Fix for 687294 psdcmyk device does not write resolution correctly to PSD files

Fix for 687294 psdcmyk device does not write resolution correctly to PSD
files.
This change adds a 'ResolutionInfo structure' into the 'Image Resources'
section of the output file.  This structure specifies the horizontal and
vertical
resolution of the image.  (Note:  Adobe's support of asymetric resolutions
is
poor.)


DETAILS.
Index: src/gdevpsd.c
===================================================================
RCS file: /cvs/ghostscript/gs/src/gdevpsd.c,v
retrieving revision 1.5
diff -u -r1.5 gdevpsd.c
--- src/gdevpsd.c       10 Jul 2003 22:32:04 -0000      1.5
+++ src/gdevpsd.c       14 Feb 2004 08:31:26 -0000
@@ -999,7 +999,8 @@
        chan_names_len += (separation_name->size + 1);
     }
     psd_write_32(xc, 12 + (chan_names_len + (chan_names_len % 2))
-                       + (12 + (14*xc->n_extra_channels)));
+                       + (12 + (14*xc->n_extra_channels))
+                       + 28);
     psd_write(xc, (const byte *)"8BIM", 4);
     psd_write_16(xc, 1006); /* 0x03EE */
     psd_write_16(xc, 0); /* PString */
@@ -1035,6 +1036,19 @@
        psd_write_8(xc, 2); /* Don't know */
        psd_write_8(xc, 0); /* Padding - Always Zero */
     }
+    /* Image resolution */
+    psd_write(xc, (const byte *)"8BIM", 4);
+    psd_write_16(xc, 1005); /* 0x03ED */
+    psd_write_16(xc, 0); /* PString */
+    psd_write_32(xc, 16); /* Length */
+               /* Resolution is specified as a fixed 16.16 bits */
+    psd_write_32(xc, (int) (pdev->HWResolution[0] * 0x10000));
+    psd_write_16(xc, 1);       /* width:  1 --> resolution is pixels per
inch */
+    psd_write_16(xc, 1);       /* width:  1 --> resolution is pixels per
inch */
+    psd_write_32(xc, (int) (pdev->HWResolution[1] * 0x10000));
+    psd_write_16(xc, 1);       /* height:  1 --> resolution is pixels per
inch */
+    psd_write_16(xc, 1);       /* height:  1 --> resolution is pixels per
inch */
+
     /* Layer and Mask information */
     psd_write_32(xc, 0);