Aegisub/aegisub/src/export_fixstyle.cpp
Thomas Goyne d5aae26d83 Use boost::flyweight to intern the wxString members of AssDialogue
100 no-op non-amend commits on a subtitle file with 6689 dialogue lines,
with the undo limit set to 100:

Without flyweight:
	No video open:
		Initial memory usage: 30.6 MB
		Final memory usage: 498.0 MB
		Elapsed time: 6.3 seconds
	Video open, using libass:
		Initial memory usage: 54.3 MB
		Final memory usage: 653.3 MB
		Elapsed time: 23.7 seconds

With flyweight:
	No video open:
		Initial memory usage: 26.0 MB
		Final memory usage: 104.5 MB
		Elapsed time: 3.0 seconds
	Video open, using libass:
		Initial memory usage: 46.7 MB
		Final memory usage: 251.8 MB
		Elapsed time: 13.0 seconds

No video open:
	Memory usage: -79%
	Time: -52%
Video open:
	Memory usage: -61.5%
	Time: -45%

100 no-op amend commits on a line in the middle of a subtitle file with
6689 dialogue lines, with video open:

Without flyweight:
	Initial memory usage: 48.2 MB
	Final memory usage: 182.3 MB
	Elapsed time: 22.3 seconds

With flyweight:
	Initial memory usage: 39.8 MB
	Final memory usage: 165.8 MB
	Elapsed time: 13.8 seconds

Note: The large jump in memory usage here is due to that the benchmark
is blocking the main thread, so at the end there are ~100 video frames
waiting to be displayed.
2012-12-05 18:43:44 -08:00

61 lines
2.4 KiB
C++

// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
// * Neither the name of the Aegisub Group nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Aegisub Project http://www.aegisub.org/
/// @file export_fixstyle.cpp
/// @brief Fix Styles export filter
/// @ingroup export
///
#include "config.h"
#include "export_fixstyle.h"
#include <algorithm>
#include <functional>
#include "ass_file.h"
#include "ass_dialogue.h"
#include <libaegisub/of_type_adaptor.h>
AssFixStylesFilter::AssFixStylesFilter()
: AssExportFilter(_("Fix Styles"), _("Fixes styles by replacing any style that isn't available on file with Default."), -5000, true)
{
}
void AssFixStylesFilter::ProcessSubs(AssFile *subs, wxWindow *) {
wxArrayString styles = subs->GetStyles();
for_each(styles.begin(), styles.end(), std::mem_fun_ref(&wxString::MakeLower));
styles.Sort();
for (auto diag : subs->Line | agi::of_type<AssDialogue>()) {
if (!std::binary_search(styles.begin(), styles.end(), diag->Style.get().Lower()))
diag->Style = "Default";
}
}