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evas: Try to reuse glyph array if possible 

This sould bring back a little bit of text rendering performance, while at
the same time decreasing memory usage and fragmentation.

Patch by: Leandro Pereira <leandro@profusion.mobi>



SVN revision: 82660
This commit is contained in:
Leandro Pereira 2013-01-11 19:49:15 +00:00 committed by Ulisses Furquim
parent 468b44c444
commit a868276f11
1 changed files with 26 additions and 12 deletions
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38
src/lib/evas/common/evas_font_draw.c
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@ -244,6 +244,7 @@ evas_common_font_draw_prepare(Evas_Text_Props *text_props)
RGBA_Font_Glyph *fg;
Eina_Inarray *glyphs;
size_t unit = 32;
Eina_Bool reused_glyphs;
EVAS_FONT_WALK_TEXT_INIT();
fi = text_props->font_instance;
@ -253,7 +254,17 @@ evas_common_font_draw_prepare(Evas_Text_Props *text_props)
return;
if (text_props->len < unit) unit = text_props->len;
glyphs = eina_inarray_new(sizeof(Evas_Glyph), unit);
if (text_props->glyphs && text_props->glyphs->refcount == 1)
{
glyphs = text_props->glyphs->array;
glyphs->len = 0;
reused_glyphs = EINA_TRUE;
}
else
{
glyphs = eina_inarray_new(sizeof(Evas_Glyph), unit);
reused_glyphs = EINA_FALSE;
}
evas_common_font_int_reload(fi);
if (fi->src->current_size != fi->size)
@ -286,18 +297,21 @@ evas_common_font_draw_prepare(Evas_Text_Props *text_props)
}
EVAS_FONT_WALK_TEXT_END();
/*
* Clearing the reference to the glyph array is fine, since this
* reference is only used to use this from another thread, which is now
* holding the reference.
*/
if (text_props->glyphs)
evas_common_font_glyphs_unref(text_props->glyphs);
if (!reused_glyphs)
{
/*
* Clearing the reference to the glyph array is fine, since this
* reference is only used to use this from another thread, which is now
* holding the reference.
*/
if (text_props->glyphs)
evas_common_font_glyphs_unref(text_props->glyphs);
text_props->glyphs = malloc(sizeof(*text_props->glyphs));
if (!text_props->glyphs) goto error;
text_props->glyphs->refcount = 1;
text_props->glyphs->array = glyphs;
text_props->glyphs = malloc(sizeof(*text_props->glyphs));
if (!text_props->glyphs) goto error;
text_props->glyphs->refcount = 1;
text_props->glyphs->array = glyphs;
}
/* check if there's a request queue in fi, if so ask cserve2 to render
* those glyphs