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| author | Michael Drake <tlsa@netsurf-browser.org> | 2022-12-16 14:07:15 +0000 |
|---|---|---|
| committer | Michael Drake <mdrake.unique@gmail.com> | 2022-12-16 14:18:46 +0000 |
| commit | dbd7f5bcd8a6500c7236bbe67e4a38c48a613b20 (patch) | |
| tree | b02e3a1bee38bbb952a2ead319a4e13e779db066 /content/handlers/html | |
| parent | 71765dd1e8dc968f15ce359f7e604585aa428f90 (diff) | |
| download | netsurf-dbd7f5bcd8a6500c7236bbe67e4a38c48a613b20.tar.gz netsurf-dbd7f5bcd8a6500c7236bbe67e4a38c48a613b20.tar.bz2 | |
html: layout: flex: grow: Avoid rounding error accumulation
Diffstat (limited to 'content/handlers/html')
| -rw-r--r-- | content/handlers/html/layout_flex.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/content/handlers/html/layout_flex.c b/content/handlers/html/layout_flex.c index ac0b88827..3a0fa4aa0 100644 --- a/content/handlers/html/layout_flex.c +++ b/content/handlers/html/layout_flex.c @@ -629,8 +629,10 @@ static inline void layout_flex__distribute_free_main( size_t item_count = line->first + line->count; if (grow) { + css_fixed remainder = 0; for (size_t i = line->first; i < item_count; i++) { struct flex_item_data *item = &ctx->item.data[i]; + css_fixed result; css_fixed ratio; if (item->freeze) { @@ -638,11 +640,12 @@ static inline void layout_flex__distribute_free_main( } ratio = FDIV(item->grow, unfrozen_factor_sum); + result = FMUL(INTTOFIX(remaining_free_main), ratio) + + remainder; item->target_main_size = item->base_size + - FIXTOINT(FMUL( - INTTOFIX(remaining_free_main), - ratio)); + FIXTOINT(result); + remainder = FIXFRAC(result); } } else { css_fixed scaled_shrink_factor_sum = 0; |