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apply multiplier scale after system scale

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expikr 2025-01-13 00:16:56 +08:00 • committed by Sam Lantinga
parent ea859fba3a
commit 9a83fa026d
2 changed files with 6 additions and 4 deletions
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2
include/SDL3/SDL_hints.h
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@ -2534,7 +2534,7 @@ extern "C" {
* - "1": Relative mouse motion will be scaled using the system mouse
* acceleration curve.
*
* If SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE is set, that will apply before the
* If SDL_HINT_MOUSE_RELATIVE_SPEED_SCALE is set, that will be applied after
* system speed scale.
*
* This hint can be set anytime.

8
src/events/SDL_mouse.c
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@ -669,13 +669,15 @@ static void SDL_PrivateSendMouseMotion(Uint64 timestamp, SDL_Window *window, SDL
if (relative) {
if (mouse->relative_mode) {
if (mouse->enable_relative_system_scale) {
if (mouse->ApplySystemScale) {
mouse->ApplySystemScale(mouse->system_scale_data, timestamp, window, mouseID, &x, &y);
}
}
if (mouse->enable_relative_speed_scale) {
x *= mouse->relative_speed_scale;
y *= mouse->relative_speed_scale;
}
if (mouse->enable_relative_system_scale && mouse->ApplySystemScale) {
mouse->ApplySystemScale(mouse->system_scale_data, timestamp, window, mouseID, &x, &y);
}
} else {
if (mouse->enable_normal_speed_scale) {
x *= mouse->normal_speed_scale;