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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-0.9.21/src/hb-old.cc')
-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-0.9.21/src/hb-old.cc410
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diff --git a/Build/source/libs/harfbuzz/harfbuzz-0.9.21/src/hb-old.cc b/Build/source/libs/harfbuzz/harfbuzz-0.9.21/src/hb-old.cc
deleted file mode 100644
index a7ea8ed9bbe..00000000000
--- a/Build/source/libs/harfbuzz/harfbuzz-0.9.21/src/hb-old.cc
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright © 2012 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 old
-#define hb_old_shaper_face_data_t HB_FaceRec_
-#define hb_old_shaper_font_data_t HB_Font_
-#include "hb-shaper-impl-private.hh"
-
-#include <harfbuzz.h>
-
-
-#ifndef HB_DEBUG_OLD
-#define HB_DEBUG_OLD (HB_DEBUG+0)
-#endif
-
-
-static HB_Script
-hb_old_script_from_script (hb_script_t script)
-{
- switch ((hb_tag_t) script)
- {
- default:
- case HB_SCRIPT_COMMON: return HB_Script_Common;
- case HB_SCRIPT_GREEK: return HB_Script_Greek;
- case HB_SCRIPT_CYRILLIC: return HB_Script_Cyrillic;
- case HB_SCRIPT_ARMENIAN: return HB_Script_Armenian;
- case HB_SCRIPT_HEBREW: return HB_Script_Hebrew;
- case HB_SCRIPT_ARABIC: return HB_Script_Arabic;
- case HB_SCRIPT_SYRIAC: return HB_Script_Syriac;
- case HB_SCRIPT_THAANA: return HB_Script_Thaana;
- case HB_SCRIPT_DEVANAGARI: return HB_Script_Devanagari;
- case HB_SCRIPT_BENGALI: return HB_Script_Bengali;
- case HB_SCRIPT_GURMUKHI: return HB_Script_Gurmukhi;
- case HB_SCRIPT_GUJARATI: return HB_Script_Gujarati;
- case HB_SCRIPT_ORIYA: return HB_Script_Oriya;
- case HB_SCRIPT_TAMIL: return HB_Script_Tamil;
- case HB_SCRIPT_TELUGU: return HB_Script_Telugu;
- case HB_SCRIPT_KANNADA: return HB_Script_Kannada;
- case HB_SCRIPT_MALAYALAM: return HB_Script_Malayalam;
- case HB_SCRIPT_SINHALA: return HB_Script_Sinhala;
- case HB_SCRIPT_THAI: return HB_Script_Thai;
- case HB_SCRIPT_LAO: return HB_Script_Lao;
- case HB_SCRIPT_TIBETAN: return HB_Script_Tibetan;
- case HB_SCRIPT_MYANMAR: return HB_Script_Myanmar;
- case HB_SCRIPT_GEORGIAN: return HB_Script_Georgian;
- case HB_SCRIPT_HANGUL: return HB_Script_Hangul;
- case HB_SCRIPT_OGHAM: return HB_Script_Ogham;
- case HB_SCRIPT_RUNIC: return HB_Script_Runic;
- case HB_SCRIPT_KHMER: return HB_Script_Khmer;
- case HB_SCRIPT_NKO: return HB_Script_Nko;
- case HB_SCRIPT_INHERITED: return HB_Script_Inherited;
- }
-}
-
-
-static HB_Bool
-hb_old_convertStringToGlyphIndices (HB_Font old_font,
- const HB_UChar16 *string,
- hb_uint32 length,
- HB_Glyph *glyphs,
- hb_uint32 *numGlyphs,
- HB_Bool rightToLeft)
-{
- hb_font_t *font = (hb_font_t *) old_font->userData;
-
- for (unsigned int i = 0; i < length; i++)
- {
- hb_codepoint_t u;
-
- /* XXX Handle UTF-16. Ugh */
- u = string[i];
-
- if (rightToLeft)
- u = hb_unicode_funcs_get_default ()->mirroring (u);
-
- font->get_glyph (u, 0, &u); /* TODO Variation selectors */
-
- glyphs[i] = u;
- }
- *numGlyphs = length; /* XXX */
-
- return true;
-}
-
-static void
-hb_old_getGlyphAdvances (HB_Font old_font,
- const HB_Glyph *glyphs,
- hb_uint32 numGlyphs,
- HB_Fixed *advances,
- int flags /*HB_ShaperFlag*/ HB_UNUSED)
-{
- hb_font_t *font = (hb_font_t *) old_font->userData;
-
- for (unsigned int i = 0; i < numGlyphs; i++)
- advances[i] = font->get_glyph_h_advance (glyphs[i]);
-}
-
-static HB_Bool
-hb_old_canRender (HB_Font old_font,
- const HB_UChar16 *string,
- hb_uint32 length)
-{
- return true; /* TODO */
-}
-
-static HB_Error
-hb_old_getPointInOutline (HB_Font old_font,
- HB_Glyph glyph,
- int flags /*HB_ShaperFlag*/,
- hb_uint32 point,
- HB_Fixed *xpos,
- HB_Fixed *ypos,
- hb_uint32 *nPoints)
-{
- return HB_Err_Ok; /* TODO */
-}
-
-static void
-hb_old_getGlyphMetrics (HB_Font old_font,
- HB_Glyph glyph,
- HB_GlyphMetrics *metrics)
-{
- hb_font_t *font = (hb_font_t *) old_font->userData;
-
- hb_glyph_extents_t extents;
-
- font->get_glyph_extents (glyph, &extents);
-
- metrics->x = extents.x_bearing;
- metrics->y = extents.y_bearing;
- metrics->width = extents.width;
- metrics->height = extents.height;
- metrics->xOffset = font->get_glyph_h_advance (glyph);
- metrics->yOffset = 0;
-}
-
-static HB_Fixed
-hb_old_getFontMetric (HB_Font old_font,
- HB_FontMetric metric)
-{
- hb_font_t *font = (hb_font_t *) old_font->userData;
-
- switch (metric)
- {
- case HB_FontAscent:
- return font->y_scale; /* XXX We don't have ascent data yet. */
-
- default:
- return 0;
- }
-}
-
-static const HB_FontClass hb_old_font_class = {
- hb_old_convertStringToGlyphIndices,
- hb_old_getGlyphAdvances,
- hb_old_canRender,
- hb_old_getPointInOutline,
- hb_old_getGlyphMetrics,
- hb_old_getFontMetric
-};
-
-
-
-static HB_Error
-table_func (void *font, HB_Tag tag, HB_Byte *buffer, HB_UInt *length)
-{
- hb_face_t *face = (hb_face_t *) font;
- hb_blob_t *blob = face->reference_table ((hb_tag_t) tag);
- unsigned int capacity = *length;
- *length = hb_blob_get_length (blob);
- memcpy (buffer, hb_blob_get_data (blob, NULL), MIN (capacity, *length));
- hb_blob_destroy (blob);
- return HB_Err_Ok;
-}
-
-
-/*
- * shaper face data
- */
-
-hb_old_shaper_face_data_t *
-_hb_old_shaper_face_data_create (hb_face_t *face)
-{
- return HB_NewFace (face, table_func);
-}
-
-void
-_hb_old_shaper_face_data_destroy (hb_old_shaper_face_data_t *data)
-{
- HB_FreeFace (data);
-}
-
-
-/*
- * shaper font data
- */
-
-hb_old_shaper_font_data_t *
-_hb_old_shaper_font_data_create (hb_font_t *font)
-{
- HB_FontRec *data = (HB_FontRec *) calloc (1, sizeof (HB_FontRec));
- if (unlikely (!data)) {
- DEBUG_MSG (OLD, font, "malloc()ing HB_Font failed");
- return NULL;
- }
-
- data->klass = &hb_old_font_class;
- data->x_ppem = font->x_ppem;
- data->y_ppem = font->y_ppem;
- data->x_scale = font->x_scale; /* XXX */
- data->y_scale = font->y_scale; /* XXX */
- data->userData = font;
-
- return data;
-}
-
-void
-_hb_old_shaper_font_data_destroy (hb_old_shaper_font_data_t *data)
-{
- free (data);
-}
-
-
-/*
- * shaper shape_plan data
- */
-
-struct hb_old_shaper_shape_plan_data_t {};
-
-hb_old_shaper_shape_plan_data_t *
-_hb_old_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_old_shaper_shape_plan_data_t *) HB_SHAPER_DATA_SUCCEEDED;
-}
-
-void
-_hb_old_shaper_shape_plan_data_destroy (hb_old_shaper_shape_plan_data_t *data HB_UNUSED)
-{
-}
-
-
-/*
- * shaper
- */
-
-hb_bool_t
-_hb_old_shape (hb_shape_plan_t *shape_plan HB_UNUSED,
- hb_font_t *font,
- hb_buffer_t *buffer,
- const hb_feature_t *features,
- unsigned int num_features)
-{
- hb_face_t *face = font->face;
- HB_Face old_face = HB_SHAPER_DATA_GET (face);
- HB_Font old_font = HB_SHAPER_DATA_GET (font);
-
- bool backward = HB_DIRECTION_IS_BACKWARD (buffer->props.direction);
-
-retry:
-
- unsigned int scratch_size;
- char *scratch = (char *) buffer->get_scratch_buffer (&scratch_size);
-
-#define utf16_index() var1.u32
- HB_UChar16 *pchars = (HB_UChar16 *) scratch;
- 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 < 0x10000))
- pchars[chars_len++] = c;
- else if (unlikely (c >= 0x110000))
- pchars[chars_len++] = 0xFFFD;
- else {
- pchars[chars_len++] = 0xD800 + ((c - 0x10000) >> 10);
- pchars[chars_len++] = 0xDC00 + ((c - 0x10000) & ((1 << 10) - 1));
- }
- }
-
-
-#define ALLOCATE_ARRAY(Type, name, len) \
- name = (Type *) scratch; \
- scratch += (len) * sizeof ((name)[0]); \
- scratch_size -= (len) * sizeof ((name)[0]);
-
-
- HB_ShaperItem item = {0};
-
- ALLOCATE_ARRAY (const HB_UChar16, item.string, chars_len);
- ALLOCATE_ARRAY (unsigned short, item.log_clusters, chars_len + 2);
- item.stringLength = chars_len;
- item.item.pos = 0;
- item.item.length = item.stringLength;
- item.item.script = hb_old_script_from_script (buffer->props.script);
- item.item.bidiLevel = backward ? 1 : 0;
-
- item.font = old_font;
- item.face = old_face;
- item.shaperFlags = 0;
-
- item.glyphIndicesPresent = false;
-
- /* TODO Alignment. */
- unsigned int num_glyphs = scratch_size / (sizeof (HB_Glyph) +
- sizeof (HB_GlyphAttributes) +
- sizeof (HB_Fixed) +
- sizeof (HB_FixedPoint) +
- sizeof (uint32_t));
-
- item.num_glyphs = num_glyphs;
- ALLOCATE_ARRAY (HB_Glyph, item.glyphs, num_glyphs);
- ALLOCATE_ARRAY (HB_GlyphAttributes, item.attributes, num_glyphs);
- ALLOCATE_ARRAY (HB_Fixed, item.advances, num_glyphs);
- ALLOCATE_ARRAY (HB_FixedPoint, item.offsets, num_glyphs);
- /* Apparently in some cases the offsets array will not be fully assigned to.
- * Clear it. */
- memset (item.offsets, 0, num_glyphs * sizeof (item.offsets[0]));
- uint32_t *vis_clusters;
- ALLOCATE_ARRAY (uint32_t, vis_clusters, num_glyphs);
-
-#undef ALLOCATE_ARRAY
-
- if (!HB_ShapeItem (&item))
- {
- if (unlikely (item.num_glyphs > num_glyphs))
- {
- buffer->ensure (buffer->allocated * 2);
- if (buffer->in_error)
- return false;
- goto retry;
- }
- return false;
- }
- num_glyphs = item.num_glyphs;
-
- /* 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 < num_glyphs; i++)
- vis_clusters[i] = -1;
- for (unsigned int i = 0; i < buffer->len; i++) {
- uint32_t *p = &vis_clusters[item.log_clusters[buffer->info[i].utf16_index()]];
- *p = MIN (*p, buffer->info[i].cluster);
- }
- for (unsigned int i = 1; i < num_glyphs; i++)
- if (vis_clusters[i] == (uint32_t) -1)
- vis_clusters[i] = vis_clusters[i - 1];
-
-#undef utf16_index
-
- buffer->ensure (num_glyphs);
- if (buffer->in_error)
- return false;
-
-
- buffer->len = num_glyphs;
- hb_glyph_info_t *info = buffer->info;
- for (unsigned int i = 0; i < num_glyphs; i++)
- {
- info[i].codepoint = item.glyphs[i];
- info[i].cluster = vis_clusters[i];
-
- info[i].mask = item.advances[i];
- info[i].var1.u32 = item.offsets[i].x;
- info[i].var2.u32 = item.offsets[i].y;
- }
-
- buffer->clear_positions ();
-
- for (unsigned int i = 0; i < num_glyphs; ++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 = info->var1.u32;
- pos->y_offset = info->var2.u32;
- }
-
- if (HB_DIRECTION_IS_BACKWARD (buffer->props.direction))
- buffer->reverse ();
-
- return true;
-}
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