projects/dwt-win: dwt/internal/image/PngEncoder.d annotate

annotate dwt/internal/image/PngEncoder.d @ 213:36f5cb12e1a2

Update to SWT 3.4M7

author	Frank Benoit <benoit@tionex.de>
date	Sat, 17 May 2008 17:34:28 +0200
parents	57151e2793a2
children	fd9c62a2998e

rev	line source
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	1 /*******************************************************************************
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	2 * Copyright (c) 2000, 2006 IBM Corporation and others.
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	5 * which accompanies this distribution, and is available at
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	7 *
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	8 * Contributors:
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	9 * IBM Corporation - initial API and implementation
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	10 * Port to the D programming language:
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	11 * Frank Benoit <benoit@tionex.de>
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	12 *******************************************************************************/
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	13 module dwt.internal.image.PngEncoder;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	14
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	15 import dwt.internal.image.LEDataOutputStream;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	16 import dwt.internal.image.PngDeflater;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	17 import dwt.dwthelper.ByteArrayOutputStream;
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	18 import dwt.dwthelper.OutputStream;
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	19 import dwt.DWT;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	20 import dwt.graphics.ImageData;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	21 import dwt.graphics.ImageLoader;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	22 import dwt.graphics.RGB;
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	23 import dwt.internal.Compatibility;
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	24 import dwt.internal.image.PngChunk;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	25
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	26 import tango.core.Exception;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	27
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	28 final class PngEncoder {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	29
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	30 static const byte SIGNATURE[] = [cast(byte) '\211', cast(byte) 'P', cast(byte) 'N', cast(byte) 'G', cast(byte) '\r', cast(byte) '\n', cast(byte) '\032', cast(byte) '\n'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	31 static const byte TAG_IHDR[] = [cast(byte) 'I', cast(byte) 'H', cast(byte) 'D', cast(byte) 'R'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	32 static const byte TAG_PLTE[] = [cast(byte) 'P', cast(byte) 'L', cast(byte) 'T', cast(byte) 'E'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	33 static const byte TAG_TRNS[] = [cast(byte) 't', cast(byte) 'R', cast(byte) 'N', cast(byte) 'S'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	34 static const byte TAG_IDAT[] = [cast(byte) 'I', cast(byte) 'D', cast(byte) 'A', cast(byte) 'T'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	35 static const byte TAG_IEND[] = [cast(byte) 'I', cast(byte) 'E', cast(byte) 'N', cast(byte) 'D'];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	36
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	37 ByteArrayOutputStream bytes;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	38 PngChunk chunk;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	39
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	40 ImageLoader loader;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	41 ImageData data;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	42 int transparencyType;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	43
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	44 int width, height, bitDepth, colorType;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	45
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	46 int compressionMethod = 0;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	47 int filterMethod = 0;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	48 int interlaceMethod = 0;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	49
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	50 public this(ImageLoader loader) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	51 this.bytes = new ByteArrayOutputStream(1024);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	52 this.loader = loader;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	53 this.data = loader.data[0];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	54 this.transparencyType = data.getTransparencyType();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	55
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	56 this.width = data.width;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	57 this.height = data.height;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	58
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	59 this.bitDepth = 8;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	60
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	61 this.colorType = 2;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	62
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	63 if (data.palette.isDirect) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	64 if (transparencyType is DWT.TRANSPARENCY_ALPHA) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	65 this.colorType = 6;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	66 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	67 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	68 else {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	69 this.colorType = 3;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	70 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	71
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	72 if (!(colorType is 2 \|\| colorType is 3 \|\| colorType is 6)) DWT.error(DWT.ERROR_INVALID_IMAGE);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	73
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	74 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	75
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	76 void writeShort(ByteArrayOutputStream baos, int theShort) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	77
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	78 byte byte1 = cast(byte) ((theShort >> 8) & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	79 byte byte2 = cast(byte) (theShort & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	80 byte[] temp = [byte1, byte2];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	81 baos.write(temp, 0, 2);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	82
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	83 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	84
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	85 void writeInt(ByteArrayOutputStream baos, int theInt) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	86
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	87 byte byte1 = cast(byte) ((theInt >> 24) & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	88 byte byte2 = cast(byte) ((theInt >> 16) & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	89 byte byte3 = cast(byte) ((theInt >> 8) & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	90 byte byte4 = cast(byte) (theInt & 0xff);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	91 byte[] temp = [byte1, byte2, byte3, byte4];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	92 baos.write(temp, 0, 4);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	93
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	94 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	95
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	96 void writeChunk(byte[] tag, byte[] buffer) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	97
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	98 int bufferLength = (buffer !is null) ? buffer.length : 0;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	99
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	100 chunk = new PngChunk(bufferLength);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	101
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	102 writeInt(bytes, bufferLength);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	103 bytes.write(tag, 0, 4);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	104 chunk.setType(tag);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	105 if (bufferLength !is 0) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	106 bytes.write(buffer, 0, bufferLength);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	107 chunk.setData(buffer);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	108 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	109 else {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	110 chunk.setCRC(chunk.computeCRC());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	111 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	112 writeInt(bytes, chunk.getCRC());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	113
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	114 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	115
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	116 void writeSignature() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	117
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	118 bytes.write(SIGNATURE, 0, 8);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	119
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	120 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	121
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	122 void writeHeader() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	123
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	124 ByteArrayOutputStream baos = new ByteArrayOutputStream(13);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	125
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	126 writeInt(baos, width);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	127 writeInt(baos, height);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	128 baos.write(bitDepth);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	129 baos.write(colorType);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	130 baos.write(compressionMethod);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	131 baos.write(filterMethod);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	132 baos.write(interlaceMethod);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	133
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	134 writeChunk(TAG_IHDR, baos.toByteArray());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	135
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	136 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	137
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	138 void writePalette() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	139
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	140 RGB[] RGBs = data.palette.getRGBs();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	141
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	142 if (RGBs.length > 256) DWT.error(DWT.ERROR_INVALID_IMAGE);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	143
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	144 ByteArrayOutputStream baos = new ByteArrayOutputStream(RGBs.length);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	145
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	146 for (int i = 0; i < RGBs.length; i++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	147
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	148 baos.write(cast(byte) RGBs[i].red);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	149 baos.write(cast(byte) RGBs[i].green);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	150 baos.write(cast(byte) RGBs[i].blue);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	151
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	152 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	153
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	154 writeChunk(TAG_PLTE, baos.toByteArray());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	155
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	156 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	157
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	158 void writeTransparency() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	159
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	160 ByteArrayOutputStream baos = new ByteArrayOutputStream();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	161
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	162 switch (transparencyType) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	163
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	164 case DWT.TRANSPARENCY_ALPHA:
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	165
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	166 int pixelValue, alphaValue;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	167
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	168 byte[] alphas = new byte[data.palette.getRGBs().length];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	169
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	170 for (int y = 0; y < height; y++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	171
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	172 for (int x = 0; x < width; x++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	173
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	174 pixelValue = data.getPixel(x, y);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	175 alphaValue = data.getAlpha(x, y);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	176
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	177 alphas[pixelValue] = cast(byte) alphaValue;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	178
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	179 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	180
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	181 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	182
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	183 baos.write(alphas, 0, alphas.length);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	184
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	185 break;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	186
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	187 case DWT.TRANSPARENCY_PIXEL:
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	188
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	189 int pixel = data.transparentPixel;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	190
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	191 if (colorType is 2) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	192
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	193 int redMask = data.palette.redMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	194 int redShift = data.palette.redShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	195 int greenMask = data.palette.greenMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	196 int greenShift = data.palette.greenShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	197 int blueShift = data.palette.blueShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	198 int blueMask = data.palette.blueMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	199
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	200 int r = pixel & redMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	201 r = (redShift < 0) ? r >>> -redShift : r << redShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	202 int g = pixel & greenMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	203 g = (greenShift < 0) ? g >>> -greenShift : g << greenShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	204 int b = pixel & blueMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	205 b = (blueShift < 0) ? b >>> -blueShift : b << blueShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	206
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	207 writeShort(baos, r);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	208 writeShort(baos, g);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	209 writeShort(baos, b);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	210
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	211 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	212
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	213 if (colorType is 3) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	214
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	215 byte[] padding = new byte[pixel + 1];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	216
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	217 for (int i = 0; i < pixel; i++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	218
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	219 padding[i] = cast(byte) 255;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	220
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	221 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	222
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	223 padding[pixel] = cast(byte) 0;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	224
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	225 baos.write(padding, 0, padding.length);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	226
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	227 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	228
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	229 break;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	230 default:
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	231
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	232 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	233
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	234 writeChunk(TAG_TRNS, baos.toByteArray());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	235
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	236 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	237
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	238 void writeImageData() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	239
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	240 ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	241 OutputStream os = Compatibility.newDeflaterOutputStream(baos);
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	242 if (os is null) os = baos;
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	243
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	244 if (colorType is 3) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	245
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	246 byte[] lineData = new byte[width];
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	247
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	248 for (int y = 0; y < height; y++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	249
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	250 int filter = 0;
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	251 os.write(filter);
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	252
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	253 data.getPixels(0, y, width, lineData, 0);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	254
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	255 for (int x = 0; x < lineData.length; x++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	256
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	257 os.write(lineData[x]);
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	258
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	259 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	260
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	261 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	262
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	263 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	264
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	265 else {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	266
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	267 int[] lineData = new int[width];
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	268 byte[] alphaData = null;
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	269 if (colorType is 6) {
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	270 alphaData = new byte[width];
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	271 }
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	272
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	273 int redMask = data.palette.redMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	274 int redShift = data.palette.redShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	275 int greenMask = data.palette.greenMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	276 int greenShift = data.palette.greenShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	277 int blueShift = data.palette.blueShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	278 int blueMask = data.palette.blueMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	279
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	280 for (int y = 0; y < height; y++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	281
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	282 int filter = 0;
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	283 os.write(filter);
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	284
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	285 data.getPixels(0, y, width, lineData, 0);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	286
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	287 if (colorType is 6) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	288 data.getAlphas(0, y, width, alphaData, 0);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	289 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	290
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	291 for (int x = 0; x < lineData.length; x++) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	292
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	293 int pixel = lineData[x];
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	294
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	295 int r = pixel & redMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	296 r = (redShift < 0) ? r >>> -redShift : r << redShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	297 int g = pixel & greenMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	298 g = (greenShift < 0) ? g >>> -greenShift : g << greenShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	299 int b = pixel & blueMask;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	300 b = (blueShift < 0) ? b >>> -blueShift : b << blueShift;
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	301
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	302 os.write(r);
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	303 os.write(g);
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	304 os.write(b);
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	305
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	306 if (colorType is 6) {
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	307 os.write(alphaData[x]);
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	308 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	309
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	310 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	311
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	312 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	313
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	314 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	315
213 36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	316 os.flush();
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	317 os.close();
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	318
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	319 byte[] compressed = baos.toByteArray();
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	320 if (os is baos) {
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	321 PngDeflater deflater = new PngDeflater();
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	322 compressed = deflater.deflate(compressed);
36f5cb12e1a2 Update to SWT 3.4M7 Frank Benoit <benoit@tionex.de> parents: 2 diff changeset	323 }
2 57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	324
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	325 writeChunk(TAG_IDAT, compressed);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	326
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	327 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	328
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	329 void writeEnd() {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	330
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	331 writeChunk(TAG_IEND, null);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	332
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	333 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	334
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	335 public void encode(LEDataOutputStream outputStream) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	336
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	337 try {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	338
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	339 writeSignature();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	340 writeHeader();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	341
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	342 if (colorType is 3) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	343 writePalette();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	344 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	345
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	346 bool transparencyAlpha = (transparencyType is DWT.TRANSPARENCY_ALPHA);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	347 bool transparencyPixel = (transparencyType is DWT.TRANSPARENCY_PIXEL);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	348 bool type2Transparency = (colorType is 2 && transparencyPixel);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	349 bool type3Transparency = (colorType is 3 && (transparencyAlpha \|\| transparencyPixel));
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	350
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	351 if (type2Transparency \|\| type3Transparency) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	352 writeTransparency();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	353 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	354
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	355 writeImageData();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	356 writeEnd();
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	357
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	358 outputStream.write(bytes.toByteArray());
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	359
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	360 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	361
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	362 catch (IOException e) {
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	363
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	364 DWT.error(DWT.ERROR_IO, e);
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	365
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	366 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	367
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	368 }
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	369
57151e2793a2 More common modules from dwt-linux Frank Benoit <benoit@tionex.de> parents: diff changeset	370 }

Mercurial > projects > dwt-win

annotate dwt/internal/image/PngEncoder.d @ 213:36f5cb12e1a2