| Index: third_party/harfbuzz-ng/src/hb-uniscribe.cc
|
| diff --git a/third_party/harfbuzz-ng/src/hb-uniscribe.cc b/third_party/harfbuzz-ng/src/hb-uniscribe.cc
|
| deleted file mode 100644
|
| index 74ae3a39481c89af2b26632bb6f426708bb58917..0000000000000000000000000000000000000000
|
| --- a/third_party/harfbuzz-ng/src/hb-uniscribe.cc
|
| +++ /dev/null
|
| @@ -1,1015 +0,0 @@
|
| -/*
|
| - * Copyright © 2011,2012,2013 Google, Inc.
|
| - *
|
| - * This is part of HarfBuzz, a text shaping library.
|
| - *
|
| - * Permission is hereby granted, without written agreement and without
|
| - * license or royalty fees, to use, copy, modify, and distribute this
|
| - * software and its documentation for any purpose, provided that the
|
| - * above copyright notice and the following two paragraphs appear in
|
| - * all copies of this software.
|
| - *
|
| - * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
|
| - * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
| - * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
|
| - * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
| - * DAMAGE.
|
| - *
|
| - * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
|
| - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
| - * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
|
| - * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
|
| - * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
|
| - *
|
| - * Google Author(s): Behdad Esfahbod
|
| - */
|
| -
|
| -#define HB_SHAPER uniscribe
|
| -#include "hb-shaper-impl-private.hh"
|
| -
|
| -#include <windows.h>
|
| -#include <usp10.h>
|
| -#include <rpc.h>
|
| -
|
| -#include "hb-uniscribe.h"
|
| -
|
| -#include "hb-open-file-private.hh"
|
| -#include "hb-ot-name-table.hh"
|
| -#include "hb-ot-tag.h"
|
| -
|
| -
|
| -#ifndef HB_DEBUG_UNISCRIBE
|
| -#define HB_DEBUG_UNISCRIBE (HB_DEBUG+0)
|
| -#endif
|
| -
|
| -
|
| -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)
|
| - {
|
| - HMODULE hinstLib;
|
| - this->ScriptItemizeOpenType = NULL;
|
| - this->ScriptShapeOpenType = NULL;
|
| - this->ScriptPlaceOpenType = NULL;
|
| -
|
| - hinstLib = GetModuleHandle (TEXT ("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 HB_USE_ATEXIT
|
| - atexit (free_uniscribe_funcs); /* First person registers atexit() callback. */
|
| -#endif
|
| - }
|
| -
|
| - return funcs;
|
| -}
|
| -
|
| -
|
| -struct active_feature_t {
|
| - OPENTYPE_FEATURE_RECORD rec;
|
| - unsigned int order;
|
| -
|
| - static int cmp (const active_feature_t *a, const active_feature_t *b) {
|
| - return a->rec.tagFeature < b->rec.tagFeature ? -1 : a->rec.tagFeature > b->rec.tagFeature ? 1 :
|
| - a->order < b->order ? -1 : a->order > b->order ? 1 :
|
| - a->rec.lParameter < b->rec.lParameter ? -1 : a->rec.lParameter > b->rec.lParameter ? 1 :
|
| - 0;
|
| - }
|
| - bool operator== (const active_feature_t *f) {
|
| - return cmp (this, f) == 0;
|
| - }
|
| -};
|
| -
|
| -struct feature_event_t {
|
| - unsigned int index;
|
| - bool start;
|
| - active_feature_t feature;
|
| -
|
| - static int cmp (const feature_event_t *a, const feature_event_t *b) {
|
| - return a->index < b->index ? -1 : a->index > b->index ? 1 :
|
| - a->start < b->start ? -1 : a->start > b->start ? 1 :
|
| - active_feature_t::cmp (&a->feature, &b->feature);
|
| - }
|
| -};
|
| -
|
| -struct range_record_t {
|
| - TEXTRANGE_PROPERTIES props;
|
| - unsigned int index_first; /* == start */
|
| - unsigned int index_last; /* == end - 1 */
|
| -};
|
| -
|
| -HB_SHAPER_DATA_ENSURE_DECLARE(uniscribe, face)
|
| -HB_SHAPER_DATA_ENSURE_DECLARE(uniscribe, font)
|
| -
|
| -
|
| -/*
|
| - * shaper face data
|
| - */
|
| -
|
| -struct hb_uniscribe_shaper_face_data_t {
|
| - HANDLE fh;
|
| - hb_uniscribe_shaper_funcs_t *funcs;
|
| - wchar_t face_name[LF_FACESIZE];
|
| -};
|
| -
|
| -/* face_name should point to a wchar_t[LF_FACESIZE] object. */
|
| -static void
|
| -_hb_generate_unique_face_name (wchar_t *face_name, unsigned int *plen)
|
| -{
|
| - /* We'll create a private name for the font from a UUID using a simple,
|
| - * somewhat base64-like encoding scheme */
|
| - const char *enc = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+-";
|
| - UUID id;
|
| - UuidCreate ((UUID*) &id);
|
| - ASSERT_STATIC (2 + 3 * (16/2) < LF_FACESIZE);
|
| - unsigned int name_str_len = 0;
|
| - face_name[name_str_len++] = 'F';
|
| - face_name[name_str_len++] = '_';
|
| - unsigned char *p = (unsigned char *) &id;
|
| - for (unsigned int i = 0; i < 16; i += 2)
|
| - {
|
| - /* Spread the 16 bits from two bytes of the UUID across three chars of face_name,
|
| - * using the bits in groups of 5,5,6 to select chars from enc.
|
| - * This will generate 24 characters; with the 'F_' prefix we already provided,
|
| - * the name will be 26 chars (plus the NUL terminator), so will always fit within
|
| - * face_name (LF_FACESIZE = 32). */
|
| - face_name[name_str_len++] = enc[p[i] >> 3];
|
| - face_name[name_str_len++] = enc[((p[i] << 2) | (p[i + 1] >> 6)) & 0x1f];
|
| - face_name[name_str_len++] = enc[p[i + 1] & 0x3f];
|
| - }
|
| - face_name[name_str_len] = 0;
|
| - if (plen)
|
| - *plen = name_str_len;
|
| -}
|
| -
|
| -/* Destroys blob. */
|
| -static hb_blob_t *
|
| -_hb_rename_font (hb_blob_t *blob, wchar_t *new_name)
|
| -{
|
| - /* Create a copy of the font data, with the 'name' table replaced by a
|
| - * table that names the font with our private F_* name created above.
|
| - * For simplicity, we just append a new 'name' table and update the
|
| - * sfnt directory; the original table is left in place, but unused.
|
| - *
|
| - * The new table will contain just 5 name IDs: family, style, unique,
|
| - * full, PS. All of them point to the same name data with our unique name.
|
| - */
|
| -
|
| - blob = OT::Sanitizer<OT::OpenTypeFontFile>::sanitize (blob);
|
| -
|
| - unsigned int length, new_length, name_str_len;
|
| - const char *orig_sfnt_data = hb_blob_get_data (blob, &length);
|
| -
|
| - _hb_generate_unique_face_name (new_name, &name_str_len);
|
| -
|
| - static const uint16_t name_IDs[] = { 1, 2, 3, 4, 6 };
|
| -
|
| - unsigned int name_table_length = OT::name::min_size +
|
| - ARRAY_LENGTH (name_IDs) * OT::NameRecord::static_size +
|
| - name_str_len * 2; /* for name data in UTF16BE form */
|
| - unsigned int name_table_offset = (length + 3) & ~3;
|
| -
|
| - new_length = name_table_offset + ((name_table_length + 3) & ~3);
|
| - void *new_sfnt_data = calloc (1, new_length);
|
| - if (!new_sfnt_data)
|
| - {
|
| - hb_blob_destroy (blob);
|
| - return NULL;
|
| - }
|
| -
|
| - memcpy(new_sfnt_data, orig_sfnt_data, length);
|
| -
|
| - OT::name &name = OT::StructAtOffset<OT::name> (new_sfnt_data, name_table_offset);
|
| - name.format.set (0);
|
| - name.count.set (ARRAY_LENGTH (name_IDs));
|
| - name.stringOffset.set (name.get_size ());
|
| - for (unsigned int i = 0; i < ARRAY_LENGTH (name_IDs); i++)
|
| - {
|
| - OT::NameRecord &record = name.nameRecord[i];
|
| - record.platformID.set (3);
|
| - record.encodingID.set (1);
|
| - record.languageID.set (0x0409u); /* English */
|
| - record.nameID.set (name_IDs[i]);
|
| - record.length.set (name_str_len * 2);
|
| - record.offset.set (0);
|
| - }
|
| -
|
| - /* Copy string data from new_name, converting wchar_t to UTF16BE. */
|
| - unsigned char *p = &OT::StructAfter<unsigned char> (name);
|
| - for (unsigned int i = 0; i < name_str_len; i++)
|
| - {
|
| - *p++ = new_name[i] >> 8;
|
| - *p++ = new_name[i] & 0xff;
|
| - }
|
| -
|
| - /* Adjust name table entry to point to new name table */
|
| - const OT::OpenTypeFontFile &file = * (OT::OpenTypeFontFile *) (new_sfnt_data);
|
| - unsigned int face_count = file.get_face_count ();
|
| - for (unsigned int face_index = 0; face_index < face_count; face_index++)
|
| - {
|
| - /* Note: doing multiple edits (ie. TTC) can be unsafe. There may be
|
| - * toe-stepping. But we don't really care. */
|
| - const OT::OpenTypeFontFace &face = file.get_face (face_index);
|
| - unsigned int index;
|
| - if (face.find_table_index (HB_OT_TAG_name, &index))
|
| - {
|
| - OT::TableRecord &record = const_cast<OT::TableRecord &> (face.get_table (index));
|
| - record.checkSum.set_for_data (&name, name_table_length);
|
| - record.offset.set (name_table_offset);
|
| - record.length.set (name_table_length);
|
| - }
|
| - else if (face_index == 0) /* Fail if first face doesn't have 'name' table. */
|
| - {
|
| - free (new_sfnt_data);
|
| - hb_blob_destroy (blob);
|
| - return NULL;
|
| - }
|
| - }
|
| -
|
| - /* The checkSumAdjustment field in the 'head' table is now wrong,
|
| - * but that doesn't actually seem to cause any problems so we don't
|
| - * bother. */
|
| -
|
| - hb_blob_destroy (blob);
|
| - return hb_blob_create ((const char *) new_sfnt_data, new_length,
|
| - HB_MEMORY_MODE_WRITABLE, NULL, free);
|
| -}
|
| -
|
| -hb_uniscribe_shaper_face_data_t *
|
| -_hb_uniscribe_shaper_face_data_create (hb_face_t *face)
|
| -{
|
| - hb_uniscribe_shaper_face_data_t *data = (hb_uniscribe_shaper_face_data_t *) calloc (1, sizeof (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);
|
| - if (unlikely (!hb_blob_get_length (blob)))
|
| - DEBUG_MSG (UNISCRIBE, face, "Face has empty blob");
|
| -
|
| - blob = _hb_rename_font (blob, data->face_name);
|
| - if (unlikely (!blob))
|
| - {
|
| - free (data);
|
| - return NULL;
|
| - }
|
| -
|
| - DWORD num_fonts_installed;
|
| - data->fh = AddFontMemResourceEx ((void *) hb_blob_get_data (blob, NULL),
|
| - hb_blob_get_length (blob),
|
| - 0, &num_fonts_installed);
|
| - if (unlikely (!data->fh))
|
| - {
|
| - DEBUG_MSG (UNISCRIBE, face, "Face AddFontMemResourceEx() failed");
|
| - free (data);
|
| - return NULL;
|
| - }
|
| -
|
| - return data;
|
| -}
|
| -
|
| -void
|
| -_hb_uniscribe_shaper_face_data_destroy (hb_uniscribe_shaper_face_data_t *data)
|
| -{
|
| - RemoveFontMemResourceEx (data->fh);
|
| - free (data);
|
| -}
|
| -
|
| -
|
| -/*
|
| - * shaper font data
|
| - */
|
| -
|
| -struct hb_uniscribe_shaper_font_data_t {
|
| - HDC hdc;
|
| - LOGFONTW log_font;
|
| - HFONT hfont;
|
| - SCRIPT_CACHE script_cache;
|
| -};
|
| -
|
| -static bool
|
| -populate_log_font (LOGFONTW *lf,
|
| - hb_font_t *font)
|
| -{
|
| - memset (lf, 0, sizeof (*lf));
|
| - lf->lfHeight = -font->y_scale;
|
| - lf->lfCharSet = DEFAULT_CHARSET;
|
| -
|
| - hb_face_t *face = font->face;
|
| - hb_uniscribe_shaper_face_data_t *face_data = HB_SHAPER_DATA_GET (face);
|
| -
|
| - memcpy (lf->lfFaceName, face_data->face_name, sizeof (lf->lfFaceName));
|
| -
|
| - return true;
|
| -}
|
| -
|
| -hb_uniscribe_shaper_font_data_t *
|
| -_hb_uniscribe_shaper_font_data_create (hb_font_t *font)
|
| -{
|
| - if (unlikely (!hb_uniscribe_shaper_face_data_ensure (font->face))) return NULL;
|
| -
|
| - hb_uniscribe_shaper_font_data_t *data = (hb_uniscribe_shaper_font_data_t *) calloc (1, sizeof (hb_uniscribe_shaper_font_data_t));
|
| - if (unlikely (!data))
|
| - return NULL;
|
| -
|
| - data->hdc = GetDC (NULL);
|
| -
|
| - if (unlikely (!populate_log_font (&data->log_font, font))) {
|
| - DEBUG_MSG (UNISCRIBE, font, "Font populate_log_font() failed");
|
| - _hb_uniscribe_shaper_font_data_destroy (data);
|
| - return NULL;
|
| - }
|
| -
|
| - data->hfont = CreateFontIndirectW (&data->log_font);
|
| - if (unlikely (!data->hfont)) {
|
| - DEBUG_MSG (UNISCRIBE, font, "Font CreateFontIndirectW() failed");
|
| - _hb_uniscribe_shaper_font_data_destroy (data);
|
| - return NULL;
|
| - }
|
| -
|
| - if (!SelectObject (data->hdc, data->hfont)) {
|
| - DEBUG_MSG (UNISCRIBE, font, "Font SelectObject() failed");
|
| - _hb_uniscribe_shaper_font_data_destroy (data);
|
| - return NULL;
|
| - }
|
| -
|
| - return data;
|
| -}
|
| -
|
| -void
|
| -_hb_uniscribe_shaper_font_data_destroy (hb_uniscribe_shaper_font_data_t *data)
|
| -{
|
| - if (data->hdc)
|
| - ReleaseDC (NULL, data->hdc);
|
| - if (data->hfont)
|
| - DeleteObject (data->hfont);
|
| - if (data->script_cache)
|
| - ScriptFreeCache (&data->script_cache);
|
| - free (data);
|
| -}
|
| -
|
| -LOGFONTW *
|
| -hb_uniscribe_font_get_logfontw (hb_font_t *font)
|
| -{
|
| - if (unlikely (!hb_uniscribe_shaper_font_data_ensure (font))) return NULL;
|
| - hb_uniscribe_shaper_font_data_t *font_data = HB_SHAPER_DATA_GET (font);
|
| - return &font_data->log_font;
|
| -}
|
| -
|
| -HFONT
|
| -hb_uniscribe_font_get_hfont (hb_font_t *font)
|
| -{
|
| - if (unlikely (!hb_uniscribe_shaper_font_data_ensure (font))) return NULL;
|
| - hb_uniscribe_shaper_font_data_t *font_data = HB_SHAPER_DATA_GET (font);
|
| - return font_data->hfont;
|
| -}
|
| -
|
| -
|
| -/*
|
| - * shaper shape_plan data
|
| - */
|
| -
|
| -struct hb_uniscribe_shaper_shape_plan_data_t {};
|
| -
|
| -hb_uniscribe_shaper_shape_plan_data_t *
|
| -_hb_uniscribe_shaper_shape_plan_data_create (hb_shape_plan_t *shape_plan HB_UNUSED,
|
| - const hb_feature_t *user_features HB_UNUSED,
|
| - unsigned int num_user_features HB_UNUSED)
|
| -{
|
| - return (hb_uniscribe_shaper_shape_plan_data_t *) HB_SHAPER_DATA_SUCCEEDED;
|
| -}
|
| -
|
| -void
|
| -_hb_uniscribe_shaper_shape_plan_data_destroy (hb_uniscribe_shaper_shape_plan_data_t *data HB_UNUSED)
|
| -{
|
| -}
|
| -
|
| -
|
| -/*
|
| - * shaper
|
| - */
|
| -
|
| -
|
| -hb_bool_t
|
| -_hb_uniscribe_shape (hb_shape_plan_t *shape_plan,
|
| - hb_font_t *font,
|
| - hb_buffer_t *buffer,
|
| - const hb_feature_t *features,
|
| - unsigned int num_features)
|
| -{
|
| - 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;
|
| -
|
| - /*
|
| - * Set up features.
|
| - */
|
| - hb_auto_array_t<OPENTYPE_FEATURE_RECORD> feature_records;
|
| - hb_auto_array_t<range_record_t> range_records;
|
| - if (num_features)
|
| - {
|
| - /* Sort features by start/end events. */
|
| - hb_auto_array_t<feature_event_t> feature_events;
|
| - for (unsigned int i = 0; i < num_features; i++)
|
| - {
|
| - active_feature_t feature;
|
| - feature.rec.tagFeature = hb_uint32_swap (features[i].tag);
|
| - feature.rec.lParameter = features[i].value;
|
| - feature.order = i;
|
| -
|
| - feature_event_t *event;
|
| -
|
| - event = feature_events.push ();
|
| - if (unlikely (!event))
|
| - goto fail_features;
|
| - event->index = features[i].start;
|
| - event->start = true;
|
| - event->feature = feature;
|
| -
|
| - event = feature_events.push ();
|
| - if (unlikely (!event))
|
| - goto fail_features;
|
| - event->index = features[i].end;
|
| - event->start = false;
|
| - event->feature = feature;
|
| - }
|
| - feature_events.qsort ();
|
| - /* Add a strategic final event. */
|
| - {
|
| - active_feature_t feature;
|
| - feature.rec.tagFeature = 0;
|
| - feature.rec.lParameter = 0;
|
| - feature.order = num_features + 1;
|
| -
|
| - feature_event_t *event = feature_events.push ();
|
| - if (unlikely (!event))
|
| - goto fail_features;
|
| - event->index = 0; /* This value does magic. */
|
| - event->start = false;
|
| - event->feature = feature;
|
| - }
|
| -
|
| - /* Scan events and save features for each range. */
|
| - hb_auto_array_t<active_feature_t> active_features;
|
| - unsigned int last_index = 0;
|
| - for (unsigned int i = 0; i < feature_events.len; i++)
|
| - {
|
| - feature_event_t *event = &feature_events[i];
|
| -
|
| - if (event->index != last_index)
|
| - {
|
| - /* Save a snapshot of active features and the range. */
|
| - range_record_t *range = range_records.push ();
|
| - if (unlikely (!range))
|
| - goto fail_features;
|
| -
|
| - unsigned int offset = feature_records.len;
|
| -
|
| - active_features.qsort ();
|
| - for (unsigned int j = 0; j < active_features.len; j++)
|
| - {
|
| - if (!j || active_features[j].rec.tagFeature != feature_records[feature_records.len - 1].tagFeature)
|
| - {
|
| - OPENTYPE_FEATURE_RECORD *feature = feature_records.push ();
|
| - if (unlikely (!feature))
|
| - goto fail_features;
|
| - *feature = active_features[j].rec;
|
| - }
|
| - else
|
| - {
|
| - /* Overrides value for existing feature. */
|
| - feature_records[feature_records.len - 1].lParameter = active_features[j].rec.lParameter;
|
| - }
|
| - }
|
| -
|
| - /* Will convert to pointer after all is ready, since feature_records.array
|
| - * may move as we grow it. */
|
| - range->props.potfRecords = reinterpret_cast<OPENTYPE_FEATURE_RECORD *> (offset);
|
| - range->props.cotfRecords = feature_records.len - offset;
|
| - range->index_first = last_index;
|
| - range->index_last = event->index - 1;
|
| -
|
| - last_index = event->index;
|
| - }
|
| -
|
| - if (event->start) {
|
| - active_feature_t *feature = active_features.push ();
|
| - if (unlikely (!feature))
|
| - goto fail_features;
|
| - *feature = event->feature;
|
| - } else {
|
| - active_feature_t *feature = active_features.find (&event->feature);
|
| - if (feature)
|
| - active_features.remove (feature - active_features.array);
|
| - }
|
| - }
|
| -
|
| - if (!range_records.len) /* No active feature found. */
|
| - goto fail_features;
|
| -
|
| - /* Fixup the pointers. */
|
| - for (unsigned int i = 0; i < range_records.len; i++)
|
| - {
|
| - range_record_t *range = &range_records[i];
|
| - range->props.potfRecords = feature_records.array + reinterpret_cast<uintptr_t> (range->props.potfRecords);
|
| - }
|
| - }
|
| - else
|
| - {
|
| - fail_features:
|
| - num_features = 0;
|
| - }
|
| -
|
| -#define FAIL(...) \
|
| - HB_STMT_START { \
|
| - DEBUG_MSG (UNISCRIBE, NULL, __VA_ARGS__); \
|
| - return false; \
|
| - } HB_STMT_END;
|
| -
|
| - HRESULT hr;
|
| -
|
| -retry:
|
| -
|
| - unsigned int scratch_size;
|
| - hb_buffer_t::scratch_buffer_t *scratch = buffer->get_scratch_buffer (&scratch_size);
|
| -
|
| -#define ALLOCATE_ARRAY(Type, name, len) \
|
| - Type *name = (Type *) scratch; \
|
| - { \
|
| - unsigned int _consumed = DIV_CEIL ((len) * sizeof (Type), sizeof (*scratch)); \
|
| - assert (_consumed <= scratch_size); \
|
| - scratch += _consumed; \
|
| - scratch_size -= _consumed; \
|
| - }
|
| -
|
| -#define utf16_index() var1.u32
|
| -
|
| - ALLOCATE_ARRAY (WCHAR, pchars, buffer->len * 2);
|
| -
|
| - unsigned int chars_len = 0;
|
| - for (unsigned int i = 0; i < buffer->len; i++)
|
| - {
|
| - hb_codepoint_t c = buffer->info[i].codepoint;
|
| - buffer->info[i].utf16_index() = chars_len;
|
| - if (likely (c <= 0xFFFFu))
|
| - pchars[chars_len++] = c;
|
| - else if (unlikely (c > 0x10FFFFu))
|
| - pchars[chars_len++] = 0xFFFDu;
|
| - else {
|
| - pchars[chars_len++] = 0xD800u + ((c - 0x10000u) >> 10);
|
| - pchars[chars_len++] = 0xDC00u + ((c - 0x10000u) & ((1 << 10) - 1));
|
| - }
|
| - }
|
| -
|
| - ALLOCATE_ARRAY (WORD, log_clusters, chars_len);
|
| - ALLOCATE_ARRAY (SCRIPT_CHARPROP, char_props, chars_len);
|
| -
|
| - if (num_features)
|
| - {
|
| - /* Need log_clusters to assign features. */
|
| - chars_len = 0;
|
| - for (unsigned int i = 0; i < buffer->len; i++)
|
| - {
|
| - hb_codepoint_t c = buffer->info[i].codepoint;
|
| - unsigned int cluster = buffer->info[i].cluster;
|
| - log_clusters[chars_len++] = cluster;
|
| - if (hb_in_range (c, 0x10000u, 0x10FFFFu))
|
| - log_clusters[chars_len++] = cluster; /* Surrogates. */
|
| - }
|
| - }
|
| -
|
| - /* The -2 in the following is to compensate for possible
|
| - * alignment needed after the WORD array. sizeof(WORD) == 2. */
|
| - unsigned int glyphs_size = (scratch_size * sizeof (int) - 2)
|
| - / (sizeof (WORD) +
|
| - sizeof (SCRIPT_GLYPHPROP) +
|
| - sizeof (int) +
|
| - sizeof (GOFFSET) +
|
| - sizeof (uint32_t));
|
| -
|
| - ALLOCATE_ARRAY (WORD, glyphs, glyphs_size);
|
| - ALLOCATE_ARRAY (SCRIPT_GLYPHPROP, glyph_props, 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
|
| -
|
| - SCRIPT_ITEM items[MAX_ITEMS + 1];
|
| - SCRIPT_CONTROL bidi_control = {0};
|
| - SCRIPT_STATE bidi_state = {0};
|
| - ULONG script_tags[MAX_ITEMS];
|
| - int item_count;
|
| -
|
| - /* MinGW32 doesn't define fMergeNeutralItems, so we bruteforce */
|
| - //bidi_control.fMergeNeutralItems = true;
|
| - *(uint32_t*)&bidi_control |= 1<<24;
|
| -
|
| - bidi_state.uBidiLevel = HB_DIRECTION_IS_FORWARD (buffer->props.direction) ? 0 : 1;
|
| - bidi_state.fOverrideDirection = 1;
|
| -
|
| - hr = funcs->ScriptItemizeOpenType (pchars,
|
| - chars_len,
|
| - MAX_ITEMS,
|
| - &bidi_control,
|
| - &bidi_state,
|
| - items,
|
| - script_tags,
|
| - &item_count);
|
| - if (unlikely (FAILED (hr)))
|
| - FAIL ("ScriptItemizeOpenType() failed: 0x%08xL", hr);
|
| -
|
| -#undef MAX_ITEMS
|
| -
|
| - OPENTYPE_TAG language_tag = hb_uint32_swap (hb_ot_tag_from_language (buffer->props.language));
|
| - hb_auto_array_t<TEXTRANGE_PROPERTIES*> range_properties;
|
| - hb_auto_array_t<int> range_char_counts;
|
| -
|
| - unsigned int glyphs_offset = 0;
|
| - unsigned int glyphs_len;
|
| - bool backward = HB_DIRECTION_IS_BACKWARD (buffer->props.direction);
|
| - for (unsigned int i = 0; i < item_count; i++)
|
| - {
|
| - unsigned int chars_offset = items[i].iCharPos;
|
| - unsigned int item_chars_len = items[i + 1].iCharPos - chars_offset;
|
| -
|
| - if (num_features)
|
| - {
|
| - range_properties.shrink (0);
|
| - range_char_counts.shrink (0);
|
| -
|
| - range_record_t *last_range = &range_records[0];
|
| -
|
| - for (unsigned int k = chars_offset; k < chars_offset + item_chars_len; k++)
|
| - {
|
| - range_record_t *range = last_range;
|
| - while (log_clusters[k] < range->index_first)
|
| - range--;
|
| - while (log_clusters[k] > range->index_last)
|
| - range++;
|
| - if (!range_properties.len ||
|
| - &range->props != range_properties[range_properties.len - 1])
|
| - {
|
| - TEXTRANGE_PROPERTIES **props = range_properties.push ();
|
| - int *c = range_char_counts.push ();
|
| - if (unlikely (!props || !c))
|
| - {
|
| - range_properties.shrink (0);
|
| - range_char_counts.shrink (0);
|
| - break;
|
| - }
|
| - *props = &range->props;
|
| - *c = 1;
|
| - }
|
| - else
|
| - {
|
| - range_char_counts[range_char_counts.len - 1]++;
|
| - }
|
| -
|
| - last_range = range;
|
| - }
|
| - }
|
| -
|
| - /* Asking for glyphs in logical order circumvents at least
|
| - * one bug in Uniscribe. */
|
| - items[i].a.fLogicalOrder = true;
|
| -
|
| - retry_shape:
|
| - hr = funcs->ScriptShapeOpenType (font_data->hdc,
|
| - &font_data->script_cache,
|
| - &items[i].a,
|
| - script_tags[i],
|
| - language_tag,
|
| - range_char_counts.array,
|
| - range_properties.array,
|
| - range_properties.len,
|
| - pchars + 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");
|
| - if (unlikely (hr == E_OUTOFMEMORY))
|
| - {
|
| - if (unlikely (!buffer->ensure (buffer->allocated * 2)))
|
| - FAIL ("Buffer resize failed");
|
| - goto retry;
|
| - }
|
| - if (unlikely (hr == USP_E_SCRIPT_NOT_IN_FONT))
|
| - {
|
| - if (items[i].a.eScript == SCRIPT_UNDEFINED)
|
| - FAIL ("ScriptShapeOpenType() failed: Font doesn't support script");
|
| - items[i].a.eScript = SCRIPT_UNDEFINED;
|
| - goto retry_shape;
|
| - }
|
| - if (unlikely (FAILED (hr)))
|
| - {
|
| - FAIL ("ScriptShapeOpenType() failed: 0x%08xL", hr);
|
| - }
|
| -
|
| - for (unsigned int j = chars_offset; j < chars_offset + item_chars_len; j++)
|
| - log_clusters[j] += glyphs_offset;
|
| -
|
| - hr = funcs->ScriptPlaceOpenType (font_data->hdc,
|
| - &font_data->script_cache,
|
| - &items[i].a,
|
| - script_tags[i],
|
| - language_tag,
|
| - range_char_counts.array,
|
| - range_properties.array,
|
| - range_properties.len,
|
| - pchars + 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);
|
| -
|
| - if (DEBUG_ENABLED (UNISCRIBE))
|
| - fprintf (stderr, "Item %d RTL %d LayoutRTL %d LogicalOrder %d ScriptTag %c%c%c%c\n",
|
| - i,
|
| - items[i].a.fRTL,
|
| - items[i].a.fLayoutRTL,
|
| - items[i].a.fLogicalOrder,
|
| - HB_UNTAG (hb_uint32_swap (script_tags[i])));
|
| -
|
| - glyphs_offset += glyphs_len;
|
| - }
|
| - glyphs_len = glyphs_offset;
|
| -
|
| - /* Ok, we've got everything we need, now compose output buffer,
|
| - * very, *very*, carefully! */
|
| -
|
| - /* Calculate visual-clusters. That's what we ship. */
|
| - for (unsigned int i = 0; i < glyphs_len; i++)
|
| - vis_clusters[i] = -1;
|
| - for (unsigned int i = 0; i < buffer->len; i++) {
|
| - uint32_t *p = &vis_clusters[log_clusters[buffer->info[i].utf16_index()]];
|
| - *p = MIN (*p, buffer->info[i].cluster);
|
| - }
|
| - for (unsigned int i = 1; i < glyphs_len; i++)
|
| - if (vis_clusters[i] == -1)
|
| - vis_clusters[i] = vis_clusters[i - 1];
|
| -
|
| -#undef utf16_index
|
| -
|
| - if (unlikely (!buffer->ensure (glyphs_len)))
|
| - FAIL ("Buffer in error");
|
| -
|
| -#undef FAIL
|
| -
|
| - /* Set glyph infos */
|
| - buffer->len = 0;
|
| - for (unsigned int i = 0; i < glyphs_len; i++)
|
| - {
|
| - hb_glyph_info_t *info = &buffer->info[buffer->len++];
|
| -
|
| - info->codepoint = glyphs[i];
|
| - info->cluster = vis_clusters[i];
|
| -
|
| - /* The rest is crap. Let's store position info there for now. */
|
| - info->mask = advances[i];
|
| - info->var1.u32 = offsets[i].du;
|
| - info->var2.u32 = offsets[i].dv;
|
| - }
|
| -
|
| - /* Set glyph positions */
|
| - buffer->clear_positions ();
|
| - for (unsigned int i = 0; i < glyphs_len; i++)
|
| - {
|
| - hb_glyph_info_t *info = &buffer->info[i];
|
| - hb_glyph_position_t *pos = &buffer->pos[i];
|
| -
|
| - /* TODO vertical */
|
| - pos->x_advance = info->mask;
|
| - pos->x_offset = backward ? -info->var1.u32 : info->var1.u32;
|
| - pos->y_offset = info->var2.u32;
|
| - }
|
| -
|
| - if (backward)
|
| - hb_buffer_reverse (buffer);
|
| -
|
| - /* Wow, done! */
|
| - return true;
|
| -}
|
| -
|
| -
|
|
|
Chromium Code Reviews
