st/egl: Use xlib_sw_winsys in ximage backend.

7 files changed, 45 insertions, 451 deletions

diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.c b/src/gallium/state_trackers/egl/common/egl_g3d.c
index 04268c71c5a..2f7a8a8f7eb 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d.c
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.c
@@ -508,20 +508,6 @@ egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
 }
 
 /**
- * Flush the front buffer of the context's draw surface.
- */
-static void
-egl_g3d_flush_frontbuffer(struct pipe_screen *screen,
-                          struct pipe_surface *surf, void *context_private)
-{
-   struct egl_g3d_context *gctx = egl_g3d_context(context_private);
-   struct egl_g3d_surface *gsurf = egl_g3d_surface(gctx->base.DrawSurface);
-
-   if (gsurf)
-      gsurf->native->flush_frontbuffer(gsurf->native);
-}
-
-/**
  * Re-validate the context.
  */
 static void
@@ -581,7 +567,6 @@ egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy,
       goto fail;
    }
 
-   gdpy->native->screen->flush_frontbuffer = egl_g3d_flush_frontbuffer;
    gdpy->native->screen->update_buffer = egl_g3d_update_buffer;
 
    egl_g3d_init_st(&gdrv->base);
diff --git a/src/gallium/state_trackers/egl/common/native.h b/src/gallium/state_trackers/egl/common/native.h
index 4f9758545ab..4c9217e1a5b 100644
--- a/src/gallium/state_trackers/egl/common/native.h
+++ b/src/gallium/state_trackers/egl/common/native.h
@@ -137,9 +137,6 @@ struct native_display_modeset;
 struct native_display {
    /**
     * The pipe screen of the native display.
-    *
-    * Note that the "flush_frontbuffer" and "update_buffer" callbacks will be
-    * overridden.
     */
    struct pipe_screen *screen;
 
diff --git a/src/gallium/state_trackers/egl/x11/native_x11.c b/src/gallium/state_trackers/egl/x11/native_x11.c
index 3add95d0aca..ef7490503b0 100644
--- a/src/gallium/state_trackers/egl/x11/native_x11.c
+++ b/src/gallium/state_trackers/egl/x11/native_x11.c
@@ -141,16 +141,9 @@ native_create_display(EGLNativeDisplayType dpy)
 
    if (!ndpy) {
       EGLint level = (force_sw) ? _EGL_INFO : _EGL_WARNING;
-      boolean use_shm;
-
-      /*
-       * XXX st/mesa calls pipe_screen::update_buffer in st_validate_state.
-       * When SHM is used, there is a good chance that the shared memory
-       * segment is detached before the softpipe tile cache is flushed.
-       */
-      use_shm = FALSE;
-      _eglLog(level, "use software%s fallback", (use_shm) ? " (SHM)" : "");
-      ndpy = x11_create_ximage_display(dpy, use_shm);
+
+      _eglLog(level, "use software fallback");
+      ndpy = x11_create_ximage_display(dpy);
    }
 
    return ndpy;
diff --git a/src/gallium/state_trackers/egl/x11/native_x11.h b/src/gallium/state_trackers/egl/x11/native_x11.h
index 622ddac5df6..2e71de1885b 100644
--- a/src/gallium/state_trackers/egl/x11/native_x11.h
+++ b/src/gallium/state_trackers/egl/x11/native_x11.h
@@ -29,7 +29,7 @@
 #include "common/native.h"
 
 struct native_display *
-x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm);
+x11_create_ximage_display(EGLNativeDisplayType dpy);
 
 struct native_display *
 x11_create_dri2_display(EGLNativeDisplayType dpy, struct drm_api *api);
diff --git a/src/gallium/state_trackers/egl/x11/native_ximage.c b/src/gallium/state_trackers/egl/x11/native_ximage.c
index a8633b1501e..6c6ba24e7b3 100644
--- a/src/gallium/state_trackers/egl/x11/native_ximage.c
+++ b/src/gallium/state_trackers/egl/x11/native_ximage.c
@@ -28,17 +28,15 @@
 #include <sys/shm.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
-#include <X11/extensions/XShm.h>
 #include "util/u_memory.h"
 #include "util/u_math.h"
 #include "util/u_format.h"
 #include "pipe/p_compiler.h"
 #include "util/u_simple_screen.h"
 #include "util/u_inlines.h"
-#include "softpipe/sp_winsys.h"
+#include "state_tracker/xlib_sw_winsys.h"
 #include "egllog.h"
 
-#include "sw_winsys.h"
 #include "native_x11.h"
 #include "x11_screen.h"
 
@@ -56,19 +54,15 @@ struct ximage_display {
    struct x11_screen *xscr;
    int xscr_number;
 
-   boolean use_xshm;
+   struct xm_driver *driver;
 
-   struct pipe_winsys *winsys;
    struct ximage_config *configs;
    int num_configs;
 };
 
 struct ximage_buffer {
-   XImage *ximage;
-
    struct pipe_texture *texture;
-   XShmSegmentInfo *shm_info;
-   boolean xshm_attached;
+   struct xlib_drawable xdraw;
 };
 
 struct ximage_surface {
@@ -119,18 +113,6 @@ ximage_surface_free_buffer(struct native_surface *nsurf,
    struct ximage_buffer *xbuf = &xsurf->buffers[which];
 
    pipe_texture_reference(&xbuf->texture, NULL);
-
-   if (xbuf->shm_info) {
-      if (xbuf->xshm_attached)
-         XShmDetach(xsurf->xdpy->dpy, xbuf->shm_info);
-      if (xbuf->shm_info->shmaddr != (void *) -1)
-         shmdt(xbuf->shm_info->shmaddr);
-      if (xbuf->shm_info->shmid != -1)
-         shmctl(xbuf->shm_info->shmid, IPC_RMID, 0);
-
-      xbuf->shm_info->shmaddr = (void *) -1;
-      xbuf->shm_info->shmid = -1;
-   }
 }
 
 static boolean
@@ -154,40 +136,26 @@ ximage_surface_alloc_buffer(struct native_surface *nsurf,
    templ.depth0 = 1;
    templ.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
 
-   if (xbuf->shm_info) {
-      struct pipe_buffer *pbuf;
-      unsigned stride, size;
-      void *addr = NULL;
-
-      stride = util_format_get_stride(xsurf->color_format, xsurf->width);
-      /* alignment should depend on visual? */
-      stride = align(stride, 4);
-      size = stride * xsurf->height;
-
-      /* create and attach shm object */
-      xbuf->shm_info->shmid = shmget(IPC_PRIVATE, size, 0755);
-      if (xbuf->shm_info->shmid != -1) {
-         xbuf->shm_info->shmaddr =
-            shmat(xbuf->shm_info->shmid, NULL, 0);
-         if (xbuf->shm_info->shmaddr != (void *) -1) {
-            if (XShmAttach(xsurf->xdpy->dpy, xbuf->shm_info)) {
-               addr = xbuf->shm_info->shmaddr;
-               xbuf->xshm_attached = TRUE;
-            }
-         }
-      }
-
-      if (addr) {
-         pbuf = screen->user_buffer_create(screen, addr, size);
-         if (pbuf) {
-            xbuf->texture =
-               screen->texture_blanket(screen, &templ, &stride, pbuf);
-            pipe_buffer_reference(&pbuf, NULL);
-         }
+   if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER) {
+      switch (which) {
+      case NATIVE_ATTACHMENT_FRONT_LEFT:
+      case NATIVE_ATTACHMENT_FRONT_RIGHT:
+         templ.tex_usage |= PIPE_TEXTURE_USAGE_PRIMARY;
+         break;
+      case NATIVE_ATTACHMENT_BACK_LEFT:
+      case NATIVE_ATTACHMENT_BACK_RIGHT:
+         templ.tex_usage |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
+         break;
+      default:
+         break;
       }
    }
-   else {
-      xbuf->texture = screen->texture_create(screen, &templ);
+   xbuf->texture = screen->texture_create(screen, &templ);
+   if (xbuf->texture) {
+      xbuf->xdraw.visual = xsurf->visual.visual;
+      xbuf->xdraw.depth = xsurf->visual.depth;
+      xbuf->xdraw.drawable = xsurf->drawable;
+      xbuf->xdraw.gc = xsurf->gc;
    }
 
    /* clean up the buffer if allocation failed */
@@ -257,18 +225,10 @@ ximage_surface_update_buffers(struct native_surface *nsurf, uint buffer_mask)
    new_valid = 0x0;
    for (att = 0; att < NUM_NATIVE_ATTACHMENTS; att++) {
       if (native_attachment_mask_test(buffer_mask, att)) {
-         struct ximage_buffer *xbuf = &xsurf->buffers[att];
-
          /* reallocate the texture */
          if (!ximage_surface_alloc_buffer(&xsurf->base, att))
             break;
 
-         /* update ximage */
-         if (xbuf->ximage) {
-            xbuf->ximage->width = xsurf->width;
-            xbuf->ximage->height = xsurf->height;
-         }
-
          new_valid |= (1 << att);
          if (buffer_mask == new_valid)
             break;
@@ -288,43 +248,22 @@ ximage_surface_draw_buffer(struct native_surface *nsurf,
    struct ximage_surface *xsurf = ximage_surface(nsurf);
    struct ximage_buffer *xbuf = &xsurf->buffers[which];
    struct pipe_screen *screen = xsurf->xdpy->base.screen;
-   struct pipe_transfer *transfer;
+   struct pipe_surface *psurf;
 
    if (xsurf->type == XIMAGE_SURFACE_TYPE_PBUFFER)
       return TRUE;
 
-   assert(xsurf->drawable && xbuf->ximage && xbuf->texture);
+   assert(xsurf->drawable && xbuf->texture);
 
-   transfer = screen->get_tex_transfer(screen, xbuf->texture,
-         0, 0, 0, PIPE_TRANSFER_READ, 0, 0, xsurf->width, xsurf->height);
-   if (!transfer)
+   /* what's the cost of surface creation? */
+   psurf = screen->get_tex_surface(screen,
+         xbuf->texture, 0, 0, 0, PIPE_BUFFER_USAGE_CPU_READ);
+   if (!psurf)
       return FALSE;
 
-   xbuf->ximage->bytes_per_line = transfer->stride;
-   xbuf->ximage->data = screen->transfer_map(screen, transfer);
-   if (!xbuf->ximage->data) {
-      screen->tex_transfer_destroy(transfer);
-      return FALSE;
-   }
-
-
-   if (xbuf->shm_info)
-      XShmPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc,
-            xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height, False);
-   else
-      XPutImage(xsurf->xdpy->dpy, xsurf->drawable, xsurf->gc,
-            xbuf->ximage, 0, 0, 0, 0, xsurf->width, xsurf->height);
+   screen->flush_frontbuffer(screen, psurf, &xbuf->xdraw);
 
-   xbuf->ximage->data = NULL;
-   screen->transfer_unmap(screen, transfer);
-
-   /*
-    * softpipe allows the pipe transfer to be re-used, but we don't want to
-    * rely on that behavior.
-    */
-   screen->tex_transfer_destroy(transfer);
-
-   XSync(xsurf->xdpy->dpy, FALSE);
+   pipe_surface_reference(&psurf, NULL);
 
    return TRUE;
 }
@@ -351,20 +290,20 @@ ximage_surface_swap_buffers(struct native_surface *nsurf)
    boolean ret;
 
    /* display the back buffer first */
-   ret = ximage_surface_draw_buffer(nsurf, NATIVE_ATTACHMENT_BACK_LEFT);
+   ret = ximage_surface_draw_buffer(&xsurf->base,
+         NATIVE_ATTACHMENT_BACK_LEFT);
    /* force buffers to be updated in next validation call */
    xsurf->server_stamp++;
 
    xfront = &xsurf->buffers[NATIVE_ATTACHMENT_FRONT_LEFT];
    xback = &xsurf->buffers[NATIVE_ATTACHMENT_BACK_LEFT];
 
-   /* skip swapping so that the front buffer is allocated only when needed */
-   if (!xfront->texture)
-      return ret;
-
-   xtmp = *xfront;
-   *xfront = *xback;
-   *xback = xtmp;
+   /* skip swapping unless there is a front buffer */
+   if (xfront->texture) {
+      xtmp = *xfront;
+      *xfront = *xback;
+      *xback = xtmp;
+   }
 
    return ret;
 }
@@ -419,15 +358,8 @@ ximage_surface_destroy(struct native_surface *nsurf)
    struct ximage_surface *xsurf = ximage_surface(nsurf);
    int i;
 
-   for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
-      struct ximage_buffer *xbuf = &xsurf->buffers[i];
+   for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++)
       ximage_surface_free_buffer(&xsurf->base, i);
-      /* xbuf->shm_info is owned by xbuf->ximage? */
-      if (xbuf->ximage) {
-         XDestroyImage(xbuf->ximage);
-         xbuf->ximage = NULL;
-      }
-   }
 
    if (xsurf->type != XIMAGE_SURFACE_TYPE_PBUFFER)
       XFreeGC(xsurf->xdpy->dpy, xsurf->gc);
@@ -443,7 +375,6 @@ ximage_display_create_surface(struct native_display *ndpy,
    struct ximage_display *xdpy = ximage_display(ndpy);
    struct ximage_config *xconf = ximage_config(nconf);
    struct ximage_surface *xsurf;
-   int i;
 
    xsurf = CALLOC_STRUCT(ximage_surface);
    if (!xsurf)
@@ -466,43 +397,6 @@ ximage_display_create_surface(struct native_display *ndpy,
 
       /* initialize the geometry */
       ximage_surface_update_buffers(&xsurf->base, 0x0);
-
-      for (i = 0; i < NUM_NATIVE_ATTACHMENTS; i++) {
-         struct ximage_buffer *xbuf = &xsurf->buffers[i];
-
-         if (xdpy->use_xshm) {
-            xbuf->shm_info = calloc(1, sizeof(*xbuf->shm_info));
-            if (xbuf->shm_info) {
-               /* initialize shm info */
-               xbuf->shm_info->shmid = -1;
-               xbuf->shm_info->shmaddr = (void *) -1;
-               xbuf->shm_info->readOnly = TRUE;
-
-               xbuf->ximage = XShmCreateImage(xsurf->xdpy->dpy,
-                     xsurf->visual.visual,
-                     xsurf->visual.depth,
-                     ZPixmap, NULL,
-                     xbuf->shm_info,
-                     0, 0);
-            }
-         }
-         else {
-            xbuf->ximage = XCreateImage(xsurf->xdpy->dpy,
-                  xsurf->visual.visual,
-                  xsurf->visual.depth,
-                  ZPixmap, 0,   /* format, offset */
-                  NULL,         /* data */
-                  0, 0,         /* size */
-                  8,            /* bitmap_pad */
-                  0);           /* bytes_per_line */
-         }
-
-         if (!xbuf->ximage) {
-            XFreeGC(xdpy->dpy, xsurf->gc);
-            free(xsurf);
-            return NULL;
-         }
-      }
    }
 
    xsurf->base.destroy = ximage_surface_destroy;
@@ -694,7 +588,6 @@ ximage_display_destroy(struct native_display *ndpy)
       free(xdpy->configs);
 
    xdpy->base.screen->destroy(xdpy->base.screen);
-   free(xdpy->winsys);
 
    x11_screen_destroy(xdpy->xscr);
    if (xdpy->own_dpy)
@@ -703,7 +596,7 @@ ximage_display_destroy(struct native_display *ndpy)
 }
 
 struct native_display *
-x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm)
+x11_create_ximage_display(EGLNativeDisplayType dpy)
 {
    struct ximage_display *xdpy;
 
@@ -728,11 +621,8 @@ x11_create_ximage_display(EGLNativeDisplayType dpy, boolean use_xshm)
       return NULL;
    }
 
-   xdpy->use_xshm =
-      (use_xshm && x11_screen_support(xdpy->xscr, X11_SCREEN_EXTENSION_XSHM));
-
-   xdpy->winsys = create_sw_winsys();
-   xdpy->base.screen = softpipe_create_screen(xdpy->winsys);
+   xdpy->driver = xlib_sw_winsys_init();
+   xdpy->base.screen = xdpy->driver->create_pipe_screen(xdpy->dpy);
 
    xdpy->base.destroy = ximage_display_destroy;
 
diff --git a/src/gallium/state_trackers/egl/x11/sw_winsys.c b/src/gallium/state_trackers/egl/x11/sw_winsys.c
deleted file mode 100644
index 33328aadf26..00000000000
--- a/src/gallium/state_trackers/egl/x11/sw_winsys.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2008 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.
- * 
- **************************************************************************/
-
-/**
- * Totally software-based winsys layer.
- * Note that the one winsys function that we can't implement here
- * is flush_frontbuffer().
- * Whoever uses this code will have to provide that.
- *
- * Authors: Brian Paul
- */
-
-
-#include "util/u_simple_screen.h"
-#include "pipe/p_state.h"
-#include "util/u_inlines.h"
-#include "util/u_format.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-
-#include "sw_winsys.h"
-
-
-
-/** Subclass of pipe_winsys */
-struct sw_pipe_winsys
-{
-   struct pipe_winsys Base;
-   /* no extra fields for now */
-};
-
-
-/** subclass of pipe_buffer */
-struct sw_pipe_buffer
-{
-   struct pipe_buffer Base;
-   boolean UserBuffer;  /** Is this a user-space buffer? */
-   void *Data;
-   void *Mapped;
-};
-
-
-/** cast wrapper */
-static INLINE struct sw_pipe_buffer *
-sw_pipe_buffer(struct pipe_buffer *b)
-{
-   return (struct sw_pipe_buffer *) b;
-}
-
-
-static const char *
-get_name(struct pipe_winsys *pws)
-{
-   return "software";
-}
-
-
-/** Create new pipe_buffer and allocate storage of given size */
-static struct pipe_buffer *
-buffer_create(struct pipe_winsys *pws, 
-              unsigned alignment, 
-              unsigned usage,
-              unsigned size)
-{
-   struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer);
-   if (!buffer)
-      return NULL;
-
-   pipe_reference_init(&buffer->Base.reference, 1);
-   buffer->Base.alignment = alignment;
-   buffer->Base.usage = usage;
-   buffer->Base.size = size;
-
-   /* align to 16-byte multiple for Cell */
-   buffer->Data = align_malloc(size, MAX2(alignment, 16));
-
-   return &buffer->Base;
-}
-
-
-/**
- * Create buffer which wraps user-space data.
- */
-static struct pipe_buffer *
-user_buffer_create(struct pipe_winsys *pws, void *ptr, unsigned bytes)
-{
-   struct sw_pipe_buffer *buffer = CALLOC_STRUCT(sw_pipe_buffer);
-   if (!buffer)
-      return NULL;
-
-   pipe_reference_init(&buffer->Base.reference, 1);
-   buffer->Base.size = bytes;
-   buffer->UserBuffer = TRUE;
-   buffer->Data = ptr;
-
-   return &buffer->Base;
-}
-
-
-static void *
-buffer_map(struct pipe_winsys *pws, struct pipe_buffer *buf, unsigned flags)
-{
-   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
-   buffer->Mapped = buffer->Data;
-   return buffer->Mapped;
-}
-
-
-static void
-buffer_unmap(struct pipe_winsys *pws, struct pipe_buffer *buf)
-{
-   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
-   buffer->Mapped = NULL;
-}
-
-
-static void
-buffer_destroy(struct pipe_buffer *buf)
-{
-   struct sw_pipe_buffer *buffer = sw_pipe_buffer(buf);
-
-   if (buffer->Data && !buffer->UserBuffer) {
-      align_free(buffer->Data);
-      buffer->Data = NULL;
-   }
-
-   free(buffer);
-}
-
-
-static struct pipe_buffer *
-surface_buffer_create(struct pipe_winsys *winsys,
-                      unsigned width, unsigned height,
-                      enum pipe_format format, 
-                      unsigned usage,
-                      unsigned tex_usage,
-                      unsigned *stride)
-{
-   const unsigned alignment = 64;
-   unsigned nblocksy;
-
-   nblocksy = util_format_get_nblocksy(format, height);
-   *stride = align(util_format_get_stride(format, width), alignment);
-
-   return winsys->buffer_create(winsys, alignment,
-                                usage,
-                                *stride * nblocksy);
-}
-
-
-static void
-fence_reference(struct pipe_winsys *sws, struct pipe_fence_handle **ptr,
-                struct pipe_fence_handle *fence)
-{
-   /* no-op */
-}
-
-
-static int
-fence_signalled(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
-                unsigned flag)
-{
-   /* no-op */
-   return 0;
-}
-
-
-static int
-fence_finish(struct pipe_winsys *sws, struct pipe_fence_handle *fence,
-             unsigned flag)
-{
-   /* no-op */
-   return 0;
-}
-
-
-/**
- * Create/return a new pipe_winsys object.
- */
-struct pipe_winsys *
-create_sw_winsys(void)
-{
-   struct sw_pipe_winsys *ws = CALLOC_STRUCT(sw_pipe_winsys);
-   if (!ws)
-      return NULL;
-
-   /* Fill in this struct with callbacks that pipe will need to
-    * communicate with the window system, buffer manager, etc. 
-    */
-   ws->Base.buffer_create = buffer_create;
-   ws->Base.user_buffer_create = user_buffer_create;
-   ws->Base.buffer_map = buffer_map;
-   ws->Base.buffer_unmap = buffer_unmap;
-   ws->Base.buffer_destroy = buffer_destroy;
-
-   ws->Base.surface_buffer_create = surface_buffer_create;
-
-   ws->Base.fence_reference = fence_reference;
-   ws->Base.fence_signalled = fence_signalled;
-   ws->Base.fence_finish = fence_finish;
-
-   ws->Base.flush_frontbuffer = NULL; /* not implemented here! */
-
-   ws->Base.get_name = get_name;
-
-   return &ws->Base;
-}
diff --git a/src/gallium/state_trackers/egl/x11/sw_winsys.h b/src/gallium/state_trackers/egl/x11/sw_winsys.h
deleted file mode 100644
index f96c5a14b0a..00000000000
--- a/src/gallium/state_trackers/egl/x11/sw_winsys.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/**************************************************************************
- * 
- * Copyright 2008 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 SW_WINSYS_H
-#define SW_WINSYS_H
-
-
-struct pipe_winsys;
-
-
-extern struct pipe_winsys *
-create_sw_winsys(void);
-
-
-#endif /* SW_WINSYS_H */