Merge remote-tracking branch 'origin/released'

Conflicts:
	apps/xwininfo/configure.ac
	libX11/configure.ac
	mesalib/src/glsl/ast_function.cpp
	mesalib/src/glsl/ast_to_hir.cpp
	mesalib/src/glsl/glsl_parser_extras.cpp
	mesalib/src/glsl/glsl_parser_extras.h
	mesalib/src/glsl/ir.cpp
	mesalib/src/glsl/ir.h
	mesalib/src/glsl/ir_constant_expression.cpp
	mesalib/src/glsl/ir_validate.cpp
	mesalib/src/glsl/lower_mat_op_to_vec.cpp
	mesalib/src/mesa/program/ir_to_mesa.cpp
	mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
	mesalib/src/mesa/state_tracker/st_cb_texture.c
	mesalib/src/mesa/state_tracker/st_context.h
	mesalib/src/mesa/state_tracker/st_format.h
	mkfontscale/configure.ac
	xorg-server/Xext/xvmc.c
	xorg-server/configure.ac
	xorg-server/dix/Makefile.am
	xorg-server/fb/fbarc.c
	xorg-server/fb/fbgc.c
	xorg-server/glx/glapi_gentable.c
	xorg-server/glx/glxdri2.c
	xorg-server/glx/glxscreens.c
	xorg-server/hw/xfree86/Makefile.am
	xorg-server/hw/xfree86/loader/Makefile.am
	xorg-server/hw/xquartz/X11Application.m
	xorg-server/hw/xquartz/mach-startup/Makefile.am
	xorg-server/hw/xwin/XWin.rc
	xorg-server/hw/xwin/winmultiwindowwindow.c
	xorg-server/hw/xwin/winmultiwindowwndproc.c
	xorg-server/os/Makefile.am
	xorg-server/test/Makefile.am
	xorg-server/xfixes/region.c
	xorg-server/xkeyboard-config/symbols/ma

8 files changed, 208 insertions, 183 deletions

diff --git a/mesalib/src/mesa/main/version.h b/mesalib/src/mesa/main/version.h
index ffe21fea5..0a0512c33 100644
--- a/mesalib/src/mesa/main/version.h
+++ b/mesalib/src/mesa/main/version.h
@@ -1,60 +1,60 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.11

- *

- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

- * 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, 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.

- */

-

-

-#ifndef VERSION_H

-#define VERSION_H

-

-

-struct gl_context;

-

-

-/* Mesa version */

-#define MESA_MAJOR 7

-#define MESA_MINOR 11

-#define MESA_PATCH 0

-#define MESA_VERSION_STRING "7.11-devel"

-

-/* To make version comparison easy */

-#define MESA_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

-#define MESA_VERSION_CODE MESA_VERSION(MESA_MAJOR, MESA_MINOR, MESA_PATCH)

-

-

-/* OpenGL API version */

-#define OPENGL_MAJOR 2

-#define OPENGL_MINOR 1

-#define OPENGL_PATCH 0

-#define OPENGL_VERSION_STRING "2.1"

-

-/* To make version comparison easy */

-#define OPENGL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))

-#define OPENGL_VERSION_CODE OPENGL_VERSION(OPENGL_MAJOR, OPENGL_MINOR, OPENGL_PATCH)

-

-

-extern void

-_mesa_compute_version(struct gl_context *ctx);

-

-

-#endif /* VERSION_H */

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.11
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * 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, 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.
+ */
+
+
+#ifndef VERSION_H
+#define VERSION_H
+
+
+struct gl_context;
+
+
+/* Mesa version */
+#define MESA_MAJOR 7
+#define MESA_MINOR 12
+#define MESA_PATCH 0
+#define MESA_VERSION_STRING "7.12-devel"
+
+/* To make version comparison easy */
+#define MESA_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+#define MESA_VERSION_CODE MESA_VERSION(MESA_MAJOR, MESA_MINOR, MESA_PATCH)
+
+
+/* OpenGL API version */
+#define OPENGL_MAJOR 2
+#define OPENGL_MINOR 1
+#define OPENGL_PATCH 0
+#define OPENGL_VERSION_STRING "2.1"
+
+/* To make version comparison easy */
+#define OPENGL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+#define OPENGL_VERSION_CODE OPENGL_VERSION(OPENGL_MAJOR, OPENGL_MINOR, OPENGL_PATCH)
+
+
+extern void
+_mesa_compute_version(struct gl_context *ctx);
+
+
+#endif /* VERSION_H */
diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index 9bd7840e5..cc68f83dc 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -1296,8 +1296,11 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
       emit_scalar(ir, OPCODE_RSQ, result_dst, op[0]);

       break;

    case ir_unop_i2f:

+   case ir_unop_u2f:

    case ir_unop_b2f:

    case ir_unop_b2i:

+   case ir_unop_i2u:

+   case ir_unop_u2i:

       /* Mesa IR lacks types, ints are stored as truncated floats. */

       result_src = op[0];

       break;

@@ -1335,7 +1338,6 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
       break;

 

    case ir_unop_bit_not:

-   case ir_unop_u2f:

    case ir_binop_lshift:

    case ir_binop_rshift:

    case ir_binop_bit_and:

diff --git a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
index c76fcbbac..cf0823a09 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1400,14 +1400,14 @@ st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
       /* srcFormat can't be used as a texture format */

       if (type == GL_DEPTH) {

          texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,

-                                      st->internal_target, GL_NONE, GL_NONE,

+                                      GL_NONE, GL_NONE, st->internal_target,

 				      sample_count, PIPE_BIND_DEPTH_STENCIL);

          assert(texFormat != PIPE_FORMAT_NONE);

       }

       else {

          /* default color format */

          texFormat = st_choose_format(screen, GL_RGBA,

-                                      st->internal_target, GL_NONE, GL_NONE,

+                                      GL_NONE, GL_NONE, st->internal_target,

                                       sample_count, PIPE_BIND_SAMPLER_VIEW);

          assert(texFormat != PIPE_FORMAT_NONE);

       }

diff --git a/mesalib/src/mesa/state_tracker/st_cb_texture.c b/mesalib/src/mesa/state_tracker/st_cb_texture.c
index ce289fc6b..1b75f699d 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_texture.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_texture.c
@@ -842,7 +842,7 @@ decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level,
    else {

       /* format translation via floats */

       GLuint row;

-      enum pipe_format format = util_format_linear(dst_texture->format);

+      enum pipe_format pformat = util_format_linear(dst_texture->format);

       for (row = 0; row < height; row++) {

          const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */

          GLfloat rgba[4 * MAX_WIDTH];

@@ -854,7 +854,7 @@ decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level,
 

          /* get float[4] rgba row from surface */

          pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1,

-                                   format, rgba);

+                                   pformat, rgba);

 

          _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,

                                     type, dest, &ctx->Pack, transferOps);

diff --git a/mesalib/src/mesa/state_tracker/st_cb_viewport.c b/mesalib/src/mesa/state_tracker/st_cb_viewport.c
index a61e3d4d4..d4742eb89 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_viewport.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_viewport.c
@@ -1,71 +1,78 @@
-/**************************************************************************

- *

- * 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR

- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- *

- **************************************************************************/

-

-#include "main/glheader.h"

-#include "st_context.h"

-#include "st_cb_viewport.h"

-

-#include "pipe/p_state.h"

-#include "pipe/p_defines.h"

-#include "util/u_atomic.h"

-

-/**

- * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.

- * Return NULL if the struct gl_framebuffer is a user-created framebuffer.

- * We'll only return non-null for window system framebuffers.

- * Note that this function may fail.

- */

-static INLINE struct st_framebuffer *

-st_ws_framebuffer(struct gl_framebuffer *fb)

-{

-   /* FBO cannot be casted.  See st_new_framebuffer */

-   return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL);

-}

-

-static void st_viewport(struct gl_context * ctx, GLint x, GLint y,

-                        GLsizei width, GLsizei height)

-{

-   struct st_context *st = ctx->st;

-   struct st_framebuffer *stdraw;

-   struct st_framebuffer *stread;

-

-   if (!st->invalidate_on_gl_viewport)

-      return;

-

-   stdraw = st_ws_framebuffer(st->ctx->DrawBuffer);

-   stread = st_ws_framebuffer(st->ctx->ReadBuffer);

-

-   if (stdraw)

-      p_atomic_set(&stdraw->revalidate, TRUE);

-   if (stread && stread != stdraw)

-      p_atomic_set(&stread->revalidate, TRUE);

-}

-

-void st_init_viewport_functions(struct dd_function_table *functions)

-{

-   functions->Viewport = st_viewport;

-}

+/**************************************************************************
+ *
+ * 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "main/glheader.h"
+#include "st_context.h"
+#include "st_cb_viewport.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include "util/u_atomic.h"
+
+/**
+ * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
+ * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
+ * We'll only return non-null for window system framebuffers.
+ * Note that this function may fail.
+ */
+static INLINE struct st_framebuffer *
+st_ws_framebuffer(struct gl_framebuffer *fb)
+{
+   /* FBO cannot be casted.  See st_new_framebuffer */
+   return (struct st_framebuffer *) ((fb && !fb->Name) ? fb : NULL);
+}
+
+static void st_viewport(struct gl_context * ctx, GLint x, GLint y,
+                        GLsizei width, GLsizei height)
+{
+   struct st_context *st = ctx->st;
+   struct st_framebuffer *stdraw;
+   struct st_framebuffer *stread;
+
+   if (!st->invalidate_on_gl_viewport)
+      return;
+
+   /*
+    * Normally we'd want the state tracker manager to mark the drawables
+    * invalid only when needed. This will force the state tracker manager
+    * to revalidate the drawable, rather than just update the context with
+    * the latest cached drawable info.
+    */
+
+   stdraw = st_ws_framebuffer(st->ctx->DrawBuffer);
+   stread = st_ws_framebuffer(st->ctx->ReadBuffer);
+
+   if (stdraw && stdraw->iface)
+      stdraw->iface_stamp = p_atomic_read(&stdraw->iface->stamp) - 1;
+   if (stread && stread != stdraw && stread->iface)
+      stread->iface_stamp = p_atomic_read(&stread->iface->stamp) - 1;
+}
+
+void st_init_viewport_functions(struct dd_function_table *functions)
+{
+   functions->Viewport = st_viewport;
+}
diff --git a/mesalib/src/mesa/state_tracker/st_context.h b/mesalib/src/mesa/state_tracker/st_context.h
index c98fd6aa7..0073ebe02 100644
--- a/mesalib/src/mesa/state_tracker/st_context.h
+++ b/mesalib/src/mesa/state_tracker/st_context.h
@@ -204,6 +204,9 @@ struct st_context
    /* Active render condition. */

    struct pipe_query *render_condition;

    unsigned condition_mode;

+

+   int32_t draw_stamp;

+   int32_t read_stamp;

 };

 

 

@@ -227,7 +230,8 @@ struct st_framebuffer
    struct st_framebuffer_iface *iface;

    enum st_attachment_type statts[ST_ATTACHMENT_COUNT];

    unsigned num_statts;

-   int32_t revalidate;

+   int32_t stamp;

+   int32_t iface_stamp;

 };

 

 

diff --git a/mesalib/src/mesa/state_tracker/st_format.h b/mesalib/src/mesa/state_tracker/st_format.h
index fe93ab26e..fcfb47201 100644
--- a/mesalib/src/mesa/state_tracker/st_format.h
+++ b/mesalib/src/mesa/state_tracker/st_format.h
@@ -54,7 +54,7 @@ extern enum pipe_format
 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,

                  GLenum format, GLenum type,

                  enum pipe_texture_target target, unsigned sample_count,

-                 unsigned tex_usage);

+                 unsigned bindings);

 

 extern enum pipe_format

 st_choose_renderbuffer_format(struct pipe_screen *screen,

diff --git a/mesalib/src/mesa/state_tracker/st_manager.c b/mesalib/src/mesa/state_tracker/st_manager.c
index c95514cbe..a8c4b5c3f 100644
--- a/mesalib/src/mesa/state_tracker/st_manager.c
+++ b/mesalib/src/mesa/state_tracker/st_manager.c
@@ -139,23 +139,64 @@ buffer_index_to_attachment(gl_buffer_index index)
 }
 
 /**
+ * Make sure a context picks up the latest cached state of the
+ * drawables it binds to.
+ */
+static void
+st_context_validate(struct st_context *st,
+                    struct st_framebuffer *stdraw,
+                    struct st_framebuffer *stread)
+{
+    if (stdraw && stdraw->stamp != st->draw_stamp) {
+       st->dirty.st |= ST_NEW_FRAMEBUFFER;
+       _mesa_resize_framebuffer(st->ctx, &stdraw->Base,
+                                stdraw->Base.Width,
+                                stdraw->Base.Height);
+       st->draw_stamp = stdraw->stamp;
+    }
+
+    if (stread && stread->stamp != st->read_stamp) {
+       if (stread != stdraw) {
+          st->dirty.st |= ST_NEW_FRAMEBUFFER;
+          _mesa_resize_framebuffer(st->ctx, &stread->Base,
+                                   stread->Base.Width,
+                                   stread->Base.Height);
+       }
+       st->read_stamp = stread->stamp;
+    }
+}
+
+/**
  * Validate a framebuffer to make sure up-to-date pipe_textures are used.
+ * The context we need to pass in is s dummy context needed only to be
+ * able to get a pipe context to create pipe surfaces, and to have a
+ * context to call _mesa_resize_framebuffer():
+ * (That should probably be rethought, since those surfaces become
+ * drawable state, not context state, and can be freed by another pipe
+ * context).
  */
 static void
-st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st)
+st_framebuffer_validate(struct st_framebuffer *stfb,
+                        struct st_context *st)
 {
-   struct pipe_context *pipe = st->pipe;
    struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
    uint width, height;
    unsigned i;
    boolean changed = FALSE;
+   int32_t new_stamp = p_atomic_read(&stfb->iface->stamp);
 
-   if (!p_atomic_read(&stfb->revalidate))
+   if (stfb->iface_stamp == new_stamp)
       return;
 
    /* validate the fb */
-   if (!stfb->iface->validate(stfb->iface, stfb->statts, stfb->num_statts, textures))
-      return;
+   do {
+      if (!stfb->iface->validate(stfb->iface, stfb->statts,
+				 stfb->num_statts, textures))
+	 return;
+
+      stfb->iface_stamp = new_stamp;
+      new_stamp = p_atomic_read(&stfb->iface->stamp);
+   } while(stfb->iface_stamp != new_stamp);
 
    width = stfb->Base.Width;
    height = stfb->Base.Height;
@@ -184,7 +225,7 @@ st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st)
       memset(&surf_tmpl, 0, sizeof(surf_tmpl));
       u_surface_default_template(&surf_tmpl, textures[i],
                                  PIPE_BIND_RENDER_TARGET);
-      ps = pipe->create_surface(pipe, textures[i], &surf_tmpl);
+      ps = st->pipe->create_surface(st->pipe, textures[i], &surf_tmpl);
       if (ps) {
          pipe_surface_reference(&strb->surface, ps);
          pipe_resource_reference(&strb->texture, ps->texture);
@@ -204,14 +245,9 @@ st_framebuffer_validate(struct st_framebuffer *stfb, struct st_context *st)
    }
 
    if (changed) {
-      st->dirty.st |= ST_NEW_FRAMEBUFFER;
+      ++stfb->stamp;
       _mesa_resize_framebuffer(st->ctx, &stfb->Base, width, height);
-
-      assert(stfb->Base.Width == width);
-      assert(stfb->Base.Height == height);
    }
-
-   p_atomic_set(&stfb->revalidate, FALSE);
 }
 
 /**
@@ -236,8 +272,7 @@ st_framebuffer_update_attachments(struct st_framebuffer *stfb)
           st_visual_have_buffers(stfb->iface->visual, 1 << statt))
          stfb->statts[stfb->num_statts++] = statt;
    }
-
-   p_atomic_set(&stfb->revalidate, TRUE);
+   stfb->stamp++;
 }
 
 /**
@@ -443,6 +478,7 @@ st_framebuffer_create(struct st_framebuffer_iface *stfbi)
          &stfb->Base._ColorReadBufferIndex);
 
    stfb->iface = stfbi;
+   stfb->iface_stamp = p_atomic_read(&stfbi->stamp) - 1;
 
    /* add the color buffer */
    idx = stfb->Base._ColorDrawBufferIndexes[0];
@@ -454,6 +490,7 @@ st_framebuffer_create(struct st_framebuffer_iface *stfbi)
    st_framebuffer_add_renderbuffer(stfb, BUFFER_DEPTH);
    st_framebuffer_add_renderbuffer(stfb, BUFFER_ACCUM);
 
+   stfb->stamp = 0;
    st_framebuffer_update_attachments(stfb);
 
    stfb->Base.Initialized = GL_TRUE;
@@ -473,31 +510,6 @@ st_framebuffer_reference(struct st_framebuffer **ptr,
 }
 
 static void
-st_context_notify_invalid_framebuffer(struct st_context_iface *stctxi,
-                                      struct st_framebuffer_iface *stfbi)
-{
-   struct st_context *st = (struct st_context *) stctxi;
-   struct st_framebuffer *stfb;
-
-   /* either draw or read winsys fb */
-   stfb = st_ws_framebuffer(st->ctx->WinSysDrawBuffer);
-   if (!stfb || stfb->iface != stfbi)
-      stfb = st_ws_framebuffer(st->ctx->WinSysReadBuffer);
-
-   if (stfb && stfb->iface == stfbi) {
-      p_atomic_set(&stfb->revalidate, TRUE);
-   }
-   else {
-      /* This function is probably getting called when we've detected a
-       * change in a window's size but the currently bound context is
-       * not bound to that window.
-       * If the st_framebuffer_iface structure had a pointer to the
-       * corresponding st_framebuffer we'd be able to handle this.
-       */
-   }
-}
-
-static void
 st_context_flush(struct st_context_iface *stctxi, unsigned flags,
                  struct pipe_fence_handle **fence)
 {
@@ -696,8 +708,6 @@ st_api_create_context(struct st_api *stapi, struct st_manager *smapi,
       smapi->get_param(smapi, ST_MANAGER_BROKEN_INVALIDATE);
 
    st->iface.destroy = st_context_destroy;
-   st->iface.notify_invalid_framebuffer =
-      st_context_notify_invalid_framebuffer;
    st->iface.flush = st_context_flush;
    st->iface.teximage = st_context_teximage;
    st->iface.copy = st_context_copy;
@@ -762,10 +772,6 @@ st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi,
       }
 
       if (stdraw && stread) {
-         if (stctxi != st_api_get_current(stapi)) {
-            p_atomic_set(&stdraw->revalidate, TRUE);
-            p_atomic_set(&stread->revalidate, TRUE);
-         }
          st_framebuffer_validate(stdraw, st);
          if (stread != stdraw)
             st_framebuffer_validate(stread, st);
@@ -781,6 +787,10 @@ st_api_make_current(struct st_api *stapi, struct st_context_iface *stctxi,
          }
 
          ret = _mesa_make_current(st->ctx, &stdraw->Base, &stread->Base);
+
+         st->draw_stamp = stdraw->stamp - 1;
+         st->read_stamp = stread->stamp - 1;
+         st_context_validate(st, stdraw, stread);
       }
       else {
          struct gl_framebuffer *incomplete = _mesa_get_incomplete_framebuffer();
@@ -872,6 +882,8 @@ st_manager_validate_framebuffers(struct st_context *st)
       st_framebuffer_validate(stdraw, st);
    if (stread && stread != stdraw)
       st_framebuffer_validate(stread, st);
+
+   st_context_validate(st, stdraw, stread);
 }
 
 /**