Merge remote branch 'upstream/gallium-0.1' into nouveau-gallium-0.1

[mesa.git] / src / gallium / include / pipe / p_screen.h

diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index 26ac99d287d4bfe87e8b0bbcbb7f3bf5ffe3a4fb..b15affef7a559a350a04426856a7bc4aa6316d50 100644 (file)
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -77,11 +77,14 @@ struct pipe_screen {
    /**
     * Check if the given pipe_format is supported as a texture or
     * drawing surface.
-    * \param type  one of PIPE_TEXTURE, PIPE_SURFACE
+    * \param tex_usage  bitmask of PIPE_TEXTURE_USAGE_*
+    * \param flags  bitmask of PIPE_TEXTURE_GEOM_*
     */
    boolean (*is_format_supported)( struct pipe_screen *,
-                                   enum pipe_format format, 
-                                   uint type );
+                                   enum pipe_format format,
+                                   enum pipe_texture_target target,
+                                   unsigned tex_usage, 
+                                   unsigned geom_flags );
 
    /**
     * Create a new texture object, using the given template info.
@@ -89,6 +92,18 @@ 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);
 
@@ -96,7 +111,22 @@ struct pipe_screen {
    struct pipe_surface *(*get_tex_surface)(struct pipe_screen *,
                                            struct pipe_texture *texture,
                                            unsigned face, unsigned level,
-                                           unsigned zslice);
+                                           unsigned zslice,
+                                           unsigned usage );
+
+   /* Surfaces allocated by the above must be released here:
+    */
+   void (*tex_surface_release)( struct pipe_screen *,
+                                struct pipe_surface ** );
+   
+
+   void *(*surface_map)( struct pipe_screen *,
+                         struct pipe_surface *surface,
+                         unsigned flags );
+
+   void (*surface_unmap)( struct pipe_screen *,
+                          struct pipe_surface *surface );
+   
 };