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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import com.wudsn.ide.gfx.model.RBGUtility;
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/**
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* The valid bit pattern combinations from the two images are: (0,0)=0, (0,1)=1,
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* (1,1)=2, (1,2)=3, (2,2)=4, (2,3)=5, (3,3)=6
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*/
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public class LinearBitMapINTConverter extends LinearBitMapConverter {
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public LinearBitMapINTConverter() {
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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 < 10) {
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return false;
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}
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if (bytes[0] != (byte) 'I'
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|| bytes[1] != (byte) 'N'
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|| bytes[2] != (byte) 'T'
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|| bytes[3] != (byte) '9'
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|| bytes[4] != (byte) '5'
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|| bytes[5] != (byte) 'a'
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|| bytes[6] == (byte) 0
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|| (bytes[6] & 0xff) > 40
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|| bytes[7] == (byte) 0
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|| (bytes[7] & 0xff) > 239
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|| bytes[8] != (byte) 0x0f
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|| bytes[9] != (byte) 0x2b
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|| 18 + (bytes[6] & 0xff) * (bytes[7] & 0xff) * 2 != bytes.length) {
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return false;
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}
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return true;
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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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int rows;
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int columns;
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rows = bytes[7] & 0xff;
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columns = bytes[6] & 0xff;
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PaletteMapper paletteMapper = new Atari8BitPaletteMapper();
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RGB[] paletteColors = new RGB[16];
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RGB[] palette1Colors = new RGB[4];
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RGB[] palette2Colors = new RGB[4];
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palette1Colors[0] = paletteMapper.getRGB(bytes[10] & 0xfe);
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palette1Colors[1] = paletteMapper.getRGB(bytes[11] & 0xfe);
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palette1Colors[2] = paletteMapper.getRGB(bytes[12] & 0xfe);
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palette1Colors[3] = paletteMapper.getRGB(bytes[13] & 0xfe);
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palette2Colors[0] = paletteMapper.getRGB(bytes[14] & 0xfe);
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palette2Colors[1] = paletteMapper.getRGB(bytes[15] & 0xfe);
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palette2Colors[2] = paletteMapper.getRGB(bytes[16] & 0xfe);
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palette2Colors[3] = paletteMapper.getRGB(bytes[17] & 0xfe);
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// Compute mixed interlace colors.
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for (int x1 = 0; x1 < 4; x1++) {
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for (int x2 = 0; x2 < 4; x2++) {
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paletteColors[x1 * 4 + x2] = RBGUtility.combineRGB(
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palette1Colors[x1], palette2Colors[x2]);
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}
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}
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setImageSizeAndPalette(data, columns, rows, 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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int offset1 = 18;
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int offset2 = offset1 + data.getParameters().getRows()
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* data.getParameters().getColumns();
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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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int b1 = data.getSourceFileByte(BIT_MAP_FILE, offset1++);
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int b2 = data.getSourceFileByte(BIT_MAP_FILE, offset2++);
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if (b1 < 0 || b2 < 0) {
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return true;
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}
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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 color1 = (b1 & mask_2bit[x2]) >>> shift_2bit[x2];
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int color2 = (b2 & mask_2bit[x2]) >>> shift_2bit[x2];
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int color = 4 * color1 + color2;
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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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