Source Code Cross Referenced for LLBitmap.java in  » Ajax » Laszlo-4.0.10 » org » openlaszlo » iv » flash » api » image » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Ajax » Laszlo 4.0.10 » org.openlaszlo.iv.flash.api.image 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: LLBitmap.java,v 1.3 2002/02/24 02:10:19 skavish Exp $
003:         *
004:         * ==========================================================================
005:         *
006:         * The JGenerator Software License, Version 1.0
007:         *
008:         * Copyright (c) 2000 Dmitry Skavish (skavish@usa.net). All rights reserved.
009:         *
010:         * Redistribution and use in source and binary forms, with or without
011:         * modification, are permitted provided that the following conditions are met:
012:         *
013:         * 1. Redistributions of source code must retain the above copyright
014:         *    notice, this list of conditions and the following disclaimer.
015:         *
016:         * 2. Redistributions in binary form must reproduce the above copyright
017:         *    notice, this list of conditions and the following disclaimer in
018:         *    the documentation and/or other materials provided with the
019:         *    distribution.
020:         *
021:         * 3. The end-user documentation included with the redistribution, if
022:         *    any, must include the following acknowlegement:
023:         *    "This product includes software developed by Dmitry Skavish
024:         *     (skavish@usa.net, http://www.flashgap.com/)."
025:         *    Alternately, this acknowlegement may appear in the software itself,
026:         *    if and wherever such third-party acknowlegements normally appear.
027:         *
028:         * 4. The name "The JGenerator" must not be used to endorse or promote
029:         *    products derived from this software without prior written permission.
030:         *    For written permission, please contact skavish@usa.net.
031:         *
032:         * 5. Products derived from this software may not be called "The JGenerator"
033:         *    nor may "The JGenerator" appear in their names without prior written
034:         *    permission of Dmitry Skavish.
035:         *
036:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039:         * DISCLAIMED.  IN NO EVENT SHALL DMITRY SKAVISH OR THE OTHER
040:         * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047:         * SUCH DAMAGE.
048:         *
049:         */
050:
051:        package org.openlaszlo.iv.flash.api.image;
052:
053:        import java.io.*;
054:        import java.awt.image.*;
055:        import java.awt.geom.*;
056:        import java.util.zip.*;
057:        import org.openlaszlo.iv.flash.util.*;
058:        import org.openlaszlo.iv.flash.url.*;
059:        import org.openlaszlo.iv.flash.parser.*;
060:        import org.openlaszlo.iv.flash.api.*;
061:        import com.sun.image.codec.jpeg.*;
062:
063:        public class LLBitmap extends Bitmap {
064:
065:            protected DataMarker zlibData;
066:            protected Rectangle2D bounds;
067:            protected int format; // 3 - 8 bit, 4 - 16 bit, 5 - 32 bit
068:            protected int colorTableSize; // This value is one less than the actual size of the color table
069:
070:            public LLBitmap() {
071:            }
072:
073:            public static Bitmap parse(Parser p) {
074:                LLBitmap o = new LLBitmap();
075:                o.setID(p.getUWord());
076:                o.tagCode = p.getTagCode();
077:                o.format = p.getUByte();
078:                int width = p.getUWord();
079:                int height = p.getUWord();
080:                o.bounds = GeomHelper.newRectangle(0, 0, width, height);
081:                // in the other cases there is no color table, thus no color table size !
082:                if (o.format == 3) {
083:                    o.colorTableSize = p.getUByte();
084:                }
085:                o.zlibData = new DataMarker(p.getBuf(), p.getPos(), p
086:                        .getTagEndPos());
087:                return o;
088:            }
089:
090:            public void write(FlashOutput fob) {
091:
092:                int tagSize = 2 + 1 + 4
093:                        + ((colorTableSize >= 0 && format == 3) ? 1 : 0)
094:                        + zlibData.length();
095:                // always write long tag?
096:                fob.writeLongTag(tagCode, tagSize);
097:                fob.writeDefID(this );
098:                fob.writeByte(format);
099:                fob.writeWord(getWidth());
100:                fob.writeWord(getHeight());
101:                // the colorTableSize should not be written if the color table is empty !
102:                if (colorTableSize >= 0 && format == 3) {
103:                    fob.writeByte(colorTableSize);
104:                }
105:                zlibData.write(fob);
106:            }
107:
108:            public int getSize() {
109:                return zlibData.buffer.length;
110:            }
111:
112:            public Rectangle2D getBounds() {
113:                return bounds;
114:            }
115:
116:            public void setBounds(Rectangle2D rect) {
117:                this .bounds = rect;
118:            }
119:
120:            public void setWidth(int width) {
121:                if (bounds == null)
122:                    bounds = GeomHelper.newRectangle();
123:                bounds.setFrame(0, 0, width, getHeight());
124:            }
125:
126:            public void setHeight(int height) {
127:                if (bounds == null)
128:                    bounds = GeomHelper.newRectangle();
129:                bounds.setFrame(0, 0, getWidth(), height);
130:            }
131:
132:            public int getFormat() {
133:                return format;
134:            }
135:
136:            public void setFormat(int format) {
137:                this .format = format;
138:            }
139:
140:            public int getColorTableSize() {
141:                return colorTableSize;
142:            }
143:
144:            public void setColorTableSize(int colorTableSize) {
145:                this .colorTableSize = colorTableSize;
146:            }
147:
148:            public DataMarker getZLibData() {
149:                return zlibData;
150:            }
151:
152:            public void setZLibData(DataMarker data) {
153:                this .zlibData = data;
154:            }
155:
156:            public void setAlpha(boolean withAlpha) {
157:                if (withAlpha) {
158:                    tagCode = Tag.DEFINEBITSLOSSLESS2;
159:                } else {
160:                    tagCode = Tag.DEFINEBITSLOSSLESS;
161:                }
162:            }
163:
164:            public boolean isAlpha() {
165:                return tagCode == Tag.DEFINEBITSLOSSLESS2;
166:            }
167:
168:            public static LLBitmap newGIFBitmap(String fileName)
169:                    throws IVException, IOException {
170:                return newGIFBitmap(IVUrl.newUrl(fileName));
171:            }
172:
173:            public static LLBitmap newGIFBitmap(IVUrl url) throws IVException,
174:                    IOException {
175:                return newGIFBitmap(Util.readUrl(url));
176:            }
177:
178:            public static LLBitmap newGIFBitmap(FlashBuffer fob)
179:                    throws IVException {
180:                LLBitmap bitmap = new LLBitmap();
181:                try {
182:                    GIFHelper gh = new GIFHelper();
183:                    gh.doRead(fob);
184:                    bitmap.setWidth(gh.getWidth());
185:                    bitmap.setHeight(gh.getHeight());
186:                    bitmap.setFormat(3); // GIF image are always 8 bits
187:                    bitmap.setAlpha(gh.isAlpha()); // but can have transparency
188:                    bitmap.setColorTableSize(gh.getColorTableSize());
189:                    bitmap.setZLibData(gh.getZlibData());
190:                } catch (IOException e) {
191:                    throw new IVException(Resource.ERRREADINGGIF, e);
192:                }
193:                return bitmap;
194:            }
195:
196:            public static LLBitmap newPNGBitmap(String fileName)
197:                    throws IVException, IOException {
198:                return newPNGBitmap(IVUrl.newUrl(fileName));
199:            }
200:
201:            public static LLBitmap newPNGBitmap(IVUrl url) throws IVException,
202:                    IOException {
203:                return newPNGBitmap(Util.readUrl(url));
204:            }
205:
206:            public static LLBitmap newPNGBitmap(FlashBuffer fob)
207:                    throws IVException {
208:                LLBitmap bitmap = new LLBitmap();
209:                try {
210:                    PNGHelper pnh = new PNGHelper();
211:                    pnh.setInputBuffer(fob);
212:                    bitmap.setZLibData(pnh.getZlibData());
213:                    bitmap.setWidth(pnh.getWidth());
214:                    bitmap.setHeight(pnh.getHeight());
215:                    bitmap.setFormat(pnh.getFormat());
216:                    bitmap.setAlpha(pnh.hasTransparency());
217:                    bitmap.setColorTableSize(pnh.getColorTableSize());
218:                } catch (IOException e) {
219:                    throw new IVException(Resource.ERRREADINGPNG, e);
220:                }
221:                return bitmap;
222:            }
223:
224:            public void printContent(PrintStream out, String indent) {
225:                out.println(indent + "LossLessBitmap(" + Tag.tagNames[tagCode]
226:                        + "): id=" + getID() + " name='" + getName() + "'");
227:                out.print(indent
228:                        + "  format="
229:                        + (format == 3 ? "8 bit" : (format == 4 ? "16 bit"
230:                                : "32 bit")));
231:                out.println(", colorTableSize=" + colorTableSize + ", width="
232:                        + getWidth() + ", height=" + getHeight());
233:
234:                // print zlib data info
235:                /*        try {
236:                 InflaterInputStream zin = new InflaterInputStream( zlibData.getInputStream() );
237:                 FlashBuffer fob = new FlashBuffer(zin);
238:                 System.out.println( "size="+fob.getSize() );
239:                 out.println( indent+" colortable: RGB"+(isAlpha()?"A":"")+"["+(colorTableSize+1)+"]" );
240:                 int size = (isAlpha()?4:3)*(colorTableSize+1);
241:                 Util.dump(fob.getBuf(),0,size,out);
242:
243:                 int datasize = fob.getSize()-size;
244:                 int width = bounds.getWidth();
245:                 int height = bounds.getHeight();
246:                 int datasize1 = ((width+3)&~0x03)*height;
247:                 out.println( indent+" colordata: UI8["+datasize+"] (rounded(width)*height="+datasize1+")" );
248:                 Util.dump(fob.getBuf(),size,datasize,out);
249:                 } catch( IOException e ) {
250:                 }*/
251:            }
252:
253:            protected FlashItem copyInto(FlashItem item, ScriptCopier copier) {
254:                super .copyInto(item, copier);
255:                ((LLBitmap) item).zlibData = (DataMarker) zlibData.getCopy();
256:                ((LLBitmap) item).bounds = (Rectangle2D) bounds.clone();
257:                ((LLBitmap) item).format = format;
258:                ((LLBitmap) item).colorTableSize = colorTableSize;
259:                return item;
260:            }
261:
262:            public FlashItem getCopy(ScriptCopier copier) {
263:                return copyInto(new LLBitmap(), copier);
264:            }
265:
266:            /*
267:             public JPEGBitmap convertToJPEG( float quality ) {
268:
269:             if( isAlpha() ) {
270:             Log.logRB( Resource.STR, "Alpha channel has been stripped from image during conversion to JPEG" );
271:             }
272:
273:             InflaterInputStream zin = new InflaterInputStream( zlibData.getInputStream() );
274:             FlashBuffer fob = new FlashBuffer(zin);
275:
276:             int width = bounds.getWidth();
277:             int height = bounds.getHeight();
278:             int scansize = (width+3)&~0x03;
279:             int datasize = scansize*height;
280:
281:             int pixelsize = isAlpha()?4:3;
282:             int bitsperpixel;
283:
284:             // if 8bit image, then get rid of color table
285:             if( format == 3 ) {
286:             bitsperpixel = 24;
287:             //int newscansize = (width*3+3)&~0x03;
288:             int newscansize = scansize*3;
289:             FrashBuffer fb = new FlashBuffer(newscansize*height);
290:             byte[] newtable = fb.getBuf();
291:             byte[] table = fob.getBuf();
292:             int dataend = fob.getSize();
293:             int pos = (colorTableSize+1)*pixelsize;
294:             int newpos = 0;
295:             for( ; pos<dataend; pos++ ) {
296:             int idx = table[pos];
297:             newtable[newpos++] = table[idx];    // R
298:             newtable[newpos++] = table[idx+1];  // G
299:             newtable[newpos++] = table[idx+2];  // B
300:             }
301:             fob = fb;
302:             } else if( isAlpha() ) {
303:             // get rid of alpha
304:             }
305:
306:             DataBuffer db = new DataBufferByte(fob.getBuf(), fob.getSize());
307:             WritableRaster raster = Raster.createPackedRaster(db,width,height,,null);
308:             Raster raster = Raster.createRaster(sm,db,null);
309:
310:             fob = new FlashBuffer(fob.getSize()/4);
311:             OutputStream os = fob.getOutputStream();
312:             JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
313:             JPEGEncodeParam params = encoder.getDefaultJPEGEncodeParam(raster,colorID);
314:             params.setQuality(quality,true);
315:
316:             encoder.encode(raster,params);
317:
318:             }*/
319:        }
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