Add pipe buffer managment functions.

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

6 files changed, 174 insertions, 21 deletions

diff --git a/src/mesa/pipe/softpipe/Makefile b/src/mesa/pipe/softpipe/Makefile
index 04464154e75..0eacfa2182a 100644
--- a/src/mesa/pipe/softpipe/Makefile
+++ b/src/mesa/pipe/softpipe/Makefile
@@ -5,6 +5,7 @@ include $(TOP)/configs/current
 LIBNAME = softpipe
 
 DRIVER_SOURCES = \
+	sp_buffer.c \
 	sp_clear.c \
 	sp_context.c \
 	sp_prim_setup.c \
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;
+}
diff --git a/src/mesa/pipe/softpipe/sp_buffer.h b/src/mesa/pipe/softpipe/sp_buffer.h
new file mode 100644
index 00000000000..9805c5142ad
--- /dev/null
+++ b/src/mesa/pipe/softpipe/sp_buffer.h
@@ -0,0 +1,40 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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 TUNGSTEN GRAPHICS 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 SP_BUFFER_H
+#define SP_BUFFER_H
+
+
+struct softpipe_context;
+
+
+extern void
+sp_init_buffer_functions(struct softpipe_context *sp);
+
+
+#endif /* SP_BUFFER_H */
diff --git a/src/mesa/pipe/softpipe/sp_context.c b/src/mesa/pipe/softpipe/sp_context.c
index 22928f7bd64..9352c7afa71 100644
--- a/src/mesa/pipe/softpipe/sp_context.c
+++ b/src/mesa/pipe/softpipe/sp_context.c
@@ -36,6 +36,7 @@
 #include "sp_context.h"
 #include "sp_clear.h"
 #include "sp_region.h"
+#include "sp_buffer.h"
 #include "sp_state.h"
 #include "sp_surface.h"
 #include "sp_prim_setup.h"
@@ -219,6 +220,7 @@ struct pipe_context *softpipe_create( struct softpipe_winsys *sws )
    assert(softpipe->draw);
    draw_set_setup_stage(softpipe->draw, sp_draw_render_stage(softpipe));
 
+   sp_init_buffer_functions(softpipe);
    sp_init_region_functions(softpipe);
    sp_init_surface_functions(softpipe);
 
diff --git a/src/mesa/pipe/softpipe/sp_region.c b/src/mesa/pipe/softpipe/sp_region.c
index 78a0919ad50..a0ced3eb869 100644
--- a/src/mesa/pipe/softpipe/sp_region.c
+++ b/src/mesa/pipe/softpipe/sp_region.c
@@ -80,7 +80,7 @@ sp_region_alloc(struct pipe_context *pipe,
    region->height = height;     /* needed? */
    region->refcount = 1;
 
-   region->buffer = sp->winsys->create_buffer(sp->winsys, "region", 64 );
+   region->buffer = sp->winsys->create_buffer( sp->winsys, 64 );
 
    sp->winsys->buffer_data( sp->winsys,
 			    region->buffer, 
@@ -259,13 +259,6 @@ sp_region_fill(struct pipe_context *pipe,
 
 
 
-static struct _DriBufferObject *
-sp_region_buffer(struct pipe_context *pipe,
-                    struct pipe_region *region, GLuint flag)
-{
-   return region->buffer;
-}
-
 
 
 void
@@ -279,6 +272,5 @@ sp_init_region_functions(struct softpipe_context *sp)
    sp->pipe.region_data = sp_region_data;
    sp->pipe.region_copy = sp_region_copy;
    sp->pipe.region_fill = sp_region_fill;
-   sp->pipe.region_buffer = sp_region_buffer;
 }
 
diff --git a/src/mesa/pipe/softpipe/sp_winsys.h b/src/mesa/pipe/softpipe/sp_winsys.h
index 43953c648ba..bc6db15d326 100644
--- a/src/mesa/pipe/softpipe/sp_winsys.h
+++ b/src/mesa/pipe/softpipe/sp_winsys.h
@@ -46,7 +46,7 @@
  * etc.
  */
 
-struct softpipe_buffer_handle;
+struct pipe_buffer_handle;
 
 struct softpipe_winsys {
 
@@ -60,34 +60,33 @@ struct softpipe_winsys {
     * Softpipe only really wants to make system memory allocations,
     * right?? 
     */
-   struct softpipe_buffer_handle *(*create_buffer)(struct softpipe_winsys *sws, 
-						   const char *name,
-						   unsigned alignment );
+   struct pipe_buffer_handle *(*create_buffer)(struct softpipe_winsys *sws, 
+					       unsigned alignment );
 
    void *(*buffer_map)( struct softpipe_winsys *sws, 
-			struct softpipe_buffer_handle *buf );
+			struct pipe_buffer_handle *buf );
    
    void (*buffer_unmap)( struct softpipe_winsys *sws, 
-			 struct softpipe_buffer_handle *buf );
+			 struct pipe_buffer_handle *buf );
 
-   struct softpipe_buffer_handle *(*buffer_reference)( struct softpipe_winsys *sws,
-						       struct softpipe_buffer_handle *buf );
+   struct pipe_buffer_handle *(*buffer_reference)( struct softpipe_winsys *sws,
+						   struct pipe_buffer_handle *buf );
 
    void (*buffer_unreference)( struct softpipe_winsys *sws, 
-			       struct softpipe_buffer_handle *buf );
+			       struct pipe_buffer_handle **buf );
 
    void (*buffer_data)(struct softpipe_winsys *sws, 
-		       struct softpipe_buffer_handle *buf,
+		       struct pipe_buffer_handle *buf,
 		       unsigned size, const void *data );
 
    void (*buffer_subdata)(struct softpipe_winsys *sws, 
-			  struct softpipe_buffer_handle *buf,
+			  struct pipe_buffer_handle *buf,
 			  unsigned long offset, 
 			  unsigned long size, 
 			  const void *data);
 
    void (*buffer_get_subdata)(struct softpipe_winsys *sws, 
-			      struct softpipe_buffer_handle *buf,
+			      struct pipe_buffer_handle *buf,
 			      unsigned long offset, 
 			      unsigned long size, 
 			      void *data);