qpixelformat.cpp

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#include "qpixelformat.h"
 
QT_BEGIN_NAMESPACE
 
static_assert(sizeof(QPixelFormat) == sizeof(quint64));
 
 
namespace QtPrivate {
    QPixelFormat QPixelFormat_createYUV(QPixelFormat::YUVLayout yuvLayout,
                                        uchar alphaSize,
                                        QPixelFormat::AlphaUsage alphaUsage,
                                        QPixelFormat::AlphaPosition alphaPosition,
                                        QPixelFormat::AlphaPremultiplied premultiplied,
                                        QPixelFormat::TypeInterpretation typeInterpretation,
                                        QPixelFormat::ByteOrder byteOrder)
    {
        uchar bits_per_pixel = 0;
        switch (yuvLayout) {
        case QPixelFormat::YUV444:
            bits_per_pixel = 24;
            break;
        case QPixelFormat::YUV422:
            bits_per_pixel = 16;
            break;
        case QPixelFormat::YUV411:
        case QPixelFormat::YUV420P:
        case QPixelFormat::YUV420SP:
        case QPixelFormat::YV12:
            bits_per_pixel = 12;
            break;
        case QPixelFormat::UYVY:
        case QPixelFormat::YUYV:
            bits_per_pixel = 16;
            break;
        case QPixelFormat::NV12:
        case QPixelFormat::NV21:
            bits_per_pixel = 12;
            break;
        case QPixelFormat::IMC1:
        case QPixelFormat::IMC2:
        case QPixelFormat::IMC3:
        case QPixelFormat::IMC4:
            bits_per_pixel = 12;
            break;
        case QPixelFormat::Y8:
            bits_per_pixel = 8;
            break;
        case QPixelFormat::Y16:
            bits_per_pixel = 16;
            break;
        }
 
        return QPixelFormat(QPixelFormat::YUV,
                            0, 0, 0, 0,
                            bits_per_pixel,
                            alphaSize,
                            alphaUsage,
                            alphaPosition,
                            premultiplied,
                            typeInterpretation,
                            byteOrder,
                            yuvLayout);
    }
}
 
QT_END_NAMESPACE