[gegl] jpg-save: Set default MCUs and use no restart markers

[Mukund Sivaraman <muks src gnome org>]

commit da75c7508d1a16c53787c0b2cdec2e1b2fc36221
Author: Mukund Sivaraman <muks banu com>
Date:   Thu Sep 8 12:23:10 2011 +0530

    jpg-save: Set default MCUs and use no restart markers

 operations/external/jpg-save.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/operations/external/jpg-save.c b/operations/external/jpg-save.c
index 16ed185..11cd2f3 100644
--- a/operations/external/jpg-save.c
+++ b/operations/external/jpg-save.c
@@ -90,6 +90,18 @@ gegl_buffer_export_jpg (GeglBuffer  *gegl_buffer,
   if (progressive)
     jpeg_simple_progression (&cinfo);
 
+  /* Use 1x1,1x1,1x1 MCUs and no subsampling */
+  cinfo.comp_info[0].h_samp_factor = 1;
+  cinfo.comp_info[0].v_samp_factor = 1;
+  cinfo.comp_info[1].h_samp_factor = 1;
+  cinfo.comp_info[1].v_samp_factor = 1;
+  cinfo.comp_info[2].h_samp_factor = 1;
+  cinfo.comp_info[2].v_samp_factor = 1;
+
+  /* No restart markers */
+  cinfo.restart_interval = 0;
+  cinfo.restart_in_rows = 0;
+
   jpeg_start_compress (&cinfo, TRUE);
 
   row_stride = width * 3;