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cleanup BIDI APIs

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Vincent Wei
2019-02-14 19:45:50 +08:00
parent 74a84362ca
commit a052b7bf55
4 changed files with 219 additions and 185 deletions
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include/gdi.h
+86 -29
View File
@@ -9577,8 +9577,11 @@ typedef Uint32 Glyph32;
* \brief Data type of struct _GLYPHMAPINFO.
*/
typedef struct _GLYPHMAPINFO {
/** The index of the character in the text string. */
int byte_index;
/** The length of the character in bytes. */
int char_len;
/** The direction of the glyph; TRUE for RTL, FALSE for LTR. */
BOOL is_rtol;
} GLYPHMAPINFO;
@@ -10451,7 +10454,6 @@ MG_EXPORT int GUIAPI GetGlyphsByRules(LOGFONT* logfont,
* - The direction of the glyphs;
* - The writing mode (horizontal or vertical) and text orientation;
* - The hyphenation handling method;
* - The BIDI method;
* - The hanging punctation method;
* - Whether and how to adjust the glyph position for alignment of justify.
* @{
@@ -10499,14 +10501,6 @@ MG_EXPORT int GUIAPI GetGlyphsByRules(LOGFONT* logfont,
#define GRF_TEXT_COMBINE_UPRIGHT_NONE 0x00000000
#define GRF_TEXT_COMBINE_UPRIGHT_ALL 0x00040000
#define GRF_BIDI_MASK 0x00F00000
#define GRF_BIDI_NORMAL 0x00000000
#define GRF_BIDI_EMBED 0x00100000
#define GRF_BIDI_ISOLATE 0x00200000
#define GRF_BIDI_BIDI_OVERRIDE 0x00300000
#define GRF_BIDI_ISOLATE_OVERRIDE 0x00400000
#define GRF_BIDI_PLAINTEXT 0x00500000
#define GRF_ALIGN_MASK 0x0F000000
#define GRF_ALIGN_LEFT 0x00000000
#define GRF_ALIGN_RIGHT 0x01000000
@@ -10582,7 +10576,8 @@ typedef struct _GLYPHPOSORT {
* \param logfont The logfont used to parse the glyph string.
* \param x The x-position of first glyph.
* \param y The y-position of first glyph.
* \param glyphs The pointer to the glyph string.
* \param glyphs The pointer to the glyph string. The glyphs should be reordered
* to be visual ones by calling BIDI functions.
* \param break_opps The pointer to the break opportunities array of the glpyhs.
* It should be returned by \a GetGlyphsByRules.
* \param nr_glyphs The number of the glyphs.
@@ -10999,28 +10994,68 @@ MG_EXPORT int GUIAPI BIDIGetTextVisualGlyphs (LOGFONT* log_font,
const char* text, int text_len, Glyph32** glyphs,
GLYPHMAPINFO** glyphs_map);
/** \fn Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
* Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyphs_map)
* \brief Reorder the logical glyphs string to visual glyphs string.
/** \fn BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
* Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyph_map, int pel)
* \brief Reorder the specified logical glyph string to the visual glyph string.
*
* This function reorders the logical glyphs string to visual
* glyphs string. If \a glyphs_map is not NULL, also returns the visual
* glyphs map info.
* This function reorders the logical glyph string in place to a visual
* glyphs string. If \a index_map is not NULL, it also returns
* the index of logical glyphs.
*
* \param log_font The logical font.
* \param glyphs The pointer to the glyph string.
* \param nr_glyphs The length of the glyph string.
* \param glyphs_map The position map from the logical glyph string to
* the visual glyph string.
* \param glyphs_map The position map returned by \a BIDIGetTextLogicalGlyphs;
* can be NULL.
* \param pel The paragraph embedding level, can be one of the following values:
* - 0: Level 0 (left to right)
* - 1: Level 1 (right to left)
* - others: Determine according to the heuristic given in
* steps P2 and P3 of the Unicode bidirectional algorithm.
*
* \return The pointer to the visual glyph string.
* \return TRUE on success, otherwise FALSE.
*/
MG_EXPORT Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyphs_map);
MG_EXPORT BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyph_map, int pel);
/** obsolete; use BIDILogGlyphs2VisGlyphsEx instead */
static inline Glyph32* BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyph_map)
{
if (BIDILogGlyphs2VisGlyphsEx (log_font, glyphs, nr_glyphs, glyph_map, -1))
return glyphs;
return NULL;
}
/** \fn BOOL GUIAPI BIDIGetVisualGlyphIndexMap (LOGFONT* log_font,
* Glyph32* glyphs, int nr_glyphs, int** index_map, int pel)
* \brief Reorder the specified logical glyph string to the visual glyph string.
*
* This function reorders the logical glyph string in place to a visual
* glyphs string. If \a index_map is not NULL, it also returns
* the index of logical glyphs.
*
* \param log_font The logical font.
* \param glyphs The pointer to the glyph string.
* \param nr_glyphs The length of the glyph string.
* \param index_map The pointer to the position map from the logical glyph string to
* the visual glyph string. If *index_map is NULL, the function will
* try to allocate a new one. The caller should free it when it is not useful.
* \param pel The paragraph embedding level, can be one of the following values:
* - 0: Level 0 (left to right)
* - 1: Level 1 (right to left)
* - others: Determine according to the heuristic given in
* steps P2 and P3 of the Unicode bidirectional algorithm.
*
* \return TRUE on success, otherwise FALSE.
*/
MG_EXPORT BOOL GUIAPI BIDIGetVisualGlyphIndexMap (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int** index_map, int pel);
/**
* \fn void GUIAPI BIDIGetLogicalEmbedLevels (LOGFONT* log_font, \
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels)
* \fn void GUIAPI BIDIGetLogicalEmbedLevelsEx (LOGFONT* log_font, \
const Glyph32* glyphs, int nr_glyphs, int pel, Uint8** embed_levels)
* \brief Get the logical embedding levels for the logical glyph string
* and generate runs by embedding levels, the for reorder to get
* visual glyph string.
@@ -11028,28 +11063,50 @@ MG_EXPORT Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
* \param log_font The logical font.
* \param glyphs The pointer to the logical glyph string.
* \param nr_glyphs The length of the glyph string.
* \param pel The paragraph embedding level, can be one of the following values:
* - 0: Level 0 (left to right)
* - 1: Level 1 (right to left)
* - others: Determine according to the heuristic given in
* steps P2 and P3 of the Unicode bidirectional algorithm.
* \param embed_levels The logical embedding level.
*
* \return None.
*/
MG_EXPORT void GUIAPI BIDIGetLogicalEmbedLevels (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels);
MG_EXPORT void GUIAPI BIDIGetLogicalEmbedLevelsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel, Uint8** embed_levels);
static inline void BIDIGetLogicalEmbeddLevels (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels)
{
BIDIGetLogicalEmbedLevelsEx (log_font, glyphs, nr_glyphs, -1, embed_levels);
}
/**
* \fn void GUIAPI BIDIGetVisualEmbedLevels (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels)
* \fn void GUIAPI BIDIGetVisualEmbedLevelsEx (LOGFONT* log_font,
const Glyph32* glyphs, int nr_glyphs, int pel, Uint8** embed_levels)
* \brief Get the visual embedding levels for the given logical glyph
* string, then you can get the edge for visual glyphs.
*
* \param log_font The logical font.
* \param glyphs The pointer to the logical glyph string.
* \param nr_glyphs The length of the glyph string.
* \param pel The paragraph embedding level, can be one of the following values:
* - 0: Level 0 (left to right)
* - 1: Level 1 (right to left)
* - others: Determine according to the heuristic given in
* steps P2 and P3 of the Unicode bidirectional algorithm.
* \param embed_levels The embedding level logical to visual.
*
* \return void.
*/
MG_EXPORT void GUIAPI BIDIGetVisualEmbedLevels (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels);
MG_EXPORT void GUIAPI BIDIGetVisualEmbedLevelsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel, Uint8** embed_levels);
static inline void BIDIGetVisualEmbeddLevels (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, Uint8** embed_levels)
{
BIDIGetVisualEmbedLevelsEx (log_font, glyphs, nr_glyphs, -1, embed_levels);
}
/** @} end of glyph */
/*
src/font/charset-bidi.c
+24 -18
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@@ -532,7 +532,8 @@ static void bidi_string_reverse (void* context, int len, int pos)
}
}
static void bidi_resolve_string (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len,
static void bidi_resolve_string (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel,
TYPERUN **ptype_rl_list, BYTE *pmax_level)
{
BYTE base_level = 0;
@@ -543,7 +544,13 @@ static void bidi_resolve_string (const CHARSETOPS* charset_ops, Glyph32* glyphs,
type_rl_list = get_runtype_link (charset_ops, glyphs, len);
/* 1.Find base level */
bidi_resolveParagraphs(&type_rl_list, &base_dir, &base_level);
if (pel != 0 && pel != 1) {
bidi_resolveParagraphs(&type_rl_list, &base_dir, &base_level);
}
else {
base_level = pel;
base_dir = BIDI_LEVEL_TO_DIR (base_level);
}
/* 2.Resolving Explicit levels.*/
bidi_resolveExplicit(&type_rl_list, base_dir);
@@ -590,8 +597,8 @@ static void bidi_reorder_cb (void* context, int len,
DBGLOG("\nReordering, Done\n");
}
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len,
Uint8* embedding_level_list, Uint8 type)
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel, Uint8* embedding_levels, Uint8 type)
{
int i = 0;
BYTE max_level = 1;
@@ -600,16 +607,16 @@ void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops, Glyph32*
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, &type_rl_list, &max_level);
bidi_resolve_string (charset_ops, glyphs, len, pel, &type_rl_list, &max_level);
/* type = 0, get the logical embedding level; else visual level.*/
for (pp = type_rl_list->next; pp->next; pp = pp->next){
int pos = POS (pp), len = LEN (pp);
for(i = 0; i < len; i++)
embedding_level_list[pos + i] = LEVEL(pp);
embedding_levels[pos + i] = LEVEL(pp);
}
if (type) {
bidi_reorder_cb(embedding_level_list, len, &type_rl_list, max_level,
bidi_reorder_cb(embedding_levels, len, &type_rl_list, max_level,
bidi_index_reverse);
}
@@ -619,8 +626,8 @@ void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops, Glyph32*
print_hexstr(glyphs, len, TRUE);
}
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs,
int len, GLYPHMAPINFO* map)
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, GLYPHMAPINFO* map, int pel)
{
BYTE max_level = 1;
TYPERUN *type_rl_list = NULL;
@@ -632,11 +639,9 @@ Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops, Glyph32*
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, &type_rl_list, &max_level);
bidi_resolve_string (charset_ops, glyphs, len, pel, &type_rl_list, &max_level);
for (node_p=type_rl_list->next; node_p->next;
node_p=node_p->next)
{
for (node_p=type_rl_list->next; node_p->next; node_p=node_p->next) {
run_pos = node_p->pos;
run_len = node_p->len;
@@ -657,8 +662,8 @@ Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops, Glyph32*
return glyphs;
}
Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs,
int len, int* index_map)
Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int* index_map, int pel)
{
BYTE max_level = 1;
TYPERUN *type_rl_list = NULL;
@@ -666,7 +671,7 @@ Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops, Glyph32
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, &type_rl_list, &max_level);
bidi_resolve_string (charset_ops, glyphs, len, pel, &type_rl_list, &max_level);
bidi_reorder_cb(index_map, len, &type_rl_list, max_level,
bidi_string_reverse);
@@ -679,7 +684,8 @@ Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops, Glyph32
return glyphs;
}
Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len)
Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel)
{
BYTE max_level = 1;
TYPERUN *type_rl_list = NULL;
@@ -687,7 +693,7 @@ Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops, Glyph3
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, &type_rl_list, &max_level);
bidi_resolve_string (charset_ops, glyphs, len, pel, &type_rl_list, &max_level);
bidi_reorder_cb (glyphs, len, &type_rl_list, max_level, bidi_string_reverse);
src/include/bidi.h
+10 -8
View File
@@ -68,18 +68,20 @@ typedef struct _BIDICHAR_MIRROR_MAP {
typedef void (*CB_DO_REORDER) (void* context, int len, int pos);
Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len);
Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel);
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs,
int len, GLYPHMAPINFO* map);
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, GLYPHMAPINFO* map, int pel);
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops, Glyph32* glyphs,
int len, Uint8* embedding_level_list, Uint8 type);
Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int* index_map, int pel);
Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops, Glyph32* glyphs,
int len, int* index_map);
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel, Uint8* embedding_levels, Uint8 type);
Uint32 __mg_charset_bidi_str_base_dir (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len);
Uint32 __mg_charset_bidi_str_base_dir (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len);
#ifdef __cplusplus
}
src/newgdi/bidi.c
+99 -130
View File
@@ -467,7 +467,8 @@ Glyph32* _gdi_bidi_reorder (PDC pdc, const unsigned char* text, int text_len,
if (mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type) {
logical_glyphs = _gdi_get_glyphs_string (pdc, text, text_len, nr_glyphs);
if (*nr_glyphs > 0)
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops, logical_glyphs, *nr_glyphs);
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
logical_glyphs, *nr_glyphs, -1);
}
return logical_glyphs;
@@ -866,7 +867,8 @@ int _gdi_reorder_text_break (PDC pdc, const unsigned char* text,
logical_glyphs = _gdi_get_glyphs_string_break(pdc, text, text_len,
&nr_glyphs, context);
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops, logical_glyphs, nr_glyphs);
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
logical_glyphs, nr_glyphs, -1);
if(!logical_glyphs)
return 0;
@@ -980,76 +982,6 @@ int GUIAPI BIDIGetTextLogicalGlyphs(
return i;
}
/* \bref: Get the visual glyph string and the glyphs map table, if
* caller not malloc space for glyphs or glyphs_map, it will malloc
* space inner.
*
* \param LOGFONT* log_font: The logical font.
* \param unsigned char* text: Input logical string, input.
* \param int text_len: Input logical string len, input.
* \param Glyph32** glyphs: visual glyph string, input/output.
* \param GLYPHMAPINFO* glyph_map: position mapping from Visual glyphs
* string to Logical text, output.
*
* \param return int : return visual glyph string len, output.
*/
int GUIAPI BIDIGetTextVisualGlyphs(
LOGFONT* log_font,
const char* text,
int text_len,
Glyph32** glyphs,
GLYPHMAPINFO** glyphs_map)
{
int nr_glyphs = 0;
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if(glyphs == NULL || glyphs_map == NULL)
return nr_glyphs;
nr_glyphs = BIDIGetTextLogicalGlyphs(log_font, text, text_len,
glyphs, glyphs_map);
if(mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type){
__mg_charset_bidi_map_reorder (mbc_devfont->charset_ops, *glyphs,
nr_glyphs, *glyphs_map);
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops, *glyphs, nr_glyphs);
}
return nr_glyphs;
}
/* bref: reorder the logical glyphs string to visual glyphs string.
* if glyphs_map not NULL, get the visual glyphs map info.
*
* \param LOGFONT* log_font: The logical font.
* \param Glyph32* glyphs: visual glyph string, Input.
* \param int nr_glyphs: glyph string len, Input.
* \param GLYPHMAPINFO* glyph_map: position mapping from logical glyphs.
* string to Logical text, output.
*
* \param Glyph32* : return visual glyph string, output.
*/
Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs(
LOGFONT* log_font,
Glyph32* glyphs,
int nr_glyphs,
GLYPHMAPINFO* glyphs_map)
{
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if (mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type) {
/* get the visual glyphs map from the logical glyphs map. */
if (glyphs_map) {
__mg_charset_bidi_map_reorder (mbc_devfont->charset_ops,
glyphs, nr_glyphs, glyphs_map);
}
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops, glyphs, nr_glyphs);
}
return glyphs;
}
/*
* \param HDC* hdc: The device context.
* \param Glyph32* glyph: Input glyph string, input.
@@ -1196,10 +1128,10 @@ static int* generate_ranges(PLOGFONT log_font, Glyph32* log_glyphs,
int* p = NULL;
int max_ranges = DEF_RANGES * 2;
GLYPHMAPINFO* v_map = NULL;
Uint8* embedding_level_list = NULL;
Uint8* embedding_levels = NULL;
BIDIGetLogicalEmbedLevels(log_font, log_glyphs,
nr_glyphs, &embedding_level_list);
BIDIGetLogicalEmbeddLevels(log_font, log_glyphs,
nr_glyphs, &embedding_levels);
/* get all the logical ranges in the same language.
* default malloc DEF_RANGES ranges.*/
@@ -1209,7 +1141,7 @@ static int* generate_ranges(PLOGFONT log_font, Glyph32* log_glyphs,
p[m++] = l_start_index;
for(i = l_start_index; i <= l_end_index; i++){
if((i+1) <= l_end_index
&& embedding_level_list[i] != embedding_level_list[i+1]){
&& embedding_levels[i] != embedding_levels[i+1]){
if(m > (max_ranges-2)) {
max_ranges += DEF_RANGES*2;
p = realloc(p, max_ranges * sizeof(int));
@@ -1227,8 +1159,7 @@ static int* generate_ranges(PLOGFONT log_font, Glyph32* log_glyphs,
}
v_map = l_map;
BIDILogGlyphs2VisGlyphs (log_font, log_glyphs,
nr_glyphs, v_map);
BIDILogGlyphs2VisGlyphs (log_font, log_glyphs, nr_glyphs, v_map);
*nr_ranges = m;
@@ -1242,7 +1173,7 @@ static int* generate_ranges(PLOGFONT log_font, Glyph32* log_glyphs,
}
}
free(embedding_level_list);
free(embedding_levels);
return p;
}
@@ -1348,8 +1279,7 @@ void GUIAPI GetTextRangesLog2VisTest(
&l_glyphs, &l_map);
v_map = l_map;
BIDILogGlyphs2VisGlyphs (log_font, l_glyphs,
nr_glyphs, v_map);
BIDILogGlyphs2VisGlyphs (log_font, l_glyphs, nr_glyphs, v_map);
/* get all the logical ranges in the same language.
* default malloc 5 ranges.*/
@@ -1495,69 +1425,108 @@ void GUIAPI BIDIGetTextRangesLog2Vis(LOGFONT* log_font,
free(l_glyphs);
}
/*
* bref: get the logical embedding levels for the logical glyph string
* and generate runs by embedding levels, then for reorder to get
* visual glyph string.
*
* \param LOGFONT* log_font: The logical font.
* \param Glyph32* glyphs: Input logical glyph string, input.
* \param int nr_glyphs: Input logical string len, input.
* \param Uint8** embedding_level_list: embedding level Logical, output.
*
* \param return void.
*/
void GUIAPI BIDIGetLogicalEmbedLevels(
LOGFONT* log_font,
Glyph32* glyphs,
int nr_glyphs,
Uint8** embedding_level_list)
int GUIAPI BIDIGetTextVisualGlyphs(LOGFONT* log_font,
const char* text, int text_len,
Glyph32** glyphs,
GLYPHMAPINFO** glyphs_map)
{
int i = 0;
int nr_glyphs = 0;
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if(*embedding_level_list == NULL)
*embedding_level_list = malloc(nr_glyphs * sizeof (Uint8));
if (glyphs == NULL || glyphs_map == NULL)
return nr_glyphs;
nr_glyphs = BIDIGetTextLogicalGlyphs(log_font, text, text_len,
glyphs, glyphs_map);
if (mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type){
__mg_charset_bidi_map_reorder (mbc_devfont->charset_ops, *glyphs,
nr_glyphs, *glyphs_map, -1);
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
*glyphs, nr_glyphs, -1);
}
return nr_glyphs;
}
BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyph_map, int pel)
{
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if (nr_glyphs > 0 && mbc_devfont
&& mbc_devfont->charset_ops->bidi_glyph_type) {
if (glyph_map) {
__mg_charset_bidi_map_reorder (mbc_devfont->charset_ops,
glyphs, nr_glyphs, glyph_map, pel);
}
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
glyphs, nr_glyphs, pel);
return TRUE;
}
return FALSE;
}
BOOL GUIAPI BIDIGetVisualGlyphIndexMap (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int** index_map, int pel)
{
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if (nr_glyphs > 0 && mbc_devfont
&& mbc_devfont->charset_ops->bidi_glyph_type) {
if (*index_map == NULL)
*index_map = malloc (nr_glyphs * sizeof (int));
if (*index_map) {
int i;
for (i = 0; i < nr_glyphs; i++) {
*index_map[i] = i;
}
__mg_charset_bidi_index_reorder (mbc_devfont->charset_ops,
glyphs, nr_glyphs, *index_map, pel);
return TRUE;
}
}
return FALSE;
}
void GUIAPI BIDIGetLogicalEmbedLevelsEx(LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel,
Uint8** embedding_levels)
{
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if (*embedding_levels == NULL)
*embedding_levels = malloc(nr_glyphs * sizeof (Uint8));
if (mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type) {
__mg_charset_bidi_get_embeddlevels (mbc_devfont->charset_ops, glyphs, nr_glyphs,
*embedding_level_list, 0);
__mg_charset_bidi_get_embeddlevels (mbc_devfont->charset_ops,
glyphs, nr_glyphs, pel, *embedding_levels, 0);
}
else{
for(i = 0; i < nr_glyphs; i++){
(*embedding_level_list)[i] = i;
}
else {
memset (*embedding_levels, 0, sizeof(Uint8) * nr_glyphs);
}
}
/*
* \param LOGFONT* log_font: The logical font.
* \param Glyph32* glyphs: Input logical glyph string, input.
* \param int nr_glyphs: Input logical string len, input.
* \param Uint8 *embedding_level_list: embedding level logical
* to visual, output.
*
* \param return void.
*/
void GUIAPI BIDIGetVisualEmbedLevels(
LOGFONT* log_font,
Glyph32* glyphs,
int nr_glyphs,
Uint8** embedding_level_list)
void GUIAPI BIDIGetVisualEmbedLevelsEx(LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel,
Uint8** embedding_levels)
{
int i = 0;
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if(*embedding_level_list == NULL)
*embedding_level_list = malloc(nr_glyphs * sizeof (Uint8));
if (*embedding_levels == NULL)
*embedding_levels = malloc(nr_glyphs * sizeof (Uint8));
if (mbc_devfont && mbc_devfont->charset_ops->bidi_glyph_type) {
__mg_charset_bidi_get_embeddlevels (mbc_devfont->charset_ops, glyphs, nr_glyphs,
*embedding_level_list, 1);
__mg_charset_bidi_get_embeddlevels (mbc_devfont->charset_ops,
glyphs, nr_glyphs, pel, *embedding_levels, 1);
}
else{
for(i = 0; i < nr_glyphs; i++){
(*embedding_level_list)[i] = i;
}
else {
memset (*embedding_levels, 0, sizeof(Uint8) * nr_glyphs);
}
}