Merge branch 'master' into gallium-sampler-view

Conflicts:
	src/gallium/auxiliary/Makefile
	src/gallium/auxiliary/SConscript
	src/gallium/auxiliary/tgsi/tgsi_exec.c
	src/gallium/auxiliary/util/u_blitter.c
	src/gallium/drivers/i915/i915_context.h
	src/gallium/drivers/i965/brw_context.h
	src/gallium/drivers/llvmpipe/lp_context.h
	src/gallium/drivers/nv50/nv50_context.h
	src/gallium/drivers/nv50/nv50_state_validate.c
	src/gallium/drivers/nv50/nv50_tex.c
	src/gallium/drivers/r300/r300_blit.c
	src/gallium/drivers/r300/r300_context.h
	src/gallium/drivers/r300/r300_emit.c
	src/gallium/drivers/r300/r300_state.c
	src/gallium/drivers/softpipe/sp_context.h
	src/gallium/drivers/svga/svga_context.h
	src/gallium/drivers/svga/svga_pipe_sampler.c

19 files changed, 436 insertions, 161 deletions

diff --git a/src/gallium/drivers/cell/ppu/Makefile b/src/gallium/drivers/cell/ppu/Makefile
index c92f8e5cba..8769b826b5 100644
--- a/src/gallium/drivers/cell/ppu/Makefile
+++ b/src/gallium/drivers/cell/ppu/Makefile
@@ -21,6 +21,7 @@ SPU_CODE_MODULE = ../spu/g3d_spu.a
 
 SOURCES = \
 	cell_batch.c \
+	cell_buffer.c \
 	cell_clear.c \
 	cell_context.c \
 	cell_draw_arrays.c \
diff --git a/src/gallium/drivers/cell/ppu/cell_buffer.c b/src/gallium/drivers/cell/ppu/cell_buffer.c
new file mode 100644
index 0000000000..f56a28d62e
--- /dev/null
+++ b/src/gallium/drivers/cell/ppu/cell_buffer.c
@@ -0,0 +1,118 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#include "util/u_inlines.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "cell_screen.h"
+#include "cell_buffer.h"
+
+
+static void *
+cell_buffer_map(struct pipe_screen *screen,
+                    struct pipe_buffer *buf,
+                    unsigned flags)
+{
+   struct cell_buffer *cell_buf = cell_buffer(buf);
+   return cell_buf->data;
+}
+
+
+static void
+cell_buffer_unmap(struct pipe_screen *screen,
+                      struct pipe_buffer *buf)
+{
+}
+
+
+static void
+cell_buffer_destroy(struct pipe_buffer *buf)
+{
+   struct cell_buffer *sbuf = cell_buffer(buf);
+
+   if (!sbuf->userBuffer)
+      align_free(sbuf->data);
+      
+   FREE(sbuf);
+}
+
+
+static struct pipe_buffer *
+cell_buffer_create(struct pipe_screen *screen,
+                       unsigned alignment,
+                       unsigned usage,
+                       unsigned size)
+{
+   struct cell_buffer *buffer = CALLOC_STRUCT(cell_buffer);
+
+   pipe_reference_init(&buffer->base.reference, 1);
+   buffer->base.screen = screen;
+   buffer->base.alignment = MAX2(alignment, 16);
+   buffer->base.usage = usage;
+   buffer->base.size = size;
+
+   buffer->data = align_malloc(size, alignment);
+
+   return &buffer->base;
+}
+
+
+/**
+ * Create buffer which wraps user-space data.
+ */
+static struct pipe_buffer *
+cell_user_buffer_create(struct pipe_screen *screen,
+                            void *ptr,
+                            unsigned bytes)
+{
+   struct cell_buffer *buffer;
+
+   buffer = CALLOC_STRUCT(cell_buffer);
+   if(!buffer)
+      return NULL;
+
+   pipe_reference_init(&buffer->base.reference, 1);
+   buffer->base.screen = screen;
+   buffer->base.size = bytes;
+   buffer->userBuffer = TRUE;
+   buffer->data = ptr;
+
+   return &buffer->base;
+}
+
+
+void
+cell_init_screen_buffer_funcs(struct pipe_screen *screen)
+{
+   screen->buffer_create = cell_buffer_create;
+   screen->user_buffer_create = cell_user_buffer_create;
+   screen->buffer_map = cell_buffer_map;
+   screen->buffer_unmap = cell_buffer_unmap;
+   screen->buffer_destroy = cell_buffer_destroy;
+}
diff --git a/src/gallium/drivers/cell/ppu/cell_winsys.h b/src/gallium/drivers/cell/ppu/cell_buffer.h
index e227e065ff..ef0a8a70e5 100644
--- a/src/gallium/drivers/cell/ppu/cell_winsys.h
+++ b/src/gallium/drivers/cell/ppu/cell_buffer.h
@@ -1,8 +1,8 @@
 /**************************************************************************
- * 
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ *
+ * Copyright 2009 VMware, Inc.
  * All Rights Reserved.
- * 
+ *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
@@ -10,38 +10,46 @@
  * distribute, sub license, and/or sell copies of the Software, and to
  * permit persons to whom the Software is furnished to do so, subject to
  * the following conditions:
- * 
+ *
  * The above copyright notice and this permission notice (including the
  * next paragraph) shall be included in all copies or substantial portions
  * of the Software.
- * 
+ *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
+ *
  **************************************************************************/
 
-
-#ifndef CELL_WINSYS_H
-#define CELL_WINSYS_H
+#ifndef SP_BUFFER_H
+#define SP_BUFFER_H
 
 #include "pipe/p_compiler.h"
+#include "pipe/p_state.h"
 
 
-/**
- * Very simple winsys at this time.
- * Will probably eventually add SPU control info.
- */
-struct cell_winsys
+struct cell_buffer
 {
-   uint dummy;
+   struct pipe_buffer base;
+   boolean userBuffer;  /** Is this a user-space buffer? */
+   void *data;
 };
 
 
+/** Cast wrapper */
+static INLINE struct cell_buffer *
+cell_buffer( struct pipe_buffer *buf )
+{
+   return (struct cell_buffer *)buf;
+}
+
+
+void
+cell_init_screen_buffer_funcs(struct pipe_screen *screen);
 
 
-#endif
+#endif /* SP_BUFFER_H */
diff --git a/src/gallium/drivers/cell/ppu/cell_context.c b/src/gallium/drivers/cell/ppu/cell_context.c
index 5bff9869fd..afcea616d5 100644
--- a/src/gallium/drivers/cell/ppu/cell_context.c
+++ b/src/gallium/drivers/cell/ppu/cell_context.c
@@ -36,7 +36,6 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_format.h"
 #include "util/u_memory.h"
-#include "util/u_simple_screen.h"
 #include "pipe/p_screen.h"
 
 #include "draw/draw_context.h"
@@ -137,7 +136,7 @@ cell_create_context(struct pipe_screen *screen,
    memset(cell, 0, sizeof(*cell));
 
    cell->winsys = NULL;		/* XXX: fixme - get this from screen? */
-   cell->pipe.winsys = screen->winsys;
+   cell->pipe.winsys = NULL;
    cell->pipe.screen = screen;
    cell->pipe.priv = priv;
    cell->pipe.destroy = cell_destroy_context;
diff --git a/src/gallium/drivers/cell/ppu/cell_context.h b/src/gallium/drivers/cell/ppu/cell_context.h
index 0724da9a7a..4d87f9a038 100644
--- a/src/gallium/drivers/cell/ppu/cell_context.h
+++ b/src/gallium/drivers/cell/ppu/cell_context.h
@@ -34,7 +34,7 @@
 #include "pipe/p_defines.h"
 #include "draw/draw_vertex.h"
 #include "draw/draw_vbuf.h"
-#include "cell_winsys.h"
+/*#include "cell_winsys.h"*/
 #include "cell/common.h"
 #include "rtasm/rtasm_ppc_spe.h"
 #include "tgsi/tgsi_scan.h"
@@ -93,6 +93,11 @@ struct cell_buffer_list
    struct cell_buffer_node *head;
 };
 
+struct cell_velems_state
+{
+   unsigned count;
+   struct pipe_vertex_element velem[PIPE_MAX_ATTRIBS];
+}
 
 /**
  * Per-context state, subclass of pipe_context.
@@ -110,6 +115,7 @@ struct cell_context
    const struct pipe_rasterizer_state *rasterizer;
    const struct cell_vertex_shader_state *vs;
    const struct cell_fragment_shader_state *fs;
+   const struct cell_velems_state *velems;
 
    struct spe_function logic_op;
 
@@ -126,8 +132,6 @@ struct cell_context
    struct pipe_viewport_state viewport;
    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
    uint num_vertex_buffers;
-   struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
-   uint num_vertex_elements;
 
    ubyte *cbuf_map[PIPE_MAX_COLOR_BUFS];
    ubyte *zsbuf_map;
diff --git a/src/gallium/drivers/cell/ppu/cell_draw_arrays.c b/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
index bffd0fac6f..15d4e8338f 100644
--- a/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
+++ b/src/gallium/drivers/cell/ppu/cell_draw_arrays.c
@@ -33,48 +33,18 @@
 
 #include "pipe/p_defines.h"
 #include "pipe/p_context.h"
-#include "util/u_simple_screen.h"
 #include "util/u_inlines.h"
 
 #include "cell_context.h"
 #include "cell_draw_arrays.h"
 #include "cell_state.h"
 #include "cell_flush.h"
+#include "cell_buffer.h"
 
 #include "draw/draw_context.h"
 
 
 
-static void
-cell_map_constant_buffers(struct cell_context *sp)
-{
-   struct pipe_winsys *ws = sp->pipe.winsys;
-   uint i;
-   for (i = 0; i < 2; i++) {
-      if (sp->constants[i] && sp->constants[i]->size) {
-         sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i],
-                                                   PIPE_BUFFER_USAGE_CPU_READ);
-         cell_flush_buffer_range(sp, sp->mapped_constants[i], 
-                                 sp->constants[i]->size);
-      }
-   }
-
-   draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_VERTEX, 0,
-                                   sp->mapped_constants[PIPE_SHADER_VERTEX],
-                                   sp->constants[PIPE_SHADER_VERTEX]->size);
-}
-
-static void
-cell_unmap_constant_buffers(struct cell_context *sp)
-{
-   struct pipe_winsys *ws = sp->pipe.winsys;
-   uint i;
-   for (i = 0; i < 2; i++) {
-      if (sp->constants[i] && sp->constants[i]->size)
-         ws->buffer_unmap(ws, sp->constants[i]);
-      sp->mapped_constants[i] = NULL;
-   }
-}
 
 
 
@@ -93,33 +63,27 @@ cell_draw_range_elements(struct pipe_context *pipe,
                          unsigned max_index,
                          unsigned mode, unsigned start, unsigned count)
 {
-   struct cell_context *sp = cell_context(pipe);
-   struct draw_context *draw = sp->draw;
+   struct cell_context *cell = cell_context(pipe);
+   struct draw_context *draw = cell->draw;
    unsigned i;
 
-   if (sp->dirty)
-      cell_update_derived( sp );
+   if (cell->dirty)
+      cell_update_derived( cell );
 
 #if 0
-   cell_map_surfaces(sp);
+   cell_map_surfaces(cell);
 #endif
-   cell_map_constant_buffers(sp);
 
    /*
     * Map vertex buffers
     */
-   for (i = 0; i < sp->num_vertex_buffers; i++) {
-      void *buf = pipe_buffer_map(pipe->screen,
-                                           sp->vertex_buffer[i].buffer,
-                                           PIPE_BUFFER_USAGE_CPU_READ);
-      cell_flush_buffer_range(sp, buf, sp->vertex_buffer[i].buffer->size);
+   for (i = 0; i < cell->num_vertex_buffers; i++) {
+      void *buf = cell_buffer(cell->vertex_buffer[i].buffer)->data;
       draw_set_mapped_vertex_buffer(draw, i, buf);
    }
    /* Map index buffer, if present */
    if (indexBuffer) {
-      void *mapped_indexes = pipe_buffer_map(pipe->screen,
-                                                      indexBuffer,
-                                                      PIPE_BUFFER_USAGE_CPU_READ);
+      void *mapped_indexes = cell_buffer(indexBuffer)->data;
       draw_set_mapped_element_buffer(draw, indexSize, mapped_indexes);
    }
    else {
@@ -134,17 +98,19 @@ cell_draw_range_elements(struct pipe_context *pipe,
    /*
     * unmap vertex/index buffers - will cause draw module to flush
     */
-   for (i = 0; i < sp->num_vertex_buffers; i++) {
+   for (i = 0; i < cell->num_vertex_buffers; i++) {
       draw_set_mapped_vertex_buffer(draw, i, NULL);
-      pipe_buffer_unmap(pipe->screen, sp->vertex_buffer[i].buffer);
    }
    if (indexBuffer) {
       draw_set_mapped_element_buffer(draw, 0, NULL);
-      pipe_buffer_unmap(pipe->screen, indexBuffer);
    }
 
-   /* Note: leave drawing surfaces mapped */
-   cell_unmap_constant_buffers(sp);
+   /*
+    * TODO: Flush only when a user vertex/index buffer is present
+    * (or even better, modify draw module to do this
+    * internally when this condition is seen?)
+    */
+   draw_flush(draw);
 }
 
 
diff --git a/src/gallium/drivers/cell/ppu/cell_fence.c b/src/gallium/drivers/cell/ppu/cell_fence.c
index e10071529a..035ef41b89 100644
--- a/src/gallium/drivers/cell/ppu/cell_fence.c
+++ b/src/gallium/drivers/cell/ppu/cell_fence.c
@@ -92,7 +92,6 @@ cell_add_buffer_to_list(struct cell_context *cell,
                         struct cell_buffer_list *list,
                         struct pipe_buffer *buffer)
 {
-   struct pipe_screen *ps = cell->pipe.screen;
    struct cell_buffer_node *node = CALLOC_STRUCT(cell_buffer_node);
    /* create new list node which references the buffer, insert at head */
    if (node) {
@@ -157,8 +156,13 @@ cell_add_fenced_textures(struct cell_context *cell)
          printf("Adding texture %p buffer %p to list\n",
                 ct, ct->tiled_buffer[level]);
 #endif
-         if (ct->buffer)
+#if 00
+         /* XXX this needs to be fixed/restored!
+          * Maybe keep pointers to textures, not buffers.
+          */
+         if (ct->base.buffer)
             cell_add_buffer_to_list(cell, list, ct->buffer);
+#endif
       }
    }
 }
diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fragment.c b/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
index 70683bb367..576d514741 100644
--- a/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
+++ b/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
@@ -304,7 +304,7 @@ unpack_colors(struct spe_function *f,
    spe_comment(f, 0, "Unpack framebuffer colors, convert to floats");
 
    switch (color_format) {
-   case PIPE_FORMAT_A8R8G8B8_UNORM:
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
       /* fbB = fbRGBA & mask */
       spe_and(f, fbB_reg, fbRGBA_reg, mask0_reg);
 
@@ -327,7 +327,7 @@ unpack_colors(struct spe_function *f,
       spe_roti(f, fbA_reg, fbA_reg, -24);
       break;
 
-   case PIPE_FORMAT_B8G8R8A8_UNORM:
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
       /* fbA = fbRGBA & mask */
       spe_and(f, fbA_reg, fbRGBA_reg, mask0_reg);
 
@@ -1043,12 +1043,12 @@ gen_pack_colors(struct spe_function *f,
    spe_rotmi(f, a_reg, a_reg, -24);
 
    /* Shift the color bytes according to the surface format */
-   if (color_format == PIPE_FORMAT_A8R8G8B8_UNORM) {
+   if (color_format == PIPE_FORMAT_B8G8R8A8_UNORM) {
       spe_roti(f, g_reg, g_reg, 8);   /* green <<= 8 */
       spe_roti(f, r_reg, r_reg, 16);  /* red <<= 16 */
       spe_roti(f, a_reg, a_reg, 24);  /* alpha <<= 24 */
    }
-   else if (color_format == PIPE_FORMAT_B8G8R8A8_UNORM) {
+   else if (color_format == PIPE_FORMAT_A8R8G8B8_UNORM) {
       spe_roti(f, r_reg, r_reg, 8);   /* red <<= 8 */
       spe_roti(f, g_reg, g_reg, 16);  /* green <<= 16 */
       spe_roti(f, b_reg, b_reg, 24);  /* blue <<= 24 */
@@ -1096,14 +1096,14 @@ gen_colormask(struct spe_function *f,
     * end up, so we can mask them correctly.
     */
    switch(color_format) {
-      case PIPE_FORMAT_A8R8G8B8_UNORM:
+      case PIPE_FORMAT_B8G8R8A8_UNORM:
          /* ARGB */
          a_mask = 0xff000000;
          r_mask = 0x00ff0000;
          g_mask = 0x0000ff00;
          b_mask = 0x000000ff;
          break;
-      case PIPE_FORMAT_B8G8R8A8_UNORM:
+      case PIPE_FORMAT_A8R8G8B8_UNORM:
          /* BGRA */
          b_mask = 0xff000000;
          g_mask = 0x00ff0000;
@@ -1859,8 +1859,8 @@ gen_depth_stencil(struct cell_context *cell,
    spe_comment(f, 0, "Fetch Z/stencil quad from tile");
 
    switch(zs_format) {
-   case PIPE_FORMAT_S8Z24_UNORM: /* fall through */
-   case PIPE_FORMAT_X8Z24_UNORM:
+   case PIPE_FORMAT_Z24S8_UNORM: /* fall through */
+   case PIPE_FORMAT_Z24X8_UNORM:
       /* prepare mask to extract Z vals from ZS vals */
       spe_load_uint(f, zmask_reg, 0x00ffffff);
 
@@ -1880,8 +1880,8 @@ gen_depth_stencil(struct cell_context *cell,
       spe_rotmi(f, fbS_reg, fbZS_reg, -24);
       break;
 
-   case PIPE_FORMAT_Z24S8_UNORM: /* fall through */
-   case PIPE_FORMAT_Z24X8_UNORM:
+   case PIPE_FORMAT_S8Z24_UNORM: /* fall through */
+   case PIPE_FORMAT_X8Z24_UNORM:
       /* convert fragment Z from [0,1] to 32-bit ints */
       spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
 
@@ -1969,13 +1969,13 @@ gen_depth_stencil(struct cell_context *cell,
        * fbS_reg has four 8-bit Z values in bits [7..0].
        */
       spe_comment(f, 0, "Store quad's depth/stencil values in tile");
-      if (zs_format == PIPE_FORMAT_S8Z24_UNORM ||
-          zs_format == PIPE_FORMAT_X8Z24_UNORM) {
+      if (zs_format == PIPE_FORMAT_Z24S8_UNORM ||
+          zs_format == PIPE_FORMAT_Z24X8_UNORM) {
          spe_shli(f, fbS_reg, fbS_reg, 24); /* fbS = fbS << 24 */
          spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
       }
-      else if (zs_format == PIPE_FORMAT_Z24S8_UNORM ||
-               zs_format == PIPE_FORMAT_Z24X8_UNORM) {
+      else if (zs_format == PIPE_FORMAT_S8Z24_UNORM ||
+               zs_format == PIPE_FORMAT_X8Z24_UNORM) {
          spe_shli(f, fbZ_reg, fbZ_reg, 8); /* fbZ = fbZ << 8 */
          spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
       }
@@ -2015,7 +2015,7 @@ gen_depth_stencil(struct cell_context *cell,
  * code before the fragment shader to cull fragments/quads that are
  * totally occluded/discarded.
  *
- * XXX we only support PIPE_FORMAT_Z24S8_UNORM z/stencil buffer right now.
+ * XXX we only support PIPE_FORMAT_S8Z24_UNORM z/stencil buffer right now.
  *
  * See the spu_default_fragment_ops() function to see how the per-fragment
  * operations would be done with ordinary C code.
diff --git a/src/gallium/drivers/cell/ppu/cell_pipe_state.c b/src/gallium/drivers/cell/ppu/cell_pipe_state.c
index e1cf9dbbee..2fc82933e4 100644
--- a/src/gallium/drivers/cell/ppu/cell_pipe_state.c
+++ b/src/gallium/drivers/cell/ppu/cell_pipe_state.c
@@ -323,17 +323,23 @@ cell_sampler_view_destroy(struct pipe_context *pipe,
 static void
 cell_map_surfaces(struct cell_context *cell)
 {
+#if 0
    struct pipe_screen *screen = cell->pipe.screen;
+#endif
    uint i;
 
    for (i = 0; i < 1; i++) {
       struct pipe_surface *ps = cell->framebuffer.cbufs[i];
       if (ps) {
          struct cell_texture *ct = cell_texture(ps->texture);
+#if 0
          cell->cbuf_map[i] = screen->buffer_map(screen,
                                                 ct->buffer,
                                                 (PIPE_BUFFER_USAGE_GPU_READ |
                                                  PIPE_BUFFER_USAGE_GPU_WRITE));
+#else
+         cell->cbuf_map[i] = ct->data;
+#endif
       }
    }
 
@@ -341,10 +347,14 @@ cell_map_surfaces(struct cell_context *cell)
       struct pipe_surface *ps = cell->framebuffer.zsbuf;
       if (ps) {
          struct cell_texture *ct = cell_texture(ps->texture);
+#if 0
          cell->zsbuf_map = screen->buffer_map(screen,
                                               ct->buffer,
                                               (PIPE_BUFFER_USAGE_GPU_READ |
                                                PIPE_BUFFER_USAGE_GPU_WRITE));
+#else
+         cell->zsbuf_map = ct->data;
+#endif
       }
    }
 }
@@ -356,17 +366,17 @@ cell_map_surfaces(struct cell_context *cell)
 static void
 cell_unmap_surfaces(struct cell_context *cell)
 {
-   struct pipe_screen *screen = cell->pipe.screen;
+   /*struct pipe_screen *screen = cell->pipe.screen;*/
    uint i;
 
    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
       struct pipe_surface *ps = cell->framebuffer.cbufs[i];
       if (ps && cell->cbuf_map[i]) {
-         struct cell_texture *ct = cell_texture(ps->texture);
+         /*struct cell_texture *ct = cell_texture(ps->texture);*/
          assert(ps->texture);
-         assert(ct->buffer);
+         /*assert(ct->buffer);*/
 
-         screen->buffer_unmap(screen, ct->buffer);
+         /*screen->buffer_unmap(screen, ct->buffer);*/
          cell->cbuf_map[i] = NULL;
       }
    }
@@ -374,8 +384,8 @@ cell_unmap_surfaces(struct cell_context *cell)
    {
       struct pipe_surface *ps = cell->framebuffer.zsbuf;
       if (ps && cell->zsbuf_map) {
-         struct cell_texture *ct = cell_texture(ps->texture);
-         screen->buffer_unmap(screen, ct->buffer);
+         /*struct cell_texture *ct = cell_texture(ps->texture);*/
+         /*screen->buffer_unmap(screen, ct->buffer);*/
          cell->zsbuf_map = NULL;
       }
    }
diff --git a/src/gallium/drivers/cell/ppu/cell_public.h b/src/gallium/drivers/cell/ppu/cell_public.h
new file mode 100644
index 0000000000..7e2e093565
--- /dev/null
+++ b/src/gallium/drivers/cell/ppu/cell_public.h
@@ -0,0 +1,10 @@
+#ifndef CELL_PUBLIC_H
+#define CELL_PUBLIC_H
+
+struct pipe_screen;
+struct sw_winsys;
+
+struct pipe_screen *
+cell_create_screen(struct sw_winsys *winsys);
+
+#endif
diff --git a/src/gallium/drivers/cell/ppu/cell_screen.c b/src/gallium/drivers/cell/ppu/cell_screen.c
index 449855f539..31fd963d19 100644
--- a/src/gallium/drivers/cell/ppu/cell_screen.c
+++ b/src/gallium/drivers/cell/ppu/cell_screen.c
@@ -28,7 +28,6 @@
 
 #include "util/u_memory.h"
 #include "util/u_simple_screen.h"
-#include "util/u_simple_screen.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_screen.h"
 
@@ -36,7 +35,10 @@
 #include "cell_context.h"
 #include "cell_screen.h"
 #include "cell_texture.h"
-#include "cell_winsys.h"
+#include "cell_buffer.h"
+#include "cell_public.h"
+
+#include "state_tracker/sw_winsys.h"
 
 
 static const char *
@@ -134,19 +136,28 @@ cell_is_format_supported( struct pipe_screen *screen,
                           unsigned tex_usage, 
                           unsigned geom_flags )
 {
-   /* cell supports most formats, XXX for now anyway */
+   struct sw_winsys *winsys = cell_screen(screen)->winsys;
+
    if (format == PIPE_FORMAT_DXT5_RGBA ||
-       format == PIPE_FORMAT_R8G8B8A8_SRGB)
+       format == PIPE_FORMAT_A8B8G8R8_SRGB)
       return FALSE;
-   else
-      return TRUE;
+
+   if (tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) {
+      if (!winsys->is_displaytarget_format_supported(winsys, format))
+         return FALSE;
+   }
+
+   /* This is often a lie.  Pull in logic from llvmpipe to fix.
+    */
+   return TRUE;
 }
 
 
 static void
 cell_destroy_screen( struct pipe_screen *screen )
 {
-   struct pipe_winsys *winsys = screen->winsys;
+   struct cell_screen *sp_screen = cell_screen(screen);
+   struct sw_winsys *winsys = sp_screen->winsys;
 
    if(winsys->destroy)
       winsys->destroy(winsys);
@@ -155,32 +166,34 @@ cell_destroy_screen( struct pipe_screen *screen )
 }
 
 
+
 /**
  * Create a new pipe_screen object
  * Note: we're not presently subclassing pipe_screen (no cell_screen) but
  * that would be the place to put SPU thread/context info...
  */
 struct pipe_screen *
-cell_create_screen(struct pipe_winsys *winsys)
+cell_create_screen(struct sw_winsys *winsys)
 {
-   struct pipe_screen *screen = CALLOC_STRUCT(pipe_screen);
+   struct cell_screen *screen = CALLOC_STRUCT(cell_screen);
 
    if (!screen)
       return NULL;
 
    screen->winsys = winsys;
+   screen->base.winsys = NULL;
 
-   screen->destroy = cell_destroy_screen;
+   screen->base.destroy = cell_destroy_screen;
 
-   screen->get_name = cell_get_name;
-   screen->get_vendor = cell_get_vendor;
-   screen->get_param = cell_get_param;
-   screen->get_paramf = cell_get_paramf;
-   screen->is_format_supported = cell_is_format_supported;
-   screen->context_create = cell_create_context;
+   screen->base.get_name = cell_get_name;
+   screen->base.get_vendor = cell_get_vendor;
+   screen->base.get_param = cell_get_param;
+   screen->base.get_paramf = cell_get_paramf;
+   screen->base.is_format_supported = cell_is_format_supported;
+   screen->base.context_create = cell_create_context;
 
-   cell_init_screen_texture_funcs(screen);
-   u_simple_screen_init(screen);
+   cell_init_screen_texture_funcs(&screen->base);
+   cell_init_screen_buffer_funcs(&screen->base);
 
-   return screen;
+   return &screen->base;
 }
diff --git a/src/gallium/drivers/cell/ppu/cell_screen.h b/src/gallium/drivers/cell/ppu/cell_screen.h
index c7e15889d6..baff9d3b7d 100644
--- a/src/gallium/drivers/cell/ppu/cell_screen.h
+++ b/src/gallium/drivers/cell/ppu/cell_screen.h
@@ -30,12 +30,26 @@
 #define CELL_SCREEN_H
 
 
-struct pipe_screen;
-struct pipe_winsys;
+#include "pipe/p_screen.h"
 
+struct sw_winsys;
 
-extern struct pipe_screen *
-cell_create_screen(struct pipe_winsys *winsys);
+struct cell_screen {
+   struct pipe_screen base;
+
+   struct sw_winsys *winsys;
+
+   /* Increments whenever textures are modified.  Contexts can track
+    * this.
+    */
+   unsigned timestamp;          
+};
+
+static INLINE struct cell_screen *
+cell_screen( struct pipe_screen *pipe )
+{
+   return (struct cell_screen *)pipe;
+}
 
 
 #endif /* CELL_SCREEN_H */
diff --git a/src/gallium/drivers/cell/ppu/cell_state_emit.c b/src/gallium/drivers/cell/ppu/cell_state_emit.c
index a59c7828ac..424e2628a9 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_emit.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_emit.c
@@ -245,16 +245,13 @@ cell_emit_state(struct cell_context *cell)
       uint i, j;
       float *buf = cell_batch_alloc16(cell, ROUNDUP16(32 + num_const * sizeof(float)));
       uint32_t *ibuf = (uint32_t *) buf;
-      const float *constants = pipe_buffer_map(cell->pipe.screen,
-                                               cell->constants[shader],
-                                               PIPE_BUFFER_USAGE_CPU_READ);
+      const float *constants = cell->mapped_constants[shader];
       ibuf[0] = CELL_CMD_STATE_FS_CONSTANTS;
       ibuf[4] = num_const;
       j = 8;
       for (i = 0; i < num_const; i++) {
          buf[j++] = constants[i];
       }
-      pipe_buffer_unmap(cell->pipe.screen, cell->constants[shader]);
    }
 
    if (cell->dirty & (CELL_NEW_FRAMEBUFFER |
diff --git a/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c b/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c
index 07be5e92ea..dc33e7ccc2 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_per_fragment.c
@@ -1251,7 +1251,7 @@ cell_generate_logic_op(struct spe_function *f,
    /* Convert fragment colors to framebuffer format in AoS layout.
     */
    switch (surf->format) {
-   case PIPE_FORMAT_A8R8G8B8_UNORM:
+   case PIPE_FORMAT_B8G8R8A8_UNORM:
       data[0] = 0x00010203;
       data[1] = 0x10111213;
       data[2] = 0x04050607;
@@ -1261,7 +1261,7 @@ cell_generate_logic_op(struct spe_function *f,
       data[6] = 0x80808080;
       data[7] = 0x80808080;
       break;
-   case PIPE_FORMAT_B8G8R8A8_UNORM:
+   case PIPE_FORMAT_A8R8G8B8_UNORM:
       data[0] = 0x03020100;
       data[1] = 0x13121110;
       data[2] = 0x07060504;
diff --git a/src/gallium/drivers/cell/ppu/cell_state_shader.c b/src/gallium/drivers/cell/ppu/cell_state_shader.c
index 9b2f86fdfb..9e29ddc2d4 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_shader.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_shader.c
@@ -28,13 +28,13 @@
 #include "pipe/p_defines.h"
 #include "util/u_memory.h"
 #include "util/u_inlines.h"
-#include "util/u_simple_screen.h"
 #include "draw/draw_context.h"
 #include "tgsi/tgsi_parse.h"
 
 #include "cell_context.h"
 #include "cell_state.h"
 #include "cell_gen_fp.h"
+#include "cell_buffer.h"
 
 
 /** cast wrapper */
@@ -183,17 +183,29 @@ cell_delete_vs_state(struct pipe_context *pipe, void *vs)
 static void
 cell_set_constant_buffer(struct pipe_context *pipe,
                          uint shader, uint index,
-                         struct pipe_buffer *buf)
+                         struct pipe_buffer *constants)
 {
    struct cell_context *cell = cell_context(pipe);
+   unsigned size = constants ? constants->size : 0;
+   const void *data = constants ? cell_buffer(constants)->data : NULL;
 
    assert(shader < PIPE_SHADER_TYPES);
    assert(index == 0);
 
+   if (cell->constants[shader] == constants)
+      return;
+
    draw_flush(cell->draw);
 
    /* note: reference counting */
-   pipe_buffer_reference(&cell->constants[shader], buf);
+   pipe_buffer_reference(&cell->constants[shader], constants);
+
+   if(shader == PIPE_SHADER_VERTEX) {
+      draw_set_mapped_constant_buffer(cell->draw, PIPE_SHADER_VERTEX, 0,
+                                      data, size);
+   }
+
+   cell->mapped_constants[shader] = data;
 
    if (shader == PIPE_SHADER_VERTEX)
       cell->dirty |= CELL_NEW_VS_CONSTANTS;
diff --git a/src/gallium/drivers/cell/ppu/cell_state_vertex.c b/src/gallium/drivers/cell/ppu/cell_state_vertex.c
index fbe55c8472..d3efb8ecea 100644
--- a/src/gallium/drivers/cell/ppu/cell_state_vertex.c
+++ b/src/gallium/drivers/cell/ppu/cell_state_vertex.c
@@ -32,24 +32,43 @@
 #include "cell_context.h"
 #include "cell_state.h"
 
+#include "util/u_memory.h"
 #include "draw/draw_context.h"
 
 
-static void
-cell_set_vertex_elements(struct pipe_context *pipe,
-                         unsigned count,
-                         const struct pipe_vertex_element *elements)
+void *
+cell_create_vertex_elements_state(struct pipe_context *pipe,
+                                  unsigned count,
+                                  const struct pipe_vertex_element *attribs)
 {
-   struct cell_context *cell = cell_context(pipe);
-
+   struct cell_velems_state *velems;
    assert(count <= PIPE_MAX_ATTRIBS);
+   velems = (struct cell_velems_state *) MALLOC(sizeof(struct cell_velems_state));
+   if (velems) {
+      velems->count = count;
+      memcpy(velems->velem, attribs, sizeof(*attribs) * count);
+   }
+   return velems;
+}
+
+void
+cell_bind_vertex_elements_state(struct pipe_context *pipe,
+                                void *velems)
+{
+   struct cell_context *cell = cell_context(pipe);
+   struct cell_velems_state *cell_velems = (struct cell_velems_state *) velems;
 
-   memcpy(cell->vertex_element, elements, count * sizeof(elements[0]));
-   cell->num_vertex_elements = count;
+   cell->velems = cell_velems;
 
    cell->dirty |= CELL_NEW_VERTEX;
 
-   draw_set_vertex_elements(cell->draw, count, elements);
+   draw_set_vertex_elements(cell->draw, cell_velems->count, cell_velems->velem);
+}
+
+void
+cell_delete_vertex_elements_state(struct pipe_context *pipe, void *velems)
+{
+   FREE( velems );
 }
 
 
@@ -75,5 +94,7 @@ void
 cell_init_vertex_functions(struct cell_context *cell)
 {
    cell->pipe.set_vertex_buffers = cell_set_vertex_buffers;
-   cell->pipe.set_vertex_elements = cell_set_vertex_elements;
+   cell->pipe.create_vertex_elements_state = cell_create_vertex_elements_state;
+   cell->pipe.bind_vertex_elements_state = cell_bind_vertex_elements_state;
+   cell->pipe.delete_vertex_elements_state = cell_delete_vertex_elements_state;
 }
diff --git a/src/gallium/drivers/cell/ppu/cell_texture.c b/src/gallium/drivers/cell/ppu/cell_texture.c
index fad290dfa0..c8a1acd86a 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.c
+++ b/src/gallium/drivers/cell/ppu/cell_texture.c
@@ -34,20 +34,23 @@
 #include "pipe/p_context.h"
 #include "pipe/p_defines.h"
 #include "util/u_inlines.h"
-#include "util/u_simple_screen.h"
 
 #include "util/u_format.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 
 #include "cell_context.h"
+#include "cell_screen.h"
 #include "cell_state.h"
 #include "cell_texture.h"
 
+#include "state_tracker/sw_winsys.h"
 
 
-static void
-cell_texture_layout(struct cell_texture *ct)
+
+static boolean
+cell_texture_layout(struct pipe_screen *screen, 
+                    struct cell_texture *ct)
 {
    struct pipe_texture *pt = &ct->base;
    unsigned level;
@@ -83,9 +86,34 @@ cell_texture_layout(struct cell_texture *ct)
       height = u_minify(height, 1);
       depth = u_minify(depth, 1);
    }
+
+   ct->data = align_malloc(ct->buffer_size, 16);
+ 
+   return ct->data != NULL;
 }
 
 
+/**
+ * Texture layout for simple color buffers.
+ */
+static boolean
+cell_displaytarget_layout(struct pipe_screen *screen,
+                          struct cell_texture * ct)
+{
+   struct sw_winsys *winsys = cell_screen(screen)->winsys;
+
+   /* Round up the surface size to a multiple of the tile size?
+    */
+   ct->dt = winsys->displaytarget_create(winsys,
+                                          ct->base.format,
+                                          ct->base.width0, 
+                                          ct->base.height0,
+                                          16,
+                                          &ct->dt_stride );
+
+   return ct->dt != NULL;
+}
+
 static struct pipe_texture *
 cell_texture_create(struct pipe_screen *screen,
                     const struct pipe_texture *templat)
@@ -98,31 +126,46 @@ cell_texture_create(struct pipe_screen *screen,
    pipe_reference_init(&ct->base.reference, 1);
    ct->base.screen = screen;
 
-   cell_texture_layout(ct);
+   /* Create both a displaytarget (linear) and regular texture
+    * (twiddled).  Convert twiddled->linear at flush_frontbuffer time.
+    */
+   if (ct->base.tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
+                             PIPE_TEXTURE_USAGE_SCANOUT |
+                             PIPE_TEXTURE_USAGE_SHARED)) {
+      if (!cell_displaytarget_layout(screen, ct))
+         goto fail;
+   }
 
-   ct->buffer = screen->buffer_create(screen, 32, PIPE_BUFFER_USAGE_PIXEL,
-                                   ct->buffer_size);
+   if (!cell_texture_layout(screen, ct))
+      goto fail;
 
-   if (!ct->buffer) {
-      FREE(ct);
-      return NULL;
+   return &ct->base;
+
+fail:
+   if (ct->dt) {
+      struct sw_winsys *winsys = cell_screen(screen)->winsys;
+      winsys->displaytarget_destroy(winsys, ct->dt);
    }
 
-   return &ct->base;
+   FREE(ct);
+
+   return NULL;
 }
 
 
 static void
 cell_texture_destroy(struct pipe_texture *pt)
 {
+   struct cell_screen *screen = cell_screen(pt->screen);
+   struct sw_winsys *winsys = screen->winsys;
    struct cell_texture *ct = cell_texture(pt);
 
-   if (ct->mapped) {
-      pipe_buffer_unmap(ct->buffer->screen, ct->buffer);
-      ct->mapped = NULL;
+   if (ct->dt) {
+      /* display target */
+      winsys->displaytarget_destroy(winsys, ct->dt);
    }
 
-   pipe_buffer_reference(&ct->buffer, NULL);
+   align_free(ct->data);
 
    FREE(ct);
 }
@@ -389,10 +432,8 @@ cell_transfer_map(struct pipe_screen *screen, struct pipe_transfer *transfer)
 
    assert(transfer->texture);
 
-   if (!ct->mapped) {
-      /* map now */
-      ct->mapped = pipe_buffer_map(screen, ct->buffer,
-                                   pipe_transfer_buffer_flags(transfer));
+   if (ct->mapped == NULL) {
+      ct->mapped = ct->data;
    }
 
    /*
@@ -442,9 +483,8 @@ cell_transfer_unmap(struct pipe_screen *screen,
    const uint stride = ct->stride[level];
 
    if (!ct->mapped) {
-      /* map now */
-      ct->mapped = pipe_buffer_map(screen, ct->buffer,
-                                   PIPE_BUFFER_USAGE_CPU_READ);
+      assert(0);
+      return;
    }
 
    if (transfer->usage & PIPE_TRANSFER_WRITE) {
@@ -467,6 +507,50 @@ cell_transfer_unmap(struct pipe_screen *screen,
 }
 
 
+
+/* This used to be overriden by the co-state tracker, but really needs
+ * to be active with sw_winsys.
+ *
+ * Contrasting with llvmpipe and softpipe, this is the only place
+ * where we use the ct->dt display target in any real sense.
+ *
+ * Basically just untwiddle our local data into the linear
+ * displaytarget.
+ */
+static void
+cell_flush_frontbuffer(struct pipe_screen *_screen,
+                       struct pipe_surface *surface,
+                       void *context_private)
+{
+   struct cell_screen *screen = cell_screen(_screen);
+   struct sw_winsys *winsys = screen->winsys;
+   struct cell_texture *ct = cell_texture(surface->texture);
+
+   if (!ct->dt)
+      return;
+
+   /* Need to untwiddle from our internal representation here:
+    */
+   {
+      unsigned *map = winsys->displaytarget_map(winsys, ct->dt,
+                                                (PIPE_BUFFER_USAGE_CPU_READ |
+                                                 PIPE_BUFFER_USAGE_CPU_WRITE));
+      unsigned *src = (unsigned *)(ct->data + ct->level_offset[surface->level]);
+
+      untwiddle_image_uint(surface->width,
+                           surface->height,
+                           TILE_SIZE,
+                           map,
+                           ct->dt_stride,
+                           src);
+
+      winsys->displaytarget_unmap(winsys, ct->dt);
+   }
+
+   winsys->displaytarget_display(winsys, ct->dt, context_private);
+}
+
+
 void
 cell_init_screen_texture_funcs(struct pipe_screen *screen)
 {
@@ -481,4 +565,6 @@ cell_init_screen_texture_funcs(struct pipe_screen *screen)
 
    screen->transfer_map = cell_transfer_map;
    screen->transfer_unmap = cell_transfer_unmap;
+
+   screen->flush_frontbuffer = cell_flush_frontbuffer;
 }
diff --git a/src/gallium/drivers/cell/ppu/cell_texture.h b/src/gallium/drivers/cell/ppu/cell_texture.h
index 3ffc0bfdb5..2be0579312 100644
--- a/src/gallium/drivers/cell/ppu/cell_texture.h
+++ b/src/gallium/drivers/cell/ppu/cell_texture.h
@@ -28,6 +28,7 @@
 #ifndef CELL_TEXTURE_H
 #define CELL_TEXTURE_H
 
+#include "cell/common.h"
 
 struct cell_context;
 struct pipe_texture;
@@ -43,8 +44,20 @@ struct cell_texture
    unsigned long level_offset[CELL_MAX_TEXTURE_LEVELS];
    unsigned long stride[CELL_MAX_TEXTURE_LEVELS];
 
-   /** The tiled texture data is held in this buffer */
-   struct pipe_buffer *buffer;
+   /**
+    * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
+    * usage.
+    */
+   struct sw_displaytarget *dt;
+   unsigned dt_stride;
+
+   /**
+    * Malloc'ed data for regular textures, or a mapping to dt above.
+    */
+   void *data;
+
+   /* Size of the linear buffer??
+    */
    unsigned long buffer_size;
 
    /** The buffer above, mapped.  This is the memory from which the
diff --git a/src/gallium/drivers/cell/ppu/cell_vertex_shader.c b/src/gallium/drivers/cell/ppu/cell_vertex_shader.c
index cf8cd41159..3d389d6ea3 100644
--- a/src/gallium/drivers/cell/ppu/cell_vertex_shader.c
+++ b/src/gallium/drivers/cell/ppu/cell_vertex_shader.c
@@ -31,7 +31,6 @@
 
 #include "pipe/p_defines.h"
 #include "pipe/p_context.h"
-#include "util/u_simple_screen.h"
 #include "util/u_math.h"
 
 #include "cell_context.h"