mirror of
https://github.com/aseprite/aseprite.git
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120 lines
3.0 KiB
C++
120 lines
3.0 KiB
C++
/* Aseprite
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* Copyright (C) 2001-2013 David Capello
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "raster/dirty_io.h"
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#include "base/serialization.h"
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#include "base/unique_ptr.h"
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#include "raster/dirty.h"
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#include <iostream>
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namespace raster {
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using namespace base::serialization;
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using namespace base::serialization::little_endian;
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// Serialized Dirty data:
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//
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// BYTE image type
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// WORD[4] x1, y1, x2, y2
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// WORD rows
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// for each row
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// WORD[2] y, columns
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// for each column
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// WORD[2] x, w
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// for each pixel ("w" times)
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// BYTE[4] for RGB images, or
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// BYTE[2] for Grayscale images, or
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// BYTE for Indexed images
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void write_dirty(std::ostream& os, Dirty* dirty)
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{
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write8(os, dirty->pixelFormat());
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write16(os, dirty->x1());
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write16(os, dirty->y1());
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write16(os, dirty->x2());
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write16(os, dirty->y2());
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write16(os, dirty->getRowsCount());
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for (int v=0; v<dirty->getRowsCount(); v++) {
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const Dirty::Row& row = dirty->getRow(v);
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write16(os, row.y);
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write16(os, row.cols.size());
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for (size_t u=0; u<row.cols.size(); u++) {
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write16(os, row.cols[u]->x);
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write16(os, row.cols[u]->w);
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size_t size = dirty->getLineSize(row.cols[u]->w);
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os.write((char*)&row.cols[u]->data[0], size);
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}
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}
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}
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Dirty* read_dirty(std::istream& is)
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{
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int u, v, x, y, w;
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int pixelFormat = read8(is);
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int x1 = read16(is);
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int y1 = read16(is);
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int x2 = read16(is);
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int y2 = read16(is);
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base::UniquePtr<Dirty> dirty(new Dirty(static_cast<PixelFormat>(pixelFormat), x1, y1, x2, y2));
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int noRows = read16(is);
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if (noRows > 0) {
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dirty->m_rows.resize(noRows);
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for (v=0; v<dirty->getRowsCount(); v++) {
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y = read16(is);
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base::UniquePtr<Dirty::Row> row(new Dirty::Row(y));
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int noCols = read16(is);
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row->cols.resize(noCols);
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for (u=0; u<noCols; u++) {
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x = read16(is);
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w = read16(is);
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base::UniquePtr<Dirty::Col> col(new Dirty::Col(x, w));
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int size = dirty->getLineSize(col->w);
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ASSERT(size > 0);
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col->data.resize(size);
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is.read((char*)&col->data[0], size);
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row->cols[u] = col.release();
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}
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dirty->m_rows[v] = row.release();
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}
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}
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return dirty.release();
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}
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}
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