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-rw-r--r--src/3rdparty/harfbuzz/tests/shaping/main.cpp127
1 files changed, 105 insertions, 22 deletions
diff --git a/src/3rdparty/harfbuzz/tests/shaping/main.cpp b/src/3rdparty/harfbuzz/tests/shaping/main.cpp
index 827ac30..b48b0a9 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 +266,68 @@ static bool shaping(FT_Face face, const ShapeTable *s, HB_Script script)
if (HB_ShapeItem(&shaper_item))
break;
-
}
HB_FreeFace(hbFace);
+}
+
+
+#if defined(Q_WS_X11)
+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;
+}
+#endif
+
+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 +336,16 @@ 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 +354,40 @@ 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)) );
+ }
+ } else {
+ QSKIP("couln't find DejaVu Sans", SkipAll);
+ }
+}
+
+
void tst_QScriptEngine::devanagari()
{
{
generated by cgit v0.12 at 2024-11-12 01:36:00 (GMT)