diff options
Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-buffer-serialize.cc')
-rw-r--r-- | Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-buffer-serialize.cc | 418 |
1 files changed, 0 insertions, 418 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-buffer-serialize.cc b/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-buffer-serialize.cc deleted file mode 100644 index 81f75aec338..00000000000 --- a/Build/source/libs/harfbuzz/harfbuzz-1.0.3/src/hb-buffer-serialize.cc +++ /dev/null @@ -1,418 +0,0 @@ -/* - * Copyright © 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 - */ - -#include "hb-buffer-private.hh" - - -static const char *serialize_formats[] = { - "text", - "json", - NULL -}; - -/** - * hb_buffer_serialize_list_formats: - * - * - * - * Return value: (transfer none): - * - * Since: 1.0 - **/ -const char ** -hb_buffer_serialize_list_formats (void) -{ - return serialize_formats; -} - -/** - * hb_buffer_serialize_format_from_string: - * @str: - * @len: - * - * - * - * Return value: - * - * Since: 1.0 - **/ -hb_buffer_serialize_format_t -hb_buffer_serialize_format_from_string (const char *str, int len) -{ - /* Upper-case it. */ - return (hb_buffer_serialize_format_t) (hb_tag_from_string (str, len) & ~0x20202020u); -} - -/** - * hb_buffer_serialize_format_to_string: - * @format: - * - * - * - * Return value: - * - * Since: 1.0 - **/ -const char * -hb_buffer_serialize_format_to_string (hb_buffer_serialize_format_t format) -{ - switch (format) - { - case HB_BUFFER_SERIALIZE_FORMAT_TEXT: return serialize_formats[0]; - case HB_BUFFER_SERIALIZE_FORMAT_JSON: return serialize_formats[1]; - default: - case HB_BUFFER_SERIALIZE_FORMAT_INVALID: return NULL; - } -} - -static unsigned int -_hb_buffer_serialize_glyphs_json (hb_buffer_t *buffer, - unsigned int start, - unsigned int end, - char *buf, - unsigned int buf_size, - unsigned int *buf_consumed, - hb_font_t *font, - hb_buffer_serialize_flags_t flags) -{ - hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL); - hb_glyph_position_t *pos = (flags & HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS) ? - NULL : hb_buffer_get_glyph_positions (buffer, NULL); - - *buf_consumed = 0; - for (unsigned int i = start; i < end; i++) - { - char b[1024]; - char *p = b; - - /* In the following code, we know b is large enough that no overflow can happen. */ - -#define APPEND(s) HB_STMT_START { strcpy (p, s); p += strlen (s); } HB_STMT_END - - if (i) - *p++ = ','; - - *p++ = '{'; - - APPEND ("\"g\":"); - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES)) - { - char g[128]; - hb_font_glyph_to_string (font, info[i].codepoint, g, sizeof (g)); - *p++ = '"'; - for (char *q = g; *q; q++) { - if (*q == '"') - *p++ = '\\'; - *p++ = *q; - } - *p++ = '"'; - } - else - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "%u", info[i].codepoint)); - - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS)) { - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"cl\":%u", info[i].cluster)); - } - - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS)) - { - p += snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"dx\":%d,\"dy\":%d", - pos[i].x_offset, pos[i].y_offset); - p += snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"ax\":%d,\"ay\":%d", - pos[i].x_advance, pos[i].y_advance); - } - - if (flags & HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS) - { - hb_glyph_extents_t extents; - hb_font_get_glyph_extents(font, info[i].codepoint, &extents); - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"xb\":%d,\"yb\":%d", - extents.x_bearing, extents.y_bearing)); - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",\"w\":%d,\"h\":%d", - extents.width, extents.height)); - } - - *p++ = '}'; - - unsigned int l = p - b; - if (buf_size > l) - { - memcpy (buf, b, l); - buf += l; - buf_size -= l; - *buf_consumed += l; - *buf = '\0'; - } else - return i - start; - } - - return end - start; -} - -static unsigned int -_hb_buffer_serialize_glyphs_text (hb_buffer_t *buffer, - unsigned int start, - unsigned int end, - char *buf, - unsigned int buf_size, - unsigned int *buf_consumed, - hb_font_t *font, - hb_buffer_serialize_flags_t flags) -{ - hb_glyph_info_t *info = hb_buffer_get_glyph_infos (buffer, NULL); - hb_glyph_position_t *pos = (flags & HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS) ? - NULL : hb_buffer_get_glyph_positions (buffer, NULL); - - *buf_consumed = 0; - for (unsigned int i = start; i < end; i++) - { - char b[1024]; - char *p = b; - - /* In the following code, we know b is large enough that no overflow can happen. */ - - if (i) - *p++ = '|'; - - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES)) - { - hb_font_glyph_to_string (font, info[i].codepoint, p, 128); - p += strlen (p); - } - else - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "%u", info[i].codepoint)); - - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS)) { - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "=%u", info[i].cluster)); - } - - if (!(flags & HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS)) - { - if (pos[i].x_offset || pos[i].y_offset) - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "@%d,%d", pos[i].x_offset, pos[i].y_offset)); - - *p++ = '+'; - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "%d", pos[i].x_advance)); - if (pos[i].y_advance) - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), ",%d", pos[i].y_advance)); - } - - if (flags & HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS) - { - hb_glyph_extents_t extents; - hb_font_get_glyph_extents(font, info[i].codepoint, &extents); - p += MAX (0, snprintf (p, ARRAY_LENGTH (b) - (p - b), "<%d,%d,%d,%d>", extents.x_bearing, extents.y_bearing, extents.width, extents.height)); - } - - unsigned int l = p - b; - if (buf_size > l) - { - memcpy (buf, b, l); - buf += l; - buf_size -= l; - *buf_consumed += l; - *buf = '\0'; - } else - return i - start; - } - - return end - start; -} - -/* Returns number of items, starting at start, that were serialized. */ -/** - * hb_buffer_serialize_glyphs: - * @buffer: a buffer. - * @start: - * @end: - * @buf: (array length=buf_size): - * @buf_size: - * @buf_consumed: (out): - * @font: - * @format: - * @flags: - * - * - * - * Return value: - * - * Since: 1.0 - **/ -unsigned int -hb_buffer_serialize_glyphs (hb_buffer_t *buffer, - unsigned int start, - unsigned int end, - char *buf, - unsigned int buf_size, - unsigned int *buf_consumed, /* May be NULL */ - hb_font_t *font, /* May be NULL */ - hb_buffer_serialize_format_t format, - hb_buffer_serialize_flags_t flags) -{ - assert (start <= end && end <= buffer->len); - - unsigned int sconsumed; - if (!buf_consumed) - buf_consumed = &sconsumed; - *buf_consumed = 0; - - assert ((!buffer->len && buffer->content_type == HB_BUFFER_CONTENT_TYPE_INVALID) || - buffer->content_type == HB_BUFFER_CONTENT_TYPE_GLYPHS); - - if (unlikely (start == end)) - return 0; - - if (!font) - font = hb_font_get_empty (); - - switch (format) - { - case HB_BUFFER_SERIALIZE_FORMAT_TEXT: - return _hb_buffer_serialize_glyphs_text (buffer, start, end, - buf, buf_size, buf_consumed, - font, flags); - - case HB_BUFFER_SERIALIZE_FORMAT_JSON: - return _hb_buffer_serialize_glyphs_json (buffer, start, end, - buf, buf_size, buf_consumed, - font, flags); - - default: - case HB_BUFFER_SERIALIZE_FORMAT_INVALID: - return 0; - - } -} - - -static hb_bool_t -parse_uint (const char *pp, const char *end, uint32_t *pv) -{ - char buf[32]; - unsigned int len = MIN (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - pp)); - strncpy (buf, pp, len); - buf[len] = '\0'; - - char *p = buf; - char *pend = p; - uint32_t v; - - errno = 0; - v = strtol (p, &pend, 10); - if (errno || p == pend || pend - p != end - pp) - return false; - - *pv = v; - return true; -} - -static hb_bool_t -parse_int (const char *pp, const char *end, int32_t *pv) -{ - char buf[32]; - unsigned int len = MIN (ARRAY_LENGTH (buf) - 1, (unsigned int) (end - pp)); - strncpy (buf, pp, len); - buf[len] = '\0'; - - char *p = buf; - char *pend = p; - int32_t v; - - errno = 0; - v = strtol (p, &pend, 10); - if (errno || p == pend || pend - p != end - pp) - return false; - - *pv = v; - return true; -} - -#include "hb-buffer-deserialize-json.hh" -#include "hb-buffer-deserialize-text.hh" - -/** - * hb_buffer_deserialize_glyphs: - * @buffer: a buffer. - * @buf: (array length=buf_len): - * @buf_len: - * @end_ptr: (out): - * @font: - * @format: - * - * - * - * Return value: - * - * Since: 1.0 - **/ -hb_bool_t -hb_buffer_deserialize_glyphs (hb_buffer_t *buffer, - const char *buf, - int buf_len, /* -1 means nul-terminated */ - const char **end_ptr, /* May be NULL */ - hb_font_t *font, /* May be NULL */ - hb_buffer_serialize_format_t format) -{ - const char *end; - if (!end_ptr) - end_ptr = &end; - *end_ptr = buf; - - assert ((!buffer->len && buffer->content_type == HB_BUFFER_CONTENT_TYPE_INVALID) || - buffer->content_type == HB_BUFFER_CONTENT_TYPE_GLYPHS); - - if (buf_len == -1) - buf_len = strlen (buf); - - if (!buf_len) - { - *end_ptr = buf; - return false; - } - - hb_buffer_set_content_type (buffer, HB_BUFFER_CONTENT_TYPE_GLYPHS); - - if (!font) - font = hb_font_get_empty (); - - switch (format) - { - case HB_BUFFER_SERIALIZE_FORMAT_TEXT: - return _hb_buffer_deserialize_glyphs_text (buffer, - buf, buf_len, end_ptr, - font); - - case HB_BUFFER_SERIALIZE_FORMAT_JSON: - return _hb_buffer_deserialize_glyphs_json (buffer, - buf, buf_len, end_ptr, - font); - - default: - case HB_BUFFER_SERIALIZE_FORMAT_INVALID: - return false; - - } -} |