vrend: fix internal format mismatch for BGRX EGL-backed resources

BGRX resources backed by EGL images are given GL_RGB8 internal format
on creation outside of virglrenderer, so we must accomodate when
creating a texture view.

Signed-off-by: Ryan Neph <ryanneph@google.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>

src/vrend_renderer.c

@@ -1893,6 +1893,11 @@ int vrend_create_surface(struct vrend_context *ctx,
          GLenum target = res->target;
          GLenum internalformat = tex_conv_table[format].internalformat;
 
+         if (res->base.format == VIRGL_FORMAT_B8G8R8X8_UNORM &&
+             has_bit(res->storage_bits, VREND_STORAGE_EGL_IMAGE)) {
+            internalformat = GL_RGB8;
+         }
+
          VREND_DEBUG(dbg_tex, ctx, "Create texture view from %s for %s\n",
                      util_format_name(res->base.format),
                      util_format_name(surf->format));