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require 'formula'
class Jbig2enc < Formula
homepage 'https://github.com/agl/jbig2enc'
revision 1
stable do
url 'https://github.com/agl/jbig2enc/archive/0.28-dist.tar.gz'
sha1 'd2d73f732168eeb6fa18962dbe7743337363c3b6'
version '0.28'
# Patch data from https://github.com/agl/jbig2enc/commit/53ce5fe7e73d7ed95c9e12b52dd4984723f865fa
patch :DATA
end
head do
url 'https://github.com/agl/jbig2enc.git'
depends_on "autoconf" => :build
depends_on "automake" => :build
depends_on "libtool" => :build
end
depends_on 'leptonica'
def install
system "./autogen.sh" if build.head?
system "./configure", "--prefix=#{prefix}"
system "make install"
end
end
__END__
diff --git a/configure.ac b/configure.ac
index fe37c22..753a607 100644
--- a/configure.ac
+++ b/configure.ac
@@ -55,6 +55,7 @@ AC_CHECK_LIB([lept], [findFileFormatStream], [], [
echo "Error! Leptonica not detected."
exit -1
])
+AC_CHECK_FUNCS(expandBinaryPower2Low,,)
# test for function - it should detect leptonica dependecies
# Check for possible dependancies of leptonica.
diff --git a/src/jbig2.cc b/src/jbig2.cc
index e10f042..515c1ef 100644
--- a/src/jbig2.cc
+++ b/src/jbig2.cc
@@ -130,11 +130,16 @@ segment_image(PIX *pixb, PIX *piximg) {
// input color image, so we have to do it this way...
// is there a better way?
// PIX *pixd = pixExpandBinary(pixd4, 4);
- PIX *pixd = pixCreate(piximg->w, piximg->h, 1);
- pixCopyResolution(pixd, piximg);
- if (verbose) pixInfo(pixd, "mask image: ");
- expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
+ PIX *pixd;
+#ifdef HAVE_EXPANDBINARYPOWER2LOW
+ pixd = pixCreate(piximg->w, piximg->h, 1);
+ pixCopyResolution(pixd, piximg);
+ expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
pixd4->data, pixd4->w, pixd4->h, pixd4->wpl, 4);
+#else
+ pixd = pixExpandBinaryPower2(pixd4, 4);
+#endif
+ if (verbose) pixInfo(pixd, "mask image: ");
pixDestroy(&pixd4);
pixDestroy(&pixsf4);
|
