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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Inheritance diagram for QnxTextureBuffer: Collaboration diagram for QnxTextureBuffer:Public Member Functions | |
| QnxTextureBuffer (QQnxWindowGrabber *QQnxWindowGrabber) | |
| QVideoFrame::MapMode | mapMode () const override |
| void | unmap () override |
| Releases the memory mapped by the map() function. | |
| MapData | map (QVideoFrame::MapMode) override |
| Independently maps the planes of a video buffer to memory. | |
| quint64 | textureHandle (QRhi *, int plane) const override |
| Returns a texture handle to the data buffer. | |
| Public Member Functions inherited from QAbstractVideoBuffer | |
| QAbstractVideoBuffer (QVideoFrame::HandleType type, QRhi *rhi=nullptr) | |
| Constructs an abstract video buffer of the given type. | |
| virtual | ~QAbstractVideoBuffer () |
| Destroys an abstract video buffer. | |
| QVideoFrame::HandleType | handleType () const |
| Returns the type of a video buffer's handle. | |
| QRhi * | rhi () const |
| Returns the QRhi instance. | |
| virtual std::unique_ptr< QVideoFrameTextures > | mapTextures (QRhi *) |
| virtual QMatrix4x4 | externalTextureMatrix () const |
| virtual QByteArray | underlyingByteArray (int) const |
Additional Inherited Members | |
| Protected Attributes inherited from QAbstractVideoBuffer | |
| QVideoFrame::HandleType | m_type |
| QRhi * | m_rhi = nullptr |
Definition at line 65 of file qqnxmediaplayer.cpp.
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inline |
Definition at line 68 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Independently maps the planes of a video buffer to memory.
The map mode indicates whether the contents of the mapped memory should be read from and/or written to the buffer. If the map mode includes the QVideoFrame::ReadOnly flag the mapped memory will be populated with the content of the buffer when initially mapped. If the map mode includes the QVideoFrame::WriteOnly flag the content of the possibly modified mapped memory will be written back to the buffer when unmapped.
When access to the data is no longer needed be sure to call the unmap() function to release the mapped memory and possibly update the buffer contents.
Returns the number of planes in the mapped video data. For each plane the line stride of that plane will be returned in bytesPerLine, and a pointer to the plane data will be returned in data. The accumulative size of the mapped data is returned in numBytes.
Not all buffer implementations will map more than the first plane, if this returns a single plane for a planar format the additional planes will have to be calculated from the line stride of the first plane and the frame height. Mapping a buffer with QVideoFrame will do this for you.
To implement this function create a derivative of QAbstractPlanarVideoBuffer and implement its map function instance instead.
Implements QAbstractVideoBuffer.
Definition at line 82 of file qqnxmediaplayer.cpp.
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inlineoverridevirtual |
Implements QAbstractVideoBuffer.
Definition at line 75 of file qqnxmediaplayer.cpp.
References QVideoFrame::ReadWrite.
Returns a texture handle to the data buffer.
Reimplemented from QAbstractVideoBuffer.
Definition at line 87 of file qqnxmediaplayer.cpp.
References QQnxWindowGrabber::getNextTextureId().
Here is the call graph for this function:
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inlineoverridevirtual |
Releases the memory mapped by the map() function.
If the \l {QVideoFrame::MapMode}{MapMode} included the QVideoFrame::WriteOnly flag this will write the current content of the mapped memory back to the video frame.
Implements QAbstractVideoBuffer.
Definition at line 80 of file qqnxmediaplayer.cpp.
1.10.0