1// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QT3DRENDER_TEXTUREDATA_P_H
5#define QT3DRENDER_TEXTUREDATA_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists for the convenience
12// of other Qt classes. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include "qtextureimagedata.h"
19#include <Qt3DRender/private/qt3drender_global_p.h>
20#include <functional>
21
22QT_BEGIN_NAMESPACE
23
24namespace Qt3DRender {
25
26class Q_3DRENDERSHARED_PRIVATE_EXPORT QTextureImageDataPrivate
27{
28public:
29 QTextureImageDataPrivate();
30
31 void setData(const QByteArray &data, int blockSize, bool isCompressed);
32 void setData(const QByteArray &data,
33 std::function<QByteArray(QByteArray, int, int, int)> dataExtractor,
34 bool isCompressed);
35
36 bool setCompressedFile(const QString &source);
37
38 QByteArray data(int layer, int face, int mipmapLevel) const;
39
40 int m_width;
41 int m_height;
42 int m_depth;
43 int m_layers;
44 int m_faces;
45 int m_mipLevels;
46 int m_blockSize;
47 int m_alignment;
48
49 QOpenGLTexture::Target m_target;
50 QOpenGLTexture::TextureFormat m_format;
51 QOpenGLTexture::PixelFormat m_pixelFormat;
52 QOpenGLTexture::PixelType m_pixelType;
53
54 bool m_isCompressed;
55 // ### Qt 6
56 // QTextureImageData was originally written with assumptions around the internal data format
57 // matching dds layout. This is an ugly, but easy, way to add basic ktx support without any
58 // public API changes. Consider https://codereview.qt-project.org/#/c/178474/ for Qt 6.
59 bool m_isKtx;
60 QByteArray m_data;
61 std::function<QByteArray(QByteArray rawData, int layer, int face, int mipmapLevel)> m_dataExtractor;
62
63 static QTextureImageDataPrivate *get(QTextureImageData *imageData);
64
65private:
66 int ddsLayerSize() const;
67 int ddsFaceSize() const;
68 int mipmapLevelSize(int level) const;
69 QByteArray ktxData(int layer, int face, int mipmapLevel) const;
70};
71
72} // namespace Qt3DRender
73
74
75QT_END_NAMESPACE
76
77#endif // QT3DRENDER_TEXTUREDATA_P_H
78

source code of qt3d/src/render/texture/qtextureimagedata_p.h