/*
* Function : Save display canvas into framebuffer
*
*/
byte QNXGF_post(
LIBAROMA_FBP me, wordp __restrict src,
int dx, int dy, int dw, int dh,
int sx, int sy, int sw, int sh) {
if (me == NULL) {
return 0;
}
libaroma_mutex_lock(___qnxfbmutex);
QNXGF_INTERNALP mi = (QNXGF_INTERNALP) me->internal;
wordp copy_src = (wordp) (src + ((sw * sy) + sx));
gf_draw_begin(mi->context);
gf_draw_image(
mi->context,
(const uint8_t *) copy_src,
GF_FORMAT_PKLE_RGB565,
sw * 2,
dx, dy,
dw, dh,
0
);
gf_draw_flush(mi->context);
gf_draw_end(mi->context);
libaroma_mutex_unlock(___qnxfbmutex);
return 1;
}
/*!
\reimp
*/
void QQnxScreen::exposeRegion(QRegion r, int changing)
{
// here is where the actual magic happens. QWS will call exposeRegion whenever
// a region on the screen is dirty and needs to be updated on the actual screen.
// first, call the parent implementation. The parent implementation will update
// the region on our in-memory surface
QScreen::exposeRegion(r, changing);
// now our in-memory surface should be up to date with the latest changes.
if (!d->hwSurface)
return;
// the code below copies the region from the in-memory surface to the hardware.
// just get the bounding rectangle of the region. Most screen updates are rectangular
// anyways. Code could be optimized to blit each and every member of the region
// individually, but in real life, the speed-up is neglectable
const QRect br = r.boundingRect();
if (br.isEmpty())
return; // ignore empty regions because gf_draw_blit2 doesn't like 0x0 dimensions
// start drawing.
int ret = gf_draw_begin(d->context);
if (ret != GF_ERR_OK) {
qWarning("QQnxScreen: gf_draw_begin() failed with error code %d", ret);
return;
}
// blit the changed region from the memory surface to the hardware surface
ret = gf_draw_blit2(d->context, d->memSurface, d->hwSurface,
br.x(), br.y(), br.right(), br.bottom(), br.x(), br.y());
if (ret != GF_ERR_OK)
qWarning("QQnxScreen: gf_draw_blit2() failed with error code %d", ret);
// flush all drawing commands (in our case, a single blit)
ret = gf_draw_flush(d->context);
if (ret != GF_ERR_OK)
qWarning("QQnxScreen: gf_draw_flush() failed with error code %d", ret);
// tell QNX that we're done drawing.
gf_draw_end(d->context);
}
