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comparison dwt/internal/image/PngDeflater.d @ 7:e831403a80a9

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Add 'cast' to casts
author Frank Benoit <benoit@tionex.de>
date Wed, 27 Aug 2008 14:30:35 +0200
parents 1a8b3cb347e0
children 5123b17c98ef
comparison
equal deleted inserted replaced
6:b903c16b6f48 7:e831403a80a9
183 183
184 }; 184 };
185 185
186 void writeShortLSB(ByteArrayOutputStream baos, int theShort) { 186 void writeShortLSB(ByteArrayOutputStream baos, int theShort) {
187 187
188 byte byte1 = (byte) (theShort & 0xff); 188 byte byte1 = cast(byte) (theShort & 0xff);
189 byte byte2 = (byte) ((theShort >> 8) & 0xff); 189 byte byte2 = cast(byte) ((theShort >> 8) & 0xff);
190 byte[] temp = {byte1, byte2}; 190 byte[] temp = {byte1, byte2};
191 baos.write(temp, 0, 2); 191 baos.write(temp, 0, 2);
192 192
193 } 193 }
194 194
195 void writeInt(ByteArrayOutputStream baos, int theInt) { 195 void writeInt(ByteArrayOutputStream baos, int theInt) {
196 196
197 byte byte1 = (byte) ((theInt >> 24) & 0xff); 197 byte byte1 = cast(byte) ((theInt >> 24) & 0xff);
198 byte byte2 = (byte) ((theInt >> 16) & 0xff); 198 byte byte2 = cast(byte) ((theInt >> 16) & 0xff);
199 byte byte3 = (byte) ((theInt >> 8) & 0xff); 199 byte byte3 = cast(byte) ((theInt >> 8) & 0xff);
200 byte byte4 = (byte) (theInt & 0xff); 200 byte byte4 = cast(byte) (theInt & 0xff);
201 byte[] temp = {byte1, byte2, byte3, byte4}; 201 byte[] temp = {byte1, byte2, byte3, byte4};
202 baos.write(temp, 0, 4); 202 baos.write(temp, 0, 4);
203 203
204 } 204 }
205 205
227 void writeBits(int value, int count) { 227 void writeBits(int value, int count) {
228 228
229 buffer |= value << bitCount; 229 buffer |= value << bitCount;
230 bitCount += count; 230 bitCount += count;
231 if (bitCount >= 16) { 231 if (bitCount >= 16) {
232 bytes.write((byte) buffer); 232 bytes.write(cast(byte) buffer);
233 bytes.write((byte) (buffer >>> 8)); 233 bytes.write(cast(byte) (buffer >>> 8));
234 buffer >>>= 16; 234 buffer >>>= 16;
235 bitCount -= 16; 235 bitCount -= 16;
236 } 236 }
237 237
238 } 238 }
239 239
240 void alignToByte() { 240 void alignToByte() {
241 241
242 if (bitCount > 0) { 242 if (bitCount > 0) {
243 bytes.write((byte) buffer); 243 bytes.write(cast(byte) buffer);
244 if (bitCount > 8) bytes.write((byte) (buffer >>> 8)); 244 if (bitCount > 8) bytes.write(cast(byte) (buffer >>> 8));
245 } 245 }
246 buffer = 0; 246 buffer = 0;
247 bitCount = 0; 247 bitCount = 0;
248 248
249 } 249 }
572 blockLength = 65535; 572 blockLength = 65535;
573 BFINAL = 0x00; 573 BFINAL = 0x00;
574 } 574 }
575 575
576 // write data header 576 // write data header
577 bytes.write((byte) BFINAL); 577 bytes.write(cast(byte) BFINAL);
578 writeShortLSB(bytes, blockLength); // LEN 578 writeShortLSB(bytes, blockLength); // LEN
579 writeShortLSB(bytes, blockLength ^ 0xffff); // NLEN (one's complement of LEN) 579 writeShortLSB(bytes, blockLength ^ 0xffff); // NLEN (one's complement of LEN)
580 580
581 // write actual data 581 // write actual data
582 bytes.write(in, start, blockLength); 582 bytes.write(in, start, blockLength);
592 592
593 in = input; 593 in = input;
594 inLength = input.length; 594 inLength = input.length;
595 595
596 // write zlib header 596 // write zlib header
597 bytes.write((byte) 0x78); // window size = 0x70 (32768), compression method = 0x08 597 bytes.write(cast(byte) 0x78); // window size = 0x70 (32768), compression method = 0x08
598 bytes.write((byte) 0x9C); // compression level = 0x80 (default), check bits = 0x1C 598 bytes.write(cast(byte) 0x9C); // compression level = 0x80 (default), check bits = 0x1C
599 599
600 // compute checksum 600 // compute checksum
601 for (int i = 0; i < inLength; i++) { 601 for (int i = 0; i < inLength; i++) {
602 updateAdler(in[i]); 602 updateAdler(in[i]);
603 } 603 }