xserver mesa git update 4 July 2011

3 files changed, 404 insertions, 373 deletions

diff --git a/mesalib/src/SConscript b/mesalib/src/SConscript
index 7b614daee..6d7bd6cd6 100644
--- a/mesalib/src/SConscript
+++ b/mesalib/src/SConscript
@@ -22,6 +22,7 @@ SConscript('mesa/SConscript')
 SConscript('mapi/vgapi/SConscript')
 
 if env['platform'] != 'embedded':
+    SConscript('glx/SConscript')
     SConscript('egl/main/SConscript')
     SConscript('glu/sgi/SConscript')
     SConscript('glut/glx/SConscript')
diff --git a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c
index e2e7829fb..e50db6d67 100644
--- a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c
+++ b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c
@@ -1,251 +1,269 @@
-/**************************************************************************

- * 

- * 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.

- * 

- **************************************************************************/

-

-/* Helper utility for uploading user buffers & other data, and

- * coalescing small buffers into larger ones.

- */

-

-#include "pipe/p_defines.h"

-#include "util/u_inlines.h"

-#include "pipe/p_context.h"

-#include "util/u_memory.h"

-#include "util/u_math.h"

-

-#include "u_upload_mgr.h"

-

-

-struct u_upload_mgr {

-   struct pipe_context *pipe;

-

-   unsigned default_size;  /* Minimum size of the upload buffer, in bytes. */

-   unsigned alignment;     /* Alignment of each sub-allocation. */

-   unsigned bind;          /* Bitmask of PIPE_BIND_* flags. */

-

-   struct pipe_resource *buffer;   /* Upload buffer. */

-   struct pipe_transfer *transfer; /* Transfer object for the upload buffer. */

-   uint8_t *map;    /* Pointer to the mapped upload buffer. */

-   unsigned size;   /* Actual size of the upload buffer. */

-   unsigned offset; /* Aligned offset to the upload buffer, pointing

-                     * at the first unused byte. */

-};

-

-

-struct u_upload_mgr *u_upload_create( struct pipe_context *pipe,

-                                      unsigned default_size,

-                                      unsigned alignment,

-                                      unsigned bind )

-{

-   struct u_upload_mgr *upload = CALLOC_STRUCT( u_upload_mgr );

-   if (!upload)

-      return NULL;

-

-   upload->pipe = pipe;

-   upload->default_size = default_size;

-   upload->alignment = alignment;

-   upload->bind = bind;

-   upload->buffer = NULL;

-

-   return upload;

-}

-

-/* Release old buffer.

- * 

- * This must usually be called prior to firing the command stream

- * which references the upload buffer, as many memory managers will

- * cause subsequent maps of a fired buffer to wait.

- *

- * Can improve this with a change to pipe_buffer_write to use the

- * DONT_WAIT bit, but for now, it's easiest just to grab a new buffer.

- */

-void u_upload_flush( struct u_upload_mgr *upload )

-{

-   /* Unmap and unreference the upload buffer. */

-   if (upload->transfer) {

-      if (upload->offset) {

-         pipe_buffer_flush_mapped_range(upload->pipe, upload->transfer,

-                                        0, upload->offset);

-      }

-      pipe_transfer_unmap(upload->pipe, upload->transfer);

-      pipe_transfer_destroy(upload->pipe, upload->transfer);

-      upload->transfer = NULL;

-   }

-   pipe_resource_reference( &upload->buffer, NULL );

-   upload->size = 0;

-}

-

-

-void u_upload_destroy( struct u_upload_mgr *upload )

-{

-   u_upload_flush( upload );

-   FREE( upload );

-}

-

-

-static enum pipe_error 

-u_upload_alloc_buffer( struct u_upload_mgr *upload,

-                       unsigned min_size )

-{

-   unsigned size;

-

-   /* Release the old buffer, if present:

-    */

-   u_upload_flush( upload );

-

-   /* Allocate a new one: 

-    */

-   size = align(MAX2(upload->default_size, min_size), 4096);

-

-   upload->buffer = pipe_buffer_create( upload->pipe->screen,

-                                        upload->bind,

-                                        PIPE_USAGE_STREAM,

-                                        size );

-   if (upload->buffer == NULL) 

-      goto fail;

-

-   /* Map the new buffer. */

-   upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer,

-                                       0, size,

-                                       PIPE_TRANSFER_WRITE |

-                                       PIPE_TRANSFER_FLUSH_EXPLICIT,

-                                       &upload->transfer);

-   

-   upload->size = size;

-

-   upload->offset = 0;

-   return 0;

-

-fail:

-   if (upload->buffer)

-      pipe_resource_reference( &upload->buffer, NULL );

-

-   return PIPE_ERROR_OUT_OF_MEMORY;

-}

-

-enum pipe_error u_upload_alloc( struct u_upload_mgr *upload,

-                                unsigned min_out_offset,

-                                unsigned size,

-                                unsigned *out_offset,

-                                struct pipe_resource **outbuf,

-                                boolean *flushed,

-                                void **ptr )

-{

-   unsigned alloc_size = align( size, upload->alignment );

-   unsigned alloc_offset = align(min_out_offset, upload->alignment);

-   unsigned offset;

-

-   /* Make sure we have enough space in the upload buffer

-    * for the sub-allocation. */

-   if (MAX2(upload->offset, alloc_offset) + alloc_size > upload->size) {

-      enum pipe_error ret = u_upload_alloc_buffer(upload,

-                                                  alloc_offset + alloc_size);

-      if (ret)

-         return ret;

-

-      *flushed = TRUE;

-   } else {

-      *flushed = FALSE;

-   }

-

-   offset = MAX2(upload->offset, alloc_offset);

-

-   assert(offset < upload->buffer->width0);

-   assert(offset + size <= upload->buffer->width0);

-   assert(size);

-

-   /* Emit the return values: */

-   *ptr = upload->map + offset;

-   pipe_resource_reference( outbuf, upload->buffer );

-   *out_offset = offset;

-

-   upload->offset = offset + alloc_size;

-   return PIPE_OK;

-}

-

-enum pipe_error u_upload_data( struct u_upload_mgr *upload,

-                               unsigned min_out_offset,

-                               unsigned size,

-                               const void *data,

-                               unsigned *out_offset,

-                               struct pipe_resource **outbuf,

-                               boolean *flushed )

-{

-   uint8_t *ptr;

-   enum pipe_error ret = u_upload_alloc(upload, min_out_offset, size,

-                                        out_offset, outbuf, flushed,

-                                        (void**)&ptr);

-   if (ret)

-      return ret;

-

-   memcpy(ptr, data, size);

-   return PIPE_OK;

-}

-

-

-/* As above, but upload the full contents of a buffer.  Useful for

- * uploading user buffers, avoids generating an explosion of GPU

- * buffers if you have an app that does lots of small vertex buffer

- * renders or DrawElements calls.

- */

-enum pipe_error u_upload_buffer( struct u_upload_mgr *upload,

-                                 unsigned min_out_offset,

-                                 unsigned offset,

-                                 unsigned size,

-                                 struct pipe_resource *inbuf,

-                                 unsigned *out_offset,

-                                 struct pipe_resource **outbuf,

-                                 boolean *flushed )

-{

-   enum pipe_error ret = PIPE_OK;

-   struct pipe_transfer *transfer = NULL;

-   const char *map = NULL;

-

-   map = (const char *)pipe_buffer_map(upload->pipe,

-				       inbuf,

-				       PIPE_TRANSFER_READ,

-				       &transfer);

-

-   if (map == NULL) {

-      ret = PIPE_ERROR_OUT_OF_MEMORY;

-      goto done;

-   }

-

-   if (0)

-      debug_printf("upload ptr %p ofs %d sz %d\n", map, offset, size);

-

-   ret = u_upload_data( upload,

-                        min_out_offset,

-                        size,

-                        map + offset,

-                        out_offset,

-                        outbuf, flushed );

-

-done:

-   if (map)

-      pipe_buffer_unmap( upload->pipe, transfer );

-

-   return ret;

-}

+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+/* Helper utility for uploading user buffers & other data, and
+ * coalescing small buffers into larger ones.
+ */
+
+#include "pipe/p_defines.h"
+#include "util/u_inlines.h"
+#include "pipe/p_context.h"
+#include "util/u_memory.h"
+#include "util/u_math.h"
+
+#include "u_upload_mgr.h"
+
+
+struct u_upload_mgr {
+   struct pipe_context *pipe;
+
+   unsigned default_size;  /* Minimum size of the upload buffer, in bytes. */
+   unsigned alignment;     /* Alignment of each sub-allocation. */
+   unsigned bind;          /* Bitmask of PIPE_BIND_* flags. */
+
+   struct pipe_resource *buffer;   /* Upload buffer. */
+   struct pipe_transfer *transfer; /* Transfer object for the upload buffer. */
+   uint8_t *map;    /* Pointer to the mapped upload buffer. */
+   unsigned size;   /* Actual size of the upload buffer. */
+   unsigned offset; /* Aligned offset to the upload buffer, pointing
+                     * at the first unused byte. */
+};
+
+
+struct u_upload_mgr *u_upload_create( struct pipe_context *pipe,
+                                      unsigned default_size,
+                                      unsigned alignment,
+                                      unsigned bind )
+{
+   struct u_upload_mgr *upload = CALLOC_STRUCT( u_upload_mgr );
+   if (!upload)
+      return NULL;
+
+   upload->pipe = pipe;
+   upload->default_size = default_size;
+   upload->alignment = alignment;
+   upload->bind = bind;
+   upload->buffer = NULL;
+
+   return upload;
+}
+
+void u_upload_unmap( struct u_upload_mgr *upload )
+{
+   if (upload->transfer) {
+      struct pipe_box *box = &upload->transfer->box;
+      if (upload->offset > box->x) {
+
+         pipe_buffer_flush_mapped_range(upload->pipe, upload->transfer,
+                                        box->x, upload->offset - box->x);
+      }
+      pipe_transfer_unmap(upload->pipe, upload->transfer);
+      pipe_transfer_destroy(upload->pipe, upload->transfer);
+      upload->transfer = NULL;
+      upload->map = NULL;
+   }
+}
+
+/* Release old buffer.
+ * 
+ * This must usually be called prior to firing the command stream
+ * which references the upload buffer, as many memory managers will
+ * cause subsequent maps of a fired buffer to wait.
+ *
+ * Can improve this with a change to pipe_buffer_write to use the
+ * DONT_WAIT bit, but for now, it's easiest just to grab a new buffer.
+ */
+void u_upload_flush( struct u_upload_mgr *upload )
+{
+   /* Unmap and unreference the upload buffer. */
+   u_upload_unmap(upload);
+   pipe_resource_reference( &upload->buffer, NULL );
+   upload->size = 0;
+}
+
+
+void u_upload_destroy( struct u_upload_mgr *upload )
+{
+   u_upload_flush( upload );
+   FREE( upload );
+}
+
+
+static enum pipe_error 
+u_upload_alloc_buffer( struct u_upload_mgr *upload,
+                       unsigned min_size )
+{
+   unsigned size;
+
+   /* Release the old buffer, if present:
+    */
+   u_upload_flush( upload );
+
+   /* Allocate a new one: 
+    */
+   size = align(MAX2(upload->default_size, min_size), 4096);
+
+   upload->buffer = pipe_buffer_create( upload->pipe->screen,
+                                        upload->bind,
+                                        PIPE_USAGE_STREAM,
+                                        size );
+   if (upload->buffer == NULL) 
+      goto fail;
+
+   /* Map the new buffer. */
+   upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer,
+                                       0, size,
+                                       PIPE_TRANSFER_WRITE |
+                                       PIPE_TRANSFER_FLUSH_EXPLICIT,
+                                       &upload->transfer);
+   
+   upload->size = size;
+
+   upload->offset = 0;
+   return 0;
+
+fail:
+   if (upload->buffer)
+      pipe_resource_reference( &upload->buffer, NULL );
+
+   return PIPE_ERROR_OUT_OF_MEMORY;
+}
+
+enum pipe_error u_upload_alloc( struct u_upload_mgr *upload,
+                                unsigned min_out_offset,
+                                unsigned size,
+                                unsigned *out_offset,
+                                struct pipe_resource **outbuf,
+                                boolean *flushed,
+                                void **ptr )
+{
+   unsigned alloc_size = align( size, upload->alignment );
+   unsigned alloc_offset = align(min_out_offset, upload->alignment);
+   unsigned offset;
+
+   /* Make sure we have enough space in the upload buffer
+    * for the sub-allocation. */
+   if (MAX2(upload->offset, alloc_offset) + alloc_size > upload->size) {
+      enum pipe_error ret = u_upload_alloc_buffer(upload,
+                                                  alloc_offset + alloc_size);
+      if (ret)
+         return ret;
+
+      *flushed = TRUE;
+   } else {
+      *flushed = FALSE;
+   }
+
+   offset = MAX2(upload->offset, alloc_offset);
+
+   if (!upload->map) {
+      upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer,
+					  offset, upload->size - offset,
+					  PIPE_TRANSFER_WRITE |
+					  PIPE_TRANSFER_FLUSH_EXPLICIT |
+					  PIPE_TRANSFER_UNSYNCHRONIZED,
+					  &upload->transfer);
+   }
+
+   assert(offset < upload->buffer->width0);
+   assert(offset + size <= upload->buffer->width0);
+   assert(size);
+
+   /* Emit the return values: */
+   *ptr = upload->map + offset;
+   pipe_resource_reference( outbuf, upload->buffer );
+   *out_offset = offset;
+
+   upload->offset = offset + alloc_size;
+   return PIPE_OK;
+}
+
+enum pipe_error u_upload_data( struct u_upload_mgr *upload,
+                               unsigned min_out_offset,
+                               unsigned size,
+                               const void *data,
+                               unsigned *out_offset,
+                               struct pipe_resource **outbuf,
+                               boolean *flushed )
+{
+   uint8_t *ptr;
+   enum pipe_error ret = u_upload_alloc(upload, min_out_offset, size,
+                                        out_offset, outbuf, flushed,
+                                        (void**)&ptr);
+   if (ret)
+      return ret;
+
+   memcpy(ptr, data, size);
+   return PIPE_OK;
+}
+
+
+/* As above, but upload the full contents of a buffer.  Useful for
+ * uploading user buffers, avoids generating an explosion of GPU
+ * buffers if you have an app that does lots of small vertex buffer
+ * renders or DrawElements calls.
+ */
+enum pipe_error u_upload_buffer( struct u_upload_mgr *upload,
+                                 unsigned min_out_offset,
+                                 unsigned offset,
+                                 unsigned size,
+                                 struct pipe_resource *inbuf,
+                                 unsigned *out_offset,
+                                 struct pipe_resource **outbuf,
+                                 boolean *flushed )
+{
+   enum pipe_error ret = PIPE_OK;
+   struct pipe_transfer *transfer = NULL;
+   const char *map = NULL;
+
+   map = (const char *)pipe_buffer_map_range(upload->pipe,
+                                             inbuf,
+                                             offset, size,
+                                             PIPE_TRANSFER_READ,
+                                             &transfer);
+
+   if (map == NULL) {
+      ret = PIPE_ERROR_OUT_OF_MEMORY;
+      goto done;
+   }
+
+   if (0)
+      debug_printf("upload ptr %p ofs %d sz %d\n", map, offset, size);
+
+   ret = u_upload_data( upload,
+                        min_out_offset,
+                        size,
+                        map,
+                        out_offset,
+                        outbuf, flushed );
+
+done:
+   if (map)
+      pipe_buffer_unmap( upload->pipe, transfer );
+
+   return ret;
+}
diff --git a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.h b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.h
index ed13fbe82..989151398 100644
--- a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.h
+++ b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.h
@@ -1,122 +1,134 @@
-/**************************************************************************

- * 

- * 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.

- * 

- **************************************************************************/

-

-/* Helper utility for uploading user buffers & other data, and

- * coalescing small buffers into larger ones.

- */

-

-#ifndef U_UPLOAD_MGR_H

-#define U_UPLOAD_MGR_H

-

-#include "pipe/p_compiler.h"

-

-struct pipe_context;

-struct pipe_resource;

-

-

-/**

- * Create the upload manager.

- *

- * \param pipe          Pipe driver.

- * \param default_size  Minimum size of the upload buffer, in bytes.

- * \param alignment     Alignment of each suballocation in the upload buffer.

- * \param bind          Bitmask of PIPE_BIND_* flags.

- */

-struct u_upload_mgr *u_upload_create( struct pipe_context *pipe,

-                                      unsigned default_size,

-                                      unsigned alignment,

-                                      unsigned bind );

-

-/**

- * Destroy the upload manager.

- */

-void u_upload_destroy( struct u_upload_mgr *upload );

-

-/* Unmap and release old buffer.

- * 

- * This must usually be called prior to firing the command stream

- * which references the upload buffer, as many memory managers either

- * don't like firing a mapped buffer or cause subsequent maps of a

- * fired buffer to wait.  For now, it's easiest just to grab a new

- * buffer.

- */

-void u_upload_flush( struct u_upload_mgr *upload );

-

-/**

- * Sub-allocate new memory from the upload buffer.

- *

- * \param upload           Upload manager

- * \param min_out_offset   Minimum offset that should be returned in out_offset.

- * \param size             Size of the allocation.

- * \param out_offset       Pointer to where the new buffer offset will be returned.

- * \param outbuf           Pointer to where the upload buffer will be returned.

- * \param flushed          Whether the upload buffer was flushed.

- * \param ptr              Pointer to the allocated memory that is returned.

- */

-enum pipe_error u_upload_alloc( struct u_upload_mgr *upload,

-                                unsigned min_out_offset,

-                                unsigned size,

-                                unsigned *out_offset,

-                                struct pipe_resource **outbuf,

-                                boolean *flushed,

-                                void **ptr );

-

-

-/**

- * Allocate and write data to the upload buffer.

- *

- * Same as u_upload_alloc, but in addition to that, it copies "data"

- * to the pointer returned from u_upload_alloc.

- */

-enum pipe_error u_upload_data( struct u_upload_mgr *upload,

-                               unsigned min_out_offset,

-                               unsigned size,

-                               const void *data,

-                               unsigned *out_offset,

-                               struct pipe_resource **outbuf,

-                               boolean *flushed );

-

-

-/**

- * Allocate and copy an input buffer to the upload buffer.

- *

- * Same as u_upload_data, except that the input data comes from a buffer

- * instead of a user pointer.

- */

-enum pipe_error u_upload_buffer( struct u_upload_mgr *upload,

-                                 unsigned min_out_offset,

-                                 unsigned offset,

-                                 unsigned size,

-                                 struct pipe_resource *inbuf,

-                                 unsigned *out_offset,

-                                 struct pipe_resource **outbuf,

-                                 boolean *flushed );

-

-

-

-#endif

-

+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+/* Helper utility for uploading user buffers & other data, and
+ * coalescing small buffers into larger ones.
+ */
+
+#ifndef U_UPLOAD_MGR_H
+#define U_UPLOAD_MGR_H
+
+#include "pipe/p_compiler.h"
+
+struct pipe_context;
+struct pipe_resource;
+
+
+/**
+ * Create the upload manager.
+ *
+ * \param pipe          Pipe driver.
+ * \param default_size  Minimum size of the upload buffer, in bytes.
+ * \param alignment     Alignment of each suballocation in the upload buffer.
+ * \param bind          Bitmask of PIPE_BIND_* flags.
+ */
+struct u_upload_mgr *u_upload_create( struct pipe_context *pipe,
+                                      unsigned default_size,
+                                      unsigned alignment,
+                                      unsigned bind );
+
+/**
+ * Destroy the upload manager.
+ */
+void u_upload_destroy( struct u_upload_mgr *upload );
+
+/* Unmap and release old upload buffer.
+ * 
+ * This is like u_upload_unmap() except the upload buffer is released for
+ * recycling. This should be called on real hardware flushes on systems
+ * that don't support the PIPE_TRANSFER_UNSYNCHRONIZED flag, as otherwise
+ * the next u_upload_buffer will cause a sync on the buffer.
+ */
+
+void u_upload_flush( struct u_upload_mgr *upload );
+
+/**
+ * Unmap upload buffer
+ *
+ * \param upload           Upload manager
+ *
+ * This must usually be called prior to firing the command stream
+ * which references the upload buffer, as many memory managers either
+ * don't like firing a mapped buffer or cause subsequent maps of a
+ * fired buffer to wait.
+ */
+void u_upload_unmap( struct u_upload_mgr *upload );
+
+/**
+ * Sub-allocate new memory from the upload buffer.
+ *
+ * \param upload           Upload manager
+ * \param min_out_offset   Minimum offset that should be returned in out_offset.
+ * \param size             Size of the allocation.
+ * \param out_offset       Pointer to where the new buffer offset will be returned.
+ * \param outbuf           Pointer to where the upload buffer will be returned.
+ * \param flushed          Whether the upload buffer was flushed.
+ * \param ptr              Pointer to the allocated memory that is returned.
+ */
+enum pipe_error u_upload_alloc( struct u_upload_mgr *upload,
+                                unsigned min_out_offset,
+                                unsigned size,
+                                unsigned *out_offset,
+                                struct pipe_resource **outbuf,
+                                boolean *flushed,
+                                void **ptr );
+
+
+/**
+ * Allocate and write data to the upload buffer.
+ *
+ * Same as u_upload_alloc, but in addition to that, it copies "data"
+ * to the pointer returned from u_upload_alloc.
+ */
+enum pipe_error u_upload_data( struct u_upload_mgr *upload,
+                               unsigned min_out_offset,
+                               unsigned size,
+                               const void *data,
+                               unsigned *out_offset,
+                               struct pipe_resource **outbuf,
+                               boolean *flushed );
+
+
+/**
+ * Allocate and copy an input buffer to the upload buffer.
+ *
+ * Same as u_upload_data, except that the input data comes from a buffer
+ * instead of a user pointer.
+ */
+enum pipe_error u_upload_buffer( struct u_upload_mgr *upload,
+                                 unsigned min_out_offset,
+                                 unsigned offset,
+                                 unsigned size,
+                                 struct pipe_resource *inbuf,
+                                 unsigned *out_offset,
+                                 struct pipe_resource **outbuf,
+                                 boolean *flushed );
+
+
+
+#endif
+