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Fix bug when line starts before a chunk and ends after it

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When a line started in a chunk, the algorithm only looked for its end in the following chunk, but the end of the line may actually be located even further. Instead, in this commit we look for the next new line until the end of the whole buffer.
This commit is contained in:
Neptilo
2018-02-09 11:46:43 +01:00
committed by GitHub
parent 5113cd65cf
commit 73e9b4dc3a
1 changed files with 4 additions and 5 deletions
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9
experimental/tinyobj_loader_opt.h
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@@ -1329,11 +1329,10 @@ bool parseObj(attrib_t *attrib, std::vector<shape_t> *shapes,
}
}
// Find extra line which spand across chunk boundary.
if ((t < num_threads) && (buf[end_idx - 1] != '\n')) {
auto extra_span_idx = (std::min)(end_idx - 1 + chunk_size, len);
for (size_t i = end_idx; i < extra_span_idx; i++) {
if (is_line_ending(buf, i, extra_span_idx)) {
// If at least one line started in this chunk, find where it ends in the rest of the buffer
if ((prev_pos != start_idx) && (t < num_threads) && (buf[end_idx - 1] != '\n')) {
for (size_t i = end_idx; i < len; i++) {
if (is_line_ending(buf, i, len)) {
LineInfo info;
info.pos = prev_pos;
info.len = i - prev_pos;