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Added overflow check for blur radius (#1847)

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* internal: added overflow check for blur radius

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Co-authored-by: vaxerski <43317083+vaxerski@users.noreply.github.com>
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staz 2023-03-21 19:01:24 +00:00 • committed by GitHub
parent adf5d8a114
commit 5ce91bb0fd
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2 changed files with 3 additions and 2 deletions
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3
src/events/Monitors.cpp
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@ -241,7 +241,8 @@ void Events::listener_monitorFrame(void* owner, void* data) {
// TODO: can this be optimized?
static auto* const PBLURSIZE = &g_pConfigManager->getConfigValuePtr("decoration:blur_size")->intValue;
static auto* const PBLURPASSES = &g_pConfigManager->getConfigValuePtr("decoration:blur_passes")->intValue;
const auto BLURRADIUS = *PBLURSIZE * pow(2, *PBLURPASSES); // is this 2^pass? I don't know but it works... I think.
const auto BLURRADIUS =
*PBLURPASSES > 10 ? pow(2, 15) : std::clamp(*PBLURSIZE, (int64_t)1, (int64_t)40) * pow(2, *PBLURPASSES); // is this 2^pass? I don't know but it works... I think.
// now, prep the damage, get the extended damage region
wlr_region_expand(&damage, &damage, BLURRADIUS); // expand for proper blurring