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50
51 package org.openlaszlo.iv.flash.api.image;
52
53 import java.io.*;
54 import java.awt.color.ColorSpace  ;
55 import java.awt.image.ColorConvertOp ;
56 import java.awt.image.BufferedImage ;
57 import java.awt.image.Raster ;
58 import java.awt.geom.*;
59 import org.openlaszlo.iv.flash.url.*;
60 import org.openlaszlo.iv.flash.util.*;
61 import org.openlaszlo.iv.flash.parser.*;
62 import org.openlaszlo.iv.flash.api.*;
63
64 import com.sun.image.codec.jpeg.*;
65
66 public class JPEGBitmap extends Bitmap {
67
68 private static final String jpegTablesName = "%JPEGTABLES$JPEGTABLES%";
69 private DataMarker data;
70 private FlashItem jpegTables;
71 private Rectangle2D bounds;
72 private JPEGInfo info;
73
74
75 private boolean readyToGen;
76
77 public JPEGBitmap() {}
78
79 public void setData( DataMarker data ) {
80 this.data = data;
81 this.bounds = null;
82 this.readyToGen = false;
83 }
84
85 public static Bitmap parse( Parser p ) {
86 JPEGBitmap o = new JPEGBitmap();
87 o.setID( p.getUWord() );
88 o.data = new DataMarker( p.getBuf(), p.getPos(), p.getTagEndPos() );
89 o.readyToGen = true;
90 o.tagCode = p.getTagCode();
91 if( o.tagCode == Tag.DEFINEBITS ) {
92 o.jpegTables = p.getDefFromLibrary(jpegTablesName);
93 }
94 return o;
95 }
96
97 public static void parseJPegTables( Parser p ) {
98 JPEGTables tables = new JPEGTables();
99 tables.setData( new DataMarker( p.getBuf(), p.getPos(), p.getTagEndPos() ) ); tables.setName( jpegTablesName );
101 p.addDefToLibrary( jpegTablesName, tables );
102 }
103
104 public int getSize() {
105 return data.buffer.length;
106 }
107
108 public Rectangle2D getBounds() {
109 if( bounds != null ) return bounds;
110 parseData();
111 return bounds;
112 }
113
114 public void collectDeps( DepsCollector dc ) {
115
116
121 }
122
123 public static JPEGBitmap newJPEGBitmap( String fileName )
124 throws IVException, IOException
125 {
126 return newJPEGBitmap( IVUrl.newUrl(fileName));
127 }
128
129 public static JPEGBitmap newJPEGBitmap( IVUrl url )
130 throws IVException, IOException
131 {
132 return newJPEGBitmap( Util.readUrl(url) );
133 }
134
135 public static JPEGBitmap newJPEGBitmap( FlashBuffer fob ) throws IVException {
136 JPEGBitmap bitmap = new JPEGBitmap();
137 bitmap.setTag( Tag.DEFINEBITSJPEG2 );
138 DataMarker data = new DataMarker(fob.getBuf(), 0, fob.getSize());
139 bitmap.setData(data);
140 return bitmap;
142 }
143
144 private void parseData() {
145 info = JPEGHelper.getInfo(data.buffer, data.start, data.end);
146 bounds = GeomHelper.newRectangle(0,0,info.width,info.height);
147
148 if( info.type == 0 && info.num_comps == 3 ) {
150 readyToGen = true;
151 } else {
152 readyToGen = false;
153 }
154 }
155
156
164 public void processImage( float quality ) {
165 try {
166 Log.logRB( Resource.REENCODINGJPEG, new Object [] {new Float (quality)} );
167 int size = data.end-data.start;
168 InputStream is = data.getInputStream();
169 JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder( is );
170 BufferedImage image = decoder.decodeAsBufferedImage();
171
172 info = JPEGHelper.getInfo(data.buffer, data.start, data.end);
173 if (info.num_comps != 3) {
175 ColorConvertOp op = new ColorConvertOp (image.getColorModel().getColorSpace(),
176 ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB), null);
177 image = op.filter(image, null);
178 }
179
180 bounds = GeomHelper.newRectangle(0,0,image.getWidth(),image.getHeight());
181
182 FlashBuffer fob = new FlashBuffer(size);
183 OutputStream os = fob.getOutputStream();
184
185 JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
186 JPEGEncodeParam params = encoder.getDefaultJPEGEncodeParam(image);
187 params.setQuality(quality,true);
188 encoder.encode(image,params);
189
190 data.buffer = fob.getBuf();
191 data.end = fob.getSize();
192 data.start = 0;
193 readyToGen = true;
194 } catch( IOException e ) {
195 Log.log( e );
196 }
197 }
198
199
206 public void rescale( int width, int height, float quality ) {
207 try {
208 Log.logRB(Resource.RESCALINGJPEG,
209 new Object [] {new Integer (width), new Integer (height), new Float (quality)});
210 int size = data.end-data.start;
211 InputStream is = data.getInputStream();
212 JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(is);
213 BufferedImage image = decoder.decodeAsBufferedImage();
214 image = (BufferedImage ) image.getScaledInstance(width, height, java.awt.Image.SCALE_SMOOTH);
215
216 bounds = GeomHelper.newRectangle(0,0,image.getWidth(),image.getHeight());
217
218 FlashBuffer fob = new FlashBuffer(size);
219 OutputStream os = fob.getOutputStream();
220
221 JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
222 JPEGEncodeParam params = encoder.getDefaultJPEGEncodeParam(image);
223 params.setQuality(quality,true);
224 encoder.encode(image,params);
225
226 data.buffer = fob.getBuf();
227 data.end = fob.getSize();
228 data.start = 0;
229 readyToGen = true;
230 } catch( IOException e ) {
231 Log.log( e );
232 }
233 }
234
235
245 public void write( FlashOutput fob ) {
246 if( !readyToGen ) {
247 processImage(.75f);
248 }
249 if (tagCode == Tag.DEFINEBITS) {
251 JPEGTables tables = (JPEGTables) jpegTables;
252 fob.writeTag(Tag.DEFINEBITSJPEG2, 2 + data.length() + tables.getDataLength());
253 fob.writeDefID( this );
254 tables.writeData(fob);
255 } else {
256 fob.writeTag(tagCode, 2+data.length());
257 fob.writeDefID( this );
258 }
259 data.write(fob);
260 }
261
262 public void printContent( PrintStream out, String indent ) {
263 out.println( indent+"JPEGBitmap("+Tag.tagNames[tagCode]+"): id="+getID()+" size="+data.length()+" name='"+getName()+"'" );
264 }
265
266 protected FlashItem copyInto( FlashItem item, ScriptCopier copier ) {
267 super.copyInto( item, copier );
268 ((JPEGBitmap)item).data = (DataMarker) data.getCopy();
269 ((JPEGBitmap)item).jpegTables = jpegTables;
270 ((JPEGBitmap)item).bounds = (Rectangle2D) bounds.clone();
271 ((JPEGBitmap)item).readyToGen = readyToGen;
272 ((JPEGBitmap)item).info = info!=null?info.getCopy():null;
273 return item;
274 }
275
276 public FlashItem getCopy( ScriptCopier copier ) {
277 return copyInto( new JPEGBitmap(), copier );
278 }
279
280 public static class JPEGInfo {
281 public int type; public int width;
283 public int height;
284 public int num_comps;
285 public int precision;
286 public JPEGInfo getCopy() {
287 JPEGInfo info = new JPEGInfo();
288 info.type = type;
289 info.width = width;
290 info.height = height;
291 info.num_comps = num_comps;
292 info.precision = precision;
293 return info;
294 }
295 }
296
297 private static class JPEGTables extends FlashDef {
298 DataMarker data;
299 public JPEGTables() {}
300 public int getTag() { return Tag.JPEGTABLES; }
301 public void setData( DataMarker data ) { this.data = data; }
302 public void write( FlashOutput fob ) {
303 fob.writeTag(Tag.JPEGTABLES, data.length());
304 data.write(fob);
305 }
306
307 public void writeData( FlashOutput fob ) {
308 data.write(fob);
309 }
310 public int getDataLength( ) {
311 return data.length();
312 }
313 }
314
315 }
316
317 |
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