+++ /dev/null
-/*
- Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
-
- This file is part of DCP-o-matic.
-
- DCP-o-matic 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.
-
- DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-#include "magick_image_proxy.h"
-#include "cross.h"
-#include "exceptions.h"
-#include "dcpomatic_socket.h"
-#include "image.h"
-#include "compose.hpp"
-#include <Magick++.h>
-#include <libxml++/libxml++.h>
-#include <iostream>
-
-#include "i18n.h"
-
-using std::string;
-using std::cout;
-using std::pair;
-using std::make_pair;
-using boost::shared_ptr;
-using boost::optional;
-using boost::dynamic_pointer_cast;
-
-MagickImageProxy::MagickImageProxy (boost::filesystem::path path)
- : _path (path)
-{
- /* 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, errno, true);
- }
-
- 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)
-{
- uint32_t const size = socket->read_uint32 ();
- uint8_t* data = new uint8_t[size];
- socket->read (data, size);
- _blob.update (data, size);
- delete[] data;
-}
-
-pair<shared_ptr<Image>, int>
-MagickImageProxy::image (optional<dcp::NoteHandler>, optional<dcp::Size>) const
-{
- boost::mutex::scoped_lock lm (_mutex);
-
- if (_image) {
- return make_pair (_image, 0);
- }
-
- Magick::Image* magick_image = 0;
- string error;
- try {
- magick_image = new Magick::Image (_blob);
- } catch (Magick::Exception& e) {
- error = e.what ();
- }
-
- if (!magick_image) {
- /* ImageMagick cannot auto-detect Targa files, it seems, so try here with an
- explicit format. I can't find it documented that passing a (0, 0) geometry
- is allowed, but it seems to work.
- */
- try {
- magick_image = new Magick::Image (_blob, Magick::Geometry (0, 0), "TGA");
- } catch (...) {
-
- }
- }
-
- if (!magick_image) {
- /* If we failed both an auto-detect and a forced-Targa we give the error from
- the auto-detect.
- */
- if (_path) {
- throw DecodeError (String::compose (_("Could not decode image file %1 (%2)"), _path->string(), error));
- } else {
- throw DecodeError (String::compose (_("Could not decode image file (%1)"), error));
- }
- }
-
- unsigned char const * data = static_cast<unsigned char const *>(_blob.data());
- if (data[801] == 1 || magick_image->image()->colorspace == Magick::sRGBColorspace) {
- /* Either:
- 1. The transfer characteristic in this file is "printing density"; in this case ImageMagick sets the colour space
- to LogColorspace, or
- 2. The file is sRGB.
-
- Empirically we find that in these cases if we subsequently call colorSpace(Magick::RGBColorspace) the colours
- are very wrong. To prevent this, set the image colour space to RGB to stop the ::colorSpace call below doing
- anything. See #1123 and others.
- */
- magick_image->image()->colorspace = Magick::RGBColorspace;
- }
-
- magick_image->colorSpace(Magick::RGBColorspace);
-
- dcp::Size size (magick_image->columns(), magick_image->rows());
-
- _image.reset (new Image (AV_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) {
-#ifdef DCPOMATIC_HAVE_MAGICKCORE_NAMESPACE
- using namespace MagickCore;
-#endif
-#ifdef DCPOMATIC_HAVE_MAGICKLIB_NAMESPACE
- using namespace MagickLib;
-#endif
- magick_image->write (0, i, size.width, 1, "RGB", CharPixel, p);
- p += _image->stride()[0];
- }
-
- delete magick_image;
-
- return make_pair (_image, 0);
-}
-
-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 ());
-}
-
-bool
-MagickImageProxy::same (shared_ptr<const ImageProxy> other) const
-{
- shared_ptr<const MagickImageProxy> mp = dynamic_pointer_cast<const MagickImageProxy> (other);
- if (!mp) {
- return false;
- }
-
- if (_blob.length() != mp->_blob.length()) {
- return false;
- }
-
- return memcmp (_blob.data(), mp->_blob.data(), _blob.length()) == 0;
-}
-
-AVPixelFormat
-MagickImageProxy::pixel_format () const
-{
- return AV_PIX_FMT_RGB24;
-}
-
-size_t
-MagickImageProxy::memory_used () const
-{
- size_t m = _blob.length();
- if (_image) {
- m += _image->memory_used();
- }
- return m;
-}
projects / dcpomatic.git / blobdiff