# SDL: chore: rename integer mode field names

**URL:** <https://discourse.libsdl.org/t/sdl-chore-rename-integer-mode-field-names/58733>\
**Category:** SDL Commits\
**Created:** [March 22, 2025, 4:32pm UTC](https://discourse.libsdl.org/t/sdl-chore-rename-integer-mode-field-names/58733 "2025-03-22T16:32:51Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![SDLPushPostBot](https://discourse.libsdl.org/user_avatar/discourse.libsdl.org/sdlpushpostbot/32/4370_2.png) [@SDLPushPostBot](https://discourse.libsdl.org/u/SDLPushPostBot)\
**Post date:** [March 22, 2025, 4:32pm UTC](https://discourse.libsdl.org/t/sdl-chore-rename-integer-mode-field-names/58733/1 "2025-03-22T16:32:52Z")

</div>

> <https://github.com/libsdl-org/SDL/commit/f52f982b1e9ce2f510f2c26c6119e79dbb5b20a0>

```diff
From f52f982b1e9ce2f510f2c26c6119e79dbb5b20a0 Mon Sep 17 00:00:00 2001
From: expikr <[EMAIL REDACTED]>
Date: Wed, 19 Mar 2025 02:05:17 +0800
Subject: [PATCH] chore: rename integer mode field names

---
 src/events/SDL_mouse.c | 18 +++++++++---------
 src/events/SDL_mouse_c.h | 12 +++++++-----
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/src/events/SDL_mouse.c b/src/events/SDL_mouse.c
index 8212431b96c56..971ec3562de41 100644
--- a/src/events/SDL_mouse.c
+++ b/src/events/SDL_mouse.c
@@ -239,9 +239,9 @@ static void SDLCALL SDL_MouseIntegerModeChanged(void *userdata, const char *name
     SDL_Mouse *mouse = (SDL_Mouse *)userdata;
 
     if (hint && *hint) {
- mouse->integer_mode = (Uint8)SDL_atoi(hint);
+ mouse->integer_mode_flags = (Uint8)SDL_atoi(hint);
     } else {
- mouse->integer_mode = 0;
+ mouse->integer_mode_flags = 0;
     }
 }
 
@@ -739,10 +739,10 @@ static void SDL_PrivateSendMouseMotion(Uint64 timestamp, SDL_Window *window, SDL
                 y *= mouse->normal_speed_scale;
             }
         }
- if (mouse->integer_mode >= 1) {
+ if (mouse->integer_mode_flags & 1) {
             // Accumulate the fractional relative motion and only process the integer portion
- mouse->xrel_frac = SDL_modff(mouse->xrel_frac + x, &x);
- mouse->yrel_frac = SDL_modff(mouse->yrel_frac + y, &y);
+ mouse->integer_mode_residual_motion_x = SDL_modff(mouse->integer_mode_residual_motion_x + x, &x);
+ mouse->integer_mode_residual_motion_y = SDL_modff(mouse->integer_mode_residual_motion_y + y, &y);
         }
         xrel = x;
         yrel = y;
@@ -750,7 +750,7 @@ static void SDL_PrivateSendMouseMotion(Uint64 timestamp, SDL_Window *window, SDL
         y = (mouse->last_y + yrel);
         ConstrainMousePosition(mouse, window, &x, &y);
     } else {
- if (mouse->integer_mode >= 1) {
+ if (mouse->integer_mode_flags & 1) {
             // Discard the fractional component from absolute coordinates
             x = SDL_truncf(x);
             y = SDL_truncf(y);
@@ -1028,9 +1028,9 @@ void SDL_SendMouseWheel(Uint64 timestamp, SDL_Window *window, SDL_MouseID mouseI
     }
 
     // Accumulate fractional wheel motion if integer mode is enabled
- if (mouse->integer_mode >= 2) {
- mouse->wheel_x_frac = SDL_modff(mouse->wheel_x_frac + x, &x);
- mouse->wheel_y_frac = SDL_modff(mouse->wheel_y_frac + y, &y);
+ if (mouse->integer_mode_flags & 2) {
+ mouse->integer_mode_residual_scroll_x = SDL_modff(mouse->integer_mode_residual_scroll_x + x, &x);
+ mouse->integer_mode_residual_scroll_y = SDL_modff(mouse->integer_mode_residual_scroll_y + y, &y);
     }
 
     if (x == 0.0f && y == 0.0f) {
diff --git a/src/events/SDL_mouse_c.h b/src/events/SDL_mouse_c.h
index 36539eb5ea60b..6e235548dd793 100644
--- a/src/events/SDL_mouse_c.h
+++ b/src/events/SDL_mouse_c.h
@@ -95,6 +95,13 @@ typedef struct
     SDL_MouseMotionTransformCallback InputTransform;
     void *input_transform_data;
 
+ // integer mode data
+ Uint8 integer_mode_flags; // 1 to enable mouse quantization, 2 to enable wheel quantization
+ float integer_mode_residual_motion_x;
+ float integer_mode_residual_motion_y;
+ float integer_mode_residual_scroll_x;
+ float integer_mode_residual_scroll_y;
+
     // Data common to all mice
     SDL_Window *focus;
     float x;
@@ -102,13 +109,8 @@ typedef struct
     float x_accu;
     float y_accu;
     float last_x, last_y; // the last reported x and y coordinates
- float xrel_frac;
- float yrel_frac;
- float wheel_x_frac;
- float wheel_y_frac;
     double click_motion_x;
     double click_motion_y;
- Uint8 integer_mode;
     bool has_position;
     bool relative_mode;
     bool relative_mode_warp_motion;

```