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common/input: Avoid numerous large copies of CallbackStatus

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CallbackStatus instances aren't the cheapest things to copy around
(relative to everything else), given that they're currently 520 bytes in
size and are currently copied numerous times when callbacks are invoked.

Instead, we can pass the status by const reference to avoid all the
copying.
This commit is contained in:
Lioncash 2021-12-13 21:09:28 -05:00
parent 319b0ed324
commit 726de453bb
9 changed files with 171 additions and 129 deletions
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4
src/common/input.h
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@ -227,7 +227,7 @@ struct CallbackStatus {
// Triggered once every input change
struct InputCallback {
std::function<void(CallbackStatus)> on_change;
std::function<void(const CallbackStatus&)> on_change;
};
/// An abstract class template for an input device (a button, an analog input, etc.).
@ -247,7 +247,7 @@ public:
}
// Triggers the function set in the callback
void TriggerOnChange(CallbackStatus status) {
void TriggerOnChange(const CallbackStatus& status) {
if (callback.on_change) {
callback.on_change(status);
}