| 1 | // Copyright (C) 2015 Paul Lemire paul.lemire350@gmail.com |
|---|---|
| 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 QT3DCORE_BUFFERUTILS_P_H |
| 5 | #define QT3DCORE_BUFFERUTILS_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 <Qt3DCore/QAttribute> |
| 19 | #include <QByteArray> |
| 20 | #include <private/qglobal_p.h> |
| 21 | |
| 22 | QT_BEGIN_NAMESPACE |
| 23 | |
| 24 | |
| 25 | namespace Qt3DCore { |
| 26 | |
| 27 | class QGeometryView; |
| 28 | class QBuffer; |
| 29 | |
| 30 | struct BufferInfo |
| 31 | { |
| 32 | BufferInfo() |
| 33 | : type(Qt3DCore::QAttribute::VertexBaseType::Float) |
| 34 | , dataSize(0) |
| 35 | , count(0) |
| 36 | , byteStride(0) |
| 37 | , byteOffset(0) |
| 38 | , restartEnabled(false) |
| 39 | , restartIndexValue(-1) |
| 40 | {} |
| 41 | |
| 42 | QByteArray data; |
| 43 | Qt3DCore::QAttribute::VertexBaseType type; |
| 44 | uint dataSize; |
| 45 | uint count; |
| 46 | uint byteStride; |
| 47 | uint byteOffset; |
| 48 | bool restartEnabled; |
| 49 | int restartIndexValue; |
| 50 | }; |
| 51 | |
| 52 | |
| 53 | namespace BufferTypeInfo { |
| 54 | |
| 55 | template <Qt3DCore::QAttribute::VertexBaseType> struct EnumToType; |
| 56 | template <> struct EnumToType<Qt3DCore::QAttribute::Byte> { typedef const char type; }; |
| 57 | template <> struct EnumToType<Qt3DCore::QAttribute::UnsignedByte> { typedef const uchar type; }; |
| 58 | template <> struct EnumToType<Qt3DCore::QAttribute::Short> { typedef const short type; }; |
| 59 | template <> struct EnumToType<Qt3DCore::QAttribute::UnsignedShort> { typedef const ushort type; }; |
| 60 | template <> struct EnumToType<Qt3DCore::QAttribute::Int> { typedef const int type; }; |
| 61 | template <> struct EnumToType<Qt3DCore::QAttribute::UnsignedInt> { typedef const uint type; }; |
| 62 | template <> struct EnumToType<Qt3DCore::QAttribute::Float> { typedef const float type; }; |
| 63 | template <> struct EnumToType<Qt3DCore::QAttribute::Double> { typedef const double type; }; |
| 64 | |
| 65 | template<Qt3DCore::QAttribute::VertexBaseType v> |
| 66 | typename EnumToType<v>::type *castToType(const QByteArray &u, uint byteOffset) |
| 67 | { |
| 68 | return reinterpret_cast< typename EnumToType<v>::type *>(u.constData() + byteOffset); |
| 69 | } |
| 70 | |
| 71 | } // namespace BufferTypeInfo |
| 72 | |
| 73 | } // namespace Qt3DCore |
| 74 | |
| 75 | QT_END_NAMESPACE |
| 76 | |
| 77 | |
| 78 | #endif // QT3DCORE_BUFFERUTILS_P_H |
| 79 |