17 files changed, 691 insertions, 115 deletions

diff --git a/src/mesa/drivers/dri/Makefile.template b/src/mesa/drivers/dri/Makefile.template
index 6f2314ee8c..43c0e912bf 100644
--- a/src/mesa/drivers/dri/Makefile.template
+++ b/src/mesa/drivers/dri/Makefile.template
@@ -85,7 +85,7 @@ $(TOP)/$(LIB_DIR)/$(LIBNAME): $(LIBNAME)
 depend: $(C_SOURCES) $(ASM_SOURCES) $(SYMLINKS)
 	touch depend
 	$(MKDEP) $(MKDEP_OPTIONS) $(DRIVER_DEFINES) $(INCLUDES) $(C_SOURCES) \
-		$(ASM_SOURCES) 2>&1 /dev/null
+		$(ASM_SOURCES) 2> /dev/null
 
 
 # Emacs tags
diff --git a/src/mesa/drivers/dri/i915tex/i915_vtbl.c b/src/mesa/drivers/dri/i915tex/i915_vtbl.c
index ad333b490b..0e7ca9586e 100644
--- a/src/mesa/drivers/dri/i915tex/i915_vtbl.c
+++ b/src/mesa/drivers/dri/i915tex/i915_vtbl.c
@@ -464,6 +464,7 @@ i915_state_draw_region(struct intel_context *intel,
     * Set stride/cpp values
     */
    if (color_region) {
+//      fprintf(stderr, "color pitch %d\n", color_region->pitch);
       state->Buffer[I915_DESTREG_CBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
       state->Buffer[I915_DESTREG_CBUFADDR1] =
          (BUF_3D_ID_COLOR_BACK |
@@ -472,6 +473,7 @@ i915_state_draw_region(struct intel_context *intel,
    }
 
    if (depth_region) {
+//      fprintf(stderr, "depth pitch %d\n", depth_region->pitch);
       state->Buffer[I915_DESTREG_DBUFADDR0] = _3DSTATE_BUF_INFO_CMD;
       state->Buffer[I915_DESTREG_DBUFADDR1] =
          (BUF_3D_ID_DEPTH |
diff --git a/src/mesa/drivers/dri/i915tex/intel_blit.c b/src/mesa/drivers/dri/i915tex/intel_blit.c
index dbe4ba2ac5..c755eac6b2 100644
--- a/src/mesa/drivers/dri/i915tex/intel_blit.c
+++ b/src/mesa/drivers/dri/i915tex/intel_blit.c
@@ -79,15 +79,25 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
     */
    LOCK_HARDWARE(intel);
 
+      if (intel->revalidateDrawable) {
+	 __DRIscreenPrivate *sPriv = intel->driScreen;
+	 if (dPriv) {
+	    DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
+	 }
+      }
+
    if (dPriv && dPriv->numClipRects) {
       struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
       const struct intel_region *frontRegion
-	 = intel_get_rb_region(&intel_fb->Base, BUFFER_FRONT_LEFT);
+	 = intelScreen->front_region;
       const struct intel_region *backRegion
-	 = intel_get_rb_region(&intel_fb->Base, BUFFER_BACK_LEFT);
+	 = intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT ?
+	   intel_get_rb_region(&intel_fb->Base, BUFFER_FRONT_LEFT) :
+	   intel_get_rb_region(&intel_fb->Base, BUFFER_BACK_LEFT);
       const int nbox = dPriv->numClipRects;
       const drm_clip_rect_t *pbox = dPriv->pClipRects;
       const int pitch = frontRegion->pitch;
+      const int srcpitch = backRegion->pitch;
       const int cpp = frontRegion->cpp;
       int BR13, CMD;
       int i;
@@ -96,9 +106,12 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
       ASSERT(intel_fb->Base.Name == 0);    /* Not a user-created FBO */
       ASSERT(frontRegion);
       ASSERT(backRegion);
-      ASSERT(frontRegion->pitch == backRegion->pitch);
+//      ASSERT(frontRegion->pitch == backRegion->pitch);
       ASSERT(frontRegion->cpp == backRegion->cpp);
 
+      DBG("front pitch %d back pitch %d\n",
+	 frontRegion->pitch, backRegion->pitch);
+
       if (cpp == 2) {
 	 BR13 = (pitch * cpp) | (0xCC << 16) | (1 << 24);
 	 CMD = XY_SRC_COPY_BLT_CMD;
@@ -111,6 +124,7 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
 
       for (i = 0; i < nbox; i++, pbox++) {
 	 drm_clip_rect_t box;
+	 drm_clip_rect_t sbox;
 
 	 if (pbox->x1 > pbox->x2 ||
 	     pbox->y1 > pbox->y2 ||
@@ -133,6 +147,14 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
 	       continue;
 	 }
 
+	 DBG("box x1 x2 y1 y2 %d %d %d %d\n",
+	      box.x1, box.x2, box.y1, box.y2);
+
+	 /* XXX should make sure only the minimum area based on
+	    old draw buffer and new front clip rects is copied */
+	 sbox.x1 = box.x1 - dPriv->x;
+	 sbox.y1 = box.y1 - dPriv->y;
+
 	 BEGIN_BATCH(8, INTEL_BATCH_NO_CLIPRECTS);
 	 OUT_BATCH(CMD);
 	 OUT_BATCH(BR13);
@@ -141,8 +163,8 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
 
 	 OUT_RELOC(frontRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_WRITE,
 		   DRM_BO_MASK_MEM | DRM_BO_FLAG_WRITE, 0);
-	 OUT_BATCH((pbox->y1 << 16) | pbox->x1);
-	 OUT_BATCH(BR13 & 0xffff);
+	 OUT_BATCH((sbox.y1 << 16) | sbox.x1);
+	 OUT_BATCH((srcpitch * cpp) & 0xffff);
 	 OUT_RELOC(backRegion->buffer, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
 		   DRM_BO_MASK_MEM | DRM_BO_FLAG_READ, 0);
 
@@ -156,6 +178,12 @@ intelCopyBuffer(const __DRIdrawablePrivate * dPriv,
    }
 
    UNLOCK_HARDWARE(intel);
+
+   if (intel->revalidateDrawable) {
+      intel->revalidateDrawable = GL_FALSE;
+      intelWindowMoved(intel);
+   }
+
 }
 
 
@@ -409,9 +437,8 @@ intelClearWithBlit(GLcontext * ctx, GLbitfield mask)
             b = *box;
          }
 
-         if (0)
-            _mesa_printf("clear %d,%d..%d,%d, mask %x\n",
-                         b.x1, b.y1, b.x2, b.y2, mask);
+         DBG("clear %d,%d..%d,%d, mask %x\n",
+                      b.x1, b.y1, b.x2, b.y2, mask);
 
          /* Loop over all renderbuffers */
          for (buf = 0; buf < BUFFER_COUNT && clearMask; buf++) {
diff --git a/src/mesa/drivers/dri/i915tex/intel_buffers.c b/src/mesa/drivers/dri/i915tex/intel_buffers.c
index 15d02f8e2c..17b4feadf8 100644
--- a/src/mesa/drivers/dri/i915tex/intel_buffers.c
+++ b/src/mesa/drivers/dri/i915tex/intel_buffers.c
@@ -146,57 +146,30 @@ intelSetRenderbufferClipRects(struct intel_context *intel)
    intel->drawY = 0;
 }
 
-
 /**
- * As above, but for rendering to front buffer of a window.
- * \sa intelSetRenderbufferClipRects
+ * As above, but for rendering private front/back buffer of a window.
+ * \sa intelSetPrivbufClipRects
  */
-static void
-intelSetFrontClipRects(struct intel_context *intel)
-{
-   __DRIdrawablePrivate *dPriv = intel->driDrawable;
-
-   if (!dPriv)
-      return;
-
-   intel->numClipRects = dPriv->numClipRects;
-   intel->pClipRects = dPriv->pClipRects;
-   intel->drawX = dPriv->x;
-   intel->drawY = dPriv->y;
-}
 
-
-/**
- * As above, but for rendering to back buffer of a window.
- */
 static void
-intelSetBackClipRects(struct intel_context *intel)
+intelSetPrivbufClipRects(struct intel_context *intel)
 {
    __DRIdrawablePrivate *dPriv = intel->driDrawable;
-   struct intel_framebuffer *intel_fb;
-
    if (!dPriv)
       return;
 
-   intel_fb = dPriv->driverPrivate;
-
-   if (intel_fb->pf_active || dPriv->numBackClipRects == 0) {
-      /* use the front clip rects */
-      intel->numClipRects = dPriv->numClipRects;
-      intel->pClipRects = dPriv->pClipRects;
-      intel->drawX = dPriv->x;
-      intel->drawY = dPriv->y;
-   }
-   else {
-      /* use the back clip rects */
-      intel->numClipRects = dPriv->numBackClipRects;
-      intel->pClipRects = dPriv->pBackClipRects;
-      intel->drawX = dPriv->backX;
-      intel->drawY = dPriv->backY;
-   }
+   intel->fakeClipRect.x1 = 0;
+   intel->fakeClipRect.y1 = 0;
+   intel->fakeClipRect.x2 = dPriv->w;
+   intel->fakeClipRect.y2 = dPriv->h;
+   intel->numClipRects = 1;
+   intel->pClipRects = &intel->fakeClipRect;
+   intel->drawX = 0;
+   intel->drawY = 0;
 }
 
 
+
 /**
  * This will be called whenever the currently bound window is moved/resized.
  * XXX: actually, it seems to NOT be called when the window is only moved (BP).
@@ -210,27 +183,10 @@ intelWindowMoved(struct intel_context *intel)
 
    if (!intel->ctx.DrawBuffer) {
       /* when would this happen? -BP */
-      intelSetFrontClipRects(intel);
-   }
-   else if (intel->ctx.DrawBuffer->Name != 0) {
-      /* drawing to user-created FBO - do nothing */
-      /* Cliprects would be set from intelDrawBuffer() */
-   }
-   else {
-      /* drawing to a window */
-      switch (intel_fb->Base._ColorDrawBufferMask[0]) {
-      case BUFFER_BIT_FRONT_LEFT:
-         intelSetFrontClipRects(intel);
-         break;
-      case BUFFER_BIT_BACK_LEFT:
-         intelSetBackClipRects(intel);
-         break;
-      default:
-         /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */
-         intelSetFrontClipRects(intel);
-      }
+      intel->numClipRects = 0;
    }
 
+
    if (intel->intelScreen->driScrnPriv->ddxMinor >= 7) {
       drmI830Sarea *sarea = intel->sarea;
       drm_clip_rect_t drw_rect = { .x1 = dPriv->x, .x2 = dPriv->x + dPriv->w,
@@ -482,6 +438,7 @@ void
 intelRotateWindow(struct intel_context *intel,
                   __DRIdrawablePrivate * dPriv, GLuint srcBuf)
 {
+
    intelScreenPrivate *screen = intel->intelScreen;
    drm_clip_rect_t fullRect;
    struct intel_framebuffer *intel_fb;
@@ -913,7 +870,7 @@ intelSwapBuffers(__DRIdrawablePrivate * dPriv)
 	 GLboolean missed_target;
 	 struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
 	 int64_t ust;
-         
+
 	 _mesa_notifySwapBuffers(ctx);  /* flush pending rendering comands */
 
          if (screen->current_rotation != 0 ||
@@ -957,10 +914,17 @@ intelCopySubBuffer(__DRIdrawablePrivate * dPriv, int x, int y, int w, int h)
 
       if (ctx->Visual.doubleBufferMode) {
          drm_clip_rect_t rect;
+#if 1
          rect.x1 = x + dPriv->x;
          rect.y1 = (dPriv->h - y - h) + dPriv->y;
          rect.x2 = rect.x1 + w;
          rect.y2 = rect.y1 + h;
+#else
+         rect.x1 = x;
+         rect.y1 = dPriv->h - y;
+         rect.x2 = rect.x1 + w;
+         rect.y2 = rect.y1 + h;
+#endif
          _mesa_notifySwapBuffers(ctx);  /* flush pending rendering comands */
          intelCopyBuffer(dPriv, &rect);
       }
@@ -995,7 +959,7 @@ intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb)
       return;
    }
 
-   /* Do this here, note core Mesa, since this function is called from
+   /* Do this here, not core Mesa, since this function is called from
     * many places within the driver.
     */
    if (ctx->NewState & (_NEW_BUFFERS | _NEW_COLOR | _NEW_PIXEL)) {
@@ -1019,12 +983,7 @@ intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb)
    /*
     * How many color buffers are we drawing into?
     */
-   if (fb->_NumColorDrawBuffers[0] != 1
-#if 0
-       /* XXX FBO temporary - always use software rendering */
-       || 1
-#endif
-      ) {
+   if (fb->_NumColorDrawBuffers[0] != 1) {
       /* writing to 0 or 2 or 4 color buffers */
       /*_mesa_debug(ctx, "Software rendering\n");*/
       FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_TRUE);
@@ -1044,13 +1003,12 @@ intel_draw_buffer(GLcontext * ctx, struct gl_framebuffer *fb)
     * And set up cliprects.
     */
    if (fb->Name == 0) {
+      intelSetPrivbufClipRects(intel);
       /* drawing to window system buffer */
       if (front) {
-         intelSetFrontClipRects(intel);
          colorRegion = intel_get_rb_region(fb, BUFFER_FRONT_LEFT);
       }
       else {
-         intelSetBackClipRects(intel);
          colorRegion = intel_get_rb_region(fb, BUFFER_BACK_LEFT);
       }
    }
diff --git a/src/mesa/drivers/dri/i915tex/intel_context.c b/src/mesa/drivers/dri/i915tex/intel_context.c
index 40ea756412..61842da29d 100644
--- a/src/mesa/drivers/dri/i915tex/intel_context.c
+++ b/src/mesa/drivers/dri/i915tex/intel_context.c
@@ -60,6 +60,10 @@
 #include "intel_buffer_objects.h"
 #include "intel_fbo.h"
 
+#include "pipe/softpipe/sp_context.h"
+#include "state_tracker/st_public.h"
+
+
 #include "drirenderbuffer.h"
 #include "vblank.h"
 #include "utils.h"
@@ -256,6 +260,9 @@ intelInvalidateState(GLcontext * ctx, GLuint new_state)
    _vbo_InvalidateState(ctx, new_state);
    _tnl_InvalidateState(ctx, new_state);
    _tnl_invalidate_vertex_state(ctx, new_state);
+
+   st_invalidate_state( ctx, new_state );
+
    intel_context(ctx)->NewGLState |= new_state;
 }
 
@@ -282,18 +289,22 @@ intelFlush(GLcontext * ctx)
  * Check if we need to rotate/warp the front color buffer to the
  * rotated screen.  We generally need to do this when we get a glFlush
  * or glFinish after drawing to the front color buffer.
+ * If no rotation, just copy the private fake front buffer to the real one.
  */
 static void
-intelCheckFrontRotate(GLcontext * ctx)
+intelCheckFrontUpdate(GLcontext * ctx)
 {
    struct intel_context *intel = intel_context(ctx);
    if (intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] ==
        BUFFER_BIT_FRONT_LEFT) {
       intelScreenPrivate *screen = intel->intelScreen;
+      __DRIdrawablePrivate *dPriv = intel->driDrawable;
       if (screen->current_rotation != 0) {
-         __DRIdrawablePrivate *dPriv = intel->driDrawable;
          intelRotateWindow(intel, dPriv, BUFFER_BIT_FRONT_LEFT);
       }
+      else {
+         intelCopyBuffer(dPriv, NULL);
+      }
    }
 }
 
@@ -305,7 +316,7 @@ static void
 intelglFlush(GLcontext * ctx)
 {
    intelFlush(ctx);
-   intelCheckFrontRotate(ctx);
+   intelCheckFrontUpdate(ctx);
 }
 
 void
@@ -319,7 +330,7 @@ intelFinish(GLcontext * ctx)
       driFenceUnReference(intel->batch->last_fence);
       intel->batch->last_fence = NULL;
    }
-   intelCheckFrontRotate(ctx);
+   intelCheckFrontUpdate(ctx);
 }
 
 
@@ -505,6 +516,11 @@ intelInitContext(struct intel_context *intel,
       FALLBACK(intel, INTEL_FALLBACK_USER, 1);
    }
 
+
+   st_create_context( &intel->ctx,
+		      softpipe_create() );
+   
+
    return GL_TRUE;
 }
 
@@ -569,6 +585,13 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
                  __DRIdrawablePrivate * driReadPriv)
 {
 
+#if 0
+   if (driDrawPriv) {
+      fprintf(stderr, "x %d, y %d, width %d, height %d\n",
+	      driDrawPriv->x, driDrawPriv->y, driDrawPriv->w, driDrawPriv->h);
+   }
+#endif
+
    if (driContextPriv) {
       struct intel_context *intel =
          (struct intel_context *) driContextPriv->driverPrivate;
@@ -576,6 +599,9 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
 	 (struct intel_framebuffer *) driDrawPriv->driverPrivate;
       GLframebuffer *readFb = (GLframebuffer *) driReadPriv->driverPrivate;
 
+      /* this is a hack so we have a valid context when the region allocation
+         is done. Need a per-screen context? */
+      intel->intelScreen->dummyctxptr = intel;
 
       /* XXX FBO temporary fix-ups! */
       /* if the renderbuffers don't have regions, init them from the context */
@@ -613,6 +639,7 @@ intelMakeCurrent(__DRIcontextPrivate * driContextPriv,
       }
 
       _mesa_make_current(&intel->ctx, &intel_fb->Base, readFb);
+      intel->intelScreen->dummyctxptr = &intel->ctx;
 
       /* The drawbuffer won't always be updated by _mesa_make_current: 
        */
@@ -669,7 +696,8 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
     * checking must be done *after* this call:
     */
    if (dPriv)
-      DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
+      intel->revalidateDrawable = GL_TRUE;
+//      DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 
    if (sarea->width != intelScreen->width ||
        sarea->height != intelScreen->height ||
@@ -678,6 +706,7 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
       intelUpdateScreenRotation(sPriv, sarea);
    }
 
+#if 0
    if (sarea->width != intel->width ||
        sarea->height != intel->height ||
        sarea->rotation != intel->current_rotation) {
@@ -710,13 +739,7 @@ intelContendedLock(struct intel_context *intel, GLuint flags)
       intel->height = sarea->height;
       intel->current_rotation = sarea->rotation;
    }
-
-   /* Drawable changed?
-    */
-   if (dPriv && intel->lastStamp != dPriv->lastStamp) {
-      intelWindowMoved(intel);
-      intel->lastStamp = dPriv->lastStamp;
-   }
+#endif
 }
 
 
diff --git a/src/mesa/drivers/dri/i915tex/intel_context.h b/src/mesa/drivers/dri/i915tex/intel_context.h
index 9d060eb866..7b97c564a3 100644
--- a/src/mesa/drivers/dri/i915tex/intel_context.h
+++ b/src/mesa/drivers/dri/i915tex/intel_context.h
@@ -254,6 +254,7 @@ struct intel_context
    GLuint numClipRects;         /**< cliprects for drawing */
    drm_clip_rect_t *pClipRects;
    drm_clip_rect_t fboRect;     /**< cliprect for FBO rendering */
+   drm_clip_rect_t fakeClipRect;     /**< cliprect for priv back/fake front buffers rendering */
 
    int perf_boxes;
 
@@ -272,6 +273,7 @@ struct intel_context
    drmI830Sarea *sarea;
 
    GLuint lastStamp;
+   GLuint revalidateDrawable;
 
    /**
     * Configuration cache
@@ -353,7 +355,7 @@ __memcpy(void *to, const void *from, size_t n)
 /* ================================================================
  * Debugging:
  */
-#define DO_DEBUG		0
+#define DO_DEBUG		1
 #if DO_DEBUG
 extern int INTEL_DEBUG;
 #else
diff --git a/src/mesa/drivers/dri/i915tex/intel_fbo.c b/src/mesa/drivers/dri/i915tex/intel_fbo.c
index 6f99f401c7..a09db46163 100644
--- a/src/mesa/drivers/dri/i915tex/intel_fbo.c
+++ b/src/mesa/drivers/dri/i915tex/intel_fbo.c
@@ -176,7 +176,7 @@ intel_get_pointer(GLcontext * ctx, struct gl_renderbuffer *rb,
 
 /**
  * Called via glRenderbufferStorageEXT() to set the format and allocate
- * storage for a user-created renderbuffer.
+ * storage for a user-created (or priv buffer) renderbuffer.
  */
 static GLboolean
 intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
@@ -188,8 +188,6 @@ intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
    GLboolean softwareBuffer = GL_FALSE;
    int cpp;
 
-   ASSERT(rb->Name != 0);
-
    switch (internalFormat) {
    case GL_R3_G3_B2:
    case GL_RGB4:
@@ -257,7 +255,7 @@ intel_alloc_renderbuffer_storage(GLcontext * ctx, struct gl_renderbuffer *rb,
       break;
    default:
       _mesa_problem(ctx,
-                    "Unexpected format in intel_alloc_renderbuffer_storage");
+                    "Unexpected format (%x) in intel_alloc_renderbuffer_storage", internalFormat);
       return GL_FALSE;
    }
 
@@ -453,6 +451,29 @@ intel_create_renderbuffer(GLenum intFormat, GLsizei width, GLsizei height,
    return irb;
 }
 
+struct gl_renderbuffer *
+intel_new_renderbuffer_fb(GLcontext * ctx, GLuint intFormat)
+{
+   struct intel_renderbuffer *irb;
+
+   irb = CALLOC_STRUCT(intel_renderbuffer);
+   if (!irb) {
+      _mesa_error(ctx, GL_OUT_OF_MEMORY, "creating renderbuffer");
+      return NULL;
+   }
+
+   _mesa_init_renderbuffer(&irb->Base, 0);
+   irb->Base.ClassID = INTEL_RB_CLASS;
+   irb->Base.InternalFormat = intFormat;
+
+   /* intel-specific methods */
+   irb->Base.Delete = intel_delete_renderbuffer;
+   irb->Base.AllocStorage = intel_alloc_renderbuffer_storage;
+   irb->Base.GetPointer = intel_get_pointer;
+   /* span routines set in alloc_storage function */
+
+   return &irb->Base;
+}
 
 /**
  * Create a new renderbuffer object.
diff --git a/src/mesa/drivers/dri/i915tex/intel_screen.c b/src/mesa/drivers/dri/i915tex/intel_screen.c
index 2acdead63d..08057a6600 100644
--- a/src/mesa/drivers/dri/i915tex/intel_screen.c
+++ b/src/mesa/drivers/dri/i915tex/intel_screen.c
@@ -88,6 +88,7 @@ intelMapScreenRegions(__DRIscreenPrivate * sPriv)
       _mesa_warning(NULL, "no front buffer handle in intelMapScreenRegions!");
    }
 
+#if 0
    if (0)
       _mesa_printf("Back 0x%08x ", intelScreen->back.handle);
    if (drmMap(sPriv->fd,
@@ -119,6 +120,7 @@ intelMapScreenRegions(__DRIscreenPrivate * sPriv)
       intelUnmapScreenRegions(intelScreen);
       return GL_FALSE;
    }
+#endif
 
 #if 0
    _mesa_printf("TEX 0x%08x ", intelScreen->tex.handle);
@@ -156,7 +158,7 @@ intel_recreate_static(intelScreenPrivate *intelScreen,
   }
   return region;
 }
-    
+
 
 /* Create intel_region structs to describe the static front,back,depth
  * buffers created by the xserver. 
@@ -172,6 +174,7 @@ intel_recreate_static(intelScreenPrivate *intelScreen,
 static void
 intel_recreate_static_regions(intelScreenPrivate *intelScreen)
 {
+/* this is the real front buffer which is only used for blitting to */
    intelScreen->front_region =
       intel_recreate_static(intelScreen,
 			    intelScreen->front_region,
@@ -192,7 +195,7 @@ intel_recreate_static_regions(intelScreenPrivate *intelScreen)
 			    intelScreen->rotated.pitch /
 			    intelScreen->cpp, intelScreen->height);
 
-
+#if 0
    intelScreen->back_region =
       intel_recreate_static(intelScreen,
 			    intelScreen->back_region,
@@ -226,6 +229,7 @@ intel_recreate_static_regions(intelScreenPrivate *intelScreen)
 			    intelScreen->cpp,
 			    intelScreen->depth.pitch / intelScreen->cpp,
 			    intelScreen->height);
+#endif
 }
 
 /**
@@ -382,7 +386,7 @@ intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
    intelScreen->rotatedWidth = sarea->virtualX;
    intelScreen->rotatedHeight = sarea->virtualY;
 
-   if (0)
+   if (1)
       intelPrintSAREA(sarea);
 }
 
@@ -600,6 +604,7 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
 
       _mesa_initialize_framebuffer(&intel_fb->Base, mesaVis);
 
+#if 0
       /* setup the hardware-based renderbuffers */
       {
          intel_fb->color_rb[0]
@@ -640,7 +645,6 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
 	    _mesa_reference_renderbuffer(&tmp_rb, &intel_fb->color_rb[2]->Base);
 	 }
       }
-
       if (mesaVis->depthBits == 24 && mesaVis->stencilBits == 8) {
          /* combined depth/stencil buffer */
          struct intel_renderbuffer *depthStencilRb
@@ -670,6 +674,50 @@ intelCreateBuffer(__DRIscreenPrivate * driScrnPriv,
          _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base);
       }
 
+#else
+      {
+	 /* fake frontbuffer */
+	 /* XXX allocation should only happen in the unusual case
+            it's actually needed */
+         intel_fb->color_rb[0]
+            = intel_new_renderbuffer_fb(NULL, rgbFormat);
+         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT,
+				&intel_fb->color_rb[0]->Base);
+      }
+
+      if (mesaVis->doubleBufferMode) {
+         intel_fb->color_rb[1]
+            = intel_new_renderbuffer_fb(NULL, rgbFormat);
+         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT,
+				&intel_fb->color_rb[1]->Base);
+
+	 if (screen->third.handle) {
+	    struct gl_renderbuffer *tmp_rb = NULL;
+
+	    intel_fb->color_rb[2]
+	       = intel_new_renderbuffer_fb(NULL, rgbFormat);
+	    _mesa_reference_renderbuffer(&tmp_rb, &intel_fb->color_rb[2]->Base);
+	 }
+      }
+      if (mesaVis->depthBits == 24 && mesaVis->stencilBits == 8) {
+         /* combined depth/stencil buffer */
+         struct intel_renderbuffer *depthStencilRb
+            = intel_new_renderbuffer_fb(NULL, GL_DEPTH24_STENCIL8_EXT);
+         /* note: bind RB to two attachment points */
+         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
+				&depthStencilRb->Base);
+         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
+				&depthStencilRb->Base);
+      }
+      else if (mesaVis->depthBits == 16) {
+         /* just 16-bit depth buffer, no hw stencil */
+         struct intel_renderbuffer *depthRb
+            = intel_new_renderbuffer_fb(NULL, GL_DEPTH_COMPONENT16);
+         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base);
+      }
+
+#endif
+
       /* now add any/all software-based renderbuffers we may need */
       _mesa_add_soft_renderbuffers(&intel_fb->Base,
                                    GL_FALSE, /* never sw color */
@@ -939,11 +987,18 @@ struct intel_context *intelScreenContext(intelScreenPrivate *intelScreen)
    * context at screen creation. For now just use the current context.
    */
 
-  GET_CURRENT_CONTEXT(ctx);
+/*  GET_CURRENT_CONTEXT(ctx);
   if (ctx == NULL) {
      _mesa_problem(NULL, "No current context in intelScreenContext\n");
      return NULL;
   }
   return intel_context(ctx);
+*/
+  if (intelScreen->dummyctxptr == NULL) {
+     _mesa_problem(NULL, "No current context in intelScreenContext\n");
+     return NULL;
+  }
+  return intelScreen->dummyctxptr;
+
 }
 
diff --git a/src/mesa/drivers/dri/i915tex/intel_screen.h b/src/mesa/drivers/dri/i915tex/intel_screen.h
index bac43aaddd..783ee35524 100644
--- a/src/mesa/drivers/dri/i915tex/intel_screen.h
+++ b/src/mesa/drivers/dri/i915tex/intel_screen.h
@@ -96,6 +96,7 @@ typedef struct
    struct _DriBufferPool *staticPool;
    unsigned int maxBatchSize;
    GLboolean havePools;
+   struct intel_context *dummyctxptr;
 } intelScreenPrivate;
 
 
diff --git a/src/mesa/drivers/dri/i915tex/intel_state.c b/src/mesa/drivers/dri/i915tex/intel_state.c
index 271511037e..b2773990e4 100644
--- a/src/mesa/drivers/dri/i915tex/intel_state.c
+++ b/src/mesa/drivers/dri/i915tex/intel_state.c
@@ -205,25 +205,17 @@ intelCalcViewport(GLcontext * ctx)
    GLfloat *m = intel->ViewportMatrix.m;
    GLfloat yScale, yBias;
 
-   if (ctx->DrawBuffer->Name) {
-      /* User created FBO */
-      struct intel_renderbuffer *irb
+   struct intel_renderbuffer *irb
          = intel_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0][0]);
-      if (irb && !irb->RenderToTexture) {
-         /* y=0=top */
-         yScale = -1.0;
-         yBias = irb->Base.Height;
-      }
-      else {
-         /* y=0=bottom */
-         yScale = 1.0;
-         yBias = 0.0;
-      }
+   if (irb && !irb->RenderToTexture) {
+      /* y=0=top */
+      yScale = -1.0;
+      yBias = irb->Base.Height;
    }
    else {
-      /* window buffer, y=0=top */
-      yScale = -1.0;
-      yBias = (intel->driDrawable) ? intel->driDrawable->h : 0.0F;
+      /* y=0=bottom */
+      yScale = 1.0;
+      yBias = 0.0;
    }
 
    m[MAT_SX] = v[MAT_SX];
diff --git a/src/mesa/drivers/x11/Makefile b/src/mesa/drivers/x11/Makefile
new file mode 100644
index 0000000000..0ab1dc6e6b
--- /dev/null
+++ b/src/mesa/drivers/x11/Makefile
@@ -0,0 +1,2 @@
+default:
+	cd ../.. ; make
\ No newline at end of file
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index eaa277db4a..f20e8104fb 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -81,6 +81,9 @@
 #include "tnl/t_pipeline.h"
 #include "drivers/common/driverfuncs.h"
 
+#include "state_tracker/st_public.h"
+#include "pipe/softpipe/sp_context.h"
+
 /**
  * Global X driver lock
  */
@@ -1566,6 +1569,10 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
    xmesa_register_swrast_functions( mesaCtx );
    _swsetup_Wakeup(mesaCtx);
 
+
+   st_create_context( mesaCtx,
+		      softpipe_create() );
+   
    return c;
 }
 
diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c
index c8546236fb..5725414856 100644
--- a/src/mesa/drivers/x11/xm_dd.c
+++ b/src/mesa/drivers/x11/xm_dd.c
@@ -53,6 +53,10 @@
 #include "tnl/tnl.h"
 #include "tnl/t_context.h"
 
+#include "pipe/softpipe/sp_context.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_draw.h"
 
 
 /*
@@ -391,6 +395,7 @@ clear_buffers(GLcontext *ctx, GLbitfield buffers)
 
       /* we can't handle color or index masking */
       if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
+#if 0
          if (buffers & BUFFER_BIT_FRONT_LEFT) {
             /* clear front color buffer */
             struct gl_renderbuffer *frontRb
@@ -414,6 +419,15 @@ clear_buffers(GLcontext *ctx, GLbitfield buffers)
                buffers &= ~BUFFER_BIT_BACK_LEFT;
             }
          }
+#else
+         /* Clear with state-tracker/pipe interface */
+         struct st_context *st = st_context(ctx);
+         GLboolean color = (buffers & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) ? 1: 0;
+         GLboolean depth = (buffers & BUFFER_BIT_DEPTH) ? 1 : 0;
+         GLboolean stencil = (buffers & BUFFER_BIT_STENCIL) ? 1 : 0;
+         GLboolean accum = (buffers & BUFFER_BIT_ACCUM) ? 1 : 0;
+         st_clear(st, color, depth, stencil, accum);
+#endif
       }
    }
    if (buffers)
@@ -828,6 +842,9 @@ xmesa_update_state( GLcontext *ctx, GLbitfield new_state )
    _vbo_InvalidateState( ctx, new_state );
    _swsetup_InvalidateState( ctx, new_state );
 
+   st_invalidate_state( ctx, new_state );
+
+
    if (ctx->DrawBuffer->Name != 0)
       return;
 
diff --git a/src/mesa/drivers/x11/xm_span.c b/src/mesa/drivers/x11/xm_span.c
index a24966b3ae..3776891e2e 100644
--- a/src/mesa/drivers/x11/xm_span.c
+++ b/src/mesa/drivers/x11/xm_span.c
@@ -1303,6 +1303,17 @@ static void put_row_rgb_TRUEDITHER_ximage( RGB_SPAN_ARGS )
 }
 
 
+
+static void *get_pointer_4_ximage( GLcontext *ctx, 
+				   struct gl_renderbuffer *rb, 
+				   GLint x, GLint y )
+{
+   GET_XRB(xrb);
+   return PIXEL_ADDR4(xrb, x, y);
+}
+
+
+
 /*
  * Write a span of PF_8A8B8G8R-format pixels to an ximage.
  */
@@ -4593,6 +4604,7 @@ xmesa_set_renderbuffer_funcs(struct xmesa_renderbuffer *xrb,
          xrb->Base.PutMonoRow    = put_mono_row_8A8B8G8R_ximage;
          xrb->Base.PutValues     = put_values_8A8B8G8R_ximage;
          xrb->Base.PutMonoValues = put_mono_values_8A8B8G8R_ximage;
+	 xrb->Base.GetPointer    = get_pointer_4_ximage;
       }
       break;
    case PF_8A8R8G8B:
@@ -4609,6 +4621,7 @@ xmesa_set_renderbuffer_funcs(struct xmesa_renderbuffer *xrb,
          xrb->Base.PutMonoRow    = put_mono_row_8A8R8G8B_ximage;
          xrb->Base.PutValues     = put_values_8A8R8G8B_ximage;
          xrb->Base.PutMonoValues = put_mono_values_8A8R8G8B_ximage;
+	 xrb->Base.GetPointer    = get_pointer_4_ximage;
       }
       break;
    case PF_8R8G8B:
diff --git a/src/mesa/drivers/x11/xm_surface.c b/src/mesa/drivers/x11/xm_surface.c
new file mode 100644
index 0000000000..58081a36a0
--- /dev/null
+++ b/src/mesa/drivers/x11/xm_surface.c
@@ -0,0 +1,395 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2007  Brian Paul   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.
+ */
+
+
+/**
+ * \file xm_surface.h
+ * Code to allow the softpipe code to write to X windows/buffers.
+ * This is a bit of a hack for now.  We've basically got two different
+ * abstractions for color buffers: gl_renderbuffer and softpipe_surface.
+ * They'll need to get merged someday...
+ * For now, they're separate things that point to each other.
+ */
+
+
+#include "glxheader.h"
+#include "GL/xmesa.h"
+#include "xmesaP.h"
+#include "context.h"
+#include "imports.h"
+#include "macros.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include "pipe/softpipe/sp_context.h"
+#include "pipe/softpipe/sp_surface.h"
+
+
+/**
+ * An xm_surface is derived from a softpipe_surface
+ */
+struct xmesa_surface
+{
+   struct softpipe_surface sps;
+   struct xmesa_renderbuffer *xrb;  /** ptr back to matching xmesa_renderbuffer */
+   struct gl_renderbuffer *rb; /* ptr to matching gl_renderbuffer */
+};
+
+
+/**
+ * Cast wrapper
+ */
+static INLINE struct xmesa_surface *
+xmesa_surface(struct softpipe_surface *sps)
+{
+   return (struct xmesa_surface *) sps;
+}
+
+
+/**
+ * quad reading/writing
+ * These functions are just wrappers around the existing renderbuffer
+ * functions.
+ */
+
+static void
+read_quad_f(struct softpipe_surface *gs, GLint x, GLint y,
+            GLfloat (*rgba)[NUM_CHANNELS])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GLubyte temp[16];
+   GLfloat *dst = (GLfloat *) rgba;
+   GLuint i;
+   GET_CURRENT_CONTEXT(ctx);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y,     temp);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y + 1, temp + 8);
+   for (i = 0; i < 16; i++) {
+      dst[i] = UBYTE_TO_FLOAT(temp[i]);
+   }
+}
+
+static void
+read_quad_f_swz(struct softpipe_surface *gs, GLint x, GLint y,
+                GLfloat (*rrrr)[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GLubyte temp[16];
+   GLfloat *dst = (GLfloat *) rrrr;
+   GLuint i, j;
+   GET_CURRENT_CONTEXT(ctx);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y,     temp);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y + 1, temp + 8);
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+         dst[j * 4 + i] = UBYTE_TO_FLOAT(temp[i * 4 + j]);
+      }
+   }
+}
+
+static void
+write_quad_f(struct softpipe_surface *gs, GLint x, GLint y,
+             GLfloat (*rgba)[NUM_CHANNELS])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GLubyte temp[16];
+   const GLfloat *src = (const GLfloat *) rgba;
+   GLuint i;
+   GET_CURRENT_CONTEXT(ctx);
+   for (i = 0; i < 16; i++) {
+      UNCLAMPED_FLOAT_TO_UBYTE(temp[i], src[i]);
+   }
+   xrb->Base.PutRow(ctx, &xrb->Base, 2, x, y,     temp,     NULL);
+   xrb->Base.PutRow(ctx, &xrb->Base, 2, x, y + 1, temp + 8, NULL);
+}
+
+static void
+write_quad_f_swz(struct softpipe_surface *gs, GLint x, GLint y,
+                 GLfloat (*rrrr)[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GLubyte temp[16];
+   const GLfloat *src = (const GLfloat *) rrrr;
+   GLuint i, j;
+   GET_CURRENT_CONTEXT(ctx);
+   for (i = 0; i < 4; i++) {
+      for (j = 0; j < 4; j++) {
+         UNCLAMPED_FLOAT_TO_UBYTE(temp[j * 4 + i], src[i * 4 + j]);
+      }
+   }
+   xrb->Base.PutRow(ctx, &xrb->Base, 2, x, y,     temp,     NULL);
+   xrb->Base.PutRow(ctx, &xrb->Base, 2, x, y + 1, temp + 8, NULL);
+}
+
+static void
+read_quad_ub(struct softpipe_surface *gs, GLint x, GLint y,
+             GLubyte (*rgba)[NUM_CHANNELS])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GET_CURRENT_CONTEXT(ctx);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y,     rgba);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y + 1, rgba + 2);
+}
+
+static void
+write_quad_ub(struct softpipe_surface *gs, GLint x, GLint y,
+              GLubyte (*rgba)[NUM_CHANNELS])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GET_CURRENT_CONTEXT(ctx);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y,     rgba);
+   xrb->Base.GetRow(ctx, &xrb->Base, 2, x, y + 1, rgba + 2);
+}
+
+static void
+write_mono_row_ub(struct softpipe_surface *gs, GLuint count, GLint x, GLint y,
+                  GLubyte rgba[NUM_CHANNELS])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(gs);
+   struct xmesa_renderbuffer *xrb = xmsurf->xrb;
+   GET_CURRENT_CONTEXT(ctx);
+   xrb->Base.PutMonoRow(ctx, &xrb->Base, count, x, y, rgba, NULL);
+}
+
+
+static struct xmesa_surface *
+create_surface(XMesaContext xmctx, struct xmesa_renderbuffer *xrb)
+{
+   struct xmesa_surface *xmsurf;
+
+   xmsurf = CALLOC_STRUCT(xmesa_surface);
+   if (xmsurf) {
+      xmsurf->xrb = xrb;
+      xmsurf->sps.surface.width = xrb->Base.Width;
+      xmsurf->sps.surface.height = xrb->Base.Height;
+
+      xmsurf->sps.read_quad_f = read_quad_f;
+      xmsurf->sps.read_quad_f_swz = read_quad_f_swz;
+      xmsurf->sps.read_quad_ub = read_quad_ub;
+      xmsurf->sps.write_quad_f = write_quad_f;
+      xmsurf->sps.write_quad_f_swz = write_quad_f_swz;
+      xmsurf->sps.write_quad_ub = write_quad_ub;
+      xmsurf->sps.write_mono_row_ub = write_mono_row_ub;
+
+#if 0
+      if (xrb->ximage) {
+         xmsurf->sps.surface.ptr = (GLubyte *) xrb->ximage->data;
+         xmsurf->sps.surface.stride = xrb->ximage->bytes_per_line;
+         xmsurf->sps.surface.cpp = xrb->ximage->depth;
+
+      }
+#endif
+   }
+   return xmsurf;
+}
+
+
+static void
+free_surface(struct softpipe_surface *sps)
+{
+   /* XXX may need to do more in the future */
+   free(sps);
+}
+
+
+/**
+ * Return generic surface pointer corresponding to the current color buffer.
+ */
+struct pipe_surface *
+xmesa_get_color_surface(GLcontext *ctx, GLuint buf)
+{
+   XMesaContext xmctx = XMESA_CONTEXT(ctx);
+   struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0][buf];   
+   struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);
+   struct softpipe_surface *sps = (struct softpipe_surface *) xrb->pSurface;
+
+   if (!sps) {
+      xrb->pSurface = create_surface(xmctx, xrb);
+   }
+   else if (sps->surface.width != rb->Width ||
+            sps->surface.height != rb->Height) {
+      free_surface(sps);
+      xrb->pSurface = create_surface(xmctx, xrb);
+   }
+
+   return (struct pipe_surface *) xrb->pSurface;
+}
+
+
+
+
+static void
+read_quad_z(struct softpipe_surface *sps,
+            GLint x, GLint y, GLuint zzzz[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(sps);
+   struct gl_renderbuffer *rb = xmsurf->rb;
+   GLushort temp[4];
+   GLuint i;
+   GET_CURRENT_CONTEXT(ctx);
+   rb->GetRow(ctx, rb, 2, x, y,     temp);
+   rb->GetRow(ctx, rb, 2, x, y + 1, temp + 2);
+   /* convert from GLushort to GLuint */
+   for (i = 0; i < 4; i++) {
+      zzzz[i] = temp[i];
+   }
+}
+
+static void
+write_quad_z(struct softpipe_surface *sps,
+             GLint x, GLint y, const GLuint zzzz[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(sps);
+   struct gl_renderbuffer *rb = xmsurf->rb;
+   GLushort temp[4];
+   GLuint i;
+   GET_CURRENT_CONTEXT(ctx);
+   /* convert from GLuint to GLushort */
+   for (i = 0; i < 4; i++) {
+      temp[i] = zzzz[i];
+   }
+   rb->PutRow(ctx, rb, 2, x, y,     temp,     NULL);
+   rb->PutRow(ctx, rb, 2, x, y + 1, temp + 2, NULL);
+}
+
+
+static struct xmesa_surface *
+create_z_surface(XMesaContext xmctx, struct gl_renderbuffer *rb)
+{
+   struct xmesa_surface *xmsurf;
+
+   xmsurf = CALLOC_STRUCT(xmesa_surface);
+   if (xmsurf) {
+      xmsurf->sps.surface.format = PIPE_FORMAT_U_Z16;
+      xmsurf->sps.surface.width = rb->Width;
+      xmsurf->sps.surface.height = rb->Height;
+      xmsurf->sps.read_quad_z = read_quad_z;
+      xmsurf->sps.write_quad_z = write_quad_z;
+      xmsurf->rb = rb;
+   }
+   return xmsurf;
+}
+
+
+
+
+static void
+read_quad_stencil(struct softpipe_surface *sps,
+                  GLint x, GLint y, GLubyte ssss[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(sps);
+   struct gl_renderbuffer *rb = xmsurf->rb;
+   GET_CURRENT_CONTEXT(ctx);
+   rb->GetRow(ctx, rb, 2, x, y,     ssss);
+   rb->GetRow(ctx, rb, 2, x, y + 1, ssss + 2);
+}
+
+static void
+write_quad_stencil(struct softpipe_surface *sps,
+                   GLint x, GLint y, const GLubyte ssss[QUAD_SIZE])
+{
+   struct xmesa_surface *xmsurf = xmesa_surface(sps);
+   struct gl_renderbuffer *rb = xmsurf->rb;
+   GET_CURRENT_CONTEXT(ctx);
+   rb->PutRow(ctx, rb, 2, x, y,     ssss,     NULL);
+   rb->PutRow(ctx, rb, 2, x, y + 1, ssss + 2, NULL);
+}
+
+static struct xmesa_surface *
+create_stencil_surface(XMesaContext xmctx, struct gl_renderbuffer *rb)
+{
+   struct xmesa_surface *xmsurf;
+
+   xmsurf = CALLOC_STRUCT(xmesa_surface);
+   if (xmsurf) {
+      xmsurf->sps.surface.format = PIPE_FORMAT_U_S8;
+      xmsurf->sps.surface.width = rb->Width;
+      xmsurf->sps.surface.height = rb->Height;
+      xmsurf->sps.read_quad_stencil = read_quad_stencil;
+      xmsurf->sps.write_quad_stencil = write_quad_stencil;
+      xmsurf->rb = rb;
+   }
+   return xmsurf;
+}
+
+
+
+
+/**
+ * Return a pipe_surface that wraps the current Z/depth buffer.
+ * XXX this is pretty much a total hack until gl_renderbuffers and
+ * pipe_surfaces are merged...
+ */
+struct pipe_surface *
+xmesa_get_z_surface(GLcontext *ctx)
+{
+   XMesaContext xmctx = XMESA_CONTEXT(ctx);
+   struct gl_renderbuffer *rb = ctx->DrawBuffer->_DepthBuffer;
+   static struct xmesa_surface *xms = NULL;
+
+   if (!rb)
+      return NULL;
+
+   if (!xms) {
+      xms = create_z_surface(xmctx, rb);
+   }
+   else if (xms->sps.surface.width != rb->Width ||
+            xms->sps.surface.height != rb->Height) {
+      free_surface(&xms->sps);
+      xms = create_z_surface(xmctx, rb);
+   }
+
+   return (struct pipe_surface *) &xms->sps.surface;
+}
+
+
+struct pipe_surface *
+xmesa_get_stencil_surface(GLcontext *ctx)
+{
+   XMesaContext xmctx = XMESA_CONTEXT(ctx);
+   struct gl_renderbuffer *rb = ctx->DrawBuffer->_StencilBuffer;
+   static struct xmesa_surface *xms = NULL;
+
+   if (!rb)
+      return NULL;
+
+   if (!xms) {
+      xms = create_stencil_surface(xmctx, rb);
+   }
+   else if (xms->sps.surface.width != rb->Width ||
+            xms->sps.surface.height != rb->Height) {
+      free_surface(&xms->sps);
+      xms = create_stencil_surface(xmctx, rb);
+   }
+
+   return (struct pipe_surface *) &xms->sps.surface;
+}
+
diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c
index 95c6d7c1d2..9f17083f90 100644
--- a/src/mesa/drivers/x11/xm_tri.c
+++ b/src/mesa/drivers/x11/xm_tri.c
@@ -1443,6 +1443,46 @@ do {                                   \
 #endif
 
 
+#if 0
+GLboolean xmesa_get_cbuf_details( GLcontext *ctx,
+				  void **ptr,
+				  GLuint *cpp,
+				  GLint *stride,
+				  GLuint *format )
+{
+   XMesaContext xmesa = XMESA_CONTEXT(ctx);
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
+   struct gl_renderbuffer *crb = fb->_ColorDrawBuffers[0][0];
+   struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(crb->Wrapped);
+
+   *ptr = crb->GetPointer(ctx, crb, 0, 0);
+   *stride = ((GLubyte *)crb->GetPointer(ctx, crb, 0, 1) - 
+	      (GLubyte *)crb->GetPointer(ctx, crb, 0, 0));
+
+   if (!ptr) 
+      goto bad;
+
+   switch (xmesa->pixelformat) {
+   case PF_8A8B8G8R:
+   case PF_8A8R8G8B:
+      *format = 1;		/* whatever */
+      *cpp = 4;
+      break;
+   default:
+      goto bad;
+   }
+
+   return GL_TRUE;
+
+ bad:
+   *ptr = NULL;
+   *stride = 0;
+   *format = 0;
+   return GL_FALSE;   
+}
+#endif
+
+
 /**
  * Return pointer to line drawing function, or NULL if we should use a
  * swrast fallback.
diff --git a/src/mesa/drivers/x11/xmesaP.h b/src/mesa/drivers/x11/xmesaP.h
index e3d7cf381f..8648b19939 100644
--- a/src/mesa/drivers/x11/xmesaP.h
+++ b/src/mesa/drivers/x11/xmesaP.h
@@ -196,6 +196,8 @@ struct xmesa_renderbuffer
    GLint bottom;	/* used for FLIP macro, equals height - 1 */
 
    ClearFunc clearFunc;
+
+   void *pSurface;      /** pipe surface */
 };
 
 
@@ -583,4 +585,23 @@ extern void xmesa_register_swrast_functions( GLcontext *ctx );
 #define ENABLE_EXT_timer_query 0 /* may not have 64-bit GLuint64EXT */
 #endif
 
+#if 0
+GLboolean xmesa_get_cbuf_details( GLcontext *ctx,
+				  void **ptr,
+				  GLuint *cpp,
+				  GLint *stride,
+				  GLuint *format );
+#endif
+
+struct pipe_surface;
+struct pipe_surface *
+xmesa_get_color_surface(GLcontext *ctx, GLuint buf);
+
+struct pipe_surface *
+xmesa_get_z_surface(GLcontext *ctx);
+
+struct pipe_surface *
+xmesa_get_stencil_surface(GLcontext *ctx);
+
+
 #endif