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Fix divide-by-zero when videodata->ime_candpgsize is zero. We're seeing this happen in Dota in the wild.

This commit is contained in:
Drew Bliss 2017-04-06 13:27:51 -07:00
parent 66555f6115
commit a4dbf56574
1 changed files with 5 additions and 1 deletions
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6
src/video/windows/SDL_windowskeyboard.c
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@ -834,7 +834,11 @@ IME_GetCandidateList(HIMC himc, SDL_VideoData *videodata)
videodata->ime_candpgsize = i - page_start; videodata->ime_candpgsize = i - page_start;
} else { } else {
videodata->ime_candpgsize = SDL_min(cand_list->dwPageSize, MAX_CANDLIST); videodata->ime_candpgsize = SDL_min(cand_list->dwPageSize, MAX_CANDLIST);
page_start = (cand_list->dwSelection / videodata->ime_candpgsize) * videodata->ime_candpgsize; if (videodata->ime_candpgsize > 0) {
page_start = (cand_list->dwSelection / videodata->ime_candpgsize) * videodata->ime_candpgsize;
} else {
page_start = 0;
}
} }
SDL_memset(&videodata->ime_candidates, 0, sizeof(videodata->ime_candidates)); SDL_memset(&videodata->ime_candidates, 0, sizeof(videodata->ime_candidates));
for (i = page_start, j = 0; (DWORD)i < cand_list->dwCount && j < (int)videodata->ime_candpgsize; i++, j++) { for (i = page_start, j = 0; (DWORD)i < cand_list->dwCount && j < (int)videodata->ime_candpgsize; i++, j++) {