Hide texture layout details from the state tracker.

pipe->get_tex_surface() has to be used for access to texture image data.

8 files changed, 415 insertions, 555 deletions

diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c
index f25cfd386a..c4e5af02d5 100644
--- a/src/mesa/state_tracker/st_atom_texture.c
+++ b/src/mesa/state_tracker/st_atom_texture.c
@@ -51,24 +51,24 @@ update_textures(struct st_context *st)
    for (u = 0; u < st->ctx->Const.MaxTextureImageUnits; u++) {
       struct gl_texture_object *texObj
          = st->ctx->Texture.Unit[u]._Current;
-      struct pipe_mipmap_tree *mt;
+      struct pipe_texture *pt;
       if (texObj) {
          GLboolean flush, retval;
 
-         retval = st_finalize_mipmap_tree(st->ctx, st->pipe, u, &flush);
+         retval = st_finalize_texture(st->ctx, st->pipe, u, &flush);
 #if 0
-         printf("finalize_mipmap_tree returned %d, flush = %d\n",
+         printf("finalize_texture returned %d, flush = %d\n",
                 retval, flush);
 #endif
 
-         mt = st_get_texobj_mipmap_tree(texObj);
+         pt = st_get_texobj_texture(texObj);
       }
       else {
-         mt = NULL;
+         pt = NULL;
       }
 
-      st->state.texture[u] = mt;
-      st->pipe->set_texture_state(st->pipe, u, mt);
+      st->state.texture[u] = pt;
+      st->pipe->set_texture_state(st->pipe, u, pt);
    }
 }
 
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c b/src/mesa/state_tracker/st_cb_drawpixels.c
index 39c0cf6b32..c28ad15b29 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -33,6 +33,7 @@
 #include "main/imports.h"
 #include "main/image.h"
 #include "main/macros.h"
+#include "main/texformat.h"
 #include "shader/program.h"
 #include "shader/prog_parameter.h"
 #include "shader/prog_print.h"
@@ -50,6 +51,7 @@
 #include "st_draw.h"
 #include "st_format.h"
 #include "st_mesa_to_tgsi.h"
+#include "st_texture.h"
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_inlines.h"
@@ -440,63 +442,20 @@ _mesa_base_format(GLenum format)
 }
 
 
-
-static struct pipe_mipmap_tree *
-alloc_mipmap_tree(struct st_context *st,
-                  GLsizei width, GLsizei height, uint pipeFormat)
-{
-   const GLbitfield flags = PIPE_SURFACE_FLAG_TEXTURE;
-   struct pipe_mipmap_tree *mt;
-   GLuint cpp;
-
-   mt = CALLOC_STRUCT(pipe_mipmap_tree);
-   if (!mt)
-      return NULL;
-
-   cpp = st_sizeof_format(pipeFormat);
-
-   mt->target = PIPE_TEXTURE_2D;
-   mt->internal_format = GL_RGBA;
-   mt->format = pipeFormat;
-   mt->first_level = 0;
-   mt->last_level = 0;
-   mt->width0 = width;
-   mt->height0 = height;
-   mt->depth0 = 1;
-   mt->cpp = cpp;
-   mt->compressed = 0;
-   mt->pitch = st->pipe->winsys->surface_pitch(st->pipe->winsys, cpp, width,
-					       flags);
-   mt->region = st->pipe->winsys->region_alloc(st->pipe->winsys,
-                                               mt->pitch * cpp * height, flags);
-   mt->depth_pitch = 0;
-   mt->total_height = height;
-   mt->level[0].level_offset = 0;
-   mt->level[0].width = width;
-   mt->level[0].height = height;
-   mt->level[0].depth = 1;
-   mt->level[0].nr_images = 1;
-   mt->level[0].image_offset = NULL;
-   mt->refcount = 1;
-
-   return mt;
-}
-
-
 /**
- * Make mipmap tree containing an image for glDrawPixels image.
+ * Make texture containing an image for glDrawPixels image.
  * If 'pixels' is NULL, leave the texture image data undefined.
  */
-static struct pipe_mipmap_tree *
-make_mipmap_tree(struct st_context *st,
-                 GLsizei width, GLsizei height, GLenum format, GLenum type,
-                 const struct gl_pixelstore_attrib *unpack,
-                 const GLvoid *pixels)
+static struct pipe_texture *
+make_texture(struct st_context *st,
+	     GLsizei width, GLsizei height, GLenum format, GLenum type,
+	     const struct gl_pixelstore_attrib *unpack,
+	     const GLvoid *pixels)
 {
    GLcontext *ctx = st->ctx;
    struct pipe_context *pipe = st->pipe;
    const struct gl_texture_format *mformat;
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
    GLuint pipeFormat, cpp;
    GLenum baseFormat;
 
@@ -509,29 +468,33 @@ make_mipmap_tree(struct st_context *st,
    assert(pipeFormat);
    cpp = st_sizeof_format(pipeFormat);
 
-   mt = alloc_mipmap_tree(st, width, height, pipeFormat);
-   if (!mt)
+   pt = st_texture_create(st, PIPE_TEXTURE_2D, pipeFormat, baseFormat, 0, 0,
+			  width, height, 1, 0);
+   if (!pt)
       return NULL;
 
    if (unpack->BufferObj && unpack->BufferObj->Name) {
       /*
-      mt->region = buffer_object_region(unpack->BufferObj);
+      pt->region = buffer_object_region(unpack->BufferObj);
       */
       printf("st_DrawPixels (sourcing from PBO not implemented yet)\n");
    }
 
    {
+      struct pipe_surface *surface;
       static const GLuint dstImageOffsets = 0;
       GLboolean success;
-      GLuint pitch = mt->pitch;
       GLubyte *dest;
       const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
 
       /* we'll do pixel transfer in a fragment shader */
       ctx->_ImageTransferState = 0x0;
 
+      surface = pipe->get_tex_surface(pipe, pt, 0, 0, 0);
+
       /* map texture region */
-      dest = pipe->region_map(pipe, mt->region);
+      (void) pipe->region_map(pipe, surface->region);
+      dest = surface->region->map + surface->offset;
 
       /* Put image into texture region.
        * Note that the image is actually going to be upside down in
@@ -542,7 +505,7 @@ make_mipmap_tree(struct st_context *st,
                                     mformat,          /* gl_texture_format */
                                     dest,             /* dest */
                                     0, 0, 0,          /* dstX/Y/Zoffset */
-                                    pitch * cpp,      /* dstRowStride, bytes */
+                                    surface->pitch * cpp, /* dstRowStride, bytes */
                                     &dstImageOffsets, /* dstImageOffsets */
                                     width, height, 1, /* size */
                                     format, type,     /* src format/type */
@@ -550,44 +513,15 @@ make_mipmap_tree(struct st_context *st,
                                     unpack);
 
       /* unmap */
-      pipe->region_unmap(pipe, mt->region);
+      pipe->region_unmap(pipe, surface->region);
+      pipe_surface_reference(&surface, NULL);
       assert(success);
 
       /* restore */
       ctx->_ImageTransferState = imageTransferStateSave;
    }
 
-#if 0
-   mt->target = PIPE_TEXTURE_2D;
-   mt->internal_format = GL_RGBA;
-   mt->format = pipeFormat;
-   mt->first_level = 0;
-   mt->last_level = 0;
-   mt->width0 = width;
-   mt->height0 = height;
-   mt->depth0 = 1;
-   mt->cpp = cpp;
-   mt->compressed = 0;
-   mt->pitch = mt->pitch;
-   mt->depth_pitch = 0;
-   mt->total_height = height;
-   mt->level[0].level_offset = 0;
-   mt->level[0].width = width;
-   mt->level[0].height = height;
-   mt->level[0].depth = 1;
-   mt->level[0].nr_images = 1;
-   mt->level[0].image_offset = NULL;
-   mt->refcount = 1;
-#endif
-   return mt;
-}
-
-
-static void
-free_mipmap_tree(struct pipe_context *pipe, struct pipe_mipmap_tree *mt)
-{
-   pipe->winsys->region_release(pipe->winsys, &mt->region);
-   free(mt);
+   return pt;
 }
 
 
@@ -693,7 +627,7 @@ static void
 draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
                    GLsizei width, GLsizei height,
                    GLfloat zoomX, GLfloat zoomY,
-                   struct pipe_mipmap_tree *mt,
+                   struct pipe_texture *pt,
                    struct st_vertex_program *stvp,
                    struct st_fragment_program *stfp,
                    const GLfloat *color,
@@ -761,9 +695,9 @@ draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
       pipe->set_viewport_state(pipe, &vp);
    }
 
-   /* mipmap tree state: */
+   /* texture state: */
    {
-      pipe->set_texture_state(pipe, unit, mt);
+      pipe->set_texture_state(pipe, unit, pt);
    }
 
    /* Compute window coords (y=0=bottom) with pixel zoom.
@@ -1025,14 +959,13 @@ st_DrawPixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
        any_pixel_transfer_ops(st) ||
        !compatible_formats(format, type, ps->format)) {
       /* textured quad */
-      struct pipe_mipmap_tree *mt
-         = make_mipmap_tree(ctx->st, width, height, format, type,
-                            unpack, pixels);
-      if (mt) {
+      struct pipe_texture *pt
+         = make_texture(ctx->st, width, height, format, type, unpack, pixels);
+      if (pt) {
          draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
                             width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
-                            mt, stvp, stfp, color, GL_FALSE);
-         free_mipmap_tree(st->pipe, mt);
+                            pt, stvp, stfp, color, GL_FALSE);
+	 st->pipe->texture_release(st->pipe, &pt);
       }
    }
    else {
@@ -1046,26 +979,29 @@ st_DrawPixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
 /**
  * Create a texture which represents a bitmap image.
  */
-static struct pipe_mipmap_tree *
+static struct pipe_texture *
 make_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height,
                     const struct gl_pixelstore_attrib *unpack,
                     const GLubyte *bitmap)
 {
    struct pipe_context *pipe = ctx->st->pipe;
-   const uint flags = PIPE_SURFACE_FLAG_TEXTURE;
+   struct pipe_surface *surface;
    uint format = 0, cpp, comp;
+   GLenum internal_format;
    ubyte *dest;
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
    int row, col;
 
    /* find a texture format we know */
    if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_I8 )) {
       format = PIPE_FORMAT_U_I8;
+      internal_format = GL_INTENSITY8;
       cpp = 1;
       comp = 0;
    }
    else if (pipe->is_format_supported( pipe, PIPE_FORMAT_U_A8_R8_G8_B8 )) {
       format = PIPE_FORMAT_U_A8_R8_G8_B8;
+      internal_format = GL_RGBA8;
       cpp = 4;
       comp = 3; /* alpha channel */ /*XXX little-endian dependency */
    }
@@ -1075,31 +1011,25 @@ make_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height,
    }
 
    /**
-    * Create a mipmap tree.
+    * Create a texture.
     */
-   mt = CALLOC_STRUCT(pipe_mipmap_tree);
-   if (!mt)
+   pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, format, internal_format,
+			  0, 0, width, height, 1, 0);
+   if (!pt)
       return NULL;
 
    if (unpack->BufferObj && unpack->BufferObj->Name) {
       /*
-      mt->region = buffer_object_region(unpack->BufferObj);
+      pt->region = buffer_object_region(unpack->BufferObj);
       */
       printf("st_Bitmap (sourcing from PBO not implemented yet)\n");
    }
 
-
-   /* allocate texture region/storage */
-   mt->pitch = pipe->winsys->surface_pitch(pipe->winsys, cpp, width, flags);
-   mt->region = pipe->winsys->region_alloc(pipe->winsys,
-					   mt->pitch * cpp * height, flags);
+   surface = pipe->get_tex_surface(pipe, pt, 0, 0, 0);
 
    /* map texture region */
-   dest = pipe->region_map(pipe, mt->region);
-   if (!dest) {
-      printf("st_Bitmap region_map() failed!?!");
-      return NULL;
-   }
+   (void) pipe->region_map(pipe, surface->region);
+   dest = surface->region->map + surface->offset;
 
    /* Put image into texture region.
     * Note that the image is actually going to be upside down in
@@ -1109,7 +1039,7 @@ make_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height,
    for (row = 0; row < height; row++) {
       const GLubyte *src = (const GLubyte *) _mesa_image_address2d(unpack,
                  bitmap, width, height, GL_COLOR_INDEX, GL_BITMAP, row, 0);
-      ubyte *destRow = dest + row * mt->pitch * cpp;
+      ubyte *destRow = dest + row * surface->pitch * cpp;
 
       if (unpack->LsbFirst) {
          /* Lsb first */
@@ -1158,30 +1088,13 @@ make_bitmap_texture(GLcontext *ctx, GLsizei width, GLsizei height,
 
    } /* row */
 
-   /* unmap */
-   pipe->region_unmap(pipe, mt->region);
-
-   mt->target = PIPE_TEXTURE_2D;
-   mt->internal_format = GL_RGBA;
-   mt->format = format;
-   mt->first_level = 0;
-   mt->last_level = 0;
-   mt->width0 = width;
-   mt->height0 = height;
-   mt->depth0 = 1;
-   mt->cpp = cpp;
-   mt->compressed = 0;
-   mt->depth_pitch = 0;
-   mt->total_height = height;
-   mt->level[0].level_offset = 0;
-   mt->level[0].width = width;
-   mt->level[0].height = height;
-   mt->level[0].depth = 1;
-   mt->level[0].nr_images = 1;
-   mt->level[0].image_offset = NULL;
-   mt->refcount = 1;
-
-   return mt;
+   /* Release surface */
+   pipe->region_unmap(pipe, surface->region);
+   pipe_surface_reference(&surface, NULL);
+
+   pt->format = format;
+
+   return pt;
 }
 
 
@@ -1193,21 +1106,21 @@ st_Bitmap(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
    struct st_fragment_program *stfp;
    struct st_vertex_program *stvp;
    struct st_context *st = ctx->st;
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
 
    stvp = make_vertex_shader(ctx->st, GL_TRUE);
    stfp = combined_bitmap_fragment_program(ctx);
 
    st_validate_state(st);
 
-   mt = make_bitmap_texture(ctx, width, height, unpack, bitmap);
-   if (mt) {
+   pt = make_bitmap_texture(ctx, width, height, unpack, bitmap);
+   if (pt) {
       draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
                          width, height, 1.0, 1.0,
-                         mt, stvp, stfp,
+                         pt, stvp, stfp,
                          ctx->Current.RasterColor, GL_FALSE);
 
-      free_mipmap_tree(st->pipe, mt);
+      st->pipe->texture_release(st->pipe, &pt);
    }
 }
 
@@ -1296,7 +1209,7 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
    struct st_fragment_program *stfp;
    struct pipe_surface *psRead;
    struct pipe_surface *psTex;
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
    GLfloat *color;
    uint format;
 
@@ -1327,11 +1240,12 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
    psRead = rbRead->surface;
    format = psRead->format;
 
-   mt = alloc_mipmap_tree(ctx->st, width, height, format);
-   if (!mt)
+   pt = st_texture_create(ctx->st, PIPE_TEXTURE_2D, format,
+			  rbRead->Base.InternalFormat, 0, 0, width, height, 1, 0);
+   if (!pt)
       return;
 
-   psTex = pipe->get_tex_surface(pipe, mt, 0, 0, 0);
+   psTex = pipe->get_tex_surface(pipe, pt, 0, 0, 0);
 
    if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
       srcy = ctx->DrawBuffer->Height - srcy - height;
@@ -1368,10 +1282,10 @@ st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
    /* draw textured quad */
    draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
                       width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
-                      mt, stvp, stfp, color, GL_TRUE);
+                      pt, stvp, stfp, color, GL_TRUE);
 
    pipe_surface_reference(&psTex, NULL);
-   free_mipmap_tree(st->pipe, mt);
+   st->pipe->texture_release(st->pipe, &pt);
 }
 
 
diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 80c92e8b7a..43681b7f8a 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -286,7 +286,7 @@ st_render_texture(GLcontext *ctx,
    struct st_renderbuffer *strb;
    struct gl_renderbuffer *rb;
    struct pipe_context *pipe = st->pipe;
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
 
    assert(!att->Renderbuffer);
 
@@ -302,26 +302,26 @@ st_render_texture(GLcontext *ctx,
    rb->AllocStorage = NULL; /* should not get called */
    strb = st_renderbuffer(rb);
 
-   /* get the mipmap tree for the texture */
-   mt = st_get_texobj_mipmap_tree(att->Texture);
-   assert(mt);
-   assert(mt->level[att->TextureLevel].width);
+   /* get the texture for the texture object */
+   pt = st_get_texobj_texture(att->Texture);
+   assert(pt);
+   assert(pt->width[att->TextureLevel]);
 
-   rb->Width = mt->level[att->TextureLevel].width;
-   rb->Height = mt->level[att->TextureLevel].height;
+   rb->Width = pt->width[att->TextureLevel];
+   rb->Height = pt->height[att->TextureLevel];
 
-   /* the renderbuffer's surface is inside the mipmap_tree: */
-   strb->surface = pipe->get_tex_surface(pipe, mt,
+   /* the renderbuffer's surface is inside the texture */
+   strb->surface = pipe->get_tex_surface(pipe, pt,
                                          att->CubeMapFace,
                                          att->TextureLevel,
                                          att->Zoffset);
    assert(strb->surface);
 
-   init_renderbuffer_bits(strb, mt->format);
+   init_renderbuffer_bits(strb, pt->format);
 
    /*
-   printf("RENDER TO TEXTURE obj=%p mt=%p surf=%p  %d x %d\n",
-          att->Texture, mt, strb->surface, rb->Width, rb->Height);
+   printf("RENDER TO TEXTURE obj=%p pt=%p surf=%p  %d x %d\n",
+          att->Texture, pt, strb->surface, rb->Width, rb->Height);
    */
 
    /* Invalidate buffer state so that the pipe's framebuffer state
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 461705119f..f45d7e4275 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -40,7 +40,7 @@
 #include "state_tracker/st_cb_fbo.h"
 #include "state_tracker/st_cb_texture.h"
 #include "state_tracker/st_format.h"
-#include "state_tracker/st_mipmap_tree.h"
+#include "state_tracker/st_texture.h"
 
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
@@ -54,8 +54,7 @@ struct st_texture_object
 {
    struct gl_texture_object base;       /* The "parent" object */
 
-   /* The mipmap tree must include at least these levels once
-    * validated:
+   /* The texture must include at least these levels once validated:
     */
    GLuint firstLevel;
    GLuint lastLevel;
@@ -67,7 +66,7 @@ struct st_texture_object
    /* On validation any active images held in main memory or in other
     * regions will be copied to this region and the old storage freed.
     */
-   struct pipe_mipmap_tree *mt;
+   struct pipe_texture *pt;
 
    GLboolean imageOverride;
    GLint depthOverride;
@@ -76,24 +75,6 @@ struct st_texture_object
 
 
 
-struct st_texture_image
-{
-   struct gl_texture_image base;
-
-   /* These aren't stored in gl_texture_image 
-    */
-   GLuint level;
-   GLuint face;
-
-   /* If stImage->mt != NULL, image data is stored here.
-    * Else if stImage->base.Data != NULL, image is stored there.
-    * Else there is no image data.
-    */
-   struct pipe_mipmap_tree *mt;
-};
-
-
-
 
 static INLINE struct st_texture_object *
 st_texture_object(struct gl_texture_object *obj)
@@ -108,11 +89,11 @@ st_texture_image(struct gl_texture_image *img)
 }
 
 
-struct pipe_mipmap_tree *
-st_get_texobj_mipmap_tree(struct gl_texture_object *texObj)
+struct pipe_texture *
+st_get_texobj_texture(struct gl_texture_object *texObj)
 {
    struct st_texture_object *stObj = st_texture_object(texObj);
-   return stObj->mt;
+   return stObj->pt;
 }
 
 
@@ -174,9 +155,9 @@ st_IsTextureResident(GLcontext * ctx, struct gl_texture_object *texObj)
    struct st_texture_object *stObj = st_texture_object(texObj);
 
    return
-      stObj->mt &&
-      stObj->mt->region &&
-      intel_is_region_resident(intel, stObj->mt->region);
+      stObj->pt &&
+      stObj->pt->region &&
+      intel_is_region_resident(intel, stObj->pt->region);
 #endif
    return 1;
 }
@@ -207,11 +188,10 @@ static void
 st_DeleteTextureObject(GLcontext *ctx,
 			 struct gl_texture_object *texObj)
 {
-   struct pipe_context *pipe = ctx->st->pipe;
    struct st_texture_object *stObj = st_texture_object(texObj);
 
-   if (stObj->mt)
-      st_miptree_release(pipe, &stObj->mt);
+   if (stObj->pt)
+      ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt);
 
    _mesa_delete_texture_object(ctx, texObj);
 }
@@ -220,13 +200,12 @@ st_DeleteTextureObject(GLcontext *ctx,
 static void
 st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage)
 {
-   struct pipe_context *pipe = ctx->st->pipe;
    struct st_texture_image *stImage = st_texture_image(texImage);
 
    DBG("%s\n", __FUNCTION__);
 
-   if (stImage->mt) {
-      st_miptree_release(pipe, &stImage->mt);
+   if (stImage->pt) {
+      ctx->st->pipe->texture_release(ctx->st->pipe, &stImage->pt);
    }
 
    if (texImage->Data) {
@@ -287,10 +266,10 @@ do_memcpy(void *dest, const void *src, size_t n)
 }
 
 
-/* Functions to store texture images.  Where possible, mipmap_tree's
+/* Functions to store texture images.  Where possible, textures
  * will be created or further instantiated with image data, otherwise
  * images will be stored in malloc'd memory.  A validation step is
- * required to pull those images into a mipmap tree, or otherwise
+ * required to pull those images into a texture, or otherwise
  * decide a fallback is required.
  */
 
@@ -313,17 +292,16 @@ logbase2(int n)
 /* Otherwise, store it in memory if (Border != 0) or (any dimension ==
  * 1).
  *    
- * Otherwise, if max_level >= level >= min_level, create tree with
- * space for textures from min_level down to max_level.
+ * Otherwise, if max_level >= level >= min_level, create texture with
+ * space for images from min_level down to max_level.
  *
- * Otherwise, create tree with space for textures from (level
- * 0)..(1x1).  Consider pruning this tree at a validation if the
- * saving is worth it.
+ * Otherwise, create texture with space for images from (level 0)..(1x1).
+ * Consider pruning this texture at a validation if the saving is worth it.
  */
 static void
-guess_and_alloc_mipmap_tree(struct pipe_context *pipe,
-                            struct st_texture_object *stObj,
-                            struct st_texture_image *stImage)
+guess_and_alloc_texture(struct st_context *st,
+			struct st_texture_object *stObj,
+			struct st_texture_image *stImage)
 {
    GLuint firstLevel;
    GLuint lastLevel;
@@ -382,23 +360,20 @@ guess_and_alloc_mipmap_tree(struct pipe_context *pipe,
       lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
    }
 
-   assert(!stObj->mt);
+   assert(!stObj->pt);
    if (stImage->base.IsCompressed)
       comp_byte = compressed_num_bytes(stImage->base.TexFormat->MesaFormat);
-   stObj->mt = st_miptree_create(pipe,
+   stObj->pt = st_texture_create(st,
                                  gl_target_to_pipe(stObj->base.Target),
-                                 stImage->base.InternalFormat,
+                                 st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat),
+				 stImage->base.InternalFormat,
                                  firstLevel,
                                  lastLevel,
                                  width,
                                  height,
                                  depth,
-                                 stImage->base.TexFormat->TexelBytes,
                                  comp_byte);
 
-   stObj->mt->format
-      = st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat);
-
    DBG("%s - success\n", __FUNCTION__);
 }
 
@@ -482,11 +457,11 @@ try_pbo_upload(GLcontext *ctx,
    else
       src_stride = width;
 
-   dst_offset = st_miptree_image_offset(stImage->mt,
+   dst_offset = st_texture_image_offset(stImage->pt,
                                            stImage->face,
                                            stImage->level);
 
-   dst_stride = stImage->mt->pitch;
+   dst_stride = stImage->pt->pitch;
 
    {
       struct _DriBufferObject *src_buffer =
@@ -495,11 +470,11 @@ try_pbo_upload(GLcontext *ctx,
       /* Temporary hack: cast to _DriBufferObject:
        */
       struct _DriBufferObject *dst_buffer =
-         (struct _DriBufferObject *)stImage->mt->region->buffer;
+         (struct _DriBufferObject *)stImage->pt->region->buffer;
 
 
       intelEmitCopyBlit(intel,
-                        stImage->mt->cpp,
+                        stImage->pt->cpp,
                         src_stride, src_buffer, src_offset,
                         dst_stride, dst_buffer, dst_offset,
                         0, 0, 0, 0, width, height,
@@ -540,7 +515,6 @@ st_TexImage(GLcontext * ctx,
               struct gl_texture_object *texObj,
               struct gl_texture_image *texImage, GLsizei imageSize, int compressed)
 {
-   struct pipe_context *pipe = ctx->st->pipe;
    struct st_texture_object *stObj = st_texture_object(texObj);
    struct st_texture_image *stImage = st_texture_image(texImage);
    GLint postConvWidth = width;
@@ -589,58 +563,58 @@ st_TexImage(GLcontext * ctx,
    /* Release the reference to a potentially orphaned buffer.   
     * Release any old malloced memory.
     */
-   if (stImage->mt) {
-      st_miptree_release(pipe, &stImage->mt);
+   if (stImage->pt) {
+      ctx->st->pipe->texture_release(ctx->st->pipe, &stImage->pt);
       assert(!texImage->Data);
    }
    else if (texImage->Data) {
       _mesa_align_free(texImage->Data);
    }
 
-   /* If this is the only texture image in the tree, could call
+   /* If this is the only texture image in the texture, could call
     * bmBufferData with NULL data to free the old block and avoid
     * waiting on any outstanding fences.
     */
-   if (stObj->mt &&
-       stObj->mt->first_level == level &&
-       stObj->mt->last_level == level &&
-       stObj->mt->target != PIPE_TEXTURE_CUBE &&
-       !st_miptree_match_image(stObj->mt, &stImage->base,
+   if (stObj->pt &&
+       stObj->pt->first_level == level &&
+       stObj->pt->last_level == level &&
+       stObj->pt->target != PIPE_TEXTURE_CUBE &&
+       !st_texture_match_image(stObj->pt, &stImage->base,
                                   stImage->face, stImage->level)) {
 
       DBG("release it\n");
-      st_miptree_release(pipe, &stObj->mt);
-      assert(!stObj->mt);
+      ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt);
+      assert(!stObj->pt);
    }
 
-   if (!stObj->mt) {
-      guess_and_alloc_mipmap_tree(pipe, stObj, stImage);
-      if (!stObj->mt) {
-	 DBG("guess_and_alloc_mipmap_tree: failed\n");
+   if (!stObj->pt) {
+      guess_and_alloc_texture(ctx->st, stObj, stImage);
+      if (!stObj->pt) {
+	 DBG("guess_and_alloc_texture: failed\n");
       }
    }
 
-   assert(!stImage->mt);
+   assert(!stImage->pt);
 
-   if (stObj->mt &&
-       st_miptree_match_image(stObj->mt, &stImage->base,
+   if (stObj->pt &&
+       st_texture_match_image(stObj->pt, &stImage->base,
                                  stImage->face, stImage->level)) {
 
-      st_miptree_reference(&stImage->mt, stObj->mt);
-      assert(stImage->mt);
+      pipe_texture_reference(ctx->st->pipe, &stImage->pt, stObj->pt);
+      assert(stImage->pt);
    }
 
-   if (!stImage->mt)
-      DBG("XXX: Image did not fit into tree - storing in local memory!\n");
+   if (!stImage->pt)
+      DBG("XXX: Image did not fit into texture - storing in local memory!\n");
 
 #if 0 /* XXX FIX when st_buffer_objects are in place */
    /* PBO fastpaths:
     */
    if (dims <= 2 &&
-       stImage->mt &&
+       stImage->pt &&
        intel_buffer_object(unpack->BufferObj) &&
        check_pbo_format(internalFormat, format,
-                        type, stImage->base.TexFormat)) {
+                        type, texImage->TexFormat)) {
 
       DBG("trying pbo upload\n");
 
@@ -650,9 +624,9 @@ st_TexImage(GLcontext * ctx,
        * performance (in particular when pipe_region_cow() is
        * required).
        */
-      if (stObj->mt == stImage->mt &&
-          stObj->mt->first_level == level &&
-          stObj->mt->last_level == level) {
+      if (stObj->pt == stImage->pt &&
+          stObj->pt->first_level == level &&
+          stObj->pt->last_level == level) {
 
          if (try_pbo_zcopy(intel, stImage, unpack,
                            internalFormat,
@@ -683,7 +657,7 @@ st_TexImage(GLcontext * ctx,
 
 
    /* intelCopyTexImage calls this function with pixels == NULL, with
-    * the expectation that the mipmap tree will be set up but nothing
+    * the expectation that the texture will be set up but nothing
     * more will be done.  This is where those calls return:
     */
    if (compressed) {
@@ -698,13 +672,9 @@ st_TexImage(GLcontext * ctx,
    if (!pixels)
       return;
 
-   if (stImage->mt) {
-      texImage->Data = st_miptree_image_map(pipe,
-                                               stImage->mt,
-                                               stImage->face,
-                                               stImage->level,
-                                               &dstRowStride,
-                                               stImage->base.ImageOffsets);
+   if (stImage->pt) {
+      texImage->Data = st_texture_image_map(ctx->st, stImage, 0);
+      dstRowStride = stImage->surface->pitch * stImage->surface->cpp;
    }
    else {
       /* Allocate regular memory and store the image there temporarily.   */
@@ -732,22 +702,36 @@ st_TexImage(GLcontext * ctx,
    if (compressed) {
      memcpy(texImage->Data, pixels, imageSize);
    }
-   else if (!texImage->TexFormat->StoreImage(ctx, dims, 
-                                             texImage->_BaseFormat, 
-                                             texImage->TexFormat, 
-                                             texImage->Data,
-                                             0, 0, 0, /* dstX/Y/Zoffset */
-                                             dstRowStride,
-                                             texImage->ImageOffsets,
-                                             width, height, depth,
-                                             format, type, pixels, unpack)) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+   else {
+      GLuint srcImageStride = _mesa_image_image_stride(unpack, width, height,
+						       format, type);
+      int i;
+
+      for (i = 0; i++ < depth;) {
+	 if (!texImage->TexFormat->StoreImage(ctx, dims, 
+					      texImage->_BaseFormat, 
+					      texImage->TexFormat, 
+					      texImage->Data,
+					      0, 0, 0, /* dstX/Y/Zoffset */
+					      dstRowStride,
+					      texImage->ImageOffsets,
+					      width, height, 1,
+					      format, type, pixels, unpack)) {
+	    _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
+	 }
+
+	 if (stImage->pt && i < depth) {
+	    st_texture_image_unmap(ctx->st, stImage);
+	    texImage->Data = st_texture_image_map(ctx->st, stImage, i);
+	    pixels += srcImageStride;
+	 }
+      }
    }
 
    _mesa_unmap_teximage_pbo(ctx, unpack);
 
-   if (stImage->mt) {
-      st_miptree_image_unmap(pipe, stImage->mt);
+   if (stImage->pt) {
+      st_texture_image_unmap(ctx->st, stImage);
       texImage->Data = NULL;
    }
 
@@ -839,49 +823,58 @@ st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
    /*
    struct intel_context *intel = intel_context(ctx);
    */
-   struct pipe_context *pipe = ctx->st->pipe;
    struct st_texture_image *stImage = st_texture_image(texImage);
+   GLuint dstImageStride = _mesa_image_image_stride(&ctx->Pack, texImage->Width,
+						    texImage->Height, format,
+						    type);
+   GLuint depth;
+   int i;
 
    /* Map */
-   if (stImage->mt) {
+   if (stImage->pt) {
       /* Image is stored in hardware format in a buffer managed by the
        * kernel.  Need to explicitly map and unmap it.
        */
-      stImage->base.Data =
-         st_miptree_image_map(pipe,
-                                 stImage->mt,
-                                 stImage->face,
-                                 stImage->level,
-                                 &stImage->base.RowStride,
-                                 stImage->base.ImageOffsets);
-      stImage->base.RowStride /= stImage->mt->cpp;
+      texImage->Data = st_texture_image_map(ctx->st, stImage, 0);
+      texImage->RowStride = stImage->surface->pitch;
    }
    else {
       /* Otherwise, the image should actually be stored in
-       * stImage->base.Data.  This is pretty confusing for
+       * texImage->Data.  This is pretty confusing for
        * everybody, I'd much prefer to separate the two functions of
        * texImage->Data - storage for texture images in main memory
        * and access (ie mappings) of images.  In other words, we'd
        * create a new texImage->Map field and leave Data simply for
        * storage.
        */
-      assert(stImage->base.Data);
+      assert(texImage->Data);
    }
 
+   depth = texImage->Depth;
+   texImage->Depth = 1;
 
-   if (compressed) {
-      _mesa_get_compressed_teximage(ctx, target, level, pixels,
-				    texObj, texImage);
-   } else {
-      _mesa_get_teximage(ctx, target, level, format, type, pixels,
-			 texObj, texImage);
+   for (i = 0; i++ < depth;) {
+      if (compressed) {
+	 _mesa_get_compressed_teximage(ctx, target, level, pixels,
+				       texObj, texImage);
+      } else {
+	 _mesa_get_teximage(ctx, target, level, format, type, pixels,
+			    texObj, texImage);
+      }
+
+      if (stImage->pt && i < depth) {
+	 st_texture_image_unmap(ctx->st, stImage);
+	 texImage->Data = st_texture_image_map(ctx->st, stImage, i);
+	 pixels += dstImageStride;
+      }
    }
-     
+
+   texImage->Depth = depth;
 
    /* Unmap */
-   if (stImage->mt) {
-      st_miptree_image_unmap(pipe, stImage->mt);
-      stImage->base.Data = NULL;
+   if (stImage->pt) {
+      st_texture_image_unmap(ctx->st, stImage);
+      texImage->Data = NULL;
    }
 }
 
@@ -921,9 +914,11 @@ st_TexSubimage(GLcontext * ctx,
                  struct gl_texture_object *texObj,
                  struct gl_texture_image *texImage)
 {
-   struct pipe_context *pipe = ctx->st->pipe;
    struct st_texture_image *stImage = st_texture_image(texImage);
    GLuint dstRowStride;
+   GLuint srcImageStride = _mesa_image_image_stride(packing, width, height,
+						    format, type);
+   int i;
 
    DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
        _mesa_lookup_enum_by_nr(target),
@@ -938,25 +933,28 @@ st_TexSubimage(GLcontext * ctx,
    /* Map buffer if necessary.  Need to lock to prevent other contexts
     * from uploading the buffer under us.
     */
-   if (stImage->mt) 
-      texImage->Data = st_miptree_image_map(pipe,
-                                               stImage->mt,
-                                               stImage->face,
-                                               stImage->level,
-                                               &dstRowStride,
-                                               texImage->ImageOffsets);
-
-   assert(dstRowStride);
-
-   if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat,
-                                        texImage->TexFormat,
-                                        texImage->Data,
-                                        xoffset, yoffset, zoffset,
-                                        dstRowStride,
-                                        texImage->ImageOffsets,
-                                        width, height, depth,
-                                        format, type, pixels, packing)) {
-      _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
+   if (stImage->pt) {
+      texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset);
+      dstRowStride = stImage->surface->pitch * stImage->surface->cpp;
+   }
+
+   for (i = 0; i++ < depth;) {
+      if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat,
+					   texImage->TexFormat,
+					   texImage->Data,
+					   xoffset, yoffset, 0,
+					   dstRowStride,
+					   texImage->ImageOffsets,
+					   width, height, 1,
+					   format, type, pixels, packing)) {
+	 _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
+      }
+
+      if (stImage->pt && i < depth) {
+	 st_texture_image_unmap(ctx->st, stImage);
+	 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset + i);
+	 pixels += srcImageStride;
+      }
    }
 
 #if 0
@@ -970,8 +968,8 @@ st_TexSubimage(GLcontext * ctx,
 
    _mesa_unmap_teximage_pbo(ctx, packing);
 
-   if (stImage->mt) {
-      st_miptree_image_unmap(pipe, stImage->mt);
+   if (stImage->pt) {
+      st_texture_image_unmap(ctx->st, stImage);
       texImage->Data = NULL;
    }
 }
@@ -1074,7 +1072,7 @@ fallback_copy_texsubimage(GLcontext *ctx,
 {
    struct pipe_context *pipe = ctx->st->pipe;
    const uint face = texture_face(target);
-   struct pipe_mipmap_tree *mt = stImage->mt;
+   struct pipe_texture *pt = stImage->pt;
    struct pipe_surface *src_surf, *dest_surf;
    GLfloat *data;
    GLint row, yStep;
@@ -1090,7 +1088,7 @@ fallback_copy_texsubimage(GLcontext *ctx,
 
    src_surf = strb->surface;
 
-   dest_surf = pipe->get_tex_surface(pipe, mt,
+   dest_surf = pipe->get_tex_surface(pipe, pt,
                                     face, level, destZ);
 
    (void) pipe->region_map(pipe, dest_surf->region);
@@ -1150,7 +1148,7 @@ do_copy_texsubimage(GLcontext *ctx,
    struct gl_framebuffer *fb = ctx->ReadBuffer;
    struct st_renderbuffer *strb;
    struct pipe_context *pipe = ctx->st->pipe;
-   struct pipe_region *src_region, *dest_region;
+   struct pipe_surface *dest_surface;
    uint dest_format, src_format;
 
    (void) texImage;
@@ -1169,29 +1167,24 @@ do_copy_texsubimage(GLcontext *ctx,
 
    assert(strb);
    assert(strb->surface);
-   assert(stImage->mt);
+   assert(stImage->pt);
 
    if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
       srcY = strb->Base.Height - srcY - height;
    }
 
    src_format = strb->surface->format;
-   dest_format = stImage->mt->format;
+   dest_format = stImage->pt->format;
 
-   src_region = strb->surface->region;
-   dest_region = stImage->mt->region;
+   dest_surface = pipe->get_tex_surface(pipe, stImage->pt, stImage->face,
+					stImage->level, destZ);
 
    if (src_format == dest_format &&
        ctx->_ImageTransferState == 0x0 &&
-       src_region &&
-       dest_region &&
-       strb->surface->cpp == stImage->mt->cpp) {
+       strb->surface->region &&
+       dest_surface->region &&
+       strb->surface->cpp == stImage->pt->cpp) {
       /* do blit-style copy */
-      struct pipe_surface *dest_surface = pipe->get_tex_surface(pipe,
-								stImage->mt,
-								stImage->face,
-								stImage->level,
-								destZ);
 
       /* XXX may need to invert image depending on window
        * vs. user-created FBO
@@ -1203,12 +1196,12 @@ do_copy_texsubimage(GLcontext *ctx,
        * worth it:
        */
       intelEmitCopyBlit(intel,
-                        stImage->mt->cpp,
+                        stImage->pt->cpp,
                         -src->pitch,
                         src->buffer,
                         src->height * src->pitch * src->cpp,
-                        stImage->mt->pitch,
-                        stImage->mt->region->buffer,
+                        stImage->pt->pitch,
+                        stImage->pt->region->buffer,
                         dest_offset,
                         x, y + height, dstx, dsty, width, height,
                         GL_COPY); /* ? */
@@ -1224,8 +1217,6 @@ do_copy_texsubimage(GLcontext *ctx,
 			 /* size */
 			 width, height);
 #endif
-
-      pipe_surface_reference(&dest_surface, NULL);
    }
    else {
       fallback_copy_texsubimage(ctx, target, level,
@@ -1234,6 +1225,7 @@ do_copy_texsubimage(GLcontext *ctx,
                                 srcX, srcY, width, height);
    }
 
+   pipe_surface_reference(&dest_surface, NULL);
 
 #if 0
    /* GL_SGIS_generate_mipmap -- this can be accelerated now.
@@ -1267,7 +1259,7 @@ st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
       goto fail;
 #endif
 
-   /* Setup or redefine the texture object, mipmap tree and texture
+   /* Setup or redefine the texture object, texture and texture
     * image.  Don't populate yet.  
     */
    ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
@@ -1299,7 +1291,7 @@ st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
       goto fail;
 #endif
 
-   /* Setup or redefine the texture object, mipmap tree and texture
+   /* Setup or redefine the texture object, texture and texture
     * image.  Don't populate yet.  
     */
    ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
@@ -1407,28 +1399,28 @@ calculate_first_last_level(struct st_texture_object *stObj)
 
 
 static void
-copy_image_data_to_tree(struct pipe_context *pipe,
-                        struct st_texture_object *stObj,
-                        struct st_texture_image *stImage)
+copy_image_data_to_texture(struct st_context *st,
+			   struct st_texture_object *stObj,
+			   struct st_texture_image *stImage)
 {
-   if (stImage->mt) {
+   if (stImage->pt) {
       /* Copy potentially with the blitter:
        */
-      st_miptree_image_copy(pipe,
-                            stObj->mt,  /* dest miptree */
+      st_texture_image_copy(st->pipe,
+                            stObj->pt,  /* dest texture */
                             stImage->face, stImage->level,
-                            stImage->mt /* src miptree */
+                            stImage->pt /* src texture */
                             );
 
-      st_miptree_release(pipe, &stImage->mt);
+      st->pipe->texture_release(st->pipe, &stImage->pt);
    }
    else {
       assert(stImage->base.Data != NULL);
 
       /* More straightforward upload.  
        */
-      st_miptree_image_data(pipe,
-                               stObj->mt,
+      st_texture_image_data(st->pipe,
+                               stObj->pt,
                                stImage->face,
                                stImage->level,
                                stImage->base.Data,
@@ -1439,16 +1431,16 @@ copy_image_data_to_tree(struct pipe_context *pipe,
       stImage->base.Data = NULL;
    }
 
-   st_miptree_reference(&stImage->mt, stObj->mt);
+   pipe_texture_reference(st->pipe, &stImage->pt, stObj->pt);
 }
 
 
 /*  
  */
 GLboolean
-st_finalize_mipmap_tree(GLcontext *ctx,
-                        struct pipe_context *pipe, GLuint unit,
-                        GLboolean *needFlush)
+st_finalize_texture(GLcontext *ctx,
+		    struct pipe_context *pipe, GLuint unit,
+		    GLboolean *needFlush)
 {
    struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
    struct st_texture_object *stObj = st_texture_object(tObj);
@@ -1465,7 +1457,7 @@ st_finalize_mipmap_tree(GLcontext *ctx,
     */
    assert(stObj->base._Complete);
 
-   /* What levels must the tree include at a minimum?
+   /* What levels must the texture include at a minimum?
     */
    calculate_first_last_level(stObj);
    firstImage =
@@ -1474,27 +1466,27 @@ st_finalize_mipmap_tree(GLcontext *ctx,
    /* Fallback case:
     */
    if (firstImage->base.Border) {
-      if (stObj->mt) {
-         st_miptree_release(pipe, &stObj->mt);
+      if (stObj->pt) {
+         ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt);
       }
       return GL_FALSE;
    }
 
 
-   /* If both firstImage and stObj have a tree which can contain
+   /* If both firstImage and stObj point to a texture which can contain
     * all active images, favour firstImage.  Note that because of the
     * completeness requirement, we know that the image dimensions
     * will match.
     */
-   if (firstImage->mt &&
-       firstImage->mt != stObj->mt &&
-       firstImage->mt->first_level <= stObj->firstLevel &&
-       firstImage->mt->last_level >= stObj->lastLevel) {
+   if (firstImage->pt &&
+       firstImage->pt != stObj->pt &&
+       firstImage->pt->first_level <= stObj->firstLevel &&
+       firstImage->pt->last_level >= stObj->lastLevel) {
 
-      if (stObj->mt)
-         st_miptree_release(pipe, &stObj->mt);
+      if (stObj->pt)
+         ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt);
 
-      st_miptree_reference(&stObj->mt, firstImage->mt);
+      pipe_texture_reference(ctx->st->pipe, &stObj->pt, firstImage->pt);
    }
 
    if (firstImage->base.IsCompressed) {
@@ -1505,48 +1497,45 @@ st_finalize_mipmap_tree(GLcontext *ctx,
       cpp = firstImage->base.TexFormat->TexelBytes;
    }
 
-   /* Check tree can hold all active levels.  Check tree matches
+   /* Check texture can hold all active levels.  Check texture matches
     * target, imageFormat, etc.
     * 
     * XXX: For some layouts (eg i945?), the test might have to be
-    * first_level == firstLevel, as the tree isn't valid except at the
+    * first_level == firstLevel, as the texture isn't valid except at the
     * original start level.  Hope to get around this by
     * programming minLod, maxLod, baseLevel into the hardware and
-    * leaving the tree alone.
+    * leaving the texture alone.
     */
-   if (stObj->mt &&
-       (stObj->mt->target != gl_target_to_pipe(stObj->base.Target) ||
-	stObj->mt->internal_format != firstImage->base.InternalFormat ||
-	stObj->mt->first_level != stObj->firstLevel ||
-	stObj->mt->last_level != stObj->lastLevel ||
-	stObj->mt->width0 != firstImage->base.Width ||
-	stObj->mt->height0 != firstImage->base.Height ||
-	stObj->mt->depth0 != firstImage->base.Depth ||
-	stObj->mt->cpp != cpp ||
-	stObj->mt->compressed != firstImage->base.IsCompressed)) {
-      st_miptree_release(pipe, &stObj->mt);
+   if (stObj->pt &&
+       (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
+	stObj->pt->internal_format != firstImage->base.InternalFormat ||
+	stObj->pt->first_level != stObj->firstLevel ||
+	stObj->pt->last_level != stObj->lastLevel ||
+	stObj->pt->width[0] != firstImage->base.Width ||
+	stObj->pt->height[0] != firstImage->base.Height ||
+	stObj->pt->depth[0] != firstImage->base.Depth ||
+	stObj->pt->cpp != cpp ||
+	stObj->pt->compressed != firstImage->base.IsCompressed)) {
+      ctx->st->pipe->texture_release(ctx->st->pipe, &stObj->pt);
    }
 
 
-   /* May need to create a new tree:
+   /* May need to create a new texture:
     */
-   if (!stObj->mt) {
-      stObj->mt = st_miptree_create(pipe,
+   if (!stObj->pt) {
+      stObj->pt = st_texture_create(ctx->st,
                                     gl_target_to_pipe(stObj->base.Target),
-                                    firstImage->base.InternalFormat,
+                                    st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat),
+				    firstImage->base.InternalFormat,
                                     stObj->firstLevel,
                                     stObj->lastLevel,
                                     firstImage->base.Width,
                                     firstImage->base.Height,
                                     firstImage->base.Depth,
-                                    cpp,
                                     comp_byte);
-
-      stObj->mt->format
-         = st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat);
    }
 
-   /* Pull in any images not in the object's tree:
+   /* Pull in any images not in the object's texture:
     */
    nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
    for (face = 0; face < nr_faces; face++) {
@@ -1554,10 +1543,10 @@ st_finalize_mipmap_tree(GLcontext *ctx,
          struct st_texture_image *stImage =
             st_texture_image(stObj->base.Image[face][i]);
 
-         /* Need to import images in main memory or held in other trees.
+         /* Need to import images in main memory or held in other textures.
           */
-         if (stObj->mt != stImage->mt) {
-            copy_image_data_to_tree(pipe, stObj, stImage);
+         if (stObj->pt != stImage->pt) {
+            copy_image_data_to_texture(ctx->st, stObj, stImage);
 	    *needFlush = GL_TRUE;
          }
       }
diff --git a/src/mesa/state_tracker/st_cb_texture.h b/src/mesa/state_tracker/st_cb_texture.h
index 7a1867dc58..7f8082b029 100644
--- a/src/mesa/state_tracker/st_cb_texture.h
+++ b/src/mesa/state_tracker/st_cb_texture.h
@@ -2,14 +2,14 @@
 #define ST_CB_TEXTURE_H
 
 
-extern struct pipe_mipmap_tree *
-st_get_texobj_mipmap_tree(struct gl_texture_object *texObj);
+extern struct pipe_texture *
+st_get_texobj_texture(struct gl_texture_object *texObj);
 
 
 extern GLboolean
-st_finalize_mipmap_tree(GLcontext *ctx,
-                        struct pipe_context *pipe, GLuint unit,
-                        GLboolean *needFlush);
+st_finalize_texture(GLcontext *ctx,
+		    struct pipe_context *pipe, GLuint unit,
+		    GLboolean *needFlush);
 
 
 extern void
diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h
index a6045230a0..db97014c5a 100644
--- a/src/mesa/state_tracker/st_context.h
+++ b/src/mesa/state_tracker/st_context.h
@@ -36,7 +36,6 @@
 struct st_context;
 struct st_region;
 struct st_texture_object;
-struct st_texture_image;
 struct st_fragment_program;
 struct draw_context;
 struct draw_stage;
@@ -61,6 +60,25 @@ struct st_tracked_state {
 
 
 
+struct st_texture_image
+{
+   struct gl_texture_image base;
+
+   /* These aren't stored in gl_texture_image 
+    */
+   GLuint level;
+   GLuint face;
+
+   /* If stImage->pt != NULL, image data is stored here.
+    * Else if stImage->base.Data != NULL, image is stored there.
+    * Else there is no image data.
+    */
+   struct pipe_texture *pt;
+
+   struct pipe_surface *surface;
+};
+
+
 
 struct st_context
 {
@@ -91,7 +109,7 @@ struct st_context
       struct pipe_constant_buffer constants[2];
       struct pipe_feedback_state feedback;
       struct pipe_framebuffer_state framebuffer;
-      struct pipe_mipmap_tree *texture[PIPE_MAX_SAMPLERS];
+      struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
       struct pipe_poly_stipple poly_stipple;
       struct pipe_scissor_state scissor;
       struct pipe_viewport_state viewport;
diff --git a/src/mesa/state_tracker/st_mipmap_tree.c b/src/mesa/state_tracker/st_texture.c
index 6ccf33105f..a5582c31c0 100644
--- a/src/mesa/state_tracker/st_mipmap_tree.c
+++ b/src/mesa/state_tracker/st_texture.c
@@ -25,7 +25,9 @@
  * 
  **************************************************************************/
 
-#include "st_mipmap_tree.h"
+#include "st_context.h"
+#include "st_format.h"
+#include "st_texture.h"
 #include "enums.h"
 
 #include "pipe/p_state.h"
@@ -56,19 +58,19 @@ target_to_target(GLenum target)
 }
 #endif
 
-struct pipe_mipmap_tree *
-st_miptree_create(struct pipe_context *pipe,
+struct pipe_texture *
+st_texture_create(struct st_context *st,
                   unsigned target,
-                     GLenum internal_format,
-                     GLuint first_level,
-                     GLuint last_level,
-                     GLuint width0,
-                     GLuint height0,
-                     GLuint depth0, GLuint cpp, GLuint compress_byte)
+		  unsigned format,
+		  GLenum internal_format,
+		  GLuint first_level,
+		  GLuint last_level,
+		  GLuint width0,
+		  GLuint height0,
+		  GLuint depth0,
+		  GLuint compress_byte)
 {
-   GLboolean ok;
-   struct pipe_mipmap_tree *mt = calloc(sizeof(*mt), 1);
-   GLbitfield flags = 0x0;
+   struct pipe_texture *pt = CALLOC_STRUCT(pipe_texture);
 
    assert(target <= PIPE_TEXTURE_CUBE);
 
@@ -76,102 +78,64 @@ st_miptree_create(struct pipe_context *pipe,
        _mesa_lookup_enum_by_nr(target),
        _mesa_lookup_enum_by_nr(internal_format), first_level, last_level);
 
-   mt->target = target;
-   mt->internal_format = internal_format;
-   mt->first_level = first_level;
-   mt->last_level = last_level;
-   mt->width0 = width0;
-   mt->height0 = height0;
-   mt->depth0 = depth0;
-   mt->cpp = compress_byte ? compress_byte : cpp;
-   mt->compressed = compress_byte ? 1 : 0;
-   mt->refcount = 1; 
-
-   ok = pipe->mipmap_tree_layout(pipe, mt);
-   if (ok) {
-      mt->region = pipe->winsys->region_alloc(pipe->winsys,
-					      mt->pitch * mt->cpp *
-					      mt->total_height, flags);
-   }
-
-   if (!mt->region) {
-      free(mt);
+   if (!pt)
       return NULL;
-   }
-
-   return mt;
-}
-
-
-void
-st_miptree_reference(struct pipe_mipmap_tree **dst,
-                        struct pipe_mipmap_tree *src)
-{
-   src->refcount++;
-   *dst = src;
-   DBG("%s %p refcount now %d\n", __FUNCTION__, (void *) src, src->refcount);
-}
-
-void
-st_miptree_release(struct pipe_context *pipe,
-                   struct pipe_mipmap_tree **mt)
-{
-   if (!*mt)
-      return;
 
-   DBG("%s %p refcount will be %d\n",
-       __FUNCTION__, (void *) *mt, (*mt)->refcount - 1);
-   if (--(*mt)->refcount <= 0) {
-      GLuint i;
+   assert(format);
 
-      DBG("%s deleting %p\n", __FUNCTION__, (void *) *mt);
+   pt->target = target;
+   pt->format = format;
+   pt->internal_format = internal_format;
+   pt->first_level = first_level;
+   pt->last_level = last_level;
+   pt->width[0] = width0;
+   pt->height[0] = height0;
+   pt->depth[0] = depth0;
+   pt->compressed = compress_byte ? 1 : 0;
+   pt->cpp = pt->compressed ? compress_byte : st_sizeof_format(format);
+   pt->refcount = 1; 
 
-      pipe->winsys->region_release(pipe->winsys, &((*mt)->region));
+   st->pipe->texture_create(st->pipe, &pt);
 
-      for (i = 0; i < MAX_TEXTURE_LEVELS; i++)
-         if ((*mt)->level[i].image_offset)
-            free((*mt)->level[i].image_offset);
-
-      free(*mt);
-   }
-   *mt = NULL;
+   return pt;
 }
 
 
 
 
-/* Can the image be pulled into a unified mipmap tree.  This mirrors
+/* Can the image be pulled into a unified mipmap texture.  This mirrors
  * the completeness test in a lot of ways.
  *
  * Not sure whether I want to pass gl_texture_image here.
  */
 GLboolean
-st_miptree_match_image(struct pipe_mipmap_tree *mt,
+st_texture_match_image(struct pipe_texture *pt,
                           struct gl_texture_image *image,
                           GLuint face, GLuint level)
 {
-   /* Images with borders are never pulled into mipmap trees. 
+   /* Images with borders are never pulled into mipmap textures. 
     */
    if (image->Border) 
       return GL_FALSE;
 
-   if (image->InternalFormat != mt->internal_format ||
-       image->IsCompressed != mt->compressed)
+   if (image->InternalFormat != pt->internal_format ||
+       image->IsCompressed != pt->compressed)
       return GL_FALSE;
 
    /* Test image dimensions against the base level image adjusted for
     * minification.  This will also catch images not present in the
-    * tree, changed targets, etc.
+    * texture, changed targets, etc.
     */
-   if (image->Width != mt->level[level].width ||
-       image->Height != mt->level[level].height ||
-       image->Depth != mt->level[level].depth)
+   if (image->Width != pt->width[level] ||
+       image->Height != pt->height[level] ||
+       image->Depth != pt->depth[level])
       return GL_FALSE;
 
    return GL_TRUE;
 }
 
 
+#if 000
 /* Although we use the image_offset[] array to store relative offsets
  * to cube faces, Mesa doesn't know anything about this and expects
  * each cube face to be treated as a separate image.
@@ -179,14 +143,14 @@ st_miptree_match_image(struct pipe_mipmap_tree *mt,
  * These functions present that view to mesa:
  */
 const GLuint *
-st_miptree_depth_offsets(struct pipe_mipmap_tree *mt, GLuint level)
+st_texture_depth_offsets(struct pipe_texture *pt, GLuint level)
 {
    static const GLuint zero = 0;
 
-   if (mt->target != PIPE_TEXTURE_3D || mt->level[level].nr_images == 1)
+   if (pt->target != PIPE_TEXTURE_3D || pt->level[level].nr_images == 1)
       return &zero;
    else
-      return mt->level[level].image_offset;
+      return pt->level[level].image_offset;
 }
 
 
@@ -195,63 +159,47 @@ st_miptree_depth_offsets(struct pipe_mipmap_tree *mt, GLuint level)
  * texture memory buffer, in bytes.
  */
 GLuint
-st_miptree_image_offset(const struct pipe_mipmap_tree * mt,
+st_texture_image_offset(const struct pipe_texture * pt,
                         GLuint face, GLuint level)
 {
-   if (mt->target == PIPE_TEXTURE_CUBE)
-      return (mt->level[level].level_offset +
-              mt->level[level].image_offset[face] * mt->cpp);
+   if (pt->target == PIPE_TEXTURE_CUBE)
+      return (pt->level[level].level_offset +
+              pt->level[level].image_offset[face] * pt->cpp);
    else
-      return mt->level[level].level_offset;
+      return pt->level[level].level_offset;
 }
-
-
-GLuint
-st_miptree_texel_offset(const struct pipe_mipmap_tree * mt,
-                        GLuint face, GLuint level,
-                        GLuint col, GLuint row, GLuint img)
-{
-   GLuint imgOffset = st_miptree_image_offset(mt, face, level);
-
-   return imgOffset + row * (mt->pitch + col) * mt->cpp;
-}
-
+#endif
 
 
 /**
- * Map a teximage in a mipmap tree.
+ * Map a teximage in a mipmap texture.
  * \param row_stride  returns row stride in bytes
  * \param image_stride  returns image stride in bytes (for 3D textures).
  * \return address of mapping
  */
 GLubyte *
-st_miptree_image_map(struct pipe_context *pipe,
-                        struct pipe_mipmap_tree * mt,
-                        GLuint face,
-                        GLuint level,
-                        GLuint * row_stride, GLuint * image_offsets)
+st_texture_image_map(struct st_context *st, struct st_texture_image *stImage,
+		     GLuint zoffset)
 {
-   GLubyte *ptr;
+   struct pipe_texture *pt = stImage->pt;
    DBG("%s \n", __FUNCTION__);
 
-   if (row_stride)
-      *row_stride = mt->pitch * mt->cpp;
+   stImage->surface = st->pipe->get_tex_surface(st->pipe, pt, stImage->face,
+						stImage->level,	zoffset);
 
-   if (image_offsets)
-      memcpy(image_offsets, mt->level[level].image_offset,
-             mt->level[level].depth * sizeof(GLuint));
+   (void) st->pipe->region_map(st->pipe, stImage->surface->region);
 
-   ptr = pipe->region_map(pipe, mt->region);
-
-   return ptr + st_miptree_image_offset(mt, face, level);
+   return stImage->surface->region->map + stImage->surface->offset;
 }
 
 void
-st_miptree_image_unmap(struct pipe_context *pipe,
-                          struct pipe_mipmap_tree *mt)
+st_texture_image_unmap(struct st_context *st, struct st_texture_image *stImage)
 {
    DBG("%s\n", __FUNCTION__);
-   pipe->region_unmap(pipe, mt->region);
+
+   st->pipe->region_unmap(st->pipe, stImage->surface->region);
+
+   pipe_surface_reference(&stImage->surface, NULL);
 }
 
 
@@ -259,14 +207,14 @@ st_miptree_image_unmap(struct pipe_context *pipe,
 /* Upload data for a particular image.
  */
 void
-st_miptree_image_data(struct pipe_context *pipe,
-                      struct pipe_mipmap_tree *dst,
+st_texture_image_data(struct pipe_context *pipe,
+                      struct pipe_texture *dst,
                       GLuint face,
                       GLuint level,
                       void *src,
                       GLuint src_row_pitch, GLuint src_image_pitch)
 {
-   GLuint depth = dst->level[level].depth;
+   GLuint depth = dst->depth[level];
    GLuint i;
    GLuint height = 0;
    const GLubyte *srcUB = src;
@@ -274,7 +222,7 @@ st_miptree_image_data(struct pipe_context *pipe,
 
    DBG("%s\n", __FUNCTION__);
    for (i = 0; i < depth; i++) {
-      height = dst->level[level].height;
+      height = dst->height[level];
       if(dst->compressed)
 	 height /= 4;
 
@@ -285,7 +233,7 @@ st_miptree_image_data(struct pipe_context *pipe,
 			 srcUB,
 			 src_row_pitch,
 			 0, 0,                             /* source x, y */
-			 dst->level[level].width, height); /* width, height */
+			 dst->width[level], height); /* width, height */
 
       pipe_surface_reference(&dst_surface, NULL);
 
@@ -293,17 +241,17 @@ st_miptree_image_data(struct pipe_context *pipe,
    }
 }
 
-/* Copy mipmap image between trees
+/* Copy mipmap image between textures
  */
 void
-st_miptree_image_copy(struct pipe_context *pipe,
-                         struct pipe_mipmap_tree *dst,
+st_texture_image_copy(struct pipe_context *pipe,
+                         struct pipe_texture *dst,
                          GLuint face, GLuint level,
-                         struct pipe_mipmap_tree *src)
+                         struct pipe_texture *src)
 {
-   GLuint width = src->level[level].width;
-   GLuint height = src->level[level].height;
-   GLuint depth = src->level[level].depth;
+   GLuint width = src->width[level];
+   GLuint height = src->height[level];
+   GLuint depth = src->depth[level];
    struct pipe_surface *src_surface;
    struct pipe_surface *dst_surface;
    GLuint i;
diff --git a/src/mesa/state_tracker/st_mipmap_tree.h b/src/mesa/state_tracker/st_texture.h
index 3e7fd7fa0c..b25e3f3f3b 100644
--- a/src/mesa/state_tracker/st_mipmap_tree.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -25,94 +25,85 @@
  * 
  **************************************************************************/
 
-#ifndef ST_MIPMAP_TREE_H
-#define ST_MIPMAP_TREE_H
+#ifndef ST_TEXTURE_H
+#define ST_TEXTURE_H
 
 
 #include "main/mtypes.h"
 
 struct pipe_context;
-struct pipe_mipmap_tree;
+struct pipe_texture;
 struct pipe_region;
 
 
-extern struct pipe_mipmap_tree *
-st_miptree_create(struct pipe_context *pipe,
-                  GLenum target,
+extern struct pipe_texture *
+st_texture_create(struct st_context *st,
+                  unsigned target,
+		  unsigned format,
                   GLenum internal_format,
                   GLuint first_level,
                   GLuint last_level,
                   GLuint width0,
                   GLuint height0,
                   GLuint depth0,
-                  GLuint cpp,
                   GLuint compress_byte);
 
-extern void
-st_miptree_reference(struct pipe_mipmap_tree **dst,
-                     struct pipe_mipmap_tree *src);
-
-extern void
-st_miptree_release(struct pipe_context *pipe, struct pipe_mipmap_tree **mt);
-
 
-/* Check if an image fits an existing mipmap tree layout
+/* Check if an image fits an existing texture
  */
 extern GLboolean
-st_miptree_match_image(struct pipe_mipmap_tree *mt,
+st_texture_match_image(struct pipe_texture *pt,
                        struct gl_texture_image *image,
                        GLuint face, GLuint level);
 
-/* Return a pointer to an image within a tree.  Return image stride as
+/* Return a pointer to an image within a texture.  Return image stride as
  * well.
  */
 extern GLubyte *
-st_miptree_image_map(struct pipe_context *pipe,
-                     struct pipe_mipmap_tree *mt,
-                     GLuint face, GLuint level,
-                     GLuint * row_stride, GLuint * image_stride);
+st_texture_image_map(struct st_context *st,
+                     struct st_texture_image *stImage,
+		     GLuint zoffset);
 
 extern void
-st_miptree_image_unmap(struct pipe_context *pipe,
-                       struct pipe_mipmap_tree *mt);
+st_texture_image_unmap(struct st_context *st,
+                       struct st_texture_image *stImage);
 
 
 /* Return pointers to each 2d slice within an image.  Indexed by depth
  * value.
  */
 extern const GLuint *
-st_miptree_depth_offsets(struct pipe_mipmap_tree *mt, GLuint level);
+st_texture_depth_offsets(struct pipe_texture *pt, GLuint level);
 
 
-/* Return the linear offset of an image relative to the start of the
- * tree:
+/* Return the linear offset of an image relative to the start of its region:
  */
 extern GLuint
-st_miptree_image_offset(const struct pipe_mipmap_tree *mt,
+st_texture_image_offset(const struct pipe_texture *pt,
                         GLuint face, GLuint level);
 
 extern GLuint
-st_miptree_texel_offset(const struct pipe_mipmap_tree * mt,
+st_texture_texel_offset(const struct pipe_texture * pt,
                         GLuint face, GLuint level,
                         GLuint col, GLuint row, GLuint img);
 
 
-/* Upload an image into a tree
+/* Upload an image into a texture
  */
 extern void
-st_miptree_image_data(struct pipe_context *pipe,
-                      struct pipe_mipmap_tree *dst,
+st_texture_image_data(struct pipe_context *pipe,
+                      struct pipe_texture *dst,
                       GLuint face, GLuint level, void *src,
                       GLuint src_row_pitch, GLuint src_image_pitch);
 
 
-/* Copy an image between two trees
+/* Copy an image between two textures
  */
 extern void
-st_miptree_image_copy(struct pipe_context *pipe,
-                      struct pipe_mipmap_tree *dst,
+st_texture_image_copy(struct pipe_context *pipe,
+                      struct pipe_texture *dst,
                       GLuint face, GLuint level,
-                      struct pipe_mipmap_tree *src);
+                      struct pipe_texture *src);
 
 
 #endif