From: José Fonseca <jrfonseca@tungstengraphics.com>
Date: Tue, 6 May 2008 05:57:18 +0000 (+0900)
Subject: gallium: New pipe_screen interface to overlay a texture on existing memory.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6361d6f48d13ce481253faf106fba5c6a41488ed;p=mesa.git

gallium: New pipe_screen interface to overlay a texture on existing memory.
---

diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index c080579c26e..cc8430dae16 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -89,6 +89,18 @@ struct pipe_screen {
    struct pipe_texture * (*texture_create)(struct pipe_screen *,
                                            const struct pipe_texture *templat);
 
+   /**
+    * Create a new texture object, using the given template info, but on top of 
+    * existing memory.
+    * 
+    * It is assumed that the buffer data is layed out according to the expected
+    * by the hardware. NULL will be returned if any inconsistency is found.  
+    */
+   struct pipe_texture * (*texture_blanket)(struct pipe_screen *,
+                                            const struct pipe_texture *templat,
+                                            const unsigned *pitch,
+                                            struct pipe_buffer *buffer);
+
    void (*texture_release)(struct pipe_screen *,
                            struct pipe_texture **pt);