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-rw-r--r--src/hb-icu-le.cc265
1 files changed, 0 insertions, 265 deletions
diff --git a/src/hb-icu-le.cc b/src/hb-icu-le.cc
deleted file mode 100644
index 634354e2..00000000
--- a/src/hb-icu-le.cc
+++ /dev/null
@@ -1,265 +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 icu_le
-#define hb_icu_le_shaper_font_data_t PortableFontInstance
-#include "hb-shaper-impl-private.hh"
-
-#include "hb-icu-le/PortableFontInstance.h"
-
-#include <layout/LEScripts.h>
-#include <layout/loengine.h>
-#include <unicode/uscript.h>
-#include <unicode/unistr.h>
-
-
-/* Duplicated here so we don't depend on hb-icu. */
-
-static hb_script_t
-_hb_icu_script_to_script (UScriptCode script)
-{
- if (unlikely (script == USCRIPT_INVALID_CODE))
- return HB_SCRIPT_INVALID;
-
- return hb_script_from_string (uscript_getShortName (script), -1);
-}
-
-static UScriptCode
-_hb_icu_script_from_script (hb_script_t script)
-{
- if (unlikely (script == HB_SCRIPT_INVALID))
- return USCRIPT_INVALID_CODE;
-
- for (unsigned int i = 0; i < USCRIPT_CODE_LIMIT; i++)
- if (unlikely (_hb_icu_script_to_script ((UScriptCode) i) == script))
- return (UScriptCode) i;
-
- return USCRIPT_UNKNOWN;
-}
-
-
-/*
- * shaper face data
- */
-
-struct hb_icu_le_shaper_face_data_t {};
-
-hb_icu_le_shaper_face_data_t *
-_hb_icu_le_shaper_face_data_create (hb_face_t *face HB_UNUSED)
-{
- return (hb_icu_le_shaper_face_data_t *) HB_SHAPER_DATA_SUCCEEDED;
-}
-
-void
-_hb_icu_le_shaper_face_data_destroy (hb_icu_le_shaper_face_data_t *data HB_UNUSED)
-{
-}
-
-
-/*
- * shaper font data
- */
-
-hb_icu_le_shaper_font_data_t *
-_hb_icu_le_shaper_font_data_create (hb_font_t *font)
-{
- LEErrorCode status = LE_NO_ERROR;
- unsigned int x_ppem = font->x_ppem ? font->x_ppem : 72;
- unsigned int y_ppem = font->y_ppem ? font->y_ppem : 72;
- hb_icu_le_shaper_font_data_t *data = new PortableFontInstance (font->face,
- font->x_scale / x_ppem,
- font->y_scale / y_ppem,
- x_ppem,
- y_ppem,
- status);
- if (status != LE_NO_ERROR) {
- delete (data);
- return NULL;
- }
-
- return data;
-}
-
-void
-_hb_icu_le_shaper_font_data_destroy (hb_icu_le_shaper_font_data_t *data)
-{
- delete (data);
-}
-
-
-/*
- * shaper shape_plan data
- */
-
-struct hb_icu_le_shaper_shape_plan_data_t {};
-
-hb_icu_le_shaper_shape_plan_data_t *
-_hb_icu_le_shaper_shape_plan_data_create (hb_shape_plan_t *shape_plan HB_UNUSED,
- const hb_feature_t *user_features,
- unsigned int num_user_features)
-{
- return (hb_icu_le_shaper_shape_plan_data_t *) HB_SHAPER_DATA_SUCCEEDED;
-}
-
-void
-_hb_icu_le_shaper_shape_plan_data_destroy (hb_icu_le_shaper_shape_plan_data_t *data)
-{
-}
-
-
-/*
- * shaper
- */
-
-hb_bool_t
-_hb_icu_le_shape (hb_shape_plan_t *shape_plan,
- hb_font_t *font,
- hb_buffer_t *buffer,
- const hb_feature_t *features,
- unsigned int num_features)
-{
- LEFontInstance *font_instance = HB_SHAPER_DATA_GET (font);
- le_int32 script_code = _hb_icu_script_from_script (shape_plan->props.script);
- le_int32 language_code = -1 /* TODO */;
- le_int32 typography_flags = 3; /* Needed for ligatures and kerning */
- LEErrorCode status = LE_NO_ERROR;
- le_engine *le = le_create ((const le_font *) font_instance,
- script_code,
- language_code,
- typography_flags,
- &status);
- if (status != LE_NO_ERROR)
- { le_close (le); return false; }
-
-retry:
-
- unsigned int scratch_size;
- char *scratch = (char *) buffer->get_scratch_buffer (&scratch_size);
-
- LEUnicode *pchars = (LEUnicode *) scratch;
- unsigned int chars_len = 0;
- for (unsigned int i = 0; i < buffer->len; i++) {
- hb_codepoint_t c = buffer->info[i].codepoint;
- 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) \
- Type *name = (Type *) scratch; \
- scratch += (len) * sizeof ((name)[0]); \
- scratch_size -= (len) * sizeof ((name)[0]);
-
- ALLOCATE_ARRAY (LEUnicode, chars, chars_len);
- ALLOCATE_ARRAY (unsigned int, clusters, chars_len);
-
- chars_len = 0;
- for (unsigned int i = 0; i < buffer->len; i++) {
- hb_codepoint_t c = buffer->info[i].codepoint;
- if (likely (c < 0x10000))
- clusters[chars_len++] = buffer->info[i].cluster;
- else if (unlikely (c >= 0x110000))
- clusters[chars_len++] = buffer->info[i].cluster;
- else {
- clusters[chars_len++] = buffer->info[i].cluster;
- clusters[chars_len++] = buffer->info[i].cluster;
- }
- }
-
- unsigned int glyph_count = le_layoutChars (le,
- chars,
- 0,
- chars_len,
- chars_len,
- HB_DIRECTION_IS_BACKWARD (buffer->props.direction),
- 0., 0.,
- &status);
- if (status != LE_NO_ERROR)
- { le_close (le); return false; }
-
- unsigned int num_glyphs = scratch_size / (sizeof (LEGlyphID) +
- sizeof (le_int32) +
- sizeof (float) * 2);
-
- if (unlikely (glyph_count >= num_glyphs || glyph_count > buffer->allocated)) {
- buffer->ensure (buffer->allocated * 2);
- if (buffer->in_error)
- { le_close (le); return false; }
- goto retry;
- }
-
- ALLOCATE_ARRAY (LEGlyphID, glyphs, glyph_count);
- ALLOCATE_ARRAY (le_int32, indices, glyph_count);
- ALLOCATE_ARRAY (float, positions, glyph_count * 2 + 2);
-
- le_getGlyphs (le, glyphs, &status);
- le_getCharIndices (le, indices, &status);
- le_getGlyphPositions (le, positions, &status);
-
-#undef ALLOCATE_ARRAY
-
- /* Ok, we've got everything we need, now compose output buffer,
- * very, *very*, carefully! */
-
- unsigned int j = 0;
- hb_glyph_info_t *info = buffer->info;
- for (unsigned int i = 0; i < glyph_count; i++)
- {
- if (glyphs[i] >= 0xFFFE)
- continue;
-
- info[j].codepoint = glyphs[i];
- info[j].cluster = clusters[indices[i]];
-
- /* icu-le doesn't seem to have separate advance values. */
- info[j].mask = positions[2 * i + 2] - positions[2 * i];
- info[j].var1.u32 = 0;
- info[j].var2.u32 = -positions[2 * i + 1];
-
- j++;
- }
- buffer->len = j;
-
- buffer->clear_positions ();
-
- for (unsigned int i = 0; i < buffer->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 = info->var1.u32;
- pos->y_offset = info->var2.u32;
- }
-
- le_close (le);
- return true;
-}
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