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Add merge rectangles code (borrowed from the x11 engine). 

Signed-off-by: Christopher Michael <cp.michael@samsung.com>

SVN revision: 83265
This commit is contained in:
Christopher Michael 2013-01-24 09:18:15 +00:00 committed by Christopher Michael
parent 824971a110
commit 17225d31e8
1 changed files with 53 additions and 0 deletions
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53
src/modules/evas/engines/wayland_shm/evas_engine.c
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@ -106,6 +106,59 @@ _output_engine_setup(int w, int h, unsigned int rotation, unsigned int depth, Ei
return re;
}
static Tilebuf_Rect *
_merge_rects(Tilebuf *tb, Tilebuf_Rect *r1, Tilebuf_Rect *r2, Tilebuf_Rect *r3)
{
Tilebuf_Rect *r, *rects;
if (r1)
{
EINA_INLIST_FOREACH(EINA_INLIST_GET(r1), r)
evas_common_tilebuf_add_redraw(tb, r->x, r->y, r->w, r->h);
}
if (r2)
{
EINA_INLIST_FOREACH(EINA_INLIST_GET(r2), r)
evas_common_tilebuf_add_redraw(tb, r->x, r->y, r->w, r->h);
}
if (r2)
{
EINA_INLIST_FOREACH(EINA_INLIST_GET(r3), r)
evas_common_tilebuf_add_redraw(tb, r->x, r->y, r->w, r->h);
}
rects = evas_common_tilebuf_get_render_rects(tb);
/*
// bounding box -> make a bounding box single region update of all regions.
// yes we could try and be smart and figure out size of regions, how far
// apart etc. etc. to try and figure out an optimal "set". this is a tradeoff
// between multiple update regions to render and total pixels to render.
if (rects)
{
px1 = rects->x; py1 = rects->y;
px2 = rects->x + rects->w; py2 = rects->y + rects->h;
EINA_INLIST_FOREACH(EINA_INLIST_GET(rects), r)
{
if (r->x < x1) px1 = r->x;
if (r->y < y1) py1 = r->y;
if ((r->x + r->w) > x2) px2 = r->x + r->w;
if ((r->y + r->h) > y2) py2 = r->y + r->h;
}
evas_common_tilebuf_free_render_rects(rects);
rects = calloc(1, sizeof(Tilebuf_Rect));
if (rects)
{
rects->x = px1;
rects->y = py1;
rects->w = px2 - px1;
rects->h = py2 - py1;
}
}
*/
evas_common_tilebuf_clear(tb);
return rects;
}
/* engine functions */
static void *
eng_info(Evas *eo_evas EINA_UNUSED)