forked from len0rd/rockbox
d05c59f35b
We used 16-bit variables to store the 'character code' everywhere but
this won't let us represent anything beyond U+FFFF.
This patch changes those variables to a custom type that can be 32 or 16
bits depending on the build, and adjusts numerous internal APIs and
datastructures to match. This includes:
* utf8decode() and friends
* on-screen keyboard
* font manipulation, caching, rendering, and generation
* VFAT code parses and generates utf16 dirents
* WIN32 simulator reads and writes utf16 filenames
Note that this patch doesn't _enable_ >16bit unicode support; a followup
patch will turn that on for appropriate targets.
Known bugs:
* Native players in 32-bit unicode mode generate mangled filename
entries if they include UTF16 surrogate codepoints. Root cause
is unclear, and may reside in core dircache code.
Needs testing on:
* windows simulator (16bit+32bit)
Change-Id: I193a00fe2a11a4181ddc82df2d71be52bf00b6e6
40 lines
1.7 KiB
C
40 lines
1.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2009 Tomer Shalev
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef _DIACRITIC_H_
|
|
#define _DIACRITIC_H_
|
|
#include "system.h"
|
|
|
|
#define FIRST_DIACRITIC (0x0300)
|
|
/* Tests whether a given charactor code is a diacritic mark.
|
|
* Sets is_rtl (if it's not NULL) to whether the character
|
|
* belongs to an RTL language.
|
|
*/
|
|
bool is_diacritic(const ucschar_t char_code, bool *is_rtl);
|
|
|
|
/* Note IS_DIACRITIC macros may elide the function call
|
|
* therefore there is a separate _RTL version that requires a bool pointer
|
|
* as it sets the variable to false when the is_diacritic func is skipped
|
|
*/
|
|
#define IS_DIACRITIC(c) (c >= FIRST_DIACRITIC && is_diacritic(c, NULL))
|
|
/* sets the rtl variable to false when function call is skipped */
|
|
#define IS_DIACRITIC_RTL(c, rtl) ((c >= FIRST_DIACRITIC || ( (*rtl = false) )) && is_diacritic(c, rtl))
|
|
|
|
#endif
|