1 files changed, 160 insertions, 0 deletions
diff --git a/src/gallium/include/pipe/p_winsys.h b/src/gallium/include/pipe/p_winsys.h
new file mode 100644
index 00000000000..1e81eebd782
--- /dev/null
+++ b/src/gallium/include/pipe/p_winsys.h
@@ -0,0 +1,160 @@
+ /**************************************************************************
+ * 
+ * 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 "p_format.h"
+
+/**
+ * \file
+ * This is the interface that Gallium3D requires any window system
+ * hosting it to implement.  This is the only include file in Gallium3D
+ * which is public.
+ */
+
+
+/** Opaque type */
+struct pipe_fence_handle;
+
+struct pipe_surface;
+
+
+/**
+ * Gallium3D 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_winsys
+{
+   /** Returns name of this winsys interface */
+   const char *(*get_name)( struct pipe_winsys *sws );
+
+   /**
+    * Do any special operations to ensure frontbuffer contents are
+    * displayed, eg copy fake frontbuffer.
+    */
+   void (*flush_frontbuffer)( struct pipe_winsys *sws,
+                              struct pipe_surface *surf,
+                              void *context_private );
+
+   /** Debug output */
+   void (*printf)( struct pipe_winsys *sws,
+		   const char *, ... );	
+
+
+   /** allocate a new surface (no context dependency) */
+   struct pipe_surface *(*surface_alloc)(struct pipe_winsys *ws);
+
+   /**
+    * Allocate storage for a pipe_surface.
+    * Returns 0 if succeeds.
+    */
+   int (*surface_alloc_storage)(struct pipe_winsys *ws,
+                                struct pipe_surface *surf,
+                                unsigned width, unsigned height,
+                                enum pipe_format format,
+                                unsigned flags);
+   
+   void (*surface_release)(struct pipe_winsys *ws, struct pipe_surface **s);
+
+   
+   /**
+    * Buffer management. Buffer attributes are mostly fixed over its lifetime.
+    *
+    * Remember that gallium gets to choose the interface it needs, and the
+    * window systems must then implement that interface (rather than the
+    * other way around...).
+    *
+    * usage is a bitmask of PIPE_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This
+    * usage argument is only an optimization hint, not a guarantee, therefore 
+    * proper behavior must be observed in all circumstances.
+    */
+   struct pipe_buffer *(*buffer_create)( struct pipe_winsys *sws, 
+					        unsigned alignment,
+                                                unsigned usage,
+                                                unsigned size );
+
+   /** Create a buffer that wraps user-space data */
+   struct pipe_buffer *(*user_buffer_create)(struct pipe_winsys *sws, 
+                                                    void *ptr,
+                                                    unsigned bytes);
+
+   /** 
+    * Map the entire data store of a buffer object into the client's address.
+    * flags is bitmask of PIPE_BUFFER_USAGE_CPU_READ/WRITE flags. 
+    */
+   void *(*buffer_map)( struct pipe_winsys *sws, 
+			struct pipe_buffer *buf,
+			unsigned usage );
+   
+   void (*buffer_unmap)( struct pipe_winsys *sws, 
+			 struct pipe_buffer *buf );
+
+   void (*buffer_destroy)( struct pipe_winsys *sws,
+			   struct pipe_buffer *buf );
+
+
+   /** Set ptr = fence, with reference counting */
+   void (*fence_reference)( struct pipe_winsys *sws,
+                            struct pipe_fence_handle **ptr,
+                            struct pipe_fence_handle *fence );
+
+   /**
+    * Checks whether the fence has been signalled.
+    *  
+    * The meaning of flag is pipe-driver specific.
+    *
+    * Returns zero if it has.
+    */
+   int (*fence_signalled)( struct pipe_winsys *sws,
+                           struct pipe_fence_handle *fence,
+                           unsigned flag );
+
+   /**
+    * Wait for the fence to finish.
+    * 
+    * The meaning of flag is pipe-driver specific.
+    * 
+    * Returns zero on success.
+    */
+   int (*fence_finish)( struct pipe_winsys *sws,
+                        struct pipe_fence_handle *fence,
+                        unsigned flag );
+
+
+};
+
+
+
+#endif /* P_WINSYS_H */