st/dri: Move common files to common directory

 27 files changed, 15 insertions(+), 15 deletions(-)
 rename src/gallium/state_trackers/dri/{ => common}/dri1_helper.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri1_helper.h (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_context.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_context.h (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_drawable.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_drawable.h (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_extensions.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_screen.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_screen.h (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_st_api.c (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_st_api.h (100%)
 rename src/gallium/state_trackers/dri/{ => common}/dri_wrapper.h (100%)

12 files changed, 1507 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/dri/common/dri1_helper.c b/src/gallium/state_trackers/dri/common/dri1_helper.c
new file mode 100644
index 0000000000..7eeb868d42
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri1_helper.c
@@ -0,0 +1,129 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Management of pipe objects (surface / pipe / fences) used by DRI1 and DRISW.
+ *
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "util/u_inlines.h"
+#include "pipe/p_context.h"
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+#include "dri1_helper.h"
+
+struct pipe_fence_handle *
+dri1_swap_fences_pop_front(struct dri_drawable *draw)
+{
+   struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen;
+   struct pipe_fence_handle *fence = NULL;
+
+   if (draw->cur_fences >= draw->desired_fences) {
+      screen->fence_reference(screen, &fence, draw->swap_fences[draw->tail]);
+      screen->fence_reference(screen, &draw->swap_fences[draw->tail++], NULL);
+      --draw->cur_fences;
+      draw->tail &= DRI_SWAP_FENCES_MASK;
+   }
+   return fence;
+}
+
+void
+dri1_swap_fences_push_back(struct dri_drawable *draw,
+                           struct pipe_fence_handle *fence)
+{
+   struct pipe_screen *screen = dri_screen(draw->sPriv)->pipe_screen;
+
+   if (!fence)
+      return;
+
+   if (draw->cur_fences < DRI_SWAP_FENCES_MAX) {
+      draw->cur_fences++;
+      screen->fence_reference(screen, &draw->swap_fences[draw->head++],
+			      fence);
+      draw->head &= DRI_SWAP_FENCES_MASK;
+   }
+}
+
+void
+dri1_swap_fences_clear(struct dri_drawable *drawable)
+{
+   struct pipe_screen *screen = dri_screen(drawable->sPriv)->pipe_screen;
+   struct pipe_fence_handle *fence;
+
+   while (drawable->cur_fences) {
+      fence = dri1_swap_fences_pop_front(drawable);
+      screen->fence_reference(screen, &fence, NULL);
+   }
+}
+
+struct pipe_surface *
+dri1_get_pipe_surface(struct dri_drawable *drawable, struct pipe_texture *ptex)
+{
+   struct pipe_screen *pipe_screen = dri_screen(drawable->sPriv)->pipe_screen;
+   struct pipe_surface *psurf = drawable->dri1_surface;
+
+   if (!psurf || psurf->texture != ptex) {
+      pipe_surface_reference(&drawable->dri1_surface, NULL);
+
+      drawable->dri1_surface = pipe_screen->get_tex_surface(pipe_screen,
+            ptex, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_READ);
+
+      psurf = drawable->dri1_surface;
+   }
+
+   return psurf;
+}
+
+void
+dri1_destroy_pipe_surface(struct dri_drawable *drawable)
+{
+   pipe_surface_reference(&drawable->dri1_surface, NULL);
+}
+
+struct pipe_context *
+dri1_get_pipe_context(struct dri_screen *screen)
+{
+   struct pipe_context *pipe = screen->dri1_pipe;
+
+   if (!pipe) {
+      screen->dri1_pipe =
+         screen->pipe_screen->context_create(screen->pipe_screen, NULL);
+      pipe = screen->dri1_pipe;
+   }
+
+   return pipe;
+}
+
+void
+dri1_destroy_pipe_context(struct dri_screen *screen)
+{
+   if (screen->dri1_pipe)
+      screen->dri1_pipe->destroy(screen->dri1_pipe);
+}
diff --git a/src/gallium/state_trackers/dri/common/dri1_helper.h b/src/gallium/state_trackers/dri/common/dri1_helper.h
new file mode 100644
index 0000000000..3254b7ff87
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri1_helper.h
@@ -0,0 +1,61 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#ifndef DRI1_HELPER_H
+#define DRI1_HELPER_H
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+
+struct pipe_fence_handle *
+dri1_swap_fences_pop_front(struct dri_drawable *draw);
+
+void
+dri1_swap_fences_push_back(struct dri_drawable *draw,
+                           struct pipe_fence_handle *fence);
+
+void
+dri1_swap_fences_clear(struct dri_drawable *drawable);
+
+struct pipe_surface *
+dri1_get_pipe_surface(struct dri_drawable *drawable, struct pipe_texture *ptex);
+
+void
+dri1_destroy_pipe_surface(struct dri_drawable *drawable);
+
+struct pipe_context *
+dri1_get_pipe_context(struct dri_screen *screen);
+
+void
+dri1_destroy_pipe_context(struct dri_screen *screen);
+
+#endif /* DRI1_HELPER_H */
diff --git a/src/gallium/state_trackers/dri/common/dri_context.c b/src/gallium/state_trackers/dri/common/dri_context.c
new file mode 100644
index 0000000000..34d9a932ea
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_context.c
@@ -0,0 +1,174 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "dri_screen.h"
+#include "dri_drawable.h"
+#include "dri_context.h"
+#include "dri_st_api.h"
+
+#include "pipe/p_context.h"
+#include "util/u_memory.h"
+
+GLboolean
+dri_create_context(const __GLcontextModes * visual,
+		   __DRIcontext * cPriv, void *sharedContextPrivate)
+{
+   struct st_api *stapi = dri_get_st_api();
+   __DRIscreen *sPriv = cPriv->driScreenPriv;
+   struct dri_screen *screen = dri_screen(sPriv);
+   struct dri_context *ctx = NULL;
+   struct st_context_iface *st_share = NULL;
+   struct st_visual stvis;
+
+   if (sharedContextPrivate) {
+      st_share = ((struct dri_context *)sharedContextPrivate)->st;
+   }
+
+   ctx = CALLOC_STRUCT(dri_context);
+   if (ctx == NULL)
+      goto fail;
+
+   cPriv->driverPrivate = ctx;
+   ctx->cPriv = cPriv;
+   ctx->sPriv = sPriv;
+   ctx->lock = screen->drmLock;
+
+   driParseConfigFiles(&ctx->optionCache,
+		       &screen->optionCache, sPriv->myNum, "dri");
+
+   dri_fill_st_visual(&stvis, screen, visual);
+   ctx->st = stapi->create_context(stapi, screen->smapi, &stvis, st_share);
+   if (ctx->st == NULL)
+      goto fail;
+   ctx->st->st_manager_private = (void *) ctx;
+
+   dri_init_extensions(ctx);
+
+   return GL_TRUE;
+
+ fail:
+   if (ctx && ctx->st)
+      ctx->st->destroy(ctx->st);
+
+   FREE(ctx);
+   return FALSE;
+}
+
+void
+dri_destroy_context(__DRIcontext * cPriv)
+{
+   struct dri_context *ctx = dri_context(cPriv);
+
+   /* note: we are freeing values and nothing more because
+    * driParseConfigFiles allocated values only - the rest
+    * is owned by screen optionCache.
+    */
+   FREE(ctx->optionCache.values);
+
+   /* No particular reason to wait for command completion before
+    * destroying a context, but it is probably worthwhile flushing it
+    * to avoid having to add code elsewhere to cope with flushing a
+    * partially destroyed context.
+    */
+   ctx->st->flush(ctx->st, 0, NULL);
+   ctx->st->destroy(ctx->st);
+
+   FREE(ctx);
+}
+
+GLboolean
+dri_unbind_context(__DRIcontext * cPriv)
+{
+   struct st_api *stapi = dri_get_st_api();
+
+   if (cPriv) {
+      struct dri_context *ctx = dri_context(cPriv);
+
+      if (--ctx->bind_count == 0) {
+         if (ctx->st == stapi->get_current(stapi)) {
+            ctx->st->flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
+            stapi->make_current(stapi, NULL, NULL, NULL);
+         }
+      }
+   }
+
+   return GL_TRUE;
+}
+
+GLboolean
+dri_make_current(__DRIcontext * cPriv,
+		 __DRIdrawable * driDrawPriv,
+		 __DRIdrawable * driReadPriv)
+{
+   struct st_api *stapi = dri_get_st_api();
+
+   if (cPriv) {
+      struct dri_context *ctx = dri_context(cPriv);
+      struct dri_drawable *draw = dri_drawable(driDrawPriv);
+      struct dri_drawable *read = dri_drawable(driReadPriv);
+      struct st_context_iface *old_st;
+
+      old_st = stapi->get_current(stapi);
+      if (old_st && old_st != ctx->st)
+	 ctx->st->flush(old_st, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+      ++ctx->bind_count;
+
+      if (ctx->dPriv != driDrawPriv) {
+	 ctx->dPriv = driDrawPriv;
+         draw->texture_stamp = driDrawPriv->lastStamp - 1;
+      }
+      if (ctx->rPriv != driReadPriv) {
+	 ctx->rPriv = driReadPriv;
+         read->texture_stamp = driReadPriv->lastStamp - 1;
+      }
+
+      stapi->make_current(stapi, ctx->st, draw->stfb, read->stfb);
+   }
+   else {
+      stapi->make_current(stapi, NULL, NULL, NULL);
+   }
+
+   return GL_TRUE;
+}
+
+struct dri_context *
+dri_get_current(void)
+{
+   struct st_api *stapi = dri_get_st_api();
+   struct st_context_iface *st;
+
+   st = stapi->get_current(stapi);
+
+   return (struct dri_context *) (st) ? st->st_manager_private : NULL;
+}
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_context.h b/src/gallium/state_trackers/dri/common/dri_context.h
new file mode 100644
index 0000000000..24d3d0368a
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_context.h
@@ -0,0 +1,97 @@
+/**************************************************************************
+ *
+ * Copyright (C) 2009 VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#ifndef DRI_CONTEXT_H
+#define DRI_CONTEXT_H
+
+#include "pipe/p_compiler.h"
+#include "dri_wrapper.h"
+
+struct pipe_context;
+struct pipe_fence;
+struct st_context;
+struct dri_drawable;
+
+struct dri_context
+{
+   /* dri */
+   __DRIscreen *sPriv;
+   __DRIcontext *cPriv;
+   __DRIdrawable *dPriv;
+   __DRIdrawable *rPriv;
+
+   driOptionCache optionCache;
+
+   drmLock *lock;
+   boolean isLocked;
+   boolean stLostLock;
+   boolean wsLostLock;
+
+   unsigned int bind_count;
+
+   /* gallium */
+   struct st_context_iface *st;
+};
+
+static INLINE struct dri_context *
+dri_context(__DRIcontext * driContextPriv)
+{
+   return (struct dri_context *)driContextPriv->driverPrivate;
+}
+
+/***********************************************************************
+ * dri_context.c
+ */
+void dri_destroy_context(__DRIcontext * driContextPriv);
+
+boolean dri_unbind_context(__DRIcontext * driContextPriv);
+
+boolean
+dri_make_current(__DRIcontext * driContextPriv,
+		 __DRIdrawable * driDrawPriv,
+		 __DRIdrawable * driReadPriv);
+
+struct dri_context *
+dri_get_current(void);
+
+boolean
+dri_create_context(const __GLcontextModes * visual,
+		   __DRIcontext * driContextPriv,
+		   void *sharedContextPrivate);
+
+/***********************************************************************
+ * dri_extensions.c
+ */
+void dri_init_extensions(struct dri_context *ctx);
+
+#endif
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_drawable.c b/src/gallium/state_trackers/dri/common/dri_drawable.c
new file mode 100644
index 0000000000..75b4cc5628
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_drawable.c
@@ -0,0 +1,94 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+#include "dri_st_api.h"
+#include "dri1_helper.h"
+
+#include "pipe/p_screen.h"
+#include "util/u_format.h"
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+ 
+/**
+ * This is called when we need to set up GL rendering to a new X window.
+ */
+boolean
+dri_create_buffer(__DRIscreen * sPriv,
+		  __DRIdrawable * dPriv,
+		  const __GLcontextModes * visual, boolean isPixmap)
+{
+   struct dri_screen *screen = sPriv->private;
+   struct dri_drawable *drawable = NULL;
+
+   if (isPixmap)
+      goto fail;		       /* not implemented */
+
+   drawable = CALLOC_STRUCT(dri_drawable);
+   if (drawable == NULL)
+      goto fail;
+
+   dri_fill_st_visual(&drawable->stvis, screen, visual);
+   drawable->stfb = dri_create_st_framebuffer(drawable);
+   if (drawable->stfb == NULL)
+      goto fail;
+
+   drawable->sPriv = sPriv;
+   drawable->dPriv = dPriv;
+   dPriv->driverPrivate = (void *)drawable;
+
+   drawable->desired_fences = 2;
+
+   return GL_TRUE;
+fail:
+   FREE(drawable);
+   return GL_FALSE;
+}
+
+void
+dri_destroy_buffer(__DRIdrawable * dPriv)
+{
+   struct dri_drawable *drawable = dri_drawable(dPriv);
+
+   dri1_swap_fences_clear(drawable);
+
+   dri1_destroy_pipe_surface(drawable);
+
+   dri_destroy_st_framebuffer(drawable->stfb);
+
+   drawable->desired_fences = 0;
+
+   FREE(drawable);
+}
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_drawable.h b/src/gallium/state_trackers/dri/common/dri_drawable.h
new file mode 100644
index 0000000000..98abeb9ec0
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_drawable.h
@@ -0,0 +1,89 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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 DRI_DRAWABLE_H
+#define DRI_DRAWABLE_H
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_format.h"
+#include "state_tracker/st_api.h"
+
+struct pipe_surface;
+struct pipe_fence_handle;
+struct st_framebuffer;
+struct dri_context;
+
+#define DRI_SWAP_FENCES_MAX  8
+#define DRI_SWAP_FENCES_MASK 7
+
+struct dri_drawable
+{
+   /* dri */
+   __DRIdrawable *dPriv;
+   __DRIscreen *sPriv;
+
+   /* gallium */
+   struct st_framebuffer_iface *stfb;
+   struct st_visual stvis;
+
+   __DRIbuffer old[8];
+   unsigned old_num;
+   unsigned old_w;
+   unsigned old_h;
+
+   struct pipe_texture *textures[ST_ATTACHMENT_COUNT];
+   unsigned int texture_mask, texture_stamp;
+
+   struct pipe_fence_handle *swap_fences[DRI_SWAP_FENCES_MAX];
+   unsigned int head;
+   unsigned int tail;
+   unsigned int desired_fences;
+   unsigned int cur_fences;
+
+   /* used only by DRI1 */
+   struct pipe_surface *dri1_surface;
+};
+
+static INLINE struct dri_drawable *
+dri_drawable(__DRIdrawable * driDrawPriv)
+{
+   return (struct dri_drawable *)driDrawPriv->driverPrivate;
+}
+
+/***********************************************************************
+ * dri_drawable.c
+ */
+boolean
+dri_create_buffer(__DRIscreen * sPriv,
+		  __DRIdrawable * dPriv,
+		  const __GLcontextModes * visual, boolean isPixmap);
+
+void dri_destroy_buffer(__DRIdrawable * dPriv);
+
+#endif
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_extensions.c b/src/gallium/state_trackers/dri/common/dri_extensions.c
new file mode 100644
index 0000000000..df458e1eb0
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_extensions.c
@@ -0,0 +1,48 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "state_tracker/st_context.h"
+
+#include "utils.h"
+
+void
+dri_init_extensions(struct dri_context *ctx)
+{
+   struct st_context *st = (struct st_context *) ctx->st;
+
+   /* New extensions should be added in mesa/state_tracker/st_extensions.c
+    * and not in this file. */
+   driInitExtensions(st->ctx, NULL, GL_FALSE);
+}
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.c b/src/gallium/state_trackers/dri/common/dri_screen.c
new file mode 100644
index 0000000000..598a07bb64
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_screen.c
@@ -0,0 +1,373 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#include "utils.h"
+#ifndef __NOT_HAVE_DRM_H
+#include "vblank.h"
+#endif
+#include "xmlpool.h"
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+#include "dri_st_api.h"
+#include "dri1_helper.h"
+#ifndef __NOT_HAVE_DRM_H
+#include "dri1.h"
+#include "dri2.h"
+#else
+#include "drisw.h"
+#endif
+
+#include "util/u_inlines.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_format.h"
+#include "state_tracker/drm_api.h"
+
+#include "util/u_debug.h"
+
+PUBLIC const char __driConfigOptions[] =
+   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
+   DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
+   DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
+   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
+/* DRI_CONF_FORCE_S3TC_ENABLE(false) */
+   DRI_CONF_ALLOW_LARGE_TEXTURES(1)
+   DRI_CONF_SECTION_END DRI_CONF_END;
+
+const uint __driNConfigOptions = 3;
+
+const __DRIconfig **
+dri_fill_in_modes(struct dri_screen *screen,
+		  unsigned pixel_bits)
+{
+   __DRIconfig **configs = NULL;
+   __DRIconfig **configs_r5g6b5 = NULL;
+   __DRIconfig **configs_a8r8g8b8 = NULL;
+   __DRIconfig **configs_x8r8g8b8 = NULL;
+   unsigned num_modes;
+   uint8_t depth_bits_array[5];
+   uint8_t stencil_bits_array[5];
+   uint8_t msaa_samples_array[2];
+   unsigned depth_buffer_factor;
+   unsigned back_buffer_factor;
+   unsigned msaa_samples_factor;
+   struct pipe_screen *p_screen = screen->pipe_screen;
+   boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
+   boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
+
+   static const GLenum back_buffer_modes[] = {
+      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
+   };
+
+   depth_bits_array[0] = 0;
+   stencil_bits_array[0] = 0;
+   depth_buffer_factor = 1;
+
+   pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
+					    PIPE_TEXTURE_2D,
+					    PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+   pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
+					    PIPE_TEXTURE_2D,
+					    PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+   pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24S8_UNORM,
+					    PIPE_TEXTURE_2D,
+					    PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+   pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8Z24_UNORM,
+					    PIPE_TEXTURE_2D,
+					    PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+   pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
+					       PIPE_TEXTURE_2D,
+					       PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
+   pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
+					       PIPE_TEXTURE_2D,
+					       PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
+   pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
+					     PIPE_TEXTURE_2D,
+					     PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
+
+   /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
+   if (dri_with_format(screen->sPriv)) {
+      pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
+                                             PIPE_TEXTURE_2D,
+                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+      pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
+                                             PIPE_TEXTURE_2D,
+                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
+   } else {
+      pf_z16 = FALSE;
+      pf_z32 = FALSE;
+   }
+
+   if (pf_z16) {
+      depth_bits_array[depth_buffer_factor] = 16;
+      stencil_bits_array[depth_buffer_factor++] = 0;
+   }
+   if (pf_x8z24 || pf_z24x8) {
+      depth_bits_array[depth_buffer_factor] = 24;
+      stencil_bits_array[depth_buffer_factor++] = 0;
+      screen->d_depth_bits_last = pf_x8z24;
+   }
+   if (pf_s8z24 || pf_z24s8) {
+      depth_bits_array[depth_buffer_factor] = 24;
+      stencil_bits_array[depth_buffer_factor++] = 8;
+      screen->sd_depth_bits_last = pf_s8z24;
+   }
+   if (pf_z32) {
+      depth_bits_array[depth_buffer_factor] = 32;
+      stencil_bits_array[depth_buffer_factor++] = 0;
+   }
+
+   msaa_samples_array[0] = 0;
+   msaa_samples_array[1] = 4;
+   back_buffer_factor = 3;
+   msaa_samples_factor = 2;
+
+   num_modes =
+      depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
+
+   if (pf_r5g6b5)
+      configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
+                                        depth_bits_array, stencil_bits_array,
+                                        depth_buffer_factor, back_buffer_modes,
+                                        back_buffer_factor,
+                                        msaa_samples_array, msaa_samples_factor,
+                                        GL_TRUE);
+
+   if (pf_a8r8g8b8)
+      configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
+                                          depth_bits_array,
+                                          stencil_bits_array,
+                                          depth_buffer_factor,
+                                          back_buffer_modes,
+                                          back_buffer_factor,
+                                          msaa_samples_array,
+                                          msaa_samples_factor,
+                                          GL_TRUE);
+
+   if (pf_x8r8g8b8)
+      configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
+                                          depth_bits_array,
+                                          stencil_bits_array,
+                                          depth_buffer_factor,
+                                          back_buffer_modes,
+                                          back_buffer_factor,
+                                          msaa_samples_array,
+                                          msaa_samples_factor,
+                                          GL_TRUE);
+
+   if (pixel_bits == 16) {
+      configs = configs_r5g6b5;
+      if (configs_a8r8g8b8)
+         configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
+      if (configs_x8r8g8b8)
+	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
+   } else {
+      configs = configs_a8r8g8b8;
+      if (configs_x8r8g8b8)
+	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
+      if (configs_r5g6b5)
+         configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
+   }
+
+   if (configs == NULL) {
+      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
+      return NULL;
+   }
+
+   return (const __DRIconfig **)configs;
+}
+
+/**
+ * Roughly the converse of dri_fill_in_modes.
+ */
+void
+dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
+                   const __GLcontextModes *mode)
+{
+   memset(stvis, 0, sizeof(*stvis));
+
+   stvis->samples = mode->samples;
+   stvis->render_buffer = ST_ATTACHMENT_INVALID;
+
+   if (mode->redBits == 8) {
+      if (mode->alphaBits == 8)
+         stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
+      else
+         stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
+   } else {
+      stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
+   }
+
+   switch (mode->depthBits) {
+   default:
+   case 0:
+      stvis->depth_stencil_format = PIPE_FORMAT_NONE;
+      break;
+   case 16:
+      stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
+      break;
+   case 24:
+      if (mode->stencilBits == 0) {
+	 stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
+                                          PIPE_FORMAT_Z24X8_UNORM:
+                                          PIPE_FORMAT_X8Z24_UNORM;
+      } else {
+	 stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
+                                          PIPE_FORMAT_Z24S8_UNORM:
+                                          PIPE_FORMAT_S8Z24_UNORM;
+      }
+      break;
+   case 32:
+      stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
+      break;
+   }
+
+   stvis->accum_format = (mode->haveAccumBuffer) ?
+      PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
+
+   stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
+   if (mode->doubleBufferMode)
+      stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
+   if (mode->stereoMode) {
+      stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
+      if (mode->doubleBufferMode)
+         stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
+   }
+
+   if (mode->haveDepthBuffer || mode->haveStencilBuffer)
+      stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
+   /* let the state tracker allocate the accum buffer */
+}
+
+#ifndef __NOT_HAVE_DRM_H
+
+/**
+ * Get information about previous buffer swaps.
+ */
+static int
+dri_get_swap_info(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
+{
+   if (dPriv == NULL || dPriv->driverPrivate == NULL || sInfo == NULL)
+      return -1;
+   else
+      return 0;
+}
+
+#endif
+
+static void
+dri_destroy_option_cache(struct dri_screen * screen)
+{
+   int i;
+
+   for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
+      FREE(screen->optionCache.info[i].name);
+      FREE(screen->optionCache.info[i].ranges);
+   }
+
+   FREE(screen->optionCache.info);
+   FREE(screen->optionCache.values);
+}
+
+void
+dri_destroy_screen(__DRIscreen * sPriv)
+{
+   struct dri_screen *screen = dri_screen(sPriv);
+
+   dri1_destroy_pipe_context(screen);
+
+   if (screen->smapi)
+      dri_destroy_st_manager(screen->smapi);
+
+   if (screen->pipe_screen)
+      screen->pipe_screen->destroy(screen->pipe_screen);
+
+   dri_destroy_option_cache(screen);
+
+   FREE(screen);
+   sPriv->private = NULL;
+   sPriv->extensions = NULL;
+}
+
+#ifndef __NOT_HAVE_DRM_H
+
+const struct __DriverAPIRec driDriverAPI = {
+   .DestroyScreen = dri_destroy_screen,
+   .CreateContext = dri_create_context,
+   .DestroyContext = dri_destroy_context,
+   .CreateBuffer = dri_create_buffer,
+   .DestroyBuffer = dri_destroy_buffer,
+   .MakeCurrent = dri_make_current,
+   .UnbindContext = dri_unbind_context,
+   .GetSwapInfo = dri_get_swap_info,
+   .GetDrawableMSC = driDrawableGetMSC32,
+   .WaitForMSC = driWaitForMSC32,
+   .InitScreen2 = dri2_init_screen,
+
+   .InitScreen = dri1_init_screen,
+   .SwapBuffers = dri1_swap_buffers,
+   .CopySubBuffer = dri1_copy_sub_buffer,
+};
+
+/* This is the table of extensions that the loader will dlsym() for. */
+PUBLIC const __DRIextension *__driDriverExtensions[] = {
+    &driCoreExtension.base,
+    &driLegacyExtension.base,
+    &driDRI2Extension.base,
+    NULL
+};
+
+#else
+
+const struct __DriverAPIRec driDriverAPI = {
+   .DestroyScreen = dri_destroy_screen,
+   .CreateContext = dri_create_context,
+   .DestroyContext = dri_destroy_context,
+   .CreateBuffer = dri_create_buffer,
+   .DestroyBuffer = dri_destroy_buffer,
+   .MakeCurrent = dri_make_current,
+   .UnbindContext = dri_unbind_context,
+
+   .InitScreen = drisw_init_screen,
+   .SwapBuffers = drisw_swap_buffers,
+};
+
+/* This is the table of extensions that the loader will dlsym() for. */
+PUBLIC const __DRIextension *__driDriverExtensions[] = {
+    &driCoreExtension.base,
+    &driSWRastExtension.base,
+    NULL
+};
+
+#endif
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_screen.h b/src/gallium/state_trackers/dri/common/dri_screen.h
new file mode 100644
index 0000000000..4f59db37cf
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_screen.h
@@ -0,0 +1,114 @@
+/**************************************************************************
+ *
+ * Copyright 2009, VMware, Inc.
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+/*
+ * Author: Keith Whitwell <keithw@vmware.com>
+ * Author: Jakob Bornecrantz <wallbraker@gmail.com>
+ */
+
+#ifndef DRI_SCREEN_H
+#define DRI_SCREEN_H
+
+#include "dri_wrapper.h"
+#include "xmlconfig.h"
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "state_tracker/st_api.h"
+
+struct dri_screen
+{
+   /* dri */
+   __DRIscreen *sPriv;
+
+   /**
+    * Configuration cache with default values for all contexts
+    */
+   driOptionCache optionCache;
+
+   /* drm */
+   int fd;
+   drmLock *drmLock;
+
+   /* gallium */
+   struct drm_api *api;
+   struct pipe_winsys *pipe_winsys;
+   struct pipe_screen *pipe_screen;
+   boolean d_depth_bits_last;
+   boolean sd_depth_bits_last;
+   boolean auto_fake_front;
+
+   struct st_manager *smapi;
+
+   /* used only by DRI1 */
+   struct pipe_context *dri1_pipe;
+};
+
+/** cast wrapper */
+static INLINE struct dri_screen *
+dri_screen(__DRIscreen * sPriv)
+{
+   return (struct dri_screen *)sPriv->private;
+}
+
+#ifndef __NOT_HAVE_DRM_H
+
+static INLINE boolean
+dri_with_format(__DRIscreen * sPriv)
+{
+   const __DRIdri2LoaderExtension *loader = sPriv->dri2.loader;
+
+   return loader
+       && (loader->base.version >= 3)
+       && (loader->getBuffersWithFormat != NULL);
+}
+
+#else
+
+static INLINE boolean
+dri_with_format(__DRIscreen * sPriv)
+{
+   return TRUE;
+}
+
+#endif
+
+extern const uint __driNConfigOptions;
+
+const __DRIconfig **
+dri_fill_in_modes(struct dri_screen *screen, unsigned pixel_bits);
+
+void
+dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
+                   const __GLcontextModes *mode);
+
+void
+dri_destroy_screen(__DRIscreen * sPriv);
+
+#endif
+
+/* vim: set sw=3 ts=8 sts=3 expandtab: */
diff --git a/src/gallium/state_trackers/dri/common/dri_st_api.c b/src/gallium/state_trackers/dri/common/dri_st_api.c
new file mode 100644
index 0000000000..40b24b18e9
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_st_api.c
@@ -0,0 +1,263 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
+#include "util/u_debug.h"
+#include "state_tracker/st_manager.h" /* for st_manager_create_api */
+
+#include "dri_screen.h"
+#include "dri_context.h"
+#include "dri_drawable.h"
+#include "dri_st_api.h"
+#include "dri1_helper.h"
+#ifndef __NOT_HAVE_DRM_H
+#include "dri1.h"
+#include "dri2.h"
+#else
+#include "drisw.h"
+#endif
+
+static boolean
+dri_st_framebuffer_validate(struct st_framebuffer_iface *stfbi,
+                            const enum st_attachment_type *statts,
+                            unsigned count,
+                            struct pipe_texture **out)
+{
+   struct dri_drawable *drawable =
+      (struct dri_drawable *) stfbi->st_manager_private;
+   unsigned statt_mask, new_mask;
+   boolean new_stamp;
+   int i;
+
+   statt_mask = 0x0;
+   for (i = 0; i < count; i++)
+      statt_mask |= (1 << statts[i]);
+
+   /* record newly allocated textures */
+   new_mask = (statt_mask & ~drawable->texture_mask);
+
+   /*
+    * dPriv->pStamp is the server stamp.  It should be accessed with a lock, at
+    * least for DRI1.  dPriv->lastStamp is the client stamp.  It has the value
+    * of the server stamp when last checked.
+    */
+   new_stamp = (drawable->texture_stamp != drawable->dPriv->lastStamp);
+
+   if (new_stamp || new_mask) {
+
+#ifndef __NOT_HAVE_DRM_H
+      if (__dri1_api_hooks) {
+         dri1_allocate_textures(drawable, statt_mask);
+      }
+      else {
+         dri2_allocate_textures(drawable, statts, count);
+      }
+#else
+      if (new_stamp)
+         drisw_update_drawable_info(drawable->dPriv);
+
+      drisw_allocate_textures(drawable, statt_mask);
+#endif
+
+      /* add existing textures */
+      for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
+         if (drawable->textures[i])
+            statt_mask |= (1 << i);
+      }
+
+      drawable->texture_stamp = drawable->dPriv->lastStamp;
+      drawable->texture_mask = statt_mask;
+   }
+
+   if (!out)
+      return TRUE;
+
+   for (i = 0; i < count; i++) {
+      out[i] = NULL;
+      pipe_texture_reference(&out[i], drawable->textures[statts[i]]);
+   }
+
+   return TRUE;
+}
+
+static boolean
+dri_st_framebuffer_flush_front(struct st_framebuffer_iface *stfbi,
+                               enum st_attachment_type statt)
+{
+   struct dri_drawable *drawable =
+      (struct dri_drawable *) stfbi->st_manager_private;
+
+#ifndef __NOT_HAVE_DRM_H
+   if (__dri1_api_hooks) {
+      dri1_flush_frontbuffer(drawable, statt);
+   }
+   else {
+      dri2_flush_frontbuffer(drawable, statt);
+   }
+#else
+   drisw_flush_frontbuffer(drawable, statt);
+#endif
+
+   return TRUE;
+}
+
+/**
+ * Create a framebuffer from the given drawable.
+ */
+struct st_framebuffer_iface *
+dri_create_st_framebuffer(struct dri_drawable *drawable)
+{
+   struct st_framebuffer_iface *stfbi;
+
+   stfbi = CALLOC_STRUCT(st_framebuffer_iface);
+   if (stfbi) {
+      stfbi->visual = &drawable->stvis;
+      stfbi->flush_front = dri_st_framebuffer_flush_front;
+      stfbi->validate = dri_st_framebuffer_validate;
+      stfbi->st_manager_private = (void *) drawable;
+   }
+
+   return stfbi;
+}
+
+/**
+ * Destroy a framebuffer.
+ */
+void
+dri_destroy_st_framebuffer(struct st_framebuffer_iface *stfbi)
+{
+   struct dri_drawable *drawable =
+      (struct dri_drawable *) stfbi->st_manager_private;
+   int i;
+
+   for (i = 0; i < ST_ATTACHMENT_COUNT; i++)
+      pipe_texture_reference(&drawable->textures[i], NULL);
+
+   FREE(stfbi);
+}
+
+/**
+ * Validate the texture at an attachment.  Allocate the texture if it does not
+ * exist.
+ */
+void
+dri_st_framebuffer_validate_att(struct st_framebuffer_iface *stfbi,
+                                enum st_attachment_type statt)
+{
+   struct dri_drawable *drawable =
+      (struct dri_drawable *) stfbi->st_manager_private;
+   enum st_attachment_type statts[ST_ATTACHMENT_COUNT];
+   unsigned i, count = 0;
+
+   /* check if buffer already exists */
+   if (drawable->texture_mask & (1 << statt))
+      return;
+
+   /* make sure DRI2 does not destroy existing buffers */
+   for (i = 0; i < ST_ATTACHMENT_COUNT; i++) {
+      if (drawable->texture_mask & (1 << i)) {
+         statts[count++] = i;
+      }
+   }
+   statts[count++] = statt;
+
+   drawable->texture_stamp = drawable->dPriv->lastStamp - 1;
+
+   stfbi->validate(stfbi, statts, count, NULL);
+}
+
+/**
+ * Reference counted st_api.
+ */
+static struct {
+   int32_t refcnt;
+   struct st_api *stapi;
+} dri_st_api;
+
+/**
+ * Add a reference to the st_api of the state tracker.
+ */
+static void
+_dri_get_st_api(void)
+{
+   p_atomic_inc(&dri_st_api.refcnt);
+   if (p_atomic_read(&dri_st_api.refcnt) == 1)
+      dri_st_api.stapi = st_manager_create_api();
+}
+
+/**
+ * Remove a reference to the st_api of the state tracker.
+ */
+static void
+_dri_put_st_api(void)
+{
+   struct st_api *stapi = dri_st_api.stapi;
+
+   if (p_atomic_dec_zero(&dri_st_api.refcnt)) {
+      stapi->destroy(dri_st_api.stapi);
+      dri_st_api.stapi = NULL;
+   }
+}
+
+/**
+ * Create a state tracker manager from the given screen.
+ */
+struct st_manager *
+dri_create_st_manager(struct dri_screen *screen)
+{
+   struct st_manager *smapi;
+
+   smapi = CALLOC_STRUCT(st_manager);
+   if (smapi) {
+      smapi->screen = screen->pipe_screen;
+      _dri_get_st_api();
+   }
+
+   return smapi;
+}
+
+/**
+ * Destroy a state tracker manager.
+ */
+void
+dri_destroy_st_manager(struct st_manager *smapi)
+{
+   _dri_put_st_api();
+   FREE(smapi);
+}
+
+/**
+ * Return the st_api of OpenGL state tracker.
+ */
+struct st_api *
+dri_get_st_api(void)
+{
+   assert(dri_st_api.stapi);
+   return dri_st_api.stapi;
+}
diff --git a/src/gallium/state_trackers/dri/common/dri_st_api.h b/src/gallium/state_trackers/dri/common/dri_st_api.h
new file mode 100644
index 0000000000..99a217bfa7
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_st_api.h
@@ -0,0 +1,55 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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, sublicense,
+ * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL 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.
+ *
+ * Authors:
+ *    Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _DRI_ST_API_H_
+#define _DRI_ST_API_H_
+
+#include "state_tracker/st_api.h"
+
+struct dri_screen;
+struct dri_drawable;
+
+struct st_api *
+dri_get_st_api(void);
+
+struct st_manager *
+dri_create_st_manager(struct dri_screen *screen);
+
+void
+dri_destroy_st_manager(struct st_manager *smapi);
+
+struct st_framebuffer_iface *
+dri_create_st_framebuffer(struct dri_drawable *drawable);
+
+void
+dri_destroy_st_framebuffer(struct st_framebuffer_iface *stfbi);
+
+void
+dri_st_framebuffer_validate_att(struct st_framebuffer_iface *stfbi,
+                                enum st_attachment_type statt);
+
+#endif /* _DRI_ST_API_H_ */
diff --git a/src/gallium/state_trackers/dri/common/dri_wrapper.h b/src/gallium/state_trackers/dri/common/dri_wrapper.h
new file mode 100644
index 0000000000..141ba02706
--- /dev/null
+++ b/src/gallium/state_trackers/dri/common/dri_wrapper.h
@@ -0,0 +1,10 @@
+#ifndef DRI_WRAPPER_H
+#define DRI_WRAPPER_H
+
+#ifndef __NOT_HAVE_DRM_H
+#include "dri_util.h"
+#else
+#include "drisw_util.h"
+#endif
+
+#endif