/*
* RootlessBlockHandler
* If the redisplay timer has expired, flush drawing before blocking
* on select().
*/
static void
RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask)
{
ScreenPtr pScreen = pbdata;
RootlessScreenRec *screenRec = SCREENREC(pScreen);
if (screenRec->redisplay_expired) {
screenRec->redisplay_expired = FALSE;
RootlessRedisplayScreen(pScreen);
}
}
static void
RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
unsigned int format, unsigned long planeMask, char *pdstLine)
{
ScreenPtr pScreen = pDrawable->pScreen;
SCREEN_UNWRAP(pScreen, GetImage);
if (pDrawable->type == DRAWABLE_WINDOW) {
int x0, y0, x1, y1;
RootlessWindowRec *winRec;
// Many apps use GetImage to sync with the visible frame buffer
// FIXME: entire screen or just window or all screens?
RootlessRedisplayScreen(pScreen);
// RedisplayScreen stops drawing, so we need to start it again
RootlessStartDrawing((WindowPtr)pDrawable);
/* Check that we have some place to read from. */
winRec = WINREC(TopLevelParent((WindowPtr) pDrawable));
if (winRec == NULL)
goto out;
/* Clip to top-level window bounds. */
/* FIXME: fbGetImage uses the width parameter to calculate the
stride of the destination pixmap. If w is clipped, the data
returned will be garbage, although we will not crash. */
x0 = pDrawable->x + sx;
y0 = pDrawable->y + sy;
x1 = x0 + w;
y1 = y0 + h;
x0 = max (x0, winRec->x);
y0 = max (y0, winRec->y);
x1 = min (x1, winRec->x + winRec->width);
y1 = min (y1, winRec->y + winRec->height);
sx = x0 - pDrawable->x;
sy = y0 - pDrawable->y;
w = x1 - x0;
h = y1 - y0;
if (w <= 0 || h <= 0)
goto out;
}
pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
out:
SCREEN_WRAP(pScreen, GetImage);
}
static void
RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
unsigned int format, unsigned long planeMask, char *pdstLine)
{
ScreenPtr pScreen = pDrawable->pScreen;
SCREEN_UNWRAP(pScreen, GetImage);
if (pDrawable->type == DRAWABLE_WINDOW) {
/* Many apps use GetImage to sync with the visible frame buffer */
// fixme entire screen or just window or all screens?
RootlessRedisplayScreen(pScreen);
}
pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
SCREEN_WRAP(pScreen, GetImage);
}
// Flush drawing before blocking on select().
static void
RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask)
{
RootlessRedisplayScreen((ScreenPtr) pbdata);
}
