Add pipe buffer managment functions.

The state_tracker driver needs these to implement, eg. pixel buffer objects,
vertex buffer objects.

1 files changed, 119 insertions, 0 deletions

diff --git a/src/mesa/pipe/softpipe/sp_buffer.c b/src/mesa/pipe/softpipe/sp_buffer.c
new file mode 100644
index 00000000000..f3a47184496
--- /dev/null
+++ b/src/mesa/pipe/softpipe/sp_buffer.c
@@ -0,0 +1,119 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * 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 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
+ * THE COPYRIGHT HOLDERS, AUTHORS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * 
+ **************************************************************************/
+/*
+ * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <stdlib.h>
+#include "sp_context.h"
+#include "sp_winsys.h"
+
+
+
+/* Most callbacks map direcly onto winsys operations:
+ */
+static struct pipe_buffer_handle *
+sp_create_buffer(struct pipe_context *pipe, 
+		 unsigned alignment,
+		 unsigned flags)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   return sp->winsys->create_buffer( sp->winsys, alignment );
+}
+
+static void *sp_buffer_map(struct pipe_context *pipe, 
+			   struct pipe_buffer_handle *buf,
+			   unsigned flags )
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   return sp->winsys->buffer_map( sp->winsys, buf );
+}
+
+static void sp_buffer_unmap(struct pipe_context *pipe, 
+			    struct pipe_buffer_handle *buf)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   sp->winsys->buffer_unmap( sp->winsys, buf );
+}
+
+static struct pipe_buffer_handle *
+sp_buffer_reference(struct pipe_context *pipe,
+		    struct pipe_buffer_handle *buf)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   return sp->winsys->buffer_reference( sp->winsys, buf );
+}
+
+static void sp_buffer_unreference(struct pipe_context *pipe, 
+				  struct pipe_buffer_handle **buf)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   sp->winsys->buffer_unreference( sp->winsys, buf );
+}
+
+static void sp_buffer_data(struct pipe_context *pipe, 
+			   struct pipe_buffer_handle *buf,
+			   unsigned size, const void *data )
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   sp->winsys->buffer_data( sp->winsys, buf, size, data );
+}
+
+static void sp_buffer_subdata(struct pipe_context *pipe, 
+				 struct pipe_buffer_handle *buf,
+				 unsigned long offset, 
+				 unsigned long size, 
+				 const void *data)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   sp->winsys->buffer_subdata( sp->winsys, buf, offset, size, data );
+}
+
+static void sp_buffer_get_subdata(struct pipe_context *pipe, 
+				  struct pipe_buffer_handle *buf,
+				  unsigned long offset, 
+				  unsigned long size, 
+				  void *data)
+{
+   struct softpipe_context *sp = softpipe_context( pipe );
+   sp->winsys->buffer_get_subdata( sp->winsys, buf, offset, size, data );
+}
+
+
+void
+sp_init_buffer_functions( struct softpipe_context *sp )
+{
+   sp->pipe.create_buffer = sp_create_buffer;
+   sp->pipe.buffer_map = sp_buffer_map;
+   sp->pipe.buffer_unmap = sp_buffer_unmap;
+   sp->pipe.buffer_reference = sp_buffer_reference;
+   sp->pipe.buffer_unreference = sp_buffer_unreference;
+   sp->pipe.buffer_data = sp_buffer_data;
+   sp->pipe.buffer_subdata = sp_buffer_subdata;
+   sp->pipe.buffer_get_subdata = sp_buffer_get_subdata;
+}