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39 | |
40 | #ifndef QSGCOMPRESSEDATLASTEXTURE_P_H |
41 | #define QSGCOMPRESSEDATLASTEXTURE_P_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is not part of the Qt API. It exists purely as an |
48 | // implementation detail. This header file may change from version to |
49 | // version without notice, or even be removed. |
50 | // |
51 | // We mean it. |
52 | // |
53 | |
54 | #include <QtCore/QSize> |
55 | |
56 | #include <QtGui/qopengl.h> |
57 | |
58 | #include <QtQuick/QSGTexture> |
59 | #include <QtQuick/private/qsgareaallocator_p.h> |
60 | #include <QtQuick/private/qsgopenglatlastexture_p.h> |
61 | |
62 | QT_BEGIN_NAMESPACE |
63 | |
64 | class QSGCompressedTextureFactory; |
65 | |
66 | namespace QSGCompressedAtlasTexture { |
67 | |
68 | class Texture; |
69 | |
70 | class Atlas : public QSGOpenGLAtlasTexture::AtlasBase |
71 | { |
72 | public: |
73 | Atlas(const QSize &size, uint format); |
74 | ~Atlas(); |
75 | |
76 | void generateTexture() override; |
77 | void uploadPendingTexture(int i) override; |
78 | |
79 | Texture *create(const QByteArray &data, int dataLength, int dataOffset, const QSize &size, const QSize &paddedSize); |
80 | |
81 | uint format() const { return m_format; } |
82 | |
83 | private: |
84 | uint m_format; |
85 | }; |
86 | |
87 | class Texture : public QSGOpenGLAtlasTexture::TextureBase |
88 | { |
89 | Q_OBJECT |
90 | public: |
91 | Texture(Atlas *atlas, const QRect &textureRect, const QByteArray &data, int dataLength, int dataOffset, const QSize &size); |
92 | ~Texture(); |
93 | |
94 | QSize textureSize() const override { return m_size; } |
95 | bool hasAlphaChannel() const override; |
96 | bool hasMipmaps() const override { return false; } |
97 | |
98 | QRectF normalizedTextureSubRect() const override { return m_texture_coords_rect; } |
99 | |
100 | QSGTexture *removedFromAtlas() const override; |
101 | |
102 | const QByteArray &data() const { return m_data; } |
103 | int sizeInBytes() const { return m_dataLength; } |
104 | int dataOffset() const { return m_dataOffset; } |
105 | |
106 | private: |
107 | QRectF m_texture_coords_rect; |
108 | mutable QSGTexture *m_nonatlas_texture; |
109 | QByteArray m_data; |
110 | QSize m_size; |
111 | int m_dataLength; |
112 | int m_dataOffset; |
113 | }; |
114 | |
115 | } |
116 | |
117 | QT_END_NAMESPACE |
118 | |
119 | #endif |
120 | |