Merge branch 'gallium-texture-transfer'

Conflicts:
	src/gallium/drivers/softpipe/sp_tile_cache.c

13 files changed, 331 insertions, 182 deletions

diff --git a/src/gallium/drivers/i915simple/i915_screen.c b/src/gallium/drivers/i915simple/i915_screen.c
index 39e48105b3..b7bd3b3b74 100644
--- a/src/gallium/drivers/i915simple/i915_screen.c
+++ b/src/gallium/drivers/i915simple/i915_screen.c
@@ -204,17 +204,79 @@ i915_destroy_screen( struct pipe_screen *screen )
 }
 
 
+static struct pipe_transfer*
+i915_get_tex_transfer(struct pipe_screen *screen,
+                      struct pipe_texture *texture,
+                      unsigned face, unsigned level, unsigned zslice,
+                      enum pipe_transfer_usage usage, unsigned x, unsigned y,
+                      unsigned w, unsigned h)
+{
+   struct i915_texture *tex = (struct i915_texture *)texture;
+   struct i915_transfer *trans;
+   unsigned offset;  /* in bytes */
+
+   if (texture->target == PIPE_TEXTURE_CUBE) {
+      offset = tex->image_offset[level][face];
+   }
+   else if (texture->target == PIPE_TEXTURE_3D) {
+      offset = tex->image_offset[level][zslice];
+   }
+   else {
+      offset = tex->image_offset[level][0];
+      assert(face == 0);
+      assert(zslice == 0);
+   }
+
+   trans = CALLOC_STRUCT(i915_transfer);
+   if (trans) {
+      trans->base.refcount = 1;
+      pipe_texture_reference(&trans->base.texture, texture);
+      trans->base.format = trans->base.format;
+      trans->base.width = w;
+      trans->base.height = h;
+      trans->base.block = texture->block;
+      trans->base.nblocksx = texture->nblocksx[level];
+      trans->base.nblocksy = texture->nblocksy[level];
+      trans->base.stride = tex->stride;
+      trans->offset = offset;
+      trans->base.usage = usage;
+   }
+   return &trans->base;
+}
+
+static void
+i915_tex_transfer_release(struct pipe_screen *screen,
+                          struct pipe_transfer **transfer)
+{
+   struct pipe_transfer *trans = *transfer;
+
+   if (--trans->refcount == 0) {
+      pipe_texture_reference(&trans->texture, NULL);
+      FREE(trans);
+   }
+
+   *transfer = NULL;
+}
+
 static void *
-i915_surface_map( struct pipe_screen *screen,
-                  struct pipe_surface *surface,
-                  unsigned flags )
+i915_transfer_map( struct pipe_screen *screen,
+                   struct pipe_transfer *transfer )
 {
-   struct i915_texture *tex = (struct i915_texture *)surface->texture;
-   char *map = pipe_buffer_map( screen, tex->buffer, flags );
+   struct i915_texture *tex = (struct i915_texture *)transfer->texture;
+   char *map;
+   unsigned flags = 0;
+
+   if (transfer->usage != PIPE_TRANSFER_WRITE)
+      flags |= PIPE_BUFFER_USAGE_CPU_READ;
+
+   if (transfer->usage != PIPE_TRANSFER_READ)
+      flags |= PIPE_BUFFER_USAGE_CPU_WRITE;
+
+   map = pipe_buffer_map( screen, tex->buffer, flags );
    if (map == NULL)
       return NULL;
 
-   if (surface->texture &&
+   if (transfer->texture &&
        (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) 
    {
       /* Do something to notify contexts of a texture change.  
@@ -222,14 +284,16 @@ i915_surface_map( struct pipe_screen *screen,
       /* i915_screen(screen)->timestamp++; */
    }
    
-   return map + surface->offset;
+   return map + i915_transfer(transfer)->offset +
+      transfer->y / transfer->block.height * transfer->stride +
+      transfer->x / transfer->block.width * transfer->block.size;
 }
 
 static void
-i915_surface_unmap(struct pipe_screen *screen,
-                   struct pipe_surface *surface)
+i915_transfer_unmap(struct pipe_screen *screen,
+                    struct pipe_transfer *transfer)
 {
-   struct i915_texture *tex = (struct i915_texture *)surface->texture;
+   struct i915_texture *tex = (struct i915_texture *)transfer->texture;
    pipe_buffer_unmap( screen, tex->buffer );
 }
 
@@ -278,8 +342,10 @@ i915_create_screen(struct pipe_winsys *winsys, uint pci_id)
    i915screen->screen.get_param = i915_get_param;
    i915screen->screen.get_paramf = i915_get_paramf;
    i915screen->screen.is_format_supported = i915_is_format_supported;
-   i915screen->screen.surface_map = i915_surface_map;
-   i915screen->screen.surface_unmap = i915_surface_unmap;
+   i915screen->screen.get_tex_transfer = i915_get_tex_transfer;
+   i915screen->screen.tex_transfer_release = i915_tex_transfer_release;
+   i915screen->screen.transfer_map = i915_transfer_map;
+   i915screen->screen.transfer_unmap = i915_transfer_unmap;
 
    i915_init_screen_texture_functions(&i915screen->screen);
    u_simple_screen_init(&i915screen->screen);
diff --git a/src/gallium/drivers/i915simple/i915_screen.h b/src/gallium/drivers/i915simple/i915_screen.h
index 73b0ff05ce..a371663453 100644
--- a/src/gallium/drivers/i915simple/i915_screen.h
+++ b/src/gallium/drivers/i915simple/i915_screen.h
@@ -50,13 +50,30 @@ struct i915_screen
 };
 
 
-/** cast wrapper */
+/**
+ * Subclass of pipe_transfer
+ */
+struct i915_transfer
+{
+   struct pipe_transfer base;
+
+   unsigned offset;
+};
+
+
+/** cast wrappers */
 static INLINE struct i915_screen *
 i915_screen(struct pipe_screen *pscreen)
 {
    return (struct i915_screen *) pscreen;
 }
 
+static INLINE struct i915_transfer *
+i915_transfer( struct pipe_transfer *transfer )
+{
+   return (struct i915_transfer *)transfer;
+}
+
 
 extern struct pipe_screen *
 i915_create_screen(struct pipe_winsys *winsys, uint pci_id);
diff --git a/src/gallium/drivers/i915simple/i915_state_emit.c b/src/gallium/drivers/i915simple/i915_state_emit.c
index 6558cf1c3e..26e03f5127 100644
--- a/src/gallium/drivers/i915simple/i915_state_emit.c
+++ b/src/gallium/drivers/i915simple/i915_state_emit.c
@@ -211,7 +211,6 @@ i915_emit_hardware_state(struct i915_context *i915 )
       struct pipe_surface *depth_surface = i915->framebuffer.zsbuf;
 
       if (cbuf_surface) {
-	 unsigned cpitch = cbuf_surface->stride;
 	 unsigned ctile = BUF_3D_USE_FENCE;
          struct i915_texture *tex = (struct i915_texture *)
                                     cbuf_surface->texture;
@@ -225,7 +224,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
 	 OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
 
 	 OUT_BATCH(BUF_3D_ID_COLOR_BACK |
-		   BUF_3D_PITCH(cpitch) |  /* pitch in bytes */
+		   BUF_3D_PITCH(tex->stride) |  /* pitch in bytes */
 		   ctile);
 
 	 OUT_RELOC(tex->buffer,
@@ -236,7 +235,6 @@ i915_emit_hardware_state(struct i915_context *i915 )
       /* What happens if no zbuf??
        */
       if (depth_surface) {
-	 unsigned zpitch = depth_surface->stride;
 	 unsigned ztile = BUF_3D_USE_FENCE;
          struct i915_texture *tex = (struct i915_texture *)
                                     depth_surface->texture;
@@ -250,7 +248,7 @@ i915_emit_hardware_state(struct i915_context *i915 )
 	 OUT_BATCH(_3DSTATE_BUF_INFO_CMD);
 
 	 OUT_BATCH(BUF_3D_ID_DEPTH |
-		   BUF_3D_PITCH(zpitch) |  /* pitch in bytes */
+		   BUF_3D_PITCH(tex->stride) |  /* pitch in bytes */
 		   ztile);
 
 	 OUT_RELOC(tex->buffer,
diff --git a/src/gallium/drivers/i915simple/i915_surface.c b/src/gallium/drivers/i915simple/i915_surface.c
index 94e2deaf61..7eec649906 100644
--- a/src/gallium/drivers/i915simple/i915_surface.c
+++ b/src/gallium/drivers/i915simple/i915_surface.c
@@ -47,44 +47,22 @@ i915_surface_copy(struct pipe_context *pipe,
 		  struct pipe_surface *src,
 		  unsigned srcx, unsigned srcy, unsigned width, unsigned height)
 {
-   assert( dst != src );
-   assert( dst->block.size == src->block.size );
-   assert( dst->block.width == src->block.height );
-   assert( dst->block.height == src->block.height );
+   struct i915_texture *dst_tex = (struct i915_texture *)dst->texture;
+   struct i915_texture *src_tex = (struct i915_texture *)src->texture;
 
-   if (0) {
-      void *dst_map = pipe->screen->surface_map( pipe->screen,
-                                                 dst,
-                                                 PIPE_BUFFER_USAGE_CPU_WRITE );
-      
-      const void *src_map = pipe->screen->surface_map( pipe->screen,
-                                                       src,
-                                                       PIPE_BUFFER_USAGE_CPU_READ );
-      
-      pipe_copy_rect(dst_map,
-                     &dst->block,
-                     dst->stride,
-                     dstx, dsty,
-                     width, height,
-                     src_map,
-                     do_flip ? -(int) src->stride : src->stride,
-                     srcx, do_flip ? height - 1 - srcy : srcy);
+   assert( dst != src );
+   assert( dst_tex->base.block.size == src_tex->base.block.size );
+   assert( dst_tex->base.block.width == src_tex->base.block.height );
+   assert( dst_tex->base.block.height == src_tex->base.block.height );
+   assert( dst_tex->base.block.width == 1 );
+   assert( dst_tex->base.block.height == 1 );
 
-      pipe->screen->surface_unmap(pipe->screen, src);
-      pipe->screen->surface_unmap(pipe->screen, dst);
-   }
-   else {
-      struct i915_texture *dst_tex = (struct i915_texture *)dst->texture;
-      struct i915_texture *src_tex = (struct i915_texture *)src->texture;
-      assert(dst->block.width == 1);
-      assert(dst->block.height == 1);
-      i915_copy_blit( i915_context(pipe),
-                      do_flip,
-                      dst->block.size,
-		      (unsigned short) src->stride, src_tex->buffer, src->offset,
-		      (unsigned short) dst->stride, dst_tex->buffer, dst->offset,
-		      (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
-   }
+   i915_copy_blit( i915_context(pipe),
+                   do_flip,
+                   dst_tex->base.block.size,
+                   (unsigned short) src_tex->stride, src_tex->buffer, src->offset,
+                   (unsigned short) dst_tex->stride, dst_tex->buffer, dst->offset,
+                   (short) srcx, (short) srcy, (short) dstx, (short) dsty, (short) width, (short) height );
 }
 
 
@@ -94,27 +72,18 @@ i915_surface_fill(struct pipe_context *pipe,
 		  unsigned dstx, unsigned dsty,
 		  unsigned width, unsigned height, unsigned value)
 {
-   if (0) {
-      void *dst_map = pipe->screen->surface_map( pipe->screen,
-                                                 dst,
-                                                 PIPE_BUFFER_USAGE_CPU_WRITE );
+   struct i915_texture *tex = (struct i915_texture *)dst->texture;
 
-      pipe_fill_rect(dst_map, &dst->block, dst->stride, dstx, dsty, width, height, value);
+   assert(tex->base.block.width == 1);
+   assert(tex->base.block.height == 1);
 
-      pipe->screen->surface_unmap(pipe->screen, dst);
-   }
-   else {
-      struct i915_texture *tex = (struct i915_texture *)dst->texture;
-      assert(dst->block.width == 1);
-      assert(dst->block.height == 1);
-      i915_fill_blit( i915_context(pipe),
-		      dst->block.size,
-		      (unsigned short) dst->stride,
-		      tex->buffer, dst->offset,
-		      (short) dstx, (short) dsty,
-		      (short) width, (short) height,
-		      value );
-   }
+   i915_fill_blit( i915_context(pipe),
+                   tex->base.block.size,
+                   (unsigned short) tex->stride,
+                   tex->buffer, dst->offset,
+                   (short) dstx, (short) dsty,
+                   (short) width, (short) height,
+                   value );
 }
 
 
diff --git a/src/gallium/drivers/i915simple/i915_texture.c b/src/gallium/drivers/i915simple/i915_texture.c
index b2ca3a2286..957726523f 100644
--- a/src/gallium/drivers/i915simple/i915_texture.c
+++ b/src/gallium/drivers/i915simple/i915_texture.c
@@ -686,10 +686,6 @@ i915_get_tex_surface(struct pipe_screen *screen,
       ps->format = pt->format;
       ps->width = pt->width[level];
       ps->height = pt->height[level];
-      ps->block = pt->block;
-      ps->nblocksx = pt->nblocksx[level];
-      ps->nblocksy = pt->nblocksy[level];
-      ps->stride = tex->stride;
       ps->offset = offset;
       ps->usage = flags;
       ps->status = PIPE_SURFACE_STATUS_DEFINED;
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index c2d882a819..ff5d1b54a4 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -53,15 +53,15 @@
  * Map any drawing surfaces which aren't already mapped
  */
 void
-softpipe_map_surfaces(struct softpipe_context *sp)
+softpipe_map_transfers(struct softpipe_context *sp)
 {
    unsigned i;
 
    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
-      sp_tile_cache_map_surfaces(sp->cbuf_cache[i]);
+      sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
    }
 
-   sp_tile_cache_map_surfaces(sp->zsbuf_cache);
+   sp_tile_cache_map_transfers(sp->zsbuf_cache);
 }
 
 
@@ -69,7 +69,7 @@ softpipe_map_surfaces(struct softpipe_context *sp)
  * Unmap any mapped drawing surfaces
  */
 void
-softpipe_unmap_surfaces(struct softpipe_context *sp)
+softpipe_unmap_transfers(struct softpipe_context *sp)
 {
    uint i;
 
@@ -78,9 +78,9 @@ softpipe_unmap_surfaces(struct softpipe_context *sp)
    sp_flush_tile_cache(sp, sp->zsbuf_cache);
 
    for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
-      sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]);
+      sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
    }
-   sp_tile_cache_unmap_surfaces(sp->zsbuf_cache);
+   sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
 }
 
 
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index 7e3a25e34b..f117096bf7 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -134,7 +134,7 @@ softpipe_draw_range_elements(struct pipe_context *pipe,
    if (sp->dirty)
       softpipe_update_derived( sp );
 
-   softpipe_map_surfaces(sp);
+   softpipe_map_transfers(sp);
    softpipe_map_constant_buffers(sp);
 
    /*
diff --git a/src/gallium/drivers/softpipe/sp_flush.c b/src/gallium/drivers/softpipe/sp_flush.c
index c21faf57f3..035f4b963e 100644
--- a/src/gallium/drivers/softpipe/sp_flush.c
+++ b/src/gallium/drivers/softpipe/sp_flush.c
@@ -70,7 +70,7 @@ softpipe_flush( struct pipe_context *pipe,
        * that's called before swapbuffers because we don't always want
        * to unmap surfaces when flushing.
        */
-      softpipe_unmap_surfaces(softpipe);
+      softpipe_unmap_transfers(softpipe);
    }
 
    /* Enable to dump BMPs of the color/depth buffers each frame */
diff --git a/src/gallium/drivers/softpipe/sp_state.h b/src/gallium/drivers/softpipe/sp_state.h
index 3eff41ffa5..6f558e6da5 100644
--- a/src/gallium/drivers/softpipe/sp_state.h
+++ b/src/gallium/drivers/softpipe/sp_state.h
@@ -184,10 +184,10 @@ softpipe_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags);
 
 
 void
-softpipe_map_surfaces(struct softpipe_context *sp);
+softpipe_map_transfers(struct softpipe_context *sp);
 
 void
-softpipe_unmap_surfaces(struct softpipe_context *sp);
+softpipe_unmap_transfers(struct softpipe_context *sp);
 
 void
 softpipe_map_texture_surfaces(struct softpipe_context *sp);
diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c
index 3eed0d0d29..28a9784b16 100644
--- a/src/gallium/drivers/softpipe/sp_texture.c
+++ b/src/gallium/drivers/softpipe/sp_texture.c
@@ -215,12 +215,8 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
       ps->refcount = 1;
       pipe_texture_reference(&ps->texture, pt);
       ps->format = pt->format;
-      ps->block = pt->block;
       ps->width = pt->width[level];
       ps->height = pt->height[level];
-      ps->nblocksx = pt->nblocksx[level];
-      ps->nblocksy = pt->nblocksy[level];
-      ps->stride = spt->stride[level];
       ps->offset = spt->level_offset[level];
       ps->usage = usage;
 
@@ -249,8 +245,7 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
 
       if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) {
          ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) *
-            ps->nblocksy *
-            ps->stride;
+            pt->nblocksy[level] * spt->stride[level];
       }
       else {
          assert(face == 0);
@@ -279,21 +274,91 @@ softpipe_tex_surface_release(struct pipe_screen *screen,
 }
 
 
+static struct pipe_transfer *
+softpipe_get_tex_transfer(struct pipe_screen *screen,
+                          struct pipe_texture *texture,
+                          unsigned face, unsigned level, unsigned zslice,
+                          enum pipe_transfer_usage usage,
+                          unsigned x, unsigned y, unsigned w, unsigned h)
+{
+   struct softpipe_texture *sptex = softpipe_texture(texture);
+   struct softpipe_transfer *spt;
+   struct pipe_transfer *pt;
+
+   assert(texture);
+   assert(level <= texture->last_level);
+
+   spt = CALLOC_STRUCT(softpipe_transfer);
+   pt = &spt->base;
+   if (spt) {
+      pt->refcount = 1;
+      pipe_texture_reference(&pt->texture, texture);
+      pt->format = texture->format;
+      pt->block = texture->block;
+      pt->x = x;
+      pt->y = y;
+      pt->width = w;
+      pt->height = h;
+      pt->nblocksx = texture->nblocksx[level];
+      pt->nblocksy = texture->nblocksy[level];
+      pt->stride = sptex->stride[level];
+      spt->offset = sptex->level_offset[level];
+      pt->usage = usage;
+      pt->face = face;
+      pt->level = level;
+      pt->zslice = zslice;
+
+      if (texture->target == PIPE_TEXTURE_CUBE ||
+          texture->target == PIPE_TEXTURE_3D) {
+         spt->offset += ((texture->target == PIPE_TEXTURE_CUBE) ? face :
+                         zslice) * pt->nblocksy * pt->stride;
+      }
+      else {
+         assert(face == 0);
+         assert(zslice == 0);
+      }
+   }
+   return pt;
+}
+
+
+static void 
+softpipe_tex_transfer_release(struct pipe_screen *screen, 
+                              struct pipe_transfer **t)
+{
+   struct softpipe_transfer *transfer = softpipe_transfer(*t);
+   /* Effectively do the texture_update work here - if texture images
+    * needed post-processing to put them into hardware layout, this is
+    * where it would happen.  For softpipe, nothing to do.
+    */
+   assert (transfer->base.texture);
+   if (--transfer->base.refcount == 0) {
+      pipe_texture_reference(&transfer->base.texture, NULL);
+      FREE(transfer);
+   }
+   *t = NULL;
+}
+
+
 static void *
-softpipe_surface_map( struct pipe_screen *screen,
-                      struct pipe_surface *surface,
-                      unsigned flags )
+softpipe_transfer_map( struct pipe_screen *screen,
+                       struct pipe_transfer *transfer )
 {
    ubyte *map;
    struct softpipe_texture *spt;
+   unsigned flags = 0;
 
-   if (flags & ~surface->usage) {
-      assert(0);
-      return NULL;
+   assert(transfer->texture);
+   spt = softpipe_texture(transfer->texture);
+
+   if (transfer->usage != PIPE_TRANSFER_READ) {
+      flags |= PIPE_BUFFER_USAGE_CPU_WRITE;
+   }
+
+   if (transfer->usage != PIPE_TRANSFER_WRITE) {
+      flags |= PIPE_BUFFER_USAGE_CPU_READ;
    }
 
-   assert(surface->texture);
-   spt = softpipe_texture(surface->texture);
    map = pipe_buffer_map(screen, spt->buffer, flags);
    if (map == NULL)
       return NULL;
@@ -301,8 +366,7 @@ softpipe_surface_map( struct pipe_screen *screen,
    /* May want to different things here depending on read/write nature
     * of the map:
     */
-   if (surface->texture &&
-       (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) 
+   if (transfer->texture && transfer->usage != PIPE_TRANSFER_READ) 
    {
       /* Do something to notify sharing contexts of a texture change.
        * In softpipe, that would mean flushing the texture cache.
@@ -310,18 +374,20 @@ softpipe_surface_map( struct pipe_screen *screen,
       softpipe_screen(screen)->timestamp++;
    }
    
-   return map + surface->offset;
+   return map + softpipe_transfer(transfer)->offset +
+      transfer->y / transfer->block.height * transfer->stride +
+      transfer->x / transfer->block.width * transfer->block.size;
 }
 
 
 static void
-softpipe_surface_unmap(struct pipe_screen *screen,
-                       struct pipe_surface *surface)
+softpipe_transfer_unmap(struct pipe_screen *screen,
+                       struct pipe_transfer *transfer)
 {
    struct softpipe_texture *spt;
 
-   assert(surface->texture);
-   spt = softpipe_texture(surface->texture);
+   assert(transfer->texture);
+   spt = softpipe_texture(transfer->texture);
 
    pipe_buffer_unmap( screen, spt->buffer );
 }
@@ -343,6 +409,8 @@ softpipe_init_screen_texture_funcs(struct pipe_screen *screen)
    screen->get_tex_surface = softpipe_get_tex_surface;
    screen->tex_surface_release = softpipe_tex_surface_release;
 
-   screen->surface_map = softpipe_surface_map;
-   screen->surface_unmap = softpipe_surface_unmap;
+   screen->get_tex_transfer = softpipe_get_tex_transfer;
+   screen->tex_transfer_release = softpipe_tex_transfer_release;
+   screen->transfer_map = softpipe_transfer_map;
+   screen->transfer_unmap = softpipe_transfer_unmap;
 }
diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h
index c1636920cd..893aa7d11d 100644
--- a/src/gallium/drivers/softpipe/sp_texture.h
+++ b/src/gallium/drivers/softpipe/sp_texture.h
@@ -51,14 +51,27 @@ struct softpipe_texture
    boolean modified;
 };
 
+struct softpipe_transfer
+{
+   struct pipe_transfer base;
+
+   unsigned long offset;
+};
+
 
-/** cast wrapper */
+/** cast wrappers */
 static INLINE struct softpipe_texture *
 softpipe_texture(struct pipe_texture *pt)
 {
    return (struct softpipe_texture *) pt;
 }
 
+static INLINE struct softpipe_transfer *
+softpipe_transfer(struct pipe_transfer *pt)
+{
+   return (struct softpipe_transfer *) pt;
+}
+
 
 extern void
 softpipe_init_texture_funcs( struct softpipe_context *softpipe );
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c
index bd5a672f77..593360aab0 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.c
@@ -26,7 +26,7 @@
  **************************************************************************/
 
 /**
- * Framebuffer/surface tile caching.
+ * Texture tile caching.
  *
  * Author:
  *    Brian Paul
@@ -52,7 +52,8 @@ struct softpipe_tile_cache
 {
    struct pipe_screen *screen;
    struct pipe_surface *surface;  /**< the surface we're caching */
-   void *surface_map;
+   struct pipe_transfer *transfer;
+   void *transfer_map;
    struct pipe_texture *texture;  /**< if caching a texture */
    struct softpipe_cached_tile entries[NUM_ENTRIES];
    uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32];
@@ -60,8 +61,8 @@ struct softpipe_tile_cache
    uint clear_val;
    boolean depth_stencil; /** Is the surface a depth/stencil format? */
 
-   struct pipe_surface *tex_surf;
-   void *tex_surf_map;
+   struct pipe_transfer *tex_trans;
+   void *tex_trans_map;
    int tex_face, tex_level, tex_z;
 
    struct softpipe_cached_tile tile;  /**< scratch tile for clears */
@@ -131,16 +132,19 @@ sp_create_tile_cache( struct pipe_screen *screen )
 void
 sp_destroy_tile_cache(struct softpipe_tile_cache *tc)
 {
+   struct pipe_screen *screen;
    uint pos;
 
    for (pos = 0; pos < NUM_ENTRIES; pos++) {
       /*assert(tc->entries[pos].x < 0);*/
    }
-   if (tc->surface) {
-      pipe_surface_reference(&tc->surface, NULL);
+   if (tc->transfer) {
+      screen = tc->transfer->texture->screen;
+      screen->tex_transfer_release(screen, &tc->transfer);
    }
-   if (tc->tex_surf) {
-      pipe_surface_reference(&tc->tex_surf, NULL);
+   if (tc->tex_trans) {
+      screen = tc->tex_trans->texture->screen;
+      screen->tex_transfer_release(screen, &tc->tex_trans);
    }
 
    FREE( tc );
@@ -156,18 +160,29 @@ sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
 {
    assert(!tc->texture);
 
-   if (tc->surface_map) {
-      tc->screen->surface_unmap(tc->screen, tc->surface);
-      tc->surface_map = NULL;
+   if (tc->transfer) {
+      struct pipe_screen *screen = tc->transfer->texture->screen;
+
+      if (ps == tc->surface)
+         return;
+
+      if (tc->transfer_map) {
+         tc->screen->transfer_unmap(tc->screen, tc->transfer);
+         tc->transfer_map = NULL;
+      }
+
+      screen->tex_transfer_release(screen, &tc->transfer);
    }
 
-   pipe_surface_reference(&tc->surface, ps);
+   tc->surface = ps;
+
+   if (ps) {
+      struct pipe_screen *screen = ps->texture->screen;
 
-   if (tc->surface) {
-      if (tc->surface_map) /* XXX: this is always NULL!? */
-	 tc->surface_map = tc->screen->surface_map(tc->screen, tc->surface,
-                                                   PIPE_BUFFER_USAGE_CPU_READ | 
-                                                   PIPE_BUFFER_USAGE_CPU_WRITE);
+      tc->transfer = screen->get_tex_transfer(screen, ps->texture, ps->face,
+                                              ps->level, ps->zslice,
+                                              PIPE_TRANSFER_READ_WRITE,
+                                              0, 0, ps->width, ps->height);
 
       tc->depth_stencil = (ps->format == PIPE_FORMAT_S8Z24_UNORM ||
                            ps->format == PIPE_FORMAT_X8Z24_UNORM ||
@@ -181,7 +196,7 @@ sp_tile_cache_set_surface(struct softpipe_tile_cache *tc,
 
 
 /**
- * Return the surface being cached.
+ * Return the transfer being cached.
  */
 struct pipe_surface *
 sp_tile_cache_get_surface(struct softpipe_tile_cache *tc)
@@ -191,30 +206,27 @@ sp_tile_cache_get_surface(struct softpipe_tile_cache *tc)
 
 
 void
-sp_tile_cache_map_surfaces(struct softpipe_tile_cache *tc)
+sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc)
 {
-   if (tc->surface && !tc->surface_map)
-      tc->surface_map = tc->screen->surface_map(tc->screen, tc->surface,
-                                                PIPE_BUFFER_USAGE_CPU_WRITE |
-                                                PIPE_BUFFER_USAGE_CPU_READ);
-
-   if (tc->tex_surf && !tc->tex_surf_map)
-      tc->tex_surf_map = tc->screen->surface_map(tc->screen, tc->tex_surf,
-                                                 PIPE_BUFFER_USAGE_CPU_READ);
+   if (tc->transfer && !tc->transfer_map)
+      tc->transfer_map = tc->screen->transfer_map(tc->screen, tc->transfer);
+
+   if (tc->tex_trans && !tc->tex_trans_map)
+      tc->tex_trans_map = tc->screen->transfer_map(tc->screen, tc->tex_trans);
 }
 
 
 void
-sp_tile_cache_unmap_surfaces(struct softpipe_tile_cache *tc)
+sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc)
 {
-   if (tc->surface_map) {
-      tc->screen->surface_unmap(tc->screen, tc->surface);
-      tc->surface_map = NULL;
+   if (tc->transfer_map) {
+      tc->screen->transfer_unmap(tc->screen, tc->transfer);
+      tc->transfer_map = NULL;
    }
 
-   if (tc->tex_surf_map) {
-      tc->screen->surface_unmap(tc->screen, tc->tex_surf);
-      tc->tex_surf_map = NULL;
+   if (tc->tex_trans_map) {
+      tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
+      tc->tex_trans_map = NULL;
    }
 }
 
@@ -229,15 +241,20 @@ sp_tile_cache_set_texture(struct pipe_context *pipe,
 {
    uint i;
 
-   assert(!tc->surface);
+   assert(!tc->transfer);
 
    pipe_texture_reference(&tc->texture, texture);
 
-   if (tc->tex_surf_map) {
-      tc->screen->surface_unmap(tc->screen, tc->tex_surf);
-      tc->tex_surf_map = NULL;
+   if (tc->transfer) {
+      struct pipe_screen *screen = tc->transfer->texture->screen;
+
+      if (tc->tex_trans_map) {
+         tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
+         tc->tex_trans_map = NULL;
+      }
+
+      screen->tex_transfer_release(screen, &tc->tex_trans);
    }
-   pipe_surface_reference(&tc->tex_surf, NULL);
 
    /* mark as entries as invalid/empty */
    /* XXX we should try to avoid this when the teximage hasn't changed */
@@ -328,20 +345,20 @@ static void
 sp_tile_cache_flush_clear(struct pipe_context *pipe,
                           struct softpipe_tile_cache *tc)
 {
-   struct pipe_surface *ps = tc->surface;
-   const uint w = tc->surface->width;
-   const uint h = tc->surface->height;
+   struct pipe_transfer *pt = tc->transfer;
+   const uint w = tc->transfer->width;
+   const uint h = tc->transfer->height;
    uint x, y;
    uint numCleared = 0;
 
    /* clear the scratch tile to the clear value */
-   clear_tile(&tc->tile, ps->format, tc->clear_val);
+   clear_tile(&tc->tile, pt->format, tc->clear_val);
 
    /* push the tile to all positions marked as clear */
    for (y = 0; y < h; y += TILE_SIZE) {
       for (x = 0; x < w; x += TILE_SIZE) {
          if (is_clear_flag_set(tc->clear_flags, x, y)) {
-            pipe_put_tile_raw(ps,
+            pipe_put_tile_raw(pt,
                               x, y, TILE_SIZE, TILE_SIZE,
                               tc->tile.data.color32, 0/*STRIDE*/);
 
@@ -359,28 +376,28 @@ sp_tile_cache_flush_clear(struct pipe_context *pipe,
 
 
 /**
- * Flush the tile cache: write all dirty tiles back to the surface.
+ * Flush the tile cache: write all dirty tiles back to the transfer.
  * any tiles "flagged" as cleared will be "really" cleared.
  */
 void
 sp_flush_tile_cache(struct softpipe_context *softpipe,
                     struct softpipe_tile_cache *tc)
 {
-   struct pipe_surface *ps = tc->surface;
+   struct pipe_transfer *pt = tc->transfer;
    int inuse = 0, pos;
 
-   if (ps) {
-      /* caching a drawing surface */
+   if (pt) {
+      /* caching a drawing transfer */
       for (pos = 0; pos < NUM_ENTRIES; pos++) {
          struct softpipe_cached_tile *tile = tc->entries + pos;
          if (tile->x >= 0) {
             if (tc->depth_stencil) {
-               pipe_put_tile_raw(ps,
+               pipe_put_tile_raw(pt,
                                  tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                                  tile->data.depth32, 0/*STRIDE*/);
             }
             else {
-               pipe_put_tile_rgba(ps,
+               pipe_put_tile_rgba(pt,
                                   tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                                   (float *) tile->data.color);
             }
@@ -415,7 +432,7 @@ struct softpipe_cached_tile *
 sp_get_cached_tile(struct softpipe_context *softpipe,
                    struct softpipe_tile_cache *tc, int x, int y)
 {
-   struct pipe_surface *ps = tc->surface;
+   struct pipe_transfer *pt = tc->transfer;
 
    /* tile pos in framebuffer: */
    const int tile_x = x & ~(TILE_SIZE - 1);
@@ -431,12 +448,12 @@ sp_get_cached_tile(struct softpipe_context *softpipe,
       if (tile->x != -1) {
          /* put dirty tile back in framebuffer */
          if (tc->depth_stencil) {
-            pipe_put_tile_raw(ps,
+            pipe_put_tile_raw(pt,
                               tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                               tile->data.depth32, 0/*STRIDE*/);
          }
          else {
-            pipe_put_tile_rgba(ps,
+            pipe_put_tile_rgba(pt,
                                tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                                (float *) tile->data.color);
          }
@@ -448,22 +465,22 @@ sp_get_cached_tile(struct softpipe_context *softpipe,
       if (is_clear_flag_set(tc->clear_flags, x, y)) {
          /* don't get tile from framebuffer, just clear it */
          if (tc->depth_stencil) {
-            clear_tile(tile, ps->format, tc->clear_val);
+            clear_tile(tile, pt->format, tc->clear_val);
          }
          else {
-            clear_tile_rgba(tile, ps->format, tc->clear_color);
+            clear_tile_rgba(tile, pt->format, tc->clear_color);
          }
          clear_clear_flag(tc->clear_flags, x, y);
       }
       else {
-         /* get new tile data from surface */
+         /* get new tile data from transfer */
          if (tc->depth_stencil) {
-            pipe_get_tile_raw(ps,
+            pipe_get_tile_raw(pt,
                               tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                               tile->data.depth32, 0/*STRIDE*/);
          }
          else {
-            pipe_get_tile_rgba(ps,
+            pipe_get_tile_rgba(pt,
                                tile->x, tile->y, TILE_SIZE, TILE_SIZE,
                                (float *) tile->data.color);
          }
@@ -531,28 +548,33 @@ sp_get_cached_tile_tex(struct softpipe_context *sp,
       printf("miss at %u  x=%d y=%d z=%d face=%d level=%d\n", pos,
              x/TILE_SIZE, y/TILE_SIZE, z, face, level);
 #endif
-      /* check if we need to get a new surface */
-      if (!tc->tex_surf ||
+      /* check if we need to get a new transfer */
+      if (!tc->tex_trans ||
           tc->tex_face != face ||
           tc->tex_level != level ||
           tc->tex_z != z) {
-         /* get new surface (view into texture) */
+         /* get new transfer (view into texture) */
+
+         if (tc->transfer) {
+            if (tc->tex_trans_map)
+               tc->screen->transfer_unmap(tc->screen, tc->tex_trans);
 
-	 if (tc->tex_surf_map)
-            tc->screen->surface_unmap(tc->screen, tc->tex_surf);
+            screen->tex_transfer_release(screen, &tc->tex_trans);
+         }
 
-         tc->tex_surf = screen->get_tex_surface(screen, tc->texture, face, level, z, 
-                                                PIPE_BUFFER_USAGE_CPU_READ);
-         tc->tex_surf_map = screen->surface_map(screen, tc->tex_surf,
-                                                PIPE_BUFFER_USAGE_CPU_READ);
+         tc->tex_trans = screen->get_tex_transfer(screen, tc->texture, face, level, z, 
+                                                  PIPE_TRANSFER_READ, 0, 0,
+                                                  tc->texture->width[level],
+                                                  tc->texture->height[level]);
+         tc->tex_trans_map = screen->transfer_map(screen, tc->tex_trans);
 
          tc->tex_face = face;
          tc->tex_level = level;
          tc->tex_z = z;
       }
 
-      /* get tile from the surface (view into texture) */
-      pipe_get_tile_rgba(tc->tex_surf,
+      /* get tile from the transfer (view into texture) */
+      pipe_get_tile_rgba(tc->tex_trans,
                          tile_x, tile_y, TILE_SIZE, TILE_SIZE,
                          (float *) tile->data.color);
       tile->x = tile_x;
@@ -579,7 +601,7 @@ sp_tile_cache_clear(struct softpipe_tile_cache *tc, uint clearValue)
 
    tc->clear_val = clearValue;
 
-   switch (tc->surface->format) {
+   switch (tc->transfer->format) {
    case PIPE_FORMAT_R8G8B8A8_UNORM:
       r = (clearValue >> 24) & 0xff;
       g = (clearValue >> 16) & 0xff;
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.h b/src/gallium/drivers/softpipe/sp_tile_cache.h
index a66bb50bcc..9ac3fdda94 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.h
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.h
@@ -74,10 +74,10 @@ extern struct pipe_surface *
 sp_tile_cache_get_surface(struct softpipe_tile_cache *tc);
 
 extern void
-sp_tile_cache_map_surfaces(struct softpipe_tile_cache *tc);
+sp_tile_cache_map_transfers(struct softpipe_tile_cache *tc);
 
 extern void
-sp_tile_cache_unmap_surfaces(struct softpipe_tile_cache *tc);
+sp_tile_cache_unmap_transfers(struct softpipe_tile_cache *tc);
 
 extern void
 sp_tile_cache_set_texture(struct pipe_context *pipe,