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39
40#include "qimagevideobuffer_p.h"
41
42#include "qabstractvideobuffer_p.h"
43
44#include <qimage.h>
45#include <qvariant.h>
46
47QT_BEGIN_NAMESPACE
48
49/*!
50 * \class QImageVideoBuffer
51 * \internal
52 *
53 * A video buffer class for a QImage.
54 */
55class QImageVideoBufferPrivate : public QAbstractVideoBufferPrivate
56{
57public:
58 QImageVideoBufferPrivate()
59 : mapMode(QAbstractVideoBuffer::NotMapped)
60 {
61 }
62
63 QAbstractVideoBuffer::MapMode mapMode;
64 QImage image;
65};
66
67QImageVideoBuffer::QImageVideoBuffer(const QImage &image)
68 : QAbstractVideoBuffer(*new QImageVideoBufferPrivate, NoHandle)
69{
70 Q_D(QImageVideoBuffer);
71
72 d->image = image;
73}
74
75QImageVideoBuffer::~QImageVideoBuffer()
76{
77}
78
79QAbstractVideoBuffer::MapMode QImageVideoBuffer::mapMode() const
80{
81 return d_func()->mapMode;
82}
83
84uchar *QImageVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
85{
86 Q_D(QImageVideoBuffer);
87
88 if (d->mapMode == NotMapped && d->image.bits() && mode != NotMapped) {
89 d->mapMode = mode;
90
91 if (numBytes)
92 *numBytes = int(d->image.sizeInBytes());
93
94 if (bytesPerLine)
95 *bytesPerLine = d->image.bytesPerLine();
96
97 return d->image.bits();
98 } else {
99 return nullptr;
100 }
101}
102
103void QImageVideoBuffer::unmap()
104{
105 Q_D(QImageVideoBuffer);
106
107 d->mapMode = NotMapped;
108}
109
110QT_END_NAMESPACE
111