From c9ed86a96483063f3d6789ed16645a3dca77d726 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Thu, 1 May 2008 11:07:21 +0100
Subject: gallium: tex surface checkpoint

---
 src/gallium/include/pipe/p_context.h |  6 ------
 src/gallium/include/pipe/p_inlines.h | 31 ++++++++++++++-----------------
 src/gallium/include/pipe/p_screen.h  | 17 ++++++++++++++++-
 src/gallium/include/pipe/p_state.h   |  4 ++++
 src/gallium/include/pipe/p_util.h    |  3 +++
 src/gallium/include/pipe/p_winsys.h  |  2 +-
 6 files changed, 38 insertions(+), 25 deletions(-)

(limited to 'src/gallium/include')

diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index f3a9c2cd8b..0f68f592f7 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -198,12 +198,6 @@ struct pipe_context {
    /*@}*/
 
 
-   /** Called when texture data is changed */
-   void (*texture_update)(struct pipe_context *pipe,
-                          struct pipe_texture *texture,
-                          uint face, uint dirtyLevelsMask);
-
-
    /** Flush rendering (flags = bitmask of PIPE_FLUSH_x tokens) */
    void (*flush)( struct pipe_context *pipe,
                   unsigned flags,
diff --git a/src/gallium/include/pipe/p_inlines.h b/src/gallium/include/pipe/p_inlines.h
index 8eb604e73f..592c3c87c2 100644
--- a/src/gallium/include/pipe/p_inlines.h
+++ b/src/gallium/include/pipe/p_inlines.h
@@ -39,20 +39,6 @@ extern "C" {
 #endif
 
 
-static INLINE void *
-pipe_surface_map(struct pipe_surface *surface)
-{
-   return (char *)surface->winsys->buffer_map( surface->winsys, surface->buffer,
-					       PIPE_BUFFER_USAGE_CPU_WRITE |
-					       PIPE_BUFFER_USAGE_CPU_READ )
-      + surface->offset;
-}
-
-static INLINE void
-pipe_surface_unmap(struct pipe_surface *surface)
-{
-   surface->winsys->buffer_unmap( surface->winsys, surface->buffer );
-}
 
 /**
  * Set 'ptr' to point to 'surf' and update reference counting.
@@ -66,9 +52,20 @@ pipe_surface_reference(struct pipe_surface **ptr, struct pipe_surface *surf)
    if (surf) 
       surf->refcount++;
 
-   if (*ptr /* && --(*ptr)->refcount == 0 */) {
-      struct pipe_winsys *winsys = (*ptr)->winsys;
-      winsys->surface_release(winsys, ptr);
+   if (*ptr) {
+
+      /* There are currently two sorts of surfaces... This needs to be
+       * fixed so that all surfaces are views into a texture.
+       */
+      if ((*ptr)->texture) {
+         struct pipe_screen *screen = (*ptr)->texture->screen;
+         screen->tex_surface_release( screen, ptr );
+      }
+      else {
+         struct pipe_winsys *winsys = (*ptr)->winsys;
+         winsys->surface_release(winsys, ptr);
+      }
+
       assert(!*ptr);
    }
 
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index 26ac99d287..c080579c26 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -96,7 +96,22 @@ struct pipe_screen {
    struct pipe_surface *(*get_tex_surface)(struct pipe_screen *,
                                            struct pipe_texture *texture,
                                            unsigned face, unsigned level,
-                                           unsigned zslice);
+                                           unsigned zslice,
+                                           unsigned usage );
+
+   /* Surfaces allocated by the above must be released here:
+    */
+   void (*tex_surface_release)( struct pipe_screen *,
+                                struct pipe_surface ** );
+   
+
+   void *(*surface_map)( struct pipe_screen *,
+                         struct pipe_surface *surface,
+                         unsigned flags );
+
+   void (*surface_unmap)( struct pipe_screen *,
+                          struct pipe_surface *surface );
+   
 };
 
 
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 912d84e7b9..62b05a403b 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -273,7 +273,11 @@ struct pipe_surface
    unsigned pitch;               /**< in pixels */
    unsigned offset;              /**< offset from start of buffer, in bytes */
    unsigned refcount;
+   unsigned usage;              /**< PIPE_BUFFER_USAGE_*  */
+
    struct pipe_winsys *winsys;   /**< winsys which owns/created the surface */
+
+   struct pipe_texture *texture; /**< optional texture into which this is a view  */
 };
 
 
diff --git a/src/gallium/include/pipe/p_util.h b/src/gallium/include/pipe/p_util.h
index 0e7e246666..0d8ed167b2 100644
--- a/src/gallium/include/pipe/p_util.h
+++ b/src/gallium/include/pipe/p_util.h
@@ -204,7 +204,10 @@ mem_dup(const void *src, uint size)
 #define MIN2( A, B )   ( (A)<(B) ? (A) : (B) )
 #define MAX2( A, B )   ( (A)>(B) ? (A) : (B) )
 
+#ifndef Elements
 #define Elements(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
 #define Offset(TYPE, MEMBER) ((unsigned)&(((TYPE *)NULL)->MEMBER))
 
 /**
diff --git a/src/gallium/include/pipe/p_winsys.h b/src/gallium/include/pipe/p_winsys.h
index 3005ec2d94..87a66b66d7 100644
--- a/src/gallium/include/pipe/p_winsys.h
+++ b/src/gallium/include/pipe/p_winsys.h
@@ -90,7 +90,7 @@ struct pipe_winsys
    
    void (*surface_release)(struct pipe_winsys *ws, struct pipe_surface **s);
 
-   
+
    /**
     * Buffer management. Buffer attributes are mostly fixed over its lifetime.
     *
-- 
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