_t qHash(const QSSGRenderTextureData &data, size_t seed) noexcept
{
const auto format = data.format();
return qHashMulti(seed, data.size(), data.depth(), format.format, data.hasTransparency());
}
QT_END_NAMESPACE
#endif // QSSGRENDERTEXTUREDATA_H
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