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wayland: Use the backbuffer size for determining if a resize event is required 

In some cases, a backbuffer size update may not be accompanied by a resize event if the window size and/or scale were updated before the new backbuffer size was recomputed. Instead of the scale, use the old/new backbuffer sizes to determine if a resize event is required so that a backbuffer size change will always be followed by a resize event.
This commit is contained in:
Frank Praznik 2022-09-12 22:39:44 -04:00 committed by Sam Lantinga
parent 4f1b408a72
commit 929d5b80c6
1 changed files with 6 additions and 3 deletions
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9
src/video/wayland/SDL_waylandwindow.c
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@ -2109,8 +2109,9 @@ Wayland_HandleResize(SDL_Window *window, int width, int height, float scale)
{ {
SDL_WindowData *data = (SDL_WindowData *) window->driverdata; SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
SDL_VideoData *viddata = data->waylandData; SDL_VideoData *viddata = data->waylandData;
int old_w = window->w, old_h = window->h; const int old_w = window->w, old_h = window->h;
float old_scale = data->scale_factor; const int old_drawable_width = data->drawable_width;
const int old_drawable_height = data->drawable_height;
/* Update the window geometry. */ /* Update the window geometry. */
window->w = width; window->w = width;
@ -2118,7 +2119,9 @@ Wayland_HandleResize(SDL_Window *window, int width, int height, float scale)
data->scale_factor = scale; data->scale_factor = scale;
ConfigureWindowGeometry(window); ConfigureWindowGeometry(window);
if (data->needs_resize_event || old_w != width || old_h != height || !FloatEqual(data->scale_factor, old_scale)) { if (data->needs_resize_event ||
old_w != width || old_h != height ||
old_drawable_width != data->drawable_width || old_drawable_height != data->drawable_height) {
/* We may have already updated window w/h (or only adjusted scale factor), /* We may have already updated window w/h (or only adjusted scale factor),
* so we must override the deduplication logic in the video core */ * so we must override the deduplication logic in the video core */
window->w = 0; window->w = 0;