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Merge pull request #71909 from bruvzg/utf16_bidi_override_fix 

Fix BiDi override for the characters outside BMP (e.g., emojis).
This commit is contained in:
Rémi Verschelde 2023-01-23 12:26:24 +01:00
parent 1891d9fdf1 96ed1c19dd
commit a98431d1c1
No known key found for this signature in database
GPG Key ID: C3336907360768E1
1 changed files with 9 additions and 8 deletions
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17
modules/text_server_adv/text_server_adv.cpp
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@ -4136,8 +4136,9 @@ bool TextServerAdvanced::_shape_substr(ShapedTextDataAdvanced *p_new_sd, const S
if (p_sd->bidi_override[ov].x >= p_start + p_length || p_sd->bidi_override[ov].y <= p_start) {
continue;
}
int start = _convert_pos_inv(p_sd, MAX(0, p_start - p_sd->bidi_override[ov].x));
int end = _convert_pos_inv(p_sd, MIN(p_start + p_length, p_sd->bidi_override[ov].y) - p_sd->bidi_override[ov].x);
int ov_start = _convert_pos_inv(p_sd, p_sd->bidi_override[ov].x);
int start = MAX(0, _convert_pos_inv(p_sd, p_start) - ov_start);
int end = MIN(_convert_pos_inv(p_sd, p_start + p_length), _convert_pos_inv(p_sd, p_sd->bidi_override[ov].y)) - ov_start;
ERR_FAIL_COND_V_MSG((start < 0 || end - start > p_new_sd->utf16.length()), false, "Invalid BiDi override range.");
@ -4159,8 +4160,8 @@ bool TextServerAdvanced::_shape_substr(ShapedTextDataAdvanced *p_new_sd, const S
int32_t _bidi_run_length = 0;
ubidi_getVisualRun(bidi_iter, i, &_bidi_run_start, &_bidi_run_length);
int32_t bidi_run_start = _convert_pos(p_sd, p_sd->bidi_override[ov].x + start + _bidi_run_start);
int32_t bidi_run_end = _convert_pos(p_sd, p_sd->bidi_override[ov].x + start + _bidi_run_start + _bidi_run_length);
int32_t bidi_run_start = _convert_pos(p_sd, ov_start + start + _bidi_run_start);
int32_t bidi_run_end = _convert_pos(p_sd, ov_start + start + _bidi_run_start + _bidi_run_length);
for (int j = 0; j < sd_size; j++) {
if ((sd_glyphs[j].start >= bidi_run_start) && (sd_glyphs[j].end <= bidi_run_end)) {
@ -5587,7 +5588,7 @@ bool TextServerAdvanced::_shaped_text_shape(const RID &p_shaped) {
}
UErrorCode err = U_ZERO_ERROR;
UBiDi *bidi_iter = ubidi_openSized(end, 0, &err);
UBiDi *bidi_iter = ubidi_openSized(end - start, 0, &err);
ERR_FAIL_COND_V_MSG(U_FAILURE(err), false, u_errorName(err));
switch (static_cast<TextServer::Direction>(sd->bidi_override[ov].z)) {
@ -5605,7 +5606,7 @@ bool TextServerAdvanced::_shaped_text_shape(const RID &p_shaped) {
if (direction != UBIDI_NEUTRAL) {
ubidi_setPara(bidi_iter, data + start, end - start, direction, nullptr, &err);
} else {
ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_DEFAULT_LTR, nullptr, &err);
ubidi_setPara(bidi_iter, data + start, end - start, base_para_direction, nullptr, &err);
}
} break;
}
@ -5637,8 +5638,8 @@ bool TextServerAdvanced::_shaped_text_shape(const RID &p_shaped) {
}
}
int32_t bidi_run_start = _convert_pos(sd, sd->bidi_override[ov].x - sd->start + _bidi_run_start);
int32_t bidi_run_end = _convert_pos(sd, sd->bidi_override[ov].x - sd->start + _bidi_run_start + _bidi_run_length);
int32_t bidi_run_start = _convert_pos(sd, start + _bidi_run_start);
int32_t bidi_run_end = _convert_pos(sd, start + _bidi_run_start + _bidi_run_length);
// Shape runs.