Support for 3 more combining marks types
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
97ea65d432
commit
82c5d8dcfc
3 changed files with 149 additions and 104 deletions
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@ -63,3 +63,4 @@ stamp-h1
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stamp-h.in
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symlist.c
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update-grub_lib
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unidata.c
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249
font/font.c
249
font/font.c
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@ -1163,6 +1163,21 @@ grub_font_construct_glyph (grub_font_t hinted_font,
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combtype = get_comb_type (glyph_id->combining[i]);
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switch (combtype)
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{
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case GRUB_UNICODE_COMB_OVERLAY:
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if (height < combining_glyphs[i]->height)
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{
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offset_y -= (combining_glyphs[i]->height - height) / 2;
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height = combining_glyphs[i]->height;
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}
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if (width < combining_glyphs[i]->width)
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{
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offset_x -= (combining_glyphs[i]->width - width) / 2;
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width = combining_glyphs[i]->width;
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}
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if (device_width < combining_glyphs[i]->width)
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device_width = combining_glyphs[i]->width;
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break;
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case GRUB_UNICODE_STACK_ABOVE:
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{
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grub_int16_t space;
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@ -1261,40 +1276,45 @@ grub_font_construct_glyph (grub_font_t hinted_font,
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for (i = 0; i < glyph_id->ncomb; i++)
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{
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enum grub_comb_type combtype;
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grub_int16_t space = 0;
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if (!combining_glyphs[i])
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continue;
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combtype = get_comb_type (glyph_id->combining[i]);
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switch (combtype)
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{
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case GRUB_UNICODE_STACK_ABOVE:
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{
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grub_int16_t space;
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space = combining_glyphs[i]->offset_y
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- grub_font_get_xheight (combining_glyphs[i]->font);
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if (space < 0)
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space = 1;
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case GRUB_UNICODE_COMB_OVERLAY:
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grub_font_blit_glyph (glyph, combining_glyphs[i],
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(width - combining_glyphs[i]->width) / 2,
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(height - combining_glyphs[i]->height) / 2);
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break;
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curtop += combining_glyphs[i]->height + space;
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grub_font_blit_glyph (glyph, combining_glyphs[i],
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(width - combining_glyphs[i]->width) / 2,
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(height + offset_y) - curtop);
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}
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case GRUB_UNICODE_STACK_ABOVE:
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space = combining_glyphs[i]->offset_y
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- grub_font_get_xheight (combining_glyphs[i]->font);
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if (space < 0)
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space = 1;
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case GRUB_UNICODE_STACK_ATTACHED_ABOVE:
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curtop += combining_glyphs[i]->height + space;
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grub_font_blit_glyph (glyph, combining_glyphs[i],
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(width - combining_glyphs[i]->width) / 2,
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(height + offset_y) - curtop);
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break;
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case GRUB_UNICODE_STACK_BELOW:
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{
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grub_int16_t space;
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space = -(combining_glyphs[i]->offset_y
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+ combining_glyphs[i]->height);
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if (space < 0)
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space = 1;
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curbottom -= space;
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grub_font_blit_glyph (glyph, combining_glyphs[i],
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(width - combining_glyphs[i]->width) / 2,
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(height + offset_y) - curbottom);
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curbottom -= combining_glyphs[i]->height;
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}
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space = -(combining_glyphs[i]->offset_y
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+ combining_glyphs[i]->height);
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if (space < 0)
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space = 1;
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case GRUB_UNICODE_STACK_ATTACHED_BELOW:
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curbottom -= space;
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grub_font_blit_glyph (glyph, combining_glyphs[i],
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(width - combining_glyphs[i]->width) / 2,
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(height + offset_y) - curbottom);
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curbottom -= combining_glyphs[i]->height;
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break;
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default:
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@ -1525,87 +1545,107 @@ grub_err_bidi_logical_to_visual (grub_uint32_t *logical,
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cur_level = base_level;
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cur_override = OVERRIDE_NEUTRAL;
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for (i = 0; i < logical_len; i++)
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{
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/* Variation selectors >= 17 are outside of BMP and SMP.
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Handle variation selectors first to avoid potentially costly lookups.
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*/
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if (logical[i] >= GRUB_UNICODE_VARIATION_SELECTOR_1
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&& logical[i] <= GRUB_UNICODE_VARIATION_SELECTOR_16)
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{
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if (!visual_len)
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continue;
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visual[visual_len - 1].variant
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= logical[i] - GRUB_UNICODE_VARIATION_SELECTOR_1 + 1;
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}
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if (logical[i] >= GRUB_UNICODE_VARIATION_SELECTOR_17
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&& logical[i] <= GRUB_UNICODE_VARIATION_SELECTOR_256)
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{
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if (!visual_len)
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continue;
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visual[visual_len - 1].variant
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= logical[i] - GRUB_UNICODE_VARIATION_SELECTOR_17 + 17;
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continue;
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}
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type = get_bidi_type (logical[i]);
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switch (type)
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{
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case GRUB_BIDI_TYPE_RLE:
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push_stack (cur_override, (cur_level | 1) + 1);
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break;
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case GRUB_BIDI_TYPE_RLO:
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push_stack (OVERRIDE_R, (cur_level | 1) + 1);
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break;
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case GRUB_BIDI_TYPE_LRE:
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push_stack (cur_override, (cur_level & ~1) + 2);
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break;
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case GRUB_BIDI_TYPE_LRO:
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push_stack (OVERRIDE_L, (cur_level & ~1) + 2);
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break;
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case GRUB_BIDI_TYPE_PDF:
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pop_stack ();
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break;
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case GRUB_BIDI_TYPE_BN:
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break;
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default:
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{
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unsigned last_comb_pointer = 0;
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for (i = 0; i < logical_len; i++)
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{
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/* Variation selectors >= 17 are outside of BMP and SMP.
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Handle variation selectors first to avoid potentially costly lookups.
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*/
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if (logical[i] >= GRUB_UNICODE_VARIATION_SELECTOR_1
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&& logical[i] <= GRUB_UNICODE_VARIATION_SELECTOR_16)
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{
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enum grub_comb_type comb_type;
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comb_type = get_comb_type (logical[i]);
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if (comb_type)
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{
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grub_uint32_t *n;
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if (!visual_len)
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break;
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n = grub_realloc (visual[visual_len - 1].combining,
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sizeof (grub_uint32_t)
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* (visual[visual_len - 1].ncomb + 1));
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if (!n)
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{
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grub_errno = GRUB_ERR_NONE;
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break;
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}
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visual[visual_len - 1].combining = n;
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visual[visual_len - 1].combining[visual[visual_len - 1].ncomb]
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= logical[i];
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visual[visual_len - 1].ncomb++;
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break;
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}
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levels[visual_len] = cur_level;
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if (cur_override != OVERRIDE_NEUTRAL)
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resolved_types[visual_len] =
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(cur_override == OVERRIDE_L) ? GRUB_BIDI_TYPE_L : GRUB_BIDI_TYPE_R;
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else
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resolved_types[visual_len] = type;
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visual[visual_len].base = logical[i];
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visual[visual_len].variant = 0;
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visual[visual_len].attributes = 0;
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visual[visual_len].ncomb = 0;
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visual[visual_len].combining = NULL;
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visual_len++;
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if (!visual_len)
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continue;
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visual[visual_len - 1].variant
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= logical[i] - GRUB_UNICODE_VARIATION_SELECTOR_1 + 1;
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}
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}
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}
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if (logical[i] >= GRUB_UNICODE_VARIATION_SELECTOR_17
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&& logical[i] <= GRUB_UNICODE_VARIATION_SELECTOR_256)
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{
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if (!visual_len)
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continue;
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visual[visual_len - 1].variant
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= logical[i] - GRUB_UNICODE_VARIATION_SELECTOR_17 + 17;
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continue;
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}
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type = get_bidi_type (logical[i]);
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switch (type)
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{
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case GRUB_BIDI_TYPE_RLE:
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push_stack (cur_override, (cur_level | 1) + 1);
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break;
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case GRUB_BIDI_TYPE_RLO:
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push_stack (OVERRIDE_R, (cur_level | 1) + 1);
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break;
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case GRUB_BIDI_TYPE_LRE:
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push_stack (cur_override, (cur_level & ~1) + 2);
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break;
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case GRUB_BIDI_TYPE_LRO:
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push_stack (OVERRIDE_L, (cur_level & ~1) + 2);
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break;
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case GRUB_BIDI_TYPE_PDF:
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pop_stack ();
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break;
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case GRUB_BIDI_TYPE_BN:
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break;
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default:
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{
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enum grub_comb_type comb_type;
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comb_type = get_comb_type (logical[i]);
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if (comb_type)
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{
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grub_uint32_t *n;
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unsigned j;
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if (!visual_len)
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break;
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if (comb_type == GRUB_UNICODE_COMB_MC
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|| comb_type == GRUB_UNICODE_COMB_ME
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|| comb_type == GRUB_UNICODE_COMB_MN)
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last_comb_pointer = visual[visual_len - 1].ncomb;
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n = grub_realloc (visual[visual_len - 1].combining,
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sizeof (grub_uint32_t)
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* (visual[visual_len - 1].ncomb + 1));
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if (!n)
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{
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grub_errno = GRUB_ERR_NONE;
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break;
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}
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for (j = last_comb_pointer;
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j < visual[visual_len - 1].ncomb; j++)
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if (get_comb_type (visual[visual_len - 1].combining[j])
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> comb_type)
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break;
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grub_memmove (visual[visual_len - 1].combining + j + 1,
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visual[visual_len - 1].combining + j,
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(visual[visual_len - 1].ncomb - j)
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* sizeof (visual[visual_len - 1].combining[0]));
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visual[visual_len - 1].combining = n;
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visual[visual_len - 1].combining[j] = logical[i];
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visual[visual_len - 1].ncomb++;
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break;
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}
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last_comb_pointer = 0;
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levels[visual_len] = cur_level;
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if (cur_override != OVERRIDE_NEUTRAL)
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resolved_types[visual_len] =
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(cur_override == OVERRIDE_L) ? GRUB_BIDI_TYPE_L
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: GRUB_BIDI_TYPE_R;
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else
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resolved_types[visual_len] = type;
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visual[visual_len].base = logical[i];
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visual[visual_len].variant = 0;
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visual[visual_len].attributes = 0;
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visual[visual_len].ncomb = 0;
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visual[visual_len].combining = NULL;
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visual_len++;
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}
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}
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}
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}
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for (run_start = 0; run_start < visual_len; run_start = run_end)
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{
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@ -1781,6 +1821,7 @@ grub_err_bidi_logical_to_visual (grub_uint32_t *logical,
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if (levels[i] < min_odd_level && (levels[i] & 1))
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min_odd_level = levels[i];
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}
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/* FIXME: can be optimized. */
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for (j = max_level; j >= min_odd_level; j--)
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{
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unsigned in = 0;
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@ -55,6 +55,9 @@ enum grub_bidi_type
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enum grub_comb_type
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{
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GRUB_UNICODE_COMB_OVERLAY = 1,
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GRUB_UNICODE_STACK_ATTACHED_BELOW = 202,
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GRUB_UNICODE_STACK_ATTACHED_ABOVE = 214,
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GRUB_UNICODE_STACK_BELOW = 220,
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GRUB_UNICODE_STACK_ABOVE = 230,
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/* If combining nature is indicated only by class and
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