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wayland: Make external window reconfiguration more robust

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External window surfaces can't be destroyed and recreated, so try our best to reconfigure them when switching between GL profiles, or between GL and Vulkan.
This commit is contained in:
Frank Praznik
2026-06-19 12:03:28 -04:00
parent 4c28a67cd5
commit b3f8367134
2 changed files with 53 additions and 14 deletions
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27
src/video/SDL_video.c
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@@ -2666,11 +2666,6 @@ static bool SDL_ReconfigureWindowInternal(SDL_Window *window, SDL_WindowFlags fl
return false;
}
// Only attempt to reconfigure if the window has no existing graphics flags.
if (window->flags & (SDL_WINDOW_OPENGL | SDL_WINDOW_METAL | SDL_WINDOW_VULKAN)) {
return false;
}
const SDL_WindowFlags graphics_flags = flags & (SDL_WINDOW_OPENGL | SDL_WINDOW_METAL | SDL_WINDOW_VULKAN);
if (graphics_flags & (graphics_flags - 1)) {
return SDL_SetError("Conflicting window flags specified");
@@ -2686,6 +2681,28 @@ static bool SDL_ReconfigureWindowInternal(SDL_Window *window, SDL_WindowFlags fl
return SDL_ContextNotSupported("Metal");
}
if (!(window->flags & SDL_WINDOW_EXTERNAL)) {
// Only attempt to reconfigure if the window has no existing graphics flags.
if (window->flags & (SDL_WINDOW_OPENGL | SDL_WINDOW_METAL | SDL_WINDOW_VULKAN)) {
return false;
}
} else {
// Can't destroy and recreate an external window, so try our best to reconfigure it.
if (!_this->ReconfigureWindow(_this, window, 0)) {
return false;
}
// Reload the GL/Vulkan libraries in case the profile changed.
if (window->flags & SDL_WINDOW_OPENGL) {
SDL_GL_UnloadLibrary();
}
if (window->flags & SDL_WINDOW_VULKAN) {
SDL_Vulkan_UnloadLibrary();
}
window->flags &= ~(SDL_WINDOW_OPENGL | SDL_WINDOW_METAL | SDL_WINDOW_VULKAN);
}
SDL_DestroyWindowSurface(window);
if (graphics_flags & SDL_WINDOW_OPENGL) {

40
src/video/wayland/SDL_waylandwindow.c
View File

@@ -2870,8 +2870,9 @@ bool Wayland_ReconfigureWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_W
return false;
}
/* The caller guarantees that only one of the GL or Vulkan flags will be set,
* and the window will have no previous video flags.
/* The caller guarantees that only one of the GL or Vulkan flags will be set.
* Note that Vulkan doesn't require any specific configuration, so only EGL
* objects are added and removed as required.
*/
if (flags & SDL_WINDOW_OPENGL) {
if (!data->egl_window) {
@@ -2879,11 +2880,10 @@ bool Wayland_ReconfigureWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_W
}
#ifdef SDL_VIDEO_OPENGL_EGL
// Create the GLES window surface
data->egl_surface = SDL_EGL_CreateSurface(_this, window, (NativeWindowType)data->egl_window);
if (data->egl_surface == EGL_NO_SURFACE) {
return false; // SDL_EGL_CreateSurface should have set error
return false; // SDL_EGL_CreateSurface should have set the error.
}
#endif
@@ -2894,14 +2894,36 @@ bool Wayland_ReconfigureWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_W
data->gles_swap_frame_callback = wl_surface_frame(data->gles_swap_frame_surface_wrapper);
wl_callback_add_listener(data->gles_swap_frame_callback, &gles_swap_frame_listener, data);
}
} else {
#ifdef SDL_VIDEO_OPENGL_EGL
if (data->egl_surface) {
SDL_EGL_DestroySurface(_this, data->egl_surface);
data->egl_surface = EGL_NO_SURFACE;
}
#endif
return true;
} else if (flags & SDL_WINDOW_VULKAN) {
// Nothing to configure for Vulkan.
return true;
if (data->egl_window) {
WAYLAND_wl_egl_window_destroy(data->egl_window);
data->egl_window = NULL;
}
if (data->gles_swap_frame_callback) {
wl_callback_destroy(data->gles_swap_frame_callback);
data->gles_swap_frame_callback = NULL;
}
if (data->gles_swap_frame_surface_wrapper) {
WAYLAND_wl_proxy_wrapper_destroy(data->gles_swap_frame_surface_wrapper);
data->gles_swap_frame_surface_wrapper = NULL;
}
if (data->gles_swap_frame_event_queue) {
WAYLAND_wl_event_queue_destroy(data->gles_swap_frame_event_queue);
data->gles_swap_frame_event_queue = NULL;
}
}
return false;
return true;
}
bool Wayland_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_PropertiesID create_props)