#endif
-/*
-DWORD GetFontData(
- __in HDC hdc,
- __in DWORD dwTable,
- __in DWORD dwOffset,
- __out LPVOID lpvBuffer,
- __in DWORD cbData
+typedef HRESULT WINAPI (*SIOT) /*ScriptItemizeOpenType*/(
+ const WCHAR *pwcInChars,
+ int cInChars,
+ int cMaxItems,
+ const SCRIPT_CONTROL *psControl,
+ const SCRIPT_STATE *psState,
+ SCRIPT_ITEM *pItems,
+ OPENTYPE_TAG *pScriptTags,
+ int *pcItems
+);
+
+typedef HRESULT WINAPI (*SSOT) /*ScriptShapeOpenType*/(
+ HDC hdc,
+ SCRIPT_CACHE *psc,
+ SCRIPT_ANALYSIS *psa,
+ OPENTYPE_TAG tagScript,
+ OPENTYPE_TAG tagLangSys,
+ int *rcRangeChars,
+ TEXTRANGE_PROPERTIES **rpRangeProperties,
+ int cRanges,
+ const WCHAR *pwcChars,
+ int cChars,
+ int cMaxGlyphs,
+ WORD *pwLogClust,
+ SCRIPT_CHARPROP *pCharProps,
+ WORD *pwOutGlyphs,
+ SCRIPT_GLYPHPROP *pOutGlyphProps,
+ int *pcGlyphs
);
-*/
+
+typedef HRESULT WINAPI (*SPOT) /*ScriptPlaceOpenType*/(
+ HDC hdc,
+ SCRIPT_CACHE *psc,
+ SCRIPT_ANALYSIS *psa,
+ OPENTYPE_TAG tagScript,
+ OPENTYPE_TAG tagLangSys,
+ int *rcRangeChars,
+ TEXTRANGE_PROPERTIES **rpRangeProperties,
+ int cRanges,
+ const WCHAR *pwcChars,
+ WORD *pwLogClust,
+ SCRIPT_CHARPROP *pCharProps,
+ int cChars,
+ const WORD *pwGlyphs,
+ const SCRIPT_GLYPHPROP *pGlyphProps,
+ int cGlyphs,
+ int *piAdvance,
+ GOFFSET *pGoffset,
+ ABC *pABC
+);
+
+
+/* Fallback implementations. */
+
+static HRESULT WINAPI
+hb_ScriptItemizeOpenType(
+ const WCHAR *pwcInChars,
+ int cInChars,
+ int cMaxItems,
+ const SCRIPT_CONTROL *psControl,
+ const SCRIPT_STATE *psState,
+ SCRIPT_ITEM *pItems,
+ OPENTYPE_TAG *pScriptTags,
+ int *pcItems
+)
+{
+{
+ return ScriptItemize (pwcInChars,
+ cInChars,
+ cMaxItems,
+ psControl,
+ psState,
+ pItems,
+ pcItems);
+}
+}
+
+static HRESULT WINAPI
+hb_ScriptShapeOpenType(
+ HDC hdc,
+ SCRIPT_CACHE *psc,
+ SCRIPT_ANALYSIS *psa,
+ OPENTYPE_TAG tagScript,
+ OPENTYPE_TAG tagLangSys,
+ int *rcRangeChars,
+ TEXTRANGE_PROPERTIES **rpRangeProperties,
+ int cRanges,
+ const WCHAR *pwcChars,
+ int cChars,
+ int cMaxGlyphs,
+ WORD *pwLogClust,
+ SCRIPT_CHARPROP *pCharProps,
+ WORD *pwOutGlyphs,
+ SCRIPT_GLYPHPROP *pOutGlyphProps,
+ int *pcGlyphs
+)
+{
+ SCRIPT_VISATTR *psva = (SCRIPT_VISATTR *) pOutGlyphProps;
+ return ScriptShape (hdc,
+ psc,
+ pwcChars,
+ cChars,
+ cMaxGlyphs,
+ psa,
+ pwOutGlyphs,
+ pwLogClust,
+ psva,
+ pcGlyphs);
+}
+
+static HRESULT WINAPI
+hb_ScriptPlaceOpenType(
+ HDC hdc,
+ SCRIPT_CACHE *psc,
+ SCRIPT_ANALYSIS *psa,
+ OPENTYPE_TAG tagScript,
+ OPENTYPE_TAG tagLangSys,
+ int *rcRangeChars,
+ TEXTRANGE_PROPERTIES **rpRangeProperties,
+ int cRanges,
+ const WCHAR *pwcChars,
+ WORD *pwLogClust,
+ SCRIPT_CHARPROP *pCharProps,
+ int cChars,
+ const WORD *pwGlyphs,
+ const SCRIPT_GLYPHPROP *pGlyphProps,
+ int cGlyphs,
+ int *piAdvance,
+ GOFFSET *pGoffset,
+ ABC *pABC
+)
+{
+ SCRIPT_VISATTR *psva = (SCRIPT_VISATTR *) pGlyphProps;
+ return ScriptPlace (hdc,
+ psc,
+ pwGlyphs,
+ cGlyphs,
+ psva,
+ psa,
+ piAdvance,
+ pGoffset,
+ pABC);
+}
+
+
+struct hb_uniscribe_shaper_funcs_t {
+ SIOT ScriptItemizeOpenType;
+ SSOT ScriptShapeOpenType;
+ SPOT ScriptPlaceOpenType;
+
+ inline void init (void)
+ {
+ this->ScriptItemizeOpenType = NULL;
+ this->ScriptShapeOpenType = NULL;
+ this->ScriptPlaceOpenType = NULL;
+
+ HMODULE hinstLib = GetModuleHandle("usp10.dll");
+ if (hinstLib)
+ {
+ this->ScriptItemizeOpenType = (SIOT) GetProcAddress (hinstLib, "ScriptItemizeOpenType");
+ this->ScriptShapeOpenType = (SSOT) GetProcAddress (hinstLib, "ScriptShapeOpenType");
+ this->ScriptPlaceOpenType = (SPOT) GetProcAddress (hinstLib, "ScriptPlaceOpenType");
+ }
+ if (!this->ScriptItemizeOpenType ||
+ !this->ScriptShapeOpenType ||
+ !this->ScriptPlaceOpenType)
+ {
+ DEBUG_MSG (UNISCRIBE, NULL, "OpenType versions of functions not found; falling back.");
+ this->ScriptItemizeOpenType = hb_ScriptItemizeOpenType;
+ this->ScriptShapeOpenType = hb_ScriptShapeOpenType;
+ this->ScriptPlaceOpenType = hb_ScriptPlaceOpenType;
+ }
+ }
+};
+static hb_uniscribe_shaper_funcs_t *uniscribe_funcs;
+
+static inline void
+free_uniscribe_funcs (void)
+{
+ free (uniscribe_funcs);
+}
+
+
+static hb_uniscribe_shaper_funcs_t *
+hb_uniscribe_shaper_get_funcs (void)
+{
+retry:
+ hb_uniscribe_shaper_funcs_t *funcs = (hb_uniscribe_shaper_funcs_t *) hb_atomic_ptr_get (&uniscribe_funcs);
+
+ if (unlikely (!funcs))
+ {
+ funcs = (hb_uniscribe_shaper_funcs_t *) calloc (1, sizeof (hb_uniscribe_shaper_funcs_t));
+ if (unlikely (!funcs))
+ return NULL;
+
+ funcs->init ();
+
+ if (!hb_atomic_ptr_cmpexch (&uniscribe_funcs, NULL, funcs)) {
+ free (funcs);
+ goto retry;
+ }
+
+#ifdef HAVE_ATEXIT
+ atexit (free_uniscribe_funcs); /* First person registers atexit() callback. */
+#endif
+ }
+
+ return funcs;
+}
HB_SHAPER_DATA_ENSURE_DECLARE(uniscribe, face)
struct hb_uniscribe_shaper_face_data_t {
HANDLE fh;
+ hb_uniscribe_shaper_funcs_t *funcs;
};
hb_uniscribe_shaper_face_data_t *
if (unlikely (!data))
return NULL;
+ data->funcs = hb_uniscribe_shaper_get_funcs ();
+ if (unlikely (!data->funcs))
+ {
+ free (data);
+ return NULL;
+ }
+
hb_blob_t *blob = hb_face_reference_blob (face);
unsigned int blob_length;
const char *blob_data = hb_blob_get_data (blob, &blob_length);
hb_face_t *face = font->face;
hb_uniscribe_shaper_face_data_t *face_data = HB_SHAPER_DATA_GET (face);
hb_uniscribe_shaper_font_data_t *font_data = HB_SHAPER_DATA_GET (font);
+ hb_uniscribe_shaper_funcs_t *funcs = face_data->funcs;
#define FAIL(...) \
HB_STMT_START { \
ALLOCATE_ARRAY (WORD, glyphs, glyphs_size);
ALLOCATE_ARRAY (SCRIPT_GLYPHPROP, glyph_props, glyphs_size);
+ ALLOCATE_ARRAY (SCRIPT_VISATTR, vis_attr, glyphs_size);
ALLOCATE_ARRAY (int, advances, glyphs_size);
ALLOCATE_ARRAY (GOFFSET, offsets, glyphs_size);
ALLOCATE_ARRAY (uint32_t, vis_clusters, glyphs_size);
+ /* Note:
+ * We can't touch the contents of glyph_props. Our fallback
+ * implementations of Shape and Place functions use that buffer
+ * by casting it to a different type. It works because they
+ * both agree about it, but if we want to access it here we
+ * need address that issue first.
+ */
+
#undef ALLOCATE_ARRAY
#define MAX_ITEMS 256
bidi_state.uBidiLevel = HB_DIRECTION_IS_FORWARD (buffer->props.direction) ? 0 : 1;
bidi_state.fOverrideDirection = 1;
- hr = ScriptItemizeOpenType (wchars,
- chars_len,
- MAX_ITEMS,
- &bidi_control,
- &bidi_state,
- items,
- script_tags,
- &item_count);
+ hr = funcs->ScriptItemizeOpenType (wchars,
+ chars_len,
+ MAX_ITEMS,
+ &bidi_control,
+ &bidi_state,
+ items,
+ script_tags,
+ &item_count);
if (unlikely (FAILED (hr)))
FAIL ("ScriptItemizeOpenType() failed: 0x%08xL", hr);
unsigned int item_chars_len = items[i + 1].iCharPos - chars_offset;
retry_shape:
- hr = ScriptShapeOpenType (font_data->hdc,
- &font_data->script_cache,
- &items[i].a,
- script_tags[i],
- language_tag,
- range_char_counts,
- range_properties,
- range_count,
- wchars + chars_offset,
- item_chars_len,
- glyphs_size - glyphs_offset,
- /* out */
- log_clusters + chars_offset,
- char_props + chars_offset,
- glyphs + glyphs_offset,
- glyph_props + glyphs_offset,
- (int *) &glyphs_len);
+ hr = funcs->ScriptShapeOpenType (font_data->hdc,
+ &font_data->script_cache,
+ &items[i].a,
+ script_tags[i],
+ language_tag,
+ range_char_counts,
+ range_properties,
+ range_count,
+ wchars + chars_offset,
+ item_chars_len,
+ glyphs_size - glyphs_offset,
+ /* out */
+ log_clusters + chars_offset,
+ char_props + chars_offset,
+ glyphs + glyphs_offset,
+ glyph_props + glyphs_offset,
+ (int *) &glyphs_len);
if (unlikely (items[i].a.fNoGlyphIndex))
FAIL ("ScriptShapeOpenType() set fNoGlyphIndex");
for (unsigned int j = chars_offset; j < chars_offset + item_chars_len; j++)
log_clusters[j] += glyphs_offset;
- hr = ScriptPlaceOpenType (font_data->hdc,
- &font_data->script_cache,
- &items[i].a,
- script_tags[i],
- language_tag,
- range_char_counts,
- range_properties,
- range_count,
- wchars + chars_offset,
- log_clusters + chars_offset,
- char_props + chars_offset,
- item_chars_len,
- glyphs + glyphs_offset,
- glyph_props + glyphs_offset,
- glyphs_len,
- /* out */
- advances + glyphs_offset,
- offsets + glyphs_offset,
- NULL);
+ hr = funcs->ScriptPlaceOpenType (font_data->hdc,
+ &font_data->script_cache,
+ &items[i].a,
+ script_tags[i],
+ language_tag,
+ range_char_counts,
+ range_properties,
+ range_count,
+ wchars + chars_offset,
+ log_clusters + chars_offset,
+ char_props + chars_offset,
+ item_chars_len,
+ glyphs + glyphs_offset,
+ glyph_props + glyphs_offset,
+ glyphs_len,
+ /* out */
+ advances + glyphs_offset,
+ offsets + glyphs_offset,
+ NULL);
if (unlikely (FAILED (hr)))
FAIL ("ScriptPlaceOpenType() failed: 0x%08xL", hr);
projects / platform / upstream / libHarfBuzzSharp.git / commitdiff