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wayland: Only set the surface opaque region if EGL transparency is disabled 

Check if the "SDL_VIDEO_EGL_ALLOW_TRANSPARENCY" hint is enabled and don't mark surfaces as opqaue if it is.
This commit is contained in:
Frank Praznik 2022-05-16 18:18:55 -04:00 committed by Sam Lantinga
parent a20516d4f3
commit 146ea9b0e1
1 changed files with 25 additions and 13 deletions
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12
src/video/wayland/SDL_waylandwindow.c
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@ -44,6 +44,12 @@
#include <libdecor.h>
#endif
SDL_FORCE_INLINE SDL_bool
EGLTransparencyEnabled()
{
return SDL_GetHintBoolean(SDL_HINT_VIDEO_EGL_ALLOW_TRANSPARENCY, SDL_FALSE);
}
SDL_FORCE_INLINE SDL_bool
FloatEqual(float a, float b)
{
@ -264,11 +270,13 @@ ConfigureWindowGeometry(SDL_Window *window)
data->pointer_scale_x = (float)fs_width / (float)output->width;
data->pointer_scale_y = (float)fs_height / (float)output->height;
if (!EGLTransparencyEnabled()) {
region = wl_compositor_create_region(viddata->compositor);
wl_region_add(region, data->viewport_rect.x, data->viewport_rect.y,
data->viewport_rect.w, data->viewport_rect.h);
wl_surface_set_opaque_region(data->surface, region);
wl_region_destroy(region);
}
} else {
if (NeedViewport(window)) {
wl_surface_set_buffer_scale(data->surface, 1);
@ -285,11 +293,13 @@ ConfigureWindowGeometry(SDL_Window *window)
data->pointer_scale_x = 1.0f;
data->pointer_scale_y = 1.0f;
if (!EGLTransparencyEnabled()) {
region = wl_compositor_create_region(viddata->compositor);
wl_region_add(region, 0, 0, window->w, window->h);
wl_surface_set_opaque_region(data->surface, region);
wl_region_destroy(region);
}
}
/* Recreate the pointer confinement region when the window geometry changes. */
if (data->confined_pointer) {
@ -1869,10 +1879,12 @@ int Wayland_CreateWindow(_THIS, SDL_Window *window)
}
#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
if (!EGLTransparencyEnabled()) {
region = wl_compositor_create_region(c->compositor);
wl_region_add(region, 0, 0, window->w, window->h);
wl_surface_set_opaque_region(data->surface, region);
wl_region_destroy(region);
}
if (c->relative_mouse_mode) {
Wayland_input_lock_pointer(c->input);