From 8895c34d1b5dc58355af99cdc7bf0d4216c2bfa0 Mon Sep 17 00:00:00 2001
From: dakkar <dakkar@thenautilus.net>
Date: Sun, 23 Oct 2016 18:16:39 +0100
Subject: first stab

---
 dist.ini              |  6 +++-
 lib/Data/QRCode/XS.pm | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+), 1 deletion(-)
 create mode 100644 lib/Data/QRCode/XS.pm

diff --git a/dist.ini b/dist.ini
index 6081f49..5f6eec3 100644
--- a/dist.ini
+++ b/dist.ini
@@ -1,10 +1,14 @@
+name = Data-QRCode
 author  = Gianni Ceccarelli <dakkar@thenautilus.net>
 license = Perl_5
 copyright_holder = Gianni Ceccarelli <dakkar@thenautilus.net>
-copyright_year   = 2015
+copyright_year   = 2016
 
 [GatherDir]
 
+[InlineModule]
+module = Data::QRCode::XS
+
 [PodWeaver]
 ; authordep Pod::Elemental::Transformer::List
 
diff --git a/lib/Data/QRCode/XS.pm b/lib/Data/QRCode/XS.pm
new file mode 100644
index 0000000..f42940f
--- /dev/null
+++ b/lib/Data/QRCode/XS.pm
@@ -0,0 +1,85 @@
+package Data::QRCode::XS;
+use strict;
+use warnings;
+# VERSION
+use Alien::QREncode;
+use Data::QRCode::XS::Inline C => ( );
+
+my %levels = (
+    L => ECLEVEL_L,
+    M => ECLEVEL_M,
+    Q => ECLEVEL_Q,
+    H => ECLEVEL_H,
+);
+
+sub new {
+    my ($class, $data, $level, $version) = @_;
+    $version ||= 0;
+    $level = $levels{uc $level} || ECLEVEL_M;
+    return _build($class,$data,$level,$version);
+}
+
+sub data_at {
+    my ($self,$x,$y) = @_;
+    my $width = $self->width;
+    if ($x < 0 or $x >= $width or $y < 0 or $y >= $width) {
+        return;
+    }
+    my $value = _data_at($self,$x,$y);
+
+    return {
+        color        => $value & 0x01,
+        in_data      => $value & 0x02,
+        in_format    => $value & 0x04,
+        in_version   => $value & 0x08,
+        in_timing    => $value & 0x10,
+        in_alignment => $value & 0x20,
+        in_finder    => $value & 0x40,
+        in_misc      => $value & 0x80,
+    };
+}
+
+1;
+
+__DATA__
+
+__C__
+
+int ECLEVEL_L() { return QR_ECLEVEL_L; }
+int ECLEVEL_M() { return QR_ECLEVEL_M; }
+int ECLEVEL_Q() { return QR_ECLEVEL_Q; }
+int ECLEVEL_H() { return QR_ECLEVEL_H; }
+
+SV* _build(const char* class, const SV* data, int level, int version ) {
+    unsigned char * str;
+    STRLEN len;
+    SV * qrsv; SV* self;
+    QRcode* qr_code;
+
+    str = SvPVutf8(data,len);
+    qr_code = QRcode_encodeData(len,data,version,(QRecLevel)level);
+    qrsv = newSViv((IV)qr_code);
+    self = newRV_noinc(qrsv);
+    sv_bless(self, gv_stashpv(class, GV_ADD));
+    SvREADONLY_on(qrsv);
+
+    return self;
+}
+
+int version(SV* self) {
+    return ((QRcode*)SvIV(SvRV(self)))->version;
+}
+
+int width(SV* self) {
+    return ((QRcode*)SvIV(SvRV(self)))->width;
+}
+
+void DESTROY(SV* self) {
+    QRcode* qr_code = (QRcode*)SvIV(SvRV(self));
+    QRcode_free(qr_code);
+}
+
+int _data_at(SV* self, int x, int y) {
+    QRcode* qr_code = (QRcode*)SvIV(SvRV(self));
+    return qr_code->data[x+y*width];
+}
-- 
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