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gdk/surface: Don't leak the EGLSurface

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Each time we create a new window, we create a new EGLSurface. Each time
we destroy a window, we failed to destroy the EGLSurface, due to passing
a GdkDisplay instead of a EGLDisplay to eglDestroySurface().

This effectively leaked not only the EGL surface metadata, but also the
associated DMA buffers. For applications where one opens and closes many
windows over the lifetime of the application, and where the application
runs for a long time; for example a terminal emulator server, this
causes a significant memory leak, as the memory will only ever be freed
once once the application process itself exits, if ever.

Fix this passing an actual EGLDisplay instead of an GdkDisplay, to
eglDestroySurface().
This commit is contained in:
Jonas Ådahl 2024-08-06 23:42:11 +02:00
parent 8089222fc3
commit 7fd65cc3c1
1 changed files with 3 additions and 1 deletions
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4
gdk/gdksurface.c
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@ -1132,8 +1132,10 @@ gdk_surface_set_egl_native_window (GdkSurface *self,
if (priv->egl_surface != NULL)
{
GdkDisplay *display = gdk_surface_get_display (self);
gdk_gl_context_clear_current_if_surface (self);
eglDestroySurface (gdk_surface_get_display (self), priv->egl_surface);
eglDestroySurface (gdk_display_get_egl_display (display), priv->egl_surface);
priv->egl_surface = NULL;
}