| 1 | // Copyright (C) 2016 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 QOPENGLTEXTUREBLITTER_H |
| 5 | #define QOPENGLTEXTUREBLITTER_H |
| 6 | |
| 7 | #include <QtOpenGL/qtopenglglobal.h> |
| 8 | |
| 9 | #include <QtGui/qopengl.h> |
| 10 | #include <QtGui/QMatrix3x3> |
| 11 | #include <QtGui/QMatrix4x4> |
| 12 | |
| 13 | QT_BEGIN_NAMESPACE |
| 14 | |
| 15 | class QOpenGLTextureBlitterPrivate; |
| 16 | |
| 17 | class Q_OPENGL_EXPORT QOpenGLTextureBlitter |
| 18 | { |
| 19 | public: |
| 20 | QOpenGLTextureBlitter(); |
| 21 | ~QOpenGLTextureBlitter(); |
| 22 | |
| 23 | enum Origin { |
| 24 | OriginBottomLeft, |
| 25 | OriginTopLeft |
| 26 | }; |
| 27 | |
| 28 | bool create(); |
| 29 | bool isCreated() const; |
| 30 | void destroy(); |
| 31 | |
| 32 | bool supportsExternalOESTarget() const; |
| 33 | bool supportsRectangleTarget() const; |
| 34 | |
| 35 | void bind(GLenum target = GL_TEXTURE_2D); |
| 36 | void release(); |
| 37 | |
| 38 | void setRedBlueSwizzle(bool swizzle); |
| 39 | void setOpacity(float opacity); |
| 40 | |
| 41 | void blit(GLuint texture, const QMatrix4x4 &targetTransform, Origin sourceOrigin); |
| 42 | void blit(GLuint texture, const QMatrix4x4 &targetTransform, const QMatrix3x3 &sourceTransform); |
| 43 | |
| 44 | static QMatrix4x4 targetTransform(const QRectF &target, const QRect &viewport); |
| 45 | static QMatrix3x3 sourceTransform(const QRectF &subTexture, const QSize &textureSize, Origin origin); |
| 46 | |
| 47 | private: |
| 48 | Q_DISABLE_COPY(QOpenGLTextureBlitter) |
| 49 | Q_DECLARE_PRIVATE(QOpenGLTextureBlitter) |
| 50 | QScopedPointer<QOpenGLTextureBlitterPrivate> d_ptr; |
| 51 | }; |
| 52 | |
| 53 | QT_END_NAMESPACE |
| 54 | |
| 55 | #endif //QOPENGLTEXTUREBLITTER_H |
| 56 |