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turbojpeg-jni.c
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/*
* Copyright (C)2011-2019 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"
#ifdef WIN32
#include "tjutil.h"
#endif
#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 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, tjGetErrorStr2(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, \
tjGetErrorCode(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);
#ifdef _WIN32
#define setenv(envvar, value, dummy) _putenv_s(envvar, value)
#endif
#define PROP2ENV(property, envvar) { \
if ((jName = (*env)->NewStringUTF(env, property)) != NULL && \
(jValue = (*env)->CallStaticObjectMethod(env, cls, mid, \
jName)) != NULL) { \
if ((value = (*env)->GetStringUTFChars(env, jValue, 0)) != NULL) { \
setenv(envvar, value, 1); \
(*env)->ReleaseStringUTFChars(env, jValue, value); \
} \
} \
}
#define SAFE_RELEASE(javaArray, cArray) { \
if (javaArray && cArray) \
(*env)->ReleasePrimitiveArrayCritical(env, javaArray, (void *)cArray, 0); \
cArray = NULL; \
}
static int ProcessSystemProperties(JNIEnv *env)
{
jclass cls;
jmethodID mid;
jstring jName, jValue;
const char *value;
BAILIF0(cls = (*env)->FindClass(env, "java/lang/System"));
BAILIF0(mid = (*env)->GetStaticMethodID(env, cls, "getProperty",
"(Ljava/lang/String;)Ljava/lang/String;"));
PROP2ENV("turbojpeg.optimize", "TJ_OPTIMIZE");
PROP2ENV("turbojpeg.arithmetic", "TJ_ARITHMETIC");
PROP2ENV("turbojpeg.restart", "TJ_RESTART");
PROP2ENV("turbojpeg.progressive", "TJ_PROGRESSIVE");
return 0;
bailout:
return -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)
{
jint retval = (jint)tjBufSize(width, height, jpegSubsamp);
if (retval == -1) THROW_ARG(tjGetErrorStr());
bailout:
return retval;
}
/* TurboJPEG 1.4.x: TJ::bufSizeYUV() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV__IIII
(JNIEnv *env, jclass cls, jint width, jint pad, jint height, jint subsamp)
{
jint retval = (jint)tjBufSizeYUV2(width, pad, height, subsamp);
if (retval == -1) THROW_ARG(tjGetErrorStr());
bailout:
return retval;
}
/* TurboJPEG 1.2.x: TJ::bufSizeYUV() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV__III
(JNIEnv *env, jclass cls, jint width, jint height, jint subsamp)
{
return Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV__IIII(env, cls, width,
4, height,
subsamp);
}
/* 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)
{
jint retval = (jint)tjPlaneSizeYUV(componentID, width, stride, height,
subsamp);
if (retval == -1) THROW_ARG(tjGetErrorStr());
bailout:
return 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)tjPlaneWidth(componentID, width, subsamp);
if (retval == -1) THROW_ARG(tjGetErrorStr());
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)tjPlaneHeight(componentID, height, subsamp);
if (retval == -1) THROW_ARG(tjGetErrorStr());
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 = tjInitCompress()) == NULL)
THROW(tjGetErrorStr(), "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;
}
static jint TJCompressor_compress
(JNIEnv *env, jobject obj, jarray src, jint srcElementSize, jint x, jint y,
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, actualPitch;
unsigned char *srcBuf = NULL, *jpegBuf = NULL;
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");
jpegSize = tjBufSize(width, height, jpegSubsamp);
if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
THROW_ARG("Destination buffer is not large enough");
if (ProcessSystemProperties(env) < 0) goto bailout;
BAILIF0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tjCompress2(handle, &srcBuf[y * actualPitch + x * tjPixelSize[pf]],
width, pitch, height, pf, &jpegBuf, &jpegSize, jpegSubsamp,
jpegQual, flags | TJFLAG_NOREALLOC) == -1) {
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, jpegBuf);
SAFE_RELEASE(src, srcBuf);
return (jint)jpegSize;
}
/* TurboJPEG 1.3.x: TJCompressor::compress() byte source */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jbyteArray dst, jint jpegSubsamp,
jint jpegQual, jint flags)
{
return TJCompressor_compress(env, obj, src, 1, x, y, width, pitch, height,
pf, dst, jpegSubsamp, jpegQual, flags);
}
/* TurboJPEG 1.2.x: TJCompressor::compress() byte source */
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)
{
return TJCompressor_compress(env, obj, src, 1, 0, 0, width, pitch, height,
pf, dst, jpegSubsamp, jpegQual, flags);
}
/* TurboJPEG 1.3.x: TJCompressor::compress() int source */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII
(JNIEnv *env, jobject obj, jintArray src, jint x, jint y, jint width,
jint stride, jint height, jint pf, jbyteArray dst, jint jpegSubsamp,
jint jpegQual, jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in compress()");
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), x, y, width,
stride * sizeof(jint), height, pf, dst,
jpegSubsamp, jpegQual, flags);
bailout:
return 0;
}
/* TurboJPEG 1.2.x: TJCompressor::compress() int source */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIII_3BIII
(JNIEnv *env, jobject obj, jintArray src, jint width, jint stride,
jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in compress()");
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), 0, 0, width,
stride * sizeof(jint), height, pf, dst,
jpegSubsamp, jpegQual, flags);
bailout:
return 0;
}
/* TurboJPEG 1.4.x: TJCompressor::compressFromYUV() */
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compressFromYUV___3_3B_3II_3III_3BII
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jint width, jintArray jSrcStrides, jint height, jint subsamp,
jbyteArray dst, jint jpegQual, jint flags)
{
tjhandle handle = 0;
unsigned long jpegSize = 0;
jbyteArray jSrcPlanes[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanes[3];
unsigned char *jpegBuf = NULL;
int *srcOffsets = NULL, *srcStrides = NULL;
int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
GET_HANDLE();
if (subsamp < 0 || subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
THROW_ARG("Invalid argument in compressFromYUV()");
if (org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
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 = tjBufSize(width, height, subsamp);
if ((*env)->GetArrayLength(env, dst) < (jsize)jpegSize)
THROW_ARG("Destination buffer is not large enough");
if (ProcessSystemProperties(env) < 0) goto bailout;
#define RELEASE_ARRAYS_COMPRESSFROMYUV() { \
SAFE_RELEASE(dst, jpegBuf); \
for (i = 0; i < nc; i++) \
SAFE_RELEASE(jSrcPlanes[i], srcPlanes[i]); \
SAFE_RELEASE(jSrcStrides, srcStrides); \
SAFE_RELEASE(jSrcOffsets, srcOffsets); \
}
BAILIF0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
BAILIF0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
for (i = 0; i < nc; i++) {
int planeSize = tjPlaneSizeYUV(i, width, srcStrides[i], height, subsamp);
int pw = tjPlaneWidth(i, width, subsamp);
if (planeSize < 0 || pw < 0) {
RELEASE_ARRAYS_COMPRESSFROMYUV();
THROW_ARG(tjGetErrorStr());
}
if (srcOffsets[i] < 0) {
RELEASE_ARRAYS_COMPRESSFROMYUV();
THROW_ARG("Invalid argument in compressFromYUV()");
}
if (srcStrides[i] < 0 && srcOffsets[i] - planeSize + pw < 0) {
RELEASE_ARRAYS_COMPRESSFROMYUV();
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] + planeSize) {
RELEASE_ARRAYS_COMPRESSFROMYUV();
THROW_ARG("Source plane is not large enough");
}
BAILIF0(srcPlanes[i] =
(*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));
srcPlanes[i] = &srcPlanes[i][srcOffsets[i]];
}
BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tjCompressFromYUVPlanes(handle, srcPlanes, width, srcStrides, height,
subsamp, &jpegBuf, &jpegSize, jpegQual,
flags | TJFLAG_NOREALLOC) == -1) {
RELEASE_ARRAYS_COMPRESSFROMYUV();
THROW_TJ();
}
bailout:
RELEASE_ARRAYS_COMPRESSFROMYUV();
return (jint)jpegSize;
}
static void TJCompressor_encodeYUV
(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, jint subsamp, jint flags)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
jbyteArray jDstPlanes[3] = { NULL, NULL, NULL };
unsigned char *srcBuf = NULL, *dstPlanes[3];
int *dstOffsets = NULL, *dstStrides = NULL;
int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
height < 1 || pitch < 0 || subsamp < 0 ||
subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
THROW_ARG("Invalid argument in encodeYUV()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
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");
#define RELEASE_ARRAYS_ENCODEYUV() { \
SAFE_RELEASE(src, srcBuf); \
for (i = 0; i < nc; i++) \
SAFE_RELEASE(jDstPlanes[i], dstPlanes[i]); \
SAFE_RELEASE(jDstStrides, dstStrides); \
SAFE_RELEASE(jDstOffsets, dstOffsets); \
}
BAILIF0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
BAILIF0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
for (i = 0; i < nc; i++) {
int planeSize = tjPlaneSizeYUV(i, width, dstStrides[i], height, subsamp);
int pw = tjPlaneWidth(i, width, subsamp);
if (planeSize < 0 || pw < 0) {
RELEASE_ARRAYS_ENCODEYUV();
THROW_ARG(tjGetErrorStr());
}
if (dstOffsets[i] < 0) {
RELEASE_ARRAYS_ENCODEYUV();
THROW_ARG("Invalid argument in encodeYUV()");
}
if (dstStrides[i] < 0 && dstOffsets[i] - planeSize + pw < 0) {
RELEASE_ARRAYS_ENCODEYUV();
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] + planeSize) {
RELEASE_ARRAYS_ENCODEYUV();
THROW_ARG("Destination plane is not large enough");
}
BAILIF0(dstPlanes[i] =
(*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
dstPlanes[i] = &dstPlanes[i][dstOffsets[i]];
}
BAILIF0(srcBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tjEncodeYUVPlanes(handle, &srcBuf[y * actualPitch + x * tjPixelSize[pf]],
width, pitch, height, pf, dstPlanes, dstStrides,
subsamp, flags) == -1) {
RELEASE_ARRAYS_ENCODEYUV();
THROW_TJ();
}
bailout:
RELEASE_ARRAYS_ENCODEYUV();
}
/* TurboJPEG 1.4.x: TJCompressor::encodeYUV() byte source */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIIIII_3_3B_3I_3III
(JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jobjectArray dstobjs,
jintArray jDstOffsets, jintArray jDstStrides, jint subsamp, jint flags)
{
TJCompressor_encodeYUV(env, obj, src, 1, x, y, width, pitch, height, pf,
dstobjs, jDstOffsets, jDstStrides, subsamp, flags);
}
/* TurboJPEG 1.4.x: TJCompressor::encodeYUV() int source */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIIIII_3_3B_3I_3III
(JNIEnv *env, jobject obj, jintArray src, jint x, jint y, jint width,
jint stride, jint height, jint pf, jobjectArray dstobjs,
jintArray jDstOffsets, jintArray jDstStrides, jint subsamp, jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in encodeYUV()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when encoding from an integer buffer.");
TJCompressor_encodeYUV(env, obj, src, sizeof(jint), x, y, width,
stride * sizeof(jint), height, pf, dstobjs,
jDstOffsets, jDstStrides, subsamp, flags);
bailout:
return;
}
static void JNICALL TJCompressor_encodeYUV_12
(JNIEnv *env, jobject obj, jarray src, jint srcElementSize, 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;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || width < 1 ||
height < 1 || pitch < 0)
THROW_ARG("Invalid argument in encodeYUV()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF)
THROW_ARG("Mismatch between Java and C API");
arraySize = (pitch == 0) ? width * tjPixelSize[pf] * height : pitch * height;
if ((*env)->GetArrayLength(env, src) * srcElementSize < arraySize)
THROW_ARG("Source buffer is not large enough");
if ((*env)->GetArrayLength(env, dst) <
(jsize)tjBufSizeYUV(width, height, subsamp))
THROW_ARG("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) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, srcBuf);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, srcBuf);
}
/* TurboJPEG 1.2.x: TJCompressor::encodeYUV() byte source */
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)
{
TJCompressor_encodeYUV_12(env, obj, src, 1, width, pitch, height, pf, dst,
subsamp, flags);
}
/* TurboJPEG 1.2.x: TJCompressor::encodeYUV() int source */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII
(JNIEnv *env, jobject obj, jintArray src, jint width, jint stride,
jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in encodeYUV()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when encoding from an integer buffer.");
TJCompressor_encodeYUV_12(env, obj, src, sizeof(jint), width,
stride * sizeof(jint), height, pf, dst, subsamp,
flags);
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();
if (tjDestroy(handle) == -1) THROW_TJ();
(*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 = tjInitDecompress()) == NULL)
THROW(tjGetErrorStr(), "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 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 = tjGetScalingFactors(&n)) == NULL || n == 0)
THROW_ARG(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;
}
/* 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;
int width = 0, height = 0, jpegSubsamp = -1, jpegColorspace = -1;
GET_HANDLE();
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("Source buffer is not large enough");
BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tjDecompressHeader3(handle, jpegBuf, (unsigned long)jpegSize, &width,
&height, &jpegSubsamp, &jpegColorspace) == -1) {
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
SAFE_RELEASE(src, jpegBuf);
BAILIF0(_fid = (*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
(*env)->SetIntField(env, obj, _fid, jpegSubsamp);
if ((_fid = (*env)->GetFieldID(env, _cls, "jpegColorspace", "I")) == 0)
(*env)->ExceptionClear(env);
else
(*env)->SetIntField(env, obj, _fid, jpegColorspace);
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:
SAFE_RELEASE(src, jpegBuf);
}
static void TJDecompressor_decompress
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jarray dst,
jint dstElementSize, jint x, jint y, jint width, jint pitch, jint height,
jint pf, jint flags)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
unsigned char *jpegBuf = NULL, *dstBuf = NULL;
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");
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");
BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tjDecompress2(handle, jpegBuf, (unsigned long)jpegSize,
&dstBuf[y * actualPitch + x * tjPixelSize[pf]], width,
pitch, height, pf, flags) == -1) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
}
/* TurboJPEG 1.3.x: TJDecompressor::decompress() byte destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress___3BI_3BIIIIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
jint x, jint y, jint width, jint pitch, jint height, jint pf, jint flags)
{
TJDecompressor_decompress(env, obj, src, jpegSize, dst, 1, x, y, width,
pitch, height, pf, flags);
}
/* TurboJPEG 1.2.x: TJDecompressor::decompress() byte destination */
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)
{
TJDecompressor_decompress(env, obj, src, jpegSize, dst, 1, 0, 0, width,
pitch, height, pf, flags);
}
/* TurboJPEG 1.3.x: TJDecompressor::decompress() int destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress___3BI_3IIIIIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jintArray dst,
jint x, jint y, jint width, jint stride, jint height, jint pf, jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decompress()");
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), x, y,
width, stride * sizeof(jint), height, pf, flags);
bailout:
return;
}
/* TurboJPEG 1.2.x: TJDecompressor::decompress() int destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress___3BI_3IIIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jintArray dst,
jint width, jint stride, jint height, jint pf, jint flags)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decompress()");
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), 0, 0,
width, stride * sizeof(jint), height, pf, flags);
bailout:
return;
}
/* TurboJPEG 1.4.x: TJDecompressor::decompressToYUV() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV___3BI_3_3B_3II_3III
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize,
jobjectArray dstobjs, jintArray jDstOffsets, jint desiredWidth,
jintArray jDstStrides, jint desiredHeight, jint flags)
{
tjhandle handle = 0;
jbyteArray jDstPlanes[3] = { NULL, NULL, NULL };
unsigned char *jpegBuf = NULL, *dstPlanes[3];
int *dstOffsets = NULL, *dstStrides = NULL;
int jpegSubsamp = -1, jpegWidth = 0, jpegHeight = 0;
int nc = 0, i, width, height, scaledWidth, scaledHeight, nsf = 0;
tjscalingfactor *sf;
GET_HANDLE();
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("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);
nc = (jpegSubsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3);
width = desiredWidth;
height = desiredHeight;
if (width == 0) width = jpegWidth;
if (height == 0) height = jpegHeight;
sf = tjGetScalingFactors(&nsf);
if (!sf || nsf < 1)
THROW_ARG(tjGetErrorStr());
for (i = 0; i < nsf; i++) {
scaledWidth = TJSCALED(jpegWidth, sf[i]);
scaledHeight = TJSCALED(jpegHeight, sf[i]);
if (scaledWidth <= width && scaledHeight <= height)
break;
}
if (i >= nsf)
THROW_ARG("Could not scale down to desired image dimensions");
#define RELEASE_ARRAYS_DECOMPRESSTOYUV() { \
SAFE_RELEASE(src, jpegBuf); \
for (i = 0; i < nc; i++) \
SAFE_RELEASE(jDstPlanes[i], dstPlanes[i]); \
SAFE_RELEASE(jDstStrides, dstStrides); \
SAFE_RELEASE(jDstOffsets, dstOffsets); \
}
BAILIF0(dstOffsets = (*env)->GetPrimitiveArrayCritical(env, jDstOffsets, 0));
BAILIF0(dstStrides = (*env)->GetPrimitiveArrayCritical(env, jDstStrides, 0));
for (i = 0; i < nc; i++) {
int planeSize = tjPlaneSizeYUV(i, scaledWidth, dstStrides[i], scaledHeight,
jpegSubsamp);
int pw = tjPlaneWidth(i, scaledWidth, jpegSubsamp);
if (planeSize < 0 || pw < 0) {
RELEASE_ARRAYS_DECOMPRESSTOYUV();
THROW_ARG(tjGetErrorStr());
}
if (dstOffsets[i] < 0) {
RELEASE_ARRAYS_DECOMPRESSTOYUV();
THROW_ARG("Invalid argument in decompressToYUV()");
}
if (dstStrides[i] < 0 && dstOffsets[i] - planeSize + pw < 0) {
RELEASE_ARRAYS_DECOMPRESSTOYUV();
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] + planeSize) {
RELEASE_ARRAYS_DECOMPRESSTOYUV();
THROW_ARG("Destination plane is not large enough");
}
BAILIF0(dstPlanes[i] =
(*env)->GetPrimitiveArrayCritical(env, jDstPlanes[i], 0));
dstPlanes[i] = &dstPlanes[i][dstOffsets[i]];
}
BAILIF0(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, src, 0));
if (tjDecompressToYUVPlanes(handle, jpegBuf, (unsigned long)jpegSize,
dstPlanes, desiredWidth, dstStrides,
desiredHeight, flags) == -1) {
RELEASE_ARRAYS_DECOMPRESSTOYUV();
THROW_TJ();
}
bailout:
RELEASE_ARRAYS_DECOMPRESSTOYUV();
}
/* TurboJPEG 1.2.x: TJDecompressor::decompressToYUV() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV___3BI_3BI
(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;
GET_HANDLE();
if ((*env)->GetArrayLength(env, src) < jpegSize)
THROW_ARG("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_ARG("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) {
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, dstBuf);
SAFE_RELEASE(src, jpegBuf);
}
static void TJDecompressor_decodeYUV
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jintArray jSrcStrides, jint subsamp, jarray dst, jint dstElementSize,
jint x, jint y, jint width, jint pitch, jint height, jint pf, jint flags)
{
tjhandle handle = 0;
jsize arraySize = 0, actualPitch;
jbyteArray jSrcPlanes[3] = { NULL, NULL, NULL };
const unsigned char *srcPlanes[3];
unsigned char *dstBuf = NULL;
int *srcOffsets = NULL, *srcStrides = NULL;
int nc = (subsamp == org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY ? 1 : 3), i;
GET_HANDLE();
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF || subsamp < 0 ||
subsamp >= org_libjpegturbo_turbojpeg_TJ_NUMSAMP)
THROW_ARG("Invalid argument in decodeYUV()");
if (org_libjpegturbo_turbojpeg_TJ_NUMPF != TJ_NUMPF ||
org_libjpegturbo_turbojpeg_TJ_NUMSAMP != TJ_NUMSAMP)
THROW_ARG("Mismatch between Java and C API");
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");
#define RELEASE_ARRAYS_DECODEYUV() { \
SAFE_RELEASE(dst, dstBuf); \
for (i = 0; i < nc; i++) \
SAFE_RELEASE(jSrcPlanes[i], srcPlanes[i]); \
SAFE_RELEASE(jSrcStrides, srcStrides); \
SAFE_RELEASE(jSrcOffsets, srcOffsets); \
}
BAILIF0(srcOffsets = (*env)->GetPrimitiveArrayCritical(env, jSrcOffsets, 0));
BAILIF0(srcStrides = (*env)->GetPrimitiveArrayCritical(env, jSrcStrides, 0));
for (i = 0; i < nc; i++) {
int planeSize = tjPlaneSizeYUV(i, width, srcStrides[i], height, subsamp);
int pw = tjPlaneWidth(i, width, subsamp);
if (planeSize < 0 || pw < 0) {
RELEASE_ARRAYS_DECODEYUV();
THROW_ARG(tjGetErrorStr());
}
if (srcOffsets[i] < 0) {
RELEASE_ARRAYS_DECODEYUV();
THROW_ARG("Invalid argument in decodeYUV()");
}
if (srcStrides[i] < 0 && srcOffsets[i] - planeSize + pw < 0) {
RELEASE_ARRAYS_DECODEYUV();
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] + planeSize) {
RELEASE_ARRAYS_DECODEYUV();
THROW_ARG("Source plane is not large enough");
}
BAILIF0(srcPlanes[i] =
(*env)->GetPrimitiveArrayCritical(env, jSrcPlanes[i], 0));
srcPlanes[i] = &srcPlanes[i][srcOffsets[i]];
}
BAILIF0(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tjDecodeYUVPlanes(handle, srcPlanes, srcStrides, subsamp,
&dstBuf[y * actualPitch + x * tjPixelSize[pf]], width,
pitch, height, pf, flags) == -1) {
RELEASE_ARRAYS_DECODEYUV();
THROW_TJ();
}
bailout:
RELEASE_ARRAYS_DECODEYUV();
}