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raster: special case optimization for retcangle objects... since they are a 

solid color - if you move or resize a rect and it doesnt change color, or
stakcing or visability - it only changes size and/or location, i do an XOR on
the update rectangles (this is a logical geometric XOR) and only update those
rectangles... why do this? see efm with the selection rectangle? it re-renders
the entire rectangle area - even only the edges change while you drag it around
so this special casing in evas would handle that and optimize.


SVN revision: 3690
This commit is contained in:
Carsten Haitzler 2000-10-22 19:14:22 +00:00
parent 4d126e9df5
commit 61f9e4f648
1 changed files with 123 additions and 11 deletions
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134
legacy/evas/src/evas_render.c
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@ -302,9 +302,10 @@ evas_render(Evas e)
for (ll = layer->objects; ll; ll = ll->next)
{
Evas_Object_Any o;
int real_change;
int real_change, prop_change;
real_change = 0;
prop_change = 0;
o = ll->data;
if (o->delete_me)
@ -322,7 +323,15 @@ evas_render(Evas e)
(o->current.layer != o->previous.layer) ||
(o->current.stacking)))
)
real_change = 1;
{
if (((o->current.visible != o->previous.visible) ||
((o->current.visible) &&
(o->current.zoomscale != o->previous.zoomscale) ||
(o->current.layer != o->previous.layer) ||
(o->current.stacking))))
prop_change = 1;
real_change = 1;
}
o->current.stacking = 0;
@ -384,7 +393,10 @@ evas_render(Evas e)
(oo->current.b != oo->previous.b) ||
(oo->current.a != oo->previous.a)
)
real_change = 1;
{
real_change = 1;
prop_change = 1;
}
oo->previous = oo->current;
}
break;
@ -441,14 +453,114 @@ evas_render(Evas e)
{
int x, y, w, h;
_evas_object_get_previous_translated_coords(e, o,
&x, &y,
&w, &h);
evas_update_rect(e, x, y, w, h);
_evas_object_get_current_translated_coords(e, o,
&x, &y,
&w, &h);
evas_update_rect(e, x, y, w, h);
/* special case for rectangle since its all one color */
if ((o->type == OBJECT_RECTANGLE) &&
(!prop_change) &&
(RECTS_INTERSECT(o->current.x, o->current.y,
o->current.w, o->current.h,
o->previous.x, o->previous.y,
o->previous.w, o->previous.h)))
{
int xx, yy, ww, hh;
int x1[4], y1[4], i, j;
Evas_List rl, rll;
Evas_Rectangle r;
_evas_object_get_previous_translated_coords(e, o,
&x, &y,
&w, &h);
_evas_object_get_current_translated_coords(e, o,
&xx, &yy,
&ww, &hh);
rl = NULL;
if (x < xx)
{
x1[0] = x;
x1[1] = xx;
}
else
{
x1[0] = xx;
x1[1] = x;
}
if ((x + w) < (xx + ww))
{
x1[2] = x + w;
x1[3] = xx + ww;
}
else
{
x1[2] = xx + ww;
x1[3] = x + w;
}
if (y < yy)
{
y1[0] = y;
y1[1] = yy;
}
else
{
y1[0] = yy;
y1[1] = y;
}
if ((y + h) < (yy + hh))
{
y1[2] = y + h;
y1[3] = yy + hh;
}
else
{
y1[2] = yy + hh;
y1[3] = y + h;
}
for (j = 0; j < 3; j++)
{
for (i = 0; i < 3; i++)
{
r = malloc(sizeof(struct _Evas_Rectangle));
rl = evas_list_append(rl, r);
r->x = x1[i];
r->y = y1[j];
r->w = x1[i + 1] - x1[i];
r->h = y1[j + 1] - y1[j];
}
}
if (rl)
{
for (rll = rl; rll; rll = rll->next)
{
r = rll->data;
if ((r->w > 0) && (r->h > 0))
{
int intsec1, intsec2;
intsec1 = 0;
intsec2 = 0;
if (RECTS_INTERSECT(r->x, r->y, r->w, r->h,
x, y, w, h))
intsec1 = 1;
if (RECTS_INTERSECT(r->x, r->y, r->w, r->h,
xx, yy, ww, hh))
intsec2 = 1;
if ((intsec1 ^ intsec2))
evas_update_rect(e, r->x, r->y, r->w, r->h);
}
free(r);
}
evas_list_free(rl);
}
}
else
{
_evas_object_get_previous_translated_coords(e, o,
&x, &y,
&w, &h);
evas_update_rect(e, x, y, w, h);
_evas_object_get_current_translated_coords(e, o,
&x, &y,
&w, &h);
evas_update_rect(e, x, y, w, h);
}
}
o->previous = o->current;
}