Lift common winsys functions into pipe's new p_winsys.

1 files changed, 114 insertions, 0 deletions

diff --git a/src/mesa/pipe/p_winsys.h b/src/mesa/pipe/p_winsys.h
new file mode 100644
index 0000000000..c455ebdbbe
--- /dev/null
+++ b/src/mesa/pipe/p_winsys.h
@@ -0,0 +1,114 @@
+/**************************************************************************
+ * 
+ * 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 P_WINSYS_H
+#define P_WINSYS_H
+
+#include "main/mtypes.h"
+
+/* This is the interface that softpipe requires any window system
+ * hosting it to implement.  This is the only include file in softpipe
+ * which is public.
+ */
+
+
+/* Pipe drivers are (meant to be!) independent of both GL and the
+ * window system.  The window system provides a buffer manager and a
+ * set of additional hooks for things like command buffer submission,
+ * etc.
+ *
+ * There clearly has to be some agreement between the window system
+ * driver and the hardware driver about the format of command buffers,
+ * etc.
+ */
+
+struct pipe_buffer_handle;
+
+struct pipe_winsys {
+
+   /* Do any special operations to ensure frontbuffer contents are
+    * displayed, eg copy fake frontbuffer.
+    */
+   void (*flush_frontbuffer)( struct pipe_winsys *sws );
+
+   /* debug output 
+    */
+   void (*printf)( struct pipe_winsys *sws,
+		   const char *, ... );	
+
+
+   /* The buffer manager is modeled after the dri_bugmgr interface,
+    * but this is the subset that softpipe cares about.  Remember that
+    * softpipe gets to choose the interface it needs, and the window
+    * systems must then implement that interface (rather than the
+    * other way around...).
+    *
+    * Softpipe only really wants to make system memory allocations,
+    * right?? 
+    */
+   struct pipe_buffer_handle *(*buffer_create)(struct pipe_winsys *sws, 
+					       unsigned alignment );
+
+   void *(*buffer_map)( struct pipe_winsys *sws, 
+			struct pipe_buffer_handle *buf,
+			unsigned flags );
+   
+   void (*buffer_unmap)( struct pipe_winsys *sws, 
+			 struct pipe_buffer_handle *buf );
+
+   struct pipe_buffer_handle *(*buffer_reference)( struct pipe_winsys *sws,
+						   struct pipe_buffer_handle *buf );
+
+   void (*buffer_unreference)( struct pipe_winsys *sws, 
+			       struct pipe_buffer_handle **buf );
+
+   void (*buffer_data)(struct pipe_winsys *sws, 
+		       struct pipe_buffer_handle *buf,
+		       unsigned size, const void *data );
+
+   void (*buffer_subdata)(struct pipe_winsys *sws, 
+			  struct pipe_buffer_handle *buf,
+			  unsigned long offset, 
+			  unsigned long size, 
+			  const void *data);
+
+   void (*buffer_get_subdata)(struct pipe_winsys *sws, 
+			      struct pipe_buffer_handle *buf,
+			      unsigned long offset, 
+			      unsigned long size, 
+			      void *data);
+
+
+   /* Wait for any hw swapbuffers, etc. to finish: 
+    */
+   void (*wait_idle)( struct pipe_winsys *sws );
+
+};
+
+
+
+#endif /* SP_WINSYS_H */