/** Fill a rectangle on the appropriate screen by combining the color
* with the dest picture in the area specified by the list of
* rectangles. For a complete description see the protocol document of
* the RENDER library. */
void
dmxCompositeRects(CARD8 op,
PicturePtr pDst,
xRenderColor * color, int nRect, xRectangle *rects)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
PictureScreenPtr ps = GetPictureScreen(pScreen);
dmxPictPrivPtr pPictPriv = DMX_GET_PICT_PRIV(pDst);
DMX_UNWRAP(CompositeRects, dmxScreen, ps);
#if 0
if (ps->CompositeRects)
ps->CompositeRects(op, pDst, color, nRect, rects);
#endif
/* CompositeRects on back-end server */
if (pPictPriv->pict) {
XRenderFillRectangles(dmxScreen->beDisplay,
op,
pPictPriv->pict,
(XRenderColor *) color,
(XRectangle *) rects, nRect);
dmxSync(dmxScreen, FALSE);
}
DMX_WRAP(CompositeRects, dmxCompositeRects, dmxScreen, ps);
}
static void
set_pixel(Display *dpy, Picture picture, int x, int y, GLfloat *color)
{
XRectangle rect = {x, y, 1, 1};
XRenderColor render_color;
render_color.red = 0xffff * color[0];
render_color.green = 0xffff * color[1];
render_color.blue = 0xffff * color[2];
render_color.alpha = 0xffff * color[3];
XRenderFillRectangles(dpy, PictOpSrc, picture, &render_color, &rect, 1);
}
void QXcbNativeBackingStore::beginPaint(const QRegion ®ion)
{
#if QT_CONFIG(xrender)
if (m_translucentBackground) {
const QVector<XRectangle> xrects = qt_region_to_xrectangles(region);
const XRenderColor color = { 0, 0, 0, 0 };
XRenderFillRectangles(display(), PictOpSrc,
qt_x11PictureHandle(m_pixmap), &color,
xrects.constData(), xrects.size());
}
#else
Q_UNUSED(region);
#endif
}
void MouseMarkEffect::addRect(const QPoint &p1, const QPoint &p2, XRectangle *r, XRenderColor *c)
{
r->x = qMin(p1.x(), p2.x()) - width_2;
r->y = qMin(p1.y(), p2.y()) - width_2;
r->width = qAbs(p1.x()-p2.x()) + 1 + width_2;
r->height = qAbs(p1.y()-p2.y()) + 1 + width_2;
// fast move -> large rect, <strike>tess...</strike> interpolate a line
if (r->width > 3*width/2 && r->height > 3*width/2) {
const int n = sqrt(r->width*r->width + r->height*r->height) / width;
XRectangle *rects = new XRectangle[n-1];
const int w = p1.x() < p2.x() ? r->width : -r->width;
const int h = p1.y() < p2.y() ? r->height : -r->height;
for (int i = 1; i < n; ++i) {
rects[i-1].x = p1.x() + i*w/n;
rects[i-1].y = p1.y() + i*h/n;
rects[i-1].width = rects[i-1].height = width;
}
XRenderFillRectangles(display(), PictOpSrc, effects->xrenderBufferPicture(), c, rects, n - 1);
delete [] rects;
r->x = p1.x();
r->y = p1.y();
r->width = r->height = width;
}
}
