#!/usr/bin/perl

#######################################################################
# LiVES image_overlay plugin, version 2
# Compiled with Builder version 3.2.0
# autogenerated from script by DgMvEcuador|

# rendered plugins should accept:
# <plugin_name> version (return <plugin_name> version <version>)
# <plugin_name> get_define
# <plugin_name> get_capabilities
# <plugin_name> get_description (e.g. "Edge detect|Edge detecting|1|1|")
# <plugin_name> clear (clean up any plugin generated temp files)
# and optionally any of: 
# <plugin_name> get_parameters
# <plugin_name> get_param_window
# <plugin_name> get_onchange
# <plugin_name> onchange_<when> (for any triggers, e.g. onchange_init)
#
# they must accept:
# <plugin_name> process <parameters>

# You should not skip any frames, if a frame is not changed you must do:
# `cp $in $out`
#
# for *non-Perl* plugins, LiVES will call:
# <plugin_name> process [<in2_prefix> [<in_prefix>]] <out_prefix> <out_ext> <start> <end>
#  <width> <height> <img_ext> <fps> [<img2_ext> <start2> <handle2>]  <parameters>
# you should create all output frames $out_prefix%08d$out_ext in numerical 
# from start to end inclusive,
# using $in_prefix%08d$in_ext and $in2_prefix%08d$img2_ext as applicable.
# in / out images are in current dir, In2 images can be located in ../handle2 and numbered from 
# Each time calling sig_progress (see smogrify) - writes current frame number to 
# <dir>/.status
# and checking for pause (test for a file of that name in current dir - if present just sleep until deleted)
#
# Any errors - 
# write "error|msg1|msg2|msg3|" to .status
# msgn must not contain "\n", but can be omitted

# after processing, you should leave no gaps in out frames, you should not resize
# or change the palette from RGB24 (LiVES will check and autocorrect this soon)

# Also you must implement your own: &sig_error and &sig_progress


#######################################################################

use POSIX;
setlocale(LC_NUMERIC, "C");

my $command = $ARGV[0];

if ($command eq "get_capabilities") {
    # capabilities is a bitmap field
    # 0x0001 == slow (hint to GUI)
    # 0x0002 == may resize (all frames to  x )
    # 0x0004 == block mode generator
    # 0x8000 == reserved
    print "32768\n";
    exit 0;
}

if ($command eq "version") {
    print "image_overlay version 2 : builder version 3.2.0\n";
    exit 0;
}

if ($command eq "get_define") {
    print "|1.7\n";
    exit 0;
}

if ($command eq "get_description") {
    #format here is "Menu entry|Action description|min_frames|number_of_in_channels|"
    # min_frames == -1 indicates a special "no processing" effect. This allows more
    #general parameter windows which are not really effects (e.g. frame_calculator)
    print "Image overlay|Overlaying an image onto video|1|1|\n";
    exit 0;
}


if ($command eq "get_parameters") {
    # "name|label|type|other fields..."
    # eg. print "radius|_radius|num0|1|1|100|";
    # types can be numx, colRGB24, bool, string or string_list
    print "iposX|Init pos_X:|num0|0|-10000|10000|\n";
    print "iposY|Init pos_Y:|num0|0|-10000|10000|\n";
    print "isizeX|_Init Size X:|num0|0|0|1000000|\n";
    print "isizeY|_Init Size Y:|num0|0|0|1000000|\n";
    print "ns1|Use _Natural Size|bool|0|\n";
    print "a1|Init _Alpha:|num0|100|0|100|\n";
    print "img|_Image|string||80|\n";
    print "anim|Active _animation|bool|0|\n";
    print "eposX|End pos_X:|num0|0|-10000|10000|\n";
    print "eposY|End pos_Y:|num0|0|-10000|10000|\n";
    print "esizeX|_End Size X:|num0|0|0|1000000|\n";
    print "esizeY|_End Size Y:|num0|0|0|1000000|\n";
    print "ns2|Use _Natural Size|bool|0|\n";
    print "a1|End _Alpha:|num0|100|0|100|\n";
    print "aspect|Keep image aspect _ratio|bool|1|\n";
    exit 0;
}

if ($command eq "get_param_window") {
    print "layout|p0|p1||\n";
    print "layout|p2|p3||\n";
    print "layout|p4||\n";
    print "layout|p5|\n";
    print "layout|p6||\n";
    print "layout|p14||\n";
    print "layout|hseparator||\n";
    print "layout|p7||\n";
    print "layout|p8|p9||\n";
    print "layout|p10|p11||\n";
    print "special|fileread|6||\n";
    exit 0;
}

if ($command eq "get_onchange") {
    print "init|\n";
    exit 0;
}

#######################################################

if ($command eq "process") {
    # in case of error, you should do:
    # &sig_error("msg1", "msg2", "msg3", "msg4"); [ msg's are optional, but must not
    # contain newlines (\n) ]

##### check requirements first #######
    if (&location("composite") eq "") {
      &sig_error("You must install 'composite' before you can use this effect.");
      exit 1;
    }
    if (&location("convert") eq "") {
      &sig_error("You must install 'convert' before you can use this effect.");
      exit 1;
    }

###### handle parameters #############
# autogenerated from get_parameters

    unless (defined($ARGV[1])) {
      $p0 = 0;
    }
    else {
      $p0 = $ARGV[1];
    }
    unless (defined($ARGV[2])) {
      $p1 = 0;
    }
    else {
      $p1 = $ARGV[2];
    }
    unless (defined($ARGV[3])) {
      $p2 = 0;
    }
    else {
      $p2 = $ARGV[3];
    }
    unless (defined($ARGV[4])) {
      $p3 = 0;
    }
    else {
      $p3 = $ARGV[4];
    }
    unless (defined($ARGV[5])) {
      $p4 = 0;
    }
    else {
      $p4 = $ARGV[5];
    }
    unless (defined($ARGV[6])) {
      $p5 = 100;
    }
    else {
      $p5 = $ARGV[6];
    }
    unless (defined($ARGV[7])) {
      $p6 = "";
    }
    else {
      $p6 = $ARGV[7];
    }
    unless (defined($ARGV[8])) {
      $p7 = 0;
    }
    else {
      $p7 = $ARGV[8];
    }
    unless (defined($ARGV[9])) {
      $p8 = 0;
    }
    else {
      $p8 = $ARGV[9];
    }
    unless (defined($ARGV[10])) {
      $p9 = 0;
    }
    else {
      $p9 = $ARGV[10];
    }
    unless (defined($ARGV[11])) {
      $p10 = 0;
    }
    else {
      $p10 = $ARGV[11];
    }
    unless (defined($ARGV[12])) {
      $p11 = 0;
    }
    else {
      $p11 = $ARGV[12];
    }
    unless (defined($ARGV[13])) {
      $p12 = 0;
    }
    else {
      $p12 = $ARGV[13];
    }
    unless (defined($ARGV[14])) {
      $p13 = 100;
    }
    else {
      $p13 = $ARGV[14];
    }
    unless (defined($ARGV[15])) {
      $p14 = 1;
    }
    else {
      $p14 = $ARGV[15];
    }
    $! = 0;
    if ($p0 >= 0) {
        $p0 = int(POSIX::strtod($p0) * 1 + .5) / 1;
    } else {
        $p0 = int(POSIX::strtod($p0) * 1 - .5) / 1;
    }
    if ($p0 < -10000) {
       &sig_error("iposX must be >= -10000");
       exit 1;
    }
    if ($p0 > 10000) {
       &sig_error("iposX must be <= 10000");
       exit 1;
    }
    $! = 0;
    if ($p1 >= 0) {
        $p1 = int(POSIX::strtod($p1) * 1 + .5) / 1;
    } else {
        $p1 = int(POSIX::strtod($p1) * 1 - .5) / 1;
    }
    if ($p1 < -10000) {
       &sig_error("iposY must be >= -10000");
       exit 1;
    }
    if ($p1 > 10000) {
       &sig_error("iposY must be <= 10000");
       exit 1;
    }
    $! = 0;
    if ($p2 >= 0) {
        $p2 = int(POSIX::strtod($p2) * 1 + .5) / 1;
    } else {
        $p2 = int(POSIX::strtod($p2) * 1 - .5) / 1;
    }
    if ($p2 < 0) {
       &sig_error("isizeX must be >= 0");
       exit 1;
    }
    if ($p2 > 1000000) {
       &sig_error("isizeX must be <= 1000000");
       exit 1;
    }
    $! = 0;
    if ($p3 >= 0) {
        $p3 = int(POSIX::strtod($p3) * 1 + .5) / 1;
    } else {
        $p3 = int(POSIX::strtod($p3) * 1 - .5) / 1;
    }
    if ($p3 < 0) {
       &sig_error("isizeY must be >= 0");
       exit 1;
    }
    if ($p3 > 1000000) {
       &sig_error("isizeY must be <= 1000000");
       exit 1;
    }
    $p4 = ~(~$p4);
    $! = 0;
    if ($p5 >= 0) {
        $p5 = int(POSIX::strtod($p5) * 1 + .5) / 1;
    } else {
        $p5 = int(POSIX::strtod($p5) * 1 - .5) / 1;
    }
    if ($p5 < 0) {
       &sig_error("a1 must be >= 0");
       exit 1;
    }
    if ($p5 > 100) {
       &sig_error("a1 must be <= 100");
       exit 1;
    }
    $p7 = ~(~$p7);
    $! = 0;
    if ($p8 >= 0) {
        $p8 = int(POSIX::strtod($p8) * 1 + .5) / 1;
    } else {
        $p8 = int(POSIX::strtod($p8) * 1 - .5) / 1;
    }
    if ($p8 < -10000) {
       &sig_error("eposX must be >= -10000");
       exit 1;
    }
    if ($p8 > 10000) {
       &sig_error("eposX must be <= 10000");
       exit 1;
    }
    $! = 0;
    if ($p9 >= 0) {
        $p9 = int(POSIX::strtod($p9) * 1 + .5) / 1;
    } else {
        $p9 = int(POSIX::strtod($p9) * 1 - .5) / 1;
    }
    if ($p9 < -10000) {
       &sig_error("eposY must be >= -10000");
       exit 1;
    }
    if ($p9 > 10000) {
       &sig_error("eposY must be <= 10000");
       exit 1;
    }
    $! = 0;
    if ($p10 >= 0) {
        $p10 = int(POSIX::strtod($p10) * 1 + .5) / 1;
    } else {
        $p10 = int(POSIX::strtod($p10) * 1 - .5) / 1;
    }
    if ($p10 < 0) {
       &sig_error("esizeX must be >= 0");
       exit 1;
    }
    if ($p10 > 1000000) {
       &sig_error("esizeX must be <= 1000000");
       exit 1;
    }
    $! = 0;
    if ($p11 >= 0) {
        $p11 = int(POSIX::strtod($p11) * 1 + .5) / 1;
    } else {
        $p11 = int(POSIX::strtod($p11) * 1 - .5) / 1;
    }
    if ($p11 < 0) {
       &sig_error("esizeY must be >= 0");
       exit 1;
    }
    if ($p11 > 1000000) {
       &sig_error("esizeY must be <= 1000000");
       exit 1;
    }
    $p12 = ~(~$p12);
    $! = 0;
    if ($p13 >= 0) {
        $p13 = int(POSIX::strtod($p13) * 1 + .5) / 1;
    } else {
        $p13 = int(POSIX::strtod($p13) * 1 - .5) / 1;
    }
    if ($p13 < 0) {
       &sig_error("a1 must be >= 0");
       exit 1;
    }
    if ($p13 > 100) {
       &sig_error("a1 must be <= 100");
       exit 1;
    }
    $p14 = ~(~$p14);
    if ($img_ext eq ".png") {
        $img_prefix = "PNG32:";
    } else {
        $img_prefix = "";
    }

    if ($out_ext eq ".png") {
        $out_prefix = "PNG32:";
    } else {
        $out_prefix="";
    }

    $actualX=$p0;
    $actualY=$p1;
    $actualSizeX=$p2;
    $actualSizeY=$p3;
    
    $ns1=$p4;
    $alfa1=$p5;
    
    $img=$p6;
    $ani=$p7;
    
    $finalX=$p8;
    $finalY=$p9;
    $finalSizeX=$p10;
    $finalSizeY=$p11;
    
    $ns2=$p12;
    $alfa2=$p13;
    
    if ($p14) {
    	$asp="";
    }
    else {
    	$asp="!";
    }
    
    
    if ( $ns1 )
    {
    	&get_image_size($img);
    	$actualSizeX=$hsize;
    	$actualSizeY=$vsize;
    }
    
    if ( $ns2 )
    {
    	&get_image_size($img);
    	$finalSizeX=$hsize;
    	$finalSizeY=$vsize;
    }
    
    if ( $ani )
    {
    	$pasos=$end-$start+1;
    	$deltaX=($finalX-$actualX)/$pasos;
    	$deltaY=($finalY-$actualY)/$pasos;
    	$deltaSizeX=($finalSizeX-$actualSizeX)/$pasos;
    	$deltaSizeY=($finalSizeY-$actualSizeY)/$pasos;
    	$deltaAlfa=($alfa2-$alfa1)/$pasos;
    } else {
    	$deltaX=0;
    	$deltaY=0;
    	$deltaSizeX=0;
    	$deltaSizeY=0;
    	$deltaAlfa=0;
    }
    

    if ($start == 0) {$start = 1;}


################# loop through frames #################
    for ($frame = $start; $frame <= $end; $frame++) {
        # sig progress will update the progress bar from $start->$end
        $name = &mkname($frame);
        $in = "$name$img_ext";

        if (!defined($end) || $end == 0) {
            print STDERR "WARNING: generator plugin did not set $end !";
            &sig_error("Generator plugin did not set $end.");
        }
        $out = "$name$out_ext";

        # wait for front end to create 
        while (! -s $in) {
            sleep 1;
        }

        `flock $in true`;
##################### the all-important bit #######################

        system("$composite_command -alpha on -dissolve $alfa1 -geometry $actualSizeX$asp"."x"."$actualSizeY$asp"."+"."$actualX"."+"."$actualY \"$img\" \"$img_prefix$in\" \"$out_prefix$out\"");
        if ( $ani )
        {
        	$actualX+=$deltaX;
        	$actualY+=$deltaY;
        	$actualSizeX+=$deltaSizeX;
        	$actualSizeY+=$deltaSizeY;
        	$alfa1+=$deltaAlfa;
        }

###################################################################
        for (my $i = 0; $i < 5; $i++) {
            if (! -s $out) {
                sleep 1;
            }
        }

        if (! -s $out) {
            print STDERR "Warning: effect plugin image_overlay skipped frame $frame !\n";
            return 1;
        }

        &sig_progress($frame);

        }
    return 1;
}



########## Post loop code ############
if ($command eq "clear") {
    exit 0;
}

########## Triggers ############

if ($command eq "onchange_init") {
    $p0 = @ARGV[1];
    $p0_min = @ARGV[2];
    $p0_max = @ARGV[3];
    $p1 = @ARGV[4];
    $p1_min = @ARGV[5];
    $p1_max = @ARGV[6];
    $p2 = @ARGV[7];
    $p2_min = @ARGV[8];
    $p2_max = @ARGV[9];
    $p3 = @ARGV[10];
    $p3_min = @ARGV[11];
    $p3_max = @ARGV[12];
    $p4 = @ARGV[13];
    $p5 = @ARGV[14];
    $p5_min = @ARGV[15];
    $p5_max = @ARGV[16];
    $p6 = @ARGV[17];
    $p7 = @ARGV[18];
    $p8 = @ARGV[19];
    $p8_min = @ARGV[20];
    $p8_max = @ARGV[21];
    $p9 = @ARGV[22];
    $p9_min = @ARGV[23];
    $p9_max = @ARGV[24];
    $p10 = @ARGV[25];
    $p10_min = @ARGV[26];
    $p10_max = @ARGV[27];
    $p11 = @ARGV[28];
    $p11_min = @ARGV[29];
    $p11_max = @ARGV[30];
    $p12 = @ARGV[31];
    $p13 = @ARGV[32];
    $p13_min = @ARGV[33];
    $p13_max = @ARGV[34];
    $p14 = @ARGV[35];
    $width = @ARGV[36];
    $height = @ARGV[37];
    $start = @ARGV[38];
    $end = @ARGV[39];
    $last = @ARGV[40];
    $length = $end - $start + 1;

    $p0_max=$p8_max=$width;
    $p1_max=$p9_max=$height;
    $p6 =~ s/\"/\\\"/g;

    print "$p0 $p0_min $p0_max $p1 $p1_min $p1_max $p2 $p2_min $p2_max $p3 $p3_min $p3_max $p4 $p5 $p5_min $p5_max \"$p6\" $p7 $p8 $p8_min $p8_max $p9 $p9_min $p9_max $p10 $p10_min $p10_max $p11 $p11_min $p11_max $p12 $p13 $p13_min $p13_max $p14 ";
    exit 0;
}
