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annotate dwt/internal/image/OS2BMPFileFormat.d @ 156:969e7de37c3d default tip

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Fixes to get dwt to work with dmd and ldc
author Jacob Carlborg <doob@me.com>
date Wed, 08 Jul 2009 21:56:44 +0200
parents d8635bb48c7c
children
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d8635bb48c7c Merge with SWT 3.5
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 IBM Corporation and others.
0
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwt.internal.image.OS2BMPFileFormat;
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15 import dwt.DWT;
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16 import dwt.graphics.ImageData;
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17 import dwt.graphics.ImageLoader;
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18 import dwt.graphics.PaletteData;
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19 import dwt.graphics.RGB;
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20 import dwt.internal.image.LEDataInputStream;
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21 import dwt.internal.image.FileFormat;
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22 import dwt.dwthelper.ByteArrayOutputStream;
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23 import dwt.dwthelper.utils;
0
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25 import tango.core.Exception;
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27 final class OS2BMPFileFormat : FileFormat {
0
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28 static final int BMPFileHeaderSize = 14;
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29 static final int BMPHeaderFixedSize = 12;
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30 int width, height, bitCount;
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31
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32 override bool isFileFormat(LEDataInputStream stream) {
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33 try {
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34 byte[] header = new byte[18];
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35 stream.read(header);
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36 stream.unread(header);
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37 int infoHeaderSize = (header[14] & 0xFF) | ((header[15] & 0xFF) << 8) | ((header[16] & 0xFF) << 16) | ((header[17] & 0xFF) << 24);
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38 return header[0] is 0x42 && header[1] is 0x4D && infoHeaderSize is BMPHeaderFixedSize;
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39 } catch (Exception e) {
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40 return false;
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41 }
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42 }
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43 byte[] loadData(byte[] infoHeader) {
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44 int stride = (width * bitCount + 7) / 8;
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45 stride = (stride + 3) / 4 * 4; // Round up to 4 byte multiple
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46 byte[] data = loadData(infoHeader, stride);
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47 flipScanLines(data, stride, height);
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48 return data;
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49 }
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50 byte[] loadData(byte[] infoHeader, int stride) {
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51 int dataSize = height * stride;
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52 byte[] data = new byte[dataSize];
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53 try {
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54 if (inputStream.read(data) !is dataSize)
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55 DWT.error(DWT.ERROR_INVALID_IMAGE);
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56 } catch (IOException e) {
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57 DWT.error(DWT.ERROR_IO, e);
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58 }
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59 return data;
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60 }
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61 int[] loadFileHeader() {
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62 int[] header = new int[5];
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63 try {
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64 header[0] = inputStream.readShort();
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65 header[1] = inputStream.readInt();
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66 header[2] = inputStream.readShort();
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67 header[3] = inputStream.readShort();
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68 header[4] = inputStream.readInt();
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69 } catch (IOException e) {
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70 DWT.error(DWT.ERROR_IO, e);
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71 }
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72 if (header[0] !is 0x4D42)
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73 DWT.error(DWT.ERROR_INVALID_IMAGE);
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74 return header;
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75 }
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76 override ImageData[] loadFromByteStream() {
0
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77 int[] fileHeader = loadFileHeader();
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78 byte[] infoHeader = new byte[BMPHeaderFixedSize];
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79 try {
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80 inputStream.read(infoHeader);
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81 } catch (Exception e) {
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82 DWT.error(DWT.ERROR_IO, e);
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83 }
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84 width = (infoHeader[4] & 0xFF) | ((infoHeader[5] & 0xFF) << 8);
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85 height = (infoHeader[6] & 0xFF) | ((infoHeader[7] & 0xFF) << 8);
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86 bitCount = (infoHeader[10] & 0xFF) | ((infoHeader[11] & 0xFF) << 8);
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87 PaletteData palette = loadPalette(infoHeader);
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88 if (inputStream.getPosition() < fileHeader[4]) {
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89 // Seek to the specified offset
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90 try {
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91 inputStream.skip(fileHeader[4] - inputStream.getPosition());
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92 } catch (IOException e) {
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93 DWT.error(DWT.ERROR_IO, e);
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94 }
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95 }
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96 byte[] data = loadData(infoHeader);
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97 int type = DWT.IMAGE_OS2_BMP;
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98 return [
0
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99 ImageData.internal_new(
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100 width,
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101 height,
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102 bitCount,
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103 palette,
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104 4,
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105 data,
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106 0,
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107 null,
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108 null,
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109 -1,
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110 -1,
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111 type,
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112 0,
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113 0,
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114 0,
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115 0)
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116 ];
0
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117 }
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118 PaletteData loadPalette(byte[] infoHeader) {
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119 if (bitCount <= 8) {
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120 int numColors = 1 << bitCount;
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121 byte[] buf = new byte[numColors * 3];
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122 try {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
123 if (inputStream.read(buf) !is buf.length)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
124 DWT.error(DWT.ERROR_INVALID_IMAGE);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
125 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
126 DWT.error(DWT.ERROR_IO, e);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
127 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
128 return paletteFromBytes(buf, numColors);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
129 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
130 if (bitCount is 16) return new PaletteData(0x7C00, 0x3E0, 0x1F);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
131 if (bitCount is 24) return new PaletteData(0xFF, 0xFF00, 0xFF0000);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
132 return new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
133 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
134 PaletteData paletteFromBytes(byte[] bytes, int numColors) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
135 int bytesOffset = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
136 RGB[] colors = new RGB[numColors];
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
137 for (int i = 0; i < numColors; i++) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
138 colors[i] = new RGB(bytes[bytesOffset + 2] & 0xFF,
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
139 bytes[bytesOffset + 1] & 0xFF,
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
140 bytes[bytesOffset] & 0xFF);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
141 bytesOffset += 3;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
142 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
143 return new PaletteData(colors);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
144 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
145 /**
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
146 * Answer a byte array containing the BMP representation of
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
147 * the given device independent palette.
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
148 */
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
149 static byte[] paletteToBytes(PaletteData pal) {
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parents:
diff changeset
150 int n = pal.colors is null ? 0 : (pal.colors.length < 256 ? pal.colors.length : 256);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
151 byte[] bytes = new byte[n * 3];
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parents:
diff changeset
152 int offset = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
153 for (int i = 0; i < n; i++) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
154 RGB col = pal.colors[i];
7
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
diff changeset
155 bytes[offset] = cast(byte)col.blue;
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
diff changeset
156 bytes[offset + 1] = cast(byte)col.green;
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
diff changeset
157 bytes[offset + 2] = cast(byte)col.red;
0
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
158 offset += 3;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
159 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
160 return bytes;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
161 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
162 /**
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
163 * Unload the given image's data into the given byte stream.
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
164 * Answer the number of bytes written.
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
165 */
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
166 int unloadData(ImageData image, OutputStream ostr) {
0
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
167 int bmpBpl = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
168 try {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
169 int bpl = (image.width * image.depth + 7) / 8;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
170 bmpBpl = (bpl + 3) / 4 * 4; // BMP pads scanlines to multiples of 4 bytes
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
171 int linesPerBuf = 32678 / bmpBpl;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
172 byte[] buf = new byte[linesPerBuf * bmpBpl];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
173 byte[] data = image.data;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
174 int imageBpl = image.bytesPerLine;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
175 int dataIndex = imageBpl * (image.height - 1); // Start at last line
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
176 if (image.depth is 16) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
177 for (int y = 0; y < image.height; y += linesPerBuf) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
178 int count = image.height - y;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
179 if (linesPerBuf < count) count = linesPerBuf;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
180 int bufOffset = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
181 for (int i = 0; i < count; i++) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
182 for (int wIndex = 0; wIndex < bpl; wIndex += 2) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
183 buf[bufOffset + wIndex + 1] = data[dataIndex + wIndex + 1];
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
184 buf[bufOffset + wIndex] = data[dataIndex + wIndex];
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
185 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
186 bufOffset += bmpBpl;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
187 dataIndex -= imageBpl;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
188 }
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
189 ostr.write(buf, 0, bufOffset);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
190 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
191 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
192 for (int y = 0; y < image.height; y += linesPerBuf) {
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
193 int tmp = image.height - y;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
194 int count = tmp < linesPerBuf ? tmp : linesPerBuf;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
195 int bufOffset = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
196 for (int i = 0; i < count; i++) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
197 System.arraycopy(data, dataIndex, buf, bufOffset, bpl);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
198 bufOffset += bmpBpl;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
199 dataIndex -= imageBpl;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
200 }
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
201 ostr.write(buf, 0, bufOffset);
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
202 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
203 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
204 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
205 DWT.error(DWT.ERROR_IO, e);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
206 }
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
207 return bmpBpl * image.height;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
208 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
209 /**
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
210 * Unload a DeviceIndependentImage using Windows .BMP format into the given
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
211 * byte stream.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
212 */
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
213 override void unloadIntoByteStream(ImageLoader loader) {
0
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
214 ImageData image = loader.data[0];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
215 byte[] rgbs;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
216 int numCols;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
217 if (!((image.depth is 1) || (image.depth is 4) || (image.depth is 8) ||
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
218 (image.depth is 16) || (image.depth is 24) || (image.depth is 32)))
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
219 DWT.error(DWT.ERROR_UNSUPPORTED_DEPTH);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
220 PaletteData pal = image.palette;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
221 if ((image.depth is 16) || (image.depth is 24) || (image.depth is 32)) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
222 if (!pal.isDirect)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
223 DWT.error(DWT.ERROR_INVALID_IMAGE);
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
224 numCols = 0;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
225 rgbs = null;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
226 } else {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
227 if (pal.isDirect)
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
228 DWT.error(DWT.ERROR_INVALID_IMAGE);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
229 numCols = pal.colors.length;
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Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
230 rgbs = paletteToBytes(pal);
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
231 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
232 // Fill in file header, except for bfsize, which is done later.
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
233 int headersSize = BMPFileHeaderSize + BMPHeaderFixedSize;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
234 int[] fileHeader = new int[5];
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
235 fileHeader[0] = 0x4D42; // Signature
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
236 fileHeader[1] = 0; // File size - filled in later
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
237 fileHeader[2] = 0; // Reserved 1
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
238 fileHeader[3] = 0; // Reserved 2
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
239 fileHeader[4] = headersSize; // Offset to data
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
240 if (rgbs !is null) {
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
241 fileHeader[4] += rgbs.length;
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
242 }
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
243
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
244 // Prepare data. This is done first so we don't have to try to rewind
380af2bdd8e5 Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents:
diff changeset
245 // the stream and fill in the details later.
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
parents: 7
diff changeset
246 ByteArrayOutputStream ostr = new ByteArrayOutputStream();
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
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247 unloadData(image, ostr);
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
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248 byte[] data = ostr.toByteArray();
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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249
0
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250 // Calculate file size
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251 fileHeader[1] = fileHeader[4] + data.length;
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252
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253 // Write the headers
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254 try {
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255 outputStream.writeShort(fileHeader[0]);
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256 outputStream.writeInt(fileHeader[1]);
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257 outputStream.writeShort(fileHeader[2]);
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258 outputStream.writeShort(fileHeader[3]);
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259 outputStream.writeInt(fileHeader[4]);
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260 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
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261 DWT.error(DWT.ERROR_IO, e);
380af2bdd8e5 Upload of whole dwt tree
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262 }
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263 try {
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264 outputStream.writeInt(BMPHeaderFixedSize);
380af2bdd8e5 Upload of whole dwt tree
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265 outputStream.writeShort(image.width);
380af2bdd8e5 Upload of whole dwt tree
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266 outputStream.writeShort(image.height);
380af2bdd8e5 Upload of whole dwt tree
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267 outputStream.writeShort(1);
7
e831403a80a9 Add 'cast' to casts
Frank Benoit <benoit@tionex.de>
parents: 0
diff changeset
268 outputStream.writeShort(cast(short)image.depth);
0
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269 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
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270 DWT.error(DWT.ERROR_IO, e);
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271 }
34
5123b17c98ef Ported dwt.events.*, dwt.graphics.GC, Region, dwt.internal.image.*
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272
0
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273 // Unload palette
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274 if (numCols > 0) {
380af2bdd8e5 Upload of whole dwt tree
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275 try {
380af2bdd8e5 Upload of whole dwt tree
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276 outputStream.write(rgbs);
380af2bdd8e5 Upload of whole dwt tree
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277 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
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278 DWT.error(DWT.ERROR_IO, e);
380af2bdd8e5 Upload of whole dwt tree
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parents:
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279 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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280 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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281
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282 // Unload the data
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283 try {
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284 outputStream.write(data);
380af2bdd8e5 Upload of whole dwt tree
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parents:
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285 } catch (IOException e) {
380af2bdd8e5 Upload of whole dwt tree
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parents:
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286 DWT.error(DWT.ERROR_IO, e);
380af2bdd8e5 Upload of whole dwt tree
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parents:
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287 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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288 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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289 void flipScanLines(byte[] data, int stride, int height) {
380af2bdd8e5 Upload of whole dwt tree
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parents:
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290 int i1 = 0;
380af2bdd8e5 Upload of whole dwt tree
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parents:
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291 int i2 = (height - 1) * stride;
380af2bdd8e5 Upload of whole dwt tree
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parents:
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292 for (int i = 0; i < height / 2; i++) {
380af2bdd8e5 Upload of whole dwt tree
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parents:
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293 for (int index = 0; index < stride; index++) {
380af2bdd8e5 Upload of whole dwt tree
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parents:
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294 byte b = data[index + i1];
380af2bdd8e5 Upload of whole dwt tree
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parents:
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295 data[index + i1] = data[index + i2];
380af2bdd8e5 Upload of whole dwt tree
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parents:
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296 data[index + i2] = b;
380af2bdd8e5 Upload of whole dwt tree
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297 }
380af2bdd8e5 Upload of whole dwt tree
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298 i1 += stride;
380af2bdd8e5 Upload of whole dwt tree
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299 i2 -= stride;
380af2bdd8e5 Upload of whole dwt tree
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parents:
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300 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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301 }
380af2bdd8e5 Upload of whole dwt tree
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parents:
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302
380af2bdd8e5 Upload of whole dwt tree
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303 }