ws/xlib: remove self-knowledge about users of xlib winsys

Several software rasterizers can make use of this winsys, but there
isn't any reason why the winsys itself should know about them.

This change moves that information into the libgl-xlib target.

Need to fix up other targets making use of this winsys.

19 files changed, 96 insertions, 347 deletions

diff --git a/src/gallium/drivers/cell/ppu/cell_public.h b/src/gallium/drivers/cell/ppu/cell_public.h
new file mode 100644
index 0000000..7e2e093
--- /dev/null
+++ b/src/gallium/drivers/cell/ppu/cell_public.h
@@ -0,0 +1,10 @@
+#ifndef CELL_PUBLIC_H
+#define CELL_PUBLIC_H
+
+struct pipe_screen;
+struct sw_winsys;
+
+struct pipe_screen *
+cell_create_screen(struct sw_winsys *winsys);
+
+#endif
diff --git a/src/gallium/drivers/cell/ppu/cell_screen.c b/src/gallium/drivers/cell/ppu/cell_screen.c
index fc04767..31fd963 100644
--- a/src/gallium/drivers/cell/ppu/cell_screen.c
+++ b/src/gallium/drivers/cell/ppu/cell_screen.c
@@ -36,6 +36,7 @@
 #include "cell_screen.h"
 #include "cell_texture.h"
 #include "cell_buffer.h"
+#include "cell_public.h"
 
 #include "state_tracker/sw_winsys.h"
 
diff --git a/src/gallium/drivers/cell/ppu/cell_screen.h b/src/gallium/drivers/cell/ppu/cell_screen.h
index 6a22433..baff9d3 100644
--- a/src/gallium/drivers/cell/ppu/cell_screen.h
+++ b/src/gallium/drivers/cell/ppu/cell_screen.h
@@ -51,8 +51,5 @@ cell_screen( struct pipe_screen *pipe )
    return (struct cell_screen *)pipe;
 }
 
-extern struct pipe_screen *
-cell_create_screen(struct sw_winsys *winsys);
-
 
 #endif /* CELL_SCREEN_H */
diff --git a/src/gallium/drivers/llvmpipe/lp_public.h b/src/gallium/drivers/llvmpipe/lp_public.h
new file mode 100644
index 0000000..ec6b660
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_public.h
@@ -0,0 +1,10 @@
+#ifndef LP_PUBLIC_H
+#define LP_PUBLIC_H
+
+struct pipe_screen;
+struct sw_winsys;
+
+struct pipe_screen *
+llvmpipe_create_screen(struct sw_winsys *winsys);
+
+#endif
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 9bb3043..5093f58 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -38,6 +38,7 @@
 #include "lp_screen.h"
 #include "lp_context.h"
 #include "lp_debug.h"
+#include "lp_public.h"
 
 #include "state_tracker/sw_winsys.h"
 
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.h b/src/gallium/drivers/llvmpipe/lp_screen.h
index 0c86283..f4e62cb 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.h
+++ b/src/gallium/drivers/llvmpipe/lp_screen.h
@@ -76,7 +76,5 @@ llvmpipe_screen( struct pipe_screen *pipe )
 }
 
 
-struct pipe_screen *
-llvmpipe_create_screen(struct sw_winsys *winsys);
 
 #endif /* LP_SCREEN_H */
diff --git a/src/gallium/drivers/softpipe/sp_public.h b/src/gallium/drivers/softpipe/sp_public.h
new file mode 100644
index 0000000..62d0903
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_public.h
@@ -0,0 +1,10 @@
+#ifndef SP_PUBLIC_H
+#define SP_PUBLIC_H
+
+struct pipe_screen;
+struct sw_winsys;
+
+struct pipe_screen *
+softpipe_create_screen(struct sw_winsys *winsys);
+
+#endif
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 44680ea..e0a2ef6 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -36,6 +36,7 @@
 #include "sp_screen.h"
 #include "sp_context.h"
 #include "sp_buffer.h"
+#include "sp_public.h"
 
 
 static const char *
diff --git a/src/gallium/drivers/softpipe/sp_screen.h b/src/gallium/drivers/softpipe/sp_screen.h
index 4d7d8ba..f741454 100644
--- a/src/gallium/drivers/softpipe/sp_screen.h
+++ b/src/gallium/drivers/softpipe/sp_screen.h
@@ -59,12 +59,4 @@ softpipe_screen( struct pipe_screen *pipe )
 
 
 
-/**
- * Create a softpipe screen that uses the
- * given winsys for allocating buffers.
- */
-struct pipe_screen *softpipe_create_screen( struct sw_winsys * );
-
-
-
 #endif /* SP_SCREEN_H */
diff --git a/src/gallium/include/state_tracker/xlib_sw_winsys.h b/src/gallium/include/state_tracker/xlib_sw_winsys.h
index 3cb6794..13dc837 100644
--- a/src/gallium/include/state_tracker/xlib_sw_winsys.h
+++ b/src/gallium/include/state_tracker/xlib_sw_winsys.h
@@ -18,13 +18,17 @@ struct xlib_drawable {
    Drawable drawable;
 };
 
-
+/* This is the interface required by the glx/xlib state tracker.  Why
+ * is it being defined in this file?
+ */
 struct xm_driver {
    struct pipe_screen *(*create_pipe_screen)( Display *display );
 };
 
-/* Called by the libgl-xlib target code to build the rendering stack.
+/* This is the public interface to the ws/xlib module.  Why isn't it
+ * being defined in that directory?
  */
-struct xm_driver *xlib_sw_winsys_init( void );
+struct sw_winsys *xlib_create_sw_winsys( Display *display );
+
 
 #endif
diff --git a/src/gallium/targets/libgl-xlib/xlib.c b/src/gallium/targets/libgl-xlib/xlib.c
index 7cae088..6651bd5 100644
--- a/src/gallium/targets/libgl-xlib/xlib.c
+++ b/src/gallium/targets/libgl-xlib/xlib.c
@@ -34,28 +34,71 @@
 #include "state_tracker/xlib_sw_winsys.h"
 #include "xm_winsys.h"
 #include "util/u_debug.h"
-
+#include "softpipe/sp_public.h"
+#include "llvmpipe/lp_public.h"
+#include "cell/ppu/cell_public.h"
 
 /* advertise OpenGL support */
 PUBLIC const int st_api_OpenGL = 1;
 
-static void _init( void ) __attribute__((constructor));
+
+static struct pipe_screen *
+create_screen( struct sw_winsys *winsys )
+{
+#if defined(GALLIUM_CELL)
+   if (!getenv("GALLIUM_NOCELL")) 
+      return cell_create_screen( winsys );
+#endif
+
+#if defined(GALLIUM_LLVMPIPE)
+   return llvmpipe_create_screen( winsys );
+#endif
+
+   return softpipe_create_screen( winsys );
+}
+
+
+
+static struct pipe_screen *
+xlib_create_screen( Display *display )
+{
+   struct sw_winsys *winsys;
+   struct pipe_screen *screen;
+
+   winsys = xlib_create_sw_winsys( display );
+   if (winsys == NULL)
+      return NULL;
+
+   screen = create_screen(winsys);
+   if (screen == NULL)
+      goto fail;
+
+   return screen;
+
+fail:
+   if (winsys)
+      winsys->destroy( winsys );
+
+   return NULL;
+}
+
+
+struct xm_driver xlib_driver = 
+{
+   .create_pipe_screen = xlib_create_screen,
+};
+
+
+
 
 /* Build the rendering stack.
  */
+static void _init( void ) __attribute__((constructor));
 static void _init( void )
 {
-   struct xm_driver *driver;
-
-   /* Initialize the xlib software winsys.  Later on, once Display and
-    * other parameters are known, this will be used to create the
-    * gallium driver (such as softpipe), etc.
-    */
-   driver = xlib_sw_winsys_init();
-
    /* Initialize the xlib libgl code, pass in the winsys:
     */
-   xmesa_set_driver( driver );
+   xmesa_set_driver( &xlib_driver );
 }
 
 
diff --git a/src/gallium/winsys/xlib/Makefile b/src/gallium/winsys/xlib/Makefile
index bb631b1..68542b4 100644
--- a/src/gallium/winsys/xlib/Makefile
+++ b/src/gallium/winsys/xlib/Makefile
@@ -9,11 +9,7 @@ LIBRARY_INCLUDES = \
 	-I$(TOP)/src/gallium/auxiliary
 
 C_SOURCES = \
-	xlib.c \
-	xlib_cell.c \
-	xlib_sw_winsys.c \
-	xlib_llvmpipe.c \
-	xlib_softpipe.c
+	xlib_sw_winsys.c 
 
 include ../../Makefile.template
 
diff --git a/src/gallium/winsys/xlib/SConscript b/src/gallium/winsys/xlib/SConscript
index 1a1879f..d4009df 100644
--- a/src/gallium/winsys/xlib/SConscript
+++ b/src/gallium/winsys/xlib/SConscript
@@ -18,9 +18,6 @@ if env['platform'] == 'linux' \
     ws_xlib = env.ConvenienceLibrary(
         target = 'ws_xlib',
         source = [
-           'xlib_cell.c',
-           'xlib_llvmpipe.c',
-           'xlib_softpipe.c',
            'xlib_sw_winsys.c',
         ]
     )
diff --git a/src/gallium/winsys/xlib/xlib.c b/src/gallium/winsys/xlib/xlib.c
deleted file mode 100644
index 6ca9e36..0000000
--- a/src/gallium/winsys/xlib/xlib.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 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
- */
-
-#include "xlib.h"
-#include "util/u_debug.h"
-
-struct xm_driver *xlib_sw_winsys_init( void )
-{
-#if defined(GALLIUM_CELL)
-   if (!getenv("GALLIUM_NOCELL")) 
-      return &xlib_cell_driver;
-#endif
-
-#if defined(GALLIUM_LLVMPIPE)
-   return &xlib_llvmpipe_driver;
-#endif
-
-   return &xlib_softpipe_driver;
-}
diff --git a/src/gallium/winsys/xlib/xlib.h b/src/gallium/winsys/xlib/xlib.h
deleted file mode 100644
index 3c20048..0000000
--- a/src/gallium/winsys/xlib/xlib.h
+++ /dev/null
@@ -1,18 +0,0 @@
-
-#ifndef XLIB_H
-#define XLIB_H
-
-#include "pipe/p_compiler.h"
-#include "state_tracker/xlib_sw_winsys.h"
-
-extern struct xm_driver xlib_softpipe_driver;
-extern struct xm_driver xlib_llvmpipe_driver;
-extern struct xm_driver xlib_cell_driver;
-
-struct sw_winsys *xlib_create_sw_winsys( Display *display );
-
-void xlib_sw_display(struct xlib_drawable *xm_buffer,
-                     struct sw_displaytarget *dt);
-
-
-#endif
diff --git a/src/gallium/winsys/xlib/xlib_cell.c b/src/gallium/winsys/xlib/xlib_cell.c
deleted file mode 100644
index d943953..0000000
--- a/src/gallium/winsys/xlib/xlib_cell.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 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
- *   Brian Paul
- */
-
-
-#include "xlib.h"
-
-#if defined(GALLIUM_CELL)
-
-#include "cell/ppu/cell_texture.h"
-#include "cell/ppu/cell_screen.h"
-#include "state_tracker/sw_winsys.h"
-#include "util/u_debug.h"
-
-
-/**
- * Display/copy the image in the surface into the X window specified
- * by the XMesaBuffer.
- */
-static void
-xm_cell_displaytarget_display(struct sw_winsys *ws,
-                              struct sw_displaytarget *dt,
-                              void *context_private)
-{
-   struct xlib_drawable *xlib_drawable = (struct xlib_drawable *)context_private;
-   xlib_sw_display(xlib_drawable, dt);
-}
-
-
-static struct pipe_screen *
-xlib_create_cell_screen( Display *dpy )
-{
-   struct sw_winsys *winsys;
-   struct pipe_screen *screen;
-
-   winsys = xlib_create_sw_winsys( dpy );
-   if (winsys == NULL)
-      return NULL;
-
-   /* Plug in a little cell-specific code:
-    */
-
-   winsys->displaytarget_display = xm_cell_displaytarget_display;
-
-   screen = cell_create_screen(winsys);
-   if (screen == NULL)
-      goto fail;
-
-   return screen;
-
-fail:
-   if (winsys)
-      winsys->destroy( winsys );
-
-   return NULL;
-}
-
-
-struct xm_driver xlib_cell_driver = 
-{
-   .create_pipe_screen = xlib_create_cell_screen,
-};
-
-
-#endif /* GALLIUM_CELL */
diff --git a/src/gallium/winsys/xlib/xlib_llvmpipe.c b/src/gallium/winsys/xlib/xlib_llvmpipe.c
deleted file mode 100644
index 8b66b74..0000000
--- a/src/gallium/winsys/xlib/xlib_llvmpipe.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 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
- *   Brian Paul
- */
-
-
-
-
-#include "xlib.h"
-
-
-#if defined(GALLIUM_LLVMPIPE)
-
-#include "llvmpipe/lp_texture.h"
-#include "llvmpipe/lp_screen.h"
-#include "state_tracker/xlib_sw_winsys.h"
-#include "util/u_debug.h"
-
-static struct pipe_screen *
-xlib_create_llvmpipe_screen( Display *display )
-{
-   struct sw_winsys *winsys;
-   struct pipe_screen *screen;
-
-   winsys = xlib_create_sw_winsys( display );
-   if (winsys == NULL)
-      return NULL;
-
-   screen = llvmpipe_create_screen(winsys);
-   if (screen == NULL)
-      goto fail;
-
-   return screen;
-
-fail:
-   if (winsys)
-      winsys->destroy( winsys );
-
-   return NULL;
-}
-
-
-struct xm_driver xlib_llvmpipe_driver = 
-{
-   .create_pipe_screen = xlib_create_llvmpipe_screen,
-};
-
-
-
-#endif /* GALLIUM_LLVMPIPE */
diff --git a/src/gallium/winsys/xlib/xlib_softpipe.c b/src/gallium/winsys/xlib/xlib_softpipe.c
deleted file mode 100644
index 08b7f08..0000000
--- a/src/gallium/winsys/xlib/xlib_softpipe.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2007 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.
- * 
- * 
- **************************************************************************/
-
-
-#include "xlib.h"
-#include "softpipe/sp_texture.h"
-#include "softpipe/sp_screen.h"
-#include "state_tracker/xlib_sw_winsys.h"
-#include "util/u_debug.h"
-
-static struct pipe_screen *
-xlib_create_softpipe_screen( Display *display )
-{
-   struct sw_winsys *winsys;
-   struct pipe_screen *screen;
-
-   winsys = xlib_create_sw_winsys( display );
-   if (winsys == NULL)
-      return NULL;
-
-   screen = softpipe_create_screen(winsys);
-   if (screen == NULL)
-      goto fail;
-
-   return screen;
-
-fail:
-   if (winsys)
-      winsys->destroy( winsys );
-
-   return NULL;
-}
-
-
-
-
-struct xm_driver xlib_softpipe_driver = 
-{
-   .create_pipe_screen = xlib_create_softpipe_screen,
-};
-
-
-
diff --git a/src/gallium/winsys/xlib/xlib_sw_winsys.c b/src/gallium/winsys/xlib/xlib_sw_winsys.c
index d03e39a..0ee5899 100644
--- a/src/gallium/winsys/xlib/xlib_sw_winsys.c
+++ b/src/gallium/winsys/xlib/xlib_sw_winsys.c
@@ -47,8 +47,6 @@
 
 #include "state_tracker/xlib_sw_winsys.h"
 
-#include "xlib.h"
-
 #include <X11/Xlib.h>
 #include <X11/Xlibint.h>
 #include <X11/Xutil.h>
@@ -274,7 +272,7 @@ xm_displaytarget_destroy(struct sw_winsys *ws,
  * Display/copy the image in the surface into the X window specified
  * by the XMesaBuffer.
  */
-void
+static void
 xlib_sw_display(struct xlib_drawable *xlib_drawable,
                 struct sw_displaytarget *dt)
 {