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improve the fallback compositor

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This commit is contained in:
Vincent Wei
2020-03-02 19:29:15 +08:00
parent 38c4a3e632
commit 48037493f5
1 changed files with 67 additions and 28 deletions
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src/kernel/compsor-fallback.c
+67 -28
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@@ -134,7 +134,29 @@ static int subtract_opaque_win_znodes_above (CompositorCtxt* ctxt, int from)
return nr_subtracted;
}
static int get_lucent_win_znodes_above (CompositorCtxt* ctxt, int from)
#if 0 /* deprecated code */
/*
* This helper is useful for transparent or blur popup menus
* The fallback compositor only supports opaque popup menus.
*/
static void subtract_opaque_ppp_znodes (CompositorCtxt* ctxt)
{
int i, nr_ppp;
// subtract opaque menu znodes
nr_ppp = ServerGetPopupMenusCount();
for (i = 0; i < nr_ppp; i++) {
const ZNODEHEADER* znode_hdr;
CLIPRGN* rgn;
znode_hdr = ServerGetPopupMenuZNodeHeader (i, (void**)rgn, FALSE);
if (znode_hdr && znode_hdr->ct == CT_OPAQUE) {
SubtractRegion (&ctxt->dirty_rgn, &ctxt->dirty_rgn, rgn);
}
}
}
static inline int get_lucent_win_znodes_above (CompositorCtxt* ctxt, int from)
{
int nr_lucent = 0;
int prev;
@@ -164,26 +186,38 @@ static int get_lucent_win_znodes_above (CompositorCtxt* ctxt, int from)
return nr_lucent;
}
/*
* This helper is useful for transparent or blur popup menus
* The fallback compositor only supports opaque popup menus.
static void subtract_opaque_ppp_znodes (CompositorCtxt* ctxt)
static inline void subtract_all_opaque_win_znodes (CompositorCtxt* ctxt,
CLIPRGN* dirty_rgn)
{
int i, nr_ppp;
int next;
// subtract opaque menu znodes
nr_ppp = ServerGetPopupMenusCount();
for (i = 0; i < nr_ppp; i++) {
if (IsEmptyClipRgn (dirty_rgn)) {
return;
}
next = ServerGetNextZNode (NULL, 0, NULL);
while (next > 0) {
const ZNODEHEADER* znode_hdr;
CLIPRGN* rgn;
znode_hdr = ServerGetPopupMenuZNodeHeader (i, (void**)rgn, FALSE);
if (znode_hdr && znode_hdr->ct == CT_OPAQUE) {
SubtractRegion (&ctxt->dirty_rgn, &ctxt->dirty_rgn, rgn);
znode_hdr = ServerGetWinZNodeHeader (NULL, next, (void**)&rgn, FALSE);
assert (znode_hdr);
if ((znode_hdr->flags & ZNIF_VISIBLE) &&
(znode_hdr->ct & CT_SYSTEM_MASK) == CT_OPAQUE) {
SubtractRegion (dirty_rgn, dirty_rgn, rgn);
if (IsEmptyClipRgn (dirty_rgn)) {
return;
}
}
next = ServerGetNextZNode (NULL, next, NULL);
}
}
*/
#endif /* deprecated code */
static inline void tile_dirty_region_for_wallpaper (CompositorCtxt* ctxt)
{
@@ -370,16 +404,12 @@ static void composite_opaque_win_znode (CompositorCtxt* ctxt, int from)
ServerReleaseWinZNodeHeader (NULL, from);
}
static void composite_all_lucent_win_znodes (CompositorCtxt* ctxt,
const CLIPRGN* dirty_rgn)
static void composite_all_lucent_win_znodes_above (CompositorCtxt* ctxt,
const CLIPRGN* dirty_rgn, int zidx)
{
int prev;
if (IsEmptyClipRgn (dirty_rgn)) {
return;
}
prev = ServerGetPrevZNode (NULL, 0, NULL);
prev = ServerGetPrevZNode (NULL, zidx, NULL);
while (prev > 0) {
const ZNODEHEADER* znode_hdr;
CLIPRGN* rgn;
@@ -461,11 +491,6 @@ static void composite_on_dirty_region (CompositorCtxt* ctxt, int from)
return;
}
/* save dirty region for compositing the lucent znodes above
the current znode. */
if (get_lucent_win_znodes_above (ctxt, from))
CopyRegion (&tmp_rgn, &ctxt->dirty_rgn);
/* compositing the current window znode and the znodes below it */
if (from <= 0)
next = ServerGetNextZNode (NULL, 0, NULL);
@@ -473,15 +498,29 @@ static void composite_on_dirty_region (CompositorCtxt* ctxt, int from)
next = from;
while (next > 0) {
if (!IsEmptyClipRgn (&ctxt->dirty_rgn)) {
// save dirty region for compositing the lucent znodes above
// the current znode.
CopyRegion (&tmp_rgn, &ctxt->dirty_rgn);
}
else
break;
composite_opaque_win_znode (ctxt, next);
composite_all_lucent_win_znodes_above (ctxt, &tmp_rgn, next);
next = ServerGetNextZNode (NULL, next, NULL);
}
/* compositing the wallpaper */
composite_wallpaper (ctxt);
if (!IsEmptyClipRgn (&ctxt->dirty_rgn)) {
composite_wallpaper (ctxt);
/* composite all lucent znodes intersected with dirty region. */
composite_all_lucent_win_znodes (ctxt, &tmp_rgn);
/* composite all lucent znodes intersected with dirty region. */
CopyRegion (&tmp_rgn, &ctxt->dirty_rgn);
composite_all_lucent_win_znodes_above (ctxt, &tmp_rgn, 0);
}
EmptyClipRgn (&tmp_rgn);
SyncUpdateDC (HDC_SCREEN_SYS);