[mesa/f20] backport the GLX_MESA_copy_sub_buffer from upstream for cogl

Dave Airlie airlied at fedoraproject.org
Fri Dec 13 05:11:16 UTC 2013


commit 9f3eec83cfeee8dc50a7a95ea497f16d6015ccd1
Author: Dave Airlie <airlied at gmail.com>
Date:   Fri Dec 13 15:11:06 2013 +1000

    backport the GLX_MESA_copy_sub_buffer from upstream for cogl

 ...ium-classic-add-MESA_copy_sub_buffer-supp.patch | 1020 ++++++++++++++++++++
 mesa.spec                                          |   10 +-
 2 files changed, 1029 insertions(+), 1 deletions(-)
---
diff --git a/0001-swrast-gallium-classic-add-MESA_copy_sub_buffer-supp.patch b/0001-swrast-gallium-classic-add-MESA_copy_sub_buffer-supp.patch
new file mode 100644
index 0000000..d35de9b
--- /dev/null
+++ b/0001-swrast-gallium-classic-add-MESA_copy_sub_buffer-supp.patch
@@ -0,0 +1,1020 @@
+From 31d3205208bced090f790e530d861c75615d14d0 Mon Sep 17 00:00:00 2001
+From: Dave Airlie <airlied at gmail.com>
+Date: Thu, 28 Nov 2013 11:08:11 +1000
+Subject: [PATCH] swrast* (gallium, classic): add MESA_copy_sub_buffer support
+ (v3-backport)
+
+This patches add MESA_copy_sub_buffer support to the dri sw loader and
+then to gallium state tracker, llvmpipe, softpipe and other bits.
+
+It reuses the dri1 driver extension interface, and it updates the swrast
+loader interface for a new putimage which can take a stride.
+
+I've tested this with gnome-shell with a cogl hacked to reenable sub copies
+for llvmpipe and the one piglit test.
+
+I could probably split this patch up as well.
+
+v2: pass a pipe_box, to reduce the entrypoints, as per Jose's review,
+add to p_screen doc comments.
+
+v3: finish off winsys interfaces, add swrast classic support as well.
+
+backport to 9.2: old dri bits.
+
+Reviewed-by: Jose Fonseca <jfonseca at vmware.com>
+Signed-off-by: Dave Airlie <airlied at redhat.com>
+
+Conflicts:
+	src/gallium/state_trackers/dri/sw/drisw.c
+	src/gallium/targets/haiku-softpipe/GalliumContext.cpp
+	src/mesa/drivers/dri/common/dri_util.c
+	src/mesa/drivers/dri/swrast/swrast.c
+---
+ include/GL/internal/dri_interface.h                |  9 +++-
+ src/gallium/auxiliary/vl/vl_winsys_dri.c           |  2 +-
+ src/gallium/drivers/galahad/glhd_screen.c          |  5 +-
+ src/gallium/drivers/i915/i915_screen.c             |  4 +-
+ src/gallium/drivers/identity/id_screen.c           |  5 +-
+ src/gallium/drivers/llvmpipe/lp_screen.c           |  6 +--
+ src/gallium/drivers/noop/noop_pipe.c               |  2 +-
+ src/gallium/drivers/rbug/rbug_screen.c             |  4 +-
+ src/gallium/drivers/softpipe/sp_screen.c           |  5 +-
+ src/gallium/drivers/trace/tr_screen.c              |  5 +-
+ src/gallium/include/pipe/p_screen.h                |  7 +--
+ src/gallium/include/state_tracker/drisw_api.h      |  2 +
+ src/gallium/include/state_tracker/sw_winsys.h      |  5 +-
+ src/gallium/state_trackers/dri/sw/drisw.c          | 58 ++++++++++++++++++++--
+ .../state_trackers/egl/common/native_helper.c      |  2 +-
+ src/gallium/state_trackers/egl/x11/native_ximage.c |  2 +-
+ src/gallium/state_trackers/glx/xlib/xm_st.c        |  2 +-
+ src/gallium/state_trackers/vdpau/presentation.c    |  2 +-
+ src/gallium/state_trackers/xvmc/surface.c          |  2 +-
+ src/gallium/tests/graw/clear.c                     |  2 +-
+ src/gallium/tests/graw/fs-test.c                   |  2 +-
+ src/gallium/tests/graw/graw_util.h                 |  2 +-
+ src/gallium/tests/graw/gs-test.c                   |  2 +-
+ src/gallium/tests/graw/quad-sample.c               |  2 +-
+ src/gallium/tests/graw/shader-leak.c               |  2 +-
+ src/gallium/tests/graw/tri-gs.c                    |  2 +-
+ src/gallium/tests/graw/tri-instanced.c             |  2 +-
+ src/gallium/tests/graw/vs-test.c                   |  2 +-
+ .../winsys/sw/android/android_sw_winsys.cpp        |  3 +-
+ src/gallium/winsys/sw/dri/dri_sw_winsys.c          | 16 ++++--
+ src/gallium/winsys/sw/fbdev/fbdev_sw_winsys.c      |  3 +-
+ src/gallium/winsys/sw/gdi/gdi_sw_winsys.c          |  3 +-
+ src/gallium/winsys/sw/hgl/hgl_sw_winsys.c          |  3 +-
+ src/gallium/winsys/sw/null/null_sw_winsys.c        |  3 +-
+ src/gallium/winsys/sw/wayland/wayland_sw_winsys.c  |  3 +-
+ src/gallium/winsys/sw/xlib/xlib_sw_winsys.c        |  3 +-
+ src/glx/drisw_glx.c                                | 43 ++++++++++++++--
+ src/mesa/drivers/dri/common/dri_util.h             |  5 +-
+ src/mesa/drivers/dri/common/drisw_util.c           | 15 ++++++
+ src/mesa/drivers/dri/swrast/swrast.c               | 35 +++++++++++++
+ 40 files changed, 225 insertions(+), 57 deletions(-)
+
+diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
+index 5c99d55..09c1406 100644
+--- a/include/GL/internal/dri_interface.h
++++ b/include/GL/internal/dri_interface.h
+@@ -439,7 +439,7 @@ struct __DRIdamageExtensionRec {
+  * SWRast Loader extension.
+  */
+ #define __DRI_SWRAST_LOADER "DRI_SWRastLoader"
+-#define __DRI_SWRAST_LOADER_VERSION 1
++#define __DRI_SWRAST_LOADER_VERSION 2
+ struct __DRIswrastLoaderExtensionRec {
+     __DRIextension base;
+ 
+@@ -463,6 +463,13 @@ struct __DRIswrastLoaderExtensionRec {
+     void (*getImage)(__DRIdrawable *readable,
+ 		     int x, int y, int width, int height,
+ 		     char *data, void *loaderPrivate);
++
++    /**
++     * Put image to drawable
++     */
++    void (*putImage2)(__DRIdrawable *drawable, int op,
++                      int x, int y, int width, int height, int stride,
++                      char *data, void *loaderPrivate);
+ };
+ 
+ /**
+diff --git a/src/gallium/auxiliary/vl/vl_winsys_dri.c b/src/gallium/auxiliary/vl/vl_winsys_dri.c
+index 7aec3fe..e747a66 100644
+--- a/src/gallium/auxiliary/vl/vl_winsys_dri.c
++++ b/src/gallium/auxiliary/vl/vl_winsys_dri.c
+@@ -115,7 +115,7 @@ static void
+ vl_dri2_flush_frontbuffer(struct pipe_screen *screen,
+                           struct pipe_resource *resource,
+                           unsigned level, unsigned layer,
+-                          void *context_private)
++                          void *context_private, struct pipe_box *sub_box)
+ {
+    struct vl_dri_screen *scrn = (struct vl_dri_screen*)context_private;
+    uint32_t msc_hi, msc_lo;
+diff --git a/src/gallium/drivers/galahad/glhd_screen.c b/src/gallium/drivers/galahad/glhd_screen.c
+index 16a5ff1..5a91077 100644
+--- a/src/gallium/drivers/galahad/glhd_screen.c
++++ b/src/gallium/drivers/galahad/glhd_screen.c
+@@ -275,7 +275,8 @@ static void
+ galahad_screen_flush_frontbuffer(struct pipe_screen *_screen,
+                                   struct pipe_resource *_resource,
+                                   unsigned level, unsigned layer,
+-                                  void *context_private)
++                                  void *context_private,
++                                  struct pipe_box *sub_box)
+ {
+    struct galahad_screen *glhd_screen = galahad_screen(_screen);
+    struct galahad_resource *glhd_resource = galahad_resource(_resource);
+@@ -285,7 +286,7 @@ galahad_screen_flush_frontbuffer(struct pipe_screen *_screen,
+    screen->flush_frontbuffer(screen,
+                              resource,
+                              level, layer,
+-                             context_private);
++                             context_private, sub_box);
+ }
+ 
+ static void
+diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
+index 556dda8..0ff2640 100644
+--- a/src/gallium/drivers/i915/i915_screen.c
++++ b/src/gallium/drivers/i915/i915_screen.c
+@@ -419,7 +419,8 @@ static void
+ i915_flush_frontbuffer(struct pipe_screen *screen,
+                        struct pipe_resource *resource,
+                        unsigned level, unsigned layer,
+-                       void *winsys_drawable_handle)
++                       void *winsys_drawable_handle,
++                       struct pipe_box *sub_box)
+ {
+    /* XXX: Dummy right now. */
+    (void)screen;
+@@ -427,6 +428,7 @@ i915_flush_frontbuffer(struct pipe_screen *screen,
+    (void)level;
+    (void)layer;
+    (void)winsys_drawable_handle;
++   (void)sub_box;
+ }
+ 
+ static void
+diff --git a/src/gallium/drivers/identity/id_screen.c b/src/gallium/drivers/identity/id_screen.c
+index 26df7f6..28cfa1f6 100644
+--- a/src/gallium/drivers/identity/id_screen.c
++++ b/src/gallium/drivers/identity/id_screen.c
+@@ -192,7 +192,8 @@ static void
+ identity_screen_flush_frontbuffer(struct pipe_screen *_screen,
+                                   struct pipe_resource *_resource,
+                                   unsigned level, unsigned layer,
+-                                  void *context_private)
++                                  void *context_private,
++                                  struct pipe_box *sub_box)
+ {
+    struct identity_screen *id_screen = identity_screen(_screen);
+    struct identity_resource *id_resource = identity_resource(_resource);
+@@ -202,7 +203,7 @@ identity_screen_flush_frontbuffer(struct pipe_screen *_screen,
+    screen->flush_frontbuffer(screen,
+                              resource,
+                              level, layer,
+-                             context_private);
++                             context_private, sub_box);
+ }
+ 
+ static void
+diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
+index b3cd77f..f488d6d 100644
+--- a/src/gallium/drivers/llvmpipe/lp_screen.c
++++ b/src/gallium/drivers/llvmpipe/lp_screen.c
+@@ -403,7 +403,8 @@ static void
+ llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
+                            struct pipe_resource *resource,
+                            unsigned level, unsigned layer,
+-                           void *context_private)
++                           void *context_private,
++                           struct pipe_box *sub_box)
+ {
+    struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
+    struct sw_winsys *winsys = screen->winsys;
+@@ -411,10 +412,9 @@ llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
+ 
+    assert(texture->dt);
+    if (texture->dt)
+-      winsys->displaytarget_display(winsys, texture->dt, context_private);
++      winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
+ }
+ 
+-
+ static void
+ llvmpipe_destroy_screen( struct pipe_screen *_screen )
+ {
+diff --git a/src/gallium/drivers/noop/noop_pipe.c b/src/gallium/drivers/noop/noop_pipe.c
+index ac837b1..849a4d1 100644
+--- a/src/gallium/drivers/noop/noop_pipe.c
++++ b/src/gallium/drivers/noop/noop_pipe.c
+@@ -288,7 +288,7 @@ static struct pipe_context *noop_create_context(struct pipe_screen *screen, void
+ static void noop_flush_frontbuffer(struct pipe_screen *_screen,
+ 				   struct pipe_resource *resource,
+ 				   unsigned level, unsigned layer,
+-				   void *context_private)
++				   void *context_private, struct pipe_box *box)
+ {
+ }
+ 
+diff --git a/src/gallium/drivers/rbug/rbug_screen.c b/src/gallium/drivers/rbug/rbug_screen.c
+index 2471fdb..8576e2f 100644
+--- a/src/gallium/drivers/rbug/rbug_screen.c
++++ b/src/gallium/drivers/rbug/rbug_screen.c
+@@ -190,7 +190,7 @@ static void
+ rbug_screen_flush_frontbuffer(struct pipe_screen *_screen,
+                               struct pipe_resource *_resource,
+                               unsigned level, unsigned layer,
+-                              void *context_private)
++                              void *context_private, struct pipe_box *sub_box)
+ {
+    struct rbug_screen *rb_screen = rbug_screen(_screen);
+    struct rbug_resource *rb_resource = rbug_resource(_resource);
+@@ -200,7 +200,7 @@ rbug_screen_flush_frontbuffer(struct pipe_screen *_screen,
+    screen->flush_frontbuffer(screen,
+                              resource,
+                              level, layer,
+-                             context_private);
++                             context_private, sub_box);
+ }
+ 
+ static void
+diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
+index f6acdc8..3e3f366 100644
+--- a/src/gallium/drivers/softpipe/sp_screen.c
++++ b/src/gallium/drivers/softpipe/sp_screen.c
+@@ -364,7 +364,8 @@ static void
+ softpipe_flush_frontbuffer(struct pipe_screen *_screen,
+                            struct pipe_resource *resource,
+                            unsigned level, unsigned layer,
+-                           void *context_private)
++                           void *context_private,
++                           struct pipe_box *sub_box)
+ {
+    struct softpipe_screen *screen = softpipe_screen(_screen);
+    struct sw_winsys *winsys = screen->winsys;
+@@ -372,7 +373,7 @@ softpipe_flush_frontbuffer(struct pipe_screen *_screen,
+ 
+    assert(texture->dt);
+    if (texture->dt)
+-      winsys->displaytarget_display(winsys, texture->dt, context_private);
++      winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
+ }
+ 
+ static uint64_t
+diff --git a/src/gallium/drivers/trace/tr_screen.c b/src/gallium/drivers/trace/tr_screen.c
+index 5281ba8..b71ebbe 100644
+--- a/src/gallium/drivers/trace/tr_screen.c
++++ b/src/gallium/drivers/trace/tr_screen.c
+@@ -210,7 +210,8 @@ static void
+ trace_screen_flush_frontbuffer(struct pipe_screen *_screen,
+                                struct pipe_resource *_resource,
+                                unsigned level, unsigned layer,
+-                               void *context_private)
++                               void *context_private,
++                               struct pipe_box *sub_box)
+ {
+    struct trace_screen *tr_scr = trace_screen(_screen);
+    struct trace_resource *tr_res = trace_resource(_resource);
+@@ -227,7 +228,7 @@ trace_screen_flush_frontbuffer(struct pipe_screen *_screen,
+    trace_dump_arg(ptr, context_private);
+    */
+ 
+-   screen->flush_frontbuffer(screen, resource, level, layer, context_private);
++   screen->flush_frontbuffer(screen, resource, level, layer, context_private, sub_box);
+ 
+    trace_dump_call_end();
+ }
+diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
+index c487e8e..c0f4fd1 100644
+--- a/src/gallium/include/pipe/p_screen.h
++++ b/src/gallium/include/pipe/p_screen.h
+@@ -56,6 +56,7 @@ struct pipe_fence_handle;
+ struct pipe_resource;
+ struct pipe_surface;
+ struct pipe_transfer;
++struct pipe_box;
+ 
+ 
+ /**
+@@ -179,13 +180,13 @@ struct pipe_screen {
+     * displayed, eg copy fake frontbuffer.
+     * \param winsys_drawable_handle  an opaque handle that the calling context
+     *                                gets out-of-band
++    * \param subbox an optional sub region to flush
+     */
+    void (*flush_frontbuffer)( struct pipe_screen *screen,
+                               struct pipe_resource *resource,
+                               unsigned level, unsigned layer,
+-                              void *winsys_drawable_handle );
+-
+-
++                              void *winsys_drawable_handle,
++                              struct pipe_box *subbox );
+ 
+    /** Set ptr = fence, with reference counting */
+    void (*fence_reference)( struct pipe_screen *screen,
+diff --git a/src/gallium/include/state_tracker/drisw_api.h b/src/gallium/include/state_tracker/drisw_api.h
+index 944a649..328440c 100644
+--- a/src/gallium/include/state_tracker/drisw_api.h
++++ b/src/gallium/include/state_tracker/drisw_api.h
+@@ -13,6 +13,8 @@ struct drisw_loader_funcs
+ {
+    void (*put_image) (struct dri_drawable *dri_drawable,
+                       void *data, unsigned width, unsigned height);
++   void (*put_image2) (struct dri_drawable *dri_drawable,
++                       void *data, int x, int y, unsigned width, unsigned height, unsigned stride);
+ };
+ 
+ /**
+diff --git a/src/gallium/include/state_tracker/sw_winsys.h b/src/gallium/include/state_tracker/sw_winsys.h
+index 0b11fe3..d08ddd6 100644
+--- a/src/gallium/include/state_tracker/sw_winsys.h
++++ b/src/gallium/include/state_tracker/sw_winsys.h
+@@ -48,7 +48,7 @@ struct winsys_handle;
+ struct pipe_screen;
+ struct pipe_context;
+ struct pipe_resource;
+-
++struct pipe_box;
+ 
+ /**
+  * Opaque pointer.
+@@ -129,7 +129,8 @@ struct sw_winsys
+    void
+    (*displaytarget_display)( struct sw_winsys *ws, 
+                              struct sw_displaytarget *dt,
+-                             void *context_private );
++                             void *context_private,
++                             struct pipe_box *box );
+ 
+    void 
+    (*displaytarget_destroy)( struct sw_winsys *ws, 
+diff --git a/src/gallium/state_trackers/dri/sw/drisw.c b/src/gallium/state_trackers/dri/sw/drisw.c
+index 121a205..aa0d3e0 100644
+--- a/src/gallium/state_trackers/dri/sw/drisw.c
++++ b/src/gallium/state_trackers/dri/sw/drisw.c
+@@ -37,6 +37,7 @@
+ #include "util/u_format.h"
+ #include "util/u_memory.h"
+ #include "util/u_inlines.h"
++#include "util/u_box.h"
+ #include "pipe/p_context.h"
+ #include "state_tracker/drisw_api.h"
+ #include "state_tracker/st_context.h"
+@@ -71,6 +72,18 @@ put_image(__DRIdrawable *dPriv, void *data, unsigned width, unsigned height)
+ }
+ 
+ static INLINE void
++put_image2(__DRIdrawable *dPriv, void *data, int x, int y,
++           unsigned width, unsigned height, unsigned stride)
++{
++   __DRIscreen *sPriv = dPriv->driScreenPriv;
++   const __DRIswrastLoaderExtension *loader = sPriv->swrast_loader;
++
++   loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
++                     x, y, width, height, stride,
++                     data, dPriv->loaderPrivate);
++}
++
++static INLINE void
+ get_image(__DRIdrawable *dPriv, int x, int y, int width, int height, void *data)
+ {
+    __DRIscreen *sPriv = dPriv->driScreenPriv;
+@@ -99,9 +112,19 @@ drisw_put_image(struct dri_drawable *drawable,
+    put_image(dPriv, data, width, height);
+ }
+ 
++static void
++drisw_put_image2(struct dri_drawable *drawable,
++                 void *data, int x, int y, unsigned width, unsigned height,
++                 unsigned stride)
++{
++   __DRIdrawable *dPriv = drawable->dPriv;
++
++   put_image2(dPriv, data, x, y, width, height, stride);
++}
++
+ static INLINE void
+ drisw_present_texture(__DRIdrawable *dPriv,
+-                      struct pipe_resource *ptex)
++                      struct pipe_resource *ptex, struct pipe_box *sub_box)
+ {
+    struct dri_drawable *drawable = dri_drawable(dPriv);
+    struct dri_screen *screen = dri_screen(drawable->sPriv);
+@@ -109,7 +132,7 @@ drisw_present_texture(__DRIdrawable *dPriv,
+    if (swrast_no_present)
+       return;
+ 
+-   screen->base.screen->flush_frontbuffer(screen->base.screen, ptex, 0, 0, drawable);
++   screen->base.screen->flush_frontbuffer(screen->base.screen, ptex, 0, 0, drawable, sub_box);
+ }
+ 
+ static INLINE void
+@@ -126,7 +149,7 @@ static INLINE void
+ drisw_copy_to_front(__DRIdrawable * dPriv,
+                     struct pipe_resource *ptex)
+ {
+-   drisw_present_texture(dPriv, ptex);
++   drisw_present_texture(dPriv, ptex, NULL);
+ 
+    drisw_invalidate_drawable(dPriv);
+ }
+@@ -158,6 +181,30 @@ drisw_swap_buffers(__DRIdrawable *dPriv)
+ }
+ 
+ static void
++drisw_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y,
++                      int w, int h)
++{
++   struct dri_context *ctx = dri_get_current(dPriv->driScreenPriv);
++   struct dri_drawable *drawable = dri_drawable(dPriv);
++   struct pipe_resource *ptex;
++   struct pipe_box box;
++   if (!ctx)
++      return;
++
++   ptex = drawable->textures[ST_ATTACHMENT_BACK_LEFT];
++
++   if (ptex) {
++      if (ctx->pp && drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL])
++         pp_run(ctx->pp, ptex, ptex, drawable->textures[ST_ATTACHMENT_DEPTH_STENCIL]);
++
++      ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL);
++
++      u_box_2d(x, dPriv->h - y - h, w, h, &box);
++      drisw_present_texture(dPriv, ptex, &box);
++   }
++}
++
++static void
+ drisw_flush_frontbuffer(struct dri_context *ctx,
+                         struct dri_drawable *drawable,
+                         enum st_attachment_type statt)
+@@ -288,7 +335,8 @@ static const __DRIextension *drisw_screen_extensions[] = {
+ };
+ 
+ static struct drisw_loader_funcs drisw_lf = {
+-   .put_image = drisw_put_image
++   .put_image = drisw_put_image,
++   .put_image2 = drisw_put_image2
+ };
+ 
+ static const __DRIconfig **
+@@ -359,12 +407,14 @@ const struct __DriverAPIRec driDriverAPI = {
+    .SwapBuffers = drisw_swap_buffers,
+    .MakeCurrent = dri_make_current,
+    .UnbindContext = dri_unbind_context,
++   .CopySubBuffer = drisw_copy_sub_buffer,
+ };
+ 
+ /* This is the table of extensions that the loader will dlsym() for. */
+ PUBLIC const __DRIextension *__driDriverExtensions[] = {
+     &driCoreExtension.base,
+     &driSWRastExtension.base,
++    &driCopySubBufferExtension.base,
+     NULL
+ };
+ 
+diff --git a/src/gallium/state_trackers/egl/common/native_helper.c b/src/gallium/state_trackers/egl/common/native_helper.c
+index b578a8a..5c2be19 100644
+--- a/src/gallium/state_trackers/egl/common/native_helper.c
++++ b/src/gallium/state_trackers/egl/common/native_helper.c
+@@ -244,7 +244,7 @@ resource_surface_present(struct resource_surface *rsurf,
+       return TRUE;
+ 
+    rsurf->screen->flush_frontbuffer(rsurf->screen,
+-         pres, 0, 0, winsys_drawable_handle);
++         pres, 0, 0, winsys_drawable_handle, NULL);
+ 
+    return TRUE;
+ }
+diff --git a/src/gallium/state_trackers/egl/x11/native_ximage.c b/src/gallium/state_trackers/egl/x11/native_ximage.c
+index 28c6442..019e535 100644
+--- a/src/gallium/state_trackers/egl/x11/native_ximage.c
++++ b/src/gallium/state_trackers/egl/x11/native_ximage.c
+@@ -476,7 +476,7 @@ ximage_display_copy_to_pixmap(struct native_display *ndpy,
+       xdraw.drawable = (Drawable) pix;
+ 
+       xdpy->base.screen->flush_frontbuffer(xdpy->base.screen,
+-            src, 0, 0, &xdraw);
++            src, 0, 0, &xdraw, NULL);
+ 
+       return TRUE;
+    }
+diff --git a/src/gallium/state_trackers/glx/xlib/xm_st.c b/src/gallium/state_trackers/glx/xlib/xm_st.c
+index fb69998..7f73a3a 100644
+--- a/src/gallium/state_trackers/glx/xlib/xm_st.c
++++ b/src/gallium/state_trackers/glx/xlib/xm_st.c
+@@ -74,7 +74,7 @@ xmesa_st_framebuffer_display(struct st_framebuffer_iface *stfbi,
+       pres = xstfb->display_resource;
+    }
+ 
+-   xstfb->screen->flush_frontbuffer(xstfb->screen, pres, 0, 0, &xstfb->buffer->ws);
++   xstfb->screen->flush_frontbuffer(xstfb->screen, pres, 0, 0, &xstfb->buffer->ws, NULL);
+    return TRUE;
+ }
+ 
+diff --git a/src/gallium/state_trackers/vdpau/presentation.c b/src/gallium/state_trackers/vdpau/presentation.c
+index c9f8ea7..e68e25f 100644
+--- a/src/gallium/state_trackers/vdpau/presentation.c
++++ b/src/gallium/state_trackers/vdpau/presentation.c
+@@ -269,7 +269,7 @@ vlVdpPresentationQueueDisplay(VdpPresentationQueue presentation_queue,
+    pipe->screen->flush_frontbuffer
+    (
+       pipe->screen, tex, 0, 0,
+-      vl_screen_get_private(pq->device->vscreen)
++      vl_screen_get_private(pq->device->vscreen), NULL
+    );
+ 
+    pipe->screen->fence_reference(pipe->screen, &surf->fence, NULL);
+diff --git a/src/gallium/state_trackers/xvmc/surface.c b/src/gallium/state_trackers/xvmc/surface.c
+index 6a895aa..ea778a3 100644
+--- a/src/gallium/state_trackers/xvmc/surface.c
++++ b/src/gallium/state_trackers/xvmc/surface.c
+@@ -441,7 +441,7 @@ Status XvMCPutSurface(Display *dpy, XvMCSurface *surface, Drawable drawable,
+    pipe->screen->flush_frontbuffer
+    (
+       pipe->screen, tex, 0, 0,
+-      vl_screen_get_private(context_priv->vscreen)
++      vl_screen_get_private(context_priv->vscreen), NULL
+    );
+ 
+    if(dump_window == -1) {
+diff --git a/src/gallium/tests/graw/clear.c b/src/gallium/tests/graw/clear.c
+index 77c59db..f38da47 100644
+--- a/src/gallium/tests/graw/clear.c
++++ b/src/gallium/tests/graw/clear.c
+@@ -33,7 +33,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, tex, 0, 0, window);
++   screen->flush_frontbuffer(screen, tex, 0, 0, window, NULL);
+ }
+ 
+ static void init( void )
+diff --git a/src/gallium/tests/graw/fs-test.c b/src/gallium/tests/graw/fs-test.c
+index 38a2c4b..a01c014 100644
+--- a/src/gallium/tests/graw/fs-test.c
++++ b/src/gallium/tests/graw/fs-test.c
+@@ -240,7 +240,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, rttex, 0, 0, window);
++   screen->flush_frontbuffer(screen, rttex, 0, 0, window, NULL);
+ }
+ 
+ #define SIZE 16
+diff --git a/src/gallium/tests/graw/graw_util.h b/src/gallium/tests/graw/graw_util.h
+index 8557285..1856f0d 100644
+--- a/src/gallium/tests/graw/graw_util.h
++++ b/src/gallium/tests/graw/graw_util.h
+@@ -211,7 +211,7 @@ static INLINE void
+ graw_util_flush_front(const struct graw_info *info)
+ {
+    info->screen->flush_frontbuffer(info->screen, info->color_buf[0],
+-                                   0, 0, info->window);
++                                   0, 0, info->window, NULL);
+ }
+ 
+ 
+diff --git a/src/gallium/tests/graw/gs-test.c b/src/gallium/tests/graw/gs-test.c
+index e4e4f61..1745c84 100644
+--- a/src/gallium/tests/graw/gs-test.c
++++ b/src/gallium/tests/graw/gs-test.c
+@@ -347,7 +347,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, rttex, 0, 0, window);
++   screen->flush_frontbuffer(screen, rttex, 0, 0, window, NULL);
+ }
+ 
+ #define SIZE 16
+diff --git a/src/gallium/tests/graw/quad-sample.c b/src/gallium/tests/graw/quad-sample.c
+index 969ffa7..9960c30 100644
+--- a/src/gallium/tests/graw/quad-sample.c
++++ b/src/gallium/tests/graw/quad-sample.c
+@@ -156,7 +156,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, rttex, 0, 0, window);
++   screen->flush_frontbuffer(screen, rttex, 0, 0, window, NULL);
+ }
+ 
+ #define SIZE 16
+diff --git a/src/gallium/tests/graw/shader-leak.c b/src/gallium/tests/graw/shader-leak.c
+index 4ef752b..754ada6 100644
+--- a/src/gallium/tests/graw/shader-leak.c
++++ b/src/gallium/tests/graw/shader-leak.c
+@@ -158,7 +158,7 @@ static void draw( void )
+       ctx->delete_fs_state(ctx, fs);
+    }
+ 
+-   screen->flush_frontbuffer(screen, tex, 0, 0, window);
++   screen->flush_frontbuffer(screen, tex, 0, 0, window, NULL);
+    ctx->destroy(ctx);
+ 
+    exit(0);
+diff --git a/src/gallium/tests/graw/tri-gs.c b/src/gallium/tests/graw/tri-gs.c
+index 37323aa..24de12b 100644
+--- a/src/gallium/tests/graw/tri-gs.c
++++ b/src/gallium/tests/graw/tri-gs.c
+@@ -168,7 +168,7 @@ static void draw( void )
+    util_draw_arrays(ctx, PIPE_PRIM_TRIANGLES, 0, 3);
+    ctx->flush(ctx, NULL, 0);
+ 
+-   screen->flush_frontbuffer(screen, tex, 0, 0, window);
++   screen->flush_frontbuffer(screen, tex, 0, 0, window, NULL);
+ }
+ 
+ 
+diff --git a/src/gallium/tests/graw/tri-instanced.c b/src/gallium/tests/graw/tri-instanced.c
+index f84463d..55bc3a5 100644
+--- a/src/gallium/tests/graw/tri-instanced.c
++++ b/src/gallium/tests/graw/tri-instanced.c
+@@ -219,7 +219,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, tex, 0, 0, window);
++   screen->flush_frontbuffer(screen, tex, 0, 0, window, NULL);
+ }
+ 
+ 
+diff --git a/src/gallium/tests/graw/vs-test.c b/src/gallium/tests/graw/vs-test.c
+index 5a7d0a0..ce1941d 100644
+--- a/src/gallium/tests/graw/vs-test.c
++++ b/src/gallium/tests/graw/vs-test.c
+@@ -234,7 +234,7 @@ static void draw( void )
+ 
+    graw_save_surface_to_file(ctx, surf, NULL);
+ 
+-   screen->flush_frontbuffer(screen, rttex, 0, 0, window);
++   screen->flush_frontbuffer(screen, rttex, 0, 0, window, NULL);
+ }
+ 
+ #define SIZE 16
+diff --git a/src/gallium/winsys/sw/android/android_sw_winsys.cpp b/src/gallium/winsys/sw/android/android_sw_winsys.cpp
+index cb91aad..4b1040c 100644
+--- a/src/gallium/winsys/sw/android/android_sw_winsys.cpp
++++ b/src/gallium/winsys/sw/android/android_sw_winsys.cpp
+@@ -74,7 +74,8 @@ namespace android {
+ static void
+ android_displaytarget_display(struct sw_winsys *ws,
+                               struct sw_displaytarget *dt,
+-                              void *context_private)
++                              void *context_private,
++                              struct pipe_box *box)
+ {
+ }
+ 
+diff --git a/src/gallium/winsys/sw/dri/dri_sw_winsys.c b/src/gallium/winsys/sw/dri/dri_sw_winsys.c
+index edb3a38..6fed22b 100644
+--- a/src/gallium/winsys/sw/dri/dri_sw_winsys.c
++++ b/src/gallium/winsys/sw/dri/dri_sw_winsys.c
+@@ -166,25 +166,33 @@ dri_sw_displaytarget_get_handle(struct sw_winsys *winsys,
+ static void
+ dri_sw_displaytarget_display(struct sw_winsys *ws,
+                              struct sw_displaytarget *dt,
+-                             void *context_private)
++                             void *context_private,
++                             struct pipe_box *box)
+ {
+    struct dri_sw_winsys *dri_sw_ws = dri_sw_winsys(ws);
+    struct dri_sw_displaytarget *dri_sw_dt = dri_sw_displaytarget(dt);
+    struct dri_drawable *dri_drawable = (struct dri_drawable *)context_private;
+    unsigned width, height;
++   unsigned blsize = util_format_get_blocksize(dri_sw_dt->format);
+ 
+    /* Set the width to 'stride / cpp'.
+     *
+     * PutImage correctly clips to the width of the dst drawable.
+     */
+-   width = dri_sw_dt->stride / util_format_get_blocksize(dri_sw_dt->format);
++   width = dri_sw_dt->stride / blsize;
+ 
+    height = dri_sw_dt->height;
+ 
+-   dri_sw_ws->lf->put_image(dri_drawable, dri_sw_dt->data, width, height);
++   if (box) {
++       void *data;
++       data = dri_sw_dt->data + (dri_sw_dt->stride * box->y) + box->x * blsize;
++       dri_sw_ws->lf->put_image2(dri_drawable, data,
++                                 box->x, box->y, box->width, box->height, dri_sw_dt->stride);
++   } else {
++       dri_sw_ws->lf->put_image(dri_drawable, dri_sw_dt->data, width, height);
++   }
+ }
+ 
+-
+ static void
+ dri_destroy_sw_winsys(struct sw_winsys *winsys)
+ {
+diff --git a/src/gallium/winsys/sw/fbdev/fbdev_sw_winsys.c b/src/gallium/winsys/sw/fbdev/fbdev_sw_winsys.c
+index a280985..cc3ce1a 100644
+--- a/src/gallium/winsys/sw/fbdev/fbdev_sw_winsys.c
++++ b/src/gallium/winsys/sw/fbdev/fbdev_sw_winsys.c
+@@ -74,7 +74,8 @@ fbdev_sw_winsys(struct sw_winsys *ws)
+ static void
+ fbdev_displaytarget_display(struct sw_winsys *ws,
+                             struct sw_displaytarget *dt,
+-                            void *winsys_private)
++                            void *winsys_private,
++                            struct pipe_box *box)
+ {
+    struct fbdev_sw_winsys *fbdev = fbdev_sw_winsys(ws);
+    struct fbdev_sw_displaytarget *src = fbdev_sw_displaytarget(dt);
+diff --git a/src/gallium/winsys/sw/gdi/gdi_sw_winsys.c b/src/gallium/winsys/sw/gdi/gdi_sw_winsys.c
+index 2e12f6e..aae3ec5 100644
+--- a/src/gallium/winsys/sw/gdi/gdi_sw_winsys.c
++++ b/src/gallium/winsys/sw/gdi/gdi_sw_winsys.c
+@@ -207,7 +207,8 @@ gdi_sw_display( struct sw_winsys *winsys,
+ static void
+ gdi_sw_displaytarget_display(struct sw_winsys *winsys, 
+                              struct sw_displaytarget *dt,
+-                             void *context_private)
++                             void *context_private,
++                             struct pipe_box *box)
+ {
+     /* nasty:
+      */
+diff --git a/src/gallium/winsys/sw/hgl/hgl_sw_winsys.c b/src/gallium/winsys/sw/hgl/hgl_sw_winsys.c
+index 1d51dd6..f09272a 100644
+--- a/src/gallium/winsys/sw/hgl/hgl_sw_winsys.c
++++ b/src/gallium/winsys/sw/hgl/hgl_sw_winsys.c
+@@ -147,7 +147,8 @@ hgl_winsys_displaytarget_unmap(struct sw_winsys* winsys,
+ 
+ static void
+ hgl_winsys_displaytarget_display(struct sw_winsys* winsys,
+-	struct sw_displaytarget* displayTarget, void* contextPrivate)
++	struct sw_displaytarget* displayTarget, void* contextPrivate,
++	struct pipe_box *box)
+ {
+ 	assert(contextPrivate);
+ 
+diff --git a/src/gallium/winsys/sw/null/null_sw_winsys.c b/src/gallium/winsys/sw/null/null_sw_winsys.c
+index 44849da..9c8b3ec 100644
+--- a/src/gallium/winsys/sw/null/null_sw_winsys.c
++++ b/src/gallium/winsys/sw/null/null_sw_winsys.c
+@@ -114,7 +114,8 @@ null_sw_displaytarget_get_handle(struct sw_winsys *winsys,
+ static void
+ null_sw_displaytarget_display(struct sw_winsys *winsys,
+                               struct sw_displaytarget *dt,
+-                              void *context_private)
++                              void *context_private,
++                              struct pipe_box *box)
+ {
+    assert(0);
+ }
+diff --git a/src/gallium/winsys/sw/wayland/wayland_sw_winsys.c b/src/gallium/winsys/sw/wayland/wayland_sw_winsys.c
+index f432de9..e428613 100644
+--- a/src/gallium/winsys/sw/wayland/wayland_sw_winsys.c
++++ b/src/gallium/winsys/sw/wayland/wayland_sw_winsys.c
+@@ -75,7 +75,8 @@ wayland_sw_winsys(struct sw_winsys *ws)
+ static void
+ wayland_displaytarget_display(struct sw_winsys *ws,
+                               struct sw_displaytarget *dt,
+-                              void *context_private)
++                              void *context_private,
++                              struct pipe_box *box)
+ {
+ }
+ 
+diff --git a/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c b/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c
+index 6e71530..99da2ae 100644
+--- a/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c
++++ b/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c
+@@ -376,7 +376,8 @@ xlib_sw_display(struct xlib_drawable *xlib_drawable,
+ static void
+ xlib_displaytarget_display(struct sw_winsys *ws,
+                            struct sw_displaytarget *dt,
+-                           void *context_private)
++                           void *context_private,
++                           struct pipe_box *box)
+ {
+    struct xlib_drawable *xlib_drawable = (struct xlib_drawable *)context_private;
+    xlib_sw_display(xlib_drawable, dt);
+diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
+index 393be20..f903b2d 100644
+--- a/src/glx/drisw_glx.c
++++ b/src/glx/drisw_glx.c
+@@ -49,6 +49,7 @@ struct drisw_screen
+    const __DRIcoreExtension *core;
+    const __DRIswrastExtension *swrast;
+    const __DRItexBufferExtension *texBuffer;
++   const __DRIcopySubBufferExtension *copySubBuffer;
+ 
+    const __DRIconfig **driver_configs;
+ 
+@@ -171,9 +172,9 @@ bytes_per_line(unsigned pitch_bits, unsigned mul)
+ }
+ 
+ static void
+-swrastPutImage(__DRIdrawable * draw, int op,
+-               int x, int y, int w, int h,
+-               char *data, void *loaderPrivate)
++swrastPutImage2(__DRIdrawable * draw, int op,
++                int x, int y, int w, int h, int stride,
++                char *data, void *loaderPrivate)
+ {
+    struct drisw_drawable *pdp = loaderPrivate;
+    __GLXDRIdrawable *pdraw = &(pdp->base);
+@@ -199,7 +200,7 @@ swrastPutImage(__DRIdrawable * draw, int op,
+    ximage->data = data;
+    ximage->width = w;
+    ximage->height = h;
+-   ximage->bytes_per_line = bytes_per_line(w * ximage->bits_per_pixel, 32);
++   ximage->bytes_per_line = stride ? stride : bytes_per_line(w * ximage->bits_per_pixel, 32);
+ 
+    XPutImage(dpy, drawable, gc, ximage, 0, 0, x, y, w, h);
+ 
+@@ -207,6 +208,14 @@ swrastPutImage(__DRIdrawable * draw, int op,
+ }
+ 
+ static void
++swrastPutImage(__DRIdrawable * draw, int op,
++               int x, int y, int w, int h,
++               char *data, void *loaderPrivate)
++{
++   swrastPutImage2(draw, op, x, y, w, h, 0, data, loaderPrivate);
++}
++
++static void
+ swrastGetImage(__DRIdrawable * read,
+                int x, int y, int w, int h,
+                char *data, void *loaderPrivate)
+@@ -234,7 +243,8 @@ static const __DRIswrastLoaderExtension swrastLoaderExtension = {
+    {__DRI_SWRAST_LOADER, __DRI_SWRAST_LOADER_VERSION},
+    swrastGetDrawableInfo,
+    swrastPutImage,
+-   swrastGetImage
++   swrastGetImage,
++   swrastPutImage2,
+ };
+ 
+ static const __DRIextension *loader_extensions[] = {
+@@ -585,6 +595,21 @@ driswSwapBuffers(__GLXDRIdrawable * pdraw,
+ }
+ 
+ static void
++driswCopySubBuffer(__GLXDRIdrawable * pdraw,
++                   int x, int y, int width, int height, Bool flush)
++{
++   struct drisw_drawable *pdp = (struct drisw_drawable *) pdraw;
++   struct drisw_screen *psc = (struct drisw_screen *) pdp->base.psc;
++
++   if (flush) {
++      glFlush();
++   }
++
++   (*psc->copySubBuffer->copySubBuffer) (pdp->driDrawable,
++					    x, y, width, height);
++}
++
++static void
+ driswDestroyScreen(struct glx_screen *base)
+ {
+    struct drisw_screen *psc = (struct drisw_screen *) base;
+@@ -632,6 +657,9 @@ driswBindExtensions(struct drisw_screen *psc, const __DRIextension **extensions)
+ 				 "GLX_EXT_create_context_es2_profile");
+    }
+ 
++   if (psc->copySubBuffer)
++      __glXEnableDirectExtension(&psc->base, "GLX_MESA_copy_sub_buffer");      
++
+    /* FIXME: Figure out what other extensions can be ported here from dri2. */
+    for (i = 0; extensions[i]; i++) {
+       if ((strcmp(extensions[i]->name, __DRI_TEX_BUFFER) == 0)) {
+@@ -675,6 +703,8 @@ driswCreateScreen(int screen, struct glx_display *priv)
+ 	 psc->core = (__DRIcoreExtension *) extensions[i];
+       if (strcmp(extensions[i]->name, __DRI_SWRAST) == 0)
+ 	 psc->swrast = (__DRIswrastExtension *) extensions[i];
++      if (strcmp(extensions[i]->name, __DRI_COPY_SUB_BUFFER) == 0)
++	 psc->copySubBuffer = (__DRIcopySubBufferExtension *) extensions[i];
+    }
+ 
+    if (psc->core == NULL || psc->swrast == NULL) {
+@@ -713,6 +743,9 @@ driswCreateScreen(int screen, struct glx_display *priv)
+    psp->createDrawable = driswCreateDrawable;
+    psp->swapBuffers = driswSwapBuffers;
+ 
++   if (psc->copySubBuffer)
++      psp->copySubBuffer = driswCopySubBuffer;
++
+    return &psc->base;
+ 
+  handle_error:
+diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h
+index 900f048..4c71fe4 100644
+--- a/src/mesa/drivers/dri/common/dri_util.h
++++ b/src/mesa/drivers/dri/common/dri_util.h
+@@ -65,7 +65,7 @@ extern const __DRIcoreExtension driCoreExtension;
+ extern const __DRIswrastExtension driSWRastExtension;
+ extern const __DRIdri2Extension driDRI2Extension;
+ extern const __DRI2configQueryExtension dri2ConfigQueryExtension;
+-
++extern const __DRIcopySubBufferExtension driCopySubBufferExtension;
+ /**
+  * Driver callback functions.
+  *
+@@ -113,6 +113,9 @@ struct __DriverAPIRec {
+                                     int width, int height);
+ 
+     void (*ReleaseBuffer) (__DRIscreen *screenPrivate, __DRIbuffer *buffer);
++
++    void (*CopySubBuffer)(__DRIdrawable *driDrawPriv, int x, int y,
++                          int w, int h);
+ };
+ 
+ extern const struct __DriverAPIRec driDriverAPI;
+diff --git a/src/mesa/drivers/dri/common/drisw_util.c b/src/mesa/drivers/dri/common/drisw_util.c
+index 89f03c3..0da4142 100644
+--- a/src/mesa/drivers/dri/common/drisw_util.c
++++ b/src/mesa/drivers/dri/common/drisw_util.c
+@@ -373,3 +373,18 @@ const __DRIswrastExtension driSWRastExtension = {
+     driCreateNewContextForAPI,
+     driCreateContextAttribs
+ };
++
++/* swrast copy sub buffer entrypoint. */
++static void driCopySubBuffer(__DRIdrawable *pdp, int x, int y,
++                             int w, int h)
++{
++    assert(pdp->driScreenPriv->swrast_loader);
++
++    driDriverAPI.CopySubBuffer(pdp, x, y, w, h);
++}
++
++/* for swrast only */
++const __DRIcopySubBufferExtension driCopySubBufferExtension = {
++   { __DRI_COPY_SUB_BUFFER, 1 },
++   .copySubBuffer = driCopySubBuffer,
++};
+diff --git a/src/mesa/drivers/dri/swrast/swrast.c b/src/mesa/drivers/dri/swrast/swrast.c
+index 3870673..eb6d23b 100644
+--- a/src/mesa/drivers/dri/swrast/swrast.c
++++ b/src/mesa/drivers/dri/swrast/swrast.c
+@@ -830,6 +830,39 @@ dri_unbind_context(__DRIcontext * cPriv)
+     return GL_TRUE;
+ }
+ 
++static void
++dri_copy_sub_buffer(__DRIdrawable *dPriv, int x, int y,
++                    int w, int h)
++{
++    __DRIscreen *sPriv = dPriv->driScreenPriv;
++    void *data;
++    int iy;
++    struct dri_drawable *drawable = dri_drawable(dPriv);
++    struct gl_framebuffer *fb;
++    struct dri_swrast_renderbuffer *frontrb, *backrb;
++
++    TRACE;
++
++    fb = &drawable->Base;
++
++    frontrb =
++	dri_swrast_renderbuffer(fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer);
++    backrb =
++	dri_swrast_renderbuffer(fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer);
++
++    /* check for signle-buffered */
++    if (backrb == NULL)
++       return;
++
++    iy = frontrb->Base.Base.Height - y - h;
++    data = (char *)backrb->Base.Buffer + (iy * backrb->pitch) + (x * ((backrb->bpp + 7) / 8));
++    sPriv->swrast_loader->putImage2(dPriv, __DRI_SWRAST_IMAGE_OP_SWAP,
++                                    x, iy, w, h,
++                                    frontrb->pitch,
++                                    data,
++                                    dPriv->loaderPrivate);
++}
++
+ 
+ const struct __DriverAPIRec driDriverAPI = {
+     .InitScreen = dri_init_screen,
+@@ -841,11 +874,13 @@ const struct __DriverAPIRec driDriverAPI = {
+     .SwapBuffers = dri_swap_buffers,
+     .MakeCurrent = dri_make_current,
+     .UnbindContext = dri_unbind_context,
++    .CopySubBuffer = dri_copy_sub_buffer,
+ };
+ 
+ /* This is the table of extensions that the loader will dlsym() for. */
+ PUBLIC const __DRIextension *__driDriverExtensions[] = {
+     &driCoreExtension.base,
+     &driSWRastExtension.base,
++    &driCopySubBufferExtension.base,
+     NULL
+ };
+-- 
+1.8.3.1
+
diff --git a/mesa.spec b/mesa.spec
index e941de1..f5b3304 100644
--- a/mesa.spec
+++ b/mesa.spec
@@ -54,7 +54,7 @@
 Summary: Mesa graphics libraries
 Name: mesa
 Version: 9.2.4
-Release: 1.%{gitdate}%{?dist}
+Release: 2.%{gitdate}%{?dist}
 License: MIT
 Group: System Environment/Libraries
 URL: http://www.mesa3d.org
@@ -77,6 +77,9 @@ Patch15: mesa-9.2-hardware-float.patch
 Patch16: mesa-9.2-no-useless-vdpau.patch
 Patch20: mesa-9.2-evergreen-big-endian.patch
 
+# add GLX_MESA_copy_sub_buffer to all sw drivers for cogl/gnome
+Patch30: 0001-swrast-gallium-classic-add-MESA_copy_sub_buffer-supp.patch
+
 BuildRequires: pkgconfig autoconf automake libtool
 %if %{with_hardware}
 BuildRequires: kernel-headers
@@ -302,6 +305,8 @@ grep -q ^/ src/gallium/auxiliary/vl/vl_decoder.c && exit 1
 %patch16 -p1 -b .vdpau
 %patch20 -p1 -b .egbe
 
+%patch30 -p1 -b .copy_sub_buffer
+
 %if 0%{with_private_llvm}
 sed -i 's/llvm-config/mesa-private-llvm-config-%{__isa_bits}/g' configure.ac
 sed -i 's/`$LLVM_CONFIG --version`/&-mesa/' configure.ac
@@ -600,6 +605,9 @@ rm -rf $RPM_BUILD_ROOT
 %endif
 
 %changelog
+* Fri Dec 13 2013 Dave Airlie <airlied at redhat.com> 9.2.4-2.20131128
+- backport the GLX_MESA_copy_sub_buffer from upstream for cogl
+
 * Thu Nov 28 2013 Igor Gnatenko <i.gnatenko.brain at gmail.com> - 9.2.4-1.20131128
 - 9.2.4 upstream release
 


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