C++ (Cpp) qt_convRgbTo16 Examples

Example #1

File: qcolormap_qws.cpp Project: Fale/qtmoko

uint QColormap::pixel(const QColor &color) const
{
    QRgb rgb = color.rgba();
    if (d->mode == QColormap::Direct) {
        switch(d->depth) {
        case 16:
            return qt_convRgbTo16(rgb);
        case 24:
        case 32:
        {
            const int r = qRed(rgb);
            const int g = qGreen(rgb);
            const int b = qBlue(rgb);
            const int red_shift = 16;
            const int green_shift = 8;
            const int red_mask   = 0xff0000;
            const int green_mask = 0x00ff00;
            const int blue_mask  = 0x0000ff;
            const int tg = g << green_shift;
#ifdef QT_QWS_DEPTH_32_BGR
            if (qt_screen->pixelType() == QScreen::BGRPixel) {
                const int tb = b << red_shift;
                return 0xff000000 | (r & blue_mask) | (tg & green_mask) | (tb & red_mask);
            }
#endif
            const int tr = r << red_shift;
            return 0xff000000 | (b & blue_mask) | (tg & green_mask) | (tr & red_mask);
        }
        }
    }
    return qt_screen->alloc(qRed(rgb), qGreen(rgb), qBlue(rgb));
}

Example #2

File: qscreenahi_qws.cpp Project: Marforius/qt

void QAhiScreen::solidFill(const QColor &color, const QRegion &reg)
{
    AhiSts_t status = AhiStsOk;

    switch (pixelFormat()) {
    case QImage::Format_ARGB32_Premultiplied:
    case QImage::Format_ARGB32:
    case QImage::Format_RGB32:
        status = AhiDrawBrushFgColorSet(d_ptr->context, color.rgba());
        break;
    case QImage::Format_RGB16:
        status = AhiDrawBrushFgColorSet(d_ptr->context, qt_convRgbTo16(color.rgb()));
        break;
    default:
        qFatal("QAhiScreen::solidFill(): Not implemented for pixel format %d",
               int(pixelFormat()));
        break;
    }

    if (status != AhiStsOk) {
        qWarning("QAhiScreen::solidFill(): AhiDrawBrushFgColorSet failed: %x",
                 status);
        return;
    }

    status = AhiDrawBrushSet(d_ptr->context, 0, 0, 0, AHIFLAG_BRUSHSOLID);
    if (status != AhiStsOk) {
        qWarning("QAhiScreen::solidFill(): AhiDrawBrushSet failed: %x",
                 status);
        return;
    }

    status = AhiDrawRopSet(d_ptr->context, AHIMAKEROP3(AHIROPPATCOPY));
    if (status != AhiStsOk) {
        qWarning("QAhiScreen::solidFill(): AhiDrawRopSet failed: %x", status);
        return;
    }

    status = AhiDrawSurfDstSet(d_ptr->context, d_ptr->surface, 0);
    if (status != AhiStsOk) {
        qWarning("QAhiScreen::solidFill(): AhiDrawSurfDst failed: %x", status);
        return;
    }

    const QVector<QRect> rects = (reg & region()).rects();
    QVarLengthArray<AhiRect_t> ahiRects(rects.size());

    for (int i = 0; i < rects.size(); ++i) {
        const QRect rect = rects.at(i);
        ahiRects[i].left = rect.left();
        ahiRects[i].top = rect.top();
        ahiRects[i].right = rect.x() + rect.width();
        ahiRects[i].bottom = rect.y() + rect.height();
    }

    status = AhiDrawBitBltMulti(d_ptr->context, ahiRects.data(),
                                0, ahiRects.size());
    if (status != AhiStsOk)
        qWarning("QAhiScreen::solidFill(): AhiDrawBitBlt failed: %x", status);
}