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tune BIDILogGlyphs2VisGlyphsEx and BIDILogGlyphs2VisGlyphs

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This commit is contained in:
Vincent Wei
2019-02-17 12:56:35 +08:00
parent 93aae6782e
commit e3f2cc22ec
4 changed files with 164 additions and 131 deletions
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include/gdi.h
+49 -49
View File
@@ -11104,64 +11104,64 @@ MG_EXPORT int GUIAPI BIDIGetTextVisualGlyphs (LOGFONT* log_font,
const char* text, int text_len, Glyph32** glyphs,
GLYPHMAPINFO** glyphs_map);
/** \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.
/*
* \var typedef void (*CB_REVERSE_EXTRA) (void* extra, int len, int pos)
* \brief The prototype of the user defined function to reverse an array.
*
* 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.
* The function reverse an array pointed by \a extra from the position
* specified by \a pos for the length specified by \a len.
*
* \sa BIDILogGlyphs2VisGlyphsEx
*/
typedef void (*CB_REVERSE_EXTRA) (void* extra, int len, int pos);
/** \fn BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
* Glyph32* glyphs, int nr_glyphs, int pel,
* void* extra, CB_REVERSE_EXTRA cb_reverse_extra)
* \brief Reorder the specified logical glyph string in visual order and
* reorder an extra array to reflect the visule order of the glyphs.
*
* This function reorders the logical glyph string in place to visual order.
* If \a extra and \a cb_reverse_extra are both not NULL, it also reorders
* the array pointed by \a extra by calling the callback function
* \a cb_reverse_extra.
*
* \param log_font The logical font.
* \param glyphs The pointer to the 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 extra The pointer to the extra array to reorder; can be NULL.
* \param cb_reverse_extra The callback function to reverse the extra array.
*
* \return TRUE on success, otherwise FALSE.
*/
MG_EXPORT BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel,
void* extra, CB_REVERSE_EXTRA cb_reverse_extra);
/** \fn BOOL GUIAPI BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
* Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyphs_map)
* \brief Reorder the specified logical glyph string in visual order and
* reorder glyph map if specified.
*
* This function reorders the logical glyph string in place to visual order.
* If \a glyphs_map is not NULL, it also reorders
* the map to reflect the visual order.
*
* \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 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 TRUE on success, otherwise FALSE.
* \return The pointer to the visual glyphs; NULL when error.
*/
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);
MG_EXPORT Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyphs_map);
/**
* \fn void GUIAPI BIDIGetLogicalEmbedLevelsEx (LOGFONT* log_font, \
src/font/charset-bidi.c
+79 -49
View File
@@ -491,47 +491,11 @@ bidi_resolveMirrorChar (const CHARSETOPS* charset_ops, Glyph32* glyphs, int len,
glyphs[i] = mirrored_ch;
}
}
}
}
DBGLOG (" Mirroring, Done\n");
}
static void bidi_map_reverse (void* context, int len, int pos)
{
GLYPHMAPINFO* str = (GLYPHMAPINFO*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
GLYPHMAPINFO tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
static void bidi_index_reverse (void* context, int len, int pos)
{
char* str = (char*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
char tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
static void bidi_string_reverse (void* context, int len, int pos)
{
Glyph32* str = (Glyph32*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
Glyph32 tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
static void bidi_resolve_string (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel,
TYPERUN **ptype_rl_list, BYTE *pmax_level)
@@ -570,8 +534,26 @@ static void bidi_resolve_string (const CHARSETOPS* charset_ops,
*ptype_rl_list = type_rl_list;
}
static void bidi_reorder_cb (void* context, int len,
TYPERUN **ptype_rl_list, BYTE max_level, CB_DO_REORDER cb)
typedef struct _REORDER_CONTEXT {
Glyph32* glyphs;
void* extra;
CB_REVERSE_EXTRA cb;
} REORDER_CONTEXT;
static void bidi_reverse_glyphs (Glyph32* glyphs, int len, int pos)
{
int i;
Glyph32* gs = glyphs + pos;
for (i = 0; i < len / 2; i++) {
Glyph32 tmp = gs[i];
gs[i] = gs[len - 1 - i];
gs[len - 1 - i] = tmp;
}
}
static void bidi_reorder (REORDER_CONTEXT* context, int len,
TYPERUN **ptype_rl_list, BYTE max_level)
{
int i = 0;
TYPERUN *type_rl_list = *ptype_rl_list, *pp = NULL;
@@ -590,13 +572,32 @@ static void bidi_reorder_cb (void* context, int len,
pp1 = pp1->next;
}
pp = pp1->prev;
cb(context, len, pos);
if (context->glyphs) {
bidi_reverse_glyphs(context->glyphs, len, pos);
}
if (context->extra && context->cb) {
context->cb(context->extra, len, pos);
}
}
}
}
DBGLOG("\nReordering, Done\n");
}
static void bidi_reverse_chars (void* context, int len, int pos)
{
char* str = (char*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
char tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel, Uint8* embedding_levels, Uint8 type)
{
@@ -607,7 +608,8 @@ void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, pel, &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){
@@ -615,9 +617,14 @@ void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
for(i = 0; i < len; i++)
embedding_levels[pos + i] = LEVEL(pp);
}
if (type) {
bidi_reorder_cb(embedding_levels, len, &type_rl_list, max_level,
bidi_index_reverse);
REORDER_CONTEXT rc;
rc.glyphs = NULL;
rc.extra = embedding_levels;
rc.cb = bidi_reverse_chars;
bidi_reorder(&rc, len, &type_rl_list, max_level);
}
/* free typerun list.*/
@@ -626,6 +633,19 @@ void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
print_hexstr(glyphs, len, TRUE);
}
#if 0
static void bidi_map_reverse (void* context, int len, int pos)
{
GLYPHMAPINFO* str = (GLYPHMAPINFO*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
GLYPHMAPINFO tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, GLYPHMAPINFO* map, int pel)
{
@@ -683,19 +703,26 @@ Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops,
return glyphs;
}
#endif
Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel)
Glyph32* glyphs, int len, int pel,
void* extra, CB_REVERSE_EXTRA cb_reverse_extra)
{
BYTE max_level = 1;
TYPERUN *type_rl_list = NULL;
REORDER_CONTEXT rc;
print_hexstr(glyphs, len, FALSE);
/* W1~W7, N1~N2, I1~I2, Get the Embedding Level. */
bidi_resolve_string (charset_ops, glyphs, len, pel, &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);
rc.glyphs = glyphs;
rc.extra = extra;
rc.cb = cb_reverse_extra;
bidi_reorder (&rc, len, &type_rl_list, max_level);
/* free typerun list.*/
free_typerun_list (type_rl_list);
@@ -705,7 +732,8 @@ Glyph32* __mg_charset_bidi_glyphs_reorder (const CHARSETOPS* charset_ops,
return glyphs;
}
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)
{
BYTE base_level = 0;
Uint32 base_dir = BIDI_TYPE_L;
@@ -723,11 +751,13 @@ Uint32 __mg_charset_bidi_str_base_dir (const CHARSETOPS* charset_ops, Glyph32* g
return base_dir;
}
BOOL GetGlyphBIDIType (LOGFONT* log_font, Glyph32 glyph_value, Uint32 *bidi_type)
BOOL GetGlyphBIDIType (LOGFONT* log_font, Glyph32 glyph_value,
Uint32 *bidi_type)
{
DEVFONT* mbc_devfont = log_font->mbc_devfont;
if (mbc_devfont == NULL || mbc_devfont->charset_ops->bidi_glyph_type == NULL)
if (mbc_devfont == NULL ||
mbc_devfont->charset_ops->bidi_glyph_type == NULL)
return FALSE;
*bidi_type = mbc_devfont->charset_ops->bidi_glyph_type (glyph_value);
src/include/bidi.h
+4 -3
View File
@@ -66,16 +66,17 @@ typedef struct _BIDICHAR_MIRROR_MAP {
Glyph32 mirrored;
} 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, int pel);
Glyph32* glyphs, int len, int pel,
void* extra, CB_REVERSE_EXTRA cb_reverse_extra);
/*
Glyph32* __mg_charset_bidi_map_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, GLYPHMAPINFO* map, int pel);
Glyph32* __mg_charset_bidi_index_reorder (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int* index_map, int pel);
*/
void __mg_charset_bidi_get_embeddlevels (const CHARSETOPS* charset_ops,
Glyph32* glyphs, int len, int pel, Uint8* embedding_levels, Uint8 type);
src/newgdi/bidi.c
+32 -30
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@@ -468,7 +468,7 @@ Glyph32* _gdi_bidi_reorder (PDC pdc, const unsigned char* text, int text_len,
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, -1);
logical_glyphs, *nr_glyphs, -1, NULL, NULL);
}
return logical_glyphs;
@@ -868,7 +868,7 @@ 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, -1);
logical_glyphs, nr_glyphs, -1, NULL, NULL);
if(!logical_glyphs)
return 0;
@@ -1425,6 +1425,18 @@ void GUIAPI BIDIGetTextRangesLog2Vis(LOGFONT* log_font,
free(l_glyphs);
}
static void bidi_reverse_map (void* context, int len, int pos)
{
GLYPHMAPINFO* str = (GLYPHMAPINFO*)context + pos;
int i;
for (i = 0; i < len / 2; i++)
{
GLYPHMAPINFO tmp = str[i];
str[i] = str[len - 1 - i];
str[len - 1 - i] = tmp;
}
}
int GUIAPI BIDIGetTextVisualGlyphs(LOGFONT* log_font,
const char* text, int text_len,
Glyph32** glyphs,
@@ -1439,56 +1451,46 @@ int GUIAPI BIDIGetTextVisualGlyphs(LOGFONT* log_font,
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);
if (nr_glyphs > 0 && mbc_devfont
&& mbc_devfont->charset_ops->bidi_glyph_type) {
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
*glyphs, nr_glyphs, -1);
*glyphs, nr_glyphs, -1,
*glyphs_map, bidi_reverse_map);
}
return nr_glyphs;
}
BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyph_map, int pel)
Glyph32* GUIAPI BIDILogGlyphs2VisGlyphs(LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, GLYPHMAPINFO* glyphs_map)
{
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);
glyphs, nr_glyphs, -1,
glyphs_map, bidi_reverse_map);
return TRUE;
return glyphs;
}
return FALSE;
return NULL;
}
BOOL GUIAPI BIDIGetVisualGlyphIndexMap (LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int** index_map, int pel)
BOOL GUIAPI BIDILogGlyphs2VisGlyphsEx(LOGFONT* log_font,
Glyph32* glyphs, int nr_glyphs, int pel,
void* extra, CB_REVERSE_EXTRA cb_reorder_extra)
{
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));
__mg_charset_bidi_glyphs_reorder (mbc_devfont->charset_ops,
glyphs, nr_glyphs, pel,
extra, cb_reorder_extra);
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 TRUE;
}
return FALSE;