static int
FreeDamageExt(pointer value, XID did)
{
DamageExtPtr pDamageExt = (DamageExtPtr) value;
/*
* Get rid of the resource table entry hanging from the window id
*/
pDamageExt->id = 0;
if (WindowDrawable(pDamageExt->pDrawable->type))
FreeResourceByType(pDamageExt->pDrawable->id, DamageExtWinType, TRUE);
if (pDamageExt->pDamage) {
DamageUnregister(pDamageExt->pDrawable, pDamageExt->pDamage);
DamageDestroy(pDamageExt->pDamage);
}
free(pDamageExt);
return Success;
}
static void
trim_region (RegionPtr pRegion,
DrawablePtr pDrawable,
int subWindowMode)
{
RegionRec pixClip;
int draw_x = 0;
int draw_y = 0;
#ifdef COMPOSITE
int screen_x = 0, screen_y = 0;
#endif
/* short circuit for empty regions */
if (!REGION_NOTEMPTY(pScreen, pRegion))
return;
#ifdef COMPOSITE
/*
* When drawing to a pixmap which is storing window contents,
* the region presented is in pixmap relative coordinates which
* need to be converted to screen relative coordinates
*/
if (pDrawable->type != DRAWABLE_WINDOW)
{
screen_x = ((PixmapPtr) pDrawable)->screen_x - pDrawable->x;
screen_y = ((PixmapPtr) pDrawable)->screen_y - pDrawable->y;
}
if (screen_x || screen_y)
REGION_TRANSLATE (pScreen, pRegion, screen_x, screen_y);
#endif
/* Clip against any children */
if (pDrawable->type == DRAWABLE_WINDOW &&
((WindowPtr)(pDrawable))->backingStore == NotUseful)
{
if (subWindowMode == ClipByChildren)
{
REGION_INTERSECT(pScreen, pRegion, pRegion,
&((WindowPtr)(pDrawable))->clipList);
}
else if (subWindowMode == IncludeInferiors)
{
RegionPtr pTempRegion =
NotClippedByChildren((WindowPtr)(pDrawable));
REGION_INTERSECT(pScreen, pRegion, pRegion, pTempRegion);
REGION_DESTROY(pScreen, pTempRegion);
}
/* If subWindowMode is set to an invalid value, don't perform
* any drawable-based clipping. */
}
/* Clip against border or pixmap bounds */
if (pDrawable->type == DRAWABLE_WINDOW)
{
REGION_INTERSECT (pScreen, pRegion, pRegion,
&((WindowPtr)(pDrawable))->borderClip);
}
else
{
BoxRec box;
draw_x = pDrawable->x;
draw_y = pDrawable->y;
#ifdef COMPOSITE
/*
* Need to move everyone to screen coordinates
* XXX what about off-screen pixmaps with non-zero x/y?
*/
if (!WindowDrawable(pDrawable->type))
{
draw_x += ((PixmapPtr) pDrawable)->screen_x;
draw_y += ((PixmapPtr) pDrawable)->screen_y;
}
#endif
box.x1 = draw_x;
box.y1 = draw_y;
box.x2 = draw_x + pDrawable->width;
box.y2 = draw_y + pDrawable->height;
REGION_INIT(pScreen, &pixClip, &box, 1);
REGION_INTERSECT (pScreen, pRegion, pRegion, &pixClip);
REGION_UNINIT(pScreen, &pixClip);
}
/*
* Move region to target coordinate space
*/
if (draw_x || draw_y)
REGION_TRANSLATE (pScreen, pRegion, -draw_x, -draw_y);
/* Now do something with the damage */
}
