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turbojpeg-jni.c
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/*
* Copyright (C)2011-2024 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 <limits.h>
#include "turbojpeg.h"
#include "jinclude.h"
#include <jni.h>
#include "java/org_libjpegturbo_turbojpeg_TJCompressor.h"
#include "java/org_libjpegturbo_turbojpeg_TJDecompressor.h"
#include "java/org_libjpegturbo_turbojpeg_TJTransformer.h"
#include "java/org_libjpegturbo_turbojpeg_TJ.h"
#define BAILIF0(f) { \
if (!(f) || (*env)->ExceptionCheck(env)) { \
goto bailout; \
} \
}
#define BAILIF0NOEC(f) { \
if (!(f)) { \
goto bailout; \
} \
}
#define THROW(msg, exceptionClass) { \
jclass _exccls = (*env)->FindClass(env, exceptionClass); \
\
BAILIF0(_exccls); \
(*env)->ThrowNew(env, _exccls, msg); \
goto bailout; \
}
#define THROW_TJ() { \
jclass _exccls; \
jmethodID _excid; \
jobject _excobj; \
jstring _errstr; \
\
BAILIF0(_errstr = (*env)->NewStringUTF(env, tj3GetErrorStr(handle))); \
BAILIF0(_exccls = (*env)->FindClass(env, \
"org/libjpegturbo/turbojpeg/TJException")); \
BAILIF0(_excid = (*env)->GetMethodID(env, _exccls, "<init>", \
"(Ljava/lang/String;I)V")); \
BAILIF0(_excobj = (*env)->NewObject(env, _exccls, _excid, _errstr, \
tj3GetErrorCode(handle))); \
(*env)->Throw(env, _excobj); \
goto bailout; \
}
#define THROW_ARG(msg) THROW(msg, "java/lang/IllegalArgumentException")
#define THROW_MEM() \
THROW("Memory allocation failure", "java/lang/OutOfMemoryError");
#define GET_HANDLE() \
jclass _cls = (*env)->GetObjectClass(env, obj); \
jfieldID _fid; \
\
BAILIF0(_cls); \
BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "handle", "J")); \
handle = (tjhandle)(size_t)(*env)->GetLongField(env, obj, _fid);
#define SAFE_RELEASE(javaArray, cArray) { \
if (javaArray && cArray) \
(*env)->ReleasePrimitiveArrayCritical(env, javaArray, (void *)cArray, 0); \
cArray = NULL; \
}
#define PAD(v, p) ((v + (p) - 1) & (~((p) - 1)))
/* TurboJPEG 1.2.x: TJ.bufSize() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSize
(JNIEnv *env, jclass cls, jint width, jint height, jint jpegSubsamp)
{
size_t retval = tj3JPEGBufSize(width, height, jpegSubsamp);
if (retval == 0) THROW_ARG(tj3GetErrorStr(NULL));
if (retval > (size_t)INT_MAX)
THROW_ARG("Image is too large");
bailout:
return (jint)retval;
}
/* TurboJPEG 1.4.x: TJ.bufSizeYUV() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV__IIII
(JNIEnv *env, jclass cls, jint width, jint align, jint height, jint subsamp)
{
size_t retval = tj3YUVBufSize(width, align, height, subsamp);
if (retval == 0) THROW_ARG(tj3GetErrorStr(NULL));
if (retval > (size_t)INT_MAX)
THROW_ARG("Image is too large");
bailout:
return (jint)retval;
}
/* TurboJPEG 1.4.x: TJ.planeSizeYUV() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_planeSizeYUV__IIIII
(JNIEnv *env, jclass cls, jint componentID, jint width, jint stride,
jint height, jint subsamp)
{
size_t retval = tj3YUVPlaneSize(componentID, width, stride, height, subsamp);
if (retval == 0) THROW_ARG(tj3GetErrorStr(NULL));
if (retval > (size_t)INT_MAX)
THROW_ARG("Image is too large");
bailout:
return (jint)retval;
}
/* TurboJPEG 1.4.x: TJ.planeWidth() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_planeWidth__III
(JNIEnv *env, jclass cls, jint componentID, jint width, jint subsamp)
{
jint retval = (jint)tj3YUVPlaneWidth(componentID, width, subsamp);
if (retval == 0) THROW_ARG(tj3GetErrorStr(NULL));
bailout:
return retval;
}
/* TurboJPEG 1.4.x: TJ.planeHeight() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_planeHeight__III
(JNIEnv *env, jclass cls, jint componentID, jint height, jint subsamp)
{
jint retval = (jint)tj3YUVPlaneHeight(componentID, height, subsamp);
if (retval == 0) THROW_ARG(tj3GetErrorStr(NULL));
bailout:
return retval;
}
/* TurboJPEG 1.2.x: TJCompressor.init() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_init
(JNIEnv *env, jobject obj)
{
jclass cls;
jfieldID fid;
tjhandle handle;
if ((handle = tj3Init(TJINIT_COMPRESS)) == NULL)
THROW(tj3GetErrorStr(NULL), "org/libjpegturbo/turbojpeg/TJException");
BAILIF0(cls = (*env)->GetObjectClass(env, obj));
BAILIF0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
(*env)->SetLongField(env, obj, fid, (size_t)handle);
bailout:
return;
}
/* TurboJPEG 3: TJCompressor.set() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_set
(JNIEnv *env, jobject obj, jint param, jint value)
{
tjhandle handle = 0;
GET_HANDLE();
if (tj3Set(handle, param, value) == -1)
THROW_TJ();
bailout:
return;
}
/* TurboJPEG 3: TJCompressor.get() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_get
(JNIEnv *env, jobject obj, jint param)
{
tjhandle handle = 0;
GET_HANDLE();
return tj3Get(handle, param);
bailout:
return -1;
}
static jint TJCompressor_compress
(JNIEnv *env, jobject obj, jarray src, jint srcElementSize, jint precision,
jint x, jint y, jint width, jint pitch, jint height, jint pf,
jbyteArray dst)
{
tjhandle handle = 0;
size_t jpegSize = 0;
jsize arraySize = 0, actualPitch;
void *srcBuf = NULL;
unsigned char *jpegBuf = NULL;
int jpegSubsamp;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
height < 1 || pitch < 0)
THROW_ARG("Invalid argument in compress*()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
THROW_ARG("Mismatch between Java and C API");
actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
THROW_ARG("Source buffer is not large enough");
jpegSubsamp = tj3Get(handle, TJPARAM_SUBSAMP);
if (tj3Get(handle, TJPARAM_LOSSLESS) && jpegSubsamp != TJSAMP_GRAY)
jpegSubsamp = TJSAMP_444;
else if (jpegSubsamp == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
jpegSize = tj3JPEGBufSize(width, height, jpegSubsamp);
if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
THROW_ARG("Destination buffer is not large enough");
if (tj3Set(handle, TJPARAM_NOREALLOC, 1) == -1)
THROW_TJ();
BAILIF0NOEC(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (precision == 8) {
if (tj3Compress8(handle, &((unsigned char *)srcBuf)[y * actualPitch +
x * tjPixelSize[pf]],
width, pitch, height, pf, &jpegBuf, &jpegSize) == -1) {
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
THROW_TJ();
}
} else if (precision == 12) {
if (tj3Compress12(handle, &((short *)srcBuf)[y * actualPitch +
x * tjPixelSize[pf]],
width, pitch, height, pf, &jpegBuf, &jpegSize) == -1) {
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
THROW_TJ();
}
} else {
if (tj3Compress16(handle, &((unsigned short *)srcBuf)[y * actualPitch +
x * tjPixelSize[pf]],
width, pitch, height, pf, &jpegBuf, &jpegSize) == -1) {
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
THROW_TJ();
}
}
bailout:
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
return (jint)jpegSize;
}
/* TurboJPEG 3: TJCompressor.compress8() byte source */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress8___3BIIIIII_3B
(JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jbyteArray dst)
{
return TJCompressor_compress(env, obj, src, 1, 8, x, y, width, pitch, height,
pf, dst);
}
/* TurboJPEG 3: TJCompressor.compress12() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress12
(JNIEnv *env, jobject obj, jshortArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jbyteArray dst)
{
return TJCompressor_compress(env, obj, src, 1, 12, x, y, width, pitch,
height, pf, dst);
}
/* TurboJPEG 3: TJCompressor.compress16() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress16
(JNIEnv *env, jobject obj, jshortArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jbyteArray dst)
{
return TJCompressor_compress(env, obj, src, 1, 16, x, y, width, pitch,
height, pf, dst);
}
/* TurboJPEG 3: TJCompressor.compress8() int source */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress8___3IIIIIII_3B
(JNIEnv *env, jobject obj, jintArray src, jint x, jint y, jint width,
jint stride, jint height, jint pf, jbyteArray dst)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in compress8()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when compressing from an integer buffer.");
return TJCompressor_compress(env, obj, src, sizeof(jint), 8, x, y, width,
stride * sizeof(jint), height, pf, dst);
bailout:
return 0;
}
/* TurboJPEG 3: TJCompressor.compressFromYUV8() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compressFromYUV8
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jint width, jintArray jSrcStrides, jint height, jbyteArray dst)
{
tjhandle handle = 0;
size_t jpegSize = 0;
jbyteArray jSrcPlanes[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanesTmp[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanes[3] = { NULL, NULL, NULL };
jint srcOffsetsTmp[3] = { 0, 0, 0 }, srcStridesTmp[3] = { 0, 0, 0 };
int srcOffsets[3] = { 0, 0, 0 }, srcStrides[3] = { 0, 0, 0 };
unsigned char *jpegBuf = NULL;
int nc = 0, i, subsamp;
GET_HANDLE();
if (org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
if ((subsamp = tj3Get(handle, TJPARAM_SUBSAMP)) == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
nc = subsamp == TJSAMP_GRAY ? 1 : 3;
if ((*env)->GetArrayLength(env, srcobjs) < nc)
THROW_ARG("Planes array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jSrcOffsets) < nc)
THROW_ARG("Offsets array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jSrcStrides) < nc)
THROW_ARG("Strides array is too small for the subsampling type");
jpegSize = tj3JPEGBufSize(width, height, subsamp);
if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
THROW_ARG("Destination buffer is not large enough");
if (tj3Set(handle, TJPARAM_NOREALLOC, 1) == -1)
THROW_TJ();
(*env)->GetIntArrayRegion(env, jSrcOffsets, 0, nc, srcOffsetsTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
srcOffsets[i] = srcOffsetsTmp[i];
(*env)->GetIntArrayRegion(env, jSrcStrides, 0, nc, srcStridesTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
srcStrides[i] = srcStridesTmp[i];
for (i = 0; i < nc; i++) {
size_t planeSize = tj3YUVPlaneSize(i, width, srcStrides[i], height,
subsamp);
int pw = tj3YUVPlaneWidth(i, width, subsamp);
if (planeSize == 0 || pw == 0)
THROW_ARG(tj3GetErrorStr(NULL));
if (planeSize > (size_t)INT_MAX)
THROW_ARG("Source plane is too large");
if (srcOffsets[i] < 0)
THROW_ARG("Invalid argument in compressFromYUV8()");
if (srcStrides[i] < 0 && srcOffsets[i] - (int)planeSize + pw < 0)
THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
BAILIF0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
if ((*env)->GetArrayLength(env, jSrcPlanes[i]) <
srcOffsets[i] + (int)planeSize)
THROW_ARG("Source plane is not large enough");
}
for (i = 0; i < nc; i++) {
BAILIF0NOEC(srcPlanesTmp[i] =
(*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));
srcPlanes[i] = &srcPlanesTmp[i][srcOffsets[i]];
}
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tj3CompressFromYUVPlanes8(handle, srcPlanes, width, srcStrides, height,
&jpegBuf, &jpegSize) == -1) {
SAFE_RELEASE(dst, jpegBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jSrcPlanes[i], srcPlanesTmp[i]);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, jpegBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jSrcPlanes[i], srcPlanesTmp[i]);
return (jint)jpegSize;
}
static void TJCompressor_encodeYUV8
(JNIEnv *env, jobject obj, jarray src, jint srcElementSize, jint x, jint y,
jint width, jint pitch, jint height, jint pf, jobjectArray dstobjs,
jintArray jDstOffsets, jintArray jDstStrides)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
unsigned char *srcBuf = NULL;
jbyteArray jDstPlanes[3] = { NULL, NULL, NULL };
unsigned char *dstPlanesTmp[3] = { NULL, NULL, NULL };
unsigned char *dstPlanes[3] = { NULL, NULL, NULL };
jint dstOffsetsTmp[3] = { 0, 0, 0 }, dstStridesTmp[3] = { 0, 0, 0 };
int dstOffsets[3] = { 0, 0, 0 }, dstStrides[3] = { 0, 0, 0 };
int nc = 0, i, subsamp;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
height < 1 || pitch < 0)
THROW_ARG("Invalid argument in encodeYUV8()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
if ((subsamp = tj3Get(handle, TJPARAM_SUBSAMP)) == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
nc = subsamp == TJSAMP_GRAY ? 1 : 3;
if ((*env)->GetArrayLength(env, dstobjs) < nc)
THROW_ARG("Planes array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jDstOffsets) < nc)
THROW_ARG("Offsets array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jDstStrides) < nc)
THROW_ARG("Strides array is too small for the subsampling type");
actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
THROW_ARG("Source buffer is not large enough");
(*env)->GetIntArrayRegion(env, jDstOffsets, 0, nc, dstOffsetsTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
dstOffsets[i] = dstOffsetsTmp[i];
(*env)->GetIntArrayRegion(env, jDstStrides, 0, nc, dstStridesTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
dstStrides[i] = dstStridesTmp[i];
for (i = 0; i < nc; i++) {
size_t planeSize = tj3YUVPlaneSize(i, width, dstStrides[i], height,
subsamp);
int pw = tj3YUVPlaneWidth(i, width, subsamp);
if (planeSize == 0 || pw == 0)
THROW_ARG(tj3GetErrorStr(NULL));
if (planeSize > (size_t)INT_MAX)
THROW_ARG("Destination plane is too large");
if (dstOffsets[i] < 0)
THROW_ARG("Invalid argument in encodeYUV8()");
if (dstStrides[i] < 0 && dstOffsets[i] - (int)planeSize + pw < 0)
THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
BAILIF0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
if ((*env)->GetArrayLength(env, jDstPlanes[i]) <
dstOffsets[i] + (int)planeSize)
THROW_ARG("Destination plane is not large enough");
}
for (i = 0; i < nc; i++) {
BAILIF0NOEC(dstPlanesTmp[i] =
(*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
dstPlanes[i] = &dstPlanesTmp[i][dstOffsets[i]];
}
BAILIF0NOEC(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tj3EncodeYUVPlanes8(handle,
&srcBuf[y * actualPitch + x * tjPixelSize[pf]],
width, pitch, height, pf, dstPlanes,
dstStrides) == -1) {
SAFE_RELEASE(src, srcBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jDstPlanes[i], dstPlanesTmp[i]);
THROW_TJ();
}
bailout:
SAFE_RELEASE(src, srcBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jDstPlanes[i], dstPlanesTmp[i]);
}
/* TurboJPEG 3: TJCompressor.encodeYUV8() byte source */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV8___3BIIIIII_3_3B_3I_3I
(JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jobjectArray dstobjs,
jintArray jDstOffsets, jintArray jDstStrides)
{
TJCompressor_encodeYUV8(env, obj, src, 1, x, y, width, pitch, height, pf,
dstobjs, jDstOffsets, jDstStrides);
}
/* TurboJPEG 3: TJCompressor.encodeYUV8() int source */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV8___3IIIIIII_3_3B_3I_3I
(JNIEnv *env, jobject obj, jintArray src, jint x, jint y, jint width,
jint stride, jint height, jint pf, jobjectArray dstobjs,
jintArray jDstOffsets, jintArray jDstStrides)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in encodeYUV8()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when encoding from an integer buffer.");
TJCompressor_encodeYUV8(env, obj, src, sizeof(jint), x, y, width,
stride * sizeof(jint), height, pf, dstobjs,
jDstOffsets, jDstStrides);
bailout:
return;
}
/* TurboJPEG 1.2.x: TJCompressor.destroy() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy
(JNIEnv *env, jobject obj)
{
tjhandle handle = 0;
GET_HANDLE();
tj3Destroy(handle);
(*env)->SetLongField(env, obj, _fid, 0);
bailout:
return;
}
/* TurboJPEG 1.2.x: TJDecompressor.init() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_init
(JNIEnv *env, jobject obj)
{
jclass cls;
jfieldID fid;
tjhandle handle;
if ((handle = tj3Init(TJINIT_DECOMPRESS)) == NULL)
THROW(tj3GetErrorStr(NULL), "org/libjpegturbo/turbojpeg/TJException");
BAILIF0(cls = (*env)->GetObjectClass(env, obj));
BAILIF0(fid = (*env)->GetFieldID(env, cls, "handle", "J"));
(*env)->SetLongField(env, obj, fid, (size_t)handle);
bailout:
return;
}
/* TurboJPEG 3: TJDecompressor.set() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_set
(JNIEnv *env, jobject obj, jint param, jint value)
{
Java_org_libjpegturbo_turbojpeg_TJCompressor_set(env, obj, param, value);
}
/* TurboJPEG 3: TJDecompressor.get() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_get
(JNIEnv *env, jobject obj, jint param)
{
return Java_org_libjpegturbo_turbojpeg_TJCompressor_get(env, obj, param);
}
/* TurboJPEG 1.2.x: TJDecompressor.getScalingFactors() */
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 = tj3GetScalingFactors(&n)) == NULL || n == 0)
THROW_ARG(tj3GetErrorStr(NULL));
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;
}
/* TurboJPEG 1.2.x: TJDecompressor.decompressHeader() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressHeader
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize)
{
tjhandle handle = 0;
unsigned char *jpegBuf = NULL;
GET_HANDLE();
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("Source buffer is not large enough");
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tj3DecompressHeader(handle, jpegBuf, (size_t)jpegSize) == -1) {
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
bailout:
SAFE_RELEASE(src, jpegBuf);
}
/* TurboJPEG 3: TJDecompressor.setCroppingRegion() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_setCroppingRegion
(JNIEnv *env, jobject obj)
{
tjhandle handle = 0;
jclass sfcls, crcls;
jobject sfobj, crobj;
tjregion croppingRegion;
tjscalingfactor scalingFactor;
GET_HANDLE();
BAILIF0(sfcls = (*env)->FindClass(env,
"org/libjpegturbo/turbojpeg/TJScalingFactor"));
BAILIF0(_fid =
(*env)->GetFieldID(env, _cls, "scalingFactor",
"Lorg/libjpegturbo/turbojpeg/TJScalingFactor;"));
BAILIF0(sfobj = (*env)->GetObjectField(env, obj, _fid));
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "num", "I"));
scalingFactor.num = (*env)->GetIntField(env, sfobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "denom", "I"));
scalingFactor.denom = (*env)->GetIntField(env, sfobj, _fid);
if (tj3SetScalingFactor(handle, scalingFactor) == -1)
THROW_TJ();
BAILIF0(crcls = (*env)->FindClass(env, "java/awt/Rectangle"));
BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "croppingRegion",
"Ljava/awt/Rectangle;"));
BAILIF0(crobj = (*env)->GetObjectField(env, obj, _fid));
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "x", "I"));
croppingRegion.x = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "y", "I"));
croppingRegion.y = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "width", "I"));
croppingRegion.w = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "height", "I"));
croppingRegion.h = (*env)->GetIntField(env, crobj, _fid);
if (tj3SetCroppingRegion(handle, croppingRegion) == -1)
THROW_TJ();
bailout:
return;
}
static void TJDecompressor_decompress
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jarray dst,
jint dstElementSize, int precision, jint x, jint y, jint pitch, jint pf)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
unsigned char *jpegBuf = NULL;
void *dstBuf = NULL;
jclass sfcls, crcls;
jobject sfobj, crobj;
tjscalingfactor scalingFactor;
tjregion cr;
int jpegWidth, jpegHeight, scaledWidth, scaledHeight;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decompress*()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
THROW_ARG("Mismatch between Java and C API");
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("Source buffer is not large enough");
if ((jpegWidth = tj3Get(handle, TJPARAM_JPEGWIDTH)) == -1)
THROW_ARG("JPEG header has not yet been read");
if ((jpegHeight = tj3Get(handle, TJPARAM_JPEGHEIGHT)) == -1)
THROW_ARG("JPEG header has not yet been read");
BAILIF0(sfcls = (*env)->FindClass(env,
"org/libjpegturbo/turbojpeg/TJScalingFactor"));
BAILIF0(_fid =
(*env)->GetFieldID(env, _cls, "scalingFactor",
"Lorg/libjpegturbo/turbojpeg/TJScalingFactor;"));
BAILIF0(sfobj = (*env)->GetObjectField(env, obj, _fid));
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "num", "I"));
scalingFactor.num = (*env)->GetIntField(env, sfobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "denom", "I"));
scalingFactor.denom = (*env)->GetIntField(env, sfobj, _fid);
if (tj3SetScalingFactor(handle, scalingFactor) == -1)
THROW_TJ();
scaledWidth = TJSCALED(jpegWidth, scalingFactor);
scaledHeight = TJSCALED(jpegHeight, scalingFactor);
BAILIF0(crcls = (*env)->FindClass(env, "java/awt/Rectangle"));
BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "croppingRegion",
"Ljava/awt/Rectangle;"));
BAILIF0(crobj = (*env)->GetObjectField(env, obj, _fid));
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "x", "I"));
cr.x = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "y", "I"));
cr.y = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "width", "I"));
cr.w = (*env)->GetIntField(env, crobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, crcls, "height", "I"));
cr.h = (*env)->GetIntField(env, crobj, _fid);
if (cr.x != 0 || cr.y != 0 || cr.w != 0 || cr.h != 0) {
scaledWidth = cr.w ? cr.w : scaledWidth - cr.x;
scaledHeight = cr.h ? cr.h : scaledHeight - cr.y;
}
actualPitch = (pitch == 0) ? scaledWidth * tjPixelSize[pf] : pitch;
arraySize = (y + scaledHeight - 1) * actualPitch +
(x + scaledWidth) * tjPixelSize[pf];
if ((*env)->GetArrayLength(env, dst) * dstElementSize < arraySize)
THROW_ARG("Destination buffer is not large enough");
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
BAILIF0NOEC(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (precision == 8) {
if (tj3Decompress8(handle, jpegBuf, (size_t)jpegSize,
&((unsigned char *)dstBuf)[y * actualPitch +
x * tjPixelSize[pf]],
pitch, pf) == -1) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
} else if (precision == 12) {
if (tj3Decompress12(handle, jpegBuf, (size_t)jpegSize,
&((short *)dstBuf)[y * actualPitch +
x * tjPixelSize[pf]],
pitch, pf) == -1) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
} else {
if (tj3Decompress16(handle, jpegBuf, (size_t)jpegSize,
&((unsigned short *)dstBuf)[y * actualPitch +
x * tjPixelSize[pf]],
pitch, pf) == -1) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
}
bailout:
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
}
/* TurboJPEG 3: TJDecompressor.decompress8() byte destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress8___3BI_3BIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
jint x, jint y, jint pitch, jint pf)
{
TJDecompressor_decompress(env, obj, src, jpegSize, dst, 1, 8, x, y, pitch,
pf);
}
/* TurboJPEG 3: TJDecompressor.decompress12() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress12
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jshortArray dst,
jint x, jint y, jint pitch, jint pf)
{
TJDecompressor_decompress(env, obj, src, jpegSize, dst, 1, 12, x, y, pitch,
pf);
}
/* TurboJPEG 3: TJDecompressor.decompress16() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress16
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jshortArray dst,
jint x, jint y, jint pitch, jint pf)
{
TJDecompressor_decompress(env, obj, src, jpegSize, dst, 1, 16, x, y, pitch,
pf);
}
/* TurboJPEG 3: TJDecompressor.decompress8() int destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress8___3BI_3IIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jintArray dst,
jint x, jint y, jint stride, jint pf)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decompress8()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when decompressing to an integer buffer.");
TJDecompressor_decompress(env, obj, src, jpegSize, dst, sizeof(jint), 8, x,
y, stride * sizeof(jint), pf);
bailout:
return;
}
/* TurboJPEG 3: TJDecompressor.decompressToYUV8() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV8
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize,
jobjectArray dstobjs, jintArray jDstOffsets, jintArray jDstStrides)
{
tjhandle handle = 0;
unsigned char *jpegBuf = NULL;
jbyteArray jDstPlanes[3] = { NULL, NULL, NULL };
unsigned char *dstPlanesTmp[3] = { NULL, NULL, NULL };
unsigned char *dstPlanes[3] = { NULL, NULL, NULL };
jint dstOffsetsTmp[3] = { 0, 0, 0 }, dstStridesTmp[3] = { 0, 0, 0 };
int dstOffsets[3] = { 0, 0, 0 }, dstStrides[3] = { 0, 0, 0 };
jclass sfcls;
jobject sfobj;
int jpegSubsamp, jpegWidth = 0, jpegHeight = 0;
int nc = 0, i, scaledWidth, scaledHeight;
tjscalingfactor scalingFactor;
GET_HANDLE();
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("Source buffer is not large enough");
if ((jpegWidth = tj3Get(handle, TJPARAM_JPEGWIDTH)) == -1)
THROW_ARG("JPEG header has not yet been read");
if ((jpegHeight = tj3Get(handle, TJPARAM_JPEGHEIGHT)) == -1)
THROW_ARG("JPEG header has not yet been read");
BAILIF0(sfcls = (*env)->FindClass(env,
"org/libjpegturbo/turbojpeg/TJScalingFactor"));
BAILIF0(_fid =
(*env)->GetFieldID(env, _cls, "scalingFactor",
"Lorg/libjpegturbo/turbojpeg/TJScalingFactor;"));
BAILIF0(sfobj = (*env)->GetObjectField(env, obj, _fid));
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "num", "I"));
scalingFactor.num = (*env)->GetIntField(env, sfobj, _fid);
BAILIF0(_fid = (*env)->GetFieldID(env, sfcls, "denom", "I"));
scalingFactor.denom = (*env)->GetIntField(env, sfobj, _fid);
if (tj3SetScalingFactor(handle, scalingFactor) == -1)
THROW_TJ();
scaledWidth = TJSCALED(jpegWidth, scalingFactor);
scaledHeight = TJSCALED(jpegHeight, scalingFactor);
if ((jpegSubsamp = tj3Get(handle, TJPARAM_SUBSAMP)) == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
nc = jpegSubsamp == TJSAMP_GRAY ? 1 : 3;
(*env)->GetIntArrayRegion(env, jDstOffsets, 0, nc, dstOffsetsTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
dstOffsets[i] = dstOffsetsTmp[i];
(*env)->GetIntArrayRegion(env, jDstStrides, 0, nc, dstStridesTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
dstStrides[i] = dstStridesTmp[i];
for (i = 0; i < nc; i++) {
size_t planeSize = tj3YUVPlaneSize(i, scaledWidth, dstStrides[i],
scaledHeight, jpegSubsamp);
int pw = tj3YUVPlaneWidth(i, scaledWidth, jpegSubsamp);
if (planeSize == 0 || pw == 0)
THROW_ARG(tj3GetErrorStr(NULL));
if (planeSize > (size_t)INT_MAX)
THROW_ARG("Destination plane is too large");
if (dstOffsets[i] < 0)
THROW_ARG("Invalid argument in decompressToYUV8()");
if (dstStrides[i] < 0 && dstOffsets[i] - (int)planeSize + pw < 0)
THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
BAILIF0(jDstPlanes[i] = (*env)->GetObjectArrayElement(env, dstobjs, i));
if ((*env)->GetArrayLength(env, jDstPlanes[i]) <
dstOffsets[i] + (int)planeSize)
THROW_ARG("Destination plane is not large enough");
}
for (i = 0; i < nc; i++) {
BAILIF0NOEC(dstPlanesTmp[i] =
(*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
dstPlanes[i] = &dstPlanesTmp[i][dstOffsets[i]];
}
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tj3DecompressToYUVPlanes8(handle, jpegBuf, (size_t)jpegSize, dstPlanes,
dstStrides) == -1) {
SAFE_RELEASE(src, jpegBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jDstPlanes[i], dstPlanesTmp[i]);
THROW_TJ();
}
bailout:
SAFE_RELEASE(src, jpegBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jDstPlanes[i], dstPlanesTmp[i]);
}
static void TJDecompressor_decodeYUV8
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jintArray jSrcStrides, jarray dst, jint dstElementSize, jint x, jint y,
jint width, jint pitch, jint height, jint pf)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
jbyteArray jSrcPlanes[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanesTmp[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanes[3] = { NULL, NULL, NULL };
jint srcOffsetsTmp[3] = { 0, 0, 0 }, srcStridesTmp[3] = { 0, 0, 0 };
int srcOffsets[3] = { 0, 0, 0 }, srcStrides[3] = { 0, 0, 0 };
unsigned char *dstBuf = NULL;
int nc = 0, i, subsamp;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decodeYUV8()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
if ((subsamp = tj3Get(handle, TJPARAM_SUBSAMP)) == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
nc = subsamp == TJSAMP_GRAY ? 1 : 3;
if ((*env)->GetArrayLength(env, srcobjs) < nc)
THROW_ARG("Planes array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jSrcOffsets) < nc)
THROW_ARG("Offsets array is too small for the subsampling type");
if ((*env)->GetArrayLength(env, jSrcStrides) < nc)
THROW_ARG("Strides array is too small for the subsampling type");
actualPitch = (pitch == 0) ? width * tjPixelSize[pf] : pitch;
arraySize = (y + height - 1) * actualPitch + (x + width) * tjPixelSize[pf];
if ((*env)->GetArrayLength(env, dst) * dstElementSize < arraySize)
THROW_ARG("Destination buffer is not large enough");
(*env)->GetIntArrayRegion(env, jSrcOffsets, 0, nc, srcOffsetsTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
srcOffsets[i] = srcOffsetsTmp[i];
(*env)->GetIntArrayRegion(env, jSrcStrides, 0, nc, srcStridesTmp);
if ((*env)->ExceptionCheck(env)) goto bailout;
for (i = 0; i < 3; i++)
srcStrides[i] = srcStridesTmp[i];
for (i = 0; i < nc; i++) {
size_t planeSize = tj3YUVPlaneSize(i, width, srcStrides[i], height,
subsamp);
int pw = tj3YUVPlaneWidth(i, width, subsamp);
if (planeSize == 0 || pw == 0)
THROW_ARG(tj3GetErrorStr(NULL));
if (planeSize > (size_t)INT_MAX)
THROW_ARG("Source plane is too large");
if (srcOffsets[i] < 0)
THROW_ARG("Invalid argument in decodeYUV8()");
if (srcStrides[i] < 0 && srcOffsets[i] - (int)planeSize + pw < 0)
THROW_ARG("Negative plane stride would cause memory to be accessed below plane boundary");
BAILIF0(jSrcPlanes[i] = (*env)->GetObjectArrayElement(env, srcobjs, i));
if ((*env)->GetArrayLength(env, jSrcPlanes[i]) <
srcOffsets[i] + (int)planeSize)
THROW_ARG("Source plane is not large enough");
}
for (i = 0; i < nc; i++) {
BAILIF0NOEC(srcPlanesTmp[i] =
(*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));