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Code Issues Releases Wiki Activity

ircd::magick: Fix aspect on scale method. (#161)

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This commit is contained in:
Jason Volk 2020-11-19 14:07:49 -08:00
parent 92666a5d09
commit d861132d95
1 changed files with 20 additions and 1 deletions
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21
ircd/magick.cc
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@ -332,7 +332,26 @@ ircd::magick::thumbnail::thumbnail(const const_buffer &in,
{
in, out, [&dim](const auto &image)
{
return callex<Image *>(ThumbnailImage, std::get<const Image *>(image), dim.first, dim.second);
const auto &img_p
{
std::get<const Image *>(image)
};
const auto &img_x(img_p->columns);
const auto &img_y(img_p->rows);
const auto &[req_x, req_y] {dim};
const bool aspect
{
req_x * img_y < req_y * img_x
};
const dimensions scaled
{
aspect? req_y * img_x / img_y : req_x,
aspect? req_y : req_x * img_y / img_x,
};
return callex<Image *>(ThumbnailImage, img_p, scaled.first, scaled.second);
}
};
}