Updates libjpeg-turbo to 1.1.90 (r677)

third_party/libjpeg_turbo/turbojpeg-jni.c

+/*
+ * Copyright (C)2011 D. R. Commander.  All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * - Neither the name of the libjpeg-turbo Project nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "turbojpeg.h"
+#include <jni.h>
+#include "java/org_libjpegturbo_turbojpeg_TJCompressor.h"
+#include "java/org_libjpegturbo_turbojpeg_TJDecompressor.h"
+#include "java/org_libjpegturbo_turbojpeg_TJ.h"
+
+#define _throw(msg) {  \
+        jclass _exccls=(*env)->FindClass(env, "java/lang/Exception");  \
+        if(!_exccls) goto bailout;  \
+        (*env)->ThrowNew(env, _exccls, msg);  \
+        goto bailout;  \
+}
+
+#define bailif0(f) {if(!(f)) goto bailout;}
+
+#define gethandle()  \
+        jclass _cls=(*env)->GetObjectClass(env, obj);  \
+        jfieldID _fid;  \
+        if(!_cls) goto bailout;  \
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "handle", "J"));  \
+        handle=(tjhandle)(jlong)(*env)->GetLongField(env, obj, _fid);  \
+
+JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSize
+        (JNIEnv *env, jclass cls, jint width, jint height, jint jpegSubsamp)
+{
+        jint retval=(jint)tjBufSize(width, height, jpegSubsamp);
+        if(retval==-1) _throw(tjGetErrorStr());
+
+        bailout:
+        return retval;
+}
+
+JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV
+        (JNIEnv *env, jclass cls, jint width, jint height, jint subsamp)
+{
+        jint retval=(jint)tjBufSizeYUV(width, height, subsamp);
+        if(retval==-1) _throw(tjGetErrorStr());
+
+        bailout:
+        return retval;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_init
+        (JNIEnv *env, jobject obj)
+{
+        jclass cls;
+        jfieldID fid;
+        tjhandle handle;
+
+        if((handle=tjInitCompress())==NULL)
+                _throw(tjGetErrorStr());
+
+        bailif0(cls=(*env)->GetObjectClass(env, obj));
+        bailif0(fid=(*env)->GetFieldID(env, cls, "handle", "J"));
+        (*env)->SetLongField(env, obj, fid, (jlong)handle);
+
+        bailout:
+        return;
+}
+
+JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII
+        (JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch,
+                jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
+                jint flags)
+{
+        tjhandle handle=0;
+        unsigned long jpegSize=0;  jsize arraySize=0;
+        unsigned char *srcBuf=NULL, *jpegBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
+                || pitch<0)
+                _throw("Invalid argument in compress()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+
+        arraySize=(pitch==0)? width*tjPixelSize[pf]*height:pitch*height;
+        if((*env)->GetArrayLength(env, src)<arraySize)
+                _throw("Source buffer is not large enough");
+        jpegSize=tjBufSize(width, height, jpegSubsamp);
+        if((*env)->GetArrayLength(env, dst)<(jsize)jpegSize)
+                _throw("Destination buffer is not large enough");
+
+        bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjCompress2(handle, srcBuf, width, pitch, height, pf, &jpegBuf,
+                &jpegSize, jpegSubsamp, jpegQual, flags|TJFLAG_NOREALLOC)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+                jpegBuf=srcBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
+        if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+        return (jint)jpegSize;
+}
+
+JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIII_3BIII
+        (JNIEnv *env, jobject obj, jintArray src, jint width, jint pitch,
+                jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
+                jint flags)
+{
+        tjhandle handle=0;
+        unsigned long jpegSize=0;  jsize arraySize=0;
+        unsigned char *srcBuf=NULL, *jpegBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
+                || pitch<0)
+                _throw("Invalid argument in compress()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+        if(tjPixelSize[pf]!=sizeof(jint))
+                _throw("Pixel format must be 32-bit when compressing from an integer buffer.");
+
+        arraySize=(pitch==0)? width*height:pitch*height;
+        if((*env)->GetArrayLength(env, src)<arraySize)
+                _throw("Source buffer is not large enough");
+        jpegSize=tjBufSize(width, height, jpegSubsamp);
+        if((*env)->GetArrayLength(env, dst)<(jsize)jpegSize)
+                _throw("Destination buffer is not large enough");
+
+        bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjCompress2(handle, srcBuf, width, pitch*sizeof(jint), height, pf,
+                &jpegBuf, &jpegSize, jpegSubsamp, jpegQual, flags|TJFLAG_NOREALLOC)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+                jpegBuf=srcBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
+        if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+        return (jint)jpegSize;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII
+        (JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch,
+                jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
+{
+        tjhandle handle=0;
+        jsize arraySize=0;
+        unsigned char *srcBuf=NULL, *dstBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
+                || pitch<0)
+                _throw("Invalid argument in encodeYUV()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+
+        arraySize=(pitch==0)? width*tjPixelSize[pf]*height:pitch*height;
+        if((*env)->GetArrayLength(env, src)<arraySize)
+                _throw("Source buffer is not large enough");
+        if((*env)->GetArrayLength(env, dst)
+                <(jsize)tjBufSizeYUV(width, height, subsamp))
+                _throw("Destination buffer is not large enough");
+
+        bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjEncodeYUV2(handle, srcBuf, width, pitch, height, pf, dstBuf, subsamp,
+                flags)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+                dstBuf=srcBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+        if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII
+        (JNIEnv *env, jobject obj, jintArray src, jint width, jint pitch,
+                jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
+{
+        tjhandle handle=0;
+        jsize arraySize=0;
+        unsigned char *srcBuf=NULL, *dstBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
+                || pitch<0)
+                _throw("Invalid argument in compress()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+        if(tjPixelSize[pf]!=sizeof(jint))
+                _throw("Pixel format must be 32-bit when encoding from an integer buffer.");
+
+        arraySize=(pitch==0)? width*height:pitch*height;
+        if((*env)->GetArrayLength(env, src)<arraySize)
+                _throw("Source buffer is not large enough");
+        if((*env)->GetArrayLength(env, dst)
+                <(jsize)tjBufSizeYUV(width, height, subsamp))
+                _throw("Destination buffer is not large enough");
+
+        bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjEncodeYUV2(handle, srcBuf, width, pitch*sizeof(jint), height, pf,
+                dstBuf, subsamp, flags)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+                dstBuf=srcBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+        if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy
+        (JNIEnv *env, jobject obj)
+{
+        tjhandle handle=0;
+
+        gethandle();
+
+        if(tjDestroy(handle)==-1) _throw(tjGetErrorStr());
+        (*env)->SetLongField(env, obj, _fid, 0);
+
+        bailout:
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_init
+        (JNIEnv *env, jobject obj)
+{
+        jclass cls;
+        jfieldID fid;
+        tjhandle handle;
+
+        if((handle=tjInitDecompress())==NULL) _throw(tjGetErrorStr());
+
+        bailif0(cls=(*env)->GetObjectClass(env, obj));
+        bailif0(fid=(*env)->GetFieldID(env, cls, "handle", "J"));
+        (*env)->SetLongField(env, obj, fid, (jlong)handle);
+
+        bailout:
+        return;
+}
+
+JNIEXPORT jobjectArray JNICALL Java_org_libjpegturbo_turbojpeg_TJ_getScalingFactors
+        (JNIEnv *env, jclass cls)
+{
+  jclass sfcls=NULL;  jfieldID fid=0;
+        tjscalingfactor *sf=NULL;  int n=0, i;
+        jobject sfobj=NULL;
+        jobjectArray sfjava=NULL;
+
+        if((sf=tjGetScalingFactors(&n))==NULL || n==0)
+                _throw(tjGetErrorStr());
+
+        bailif0(sfcls=(*env)->FindClass(env, "org/libjpegturbo/turbojpeg/TJScalingFactor"));
+        bailif0(sfjava=(jobjectArray)(*env)->NewObjectArray(env, n, sfcls, 0));
+
+        for(i=0; i<n; i++)
+        {
+                bailif0(sfobj=(*env)->AllocObject(env, sfcls));
+                bailif0(fid=(*env)->GetFieldID(env, sfcls, "num", "I"));
+                (*env)->SetIntField(env, sfobj, fid, sf[i].num);
+                bailif0(fid=(*env)->GetFieldID(env, sfcls, "denom", "I"));
+                (*env)->SetIntField(env, sfobj, fid, sf[i].denom);
+                (*env)->SetObjectArrayElement(env, sfjava, i, sfobj);
+        }
+
+        bailout:
+        return sfjava;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressHeader
+        (JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize)
+{
+        tjhandle handle=0;
+        unsigned char *jpegBuf=NULL;
+        int width=0, height=0, jpegSubsamp=-1;
+
+        gethandle();
+
+        if((*env)->GetArrayLength(env, src)<jpegSize)
+                _throw("Source buffer is not large enough");
+
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+
+        if(tjDecompressHeader2(handle, jpegBuf, (unsigned long)jpegSize, 
+                &width, &height, &jpegSubsamp)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+                _throw(tjGetErrorStr());
+        }
+        (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);  jpegBuf=NULL;
+
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+        (*env)->SetIntField(env, obj, _fid, jpegSubsamp);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+        (*env)->SetIntField(env, obj, _fid, width);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+        (*env)->SetIntField(env, obj, _fid, height);
+
+        bailout:
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress___3BI_3BIIIII
+        (JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
+                jint width, jint pitch, jint height, jint pf, jint flags)
+{
+        tjhandle handle=0;
+        jsize arraySize=0;
+        unsigned char *jpegBuf=NULL, *dstBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF)
+                _throw("Invalid argument in decompress()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+
+        if((*env)->GetArrayLength(env, src)<jpegSize)
+                _throw("Source buffer is not large enough");
+        arraySize=(pitch==0)? width*tjPixelSize[pf]*height:pitch*height;
+        if((*env)->GetArrayLength(env, dst)<arraySize)
+                _throw("Destination buffer is not large enough");
+
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjDecompress2(handle, jpegBuf, (unsigned long)jpegSize, dstBuf, width,
+                pitch, height, pf, flags)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+                dstBuf=jpegBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress___3BI_3IIIIII
+        (JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jintArray dst,
+                jint width, jint pitch, jint height, jint pf, jint flags)
+{
+        tjhandle handle=0;
+        jsize arraySize=0;
+        unsigned char *jpegBuf=NULL, *dstBuf=NULL;
+
+        gethandle();
+
+        if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF)
+                _throw("Invalid argument in decompress()");
+        if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
+                _throw("Mismatch between Java and C API");
+        if(tjPixelSize[pf]!=sizeof(jint))
+                _throw("Pixel format must be 32-bit when decompressing to an integer buffer.");
+
+        if((*env)->GetArrayLength(env, src)<jpegSize)
+                _throw("Source buffer is not large enough");
+        arraySize=(pitch==0)? width*height:pitch*height;
+        if((*env)->GetArrayLength(env, dst)<arraySize)
+                _throw("Destination buffer is not large enough");
+
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjDecompress2(handle, jpegBuf, (unsigned long)jpegSize, dstBuf, width,
+                pitch*sizeof(jint), height, pf, flags)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+                dstBuf=jpegBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV
+        (JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
+                jint flags)
+{
+        tjhandle handle=0;
+        unsigned char *jpegBuf=NULL, *dstBuf=NULL;
+        int jpegSubsamp=-1, jpegWidth=0, jpegHeight=0;
+
+        gethandle();
+
+        if((*env)->GetArrayLength(env, src)<jpegSize)
+                _throw("Source buffer is not large enough");
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+        jpegSubsamp=(int)(*env)->GetIntField(env, obj, _fid);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+        jpegWidth=(int)(*env)->GetIntField(env, obj, _fid);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+        jpegHeight=(int)(*env)->GetIntField(env, obj, _fid);
+        if((*env)->GetArrayLength(env, dst)
+                <(jsize)tjBufSizeYUV(jpegWidth, jpegHeight, jpegSubsamp))
+                _throw("Destination buffer is not large enough");
+
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
+        bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
+
+        if(tjDecompressToYUV(handle, jpegBuf, (unsigned long)jpegSize, dstBuf,
+                flags)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+                (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+                dstBuf=jpegBuf=NULL;
+                _throw(tjGetErrorStr());
+        }
+
+        bailout:
+        if(dstBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
+        return;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJTransformer_init
+        (JNIEnv *env, jobject obj)
+{
+        jclass cls;
+        jfieldID fid;
+        tjhandle handle;
+
+        if((handle=tjInitTransform())==NULL) _throw(tjGetErrorStr());
+
+        bailif0(cls=(*env)->GetObjectClass(env, obj));
+        bailif0(fid=(*env)->GetFieldID(env, cls, "handle", "J"));
+        (*env)->SetLongField(env, obj, fid, (jlong)handle);
+
+        bailout:
+        return;
+}
+
+JNIEXPORT jintArray JNICALL Java_org_libjpegturbo_turbojpeg_TJTransformer_transform
+        (JNIEnv *env, jobject obj, jbyteArray jsrcBuf, jint jpegSize,
+                jobjectArray dstobjs, jobjectArray tobjs, jint flags)
+{
+        tjhandle handle=0;  int i;
+        unsigned char *jpegBuf=NULL, **dstBufs=NULL;  jsize n=0;
+        unsigned long *dstSizes=NULL;  tjtransform *t=NULL;
+        jbyteArray *jdstBufs=NULL;
+        int jpegWidth=0, jpegHeight=0, jpegSubsamp;
+        jintArray jdstSizes=0;  jint *dstSizesi=NULL;
+
+        gethandle();
+
+        if((*env)->GetArrayLength(env, jsrcBuf)<jpegSize)
+                _throw("Source buffer is not large enough");
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
+        jpegWidth=(int)(*env)->GetIntField(env, obj, _fid);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
+        jpegHeight=(int)(*env)->GetIntField(env, obj, _fid);
+        bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
+        jpegSubsamp=(int)(*env)->GetIntField(env, obj, _fid);
+
+        n=(*env)->GetArrayLength(env, dstobjs);
+        if(n!=(*env)->GetArrayLength(env, tobjs))
+                _throw("Mismatch between size of transforms array and destination buffers array");
+
+        if((dstBufs=(unsigned char **)malloc(sizeof(unsigned char *)*n))==NULL)
+                _throw("Memory allocation failure");
+        if((jdstBufs=(jbyteArray *)malloc(sizeof(jbyteArray)*n))==NULL)
+                _throw("Memory allocation failure");
+        if((dstSizes=(unsigned long *)malloc(sizeof(unsigned long)*n))==NULL)
+                _throw("Memory allocation failure");
+        if((t=(tjtransform *)malloc(sizeof(tjtransform)*n))==NULL)
+                _throw("Memory allocation failure");
+        for(i=0; i<n; i++)
+        {
+                dstBufs[i]=NULL;  jdstBufs[i]=NULL;  dstSizes[i]=0;
+                memset(&t[i], 0, sizeof(tjtransform));
+        }
+
+        for(i=0; i<n; i++)
+        {
+                jobject tobj;
+
+                bailif0(tobj=(*env)->GetObjectArrayElement(env, tobjs, i));
+                bailif0(_cls=(*env)->GetObjectClass(env, tobj));
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "op", "I"));
+                t[i].op=(*env)->GetIntField(env, tobj, _fid);
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "options", "I"));
+                t[i].options=(*env)->GetIntField(env, tobj, _fid);
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "x", "I"));
+                t[i].r.x=(*env)->GetIntField(env, tobj, _fid);
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "y", "I"));
+                t[i].r.y=(*env)->GetIntField(env, tobj, _fid);
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "width", "I"));
+                t[i].r.w=(*env)->GetIntField(env, tobj, _fid);
+                bailif0(_fid=(*env)->GetFieldID(env, _cls, "height", "I"));
+                t[i].r.h=(*env)->GetIntField(env, tobj, _fid);
+        }
+
+        bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, jsrcBuf, 0));
+        for(i=0; i<n; i++)
+        {
+                int w=jpegWidth, h=jpegHeight;
+                if(t[i].r.w!=0) w=t[i].r.w;
+                if(t[i].r.h!=0) h=t[i].r.h;
+                bailif0(jdstBufs[i]=(*env)->GetObjectArrayElement(env, dstobjs, i));
+                if((*env)->GetArrayLength(env, jdstBufs[i])<tjBufSize(w, h, jpegSubsamp))
+                        _throw("Destination buffer is not large enough");
+                bailif0(dstBufs[i]=(*env)->GetPrimitiveArrayCritical(env, jdstBufs[i], 0));
+        }
+
+        if(tjTransform(handle, jpegBuf, jpegSize, n, dstBufs, dstSizes, t,
+                flags|TJFLAG_NOREALLOC)==-1)
+        {
+                (*env)->ReleasePrimitiveArrayCritical(env, jsrcBuf, jpegBuf, 0);
+                jpegBuf=NULL;
+                for(i=0; i<n; i++)
+                {
+                        (*env)->ReleasePrimitiveArrayCritical(env, jdstBufs[i], dstBufs[i], 0);
+                        dstBufs[i]=NULL;
+                }
+                _throw(tjGetErrorStr());
+        }
+
+        jdstSizes=(*env)->NewIntArray(env, n);
+        bailif0(dstSizesi=(*env)->GetIntArrayElements(env, jdstSizes, 0));
+        for(i=0; i<n; i++) dstSizesi[i]=(int)dstSizes[i];
+
+        bailout:
+        if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, jsrcBuf, jpegBuf, 0);
+        if(dstBufs)
+        {
+                for(i=0; i<n; i++)
+                {
+                        if(dstBufs[i] && jdstBufs && jdstBufs[i])
+                                (*env)->ReleasePrimitiveArrayCritical(env, jdstBufs[i], dstBufs[i], 0);
+                }
+                free(dstBufs);
+        }
+        if(jdstBufs) free(jdstBufs);
+        if(dstSizes) free(dstSizes);
+        if(dstSizesi) (*env)->ReleaseIntArrayElements(env, jdstSizes, dstSizesi, 0);
+        if(t) free(t);
+        return jdstSizes;
+}
+
+JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_destroy
+        (JNIEnv *env, jobject obj)
+{
+        Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy(env, obj);
+}