/* builtins.h generated by make from xoscope.css and xoscope.glade.*/ /* DO NOT EDIT THIS FILE! */ char * xoscope_css = "/* xoscope.css generated by make from xoscope.css.in and xoscope.css.m4.*/ " "/* DO NOT EDIT THIS FILE! */ " "*#top_grid {background-image: none; background-color: black; } " "*#display_box {background-image: none; background-color: black; } " "*#bottom_grid {background-image: none; background-color: black; } " "*#databox {background-image: none; background-color: black; } " "*#databox_aspectframe {color: red; } " "*#databox_hscrollbar {color: white; background-image: none; background-color: #a00000; } " "*#databox_hscrollbar:hover {color: white; background-image: none; background-color: red; } " "*#databox_hscrollbar:active {color: white; background-image: none; background-color: #600000; } " "button.toggle {background-image: none; background-color: black; } " "button.toggle:active {background-image: none; background-color: grey; } " "button.toggle:checked {background-image: none; background-color: #25251b; } " "*#top_grid label {font-family: Liberation Sans; font-size: 16px; } " "*#bottom_grid label {font-family: Liberation Sans; font-size: 16px; } " "*#top_grid label {color: white; } " "*#display_box label {color: white; } " "*#bottom_grid label {color: white; } " "label#sample_rate_label {color: lightgreen; } " "label#samples_per_frame_label {color: lightgreen; } " "label#period_label {color: lightgreen; } " "label#min_max_label {color: lightgreen; } " "label#Ch1_label {color: lightgreen; } " "label#Ch1_scale_label {color: lightgreen; } " "label#Ch1_position_label {color: lightgreen; } " "label#Ch1_source_label {color: lightgreen; } " "label#Ch2_label {color: cyan; } " "label#Ch2_scale_label {color: cyan; } " "label#Ch2_position_label {color: cyan; } " "label#Ch2_source_label {color: cyan; } " "label#Ch3_label {color: yellow; } " "label#Ch3_scale_label {color: yellow; } " "label#Ch3_position_label {color: yellow; } " "label#Ch3_source_label {color: yellow; } " "label#Ch4_label {color: orange; } " "label#Ch4_scale_label {color: orange; } " "label#Ch4_position_label {color: orange; } " "label#Ch4_source_label {color: orange; } " "label#Ch5_label {color: violet; } " "label#Ch5_scale_label {color: violet; } " "label#Ch5_position_label {color: violet; } " "label#Ch5_source_label {color: violet; } " "label#Ch6_label {color: #6688ff; } " "label#Ch6_scale_label {color: #6688ff; } " "label#Ch6_position_label {color: #6688ff; } " "label#Ch6_source_label {color: #6688ff; } " "label#Ch7_label {color: red; } " "label#Ch7_scale_label {color: red; } " "label#Ch7_position_label {color: red; } " "label#Ch7_source_label {color: red; } " "label#Ch8_label {color: white; } " "label#Ch8_scale_label {color: white; } " "label#Ch8_position_label {color: white; } " "label#Ch8_source_label {color: white; } " "label#tab_help_label {color: lightgreen; } " "label#scale_help_label {color: lightgreen; } " "label#position_help_label {color: lightgreen; } " "label#signal_help_label {color: lightgreen; } " "label#memory_help_label {color: lightgreen; 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" True" " " " " " " " " " " " True" " False" " External command..." 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" False" " Mem F" " True" " " " " " " " " " " " " " True" " False" " Mem G" " True" " " " " " " " " " " " " " True" " False" " Mem H" " True" " " " " " " " " " " " " " True" " False" " Mem I" " True" " " " " " " " " " " " " " True" " False" " Mem J" " True" " " " " " " " " " " " " " True" " False" " Mem k" " True" " " " " " " " " " " " " " True" " False" " Mem L" " True" " " " " " " " " " " " " " True" " False" " Mem M" " True" " " " " " " " " " " " " " True" " False" " Mem N" " True" " " " " " " " " " " " " " True" " False" " Mem O" " True" " " " " " " " " " " " " " True" " False" " Mem P" " True" " " " " " " " " " " " " " True" " False" " Mem Q" " True" " " " " " " " " " " " " " True" " False" " Mem R" " True" " " " " " " " " " " " " " True" " False" " Mem S" " True" " " " " " " " " " " " " " True" " False" " Mem T" " True" " " " " " " " " " " " " " True" " False" " Mem U" " True" " " " " " " " " " " " " " True" " False" " Mem V" " True" " " " " " " " " " " " " " True" " False" " Mem 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" " " " " True" " True" " True" " end" " True" " 3" " " " " " " " " " True" " False" " vertical" " True" " " " " " True" " False" " Channel 6" " " " " " 0" " 0" " " " " " " " " " True" " False" " Ch6_scale" " " " " " 0" " 1" " " " " " " " " " True" " False" " Ch6_position" " " " " " 0" " 2" " " " " " " " " " True" " False" " Ch6_source" " " " " " 0" " 3" " " " " " " " " " " " " " " " " " True" " False" " " " " " " " " " 0" " 1" " " " " " " " " " False" " True" " 2" " " " " " " " " " 0" " 2" " " " " " " " " " " " " " True" " " " " " " " " " " " " " " " " " True" " " " " " " " " " " " " " " " " " False" " Xoscope - external command" " True" " xoscope" " dialog" " " " " " " " True" " False" " True" " True" " vertical" " 2" " " " " " True" " False" " end" " " " " " Run " " True" " True" " True" " True" " " " " " True" " True" " 0" " " " " " " " " " Cancel " " True" " True" " True" " " " " " True" " True" " 1" " " " " " " " " " False" " False" " 0" " " " " " " " " " " " True" " False" " vertical" " 2" " " " " " True" " False" " start" " 10" " True" " True" " " "External command and arguments:" "" " " " " " 0" " 0" " " " " " " " " " True" " True" " 10" " 10" " True" " True" " " " " " 0" " 1" " " " " " " " " " False" " True" " 1" " " " " " " " " " " " extcom_run" " extcom_cancel" " " " " " " " " " False" " True" " xoscope" " dialog" " north-east" " True" " " " " " " " " " True" " False" " 2" " 2" " 2" " 2" " False" " False" " vertical" " 2" " " " " " 650" " 450" " True" " True" " True" " True" " in" " " " " " True" " True" " True" " True" " False" " False" " help_buffer" " True" " " " " " " " " " 0" " 0" " " " " " " " " " close" " True" " True" " True" " True" " " " " " " " 0" " 1" " " " " " " " " " " " " " False" " Xoscope - perl function" " True" " dialog" " " " " " " " False" " vertical" " 2" " " " " " False" " end" " " " " " Run " " True" " True" " True" " True" " " " " " True" " True" " 0" " " " " " " " " " Help " " True" " True" " True" " " " " " True" " True" " 1" " " " " " " " " " Cancel " " True" " True" " True" " " " " " True" " True" " 2" " " " " " " " " " False" " False" " 0" " " " " " " " " " " " True" " False" " vertical" " 2" " " " " " True" " False" " start" " True" " True" " " "Perl function:" "" " " " " " 0" " 0" " " " " " " " " " True" " False" " True" " " " $ch1 + $ch2" " abs($ch1)" " $ch1 - $ch1[0]" " $ch1 > $ch2 ? $ch1 : $ch2" " $t / (44100/2/250) % 2 ? 64 : -64" " sin($t * $pi / (44100/2/250)) * 64" " cos($t * $pi / (44100/2/250)) * 64" " " " " " " " False" " $ch1 + $ch2" " True" " " " " " " " " " 0" " 1" " " " " " " " " " False" " True" " 1" " " " " " " " " " " " perl_run" " perl_help" " perl_cancel" " " " " "" ; char * operl_program = "\n" "# Copyright (C) 1996 - 2001 Tim Witham \n" "# Copyright (C) 2015 Brent Baccala \n" "\n" "# (see the files README and COPYING for more details)\n" "\n" "# xoscope external math filter command example in perl\n" "\n" "# !!! Please see bottom of this file for instructions and examples !!!\n" "\n" "$| = 1; # unbuffer stdout\n" "$0 =~ s!.*/!!; # reduce to program basename\n" "$func = $ENV{FUNC}; # get function to run from environment\n" "$samples = $ARGV[1] || 640; # assume 640 total samples per screen\n" "$func =~ s/\\#.*$//; # toss comments\n" "$func =~ s/^\\s*(\\$0\\s*=)?\\s*//; # and assumed leading/trailing stuff, if any\n" "$func =~ s/\\s*;*\\s*$//;\n" "die \"usage: $0 'perl math function of \\$t, \\$ch1 and \\$ch2' [sample length]\\n\"\n" " unless $func; # oops\n" "$func = \"\\$out = $func;\"; # '$out=' and ';' are implied around function\n" "\n" "open(IN, '<&3') # open non-standard input for reading\n" " || die \"$0: Can't read input: $!\\n\";\n" "open(OUT, '>-') # and stdout for writing\n" " || die \"$0: Can't write stdout: $!\\n\";\n" "\n" "$pi = 3.14159265359; # define pi for user's convenience\n" "$t = 0; # sample position number (time)\n" "for (1..$samples) { # initialize sample memory \"shift registers\"\n" " push(@ch1, 0); # channel 1 (left)\n" " push(@ch2, 0); # channel 2 (right)\n" " push(@out, 0); # output back to software channel\n" "}\n" "\n" "# For efficiency, we now dynamically build a while loop around the\n" "# user's function then evaluate (compile and run) it once.\n" "\n" "# begin of loop: how to read the samples (two shorts) from stdin:\n" "$begin = '\n" "while(1) {\n" " sysread(IN, $buff, 2) || exit;\n" " $ch1 = unpack(\\'s\\', $buff);\n" " sysread(IN, $buff, 2) || exit;\n" " $ch2 = unpack(\\'s\\', $buff);\n" "\n" "';\n" "\n" "# end: how to increment time, remember the samples, and write result to stdout:\n" "$end = '\n" "\n" " $t = 0 if ++$t >= $samples;';\n" "\n" "# sample history is expensive, so we only remember those the function needs:\n" "$end .= '\n" " pop(@ch1); unshift(@ch1, $ch1);' if $func =~ /\\$ch1\\[/;\n" "$end .= '\n" " pop(@ch2); unshift(@ch2, $ch2);' if $func =~ /\\$ch2\\[/;\n" "$end .= '\n" " pop(@out); unshift(@out, $out);' if $func =~ /\\$out\\[/;\n" "\n" "$end .= '\n" " syswrite(OUT, pack(\\'s\\', $out), 2) || exit;\n" "}\n" "';\n" "\n" "# now put the loop around the user's function\n" "eval $begin.$func.$end; # and finally run the loop forever\n" "warn \"$@\\n\" if $@; # show any user syntax errors on stderr\n" "\n" "__END__\n" "{}\n" ; char * operl_help_text = "\n" " Arbitrary signal math with Perl functions\n" "\n" "Variables available for your function:\n" "\n" "$ch1 channel 1 input\n" "$ch2 channel 2 input\n" "$out output: '$out = ' is assumed before your function; don't use $out\n" "@ch1 channel 1 \"memory\", $ch1[0] = previous sample, $ch1[1] = one before that\n" "@ch2 channel 2 \"memory\", ... all the way to sample length\n" "@out output \"memory\", $out[0] = previous function output calculation, ...\n" "$t sample number, or \"time\", 0=left edge or trigger point\n" "$pi a constant: 3.14159265359, for your trigonometric convenience\n" "\n" " Example functions\n" "\n" "Functions of channel 1 (would also work for channel 2):\n" "\n" "abs($ch1) # rectify (absolute value)\n" "-$ch1 # negate (invert)\n" "$ch1 - $ch1[0] # integral or rate of change since last sample\n" "$ch1 - $ch1[2] # same but over more time (3 sample periods)\n" "$ch1 + 32 # add a \"DC offset\" of 32 sample units\n" "$t > 43 ? $ch1[43] : 0 # delay by 1 msec @ 44000 S/s = 44th sample\n" "\n" "Functions of both channel 1 and channel 2:\n" "\n" "$ch1 * $ch2 # multiply 1 * 2\n" "$ch1 / ($ch2 || 1) # divide 1 / 2, avoiding divide by 0 error\n" "$ch2 / ($ch1 || 1) # divide 2 / 1\n" "$ch1 > $ch2 ? $ch1 : $ch2 # max(1, 2)\n" "$ch1 < $ch2 ? $ch1 : $ch2 # min(1, 2)\n" "$ch1 + $ch2 # sum, like the oscope builtin\n" "$ch1 - $ch2 # diff, like the oscope builtin\n" "($ch1 + $ch2) / 2 # average, like the oscope builtin\n" "\n" "Time position ($t) functions, independent of channel 1 and 2 inputs:\n" "\n" "$t / 88 % 2 ? 64 : -64 # 250 Hz square wave (88 = 44000 / 2 / 250)\n" "sin($t * $pi / 44) * 64 # 500 Hz sin wave (44 = 44000 / 2 / 500)\n" "cos($t * $pi / 22) * 64 # 1000 Hz cosine wave (22 = 44000 / 2 / 1000)\n" "\n" "Low-pass filter: a difference equation of previous input and output:\n" "\n" "1.899105 * $out[0] - .901531 * $out[1] + .001213 * ($ch1 + $ch1[1] + 2 * $ch1[0])\n" ;