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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DRENDER_RENDER_TEXTURE_H
#define QT3DRENDER_RENDER_TEXTURE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <Qt3DRender/private/backendnode_p.h>
#include <Qt3DRender/private/handle_types_p.h>
#include <Qt3DRender/qtexture.h>
#include <Qt3DRender/qtexturedata.h>
#include <Qt3DRender/qtexturegenerator.h>
#include <QOpenGLContext>
#include <QMutex>
QT_BEGIN_NAMESPACE
class QOpenGLTexture;
namespace Qt3DRender {
class QAbstractTexture;
namespace Render {
class TextureManager;
class TextureImageManager;
/**
* General, constant properties of a texture
*/
struct TextureProperties
{
int width = 1;
int height = 1;
int depth = 1;
int layers = 1;
int mipLevels = 1;
int samples = 1;
QAbstractTexture::Target target = QAbstractTexture::Target2D;
QAbstractTexture::TextureFormat format = QAbstractTexture::RGBA8_UNorm;
bool generateMipMaps = false;
QAbstractTexture::Status status = QAbstractTexture::None;
bool operator==(const TextureProperties &o) const {
return (width == o.width) && (height == o.height) && (depth == o.depth)
&& (layers == o.layers) && (mipLevels == o.mipLevels) && (target == o.target)
&& (format == o.format) && (generateMipMaps == o.generateMipMaps)
&& (samples == o.samples) && (status == o.status);
}
inline bool operator!=(const TextureProperties &o) const { return !(*this == o); }
};
/**
* Texture parameters that are independent of texture data and that may
* change without the re-uploading the texture
*/
struct TextureParameters
{
QAbstractTexture::Filter magnificationFilter = QAbstractTexture::Nearest;
QAbstractTexture::Filter minificationFilter = QAbstractTexture::Nearest;
QTextureWrapMode::WrapMode wrapModeX = QTextureWrapMode::ClampToEdge;
QTextureWrapMode::WrapMode wrapModeY = QTextureWrapMode::ClampToEdge;
QTextureWrapMode::WrapMode wrapModeZ = QTextureWrapMode::ClampToEdge;
float maximumAnisotropy = 1.0f;
QAbstractTexture::ComparisonFunction comparisonFunction = QAbstractTexture::CompareLessEqual;
QAbstractTexture::ComparisonMode comparisonMode = QAbstractTexture::CompareNone;
bool operator==(const TextureParameters &o) const {
return (magnificationFilter == o.magnificationFilter) && (minificationFilter == o.minificationFilter)
&& (wrapModeX == o.wrapModeX) && (wrapModeY == o.wrapModeY) && (wrapModeZ == o.wrapModeZ)
&& (maximumAnisotropy == o.maximumAnisotropy)
&& (comparisonFunction == o.comparisonFunction) && (comparisonMode == o.comparisonMode);
}
inline bool operator!=(const TextureParameters &o) const { return !(*this == o); }
};
/**
* Backend object for QAbstractTexture. Just holds texture properties and parameters.
* Will query the TextureImplManager for an instance of TextureImpl that matches it's
* properties.
*/
class Q_AUTOTEST_EXPORT Texture : public BackendNode
{
public:
Texture();
~Texture();
enum DirtyFlag {
NotDirty = 0,
DirtyProperties = 0x1,
DirtyParameters = 0x2,
DirtyImageGenerators = 0x4,
DirtyDataGenerator = 0x8
};
Q_DECLARE_FLAGS(DirtyFlags, DirtyFlag)
void addDirtyFlag(DirtyFlags flags);
DirtyFlags dirtyFlags();
void unsetDirty();
void addTextureImage(Qt3DCore::QNodeId id);
void removeTextureImage(Qt3DCore::QNodeId id);
void cleanup();
void sceneChangeEvent(const Qt3DCore::QSceneChangePtr &e) override;
inline const TextureProperties& properties() const { return m_properties; }
inline const TextureParameters& parameters() const { return m_parameters; }
inline const Qt3DCore::QNodeIdVector textureImageIds() const { return m_textureImageIds; }
inline const QTextureGeneratorPtr& dataGenerator() const { return m_dataFunctor; }
void setDataGenerator(const QTextureGeneratorPtr &generator);
void updatePropertiesAndNotify(const TextureProperties &propreties);
bool isValid(TextureImageManager *manager) const;
private:
void initializeFromPeer(const Qt3DCore::QNodeCreatedChangeBasePtr &change) final;
DirtyFlags m_dirty;
TextureProperties m_properties;
TextureParameters m_parameters;
QTextureGeneratorPtr m_dataFunctor;
Qt3DCore::QNodeIdVector m_textureImageIds;
QMutex m_flagsMutex;
};
class Q_AUTOTEST_EXPORT TextureFunctor : public Qt3DCore::QBackendNodeMapper
{
public:
explicit TextureFunctor(AbstractRenderer *renderer,
TextureManager *textureNodeManager);
Qt3DCore::QBackendNode *create(const Qt3DCore::QNodeCreatedChangeBasePtr &change) const final;
Qt3DCore::QBackendNode *get(Qt3DCore::QNodeId id) const final;
void destroy(Qt3DCore::QNodeId id) const final;
private:
AbstractRenderer *m_renderer;
TextureManager *m_textureNodeManager;
};
#ifndef QT_NO_DEBUG_STREAM
inline QDebug operator<<(QDebug dbg, const Texture &texture)
{
QDebugStateSaver saver(dbg);
dbg << "QNodeId =" << texture.peerId() << "imageCount =" << texture.textureImageIds().size() << endl;
return dbg;
}
#endif
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
Q_DECLARE_METATYPE(Qt3DRender::Render::Texture*) // LCOV_EXCL_LINE
#endif // QT3DRENDER_RENDER_TEXTURE_H
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