mirror of
https://github.com/peterdell/wudsn-ide.git
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148 lines
4.6 KiB
Java
148 lines
4.6 KiB
Java
/**
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* Copyright (C) 2009 - 2014 <a href="http://www.wudsn.com" target="_top">Peter Dell</a>
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*
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* This file is part of WUDSN IDE.
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*
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* WUDSN IDE 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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* WUDSN IDE 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 WUDSN IDE. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.wudsn.ide.gfx.converter.atari8bit;
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import org.eclipse.swt.graphics.RGB;
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import com.wudsn.ide.gfx.converter.FilesConverterData;
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import com.wudsn.ide.gfx.converter.PaletteMapper;
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import com.wudsn.ide.gfx.converter.generic.LinearBitMapConverter;
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import com.wudsn.ide.gfx.model.Palette;
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public class LinearBitMapKoalaConverter extends LinearBitMapConverter {
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public LinearBitMapKoalaConverter() {
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}
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@Override
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public boolean canConvertToImage(byte[] bytes) {
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if (bytes == null) {
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throw new IllegalArgumentException(
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"Parameter 'bytes' must not be null.");
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}
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if (bytes.length < 22) {
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return false;
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}
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if ((bytes[0] != (byte) 0xff || bytes[1] != (byte) 0x80
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|| bytes[2] != (byte) 0xc9 || bytes[3] != (byte) 0xc7
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|| bytes[4] < (byte) 0x1a || (bytes[4] & 0xff) >= bytes.length
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|| bytes[5] != (byte) 0 || bytes[6] != (byte) 1
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|| bytes[8] != (byte) 0x0e || bytes[9] != (byte) 0
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|| bytes[10] != (byte) 40 || bytes[11] != (byte) 0
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|| bytes[12] != (byte) 192 || bytes[20] != (byte) 0 || bytes[21] != (byte) 0)) {
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return false;
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}
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byte[] unpackedImage = new byte[7684];
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boolean result = Atari8BitUtility.unpackKoala(bytes,
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(bytes[4] & 0xff) + 1, bytes.length - (bytes[4] & 0xff) - 1,
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bytes[7] & 0xff, unpackedImage);
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return result;
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}
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@Override
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public void convertToImageSizeAndPalette(FilesConverterData data,
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byte[] bytes) {
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if (data == null) {
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throw new IllegalArgumentException(
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"Parameter 'data' must not be null.");
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}
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if (bytes == null) {
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throw new IllegalArgumentException(
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"Parameter 'bytes' must not be null.");
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}
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byte[] unpackedImage = new byte[7684];
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boolean result = Atari8BitUtility.unpackKoala(bytes,
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(bytes[4] & 0xff) + 1, bytes.length - (bytes[4] & 0xff) - 1,
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bytes[7] & 0xff, unpackedImage);
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if (!result) {
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throw new IllegalStateException("canConverterToImage() not called");
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}
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unpackedImage[7680] = bytes[17];
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unpackedImage[7681] = bytes[13];
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unpackedImage[7682] = bytes[14];
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unpackedImage[7683] = bytes[15];
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PaletteMapper paletteMapper = new Atari8BitPaletteMapper();
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RGB[] paletteColors = new RGB[4];
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paletteColors[0] = paletteMapper.getRGB(unpackedImage[7680] & 0xfe);
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paletteColors[1] = paletteMapper.getRGB(unpackedImage[7681] & 0xfe);
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paletteColors[2] = paletteMapper.getRGB(unpackedImage[7682] & 0xfe);
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paletteColors[3] = paletteMapper.getRGB(unpackedImage[7683] & 0xfe);
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setImageSizeAndPalette(data, 40, 192, Palette.MULTI_MANUAL,
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paletteColors);
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}
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@Override
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public void convertToImageDataSize(FilesConverterData data) {
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data.setImageDataWidth(data.getParameters().getColumns() * 4);
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data.setImageDataHeight(data.getParameters().getRows());
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}
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@Override
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public boolean convertToImageData(FilesConverterData data) {
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if (data == null) {
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throw new IllegalArgumentException(
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"Parameter 'data' must not be null.");
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}
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byte[] bytes = data.getSourceFileBytes(BIT_MAP_FILE);
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if (bytes == null || bytes.length < 8) {
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return false;
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}
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byte[] unpackedImage = new byte[7684];
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boolean result;
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result = Atari8BitUtility.unpackKoala(bytes, (bytes[4] & 0xff) + 1,
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bytes.length - (bytes[4] & 0xff) - 1, bytes[7] & 0xff,
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unpackedImage);
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if (!result) {
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return false;
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}
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int offset = 0;
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int xpixels = 4;
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for (int y1 = 0; y1 < data.getParameters().getRows(); y1++) {
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for (int x1 = 0; x1 < data.getParameters().getColumns(); x1++) {
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if (offset >= unpackedImage.length) {
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return true;
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}
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int b = unpackedImage[offset++] & 0xff;
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for (int x2 = 0; x2 < 4; x2++) {
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int x = x1 * xpixels + x2;
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int color = (b & mask_2bit[x2]) >>> shift_2bit[x2];
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data.setPalettePixel(x, y1, color);
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}
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}
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}
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return true;
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}
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}
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