From 5b6545b1410e2fa907d12f13d37ef710be654c2a Mon Sep 17 00:00:00 2001
From: german77 <juangerman-13@hotmail.com>
Date: Thu, 19 Nov 2020 11:30:52 -0600
Subject: [PATCH] Modify rumble amplification
---
src/input_common/gcadapter/gc_poller.cpp | 4 ++--
src/input_common/sdl/sdl_impl.cpp | 3 +--
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/src/input_common/gcadapter/gc_poller.cpp b/src/input_common/gcadapter/gc_poller.cpp
index fe57c13a54..d95574bb55 100644
--- a/src/input_common/gcadapter/gc_poller.cpp
+++ b/src/input_common/gcadapter/gc_poller.cpp
@@ -302,8 +302,8 @@ public:
bool SetRumblePlay(f32 amp_low, f32 freq_low, f32 amp_high, f32 freq_high) const override {
const auto mean_amplitude = (amp_low + amp_high) * 0.5f;
- const auto processed_amplitude = static_cast<u8>(
- pow(mean_amplitude, 0.5f) * (3.0f - 2.0f * pow(mean_amplitude, 0.15f)) * 0x8);
+ const auto processed_amplitude =
+ static_cast<u8>((mean_amplitude + std::pow(mean_amplitude, 0.3f)) * 0.5f * 0x8);
return gcadapter->RumblePlay(port, processed_amplitude);
}
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp
index 8c48bb861c..c395d96cf6 100644
--- a/src/input_common/sdl/sdl_impl.cpp
+++ b/src/input_common/sdl/sdl_impl.cpp
@@ -402,8 +402,7 @@ public:
bool SetRumblePlay(f32 amp_low, f32 freq_low, f32 amp_high, f32 freq_high) const override {
const auto process_amplitude = [](f32 amplitude) {
- return static_cast<u16>(std::pow(amplitude, 0.5f) *
- (3.0f - 2.0f * std::pow(amplitude, 0.15f)) * 0xFFFF);
+ return static_cast<u16>((amplitude + std::pow(amplitude, 0.3f)) * 0.5f * 0xFFFF);
};
const auto processed_amp_low = process_amplitude(amp_low);