[gs-commits] ghostpdl branch, pdfi, updated. jbig2dec-0.14-2191-g32a11ee

The ghostpdl branch, pdfi has been updated
       via  32a11ee798e3c0bb7c33c9a8286dada7be9e1232 (commit)
      from  ee49a9b7cb87478083c9f35b86fb03dcf5914a1b (commit)

----------------------------------------------------------------------
commit 32a11ee798e3c0bb7c33c9a8286dada7be9e1232
Author: Nancy Durgin <[email protected]>
Date:   Wed Aug 28 09:11:51 2019 -0700

    Disable "GrayBackground" in SMask for now (set to 0)
    
    This value is supposed to be "currentgray" which is apparently
    a lot more complicated to calculate than one might suppose.
    Default it back to 0, which gets rid of extra gray bars on some samples,
    but breaks a few other ones.  Need to fix this later.
    
    See pdf_draw.ps/gssmask, zbegintransparencymaskgroup(), and zcurrentgray().
    
    Test sample: ~/work/samples/tests_private/comparefiles/Bug694293.pdf

diff --git a/pdf/pdf_trans.c b/pdf/pdf_trans.c
index 05cdc00..324ef8a 100644
--- a/pdf/pdf_trans.c
+++ b/pdf/pdf_trans.c
@@ -160,10 +160,15 @@ static int pdfi_trans_set_mask(pdf_context *ctx, pdfi_int_gstate *igs, int color
                 if (code < 0)
                     break;
                 params.Background[i] = (float)num;
-                if (i == 0)
-                    params.GrayBackground = (float)num;
             }
             params.Background_components = pdfi_array_size(BC);
+
+            /* TODO: Not sure how to handle this...  recheck PS code (pdf_draw.ps/gssmask) */
+            /* This should be "currentgray" for the color that we put in params.ColorSpace,
+             * It looks super-convoluted to actually get this value.  Really?
+             * (see zcurrentgray())
+             */
+            params.GrayBackground = 0; /* TODO */
         }
 
         code = gs_begin_transparency_mask(ctx->pgs, &params, &bbox, true);


Summary of changes:
 pdf/pdf_trans.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)