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Evas textblock: Speed up rendering. Find the start paragraph for all. 

Until now all the format/text drawing loops went through all the
paragraphs skipping all the ones that are outside the clipping/object
zone. This changeset find the first paragraph to be renedred first so we
don't walk all the paragraphs for nothing. This speeds up rendering of
the ends of very big textblocks in a very noticable manner.

SVN revision: 59404
This commit is contained in:
Tom Hacohen 2011-05-15 12:00:01 +00:00
parent 44b8ca79a4
commit 353ce0f48a
1 changed files with 17 additions and 2 deletions
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19
legacy/evas/src/lib/canvas/evas_object_textblock.c
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@ -8073,7 +8073,7 @@ evas_object_textblock_free(Evas_Object *obj)
static void
evas_object_textblock_render(Evas_Object *obj, void *output, void *context, void *surface, int x, int y)
{
Evas_Object_Textblock_Paragraph *par;
Evas_Object_Textblock_Paragraph *par, *start;
Evas_Object_Textblock_Line *ln;
Evas_Object_Textblock *o;
int i, j;
@ -8106,7 +8106,7 @@ evas_object_textblock_render(Evas_Object *obj, void *output, void *context, void
if (!o->paragraphs) return;
#define ITEM_WALK() \
EINA_INLIST_FOREACH(o->paragraphs, par) \
EINA_INLIST_FOREACH(start, par) \
{ \
if (!par->visible) continue; \
if (clip) \
@ -8212,6 +8212,21 @@ evas_object_textblock_render(Evas_Object *obj, void *output, void *context, void
} \
while (0)
/* Find the first paragraph and start working on that */
EINA_INLIST_FOREACH(o->paragraphs, par)
{
if (!par->visible) continue;
if ((par->y + par->h) <= 0) continue;
if (clip)
{
if ((obj->cur.geometry.y + y + par->y + par->h) < (cy - 20))
continue;
}
break;
}
start = par;
ITEM_WALK()
{