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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2023-02-12 04:02:23 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2023-02-12 04:02:23 +0000
commit68b944ccd2bbecda0f13fbc7f89940651052fb5d (patch)
tree5b6eb646bd02c0121c23f03038d98efb4e3978f8 /Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-cpal-table.hh
parent95839e60a0c4b132fff96a310d15366cddf02a64 (diff)
harfbuzz 7.0.0
git-svn-id: svn://tug.org/texlive/trunk@65798 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-cpal-table.hh')
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diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-cpal-table.hh b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-color-cpal-table.hh
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@@ -1,322 +0,0 @@
-/*
- * Copyright © 2016 Google, Inc.
- * Copyright © 2018 Ebrahim Byagowi
- *
- * 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): Sascha Brawer
- */
-
-#ifndef HB_OT_COLOR_CPAL_TABLE_HH
-#define HB_OT_COLOR_CPAL_TABLE_HH
-
-#include "hb-open-type.hh"
-#include "hb-ot-color.h"
-#include "hb-ot-name.h"
-
-
-/*
- * CPAL -- Color Palette
- * https://docs.microsoft.com/en-us/typography/opentype/spec/cpal
- */
-#define HB_OT_TAG_CPAL HB_TAG('C','P','A','L')
-
-namespace OT {
-
-
-struct CPALV1Tail
-{
- friend struct CPAL;
-
- private:
- hb_ot_color_palette_flags_t get_palette_flags (const void *base,
- unsigned int palette_index,
- unsigned int palette_count) const
- {
- if (!paletteFlagsZ) return HB_OT_COLOR_PALETTE_FLAG_DEFAULT;
- return (hb_ot_color_palette_flags_t) (uint32_t)
- (base+paletteFlagsZ).as_array (palette_count)[palette_index];
- }
-
- hb_ot_name_id_t get_palette_name_id (const void *base,
- unsigned int palette_index,
- unsigned int palette_count) const
- {
- if (!paletteLabelsZ) return HB_OT_NAME_ID_INVALID;
- return (base+paletteLabelsZ).as_array (palette_count)[palette_index];
- }
-
- hb_ot_name_id_t get_color_name_id (const void *base,
- unsigned int color_index,
- unsigned int color_count) const
- {
- if (!colorLabelsZ) return HB_OT_NAME_ID_INVALID;
- return (base+colorLabelsZ).as_array (color_count)[color_index];
- }
-
- public:
- bool serialize (hb_serialize_context_t *c,
- unsigned palette_count,
- unsigned color_count,
- const void *base,
- const hb_map_t *color_index_map) const
- {
- TRACE_SERIALIZE (this);
- auto *out = c->allocate_size<CPALV1Tail> (static_size);
- if (unlikely (!out)) return_trace (false);
-
- out->paletteFlagsZ = 0;
- if (paletteFlagsZ)
- out->paletteFlagsZ.serialize_copy (c, paletteFlagsZ, base, 0, hb_serialize_context_t::Head, palette_count);
-
- out->paletteLabelsZ = 0;
- if (paletteLabelsZ)
- out->paletteLabelsZ.serialize_copy (c, paletteLabelsZ, base, 0, hb_serialize_context_t::Head, palette_count);
-
- const hb_array_t<const NameID> colorLabels = (base+colorLabelsZ).as_array (color_count);
- if (colorLabelsZ)
- {
- c->push ();
- for (const auto _ : colorLabels)
- {
- const hb_codepoint_t *v;
- if (!color_index_map->has (_, &v)) continue;
- NameID new_color_idx;
- new_color_idx = *v;
- if (!c->copy<NameID> (new_color_idx))
- {
- c->pop_discard ();
- return_trace (false);
- }
- }
- c->add_link (out->colorLabelsZ, c->pop_pack ());
- }
- return_trace (true);
- }
-
- bool sanitize (hb_sanitize_context_t *c,
- const void *base,
- unsigned int palette_count,
- unsigned int color_count) const
- {
- TRACE_SANITIZE (this);
- return_trace (c->check_struct (this) &&
- (!paletteFlagsZ || (base+paletteFlagsZ).sanitize (c, palette_count)) &&
- (!paletteLabelsZ || (base+paletteLabelsZ).sanitize (c, palette_count)) &&
- (!colorLabelsZ || (base+colorLabelsZ).sanitize (c, color_count)));
- }
-
- protected:
- // TODO(garretrieger): these offsets can hold nulls so we should not be using non-null offsets
- // here. Currently they are needed since UnsizedArrayOf doesn't define null_size
- NNOffset32To<UnsizedArrayOf<HBUINT32>>
- paletteFlagsZ; /* Offset from the beginning of CPAL table to
- * the Palette Type Array. Set to 0 if no array
- * is provided. */
- NNOffset32To<UnsizedArrayOf<NameID>>
- paletteLabelsZ; /* Offset from the beginning of CPAL table to
- * the palette labels array. Set to 0 if no
- * array is provided. */
- NNOffset32To<UnsizedArrayOf<NameID>>
- colorLabelsZ; /* Offset from the beginning of CPAL table to
- * the color labels array. Set to 0
- * if no array is provided. */
- public:
- DEFINE_SIZE_STATIC (12);
-};
-
-typedef HBUINT32 BGRAColor;
-
-struct CPAL
-{
- static constexpr hb_tag_t tableTag = HB_OT_TAG_CPAL;
-
- bool has_data () const { return numPalettes; }
-
- unsigned int get_size () const
- { return min_size + numPalettes * sizeof (colorRecordIndicesZ[0]); }
-
- unsigned int get_palette_count () const { return numPalettes; }
- unsigned int get_color_count () const { return numColors; }
-
- hb_ot_color_palette_flags_t get_palette_flags (unsigned int palette_index) const
- { return v1 ().get_palette_flags (this, palette_index, numPalettes); }
-
- hb_ot_name_id_t get_palette_name_id (unsigned int palette_index) const
- { return v1 ().get_palette_name_id (this, palette_index, numPalettes); }
-
- hb_ot_name_id_t get_color_name_id (unsigned int color_index) const
- { return v1 ().get_color_name_id (this, color_index, numColors); }
-
- unsigned int get_palette_colors (unsigned int palette_index,
- unsigned int start_offset,
- unsigned int *color_count, /* IN/OUT. May be NULL. */
- hb_color_t *colors /* OUT. May be NULL. */) const
- {
- if (unlikely (palette_index >= numPalettes))
- {
- if (color_count) *color_count = 0;
- return 0;
- }
- unsigned int start_index = colorRecordIndicesZ[palette_index];
- hb_array_t<const BGRAColor> all_colors ((this+colorRecordsZ).arrayZ, numColorRecords);
- hb_array_t<const BGRAColor> palette_colors = all_colors.sub_array (start_index,
- numColors);
- if (color_count)
- {
- + palette_colors.sub_array (start_offset, color_count)
- | hb_sink (hb_array (colors, *color_count))
- ;
- }
- return numColors;
- }
-
- private:
- const CPALV1Tail& v1 () const
- {
- if (version == 0) return Null (CPALV1Tail);
- return StructAfter<CPALV1Tail> (*this);
- }
-
- public:
- bool serialize (hb_serialize_context_t *c,
- const hb_array_t<const HBUINT16> &color_record_indices,
- const hb_array_t<const BGRAColor> &color_records,
- const hb_vector_t<unsigned>& first_color_index_for_layer,
- const hb_map_t& first_color_to_layer_index,
- const hb_set_t &retained_color_indices) const
- {
- TRACE_SERIALIZE (this);
-
- // TODO(grieger): limit total final size.
-
- for (const auto idx : color_record_indices)
- {
- hb_codepoint_t layer_index = first_color_to_layer_index[idx];
-
- HBUINT16 new_idx;
- new_idx = layer_index * retained_color_indices.get_population ();
- if (!c->copy<HBUINT16> (new_idx)) return_trace (false);
- }
-
- c->push ();
- for (unsigned first_color_index : first_color_index_for_layer)
- {
- for (hb_codepoint_t color_index : retained_color_indices)
- {
- if (!c->copy<BGRAColor> (color_records[first_color_index + color_index]))
- {
- c->pop_discard ();
- return_trace (false);
- }
- }
- }
-
- c->add_link (colorRecordsZ, c->pop_pack ());
- return_trace (true);
- }
-
- bool subset (hb_subset_context_t *c) const
- {
- TRACE_SUBSET (this);
- if (!numPalettes) return_trace (false);
-
- const hb_map_t *color_index_map = c->plan->colr_palettes;
- if (color_index_map->is_empty ()) return_trace (false);
-
- hb_set_t retained_color_indices;
- for (const auto _ : color_index_map->keys ())
- {
- if (_ == 0xFFFF) continue;
- retained_color_indices.add (_);
- }
- if (retained_color_indices.is_empty ()) return_trace (false);
-
- auto *out = c->serializer->start_embed (*this);
- if (unlikely (!c->serializer->extend_min (out))) return_trace (false);
-
-
- out->version = version;
- out->numColors = retained_color_indices.get_population ();
- out->numPalettes = numPalettes;
-
- hb_vector_t<unsigned> first_color_index_for_layer;
- hb_map_t first_color_to_layer_index;
-
- const hb_array_t<const HBUINT16> colorRecordIndices = colorRecordIndicesZ.as_array (numPalettes);
- for (const auto first_color_record_idx : colorRecordIndices)
- {
- if (first_color_to_layer_index.has (first_color_record_idx)) continue;
-
- first_color_index_for_layer.push (first_color_record_idx);
- first_color_to_layer_index.set (first_color_record_idx,
- first_color_index_for_layer.length - 1);
- }
-
- out->numColorRecords = first_color_index_for_layer.length
- * retained_color_indices.get_population ();
-
- const hb_array_t<const BGRAColor> color_records = (this+colorRecordsZ).as_array (numColorRecords);
- if (!out->serialize (c->serializer,
- colorRecordIndices,
- color_records,
- first_color_index_for_layer,
- first_color_to_layer_index,
- retained_color_indices))
- return_trace (false);
-
- if (version == 1)
- return_trace (v1 ().serialize (c->serializer, numPalettes, numColors, this, color_index_map));
-
- return_trace (true);
- }
-
- bool sanitize (hb_sanitize_context_t *c) const
- {
- TRACE_SANITIZE (this);
- return_trace (c->check_struct (this) &&
- (this+colorRecordsZ).sanitize (c, numColorRecords) &&
- colorRecordIndicesZ.sanitize (c, numPalettes) &&
- (version == 0 || v1 ().sanitize (c, this, numPalettes, numColors)));
- }
-
- protected:
- HBUINT16 version; /* Table version number */
- /* Version 0 */
- HBUINT16 numColors; /* Number of colors in each palette. */
- HBUINT16 numPalettes; /* Number of palettes in the table. */
- HBUINT16 numColorRecords; /* Total number of color records, combined for
- * all palettes. */
- NNOffset32To<UnsizedArrayOf<BGRAColor>>
- colorRecordsZ; /* Offset from the beginning of CPAL table to
- * the first ColorRecord. */
- UnsizedArrayOf<HBUINT16>
- colorRecordIndicesZ; /* Index of each palette’s first color record in
- * the combined color record array. */
-/*CPALV1Tail v1;*/
- public:
- DEFINE_SIZE_ARRAY (12, colorRecordIndicesZ);
-};
-
-} /* namespace OT */
-
-
-#endif /* HB_OT_COLOR_CPAL_TABLE_HH */