package Imager;
-
-
use strict;
use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS %formats $DEBUG %filters %DSOs $ERRSTR $fontstate %OPCODES $I2P $FORMATGUESS);
use IO::File;
DSO_close
DSO_funclist
DSO_call
-
+
load_plugin
unload_plugin
-
+
i_list_formats
i_has_format
-
+
i_color_new
i_color_set
i_color_info
-
+
i_img_empty
i_img_empty_ch
i_img_exorcise
i_box
i_box_filled
i_arc
-
+ i_circle_aa
+
i_bezier_multi
i_poly_aa
i_scale_nn
i_haar
i_count_colors
-
-
+
i_gaussian
i_conv
-
+
i_convert
i_map
-
+
i_img_diff
i_init_fonts
i_t1_text
i_t1_bbox
-
i_tt_set_aa
i_tt_cp
i_tt_text
i_tt_bbox
- i_readjpeg
- i_writejpeg
-
i_readjpeg_wiol
i_writejpeg_wiol
i_writetiff_wiol
i_writetiff_wiol_faxable
- i_readpng
- i_writepng
+ i_readpng_wiol
+ i_writepng_wiol
i_readgif
i_readgif_callback
i_writegif_callback
i_readpnm_wiol
- i_writeppm
+ i_writeppm_wiol
- i_readraw
- i_writeraw
+ i_readraw_wiol
+ i_writeraw_wiol
i_contrast
i_hardinvert
i_postlevels
i_mosaic
i_watermark
-
+
malloc_state
list_formats
-
+
i_gifquant
newfont
newcolour
NC
NF
-
);
-
-
@EXPORT=qw(
init_log
i_list_formats
unload_plugin
)]);
-
BEGIN {
require Exporter;
require DynaLoader;
- $VERSION = '0.38pre9';
+ $VERSION = '0.39pre1';
@ISA = qw(Exporter DynaLoader);
bootstrap Imager $VERSION;
}
BEGIN {
i_init_fonts(); # Initialize font engines
+ Imager::Font::__init();
for(i_list_formats()) { $formats{$_}++; }
if ($formats{'t1'}) {
i_t1_set_aa(1);
}
- if (!$formats{'t1'} and !$formats{'tt'}) {
+ if (!$formats{'t1'} and !$formats{'tt'}
+ && !$formats{'ft2'} && !$formats{'w32'}) {
$fontstate='no font support';
}
defaults => { },
callsub => sub { my %hsh=@_; i_nearest_color($hsh{image}, $hsh{xo}, $hsh{yo}, $hsh{colors}, $hsh{dist}); }
};
+ $filters{gaussian} = {
+ callseq => [ 'image', 'stddev' ],
+ defaults => { },
+ callsub => sub { my %hsh = @_; i_gaussian($hsh{image}, $hsh{stddev}); },
+ };
+ $filters{mosaic} =
+ {
+ callseq => [ qw(image size) ],
+ defaults => { size => 20 },
+ callsub => sub { my %hsh = @_; i_mosaic($hsh{image}, $hsh{size}) },
+ };
+ $filters{bumpmap} =
+ {
+ callseq => [ qw(image bump elevation lightx lighty st) ],
+ defaults => { elevation=>0, st=> 2 },
+ callsub => sub {
+ my %hsh = @_;
+ i_bumpmap($hsh{image}, $hsh{bump}{IMG}, $hsh{elevation},
+ $hsh{lightx}, $hsh{lighty}, $hsh{st});
+ },
+ };
+ $filters{postlevels} =
+ {
+ callseq => [ qw(image levels) ],
+ defaults => { levels => 10 },
+ callsub => sub { my %hsh = @_; i_postlevels($hsh{image}, $hsh{levels}); },
+ };
+ $filters{watermark} =
+ {
+ callseq => [ qw(image wmark tx ty pixdiff) ],
+ defaults => { pixdiff=>10, tx=>0, ty=>0 },
+ callsub =>
+ sub {
+ my %hsh = @_;
+ i_watermark($hsh{image}, $hsh{wmark}{IMG}, $hsh{tx}, $hsh{ty},
+ $hsh{pixdiff});
+ },
+ };
$FORMATGUESS=\&def_guess_type;
}
return join(": ", map $_->[0], i_errors());
}
-
#
# Methods to be called on objects.
#
return $self;
}
-
# Copy an entire image with no changes
# - if an image has magic the copy of it will not be magical
sub img_set {
my $self=shift;
- my %hsh=(xsize=>100,ysize=>100,channels=>3,@_);
+ my %hsh=(xsize=>100, ysize=>100, channels=>3, bits=>8, type=>'direct', @_);
if (defined($self->{IMG})) {
- i_img_destroy($self->{IMG});
+ # let IIM_DESTROY destroy it, it's possible this image is
+ # referenced from a virtual image (like masked)
+ #i_img_destroy($self->{IMG});
undef($self->{IMG});
}
- $self->{IMG}=Imager::ImgRaw::new($hsh{'xsize'},$hsh{'ysize'},$hsh{'channels'});
+ if ($hsh{type} eq 'paletted' || $hsh{type} eq 'pseudo') {
+ $self->{IMG} = i_img_pal_new($hsh{xsize}, $hsh{ysize}, $hsh{channels},
+ $hsh{maxcolors} || 256);
+ }
+ elsif ($hsh{bits} == 16) {
+ $self->{IMG} = i_img_16_new($hsh{xsize}, $hsh{ysize}, $hsh{channels});
+ }
+ else {
+ $self->{IMG}=Imager::ImgRaw::new($hsh{'xsize'}, $hsh{'ysize'},
+ $hsh{'channels'});
+ }
+}
+
+# created a masked version of the current image
+sub masked {
+ my $self = shift;
+
+ $self or return undef;
+ my %opts = (left => 0,
+ top => 0,
+ right => $self->getwidth,
+ bottom => $self->getheight,
+ @_);
+ my $mask = $opts{mask} ? $opts{mask}{IMG} : undef;
+
+ my $result = Imager->new;
+ $result->{IMG} = i_img_masked_new($self->{IMG}, $mask, $opts{left},
+ $opts{top}, $opts{right} - $opts{left},
+ $opts{bottom} - $opts{top});
+ # keep references to the mask and base images so they don't
+ # disappear on us
+ $result->{DEPENDS} = [ $self->{IMG}, $mask ];
+
+ $result;
+}
+
+# convert an RGB image into a paletted image
+sub to_paletted {
+ my $self = shift;
+ my $opts;
+ if (@_ != 1 && !ref $_[0]) {
+ $opts = { @_ };
+ }
+ else {
+ $opts = shift;
+ }
+
+ my $result = Imager->new;
+ $result->{IMG} = i_img_to_pal($self->{IMG}, $opts);
+
+ #print "Type ", i_img_type($result->{IMG}), "\n";
+
+ $result->{IMG} or undef $result;
+
+ return $result;
+}
+
+# convert a paletted (or any image) to an 8-bit/channel RGB images
+sub to_rgb8 {
+ my $self = shift;
+ my $result;
+
+ if ($self->{IMG}) {
+ $result = Imager->new;
+ $result->{IMG} = i_img_to_rgb($self->{IMG})
+ or undef $result;
+ }
+
+ return $result;
+}
+
+sub addcolors {
+ my $self = shift;
+ my %opts = (colors=>[], @_);
+
+ @{$opts{colors}} or return undef;
+
+ $self->{IMG} and i_addcolors($self->{IMG}, @{$opts{colors}});
+}
+
+sub setcolors {
+ my $self = shift;
+ my %opts = (start=>0, colors=>[], @_);
+ @{$opts{colors}} or return undef;
+
+ $self->{IMG} and i_setcolors($self->{IMG}, $opts{start}, @{$opts{colors}});
+}
+
+sub getcolors {
+ my $self = shift;
+ my %opts = @_;
+ if (!exists $opts{start} && !exists $opts{count}) {
+ # get them all
+ $opts{start} = 0;
+ $opts{count} = $self->colorcount;
+ }
+ elsif (!exists $opts{count}) {
+ $opts{count} = 1;
+ }
+ elsif (!exists $opts{start}) {
+ $opts{start} = 0;
+ }
+
+ $self->{IMG} and
+ return i_getcolors($self->{IMG}, $opts{start}, $opts{count});
+}
+
+sub colorcount {
+ i_colorcount($_[0]{IMG});
+}
+
+sub maxcolors {
+ i_maxcolors($_[0]{IMG});
+}
+
+sub findcolor {
+ my $self = shift;
+ my %opts = @_;
+ $opts{color} or return undef;
+
+ $self->{IMG} and i_findcolor($self->{IMG}, $opts{color});
+}
+
+sub bits {
+ my $self = shift;
+ $self->{IMG} and i_img_bits($self->{IMG});
+}
+
+sub type {
+ my $self = shift;
+ if ($self->{IMG}) {
+ return i_img_type($self->{IMG}) ? "paletted" : "direct";
+ }
+}
+
+sub virtual {
+ my $self = shift;
+ $self->{IMG} and i_img_virtual($self->{IMG});
+}
+
+sub tags {
+ my ($self, %opts) = @_;
+
+ $self->{IMG} or return;
+
+ if (defined $opts{name}) {
+ my @result;
+ my $start = 0;
+ my $found;
+ while (defined($found = i_tags_find($self->{IMG}, $opts{name}, $start))) {
+ push @result, (i_tags_get($self->{IMG}, $found))[1];
+ $start = $found+1;
+ }
+ return wantarray ? @result : $result[0];
+ }
+ elsif (defined $opts{code}) {
+ my @result;
+ my $start = 0;
+ my $found;
+ while (defined($found = i_tags_findn($self->{IMG}, $opts{code}, $start))) {
+ push @result, (i_tags_get($self->{IMG}, $found))[1];
+ $start = $found+1;
+ }
+ return @result;
+ }
+ else {
+ if (wantarray) {
+ return map { [ i_tags_get($self->{IMG}, $_) ] } 0.. i_tags_count($self->{IMG})-1;
+ }
+ else {
+ return i_tags_count($self->{IMG});
+ }
+ }
+}
+
+sub addtag {
+ my $self = shift;
+ my %opts = @_;
+
+ return -1 unless $self->{IMG};
+ if ($opts{name}) {
+ if (defined $opts{value}) {
+ if ($opts{value} =~ /^\d+$/) {
+ # add as a number
+ return i_tags_addn($self->{IMG}, $opts{name}, 0, $opts{value});
+ }
+ else {
+ return i_tags_add($self->{IMG}, $opts{name}, 0, $opts{value}, 0);
+ }
+ }
+ elsif (defined $opts{data}) {
+ # force addition as a string
+ return i_tags_add($self->{IMG}, $opts{name}, 0, $opts{data}, 0);
+ }
+ else {
+ $self->{ERRSTR} = "No value supplied";
+ return undef;
+ }
+ }
+ elsif ($opts{code}) {
+ if (defined $opts{value}) {
+ if ($opts{value} =~ /^\d+$/) {
+ # add as a number
+ return i_tags_addn($self->{IMG}, $opts{code}, 0, $opts{value});
+ }
+ else {
+ return i_tags_add($self->{IMG}, $opts{code}, 0, $opts{value}, 0);
+ }
+ }
+ elsif (defined $opts{data}) {
+ # force addition as a string
+ return i_tags_add($self->{IMG}, $opts{code}, 0, $opts{data}, 0);
+ }
+ else {
+ $self->{ERRSTR} = "No value supplied";
+ return undef;
+ }
+ }
+ else {
+ return undef;
+ }
+}
+
+sub deltag {
+ my $self = shift;
+ my %opts = @_;
+
+ return 0 unless $self->{IMG};
+
+ if (defined $opts{index}) {
+ return i_tags_delete($self->{IMG}, $opts{index});
+ }
+ elsif (defined $opts{name}) {
+ return i_tags_delbyname($self->{IMG}, $opts{name});
+ }
+ elsif (defined $opts{code}) {
+ return i_tags_delbycode($self->{IMG}, $opts{code});
+ }
+ else {
+ $self->{ERRSTR} = "Need to supply index, name, or code parameter";
+ return 0;
+ }
}
# Read an image from file
my ($fh, $fd, $IO);
if (defined($self->{IMG})) {
- i_img_destroy($self->{IMG});
+ # let IIM_DESTROY do the destruction, since the image may be
+ # referenced from elsewhere
+ #i_img_destroy($self->{IMG});
undef($self->{IMG});
}
- if (!$input{fd} and !$input{file} and !$input{data}) { $self->{ERRSTR}='no file, fd or data parameter'; return undef; }
+ if (!$input{fd} and !$input{file} and !$input{data}) {
+ $self->{ERRSTR}='no file, fd or data parameter'; return undef;
+ }
if ($input{file}) {
$fh = new IO::File($input{file},"r");
- if (!defined $fh) { $self->{ERRSTR}='Could not open file'; return undef; }
+ if (!defined $fh) {
+ $self->{ERRSTR}='Could not open file'; return undef;
+ }
binmode($fh);
$fd = $fh->fileno();
}
- if ($input{fd}) { $fd=$input{fd} };
+ if ($input{fd}) {
+ $fd=$input{fd};
+ }
# FIXME: Find the format here if not specified
# yes the code isn't here yet - next week maybe?
+ # Next week? Are you high or something? That comment
+ # has been there for half a year dude.
+ # Look, i just work here, ok?
- if (!$input{type} and $input{file}) { $input{type}=$FORMATGUESS->($input{file}); }
- if (!$formats{$input{type}}) { $self->{ERRSTR}='format not supported'; return undef; }
+ if (!$input{type} and $input{file}) {
+ $input{type}=$FORMATGUESS->($input{file});
+ }
+ if (!$formats{$input{type}}) {
+ $self->{ERRSTR}='format not supported'; return undef;
+ }
- my %iolready=(jpeg=>1, tiff=>1, pnm=>1);
+ my %iolready=(jpeg=>1, png=>1, tiff=>1, pnm=>1, raw=>1, bmp=>1);
if ($iolready{$input{type}}) {
# Setup data source
- $IO = io_new_fd($fd); # sort of simple for now eh?
+ $IO = io_new_fd($fd); # sort of simple for now eh?
if ( $input{type} eq 'jpeg' ) {
($self->{IMG},$self->{IPTCRAW})=i_readjpeg_wiol( $IO );
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read jpeg image'; return undef; }
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read jpeg image'; return undef;
+ }
$self->{DEBUG} && print "loading a jpeg file\n";
return $self;
}
if ( $input{type} eq 'tiff' ) {
$self->{IMG}=i_readtiff_wiol( $IO, -1 ); # Fixme, check if that length parameter is ever needed
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read tiff image'; return undef; }
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read tiff image'; return undef;
+ }
$self->{DEBUG} && print "loading a tiff file\n";
return $self;
}
if ( $input{type} eq 'pnm' ) {
$self->{IMG}=i_readpnm_wiol( $IO, -1 ); # Fixme, check if that length parameter is ever needed
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read pnm image: '._error_as_msg(); return undef; }
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read pnm image: '._error_as_msg(); return undef;
+ }
$self->{DEBUG} && print "loading a pnm file\n";
return $self;
}
- } else {
+ if ( $input{type} eq 'png' ) {
+ $self->{IMG}=i_readpng_wiol( $IO, -1 ); # Fixme, check if that length parameter is ever needed
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read png image';
+ return undef;
+ }
+ $self->{DEBUG} && print "loading a png file\n";
+ }
- # Old code for reference while changing the new stuff
+ if ( $input{type} eq 'bmp' ) {
+ $self->{IMG}=i_readbmp_wiol( $IO );
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read bmp image';
+ return undef;
+ }
+ $self->{DEBUG} && print "loading a bmp file\n";
+ }
+ if ( $input{type} eq 'raw' ) {
+ my %params=(datachannels=>3,storechannels=>3,interleave=>1,%input);
- if (!$input{type} and $input{file}) { $input{type}=$FORMATGUESS->($input{file}); }
- if (!$input{type}) { $self->{ERRSTR}='type parameter missing and not possible to guess from extension'; return undef; }
+ if ( !($params{xsize} && $params{ysize}) ) {
+ $self->{ERRSTR}='missing xsize or ysize parameter for raw';
+ return undef;
+ }
- if (!$formats{$input{type}}) { $self->{ERRSTR}='format not supported'; return undef; }
+ $self->{IMG} = i_readraw_wiol( $IO,
+ $params{xsize},
+ $params{ysize},
+ $params{datachannels},
+ $params{storechannels},
+ $params{interleave});
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}='unable to read raw image';
+ return undef;
+ }
+ $self->{DEBUG} && print "loading a raw file\n";
+ }
- if ($input{file}) {
- $fh = new IO::File($input{file},"r");
- if (!defined $fh) { $self->{ERRSTR}='Could not open file'; return undef; }
- binmode($fh);
- $fd = $fh->fileno();
- }
- if ($input{fd}) { $fd=$input{fd} };
+ } else {
- if ( $input{type} eq 'gif' ) {
- my $colors;
- if ($input{colors} && !ref($input{colors})) {
- # must be a reference to a scalar that accepts the colour map
- $self->{ERRSTR} = "option 'colors' must be a scalar reference";
+ # Old code for reference while changing the new stuff
+
+ if (!$input{type} and $input{file}) {
+ $input{type}=$FORMATGUESS->($input{file});
+ }
+
+ if (!$input{type}) {
+ $self->{ERRSTR}='type parameter missing and not possible to guess from extension'; return undef;
+ }
+
+ if (!$formats{$input{type}}) {
+ $self->{ERRSTR}='format not supported';
return undef;
}
- if (exists $input{data}) {
- if ($input{colors}) {
- ($self->{IMG}, $colors) = i_readgif_scalar($input{data});
- }
- else {
- $self->{IMG}=i_readgif_scalar($input{data});
+
+ if ($input{file}) {
+ $fh = new IO::File($input{file},"r");
+ if (!defined $fh) {
+ $self->{ERRSTR}='Could not open file';
+ return undef;
}
+ binmode($fh);
+ $fd = $fh->fileno();
}
- else {
- if ($input{colors}) {
- ($self->{IMG}, $colors) = i_readgif( $fd );
+
+ if ($input{fd}) {
+ $fd=$input{fd};
+ }
+
+ if ( $input{type} eq 'gif' ) {
+ my $colors;
+ if ($input{colors} && !ref($input{colors})) {
+ # must be a reference to a scalar that accepts the colour map
+ $self->{ERRSTR} = "option 'colors' must be a scalar reference";
+ return undef;
}
- else {
- $self->{IMG} = i_readgif( $fd )
+ if (exists $input{data}) {
+ if ($input{colors}) {
+ ($self->{IMG}, $colors) = i_readgif_scalar($input{data});
+ } else {
+ $self->{IMG}=i_readgif_scalar($input{data});
+ }
+ } else {
+ if ($input{colors}) {
+ ($self->{IMG}, $colors) = i_readgif( $fd );
+ } else {
+ $self->{IMG} = i_readgif( $fd )
+ }
}
+ if ($colors) {
+ # we may or may not change i_readgif to return blessed objects...
+ ${ $input{colors} } = [ map { NC(@$_) } @$colors ];
+ }
+ if ( !defined($self->{IMG}) ) {
+ $self->{ERRSTR}= 'reading GIF:'._error_as_msg();
+ return undef;
+ }
+ $self->{DEBUG} && print "loading a gif file\n";
}
- if ($colors) {
- # we may or may not change i_readgif to return blessed objects...
- ${$input{colors}} = [ map { NC(@$_) } @$colors ];
- }
- if ( !defined($self->{IMG}) ) {
- $self->{ERRSTR}= 'reading GIF:'._error_as_msg(); return undef;
- }
- $self->{DEBUG} && print "loading a gif file\n";
- } elsif ( $input{type} eq 'jpeg' ) {
- if (exists $input{data}) { ($self->{IMG},$self->{IPTCRAW})=i_readjpeg_scalar($input{data}); }
- else { ($self->{IMG},$self->{IPTCRAW})=i_readjpeg( $fd ); }
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read jpeg image'; return undef; }
- $self->{DEBUG} && print "loading a jpeg file\n";
- } elsif ( $input{type} eq 'png' ) {
- if (exists $input{data}) { $self->{IMG}=i_readpng_scalar($input{data}); }
- else { $self->{IMG}=i_readpng( $fd ); }
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read png image'; return undef; }
- $self->{DEBUG} && print "loading a png file\n";
- } elsif ( $input{type} eq 'raw' ) {
- my %params=(datachannels=>3,storechannels=>3,interleave=>1);
- for(keys(%input)) { $params{$_}=$input{$_}; }
-
- if ( !($params{xsize} && $params{ysize}) ) { $self->{ERRSTR}='missing xsize or ysize parameter for raw'; return undef; }
- $self->{IMG}=i_readraw( $fd, $params{xsize}, $params{ysize},
- $params{datachannels}, $params{storechannels}, $params{interleave});
- if ( !defined($self->{IMG}) ) { $self->{ERRSTR}='unable to read raw image'; return undef; }
- $self->{DEBUG} && print "loading a raw file\n";
}
return $self;
- }
}
-
# Write an image to file
-
sub write {
my $self = shift;
my %input=(jpegquality=>75, gifquant=>'mc', lmdither=>6.0, lmfixed=>[],
fax_fine=>1, @_);
my ($fh, $rc, $fd, $IO);
- my %iolready=( tiff=>1 ); # this will be SO MUCH BETTER once they are all in there
+ my %iolready=( tiff=>1, raw=>1, png=>1, pnm=>1, bmp=>1, jpeg=>1 ); # this will be SO MUCH BETTER once they are all in there
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
} else {
$fh = new IO::File($input{file},"w+");
if (!defined $fh) { $self->{ERRSTR}='Could not open file'; return undef; }
- binmode($fh);
+ binmode($fh) or die;
$fd = $fh->fileno();
}
-
-
if ($iolready{$input{type}}) {
if (defined $fd) {
$IO = io_new_fd($fd);
$self->{ERRSTR}='Could not write to buffer';
return undef;
}
- }
- else {
+ } else {
if (!i_writetiff_wiol($self->{IMG}, $IO)) {
$self->{ERRSTR}='Could not write to buffer';
return undef;
}
}
+ } elsif ( $input{type} eq 'pnm' ) {
+ if ( ! i_writeppm_wiol($self->{IMG},$IO) ) {
+ $self->{ERRSTR}='unable to write pnm image';
+ return undef;
+ }
+ $self->{DEBUG} && print "writing a pnm file\n";
+ } elsif ( $input{type} eq 'raw' ) {
+ if ( !i_writeraw_wiol($self->{IMG},$IO) ) {
+ $self->{ERRSTR}='unable to write raw image';
+ return undef;
+ }
+ $self->{DEBUG} && print "writing a raw file\n";
+ } elsif ( $input{type} eq 'png' ) {
+ if ( !i_writepng_wiol($self->{IMG}, $IO) ) {
+ $self->{ERRSTR}='unable to write png image';
+ return undef;
+ }
+ $self->{DEBUG} && print "writing a png file\n";
+ } elsif ( $input{type} eq 'jpeg' ) {
+ if ( !i_writejpeg_wiol($self->{IMG}, $IO, $input{jpegquality})) {
+ $self->{ERRSTR}='unable to write jpeg image';
+ return undef;
+ }
+ $self->{DEBUG} && print "writing a jpeg file\n";
+ } elsif ( $input{type} eq 'bmp' ) {
+ if ( !i_writebmp_wiol($self->{IMG}, $IO) ) {
+ $self->{ERRSTR}='unable to write bmp image';
+ return undef;
+ }
+ $self->{DEBUG} && print "writing a bmp file\n";
}
if (exists $input{'data'}) {
}
return $self;
} else {
-
if ( $input{type} eq 'gif' ) {
if (not $input{gifplanes}) {
my $gp;
$rc = i_writegif_gen($fd, \%input, $self->{IMG});
}
-
-
} elsif ($input{gifquant} eq 'lm') {
$rc=i_writegif($self->{IMG},$fd,$input{gifplanes},$input{lmdither},$input{lmfixed});
} else {
}
$self->{DEBUG} && print "writing a gif file\n";
- } elsif ( $input{type} eq 'jpeg' ) {
- $rc=i_writejpeg($self->{IMG},$fd,$input{jpegquality});
- if ( !defined($rc) ) {
- $self->{ERRSTR}='unable to write jpeg image'; return undef;
- }
- $self->{DEBUG} && print "writing a jpeg file\n";
- } elsif ( $input{type} eq 'png' ) {
- $rc=i_writepng($self->{IMG},$fd);
- if ( !defined($rc) ) {
- $self->{ERRSTR}='unable to write png image'; return undef;
- }
- $self->{DEBUG} && print "writing a png file\n";
- } elsif ( $input{type} eq 'pnm' ) {
- $rc=i_writeppm($self->{IMG},$fd);
- if ( !defined($rc) ) {
- $self->{ERRSTR}='unable to write pnm image'; return undef;
- }
- $self->{DEBUG} && print "writing a pnm file\n";
- } elsif ( $input{type} eq 'raw' ) {
- $rc=i_writeraw($self->{IMG},$fd);
- if ( !defined($rc) ) {
- $self->{ERRSTR}='unable to write raw image'; return undef;
- }
- $self->{DEBUG} && print "writing a raw file\n";
}
-
}
return $self;
}
}
}
+# read multiple images from a file
+sub read_multi {
+ my ($class, %opts) = @_;
+
+ if ($opts{file} && !exists $opts{type}) {
+ # guess the type
+ my $type = $FORMATGUESS->($opts{file});
+ $opts{type} = $type;
+ }
+ unless ($opts{type}) {
+ $ERRSTR = "No type parameter supplied and it couldn't be guessed";
+ return;
+ }
+ my $fd;
+ my $file;
+ if ($opts{file}) {
+ $file = IO::File->new($opts{file}, "r");
+ unless ($file) {
+ $ERRSTR = "Could not open file $opts{file}: $!";
+ return;
+ }
+ binmode $file;
+ $fd = fileno($file);
+ }
+ elsif ($opts{fh}) {
+ $fd = fileno($opts{fh});
+ unless ($fd) {
+ $ERRSTR = "File handle specified with fh option not open";
+ return;
+ }
+ }
+ elsif ($opts{fd}) {
+ $fd = $opts{fd};
+ }
+ elsif ($opts{callback} || $opts{data}) {
+ # don't fail here
+ }
+ else {
+ $ERRSTR = "You need to specify one of file, fd, fh, callback or data";
+ return;
+ }
+
+ if ($opts{type} eq 'gif') {
+ my @imgs;
+ if ($fd) {
+ @imgs = i_readgif_multi($fd);
+ }
+ else {
+ if (Imager::i_giflib_version() < 4.0) {
+ $ERRSTR = "giflib3.x does not support callbacks";
+ return;
+ }
+ if ($opts{callback}) {
+ @imgs = i_readgif_multi_callback($opts{callback})
+ }
+ else {
+ @imgs = i_readgif_multi_scalar($opts{data});
+ }
+ }
+ if (@imgs) {
+ return map {
+ bless { IMG=>$_, DEBUG=>$DEBUG, ERRSTR=>undef }, 'Imager'
+ } @imgs;
+ }
+ else {
+ $ERRSTR = _error_as_msg();
+ return;
+ }
+ }
+
+ $ERRSTR = "Cannot read multiple images from $opts{type} files";
+ return;
+}
+
# Destroy an Imager object
sub DESTROY {
my $self=shift;
# delete $instances{$self};
if (defined($self->{IMG})) {
- i_img_destroy($self->{IMG});
+ # the following is now handled by the XS DESTROY method for
+ # Imager::ImgRaw object
+ # Re-enabling this will break virtual images
+ # tested for in t/t020masked.t
+ # i_img_destroy($self->{IMG});
undef($self->{IMG});
} else {
# print "Destroy Called on an empty image!\n"; # why did I put this here??
}
}
+sub rubthrough {
+ my $self=shift;
+ my %opts=(tx=>0,ty=>0,@_);
+ unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
+ unless ($opts{src} && $opts{src}->{IMG}) { $self->{ERRSTR}='empty input image for source'; return undef; }
+ unless (i_rubthru($self->{IMG}, $opts{src}->{IMG}, $opts{tx},$opts{ty})) {
+ $self->{ERRSTR} = $self->_error_as_msg();
+ return undef;
+ }
+ return $self;
+}
+sub flip {
+ my $self = shift;
+ my %opts = @_;
+ my %xlate = (h=>0, v=>1, hv=>2, vh=>2);
+ my $dir;
+ return () unless defined $opts{'dir'} and defined $xlate{$opts{'dir'}};
+ $dir = $xlate{$opts{'dir'}};
+ return $self if i_flipxy($self->{IMG}, $dir);
+ return ();
+}
+sub rotate {
+ my $self = shift;
+ my %opts = @_;
+ if (defined $opts{right}) {
+ my $degrees = $opts{right};
+ if ($degrees < 0) {
+ $degrees += 360 * int(((-$degrees)+360)/360);
+ }
+ $degrees = $degrees % 360;
+ if ($degrees == 0) {
+ return $self->copy();
+ }
+ elsif ($degrees == 90 || $degrees == 180 || $degrees == 270) {
+ my $result = Imager->new();
+ if ($result->{IMG} = i_rotate90($self->{IMG}, $degrees)) {
+ return $result;
+ }
+ else {
+ $self->{ERRSTR} = $self->_error_as_msg();
+ return undef;
+ }
+ }
+ else {
+ $self->{ERRSTR} = "Parameter 'right' must be a multiple of 90 degrees";
+ return undef;
+ }
+ }
+ elsif (defined $opts{radians} || defined $opts{degrees}) {
+ my $amount = $opts{radians} || $opts{degrees} * 3.1415926535 / 180;
+ my $result = Imager->new;
+ if ($result->{IMG} = i_rotate_exact($self->{IMG}, $amount)) {
+ return $result;
+ }
+ else {
+ $self->{ERRSTR} = $self->_error_as_msg();
+ return undef;
+ }
+ }
+ else {
+ $self->{ERRSTR} = "Only the 'right' parameter is available";
+ return undef;
+ }
+}
-sub rubthrough {
- my $self=shift;
- my %opts=(tx=>0,ty=>0,@_);
-
- unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
- unless ($opts{src} && $opts{src}->{IMG}) { $self->{ERRSTR}='empty input image for source'; return undef; }
+sub matrix_transform {
+ my $self = shift;
+ my %opts = @_;
- i_rubthru($self->{IMG}, $opts{src}->{IMG}, $opts{tx},$opts{ty});
- return $self;
-}
+ if ($opts{matrix}) {
+ my $xsize = $opts{xsize} || $self->getwidth;
+ my $ysize = $opts{ysize} || $self->getheight;
+ my $result = Imager->new;
+ $result->{IMG} = i_matrix_transform($self->{IMG}, $xsize, $ysize,
+ $opts{matrix})
+ or return undef;
-sub flip {
- my $self = shift;
- my %opts = @_;
- my %xlate = (h=>0, v=>1, hv=>2, vh=>2);
- my $dir;
- return () unless defined $opts{'dir'} and defined $xlate{$opts{'dir'}};
- $dir = $xlate{$opts{'dir'}};
- return $self if i_flipxy($self->{IMG}, $dir);
- return ();
+ return $result;
+ }
+ else {
+ $self->{ERRSTR} = "matrix parameter required";
+ return undef;
+ }
}
-
+# blame Leolo :)
+*yatf = \&matrix_transform;
# These two are supported for legacy code only
sub i_color_new {
- return Imager::Color->new($_[0], $_[1], $_[2], $_[3]);
+ return Imager::Color->new(@_);
}
sub i_color_set {
- return Imager::Color::set($_[0], $_[1], $_[2], $_[3], $_[4]);
+ return Imager::Color::set(@_);
}
-
-
# Draws a box between the specified corner points.
-
sub box {
my $self=shift;
unless ($self->{IMG}) { $self->{ERRSTR}='empty input image'; return undef; }
return $self;
}
-
-
-
-
-
-
-
-
-
-
-
# destructive border - image is shrunk by one pixel all around
sub border {
return;
}
- my $aa=1;
- my $font=$input{'font'};
- my $align=$font->{'align'} unless exists $input{'align'};
- my $color=$input{'color'} || $font->{'color'};
- my $size=$input{'size'} || $font->{'size'};
-
- if (!defined($size)) { $self->{ERRSTR}='No size parameter and no default in font'; return undef; }
-
- $aa=$font->{'aa'} if exists $font->{'aa'};
- $aa=$input{'aa'} if exists $input{'aa'};
-
-
-
-# unless($font->can('text')) {
-# $self->{ERRSTR}="font is unable to do what we need";
-# return;
-# }
-
-# use Data::Dumper;
-# warn Dumper($font);
-
-# print "Channel=".$input{'channel'}."\n";
-
- if ( $font->{'type'} eq 't1' ) {
- if ( exists $input{'channel'} ) {
- Imager::Font::t1_set_aa_level($aa);
- i_t1_cp($self->{IMG},$input{'x'},$input{'y'},
- $input{'channel'},$font->{'id'},$size,
- $input{'string'},length($input{'string'}),1);
- } else {
- Imager::Font::t1_set_aa_level($aa);
- i_t1_text($self->{IMG},$input{'x'},$input{'y'},
- $color,$font->{'id'},$size,
- $input{'string'},length($input{'string'}),1);
- }
- }
-
- if ( $font->{'type'} eq 'tt' ) {
- if ( exists $input{'channel'} ) {
- i_tt_cp($font->{'id'},$self->{IMG},$input{'x'},$input{'y'},$input{'channel'},
- $size,$input{'string'},length($input{'string'}),$aa);
- } else {
- i_tt_text($font->{'id'},$self->{IMG},$input{'x'},$input{'y'},$color,$size,
- $input{'string'},length($input{'string'}),$aa);
- }
+ unless ($input{font}->draw(image=>$self, %input)) {
+ $self->{ERRSTR} = $self->_error_as_msg();
+ return;
}
return $self;
}
-
-
-
-
# Shortcuts that can be exported
sub newcolor { Imager::Color->new(@_); }
#### Utility routines
-sub errstr { $_[0]->{ERRSTR} }
-
-
-
-
-
+sub errstr {
+ ref $_[0] ? $_[0]->{ERRSTR} : $ERRSTR
+}
# Default guess for the type of an image from extension
return 'jpeg' if ($ext =~ m/^jpe?g$/);
return 'pnm' if ($ext =~ m/^p[pgb]m$/);
return 'png' if ($ext eq "png");
+ return 'bmp' if ($ext eq "bmp" || $ext eq "dib");
return 'gif' if ($ext eq "gif");
return ();
}
return (caption=>$caption,photogr=>$photogr,headln=>$headln,credit=>$credit);
}
-
-
-
-
-
# Autoload methods go after =cut, and are processed by the autosplit program.
1;
$img->img_set(xsize=>500, ysize=>500, channels=>4);
+To create paletted images, set the 'type' parameter to 'paletted':
+
+ $img = Imager->new(xsize=>200, ysize=>200, channels=>3, type=>'paletted');
+
+which creates an image with a maxiumum of 256 colors, which you can
+change by supplying the C<maxcolors> parameter.
+
+You can create a new paletted image from an existing image using the
+to_paletted() method:
+
+ $palimg = $img->to_paletted(\%opts)
+
+where %opts contains the options specified under L<Quantization options>.
+
+You can convert a paletted image (or any image) to an 8-bit/channel
+RGB image with:
+
+ $rgbimg = $img->to_rgb8;
+
+Warning: if you draw on a paletted image with colors that aren't in
+the palette, the image will be internally converted to a normal image.
+
+For improved color precision you can use the bits parameter to specify
+16 bites per channel:
+
+ $img = Imager->new(xsize=>200, ysize=>200, channels=>3, bits=>16);
+
+Note that as of this writing all functions should work on 16-bit
+images, but at only 8-bit/channel precision.
+
+Currently only 8 and 16/bit per channel image types are available,
+this may change later.
+
Color objects are created by calling the Imager::Color->new()
method:
@images)
or die "Oh dear!";
+You can read multi-image files (currently only GIF files) using the
+read_multi() method:
+
+ my @imgs = Imager->read_multi(file=>'foo.gif')
+ or die "Cannot read images: ",Imager->errstr;
+
+The possible parameters for read_multi() are:
+
+=over
+
+=item file
+
+The name of the file to read in.
+
+=item fh
+
+A filehandle to read in. This can be the name of a filehandle, but it
+will need the package name, no attempt is currently made to adjust
+this to the caller's package.
+
+=item fd
+
+The numeric file descriptor of an open file (or socket).
+
+=item callback
+
+A function to be called to read in data, eg. reading a blob from a
+database incrementally.
+
+=item data
+
+The data of the input file in memory.
+
+=item type
+
+The type of file. If the file is parameter is given and provides
+enough information to guess the type, then this parameter is optional.
+
+=back
+
+Note: you cannot use the callback or data parameter with giflib
+versions before 4.0.
+
+When reading from a GIF file with read_multi() the images are returned
+as paletted images.
+
=head2 Gif options
These options can be specified when calling write_multi() for gif
print "Less than 512 colors in image\n";
}
+The bits() method retrieves the number of bits used to represent each
+channel in a pixel, typically 8. The type() method returns either
+'direct' for truecolor images or 'paletted' for paletted images. The
+virtual() method returns non-zero if the image contains no actual
+pixels, for example masked images.
+
+=head2 Paletted Images
+
+In general you can work with paletted images in the same way as RGB
+images, except that if you attempt to draw to a paletted image with a
+color that is not in the image's palette, the image will be converted
+to an RGB image. This means that drawing on a paletted image with
+anti-aliasing enabled will almost certainly convert the image to RGB.
+
+You can add colors to a paletted image with the addcolors() method:
+
+ my @colors = ( Imager::Color->new(255, 0, 0),
+ Imager::Color->new(0, 255, 0) );
+ my $index = $img->addcolors(colors=>\@colors);
+
+The return value is the index of the first color added, or undef if
+adding the colors would overflow the palette.
+
+Once you have colors in the palette you can overwrite them with the
+setcolors() method:
+
+ $img->setcolors(start=>$start, colors=>\@colors);
+
+Returns true on success.
+
+To retrieve existing colors from the palette use the getcolors() method:
+
+ # get the whole palette
+ my @colors = $img->getcolors();
+ # get a single color
+ my $color = $img->getcolors(start=>$index);
+ # get a range of colors
+ my @colors = $img->getcolors(start=>$index, count=>$count);
+
+To quickly find a color in the palette use findcolor():
+
+ my $index = $img->findcolor(color=>$color);
+
+which returns undef on failure, or the index of the color.
+
+You can get the current palette size with $img->colorcount, and the
+maximum size of the palette with $img->maxcolors.
+
=head2 Drawing Methods
IMPLEMENTATION MORE OR LESS DONE CHECK THE TESTS
$img->flip(dir=>"vh"); # vertical and horizontal flip
$nimg = $img->copy->flip(dir=>"v"); # make a copy and flip it vertically
+=head2 Rotating images
+
+Use the rotate() method to rotate an image.
+
+To rotate by an exact amount in degrees or radians, use the 'degrees'
+or 'radians' parameter:
+
+ my $rot20 = $img->rotate(degrees=>20);
+ my $rotpi4 = $img->rotate(radians=>3.14159265/4);
+
+To rotate in steps of 90 degrees, use the 'right' parameter:
+
+ my $rotated = $img->rotate(right=>270);
+
+Rotations are clockwise for positive values.
+
=head2 Blending Images
To put an image or a part of an image directly
$img->rubthrough(src=>$srcimage,tx=>30,ty=>50);
-That will take the image C<$srcimage> and overlay it with the
-upper left corner at (30,50). The C<$srcimage> must be a 4 channel
-image. The last channel is used as an alpha channel.
+That will take the image C<$srcimage> and overlay it with the upper
+left corner at (30,50). You can rub 2 or 4 channel images onto a 3
+channel image, or a 2 channel image onto a 1 channel image. The last
+channel is used as an alpha channel.
=head2 Filters
source.
Filter Arguments
- turbnoise
autolevels lsat(0.1) usat(0.1) skew(0)
- radnoise
- noise amount(3) subtype(0)
+ bumpmap bump elevation(0) lightx lighty st(2)
contrast intensity
- hardinvert
+ conv coef
+ gaussian stddev
gradgen xo yo colors dist
+ hardinvert
+ noise amount(3) subtype(0)
+ postlevels levels(10)
+ radnoise xo(100) yo(100) ascale(17.0) rscale(0.02)
+ turbnoise xo(0.0) yo(0.0) scale(10.0)
+ watermark wmark pixdiff(10) tx(0) ty(0)
The default values are in parenthesis. All parameters must have some
value but if a parameter has a default value it may be omitted when
calling the filter function.
-FIXME: make a seperate pod for filters?
+The filters are:
+
+=over
+
+=item autolevels
+
+scales the value of each channel so that the values in the image will
+cover the whole possible range for the channel. I<lsat> and I<usat>
+truncate the range by the specified fraction at the top and bottom of
+the range respectivly..
+
+=item bumpmap
+
+uses the channel I<elevation> image I<bump> as a bumpmap on your
+image, with the light at (I<lightx>, I<lightty>), with a shadow length
+of I<st>.
+
+=item contrast
+
+scales each channel by I<intensity>. Values of I<intensity> < 1.0
+will reduce the contrast.
+
+=item conv
+
+performs 2 1-dimensional convolutions on the image using the values
+from I<coef>. I<coef> should be have an odd length.
+
+=item gaussian
+
+performs a gaussian blur of the image, using I<stddev> as the standard
+deviation of the curve used to combine pixels, larger values give
+bigger blurs. For a definition of Gaussian Blur, see:
+
+ http://www.maths.abdn.ac.uk/~igc/tch/mx4002/notes/node99.html
+
+=item gradgen
+
+renders a gradient, with the given I<colors> at the corresponding
+points (x,y) in I<xo> and I<yo>. You can specify the way distance is
+measured for color blendeing by setting I<dist> to 0 for Euclidean, 1
+for Euclidean squared, and 2 for Manhattan distance.
+
+=item hardinvert
+
+inverts the image, black to white, white to black. All channels are
+inverted, including the alpha channel if any.
+
+=item noise
+
+adds noise of the given I<amount> to the image. If I<subtype> is
+zero, the noise is even to each channel, otherwise noise is added to
+each channel independently.
+
+=item radnoise
+
+renders radiant Perlin turbulent noise. The centre of the noise is at
+(I<xo>, I<yo>), I<ascale> controls the angular scale of the noise ,
+and I<rscale> the radial scale, higher numbers give more detail.
+
+=item postlevels
+
+alters the image to have only I<levels> distinct level in each
+channel.
+
+=item turbnoise
+
+renders Perlin turbulent noise. (I<xo>, I<yo>) controls the origin of
+the noise, and I<scale> the scale of the noise, with lower numbers
+giving more detail.
+
+=item watermark
+
+applies I<wmark> as a watermark on the image with strength I<pixdiff>,
+with an origin at (I<tx>, I<ty>)
+
+=back
+
+A demonstration of most of the filters can be found at:
+
+ http://www.develop-help.com/imager/filters.html
+
+(This is a slow link.)
=head2 Color transformations
the virtual machine used to transform the images, see
L<Imager::regmach.pod>.
+=head2 Matrix Transformations
+
+Rather than having to write code in a little language, you can use a
+matrix to perform transformations, using the matrix_transform()
+method:
+
+ my $im2 = $im->matrix_transform(matrix=>[ -1, 0, $im->getwidth-1,
+ 0, 1, 0,
+ 0, 0, 1 ]);
+
+By default the output image will be the same size as the input image,
+but you can supply the xsize and ysize parameters to change the size.
+
+Rather than building matrices by hand you can use the Imager::Matrix2d
+module to build the matrices. This class has methods to allow you to
+scale, shear, rotate, translate and reflect, and you can combine these
+with an overloaded multiplication operator.
+
+WARNING: the matrix you provide in the matrix operator transforms the
+co-ordinates within the B<destination> image to the co-ordinates
+within the I<source> image. This can be confusing.
+
+Since Imager has 3 different fairly general ways of transforming an
+image spatially, this method also has a yatf() alias. Yet Another
+Transformation Function.
+
+=head2 Masked Images
+
+Masked images let you control which pixels are modified in an
+underlying image. Where the first channel is completely black in the
+mask image, writes to the underlying image are ignored.
+
+For example, given a base image called $img:
+
+ my $mask = Imager->new(xsize=>$img->getwidth, ysize=>getheight,
+ channels=>1);
+ # ... draw something on the mask
+ my $maskedimg = $img->masked(mask=>$mask);
+
+You can specifiy the region of the underlying image that is masked
+using the left, top, right and bottom options.
+
+If you just want a subset of the image, without masking, just specify
+the region without specifying a mask.
+
=head2 Plugins
It is possible to add filters to the module without recompiling the
Linux, Solaris, HPUX, OpenBSD, FreeBSD, TRU64/OSF1, AIX.
If you test this on other systems please let me know.
+=head2 Tags
+
+Image tags contain meta-data about the image, ie. information not
+stored as pixels of the image.
+
+At the perl level each tag has a name or code and a value, which is an
+integer or an arbitrary string. An image can contain more than one
+tag with the same name or code.
+
+You can retrieve tags from an image using the tags() method, you can
+get all of the tags in an image, as a list of array references, with
+the code or name of the tag followed by the value of the tag:
+
+ my @alltags = $img->tags;
+
+or you can get all tags that have a given name:
+
+ my @namedtags = $img->tags(name=>$name);
+
+or a given code:
+
+ my @tags = $img->tags(code=>$code);
+
+You can add tags using the addtag() method, either by name:
+
+ my $index = $img->addtag(name=>$name, value=>$value);
+
+or by code:
+
+ my $index = $img->addtag(code=>$code, value=>$value);
+
+You can remove tags with the deltag() method, either by index:
+
+ $img->deltag(index=>$index);
+
+or by name:
+
+ $img->deltag(name=>$name);
+
+or by code:
+
+ $img->deltag(code=>$code);
+
+In each case deltag() returns the number of tags deleted.
+
+When you read a GIF image using read_multi(), each image can include
+the following tags:
+
+=over
+
+=item gif_left
+
+the offset of the image from the left of the "screen" ("Image Left
+Position")
+
+=item gif_top
+
+the offset of the image from the top of the "screen" ("Image Top Position")
+
+=item gif_interlace
+
+non-zero if the image was interlaced ("Interlace Flag")
+
+=item gif_screen_width
+
+=item gif_screen_height
+
+the size of the logical screen ("Logical Screen Width",
+"Logical Screen Height")
+
+=item gif_local_map
+
+Non-zero if this image had a local color map.
+
+=item gif_background
+
+The index in the global colormap of the logical screen's background
+color. This is only set if the current image uses the global
+colormap.
+
+=item gif_trans_index
+
+The index of the color in the colormap used for transparency. If the
+image has a transparency then it is returned as a 4 channel image with
+the alpha set to zero in this palette entry. ("Transparent Color Index")
+
+=item gif_delay
+
+The delay until the next frame is displayed, in 1/100 of a second.
+("Delay Time").
+
+=item gif_user_input
+
+whether or not a user input is expected before continuing (view dependent)
+("User Input Flag").
+
+=item gif_disposal
+
+how the next frame is displayed ("Disposal Method")
+
+=item gif_loop
+
+the number of loops from the Netscape Loop extension. This may be zero.
+
+=item gif_comment
+
+the first block of the first gif comment before each image.
+
+=back
+
+Where applicable, the ("name") is the name of that field from the GIF89
+standard.
+
+The following tags are set in a TIFF image when read, and can be set
+to control output:
+
+=over
+
+=item tiff_resolutionunit
+
+The value of the ResolutionUnit tag. This is ignored on writing if
+the i_aspect_only tag is non-zero.
+
+=back
+
+The following tags are set when reading a Windows BMP file is read:
+
+=over
+
+=item bmp_compression
+
+The type of compression, if any.
+
+=item bmp_important_colors
+
+The number of important colors as defined by the writer of the image.
+
+=back
+
+Some standard tags will be implemented as time goes by:
+
+=over
+
+=item i_xres
+
+=item i_yres
+
+The spatial resolution of the image in pixels per inch. If the image
+format uses a different scale, eg. pixels per meter, then this value
+is converted. A floating point number stored as a string.
+
+=item i_aspect_only
+
+If this is non-zero then the values in i_xres and i_yres are treated
+as a ratio only. If the image format does not support aspect ratios
+then this is scaled so the smaller value is 72dpi.
+
+=back
+
=head1 BUGS
box, arc, circle do not support antialiasing yet. arc, is only filled
=head1 SEE ALSO
-perl(1), Imager::Color(3), Imager::Font, Affix::Infix2Postfix(3),
-Parse::RecDescent(3) http://www.eecs.umich.edu/~addi/perl/Imager/
+perl(1), Imager::Color(3), Imager::Font(3), Imager::Matrix2d(3),
+Affix::Infix2Postfix(3), Parse::RecDescent(3)
+http://www.eecs.umich.edu/~addi/perl/Imager/
=cut
projects / imager.git / blobdiff