33145a024b
This commit adds support for Epson scanners. It packages the iscan application, the epkowa SANE backend, iscan-data, as well as the scanner-specific plugin for the GT S650 (and by extension V19 and V39). More scanner plugins may be added later when people request them. iscan is unfree because it ships with a binary blob. sane-epkowa is free, however, same as iscan-data. Scanner plugins are unfree again. All unfree components are covered by the AVASYS license. Not only does it allow distribution, it's also almost a free license. However, it forbids reverse engineering the binary blobs. The binary blobs make this x86/amd64-only packages. The epkowa backend itself could technically be compiled for other architectures, but it's not evident that it's worth the time. Most modern scanners need a proprietary plugin.
48 lines
1.4 KiB
Diff
48 lines
1.4 KiB
Diff
--- lib/pngstream.cc 2011-12-01 02:30:53.000000000 +0100
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+++ lib/pngstream.cc 2012-02-06 03:06:22.000000000 +0100
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@@ -83,7 +83,12 @@
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#if HAVE_PNG_H
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set_error_handler (_png, _info);
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+/* when not interlacing (ie, only one pass), number of rows is image height: _v_sz */
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+#if PNG_LIBPNG_VER > 10499
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+ if (!_footer && _v_sz == lib->get_current_row_number(_png))
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+#else
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if (_header && !_footer && _png->num_rows == _png->flush_rows)
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+#endif
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{
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lib->write_end (_png, _info);
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_footer = true;
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@@ -167,6 +172,9 @@
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funcsym (write_row);
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funcsym (write_flush);
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funcsym (write_end);
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+#if PNG_LIBPNG_VER > 10499
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+ funcsym (get_current_row_number);
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+#endif
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if (lib->access_version_number
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&& lib->create_write_struct
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@@ -176,6 +184,9 @@
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&& lib->set_IHDR
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&& lib->set_pHYs
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&& lib->set_invert_mono
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+#if PNG_LIBPNG_VER > 10499
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+ && lib->get_current_row_number
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+#endif
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&& lib->write_info
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&& lib->write_row
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&& lib->write_flush
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--- lib/pngstream.hh 2011-12-01 02:30:53.000000000 +0100
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+++ lib/pngstream.hh 2012-02-06 03:09:09.000000000 +0100
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@@ -108,6 +108,10 @@
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png_structp);
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fundecl (void, write_end,
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png_structp, png_infop);
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+#if PNG_LIBPNG_VER > 10499
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+ fundecl (png_uint_32, get_current_row_number,
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+ png_structp);
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+#endif
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#endif /* HAVE_PNG_H */
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};
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static png_lib_handle *lib;
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