net-print/cups-filters/files/cups-filters-2.0.0-Corrected-color-space-mapping-in-cups.patch

From f08c698a40f8fc6f91f09445038b1aaeba1f04b2 Mon Sep 17 00:00:00 2001
From: Till Kamppeter <till.kamppeter@gmail.com>
Date: Thu, 3 Dec 2020 23:46:25 +0100
Subject: [PATCH] libcupsfilters: Corrected color space mapping in
 cupsRasterParseIPPOptions()

---
 NEWS                 |  6 +++++
 cupsfilters/raster.c | 64 +++++++++++++++++++++++++++++++++++---------
 2 files changed, 57 insertions(+), 13 deletions(-)

diff --git a/NEWS b/NEWS
index 738f0eb8..a7a76e58 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,12 @@
 NEWS - OpenPrinting CUPS Filters v1.28.5 - 2020-10-13
 -----------------------------------------------------
 
+CHANGES IN V2.0.0
+
+	- libcupsfilters: In the cupsRasterParseIPPOptions() map the
+	  color spaces the same way as in the PPD generator (Issue
+	  #326, Pull request #327).	
+
 CHANGES IN V1.28.5
 
 	- cups-browsed: UUID from IPP response was used after its
diff --git a/cupsfilters/raster.c b/cupsfilters/raster.c
index c8e2b8f9..45ce8d6b 100644
--- a/cupsfilters/raster.c
+++ b/cupsfilters/raster.c
@@ -771,6 +771,25 @@ cupsRasterParseIPPOptions(cups_page_header2_t *h, /* I - Raster header */
       colorspace = 20;
       numcolors = 3;
     }
+    else if (!strncasecmp(val, "adobe-rgb", 9))
+    {
+      if (*(val + 9) == '_' || *(val + 9) == '-')
+	ptr = val + 10;
+      colorspace = 20;
+      numcolors = 3;
+    }
+    else if (!strcasecmp(val, "auto-monochrome"))
+    {
+      colorspace = 18;
+      numcolors = 1;
+    }
+    else if (!strcasecmp(val, "bi-level") ||
+	     !strcasecmp(val, "process-bi-level"))
+    {
+      bitspercolor = 1;
+      colorspace = 3;
+      numcolors = 1;
+    }
     else if (!strncasecmp(val, "Black", 5))
     {
       if (*(val + 5) == '_' || *(val + 5) == '-')
@@ -779,22 +798,30 @@ cupsRasterParseIPPOptions(cups_page_header2_t *h, /* I - Raster header */
       colorspace = 3;
       numcolors = 1;
     }
+    else if (!strcasecmp(val, "process-monochrome"))
+    {
+      colorspace = 18;
+      numcolors = 1;
+    }
     else if (!strncasecmp(val, "Monochrome", 10))
     {
       if (*(val + 10) == '_' || *(val + 10) == '-')
 	ptr = val + 11;
-      bitspercolor = 1;
-      colorspace = 3;
+      colorspace = 18;
       numcolors = 1;
     }
     else if (!strncasecmp(val, "Mono", 4))
     {
       if (*(val + 4) == '_' || *(val + 4) == '-')
 	ptr = val + 5;
-      bitspercolor = 1;
-      colorspace = 3;
+      colorspace = 18;
       numcolors = 1;
     }
+    else if (!strcasecmp(val, "color"))
+    {
+      colorspace = 19;
+      numcolors = 3;
+    }
     else if (!strncasecmp(val, "Cmyk", 4))
     {
       if (*(val + 4) == '_' || *(val + 4) == '-')
@@ -835,7 +862,7 @@ cupsRasterParseIPPOptions(cups_page_header2_t *h, /* I - Raster header */
     {
       if (*(val + 4) == '_' || *(val + 4) == '-')
 	ptr = val + 5;
-      colorspace = 3;
+      colorspace = 18;
       numcolors = 1;
     }
     else if (!strncasecmp(val, "Srgb", 4))
@@ -859,6 +886,17 @@ cupsRasterParseIPPOptions(cups_page_header2_t *h, /* I - Raster header */
       colorspace = 1;
       numcolors = 3;
     }
+    else if (!strcasecmp(val, "auto"))
+    {
+      /* Let "auto" not look like an error */
+      if (set_defaults)
+      {
+	fprintf(stderr,
+		"DEBUG: \"Auto\" mode, using default RGB color space.\n");
+	colorspace = 19;
+	numcolors = 3;
+      }
+    }
     if (numcolors > 0)
     {
       if (ptr)
@@ -879,19 +917,19 @@ cupsRasterParseIPPOptions(cups_page_header2_t *h, /* I - Raster header */
       fprintf(stderr, "DEBUG: Bad color space value \"%s\".\n", val);
       if (set_defaults)
       {
-	h->cupsBitsPerColor = 1;
-	h->cupsBitsPerPixel = 1;
-	h->cupsColorSpace = 3;
-	h->cupsNumColors = 1;
+	h->cupsBitsPerColor = 8;
+	h->cupsBitsPerPixel = 24;
+	h->cupsColorSpace = 19;
+	h->cupsNumColors = 3;
       }
     }
   }
   else if (set_defaults)
   {
-    h->cupsBitsPerColor = 1;
-    h->cupsBitsPerPixel = 1;
-    h->cupsColorSpace = 3;
-    h->cupsNumColors = 1;
+    h->cupsBitsPerColor = 8;
+    h->cupsBitsPerPixel = 24;
+    h->cupsColorSpace = 19;
+    h->cupsNumColors = 3;
   }
 
   h->cupsBytesPerLine = (h->cupsWidth * h->cupsBitsPerPixel + 7) / 8;
-- 
2.29.2.576.ga3fc446d84-goog