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-rw-r--r--src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp23
-rw-r--r--src/3rdparty/harfbuzz/src/harfbuzz-shaper-private.h55
-rw-r--r--src/3rdparty/harfbuzz/tests/shaping/main.cpp165
3 files changed, 193 insertions, 50 deletions
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp b/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
index 3c9df93..4d8418b 100644
--- a/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
+++ b/src/3rdparty/harfbuzz/src/harfbuzz-indic.cpp
@@ -1107,6 +1107,7 @@ static inline void splitMatra(unsigned short *reordered, int matra, int &len)
#ifndef NO_OPENTYPE
static const HB_OpenTypeFeature indic_features[] = {
+ { HB_MAKE_TAG('l', 'o', 'c', 'a'), LocaProperty },
{ HB_MAKE_TAG('c', 'c', 'm', 'p'), CcmpProperty },
{ HB_MAKE_TAG('i', 'n', 'i', 't'), InitProperty },
{ HB_MAKE_TAG('n', 'u', 'k', 't'), NuktaProperty },
@@ -1115,12 +1116,14 @@ static const HB_OpenTypeFeature indic_features[] = {
{ HB_MAKE_TAG('b', 'l', 'w', 'f'), BelowFormProperty },
{ HB_MAKE_TAG('h', 'a', 'l', 'f'), HalfFormProperty },
{ HB_MAKE_TAG('p', 's', 't', 'f'), PostFormProperty },
+ { HB_MAKE_TAG('c', 'j', 'c', 't'), ConjunctFormProperty },
{ HB_MAKE_TAG('v', 'a', 't', 'u'), VattuProperty },
{ HB_MAKE_TAG('p', 'r', 'e', 's'), PreSubstProperty },
{ HB_MAKE_TAG('b', 'l', 'w', 's'), BelowSubstProperty },
{ HB_MAKE_TAG('a', 'b', 'v', 's'), AboveSubstProperty },
{ HB_MAKE_TAG('p', 's', 't', 's'), PostSubstProperty },
{ HB_MAKE_TAG('h', 'a', 'l', 'n'), HalantProperty },
+ { HB_MAKE_TAG('c', 'a', 'l', 't'), IndicCaltProperty },
{ 0, 0 }
};
#endif
@@ -1148,6 +1151,8 @@ static QString propertiesToString(int properties)
{
QString res;
properties = ~properties;
+ if (properties & LocaProperty)
+ res += "Loca ";
if (properties & CcmpProperty)
res += "Ccmp ";
if (properties & InitProperty)
@@ -1168,6 +1173,8 @@ static QString propertiesToString(int properties)
res += "HalfForm ";
if (properties & PostFormProperty)
res += "PostForm ";
+ if (properties & ConjunctFormProperty)
+ res += "PostForm ";
if (properties & VattuProperty)
res += "Vattu ";
if (properties & PreSubstProperty)
@@ -1182,6 +1189,8 @@ static QString propertiesToString(int properties)
res += "Halant ";
if (properties & CligProperty)
res += "Clig ";
+ if (properties & IndicCaltProperty)
+ res += "Calt ";
return res;
}
#endif
@@ -1296,10 +1305,15 @@ static bool indic_shape_syllable(HB_Bool openType, HB_ShaperItem *item, bool inv
}
int skipped = 0;
Position pos = Post;
- for (i = len-1; i > base; i--) {
+ for (i = len-1; i >= base; i--) {
if (position[i] != Consonant && (position[i] != Control || script == HB_Script_Kannada))
continue;
+ if (i < len-1 && position[i] == Control && position[i+1] == Consonant) {
+ base = i+1;
+ break;
+ }
+
Position charPosition = indic_position(uc[i]);
if (pos == Post && charPosition == Post) {
pos = Post;
@@ -1545,16 +1559,20 @@ static bool indic_shape_syllable(HB_Bool openType, HB_ShaperItem *item, bool inv
// features we should always apply
for (i = 0; i < len; ++i)
- properties[i] = ~(CcmpProperty
+ properties[i] = ~(LocaProperty
+ | CcmpProperty
| NuktaProperty
| VattuProperty
+ | ConjunctFormProperty
| PreSubstProperty
| BelowSubstProperty
| AboveSubstProperty
| PostSubstProperty
| HalantProperty
+ | IndicCaltProperty
| PositioningProperties);
+ // Loca always applies
// Ccmp always applies
// Init
if (item->item.pos == 0
@@ -1611,6 +1629,7 @@ static bool indic_shape_syllable(HB_Bool openType, HB_ShaperItem *item, bool inv
// abvs always applies
// psts always applies
// halant always applies
+ // calt always applies
#ifdef INDIC_DEBUG
// {
diff --git a/src/3rdparty/harfbuzz/src/harfbuzz-shaper-private.h b/src/3rdparty/harfbuzz/src/harfbuzz-shaper-private.h
index 80bccf8..2fce7df 100644
--- a/src/3rdparty/harfbuzz/src/harfbuzz-shaper-private.h
+++ b/src/3rdparty/harfbuzz/src/harfbuzz-shaper-private.h
@@ -57,34 +57,37 @@ typedef enum
} HB_CombiningClass;
typedef enum {
- CcmpProperty = 0x1,
- InitProperty = 0x2,
- IsolProperty = 0x4,
- FinaProperty = 0x8,
- MediProperty = 0x10,
- RligProperty = 0x20,
- CaltProperty = 0x40,
- LigaProperty = 0x80,
- DligProperty = 0x100,
- CswhProperty = 0x200,
- MsetProperty = 0x400,
+ LocaProperty = 0x1,
+ CcmpProperty = 0x2,
+ InitProperty = 0x4,
+ IsolProperty = 0x8,
+ FinaProperty = 0x10,
+ MediProperty = 0x20,
+ RligProperty = 0x40,
+ CaltProperty = 0x80,
+ LigaProperty = 0x100,
+ DligProperty = 0x200,
+ CswhProperty = 0x400,
+ MsetProperty = 0x800,
/* used by indic and myanmar shaper */
- NuktaProperty = 0x4,
- AkhantProperty = 0x8,
- RephProperty = 0x10,
- PreFormProperty = 0x20,
- BelowFormProperty = 0x40,
- AboveFormProperty = 0x80,
- HalfFormProperty = 0x100,
- PostFormProperty = 0x200,
- VattuProperty = 0x400,
- PreSubstProperty = 0x800,
- BelowSubstProperty = 0x1000,
- AboveSubstProperty = 0x2000,
- PostSubstProperty = 0x4000,
- HalantProperty = 0x8000,
- CligProperty = 0x10000
+ NuktaProperty = 0x8,
+ AkhantProperty = 0x10,
+ RephProperty = 0x20,
+ PreFormProperty = 0x40,
+ BelowFormProperty = 0x80,
+ AboveFormProperty = 0x100,
+ HalfFormProperty = 0x200,
+ PostFormProperty = 0x400,
+ ConjunctFormProperty = 0x800,
+ VattuProperty = 0x1000,
+ PreSubstProperty = 0x2000,
+ BelowSubstProperty = 0x4000,
+ AboveSubstProperty = 0x8000,
+ PostSubstProperty = 0x10000,
+ HalantProperty = 0x20000,
+ CligProperty = 0x40000,
+ IndicCaltProperty = 0x80000
} HB_OpenTypeProperty;
diff --git a/src/3rdparty/harfbuzz/tests/shaping/main.cpp b/src/3rdparty/harfbuzz/tests/shaping/main.cpp
index 827ac30..28f8e07 100644
--- a/src/3rdparty/harfbuzz/tests/shaping/main.cpp
+++ b/src/3rdparty/harfbuzz/tests/shaping/main.cpp
@@ -136,13 +136,13 @@ HB_Error hb_getPointInOutline(HB_Font font, HB_Glyph glyph, int flags, hb_uint32
return HB_Err_Ok;
}
-void hb_getGlyphMetrics(HB_Font font, HB_Glyph glyph, HB_GlyphMetrics *metrics)
+void hb_getGlyphMetrics(HB_Font, HB_Glyph, HB_GlyphMetrics *metrics)
{
// ###
metrics->x = metrics->y = metrics->width = metrics->height = metrics->xOffset = metrics->yOffset = 0;
}
-HB_Fixed hb_getFontMetric(HB_Font font, HB_FontMetric metric)
+HB_Fixed hb_getFontMetric(HB_Font, HB_FontMetric )
{
return 0; // ####
}
@@ -169,6 +169,8 @@ public slots:
void initTestCase();
void cleanupTestCase();
private slots:
+ void greek();
+
void devanagari();
void bengali();
void gurmukhi();
@@ -203,18 +205,25 @@ void tst_QScriptEngine::cleanupTestCase()
FT_Done_FreeType(freetype);
}
-struct ShapeTable {
- unsigned short unicode[16];
- unsigned short glyphs[16];
+class Shaper
+{
+public:
+ Shaper(FT_Face face, HB_Script script, const QString &str);
+
+ HB_FontRec hbFont;
+ HB_ShaperItem shaper_item;
+ QVarLengthArray<HB_Glyph> hb_glyphs;
+ QVarLengthArray<HB_GlyphAttributes> hb_attributes;
+ QVarLengthArray<HB_Fixed> hb_advances;
+ QVarLengthArray<HB_FixedPoint> hb_offsets;
+ QVarLengthArray<unsigned short> hb_logClusters;
+
};
-static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
+Shaper::Shaper(FT_Face face, HB_Script script, const QString &str)
{
- QString str = QString::fromUtf16( s->unicode );
-
HB_Face hbFace = HB_NewFace(face, hb_getSFntTable);
- HB_FontRec hbFont;
hbFont.klass = &hb_fontClass;
hbFont.userData = face;
hbFont.x_ppem = face->size->metrics.x_ppem;
@@ -222,7 +231,6 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
hbFont.x_scale = face->size->metrics.x_scale;
hbFont.y_scale = face->size->metrics.y_scale;
- HB_ShaperItem shaper_item;
shaper_item.kerning_applied = false;
shaper_item.string = reinterpret_cast<const HB_UChar16 *>(str.constData());
shaper_item.stringLength = str.length();
@@ -237,11 +245,6 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
shaper_item.glyphIndicesPresent = false;
shaper_item.initialGlyphCount = 0;
- QVarLengthArray<HB_Glyph> hb_glyphs(shaper_item.num_glyphs);
- QVarLengthArray<HB_GlyphAttributes> hb_attributes(shaper_item.num_glyphs);
- QVarLengthArray<HB_Fixed> hb_advances(shaper_item.num_glyphs);
- QVarLengthArray<HB_FixedPoint> hb_offsets(shaper_item.num_glyphs);
- QVarLengthArray<unsigned short> hb_logClusters(shaper_item.num_glyphs);
while (1) {
hb_glyphs.resize(shaper_item.num_glyphs);
@@ -263,10 +266,66 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
if (HB_ShapeItem(&shaper_item))
break;
-
}
HB_FreeFace(hbFace);
+}
+
+
+static bool decomposedShaping(FT_Face face, HB_Script script, const QChar &ch)
+{
+ QString uc = QString().append(ch);
+ Shaper shaper(face, script, uc);
+
+ uc = uc.normalized(QString::NormalizationForm_D);
+ Shaper decomposed(face, script, uc);
+
+ if( shaper.shaper_item.num_glyphs != decomposed.shaper_item.num_glyphs )
+ goto error;
+
+ for (unsigned int i = 0; i < shaper.shaper_item.num_glyphs; ++i) {
+ if ((shaper.shaper_item.glyphs[i]&0xffffff) != (decomposed.shaper_item.glyphs[i]&0xffffff))
+ goto error;
+ }
+ return true;
+ error:
+ QString str = "";
+ int i = 0;
+ while (i < uc.length()) {
+ str += QString("%1 ").arg(uc[i].unicode(), 4, 16);
+ ++i;
+ }
+ qDebug("%s: decomposedShaping of char %4x failed\n decomposedString: %s\n nglyphs=%d, decomposed nglyphs %d",
+ face->family_name,
+ ch.unicode(), str.toLatin1().data(),
+ shaper.shaper_item.num_glyphs,
+ decomposed.shaper_item.num_glyphs);
+
+ str = "";
+ i = 0;
+ while (i < shaper.shaper_item.num_glyphs) {
+ str += QString("%1 ").arg(shaper.shaper_item.glyphs[i], 4, 16);
+ ++i;
+ }
+ qDebug(" composed glyph result = %s", str.toLatin1().constData());
+ str = "";
+ i = 0;
+ while (i < decomposed.shaper_item.num_glyphs) {
+ str += QString("%1 ").arg(decomposed.shaper_item.glyphs[i], 4, 16);
+ ++i;
+ }
+ qDebug(" decomposed glyph result = %s", str.toLatin1().constData());
+ return false;
+}
+
+struct ShapeTable {
+ unsigned short unicode[16];
+ unsigned short glyphs[16];
+};
+
+static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
+{
+ Shaper shaper(face, script, QString::fromUtf16( s->unicode ));
hb_uint32 nglyphs = 0;
const unsigned short *g = s->glyphs;
@@ -275,16 +334,16 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
g++;
}
- if( nglyphs != shaper_item.num_glyphs )
+ if( nglyphs != shaper.shaper_item.num_glyphs )
goto error;
for (hb_uint32 i = 0; i < nglyphs; ++i) {
- if ((shaper_item.glyphs[i]&0xffffff) != s->glyphs[i])
+ if ((shaper.shaper_item.glyphs[i]&0xffffff) != s->glyphs[i])
goto error;
}
return true;
error:
- str = "";
+ QString str = "";
const unsigned short *uc = s->unicode;
while (*uc) {
str += QString("%1 ").arg(*uc, 4, 16);
@@ -293,18 +352,78 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
qDebug("%s: shaping of string %s failed, nglyphs=%d, expected %d",
face->family_name,
str.toLatin1().constData(),
- shaper_item.num_glyphs, nglyphs);
+ shaper.shaper_item.num_glyphs, nglyphs);
str = "";
hb_uint32 i = 0;
- while (i < shaper_item.num_glyphs) {
- str += QString("%1 ").arg(shaper_item.glyphs[i], 4, 16);
+ while (i < shaper.shaper_item.num_glyphs) {
+ str += QString("%1 ").arg(shaper.shaper_item.glyphs[i], 4, 16);
++i;
}
qDebug(" glyph result = %s", str.toLatin1().constData());
return false;
}
+
+void tst_QScriptEngine::greek()
+{
+ FT_Face face = loadFace("DejaVuSans.ttf");
+ if (face) {
+ for (int uc = 0x1f00; uc <= 0x1fff; ++uc) {
+ QString str;
+ str.append(uc);
+ if (str.normalized(QString::NormalizationForm_D).normalized(QString::NormalizationForm_C) != str) {
+ //qDebug() << "skipping" << hex << uc;
+ continue;
+ }
+ if (uc == 0x1fc1 || uc == 0x1fed)
+ continue;
+ QVERIFY( decomposedShaping(face, HB_Script_Greek, QChar(uc)) );
+ }
+ FT_Done_Face(face);
+ } else {
+ QSKIP("couln't find DejaVu Sans", SkipAll);
+ }
+
+
+ face = loadFace("SBL_grk.ttf");
+ if (face) {
+ for (int uc = 0x1f00; uc <= 0x1fff; ++uc) {
+ QString str;
+ str.append(uc);
+ if (str.normalized(QString::NormalizationForm_D).normalized(QString::NormalizationForm_C) != str) {
+ //qDebug() << "skipping" << hex << uc;
+ continue;
+ }
+ if (uc == 0x1fc1 || uc == 0x1fed)
+ continue;
+ QVERIFY( decomposedShaping(face, HB_Script_Greek, QChar(uc)) );
+
+ }
+
+ const ShapeTable shape_table [] = {
+ { { 0x3b1, 0x300, 0x313, 0x0 },
+ { 0xb8, 0x3d3, 0x3c7, 0x0 } },
+ { { 0x3b1, 0x313, 0x300, 0x0 },
+ { 0xd4, 0x0 } },
+
+ { {0}, {0} }
+ };
+
+
+ const ShapeTable *s = shape_table;
+ while (s->unicode[0]) {
+ QVERIFY( shaping(face, s, HB_Script_Greek) );
+ ++s;
+ }
+
+ FT_Done_Face(face);
+ } else {
+ QSKIP("couln't find DejaVu Sans", SkipAll);
+ }
+}
+
+
void tst_QScriptEngine::devanagari()
{
{
@@ -1011,6 +1130,8 @@ void tst_QScriptEngine::malayalam()
{ 0x3f8, 0x0 } },
{ { 0xd2f, 0xd4d, 0xd15, 0xd4d, 0xd15, 0xd41, 0x0 },
{ 0x2ff, 0x0 } },
+ { { 0xd30, 0xd4d, 0x200d, 0xd35, 0xd4d, 0xd35, 0x0 },
+ { 0xf3, 0x350, 0x0 } },
{ {0}, {0} }
};
generated by cgit v0.12 at 2024-11-15 22:28:13 (GMT)