59 /** Indicates whether the header is read. */
60 private boolean gotHeader = false;
61
62 /** The original image width. */
63 private int width;
64
65 /** The original image height. */
66 private int height;
67
68 private int wbmpType;
69
70 private WBMPMetadata metadata;
71
72 /** Constructs {@code WBMPImageReader} from the provided
73 * {@code ImageReaderSpi}.
74 */
75 public WBMPImageReader(ImageReaderSpi originator) {
76 super(originator);
77 }
78
79 /** Overrides the method defined in the superclass. */
80 public void setInput(Object input,
81 boolean seekForwardOnly,
82 boolean ignoreMetadata) {
83 super.setInput(input, seekForwardOnly, ignoreMetadata);
84 iis = (ImageInputStream) input; // Always works
85 gotHeader = false;
86 }
87
88 /** Overrides the method defined in the superclass. */
89 public int getNumImages(boolean allowSearch) throws IOException {
90 if (iis == null) {
91 throw new IllegalStateException(I18N.getString("GetNumImages0"));
92 }
93 if (seekForwardOnly && allowSearch) {
94 throw new IllegalStateException(I18N.getString("GetNumImages1"));
95 }
96 return 1;
97 }
98
99 public int getWidth(int imageIndex) throws IOException {
100 checkIndex(imageIndex);
101 readHeader();
102 return width;
103 }
104
105 public int getHeight(int imageIndex) throws IOException {
106 checkIndex(imageIndex);
107 readHeader();
108 return height;
109 }
110
111 public boolean isRandomAccessEasy(int imageIndex) throws IOException {
112 checkIndex(imageIndex);
113 return true;
114 }
115
116 private void checkIndex(int imageIndex) {
117 if (imageIndex != 0) {
118 throw new IndexOutOfBoundsException(I18N.getString("WBMPImageReader0"));
119 }
120 }
121
122 public void readHeader() throws IOException {
123 if (gotHeader)
124 return;
125
126 if (iis == null) {
127 throw new IllegalStateException("Input source not set!");
128 }
129
130 metadata = new WBMPMetadata();
135 // check for valid wbmp image
136 if (fixHeaderField != 0
137 || !isValidWbmpType(wbmpType))
138 {
139 throw new IIOException(I18N.getString("WBMPImageReader2"));
140 }
141
142 metadata.wbmpType = wbmpType;
143
144 // Read image width
145 width = ReaderUtil.readMultiByteInteger(iis);
146 metadata.width = width;
147
148 // Read image height
149 height = ReaderUtil.readMultiByteInteger(iis);
150 metadata.height = height;
151
152 gotHeader = true;
153 }
154
155 public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex)
156 throws IOException {
157 checkIndex(imageIndex);
158 readHeader();
159
160 BufferedImage bi =
161 new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_BINARY);
162 ArrayList<ImageTypeSpecifier> list = new ArrayList<>(1);
163 list.add(new ImageTypeSpecifier(bi));
164 return list.iterator();
165 }
166
167 public ImageReadParam getDefaultReadParam() {
168 return new ImageReadParam();
169 }
170
171 public IIOMetadata getImageMetadata(int imageIndex)
172 throws IOException {
173 checkIndex(imageIndex);
174 if (metadata == null) {
175 readHeader();
176 }
177 return metadata;
178 }
179
180 public IIOMetadata getStreamMetadata() throws IOException {
181 return null;
182 }
183
184 public BufferedImage read(int imageIndex, ImageReadParam param)
185 throws IOException {
186
187 if (iis == null) {
188 throw new IllegalStateException(I18N.getString("WBMPImageReader1"));
189 }
190
191 checkIndex(imageIndex);
192 clearAbortRequest();
193 processImageStarted(imageIndex);
194 if (param == null)
195 param = getDefaultReadParam();
196
197 //read header
198 readHeader();
199
200 Rectangle sourceRegion = new Rectangle(0, 0, 0, 0);
201 Rectangle destinationRegion = new Rectangle(0, 0, 0, 0);
202
203 computeRegions(param, this.width, this.height,
279 data[k + destPos[i]] |= v << destOff[i];
280 }
281
282 k += lineStride;
283 iis.skipBytes(skipLength);
284 processImageUpdate(bi,
285 0, j,
286 destinationRegion.width, 1, 1, 1,
287 new int[]{0});
288 processImageProgress(100.0F*j/destinationRegion.height);
289 }
290 }
291
292 if (abortRequested())
293 processReadAborted();
294 else
295 processImageComplete();
296 return bi;
297 }
298
299 public boolean canReadRaster() {
300 return true;
301 }
302
303 public Raster readRaster(int imageIndex,
304 ImageReadParam param) throws IOException {
305 BufferedImage bi = read(imageIndex, param);
306 return bi.getData();
307 }
308
309 public void reset() {
310 super.reset();
311 iis = null;
312 gotHeader = false;
313 }
314
315 /*
316 * This method verifies that given byte is valid wbmp type marker.
317 * At the moment only 0x0 marker is described by wbmp spec.
318 */
319 boolean isValidWbmpType(int type) {
320 return type == 0;
321 }
322 }
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59 /** Indicates whether the header is read. */
60 private boolean gotHeader = false;
61
62 /** The original image width. */
63 private int width;
64
65 /** The original image height. */
66 private int height;
67
68 private int wbmpType;
69
70 private WBMPMetadata metadata;
71
72 /** Constructs {@code WBMPImageReader} from the provided
73 * {@code ImageReaderSpi}.
74 */
75 public WBMPImageReader(ImageReaderSpi originator) {
76 super(originator);
77 }
78
79 @Override
80 public void setInput(Object input,
81 boolean seekForwardOnly,
82 boolean ignoreMetadata) {
83 super.setInput(input, seekForwardOnly, ignoreMetadata);
84 iis = (ImageInputStream) input; // Always works
85 gotHeader = false;
86 }
87
88 @Override
89 public int getNumImages(boolean allowSearch) throws IOException {
90 if (iis == null) {
91 throw new IllegalStateException(I18N.getString("GetNumImages0"));
92 }
93 if (seekForwardOnly && allowSearch) {
94 throw new IllegalStateException(I18N.getString("GetNumImages1"));
95 }
96 return 1;
97 }
98
99 @Override
100 public int getWidth(int imageIndex) throws IOException {
101 checkIndex(imageIndex);
102 readHeader();
103 return width;
104 }
105
106 @Override
107 public int getHeight(int imageIndex) throws IOException {
108 checkIndex(imageIndex);
109 readHeader();
110 return height;
111 }
112
113 @Override
114 public boolean isRandomAccessEasy(int imageIndex) throws IOException {
115 checkIndex(imageIndex);
116 return true;
117 }
118
119 private void checkIndex(int imageIndex) {
120 if (imageIndex != 0) {
121 throw new IndexOutOfBoundsException(I18N.getString("WBMPImageReader0"));
122 }
123 }
124
125 public void readHeader() throws IOException {
126 if (gotHeader)
127 return;
128
129 if (iis == null) {
130 throw new IllegalStateException("Input source not set!");
131 }
132
133 metadata = new WBMPMetadata();
138 // check for valid wbmp image
139 if (fixHeaderField != 0
140 || !isValidWbmpType(wbmpType))
141 {
142 throw new IIOException(I18N.getString("WBMPImageReader2"));
143 }
144
145 metadata.wbmpType = wbmpType;
146
147 // Read image width
148 width = ReaderUtil.readMultiByteInteger(iis);
149 metadata.width = width;
150
151 // Read image height
152 height = ReaderUtil.readMultiByteInteger(iis);
153 metadata.height = height;
154
155 gotHeader = true;
156 }
157
158 @Override
159 public Iterator<ImageTypeSpecifier> getImageTypes(int imageIndex)
160 throws IOException {
161 checkIndex(imageIndex);
162 readHeader();
163
164 BufferedImage bi =
165 new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_BINARY);
166 ArrayList<ImageTypeSpecifier> list = new ArrayList<>(1);
167 list.add(new ImageTypeSpecifier(bi));
168 return list.iterator();
169 }
170
171 @Override
172 public ImageReadParam getDefaultReadParam() {
173 return new ImageReadParam();
174 }
175
176 @Override
177 public IIOMetadata getImageMetadata(int imageIndex)
178 throws IOException {
179 checkIndex(imageIndex);
180 if (metadata == null) {
181 readHeader();
182 }
183 return metadata;
184 }
185
186 @Override
187 public IIOMetadata getStreamMetadata() throws IOException {
188 return null;
189 }
190
191 @Override
192 public BufferedImage read(int imageIndex, ImageReadParam param)
193 throws IOException {
194
195 if (iis == null) {
196 throw new IllegalStateException(I18N.getString("WBMPImageReader1"));
197 }
198
199 checkIndex(imageIndex);
200 clearAbortRequest();
201 processImageStarted(imageIndex);
202 if (param == null)
203 param = getDefaultReadParam();
204
205 //read header
206 readHeader();
207
208 Rectangle sourceRegion = new Rectangle(0, 0, 0, 0);
209 Rectangle destinationRegion = new Rectangle(0, 0, 0, 0);
210
211 computeRegions(param, this.width, this.height,
287 data[k + destPos[i]] |= v << destOff[i];
288 }
289
290 k += lineStride;
291 iis.skipBytes(skipLength);
292 processImageUpdate(bi,
293 0, j,
294 destinationRegion.width, 1, 1, 1,
295 new int[]{0});
296 processImageProgress(100.0F*j/destinationRegion.height);
297 }
298 }
299
300 if (abortRequested())
301 processReadAborted();
302 else
303 processImageComplete();
304 return bi;
305 }
306
307 @Override
308 public boolean canReadRaster() {
309 return true;
310 }
311
312 @Override
313 public Raster readRaster(int imageIndex,
314 ImageReadParam param) throws IOException {
315 BufferedImage bi = read(imageIndex, param);
316 return bi.getData();
317 }
318
319 @Override
320 public void reset() {
321 super.reset();
322 iis = null;
323 gotHeader = false;
324 }
325
326 /*
327 * This method verifies that given byte is valid wbmp type marker.
328 * At the moment only 0x0 marker is described by wbmp spec.
329 */
330 boolean isValidWbmpType(int type) {
331 return type == 0;
332 }
333 }
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