Split up image_proxy.{cc,h}

1 files changed, 114 insertions, 0 deletions

diff --git a/src/lib/magick_image_proxy.cc b/src/lib/magick_image_proxy.cc
new file mode 100644
index 000000000..0908ed921
--- /dev/null
+++ b/src/lib/magick_image_proxy.cc
@@ -0,0 +1,114 @@
+/*
+    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <Magick++.h>
+#include "magick_image_proxy.h"
+#include "cross.h"
+#include "exceptions.h"
+#include "util.h"
+#include "log.h"
+#include "image.h"
+#include "log.h"
+
+#include "i18n.h"
+
+#define LOG_TIMING(...) _log->microsecond_log (String::compose (__VA_ARGS__), Log::TYPE_TIMING);
+
+using boost::shared_ptr;
+
+MagickImageProxy::MagickImageProxy (boost::filesystem::path path, shared_ptr<Log> log)
+	: ImageProxy (log)
+{
+	/* Read the file into a Blob */
+	
+	boost::uintmax_t const size = boost::filesystem::file_size (path);
+	FILE* f = fopen_boost (path, "rb");
+	if (!f) {
+		throw OpenFileError (path);
+	}
+		
+	uint8_t* data = new uint8_t[size];
+	if (fread (data, 1, size, f) != size) {
+		delete[] data;
+		throw ReadFileError (path);
+	}
+	
+	fclose (f);
+	_blob.update (data, size);
+	delete[] data;
+}
+
+MagickImageProxy::MagickImageProxy (shared_ptr<cxml::Node>, shared_ptr<Socket> socket, shared_ptr<Log> log)
+	: ImageProxy (log)
+{
+	uint32_t const size = socket->read_uint32 ();
+	uint8_t* data = new uint8_t[size];
+	socket->read (data, size);
+	_blob.update (data, size);
+	delete[] data;
+}
+
+shared_ptr<Image>
+MagickImageProxy::image () const
+{
+	if (_image) {
+		return _image;
+	}
+
+	LOG_TIMING ("[%1] MagickImageProxy begins decode and convert of %2 bytes", boost::this_thread::get_id(), _blob.length());
+
+	Magick::Image* magick_image = 0;
+	try {
+		magick_image = new Magick::Image (_blob);
+	} catch (...) {
+		throw DecodeError (_("Could not decode image file"));
+	}
+
+	dcp::Size size (magick_image->columns(), magick_image->rows());
+	LOG_TIMING ("[%1] MagickImageProxy decode finished", boost::this_thread::get_id ());
+
+	_image.reset (new Image (PIX_FMT_RGB24, size, true));
+
+	/* Write line-by-line here as _image must be aligned, and write() cannot be told about strides */
+	uint8_t* p = _image->data()[0];
+	for (int i = 0; i < size.height; ++i) {
+		using namespace MagickCore;
+		magick_image->write (0, i, size.width, 1, "RGB", CharPixel, p);
+		p += _image->stride()[0];
+	}
+
+	delete magick_image;
+
+	LOG_TIMING ("[%1] MagickImageProxy completes decode and convert of %2 bytes", boost::this_thread::get_id(), _blob.length());
+
+	return _image;
+}
+
+void
+MagickImageProxy::add_metadata (xmlpp::Node* node) const
+{
+	node->add_child("Type")->add_child_text (N_("Magick"));
+}
+
+void
+MagickImageProxy::send_binary (shared_ptr<Socket> socket) const
+{
+	socket->write (_blob.length ());
+	socket->write ((uint8_t *) _blob.data (), _blob.length ());
+}