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Improved fix for bug 4748 - Calling WIN_UpdateClipCursor() / WIN_UpdateClipCursorForWindows() on WIN_PumpEvents() causes beeping and choppy mouse cursor movement, right-click doesn't work

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This commit is contained in:
Sam Lantinga 2020-02-12 12:26:27 -08:00
parent afb70f2681
commit e261bd4205
1 changed files with 20 additions and 15 deletions
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35
src/video/windows/SDL_windowswindow.c
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@ -909,7 +909,7 @@ WIN_UpdateClipCursor(SDL_Window *window)
{
SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
SDL_Mouse *mouse = SDL_GetMouse();
RECT rect;
RECT rect, clipped_rect;
if (data->in_title_click || data->focus_click_pending) {
return;
@ -918,38 +918,43 @@ WIN_UpdateClipCursor(SDL_Window *window)
data->skip_update_clipcursor = SDL_FALSE;
return;
}
if (!GetClipCursor(&clipped_rect)) {
return;
}
if ((mouse->relative_mode || (window->flags & SDL_WINDOW_INPUT_GRABBED)) &&
(window->flags & SDL_WINDOW_INPUT_FOCUS)) {
if (mouse->relative_mode && !mouse->relative_mode_warp) {
LONG cx, cy;
GetWindowRect(data->hwnd, &rect);
if (GetWindowRect(data->hwnd, &rect)) {
LONG cx, cy;
cx = (rect.left + rect.right) / 2;
cy = (rect.top + rect.bottom) / 2;
cx = (rect.left + rect.right) / 2;
cy = (rect.top + rect.bottom) / 2;
/* Make an absurdly small clip rect */
rect.left = cx - 1;
rect.right = cx + 1;
rect.top = cy - 1;
rect.bottom = cy + 1;
/* Make an absurdly small clip rect */
rect.left = cx - 1;
rect.right = cx + 1;
rect.top = cy - 1;
rect.bottom = cy + 1;
if (ClipCursor(&rect)) {
data->cursor_clipped_rect = rect;
if (SDL_memcmp(&rect, &clipped_rect, sizeof(rect)) != 0) {
if (ClipCursor(&rect)) {
data->cursor_clipped_rect = rect;
}
}
}
} else {
RECT clipped_rect;
if (GetClientRect(data->hwnd, &rect) && !IsRectEmpty(&rect)) {
ClientToScreen(data->hwnd, (LPPOINT) & rect);
ClientToScreen(data->hwnd, (LPPOINT) & rect + 1);
if (!GetClipCursor(&clipped_rect) || SDL_memcmp(&rect, &clipped_rect, sizeof(rect)) != 0) {
if (SDL_memcmp(&rect, &clipped_rect, sizeof(rect)) != 0) {
if (ClipCursor(&rect)) {
data->cursor_clipped_rect = rect;
}
}
}
}
} else if (GetClipCursor(&rect) && SDL_memcmp(&rect, &data->cursor_clipped_rect, sizeof(rect)) == 0) {
} else if (SDL_memcmp(&clipped_rect, &data->cursor_clipped_rect, sizeof(clipped_rect)) == 0) {
ClipCursor(NULL);
SDL_zero(data->cursor_clipped_rect);
}