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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef Q3DSIMAGEMANAGERER_P_H
#define Q3DSIMAGEMANAGERER_P_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 "q3dsruntimeglobal_p.h"
#include <QHash>
#include <QUrl>
#include <QImage>
#include <QFuture>
#include <QMutex>
#include <QThreadPool>
#include <Qt3DRender/QAbstractTexture>
#include <Qt3DRender/QTextureImageData>
#include <Qt3DRender/QParameter>
QT_BEGIN_NAMESPACE
class Q3DSProfiler;
namespace Qt3DCore {
class QEntity;
}
class ReloadableTexture
{
public:
ReloadableTexture(Qt3DCore::QEntity *parent, bool generateIBL, const QByteArray &id,
const QString &profileInfo, Q3DSProfiler *profiler)
: m_parent(parent), m_id(id), m_profileInfo(profileInfo), m_generateIBL(generateIBL),
m_profiler(profiler)
{
}
void setSource(const QUrl &source);
template <typename Caller, typename... Params>
void onLoad(Caller caller, Params... params)
{
m_loadFunc = [this, caller, params...]() {
caller(m_texture, params...);
};
// onLoad call might provide new parameters when called after loading so call it now
if (m_loaded)
m_loadFunc();
else
triggerLoading();
}
template <typename Caller, typename... Params>
void onUnload(Caller caller, Params... params)
{
m_unloadFunc = [this, caller, params...]() {
caller(m_texture, params...);
};
triggerLoading();
}
void reload();
void unload();
QUrl source() const
{
return m_source;
}
void loaded(Qt3DRender::QAbstractTexture *texture);
bool wasLoaded() const
{
return m_loaded;
}
Qt3DRender::QAbstractTexture *texture()
{
return m_texture;
}
QString info()
{
return m_profileInfo;
}
Q3DSProfiler *profiler()
{
return m_profiler;
}
private:
void triggerLoading();
Qt3DCore::QEntity *m_parent = nullptr;
Qt3DRender::QAbstractTexture *m_texture = nullptr;
QByteArray m_id;
QString m_profileInfo;
QUrl m_source;
bool m_generateIBL = false;
bool m_loaded = false;
Q3DSProfiler *m_profiler = nullptr;
std::function<void()> m_loadFunc = nullptr;
std::function<void()> m_unloadFunc = nullptr;
};
typedef QSharedPointer<ReloadableTexture> ReloadableTexturePtr;
class Q3DSImageManager
{
public:
enum ImageFlag {
GenerateMipMapsForIBL = 0x01
};
Q_DECLARE_FLAGS(ImageFlags, ImageFlag)
Q3DSImageManager();
static Q3DSImageManager &instance();
void invalidate();
Qt3DRender::QAbstractTexture *newTextureForImage(Qt3DCore::QEntity *parent,
ImageFlags flags,
const QByteArray &id,
Q3DSProfiler *profiler = nullptr,
const QString &profilerInfo = {});
ReloadableTexturePtr newReloadableTextureForImage(Qt3DCore::QEntity *parent,
ImageFlags flags,
const QByteArray &id,
Q3DSProfiler *profiler = nullptr,
const char *profName = nullptr, ...);
void setSource(Qt3DRender::QAbstractTexture *tex, const QImage &image);
QSize size(Qt3DRender::QAbstractTexture *tex) const;
Qt3DRender::QAbstractTexture::TextureFormat format(Qt3DRender::QAbstractTexture *tex) const;
bool wasCached(Qt3DRender::QAbstractTexture *tex) const;
qint64 ioTimeMsecs() const { return m_ioTime; }
qint64 iblTimeMsecs() const { return m_iblTime; }
void finishAsyncLoad(bool wait = true);
void beginImageLoad(const QSet<QUrl> &imageSet);
void beginUnload(const QSet<QUrl> &imageSet);
bool inResourceSet(const QUrl &url) const;
private:
void loadImageData(const QUrl &source, bool async = true);
void setSource(Qt3DRender::QAbstractTexture *tex, const QUrl &source);
void textureLoaded(Qt3DRender::QAbstractTexture *tex, const QUrl &source);
QVector<Qt3DRender::QTextureImageDataPtr> load(const QUrl &source);
int blockSizeForFormat(QOpenGLTexture::TextureFormat format);
QByteArray generateIblMip(int w, int h, int prevW, int prevH,
QOpenGLTexture::TextureFormat format,
int blockSize, const QByteArray &prevLevelData);
QVector<Qt3DRender::QTextureImageDataPtr> generateIblForImageData(
QVector<Qt3DRender::QTextureImageDataPtr> result);
struct TextureInfo {
ImageFlags flags;
QUrl source;
QSize size;
Qt3DRender::QAbstractTexture::TextureFormat format = Qt3DRender::QAbstractTexture::NoFormat;
bool wasCached = false;
};
struct LoadImageDataAsync
{
QFuture<void> future;
QString source;
bool preferKtx = false;
bool done = false;
};
QVector<ReloadableTexturePtr> m_reloadableTextures;
QSet<QUrl> m_resourceSet;
QHash<Qt3DRender::QAbstractTexture *, TextureInfo> m_metadata;
QHash<QString, QVector<Qt3DRender::QTextureImageDataPtr> > m_cache;
QHash<QString, LoadImageDataAsync> m_loadImageDataAsync;
QHash<QString, QVector<Qt3DRender::QAbstractTexture *> *> m_pendingSetSource;
QThreadPool m_threadPool;
static QMutex s_loadMutex;
qint64 m_ioTime = 0;
qint64 m_iblTime = 0;
QMutex m_finishAsyncLoadLock;
friend ReloadableTexture;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(Q3DSImageManager::ImageFlags)
QT_END_NAMESPACE
#endif // Q3DSIMAGEMANAGERER_P_H
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