From e7447f38cf6797eed5a4fbfe763eeee8e9d1dc4a Mon Sep 17 00:00:00 2001
From: Luflosi <luflosi@luflosi.de>
Date: Sun, 24 May 2020 19:54:45 +0200
Subject: [PATCH] Fix half-axis to gamepad button value mapping

From upstream: https://github.com/glfw/glfw/commit/c32dc3a0856e339d8de582582fcbedec430e14b4.
---
 glfw/input.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/glfw/input.c b/glfw/input.c
index d5121c75f..cd1e3f2c6 100644
--- a/glfw/input.c
+++ b/glfw/input.c
@@ -1436,8 +1436,18 @@ GLFWAPI int glfwGetGamepadState(int jid, GLFWgamepadstate* state)
         if (e->type == _GLFW_JOYSTICK_AXIS)
         {
             const float value = js->axes[e->index] * e->axisScale + e->axisOffset;
-            if (value > 0.f)
-                state->buttons[i] = GLFW_PRESS;
+            // HACK: This should be baked into the value transform
+            // TODO: Bake into transform when implementing output modifiers
+            if (e->axisScale < 0 || e->axisOffset < 0)
+            {
+                if (value > 0.f)
+                    state->buttons[i] = GLFW_PRESS;
+            }
+            else
+            {
+                if (value < 0.f)
+                    state->buttons[i] = GLFW_PRESS;
+            }
         }
         else if (e->type == _GLFW_JOYSTICK_HATBIT)
         {