diff --git a/ghostscript-gdevcups-y-axis.patch b/ghostscript-gdevcups-y-axis.patch
new file mode 100644
index 0000000..6e92ca1
--- /dev/null
+++ b/ghostscript-gdevcups-y-axis.patch
@@ -0,0 +1,698 @@
+diff -up ghostscript-8.70/cups/gdevcups.c.gdevcups-y-axis ghostscript-8.70/cups/gdevcups.c
+--- ghostscript-8.70/cups/gdevcups.c.gdevcups-y-axis	2010-01-21 11:17:55.974149011 +0000
++++ ghostscript-8.70/cups/gdevcups.c	2010-01-21 11:18:54.823149257 +0000
+@@ -605,8 +605,6 @@ private void
+ cups_get_matrix(gx_device *pdev,	/* I - Device info */
+                 gs_matrix *pmat)	/* O - Physical transform matrix */
+ {
+-  ppd_attr_t *backside = NULL;
+-
+   dprintf2("DEBUG2: cups_get_matrix(%p, %p)\n", pdev, pmat);
+ 
+  /*
+@@ -620,119 +618,25 @@ cups_get_matrix(gx_device *pdev,	/* I - 
+   * Set the transform matrix...
+   */
+ 
+-  dprintf1("DEBUG2: cups->header.Duplex = %d\n", cups->header.Duplex);
+-  dprintf1("DEBUG2: cups->page = %d\n", cups->page);
+-
+-  if (cupsPPD)
+-  {
+-    backside = ppdFindAttr(cupsPPD, "cupsBackSide", NULL); 
+-    dprintf1("DEBUG2: cupsPPD = %p\n", cupsPPD);
+-    if (backside) {
+-       dprintf1("DEBUG2: cupsBackSide = %s\n", backside->value);
+-       cupsPPD->flip_duplex = 0;
+-    }
+-    dprintf1("DEBUG2: cupsPPD->flip_duplex = %d\n", cupsPPD->flip_duplex);
+-  }
+-
+   if (cups->landscape)
+   {
+    /*
+     * Do landscape orientation...
+     */
+-
+-    if (cups->header.Duplex && cupsPPD &&
+-	(cups->header.Tumble &&
+-	 (backside && !strcasecmp(backside->value, "Flipped"))) &&
+-	!(cups->page & 1))
+-    {
+-      pmat->xx = 0.0;
+-      pmat->xy = (float)cups->header.HWResolution[1] / 72.0;
+-      pmat->yx = (float)cups->header.HWResolution[0] / 72.0;
+-      pmat->yy = 0.0;
+-      pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[1] / 72.0;
+-      pmat->ty = -(float)cups->header.HWResolution[1] * pdev->HWMargins[0] / 72.0;
+-    }
+-    else if (cups->header.Duplex && cupsPPD &&
+-	     (!cups->header.Tumble &&
+-	      (backside && !strcasecmp(backside->value, "Flipped"))) &&
+-	     !(cups->page & 1))
+-    {
+-      pmat->xx = 0.0;
+-      pmat->xy = -(float)cups->header.HWResolution[1] / 72.0;
+-      pmat->yx = (float)cups->header.HWResolution[0] / 72.0;
+-      pmat->yy = 0.0;
+-      pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[1] / 72.0;
+-      pmat->ty = (float)cups->header.HWResolution[1] *
+-	         ((float)cups->header.PageSize[0] - pdev->HWMargins[2]) / 72.0;
+-    }
+-    else if (cups->header.Duplex && cupsPPD &&
+-	     ((!cups->header.Tumble &&
+-	       (cupsPPD->flip_duplex ||
+-		(backside && !strcasecmp(backside->value, "Rotated")))) ||
+-	      (cups->header.Tumble &&
+-	       (backside && !strcasecmp(backside->value, "ManualTumble")))) &&
+-	   !(cups->page & 1))
+-    {
+-      pmat->xx = 0.0;
+-      pmat->xy = -(float)cups->header.HWResolution[1] / 72.0;
+-      pmat->yx = (float)cups->header.HWResolution[0] / 72.0;
+-      pmat->yy = 0.0;
+-      pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[1] / 72.0;
+-      pmat->ty = (float)cups->header.HWResolution[1] *
+-	         ((float)cups->header.PageSize[0] - pdev->HWMargins[2]) / 72.0;
+-    }
+-    else
+-    {
+-      pmat->xx = 0.0;
+-      pmat->xy = (float)cups->header.HWResolution[1] / 72.0;
+-      pmat->yx = (float)cups->header.HWResolution[0] / 72.0;
+-      pmat->yy = 0.0;
+-      pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[1] / 72.0;
+-      pmat->ty = -(float)cups->header.HWResolution[1] * pdev->HWMargins[0] / 72.0;
+-    }
+-  }
+-  else if (cups->header.Duplex && cupsPPD &&
+-	   (cups->header.Tumble &&
+-	    (backside && !strcasecmp(backside->value, "Flipped"))) &&
+-	   !(cups->page & 1))
+-  {
+-    pmat->xx = (float)cups->header.HWResolution[0] / 72.0;
+-    pmat->xy = 0.0;
+-    pmat->yx = 0.0;
+-    pmat->yy = -(float)cups->header.HWResolution[1] / 72.0;
+-    pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[0] / 72.0;
+-    pmat->ty = (float)cups->header.HWResolution[1] *
+-               ((float)cups->header.PageSize[1] - pdev->HWMargins[3]) / 72.0;
+-  }
+-  else if (cups->header.Duplex && cupsPPD &&
+-	   (!cups->header.Tumble &&
+-	    (backside && !strcasecmp(backside->value, "Flipped"))) &&
+-	   !(cups->page & 1))
+-  {
+-    pmat->xx = (float)cups->header.HWResolution[0] / 72.0;
+-    pmat->xy = 0.0;
+-    pmat->yx = 0.0;
+-    pmat->yy = (float)cups->header.HWResolution[1] / 72.0;
+-    pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[0] / 72.0;
+-    pmat->ty = -(float)cups->header.HWResolution[1] * pdev->HWMargins[1] / 72.0;
+-  }
+-  else if (cups->header.Duplex && cupsPPD &&
+-	   ((!cups->header.Tumble &&
+-	     (cupsPPD->flip_duplex ||
+-	     (backside && !strcasecmp(backside->value, "Rotated")))) ||
+-	    (cups->header.Tumble &&
+-	     (backside && !strcasecmp(backside->value, "ManualTumble")))) &&
+-	   !(cups->page & 1))
+-  {
+-    pmat->xx = (float)cups->header.HWResolution[0] / 72.0;
+-    pmat->xy = 0.0;
+-    pmat->yx = 0.0;
+-    pmat->yy = (float)cups->header.HWResolution[1] / 72.0;
+-    pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[0] / 72.0;
+-    pmat->ty = -(float)cups->header.HWResolution[1] * pdev->HWMargins[1] / 72.0;
++    dprintf("DEBUG2: Landscape matrix: XX=0 XY=+1 YX=+1 YY=0\n");
++    pmat->xx = 0.0;
++    pmat->xy = (float)cups->header.HWResolution[1] / 72.0;
++    pmat->yx = (float)cups->header.HWResolution[0] / 72.0;
++    pmat->yy = 0.0;
++    pmat->tx = -(float)cups->header.HWResolution[0] * pdev->HWMargins[1] / 72.0;
++    pmat->ty = -(float)cups->header.HWResolution[1] * pdev->HWMargins[0] / 72.0;
+   }
+   else
+   {
++   /*
++    * Do portrait orientation...
++    */
++    dprintf("DEBUG2: Portrait matrix: XX=+1 XY=0 YX=0 YY=-1\n");
+     pmat->xx = (float)cups->header.HWResolution[0] / 72.0;
+     pmat->xy = 0.0;
+     pmat->yx = 0.0;
+@@ -2799,6 +2703,7 @@ cups_put_params(gx_device     *pdev,	/* 
+   int                   xflip = 0,
+                         yflip = 0;
+   int                   found = 0;
++  static int            lastpage = 0;
+ 
+   dprintf2("DEBUG2: cups_put_params(%p, %p)\n", pdev, plist);
+ 
+@@ -2895,6 +2800,15 @@ cups_put_params(gx_device     *pdev,	/* 
+   size_set    = param_read_float_array(plist, ".MediaSize", &arrayval) == 0 ||
+                 param_read_float_array(plist, "PageSize", &arrayval) == 0;
+   margins_set = param_read_float_array(plist, "Margins", &arrayval) == 0;
++  /* We also recompute page size and margins if we simply get onto a new
++     page without necessarily having a page size change in the PostScript
++     code, as for some printers margins have to flipped on the back sides of
++     the sheets (even pages) when printing duplex */
++  if (cups->page != lastpage) {
++    size_set = 1;
++    margins_set = 1;
++    lastpage = cups->page;
++  }
+   color_set   = param_read_int(plist, "cupsColorSpace", &intval) == 0 ||
+                 param_read_int(plist, "cupsBitsPerColor", &intval) == 0;
+ 
+@@ -2995,7 +2909,7 @@ cups_put_params(gx_device     *pdev,	/* 
+   * Update margins/sizes as needed...
+   */
+ 
+-  if (size_set)
++  if (size_set || margins_set)
+   {
+    /*
+     * Compute the page margins...
+@@ -3011,6 +2925,7 @@ cups_put_params(gx_device     *pdev,	/* 
+     if (cupsPPD != NULL)
+     {
+       dprintf1("DEBUG2: cups->header.Duplex = %d\n", cups->header.Duplex);
++      dprintf1("DEBUG2: cups->header.Tumble = %d\n", cups->header.Tumble);
+       dprintf1("DEBUG2: cups->page = %d\n", cups->page);
+       dprintf1("DEBUG2: cupsPPD = %p\n", cupsPPD);
+ 
+@@ -3034,10 +2949,13 @@ cups_put_params(gx_device     *pdev,	/* 
+       {
+ 	xflip = 1;
+ 	if (backsiderequiresflippedmargins &&
+-	    !strcasecmp(backsiderequiresflippedmargins->value, "False"))
++	    !strcasecmp(backsiderequiresflippedmargins->value, "False")) {
++	  dprintf("DEBUG2: (1) Flip: X=1 Y=0\n");
+ 	  yflip = 0;
+-	else
++	} else {
++	  dprintf("DEBUG2: (1) Flip: X=1 Y=1\n");
+ 	  yflip = 1;
++	}
+       }
+       else if (cups->header.Duplex &&
+ 	       (!cups->header.Tumble &&
+@@ -3046,10 +2964,13 @@ cups_put_params(gx_device     *pdev,	/* 
+       {
+ 	xflip = 0;
+ 	if (backsiderequiresflippedmargins &&
+-	    !strcasecmp(backsiderequiresflippedmargins->value, "False"))
++	    !strcasecmp(backsiderequiresflippedmargins->value, "False")) {
++	  dprintf("DEBUG2: (2) Flip: X=0 Y=1\n");
+ 	  yflip = 1;
+-	else
++	} else {
++	  dprintf("DEBUG2: (2) Flip: X=0 Y=0\n");
+ 	  yflip = 0;
++	}
+       }
+       else if (cups->header.Duplex &&
+ 	       ((!cups->header.Tumble &&
+@@ -3061,13 +2982,17 @@ cups_put_params(gx_device     *pdev,	/* 
+       { 
+ 	xflip = 1;
+ 	if (backsiderequiresflippedmargins &&
+-	    !strcasecmp(backsiderequiresflippedmargins->value, "True"))
++	    !strcasecmp(backsiderequiresflippedmargins->value, "True")) {
++	  dprintf("DEBUG2: (3) Flip: X=1 Y=0\n");
+ 	  yflip = 0;
+-	else
++	} else {
++	  dprintf("DEBUG2: (3) Flip: X=1 Y=1\n");
+ 	  yflip = 1;
++	}
+       }
+       else
+       {
++	dprintf("DEBUG2: (4) Flip: X=0 Y=0\n");
+ 	xflip = 0;
+ 	yflip = 0;
+       }
+@@ -3104,9 +3029,20 @@ cups_put_params(gx_device     *pdev,	/* 
+ 	    ((strlen(cups->header.cupsPageSizeName) == 0) ||
+ 	     (strcasecmp(cups->header.cupsPageSizeName, size->name) == 0)) &&
+ #endif
++	    /* We check whether all 4 margins match with the margin info
++	       of the page size in the PPD. Here we check also for swapped
++	       left/right and top/bottom margins as the cups->HWMargins
++	       info can be from the previous page and there the margins
++	       can be swapped due to duplex printing requirements */
+ 	    (!margins_set ||
+-	     (fabs(cups->HWMargins[0] - size->left) < 1.0 &&
+-	      fabs(cups->HWMargins[1] - size->bottom) < 1.0)))
++	     (((fabs(cups->HWMargins[0] - size->left) < 1.0 &&
++		fabs(cups->HWMargins[2] - size->width + size->right) < 1.0) ||
++	       (fabs(cups->HWMargins[0] - size->width + size->right) < 1.0 &&
++		fabs(cups->HWMargins[2] - size->left) < 1.0)) &&
++	      ((fabs(cups->HWMargins[1] - size->bottom) < 1.0 &&
++		fabs(cups->HWMargins[3] - size->length + size->top) < 1.0) ||
++	       (fabs(cups->HWMargins[1] - size->length + size->top) < 1.0 &&
++		fabs(cups->HWMargins[3] - size->bottom) < 1.0)))))
+ 	  break;
+ 
+       if (i > 0)
+@@ -3148,9 +3084,20 @@ cups_put_params(gx_device     *pdev,	/* 
+ 	      ((strlen(cups->header.cupsPageSizeName) == 0) ||
+ 	       (strcasecmp(cups->header.cupsPageSizeName, size->name) == 0)) &&
+ #endif
++	      /* We check whether all 4 margins match with the margin info
++		 of the page size in the PPD. Here we check also for swapped
++		 left/right and top/bottom margins as the cups->HWMargins
++		 info can be from the previous page and there the margins
++		 can be swapped due to duplex printing requirements */
+ 	      (!margins_set ||
+-	       (fabs(cups->HWMargins[0] - size->left) < 1.0 &&
+-		fabs(cups->HWMargins[1] - size->bottom) < 1.0)))
++	       (((fabs(cups->HWMargins[1] - size->left) < 1.0 &&
++		  fabs(cups->HWMargins[3] - size->width + size->right) < 1.0) ||
++		 (fabs(cups->HWMargins[1] - size->width + size->right) < 1.0 &&
++		  fabs(cups->HWMargins[3] - size->left) < 1.0)) &&
++		((fabs(cups->HWMargins[0] - size->bottom) < 1.0 &&
++		  fabs(cups->HWMargins[2] - size->length + size->top) < 1.0) ||
++		 (fabs(cups->HWMargins[0] - size->length + size->top) < 1.0 &&
++		  fabs(cups->HWMargins[2] - size->bottom) < 1.0)))))
+ 	    break;
+ 
+ 	if (i > 0)
+@@ -3258,7 +3205,7 @@ cups_put_params(gx_device     *pdev,	/* 
+   * Reallocate memory if the size or color depth was changed...
+   */
+ 
+-  if (color_set || size_set)
++  if (color_set || size_set || margins_set)
+   {
+    /*
+     * Make sure the page image is the correct size - current Ghostscript
+@@ -3769,13 +3716,22 @@ cups_print_chunked(gx_device_printer *pd
+   unsigned char	*srcptr,		/* Pointer to data */
+ 		*dstptr;		/* Pointer to bits */
+   int		count;			/* Count for loop */
+-  int		flip;			/* Flip scanline? */
++  int		xflip,			/* Flip scanline? */
++                yflip,			/* Reverse scanline order? */
++                ystart, yend, ystep;    /* Loop control for scanline order */   
+   ppd_attr_t    *backside = NULL;
+ 
++  dprintf1("DEBUG2: cups->header.Duplex = %d\n", cups->header.Duplex);
++  dprintf1("DEBUG2: cups->header.Tumble = %d\n", cups->header.Tumble);
++  dprintf1("DEBUG2: cups->page = %d\n", cups->page);
++  dprintf1("DEBUG2: cupsPPD = %p\n", cupsPPD);
++
+   if (cupsPPD) {
+     backside = ppdFindAttr(cupsPPD, "cupsBackSide", NULL);
+-    if (backside)
++    if (backside) {
++      dprintf1("DEBUG2: cupsBackSide = %s\n", backside->value);
+       cupsPPD->flip_duplex = 0;
++    }
+   }
+   if (cups->header.Duplex && cupsPPD &&
+       ((!cups->header.Tumble &&
+@@ -3785,19 +3741,36 @@ cups_print_chunked(gx_device_printer *pd
+ 	(backside && (!strcasecmp(backside->value, "Flipped") ||
+ 		      !strcasecmp(backside->value, "ManualTumble"))))) &&
+       !(cups->page & 1))
+-    flip = 1;
++    xflip = 1;
+   else
+-    flip = 0;
++    xflip = 0;
++  if (cups->header.Duplex && cupsPPD &&
++      ((!cups->header.Tumble &&
++	(cupsPPD->flip_duplex ||
++	 (backside && (!strcasecmp(backside->value, "Flipped") ||
++		       !strcasecmp(backside->value, "Rotated"))))) ||
++       (cups->header.Tumble &&
++	(backside && !strcasecmp(backside->value, "ManualTumble")))) &&
++      !(cups->page & 1)) {
++    yflip = 1;
++    ystart = cups->height - 1;
++    yend = -1;
++    ystep = -1;
++  } else {
++    yflip = 0;
++    ystart = 0;
++    yend = cups->height;
++    ystep = 1;
++  }
+ 
+-  dprintf2("DEBUG: cups_print_chunked - flip = %d, height = %d\n",
+-	   flip, cups->height);
++  dprintf3("DEBUG: cups_print_chunked: xflip = %d, yflip = %d, height = %d\n",
++	   xflip, yflip, cups->height);
+ 
+  /*
+   * Loop through the page bitmap and write chunked pixels, reversing as
+   * needed...
+   */
+-
+-  for (y = 0; y < cups->height; y ++)
++  for (y = ystart; y != yend; y += ystep)
+   {
+    /*
+     * Grab the scanline data...
+@@ -3809,7 +3782,7 @@ cups_print_chunked(gx_device_printer *pd
+       gs_exit(gs_lib_ctx_get_non_gc_memory_t(), 1);
+     }
+ 
+-    if (flip)
++    if (xflip)
+     {
+      /*
+       * Flip the raster data before writing it...
+@@ -3963,13 +3936,22 @@ cups_print_banded(gx_device_printer *pde
+   unsigned char	*srcptr;		/* Pointer to data */
+   unsigned char	*cptr, *mptr, *yptr,	/* Pointer to components */
+ 		*kptr, *lcptr, *lmptr;	/* ... */
+-  int		flip;			/* Flip scanline? */
++  int		xflip,			/* Flip scanline? */
++                yflip,			/* Reverse scanline order? */
++                ystart, yend, ystep;    /* Loop control for scanline order */   
+   ppd_attr_t    *backside = NULL;
+ 
++  dprintf1("DEBUG2: cups->header.Duplex = %d\n", cups->header.Duplex);
++  dprintf1("DEBUG2: cups->header.Tumble = %d\n", cups->header.Tumble);
++  dprintf1("DEBUG2: cups->page = %d\n", cups->page);
++  dprintf1("DEBUG2: cupsPPD = %p\n", cupsPPD);
++
+   if (cupsPPD) {
+     backside = ppdFindAttr(cupsPPD, "cupsBackSide", NULL);
+-    if (backside)
++    if (backside) {
++      dprintf1("DEBUG2: cupsBackSide = %s\n", backside->value);
+       cupsPPD->flip_duplex = 0;
++    }
+   }
+   if (cups->header.Duplex && cupsPPD &&
+       ((!cups->header.Tumble &&
+@@ -3979,12 +3961,30 @@ cups_print_banded(gx_device_printer *pde
+ 	(backside && (!strcasecmp(backside->value, "Flipped") ||
+ 		      !strcasecmp(backside->value, "ManualTumble"))))) &&
+       !(cups->page & 1))
+-    flip = 1;
++    xflip = 1;
+   else
+-    flip = 0;
++    xflip = 0;
++  if (cups->header.Duplex && cupsPPD &&
++      ((!cups->header.Tumble &&
++	(cupsPPD->flip_duplex ||
++	 (backside && (!strcasecmp(backside->value, "Flipped") ||
++		       !strcasecmp(backside->value, "Rotated"))))) ||
++       (cups->header.Tumble &&
++	(backside && !strcasecmp(backside->value, "ManualTumble")))) &&
++      !(cups->page & 1)) {
++    yflip = 1;
++    ystart = cups->height - 1;
++    yend = -1;
++    ystep = -1;
++  } else {
++    yflip = 0;
++    ystart = 0;
++    yend = cups->height;
++    ystep = 1;
++  }
+ 
+-  dprintf2("DEBUG: cups_print_banded - flip = %d, height = %d\n",
+-	   flip, cups->height);
++  dprintf3("DEBUG: cups_print_chunked: xflip = %d, yflip = %d, height = %d\n",
++	   xflip, yflip, cups->height);
+ 
+  /*
+   * Loop through the page bitmap and write banded pixels...  We have
+@@ -4001,7 +4001,7 @@ cups_print_banded(gx_device_printer *pde
+     bandbytes = cups->header.cupsBytesPerLine / cups->color_info.num_components;
+ #endif /* CUPS_RASTER_SYNCv1 */
+ 
+-  for (y = 0; y < cups->height; y ++)
++  for (y = ystart; y != yend; y += ystep)
+   {
+    /*
+     * Grab the scanline data...
+@@ -4021,7 +4021,7 @@ cups_print_banded(gx_device_printer *pde
+       memset(dst, 0, cups->header.cupsBytesPerLine);
+     else
+     {
+-      if (flip)
++      if (xflip)
+         cptr = dst + bandbytes - 1;
+       else
+         cptr = dst;
+@@ -4040,7 +4040,7 @@ cups_print_banded(gx_device_printer *pde
+             switch (cups->header.cupsColorSpace)
+ 	    {
+ 	      default :
+-	          for (x = cups->width, bit = flip ? 1 << (x & 7) : 128;
++	          for (x = cups->width, bit = xflip ? 1 << (x & 7) : 128;
+ 		       x > 0;
+ 		       x --, srcptr ++)
+ 		  {
+@@ -4051,7 +4051,7 @@ cups_print_banded(gx_device_printer *pde
+ 		    if (*srcptr & 0x10)
+ 		      *yptr |= bit;
+ 
+-                    if (flip)
++                    if (xflip)
+ 		    {
+ 		      if (bit < 128)
+ 			bit <<= 1;
+@@ -4077,7 +4077,7 @@ cups_print_banded(gx_device_printer *pde
+ 		    if (*srcptr & 0x1)
+ 		      *yptr |= bit;
+ 
+-                    if (flip)
++                    if (xflip)
+ 		    {
+ 		      if (bit < 128)
+ 			bit <<= 1;
+@@ -4107,7 +4107,7 @@ cups_print_banded(gx_device_printer *pde
+ 	      case CUPS_CSPACE_CMYK :
+ 	      case CUPS_CSPACE_YMCK :
+ 	      case CUPS_CSPACE_KCMY :
+-	          for (x = cups->width, bit = flip ? 1 << (x & 7) : 128;
++	          for (x = cups->width, bit = xflip ? 1 << (x & 7) : 128;
+ 		       x > 0;
+ 		       x --, srcptr ++)
+ 		  {
+@@ -4120,7 +4120,7 @@ cups_print_banded(gx_device_printer *pde
+ 		    if (*srcptr & 0x10)
+ 		      *kptr |= bit;
+ 
+-                    if (flip)
++                    if (xflip)
+ 		    {
+ 		      if (bit < 128)
+ 			bit <<= 1;
+@@ -4149,7 +4149,7 @@ cups_print_banded(gx_device_printer *pde
+ 		    if (*srcptr & 0x1)
+ 		      *kptr |= bit;
+ 
+-                    if (flip)
++                    if (xflip)
+ 		    {
+ 		      if (bit < 128)
+ 			bit <<= 1;
+@@ -4175,7 +4175,7 @@ cups_print_banded(gx_device_printer *pde
+ 		  }
+ 	          break;
+ 	      case CUPS_CSPACE_KCMYcm :
+-	          for (x = cups->width, bit = flip ? 1 << (x & 7) : 128;
++	          for (x = cups->width, bit = xflip ? 1 << (x & 7) : 128;
+ 		       x > 0;
+ 		       x --, srcptr ++)
+ 		  {
+@@ -4198,7 +4198,7 @@ cups_print_banded(gx_device_printer *pde
+ 		    if (*srcptr & 0x01)
+ 		      *lmptr |= bit;
+ 
+-                    if (flip)
++                    if (xflip)
+ 		    {
+ 		      if (bit < 128)
+ 			bit <<= 1;
+@@ -4236,7 +4236,7 @@ cups_print_banded(gx_device_printer *pde
+             switch (cups->header.cupsColorSpace)
+ 	    {
+ 	      default :
+-	          for (x = cups->width, bit = flip ? 3 << (2 * (x & 3)) : 0xc0;
++	          for (x = cups->width, bit = xflip ? 3 << (2 * (x & 3)) : 0xc0;
+ 		       x > 0;
+ 		       x --, srcptr ++)
+ 		    switch (bit)
+@@ -4249,7 +4249,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *yptr |= temp << 6;
+ 
+-                          if (flip)
++                          if (xflip)
+ 			  {
+ 			    bit = 0x03;
+ 			    cptr --;
+@@ -4267,7 +4267,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *yptr |= temp << 4;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0xc0;
+ 			  else
+ 			    bit = 0x0c;
+@@ -4280,7 +4280,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *yptr |= temp << 2;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0x30;
+ 			  else
+ 			    bit = 0x03;
+@@ -4293,7 +4293,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *yptr |= temp;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0x0c;
+ 			  else
+ 			  {
+@@ -4313,7 +4313,7 @@ cups_print_banded(gx_device_printer *pde
+ 	      case CUPS_CSPACE_YMCK :
+ 	      case CUPS_CSPACE_KCMY :
+ 	      case CUPS_CSPACE_KCMYcm :
+-	          for (x = cups->width, bit = flip ? 3 << (2 * (x & 3)) : 0xc0;
++	          for (x = cups->width, bit = xflip ? 3 << (2 * (x & 3)) : 0xc0;
+ 		       x > 0;
+ 		       x --, srcptr ++)
+ 		    switch (bit)
+@@ -4328,7 +4328,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *kptr |= temp << 6;
+ 
+-                          if (flip)
++                          if (xflip)
+ 			  {
+ 			    bit = 0x03;
+ 			    cptr --;
+@@ -4349,7 +4349,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *kptr |= temp << 4;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0xc0;
+ 			  else
+ 			    bit = 0x0c;
+@@ -4364,7 +4364,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *kptr |= temp << 2;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0x30;
+ 			  else
+ 			    bit = 0x03;
+@@ -4379,7 +4379,7 @@ cups_print_banded(gx_device_printer *pde
+ 			  if ((temp = *srcptr & 0x03) != 0)
+ 			    *kptr |= temp;
+ 
+-			  if (flip)
++			  if (xflip)
+ 			    bit = 0x0c;
+ 			  else
+ 			  {
+@@ -4401,7 +4401,7 @@ cups_print_banded(gx_device_printer *pde
+             switch (cups->header.cupsColorSpace)
+ 	    {
+ 	      default :
+-	          for (x = cups->width, bit = flip && (x & 1) ? 0xf0 : 0x0f;
++	          for (x = cups->width, bit = xflip && (x & 1) ? 0xf0 : 0x0f;
+ 		       x > 0;
+ 		       x --, srcptr += 2)
+ 		    switch (bit)
+@@ -4416,7 +4416,7 @@ cups_print_banded(gx_device_printer *pde
+ 
+ 			  bit = 0x0f;
+ 
+-                          if (flip)
++                          if (xflip)
+ 			  {
+ 			    cptr --;
+ 			    mptr --;
+@@ -4433,7 +4433,7 @@ cups_print_banded(gx_device_printer *pde
+ 
+ 			  bit = 0xf0;
+ 
+-                          if (!flip)
++                          if (!xflip)
+ 			  {
+ 			    cptr ++;
+ 			    mptr ++;
+@@ -4450,7 +4450,7 @@ cups_print_banded(gx_device_printer *pde
+ 	      case CUPS_CSPACE_YMCK :
+ 	      case CUPS_CSPACE_KCMY :
+ 	      case CUPS_CSPACE_KCMYcm :
+-	          for (x = cups->width, bit = flip && (x & 1) ? 0xf0 : 0x0f;
++	          for (x = cups->width, bit = xflip && (x & 1) ? 0xf0 : 0x0f;
+ 		       x > 0;
+ 		       x --, srcptr += 2)
+ 		    switch (bit)
+@@ -4467,7 +4467,7 @@ cups_print_banded(gx_device_printer *pde
+ 
+ 			  bit = 0x0f;
+ 
+-                          if (flip)
++                          if (xflip)
+ 			  {
+ 			    cptr --;
+ 			    mptr --;
+@@ -4487,7 +4487,7 @@ cups_print_banded(gx_device_printer *pde
+ 
+ 			  bit = 0xf0;
+ 
+-                          if (!flip)
++                          if (!xflip)
+ 			  {
+ 			    cptr ++;
+ 			    mptr ++;
+@@ -4504,7 +4504,7 @@ cups_print_banded(gx_device_printer *pde
+             switch (cups->header.cupsColorSpace)
+ 	    {
+ 	      default :
+-	          if (flip)
++	          if (xflip)
+ 	            for (x = cups->width; x > 0; x --)
+ 		    {
+ 		      *cptr-- = *srcptr++;
+@@ -4527,7 +4527,7 @@ cups_print_banded(gx_device_printer *pde
+ 	      case CUPS_CSPACE_YMCK :
+ 	      case CUPS_CSPACE_KCMY :
+ 	      case CUPS_CSPACE_KCMYcm :
+-	          if (flip)
++	          if (xflip)
+ 	            for (x = cups->width; x > 0; x --)
+ 		    {
+ 		      *cptr-- = *srcptr++;
+@@ -4551,7 +4551,7 @@ cups_print_banded(gx_device_printer *pde
+             switch (cups->header.cupsColorSpace)
+ 	    {
+ 	      default :
+-	          if (flip)
++	          if (xflip)
+ 	            for (x = cups->width; x > 0; x --, srcptr += 6)
+ 		    {
+ 		      *cptr-- = srcptr[1];
+@@ -4580,7 +4580,7 @@ cups_print_banded(gx_device_printer *pde
+ 	      case CUPS_CSPACE_YMCK :
+ 	      case CUPS_CSPACE_KCMY :
+ 	      case CUPS_CSPACE_KCMYcm :
+-	          if (flip)
++	          if (xflip)
+ 	            for (x = cups->width; x > 0; x --, srcptr += 8)
+ 		    {
+ 		      *cptr-- = srcptr[1];
diff --git a/ghostscript.spec b/ghostscript.spec
index 1e3bba6..fcf8f37 100644
--- a/ghostscript.spec
+++ b/ghostscript.spec
@@ -5,7 +5,7 @@ Summary: A PostScript interpreter and renderer.
 Name: ghostscript
 Version: %{gs_ver}
 
-Release: 2%{?dist}
+Release: 3%{?dist}
 
 # Included CMap data is Redistributable, no modification permitted,
 # see http://bugzilla.redhat.com/487510
@@ -27,6 +27,7 @@ Patch8: ghostscript-jbig2dec-nullderef.patch
 Patch9: ghostscript-gs-executable.patch
 Patch10: ghostscript-CVE-2009-4270.patch
 Patch11: ghostscript-vsnprintf.patch
+Patch12: ghostscript-gdevcups-y-axis.patch
 
 Requires: urw-fonts >= 1.1, ghostscript-fonts
 BuildRequires: xz
@@ -123,6 +124,10 @@ rm -rf libpng zlib jpeg jasper
 # Harden ghostscript's debugging output functions (bug #540760).
 %patch11 -p1 -b .vsnprintf
 
+# Fixed gdevcups duplex output (bug #541604) by backporting upstream
+# revision 10625.
+%patch12 -p1 -b .gdevcups-y-axis
+
 # Convert manual pages to UTF-8
 from8859_1() {
 	iconv -f iso-8859-1 -t utf-8 < "$1" > "${1}_"
@@ -304,6 +309,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/libgs.so
 
 %changelog
+* Thu Jan 21 2010 Tim Waugh <twaugh@redhat.com> 8.70-3
+- Fixed gdevcups duplex output (bug #541604) by backporting upstream
+  revision 10625.
+
 * Thu Dec 24 2009 Tim Waugh <twaugh@redhat.com> 8.70-2
 - Fix debugging output from gdevcups (CVE-2009-4270, bug #540760).
 - Harden ghostscript's debugging output functions (bug #540760).