| 1 | /* |
|---|---|
| 2 | SPDX-FileCopyrightText: 2009 Canonical |
| 3 | SPDX-FileContributor: Aurélien Gâteau <aurelien.gateau@canonical.com> |
| 4 | |
| 5 | SPDX-License-Identifier: LGPL-2.0-only OR LGPL-3.0-only |
| 6 | */ |
| 7 | |
| 8 | #include "imageconverter.h" |
| 9 | |
| 10 | #include <QDBusArgument> |
| 11 | #include <QDBusMetaType> |
| 12 | #include <QImage> |
| 13 | |
| 14 | namespace ImageConverter |
| 15 | { |
| 16 | /** |
| 17 | * A structure representing an image which can be marshalled to fit the |
| 18 | * notification spec. |
| 19 | */ |
| 20 | struct SpecImage { |
| 21 | int width, height, rowStride; |
| 22 | bool hasAlpha; |
| 23 | int bitsPerSample, channels; |
| 24 | QByteArray data; |
| 25 | }; |
| 26 | |
| 27 | QDBusArgument &operator<<(QDBusArgument &argument, const SpecImage &image) |
| 28 | { |
| 29 | argument.beginStructure(); |
| 30 | argument << image.width << image.height << image.rowStride << image.hasAlpha; |
| 31 | argument << image.bitsPerSample << image.channels << image.data; |
| 32 | argument.endStructure(); |
| 33 | return argument; |
| 34 | } |
| 35 | |
| 36 | const QDBusArgument &operator>>(const QDBusArgument &argument, SpecImage &image) |
| 37 | { |
| 38 | argument.beginStructure(); |
| 39 | argument >> image.width >> image.height >> image.rowStride >> image.hasAlpha; |
| 40 | argument >> image.bitsPerSample >> image.channels >> image.data; |
| 41 | argument.endStructure(); |
| 42 | return argument; |
| 43 | } |
| 44 | |
| 45 | } // namespace |
| 46 | |
| 47 | // This must be before the QVariant::fromValue below (#211726) |
| 48 | Q_DECLARE_METATYPE(ImageConverter::SpecImage) |
| 49 | |
| 50 | namespace ImageConverter |
| 51 | { |
| 52 | QVariant variantForImage(const QImage &_image) |
| 53 | { |
| 54 | qDBusRegisterMetaType<SpecImage>(); |
| 55 | |
| 56 | const bool hasAlpha = _image.hasAlphaChannel(); |
| 57 | QImage image; |
| 58 | if (hasAlpha) { |
| 59 | image = _image.convertToFormat(f: QImage::Format_RGBA8888); |
| 60 | } else { |
| 61 | image = _image.convertToFormat(f: QImage::Format_RGB888); |
| 62 | } |
| 63 | |
| 64 | QByteArray data((const char *)image.constBits(), image.sizeInBytes()); |
| 65 | |
| 66 | SpecImage specImage; |
| 67 | specImage.width = image.width(); |
| 68 | specImage.height = image.height(); |
| 69 | specImage.rowStride = image.bytesPerLine(); |
| 70 | specImage.hasAlpha = hasAlpha; |
| 71 | specImage.bitsPerSample = 8; |
| 72 | specImage.channels = hasAlpha ? 4 : 3; |
| 73 | specImage.data = data; |
| 74 | |
| 75 | return QVariant::fromValue(value: specImage); |
| 76 | } |
| 77 | |
| 78 | } // namespace |
| 79 |