From 090cc76faa748b6cb81d16ad91360c1be79534e5 Mon Sep 17 00:00:00 2001
From: Vikrant <vikrantmalik051@gmail.com>
Date: Fri, 31 Jul 2020 19:48:33 +0530
Subject: [PATCH] Added documentation of pclmtoraster filter

---
 .gitignore  |  1 +
 Makefile.am |  1 +
 README      | 44 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+)

diff --git a/.gitignore b/.gitignore
index 53be45946..c85e789b1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -71,6 +71,7 @@ gstoraster
 imagetopdf
 imagetoraster
 mupdftoraster
+pclmtoraster
 pdftoijs
 pdftoopvp
 pdftopdf
diff --git a/Makefile.am b/Makefile.am
index cc8f2718a..7f21e7d05 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -858,6 +858,7 @@ pclmtoraster_SOURCES = \
 pclmtoraster_CXXFLAGS = \
 	-I$(srcdir)/cupsfilters/ \
 	-I$(srcdir)/ppd/ \
+	-std=c++11 \
 	$(CUPS_CFLAGS) \
 	$(LIBQPDF_CFLAGS)
 pclmtoraster_LDADD = \
diff --git a/README b/README
index c0f2efd02..7fd92503e 100644
--- a/README
+++ b/README
@@ -1106,6 +1106,50 @@ created PDF data.
 in the location specified by TMPDIR environment variable. Default location
 is "/tmp".
 
+PCLMTORASTER
+===========
+
+1. INTRODUCTION
+
+"pclmtoraster" is a filter for pclm and raster-only pdf files.
+It reads the raster graphics from each page using the QPDF API and converts
+it to CUPS/PWG Raster. This filter supports all PCLm files. PDF files with
+single page bitmap for each page and one of the following colorspaces with
+8 Bits-per-component are supported DeviceGray, DeviceRGB and DeviceCMYK.
+
+2. LICENSE
+
+Almost all source files are under MIT like license.
+
+The required libqpdf is available under version 2.0 of the Apache License,
+e.g. here: https://github.com/qpdf/qpdf
+
+3. ENVIRONMENT VARIABLES
+
+This program refers the following environment variable;
+   PPD:  PPD file name of the printer.
+
+4. COMMAND OPTIONS
+
+1) Bi-Level output
+
+print-color-mode=bi-level
+
+Use "bi-level" color mode to apply threshold dithering for 1 bit B/W outputs.
+By default, ordered dithering is used.
+
+For other options, see CUPS documents for more details.
+
+5. INFORMATION FOR DEVELOPERS
+
+Following information is for developers, not for driver users.
+
+5.1 Temporally files location
+
+"pclmtoraster" creates temporally files if needed. Temporary files are created
+in the location specified by TMPDIR environment variable. Default location
+is "/tmp".
+
 
 URFTOPDF
 ========
-- 
2.47.2