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chore: rename integer mode field names

This commit is contained in:
expikr 2025-03-19 02:05:17 +08:00 committed by Sam Lantinga
parent 8407a16255
commit f52f982b1e
2 changed files with 16 additions and 14 deletions
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18
src/events/SDL_mouse.c
View File

@ -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) {

12
src/events/SDL_mouse_c.h
View File

@ -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;