| File: | jdk/src/java.desktop/share/native/libjavajpeg/imageioJPEG.c |
| Warning: | line 2955, column 9 Value stored to 'hlen' is never read |
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| 1 | /* |
| 2 | * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Oracle designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Oracle in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 22 | * or visit www.oracle.com if you need additional information or have any |
| 23 | * questions. |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * This file contains the code to link the Java Image I/O JPEG plug-in |
| 28 | * to the IJG library used to read and write JPEG files. Much of it has |
| 29 | * been copied, updated, and annotated from the jpegdecoder.c AWT JPEG |
| 30 | * decoder. Where that code was unclear, the present author has either |
| 31 | * rewritten the relevant section or commented it for the sake of future |
| 32 | * maintainers. |
| 33 | * |
| 34 | * In particular, the way the AWT code handled progressive JPEGs seems |
| 35 | * to me to be only accidentally correct and somewhat inefficient. The |
| 36 | * scheme used here represents the way I think it should work. (REV 11/00) |
| 37 | */ |
| 38 | |
| 39 | #include <stdlib.h> |
| 40 | #include <setjmp.h> |
| 41 | #include <assert.h> |
| 42 | #include <string.h> |
| 43 | #include <limits.h> |
| 44 | |
| 45 | /* java native interface headers */ |
| 46 | #include "jni.h" |
| 47 | #include "jni_util.h" |
| 48 | |
| 49 | #include "com_sun_imageio_plugins_jpeg_JPEGImageReader.h" |
| 50 | #include "com_sun_imageio_plugins_jpeg_JPEGImageWriter.h" |
| 51 | |
| 52 | /* headers from the JPEG library */ |
| 53 | #include <jpeglib.h> |
| 54 | #include <jerror.h> |
| 55 | |
| 56 | #undef MAX |
| 57 | #define MAX(a,b)((a) > (b) ? (a) : (b)) ((a) > (b) ? (a) : (b)) |
| 58 | |
| 59 | #ifdef __APPLE__ |
| 60 | /* use setjmp/longjmp versions that do not save/restore the signal mask */ |
| 61 | #define setjmp _setjmp |
| 62 | #define longjmp _longjmp |
| 63 | #endif |
| 64 | |
| 65 | /* Cached Java method ids */ |
| 66 | static jmethodID JPEGImageReader_readInputDataID; |
| 67 | static jmethodID JPEGImageReader_skipInputBytesID; |
| 68 | static jmethodID JPEGImageReader_warningOccurredID; |
| 69 | static jmethodID JPEGImageReader_warningWithMessageID; |
| 70 | static jmethodID JPEGImageReader_setImageDataID; |
| 71 | static jmethodID JPEGImageReader_acceptPixelsID; |
| 72 | static jmethodID JPEGImageReader_pushBackID; |
| 73 | static jmethodID JPEGImageReader_passStartedID; |
| 74 | static jmethodID JPEGImageReader_passCompleteID; |
| 75 | static jmethodID JPEGImageReader_skipPastImageID; |
| 76 | static jmethodID JPEGImageWriter_writeOutputDataID; |
| 77 | static jmethodID JPEGImageWriter_warningOccurredID; |
| 78 | static jmethodID JPEGImageWriter_warningWithMessageID; |
| 79 | static jmethodID JPEGImageWriter_writeMetadataID; |
| 80 | static jmethodID JPEGImageWriter_grabPixelsID; |
| 81 | static jfieldID JPEGQTable_tableID; |
| 82 | static jfieldID JPEGHuffmanTable_lengthsID; |
| 83 | static jfieldID JPEGHuffmanTable_valuesID; |
| 84 | |
| 85 | /* |
| 86 | * Defined in jpegdecoder.c. Copy code from there if and |
| 87 | * when that disappears. */ |
| 88 | extern JavaVM *the_jvm; |
| 89 | |
| 90 | /* |
| 91 | * The following sets of defines must match the warning messages in the |
| 92 | * Java code. |
| 93 | */ |
| 94 | |
| 95 | /* Reader warnings */ |
| 96 | #define READ_NO_EOI0 0 |
| 97 | |
| 98 | /* Writer warnings */ |
| 99 | |
| 100 | /* Return codes for various ops */ |
| 101 | #define OK1 1 |
| 102 | #define NOT_OK0 0 |
| 103 | |
| 104 | /* |
| 105 | * First we define two objects, one for the stream and buffer and one |
| 106 | * for pixels. Both contain references to Java objects and pointers to |
| 107 | * pinned arrays. These objects can be used for either input or |
| 108 | * output. Pixels can be accessed as either INT32s or bytes. |
| 109 | * Every I/O operation will have one of each these objects, one for |
| 110 | * the stream and the other to hold pixels, regardless of the I/O direction. |
| 111 | */ |
| 112 | |
| 113 | /******************** StreamBuffer definition ************************/ |
| 114 | |
| 115 | typedef struct streamBufferStruct { |
| 116 | jweak ioRef; // weak reference to a provider of I/O routines |
| 117 | jbyteArray hstreamBuffer; // Handle to a Java buffer for the stream |
| 118 | JOCTET *buf; // Pinned buffer pointer */ |
| 119 | size_t bufferOffset; // holds offset between unpin and the next pin |
| 120 | size_t bufferLength; // Allocated, nut just used |
| 121 | int suspendable; // Set to true to suspend input |
| 122 | long remaining_skip; // Used only on input |
| 123 | } streamBuffer, *streamBufferPtr; |
| 124 | |
| 125 | /* |
| 126 | * This buffer size was set to 64K in the old classes, 4K by default in the |
| 127 | * IJG library, with the comment "an efficiently freadable size", and 1K |
| 128 | * in AWT. |
| 129 | * Unlike in the other Java designs, these objects will persist, so 64K |
| 130 | * seems too big and 1K seems too small. If 4K was good enough for the |
| 131 | * IJG folks, it's good enough for me. |
| 132 | */ |
| 133 | #define STREAMBUF_SIZE4096 4096 |
| 134 | |
| 135 | #define GET_IO_REF(io_name)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((io_name) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo); } } while (0) \ |
| 136 | do { \ |
| 137 | if ((*env)->IsSameObject(env, sb->ioRef, NULL((void*)0)) || \ |
| 138 | ((io_name) = (*env)->NewLocalRef(env, sb->ioRef)) == NULL((void*)0)) \ |
| 139 | { \ |
| 140 | cinfo->err->error_exit((j_common_ptr) cinfo); \ |
| 141 | } \ |
| 142 | } while (0) \ |
| 143 | |
| 144 | /* |
| 145 | * Used to signal that no data need be restored from an unpin to a pin. |
| 146 | * I.e. the buffer is empty. |
| 147 | */ |
| 148 | #define NO_DATA((size_t)-1) ((size_t)-1) |
| 149 | |
| 150 | // Forward reference |
| 151 | static void resetStreamBuffer(JNIEnv *env, streamBufferPtr sb); |
| 152 | |
| 153 | /* |
| 154 | * Initialize a freshly allocated StreamBuffer object. The stream is left |
| 155 | * null, as it will be set from Java by setSource, but the buffer object |
| 156 | * is created and a global reference kept. Returns OK on success, NOT_OK |
| 157 | * if allocating the buffer or getting a global reference for it failed. |
| 158 | */ |
| 159 | static int initStreamBuffer(JNIEnv *env, streamBufferPtr sb) { |
| 160 | /* Initialize a new buffer */ |
| 161 | jbyteArray hInputBuffer = (*env)->NewByteArray(env, STREAMBUF_SIZE4096); |
| 162 | if (hInputBuffer == NULL((void*)0)) { |
| 163 | (*env)->ExceptionClear(env); |
| 164 | JNU_ThrowByName( env, |
| 165 | "java/lang/OutOfMemoryError", |
| 166 | "Initializing Reader"); |
| 167 | return NOT_OK0; |
| 168 | } |
| 169 | sb->bufferLength = (*env)->GetArrayLength(env, hInputBuffer); |
| 170 | sb->hstreamBuffer = (*env)->NewGlobalRef(env, hInputBuffer); |
| 171 | if (sb->hstreamBuffer == NULL((void*)0)) { |
| 172 | JNU_ThrowByName( env, |
| 173 | "java/lang/OutOfMemoryError", |
| 174 | "Initializing Reader"); |
| 175 | return NOT_OK0; |
| 176 | } |
| 177 | |
| 178 | |
| 179 | sb->ioRef = NULL((void*)0); |
| 180 | |
| 181 | sb->buf = NULL((void*)0); |
| 182 | |
| 183 | resetStreamBuffer(env, sb); |
| 184 | |
| 185 | return OK1; |
| 186 | } |
| 187 | |
| 188 | /* |
| 189 | * Free all resources associated with this streamBuffer. This must |
| 190 | * be called to dispose the object to avoid leaking global references, as |
| 191 | * resetStreamBuffer does not release the buffer reference. |
| 192 | */ |
| 193 | static void destroyStreamBuffer(JNIEnv *env, streamBufferPtr sb) { |
| 194 | resetStreamBuffer(env, sb); |
| 195 | if (sb->hstreamBuffer != NULL((void*)0)) { |
| 196 | (*env)->DeleteGlobalRef(env, sb->hstreamBuffer); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | // Forward reference |
| 201 | static void unpinStreamBuffer(JNIEnv *env, |
| 202 | streamBufferPtr sb, |
| 203 | const JOCTET *next_byte); |
| 204 | /* |
| 205 | * Resets the state of a streamBuffer object that has been in use. |
| 206 | * The global reference to the stream is released, but the reference |
| 207 | * to the buffer is retained. The buffer is unpinned if it was pinned. |
| 208 | * All other state is reset. |
| 209 | */ |
| 210 | static void resetStreamBuffer(JNIEnv *env, streamBufferPtr sb) { |
| 211 | if (sb->ioRef != NULL((void*)0)) { |
| 212 | (*env)->DeleteWeakGlobalRef(env, sb->ioRef); |
| 213 | sb->ioRef = NULL((void*)0); |
| 214 | } |
| 215 | unpinStreamBuffer(env, sb, NULL((void*)0)); |
| 216 | sb->bufferOffset = NO_DATA((size_t)-1); |
| 217 | sb->suspendable = FALSE0; |
| 218 | sb->remaining_skip = 0; |
| 219 | } |
| 220 | |
| 221 | /* |
| 222 | * Pins the data buffer associated with this stream. Returns OK on |
| 223 | * success, NOT_OK on failure, as GetPrimitiveArrayCritical may fail. |
| 224 | */ |
| 225 | static int pinStreamBuffer(JNIEnv *env, |
| 226 | streamBufferPtr sb, |
| 227 | const JOCTET **next_byte) { |
| 228 | if (sb->hstreamBuffer != NULL((void*)0)) { |
| 229 | assert(sb->buf == NULL)((sb->buf == ((void*)0)) ? (void) (0) : __assert_fail ("sb->buf == NULL" , "/home/daniel/Projects/java/jdk/src/java.desktop/share/native/libjavajpeg/imageioJPEG.c" , 229, __extension__ __PRETTY_FUNCTION__)); |
| 230 | sb->buf = |
| 231 | (JOCTET *)(*env)->GetPrimitiveArrayCritical(env, |
| 232 | sb->hstreamBuffer, |
| 233 | NULL((void*)0)); |
| 234 | if (sb->buf == NULL((void*)0)) { |
| 235 | return NOT_OK0; |
| 236 | } |
| 237 | if (sb->bufferOffset != NO_DATA((size_t)-1)) { |
| 238 | *next_byte = sb->buf + sb->bufferOffset; |
| 239 | } |
| 240 | } |
| 241 | return OK1; |
| 242 | } |
| 243 | |
| 244 | /* |
| 245 | * Unpins the data buffer associated with this stream. |
| 246 | */ |
| 247 | static void unpinStreamBuffer(JNIEnv *env, |
| 248 | streamBufferPtr sb, |
| 249 | const JOCTET *next_byte) { |
| 250 | if (sb->buf != NULL((void*)0)) { |
| 251 | assert(sb->hstreamBuffer != NULL)((sb->hstreamBuffer != ((void*)0)) ? (void) (0) : __assert_fail ("sb->hstreamBuffer != NULL", "/home/daniel/Projects/java/jdk/src/java.desktop/share/native/libjavajpeg/imageioJPEG.c" , 251, __extension__ __PRETTY_FUNCTION__)); |
| 252 | if (next_byte == NULL((void*)0)) { |
| 253 | sb->bufferOffset = NO_DATA((size_t)-1); |
| 254 | } else { |
| 255 | sb->bufferOffset = next_byte - sb->buf; |
| 256 | } |
| 257 | (*env)->ReleasePrimitiveArrayCritical(env, |
| 258 | sb->hstreamBuffer, |
| 259 | sb->buf, |
| 260 | 0); |
| 261 | sb->buf = NULL((void*)0); |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | /* |
| 266 | * Clear out the streamBuffer. This just invalidates the data in the buffer. |
| 267 | */ |
| 268 | static void clearStreamBuffer(streamBufferPtr sb) { |
| 269 | sb->bufferOffset = NO_DATA((size_t)-1); |
| 270 | } |
| 271 | |
| 272 | /*************************** end StreamBuffer definition *************/ |
| 273 | |
| 274 | /*************************** Pixel Buffer definition ******************/ |
| 275 | |
| 276 | typedef struct pixelBufferStruct { |
| 277 | jobject hpixelObject; // Usually a DataBuffer bank as a byte array |
| 278 | unsigned int byteBufferLength; |
| 279 | union pixptr { |
| 280 | INT32 *ip; // Pinned buffer pointer, as 32-bit ints |
| 281 | unsigned char *bp; // Pinned buffer pointer, as bytes |
| 282 | } buf; |
| 283 | } pixelBuffer, *pixelBufferPtr; |
| 284 | |
| 285 | /* |
| 286 | * Initialize a freshly allocated PixelBuffer. All fields are simply |
| 287 | * set to NULL, as we have no idea what size buffer we will need. |
| 288 | */ |
| 289 | static void initPixelBuffer(pixelBufferPtr pb) { |
| 290 | pb->hpixelObject = NULL((void*)0); |
| 291 | pb->byteBufferLength = 0; |
| 292 | pb->buf.ip = NULL((void*)0); |
| 293 | } |
| 294 | |
| 295 | /* |
| 296 | * Set the pixelBuffer to use the given buffer, acquiring a new global |
| 297 | * reference for it. Returns OK on success, NOT_OK on failure. |
| 298 | */ |
| 299 | static int setPixelBuffer(JNIEnv *env, pixelBufferPtr pb, jobject obj) { |
| 300 | pb->hpixelObject = (*env)->NewGlobalRef(env, obj); |
| 301 | if (pb->hpixelObject == NULL((void*)0)) { |
| 302 | JNU_ThrowByName( env, |
| 303 | "java/lang/OutOfMemoryError", |
| 304 | "Setting Pixel Buffer"); |
| 305 | return NOT_OK0; |
| 306 | } |
| 307 | pb->byteBufferLength = (*env)->GetArrayLength(env, pb->hpixelObject); |
| 308 | return OK1; |
| 309 | } |
| 310 | |
| 311 | // Forward reference |
| 312 | static void unpinPixelBuffer(JNIEnv *env, pixelBufferPtr pb); |
| 313 | |
| 314 | /* |
| 315 | * Resets a pixel buffer to its initial state. Unpins any pixel buffer, |
| 316 | * releases the global reference, and resets fields to NULL. Use this |
| 317 | * method to dispose the object as well (there is no destroyPixelBuffer). |
| 318 | */ |
| 319 | static void resetPixelBuffer(JNIEnv *env, pixelBufferPtr pb) { |
| 320 | if (pb->hpixelObject != NULL((void*)0)) { |
| 321 | unpinPixelBuffer(env, pb); |
| 322 | (*env)->DeleteGlobalRef(env, pb->hpixelObject); |
| 323 | pb->hpixelObject = NULL((void*)0); |
| 324 | pb->byteBufferLength = 0; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /* |
| 329 | * Pins the data buffer. Returns OK on success, NOT_OK on failure. |
| 330 | */ |
| 331 | static int pinPixelBuffer(JNIEnv *env, pixelBufferPtr pb) { |
| 332 | if (pb->hpixelObject != NULL((void*)0)) { |
| 333 | assert(pb->buf.ip == NULL)((pb->buf.ip == ((void*)0)) ? (void) (0) : __assert_fail ( "pb->buf.ip == NULL", "/home/daniel/Projects/java/jdk/src/java.desktop/share/native/libjavajpeg/imageioJPEG.c" , 333, __extension__ __PRETTY_FUNCTION__)); |
| 334 | pb->buf.bp = (unsigned char *)(*env)->GetPrimitiveArrayCritical |
| 335 | (env, pb->hpixelObject, NULL((void*)0)); |
| 336 | if (pb->buf.bp == NULL((void*)0)) { |
| 337 | return NOT_OK0; |
| 338 | } |
| 339 | } |
| 340 | return OK1; |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * Unpins the data buffer. |
| 345 | */ |
| 346 | static void unpinPixelBuffer(JNIEnv *env, pixelBufferPtr pb) { |
| 347 | |
| 348 | if (pb->buf.ip != NULL((void*)0)) { |
| 349 | assert(pb->hpixelObject != NULL)((pb->hpixelObject != ((void*)0)) ? (void) (0) : __assert_fail ("pb->hpixelObject != NULL", "/home/daniel/Projects/java/jdk/src/java.desktop/share/native/libjavajpeg/imageioJPEG.c" , 349, __extension__ __PRETTY_FUNCTION__)); |
| 350 | (*env)->ReleasePrimitiveArrayCritical(env, |
| 351 | pb->hpixelObject, |
| 352 | pb->buf.ip, |
| 353 | 0); |
| 354 | pb->buf.ip = NULL((void*)0); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | /********************* end PixelBuffer definition *******************/ |
| 359 | |
| 360 | /********************* ImageIOData definition ***********************/ |
| 361 | |
| 362 | #define MAX_BANDS4 4 |
| 363 | #define JPEG_BAND_SIZE8 8 |
| 364 | #define NUM_BAND_VALUES(1<<8) (1<<JPEG_BAND_SIZE8) |
| 365 | #define MAX_JPEG_BAND_VALUE((1<<8)-1) (NUM_BAND_VALUES(1<<8)-1) |
| 366 | #define HALF_MAX_JPEG_BAND_VALUE(((1<<8)-1)>>1) (MAX_JPEG_BAND_VALUE((1<<8)-1)>>1) |
| 367 | |
| 368 | /* The number of possible incoming values to be scaled. */ |
| 369 | #define NUM_INPUT_VALUES(1 << 16) (1 << 16) |
| 370 | |
| 371 | /* |
| 372 | * The principal imageioData object, opaque to I/O direction. |
| 373 | * Each JPEGImageReader will have associated with it a |
| 374 | * jpeg_decompress_struct, and similarly each JPEGImageWriter will |
| 375 | * have associated with it a jpeg_compress_struct. In order to |
| 376 | * ensure that these associations persist from one native call to |
| 377 | * the next, and to provide a central locus of imageio-specific |
| 378 | * data, we define an imageioData struct containing references |
| 379 | * to the Java object and the IJG structs. The functions |
| 380 | * that manipulate these objects know whether input or output is being |
| 381 | * performed and therefore know how to manipulate the contents correctly. |
| 382 | * If for some reason they don't, the direction can be determined by |
| 383 | * checking the is_decompressor field of the jpegObj. |
| 384 | * In order for lower level code to determine a |
| 385 | * Java object given an IJG struct, such as for dispatching warnings, |
| 386 | * we use the client_data field of the jpeg object to store a pointer |
| 387 | * to the imageIOData object. Maintenance of this pointer is performed |
| 388 | * exclusively within the following access functions. If you |
| 389 | * change that, you run the risk of dangling pointers. |
| 390 | */ |
| 391 | typedef struct imageIODataStruct { |
| 392 | j_common_ptr jpegObj; // Either struct is fine |
| 393 | jobject imageIOobj; // A JPEGImageReader or a JPEGImageWriter |
| 394 | |
| 395 | streamBuffer streamBuf; // Buffer for the stream |
| 396 | pixelBuffer pixelBuf; // Buffer for pixels |
| 397 | |
| 398 | jboolean abortFlag; // Passed down from Java abort method |
| 399 | } imageIOData, *imageIODataPtr; |
| 400 | |
| 401 | /* |
| 402 | * Allocate and initialize a new imageIOData object to associate the |
| 403 | * jpeg object and the Java object. Returns a pointer to the new object |
| 404 | * on success, NULL on failure. |
| 405 | */ |
| 406 | static imageIODataPtr initImageioData (JNIEnv *env, |
| 407 | j_common_ptr cinfo, |
| 408 | jobject obj) { |
| 409 | |
| 410 | imageIODataPtr data = (imageIODataPtr) malloc (sizeof(imageIOData)); |
| 411 | if (data == NULL((void*)0)) { |
| 412 | return NULL((void*)0); |
| 413 | } |
| 414 | |
| 415 | data->jpegObj = cinfo; |
| 416 | cinfo->client_data = data; |
| 417 | |
| 418 | #ifdef DEBUG_IIO_JPEG |
| 419 | printf("new structures: data is %p, cinfo is %p\n", data, cinfo)__printf_chk (2 - 1, "new structures: data is %p, cinfo is %p\n" , data, cinfo); |
| 420 | #endif |
| 421 | |
| 422 | data->imageIOobj = (*env)->NewWeakGlobalRef(env, obj); |
| 423 | if (data->imageIOobj == NULL((void*)0)) { |
| 424 | free (data); |
| 425 | return NULL((void*)0); |
| 426 | } |
| 427 | if (initStreamBuffer(env, &data->streamBuf) == NOT_OK0) { |
| 428 | (*env)->DeleteWeakGlobalRef(env, data->imageIOobj); |
| 429 | free (data); |
| 430 | return NULL((void*)0); |
| 431 | } |
| 432 | initPixelBuffer(&data->pixelBuf); |
| 433 | |
| 434 | data->abortFlag = JNI_FALSE0; |
| 435 | |
| 436 | return data; |
| 437 | } |
| 438 | |
| 439 | /* |
| 440 | * Resets the imageIOData object to its initial state, as though |
| 441 | * it had just been allocated and initialized. |
| 442 | */ |
| 443 | static void resetImageIOData(JNIEnv *env, imageIODataPtr data) { |
| 444 | resetStreamBuffer(env, &data->streamBuf); |
| 445 | resetPixelBuffer(env, &data->pixelBuf); |
| 446 | data->abortFlag = JNI_FALSE0; |
| 447 | } |
| 448 | |
| 449 | /* |
| 450 | * Releases all resources held by this object and its subobjects, |
| 451 | * frees the object, and returns the jpeg object. This method must |
| 452 | * be called to avoid leaking global references. |
| 453 | * Note that the jpeg object is not freed or destroyed, as that is |
| 454 | * the client's responsibility, although the client_data field is |
| 455 | * cleared. |
| 456 | */ |
| 457 | static j_common_ptr destroyImageioData(JNIEnv *env, imageIODataPtr data) { |
| 458 | j_common_ptr ret = data->jpegObj; |
| 459 | (*env)->DeleteWeakGlobalRef(env, data->imageIOobj); |
| 460 | destroyStreamBuffer(env, &data->streamBuf); |
| 461 | resetPixelBuffer(env, &data->pixelBuf); |
| 462 | ret->client_data = NULL((void*)0); |
| 463 | free(data); |
| 464 | return ret; |
| 465 | } |
| 466 | |
| 467 | /******************** end ImageIOData definition ***********************/ |
| 468 | |
| 469 | /******************** Java array pinning and unpinning *****************/ |
| 470 | |
| 471 | /* We use Get/ReleasePrimitiveArrayCritical functions to avoid |
| 472 | * the need to copy array elements for the above two objects. |
| 473 | * |
| 474 | * MAKE SURE TO: |
| 475 | * |
| 476 | * - carefully insert pairs of RELEASE_ARRAYS and GET_ARRAYS around |
| 477 | * callbacks to Java. |
| 478 | * - call RELEASE_ARRAYS before returning to Java. |
| 479 | * |
| 480 | * Otherwise things will go horribly wrong. There may be memory leaks, |
| 481 | * excessive pinning, or even VM crashes! |
| 482 | * |
| 483 | * Note that GetPrimitiveArrayCritical may fail! |
| 484 | */ |
| 485 | |
| 486 | /* |
| 487 | * Release (unpin) all the arrays in use during a read. |
| 488 | */ |
| 489 | static void RELEASE_ARRAYS(JNIEnv *env, imageIODataPtr data, const JOCTET *next_byte) |
| 490 | { |
| 491 | unpinStreamBuffer(env, &data->streamBuf, next_byte); |
| 492 | |
| 493 | unpinPixelBuffer(env, &data->pixelBuf); |
| 494 | |
| 495 | } |
| 496 | |
| 497 | /* |
| 498 | * Get (pin) all the arrays in use during a read. |
| 499 | */ |
| 500 | static int GET_ARRAYS(JNIEnv *env, imageIODataPtr data, const JOCTET **next_byte) { |
| 501 | if (pinStreamBuffer(env, &data->streamBuf, next_byte) == NOT_OK0) { |
| 502 | return NOT_OK0; |
| 503 | } |
| 504 | |
| 505 | if (pinPixelBuffer(env, &data->pixelBuf) == NOT_OK0) { |
| 506 | RELEASE_ARRAYS(env, data, *next_byte); |
| 507 | return NOT_OK0; |
| 508 | } |
| 509 | return OK1; |
| 510 | } |
| 511 | |
| 512 | /****** end of Java array pinning and unpinning ***********/ |
| 513 | |
| 514 | /****** Error Handling *******/ |
| 515 | |
| 516 | /* |
| 517 | * Set up error handling to use setjmp/longjmp. This is the third such |
| 518 | * setup, as both the AWT jpeg decoder and the com.sun... JPEG classes |
| 519 | * setup thier own. Ultimately these should be integrated, as they all |
| 520 | * do pretty much the same thing. |
| 521 | */ |
| 522 | |
| 523 | struct sun_jpeg_error_mgr { |
| 524 | struct jpeg_error_mgr pub; /* "public" fields */ |
| 525 | |
| 526 | jmp_buf setjmp_buffer; /* for return to caller */ |
| 527 | }; |
| 528 | |
| 529 | typedef struct sun_jpeg_error_mgr * sun_jpeg_error_ptr; |
| 530 | |
| 531 | /* |
| 532 | * Here's the routine that will replace the standard error_exit method: |
| 533 | */ |
| 534 | |
| 535 | METHODDEF(void)static void |
| 536 | sun_jpeg_error_exit (j_common_ptr cinfo) |
| 537 | { |
| 538 | /* cinfo->err really points to a sun_jpeg_error_mgr struct */ |
| 539 | sun_jpeg_error_ptr myerr = (sun_jpeg_error_ptr) cinfo->err; |
| 540 | |
| 541 | /* For Java, we will format the message and put it in the error we throw. */ |
| 542 | |
| 543 | /* Return control to the setjmp point */ |
| 544 | longjmp(myerr->setjmp_buffer, 1); |
| 545 | } |
| 546 | |
| 547 | /* |
| 548 | * Error Message handling |
| 549 | * |
| 550 | * This overrides the output_message method to send JPEG messages |
| 551 | * |
| 552 | */ |
| 553 | |
| 554 | METHODDEF(void)static void |
| 555 | sun_jpeg_output_message (j_common_ptr cinfo) |
| 556 | { |
| 557 | char buffer[JMSG_LENGTH_MAX200]; |
| 558 | jstring string; |
| 559 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 560 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 561 | jobject theObject; |
| 562 | |
| 563 | /* Create the message */ |
| 564 | (*cinfo->err->format_message) (cinfo, buffer); |
| 565 | |
| 566 | // Create a new java string from the message |
| 567 | string = (*env)->NewStringUTF(env, buffer); |
| 568 | CHECK_NULL(string)do { if ((string) == ((void*)0)) { return; } } while (0); |
| 569 | |
| 570 | theObject = data->imageIOobj; |
| 571 | |
| 572 | if (cinfo->is_decompressor) { |
| 573 | struct jpeg_source_mgr *src = ((j_decompress_ptr)cinfo)->src; |
| 574 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 575 | (*env)->CallVoidMethod(env, theObject, |
| 576 | JPEGImageReader_warningWithMessageID, |
| 577 | string); |
| 578 | if ((*env)->ExceptionOccurred(env) |
| 579 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 580 | cinfo->err->error_exit(cinfo); |
| 581 | } |
| 582 | } else { |
| 583 | struct jpeg_destination_mgr *dest = ((j_compress_ptr)cinfo)->dest; |
| 584 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 585 | (*env)->CallVoidMethod(env, theObject, |
| 586 | JPEGImageWriter_warningWithMessageID, |
| 587 | string); |
| 588 | if ((*env)->ExceptionOccurred(env) |
| 589 | || !GET_ARRAYS(env, data, |
| 590 | (const JOCTET **)(&dest->next_output_byte))) { |
| 591 | cinfo->err->error_exit(cinfo); |
| 592 | } |
| 593 | } |
| 594 | } |
| 595 | |
| 596 | /* End of verbatim copy from jpegdecoder.c */ |
| 597 | |
| 598 | /*************** end of error handling *********************/ |
| 599 | |
| 600 | /*************** Shared utility code ***********************/ |
| 601 | |
| 602 | static void imageio_set_stream(JNIEnv *env, |
| 603 | j_common_ptr cinfo, |
| 604 | imageIODataPtr data, |
| 605 | jobject io){ |
| 606 | streamBufferPtr sb; |
| 607 | sun_jpeg_error_ptr jerr; |
| 608 | |
| 609 | sb = &data->streamBuf; |
| 610 | |
| 611 | resetStreamBuffer(env, sb); // Removes any old stream |
| 612 | |
| 613 | /* Now we need a new weak global reference for the I/O provider */ |
| 614 | if (io != NULL((void*)0)) { // Fix for 4411955 |
| 615 | sb->ioRef = (*env)->NewWeakGlobalRef(env, io); |
| 616 | CHECK_NULL(sb->ioRef)do { if ((sb->ioRef) == ((void*)0)) { return; } } while (0 ); |
| 617 | } |
| 618 | |
| 619 | /* And finally reset state */ |
| 620 | data->abortFlag = JNI_FALSE0; |
| 621 | |
| 622 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 623 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 624 | |
| 625 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 626 | /* If we get here, the JPEG code has signaled an error |
| 627 | while aborting. */ |
| 628 | if (!(*env)->ExceptionOccurred(env)) { |
| 629 | char buffer[JMSG_LENGTH_MAX200]; |
| 630 | (*cinfo->err->format_message) (cinfo, |
| 631 | buffer); |
| 632 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 633 | } |
| 634 | return; |
| 635 | } |
| 636 | |
| 637 | jpeg_abortjAbort(cinfo); // Frees any markers, but not tables |
| 638 | |
| 639 | } |
| 640 | |
| 641 | static void imageio_reset(JNIEnv *env, |
| 642 | j_common_ptr cinfo, |
| 643 | imageIODataPtr data) { |
| 644 | sun_jpeg_error_ptr jerr; |
| 645 | |
| 646 | resetImageIOData(env, data); // Mapping to jpeg object is retained. |
| 647 | |
| 648 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 649 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 650 | |
| 651 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 652 | /* If we get here, the JPEG code has signaled an error |
| 653 | while aborting. */ |
| 654 | if (!(*env)->ExceptionOccurred(env)) { |
| 655 | char buffer[JMSG_LENGTH_MAX200]; |
| 656 | (*cinfo->err->format_message) (cinfo, buffer); |
| 657 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 658 | } |
| 659 | return; |
| 660 | } |
| 661 | |
| 662 | jpeg_abortjAbort(cinfo); // Does not reset tables |
| 663 | |
| 664 | } |
| 665 | |
| 666 | static void imageio_dispose(j_common_ptr info) { |
| 667 | |
| 668 | if (info != NULL((void*)0)) { |
| 669 | free(info->err); |
| 670 | info->err = NULL((void*)0); |
| 671 | if (info->is_decompressor) { |
| 672 | j_decompress_ptr dinfo = (j_decompress_ptr) info; |
| 673 | free(dinfo->src); |
| 674 | dinfo->src = NULL((void*)0); |
| 675 | } else { |
| 676 | j_compress_ptr cinfo = (j_compress_ptr) info; |
| 677 | free(cinfo->dest); |
| 678 | cinfo->dest = NULL((void*)0); |
| 679 | } |
| 680 | jpeg_destroyjDestroy(info); |
| 681 | free(info); |
| 682 | } |
| 683 | } |
| 684 | |
| 685 | static void imageio_abort(JNIEnv *env, jobject this, |
| 686 | imageIODataPtr data) { |
| 687 | data->abortFlag = JNI_TRUE1; |
| 688 | } |
| 689 | |
| 690 | static int setQTables(JNIEnv *env, |
| 691 | j_common_ptr cinfo, |
| 692 | jobjectArray qtables, |
| 693 | boolean write) { |
| 694 | jsize qlen; |
| 695 | jobject table; |
| 696 | jintArray qdata; |
| 697 | jint *qdataBody; |
| 698 | JQUANT_TBL *quant_ptr; |
| 699 | int i, j; |
| 700 | j_compress_ptr comp; |
| 701 | j_decompress_ptr decomp; |
| 702 | |
| 703 | qlen = (*env)->GetArrayLength(env, qtables); |
| 704 | #ifdef DEBUG_IIO_JPEG |
| 705 | printf("in setQTables, qlen = %d, write is %d\n", qlen, write)__printf_chk (2 - 1, "in setQTables, qlen = %d, write is %d\n" , qlen, write); |
| 706 | #endif |
| 707 | if (qlen > NUM_QUANT_TBLS4) { |
| 708 | /* Ignore extra qunterization tables. */ |
| 709 | qlen = NUM_QUANT_TBLS4; |
| 710 | } |
| 711 | for (i = 0; i < qlen; i++) { |
| 712 | table = (*env)->GetObjectArrayElement(env, qtables, i); |
| 713 | CHECK_NULL_RETURN(table, 0)do { if ((table) == ((void*)0)) { return (0); } } while (0); |
| 714 | qdata = (*env)->GetObjectField(env, table, JPEGQTable_tableID); |
| 715 | qdataBody = (*env)->GetPrimitiveArrayCritical(env, qdata, NULL((void*)0)); |
| 716 | |
| 717 | if (cinfo->is_decompressor) { |
| 718 | decomp = (j_decompress_ptr) cinfo; |
| 719 | if (decomp->quant_tbl_ptrs[i] == NULL((void*)0)) { |
| 720 | decomp->quant_tbl_ptrs[i] = |
| 721 | jpeg_alloc_quant_tablejAlcQTable(cinfo); |
| 722 | } |
| 723 | quant_ptr = decomp->quant_tbl_ptrs[i]; |
| 724 | } else { |
| 725 | comp = (j_compress_ptr) cinfo; |
| 726 | if (comp->quant_tbl_ptrs[i] == NULL((void*)0)) { |
| 727 | comp->quant_tbl_ptrs[i] = |
| 728 | jpeg_alloc_quant_tablejAlcQTable(cinfo); |
| 729 | } |
| 730 | quant_ptr = comp->quant_tbl_ptrs[i]; |
| 731 | } |
| 732 | |
| 733 | for (j = 0; j < 64; j++) { |
| 734 | quant_ptr->quantval[j] = (UINT16)qdataBody[j]; |
| 735 | } |
| 736 | quant_ptr->sent_table = !write; |
| 737 | (*env)->ReleasePrimitiveArrayCritical(env, |
| 738 | qdata, |
| 739 | qdataBody, |
| 740 | 0); |
| 741 | } |
| 742 | return qlen; |
| 743 | } |
| 744 | |
| 745 | static boolean setHuffTable(JNIEnv *env, |
| 746 | JHUFF_TBL *huff_ptr, |
| 747 | jobject table) { |
| 748 | |
| 749 | jshortArray huffLens; |
| 750 | jshortArray huffValues; |
| 751 | jshort *hlensBody, *hvalsBody; |
| 752 | jsize hlensLen, hvalsLen; |
| 753 | int i; |
| 754 | |
| 755 | // lengths |
| 756 | huffLens = (*env)->GetObjectField(env, |
| 757 | table, |
| 758 | JPEGHuffmanTable_lengthsID); |
| 759 | hlensLen = (*env)->GetArrayLength(env, huffLens); |
| 760 | hlensBody = (*env)->GetShortArrayElements(env, |
| 761 | huffLens, |
| 762 | NULL((void*)0)); |
| 763 | CHECK_NULL_RETURN(hlensBody, FALSE)do { if ((hlensBody) == ((void*)0)) { return (0); } } while ( 0); |
| 764 | |
| 765 | if (hlensLen > 16) { |
| 766 | /* Ignore extra elements of bits array. Only 16 elements can be |
| 767 | stored. 0-th element is not used. (see jpeglib.h, line 107) */ |
| 768 | hlensLen = 16; |
| 769 | } |
| 770 | for (i = 1; i <= hlensLen; i++) { |
| 771 | huff_ptr->bits[i] = (UINT8)hlensBody[i-1]; |
| 772 | } |
| 773 | (*env)->ReleaseShortArrayElements(env, |
| 774 | huffLens, |
| 775 | hlensBody, |
| 776 | JNI_ABORT2); |
| 777 | // values |
| 778 | huffValues = (*env)->GetObjectField(env, |
| 779 | table, |
| 780 | JPEGHuffmanTable_valuesID); |
| 781 | hvalsLen = (*env)->GetArrayLength(env, huffValues); |
| 782 | hvalsBody = (*env)->GetShortArrayElements(env, |
| 783 | huffValues, |
| 784 | NULL((void*)0)); |
| 785 | CHECK_NULL_RETURN(hvalsBody, FALSE)do { if ((hvalsBody) == ((void*)0)) { return (0); } } while ( 0); |
| 786 | |
| 787 | if (hvalsLen > 256) { |
| 788 | /* Ignore extra elements of hufval array. Only 256 elements |
| 789 | can be stored. (see jpeglib.h, line 109) */ |
| 790 | hlensLen = 256; |
| 791 | } |
| 792 | for (i = 0; i < hvalsLen; i++) { |
| 793 | huff_ptr->huffval[i] = (UINT8)hvalsBody[i]; |
| 794 | } |
| 795 | (*env)->ReleaseShortArrayElements(env, |
| 796 | huffValues, |
| 797 | hvalsBody, |
| 798 | JNI_ABORT2); |
| 799 | return TRUE1; |
| 800 | } |
| 801 | |
| 802 | static int setHTables(JNIEnv *env, |
| 803 | j_common_ptr cinfo, |
| 804 | jobjectArray DCHuffmanTables, |
| 805 | jobjectArray ACHuffmanTables, |
| 806 | boolean write) { |
| 807 | int i; |
| 808 | jobject table; |
| 809 | JHUFF_TBL *huff_ptr; |
| 810 | j_compress_ptr comp; |
| 811 | j_decompress_ptr decomp; |
| 812 | jsize hlen = (*env)->GetArrayLength(env, DCHuffmanTables); |
| 813 | |
| 814 | if (hlen > NUM_HUFF_TBLS4) { |
| 815 | /* Ignore extra DC huffman tables. */ |
| 816 | hlen = NUM_HUFF_TBLS4; |
| 817 | } |
| 818 | for (i = 0; i < hlen; i++) { |
| 819 | if (cinfo->is_decompressor) { |
| 820 | decomp = (j_decompress_ptr) cinfo; |
| 821 | if (decomp->dc_huff_tbl_ptrs[i] == NULL((void*)0)) { |
| 822 | decomp->dc_huff_tbl_ptrs[i] = |
| 823 | jpeg_alloc_huff_tablejAlcHTable(cinfo); |
| 824 | } |
| 825 | huff_ptr = decomp->dc_huff_tbl_ptrs[i]; |
| 826 | } else { |
| 827 | comp = (j_compress_ptr) cinfo; |
| 828 | if (comp->dc_huff_tbl_ptrs[i] == NULL((void*)0)) { |
| 829 | comp->dc_huff_tbl_ptrs[i] = |
| 830 | jpeg_alloc_huff_tablejAlcHTable(cinfo); |
| 831 | } |
| 832 | huff_ptr = comp->dc_huff_tbl_ptrs[i]; |
| 833 | } |
| 834 | table = (*env)->GetObjectArrayElement(env, DCHuffmanTables, i); |
| 835 | if (table == NULL((void*)0) || !setHuffTable(env, huff_ptr, table)) { |
| 836 | return 0; |
| 837 | } |
| 838 | huff_ptr->sent_table = !write; |
| 839 | } |
| 840 | hlen = (*env)->GetArrayLength(env, ACHuffmanTables); |
| 841 | if (hlen > NUM_HUFF_TBLS4) { |
| 842 | /* Ignore extra AC huffman tables. */ |
| 843 | hlen = NUM_HUFF_TBLS4; |
| 844 | } |
| 845 | for (i = 0; i < hlen; i++) { |
| 846 | if (cinfo->is_decompressor) { |
| 847 | decomp = (j_decompress_ptr) cinfo; |
| 848 | if (decomp->ac_huff_tbl_ptrs[i] == NULL((void*)0)) { |
| 849 | decomp->ac_huff_tbl_ptrs[i] = |
| 850 | jpeg_alloc_huff_tablejAlcHTable(cinfo); |
| 851 | } |
| 852 | huff_ptr = decomp->ac_huff_tbl_ptrs[i]; |
| 853 | } else { |
| 854 | comp = (j_compress_ptr) cinfo; |
| 855 | if (comp->ac_huff_tbl_ptrs[i] == NULL((void*)0)) { |
| 856 | comp->ac_huff_tbl_ptrs[i] = |
| 857 | jpeg_alloc_huff_tablejAlcHTable(cinfo); |
| 858 | } |
| 859 | huff_ptr = comp->ac_huff_tbl_ptrs[i]; |
| 860 | } |
| 861 | table = (*env)->GetObjectArrayElement(env, ACHuffmanTables, i); |
| 862 | if(table == NULL((void*)0) || !setHuffTable(env, huff_ptr, table)) { |
| 863 | return 0; |
| 864 | } |
| 865 | huff_ptr->sent_table = !write; |
| 866 | } |
| 867 | return hlen; |
| 868 | } |
| 869 | |
| 870 | |
| 871 | /*************** end of shared utility code ****************/ |
| 872 | |
| 873 | /********************** Reader Support **************************/ |
| 874 | |
| 875 | /********************** Source Management ***********************/ |
| 876 | |
| 877 | /* |
| 878 | * INPUT HANDLING: |
| 879 | * |
| 880 | * The JPEG library's input management is defined by the jpeg_source_mgr |
| 881 | * structure which contains two fields to convey the information in the |
| 882 | * buffer and 5 methods which perform all buffer management. The library |
| 883 | * defines a standard input manager that uses stdio for obtaining compressed |
| 884 | * jpeg data, but here we need to use Java to get our data. |
| 885 | * |
| 886 | * We use the library jpeg_source_mgr but our own routines that access |
| 887 | * imageio-specific information in the imageIOData structure. |
| 888 | */ |
| 889 | |
| 890 | /* |
| 891 | * Initialize source. This is called by jpeg_read_header() before any |
| 892 | * data is actually read. Unlike init_destination(), it may leave |
| 893 | * bytes_in_buffer set to 0 (in which case a fill_input_buffer() call |
| 894 | * will occur immediately). |
| 895 | */ |
| 896 | |
| 897 | GLOBAL(void)void |
| 898 | imageio_init_source(j_decompress_ptr cinfo) |
| 899 | { |
| 900 | struct jpeg_source_mgr *src = cinfo->src; |
| 901 | src->next_input_byte = NULL((void*)0); |
| 902 | src->bytes_in_buffer = 0; |
| 903 | } |
| 904 | |
| 905 | /* |
| 906 | * This is called whenever bytes_in_buffer has reached zero and more |
| 907 | * data is wanted. In typical applications, it should read fresh data |
| 908 | * into the buffer (ignoring the current state of next_input_byte and |
| 909 | * bytes_in_buffer), reset the pointer & count to the start of the |
| 910 | * buffer, and return TRUE indicating that the buffer has been reloaded. |
| 911 | * It is not necessary to fill the buffer entirely, only to obtain at |
| 912 | * least one more byte. bytes_in_buffer MUST be set to a positive value |
| 913 | * if TRUE is returned. A FALSE return should only be used when I/O |
| 914 | * suspension is desired (this mode is discussed in the next section). |
| 915 | */ |
| 916 | /* |
| 917 | * Note that with I/O suspension turned on, this procedure should not |
| 918 | * do any work since the JPEG library has a very simple backtracking |
| 919 | * mechanism which relies on the fact that the buffer will be filled |
| 920 | * only when it has backed out to the top application level. When |
| 921 | * suspendable is turned on, imageio_fill_suspended_buffer will |
| 922 | * do the actual work of filling the buffer. |
| 923 | */ |
| 924 | |
| 925 | GLOBAL(boolean)boolean |
| 926 | imageio_fill_input_buffer(j_decompress_ptr cinfo) |
| 927 | { |
| 928 | struct jpeg_source_mgr *src = cinfo->src; |
| 929 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 930 | streamBufferPtr sb = &data->streamBuf; |
| 931 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 932 | int ret; |
| 933 | jobject input = NULL((void*)0); |
| 934 | |
| 935 | /* This is where input suspends */ |
| 936 | if (sb->suspendable) { |
| 937 | return FALSE0; |
| 938 | } |
| 939 | |
| 940 | #ifdef DEBUG_IIO_JPEG |
| 941 | printf("Filling input buffer, remaining skip is %ld, ",__printf_chk (2 - 1, "Filling input buffer, remaining skip is %ld, " , sb->remaining_skip) |
| 942 | sb->remaining_skip)__printf_chk (2 - 1, "Filling input buffer, remaining skip is %ld, " , sb->remaining_skip); |
| 943 | printf("Buffer length is %d\n", sb->bufferLength)__printf_chk (2 - 1, "Buffer length is %d\n", sb->bufferLength ); |
| 944 | #endif |
| 945 | |
| 946 | /* |
| 947 | * Definitively skips. Could be left over if we tried to skip |
| 948 | * more than a buffer's worth but suspended when getting the next |
| 949 | * buffer. Now we aren't suspended, so we can catch up. |
| 950 | */ |
| 951 | if (sb->remaining_skip) { |
| 952 | src->skip_input_data(cinfo, 0); |
| 953 | } |
| 954 | |
| 955 | /* |
| 956 | * Now fill a complete buffer, or as much of one as the stream |
| 957 | * will give us if we are near the end. |
| 958 | */ |
| 959 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 960 | |
| 961 | GET_IO_REF(input)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((input) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo ); } } while (0); |
| 962 | |
| 963 | ret = (*env)->CallIntMethod(env, |
| 964 | input, |
| 965 | JPEGImageReader_readInputDataID, |
| 966 | sb->hstreamBuffer, 0, |
| 967 | sb->bufferLength); |
| 968 | if ((ret > 0) && ((unsigned int)ret > sb->bufferLength)) { |
| 969 | ret = (int)sb->bufferLength; |
| 970 | } |
| 971 | if ((*env)->ExceptionOccurred(env) |
| 972 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 973 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 974 | } |
| 975 | |
| 976 | #ifdef DEBUG_IIO_JPEG |
| 977 | printf("Buffer filled. ret = %d\n", ret)__printf_chk (2 - 1, "Buffer filled. ret = %d\n", ret); |
| 978 | #endif |
| 979 | /* |
| 980 | * If we have reached the end of the stream, then the EOI marker |
| 981 | * is missing. We accept such streams but generate a warning. |
| 982 | * The image is likely to be corrupted, though everything through |
| 983 | * the end of the last complete MCU should be usable. |
| 984 | */ |
| 985 | if (ret <= 0) { |
| 986 | jobject reader = data->imageIOobj; |
| 987 | #ifdef DEBUG_IIO_JPEG |
| 988 | printf("YO! Early EOI! ret = %d\n", ret)__printf_chk (2 - 1, "YO! Early EOI! ret = %d\n", ret); |
| 989 | #endif |
| 990 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 991 | (*env)->CallVoidMethod(env, reader, |
| 992 | JPEGImageReader_warningOccurredID, |
| 993 | READ_NO_EOI0); |
| 994 | if ((*env)->ExceptionOccurred(env) |
| 995 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 996 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 997 | } |
| 998 | |
| 999 | sb->buf[0] = (JOCTET) 0xFF; |
| 1000 | sb->buf[1] = (JOCTET) JPEG_EOI0xD9; |
| 1001 | ret = 2; |
| 1002 | } |
| 1003 | |
| 1004 | src->next_input_byte = sb->buf; |
| 1005 | src->bytes_in_buffer = ret; |
| 1006 | |
| 1007 | return TRUE1; |
| 1008 | } |
| 1009 | |
| 1010 | /* |
| 1011 | * With I/O suspension turned on, the JPEG library requires that all |
| 1012 | * buffer filling be done at the top application level, using this |
| 1013 | * function. Due to the way that backtracking works, this procedure |
| 1014 | * saves all of the data that was left in the buffer when suspension |
| 1015 | * occurred and read new data only at the end. |
| 1016 | */ |
| 1017 | |
| 1018 | GLOBAL(void)void |
| 1019 | imageio_fill_suspended_buffer(j_decompress_ptr cinfo) |
| 1020 | { |
| 1021 | struct jpeg_source_mgr *src = cinfo->src; |
| 1022 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 1023 | streamBufferPtr sb = &data->streamBuf; |
| 1024 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 1025 | jint ret; |
| 1026 | size_t offset, buflen; |
| 1027 | jobject input = NULL((void*)0); |
| 1028 | |
| 1029 | /* |
| 1030 | * The original (jpegdecoder.c) had code here that called |
| 1031 | * InputStream.available and just returned if the number of bytes |
| 1032 | * available was less than any remaining skip. Presumably this was |
| 1033 | * to avoid blocking, although the benefit was unclear, as no more |
| 1034 | * decompression can take place until more data is available, so |
| 1035 | * the code would block on input a little further along anyway. |
| 1036 | * ImageInputStreams don't have an available method, so we'll just |
| 1037 | * block in the skip if we have to. |
| 1038 | */ |
| 1039 | |
| 1040 | if (sb->remaining_skip) { |
| 1041 | src->skip_input_data(cinfo, 0); |
| 1042 | } |
| 1043 | |
| 1044 | /* Save the data currently in the buffer */ |
| 1045 | offset = src->bytes_in_buffer; |
| 1046 | if (src->next_input_byte > sb->buf) { |
| 1047 | memcpy(sb->buf, src->next_input_byte, offset); |
| 1048 | } |
| 1049 | |
| 1050 | |
| 1051 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1052 | |
| 1053 | GET_IO_REF(input)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((input) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo ); } } while (0); |
| 1054 | |
| 1055 | buflen = sb->bufferLength - offset; |
| 1056 | if (buflen <= 0) { |
| 1057 | if (!GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1058 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1059 | } |
| 1060 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1061 | return; |
| 1062 | } |
| 1063 | |
| 1064 | ret = (*env)->CallIntMethod(env, input, |
| 1065 | JPEGImageReader_readInputDataID, |
| 1066 | sb->hstreamBuffer, |
| 1067 | offset, buflen); |
| 1068 | if ((ret > 0) && ((unsigned int)ret > buflen)) ret = (int)buflen; |
| 1069 | if ((*env)->ExceptionOccurred(env) |
| 1070 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1071 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1072 | } |
| 1073 | /* |
| 1074 | * If we have reached the end of the stream, then the EOI marker |
| 1075 | * is missing. We accept such streams but generate a warning. |
| 1076 | * The image is likely to be corrupted, though everything through |
| 1077 | * the end of the last complete MCU should be usable. |
| 1078 | */ |
| 1079 | if (ret <= 0) { |
| 1080 | jobject reader = data->imageIOobj; |
| 1081 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1082 | (*env)->CallVoidMethod(env, reader, |
| 1083 | JPEGImageReader_warningOccurredID, |
| 1084 | READ_NO_EOI0); |
| 1085 | if ((*env)->ExceptionOccurred(env) |
| 1086 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1087 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1088 | } |
| 1089 | |
| 1090 | sb->buf[offset] = (JOCTET) 0xFF; |
| 1091 | sb->buf[offset + 1] = (JOCTET) JPEG_EOI0xD9; |
| 1092 | ret = 2; |
| 1093 | } |
| 1094 | |
| 1095 | src->next_input_byte = sb->buf; |
| 1096 | src->bytes_in_buffer = ret + offset; |
| 1097 | |
| 1098 | return; |
| 1099 | } |
| 1100 | |
| 1101 | /* |
| 1102 | * Skip num_bytes worth of data. The buffer pointer and count are |
| 1103 | * advanced over num_bytes input bytes, using the input stream |
| 1104 | * skipBytes method if the skip is greater than the number of bytes |
| 1105 | * in the buffer. This is used to skip over a potentially large amount of |
| 1106 | * uninteresting data (such as an APPn marker). bytes_in_buffer will be |
| 1107 | * zero on return if the skip is larger than the current contents of the |
| 1108 | * buffer. |
| 1109 | * |
| 1110 | * A negative skip count is treated as a no-op. A zero skip count |
| 1111 | * skips any remaining skip from a previous skip while suspended. |
| 1112 | * |
| 1113 | * Note that with I/O suspension turned on, this procedure does not |
| 1114 | * call skipBytes since the JPEG library has a very simple backtracking |
| 1115 | * mechanism which relies on the fact that the application level has |
| 1116 | * exclusive control over actual I/O. |
| 1117 | */ |
| 1118 | |
| 1119 | GLOBAL(void)void |
| 1120 | imageio_skip_input_data(j_decompress_ptr cinfo, long num_bytes) |
| 1121 | { |
| 1122 | struct jpeg_source_mgr *src = cinfo->src; |
| 1123 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 1124 | streamBufferPtr sb = &data->streamBuf; |
| 1125 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 1126 | jlong ret; |
| 1127 | jobject reader; |
| 1128 | jobject input = NULL((void*)0); |
| 1129 | |
| 1130 | if (num_bytes < 0) { |
| 1131 | return; |
| 1132 | } |
| 1133 | num_bytes += sb->remaining_skip; |
| 1134 | sb->remaining_skip = 0; |
| 1135 | |
| 1136 | /* First the easy case where we are skipping <= the current contents. */ |
| 1137 | ret = src->bytes_in_buffer; |
| 1138 | if (ret >= num_bytes) { |
| 1139 | src->next_input_byte += num_bytes; |
| 1140 | src->bytes_in_buffer -= num_bytes; |
| 1141 | return; |
| 1142 | } |
| 1143 | |
| 1144 | /* |
| 1145 | * We are skipping more than is in the buffer. We empty the buffer and, |
| 1146 | * if we aren't suspended, call the Java skipBytes method. We always |
| 1147 | * leave the buffer empty, to be filled by either fill method above. |
| 1148 | */ |
| 1149 | src->bytes_in_buffer = 0; |
| 1150 | src->next_input_byte = sb->buf; |
| 1151 | |
| 1152 | num_bytes -= (long)ret; |
| 1153 | if (sb->suspendable) { |
| 1154 | sb->remaining_skip = num_bytes; |
| 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1159 | |
| 1160 | GET_IO_REF(input)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((input) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo ); } } while (0); |
| 1161 | |
| 1162 | ret = (*env)->CallLongMethod(env, |
| 1163 | input, |
| 1164 | JPEGImageReader_skipInputBytesID, |
| 1165 | (jlong) num_bytes); |
| 1166 | if ((*env)->ExceptionOccurred(env) |
| 1167 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1168 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1169 | } |
| 1170 | |
| 1171 | /* |
| 1172 | * If we have reached the end of the stream, then the EOI marker |
| 1173 | * is missing. We accept such streams but generate a warning. |
| 1174 | * The image is likely to be corrupted, though everything through |
| 1175 | * the end of the last complete MCU should be usable. |
| 1176 | */ |
| 1177 | if (ret <= 0) { |
| 1178 | reader = data->imageIOobj; |
| 1179 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1180 | (*env)->CallVoidMethod(env, |
| 1181 | reader, |
| 1182 | JPEGImageReader_warningOccurredID, |
| 1183 | READ_NO_EOI0); |
| 1184 | |
| 1185 | if ((*env)->ExceptionOccurred(env) |
| 1186 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1187 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1188 | } |
| 1189 | sb->buf[0] = (JOCTET) 0xFF; |
| 1190 | sb->buf[1] = (JOCTET) JPEG_EOI0xD9; |
| 1191 | src->bytes_in_buffer = 2; |
| 1192 | src->next_input_byte = sb->buf; |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | /* |
| 1197 | * Terminate source --- called by jpeg_finish_decompress() after all |
| 1198 | * data for an image has been read. In our case pushes back any |
| 1199 | * remaining data, as it will be for another image and must be available |
| 1200 | * for java to find out that there is another image. Also called if |
| 1201 | * reseting state after reading a tables-only image. |
| 1202 | */ |
| 1203 | |
| 1204 | GLOBAL(void)void |
| 1205 | imageio_term_source(j_decompress_ptr cinfo) |
| 1206 | { |
| 1207 | // To pushback, just seek back by src->bytes_in_buffer |
| 1208 | struct jpeg_source_mgr *src = cinfo->src; |
| 1209 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 1210 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 1211 | jobject reader = data->imageIOobj; |
| 1212 | if (src->bytes_in_buffer > 0) { |
| 1213 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1214 | (*env)->CallVoidMethod(env, |
| 1215 | reader, |
| 1216 | JPEGImageReader_pushBackID, |
| 1217 | src->bytes_in_buffer); |
| 1218 | |
| 1219 | if ((*env)->ExceptionOccurred(env) |
| 1220 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1221 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1222 | } |
| 1223 | src->bytes_in_buffer = 0; |
| 1224 | //src->next_input_byte = sb->buf; |
| 1225 | } |
| 1226 | } |
| 1227 | |
| 1228 | /********************* end of source manager ******************/ |
| 1229 | |
| 1230 | /********************* ICC profile support ********************/ |
| 1231 | /* |
| 1232 | * The following routines are modified versions of the ICC |
| 1233 | * profile support routines available from the IJG website. |
| 1234 | * The originals were written by Todd Newman |
| 1235 | * <tdn@eccentric.esd.sgi.com> and modified by Tom Lane for |
| 1236 | * the IJG. They are further modified to fit in the context |
| 1237 | * of the imageio JPEG plug-in. |
| 1238 | */ |
| 1239 | |
| 1240 | /* |
| 1241 | * Since an ICC profile can be larger than the maximum size of a JPEG marker |
| 1242 | * (64K), we need provisions to split it into multiple markers. The format |
| 1243 | * defined by the ICC specifies one or more APP2 markers containing the |
| 1244 | * following data: |
| 1245 | * Identifying string ASCII "ICC_PROFILE\0" (12 bytes) |
| 1246 | * Marker sequence number 1 for first APP2, 2 for next, etc (1 byte) |
| 1247 | * Number of markers Total number of APP2's used (1 byte) |
| 1248 | * Profile data (remainder of APP2 data) |
| 1249 | * Decoders should use the marker sequence numbers to reassemble the profile, |
| 1250 | * rather than assuming that the APP2 markers appear in the correct sequence. |
| 1251 | */ |
| 1252 | |
| 1253 | #define ICC_MARKER(0xE0 + 2) (JPEG_APP00xE0 + 2) /* JPEG marker code for ICC */ |
| 1254 | #define ICC_OVERHEAD_LEN14 14 /* size of non-profile data in APP2 */ |
| 1255 | #define MAX_BYTES_IN_MARKER65533 65533 /* maximum data len of a JPEG marker */ |
| 1256 | #define MAX_DATA_BYTES_IN_ICC_MARKER(65533 - 14) (MAX_BYTES_IN_MARKER65533 - ICC_OVERHEAD_LEN14) |
| 1257 | |
| 1258 | |
| 1259 | /* |
| 1260 | * Handy subroutine to test whether a saved marker is an ICC profile marker. |
| 1261 | */ |
| 1262 | |
| 1263 | static boolean |
| 1264 | marker_is_icc (jpeg_saved_marker_ptr marker) |
| 1265 | { |
| 1266 | return |
| 1267 | marker->marker == ICC_MARKER(0xE0 + 2) && |
| 1268 | marker->data_length >= ICC_OVERHEAD_LEN14 && |
| 1269 | /* verify the identifying string */ |
| 1270 | GETJOCTET(marker->data[0])(marker->data[0]) == 0x49 && |
| 1271 | GETJOCTET(marker->data[1])(marker->data[1]) == 0x43 && |
| 1272 | GETJOCTET(marker->data[2])(marker->data[2]) == 0x43 && |
| 1273 | GETJOCTET(marker->data[3])(marker->data[3]) == 0x5F && |
| 1274 | GETJOCTET(marker->data[4])(marker->data[4]) == 0x50 && |
| 1275 | GETJOCTET(marker->data[5])(marker->data[5]) == 0x52 && |
| 1276 | GETJOCTET(marker->data[6])(marker->data[6]) == 0x4F && |
| 1277 | GETJOCTET(marker->data[7])(marker->data[7]) == 0x46 && |
| 1278 | GETJOCTET(marker->data[8])(marker->data[8]) == 0x49 && |
| 1279 | GETJOCTET(marker->data[9])(marker->data[9]) == 0x4C && |
| 1280 | GETJOCTET(marker->data[10])(marker->data[10]) == 0x45 && |
| 1281 | GETJOCTET(marker->data[11])(marker->data[11]) == 0x0; |
| 1282 | } |
| 1283 | |
| 1284 | /* |
| 1285 | * See if there was an ICC profile in the JPEG file being read; |
| 1286 | * if so, reassemble and return the profile data as a new Java byte array. |
| 1287 | * If there was no ICC profile, return NULL. |
| 1288 | * |
| 1289 | * If the file contains invalid ICC APP2 markers, we throw an IIOException |
| 1290 | * with an appropriate message. |
| 1291 | */ |
| 1292 | |
| 1293 | jbyteArray |
| 1294 | read_icc_profile (JNIEnv *env, j_decompress_ptr cinfo) |
| 1295 | { |
| 1296 | jpeg_saved_marker_ptr marker; |
| 1297 | int num_markers = 0; |
| 1298 | int num_found_markers = 0; |
| 1299 | int seq_no; |
| 1300 | JOCTET *icc_data; |
| 1301 | JOCTET *dst_ptr; |
| 1302 | unsigned int total_length; |
| 1303 | #define MAX_SEQ_NO255 255 // sufficient since marker numbers are bytes |
| 1304 | jpeg_saved_marker_ptr icc_markers[MAX_SEQ_NO255 + 1]; |
| 1305 | int first; // index of the first marker in the icc_markers array |
| 1306 | int last; // index of the last marker in the icc_markers array |
| 1307 | jbyteArray data = NULL((void*)0); |
| 1308 | |
| 1309 | /* This first pass over the saved markers discovers whether there are |
| 1310 | * any ICC markers and verifies the consistency of the marker numbering. |
| 1311 | */ |
| 1312 | |
| 1313 | for (seq_no = 0; seq_no <= MAX_SEQ_NO255; seq_no++) |
| 1314 | icc_markers[seq_no] = NULL((void*)0); |
| 1315 | |
| 1316 | |
| 1317 | for (marker = cinfo->marker_list; marker != NULL((void*)0); marker = marker->next) { |
| 1318 | if (marker_is_icc(marker)) { |
| 1319 | if (num_markers == 0) |
| 1320 | num_markers = GETJOCTET(marker->data[13])(marker->data[13]); |
| 1321 | else if (num_markers != GETJOCTET(marker->data[13])(marker->data[13])) { |
| 1322 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1323 | "Invalid icc profile: inconsistent num_markers fields"); |
| 1324 | return NULL((void*)0); |
| 1325 | } |
| 1326 | seq_no = GETJOCTET(marker->data[12])(marker->data[12]); |
| 1327 | |
| 1328 | /* Some third-party tools produce images with profile chunk |
| 1329 | * numeration started from zero. It is inconsistent with ICC |
| 1330 | * spec, but seems to be recognized by majority of image |
| 1331 | * processing tools, so we should be more tolerant to this |
| 1332 | * departure from the spec. |
| 1333 | */ |
| 1334 | if (seq_no < 0 || seq_no > num_markers) { |
| 1335 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1336 | "Invalid icc profile: bad sequence number"); |
| 1337 | return NULL((void*)0); |
| 1338 | } |
| 1339 | if (icc_markers[seq_no] != NULL((void*)0)) { |
| 1340 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1341 | "Invalid icc profile: duplicate sequence numbers"); |
| 1342 | return NULL((void*)0); |
| 1343 | } |
| 1344 | icc_markers[seq_no] = marker; |
| 1345 | num_found_markers ++; |
| 1346 | } |
| 1347 | } |
| 1348 | |
| 1349 | if (num_markers == 0) |
| 1350 | return NULL((void*)0); // There is no profile |
| 1351 | |
| 1352 | if (num_markers != num_found_markers) { |
| 1353 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1354 | "Invalid icc profile: invalid number of icc markers"); |
| 1355 | return NULL((void*)0); |
| 1356 | } |
| 1357 | |
| 1358 | first = icc_markers[0] ? 0 : 1; |
| 1359 | last = num_found_markers + first; |
| 1360 | |
| 1361 | /* Check for missing markers, count total space needed. |
| 1362 | */ |
| 1363 | total_length = 0; |
| 1364 | for (seq_no = first; seq_no < last; seq_no++) { |
| 1365 | unsigned int length; |
| 1366 | if (icc_markers[seq_no] == NULL((void*)0)) { |
| 1367 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1368 | "Invalid icc profile: missing sequence number"); |
| 1369 | return NULL((void*)0); |
| 1370 | } |
| 1371 | /* check the data length correctness */ |
| 1372 | length = icc_markers[seq_no]->data_length; |
| 1373 | if (ICC_OVERHEAD_LEN14 > length || length > MAX_BYTES_IN_MARKER65533) { |
| 1374 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1375 | "Invalid icc profile: invalid data length"); |
| 1376 | return NULL((void*)0); |
| 1377 | } |
| 1378 | total_length += (length - ICC_OVERHEAD_LEN14); |
| 1379 | } |
| 1380 | |
| 1381 | if (total_length <= 0) { |
| 1382 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1383 | "Invalid icc profile: found only empty markers"); |
| 1384 | return NULL((void*)0); |
| 1385 | } |
| 1386 | |
| 1387 | /* Allocate a Java byte array for assembled data */ |
| 1388 | |
| 1389 | data = (*env)->NewByteArray(env, total_length); |
| 1390 | if (data == NULL((void*)0)) { |
| 1391 | JNU_ThrowByName(env, |
| 1392 | "java/lang/OutOfMemoryError", |
| 1393 | "Reading ICC profile"); |
| 1394 | return NULL((void*)0); |
| 1395 | } |
| 1396 | |
| 1397 | icc_data = (JOCTET *)(*env)->GetPrimitiveArrayCritical(env, |
| 1398 | data, |
| 1399 | NULL((void*)0)); |
| 1400 | if (icc_data == NULL((void*)0)) { |
| 1401 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1402 | "Unable to pin icc profile data array"); |
| 1403 | return NULL((void*)0); |
| 1404 | } |
| 1405 | |
| 1406 | /* and fill it in */ |
| 1407 | dst_ptr = icc_data; |
| 1408 | for (seq_no = first; seq_no < last; seq_no++) { |
| 1409 | JOCTET FAR *src_ptr = icc_markers[seq_no]->data + ICC_OVERHEAD_LEN14; |
| 1410 | unsigned int length = |
| 1411 | icc_markers[seq_no]->data_length - ICC_OVERHEAD_LEN14; |
| 1412 | |
| 1413 | memcpy(dst_ptr, src_ptr, length); |
| 1414 | dst_ptr += length; |
| 1415 | } |
| 1416 | |
| 1417 | /* finally, unpin the array */ |
| 1418 | (*env)->ReleasePrimitiveArrayCritical(env, |
| 1419 | data, |
| 1420 | icc_data, |
| 1421 | 0); |
| 1422 | |
| 1423 | |
| 1424 | return data; |
| 1425 | } |
| 1426 | |
| 1427 | /********************* end of ICC profile support *************/ |
| 1428 | |
| 1429 | /********************* Reader JNI calls ***********************/ |
| 1430 | |
| 1431 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 1432 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_initReaderIDs |
| 1433 | (JNIEnv *env, |
| 1434 | jclass cls, |
| 1435 | jclass ImageInputStreamClass, |
| 1436 | jclass qTableClass, |
| 1437 | jclass huffClass) { |
| 1438 | |
| 1439 | CHECK_NULL(JPEGImageReader_readInputDataID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_readInputDataID = (*env)->GetMethodID (env, cls, "readInputData", "([BII)I")) == ((void*)0)) { return ; } } while (0) |
| 1440 | cls,do { if ((JPEGImageReader_readInputDataID = (*env)->GetMethodID (env, cls, "readInputData", "([BII)I")) == ((void*)0)) { return ; } } while (0) |
| 1441 | "readInputData",do { if ((JPEGImageReader_readInputDataID = (*env)->GetMethodID (env, cls, "readInputData", "([BII)I")) == ((void*)0)) { return ; } } while (0) |
| 1442 | "([BII)I"))do { if ((JPEGImageReader_readInputDataID = (*env)->GetMethodID (env, cls, "readInputData", "([BII)I")) == ((void*)0)) { return ; } } while (0); |
| 1443 | CHECK_NULL(JPEGImageReader_skipInputBytesID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_skipInputBytesID = (*env)->GetMethodID (env, cls, "skipInputBytes", "(J)J")) == ((void*)0)) { return ; } } while (0) |
| 1444 | cls,do { if ((JPEGImageReader_skipInputBytesID = (*env)->GetMethodID (env, cls, "skipInputBytes", "(J)J")) == ((void*)0)) { return ; } } while (0) |
| 1445 | "skipInputBytes",do { if ((JPEGImageReader_skipInputBytesID = (*env)->GetMethodID (env, cls, "skipInputBytes", "(J)J")) == ((void*)0)) { return ; } } while (0) |
| 1446 | "(J)J"))do { if ((JPEGImageReader_skipInputBytesID = (*env)->GetMethodID (env, cls, "skipInputBytes", "(J)J")) == ((void*)0)) { return ; } } while (0); |
| 1447 | CHECK_NULL(JPEGImageReader_warningOccurredID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 1448 | cls,do { if ((JPEGImageReader_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 1449 | "warningOccurred",do { if ((JPEGImageReader_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 1450 | "(I)V"))do { if ((JPEGImageReader_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0); |
| 1451 | CHECK_NULL(JPEGImageReader_warningWithMessageID =do { if ((JPEGImageReader_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 1452 | (*env)->GetMethodID(env,do { if ((JPEGImageReader_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 1453 | cls,do { if ((JPEGImageReader_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 1454 | "warningWithMessage",do { if ((JPEGImageReader_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 1455 | "(Ljava/lang/String;)V"))do { if ((JPEGImageReader_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0); |
| 1456 | CHECK_NULL(JPEGImageReader_setImageDataID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_setImageDataID = (*env)->GetMethodID (env, cls, "setImageData", "(IIIII[B)V")) == ((void*)0)) { return ; } } while (0) |
| 1457 | cls,do { if ((JPEGImageReader_setImageDataID = (*env)->GetMethodID (env, cls, "setImageData", "(IIIII[B)V")) == ((void*)0)) { return ; } } while (0) |
| 1458 | "setImageData",do { if ((JPEGImageReader_setImageDataID = (*env)->GetMethodID (env, cls, "setImageData", "(IIIII[B)V")) == ((void*)0)) { return ; } } while (0) |
| 1459 | "(IIIII[B)V"))do { if ((JPEGImageReader_setImageDataID = (*env)->GetMethodID (env, cls, "setImageData", "(IIIII[B)V")) == ((void*)0)) { return ; } } while (0); |
| 1460 | CHECK_NULL(JPEGImageReader_acceptPixelsID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_acceptPixelsID = (*env)->GetMethodID (env, cls, "acceptPixels", "(IZ)V")) == ((void*)0)) { return; } } while (0) |
| 1461 | cls,do { if ((JPEGImageReader_acceptPixelsID = (*env)->GetMethodID (env, cls, "acceptPixels", "(IZ)V")) == ((void*)0)) { return; } } while (0) |
| 1462 | "acceptPixels",do { if ((JPEGImageReader_acceptPixelsID = (*env)->GetMethodID (env, cls, "acceptPixels", "(IZ)V")) == ((void*)0)) { return; } } while (0) |
| 1463 | "(IZ)V"))do { if ((JPEGImageReader_acceptPixelsID = (*env)->GetMethodID (env, cls, "acceptPixels", "(IZ)V")) == ((void*)0)) { return; } } while (0); |
| 1464 | CHECK_NULL(JPEGImageReader_passStartedID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_passStartedID = (*env)->GetMethodID (env, cls, "passStarted", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1465 | cls,do { if ((JPEGImageReader_passStartedID = (*env)->GetMethodID (env, cls, "passStarted", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1466 | "passStarted",do { if ((JPEGImageReader_passStartedID = (*env)->GetMethodID (env, cls, "passStarted", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1467 | "(I)V"))do { if ((JPEGImageReader_passStartedID = (*env)->GetMethodID (env, cls, "passStarted", "(I)V")) == ((void*)0)) { return; } } while (0); |
| 1468 | CHECK_NULL(JPEGImageReader_passCompleteID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_passCompleteID = (*env)->GetMethodID (env, cls, "passComplete", "()V")) == ((void*)0)) { return; } } while (0) |
| 1469 | cls,do { if ((JPEGImageReader_passCompleteID = (*env)->GetMethodID (env, cls, "passComplete", "()V")) == ((void*)0)) { return; } } while (0) |
| 1470 | "passComplete",do { if ((JPEGImageReader_passCompleteID = (*env)->GetMethodID (env, cls, "passComplete", "()V")) == ((void*)0)) { return; } } while (0) |
| 1471 | "()V"))do { if ((JPEGImageReader_passCompleteID = (*env)->GetMethodID (env, cls, "passComplete", "()V")) == ((void*)0)) { return; } } while (0); |
| 1472 | CHECK_NULL(JPEGImageReader_pushBackID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_pushBackID = (*env)->GetMethodID (env, cls, "pushBack", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1473 | cls,do { if ((JPEGImageReader_pushBackID = (*env)->GetMethodID (env, cls, "pushBack", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1474 | "pushBack",do { if ((JPEGImageReader_pushBackID = (*env)->GetMethodID (env, cls, "pushBack", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1475 | "(I)V"))do { if ((JPEGImageReader_pushBackID = (*env)->GetMethodID (env, cls, "pushBack", "(I)V")) == ((void*)0)) { return; } } while (0); |
| 1476 | CHECK_NULL(JPEGImageReader_skipPastImageID = (*env)->GetMethodID(env,do { if ((JPEGImageReader_skipPastImageID = (*env)->GetMethodID (env, cls, "skipPastImage", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1477 | cls,do { if ((JPEGImageReader_skipPastImageID = (*env)->GetMethodID (env, cls, "skipPastImage", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1478 | "skipPastImage",do { if ((JPEGImageReader_skipPastImageID = (*env)->GetMethodID (env, cls, "skipPastImage", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 1479 | "(I)V"))do { if ((JPEGImageReader_skipPastImageID = (*env)->GetMethodID (env, cls, "skipPastImage", "(I)V")) == ((void*)0)) { return; } } while (0); |
| 1480 | CHECK_NULL(JPEGQTable_tableID = (*env)->GetFieldID(env,do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 1481 | qTableClass,do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 1482 | "qTable",do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 1483 | "[I"))do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0); |
| 1484 | |
| 1485 | CHECK_NULL(JPEGHuffmanTable_lengthsID = (*env)->GetFieldID(env,do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 1486 | huffClass,do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 1487 | "lengths",do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 1488 | "[S"))do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0); |
| 1489 | |
| 1490 | CHECK_NULL(JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env,do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 1491 | huffClass,do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 1492 | "values",do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 1493 | "[S"))do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0); |
| 1494 | } |
| 1495 | |
| 1496 | JNIEXPORT__attribute__((visibility("default"))) jlong JNICALL |
| 1497 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_initJPEGImageReader |
| 1498 | (JNIEnv *env, |
| 1499 | jobject this) { |
| 1500 | |
| 1501 | imageIODataPtr ret; |
| 1502 | struct sun_jpeg_error_mgr *jerr; |
| 1503 | |
| 1504 | /* This struct contains the JPEG decompression parameters and pointers to |
| 1505 | * working space (which is allocated as needed by the JPEG library). |
| 1506 | */ |
| 1507 | struct jpeg_decompress_struct *cinfo = |
| 1508 | malloc(sizeof(struct jpeg_decompress_struct)); |
| 1509 | if (cinfo == NULL((void*)0)) { |
| 1510 | JNU_ThrowByName( env, |
| 1511 | "java/lang/OutOfMemoryError", |
| 1512 | "Initializing Reader"); |
| 1513 | return 0; |
| 1514 | } |
| 1515 | |
| 1516 | /* We use our private extension JPEG error handler. |
| 1517 | */ |
| 1518 | jerr = malloc (sizeof(struct sun_jpeg_error_mgr)); |
| 1519 | if (jerr == NULL((void*)0)) { |
| 1520 | JNU_ThrowByName( env, |
| 1521 | "java/lang/OutOfMemoryError", |
| 1522 | "Initializing Reader"); |
| 1523 | free(cinfo); |
| 1524 | return 0; |
| 1525 | } |
| 1526 | |
| 1527 | /* We set up the normal JPEG error routines, then override error_exit. */ |
| 1528 | cinfo->err = jpeg_std_errorjStdError(&(jerr->pub)); |
| 1529 | jerr->pub.error_exit = sun_jpeg_error_exit; |
| 1530 | /* We need to setup our own print routines */ |
| 1531 | jerr->pub.output_message = sun_jpeg_output_message; |
| 1532 | /* Now we can setjmp before every call to the library */ |
| 1533 | |
| 1534 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 1535 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 1536 | /* If we get here, the JPEG code has signaled an error. */ |
| 1537 | char buffer[JMSG_LENGTH_MAX200]; |
| 1538 | (*cinfo->err->format_message) ((struct jpeg_common_struct *) cinfo, |
| 1539 | buffer); |
| 1540 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 1541 | return 0; |
| 1542 | } |
| 1543 | |
| 1544 | /* Perform library initialization */ |
| 1545 | jpeg_create_decompress(cinfo)jCreaDecompress((cinfo), 62, (size_t) sizeof(struct jpeg_decompress_struct )); |
| 1546 | |
| 1547 | // Set up to keep any APP2 markers, as these might contain ICC profile |
| 1548 | // data |
| 1549 | jpeg_save_markersjSaveMarkers(cinfo, ICC_MARKER(0xE0 + 2), 0xFFFF); |
| 1550 | |
| 1551 | /* |
| 1552 | * Now set up our source. |
| 1553 | */ |
| 1554 | cinfo->src = |
| 1555 | (struct jpeg_source_mgr *) malloc (sizeof(struct jpeg_source_mgr)); |
| 1556 | if (cinfo->src == NULL((void*)0)) { |
| 1557 | JNU_ThrowByName(env, |
| 1558 | "java/lang/OutOfMemoryError", |
| 1559 | "Initializing Reader"); |
| 1560 | imageio_dispose((j_common_ptr)cinfo); |
| 1561 | return 0; |
| 1562 | } |
| 1563 | cinfo->src->bytes_in_buffer = 0; |
| 1564 | cinfo->src->next_input_byte = NULL((void*)0); |
| 1565 | cinfo->src->init_source = imageio_init_source; |
| 1566 | cinfo->src->fill_input_buffer = imageio_fill_input_buffer; |
| 1567 | cinfo->src->skip_input_data = imageio_skip_input_data; |
| 1568 | cinfo->src->resync_to_restart = jpeg_resync_to_restartjResyncRestart; // use default |
| 1569 | cinfo->src->term_source = imageio_term_source; |
| 1570 | |
| 1571 | /* set up the association to persist for future calls */ |
| 1572 | ret = initImageioData(env, (j_common_ptr) cinfo, this); |
| 1573 | if (ret == NULL((void*)0)) { |
| 1574 | (*env)->ExceptionClear(env); |
| 1575 | JNU_ThrowByName(env, "java/lang/OutOfMemoryError", |
| 1576 | "Initializing Reader"); |
| 1577 | imageio_dispose((j_common_ptr)cinfo); |
| 1578 | return 0; |
| 1579 | } |
| 1580 | return ptr_to_jlong(ret)((jlong)(ret)); |
| 1581 | } |
| 1582 | |
| 1583 | /* |
| 1584 | * When we set a source from Java, we set up the stream in the streamBuf |
| 1585 | * object. If there was an old one, it is released first. |
| 1586 | */ |
| 1587 | |
| 1588 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 1589 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_setSource |
| 1590 | (JNIEnv *env, |
| 1591 | jobject this, |
| 1592 | jlong ptr) { |
| 1593 | |
| 1594 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 1595 | j_common_ptr cinfo; |
| 1596 | |
| 1597 | if (data == NULL((void*)0)) { |
| 1598 | JNU_ThrowByName(env, |
| 1599 | "java/lang/IllegalStateException", |
| 1600 | "Attempting to use reader after dispose()"); |
| 1601 | return; |
| 1602 | } |
| 1603 | |
| 1604 | cinfo = data->jpegObj; |
| 1605 | |
| 1606 | imageio_set_stream(env, cinfo, data, this); |
| 1607 | |
| 1608 | imageio_init_source((j_decompress_ptr) cinfo); |
| 1609 | } |
| 1610 | |
| 1611 | #define JPEG_APP1(0xE0 + 1) (JPEG_APP00xE0 + 1) /* EXIF APP1 marker code */ |
| 1612 | |
| 1613 | /* |
| 1614 | * For EXIF images, the APP1 will appear immediately after the SOI, |
| 1615 | * so it's safe to only look at the first marker in the list. |
| 1616 | * (see http://www.exif.org/Exif2-2.PDF, section 4.7, page 58) |
| 1617 | */ |
| 1618 | #define IS_EXIF(c)(((c)->marker_list != ((void*)0)) && ((c)->marker_list ->marker == (0xE0 + 1))) \ |
| 1619 | (((c)->marker_list != NULL((void*)0)) && ((c)->marker_list->marker == JPEG_APP1(0xE0 + 1))) |
| 1620 | |
| 1621 | JNIEXPORT__attribute__((visibility("default"))) jboolean JNICALL |
| 1622 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_readImageHeader |
| 1623 | (JNIEnv *env, |
| 1624 | jobject this, |
| 1625 | jlong ptr, |
| 1626 | jboolean clearFirst, |
| 1627 | jboolean reset) { |
| 1628 | |
| 1629 | int ret; |
| 1630 | int h_samp0, h_samp1, h_samp2; |
| 1631 | int v_samp0, v_samp1, v_samp2; |
| 1632 | int cid0, cid1, cid2; |
| 1633 | jboolean retval = JNI_FALSE0; |
| 1634 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 1635 | j_decompress_ptr cinfo; |
| 1636 | struct jpeg_source_mgr *src; |
| 1637 | sun_jpeg_error_ptr jerr; |
| 1638 | jbyteArray profileData = NULL((void*)0); |
| 1639 | |
| 1640 | if (data == NULL((void*)0)) { |
| 1641 | JNU_ThrowByName(env, |
| 1642 | "java/lang/IllegalStateException", |
| 1643 | "Attempting to use reader after dispose()"); |
| 1644 | return JNI_FALSE0; |
| 1645 | } |
| 1646 | |
| 1647 | cinfo = (j_decompress_ptr) data->jpegObj; |
| 1648 | src = cinfo->src; |
| 1649 | |
| 1650 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 1651 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 1652 | |
| 1653 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 1654 | /* If we get here, the JPEG code has signaled an error |
| 1655 | while reading the header. */ |
| 1656 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1657 | if (!(*env)->ExceptionOccurred(env)) { |
| 1658 | char buffer[JMSG_LENGTH_MAX200]; |
| 1659 | (*cinfo->err->format_message) ((struct jpeg_common_struct *) cinfo, |
| 1660 | buffer); |
| 1661 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 1662 | } |
| 1663 | return retval; |
| 1664 | } |
| 1665 | |
| 1666 | #ifdef DEBUG_IIO_JPEG |
| 1667 | printf("In readImageHeader, data is %p cinfo is %p\n", data, cinfo)__printf_chk (2 - 1, "In readImageHeader, data is %p cinfo is %p\n" , data, cinfo); |
| 1668 | printf("clearFirst is %d\n", clearFirst)__printf_chk (2 - 1, "clearFirst is %d\n", clearFirst); |
| 1669 | #endif |
| 1670 | |
| 1671 | if (GET_ARRAYS(env, data, &src->next_input_byte) == NOT_OK0) { |
| 1672 | (*env)->ExceptionClear(env); |
| 1673 | JNU_ThrowByName(env, |
| 1674 | "javax/imageio/IIOException", |
| 1675 | "Array pin failed"); |
| 1676 | return retval; |
| 1677 | } |
| 1678 | |
| 1679 | /* |
| 1680 | * Now clear the input buffer if the Java code has done a seek |
| 1681 | * on the stream since the last call, invalidating any buffer contents. |
| 1682 | */ |
| 1683 | if (clearFirst) { |
| 1684 | clearStreamBuffer(&data->streamBuf); |
| 1685 | src->next_input_byte = NULL((void*)0); |
| 1686 | src->bytes_in_buffer = 0; |
| 1687 | } |
| 1688 | |
| 1689 | ret = jpeg_read_headerjReadHeader(cinfo, FALSE0); |
| 1690 | |
| 1691 | if (ret == JPEG_HEADER_TABLES_ONLY2) { |
| 1692 | retval = JNI_TRUE1; |
| 1693 | imageio_term_source(cinfo); // Pushback remaining buffer contents |
| 1694 | #ifdef DEBUG_IIO_JPEG |
| 1695 | printf("just read tables-only image; q table 0 at %p\n",__printf_chk (2 - 1, "just read tables-only image; q table 0 at %p\n" , cinfo->quant_tbl_ptrs[0]) |
| 1696 | cinfo->quant_tbl_ptrs[0])__printf_chk (2 - 1, "just read tables-only image; q table 0 at %p\n" , cinfo->quant_tbl_ptrs[0]); |
| 1697 | #endif |
| 1698 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1699 | } else { |
| 1700 | /* |
| 1701 | * Now adjust the jpeg_color_space variable, which was set in |
| 1702 | * default_decompress_parms, to reflect our differences from IJG |
| 1703 | */ |
| 1704 | |
| 1705 | switch (cinfo->jpeg_color_space) { |
| 1706 | default : |
| 1707 | break; |
| 1708 | case JCS_YCbCr: |
| 1709 | |
| 1710 | /* |
| 1711 | * There are several possibilities: |
| 1712 | * - we got image with embeded colorspace |
| 1713 | * Use it. User knows what he is doing. |
| 1714 | * - we got JFIF image |
| 1715 | * Must be YCbCr (see http://www.w3.org/Graphics/JPEG/jfif3.pdf, page 2) |
| 1716 | * - we got EXIF image |
| 1717 | * Must be YCbCr (see http://www.exif.org/Exif2-2.PDF, section 4.7, page 63) |
| 1718 | * - something else |
| 1719 | * Apply heuristical rules to identify actual colorspace. |
| 1720 | */ |
| 1721 | |
| 1722 | if (cinfo->saw_Adobe_marker) { |
| 1723 | if (cinfo->Adobe_transform != 1) { |
| 1724 | /* |
| 1725 | * IJG guesses this is YCbCr and emits a warning |
| 1726 | * We would rather not guess. Then the user knows |
| 1727 | * To read this as a Raster if at all |
| 1728 | */ |
| 1729 | cinfo->jpeg_color_space = JCS_UNKNOWN; |
| 1730 | cinfo->out_color_space = JCS_UNKNOWN; |
| 1731 | } |
| 1732 | } else if (!cinfo->saw_JFIF_marker && !IS_EXIF(cinfo)(((cinfo)->marker_list != ((void*)0)) && ((cinfo)-> marker_list->marker == (0xE0 + 1)))) { |
| 1733 | /* |
| 1734 | * In the absence of certain markers, IJG has interpreted |
| 1735 | * component id's of [1,2,3] as meaning YCbCr.We follow that |
| 1736 | * interpretation, which is additionally described in the Image |
| 1737 | * I/O JPEG metadata spec.If that condition is not met here the |
| 1738 | * next step will be to examine the subsampling factors, if |
| 1739 | * there is any difference in subsampling factors we also assume |
| 1740 | * YCbCr, only if both horizontal and vertical subsampling |
| 1741 | * is same we assume JPEG color space as RGB. |
| 1742 | * This is also described in the Image I/O JPEG metadata spec. |
| 1743 | */ |
| 1744 | h_samp0 = cinfo->comp_info[0].h_samp_factor; |
| 1745 | h_samp1 = cinfo->comp_info[1].h_samp_factor; |
| 1746 | h_samp2 = cinfo->comp_info[2].h_samp_factor; |
| 1747 | |
| 1748 | v_samp0 = cinfo->comp_info[0].v_samp_factor; |
| 1749 | v_samp1 = cinfo->comp_info[1].v_samp_factor; |
| 1750 | v_samp2 = cinfo->comp_info[2].v_samp_factor; |
| 1751 | |
| 1752 | cid0 = cinfo->comp_info[0].component_id; |
| 1753 | cid1 = cinfo->comp_info[1].component_id; |
| 1754 | cid2 = cinfo->comp_info[2].component_id; |
| 1755 | |
| 1756 | if ((!(cid0 == 1 && cid1 == 2 && cid2 == 3)) && |
| 1757 | ((h_samp1 == h_samp0) && (h_samp2 == h_samp0) && |
| 1758 | (v_samp1 == v_samp0) && (v_samp2 == v_samp0))) |
| 1759 | { |
| 1760 | cinfo->jpeg_color_space = JCS_RGB; |
| 1761 | /* output is already RGB, so it stays the same */ |
| 1762 | } |
| 1763 | } |
| 1764 | break; |
| 1765 | case JCS_YCCK: |
| 1766 | if ((cinfo->saw_Adobe_marker) && (cinfo->Adobe_transform != 2)) { |
| 1767 | /* |
| 1768 | * IJG guesses this is YCCK and emits a warning |
| 1769 | * We would rather not guess. Then the user knows |
| 1770 | * To read this as a Raster if at all |
| 1771 | */ |
| 1772 | cinfo->jpeg_color_space = JCS_UNKNOWN; |
| 1773 | cinfo->out_color_space = JCS_UNKNOWN; |
| 1774 | } |
| 1775 | break; |
| 1776 | case JCS_CMYK: |
| 1777 | /* |
| 1778 | * IJG assumes all unidentified 4-channels are CMYK. |
| 1779 | * We assume that only if the second two channels are |
| 1780 | * not subsampled (either horizontally or vertically). |
| 1781 | * If they are, we assume YCCK. |
| 1782 | */ |
| 1783 | h_samp0 = cinfo->comp_info[0].h_samp_factor; |
| 1784 | h_samp1 = cinfo->comp_info[1].h_samp_factor; |
| 1785 | h_samp2 = cinfo->comp_info[2].h_samp_factor; |
| 1786 | |
| 1787 | v_samp0 = cinfo->comp_info[0].v_samp_factor; |
| 1788 | v_samp1 = cinfo->comp_info[1].v_samp_factor; |
| 1789 | v_samp2 = cinfo->comp_info[2].v_samp_factor; |
| 1790 | |
| 1791 | if (((h_samp1 > h_samp0) && (h_samp2 > h_samp0)) || |
| 1792 | ((v_samp1 > v_samp0) && (v_samp2 > v_samp0))) |
| 1793 | { |
| 1794 | cinfo->jpeg_color_space = JCS_YCCK; |
| 1795 | /* Leave the output space as CMYK */ |
| 1796 | } |
| 1797 | } |
| 1798 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1799 | |
| 1800 | /* read icc profile data */ |
| 1801 | profileData = read_icc_profile(env, cinfo); |
| 1802 | |
| 1803 | if ((*env)->ExceptionCheck(env)) { |
| 1804 | return retval; |
| 1805 | } |
| 1806 | |
| 1807 | (*env)->CallVoidMethod(env, this, |
| 1808 | JPEGImageReader_setImageDataID, |
| 1809 | cinfo->image_width, |
| 1810 | cinfo->image_height, |
| 1811 | cinfo->jpeg_color_space, |
| 1812 | cinfo->out_color_space, |
| 1813 | cinfo->num_components, |
| 1814 | profileData); |
| 1815 | if ((*env)->ExceptionOccurred(env) |
| 1816 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 1817 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 1818 | } |
| 1819 | if (reset) { |
| 1820 | jpeg_abort_decompressjAbrtDecompress(cinfo); |
| 1821 | } |
| 1822 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1823 | } |
| 1824 | |
| 1825 | return retval; |
| 1826 | } |
| 1827 | |
| 1828 | |
| 1829 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 1830 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_setOutColorSpace |
| 1831 | (JNIEnv *env, |
| 1832 | jobject this, |
| 1833 | jlong ptr, |
| 1834 | jint code) { |
| 1835 | |
| 1836 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 1837 | j_decompress_ptr cinfo; |
| 1838 | |
| 1839 | if (data == NULL((void*)0)) { |
| 1840 | JNU_ThrowByName(env, |
| 1841 | "java/lang/IllegalStateException", |
| 1842 | "Attempting to use reader after dispose()"); |
| 1843 | return; |
| 1844 | } |
| 1845 | |
| 1846 | cinfo = (j_decompress_ptr) data->jpegObj; |
| 1847 | |
| 1848 | cinfo->out_color_space = code; |
| 1849 | |
| 1850 | } |
| 1851 | |
| 1852 | JNIEXPORT__attribute__((visibility("default"))) jboolean JNICALL |
| 1853 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_readImage |
| 1854 | (JNIEnv *env, |
| 1855 | jobject this, |
| 1856 | jint imageIndex, |
| 1857 | jlong ptr, |
| 1858 | jbyteArray buffer, |
| 1859 | jint numBands, |
| 1860 | jintArray srcBands, |
| 1861 | jintArray bandSizes, |
| 1862 | jint sourceXStart, |
| 1863 | jint sourceYStart, |
| 1864 | jint sourceWidth, |
| 1865 | jint sourceHeight, |
| 1866 | jint stepX, |
| 1867 | jint stepY, |
| 1868 | jobjectArray qtables, |
| 1869 | jobjectArray DCHuffmanTables, |
| 1870 | jobjectArray ACHuffmanTables, |
| 1871 | jint minProgressivePass, // Counts from 0 |
| 1872 | jint maxProgressivePass, |
| 1873 | jboolean wantUpdates) { |
| 1874 | |
| 1875 | |
| 1876 | struct jpeg_source_mgr *src; |
| 1877 | JSAMPROW scanLinePtr = NULL((void*)0); |
| 1878 | jint bands[MAX_BANDS4]; |
| 1879 | int i; |
| 1880 | jint *body; |
| 1881 | int scanlineLimit; |
| 1882 | int pixelStride; |
| 1883 | unsigned char *in, *out, *pixelLimit; |
| 1884 | int targetLine; |
| 1885 | int skipLines, linesLeft; |
| 1886 | pixelBufferPtr pb; |
| 1887 | sun_jpeg_error_ptr jerr; |
| 1888 | boolean done; |
| 1889 | boolean progressive = FALSE0; |
| 1890 | boolean orderedBands = TRUE1; |
| 1891 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 1892 | j_decompress_ptr cinfo; |
| 1893 | size_t numBytes; |
| 1894 | |
| 1895 | /* verify the inputs */ |
| 1896 | |
| 1897 | if (data == NULL((void*)0)) { |
| 1898 | JNU_ThrowByName(env, |
| 1899 | "java/lang/IllegalStateException", |
| 1900 | "Attempting to use reader after dispose()"); |
| 1901 | return JNI_FALSE0; |
| 1902 | } |
| 1903 | |
| 1904 | if ((buffer == NULL((void*)0)) || (srcBands == NULL((void*)0))) { |
| 1905 | JNU_ThrowNullPointerException(env, 0); |
| 1906 | return JNI_FALSE0; |
| 1907 | } |
| 1908 | |
| 1909 | cinfo = (j_decompress_ptr) data->jpegObj; |
| 1910 | |
| 1911 | if ((numBands < 1) || (numBands > MAX_BANDS4) || |
| 1912 | (sourceXStart < 0) || (sourceXStart >= (jint)cinfo->image_width) || |
| 1913 | (sourceYStart < 0) || (sourceYStart >= (jint)cinfo->image_height) || |
| 1914 | (sourceWidth < 1) || (sourceWidth > (jint)cinfo->image_width) || |
| 1915 | (sourceHeight < 1) || (sourceHeight > (jint)cinfo->image_height) || |
| 1916 | (stepX < 1) || (stepY < 1) || |
| 1917 | (minProgressivePass < 0) || |
| 1918 | (maxProgressivePass < minProgressivePass)) |
| 1919 | { |
| 1920 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 1921 | "Invalid argument to native readImage"); |
| 1922 | return JNI_FALSE0; |
| 1923 | } |
| 1924 | |
| 1925 | if (stepX > (jint)cinfo->image_width) { |
| 1926 | stepX = cinfo->image_width; |
| 1927 | } |
| 1928 | if (stepY > (jint)cinfo->image_height) { |
| 1929 | stepY = cinfo->image_height; |
| 1930 | } |
| 1931 | |
| 1932 | /* |
| 1933 | * First get the source bands array and copy it to our local array |
| 1934 | * so we don't have to worry about pinning and unpinning it again. |
| 1935 | */ |
| 1936 | |
| 1937 | body = (*env)->GetIntArrayElements(env, srcBands, NULL((void*)0)); |
| 1938 | if (body == NULL((void*)0)) { |
| 1939 | (*env)->ExceptionClear(env); |
| 1940 | JNU_ThrowByName( env, |
| 1941 | "java/lang/OutOfMemoryError", |
| 1942 | "Initializing Read"); |
| 1943 | return JNI_FALSE0; |
| 1944 | } |
| 1945 | |
| 1946 | for (i = 0; i < numBands; i++) { |
| 1947 | bands[i] = body[i]; |
| 1948 | if (orderedBands && (bands[i] != i)) { |
| 1949 | orderedBands = FALSE0; |
| 1950 | } |
| 1951 | } |
| 1952 | |
| 1953 | (*env)->ReleaseIntArrayElements(env, srcBands, body, JNI_ABORT2); |
| 1954 | |
| 1955 | #ifdef DEBUG_IIO_JPEG |
| 1956 | printf("---- in reader.read ----\n")__printf_chk (2 - 1, "---- in reader.read ----\n"); |
| 1957 | printf("numBands is %d\n", numBands)__printf_chk (2 - 1, "numBands is %d\n", numBands); |
| 1958 | printf("bands array: ")__printf_chk (2 - 1, "bands array: "); |
| 1959 | for (i = 0; i < numBands; i++) { |
| 1960 | printf("%d ", bands[i])__printf_chk (2 - 1, "%d ", bands[i]); |
| 1961 | } |
| 1962 | printf("\n")__printf_chk (2 - 1, "\n"); |
| 1963 | printf("jq table 0 at %p\n",__printf_chk (2 - 1, "jq table 0 at %p\n", cinfo->quant_tbl_ptrs [0]) |
| 1964 | cinfo->quant_tbl_ptrs[0])__printf_chk (2 - 1, "jq table 0 at %p\n", cinfo->quant_tbl_ptrs [0]); |
| 1965 | #endif |
| 1966 | |
| 1967 | data = (imageIODataPtr) cinfo->client_data; |
| 1968 | src = cinfo->src; |
| 1969 | |
| 1970 | /* Set the buffer as our PixelBuffer */ |
| 1971 | pb = &data->pixelBuf; |
| 1972 | |
| 1973 | if (setPixelBuffer(env, pb, buffer) == NOT_OK0) { |
| 1974 | return data->abortFlag; // We already threw an out of memory exception |
| 1975 | } |
| 1976 | |
| 1977 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 1978 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 1979 | |
| 1980 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 1981 | /* If we get here, the JPEG code has signaled an error |
| 1982 | while reading. */ |
| 1983 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 1984 | if (!(*env)->ExceptionOccurred(env)) { |
| 1985 | char buffer[JMSG_LENGTH_MAX200]; |
| 1986 | (*cinfo->err->format_message) ((struct jpeg_common_struct *) cinfo, |
| 1987 | buffer); |
| 1988 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 1989 | } |
| 1990 | if (scanLinePtr != NULL((void*)0)) { |
| 1991 | free(scanLinePtr); |
| 1992 | scanLinePtr = NULL((void*)0); |
| 1993 | } |
| 1994 | return data->abortFlag; |
| 1995 | } |
| 1996 | |
| 1997 | if (GET_ARRAYS(env, data, &src->next_input_byte) == NOT_OK0) { |
| 1998 | (*env)->ExceptionClear(env); |
| 1999 | JNU_ThrowByName(env, |
| 2000 | "javax/imageio/IIOException", |
| 2001 | "Array pin failed"); |
| 2002 | return data->abortFlag; |
| 2003 | } |
| 2004 | |
| 2005 | // If there are no tables in our structure and table arguments aren't |
| 2006 | // NULL, use the table arguments. |
| 2007 | if ((qtables != NULL((void*)0)) && (cinfo->quant_tbl_ptrs[0] == NULL((void*)0))) { |
| 2008 | (void) setQTables(env, (j_common_ptr) cinfo, qtables, TRUE1); |
| 2009 | } |
| 2010 | |
| 2011 | if ((DCHuffmanTables != NULL((void*)0)) && (cinfo->dc_huff_tbl_ptrs[0] == NULL((void*)0))) { |
| 2012 | setHTables(env, (j_common_ptr) cinfo, |
| 2013 | DCHuffmanTables, |
| 2014 | ACHuffmanTables, |
| 2015 | TRUE1); |
| 2016 | } |
| 2017 | |
| 2018 | progressive = jpeg_has_multiple_scansjHasMultScn(cinfo); |
| 2019 | if (progressive) { |
| 2020 | cinfo->buffered_image = TRUE1; |
| 2021 | cinfo->input_scan_number = minProgressivePass+1; // Java count from 0 |
| 2022 | #define MAX_JAVA_INT2147483647 2147483647 // XXX Is this defined in JNI somewhere? |
| 2023 | if (maxProgressivePass < MAX_JAVA_INT2147483647) { |
| 2024 | maxProgressivePass++; // For testing |
| 2025 | } |
| 2026 | } |
| 2027 | |
| 2028 | data->streamBuf.suspendable = FALSE0; |
| 2029 | |
| 2030 | jpeg_start_decompressjStrtDecompress(cinfo); |
| 2031 | |
| 2032 | if (numBands != cinfo->output_components) { |
| 2033 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2034 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 2035 | "Invalid argument to native readImage"); |
| 2036 | return data->abortFlag; |
| 2037 | } |
| 2038 | |
| 2039 | if (cinfo->output_components <= 0 || |
| 2040 | cinfo->image_width > (0xffffffffu / (unsigned int)cinfo->output_components)) |
| 2041 | { |
| 2042 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2043 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 2044 | "Invalid number of output components"); |
| 2045 | return data->abortFlag; |
| 2046 | } |
| 2047 | |
| 2048 | // Allocate a 1-scanline buffer |
| 2049 | scanLinePtr = (JSAMPROW)malloc(cinfo->image_width*cinfo->output_components); |
| 2050 | if (scanLinePtr == NULL((void*)0)) { |
| 2051 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2052 | JNU_ThrowByName( env, |
| 2053 | "java/lang/OutOfMemoryError", |
| 2054 | "Reading JPEG Stream"); |
| 2055 | return data->abortFlag; |
| 2056 | } |
| 2057 | |
| 2058 | // loop over progressive passes |
| 2059 | done = FALSE0; |
| 2060 | while (!done) { |
| 2061 | if (progressive) { |
| 2062 | // initialize the next pass. Note that this skips up to |
| 2063 | // the first interesting pass. |
| 2064 | jpeg_start_outputjStrtOutput(cinfo, cinfo->input_scan_number); |
| 2065 | if (wantUpdates) { |
| 2066 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2067 | (*env)->CallVoidMethod(env, this, |
| 2068 | JPEGImageReader_passStartedID, |
| 2069 | cinfo->input_scan_number-1); |
| 2070 | if ((*env)->ExceptionOccurred(env) |
| 2071 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 2072 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2073 | } |
| 2074 | } |
| 2075 | } else if (wantUpdates) { |
| 2076 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2077 | (*env)->CallVoidMethod(env, this, |
| 2078 | JPEGImageReader_passStartedID, |
| 2079 | 0); |
| 2080 | if ((*env)->ExceptionOccurred(env) |
| 2081 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 2082 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2083 | } |
| 2084 | } |
| 2085 | |
| 2086 | // Skip until the first interesting line |
| 2087 | while ((data->abortFlag == JNI_FALSE0) |
| 2088 | && ((jint)cinfo->output_scanline < sourceYStart)) { |
| 2089 | jpeg_read_scanlinesjReadScanlines(cinfo, &scanLinePtr, 1); |
| 2090 | } |
| 2091 | |
| 2092 | scanlineLimit = sourceYStart+sourceHeight; |
| 2093 | pixelLimit = scanLinePtr |
| 2094 | +(sourceXStart+sourceWidth)*cinfo->output_components; |
| 2095 | |
| 2096 | pixelStride = stepX*cinfo->output_components; |
| 2097 | targetLine = 0; |
| 2098 | |
| 2099 | while ((data->abortFlag == JNI_FALSE0) |
| 2100 | && ((jint)cinfo->output_scanline < scanlineLimit)) { |
| 2101 | |
| 2102 | jpeg_read_scanlinesjReadScanlines(cinfo, &scanLinePtr, 1); |
| 2103 | |
| 2104 | // Now mangle it into our buffer |
| 2105 | out = data->pixelBuf.buf.bp; |
| 2106 | |
| 2107 | if (orderedBands && (pixelStride == numBands)) { |
| 2108 | // Optimization: The component bands are ordered sequentially, |
| 2109 | // so we can simply use memcpy() to copy the intermediate |
| 2110 | // scanline buffer into the raster. |
| 2111 | in = scanLinePtr + (sourceXStart * cinfo->output_components); |
| 2112 | if (pixelLimit > in) { |
| 2113 | numBytes = pixelLimit - in; |
| 2114 | if (numBytes > data->pixelBuf.byteBufferLength) { |
| 2115 | numBytes = data->pixelBuf.byteBufferLength; |
| 2116 | } |
| 2117 | memcpy(out, in, numBytes); |
| 2118 | } |
| 2119 | } else { |
| 2120 | numBytes = numBands; |
| 2121 | for (in = scanLinePtr+sourceXStart*cinfo->output_components; |
| 2122 | in < pixelLimit && |
| 2123 | numBytes <= data->pixelBuf.byteBufferLength; |
| 2124 | in += pixelStride) { |
| 2125 | for (i = 0; i < numBands; i++) { |
| 2126 | *out++ = *(in+bands[i]); |
| 2127 | } |
| 2128 | numBytes += numBands; |
| 2129 | } |
| 2130 | } |
| 2131 | |
| 2132 | // And call it back to Java |
| 2133 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2134 | (*env)->CallVoidMethod(env, |
| 2135 | this, |
| 2136 | JPEGImageReader_acceptPixelsID, |
| 2137 | targetLine++, |
| 2138 | progressive); |
| 2139 | |
| 2140 | if ((*env)->ExceptionOccurred(env) |
| 2141 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 2142 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2143 | } |
| 2144 | |
| 2145 | // And skip over uninteresting lines to the next subsampled line |
| 2146 | // Ensure we don't go past the end of the image |
| 2147 | |
| 2148 | // Lines to skip based on subsampling |
| 2149 | skipLines = stepY - 1; |
| 2150 | // Lines left in the image |
| 2151 | linesLeft = scanlineLimit - cinfo->output_scanline; |
| 2152 | // Take the minimum |
| 2153 | if (skipLines > linesLeft) { |
| 2154 | skipLines = linesLeft; |
| 2155 | } |
| 2156 | for(i = 0; i < skipLines; i++) { |
| 2157 | jpeg_read_scanlinesjReadScanlines(cinfo, &scanLinePtr, 1); |
| 2158 | } |
| 2159 | } |
| 2160 | if (progressive) { |
| 2161 | jpeg_finish_outputjFinOutput(cinfo); // Increments pass counter |
| 2162 | // Call Java to notify pass complete |
| 2163 | if (jpeg_input_completejInComplete(cinfo) |
| 2164 | || (cinfo->input_scan_number > maxProgressivePass)) { |
| 2165 | done = TRUE1; |
| 2166 | } |
| 2167 | } else { |
| 2168 | done = TRUE1; |
| 2169 | } |
| 2170 | if (wantUpdates) { |
| 2171 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2172 | (*env)->CallVoidMethod(env, this, |
| 2173 | JPEGImageReader_passCompleteID); |
| 2174 | if ((*env)->ExceptionOccurred(env) |
| 2175 | || !GET_ARRAYS(env, data, &(src->next_input_byte))) { |
| 2176 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2177 | } |
| 2178 | } |
| 2179 | |
| 2180 | } |
| 2181 | /* |
| 2182 | * We are done, but we might not have read all the lines, or all |
| 2183 | * the passes, so use jpeg_abort instead of jpeg_finish_decompress. |
| 2184 | */ |
| 2185 | if ((cinfo->output_scanline != cinfo->output_height) || |
| 2186 | data->abortFlag == JNI_TRUE1) |
| 2187 | { |
| 2188 | jpeg_abort_decompressjAbrtDecompress(cinfo); |
| 2189 | } else if ((!jpeg_input_completejInComplete(cinfo)) && |
| 2190 | (progressive && |
| 2191 | (cinfo->input_scan_number > maxProgressivePass))) { |
| 2192 | /* We haven't reached EOI, but we need to skip to there */ |
| 2193 | (*cinfo->src->term_source) (cinfo); |
| 2194 | /* We can use jpeg_abort to release memory and reset global_state */ |
| 2195 | jpeg_abortjAbort((j_common_ptr) cinfo); |
| 2196 | (*env)->CallVoidMethod(env, |
| 2197 | this, |
| 2198 | JPEGImageReader_skipPastImageID, |
| 2199 | imageIndex); |
| 2200 | } else { |
| 2201 | jpeg_finish_decompressjFinDecompress(cinfo); |
| 2202 | } |
| 2203 | |
| 2204 | free(scanLinePtr); |
| 2205 | |
| 2206 | RELEASE_ARRAYS(env, data, src->next_input_byte); |
| 2207 | |
| 2208 | return data->abortFlag; |
| 2209 | } |
| 2210 | |
| 2211 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2212 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_clearNativeReadAbortFlag |
| 2213 | (JNIEnv *env, |
| 2214 | jobject this, |
| 2215 | jlong ptr) { |
| 2216 | |
| 2217 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2218 | |
| 2219 | if (data == NULL((void*)0)) { |
| 2220 | JNU_ThrowByName(env, |
| 2221 | "java/lang/IllegalStateException", |
| 2222 | "Attempting to use reader after dispose()"); |
| 2223 | return; |
| 2224 | } |
| 2225 | |
| 2226 | data->abortFlag = JNI_FALSE0; |
| 2227 | |
| 2228 | } |
| 2229 | |
| 2230 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2231 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_abortRead |
| 2232 | (JNIEnv *env, |
| 2233 | jobject this, |
| 2234 | jlong ptr) { |
| 2235 | |
| 2236 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2237 | |
| 2238 | if (data == NULL((void*)0)) { |
| 2239 | JNU_ThrowByName(env, |
| 2240 | "java/lang/IllegalStateException", |
| 2241 | "Attempting to use reader after dispose()"); |
| 2242 | return; |
| 2243 | } |
| 2244 | |
| 2245 | imageio_abort(env, this, data); |
| 2246 | |
| 2247 | } |
| 2248 | |
| 2249 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2250 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_resetLibraryState |
| 2251 | (JNIEnv *env, |
| 2252 | jobject this, |
| 2253 | jlong ptr) { |
| 2254 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2255 | j_decompress_ptr cinfo; |
| 2256 | |
| 2257 | if (data == NULL((void*)0)) { |
| 2258 | JNU_ThrowByName(env, |
| 2259 | "java/lang/IllegalStateException", |
| 2260 | "Attempting to use reader after dispose()"); |
| 2261 | return; |
| 2262 | } |
| 2263 | |
| 2264 | cinfo = (j_decompress_ptr) data->jpegObj; |
| 2265 | |
| 2266 | jpeg_abort_decompressjAbrtDecompress(cinfo); |
| 2267 | } |
| 2268 | |
| 2269 | |
| 2270 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2271 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_resetReader |
| 2272 | (JNIEnv *env, |
| 2273 | jobject this, |
| 2274 | jlong ptr) { |
| 2275 | |
| 2276 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2277 | j_decompress_ptr cinfo; |
| 2278 | sun_jpeg_error_ptr jerr; |
| 2279 | |
| 2280 | if (data == NULL((void*)0)) { |
| 2281 | JNU_ThrowByName(env, |
| 2282 | "java/lang/IllegalStateException", |
| 2283 | "Attempting to use reader after dispose()"); |
| 2284 | return; |
| 2285 | } |
| 2286 | |
| 2287 | cinfo = (j_decompress_ptr) data->jpegObj; |
| 2288 | |
| 2289 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 2290 | |
| 2291 | imageio_reset(env, (j_common_ptr) cinfo, data); |
| 2292 | |
| 2293 | /* |
| 2294 | * The tables have not been reset, and there is no way to do so |
| 2295 | * in IJG without leaking memory. The only situation in which |
| 2296 | * this will cause a problem is if an image-only stream is read |
| 2297 | * with this object without initializing the correct tables first. |
| 2298 | * This situation, which should cause an error, might work but |
| 2299 | * produce garbage instead. If the huffman tables are wrong, |
| 2300 | * it will fail during the decode. If the q tables are wrong, it |
| 2301 | * will look strange. This is very unlikely, so don't worry about |
| 2302 | * it. To be really robust, we would keep a flag for table state |
| 2303 | * and consult it to catch exceptional situations. |
| 2304 | */ |
| 2305 | |
| 2306 | /* above does not clean up the source, so we have to */ |
| 2307 | |
| 2308 | /* |
| 2309 | We need to explicitly initialize exception handler or we may |
| 2310 | longjump to random address from the term_source() |
| 2311 | */ |
| 2312 | |
| 2313 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 2314 | |
| 2315 | /* |
| 2316 | We may get IOException from pushBack() here. |
| 2317 | |
| 2318 | However it could be legal if original input stream was closed |
| 2319 | earlier (for example because network connection was closed). |
| 2320 | Unfortunately, image inputstream API has no way to check whether |
| 2321 | stream is already closed or IOException was thrown because of some |
| 2322 | other IO problem, |
| 2323 | And we can not avoid call to pushBack() on closed stream for the |
| 2324 | same reason. |
| 2325 | |
| 2326 | So, for now we will silently eat this exception. |
| 2327 | |
| 2328 | NB: this may be changed in future when ImageInputStream API will |
| 2329 | become more flexible. |
| 2330 | */ |
| 2331 | |
| 2332 | if ((*env)->ExceptionOccurred(env)) { |
| 2333 | (*env)->ExceptionClear(env); |
| 2334 | } |
| 2335 | } else { |
| 2336 | cinfo->src->term_source(cinfo); |
| 2337 | } |
| 2338 | |
| 2339 | cinfo->src->bytes_in_buffer = 0; |
| 2340 | cinfo->src->next_input_byte = NULL((void*)0); |
| 2341 | } |
| 2342 | |
| 2343 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2344 | Java_com_sun_imageio_plugins_jpeg_JPEGImageReader_disposeReader |
| 2345 | (JNIEnv *env, |
| 2346 | jclass reader, |
| 2347 | jlong ptr) { |
| 2348 | |
| 2349 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2350 | j_common_ptr info = destroyImageioData(env, data); |
| 2351 | |
| 2352 | imageio_dispose(info); |
| 2353 | } |
| 2354 | |
| 2355 | /********************** end of Reader *************************/ |
| 2356 | |
| 2357 | /********************** Writer Support ************************/ |
| 2358 | |
| 2359 | /********************** Destination Manager *******************/ |
| 2360 | |
| 2361 | METHODDEF(void)static void |
| 2362 | /* |
| 2363 | * Initialize destination --- called by jpeg_start_compress |
| 2364 | * before any data is actually written. The data arrays |
| 2365 | * must be pinned before this is called. |
| 2366 | */ |
| 2367 | imageio_init_destination (j_compress_ptr cinfo) |
| 2368 | { |
| 2369 | struct jpeg_destination_mgr *dest = cinfo->dest; |
| 2370 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 2371 | streamBufferPtr sb = &data->streamBuf; |
| 2372 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 2373 | |
| 2374 | if (sb->buf == NULL((void*)0)) { |
| 2375 | // We forgot to pin the array |
| 2376 | (*env)->FatalError(env, "Output buffer not pinned!"); |
| 2377 | } |
| 2378 | |
| 2379 | dest->next_output_byte = sb->buf; |
| 2380 | dest->free_in_buffer = sb->bufferLength; |
| 2381 | } |
| 2382 | |
| 2383 | /* |
| 2384 | * Empty the output buffer --- called whenever buffer fills up. |
| 2385 | * |
| 2386 | * This routine writes the entire output buffer |
| 2387 | * (ignoring the current state of next_output_byte & free_in_buffer), |
| 2388 | * resets the pointer & count to the start of the buffer, and returns TRUE |
| 2389 | * indicating that the buffer has been dumped. |
| 2390 | */ |
| 2391 | |
| 2392 | METHODDEF(boolean)static boolean |
| 2393 | imageio_empty_output_buffer (j_compress_ptr cinfo) |
| 2394 | { |
| 2395 | struct jpeg_destination_mgr *dest = cinfo->dest; |
| 2396 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 2397 | streamBufferPtr sb = &data->streamBuf; |
| 2398 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 2399 | jobject output = NULL((void*)0); |
| 2400 | |
| 2401 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 2402 | |
| 2403 | GET_IO_REF(output)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((output) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo ); } } while (0); |
| 2404 | |
| 2405 | (*env)->CallVoidMethod(env, |
| 2406 | output, |
| 2407 | JPEGImageWriter_writeOutputDataID, |
| 2408 | sb->hstreamBuffer, |
| 2409 | 0, |
| 2410 | sb->bufferLength); |
| 2411 | if ((*env)->ExceptionOccurred(env) |
| 2412 | || !GET_ARRAYS(env, data, |
| 2413 | (const JOCTET **)(&dest->next_output_byte))) { |
| 2414 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2415 | } |
| 2416 | |
| 2417 | dest->next_output_byte = sb->buf; |
| 2418 | dest->free_in_buffer = sb->bufferLength; |
| 2419 | |
| 2420 | return TRUE1; |
| 2421 | } |
| 2422 | |
| 2423 | /* |
| 2424 | * After all of the data has been encoded there may still be some |
| 2425 | * more left over in some of the working buffers. Now is the |
| 2426 | * time to clear them out. |
| 2427 | */ |
| 2428 | METHODDEF(void)static void |
| 2429 | imageio_term_destination (j_compress_ptr cinfo) |
| 2430 | { |
| 2431 | struct jpeg_destination_mgr *dest = cinfo->dest; |
| 2432 | imageIODataPtr data = (imageIODataPtr) cinfo->client_data; |
| 2433 | streamBufferPtr sb = &data->streamBuf; |
| 2434 | JNIEnv *env = (JNIEnv *)JNU_GetEnv(the_jvm, JNI_VERSION_1_20x00010002); |
| 2435 | |
| 2436 | /* find out how much needs to be written */ |
| 2437 | /* this conversion from size_t to jint is safe, because the lenght of the buffer is limited by jint */ |
| 2438 | jint datacount = (jint)(sb->bufferLength - dest->free_in_buffer); |
| 2439 | |
| 2440 | if (datacount != 0) { |
| 2441 | jobject output = NULL((void*)0); |
| 2442 | |
| 2443 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 2444 | |
| 2445 | GET_IO_REF(output)do { if ((*env)->IsSameObject(env, sb->ioRef, ((void*)0 )) || ((output) = (*env)->NewLocalRef(env, sb->ioRef)) == ((void*)0)) { cinfo->err->error_exit((j_common_ptr) cinfo ); } } while (0); |
| 2446 | |
| 2447 | (*env)->CallVoidMethod(env, |
| 2448 | output, |
| 2449 | JPEGImageWriter_writeOutputDataID, |
| 2450 | sb->hstreamBuffer, |
| 2451 | 0, |
| 2452 | datacount); |
| 2453 | |
| 2454 | if ((*env)->ExceptionOccurred(env) |
| 2455 | || !GET_ARRAYS(env, data, |
| 2456 | (const JOCTET **)(&dest->next_output_byte))) { |
| 2457 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 2458 | } |
| 2459 | } |
| 2460 | |
| 2461 | dest->next_output_byte = NULL((void*)0); |
| 2462 | dest->free_in_buffer = 0; |
| 2463 | |
| 2464 | } |
| 2465 | |
| 2466 | /* |
| 2467 | * Flush the destination buffer. This is not called by the library, |
| 2468 | * but by our code below. This is the simplest implementation, though |
| 2469 | * certainly not the most efficient. |
| 2470 | */ |
| 2471 | METHODDEF(void)static void |
| 2472 | imageio_flush_destination(j_compress_ptr cinfo) |
| 2473 | { |
| 2474 | imageio_term_destination(cinfo); |
| 2475 | imageio_init_destination(cinfo); |
| 2476 | } |
| 2477 | |
| 2478 | /********************** end of destination manager ************/ |
| 2479 | |
| 2480 | /********************** Writer JNI calls **********************/ |
| 2481 | |
| 2482 | |
| 2483 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2484 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_initWriterIDs |
| 2485 | (JNIEnv *env, |
| 2486 | jclass cls, |
| 2487 | jclass qTableClass, |
| 2488 | jclass huffClass) { |
| 2489 | |
| 2490 | CHECK_NULL(JPEGImageWriter_writeOutputDataID = (*env)->GetMethodID(env,do { if ((JPEGImageWriter_writeOutputDataID = (*env)->GetMethodID (env, cls, "writeOutputData", "([BII)V")) == ((void*)0)) { return ; } } while (0) |
| 2491 | cls,do { if ((JPEGImageWriter_writeOutputDataID = (*env)->GetMethodID (env, cls, "writeOutputData", "([BII)V")) == ((void*)0)) { return ; } } while (0) |
| 2492 | "writeOutputData",do { if ((JPEGImageWriter_writeOutputDataID = (*env)->GetMethodID (env, cls, "writeOutputData", "([BII)V")) == ((void*)0)) { return ; } } while (0) |
| 2493 | "([BII)V"))do { if ((JPEGImageWriter_writeOutputDataID = (*env)->GetMethodID (env, cls, "writeOutputData", "([BII)V")) == ((void*)0)) { return ; } } while (0); |
| 2494 | CHECK_NULL(JPEGImageWriter_warningOccurredID = (*env)->GetMethodID(env,do { if ((JPEGImageWriter_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 2495 | cls,do { if ((JPEGImageWriter_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 2496 | "warningOccurred",do { if ((JPEGImageWriter_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0) |
| 2497 | "(I)V"))do { if ((JPEGImageWriter_warningOccurredID = (*env)->GetMethodID (env, cls, "warningOccurred", "(I)V")) == ((void*)0)) { return ; } } while (0); |
| 2498 | CHECK_NULL(JPEGImageWriter_warningWithMessageID =do { if ((JPEGImageWriter_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 2499 | (*env)->GetMethodID(env,do { if ((JPEGImageWriter_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 2500 | cls,do { if ((JPEGImageWriter_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 2501 | "warningWithMessage",do { if ((JPEGImageWriter_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0) |
| 2502 | "(Ljava/lang/String;)V"))do { if ((JPEGImageWriter_warningWithMessageID = (*env)->GetMethodID (env, cls, "warningWithMessage", "(Ljava/lang/String;)V")) == ((void*)0)) { return; } } while (0); |
| 2503 | CHECK_NULL(JPEGImageWriter_writeMetadataID = (*env)->GetMethodID(env,do { if ((JPEGImageWriter_writeMetadataID = (*env)->GetMethodID (env, cls, "writeMetadata", "()V")) == ((void*)0)) { return; } } while (0) |
| 2504 | cls,do { if ((JPEGImageWriter_writeMetadataID = (*env)->GetMethodID (env, cls, "writeMetadata", "()V")) == ((void*)0)) { return; } } while (0) |
| 2505 | "writeMetadata",do { if ((JPEGImageWriter_writeMetadataID = (*env)->GetMethodID (env, cls, "writeMetadata", "()V")) == ((void*)0)) { return; } } while (0) |
| 2506 | "()V"))do { if ((JPEGImageWriter_writeMetadataID = (*env)->GetMethodID (env, cls, "writeMetadata", "()V")) == ((void*)0)) { return; } } while (0); |
| 2507 | CHECK_NULL(JPEGImageWriter_grabPixelsID = (*env)->GetMethodID(env,do { if ((JPEGImageWriter_grabPixelsID = (*env)->GetMethodID (env, cls, "grabPixels", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 2508 | cls,do { if ((JPEGImageWriter_grabPixelsID = (*env)->GetMethodID (env, cls, "grabPixels", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 2509 | "grabPixels",do { if ((JPEGImageWriter_grabPixelsID = (*env)->GetMethodID (env, cls, "grabPixels", "(I)V")) == ((void*)0)) { return; } } while (0) |
| 2510 | "(I)V"))do { if ((JPEGImageWriter_grabPixelsID = (*env)->GetMethodID (env, cls, "grabPixels", "(I)V")) == ((void*)0)) { return; } } while (0); |
| 2511 | CHECK_NULL(JPEGQTable_tableID = (*env)->GetFieldID(env,do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 2512 | qTableClass,do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 2513 | "qTable",do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0) |
| 2514 | "[I"))do { if ((JPEGQTable_tableID = (*env)->GetFieldID(env, qTableClass , "qTable", "[I")) == ((void*)0)) { return; } } while (0); |
| 2515 | CHECK_NULL(JPEGHuffmanTable_lengthsID = (*env)->GetFieldID(env,do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 2516 | huffClass,do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 2517 | "lengths",do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0) |
| 2518 | "[S"))do { if ((JPEGHuffmanTable_lengthsID = (*env)->GetFieldID( env, huffClass, "lengths", "[S")) == ((void*)0)) { return; } } while (0); |
| 2519 | CHECK_NULL(JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env,do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 2520 | huffClass,do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 2521 | "values",do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0) |
| 2522 | "[S"))do { if ((JPEGHuffmanTable_valuesID = (*env)->GetFieldID(env , huffClass, "values", "[S")) == ((void*)0)) { return; } } while (0); |
| 2523 | } |
| 2524 | |
| 2525 | JNIEXPORT__attribute__((visibility("default"))) jlong JNICALL |
| 2526 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_initJPEGImageWriter |
| 2527 | (JNIEnv *env, |
| 2528 | jobject this) { |
| 2529 | |
| 2530 | imageIODataPtr ret; |
| 2531 | struct sun_jpeg_error_mgr *jerr; |
| 2532 | struct jpeg_destination_mgr *dest; |
| 2533 | |
| 2534 | /* This struct contains the JPEG compression parameters and pointers to |
| 2535 | * working space (which is allocated as needed by the JPEG library). |
| 2536 | */ |
| 2537 | struct jpeg_compress_struct *cinfo = |
| 2538 | malloc(sizeof(struct jpeg_compress_struct)); |
| 2539 | if (cinfo == NULL((void*)0)) { |
| 2540 | JNU_ThrowByName( env, |
| 2541 | "java/lang/OutOfMemoryError", |
| 2542 | "Initializing Writer"); |
| 2543 | return 0; |
| 2544 | } |
| 2545 | |
| 2546 | /* We use our private extension JPEG error handler. |
| 2547 | */ |
| 2548 | jerr = malloc (sizeof(struct sun_jpeg_error_mgr)); |
| 2549 | if (jerr == NULL((void*)0)) { |
| 2550 | JNU_ThrowByName( env, |
| 2551 | "java/lang/OutOfMemoryError", |
| 2552 | "Initializing Writer"); |
| 2553 | free(cinfo); |
| 2554 | return 0; |
| 2555 | } |
| 2556 | |
| 2557 | /* We set up the normal JPEG error routines, then override error_exit. */ |
| 2558 | cinfo->err = jpeg_std_errorjStdError(&(jerr->pub)); |
| 2559 | jerr->pub.error_exit = sun_jpeg_error_exit; |
| 2560 | /* We need to setup our own print routines */ |
| 2561 | jerr->pub.output_message = sun_jpeg_output_message; |
| 2562 | /* Now we can setjmp before every call to the library */ |
| 2563 | |
| 2564 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 2565 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 2566 | /* If we get here, the JPEG code has signaled an error. */ |
| 2567 | char buffer[JMSG_LENGTH_MAX200]; |
| 2568 | (*cinfo->err->format_message) ((struct jpeg_common_struct *) cinfo, |
| 2569 | buffer); |
| 2570 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 2571 | return 0; |
| 2572 | } |
| 2573 | |
| 2574 | /* Perform library initialization */ |
| 2575 | jpeg_create_compress(cinfo)jCreaCompress((cinfo), 62, (size_t) sizeof(struct jpeg_compress_struct )); |
| 2576 | |
| 2577 | /* Now set up the destination */ |
| 2578 | dest = malloc(sizeof(struct jpeg_destination_mgr)); |
| 2579 | if (dest == NULL((void*)0)) { |
| 2580 | JNU_ThrowByName( env, |
| 2581 | "java/lang/OutOfMemoryError", |
| 2582 | "Initializing Writer"); |
| 2583 | imageio_dispose((j_common_ptr)cinfo); |
| 2584 | return 0; |
| 2585 | } |
| 2586 | |
| 2587 | dest->init_destination = imageio_init_destination; |
| 2588 | dest->empty_output_buffer = imageio_empty_output_buffer; |
| 2589 | dest->term_destination = imageio_term_destination; |
| 2590 | dest->next_output_byte = NULL((void*)0); |
| 2591 | dest->free_in_buffer = 0; |
| 2592 | |
| 2593 | cinfo->dest = dest; |
| 2594 | |
| 2595 | /* set up the association to persist for future calls */ |
| 2596 | ret = initImageioData(env, (j_common_ptr) cinfo, this); |
| 2597 | if (ret == NULL((void*)0)) { |
| 2598 | (*env)->ExceptionClear(env); |
| 2599 | JNU_ThrowByName( env, |
| 2600 | "java/lang/OutOfMemoryError", |
| 2601 | "Initializing Writer"); |
| 2602 | imageio_dispose((j_common_ptr)cinfo); |
| 2603 | return 0; |
| 2604 | } |
| 2605 | return ptr_to_jlong(ret)((jlong)(ret)); |
| 2606 | } |
| 2607 | |
| 2608 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2609 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_setDest |
| 2610 | (JNIEnv *env, |
| 2611 | jobject this, |
| 2612 | jlong ptr) { |
| 2613 | |
| 2614 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2615 | j_compress_ptr cinfo; |
| 2616 | |
| 2617 | if (data == NULL((void*)0)) { |
| 2618 | JNU_ThrowByName(env, |
| 2619 | "java/lang/IllegalStateException", |
| 2620 | "Attempting to use writer after dispose()"); |
| 2621 | return; |
| 2622 | } |
| 2623 | |
| 2624 | cinfo = (j_compress_ptr) data->jpegObj; |
| 2625 | |
| 2626 | imageio_set_stream(env, data->jpegObj, data, this); |
| 2627 | |
| 2628 | |
| 2629 | // Don't call the init method, as that depends on pinned arrays |
| 2630 | cinfo->dest->next_output_byte = NULL((void*)0); |
| 2631 | cinfo->dest->free_in_buffer = 0; |
| 2632 | } |
| 2633 | |
| 2634 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 2635 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_writeTables |
| 2636 | (JNIEnv *env, |
| 2637 | jobject this, |
| 2638 | jlong ptr, |
| 2639 | jobjectArray qtables, |
| 2640 | jobjectArray DCHuffmanTables, |
| 2641 | jobjectArray ACHuffmanTables) { |
| 2642 | |
| 2643 | struct jpeg_destination_mgr *dest; |
| 2644 | sun_jpeg_error_ptr jerr; |
| 2645 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2646 | j_compress_ptr cinfo; |
| 2647 | |
| 2648 | if (data == NULL((void*)0)) { |
| 2649 | JNU_ThrowByName(env, |
| 2650 | "java/lang/IllegalStateException", |
| 2651 | "Attempting to use writer after dispose()"); |
| 2652 | return; |
| 2653 | } |
| 2654 | |
| 2655 | cinfo = (j_compress_ptr) data->jpegObj; |
| 2656 | dest = cinfo->dest; |
| 2657 | |
| 2658 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 2659 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 2660 | |
| 2661 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 2662 | /* If we get here, the JPEG code has signaled an error |
| 2663 | while writing. */ |
| 2664 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 2665 | if (!(*env)->ExceptionOccurred(env)) { |
| 2666 | char buffer[JMSG_LENGTH_MAX200]; |
| 2667 | (*cinfo->err->format_message) ((j_common_ptr) cinfo, |
| 2668 | buffer); |
| 2669 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 2670 | } |
| 2671 | return; |
| 2672 | } |
| 2673 | |
| 2674 | if (GET_ARRAYS(env, data, |
| 2675 | (const JOCTET **)(&dest->next_output_byte)) == NOT_OK0) { |
| 2676 | (*env)->ExceptionClear(env); |
| 2677 | JNU_ThrowByName(env, |
| 2678 | "javax/imageio/IIOException", |
| 2679 | "Array pin failed"); |
| 2680 | return; |
| 2681 | } |
| 2682 | |
| 2683 | jpeg_suppress_tablesjSuppressTables(cinfo, TRUE1); // Suppress writing of any current |
| 2684 | |
| 2685 | data->streamBuf.suspendable = FALSE0; |
| 2686 | if (qtables != NULL((void*)0)) { |
| 2687 | #ifdef DEBUG_IIO_JPEG |
| 2688 | printf("in writeTables: qtables not NULL\n")__printf_chk (2 - 1, "in writeTables: qtables not NULL\n"); |
| 2689 | #endif |
| 2690 | setQTables(env, (j_common_ptr) cinfo, qtables, TRUE1); |
| 2691 | } |
| 2692 | |
| 2693 | if (DCHuffmanTables != NULL((void*)0)) { |
| 2694 | setHTables(env, (j_common_ptr) cinfo, |
| 2695 | DCHuffmanTables, ACHuffmanTables, TRUE1); |
| 2696 | } |
| 2697 | |
| 2698 | jpeg_write_tablesjWrtTables(cinfo); // Flushes the buffer for you |
| 2699 | RELEASE_ARRAYS(env, data, NULL((void*)0)); |
| 2700 | } |
| 2701 | |
| 2702 | static void freeArray(UINT8** arr, jint size) { |
| 2703 | int i; |
| 2704 | if (arr != NULL((void*)0)) { |
| 2705 | for (i = 0; i < size; i++) { |
| 2706 | if (arr[i] != NULL((void*)0)) { |
| 2707 | free(arr[i]); |
| 2708 | } |
| 2709 | } |
| 2710 | free(arr); |
| 2711 | } |
| 2712 | } |
| 2713 | |
| 2714 | JNIEXPORT__attribute__((visibility("default"))) jboolean JNICALL |
| 2715 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_writeImage |
| 2716 | (JNIEnv *env, |
| 2717 | jobject this, |
| 2718 | jlong ptr, |
| 2719 | jbyteArray buffer, |
| 2720 | jint inCs, jint outCs, |
| 2721 | jint numBands, |
| 2722 | jintArray bandSizes, |
| 2723 | jint srcWidth, |
| 2724 | jint destWidth, jint destHeight, |
| 2725 | jint stepX, jint stepY, |
| 2726 | jobjectArray qtables, |
| 2727 | jboolean writeDQT, |
| 2728 | jobjectArray DCHuffmanTables, |
| 2729 | jobjectArray ACHuffmanTables, |
| 2730 | jboolean writeDHT, |
| 2731 | jboolean optimize, |
| 2732 | jboolean progressive, |
| 2733 | jint numScans, |
| 2734 | jintArray scanInfo, |
| 2735 | jintArray componentIds, |
| 2736 | jintArray HsamplingFactors, |
| 2737 | jintArray VsamplingFactors, |
| 2738 | jintArray QtableSelectors, |
| 2739 | jboolean haveMetadata, |
| 2740 | jint restartInterval) { |
| 2741 | |
| 2742 | struct jpeg_destination_mgr *dest; |
| 2743 | JSAMPROW scanLinePtr; |
| 2744 | int i, j; |
| 2745 | int pixelStride; |
| 2746 | unsigned char *in, *out, *pixelLimit, *scanLineLimit; |
| 2747 | unsigned int scanLineSize, pixelBufferSize; |
| 2748 | int targetLine; |
| 2749 | pixelBufferPtr pb; |
| 2750 | sun_jpeg_error_ptr jerr; |
| 2751 | jint *ids, *hfactors, *vfactors, *qsels; |
| 2752 | jsize qlen, hlen; |
| 2753 | int *scanptr; |
| 2754 | jint *scanData; |
| 2755 | jint *bandSize; |
| 2756 | int maxBandValue, halfMaxBandValue; |
| 2757 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 2758 | j_compress_ptr cinfo; |
| 2759 | UINT8** scale = NULL((void*)0); |
| 2760 | boolean success = TRUE1; |
| 2761 | |
| 2762 | |
| 2763 | /* verify the inputs */ |
| 2764 | |
| 2765 | if (data == NULL((void*)0)) { |
| 2766 | JNU_ThrowByName(env, |
| 2767 | "java/lang/IllegalStateException", |
| 2768 | "Attempting to use writer after dispose()"); |
| 2769 | return JNI_FALSE0; |
| 2770 | } |
| 2771 | |
| 2772 | if ((buffer == NULL((void*)0)) || |
| 2773 | (qtables == NULL((void*)0)) || |
| 2774 | // H tables can be null if optimizing |
| 2775 | (componentIds == NULL((void*)0)) || |
| 2776 | (HsamplingFactors == NULL((void*)0)) || (VsamplingFactors == NULL((void*)0)) || |
| 2777 | (QtableSelectors == NULL((void*)0)) || |
| 2778 | ((numScans != 0) && (scanInfo != NULL((void*)0)))) { |
| 2779 | |
| 2780 | JNU_ThrowNullPointerException(env, 0); |
| 2781 | return JNI_FALSE0; |
| 2782 | |
| 2783 | } |
| 2784 | |
| 2785 | scanLineSize = destWidth * numBands; |
| 2786 | if ((inCs < 0) || (inCs > JCS_YCCK) || |
| 2787 | (outCs < 0) || (outCs > JCS_YCCK) || |
| 2788 | (numBands < 1) || (numBands > MAX_BANDS4) || |
| 2789 | (srcWidth < 0) || |
| 2790 | (destWidth < 0) || (destWidth > srcWidth) || |
| 2791 | (destHeight < 0) || |
| 2792 | (stepX < 0) || (stepY < 0) || |
| 2793 | ((INT_MAX2147483647 / numBands) < destWidth)) /* destWidth causes an integer overflow */ |
| 2794 | { |
| 2795 | JNU_ThrowByName(env, "javax/imageio/IIOException", |
| 2796 | "Invalid argument to native writeImage"); |
| 2797 | return JNI_FALSE0; |
| 2798 | } |
| 2799 | |
| 2800 | if (stepX > srcWidth) { |
| 2801 | stepX = srcWidth; |
| 2802 | } |
| 2803 | |
| 2804 | bandSize = (*env)->GetIntArrayElements(env, bandSizes, NULL((void*)0)); |
| 2805 | CHECK_NULL_RETURN(bandSize, JNI_FALSE)do { if ((bandSize) == ((void*)0)) { return (0); } } while (0 ); |
| 2806 | |
| 2807 | for (i = 0; i < numBands; i++) { |
| 2808 | if (bandSize[i] <= 0 || bandSize[i] > JPEG_BAND_SIZE8) { |
| 2809 | (*env)->ReleaseIntArrayElements(env, bandSizes, |
| 2810 | bandSize, JNI_ABORT2); |
| 2811 | JNU_ThrowByName(env, "javax/imageio/IIOException", "Invalid Image"); |
| 2812 | return JNI_FALSE0; |
| 2813 | } |
| 2814 | } |
| 2815 | |
| 2816 | for (i = 0; i < numBands; i++) { |
| 2817 | if (bandSize[i] != JPEG_BAND_SIZE8) { |
| 2818 | if (scale == NULL((void*)0)) { |
| 2819 | scale = (UINT8**) calloc(numBands, sizeof(UINT8*)); |
| 2820 | |
| 2821 | if (scale == NULL((void*)0)) { |
| 2822 | (*env)->ReleaseIntArrayElements(env, bandSizes, |
| 2823 | bandSize, JNI_ABORT2); |
| 2824 | JNU_ThrowByName( env, "java/lang/OutOfMemoryError", |
| 2825 | "Writing JPEG Stream"); |
| 2826 | return JNI_FALSE0; |
| 2827 | } |
| 2828 | } |
| 2829 | |
| 2830 | maxBandValue = (1 << bandSize[i]) - 1; |
| 2831 | |
| 2832 | scale[i] = (UINT8*) malloc((maxBandValue + 1) * sizeof(UINT8)); |
| 2833 | |
| 2834 | if (scale[i] == NULL((void*)0)) { |
| 2835 | // Cleanup before throwing an out of memory exception |
| 2836 | for (j = 0; j < i; j++) { |
| 2837 | free(scale[j]); |
| 2838 | } |
| 2839 | free(scale); |
| 2840 | (*env)->ReleaseIntArrayElements(env, bandSizes, |
| 2841 | bandSize, JNI_ABORT2); |
| 2842 | JNU_ThrowByName( env, "java/lang/OutOfMemoryError", |
| 2843 | "Writing JPEG Stream"); |
| 2844 | return JNI_FALSE0; |
| 2845 | } |
| 2846 | |
| 2847 | halfMaxBandValue = maxBandValue >> 1; |
| 2848 | |
| 2849 | for (j = 0; j <= maxBandValue; j++) { |
| 2850 | scale[i][j] = (UINT8) |
| 2851 | ((j*MAX_JPEG_BAND_VALUE((1<<8)-1) + halfMaxBandValue)/maxBandValue); |
| 2852 | } |
| 2853 | } |
| 2854 | } |
| 2855 | |
| 2856 | (*env)->ReleaseIntArrayElements(env, bandSizes, |
| 2857 | bandSize, JNI_ABORT2); |
| 2858 | |
| 2859 | cinfo = (j_compress_ptr) data->jpegObj; |
| 2860 | dest = cinfo->dest; |
| 2861 | |
| 2862 | /* Set the buffer as our PixelBuffer */ |
| 2863 | pb = &data->pixelBuf; |
| 2864 | |
| 2865 | if (setPixelBuffer(env, pb, buffer) == NOT_OK0) { |
| 2866 | freeArray(scale, numBands); |
| 2867 | return data->abortFlag; // We already threw an out of memory exception |
| 2868 | } |
| 2869 | |
| 2870 | // Allocate a 1-scanline buffer |
| 2871 | scanLinePtr = (JSAMPROW)malloc(scanLineSize); |
| 2872 | if (scanLinePtr == NULL((void*)0)) { |
| 2873 | freeArray(scale, numBands); |
| 2874 | JNU_ThrowByName( env, |
| 2875 | "java/lang/OutOfMemoryError", |
| 2876 | "Writing JPEG Stream"); |
| 2877 | return data->abortFlag; |
| 2878 | } |
| 2879 | scanLineLimit = scanLinePtr + scanLineSize; |
| 2880 | |
| 2881 | /* Establish the setjmp return context for sun_jpeg_error_exit to use. */ |
| 2882 | jerr = (sun_jpeg_error_ptr) cinfo->err; |
| 2883 | |
| 2884 | if (setjmp(jerr->setjmp_buffer)_setjmp (jerr->setjmp_buffer)) { |
| 2885 | /* If we get here, the JPEG code has signaled an error |
| 2886 | while writing. */ |
| 2887 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 2888 | if (!(*env)->ExceptionOccurred(env)) { |
| 2889 | char buffer[JMSG_LENGTH_MAX200]; |
| 2890 | (*cinfo->err->format_message) ((j_common_ptr) cinfo, |
| 2891 | buffer); |
| 2892 | JNU_ThrowByName(env, "javax/imageio/IIOException", buffer); |
| 2893 | } |
| 2894 | |
| 2895 | freeArray(scale, numBands); |
| 2896 | free(scanLinePtr); |
| 2897 | return data->abortFlag; |
| 2898 | } |
| 2899 | |
| 2900 | // set up parameters |
| 2901 | cinfo->image_width = destWidth; |
| 2902 | cinfo->image_height = destHeight; |
| 2903 | cinfo->input_components = numBands; |
| 2904 | cinfo->in_color_space = inCs; |
| 2905 | |
| 2906 | jpeg_set_defaultsjSetDefaults(cinfo); |
| 2907 | |
| 2908 | jpeg_set_colorspacejSetColorspace(cinfo, outCs); |
| 2909 | |
| 2910 | cinfo->optimize_coding = optimize; |
| 2911 | |
| 2912 | cinfo->write_JFIF_header = FALSE0; |
| 2913 | cinfo->write_Adobe_marker = FALSE0; |
| 2914 | // copy componentIds |
| 2915 | ids = (*env)->GetIntArrayElements(env, componentIds, NULL((void*)0)); |
| 2916 | hfactors = (*env)->GetIntArrayElements(env, HsamplingFactors, NULL((void*)0)); |
| 2917 | vfactors = (*env)->GetIntArrayElements(env, VsamplingFactors, NULL((void*)0)); |
| 2918 | qsels = (*env)->GetIntArrayElements(env, QtableSelectors, NULL((void*)0)); |
| 2919 | |
| 2920 | if (ids && hfactors && vfactors && qsels) { |
| 2921 | for (i = 0; i < numBands; i++) { |
| 2922 | cinfo->comp_info[i].component_id = ids[i]; |
| 2923 | cinfo->comp_info[i].h_samp_factor = hfactors[i]; |
| 2924 | cinfo->comp_info[i].v_samp_factor = vfactors[i]; |
| 2925 | cinfo->comp_info[i].quant_tbl_no = qsels[i]; |
| 2926 | } |
| 2927 | } else { |
| 2928 | success = FALSE0; |
| 2929 | } |
| 2930 | |
| 2931 | if (ids) { |
| 2932 | (*env)->ReleaseIntArrayElements(env, componentIds, ids, JNI_ABORT2); |
| 2933 | } |
| 2934 | if (hfactors) { |
| 2935 | (*env)->ReleaseIntArrayElements(env, HsamplingFactors, hfactors, JNI_ABORT2); |
| 2936 | } |
| 2937 | if (vfactors) { |
| 2938 | (*env)->ReleaseIntArrayElements(env, VsamplingFactors, vfactors, JNI_ABORT2); |
| 2939 | } |
| 2940 | if (qsels) { |
| 2941 | (*env)->ReleaseIntArrayElements(env, QtableSelectors, qsels, JNI_ABORT2); |
| 2942 | } |
| 2943 | if (!success) { |
| 2944 | freeArray(scale, numBands); |
| 2945 | free(scanLinePtr); |
| 2946 | return data->abortFlag; |
| 2947 | } |
| 2948 | |
| 2949 | jpeg_suppress_tablesjSuppressTables(cinfo, TRUE1); // Disable writing any current |
| 2950 | |
| 2951 | qlen = setQTables(env, (j_common_ptr) cinfo, qtables, writeDQT); |
| 2952 | |
| 2953 | if (!optimize) { |
| 2954 | // Set the h tables |
| 2955 | hlen = setHTables(env, |
Value stored to 'hlen' is never read | |
| 2956 | (j_common_ptr) cinfo, |
| 2957 | DCHuffmanTables, |
| 2958 | ACHuffmanTables, |
| 2959 | writeDHT); |
| 2960 | } |
| 2961 | |
| 2962 | if (GET_ARRAYS(env, data, |
| 2963 | (const JOCTET **)(&dest->next_output_byte)) == NOT_OK0) { |
| 2964 | (*env)->ExceptionClear(env); |
| 2965 | freeArray(scale, numBands); |
| 2966 | free(scanLinePtr); |
| 2967 | JNU_ThrowByName(env, |
| 2968 | "javax/imageio/IIOException", |
| 2969 | "Array pin failed"); |
| 2970 | return data->abortFlag; |
| 2971 | } |
| 2972 | |
| 2973 | data->streamBuf.suspendable = FALSE0; |
| 2974 | |
| 2975 | if (progressive) { |
| 2976 | if (numScans == 0) { // then use default scans |
| 2977 | jpeg_simple_progressionjSimProgress(cinfo); |
| 2978 | } else { |
| 2979 | cinfo->num_scans = numScans; |
| 2980 | // Copy the scanInfo to a local array |
| 2981 | // The following is copied from jpeg_simple_progression: |
| 2982 | /* Allocate space for script. |
| 2983 | * We need to put it in the permanent pool in case the application performs |
| 2984 | * multiple compressions without changing the settings. To avoid a memory |
| 2985 | * leak if jpeg_simple_progression is called repeatedly for the same JPEG |
| 2986 | * object, we try to re-use previously allocated space, and we allocate |
| 2987 | * enough space to handle YCbCr even if initially asked for grayscale. |
| 2988 | */ |
| 2989 | if (cinfo->script_space == NULL((void*)0) |
| 2990 | || cinfo->script_space_size < numScans) { |
| 2991 | cinfo->script_space_size = MAX(numScans, 10)((numScans) > (10) ? (numScans) : (10)); |
| 2992 | cinfo->script_space = (jpeg_scan_info *) |
| 2993 | (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, |
| 2994 | JPOOL_PERMANENT0, |
| 2995 | cinfo->script_space_size |
| 2996 | * sizeof(jpeg_scan_info)); |
| 2997 | } |
| 2998 | cinfo->scan_info = cinfo->script_space; |
| 2999 | scanptr = (int *) cinfo->script_space; |
| 3000 | scanData = (*env)->GetIntArrayElements(env, scanInfo, NULL((void*)0)); |
| 3001 | if (scanData == NULL((void*)0)) { |
| 3002 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 3003 | freeArray(scale, numBands); |
| 3004 | free(scanLinePtr); |
| 3005 | return data->abortFlag; |
| 3006 | } |
| 3007 | // number of jints per scan is 9 |
| 3008 | // We avoid a memcpy to handle different size ints |
| 3009 | for (i = 0; i < numScans*9; i++) { |
| 3010 | scanptr[i] = scanData[i]; |
| 3011 | } |
| 3012 | (*env)->ReleaseIntArrayElements(env, scanInfo, |
| 3013 | scanData, JNI_ABORT2); |
| 3014 | |
| 3015 | } |
| 3016 | } |
| 3017 | |
| 3018 | cinfo->restart_interval = restartInterval; |
| 3019 | |
| 3020 | #ifdef DEBUG_IIO_JPEG |
| 3021 | printf("writer setup complete, starting compressor\n")__printf_chk (2 - 1, "writer setup complete, starting compressor\n" ); |
| 3022 | #endif |
| 3023 | |
| 3024 | // start the compressor; tables must already be set |
| 3025 | jpeg_start_compressjStrtCompress(cinfo, FALSE0); // Leaves sent_table alone |
| 3026 | |
| 3027 | if (haveMetadata) { |
| 3028 | // Flush the buffer |
| 3029 | imageio_flush_destination(cinfo); |
| 3030 | // Call Java to write the metadata |
| 3031 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 3032 | (*env)->CallVoidMethod(env, |
| 3033 | this, |
| 3034 | JPEGImageWriter_writeMetadataID); |
| 3035 | if ((*env)->ExceptionOccurred(env) |
| 3036 | || !GET_ARRAYS(env, data, |
| 3037 | (const JOCTET **)(&dest->next_output_byte))) { |
| 3038 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 3039 | } |
| 3040 | } |
| 3041 | |
| 3042 | targetLine = 0; |
| 3043 | pixelBufferSize = srcWidth * numBands; |
| 3044 | pixelStride = numBands * stepX; |
| 3045 | |
| 3046 | // for each line in destHeight |
| 3047 | while ((data->abortFlag == JNI_FALSE0) |
| 3048 | && (cinfo->next_scanline < cinfo->image_height)) { |
| 3049 | // get the line from Java |
| 3050 | RELEASE_ARRAYS(env, data, (const JOCTET *)(dest->next_output_byte)); |
| 3051 | (*env)->CallVoidMethod(env, |
| 3052 | this, |
| 3053 | JPEGImageWriter_grabPixelsID, |
| 3054 | targetLine); |
| 3055 | if ((*env)->ExceptionOccurred(env) |
| 3056 | || !GET_ARRAYS(env, data, |
| 3057 | (const JOCTET **)(&dest->next_output_byte))) { |
| 3058 | cinfo->err->error_exit((j_common_ptr) cinfo); |
| 3059 | } |
| 3060 | |
| 3061 | // subsample it into our buffer |
| 3062 | |
| 3063 | in = data->pixelBuf.buf.bp; |
| 3064 | out = scanLinePtr; |
| 3065 | pixelLimit = in + ((pixelBufferSize > data->pixelBuf.byteBufferLength) ? |
| 3066 | data->pixelBuf.byteBufferLength : pixelBufferSize); |
| 3067 | for (; (in < pixelLimit) && (out < scanLineLimit); in += pixelStride) { |
| 3068 | for (i = 0; i < numBands; i++) { |
| 3069 | if (scale !=NULL((void*)0) && scale[i] != NULL((void*)0)) { |
| 3070 | *out++ = scale[i][*(in+i)]; |
| 3071 | #ifdef DEBUG_IIO_JPEG |
| 3072 | if (in == data->pixelBuf.buf.bp){ // Just the first pixel |
| 3073 | printf("in %d -> out %d, ", *(in+i), *(out-i-1))__printf_chk (2 - 1, "in %d -> out %d, ", *(in+i), *(out-i -1)); |
| 3074 | } |
| 3075 | #endif |
| 3076 | |
| 3077 | #ifdef DEBUG_IIO_JPEG |
| 3078 | if (in == data->pixelBuf.buf.bp){ // Just the first pixel |
| 3079 | printf("\n")__printf_chk (2 - 1, "\n"); |
| 3080 | } |
| 3081 | #endif |
| 3082 | } else { |
| 3083 | *out++ = *(in+i); |
| 3084 | } |
| 3085 | } |
| 3086 | } |
| 3087 | // write it out |
| 3088 | jpeg_write_scanlinesjWrtScanlines(cinfo, (JSAMPARRAY)&scanLinePtr, 1); |
| 3089 | targetLine += stepY; |
| 3090 | } |
| 3091 | |
| 3092 | /* |
| 3093 | * We are done, but we might not have done all the lines, |
| 3094 | * so use jpeg_abort instead of jpeg_finish_compress. |
| 3095 | */ |
| 3096 | if (cinfo->next_scanline == cinfo->image_height) { |
| 3097 | jpeg_finish_compressjFinCompress(cinfo); // Flushes buffer with term_dest |
| 3098 | } else { |
| 3099 | jpeg_abortjAbort((j_common_ptr)cinfo); |
| 3100 | } |
| 3101 | |
| 3102 | freeArray(scale, numBands); |
| 3103 | free(scanLinePtr); |
| 3104 | RELEASE_ARRAYS(env, data, NULL((void*)0)); |
| 3105 | return data->abortFlag; |
| 3106 | } |
| 3107 | |
| 3108 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 3109 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_abortWrite |
| 3110 | (JNIEnv *env, |
| 3111 | jobject this, |
| 3112 | jlong ptr) { |
| 3113 | |
| 3114 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 3115 | |
| 3116 | if (data == NULL((void*)0)) { |
| 3117 | JNU_ThrowByName(env, |
| 3118 | "java/lang/IllegalStateException", |
| 3119 | "Attempting to use writer after dispose()"); |
| 3120 | return; |
| 3121 | } |
| 3122 | |
| 3123 | imageio_abort(env, this, data); |
| 3124 | } |
| 3125 | |
| 3126 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 3127 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_resetWriter |
| 3128 | (JNIEnv *env, |
| 3129 | jobject this, |
| 3130 | jlong ptr) { |
| 3131 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 3132 | j_compress_ptr cinfo; |
| 3133 | |
| 3134 | if (data == NULL((void*)0)) { |
| 3135 | JNU_ThrowByName(env, |
| 3136 | "java/lang/IllegalStateException", |
| 3137 | "Attempting to use writer after dispose()"); |
| 3138 | return; |
| 3139 | } |
| 3140 | |
| 3141 | cinfo = (j_compress_ptr) data->jpegObj; |
| 3142 | |
| 3143 | imageio_reset(env, (j_common_ptr) cinfo, data); |
| 3144 | |
| 3145 | /* |
| 3146 | * The tables have not been reset, and there is no way to do so |
| 3147 | * in IJG without leaking memory. The only situation in which |
| 3148 | * this will cause a problem is if an image-only stream is written |
| 3149 | * with this object without initializing the correct tables first, |
| 3150 | * which should not be possible. |
| 3151 | */ |
| 3152 | |
| 3153 | cinfo->dest->next_output_byte = NULL((void*)0); |
| 3154 | cinfo->dest->free_in_buffer = 0; |
| 3155 | } |
| 3156 | |
| 3157 | JNIEXPORT__attribute__((visibility("default"))) void JNICALL |
| 3158 | Java_com_sun_imageio_plugins_jpeg_JPEGImageWriter_disposeWriter |
| 3159 | (JNIEnv *env, |
| 3160 | jclass writer, |
| 3161 | jlong ptr) { |
| 3162 | |
| 3163 | imageIODataPtr data = (imageIODataPtr)jlong_to_ptr(ptr)((void*)(ptr)); |
| 3164 | j_common_ptr info = destroyImageioData(env, data); |
| 3165 | |
| 3166 | imageio_dispose(info); |
| 3167 | } |