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enhance composite_layers to support null layers

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Vincent Wei
2021-03-27 11:04:44 +08:00
parent f64680082c
commit 49e714431a
1 changed files with 31 additions and 22 deletions
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53
src/kernel/compsor-fallback.c
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@@ -926,9 +926,6 @@ static unsigned int composite_layers (CompositorCtxt* ctxt, MG_Layer* layers[],
clock_gettime (CLOCK_MONOTONIC, &ts_start);
_DBG_PRINTF ("composite %d layers (%s and %s) at percent %d\n",
nr_layers, layers[0]->name, layers[1]->name, cp->percent);
rc0 = ctxt->rc_screen;
rc1 = ctxt->rc_screen;
if (cp->method == FCM_VERTICAL) {
@@ -940,33 +937,45 @@ static unsigned int composite_layers (CompositorCtxt* ctxt, MG_Layer* layers[],
rc1.left = rc0.right;
}
// composite the first layer
ctxt->layer = layers[0];
ctxt->offx = rc0.right - ctxt->rc_screen.right;
ctxt->offy = rc0.bottom - ctxt->rc_screen.bottom;
SetClipRgn (&ctxt->wins_rgn, &rc0);
SetClipRgn (&ctxt->dirty_rgn, &rc0);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, ctxt->offx, ctxt->offy);
composite_on_dirty_region (ctxt, 0);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, -ctxt->offx, -ctxt->offy);
if (layers[0]) {
// composite the first layer
ctxt->layer = layers[0];
ctxt->offx = rc0.right - ctxt->rc_screen.right;
ctxt->offy = rc0.bottom - ctxt->rc_screen.bottom;
// composite the second layer
ctxt->layer = layers[1];
ctxt->offx = rc1.left;
ctxt->offy = rc1.top;
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, ctxt->offx, ctxt->offy);
composite_on_dirty_region (ctxt, 0);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, -ctxt->offx, -ctxt->offy);
}
else {
// only composite the wallpaper
composite_wallpaper (ctxt);
}
SetClipRgn (&ctxt->wins_rgn, &rc1);
SetClipRgn (&ctxt->dirty_rgn, &rc1);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, ctxt->offx, ctxt->offy);
composite_on_dirty_region (ctxt, 0);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, -ctxt->offx, -ctxt->offy);
if (layers[1]) {
// composite the second layer
ctxt->layer = layers[1];
ctxt->offx = rc1.left;
ctxt->offy = rc1.top;
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, ctxt->offx, ctxt->offy);
composite_on_dirty_region (ctxt, 0);
if (ctxt->offx || ctxt->offy)
offset_regions_of_general_znodes (ctxt->layer, -ctxt->offx, -ctxt->offy);
}
else {
// only composite the wallpaper
composite_wallpaper (ctxt);
}
SyncUpdateDC (HDC_SCREEN_SYS);