| 1 | // Copyright (C) 2018 The Qt Company Ltd. |
|---|---|
| 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 QSGCOMPRESSEDATLASTEXTURE_P_H |
| 5 | #define QSGCOMPRESSEDATLASTEXTURE_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 purely as an |
| 12 | // implementation detail. 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 <QtCore/QSize> |
| 19 | |
| 20 | #include <QtQuick/QSGTexture> |
| 21 | #include <QtQuick/private/qsgareaallocator_p.h> |
| 22 | #include <QtQuick/private/qsgrhiatlastexture_p.h> |
| 23 | |
| 24 | QT_BEGIN_NAMESPACE |
| 25 | |
| 26 | class QSGCompressedTextureFactory; |
| 27 | |
| 28 | namespace QSGCompressedAtlasTexture { |
| 29 | |
| 30 | class Texture; |
| 31 | |
| 32 | class Atlas : public QSGRhiAtlasTexture::AtlasBase |
| 33 | { |
| 34 | public: |
| 35 | Atlas(QSGDefaultRenderContext *rc, const QSize &size, uint format); |
| 36 | ~Atlas(); |
| 37 | |
| 38 | bool generateTexture() override; |
| 39 | void enqueueTextureUpload(QSGRhiAtlasTexture::TextureBase *t, |
| 40 | QRhiResourceUpdateBatch *rcub) override; |
| 41 | |
| 42 | Texture *create(QByteArrayView data, const QSize &size); |
| 43 | |
| 44 | uint format() const { return m_format; } |
| 45 | |
| 46 | private: |
| 47 | uint m_format; |
| 48 | }; |
| 49 | |
| 50 | class Texture : public QSGRhiAtlasTexture::TextureBase |
| 51 | { |
| 52 | Q_OBJECT |
| 53 | public: |
| 54 | Texture(Atlas *atlas, const QRect &textureRect, QByteArrayView data, const QSize &size); |
| 55 | ~Texture(); |
| 56 | |
| 57 | QSize textureSize() const override { return m_size; } |
| 58 | bool hasAlphaChannel() const override; |
| 59 | bool hasMipmaps() const override { return false; } |
| 60 | |
| 61 | QRectF normalizedTextureSubRect() const override { return m_texture_coords_rect; } |
| 62 | |
| 63 | QSGTexture *removedFromAtlas(QRhiResourceUpdateBatch *) const override; |
| 64 | |
| 65 | const QByteArray &data() const { return m_data; } |
| 66 | int sizeInBytes() const { return m_data.size(); } |
| 67 | |
| 68 | private: |
| 69 | QRectF m_texture_coords_rect; |
| 70 | mutable QSGTexture *m_nonatlas_texture; |
| 71 | QByteArray m_data; |
| 72 | QSize m_size; |
| 73 | }; |
| 74 | |
| 75 | } |
| 76 | |
| 77 | QT_END_NAMESPACE |
| 78 | |
| 79 | #endif |
| 80 |