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authorRemko Tronçon <git@el-tramo.be>2009-06-01 12:13:57 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 12:13:57 (GMT)
commite16c66185e9f633a05911d708e6404d9f741c7b1 (patch)
tree0fbf13ca770c61ddb4d9976be7ab549cf881ba70 /3rdParty/LCov/genpng
parentc1885ea7854df8cf79d04db903b4352934190749 (diff)
downloadswift-e16c66185e9f633a05911d708e6404d9f741c7b1.zip
swift-e16c66185e9f633a05911d708e6404d9f741c7b1.tar.bz2
Added LCov.
Diffstat (limited to '3rdParty/LCov/genpng')
-rwxr-xr-x3rdParty/LCov/genpng381
1 files changed, 381 insertions, 0 deletions
diff --git a/3rdParty/LCov/genpng b/3rdParty/LCov/genpng
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+#!/usr/bin/perl -w
+#
+# Copyright (c) International Business Machines Corp., 2002
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or (at
+# your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+#
+# genpng
+#
+# This script creates an overview PNG image of a source code file by
+# representing each source code character by a single pixel.
+#
+# Note that the PERL module GD.pm is required for this script to work.
+# It may be obtained from http://www.cpan.org
+#
+# History:
+# 2002-08-26: created by Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com>
+#
+
+use strict;
+use File::Basename;
+use Getopt::Long;
+
+
+# Constants
+our $lcov_version = "LCOV version 1.7";
+our $lcov_url = "http://ltp.sourceforge.net/coverage/lcov.php";
+our $tool_name = basename($0);
+
+
+# Prototypes
+sub gen_png($$$@);
+sub check_and_load_module($);
+sub genpng_print_usage(*);
+sub genpng_process_file($$$$);
+sub warn_handler($);
+sub die_handler($);
+
+
+#
+# Code entry point
+#
+
+# Check whether required module GD.pm is installed
+if (check_and_load_module("GD"))
+{
+ # Note: cannot use die() to print this message because inserting this
+ # code into another script via do() would not fail as required!
+ print(STDERR <<END_OF_TEXT)
+ERROR: required module GD.pm not found on this system (see www.cpan.org).
+END_OF_TEXT
+ ;
+ exit(2);
+}
+
+# Check whether we're called from the command line or from another script
+if (!caller)
+{
+ my $filename;
+ my $tab_size = 4;
+ my $width = 80;
+ my $out_filename;
+ my $help;
+ my $version;
+
+ $SIG{__WARN__} = \&warn_handler;
+ $SIG{__DIE__} = \&die_handler;
+
+ # Parse command line options
+ if (!GetOptions("tab-size=i" => \$tab_size,
+ "width=i" => \$width,
+ "output-filename=s" => \$out_filename,
+ "help" => \$help,
+ "version" => \$version))
+ {
+ print(STDERR "Use $tool_name --help to get usage ".
+ "information\n");
+ exit(1);
+ }
+
+ $filename = $ARGV[0];
+
+ # Check for help flag
+ if ($help)
+ {
+ genpng_print_usage(*STDOUT);
+ exit(0);
+ }
+
+ # Check for version flag
+ if ($version)
+ {
+ print("$tool_name: $lcov_version\n");
+ exit(0);
+ }
+
+ # Check options
+ if (!$filename)
+ {
+ die("No filename specified\n");
+ }
+
+ # Check for output filename
+ if (!$out_filename)
+ {
+ $out_filename = "$filename.png";
+ }
+
+ genpng_process_file($filename, $out_filename, $width, $tab_size);
+ exit(0);
+}
+
+
+#
+# genpng_print_usage(handle)
+#
+# Write out command line usage information to given filehandle.
+#
+
+sub genpng_print_usage(*)
+{
+ local *HANDLE = $_[0];
+
+ print(HANDLE <<END_OF_USAGE)
+Usage: $tool_name [OPTIONS] SOURCEFILE
+
+Create an overview image for a given source code file of either plain text
+or .gcov file format.
+
+ -h, --help Print this help, then exit
+ -v, --version Print version number, then exit
+ -t, --tab-size TABSIZE Use TABSIZE spaces in place of tab
+ -w, --width WIDTH Set width of output image to WIDTH pixel
+ -o, --output-filename FILENAME Write image to FILENAME
+
+For more information see: $lcov_url
+END_OF_USAGE
+ ;
+}
+
+
+#
+# check_and_load_module(module_name)
+#
+# Check whether a module by the given name is installed on this system
+# and make it known to the interpreter if available. Return undefined if it
+# is installed, an error message otherwise.
+#
+
+sub check_and_load_module($)
+{
+ eval("use $_[0];");
+ return $@;
+}
+
+
+#
+# genpng_process_file(filename, out_filename, width, tab_size)
+#
+
+sub genpng_process_file($$$$)
+{
+ my $filename = $_[0];
+ my $out_filename = $_[1];
+ my $width = $_[2];
+ my $tab_size = $_[3];
+ local *HANDLE;
+ my @source;
+
+ open(HANDLE, "<$filename")
+ or die("ERROR: cannot open $filename!\n");
+
+ # Check for .gcov filename extension
+ if ($filename =~ /^(.*).gcov$/)
+ {
+ # Assume gcov text format
+ while (<HANDLE>)
+ {
+ if (/^\t\t(.*)$/)
+ {
+ # Uninstrumented line
+ push(@source, ":$1");
+ }
+ elsif (/^ ###### (.*)$/)
+ {
+ # Line with zero execution count
+ push(@source, "0:$1");
+ }
+ elsif (/^( *)(\d*) (.*)$/)
+ {
+ # Line with positive execution count
+ push(@source, "$2:$3");
+ }
+ }
+ }
+ else
+ {
+ # Plain text file
+ while (<HANDLE>) { push(@source, ":$_"); }
+ }
+ close(HANDLE);
+
+ gen_png($out_filename, $width, $tab_size, @source);
+}
+
+
+#
+# gen_png(filename, width, tab_size, source)
+#
+# Write an overview PNG file to FILENAME. Source code is defined by SOURCE
+# which is a list of lines <count>:<source code> per source code line.
+# The output image will be made up of one pixel per character of source,
+# coloring will be done according to execution counts. WIDTH defines the
+# image width. TAB_SIZE specifies the number of spaces to use as replacement
+# string for tabulator signs in source code text.
+#
+# Die on error.
+#
+
+sub gen_png($$$@)
+{
+ my $filename = shift(@_); # Filename for PNG file
+ my $overview_width = shift(@_); # Imagewidth for image
+ my $tab_size = shift(@_); # Replacement string for tab signs
+ my @source = @_; # Source code as passed via argument 2
+ my $height = scalar(@source); # Height as define by source size
+ my $overview; # Source code overview image data
+ my $col_plain_back; # Color for overview background
+ my $col_plain_text; # Color for uninstrumented text
+ my $col_cov_back; # Color for background of covered lines
+ my $col_cov_text; # Color for text of covered lines
+ my $col_nocov_back; # Color for background of lines which
+ # were not covered (count == 0)
+ my $col_nocov_text; # Color for test of lines which were not
+ # covered (count == 0)
+ my $col_hi_back; # Color for background of highlighted lines
+ my $col_hi_text; # Color for text of highlighted lines
+ my $line; # Current line during iteration
+ my $row = 0; # Current row number during iteration
+ my $column; # Current column number during iteration
+ my $color_text; # Current text color during iteration
+ my $color_back; # Current background color during iteration
+ my $last_count; # Count of last processed line
+ my $count; # Count of current line
+ my $source; # Source code of current line
+ my $replacement; # Replacement string for tabulator chars
+ local *PNG_HANDLE; # Handle for output PNG file
+
+ # Create image
+ $overview = new GD::Image($overview_width, $height)
+ or die("ERROR: cannot allocate overview image!\n");
+
+ # Define colors
+ $col_plain_back = $overview->colorAllocate(0xff, 0xff, 0xff);
+ $col_plain_text = $overview->colorAllocate(0xaa, 0xaa, 0xaa);
+ $col_cov_back = $overview->colorAllocate(0xaa, 0xa7, 0xef);
+ $col_cov_text = $overview->colorAllocate(0x5d, 0x5d, 0xea);
+ $col_nocov_back = $overview->colorAllocate(0xff, 0x00, 0x00);
+ $col_nocov_text = $overview->colorAllocate(0xaa, 0x00, 0x00);
+ $col_hi_back = $overview->colorAllocate(0x00, 0xff, 0x00);
+ $col_hi_text = $overview->colorAllocate(0x00, 0xaa, 0x00);
+
+ # Visualize each line
+ foreach $line (@source)
+ {
+ # Replace tabs with spaces to keep consistent with source
+ # code view
+ while ($line =~ /^([^\t]*)(\t)/)
+ {
+ $replacement = " "x($tab_size - ((length($1) - 1) %
+ $tab_size));
+ $line =~ s/^([^\t]*)(\t)/$1$replacement/;
+ }
+
+ # Skip lines which do not follow the <count>:<line>
+ # specification, otherwise $1 = count, $2 = source code
+ if (!($line =~ /(\*?)(\d*):(.*)$/)) { next; }
+ $count = $2;
+ $source = $3;
+
+ # Decide which color pair to use
+
+ # If this line was not instrumented but the one before was,
+ # take the color of that line to widen color areas in
+ # resulting image
+ if (($count eq "") && defined($last_count) &&
+ ($last_count ne ""))
+ {
+ $count = $last_count;
+ }
+
+ if ($count eq "")
+ {
+ # Line was not instrumented
+ $color_text = $col_plain_text;
+ $color_back = $col_plain_back;
+ }
+ elsif ($count == 0)
+ {
+ # Line was instrumented but not executed
+ $color_text = $col_nocov_text;
+ $color_back = $col_nocov_back;
+ }
+ elsif ($1 eq "*")
+ {
+ # Line was highlighted
+ $color_text = $col_hi_text;
+ $color_back = $col_hi_back;
+ }
+ else
+ {
+ # Line was instrumented and executed
+ $color_text = $col_cov_text;
+ $color_back = $col_cov_back;
+ }
+
+ # Write one pixel for each source character
+ $column = 0;
+ foreach (split("", $source))
+ {
+ # Check for width
+ if ($column >= $overview_width) { last; }
+
+ if ($_ eq " ")
+ {
+ # Space
+ $overview->setPixel($column++, $row,
+ $color_back);
+ }
+ else
+ {
+ # Text
+ $overview->setPixel($column++, $row,
+ $color_text);
+ }
+ }
+
+ # Fill rest of line
+ while ($column < $overview_width)
+ {
+ $overview->setPixel($column++, $row, $color_back);
+ }
+
+ $last_count = $2;
+
+ $row++;
+ }
+
+ # Write PNG file
+ open (PNG_HANDLE, ">$filename")
+ or die("ERROR: cannot write png file $filename!\n");
+ binmode(*PNG_HANDLE);
+ print(PNG_HANDLE $overview->png());
+ close(PNG_HANDLE);
+}
+
+sub warn_handler($)
+{
+ my ($msg) = @_;
+
+ warn("$tool_name: $msg");
+}
+
+sub die_handler($)
+{
+ my ($msg) = @_;
+
+ die("$tool_name: $msg");
+}