25 files changed, 425 insertions, 0 deletions

diff --git a/examples/codabar.png b/examples/codabar.png
new file mode 100644
index 0000000..3482a31
--- /dev/null
+++ b/examples/codabar.png
diff --git a/examples/code-128.png b/examples/code-128.png
new file mode 100644
index 0000000..d8b8845
--- /dev/null
+++ b/examples/code-128.png
diff --git a/examples/code-39.png b/examples/code-39.png
new file mode 100644
index 0000000..2b0fbc8
--- /dev/null
+++ b/examples/code-39.png
diff --git a/examples/code-93.png b/examples/code-93.png
new file mode 100644
index 0000000..83a65b1
--- /dev/null
+++ b/examples/code-93.png
diff --git a/examples/code-upc-a.png b/examples/code-upc-a.png
new file mode 100644
index 0000000..992a49c
--- /dev/null
+++ b/examples/code-upc-a.png
diff --git a/examples/databar-exp.png b/examples/databar-exp.png
new file mode 100644
index 0000000..7091be4
--- /dev/null
+++ b/examples/databar-exp.png
diff --git a/examples/databar.png b/examples/databar.png
new file mode 100644
index 0000000..23dc6c6
--- /dev/null
+++ b/examples/databar.png
diff --git a/examples/ean-13.png b/examples/ean-13.png
new file mode 100644
index 0000000..ac6dd0b
--- /dev/null
+++ b/examples/ean-13.png
diff --git a/examples/ean-2.png b/examples/ean-2.png
new file mode 100644
index 0000000..5ec2983
--- /dev/null
+++ b/examples/ean-2.png
diff --git a/examples/ean-5.png b/examples/ean-5.png
new file mode 100644
index 0000000..2c3d039
--- /dev/null
+++ b/examples/ean-5.png
diff --git a/examples/ean-8.png b/examples/ean-8.png
new file mode 100644
index 0000000..d1cc3a8
--- /dev/null
+++ b/examples/ean-8.png
diff --git a/examples/i2-5.png b/examples/i2-5.png
new file mode 100644
index 0000000..7d46fdc
--- /dev/null
+++ b/examples/i2-5.png
diff --git a/examples/processor.c b/examples/processor.c
new file mode 100644
index 0000000..773440e
--- /dev/null
+++ b/examples/processor.c
@@ -0,0 +1,47 @@
+#include <stdio.h>
+#include <zbar.h>
+
+static void my_handler(zbar_image_t *image, const void *userdata)
+{
+    /* extract results */
+    const zbar_symbol_t *symbol = zbar_image_first_symbol(image);
+
+    for (; symbol; symbol = zbar_symbol_next(symbol)) {
+	/* do something useful with results */
+	zbar_symbol_type_t typ = zbar_symbol_get_type(symbol);
+	const char *data       = zbar_symbol_get_data(symbol);
+
+	printf("decoded %s symbol \"%s\"\n", zbar_get_symbol_name(typ), data);
+    }
+}
+
+int main(int argc, char **argv)
+{
+    const char *device = "/dev/video0";
+
+    /* create a Processor */
+    zbar_processor_t *proc = zbar_processor_create(1);
+
+    /* configure the Processor */
+    zbar_processor_set_config(proc, 0, ZBAR_CFG_ENABLE, 1);
+
+    /* initialize the Processor */
+    if (argc > 1)
+	device = argv[1];
+    zbar_processor_init(proc, device, 1);
+
+    /* setup a callback */
+    zbar_processor_set_data_handler(proc, my_handler, NULL);
+
+    /* enable the preview window */
+    zbar_processor_set_visible(proc, 1);
+    zbar_processor_set_active(proc, 1);
+
+    /* keep scanning until user provides key/mouse input */
+    zbar_processor_user_wait(proc, -1);
+
+    /* clean up */
+    zbar_processor_destroy(proc);
+
+    return (0);
+}
diff --git a/examples/processor.cpp b/examples/processor.cpp
new file mode 100644
index 0000000..a032a5b
--- /dev/null
+++ b/examples/processor.cpp
@@ -0,0 +1,44 @@
+#include <iostream>
+#include <zbar.h>
+
+using namespace std;
+using namespace zbar;
+
+class MyHandler : public Image::Handler
+{
+    void image_callback(Image &image)
+    {
+	for (SymbolIterator symbol = image.symbol_begin();
+	     symbol != image.symbol_end(); ++symbol)
+	    cout << "decoded " << symbol->get_type_name() << " symbol "
+		 << "\"" << symbol->get_data() << "\"" << endl;
+    }
+};
+
+int main(int argc, char **argv)
+{
+    // create and initialize a Processor
+    const char *device = "/dev/video0";
+
+    if (argc > 1)
+	device = argv[1];
+    Processor proc(true, device);
+
+    // configure the Processor
+    proc.set_config(ZBAR_NONE, ZBAR_CFG_ENABLE, 1);
+
+    // setup a callback
+    MyHandler my_handler;
+    proc.set_handler(my_handler);
+
+    // enable the preview window
+    proc.set_visible();
+    proc.set_active();
+
+    try {
+	// keep scanning until user provides key/mouse input
+	proc.user_wait();
+    } catch (ClosedError &e) {
+    }
+    return (0);
+}
diff --git a/examples/qr-code-binary.png b/examples/qr-code-binary.png
new file mode 100644
index 0000000..6337d26
--- /dev/null
+++ b/examples/qr-code-binary.png
diff --git a/examples/qr-code-inverted.png b/examples/qr-code-inverted.png
new file mode 100644
index 0000000..79c46d3
--- /dev/null
+++ b/examples/qr-code-inverted.png
diff --git a/examples/qr-code.png b/examples/qr-code.png
new file mode 100644
index 0000000..bd04229
--- /dev/null
+++ b/examples/qr-code.png
diff --git a/examples/scan_image.c b/examples/scan_image.c
new file mode 100644
index 0000000..a44b58c
--- /dev/null
+++ b/examples/scan_image.c
@@ -0,0 +1,117 @@
+#include <png.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <zbar.h>
+
+#if !defined(PNG_LIBPNG_VER) || PNG_LIBPNG_VER < 10018 || \
+    (PNG_LIBPNG_VER > 10200 && PNG_LIBPNG_VER < 10209)
+/* Changes to Libpng from version 1.2.42 to 1.4.0 (January 4, 2010)
+ * ...
+ * 2. m. The function png_set_gray_1_2_4_to_8() was removed. It has been
+ *       deprecated since libpng-1.0.18 and 1.2.9, when it was replaced with
+ *       png_set_expand_gray_1_2_4_to_8() because the former function also
+ *       expanded palette images.
+ */
+#define png_set_expand_gray_1_2_4_to_8 png_set_gray_1_2_4_to_8
+#endif
+
+zbar_image_scanner_t *scanner = NULL;
+
+/* to complete a runnable example, this abbreviated implementation of
+ * get_data() will use libpng to read an image file. refer to libpng
+ * documentation for details
+ */
+static void get_data(const char *name, int *width, int *height, void **raw)
+{
+    png_structp png;
+    png_infop info;
+    int color, bits;
+    png_bytep *rows;
+    int i;
+    FILE *file = fopen(name, "rb");
+
+    if (!file)
+	exit(2);
+    png = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+    if (!png)
+	exit(3);
+    if (setjmp(png_jmpbuf(png)))
+	exit(4);
+    info = png_create_info_struct(png);
+    if (!info)
+	exit(5);
+    png_init_io(png, file);
+    png_read_info(png, info);
+    /* configure for 8bpp grayscale input */
+    color = png_get_color_type(png, info);
+    bits  = png_get_bit_depth(png, info);
+    if (color & PNG_COLOR_TYPE_PALETTE)
+	png_set_palette_to_rgb(png);
+    if (color == PNG_COLOR_TYPE_GRAY && bits < 8)
+	png_set_expand_gray_1_2_4_to_8(png);
+    if (bits == 16)
+	png_set_strip_16(png);
+    if (color & PNG_COLOR_MASK_ALPHA)
+	png_set_strip_alpha(png);
+    if (color & PNG_COLOR_MASK_COLOR)
+	png_set_rgb_to_gray_fixed(png, 1, -1, -1);
+
+    /* allocate image */
+    *width  = png_get_image_width(png, info);
+    *height = png_get_image_height(png, info);
+    *raw    = (png_bytep)calloc(*width * *height, sizeof(png_byte));
+    rows    = (png_bytep *)calloc(*height, sizeof(*rows));
+
+    for (i = 0; i < *height; i++)
+	rows[i] = ((png_bytep)(*raw)) + (*width * i);
+
+    png_read_image(png, rows);
+    free(rows);
+}
+
+int main(int argc, char **argv)
+{
+    int width, height, n;
+    void *raw;
+    zbar_image_t *image;
+    const zbar_symbol_t *symbol;
+
+    if (argc < 2)
+	return (1);
+
+    /* create a reader */
+    scanner = zbar_image_scanner_create();
+
+    /* configure the reader */
+    zbar_image_scanner_set_config(scanner, 0, ZBAR_CFG_ENABLE, 1);
+
+    /* obtain image data */
+    width = 0, height = 0;
+    raw = NULL;
+    get_data(argv[1], &width, &height, &raw);
+
+    /* wrap image data */
+    image = zbar_image_create();
+    zbar_image_set_format(image, zbar_fourcc('Y', '8', '0', '0'));
+    zbar_image_set_size(image, width, height);
+    zbar_image_set_data(image, raw, width * height, zbar_image_free_data);
+
+    /* scan the image for barcodes */
+    n = zbar_scan_image(scanner, image);
+
+    /* extract results */
+    symbol = zbar_image_first_symbol(image);
+    for (; symbol; symbol = zbar_symbol_next(symbol)) {
+	/* do something useful with results */
+	zbar_symbol_type_t typ = zbar_symbol_get_type(symbol);
+	const char *data       = zbar_symbol_get_data(symbol);
+
+	printf("decoded %s symbol \"%s\"\n", zbar_get_symbol_name(typ), data);
+    }
+
+    /* clean up */
+    zbar_image_destroy(image);
+    zbar_image_scanner_destroy(scanner);
+
+    return (0);
+}
diff --git a/examples/scan_image.cpp b/examples/scan_image.cpp
new file mode 100644
index 0000000..55f5c32
--- /dev/null
+++ b/examples/scan_image.cpp
@@ -0,0 +1,56 @@
+#include <Magick++.h>
+#include <iostream>
+#include <zbar.h>
+#define STR(s) #s
+
+using namespace std;
+using namespace zbar;
+
+int main(int argc, char **argv)
+{
+    if (argc < 2)
+	return (1);
+
+#ifdef MAGICK_HOME
+    // http://www.imagemagick.org/Magick++/
+    //    under Windows it is necessary to initialize the ImageMagick
+    //    library prior to using the Magick++ library
+    Magick::InitializeMagick(MAGICK_HOME);
+#endif
+
+    // create a reader
+    ImageScanner scanner;
+
+    // configure the reader
+    scanner.set_config(ZBAR_NONE, ZBAR_CFG_ENABLE, 1);
+
+    // obtain image data
+    Magick::Image magick(argv[1]); // read an image file
+
+    int width  = magick.columns(); // extract dimensions
+    int height = magick.rows();
+
+    Magick::Blob blob; // extract the raw data
+    magick.modifyImage();
+    magick.write(&blob, "GRAY", 8);
+    const void *raw = blob.data();
+
+    // wrap image data
+    Image image(width, height, "Y800", raw, width * height);
+
+    // scan the image for barcodes
+    int n = scanner.scan(image);
+
+    // extract results
+    for (Image::SymbolIterator symbol = image.symbol_begin();
+	 symbol != image.symbol_end(); ++symbol) {
+	// do something useful with results
+	cout << "decoded " << symbol->get_type_name() << " symbol \""
+	     << symbol->get_data() << '"' << endl;
+    }
+
+    // clean up
+    image.set_data(NULL, 0);
+
+    return (0);
+}
diff --git a/examples/scan_image.vcproj b/examples/scan_image.vcproj
new file mode 100644
index 0000000..37937de
--- /dev/null
+++ b/examples/scan_image.vcproj
@@ -0,0 +1,46 @@
+<?xml version="1.0"?>
+<VisualStudioProject
+  ProjectType="Visual C++"
+  Version="8.00"
+  Name="scan_image"
+  RootNamespace="scan_image"
+  Keyword="Win32Proj">
+
+  <Platforms>
+    <Platform Name="Win32"/>
+  </Platforms>
+
+  <Configurations>
+    <Configuration
+      Name="Debug|Win32"
+      ConfigurationType="1">
+      <Tool
+        Name="VCCLCompilerTool"
+        Optimization="0"
+        AdditionalIncludeDirectories="..\include;&quot;C:\Program Files\ImageMagick-6.5.4-Q16\include&quot;"
+        PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;&quot;MAGICK_HOME=STR(C:\\Program Files\\ImageMagick-6.5.4-Q16)&quot;"
+        RuntimeLibrary="2"
+        UsePrecompiledHeader="0"
+        WarningLevel="4"
+        WarnAsError="true"
+        DisableSpecificWarnings="4100;4189;4251"
+        DebugInformationFormat="4"/>
+      <Tool
+        Name="VCLinkerTool"
+        AdditionalDependencies="..\lib\libzbar-0.lib kernel32.lib &quot;C:\Program Files\ImageMagick-6.5.4-Q16\lib\CORE_RL_Magick++_.lib&quot; $(NoInherit)"
+        ShowProgress="0"
+        GenerateDebugInformation="true"
+        SubSystem="1"
+        TargetMachine="1"/>
+    </Configuration>
+  </Configurations>
+
+  <Files>
+    <Filter
+      Name="Source Files"
+      Filter="cpp">
+      <File RelativePath=".\scan_image.cpp"/>
+    </Filter>
+  </Files>
+
+</VisualStudioProject>
diff --git a/examples/sha1sum b/examples/sha1sum
new file mode 100644
index 0000000..72cab2e
--- /dev/null
+++ b/examples/sha1sum
@@ -0,0 +1,19 @@
+a56811d078ea5cfac9be5deb4b6796177763e152  zbarimg codabar.png
+cc53bf34878f769fc3611020c11e572f2853bd2a  zbarimg code-128.png
+7537d593ea42393a43bc0eda0a896c0e31017dd8  zbarimg code-39.png
+f8f55b828eb7d0400f300be021d29293bd4a3191  zbarimg code-93.png
+aebbdbed0b32d7fd72f1245e3fb384822d492062  zbarimg databar.png
+9e245874d3229a575eabfdba1c668369c55960e3  zbarimg databar-exp.png
+53429fc04dfcf674349e2db6cfbaf73e301fc3dc  zbarimg ean-13.png
+4095418b74efbb026dd730543558fefdda46f5b9  zbarimg ean-8.png
+5501245dbba21c153f690787fc97ab50c973b846  zbarimg i2-5.png
+b350ca7efad7a50c5ac082d5c683a8e8d8d380a7  zbarimg qr-code.png
+84c0ce7072e2227073dc8bd1e5f4518d8f42ae3d  zbarimg sqcode1-generated.png
+84c0ce7072e2227073dc8bd1e5f4518d8f42ae3d  zbarimg sqcode1-scanned.png
+5ab2b518e2c9d827cedc5825d2e3c9646d43713a  zbarimg -Sean2.enable ean-2.png
+668fef8cb9caac34df8cb8564c2cde62e4af5e65  zbarimg -Sean5.enable ean-5.png
+b567e550216fe24f7652f683146365a9fe7ee867  zbarimg -Sisbn10.enable ean-13.png
+d0f37aa076d42c270f7231c5490beea5605e2ba0  zbarimg -Sisbn13.enable ean-13.png
+3f041225df3b8364b5fd0daf9cf402e8a4731f9b  zbarimg -Supca.enable code-upc-a.png
+b350ca7efad7a50c5ac082d5c683a8e8d8d380a7  zbarimg -Stest-inverted qr-code-inverted.png
+df896e459e47a7d392031a7d4962722a143e276b  zbarimg --raw --oneshot -Sbinary qr-code-binary.png
diff --git a/examples/sqcode1-generated.png b/examples/sqcode1-generated.png
new file mode 100644
index 0000000..323c45b
--- /dev/null
+++ b/examples/sqcode1-generated.png
diff --git a/examples/sqcode1-scanned.png b/examples/sqcode1-scanned.png
new file mode 100644
index 0000000..af831b5
--- /dev/null
+++ b/examples/sqcode1-scanned.png
diff --git a/examples/upcrpc.pl b/examples/upcrpc.pl
new file mode 100755
index 0000000..5b0e10e
--- /dev/null
+++ b/examples/upcrpc.pl
@@ -0,0 +1,46 @@
+#!/usr/bin/perl
+use warnings;
+use strict;
+use Frontier::Client;
+use Data::Dumper;
+my $s = Frontier::Client->new('url' => 'http://www.upcdatabase.com/rpc');
+
+$| = 1; # autoflush
+
+foreach (@ARGV) {
+  lookup($_);
+}
+if(!-t) {
+  while(1) {
+    my $decode = <STDIN>;
+    last unless(defined($decode));
+    chomp($decode);
+    lookup($decode);
+  }
+}
+
+sub lookup {
+  my $decode = shift;
+  if($decode =~ m[^(EAN-13:|UPC-A:)?(\d{11,13})$] &&
+    ($1 && $1 eq "UPC-A:") || ($2 && length($2) > 11)) {
+    my $ean = $2;
+    $ean = "0" . $ean
+      if($1 && $1 eq "UPC-A:");
+    $ean = $s->call('calculateCheckDigit', $ean . "C")
+      if(length($ean) == 12);
+    print("[$decode] ");
+    my $result = $s->call('lookupEAN', $s->string($ean));
+    if(ref($result)) {
+      print((!$result->{found} ||
+            (ref($result->{found}) && !$result->{found}->value()))
+            ? "not found\n"
+            : "$result->{description}\n")
+    }
+    else {
+      print("$result\n");
+    }
+  }
+  else {
+    print("$decode\n");
+  }
+}
diff --git a/examples/upcrpc.py b/examples/upcrpc.py
new file mode 100755
index 0000000..5b0cd13
--- /dev/null
+++ b/examples/upcrpc.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+
+from __future__ import print_function
+
+try:
+    from xmlrpc.client import ServerProxy
+except:
+    from xmlrpclib import ServerProxy
+
+import sys, re
+
+server = ServerProxy("http://www.upcdatabase.com/rpc")
+ean_re = re.compile(r'^(UPC-A:|EAN-13:)?(\d{11,13})$', re.M)
+
+def lookup(decode):
+    match = ean_re.search(decode)
+    if match is None:
+        print(decode, end=" ")
+        return
+    ean = match.group(2)
+    if match.group(1) == "UPC-A:":
+        ean = "0" + ean;
+    elif len(ean) < 12:
+        print(decode, end=' ')
+        return
+    if len(ean) == 12:
+        ean = server.calculateCheckDigit(ean + "C")
+    print("[" + match.group(1) + ean + "]", end=' ')
+    result = server.lookupEAN(ean)
+    if isinstance(result, dict):
+        if "found" not in result or not result["found"] or \
+               "description" not in result:
+            print("not found")
+        else:
+            print(result["description"])
+    else:
+        print(str(result))
+    sys.stdout.flush()
+
+if __name__ == "__main__":
+    del sys.argv[0]
+    if len(sys.argv):
+        for decode in sys.argv:
+            lookup(decode)
+    if not sys.stdin.isatty():
+        while 1:
+            decode = sys.stdin.readline()
+            if not decode:
+                break
+            lookup(decode)