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font_fmt_txt: cache the last letter and its glyph

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This commit is contained in:
Gabor Kiss-Vamosi 2019-06-14 05:55:43 +02:00
parent c52d8e8120
commit f69dfce051
2 changed files with 13 additions and 0 deletions
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8
src/lv_font/lv_font_fmt_txt.c
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@ -113,6 +113,9 @@ static uint32_t get_glyph_dsc_id(const lv_font_t * font, uint32_t letter)
lv_font_fmt_txt_dsc_t * fdsc = (lv_font_fmt_txt_dsc_t *) font->dsc; lv_font_fmt_txt_dsc_t * fdsc = (lv_font_fmt_txt_dsc_t *) font->dsc;
/*Check the chacge first*/
if(letter == fdsc->last_letter) fdsc->last_glyph_id;
uint16_t i; uint16_t i;
for(i = 0; i < fdsc->cmap_num; i++) { for(i = 0; i < fdsc->cmap_num; i++) {
@ -147,9 +150,14 @@ static uint32_t get_glyph_dsc_id(const lv_font_t * font, uint32_t letter)
} }
} }
/*Update the cache*/
fdsc->last_letter = letter;
fdsc->last_glyph_id = glyph_id;
return glyph_id; return glyph_id;
} }
fdsc->last_letter = letter;
fdsc->last_glyph_id = 0;
return 0; return 0;
} }

5
src/lv_font/lv_font_fmt_txt.h
View File

@ -184,6 +184,11 @@ typedef struct {
* from `lv_font_fmt_txt_bitmap_format_t` * from `lv_font_fmt_txt_bitmap_format_t`
*/ */
uint16_t bitmap_format :2; uint16_t bitmap_format :2;
/*Cache the last letter and is glyph id*/
uint32_t last_letter;
uint32_t last_glyph_id;
}lv_font_fmt_txt_dsc_t; }lv_font_fmt_txt_dsc_t;
/********************** /**********************