softpipe: rework to use the llvmpipe winsys

Promote the llvmpipe winsys more or less unchanged to
state_trackers/sw_winsys.h.

Some minor breakages:
  - softpipe::texture_blanket is broken, but scheduled for removal anyway.
  - haven't fixed up g3vdl yet.

1 files changed, 9 insertions, 2 deletions

diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h
index 2ef64e1e7c3..e8d17ce7daf 100644
--- a/src/gallium/drivers/softpipe/sp_texture.h
+++ b/src/gallium/drivers/softpipe/sp_texture.h
@@ -45,9 +45,16 @@ struct softpipe_texture
    unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS];
    unsigned stride[PIPE_MAX_TEXTURE_LEVELS];
 
-   /* The data is held here:
+   /**
+    * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
+    * usage.
+    */
+   struct sw_displaytarget *dt;
+
+   /**
+    * Malloc'ed data for regular textures, or a mapping to dt above.
     */
-   struct pipe_buffer *buffer;
+   void *data;
 
    /* True if texture images are power-of-two in all dimensions:
     */