Added few more stubs so that control reaches to DestroyDevice().
[mesa.git] / src / gallium / drivers / softpipe / sp_texture.c
index 11d184effb92d6bff08bffb1328dd21bd28f3a0e..c9a22a97891ae0ea4ddd35efc0be32e11f6eac81 100644 (file)
@@ -1,6 +1,6 @@
 /**************************************************************************
  * 
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2006 VMware, Inc.
  * All Rights Reserved.
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -18,7 +18,7 @@
  * 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.
  **************************************************************************/
  /*
   * Authors:
-  *   Keith Whitwell <keith@tungstengraphics.com>
-  *   Michel Dänzer <michel@tungstengraphics.com>
+  *   Keith Whitwell <keithw@vmware.com>
+  *   Michel Dänzer <daenzer@vmware.com>
   */
 
 #include "pipe/p_defines.h"
 #include "util/u_inlines.h"
 
-#include "util/u_format.h"
+#include "util/format/u_format.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
-#include "util/u_simple_screen.h"
+#include "util/u_transfer.h"
+#include "util/u_surface.h"
 
 #include "sp_context.h"
+#include "sp_flush.h"
 #include "sp_texture.h"
 #include "sp_screen.h"
 
-#include "state_tracker/sw_winsys.h"
+#include "frontend/sw_winsys.h"
 
 
 /**
  * Use a simple, maximally packed layout.
  */
 static boolean
-softpipe_texture_layout(struct pipe_screen *screen,
-                        struct softpipe_texture * spt)
+softpipe_resource_layout(struct pipe_screen *screen,
+                         struct softpipe_resource *spr,
+                         boolean allocate)
 {
-   struct pipe_texture *pt = &spt->base;
+   struct pipe_resource *pt = &spr->base;
    unsigned level;
    unsigned width = pt->width0;
    unsigned height = pt->height0;
    unsigned depth = pt->depth0;
-   unsigned buffer_size = 0;
+   uint64_t buffer_size = 0;
 
    for (level = 0; level <= pt->last_level; level++) {
-      spt->stride[level] = util_format_get_stride(pt->format, width);
+      unsigned slices, nblocksy;
 
-      spt->level_offset[level] = buffer_size;
+      nblocksy = util_format_get_nblocksy(pt->format, height);
 
-      buffer_size += (util_format_get_nblocksy(pt->format, height) *
-                      ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) *
-                      spt->stride[level]);
+      if (pt->target == PIPE_TEXTURE_CUBE)
+         assert(pt->array_size == 6);
+
+      if (pt->target == PIPE_TEXTURE_3D)
+         slices = depth;
+      else
+         slices = pt->array_size;
+
+      spr->stride[level] = util_format_get_stride(pt->format, width);
+
+      spr->level_offset[level] = buffer_size;
+
+      /* if row_stride * height > SP_MAX_TEXTURE_SIZE */
+      if ((uint64_t)spr->stride[level] * nblocksy > SP_MAX_TEXTURE_SIZE) {
+         /* image too large */
+         return FALSE;
+      }
+
+      spr->img_stride[level] = spr->stride[level] * nblocksy;
+
+      buffer_size += (uint64_t) spr->img_stride[level] * slices;
 
       width  = u_minify(width, 1);
       height = u_minify(height, 1);
       depth = u_minify(depth, 1);
    }
 
-   spt->data = align_malloc(buffer_size, 16);
+   if (buffer_size > SP_MAX_TEXTURE_SIZE)
+      return FALSE;
 
-   return spt->data != NULL;
+   if (allocate) {
+      spr->data = align_malloc(buffer_size, 64);
+      return spr->data != NULL;
+   }
+   else {
+      return TRUE;
+   }
+}
+
+
+/**
+ * Check the size of the texture specified by 'res'.
+ * \return TRUE if OK, FALSE if too large.
+ */
+static bool
+softpipe_can_create_resource(struct pipe_screen *screen,
+                             const struct pipe_resource *res)
+{
+   struct softpipe_resource spr;
+   memset(&spr, 0, sizeof(spr));
+   spr.base = *res;
+   return softpipe_resource_layout(screen, &spr, FALSE);
 }
 
 
@@ -85,142 +128,197 @@ softpipe_texture_layout(struct pipe_screen *screen,
  */
 static boolean
 softpipe_displaytarget_layout(struct pipe_screen *screen,
-                              struct softpipe_texture * spt)
+                              struct softpipe_resource *spr,
+                              const void *map_front_private)
 {
    struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
 
    /* Round up the surface size to a multiple of the tile size?
     */
-   spt->dt = winsys->displaytarget_create(winsys,
-                                          spt->base.format,
-                                          spt->base.width0, 
-                                          spt->base.height0,
-                                          16,
-                                          &spt->stride[0] );
-
-   return spt->dt != NULL;
+   spr->dt = winsys->displaytarget_create(winsys,
+                                          spr->base.bind,
+                                          spr->base.format,
+                                          spr->base.width0, 
+                                          spr->base.height0,
+                                          64,
+                                          map_front_private,
+                                          &spr->stride[0] );
+
+   return spr->dt != NULL;
 }
 
 
 /**
- * Create new pipe_texture given the template information.
+ * Create new pipe_resource given the template information.
  */
-static struct pipe_texture *
-softpipe_texture_create(struct pipe_screen *screen,
-                        const struct pipe_texture *template)
+static struct pipe_resource *
+softpipe_resource_create_front(struct pipe_screen *screen,
+                               const struct pipe_resource *templat,
+                               const void *map_front_private)
 {
-   struct softpipe_texture *spt = CALLOC_STRUCT(softpipe_texture);
-   if (!spt)
+   struct softpipe_resource *spr = CALLOC_STRUCT(softpipe_resource);
+   if (!spr)
       return NULL;
 
-   spt->base = *template;
-   pipe_reference_init(&spt->base.reference, 1);
-   spt->base.screen = screen;
+   assert(templat->format != PIPE_FORMAT_NONE);
+
+   spr->base = *templat;
+   pipe_reference_init(&spr->base.reference, 1);
+   spr->base.screen = screen;
 
-   spt->pot = (util_is_power_of_two(template->width0) &&
-               util_is_power_of_two(template->height0) &&
-               util_is_power_of_two(template->depth0));
+   spr->pot = (util_is_power_of_two_or_zero(templat->width0) &&
+               util_is_power_of_two_or_zero(templat->height0) &&
+               util_is_power_of_two_or_zero(templat->depth0));
 
-   if (spt->base.tex_usage & (PIPE_TEXTURE_USAGE_DISPLAY_TARGET |
-                              PIPE_TEXTURE_USAGE_SCANOUT |
-                              PIPE_TEXTURE_USAGE_SHARED)) {
-      if (!softpipe_displaytarget_layout(screen, spt))
+   if (spr->base.bind & (PIPE_BIND_DISPLAY_TARGET |
+                        PIPE_BIND_SCANOUT |
+                        PIPE_BIND_SHARED)) {
+      if (!softpipe_displaytarget_layout(screen, spr, map_front_private))
          goto fail;
    }
    else {
-      if (!softpipe_texture_layout(screen, spt))
+      if (!softpipe_resource_layout(screen, spr, TRUE))
          goto fail;
    }
     
-   return &spt->base;
+   return &spr->base;
 
  fail:
-   FREE(spt);
+   FREE(spr);
    return NULL;
 }
 
-
-
+static struct pipe_resource *
+softpipe_resource_create(struct pipe_screen *screen,
+                         const struct pipe_resource *templat)
+{
+   return softpipe_resource_create_front(screen, templat, NULL);
+}
 
 static void
-softpipe_texture_destroy(struct pipe_texture *pt)
+softpipe_resource_destroy(struct pipe_screen *pscreen,
+                         struct pipe_resource *pt)
 {
-   struct softpipe_screen *screen = softpipe_screen(pt->screen);
-   struct softpipe_texture *spt = softpipe_texture(pt);
+   struct softpipe_screen *screen = softpipe_screen(pscreen);
+   struct softpipe_resource *spr = softpipe_resource(pt);
 
-   if (spt->dt) {
+   if (spr->dt) {
       /* display target */
       struct sw_winsys *winsys = screen->winsys;
-      winsys->displaytarget_destroy(winsys, spt->dt);
+      winsys->displaytarget_destroy(winsys, spr->dt);
    }
-   else {
+   else if (!spr->userBuffer) {
       /* regular texture */
-      align_free(spt->data);
+      align_free(spr->data);
    }
 
-   FREE(spt);
+   FREE(spr);
+}
+
+
+static struct pipe_resource *
+softpipe_resource_from_handle(struct pipe_screen *screen,
+                              const struct pipe_resource *templat,
+                              struct winsys_handle *whandle,
+                              unsigned usage)
+{
+   struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
+   struct softpipe_resource *spr = CALLOC_STRUCT(softpipe_resource);
+   if (!spr)
+      return NULL;
+
+   spr->base = *templat;
+   pipe_reference_init(&spr->base.reference, 1);
+   spr->base.screen = screen;
+
+   spr->pot = (util_is_power_of_two_or_zero(templat->width0) &&
+               util_is_power_of_two_or_zero(templat->height0) &&
+               util_is_power_of_two_or_zero(templat->depth0));
+
+   spr->dt = winsys->displaytarget_from_handle(winsys,
+                                               templat,
+                                               whandle,
+                                               &spr->stride[0]);
+   if (!spr->dt)
+      goto fail;
+
+   return &spr->base;
+
+ fail:
+   FREE(spr);
+   return NULL;
+}
+
+
+static bool
+softpipe_resource_get_handle(struct pipe_screen *screen,
+                             struct pipe_context *ctx,
+                             struct pipe_resource *pt,
+                             struct winsys_handle *whandle,
+                             unsigned usage)
+{
+   struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
+   struct softpipe_resource *spr = softpipe_resource(pt);
+
+   assert(spr->dt);
+   if (!spr->dt)
+      return false;
+
+   return winsys->displaytarget_get_handle(winsys, spr->dt, whandle);
+}
+
+
+/**
+ * Helper function to compute offset (in bytes) for a particular
+ * texture level/face/slice from the start of the buffer.
+ */
+unsigned
+softpipe_get_tex_image_offset(const struct softpipe_resource *spr,
+                              unsigned level, unsigned layer)
+{
+   unsigned offset = spr->level_offset[level];
+
+   offset += layer * spr->img_stride[level];
+
+   return offset;
 }
 
 
 /**
- * Get a pipe_surface "view" into a texture.
+ * Get a pipe_surface "view" into a texture resource.
  */
 static struct pipe_surface *
-softpipe_get_tex_surface(struct pipe_screen *screen,
-                         struct pipe_texture *pt,
-                         unsigned face, unsigned level, unsigned zslice,
-                         unsigned usage)
+softpipe_create_surface(struct pipe_context *pipe,
+                        struct pipe_resource *pt,
+                        const struct pipe_surface *surf_tmpl)
 {
-   struct softpipe_texture *spt = softpipe_texture(pt);
    struct pipe_surface *ps;
 
-   assert(level <= pt->last_level);
-
    ps = CALLOC_STRUCT(pipe_surface);
    if (ps) {
       pipe_reference_init(&ps->reference, 1);
-      pipe_texture_reference(&ps->texture, pt);
-      ps->format = pt->format;
-      ps->width = u_minify(pt->width0, level);
-      ps->height = u_minify(pt->height0, level);
-      ps->offset = spt->level_offset[level];
-      ps->usage = usage;
-
-      /* Because we are softpipe, anything that the state tracker
-       * thought was going to be done with the GPU will actually get
-       * done with the CPU.  Let's adjust the flags to take that into
-       * account.
-       */
-      if (ps->usage & PIPE_BUFFER_USAGE_GPU_WRITE) {
-         /* GPU_WRITE means "render" and that can involve reads (blending) */
-         ps->usage |= PIPE_BUFFER_USAGE_CPU_WRITE | PIPE_BUFFER_USAGE_CPU_READ;
-      }
-
-      if (ps->usage & PIPE_BUFFER_USAGE_GPU_READ)
-         ps->usage |= PIPE_BUFFER_USAGE_CPU_READ;
-
-      if (ps->usage & (PIPE_BUFFER_USAGE_CPU_WRITE |
-                       PIPE_BUFFER_USAGE_GPU_WRITE)) {
-         /* Mark the surface as dirty.  The tile cache will look for this. */
-         spt->timestamp++;
-         softpipe_screen(screen)->timestamp++;
-      }
-
-      ps->face = face;
-      ps->level = level;
-      ps->zslice = zslice;
-
-      if (pt->target == PIPE_TEXTURE_CUBE) {
-         ps->offset += face * util_format_get_nblocksy(pt->format, u_minify(pt->height0, level)) *
-                       spt->stride[level];
-      }
-      else if (pt->target == PIPE_TEXTURE_3D) {
-         ps->offset += zslice * util_format_get_nblocksy(pt->format, u_minify(pt->height0, level)) *
-                       spt->stride[level];
+      pipe_resource_reference(&ps->texture, pt);
+      ps->context = pipe;
+      ps->format = surf_tmpl->format;
+      if (pt->target != PIPE_BUFFER) {
+         assert(surf_tmpl->u.tex.level <= pt->last_level);
+         ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
+         ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
+         ps->u.tex.level = surf_tmpl->u.tex.level;
+         ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
+         ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
+         if (ps->u.tex.first_layer != ps->u.tex.last_layer) {
+            debug_printf("creating surface with multiple layers, rendering to first layer only\n");
+         }
       }
       else {
-         assert(face == 0);
-         assert(zslice == 0);
+         /* setting width as number of elements should get us correct renderbuffer width */
+         ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
+         ps->height = pt->height0;
+         ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
+         ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
+         assert(ps->u.buf.first_element <= ps->u.buf.last_element);
+         assert(ps->u.buf.last_element < ps->width);
       }
    }
    return ps;
@@ -228,145 +326,127 @@ softpipe_get_tex_surface(struct pipe_screen *screen,
 
 
 /**
- * Free a pipe_surface which was created with softpipe_get_tex_surface().
+ * Free a pipe_surface which was created with softpipe_create_surface().
  */
 static void 
-softpipe_tex_surface_destroy(struct pipe_surface *surf)
+softpipe_surface_destroy(struct pipe_context *pipe,
+                         struct pipe_surface *surf)
 {
    /* Effectively do the texture_update work here - if texture images
     * needed post-processing to put them into hardware layout, this is
     * where it would happen.  For softpipe, nothing to do.
     */
    assert(surf->texture);
-   pipe_texture_reference(&surf->texture, NULL);
+   pipe_resource_reference(&surf->texture, NULL);
    FREE(surf);
 }
 
 
 /**
  * Geta pipe_transfer object which is used for moving data in/out of
- * a texture object.
- * \param face  one of PIPE_TEX_FACE_x or 0
- * \param level  texture mipmap level
- * \param zslice  2D slice of a 3D texture
- * \param usage  one of PIPE_TRANSFER_READ/WRITE/READ_WRITE
- * \param x  X position of region to read/write
- * \param y  Y position of region to read/write
- * \param width  width of region to read/write
- * \param height  height of region to read/write
+ * a resource object.
+ * \param pipe  rendering context
+ * \param resource  the resource to transfer in/out of
+ * \param level  which mipmap level
+ * \param usage  bitmask of PIPE_TRANSFER_x flags
+ * \param box  the 1D/2D/3D region of interest
  */
-static struct pipe_transfer *
-softpipe_get_tex_transfer(struct pipe_screen *screen,
-                          struct pipe_texture *texture,
-                          unsigned face, unsigned level, unsigned zslice,
-                          enum pipe_transfer_usage usage,
-                          unsigned x, unsigned y, unsigned w, unsigned h)
+static void *
+softpipe_transfer_map(struct pipe_context *pipe,
+                      struct pipe_resource *resource,
+                      unsigned level,
+                      unsigned usage,
+                      const struct pipe_box *box,
+                      struct pipe_transfer **transfer)
 {
-   struct softpipe_texture *sptex = softpipe_texture(texture);
+   struct sw_winsys *winsys = softpipe_screen(pipe->screen)->winsys;
+   struct softpipe_resource *spr = softpipe_resource(resource);
    struct softpipe_transfer *spt;
+   struct pipe_transfer *pt;
+   enum pipe_format format = resource->format;
+   uint8_t *map;
 
-   assert(texture);
-   assert(level <= texture->last_level);
+   assert(resource);
+   assert(level <= resource->last_level);
 
    /* make sure the requested region is in the image bounds */
-   assert(x + w <= u_minify(texture->width0, level));
-   assert(y + h <= u_minify(texture->height0, level));
-
-   spt = CALLOC_STRUCT(softpipe_transfer);
-   if (spt) {
-      struct pipe_transfer *pt = &spt->base;
-      int nblocksy = util_format_get_nblocksy(texture->format, u_minify(texture->height0, level));
-      pipe_texture_reference(&pt->texture, texture);
-      pt->x = x;
-      pt->y = y;
-      pt->width = w;
-      pt->height = h;
-      pt->stride = sptex->stride[level];
-      pt->usage = usage;
-      pt->face = face;
-      pt->level = level;
-      pt->zslice = zslice;
-
-      spt->offset = sptex->level_offset[level];
-
-      if (texture->target == PIPE_TEXTURE_CUBE) {
-         spt->offset += face * nblocksy * pt->stride;
+   assert(box->x + box->width <= (int) u_minify(resource->width0, level));
+   if (resource->target == PIPE_TEXTURE_1D_ARRAY) {
+      assert(box->y + box->height <= (int) resource->array_size);
+   }
+   else {
+      assert(box->y + box->height <= (int) u_minify(resource->height0, level));
+      if (resource->target == PIPE_TEXTURE_2D_ARRAY) {
+         assert(box->z + box->depth <= (int) resource->array_size);
+      }
+      else if (resource->target == PIPE_TEXTURE_CUBE) {
+         assert(box->z < 6);
       }
-      else if (texture->target == PIPE_TEXTURE_3D) {
-         spt->offset += zslice * nblocksy * pt->stride;
+      else if (resource->target == PIPE_TEXTURE_CUBE_ARRAY) {
+         assert(box->z <= (int) resource->array_size);
       }
       else {
-         assert(face == 0);
-         assert(zslice == 0);
+         assert(box->z + box->depth <= (int) u_minify(resource->depth0, level));
       }
-      return pt;
    }
-   return NULL;
-}
 
-
-/**
- * Free a pipe_transfer object which was created with
- * softpipe_get_tex_transfer().
- */
-static void 
-softpipe_tex_transfer_destroy(struct pipe_transfer *transfer)
-{
-   /* Effectively do the texture_update work here - if texture images
-    * needed post-processing to put them into hardware layout, this is
-    * where it would happen.  For softpipe, nothing to do.
+   /*
+    * Transfers, like other pipe operations, must happen in order, so flush the
+    * context if necessary.
     */
-   assert (transfer->texture);
-   pipe_texture_reference(&transfer->texture, NULL);
-   FREE(transfer);
-}
+   if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
+      boolean read_only = !(usage & PIPE_TRANSFER_WRITE);
+      boolean do_not_block = !!(usage & PIPE_TRANSFER_DONTBLOCK);
+      if (!softpipe_flush_resource(pipe, resource,
+                                   level, box->depth > 1 ? -1 : box->z,
+                                   0, /* flush_flags */
+                                   read_only,
+                                   TRUE, /* cpu_access */
+                                   do_not_block)) {
+         /*
+          * It would have blocked, but state tracker requested no to.
+          */
+         assert(do_not_block);
+         return NULL;
+      }
+   }
 
+   spt = CALLOC_STRUCT(softpipe_transfer);
+   if (!spt)
+      return NULL;
 
-/**
- * Create memory mapping for given pipe_transfer object.
- */
-static void *
-softpipe_transfer_map( struct pipe_screen *screen,
-                       struct pipe_transfer *transfer )
-{
-   ubyte *map, *xfer_map;
-   struct softpipe_texture *spt;
-   enum pipe_format format;
+   pt = &spt->base;
 
-   assert(transfer->texture);
-   spt = softpipe_texture(transfer->texture);
-   format = transfer->texture->format;
+   pipe_resource_reference(&pt->resource, resource);
+   pt->level = level;
+   pt->usage = usage;
+   pt->box = *box;
+   pt->stride = spr->stride[level];
+   pt->layer_stride = spr->img_stride[level];
 
-   if (spt->dt) {
-      /* display target */
-      struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
+   spt->offset = softpipe_get_tex_image_offset(spr, level, box->z);
 
-      map = winsys->displaytarget_map(winsys, spt->dt,
-                                      pipe_transfer_buffer_flags(transfer));
-      if (map == NULL)
-         return NULL;
+   spt->offset +=
+         box->y / util_format_get_blockheight(format) * spt->base.stride +
+         box->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
+
+   /* resources backed by display target treated specially:
+    */
+   if (spr->dt) {
+      map = winsys->displaytarget_map(winsys, spr->dt, usage);
    }
    else {
-      map = spt->data;
-      if (map == NULL)
-         return NULL;
+      map = spr->data;
    }
 
-   /* May want to different things here depending on read/write nature
-    * of the map:
-    */
-   if (transfer->texture && (transfer->usage & PIPE_TRANSFER_WRITE)) {
-      /* Do something to notify sharing contexts of a texture change.
-       * In softpipe, that would mean flushing the texture cache.
-       */
-      softpipe_screen(screen)->timestamp++;
+   if (!map) {
+      pipe_resource_reference(&pt->resource, NULL);
+      FREE(spt);
+      return NULL;
    }
 
-   xfer_map = map + softpipe_transfer(transfer)->offset +
-      transfer->y / util_format_get_blockheight(format) * transfer->stride +
-      transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
-   /*printf("map = %p  xfer map = %p\n", map, xfer_map);*/
-   return xfer_map;
+   *transfer = pt;
+   return map + spt->offset;
 }
 
 
@@ -374,96 +454,84 @@ softpipe_transfer_map( struct pipe_screen *screen,
  * Unmap memory mapping for given pipe_transfer object.
  */
 static void
-softpipe_transfer_unmap(struct pipe_screen *screen,
+softpipe_transfer_unmap(struct pipe_context *pipe,
                         struct pipe_transfer *transfer)
 {
-   struct softpipe_texture *spt;
+   struct softpipe_resource *spr;
 
-   assert(transfer->texture);
-   spt = softpipe_texture(transfer->texture);
+   assert(transfer->resource);
+   spr = softpipe_resource(transfer->resource);
 
-   if (spt->dt) {
+   if (spr->dt) {
       /* display target */
-      struct sw_winsys *winsys = softpipe_screen(screen)->winsys;
-      winsys->displaytarget_unmap(winsys, spt->dt);
+      struct sw_winsys *winsys = softpipe_screen(pipe->screen)->winsys;
+      winsys->displaytarget_unmap(winsys, spr->dt);
    }
 
    if (transfer->usage & PIPE_TRANSFER_WRITE) {
       /* Mark the texture as dirty to expire the tile caches. */
-      spt->timestamp++;
+      spr->timestamp++;
    }
-}
 
+   pipe_resource_reference(&transfer->resource, NULL);
+   FREE(transfer);
+}
 
-static struct pipe_video_surface*
-softpipe_video_surface_create(struct pipe_screen *screen,
-                              enum pipe_video_chroma_format chroma_format,
-                              unsigned width, unsigned height)
+/**
+ * Create buffer which wraps user-space data.
+ */
+struct pipe_resource *
+softpipe_user_buffer_create(struct pipe_screen *screen,
+                            void *ptr,
+                            unsigned bytes,
+                           unsigned bind_flags)
 {
-   struct softpipe_video_surface *sp_vsfc;
-   struct pipe_texture template;
-
-   assert(screen);
-   assert(width && height);
+   struct softpipe_resource *spr;
 
-   sp_vsfc = CALLOC_STRUCT(softpipe_video_surface);
-   if (!sp_vsfc)
+   spr = CALLOC_STRUCT(softpipe_resource);
+   if (!spr)
       return NULL;
 
-   pipe_reference_init(&sp_vsfc->base.reference, 1);
-   sp_vsfc->base.screen = screen;
-   sp_vsfc->base.chroma_format = chroma_format;
-   /*sp_vsfc->base.surface_format = PIPE_VIDEO_SURFACE_FORMAT_VUYA;*/
-   sp_vsfc->base.width = width;
-   sp_vsfc->base.height = height;
-
-   memset(&template, 0, sizeof(struct pipe_texture));
-   template.target = PIPE_TEXTURE_2D;
-   template.format = PIPE_FORMAT_B8G8R8X8_UNORM;
-   template.last_level = 0;
-   /* vl_mpeg12_mc_renderer expects this when it's initialized with pot_buffers=true */
-   template.width0 = util_next_power_of_two(width);
-   template.height0 = util_next_power_of_two(height);
-   template.depth0 = 1;
-   template.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER | PIPE_TEXTURE_USAGE_RENDER_TARGET;
-
-   sp_vsfc->tex = screen->texture_create(screen, &template);
-   if (!sp_vsfc->tex) {
-      FREE(sp_vsfc);
-      return NULL;
-   }
-
-   return &sp_vsfc->base;
+   pipe_reference_init(&spr->base.reference, 1);
+   spr->base.screen = screen;
+   spr->base.format = PIPE_FORMAT_R8_UNORM; /* ?? */
+   spr->base.bind = bind_flags;
+   spr->base.usage = PIPE_USAGE_IMMUTABLE;
+   spr->base.flags = 0;
+   spr->base.width0 = bytes;
+   spr->base.height0 = 1;
+   spr->base.depth0 = 1;
+   spr->base.array_size = 1;
+   spr->userBuffer = TRUE;
+   spr->data = ptr;
+
+   return &spr->base;
 }
 
 
-static void
-softpipe_video_surface_destroy(struct pipe_video_surface *vsfc)
+void
+softpipe_init_texture_funcs(struct pipe_context *pipe)
 {
-   struct softpipe_video_surface *sp_vsfc = softpipe_video_surface(vsfc);
+   pipe->transfer_map = softpipe_transfer_map;
+   pipe->transfer_unmap = softpipe_transfer_unmap;
 
-   pipe_texture_reference(&sp_vsfc->tex, NULL);
-   FREE(sp_vsfc);
+   pipe->transfer_flush_region = u_default_transfer_flush_region;
+   pipe->buffer_subdata = u_default_buffer_subdata;
+   pipe->texture_subdata = u_default_texture_subdata;
+
+   pipe->create_surface = softpipe_create_surface;
+   pipe->surface_destroy = softpipe_surface_destroy;
+   pipe->clear_texture = util_clear_texture;
 }
 
 
 void
 softpipe_init_screen_texture_funcs(struct pipe_screen *screen)
 {
-   screen->texture_create = softpipe_texture_create;
-   screen->texture_destroy = softpipe_texture_destroy;
-
-   screen->get_tex_surface = softpipe_get_tex_surface;
-   screen->tex_surface_destroy = softpipe_tex_surface_destroy;
-
-   screen->get_tex_transfer = softpipe_get_tex_transfer;
-   screen->tex_transfer_destroy = softpipe_tex_transfer_destroy;
-   screen->transfer_map = softpipe_transfer_map;
-   screen->transfer_unmap = softpipe_transfer_unmap;
-
-   screen->video_surface_create = softpipe_video_surface_create;
-   screen->video_surface_destroy = softpipe_video_surface_destroy;
+   screen->resource_create = softpipe_resource_create;
+   screen->resource_create_front = softpipe_resource_create_front;
+   screen->resource_destroy = softpipe_resource_destroy;
+   screen->resource_from_handle = softpipe_resource_from_handle;
+   screen->resource_get_handle = softpipe_resource_get_handle;
+   screen->can_create_resource = softpipe_can_create_resource;
 }
-
-
-