--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file trgt_magickpp.cpp
+** \brief Magick++ Target Module
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2007, 2008 Chris Moore
+**
+** This package 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 package 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.
+** \endlegal
+**
+** === N O T E S ===========================================================
+**
+** ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#define SYNFIG_TARGET
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ETL/misc>
+#include "trgt_magickpp.h"
+
+#endif
+
+/* === M A C R O S ========================================================= */
+
+using namespace synfig;
+using namespace std;
+using namespace etl;
+
+/* === G L O B A L S ======================================================= */
+
+SYNFIG_TARGET_INIT(magickpp_trgt);
+SYNFIG_TARGET_SET_NAME(magickpp_trgt,"magick++");
+SYNFIG_TARGET_SET_EXT(magickpp_trgt,"gif");
+SYNFIG_TARGET_SET_VERSION(magickpp_trgt,"0.1");
+SYNFIG_TARGET_SET_CVS_ID(magickpp_trgt,"$Id$");
+
+/* === M E T H O D S ======================================================= */
+
+template <class Container>
+MagickLib::Image* copy_image_list(Container& container)
+{
+ typedef typename Container::iterator Iter;
+ MagickLib::Image* previous = 0;
+ MagickLib::Image* first = NULL;
+ MagickLib::ExceptionInfo exceptionInfo;
+ MagickLib::GetExceptionInfo(&exceptionInfo);
+ for (Iter iter = container.begin(); iter != container.end(); ++iter)
+ {
+ MagickLib::Image* current;
+
+ try
+ {
+ current = CloneImage(iter->image(), 0, 0, Magick::MagickTrue, &exceptionInfo);
+
+ if (!first) first = current;
+
+ current->previous = previous;
+ current->next = 0;
+
+ if ( previous != 0) previous->next = current;
+ previous = current;
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+
+ return first;
+}
+
+magickpp_trgt::~magickpp_trgt()
+{
+ MagickLib::ExceptionInfo exceptionInfo;
+ MagickLib::GetExceptionInfo(&exceptionInfo);
+
+ try
+ {
+ bool multiple_images = images.size() != 1;
+ bool can_adjoin = false;
+
+ if (multiple_images)
+ {
+ // check whether this file format supports multiple-image files
+ Magick::Image image(*(images.begin()));
+ image.fileName(filename);
+ try
+ {
+ SetImageInfo(image.imageInfo(),Magick::MagickTrue,&exceptionInfo);
+ can_adjoin = image.adjoin();
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+
+ // the file type is now in image.imageInfo()->magick and
+ // image.adjoin() tells us whether we can write to a single file
+ if (can_adjoin)
+ {
+ synfig::info("joining images");
+ unsigned int delay = round_to_int(100.0 / desc.get_frame_rate());
+ for_each(images.begin(), images.end(), Magick::animationDelayImage(delay));
+
+ // optimize the images (only write the pixels that change from frame to frame
+#ifdef HAVE_MAGICK_OPTIMIZE
+ // make a completely new image list
+ // this is required because:
+ // RemoveDuplicateLayers wants a linked list of images, and removes some of them
+ // when it removes an image, it invalidates it using DeleteImageFromList, but we still have it in our container
+ // when we destroy our container, the image is re-freed, failing an assertion
+
+ synfig::info("copying image list");
+ MagickLib::Image *image_list = copy_image_list(images);
+
+ synfig::info("clearing old image list");
+ images.clear();
+
+ if (!getenv("SYNFIG_DISABLE_REMOVE_DUPS"))
+ {
+ synfig::info("removing duplicate frames");
+ try
+ {
+ RemoveDuplicateLayers(&image_list, &exceptionInfo);
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+
+ if (!getenv("SYNFIG_DISABLE_OPTIMIZE"))
+ {
+ synfig::info("optimizing layers");
+ try
+ {
+ image_list = OptimizeImageLayers(image_list,&exceptionInfo);
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+
+ if (!getenv("SYNFIG_DISABLE_OPTIMIZE_TRANS"))
+ {
+ synfig::info("optimizing layer transparency");
+ try
+ {
+ OptimizeImageTransparency(image_list,&exceptionInfo);
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+
+ synfig::info("recreating image list");
+ insertImages(&images, image_list);
+#else
+ synfig::info("not optimizing images");
+ // DeconstructImages is available in ImageMagic 6.2.* but it doesn't take
+ // the 'dispose' method into account, so for frames with transparency where
+ // nothing is moving, we end up with objects disappearing when they shouldn't
+
+ // linkImages(images.begin(), images.end());
+ // MagickLib::Image* new_images = DeconstructImages(images.begin()->image(),&exceptionInfo);
+ // unlinkImages(images.begin(), images.end());
+ // images.clear();
+ // insertImages(&images, new_images);
+#endif
+ }
+ else if (multiple_images)
+ {
+ // if we can't write multiple images to a file of this type,
+ // include '%04d' in the filename, so the files will be numbered
+ // with a fixed width, '0'-padded number
+ synfig::info("can't join images of this type - numbering instead");
+ filename = (filename_sans_extension(filename) + ".%04d" + filename_extension(filename));
+ }
+
+ synfig::info("writing %d image%s to %s", images.size(), images.size() == 1 ? "" : "s", filename.c_str());
+ try
+ {
+ Magick::writeImages(images.begin(), images.end(), filename);
+ synfig::info("done");
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ }
+ catch(Magick::Warning warning) {
+ synfig::warning("exception '%s'", warning.what());
+ }
+ catch(Magick::Error error) {
+ synfig::error("exception '%s'", error.what());
+ }
+ catch(...) {
+ synfig::error("unknown exception");
+ }
+
+ if (buffer1 != NULL) delete [] buffer1;
+ if (buffer2 != NULL) delete [] buffer2;
+ if (color_buffer != NULL) delete [] color_buffer;
+}
+
+bool
+magickpp_trgt::set_rend_desc(RendDesc *given_desc)
+{
+ desc = *given_desc;
+ return true;
+}
+
+bool
+magickpp_trgt::init()
+{
+ width = desc.get_w();
+ height = desc.get_h();
+
+ start_pointer = NULL;
+
+ buffer1 = new unsigned char[4*width*height];
+ if (buffer1 == NULL)
+ return false;
+
+ buffer2 = new unsigned char[4*width*height];
+ if (buffer2 == NULL)
+ {
+ delete [] buffer1;
+ return false;
+ }
+
+ color_buffer = new Color[width];
+ if (color_buffer == NULL)
+ {
+ delete [] buffer1;
+ delete [] buffer2;
+ return false;
+ }
+
+ return true;
+}
+
+void
+magickpp_trgt::end_frame()
+{
+ Magick::Image image(width, height, "RGBA", Magick::CharPixel, start_pointer);
+ if (transparent && images.begin() != images.end())
+ (images.end()-1)->gifDisposeMethod(Magick::BackgroundDispose);
+ images.push_back(image);
+}
+
+bool
+magickpp_trgt::start_frame(synfig::ProgressCallback *callback __attribute__ ((unused)))
+{
+ previous_buffer_pointer = start_pointer;
+
+ if (start_pointer == buffer1)
+ start_pointer = buffer_pointer = buffer2;
+ else
+ start_pointer = buffer_pointer = buffer1;
+
+ transparent = false;
+ return true;
+}
+
+Color*
+magickpp_trgt::start_scanline(int scanline __attribute__ ((unused)))
+{
+ return color_buffer;
+}
+
+bool
+magickpp_trgt::end_scanline()
+{
+ convert_color_format(buffer_pointer, color_buffer,
+ width, PF_RGB|PF_A, gamma());
+
+ if (!transparent)
+ for (int i = 0; i < width; i++)
+ if (previous_buffer_pointer && // this isn't the first frame
+ buffer_pointer[i*4 + 3] < 128 && // our pixel is transparent
+ !(previous_buffer_pointer[i*4 + 3] < 128)) // the previous frame's pixel wasn't
+ {
+ transparent = true;
+ break;
+ }
+
+ buffer_pointer += 4 * width;
+
+ if (previous_buffer_pointer)
+ previous_buffer_pointer += 4 * width;
+
+ return true;
+}
projects / synfig.git / blobdiff