egl: eglMakeCurrent should accept an uninitialized display.

When no context or surface are given, the display is allowed to be
uninitialized.  Most drivers cannot handle an uninitialized display.
But they are updated to at least throw a fatal message.

1 files changed, 30 insertions, 10 deletions

diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.c b/src/gallium/state_trackers/egl/common/egl_g3d.c
index aa4f012216..657c771a6b 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d.c
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.c
@@ -672,21 +672,30 @@ egl_g3d_create_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
    return &gctx->base;
 }
 
-static EGLBoolean
-egl_g3d_destroy_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
+/**
+ * Destroy a context.
+ */
+static void
+destroy_context(_EGLDisplay *dpy, _EGLContext *ctx)
 {
    struct egl_g3d_context *gctx = egl_g3d_context(ctx);
 
-   if (_eglIsContextBound(&gctx->base))
-      return EGL_TRUE;
+   /* FIXME a context might live longer than its display */
+   if (!dpy->Initialized)
+      _eglLog(_EGL_FATAL, "destroy a context with an unitialized display");
 
    egl_g3d_realloc_context(dpy, &gctx->base);
-
-   /* it will destroy pipe context */
+   /* it will destroy the associated pipe context */
    gctx->stapi->st_destroy_context(gctx->st_ctx);
 
    free(gctx);
+}
 
+static EGLBoolean
+egl_g3d_destroy_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
+{
+   if (!_eglIsContextBound(ctx))
+      destroy_context(dpy, ctx);
    return EGL_TRUE;
 }
 
@@ -817,17 +826,28 @@ egl_g3d_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
    return &gsurf->base;
 }
 
-static EGLBoolean
-egl_g3d_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
+/**
+ * Destroy a surface.
+ */
+static void
+destroy_surface(_EGLDisplay *dpy, _EGLSurface *surf)
 {
    struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
 
-   if (_eglIsSurfaceBound(&gsurf->base))
-         return EGL_TRUE;
+   /* FIXME a surface might live longer than its display */
+   if (!dpy->Initialized)
+      _eglLog(_EGL_FATAL, "destroy a surface with an unitialized display");
 
    pipe_surface_reference(&gsurf->render_surface, NULL);
    gsurf->native->destroy(gsurf->native);
    free(gsurf);
+}
+
+static EGLBoolean
+egl_g3d_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
+{
+   if (!_eglIsSurfaceBound(surf))
+      destroy_surface(dpy, surf);
    return EGL_TRUE;
 }