Mercurial > projects > dwt2
annotate org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/internal/image/JPEGQuantizationTable.d @ 120:536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
===D2===
* added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements
used these templates to work with strict type storage rules of dmd-2.053
* com.ibm.icu now also compilable with D2, but not tested yet
* small fixes
Snippet288 - shared data is in TLS
===Phobos===
* fixed critical bugs in Phobos implemention
completely incorrect segfault prone fromStringz (Linux's port ruthless killer)
terrible, incorrect StringBuffer realization (StyledText killer)
* fixed small bugs as well
Snippet72 - misprint in the snippet
* implemented missed functionality for Phobos
ByteArrayOutputStream implemented (image loading available)
formatting correctly works for all DWT's cases
As a result, folowing snippets now works with Phobos (Snippet### - what is fixed):
Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting
Snippet48, 282 - crash on image loading
Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText
Snippet244 - hang-up
===Tango===
* few changes for the latest Tango trunc-r5661
* few small performance improvments
===General===
* implMissing-s for only one version changed to implMissingInTango/InPhobos
* incorrect calls to Format in toString-s fixed
* fixed loading \uXXXX characters in ResourceBundle
* added good UTF-8 support for StyledText, TextLayout (Win32) and friends
UTF functions revised and tested. It is now in java.nonstandard.*Utf modules
StyledText and TextLayout (Win32) modules revised for UTF-8 support
* removed small diferences in most identical files in *.swt.* folders
*.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32
now 179 of 576 (~31%) files in *.swt.* folders are fully identical
* Win32: snippets now have right subsystem, pretty icons and native system style controls
* small fixes in snippets
Snippet44 - it's not Snippet44
Snippet212 - functions work with different images and offsets arrays
Win32: Snippet282 - crash on close if the button has an image
Snippet293 - setGrayed is commented
and others
Win32: As a result, folowing snippets now works
Snippet68 - color doesn't change
Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above)
Snippet193 - no tabel headers
| author | Denis Shelomovskij <verylonglogin.reg@gmail.com> |
|---|---|
| date | Sat, 09 Jul 2011 15:50:20 +0300 |
| parents | f713da8bc051 |
| children |
| rev | line source |
|---|---|
| 25 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2006 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module org.eclipse.swt.internal.image.JPEGQuantizationTable; | |
| 14 | |
| 15 import org.eclipse.swt.internal.image.LEDataInputStream; | |
| 16 import org.eclipse.swt.internal.image.JPEGVariableSizeSegment; | |
| 17 import org.eclipse.swt.internal.image.JPEGFileFormat; | |
| 18 | |
|
120
536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
Denis Shelomovskij <verylonglogin.reg@gmail.com>
parents:
25
diff
changeset
|
19 import java.lang.System; |
| 25 | 20 |
| 21 final class JPEGQuantizationTable : JPEGVariableSizeSegment { | |
| 22 public static byte[] DefaultLuminanceQTable = [ | |
| 23 cast(byte)255, cast(byte)219, 0, 67, 0, | |
| 24 16, 11, 10, 16, 24, 40, 51, 61, | |
| 25 12, 12, 14, 19, 26, 58, 60, 55, | |
| 26 14, 13, 16, 24, 40, 57, 69, 56, | |
| 27 14, 17, 22, 29, 51, 87, 80, 62, | |
| 28 18, 22, 37, 56, 68, 109, 103, 77, | |
| 29 24, 35, 55, 64, 81, 104, 113, 92, | |
| 30 49, 64, 78, 87, 103, 121, 120, 101, | |
| 31 72, 92, 95, 98, 112, 100, 103, 99 | |
| 32 ]; | |
| 33 public static byte[] DefaultChrominanceQTable = [ | |
| 34 cast(byte)255, cast(byte)219, 0, 67, 1, | |
| 35 17, 18, 24, 47, 99, 99, 99, 99, | |
| 36 18, 21, 26, 66, 99, 99, 99, 99, | |
| 37 24, 26, 56, 99, 99, 99, 99, 99, | |
| 38 47, 66, 99, 99, 99, 99, 99, 99, | |
| 39 99, 99, 99, 99, 99, 99, 99, 99, | |
| 40 99, 99, 99, 99, 99, 99, 99, 99, | |
| 41 99, 99, 99, 99, 99, 99, 99, 99, | |
| 42 99, 99, 99, 99, 99, 99, 99, 99 | |
| 43 ]; | |
| 44 | |
| 45 public this(byte[] reference) { | |
| 46 super(reference); | |
| 47 } | |
| 48 | |
| 49 public this(LEDataInputStream byteStream) { | |
| 50 super(byteStream); | |
| 51 } | |
| 52 | |
| 53 public static JPEGQuantizationTable defaultChrominanceTable() { | |
| 54 byte[] data = new byte[DefaultChrominanceQTable.length]; | |
| 55 System.arraycopy(DefaultChrominanceQTable, 0, data, 0, data.length); | |
| 56 return new JPEGQuantizationTable(data); | |
| 57 } | |
| 58 | |
| 59 public static JPEGQuantizationTable defaultLuminanceTable() { | |
| 60 byte[] data = new byte[DefaultLuminanceQTable.length]; | |
| 61 System.arraycopy(DefaultLuminanceQTable, 0, data, 0, data.length); | |
| 62 return new JPEGQuantizationTable(data); | |
| 63 } | |
| 64 | |
| 65 public int[] getQuantizationTablesKeys() { | |
| 66 int[] keys = new int[4]; | |
| 67 int keysIndex = 0; | |
| 68 int totalLength = getSegmentLength() - 2; | |
| 69 int ofs = 4; | |
| 70 while (totalLength > 64) { | |
| 71 int tq = reference[ofs] & 0xF; | |
| 72 int pq = (reference[ofs] & 0xFF) >> 4; | |
| 73 if (pq is 0) { | |
| 74 ofs += 65; | |
| 75 totalLength -= 65; | |
| 76 } else { | |
| 77 ofs += 129; | |
| 78 totalLength -= 129; | |
| 79 } | |
| 80 if (keysIndex >= keys.length) { | |
| 81 int[] newKeys = new int[keys.length + 4]; | |
| 82 System.arraycopy(keys, 0, newKeys, 0, keys.length); | |
| 83 keys = newKeys; | |
| 84 } | |
| 85 keys[keysIndex] = tq; | |
| 86 keysIndex++; | |
| 87 } | |
| 88 int[] newKeys = new int[keysIndex]; | |
| 89 System.arraycopy(keys, 0, newKeys, 0, keysIndex); | |
| 90 return newKeys; | |
| 91 } | |
| 92 | |
| 93 public int[][] getQuantizationTablesValues() { | |
| 94 int[][] values = new int[][](4); | |
| 95 int valuesIndex = 0; | |
| 96 int totalLength = getSegmentLength() - 2; | |
| 97 int ofs = 4; | |
| 98 while (totalLength > 64) { | |
| 99 int[] qk = new int[64]; | |
| 100 int pq = (reference[ofs] & 0xFF) >> 4; | |
| 101 if (pq is 0) { | |
| 102 for (int i = 0; i < qk.length; i++) { | |
| 103 qk[i] = reference[ofs + i + 1] & 0xFF; | |
| 104 } | |
| 105 ofs += 65; | |
| 106 totalLength -= 65; | |
| 107 } else { | |
| 108 for (int i = 0; i < qk.length; i++) { | |
| 109 int idx = (i - 1) * 2 ; | |
| 110 qk[i] = (reference[ofs + idx + 1] & 0xFF) * 256 + (reference[ofs + idx + 2] & 0xFF); | |
| 111 } | |
| 112 ofs += 129; | |
| 113 totalLength -= 129; | |
| 114 } | |
| 115 if (valuesIndex >= values.length) { | |
| 116 int[][] newValues = new int[][](values.length + 4); | |
| 117 System.arraycopy(values, 0, newValues, 0, values.length); | |
| 118 values = newValues; | |
| 119 } | |
| 120 values[valuesIndex] = qk; | |
| 121 valuesIndex++; | |
| 122 } | |
| 123 int[][] newValues = new int[][](valuesIndex); | |
| 124 System.arraycopy(values, 0, newValues, 0, valuesIndex); | |
| 125 return newValues; | |
| 126 } | |
| 127 | |
| 128 public void scaleBy(int qualityFactor) { | |
| 129 int qFactor = qualityFactor; | |
| 130 if (qFactor <= 0) { | |
| 131 qFactor = 1; | |
| 132 } | |
| 133 if (qFactor > 100) { | |
| 134 qFactor = 100; | |
| 135 } | |
| 136 if (qFactor < 50) { | |
| 137 qFactor = 5000 / qFactor; | |
| 138 } else { | |
| 139 qFactor = 200 - (qFactor * 2); | |
| 140 } | |
| 141 int totalLength = getSegmentLength() - 2; | |
| 142 int ofs = 4; | |
| 143 while (totalLength > 64) { | |
| 144 // int tq = reference[ofs] & 0xFF; | |
| 145 int pq = (reference[ofs] & 0xFF) >> 4; | |
| 146 if (pq is 0) { | |
| 147 for (int i = ofs + 1; i <= ofs + 64; i++) { | |
| 148 int temp = ((reference[i] & 0xFF) * qFactor + 50) / 100; | |
| 149 if (temp <= 0) temp = 1; | |
| 150 if (temp > 255) temp = 255; | |
| 151 reference[i] = cast(byte)temp; | |
| 152 } | |
| 153 ofs += 65; | |
| 154 totalLength -= 65; | |
| 155 } else { | |
| 156 for (int i = ofs + 1; i <= ofs + 128; i += 2) { | |
| 157 int temp = (((reference[i] & 0xFF) * 256 + (reference[i + 1] & 0xFF)) * qFactor + 50) / 100; | |
| 158 if (temp <= 0) temp = 1; | |
| 159 if (temp > 32767) temp = 32767; | |
| 160 reference[i] = cast(byte)(temp >> 8); | |
| 161 reference[i + 1] = cast(byte)(temp & 0xFF); | |
| 162 } | |
| 163 ofs += 129; | |
| 164 totalLength -= 129; | |
| 165 } | |
| 166 } | |
| 167 } | |
| 168 | |
| 169 public override int signature() { | |
| 170 return JPEGFileFormat.DQT; | |
| 171 } | |
| 172 } |