gallium: introduce 'pipe_screen' for context-independent functions

This will allow creating textures before a rendering context exists, for example.
Only implemented in i915 driver for now.  i915pipe->texture_create() just
dispatches through to the i915screen->texture_create() to avoid state tracker
changes for now.

1 files changed, 10 insertions, 1 deletions

diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h
index 21d4827e675..a7e97fcd7db 100644
--- a/src/gallium/include/pipe/p_inlines.h
+++ b/src/gallium/include/pipe/p_inlines.h
@@ -30,6 +30,7 @@
 
 #include "p_context.h"
 #include "p_defines.h"
+#include "p_screen.h"
 #include "p_winsys.h"
 
 
@@ -107,7 +108,15 @@ pipe_texture_reference(struct pipe_texture **ptr,
 
    if (*ptr) {
       struct pipe_context *pipe = (*ptr)->pipe;
-      pipe->texture_release(pipe, ptr);
+      /* XXX temporary mess here */
+      if (pipe) {
+         pipe->texture_release(pipe, ptr);
+      }
+      else {
+         struct pipe_screen *screen = (*ptr)->screen;
+         screen->texture_release(screen, ptr);
+      }
+
       assert(!*ptr);
    }