Merge branch 'upstream-gallium-0.1' into darktama-gallium-0.1

Conflicts:

	src/mesa/drivers/dri/intel_winsys/intel_winsys_pipe.c
	src/mesa/pipe/Makefile
	src/mesa/pipe/draw/draw_vertex_fetch.c
	src/mesa/pipe/i915simple/i915_texture.c
	src/mesa/pipe/softpipe/sp_texture.c
	src/mesa/pipe/xlib/xm_winsys.c
	src/mesa/state_tracker/st_cb_fbo.c

44 files changed, 2666 insertions, 147 deletions

diff --git a/src/mesa/pipe/Makefile b/src/mesa/pipe/Makefile
index 5099b65885..e4b72e4940 100644
--- a/src/mesa/pipe/Makefile
+++ b/src/mesa/pipe/Makefile
@@ -1,4 +1,3 @@
-
 TOP = ../../..
 include $(TOP)/configs/current
 
@@ -7,7 +6,7 @@ ifeq ($(CONFIG_NAME), linux-cell)
 CELL_DIR = cell
 endif
 
-SUBDIRS = softpipe i915simple nv40 nv50 failover $(CELL_DIR)
+SUBDIRS = softpipe i915simple nv40 nv50 failover pipebuffer $(CELL_DIR)
 
 
 default: subdirs
diff --git a/src/mesa/pipe/draw/draw_clip.c b/src/mesa/pipe/draw/draw_clip.c
index e4c257a0ee..c50376f11f 100644
--- a/src/mesa/pipe/draw/draw_clip.c
+++ b/src/mesa/pipe/draw/draw_clip.c
@@ -415,6 +415,13 @@ static void clip_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void clip_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Allocate a new clipper stage.
  * \return pointer to new stage object
@@ -432,6 +439,7 @@ struct draw_stage *draw_clip_stage( struct draw_context *draw )
    clipper->stage.tri = clip_tri;
    clipper->stage.end = clip_end;
    clipper->stage.reset_stipple_counter = clip_reset_stipple_counter;
+   clipper->stage.destroy = clip_destroy;
 
    clipper->plane = draw->plane;
 
diff --git a/src/mesa/pipe/draw/draw_context.c b/src/mesa/pipe/draw/draw_context.c
index e7997180b5..6792a06a4e 100644
--- a/src/mesa/pipe/draw/draw_context.c
+++ b/src/mesa/pipe/draw/draw_context.c
@@ -42,7 +42,7 @@ struct draw_context *draw_create( void )
    struct draw_context *draw = CALLOC_STRUCT( draw_context );
 
 #if defined(__i386__) || defined(__386__)
-   draw->use_sse = GETENV( "GALLIUM_SSE" ) != NULL;
+   draw->use_sse = GETENV( "GALLIUM_NOSSE" ) == NULL;
 #else
    draw->use_sse = FALSE;
 #endif
@@ -85,6 +85,7 @@ struct draw_context *draw_create( void )
    draw->prim = ~0; /* != any of PIPE_PRIM_x */
 
    draw_vertex_cache_invalidate( draw );
+   draw_set_mapped_element_buffer( draw, 0, NULL );
 
    return draw;
 }
@@ -92,6 +93,16 @@ struct draw_context *draw_create( void )
 
 void draw_destroy( struct draw_context *draw )
 {
+   draw->pipeline.wide->destroy( draw->pipeline.wide );
+   draw->pipeline.unfilled->destroy( draw->pipeline.unfilled );
+   draw->pipeline.twoside->destroy( draw->pipeline.twoside );
+   draw->pipeline.offset->destroy( draw->pipeline.offset );
+   draw->pipeline.clip->destroy( draw->pipeline.clip );
+   draw->pipeline.flatshade->destroy( draw->pipeline.flatshade );
+   draw->pipeline.cull->destroy( draw->pipeline.cull );
+   draw->pipeline.feedback->destroy( draw->pipeline.feedback );
+   draw->pipeline.validate->destroy( draw->pipeline.validate );
+   draw->pipeline.rasterize->destroy( draw->pipeline.rasterize );
    FREE( draw->vcache.vertex[0] ); /* Frees all the vertices. */
    FREE( draw );
 }
diff --git a/src/mesa/pipe/draw/draw_cull.c b/src/mesa/pipe/draw/draw_cull.c
index f898834ba5..9bd53f45f2 100644
--- a/src/mesa/pipe/draw/draw_cull.c
+++ b/src/mesa/pipe/draw/draw_cull.c
@@ -116,6 +116,14 @@ static void cull_reset_stipple_counter( struct draw_stage *stage )
    stage->next->reset_stipple_counter( stage->next );
 }
 
+
+static void cull_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Create a new polygon culling stage.
  */
@@ -133,6 +141,7 @@ struct draw_stage *draw_cull_stage( struct draw_context *draw )
    cull->stage.tri = cull_tri;
    cull->stage.end = cull_end;
    cull->stage.reset_stipple_counter = cull_reset_stipple_counter;
+   cull->stage.destroy = cull_destroy;
 
    return &cull->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_feedback.c b/src/mesa/pipe/draw/draw_feedback.c
index b9906e5b4b..aea6a8184c 100644
--- a/src/mesa/pipe/draw/draw_feedback.c
+++ b/src/mesa/pipe/draw/draw_feedback.c
@@ -224,6 +224,12 @@ static void feedback_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void feedback_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
+
+
 /**
  * Create feedback drawing stage.
  */
@@ -239,6 +245,7 @@ struct draw_stage *draw_feedback_stage( struct draw_context *draw )
    feedback->stage.tri = feedback_tri;
    feedback->stage.end = feedback_end;
    feedback->stage.reset_stipple_counter = feedback_reset_stipple_counter;
+   feedback->stage.destroy = feedback_destroy;
 
    return &feedback->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_flatshade.c b/src/mesa/pipe/draw/draw_flatshade.c
index d46e53f2be..d7551e7948 100644
--- a/src/mesa/pipe/draw/draw_flatshade.c
+++ b/src/mesa/pipe/draw/draw_flatshade.c
@@ -127,6 +127,13 @@ static void flatshade_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void flatshade_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Create flatshading drawing stage.
  */
@@ -144,6 +151,7 @@ struct draw_stage *draw_flatshade_stage( struct draw_context *draw )
    flatshade->tri = flatshade_tri;
    flatshade->end = flatshade_end;
    flatshade->reset_stipple_counter = flatshade_reset_stipple_counter;
+   flatshade->destroy = flatshade_destroy;
 
    return flatshade;
 }
diff --git a/src/mesa/pipe/draw/draw_linestipple.c b/src/mesa/pipe/draw/draw_linestipple.c
index 1fac1ebe66..5f0db99b23 100644
--- a/src/mesa/pipe/draw/draw_linestipple.c
+++ b/src/mesa/pipe/draw/draw_linestipple.c
@@ -241,12 +241,18 @@ static void stipple_begin( struct clip_pipe_stage *stage )
 }
 
 
-
 static void stipple_end( struct clip_pipe_stage *stage )
 {
    stage->next->end( stage->next );
 }
 
+
+static void stipple_destroy( struct clip_pipe_stage *stage )
+{
+   FREE( stage );
+}
+
+
 struct clip_pipe_stage *clip_pipe_stipple( struct clip_pipeline *pipe )
 {
    struct stipple_stage *stipple = CALLOC_STRUCT(stipple_stage);
@@ -261,6 +267,7 @@ struct clip_pipe_stage *clip_pipe_stipple( struct clip_pipeline *pipe )
    stipple->stage.tri = clip_passthrough_tri;
    stipple->stage.reset_tmps = clip_pipe_reset_tmps;
    stipple->stage.end = stipple_end;
+   stipple->stage.destroy = stipple_destroy;
 
    return &stipple->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_offset.c b/src/mesa/pipe/draw/draw_offset.c
index 6acc7cbcd2..f8a01db3dd 100644
--- a/src/mesa/pipe/draw/draw_offset.c
+++ b/src/mesa/pipe/draw/draw_offset.c
@@ -151,6 +151,13 @@ static void offset_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void offset_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Create polygon offset drawing stage.
  */
@@ -168,6 +175,7 @@ struct draw_stage *draw_offset_stage( struct draw_context *draw )
    offset->stage.tri = offset_tri;
    offset->stage.end = offset_end;
    offset->stage.reset_stipple_counter = offset_reset_stipple_counter;
+   offset->stage.destroy = offset_destroy;
 
    return &offset->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_private.h b/src/mesa/pipe/draw/draw_private.h
index 53d7451113..ca5ca7b3c9 100644
--- a/src/mesa/pipe/draw/draw_private.h
+++ b/src/mesa/pipe/draw/draw_private.h
@@ -124,6 +124,8 @@ struct draw_stage
    void (*reset_tmps)( struct draw_stage * );
 
    void (*reset_stipple_counter)( struct draw_stage * );
+
+   void (*destroy)( struct draw_stage * );
 };
 
 
diff --git a/src/mesa/pipe/draw/draw_twoside.c b/src/mesa/pipe/draw/draw_twoside.c
index d987b00598..00b4ee45cd 100644
--- a/src/mesa/pipe/draw/draw_twoside.c
+++ b/src/mesa/pipe/draw/draw_twoside.c
@@ -146,6 +146,13 @@ static void twoside_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void twoside_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Create twoside pipeline stage.
  */
@@ -163,6 +170,7 @@ struct draw_stage *draw_twoside_stage( struct draw_context *draw )
    twoside->stage.tri = twoside_tri;
    twoside->stage.end = twoside_end;
    twoside->stage.reset_stipple_counter = twoside_reset_stipple_counter;
+   twoside->stage.destroy = twoside_destroy;
 
    return &twoside->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_unfilled.c b/src/mesa/pipe/draw/draw_unfilled.c
index 6cab086a45..786826b33c 100644
--- a/src/mesa/pipe/draw/draw_unfilled.c
+++ b/src/mesa/pipe/draw/draw_unfilled.c
@@ -168,6 +168,13 @@ static void unfilled_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void unfilled_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 /**
  * Create unfilled triangle stage.
  */
@@ -186,6 +193,7 @@ struct draw_stage *draw_unfilled_stage( struct draw_context *draw )
    unfilled->stage.tri = unfilled_tri;
    unfilled->stage.end = unfilled_end;
    unfilled->stage.reset_stipple_counter = unfilled_reset_stipple_counter;
+   unfilled->stage.destroy = unfilled_destroy;
 
    return &unfilled->stage;
 }
diff --git a/src/mesa/pipe/draw/draw_validate.c b/src/mesa/pipe/draw/draw_validate.c
index 4e8f986b27..8ce4a926e2 100644
--- a/src/mesa/pipe/draw/draw_validate.c
+++ b/src/mesa/pipe/draw/draw_validate.c
@@ -110,6 +110,10 @@ static void validate_begin( struct draw_stage *stage )
 }
 
 
+static void validate_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
 
 
 /**
@@ -127,6 +131,7 @@ struct draw_stage *draw_validate_stage( struct draw_context *draw )
    stage->tri = NULL;
    stage->end = NULL;
    stage->reset_stipple_counter = NULL;
+   stage->destroy = validate_destroy;
 
    return stage;
 }
diff --git a/src/mesa/pipe/draw/draw_vbuf.c b/src/mesa/pipe/draw/draw_vbuf.c
index d00cdec56c..d010aaba07 100644
--- a/src/mesa/pipe/draw/draw_vbuf.c
+++ b/src/mesa/pipe/draw/draw_vbuf.c
@@ -369,6 +369,15 @@ vbuf_reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void vbuf_destroy( struct draw_stage *stage )
+{
+   struct vbuf_stage *vbuf = vbuf_stage( stage );
+
+   FREE( vbuf->indices );
+   FREE( stage );
+}
+
+
 /**
  * Create a new primitive vbuf/render stage.
  */
@@ -384,12 +393,12 @@ struct draw_stage *draw_vbuf_stage( struct draw_context *draw,
    vbuf->stage.tri = vbuf_first_tri;
    vbuf->stage.end = vbuf_end;
    vbuf->stage.reset_stipple_counter = vbuf_reset_stipple_counter;
+   vbuf->stage.destroy = vbuf_destroy;
    
    vbuf->render = render;
 
    assert(render->max_indices < UNDEFINED_VERTEX_ID);
    vbuf->max_indices = render->max_indices;
-   /* FIXME: free this memory on takedown */
    vbuf->indices = MALLOC( vbuf->max_indices );
    
    vbuf->vertices = NULL;
diff --git a/src/mesa/pipe/draw/draw_vertex_fetch.c b/src/mesa/pipe/draw/draw_vertex_fetch.c
index e0759c2e9a..7d983ebd29 100644
--- a/src/mesa/pipe/draw/draw_vertex_fetch.c
+++ b/src/mesa/pipe/draw/draw_vertex_fetch.c
@@ -80,6 +80,7 @@ fetch_attrib4(const void *ptr, enum pipe_format format, float attrib[4])
       break;
 
    case PIPE_FORMAT_A8R8G8B8_UNORM:
+   case PIPE_FORMAT_R8G8B8A8_UNORM:
       attrib[0] = (float) ((unsigned char *) ptr)[2] / 255.0f;
       attrib[1] = (float) ((unsigned char *) ptr)[1] / 255.0f;
       attrib[2] = (float) ((unsigned char *) ptr)[0] / 255.0f;
diff --git a/src/mesa/pipe/draw/draw_wide_prims.c b/src/mesa/pipe/draw/draw_wide_prims.c
index 494a2bc619..a56c9b8893 100644
--- a/src/mesa/pipe/draw/draw_wide_prims.c
+++ b/src/mesa/pipe/draw/draw_wide_prims.c
@@ -315,7 +315,6 @@ static void wide_begin( struct draw_stage *stage )
 }
 
 
-
 static void wide_end( struct draw_stage *stage )
 {
    stage->next->end( stage->next );
@@ -327,6 +326,14 @@ static void draw_reset_stipple_counter( struct draw_stage *stage )
    stage->next->reset_stipple_counter( stage->next );
 }
 
+
+static void wide_destroy( struct draw_stage *stage )
+{
+   draw_free_tmps( stage );
+   FREE( stage );
+}
+
+
 struct draw_stage *draw_wide_stage( struct draw_context *draw )
 {
    struct wide_stage *wide = CALLOC_STRUCT(wide_stage);
@@ -341,6 +348,7 @@ struct draw_stage *draw_wide_stage( struct draw_context *draw )
    wide->stage.tri = passthrough_tri;
    wide->stage.end = wide_end;
    wide->stage.reset_stipple_counter = draw_reset_stipple_counter;
+   wide->stage.destroy = wide_destroy;
 
    return &wide->stage;
 }
diff --git a/src/mesa/pipe/i915simple/i915_prim_emit.c b/src/mesa/pipe/i915simple/i915_prim_emit.c
index 0a8be79ae4..c50a591589 100644
--- a/src/mesa/pipe/i915simple/i915_prim_emit.c
+++ b/src/mesa/pipe/i915simple/i915_prim_emit.c
@@ -194,6 +194,11 @@ static void reset_stipple_counter( struct draw_stage *stage )
 {
 }
 
+static void render_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
+
 
 /**
  * Create a new primitive setup/render stage.  This gets plugged into
@@ -211,6 +216,7 @@ struct draw_stage *i915_draw_render_stage( struct i915_context *i915 )
    setup->stage.tri = setup_tri;
    setup->stage.end = setup_end;
    setup->stage.reset_stipple_counter = reset_stipple_counter;
+   setup->stage.destroy = render_destroy;
 
    return &setup->stage;
 }
diff --git a/src/mesa/pipe/i915simple/i915_prim_vbuf.c b/src/mesa/pipe/i915simple/i915_prim_vbuf.c
index 08ac5b672c..571ad40595 100644
--- a/src/mesa/pipe/i915simple/i915_prim_vbuf.c
+++ b/src/mesa/pipe/i915simple/i915_prim_vbuf.c
@@ -99,7 +99,7 @@ i915_vbuf_render_allocate_vertices( struct vbuf_render *render,
 
    /* FIXME: handle failure */
    assert(!i915->vbo);
-   i915->vbo = winsys->buffer_create(winsys, 64);
+   i915->vbo = winsys->buffer_create(winsys, 64, 0, 0);
    winsys->buffer_data( winsys, i915->vbo, 
                         size, NULL, 
                         I915_BUFFER_USAGE_LIT_VERTEX );
diff --git a/src/mesa/pipe/i915simple/i915_texture.c b/src/mesa/pipe/i915simple/i915_texture.c
index 1ca2815dfb..59e8db8a95 100644
--- a/src/mesa/pipe/i915simple/i915_texture.c
+++ b/src/mesa/pipe/i915simple/i915_texture.c
@@ -496,7 +496,8 @@ i915_texture_create(struct pipe_context *pipe, struct pipe_texture **pt)
       if (i915->flags.is_i945 ? i945_miptree_layout(pipe, tex) :
 	  i915_miptree_layout(pipe, tex)) {
 	 tex->buffer = pipe->winsys->buffer_create(pipe->winsys,
-						   PIPE_SURFACE_FLAG_TEXTURE);
+						   PIPE_SURFACE_FLAG_TEXTURE,
+						   0, 0);
 
 	 if (tex->buffer)
 	    pipe->winsys->buffer_data(pipe->winsys, tex->buffer,
diff --git a/src/mesa/pipe/p_defines.h b/src/mesa/pipe/p_defines.h
index a853605486..8dce3aba90 100644
--- a/src/mesa/pipe/p_defines.h
+++ b/src/mesa/pipe/p_defines.h
@@ -170,8 +170,12 @@
 /**
  * Buffer access flags
  */
-#define PIPE_BUFFER_FLAG_READ    0x1
-#define PIPE_BUFFER_FLAG_WRITE   0x2
+#define PIPE_BUFFER_FLAG_READ         0x1
+#define PIPE_BUFFER_FLAG_WRITE        0x2
+#define PIPE_BUFFER_FLAG_MEM_LOCAL    0x4
+#define PIPE_BUFFER_FLAG_CACHED       0x8
+#define PIPE_BUFFER_FLAG_CUSTOM       (1<<16)
+
 
 
 /**
diff --git a/src/mesa/pipe/p_util.h b/src/mesa/pipe/p_util.h
index 7897bc90e4..3c5e98453c 100644
--- a/src/mesa/pipe/p_util.h
+++ b/src/mesa/pipe/p_util.h
@@ -114,6 +114,7 @@ REALLOC( void *old_ptr, unsigned old_size, unsigned new_size )
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )
 
 #define Elements(x) sizeof(x)/sizeof(*(x))
+#define Offset(TYPE, MEMBER) ((unsigned)&(((TYPE *)NULL)->MEMBER))
 
 /**
  * Return a pointer aligned to next multiple of 16 bytes.
@@ -204,8 +205,8 @@ static INLINE unsigned char float_to_ubyte( float f )
 
 static INLINE unsigned pack_ui32_float4( float a,
 					 float b, 
-					 float d, 
-					 float c )
+					 float c, 
+					 float d )
 {
    return pack_ub4( float_to_ubyte(a),
 		    float_to_ubyte(b),
@@ -300,4 +301,8 @@ static INLINE float LOG2(float val)
 #define CEILF(x)   ((float) ceil(x))
 #endif
 
+/* Convenient...
+ */
+extern void _mesa_printf(const char *str, ...);
+
 #endif
diff --git a/src/mesa/pipe/p_winsys.h b/src/mesa/pipe/p_winsys.h
index 438e8bdb63..f2be7655f4 100644
--- a/src/mesa/pipe/p_winsys.h
+++ b/src/mesa/pipe/p_winsys.h
@@ -42,6 +42,13 @@
 /** Opaque type for a buffer */
 struct pipe_buffer_handle;
 
+/** Opaque type */
+struct pipe_fence_handle;
+
+struct pipe_region;
+struct pipe_surface;
+
+
 /**
  * Gallium3D drivers are (meant to be!) independent of both GL and the
  * window system.  The window system provides a buffer manager and a
@@ -52,14 +59,6 @@ struct pipe_buffer_handle;
  * driver and the hardware driver about the format of command buffers,
  * etc.
  */
-
-
-struct pipe_region;
-struct pipe_surface;
-
-/** Opaque type */
-struct pipe_buffer_handle;
-
 struct pipe_winsys
 {
    /** Returns name of this winsys interface */
@@ -96,6 +95,7 @@ struct pipe_winsys
 
    void (*surface_release)(struct pipe_winsys *ws, struct pipe_surface **s);
 
+   
    /**
     * The buffer manager is modeled after the dri_bufmgr interface, which 
     * in turn is modeled after the ARB_vertex_buffer_object extension,  
@@ -104,15 +104,16 @@ struct pipe_winsys
     * systems must then implement that interface (rather than the
     * other way around...).
     */
-   struct pipe_buffer_handle *(*buffer_create)(struct pipe_winsys *sws, 
-					       unsigned alignment );
+   struct pipe_buffer_handle *(*buffer_create)( struct pipe_winsys *sws, 
+					        unsigned alignment,
+                                                unsigned flags,
+                                                unsigned hint );
 
    /** Create a buffer that wraps user-space data */
    struct pipe_buffer_handle *(*user_buffer_create)(struct pipe_winsys *sws, 
                                                     void *ptr,
                                                     unsigned bytes);
 
-
    /** 
     * Map the entire data store of a buffer object into the client's address.
     * flags is bitmask of PIPE_BUFFER_FLAG_READ/WRITE. 
@@ -135,25 +136,64 @@ struct pipe_winsys
     * usage is a bitmask of PIPE_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This
     * usage argument is only an optimization hint, not a guarantee, therefore 
     * proper behavior must be observed in all circumstances.
+    * 
+    * Returns zero on success.
     */
-   void (*buffer_data)(struct pipe_winsys *sws, 
+   int (*buffer_data)(struct pipe_winsys *sws, 
 		       struct pipe_buffer_handle *buf,
 		       unsigned size, const void *data,
 		       unsigned usage);
 
-   /** Modify some or all of the data contained in a buffer's data store */
-   void (*buffer_subdata)(struct pipe_winsys *sws, 
-			  struct pipe_buffer_handle *buf,
-			  unsigned long offset, 
-			  unsigned long size, 
-			  const void *data);
-
-   /** Query some or all of the data contained in a buffer's data store */
-   void (*buffer_get_subdata)(struct pipe_winsys *sws, 
-			      struct pipe_buffer_handle *buf,
-			      unsigned long offset, 
-			      unsigned long size, 
-			      void *data);
+   /** 
+    * Modify some or all of the data contained in a buffer's data store.
+    * 
+    * Returns zero on success.
+    */
+   int (*buffer_subdata)(struct pipe_winsys *sws, 
+                         struct pipe_buffer_handle *buf,
+                         unsigned long offset, 
+                         unsigned long size, 
+                         const void *data);
+
+   /** 
+    * Query some or all of the data contained in a buffer's data store.
+    * 
+    * Returns zero on success.
+    */
+   int (*buffer_get_subdata)(struct pipe_winsys *sws, 
+                             struct pipe_buffer_handle *buf,
+                             unsigned long offset, 
+                             unsigned long size, 
+                             void *data);
+
+
+   /** Set ptr = buf, with reference counting */
+   void (*fence_reference)( struct pipe_winsys *sws,
+                            struct pipe_fence_handle **ptr,
+                            struct pipe_fence_handle *fence );
+
+   /**
+    * Checks whether the fence has been signalled.
+    *  
+    * The meaning of flag is pipe-driver specific.
+    *
+    * Returns zero if it has.
+    */
+   int (*fence_signalled)( struct pipe_winsys *sws,
+                           struct pipe_fence_handle *fence,
+                           unsigned flag );
+
+   /**
+    * Wait for the fence to finish.
+    * 
+    * The meaning of flag is pipe-driver specific.
+    * 
+    * Returns zero on success.
+    */
+   int (*fence_finish)( struct pipe_winsys *sws,
+                        struct pipe_fence_handle *fence,
+                        unsigned flag );
+
 
 };
 
diff --git a/src/mesa/pipe/pipebuffer/Makefile b/src/mesa/pipe/pipebuffer/Makefile
new file mode 100644
index 0000000000..061d8a060f
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/Makefile
@@ -0,0 +1,27 @@
+
+TOP = ../../../..
+include $(TOP)/configs/current
+
+LIBNAME = pipebuffer
+
+	
+DRIVER_SOURCES = \
+	pb_buffer.c \
+	pb_buffer_client.c \
+	pb_buffer_handle.c \
+	pb_buffer_fenced.c \
+	pb_buffer_malloc.c \
+	pb_buffer_null.c \
+	pb_bufmgr_fenced.c \
+	pb_bufmgr_mm.c \
+	pb_bufmgr_pool.c
+
+C_SOURCES = \
+	$(DRIVER_SOURCES)
+
+ASM_SOURCES = 
+
+include ../Makefile.template
+
+symlinks:
+
diff --git a/src/mesa/pipe/pipebuffer/linked_list.h b/src/mesa/pipe/pipebuffer/linked_list.h
new file mode 100644
index 0000000000..e99817fb13
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/linked_list.h
@@ -0,0 +1,91 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ **************************************************************************/
+
+/**
+ * \file
+ * List macros heavily inspired by the Linux kernel
+ * list handling. No list looping yet.
+ * 
+ * Is not threadsafe, so common operations need to
+ * be protected using an external mutex.
+ */
+
+#ifndef LINKED_LIST_H_
+#define LINKED_LIST_H_
+
+
+#include <stddef.h>
+
+
+struct list_head
+{
+    struct list_head *prev;
+    struct list_head *next;
+};
+
+
+#define LIST_INITHEAD(__item)			\
+  do {						\
+    (__item)->prev = (__item);			\
+    (__item)->next = (__item);			\
+  } while (0)
+
+#define LIST_ADD(__item, __list)		\
+  do {						\
+    (__item)->prev = (__list);			\
+    (__item)->next = (__list)->next;		\
+    (__list)->next->prev = (__item);		\
+    (__list)->next = (__item);			\
+  } while (0)
+
+#define LIST_ADDTAIL(__item, __list)		\
+  do {						\
+    (__item)->next = (__list);			\
+    (__item)->prev = (__list)->prev;		\
+    (__list)->prev->next = (__item);		\
+    (__list)->prev = (__item);			\
+  } while(0)
+
+#define LIST_DEL(__item)			\
+  do {						\
+    (__item)->prev->next = (__item)->next;	\
+    (__item)->next->prev = (__item)->prev;	\
+  } while(0)
+
+#define LIST_DELINIT(__item)			\
+  do {						\
+    (__item)->prev->next = (__item)->next;	\
+    (__item)->next->prev = (__item)->prev;	\
+    (__item)->next = (__item);			\
+    (__item)->prev = (__item);			\
+  } while(0)
+
+#define LIST_ENTRY(__type, __item, __field)   \
+    ((__type *)(((char *)(__item)) - offsetof(__type, __field)))
+
+
+#endif /*LINKED_LIST_H_*/
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer.c b/src/mesa/pipe/pipebuffer/pb_buffer.c
new file mode 100644
index 0000000000..99c960b697
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer.c
@@ -0,0 +1,52 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer implementation.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include "pb_buffer.h"
+
+
+void
+buffer_reference(struct pipe_buffer **dst,
+                 struct pipe_buffer *src)
+{
+   if(*dst != src) {
+      if (src)
+         src->vtbl->reference(src);
+      
+      if (*dst)
+         (*dst)->vtbl->release(*dst);
+   
+      *dst = src;
+   }
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer.h b/src/mesa/pipe/pipebuffer/pb_buffer.h
new file mode 100644
index 0000000000..0523531395
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer.h
@@ -0,0 +1,175 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Generic code for buffers.
+ * 
+ * Behind a pipe buffle handle there can be DMA buffers, client (or user) 
+ * buffers, regular malloced buffers, etc. This file provides an abstract base 
+ * buffer handle that allows the driver to cope with all those kinds of buffers 
+ * in a more flexible way.
+ * 
+ * There is no obligation of a winsys driver to use this library. And a pipe
+ * driver should be completly agnostic about it.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+#ifndef PB_BUFFER_H_
+#define PB_BUFFER_H_
+
+
+#include <assert.h>
+#include <stdlib.h>
+
+
+struct pipe_buffer_vtbl;
+
+
+/**
+ * Base class for all pipe buffers.
+ */
+struct pipe_buffer 
+{
+   /**
+    * Pointer to the virtual function table.
+    *
+    * Avoid accessing this table directly. Use the inline functions below 
+    * instead to avoid mistakes. 
+    */
+   const struct pipe_buffer_vtbl *vtbl;
+};
+
+
+/**
+ * Virtual function table for the buffer storage operations.
+ * 
+ * Note that creation is not done through this table.
+ */
+struct pipe_buffer_vtbl
+{
+   /**
+    * Add a reference to the buffer.
+    *
+    * This method can be a no-op for buffers that don't need reference
+    * counting.
+    */
+   void (*reference)( struct pipe_buffer *buf );
+
+   /**
+    * Release a reference to this buffer and destroy it.
+    */
+   void (*release)( struct pipe_buffer *buf );
+
+   /** 
+    * Map the entire data store of a buffer object into the client's address.
+    * flags is bitmask of PIPE_BUFFER_FLAG_READ/WRITE. 
+    */
+   void *(*map)( struct pipe_buffer *buf, 
+                 unsigned flags );
+   
+   void (*unmap)( struct pipe_buffer *buf );
+
+   /**
+    * Get the base buffer and the offset.
+    * 
+    * A buffer can be subdivided in smaller buffers. This method should return
+    * the underlaying buffer, and the relative offset.
+    * 
+    * Buffers without an underlaying base buffer should return themselves, with 
+    * a zero offset.
+    * 
+    * Note that this will increase the reference count of the base buffer.
+    */
+   void (*get_base_buffer)( struct pipe_buffer *buf,
+                            struct pipe_buffer **base_buf,
+                            unsigned *offset );
+};
+
+
+/** *dst = src with reference counting */
+void
+buffer_reference(struct pipe_buffer **dst,
+                 struct pipe_buffer *src);
+
+
+static inline void
+buffer_release(struct pipe_buffer *buf)
+{
+   assert(buf);
+   buf->vtbl->release(buf);
+}
+
+
+static inline void *
+buffer_map(struct pipe_buffer *buf, 
+           unsigned flags)
+{
+   assert(buf);
+   return buf->vtbl->map(buf, flags);
+}
+
+
+static inline void 
+buffer_unmap(struct pipe_buffer *buf)
+{
+   assert(buf);
+   buf->vtbl->unmap(buf);
+}
+
+
+static inline void
+buffer_get_base_buffer( struct pipe_buffer *buf,
+                        struct pipe_buffer **base_buf,
+                        unsigned *offset )
+{
+   buf->vtbl->get_base_buffer(buf, base_buf, offset);
+}
+
+
+/** Placeholder for empty buffers. */
+extern struct pipe_buffer null_buffer;
+
+
+/**
+ * Client buffers (also designated as user buffers) are just for convenience 
+ * of the state tracker, so that it can masquerade its own data as a buffer.
+ */
+struct pipe_buffer *
+client_buffer_create(void *data);
+
+
+/**
+ * Malloc-based buffer to store data that can't be used by the graphics 
+ * hardware.
+ */
+struct pipe_buffer *
+malloc_buffer_create(unsigned size);
+
+
+#endif /*PB_BUFFER_H_*/
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_client.c b/src/mesa/pipe/pipebuffer/pb_buffer_client.c
new file mode 100644
index 0000000000..bb7f5a9a94
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_client.c
@@ -0,0 +1,123 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Implementation of client buffer (also designated as "user buffers"), which
+ * are just state-tracker owned data masqueraded as buffers.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include "pb_buffer.h"
+
+
+struct client_buffer 
+{
+   struct pipe_buffer base;
+   void *data;
+};
+
+
+extern const struct pipe_buffer_vtbl client_buffer_vtbl;
+
+
+static inline struct client_buffer *
+client_buffer(struct pipe_buffer *buf)
+{
+   assert(buf);
+   assert(buf->vtbl == &client_buffer_vtbl);
+   return (struct client_buffer *)buf;
+}
+
+
+static void
+client_buffer_reference(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+client_buffer_release(struct pipe_buffer *buf)
+{
+   assert(buf);
+   free(buf);
+}
+
+
+static void *
+client_buffer_map(struct pipe_buffer *buf, 
+                  unsigned flags)
+{
+   return client_buffer(buf)->data;
+}
+
+
+static void
+client_buffer_unmap(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+client_buffer_get_base_buffer(struct pipe_buffer *buf,
+                              struct pipe_buffer **base_buf,
+                              unsigned *offset)
+{
+   *base_buf = buf;
+   *offset = 0;
+}
+
+
+const struct pipe_buffer_vtbl 
+client_buffer_vtbl = {
+      client_buffer_reference,
+      client_buffer_release,
+      client_buffer_map,
+      client_buffer_unmap,
+      client_buffer_get_base_buffer
+};
+
+
+struct pipe_buffer *
+client_buffer_create(void *data) 
+{
+   struct client_buffer *buf;
+   
+   buf = (struct client_buffer *)malloc(sizeof(struct client_buffer));
+   if(!buf)
+      return NULL;
+   
+   buf->base.vtbl = &client_buffer_vtbl;
+   
+   buf->data = data;
+   
+   return &buf->base;
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_fenced.c b/src/mesa/pipe/pipebuffer/pb_buffer_fenced.c
new file mode 100644
index 0000000000..e69f88a323
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_fenced.c
@@ -0,0 +1,316 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Implementation of fenced buffers.
+ * 
+ * \author José Fonseca <jrfonseca-at-tungstengraphics-dot-com>
+ * \author Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "main/imports.h"
+#include "glapi/glthread.h"
+#include "linked_list.h"
+
+#include "p_winsys.h"
+
+#include "pb_buffer.h"
+#include "pb_buffer_fenced.h"
+
+
+/**
+ * Convenience macro (type safe).
+ */
+#define SUPER(__derived) (&(__derived)->base)
+
+
+struct fenced_buffer_list
+{
+   _glthread_Mutex mutex;
+   
+   struct pipe_winsys *winsys;
+   
+   size_t numDelayed;
+   size_t checkDelayed;
+   
+   struct list_head delayed;
+};
+
+
+/**
+ * Wrapper around a pipe buffer which adds fencing and reference counting.
+ */
+struct fenced_buffer
+{
+   struct pipe_buffer base;
+   
+   struct pipe_buffer *buffer;
+
+   unsigned refcount;
+   struct pipe_fence_handle *fence;
+
+   struct list_head head;
+   struct fenced_buffer_list *list;
+};
+
+
+static inline struct fenced_buffer *
+fenced_buffer(struct pipe_buffer *buf)
+{
+   assert(buf);
+   assert(buf->vtbl == &fenced_buffer_vtbl);
+   return (struct fenced_buffer *)buf;
+}
+
+
+static void
+_fenced_buffer_destroy(struct fenced_buffer *fenced_buf)
+{
+   buffer_release(fenced_buf->buffer);
+   free(fenced_buf);
+}
+
+
+static void
+_fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, 
+                               int wait)
+{
+   struct pipe_winsys *winsys = fenced_list->winsys;
+   struct fenced_buffer *fenced_buf;   
+   struct list_head *list, *prev;
+   int signaled = -1;
+   int i;
+
+   list = fenced_list->delayed.next;
+
+   if (fenced_list->numDelayed > 3) {
+      for (i = 0; i < fenced_list->numDelayed; i += 3) {
+         list = list->next;
+      }
+   }
+
+   prev = list->prev;
+   for (; list != &fenced_list->delayed; list = prev, prev = list->prev) {
+
+      fenced_buf = LIST_ENTRY(struct fenced_buffer, list, head);
+
+      if (signaled != 0) {
+         if (wait) {
+            signaled = winsys->fence_finish(winsys, fenced_buf->fence, 0);
+         }
+         else {
+            signaled = winsys->fence_signalled(winsys, fenced_buf->fence, 0);
+         }
+      }
+
+      if (signaled != 0)
+	 /* XXX: we are assuming that buffers are freed in the same order they 
+	  * are fenced which may not always be true... 
+	  */
+         break;
+
+      winsys->fence_reference(winsys, &fenced_buf->fence, NULL);
+      
+      LIST_DEL(list);
+      fenced_list->numDelayed--;
+      
+      _fenced_buffer_destroy(fenced_buf);
+   }
+}
+
+
+static void
+fenced_buffer_reference(struct pipe_buffer *buf) 
+{
+   struct fenced_buffer *fenced_buf = fenced_buffer(buf);   
+   struct fenced_buffer_list *fenced_list = fenced_buf->list;
+
+   _glthread_LOCK_MUTEX(fenced_list->mutex);
+   fenced_buf->refcount++;
+   _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+}
+
+
+static void
+fenced_buffer_release(struct pipe_buffer *buf)
+{
+   struct fenced_buffer *fenced_buf = fenced_buffer(buf);   
+   struct fenced_buffer_list *fenced_list = fenced_buf->list;
+
+   _glthread_LOCK_MUTEX(fenced_list->mutex);
+
+   fenced_buf->refcount--;
+   if(!fenced_buf->refcount) {
+      if (fenced_buf->fence) {
+         LIST_ADDTAIL(&fenced_buf->head, &fenced_list->delayed);
+         fenced_list->numDelayed++;
+      }
+      else {
+         _fenced_buffer_destroy(fenced_buf);
+      }
+   
+      if ((fenced_list->numDelayed % fenced_list->checkDelayed) == 0)
+         _fenced_buffer_list_check_free(fenced_list, 0);
+   }
+   
+   _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+}
+
+
+static void *
+fenced_buffer_map(struct pipe_buffer *buf, 
+                  unsigned flags)
+{
+   struct fenced_buffer *fenced_buf = fenced_buffer(buf);   
+   return buffer_map(fenced_buf->buffer, flags);
+}
+
+
+static void
+fenced_buffer_unmap(struct pipe_buffer *buf)
+{
+   struct fenced_buffer *fenced_buf = fenced_buffer(buf);   
+   buffer_unmap(fenced_buf->buffer);
+}
+
+
+static void
+fenced_buffer_get_base_buffer(struct pipe_buffer *buf,
+                              struct pipe_buffer **base_buf,
+                              unsigned *offset)
+{
+   struct fenced_buffer *fenced_buf = fenced_buffer(buf);
+   buffer_get_base_buffer(fenced_buf->buffer, base_buf, offset);
+}
+
+
+const struct pipe_buffer_vtbl 
+fenced_buffer_vtbl = {
+      fenced_buffer_reference,
+      fenced_buffer_release,
+      fenced_buffer_map,
+      fenced_buffer_unmap,
+      fenced_buffer_get_base_buffer
+};
+
+
+struct pipe_buffer *
+fenced_buffer_create(struct fenced_buffer_list *fenced_list, 
+                     struct pipe_buffer *buffer)
+{
+   struct fenced_buffer *buf;
+   
+   buf = (struct fenced_buffer *)calloc(1, sizeof(struct fenced_buffer));
+   if(!buf)
+      return NULL;
+   
+   buf->base.vtbl = &fenced_buffer_vtbl;
+   buf->buffer = buffer;
+   buf->refcount = 1;
+   buf->list = fenced_list;
+   
+   return &buf->base;
+}
+
+
+void
+buffer_fence(struct pipe_buffer *buf,
+             struct pipe_fence_handle *fence)
+{
+   if(buf->vtbl == &fenced_buffer_vtbl) {
+      struct fenced_buffer *fenced_buf = fenced_buffer(buf);
+      struct fenced_buffer_list *fenced_list = fenced_buf->list;
+      struct pipe_winsys *winsys = fenced_list->winsys;
+   
+      _glthread_LOCK_MUTEX(fenced_list->mutex);
+      winsys->fence_reference(winsys, &fenced_buf->fence, fence);
+      _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+   }
+   else
+      assert(0);
+}
+
+
+struct fenced_buffer_list *
+fenced_buffer_list_create(struct pipe_winsys *winsys) 
+{
+   struct fenced_buffer_list *fenced_list;
+
+   fenced_list = (struct fenced_buffer_list *)calloc(1, sizeof(*fenced_list));
+   if (!fenced_list)
+      return NULL;
+
+   fenced_list->winsys = winsys;
+
+   LIST_INITHEAD(&fenced_list->delayed);
+
+   fenced_list->numDelayed = 0;
+   
+   /* TODO: don't hard code this */ 
+   fenced_list->checkDelayed = 5;
+
+   _glthread_INIT_MUTEX(fenced_list->mutex);
+
+   return fenced_list;
+}
+
+
+void
+fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, 
+                              int wait)
+{
+   _glthread_LOCK_MUTEX(fenced_list->mutex);
+   _fenced_buffer_list_check_free(fenced_list, wait);
+   _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+}
+
+
+void
+fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list)
+{
+   _glthread_LOCK_MUTEX(fenced_list->mutex);
+
+   /* Wait on outstanding fences */
+   while (fenced_list->numDelayed) {
+      _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+      sched_yield();
+      _fenced_buffer_list_check_free(fenced_list, GL_TRUE);
+      _glthread_LOCK_MUTEX(fenced_list->mutex);
+   }
+
+   _glthread_UNLOCK_MUTEX(fenced_list->mutex);
+   
+   free(fenced_list);
+}
+
+
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_fenced.h b/src/mesa/pipe/pipebuffer/pb_buffer_fenced.h
new file mode 100644
index 0000000000..07e42a67f8
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_fenced.h
@@ -0,0 +1,117 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer fencing.
+ * 
+ * "Fenced buffers" is actually a misnomer. They should be referred as 
+ * "fenceable buffers", i.e, buffers that can be fenced, but I couldn't find
+ * the word "fenceable" in the dictionary.
+ * 
+ * A "fenced buffer" is a decorator around a normal buffer, which adds two 
+ * special properties:
+ * - the ability for the destruction to be delayed by a fence;
+ * - reference counting.
+ * 
+ * Usually DMA buffers have a life-time that will extend the life-time of its 
+ * handle. The end-of-life is dictated by the fence signalling. 
+ * 
+ * Between the handle's destruction, and the fence signalling, the buffer is 
+ * stored in a fenced buffer list.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+#ifndef PB_BUFFER_FENCED_H_
+#define PB_BUFFER_FENCED_H_
+
+
+#include <assert.h>
+
+
+struct pipe_winsys;
+struct pipe_buffer;
+struct pipe_fence_handle;
+
+
+/**
+ * List of buffers which are awaiting fence signalling.
+ */
+struct fenced_buffer_list;
+
+
+/**
+ * The fenced buffer's virtual function table.
+ * 
+ * NOTE: Made public for debugging purposes.
+ */
+extern const struct pipe_buffer_vtbl fenced_buffer_vtbl;
+
+
+/**
+ * Create a fenced buffer list.
+ * 
+ * See also fenced_bufmgr_create for a more convenient way to use this.
+ */
+struct fenced_buffer_list *
+fenced_buffer_list_create(struct pipe_winsys *winsys);
+
+
+/**
+ * Walk the fenced buffer list to check and free signalled buffers.
+ */ 
+void
+fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, 
+                              int wait);
+
+void
+fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list);
+
+
+/**
+ * Wrap a buffer in a fenced buffer.
+ * 
+ * NOTE: this will not increase the buffer reference count.
+ */
+struct pipe_buffer *
+fenced_buffer_create(struct fenced_buffer_list *fenced, 
+                     struct pipe_buffer *buffer);
+
+
+/**
+ * Set a buffer's fence.
+ * 
+ * NOTE: Although it takes a generic pipe buffer argument, it will fail
+ * on everything but buffers returned by fenced_buffer_create.
+ */
+void
+buffer_fence(struct pipe_buffer *buf,
+             struct pipe_fence_handle *fence);
+
+
+#endif /*PB_BUFFER_FENCED_H_*/
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_handle.c b/src/mesa/pipe/pipebuffer/pb_buffer_handle.c
new file mode 100644
index 0000000000..5a5eaee7ac
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_handle.c
@@ -0,0 +1,182 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Drop-in implementation of the winsys driver functions for buffer handles.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+
+#include "pb_buffer.h"
+#include "pb_buffer_handle.h"
+
+
+static struct pipe_buffer_handle *
+buffer_handle_create(struct pipe_winsys *winsys,
+                     unsigned alignment,
+                     unsigned flags,
+                     unsigned hint)
+{
+   struct pipe_buffer_handle *handle;
+  
+   handle = (struct pipe_buffer_handle *)malloc(sizeof(struct pipe_buffer_handle));
+   if(!handle)
+      return NULL;
+   
+   handle->refcount = 1;
+   handle->alignment = alignment;
+   handle->flags = flags;
+   handle->hint = hint;
+   
+   handle->buf = &null_buffer;
+   
+   return handle;
+}
+
+
+static struct pipe_buffer_handle *
+buffer_handle_create_user(struct pipe_winsys *winsys, 
+                          void *data, unsigned size)
+{
+   struct pipe_buffer_handle *handle;
+   struct pipe_buffer *buf;
+   
+   handle = buffer_handle_create(winsys, 1, 0, 0);
+   if(!handle)
+      return NULL;
+   
+   buf = client_buffer_create(data);
+   if(!buf) {
+      free(handle);
+      return NULL;
+   }
+   
+   buffer_handle_data(handle, buf);
+   
+   return handle;
+}
+
+
+static void *
+buffer_handle_map(struct pipe_winsys *winsys,
+                  struct pipe_buffer_handle *handle, 
+                  unsigned flags)
+{
+   return buffer_map(handle->buf, flags);
+}
+
+
+static void 
+buffer_handle_unmap(struct pipe_winsys *winsys,
+                    struct pipe_buffer_handle *handle)
+{
+   buffer_unmap(handle->buf);
+}
+
+
+static void
+buffer_handle_reference(struct pipe_winsys *winsys,
+                        struct pipe_buffer_handle **dst,
+		        struct pipe_buffer_handle *src)
+{
+   /* XXX: should this be thread safe? */
+   
+   if (src) {
+      src->refcount++;
+   }
+   
+   if (*dst) {
+      (*dst)->refcount--;
+      if ((*dst)->refcount == 0) {
+	 buffer_release((*dst)->buf);
+	 free(*dst);
+      }
+   }
+
+   *dst = src;
+}
+
+
+static int 
+buffer_handle_subdata(struct pipe_winsys *winsys, 
+                      struct pipe_buffer_handle *handle,
+                      unsigned long offset, 
+                      unsigned long size, 
+                      const void *data)
+{
+   void *map;
+   assert(handle);
+   assert(data);
+   map = buffer_handle_map(winsys, handle, PIPE_BUFFER_FLAG_WRITE);
+   if(map) {
+      memcpy((char *)map + offset, data, size);
+      buffer_handle_unmap(winsys, handle);
+      return 0;
+   }
+   return -1; 
+}
+
+
+static int  
+buffer_handle_get_subdata(struct pipe_winsys *winsys,
+                          struct pipe_buffer_handle *handle,
+                          unsigned long offset, 
+                          unsigned long size, 
+                          void *data)
+{
+   void *map;
+   assert(handle);
+   assert(data);
+   map = buffer_handle_map(winsys, handle, PIPE_BUFFER_FLAG_READ);
+   if(map) {
+      memcpy(data, (char *)map + offset, size);
+      buffer_handle_unmap(winsys, handle);
+      return 0;
+   }
+   return -1; 
+}
+
+
+void 
+buffer_handle_init_winsys(struct pipe_winsys *winsys)
+{
+   winsys->buffer_create = buffer_handle_create;
+   winsys->user_buffer_create = buffer_handle_create_user;
+   winsys->buffer_map = buffer_handle_map;
+   winsys->buffer_unmap = buffer_handle_unmap;
+   winsys->buffer_reference = buffer_handle_reference;
+   winsys->buffer_subdata = buffer_handle_subdata;
+   winsys->buffer_get_subdata = buffer_handle_get_subdata;
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_handle.h b/src/mesa/pipe/pipebuffer/pb_buffer_handle.h
new file mode 100644
index 0000000000..076eec2fdc
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_handle.h
@@ -0,0 +1,120 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer handle interface.
+ *
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+#ifndef PB_BUFFER_HANDLE_H_
+#define PB_BUFFER_HANDLE_H_
+
+
+#include <assert.h>
+
+#include "pb_buffer.h"
+
+
+/**
+ * Buffer handle.
+ *
+ * The buffer handle and the buffer data storage are separate entities. This
+ * is modelled after ARB_vertex_buffer_object, which is the interface that
+ * Gallium requires. See p_winsys.h for more information.
+ */
+struct pipe_buffer_handle 
+{
+   /** Reference count */
+   unsigned refcount;
+
+   /** Allocation characteristics */
+   unsigned alignment;
+   unsigned flags;
+   unsigned hint;
+   
+   /** 
+    * The actual buffer.
+    * 
+    * It should never be NULL. Use null_buffer instead. 
+    */
+   struct pipe_buffer *buf;
+};
+
+
+/**
+ * Set buffer storage.
+ * 
+ * NOTE: this will not increase the buffer reference count.
+ */
+static inline void
+buffer_handle_data(struct pipe_buffer_handle *handle,
+                   struct pipe_buffer *buf)
+{
+   assert(handle);
+   assert(handle->buf);
+   buffer_release(handle->buf);
+   assert(buf);
+   handle->buf = buf;
+}
+
+
+static inline void
+buffer_handle_clear(struct pipe_buffer_handle *handle)
+{
+   buffer_handle_data(handle, &null_buffer);
+}
+
+
+static inline int
+buffer_handle_has_data(struct pipe_buffer_handle *handle) {
+   assert(handle);
+   assert(handle->buf);
+   return handle->buf != &null_buffer;
+}
+
+
+/**
+ * Fill in the pipe_winsys' buffer-related callbacks.
+ * 
+ * Specifically, the fullfilled functions are:
+ * - buffer_create
+ * - user_buffer_create
+ * - buffer_map
+ * - buffer_unmap
+ * - buffer_reference
+ * - buffer_subdata
+ * - buffer_get_subdata
+ * 
+ * NOTE: buffer_data is left untouched.
+ */
+void 
+buffer_handle_init_winsys(struct pipe_winsys *winsys);
+
+
+#endif /*PB_BUFFER_HANDLE_H_*/
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_malloc.c b/src/mesa/pipe/pipebuffer/pb_buffer_malloc.c
new file mode 100644
index 0000000000..65ad51e1e7
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_malloc.c
@@ -0,0 +1,132 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Implementation of malloc-based buffers to store data that can't be processed
+ * by the hardware. 
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "pb_buffer.h"
+
+
+struct malloc_buffer 
+{
+   struct pipe_buffer base;
+   void *data;
+};
+
+
+extern const struct pipe_buffer_vtbl malloc_buffer_vtbl;
+
+static inline struct malloc_buffer *
+malloc_buffer(struct pipe_buffer *buf)
+{
+   assert(buf);
+   assert(buf->vtbl == &malloc_buffer_vtbl);
+   return (struct malloc_buffer *)buf;
+}
+
+
+static void
+malloc_buffer_reference(struct pipe_buffer *buf)
+{
+   /* no-op */
+}
+
+
+static void
+malloc_buffer_release(struct pipe_buffer *buf)
+{
+   free(malloc_buffer(buf)->data);
+   free(buf);
+}
+
+
+static void *
+malloc_buffer_map(struct pipe_buffer *buf, 
+                  unsigned flags)
+{
+   return malloc_buffer(buf)->data;
+}
+
+
+static void
+malloc_buffer_unmap(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+malloc_buffer_get_base_buffer(struct pipe_buffer *buf,
+                              struct pipe_buffer **base_buf,
+                              unsigned *offset)
+{
+   *base_buf = buf;
+   *offset = 0;
+}
+
+
+const struct pipe_buffer_vtbl 
+malloc_buffer_vtbl = {
+      malloc_buffer_reference,
+      malloc_buffer_release,
+      malloc_buffer_map,
+      malloc_buffer_unmap,
+      malloc_buffer_get_base_buffer
+};
+
+
+struct pipe_buffer *
+malloc_buffer_create(unsigned size) 
+{
+   struct malloc_buffer *buf;
+   
+   /* TODO: accept an alignment parameter */
+   /* TODO: do a single allocation */
+   
+   buf = (struct malloc_buffer *)malloc(sizeof(struct malloc_buffer));
+   if(!buf)
+      return NULL;
+   
+   buf->base.vtbl = &malloc_buffer_vtbl;
+   
+   buf->data = malloc(size);
+   if(!buf->data) {
+      free(buf);
+      return NULL;
+   }
+
+   return &buf->base;
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_null.c b/src/mesa/pipe/pipebuffer/pb_buffer_null.c
new file mode 100644
index 0000000000..a356c6b2d5
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_buffer_null.c
@@ -0,0 +1,98 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Null buffer implementation.
+ * 
+ * We have a special null buffer object so that we can safely call buffer 
+ * operations without having to check whether the buffer pointer is null or not.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include "pipe/p_winsys.h"
+#include "pipe/p_defines.h"
+
+#include "pb_buffer.h"
+
+
+static void
+null_buffer_reference(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+null_buffer_release(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void *
+null_buffer_map(struct pipe_buffer *buf, 
+                unsigned flags)
+{
+   assert(0);
+   return NULL;
+}
+
+
+static void
+null_buffer_unmap(struct pipe_buffer *buf)
+{
+   assert(0);
+}
+
+
+static void
+null_buffer_get_base_buffer(struct pipe_buffer *buf,
+                            struct pipe_buffer **base_buf,
+                            unsigned *offset)
+{
+   *base_buf = buf;
+   *offset = 0;
+}
+
+
+const struct pipe_buffer_vtbl 
+pipe_buffer_vtbl = {
+      null_buffer_reference,
+      null_buffer_release,
+      null_buffer_map,
+      null_buffer_unmap,
+      null_buffer_get_base_buffer
+};
+
+
+struct pipe_buffer
+null_buffer = {
+      &pipe_buffer_vtbl
+};
diff --git a/src/mesa/pipe/pipebuffer/pb_bufmgr.h b/src/mesa/pipe/pipebuffer/pb_bufmgr.h
new file mode 100644
index 0000000000..0e6c3a8d37
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_bufmgr.h
@@ -0,0 +1,114 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer management.
+ * 
+ * A buffer manager does only one basic thing: it creates buffers. Actually,
+ * "buffer factory" would probably a more accurate description.
+ * 
+ * You can chain buffer managers so that you can have a finer grained memory
+ * management and pooling.
+ * 
+ * For example, for a simple batch buffer manager you would chain:
+ * - the native buffer manager, which provides DMA memory from the graphics
+ * memory space;
+ * - the pool buffer manager, which keep around a pool of equally sized buffers
+ * to avoid latency associated with the native buffer manager; 
+ * - the fenced buffer manager, which will delay buffer destruction until the 
+ * the moment the card finishing processing it. 
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+#ifndef PB_BUFMGR_H_
+#define PB_BUFMGR_H_
+
+
+#include <stddef.h>
+
+
+struct pipe_buffer;
+struct pipe_winsys;
+
+
+/** 
+ * Abstract base class for all buffer managers.
+ */
+struct buffer_manager
+{
+   /* XXX: we will likely need more allocation flags */
+   struct pipe_buffer *
+   (*create_buffer)( struct buffer_manager *mgr, 
+	             size_t size);
+
+   void
+   (*destroy)( struct buffer_manager *mgr );
+};
+
+
+/** 
+ * Static buffer pool manager.
+ * 
+ * Manages the allocation of equally sized buffers. It does so by allocating
+ * a single big buffer and divide it equally sized buffers. 
+ * 
+ * It is meant to manage the allocation of batch buffer pools.
+ */
+struct buffer_manager *
+pool_bufmgr_create(struct buffer_manager *provider, 
+                   size_t n, size_t size);
+
+
+/** 
+ * Wraper around the old memory manager.
+ * 
+ * It managers buffers of different sizes. It does so by allocating a buffer
+ * with the size of the heap, and then using the old mm memory manager to manage
+ * that heap. 
+ */
+struct buffer_manager *
+mm_bufmgr_create(struct buffer_manager *provider, 
+                 size_t size, size_t align2);
+
+
+/** 
+ * Fenced buffer manager.
+ *
+ * This manager is just meant for convenience. It wraps the buffers returned
+ * by another manager in fenced buffers, so that  
+ * 
+ * NOTE: the buffer manager that provides the buffers will be destroyed
+ * at the same time.
+ */
+struct buffer_manager *
+fenced_bufmgr_create(struct buffer_manager *provider,
+                     struct pipe_winsys *winsys);
+
+
+#endif /*PB_BUFMGR_H_*/
diff --git a/src/mesa/pipe/pipebuffer/pb_bufmgr_fenced.c b/src/mesa/pipe/pipebuffer/pb_bufmgr_fenced.c
new file mode 100644
index 0000000000..defd8e4df7
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_bufmgr_fenced.c
@@ -0,0 +1,128 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+
+/**
+ * \file
+ * A buffer manager that wraps buffers in fenced buffers.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.dot.com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "pb_buffer.h"
+#include "pb_buffer_fenced.h"
+#include "pb_bufmgr.h"
+
+
+struct fenced_buffer_manager
+{
+   struct buffer_manager base;
+
+   struct buffer_manager *provider;
+   
+   struct fenced_buffer_list *fenced_list;
+};
+
+
+static inline struct fenced_buffer_manager *
+fenced_buffer_manager(struct buffer_manager *mgr)
+{
+   assert(mgr);
+   return (struct fenced_buffer_manager *)mgr;
+}
+
+
+static struct pipe_buffer *
+fenced_bufmgr_create_buffer(struct buffer_manager *mgr, size_t size)
+{
+   struct fenced_buffer_manager *fenced_mgr = fenced_buffer_manager(mgr);
+   struct pipe_buffer *buf;
+   struct pipe_buffer *fenced_buf;
+
+   /* check for free buffers before allocating new ones */
+   fenced_buffer_list_check_free(fenced_mgr->fenced_list, 0);
+   
+   buf = fenced_mgr->provider->create_buffer(fenced_mgr->provider, size);
+   if(!buf) {
+      /* try harder to get a buffer */
+      fenced_buffer_list_check_free(fenced_mgr->fenced_list, 1);
+      
+      buf = fenced_mgr->provider->create_buffer(fenced_mgr->provider, size);
+      if(!buf) {
+         /* give up */
+         return NULL;
+      }
+   }
+   
+   fenced_buf = fenced_buffer_create(fenced_mgr->fenced_list, buf);
+   if(!fenced_buf) {
+      buffer_release(buf);
+   }
+   
+   return fenced_buf;
+}
+
+
+static void
+fenced_bufmgr_destroy(struct buffer_manager *mgr)
+{
+   struct fenced_buffer_manager *fenced_mgr = fenced_buffer_manager(mgr);
+
+   fenced_buffer_list_destroy(fenced_mgr->fenced_list);
+
+   fenced_mgr->provider->destroy(fenced_mgr->provider);
+   
+   free(fenced_mgr);
+}
+
+
+struct buffer_manager *
+fenced_bufmgr_create(struct buffer_manager *provider, 
+                     struct pipe_winsys *winsys) 
+{
+   struct fenced_buffer_manager *fenced_mgr;
+
+   fenced_mgr = (struct fenced_buffer_manager *)calloc(1, sizeof(*fenced_mgr));
+   if (!fenced_mgr)
+      return NULL;
+
+   fenced_mgr->base.destroy = fenced_bufmgr_destroy;
+   fenced_mgr->base.create_buffer = fenced_bufmgr_create_buffer;
+
+   fenced_mgr->provider = provider;
+   fenced_mgr->fenced_list = fenced_buffer_list_create(winsys);
+   if(!fenced_mgr->fenced_list) {
+      free(fenced_mgr);
+      return NULL;
+   }
+      
+   return &fenced_mgr->base;
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c b/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c
new file mode 100644
index 0000000000..8e6dcf1116
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_bufmgr_mm.c
@@ -0,0 +1,265 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Buffer manager using the old texture memory manager.
+ * 
+ * \author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "main/imports.h"
+#include "glapi/glthread.h"
+#include "main/mm.h"
+#include "linked_list.h"
+
+#include "p_defines.h"
+#include "pb_buffer.h"
+#include "pb_bufmgr.h"
+
+
+/**
+ * Convenience macro (type safe).
+ */
+#define SUPER(__derived) (&(__derived)->base)
+
+
+struct mm_buffer_manager
+{
+   struct buffer_manager base;
+   
+   _glthread_Mutex mutex;
+   
+   size_t size;
+   struct mem_block *heap;
+   
+   size_t align2;
+   
+   struct pipe_buffer *buffer;
+   void *map;
+};
+
+
+static inline struct mm_buffer_manager *
+mm_buffer_manager(struct buffer_manager *mgr)
+{
+   assert(mgr);
+   return (struct mm_buffer_manager *)mgr;
+}
+
+
+struct mm_buffer
+{
+   struct pipe_buffer base;
+   
+   struct mm_buffer_manager *mgr;
+   
+   struct mem_block *block;
+};
+
+
+static inline struct mm_buffer *
+mm_buffer(struct pipe_buffer *buf)
+{
+   assert(buf);
+   return (struct mm_buffer *)buf;
+}
+
+
+static void
+mm_buffer_reference(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+mm_buffer_release(struct pipe_buffer *buf)
+{
+   struct mm_buffer *mm_buf = mm_buffer(buf);
+   struct mm_buffer_manager *mm = mm_buf->mgr;
+   
+   _glthread_LOCK_MUTEX(mm->mutex);
+   mmFreeMem(mm_buf->block);
+   free(buf);
+   _glthread_UNLOCK_MUTEX(mm->mutex);
+}
+
+
+static void *
+mm_buffer_map(struct pipe_buffer *buf,
+              unsigned flags)
+{
+   struct mm_buffer *mm_buf = mm_buffer(buf);
+   struct mm_buffer_manager *mm = mm_buf->mgr;
+
+   return (unsigned char *) mm->map + mm_buf->block->ofs;
+}
+
+
+static void
+mm_buffer_unmap(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+mm_buffer_get_base_buffer(struct pipe_buffer *buf,
+                          struct pipe_buffer **base_buf,
+                          unsigned *offset)
+{
+   struct mm_buffer *mm_buf = mm_buffer(buf);
+   struct mm_buffer_manager *mm = mm_buf->mgr;
+   buffer_get_base_buffer(mm->buffer, base_buf, offset);
+   *offset += mm_buf->block->ofs;
+}
+
+
+static const struct pipe_buffer_vtbl 
+mm_buffer_vtbl = {
+      mm_buffer_reference,
+      mm_buffer_release,
+      mm_buffer_map,
+      mm_buffer_unmap,
+      mm_buffer_get_base_buffer
+};
+
+
+static struct pipe_buffer *
+mm_bufmgr_create_buffer(struct buffer_manager *mgr, 
+                        size_t size)
+{
+   struct mm_buffer_manager *mm = mm_buffer_manager(mgr);
+   struct mm_buffer *mm_buf;
+
+   _glthread_LOCK_MUTEX(mm->mutex);
+
+   mm_buf = (struct mm_buffer *)malloc(sizeof(*mm_buf));
+   if (!mm_buf) {
+      _glthread_UNLOCK_MUTEX(mm->mutex);
+      return NULL;
+   }
+
+   mm_buf->base.vtbl = &mm_buffer_vtbl;
+   
+   mm_buf->mgr = mm;
+   
+   mm_buf->block = mmAllocMem(mm->heap, size, mm->align2, 0);
+   if(!mm_buf->block) {
+      fprintf(stderr, "warning: heap full\n");
+#if 0
+      mmDumpMemInfo(mm->heap);
+#endif
+      
+      mm_buf->block = mmAllocMem(mm->heap, size, mm->align2, 0);
+      if(!mm_buf->block) {
+	 assert(0);
+         free(mm_buf);
+         _glthread_UNLOCK_MUTEX(mm->mutex);
+         return NULL;
+      }
+   }
+   
+   /* Some sanity checks */
+   assert(0 <= mm_buf->block->ofs && mm_buf->block->ofs < mm->size);
+   assert(size <= mm_buf->block->size && mm_buf->block->ofs + mm_buf->block->size <= mm->size);
+   
+   _glthread_UNLOCK_MUTEX(mm->mutex);
+   return SUPER(mm_buf);
+}
+
+
+static void
+mm_bufmgr_destroy(struct buffer_manager *mgr)
+{
+   struct mm_buffer_manager *mm = mm_buffer_manager(mgr);
+   
+   _glthread_LOCK_MUTEX(mm->mutex);
+
+   mmDestroy(mm->heap);
+   
+   buffer_unmap(mm->buffer);
+   buffer_release(mm->buffer);
+   
+   _glthread_UNLOCK_MUTEX(mm->mutex);
+   
+   free(mgr);
+}
+
+
+struct buffer_manager *
+mm_bufmgr_create(struct buffer_manager *provider, 
+                 size_t size, size_t align2) 
+{
+   struct mm_buffer_manager *mm;
+
+   mm = (struct mm_buffer_manager *)calloc(1, sizeof(*mm));
+   if (!mm)
+      return NULL;
+
+   assert(provider);
+   assert(provider->create_buffer);
+   mm->base.create_buffer = mm_bufmgr_create_buffer;
+   mm->base.destroy = mm_bufmgr_destroy;
+
+   mm->size = size;
+   mm->align2 = align2; /* 64-byte alignment */
+
+   _glthread_INIT_MUTEX(mm->mutex);
+
+   mm->buffer = provider->create_buffer(provider, size); 
+   if (!mm->buffer)
+      goto failure;
+
+   mm->map = buffer_map(mm->buffer, 
+                        PIPE_BUFFER_FLAG_READ | PIPE_BUFFER_FLAG_WRITE );
+   if(!mm->map)
+      goto failure;
+
+   mm->heap = mmInit(0, size); 
+   if (!mm->heap)
+      goto failure;
+
+   return SUPER(mm);
+   
+failure:
+if(mm->heap)
+   mmDestroy(mm->heap);
+   if(mm->map)
+      buffer_unmap(mm->buffer);
+   if(mm->buffer)
+      buffer_release(mm->buffer);
+   if(mm)
+      free(mm);
+   return NULL;
+}
diff --git a/src/mesa/pipe/pipebuffer/pb_bufmgr_pool.c b/src/mesa/pipe/pipebuffer/pb_bufmgr_pool.c
new file mode 100644
index 0000000000..ee6fa62500
--- /dev/null
+++ b/src/mesa/pipe/pipebuffer/pb_bufmgr_pool.c
@@ -0,0 +1,279 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+
+/**
+ * \file
+ * Batch buffer pool management.
+ * 
+ * \author José Fonseca <jrfonseca-at-tungstengraphics-dot-com>
+ * \author Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ */
+
+
+#include <assert.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "main/imports.h"
+#include "glapi/glthread.h"
+#include "linked_list.h"
+
+#include "p_defines.h"
+
+#include "pb_buffer.h"
+#include "pb_bufmgr.h"
+
+
+/**
+ * Convenience macro (type safe).
+ */
+#define SUPER(__derived) (&(__derived)->base)
+
+
+struct pool_buffer_manager
+{
+   struct buffer_manager base;
+   
+   _glthread_Mutex mutex;
+   
+   size_t bufSize;
+   
+   size_t numFree;
+   size_t numTot;
+   
+   struct list_head free;
+   
+   struct pipe_buffer *buffer;
+   void *map;
+   
+   struct pool_buffer *bufs;
+};
+
+
+static inline struct pool_buffer_manager *
+pool_buffer_manager(struct buffer_manager *mgr)
+{
+   assert(mgr);
+   return (struct pool_buffer_manager *)mgr;
+}
+
+
+struct pool_buffer
+{
+   struct pipe_buffer base;
+   
+   struct pool_buffer_manager *mgr;
+   
+   struct list_head head;
+   
+   size_t start;
+};
+
+
+static inline struct pool_buffer *
+pool_buffer(struct pipe_buffer *buf)
+{
+   assert(buf);
+   return (struct pool_buffer *)buf;
+}
+
+
+static void
+pool_buffer_reference(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+pool_buffer_release(struct pipe_buffer *buf)
+{
+   struct pool_buffer *pool_buf = pool_buffer(buf);
+   struct pool_buffer_manager *pool = pool_buf->mgr;
+   
+   _glthread_LOCK_MUTEX(pool->mutex);
+   LIST_ADD(&pool_buf->head, &pool->free);
+   pool->numFree++;
+   _glthread_UNLOCK_MUTEX(pool->mutex);
+}
+
+
+static void *
+pool_buffer_map(struct pipe_buffer *buf, unsigned flags)
+{
+   struct pool_buffer *pool_buf = pool_buffer(buf);
+   struct pool_buffer_manager *pool = pool_buf->mgr;
+   void *map;
+
+   _glthread_LOCK_MUTEX(pool->mutex);
+   map = (unsigned char *) pool->map + pool_buf->start;
+   _glthread_UNLOCK_MUTEX(pool->mutex);
+   return map;
+}
+
+
+static void
+pool_buffer_unmap(struct pipe_buffer *buf)
+{
+   /* No-op */
+}
+
+
+static void
+pool_buffer_get_base_buffer(struct pipe_buffer *buf,
+                            struct pipe_buffer **base_buf,
+                            unsigned *offset)
+{
+   struct pool_buffer *pool_buf = pool_buffer(buf);
+   struct pool_buffer_manager *pool = pool_buf->mgr;
+   buffer_get_base_buffer(pool->buffer, base_buf, offset);
+   *offset += pool_buf->start;
+}
+
+
+static const struct pipe_buffer_vtbl 
+pool_buffer_vtbl = {
+      pool_buffer_reference,
+      pool_buffer_release,
+      pool_buffer_map,
+      pool_buffer_unmap,
+      pool_buffer_get_base_buffer
+};
+
+
+static struct pipe_buffer *
+pool_bufmgr_create_buffer(struct buffer_manager *mgr, size_t size)
+{
+   struct pool_buffer_manager *pool = pool_buffer_manager(mgr);
+   struct pool_buffer *pool_buf;
+   struct list_head *item;
+
+   assert(size == pool->bufSize);
+   
+   _glthread_LOCK_MUTEX(pool->mutex);
+
+   if (pool->numFree == 0) {
+      _glthread_UNLOCK_MUTEX(pool->mutex);
+      fprintf(stderr, "warning: out of fixed size buffer objects\n");
+      return NULL;
+   }
+
+   item = pool->free.next;
+
+   if (item == &pool->free) {
+      _glthread_UNLOCK_MUTEX(pool->mutex);
+      fprintf(stderr, "error: fixed size buffer pool corruption\n");
+      return NULL;
+   }
+
+   LIST_DEL(item);
+   --pool->numFree;
+
+   _glthread_UNLOCK_MUTEX(pool->mutex);
+   pool_buf = LIST_ENTRY(struct pool_buffer, item, head);
+   return SUPER(pool_buf);
+}
+
+
+static void
+pool_bufmgr_destroy(struct buffer_manager *mgr)
+{
+   struct pool_buffer_manager *pool = pool_buffer_manager(mgr);
+   _glthread_LOCK_MUTEX(pool->mutex);
+
+   free(pool->bufs);
+   
+   buffer_unmap(pool->buffer);
+   buffer_release(pool->buffer);
+   
+   _glthread_UNLOCK_MUTEX(pool->mutex);
+   
+   free(mgr);
+}
+
+
+struct buffer_manager *
+pool_bufmgr_create(struct buffer_manager *provider, 
+                   size_t numBufs, 
+                   size_t bufSize) 
+{
+   struct pool_buffer_manager *pool;
+   struct pool_buffer *pool_buf;
+   int i;
+
+   pool = (struct pool_buffer_manager *)calloc(1, sizeof(*pool));
+   if (!pool)
+      return NULL;
+
+   pool->base.destroy = pool_bufmgr_destroy;
+   pool->base.create_buffer = pool_bufmgr_create_buffer;
+
+   LIST_INITHEAD(&pool->free);
+
+   pool->numTot = numBufs;
+   pool->numFree = numBufs;
+   pool->bufSize = bufSize;
+   
+   _glthread_INIT_MUTEX(pool->mutex);
+
+   pool->buffer = provider->create_buffer(provider, numBufs*bufSize); 
+   if (!pool->buffer)
+      goto failure;
+
+   pool->map = buffer_map(pool->buffer,
+                          PIPE_BUFFER_FLAG_READ |
+                          PIPE_BUFFER_FLAG_WRITE );
+   if(!pool->map)
+      goto failure;
+
+   pool->bufs = (struct pool_buffer *) malloc(numBufs * sizeof(*pool->bufs));
+   if (!pool->bufs)
+      goto failure;
+
+   pool_buf = pool->bufs;
+   for (i = 0; i < numBufs; ++i) {
+      pool_buf->base.vtbl = &pool_buffer_vtbl;
+      pool_buf->mgr = pool;
+      pool_buf->start = i * bufSize;
+      LIST_ADDTAIL(&pool_buf->head, &pool->free);
+      pool_buf++;
+   }
+
+   return SUPER(pool);
+   
+failure:
+   if(pool->bufs)
+      free(pool->bufs);
+   if(pool->map)
+      buffer_unmap(pool->buffer);
+   if(pool->buffer)
+      buffer_release(pool->buffer);
+   if(pool)
+      free(pool);
+   return NULL;
+}
diff --git a/src/mesa/pipe/softpipe/sp_context.c b/src/mesa/pipe/softpipe/sp_context.c
index df4e0cbd5a..809b165f45 100644
--- a/src/mesa/pipe/softpipe/sp_context.c
+++ b/src/mesa/pipe/softpipe/sp_context.c
@@ -244,7 +244,7 @@ struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
    uint i;
 
 #if defined(__i386__) || defined(__386__)
-   softpipe->use_sse = GETENV( "GALLIUM_SSE" ) != NULL;
+   softpipe->use_sse = GETENV( "GALLIUM_NOSSE" ) == NULL;
 #else
    softpipe->use_sse = FALSE;
 #endif
diff --git a/src/mesa/pipe/softpipe/sp_prim_setup.c b/src/mesa/pipe/softpipe/sp_prim_setup.c
index 9f5a43a827..6980564bdc 100644
--- a/src/mesa/pipe/softpipe/sp_prim_setup.c
+++ b/src/mesa/pipe/softpipe/sp_prim_setup.c
@@ -1124,6 +1124,12 @@ static void reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void render_destroy( struct draw_stage *stage )
+{
+   FREE( stage );
+}
+
+
 /**
  * Create a new primitive setup/render stage.
  */
@@ -1139,6 +1145,7 @@ struct draw_stage *sp_draw_render_stage( struct softpipe_context *softpipe )
    setup->stage.tri = setup_tri;
    setup->stage.end = setup_end;
    setup->stage.reset_stipple_counter = reset_stipple_counter;
+   setup->stage.destroy = render_destroy;
 
    setup->quad.coef = setup->coef;
 
diff --git a/src/mesa/pipe/softpipe/sp_prim_vbuf.c b/src/mesa/pipe/softpipe/sp_prim_vbuf.c
index 59cf1c4eb7..2cfdeb5809 100644
--- a/src/mesa/pipe/softpipe/sp_prim_vbuf.c
+++ b/src/mesa/pipe/softpipe/sp_prim_vbuf.c
@@ -275,6 +275,16 @@ static void reset_stipple_counter( struct draw_stage *stage )
 }
 
 
+static void vbuf_destroy( struct draw_stage *stage )
+{
+   struct vbuf_stage *vbuf = vbuf_stage( stage );
+
+   FREE( vbuf->element_map );
+   FREE( vbuf->vertex_map );
+   FREE( stage );
+}
+
+
 /**
  * Create a new primitive vbuf/render stage.
  */
@@ -290,6 +300,7 @@ struct draw_stage *sp_draw_vbuf_stage( struct draw_context *draw_context,
    vbuf->stage.tri = vbuf_first_tri;
    vbuf->stage.end = vbuf_end;
    vbuf->stage.reset_stipple_counter = reset_stipple_counter;
+   vbuf->stage.destroy = vbuf_destroy;
 
    vbuf->pipe = pipe;
    vbuf->draw = draw;
diff --git a/src/mesa/pipe/softpipe/sp_texture.c b/src/mesa/pipe/softpipe/sp_texture.c
index 2288c343bf..cfe9628184 100644
--- a/src/mesa/pipe/softpipe/sp_texture.c
+++ b/src/mesa/pipe/softpipe/sp_texture.c
@@ -382,7 +382,9 @@ softpipe_texture_create(struct pipe_context *pipe, struct pipe_texture **pt)
 
       if (softpipe_mipmap_tree_layout(pipe, spt)) {
 	 spt->buffer = pipe->winsys->buffer_create(pipe->winsys,
-						   PIPE_SURFACE_FLAG_TEXTURE);
+						   32,
+						   PIPE_SURFACE_FLAG_TEXTURE,
+						   0);
 
 	 if (spt->buffer) {
 	    pipe->winsys->buffer_data(pipe->winsys, spt->buffer,
diff --git a/src/mesa/pipe/tgsi/exec/tgsi_exec.c b/src/mesa/pipe/tgsi/exec/tgsi_exec.c
index dd11dd58b7..ab83f27c1b 100644
--- a/src/mesa/pipe/tgsi/exec/tgsi_exec.c
+++ b/src/mesa/pipe/tgsi/exec/tgsi_exec.c
@@ -1066,6 +1066,10 @@ fetch_source(
    case TGSI_UTIL_SIGN_KEEP:
       break;
    }
+
+   if (reg->SrcRegisterExtMod.Complement) {
+      micro_sub( chan, &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], chan );
+   }
 }
 
 static void
@@ -1808,7 +1812,7 @@ exec_instruction(
       micro_sub( &r[2], &r[2], &r[5] );
 
       if (IS_CHANNEL_ENABLED( *inst, CHAN_X )) {
-	 STORE( &r[2], 0, CHAN_X );
+         STORE( &r[2], 0, CHAN_X );
       }
 
       FETCH(&r[2], 1, CHAN_X);
@@ -1821,7 +1825,7 @@ exec_instruction(
       micro_sub( &r[3], &r[3], &r[1] );
 
       if (IS_CHANNEL_ENABLED( *inst, CHAN_Y )) {
-	 STORE( &r[3], 0, CHAN_Y );
+         STORE( &r[3], 0, CHAN_Y );
       }
 
       micro_mul( &r[5], &r[5], &r[4] );
@@ -1829,11 +1833,11 @@ exec_instruction(
       micro_sub( &r[5], &r[5], &r[0] );
 
       if (IS_CHANNEL_ENABLED( *inst, CHAN_Z )) {
-	 STORE( &r[5], 0, CHAN_Z );
+         STORE( &r[5], 0, CHAN_Z );
       }
 
       if (IS_CHANNEL_ENABLED( *inst, CHAN_W )) {
-	 STORE( &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], 0, CHAN_W );
+         STORE( &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C], 0, CHAN_W );
       }
       break;
 
diff --git a/src/mesa/pipe/tgsi/util/tgsi_dump.c b/src/mesa/pipe/tgsi/util/tgsi_dump.c
index 982d5ce796..3f4d930dec 100644
--- a/src/mesa/pipe/tgsi/util/tgsi_dump.c
+++ b/src/mesa/pipe/tgsi/util/tgsi_dump.c
@@ -31,129 +31,196 @@
 #include "tgsi_parse.h"
 #include "tgsi_build.h"
 
-struct text_dump
+struct gen_dump
 {
-   FILE     *file;
    unsigned tabs;
+   void  (* write)(
+               struct gen_dump   *dump,
+               const void        *data,
+               unsigned          size );
+};
+
+struct text_dump
+{
+   struct gen_dump   base;
+   char              *text;
+   unsigned          length;
+   unsigned          capacity;
 };
 
 static void
-text_dump_str(
-   struct text_dump *dump,
-   const char *str )
+_text_dump_write(
+   struct gen_dump   *dump,
+   const void        *data,
+   unsigned          size )
 {
-   unsigned i;
-   size_t len = strlen( str );
+   struct text_dump  *td = (struct text_dump *) dump;
+   unsigned          new_length = td->length + size;
+
+   if( new_length >= td->capacity ) {
+      unsigned new_capacity = td->capacity;
+
+      do {
+         if( new_capacity == 0 ) {
+            new_capacity = 256;
+         }
+         else {
+            new_capacity *= 2;
+         }
+      } while( new_length >= new_capacity );
+      td->text = (char *) REALLOC(
+         td->text,
+         td->capacity,
+         new_capacity );
+      td->capacity = new_capacity;
+   }
+   memcpy(
+      &td->text[td->length],
+      data,
+      size );
+   td->length = new_length;
+   td->text[td->length] = '\0';
+}
+
+struct file_dump
+{
+   struct gen_dump   base;
+   FILE              *file;
+};
+
+static void
+_file_dump_write(
+   struct gen_dump   *dump,
+   const void        *data,
+   unsigned          size )
+{
+   struct file_dump  *fd = (struct file_dump *) dump;
+
+#if 0
+   fwrite( data, 1, size, fd->file );
+#else
+   {
+      unsigned i;
 
-   for( i = 0; i < len; i++ ) {
-      fprintf( dump->file, "%c", str[i] );
+      for (i = 0; i < size; i++ ) {
+         fprintf( fd->file, "%c", ((const char *) data)[i] );
+      }
+   }
+#endif
+}
 
-      if( str[i] == '\n' ) {
+static void
+gen_dump_str(
+   struct gen_dump   *dump,
+   const char        *str )
+{
+   unsigned i;
+   size_t   len = strlen( str );
+
+   for (i = 0; i < len; i++) {
+      dump->write( dump, &str[i], 1 );
+      if (str[i] == '\n') {
          unsigned i;
 
-         for( i = 0; i < dump->tabs; i++ ) {
-            fprintf( dump->file, "    " );
+         for (i = 0; i < dump->tabs; i++) {
+            dump->write( dump, "    ", 4 );
          }
       }
    }
 }
 
 static void
-text_dump_chr(
-   struct text_dump *dump,
-   const char chr )
+gen_dump_chr(
+   struct gen_dump   *dump,
+   const char        chr )
 {
-   char str[2];
-
-   str[0] = chr;
-   str[1] = '\0';
-   text_dump_str( dump, str );
+   dump->write( dump, &chr, 1 );
 }
 
 static void
-text_dump_uix(
-   struct text_dump *dump,
-   const unsigned ui )
+gen_dump_uix(
+   struct gen_dump   *dump,
+   const unsigned    ui )
 {
-   char str[36];
+   char  str[36];
 
    sprintf( str, "0x%x", ui );
-   text_dump_str( dump, str );
+   gen_dump_str( dump, str );
 }
 
 static void
-text_dump_uid(
-   struct text_dump *dump,
-   const unsigned ui )
+gen_dump_uid(
+   struct gen_dump   *dump,
+   const unsigned    ui )
 {
-   char str[16];
+   char  str[16];
 
    sprintf( str, "%u", ui );
-   text_dump_str( dump, str );
+   gen_dump_str( dump, str );
 }
 
 static void
-text_dump_sid(
-   struct text_dump *dump,
-   const int si )
+gen_dump_sid(
+   struct gen_dump   *dump,
+   const int         si )
 {
-   char str[16];
+   char  str[16];
 
    sprintf( str, "%d", si );
-   text_dump_str( dump, str );
+   gen_dump_str( dump, str );
 }
 
 static void
-text_dump_flt(
-   struct text_dump *dump,
-   const float f )
+gen_dump_flt(
+   struct gen_dump   *dump,
+   const float       flt )
 {
-   char str[48];
+   char  str[48];
 
-   sprintf( str, "%10.4f", f );
-   text_dump_str( dump, str );
+   sprintf( str, "%10.4f", flt );
+   gen_dump_str( dump, str );
 }
 
 static void
-text_dump_enum(
-   struct text_dump *dump,
-   const unsigned e,
-   const char **enums,
-   const unsigned enums_count )
+gen_dump_enum(
+   struct gen_dump   *dump,
+   const unsigned    e,
+   const char        **enums,
+   const unsigned    enums_count )
 {
-   if( e >= enums_count ) {
-      text_dump_uid( dump, e );
+   if (e >= enums_count) {
+      gen_dump_uid( dump, e );
    }
    else {
-      text_dump_str( dump, enums[e] );
+      gen_dump_str( dump, enums[e] );
    }
 }
 
 static void
-text_dump_tab(
-   struct text_dump *dump )
+gen_dump_tab(
+   struct gen_dump   *dump )
 {
-   dump->tabs++;
+   ++dump->tabs;
 }
 
 static void
-text_dump_untab(
-   struct text_dump *dump )
+gen_dump_untab(
+   struct gen_dump   *dump )
 {
    assert( dump->tabs > 0 );
 
    --dump->tabs;
 }
 
-#define TXT(S)          text_dump_str( dump, S )
-#define CHR(C)          text_dump_chr( dump, C )
-#define UIX(I)          text_dump_uix( dump, I )
-#define UID(I)          text_dump_uid( dump, I )
-#define SID(I)          text_dump_sid( dump, I )
-#define FLT(F)          text_dump_flt( dump, F )
-#define TAB()           text_dump_tab( dump )
-#define UNT()           text_dump_untab( dump )
-#define ENM(E,ENUMS)    text_dump_enum( dump, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
+#define TXT(S)          gen_dump_str( dump, S )
+#define CHR(C)          gen_dump_chr( dump, C )
+#define UIX(I)          gen_dump_uix( dump, I )
+#define UID(I)          gen_dump_uid( dump, I )
+#define SID(I)          gen_dump_sid( dump, I )
+#define FLT(F)          gen_dump_flt( dump, F )
+#define TAB()           gen_dump_tab( dump )
+#define UNT()           gen_dump_untab( dump )
+#define ENM(E,ENUMS)    gen_dump_enum( dump, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
 
 static const char *TGSI_PROCESSOR_TYPES[] =
 {
@@ -659,8 +726,8 @@ static const char *TGSI_MODULATES[] =
 
 static void
 dump_declaration_short(
-   struct text_dump *dump,
-   struct tgsi_full_declaration *decl )
+   struct gen_dump               *dump,
+   struct tgsi_full_declaration  *decl )
 {
    TXT( "\nDCL " );
    ENM( decl->Declaration.File, TGSI_FILES_SHORT );
@@ -711,11 +778,11 @@ dump_declaration_short(
 
 static void
 dump_declaration_verbose(
-   struct text_dump *dump,
-   struct tgsi_full_declaration *decl,
-   unsigned ignored,
-   unsigned deflt,
-   struct tgsi_full_declaration *fd )
+   struct gen_dump               *dump,
+   struct tgsi_full_declaration  *decl,
+   unsigned                      ignored,
+   unsigned                      deflt,
+   struct tgsi_full_declaration  *fd )
 {
    TXT( "\nFile       : " );
    ENM( decl->Declaration.File, TGSI_FILES );
@@ -792,7 +859,7 @@ dump_declaration_verbose(
 
 static void
 dump_immediate_short(
-   struct text_dump *dump,
+   struct gen_dump            *dump,
    struct tgsi_full_immediate *imm )
 {
    unsigned i;
@@ -820,9 +887,9 @@ dump_immediate_short(
 
 static void
 dump_immediate_verbose(
-   struct text_dump *dump,
+   struct gen_dump            *dump,
    struct tgsi_full_immediate *imm,
-   unsigned ignored )
+   unsigned                   ignored )
 {
    unsigned i;
 
@@ -849,12 +916,12 @@ dump_immediate_verbose(
 
 static void
 dump_instruction_short(
-   struct text_dump *dump,
-   struct tgsi_full_instruction *inst,
-   unsigned instno )
+   struct gen_dump               *dump,
+   struct tgsi_full_instruction  *inst,
+   unsigned                      instno )
 {
    unsigned i;
-   boolean first_reg = TRUE;
+   boolean  first_reg = TRUE;
 
    CHR( '\n' );
    UID( instno );
@@ -915,6 +982,9 @@ dump_instruction_short(
       }
       CHR( ' ' );
 
+      if( src->SrcRegisterExtMod.Complement ) {
+         TXT( "(1 - " );
+      }
       if( src->SrcRegisterExtMod.Negate  ) {
          CHR( '-' );
       }
@@ -957,6 +1027,9 @@ dump_instruction_short(
       if( src->SrcRegisterExtMod.Absolute ) {
          CHR( '|' );
       }
+      if( src->SrcRegisterExtMod.Complement ) {
+         CHR( ')' );
+      }
 
       first_reg = FALSE;
    }
@@ -975,11 +1048,11 @@ dump_instruction_short(
 
 static void
 dump_instruction_verbose(
-   struct text_dump *dump,
-   struct tgsi_full_instruction *inst,
-   unsigned ignored,
-   unsigned deflt,
-   struct tgsi_full_instruction *fi )
+   struct gen_dump               *dump,
+   struct tgsi_full_instruction  *inst,
+   unsigned                      ignored,
+   unsigned                      deflt,
+   struct tgsi_full_instruction  *fi )
 {
    unsigned i;
 
@@ -1317,13 +1390,12 @@ dump_instruction_verbose(
    }
 }
 
-void
-tgsi_dump(
+static void
+dump_gen(
+   struct gen_dump         *dump,
    const struct tgsi_token *tokens,
-   unsigned flags )
+   unsigned                flags )
 {
-   struct text_dump _dump;
-   struct text_dump *dump = &_dump;
    struct tgsi_parse_context parse;
    struct tgsi_full_instruction fi;
    struct tgsi_full_declaration fd;
@@ -1332,18 +1404,7 @@ tgsi_dump(
    unsigned deflt = !(flags & TGSI_DUMP_NO_DEFAULT);
    unsigned instno = 0;
 
-   {
-#if 0
-      static unsigned counter = 0;
-      char buffer[64];
-
-      sprintf( buffer, "tgsi-dump-%.4u.txt", counter++ );
-      dump->file = fopen( buffer, "wt" );
-#else
-      dump->file = stderr;
-#endif
-      dump->tabs = 0;
-   }
+   dump->tabs = 0;
 
    /* sanity check */
    assert(strcmp(TGSI_OPCODES[TGSI_OPCODE_CONT], "OPCODE_CONT") == 0);
@@ -1457,3 +1518,52 @@ tgsi_dump(
    tgsi_parse_free( &parse );
 }
 
+void
+tgsi_dump(
+   const struct tgsi_token *tokens,
+   unsigned                flags )
+{
+   struct file_dump  dump;
+
+   dump.base.write = _file_dump_write;
+#if 0
+   {
+      static unsigned   counter = 0;
+      char              buffer[64];
+      sprintf( buffer, "tgsi-dump-%.4u.txt", counter++ );
+      dump.file = fopen( buffer, "wt" );
+   }
+#else
+   dump.file = stderr;
+#endif
+
+   dump_gen(
+      &dump.base,
+      tokens,
+      flags );
+
+#if 0
+   fclose( dump.file );
+#endif
+}
+
+void
+tgsi_dump_str(
+   char                    **str,
+   const struct tgsi_token *tokens,
+   unsigned                flags )
+{
+   struct text_dump  dump;
+
+   dump.base.write = _text_dump_write;
+   dump.text = NULL;
+   dump.length = 0;
+   dump.capacity = 0;
+
+   dump_gen(
+      &dump.base,
+      tokens,
+      flags );
+
+   *str = dump.text;
+}
diff --git a/src/mesa/pipe/tgsi/util/tgsi_dump.h b/src/mesa/pipe/tgsi/util/tgsi_dump.h
index 70860c0885..1adc9db251 100644
--- a/src/mesa/pipe/tgsi/util/tgsi_dump.h
+++ b/src/mesa/pipe/tgsi/util/tgsi_dump.h
@@ -12,7 +12,13 @@ extern "C" {
 void
 tgsi_dump(
    const struct tgsi_token *tokens,
-   unsigned flags );
+   unsigned                flags );
+
+void
+tgsi_dump_str(
+   char                    **str,
+   const struct tgsi_token *tokens,
+   unsigned                flags );
 
 #if defined __cplusplus
 } // extern "C"
diff --git a/src/mesa/pipe/xlib/xm_winsys.c b/src/mesa/pipe/xlib/xm_winsys.c
index 976884ad52..c347d1c2a3 100644
--- a/src/mesa/pipe/xlib/xm_winsys.c
+++ b/src/mesa/pipe/xlib/xm_winsys.c
@@ -155,7 +155,7 @@ xm_buffer_reference(struct pipe_winsys *pws,
    }
 }
 
-static void
+static int
 xm_buffer_data(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
                unsigned size, const void *data, unsigned usage )
 {
@@ -169,9 +169,10 @@ xm_buffer_data(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
    }
    if (data)
       memcpy(xm_buf->data, data, size);
+   return 0;
 }
 
-static void
+static int
 xm_buffer_subdata(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
                   unsigned long offset, unsigned long size, const void *data)
 {
@@ -180,9 +181,10 @@ xm_buffer_subdata(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
    assert(!xm_buf->userBuffer);
    assert(b);
    memcpy(b + offset, data, size);
+   return 0;
 }
 
-static void
+static int
 xm_buffer_get_subdata(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
                       unsigned long offset, unsigned long size, void *data)
 {
@@ -191,6 +193,7 @@ xm_buffer_get_subdata(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
    assert(!xm_buf->userBuffer);
    assert(b);
    memcpy(data, b + offset, size);
+   return 0;
 }
 
 
@@ -255,7 +258,10 @@ xm_get_name(struct pipe_winsys *pws)
 
 
 static struct pipe_buffer_handle *
-xm_buffer_create(struct pipe_winsys *pws, unsigned flags)
+xm_buffer_create(struct pipe_winsys *pws, 
+                 unsigned alignment, 
+                 unsigned flags,
+                 unsigned hints)
 {
    struct xm_buffer *buffer = CALLOC_STRUCT(xm_buffer);
    buffer->refcount = 1;