len0rd/rockbox
1
0
Fork 1
mirror of https://github.com/Rockbox/rockbox.git synced 2025-11-09 21:22:39 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

fonts: Do not unload completely on USB.

Browse source 
The font engine can now perform cache lookups even if the font file is
closed, if the font was disabled with the new font_disable_all() function.
It is highly probable that the lookup succeeds but in the cache-miss case
a blank, full-width glyph will be returned.

Change-Id: I3c97e747d2a0ba30c7b495c6118c9f029d265b56
This commit is contained in:
Thomas Martitz 2014-01-15 13:37:40 +01:00
parent 84c7d6133b
commit c23ce62829
4 changed files with 123 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

10
firmware/include/font_cache.h
View file

@ -17,8 +17,10 @@
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _FONT_CACHE_H_
#define _FONT_CACHE_H_
#include <stdbool.h>
#include "lru.h"
/*******************************************************************************
@ -45,10 +47,16 @@ struct font_cache_entry
/* Create an auto sized font cache from buf */
void font_cache_create(
struct font_cache* fcache, void* buf, int buf_size, int bitmap_bytes_size);
/* Get font cache entry */
/* Get font cache entry for the given char_code
*
* cache_only: true if only a cache lookup should be performed and loading on miss should be avoided
*
* Note: With cache_only this can return NULL, which otherwise never happens */
struct font_cache_entry* font_cache_get(
struct font_cache* fcache,
unsigned short char_code,
bool cache_only,
void (*callback) (struct font_cache_entry* p, void *callback_data),
void *callback_data);