ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
65a85ce34e043d0cb02589ee88ade6759db6e056
mozjpeg/turbojpeg-jni.c
DRC fc01f4673b TurboJPEG 3 API overhaul 
(ChangeLog update forthcoming)

- Prefix all function names with "tj3" and remove version suffixes from
  function names.  (Future API overhauls will increment the prefix to
  "tj4", etc., thus retaining backward API/ABI compatibility without
  versioning each individual function.)

- Replace stateless boolean flags (including TJ*FLAG_ARITHMETIC and
  TJ*FLAG_LOSSLESS, which were never released) with stateful integer
  parameters, the value of which persists between function calls.
  * Use parameters for the JPEG quality and subsampling as well, in
    order to eliminate the awkwardness of specifying function arguments
    that weren't relevant for lossless compression.
  * tj3DecompressHeader() now stores all relevant information about the
    JPEG image, including the width, height, subsampling type, entropy
    coding type, etc. in parameters rather than returning that
    information in its arguments.
  * TJ*FLAG_LIMITSCANS has been reimplemented as an integer parameter
    (TJ*PARAM_SCANLIMIT) that allows the number of scans to be
    specified.

- Use the const keyword for all pointer arguments to unmodified
  buffers, as well as for both dimensions of 2D pointers.  Addresses
  #395.

- Use size_t rather than unsigned long to represent buffer sizes, since
  unsigned long is a 32-bit type on Windows.  Addresses #24.

- Return 0 from all buffer size functions if an error occurs, rather
  than awkwardly trying to return -1 in an unsigned data type.

- Implement 12-bit and 16-bit data precision using dedicated
  compression, decompression, and image I/O functions/methods.
  * Suffix the names of all data-precision-specific functions with 8,
    12, or 16.
  * Because the YUV functions are intended to be used for video, they
    are currently only implemented with 8-bit data precision, but they
    can be expanded to 12-bit data precision in the future, if
    necessary.
  * Extend TJUnitTest and TJBench to test 12-bit and 16-bit data
    precision, using a new -precision option.
  * Add appropriate regression tests for all of the above to the 'test'
    target.
  * Extend tjbenchtest to test 12-bit and 16-bit data precision, and
    add separate 'tjtest12' and 'tjtest16' targets.
  * BufferedImage I/O in the Java API is currently limited to 8-bit
    data precision, since the BufferedImage class does not
    straightforwardly support higher data precisions.
  * Extend the PPM reader to convert 12-bit and 16-bit PBMPLUS files
    to grayscale or CMYK pixels, as it already does for 8-bit files.

- Properly accommodate lossless JPEG using dedicated parameters
  (TJ*PARAM_LOSSLESS, TJ*PARAM_LOSSLESSPSV, and TJ*PARAM_LOSSLESSPT),
  rather than using a flag and awkwardly repurposing the JPEG quality.
  Update TJBench to properly reflect whether a JPEG image is lossless.

- Re-organize the TJBench usage screen.

- Update the Java docs using Java 11, to improve the formatting and
  eliminate HTML frames.

- Use the accurate integer DCT algorithm by default for both
  compression and decompression, since the "fast" algorithm is a legacy
  feature, it does not pass the ISO compliance tests, and it is not
  actually faster on modern x86 CPUs.
  * Remove the -accuratedct option from TJBench and TJExample.

- Re-implement the 'tjtest' target using a CMake script that enables
  the appropriate tests, depending on the data precision and whether or
  not the Java API is part of the build.

- Consolidate the C and Java versions of tjbenchtest into one script.

- Consolidate the C and Java versions of tjexampletest into one script.

- Combine all initialization functions into a single function
  (tj3Init()) that accepts an integer parameter specifying the
  subsystems to initialize.

- Enable decompression scaling explicitly, using a new function/method
  (tj3SetScalingFactor()/TJDecompressor.setScalingFactor()), rather
  than implicitly using awkward "desired width"/"desired height"
  parameters.

- Introduce a new macro/constant (TJUNSCALED/TJ.UNSCALED) that maps to
  a scaling factor of 1/1.

- Implement partial image decompression, using a new function/method
  (tj3SetCroppingRegion()/TJDecompressor.setCroppingRegion()) and
  TJBench option (-crop).  Extend tjbenchtest to test the new feature.
  Addresses #1.

- Allow the JPEG colorspace to be specified explicitly when
  compressing, using a new parameter (TJ*PARAM_COLORSPACE).  This
  allows JPEG images with the RGB and CMYK colorspaces to be created.

- Remove the error/difference image feature from TJBench.  Identical
  images to the ones that TJBench created can be generated using
  ImageMagick with
  'magick composite <original_image> <output_image> -compose difference <diff_image>'

- Handle JPEG images with unknown subsampling types.  TJ*PARAM_SUBSAMP
  is set to TJ*SAMP_UNKNOWN (== -1) for such images, but they can still
  be decompressed fully into packed-pixel images or losslessly
  transformed (with the exception of lossless cropping.)  They cannot
  be partially decompressed or decompressed into planar YUV images.
  Note also that TJBench, due to its lack of support for imperfect
  transforms, requires that the subsampling type be known when
  rotating, flipping, or transversely transposing an image.  Addresses
  #436

- The Java version of TJBench now has identical functionality to the C
  version.  This was accomplished by (somewhat hackishly) calling the
  TurboJPEG C image I/O functions through JNI and copying the pixels
  between the C heap and the Java heap.

- Add parameters (TJ*PARAM_RESTARTROWS and TJ*PARAM_RESTARTBLOCKS) and
  a TJBench option (-restart) to allow the restart marker interval to
  be specified when compressing.  Eliminate the undocumented TJ_RESTART
  environment variable.

- Add a parameter (TJ*PARAM_OPTIMIZE), a transform option
  (TJ*OPT_OPTIMIZE), and a TJBench option (-optimize) to allow
  optimized baseline Huffman coding to be specified when compressing.
  Eliminate the undocumented TJ_OPTIMIZE environment variable.

- Add parameters (TJ*PARAM_XDENSITY, TJ*PARAM_DENSITY, and
  TJ*DENSITYUNITS) to allow the pixel density to be specified when
  compressing or saving a Windows BMP image and to be queried when
  decompressing or loading a Windows BMP image.  Addresses #77.

- Refactor the fuzz targets to use the new API.
  * Extend decompression coverage to 12-bit and 16-bit data precision.
  * Replace the awkward cjpeg12 and cjpeg16 targets with proper
    TurboJPEG-based compress12, compress12-lossless, and
    compress16-lossless targets

- Fix innocuous UBSan warnings uncovered by the new fuzzers.

- Implement previous versions of the TurboJPEG API by wrapping the new
  functions (tested by running the 2.1.x versions of TJBench, via
  tjbenchtest, and TJUnitTest against the new implementation.)
  * Remove all JNI functions for deprecated Java methods and implement
    the deprecated methods using pure Java wrappers.  It should be
    understood that backward API compatibility in Java applies only to
    the Java classes and that one cannot mix and match a JAR file from
    one version of libjpeg-turbo with a JNI library from another
    version.

- tj3Destroy() now silently accepts a NULL handle.

- tj3Alloc() and tj3Free() now return/accept void pointers, as malloc()
  and free() do.

- The image I/O functions now accept a TurboJPEG instance handle, which
  is used to transmit/receive parameters and to receive error
  information.

Closes #517
2023-01-25 19:09:34 -06:00

1397 lines
51 KiB
C
Raw Blame History

/*
* Copyright (C)2011-2023 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; \
}
/* 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));
srcPlanes[i] = &srcPlanesTmp[i][srcOffsets[i]];
}
BAILIF0NOEC(dstBuf = (*env)->GetPrimitiveArrayCritical(env, dst, 0));
if (tj3DecodeYUVPlanes8(handle, srcPlanes, srcStrides,
&dstBuf[y * actualPitch + x * tjPixelSize[pf]],
width, pitch, height, pf) == -1) {
SAFE_RELEASE(dst, dstBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jSrcPlanes[i], srcPlanesTmp[i]);
THROW_TJ();
}
bailout:
SAFE_RELEASE(dst, dstBuf);
for (i = 0; i < nc; i++)
SAFE_RELEASE(jSrcPlanes[i], srcPlanesTmp[i]);
}
/* TurboJPEG 3: TJDecompressor::decodeYUV8() byte destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decodeYUV8___3_3B_3I_3I_3BIIIIII
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jintArray jSrcStrides, jbyteArray dst, jint x, jint y, jint width,
jint pitch, jint height, jint pf)
{
TJDecompressor_decodeYUV8(env, obj, srcobjs, jSrcOffsets, jSrcStrides, dst,
1, x, y, width, pitch, height, pf);
}
/* TurboJPEG 3: TJDecompressor::decodeYUV8() int destination */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decodeYUV8___3_3B_3I_3I_3IIIIIII
(JNIEnv *env, jobject obj, jobjectArray srcobjs, jintArray jSrcOffsets,
jintArray jSrcStrides, jintArray dst, jint x, jint y, jint width,
jint stride, jint height, jint pf)
{
if (pf < 0 || pf >= org_libjpegturbo_turbojpeg_TJ_NUMPF)
THROW_ARG("Invalid argument in decodeYUV8()");
if (tjPixelSize[pf] != sizeof(jint))
THROW_ARG("Pixel format must be 32-bit when decoding to an integer buffer.");
TJDecompressor_decodeYUV8(env, obj, srcobjs, jSrcOffsets, jSrcStrides, dst,
sizeof(jint), x, y, width, stride * sizeof(jint),
height, pf);
bailout:
return;
}
/* TurboJPEG 1.2.x: TJTransformer::init() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJTransformer_init
(JNIEnv *env, jobject obj)
{
jclass cls;
jfieldID fid;
tjhandle handle;
if ((handle = tj3Init(TJINIT_TRANSFORM)) == 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;
}
typedef struct _JNICustomFilterParams {
JNIEnv *env;
jobject tobj;
jobject cfobj;
} JNICustomFilterParams;
static int JNICustomFilter(short *coeffs, tjregion arrayRegion,
tjregion planeRegion, int componentIndex,
int transformIndex, tjtransform *transform)
{
JNICustomFilterParams *params = (JNICustomFilterParams *)transform->data;
JNIEnv *env = params->env;
jobject tobj = params->tobj, cfobj = params->cfobj;
jobject arrayRegionObj, planeRegionObj, bufobj, borobj;
jclass cls;
jmethodID mid;
jfieldID fid;
BAILIF0(bufobj = (*env)->NewDirectByteBuffer(env, coeffs,
sizeof(short) * arrayRegion.w * arrayRegion.h));
BAILIF0(cls = (*env)->FindClass(env, "java/nio/ByteOrder"));
BAILIF0(mid = (*env)->GetStaticMethodID(env, cls, "nativeOrder",
"()Ljava/nio/ByteOrder;"));
BAILIF0(borobj = (*env)->CallStaticObjectMethod(env, cls, mid));
BAILIF0(cls = (*env)->GetObjectClass(env, bufobj));
BAILIF0(mid = (*env)->GetMethodID(env, cls, "order",
"(Ljava/nio/ByteOrder;)Ljava/nio/ByteBuffer;"));
(*env)->CallObjectMethod(env, bufobj, mid, borobj);
BAILIF0(mid = (*env)->GetMethodID(env, cls, "asShortBuffer",
"()Ljava/nio/ShortBuffer;"));
BAILIF0(bufobj = (*env)->CallObjectMethod(env, bufobj, mid));
BAILIF0(cls = (*env)->FindClass(env, "java/awt/Rectangle"));
BAILIF0(arrayRegionObj = (*env)->AllocObject(env, cls));
BAILIF0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
(*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.x);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
(*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.y);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
(*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.w);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
(*env)->SetIntField(env, arrayRegionObj, fid, arrayRegion.h);
BAILIF0(planeRegionObj = (*env)->AllocObject(env, cls));
BAILIF0(fid = (*env)->GetFieldID(env, cls, "x", "I"));
(*env)->SetIntField(env, planeRegionObj, fid, planeRegion.x);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "y", "I"));
(*env)->SetIntField(env, planeRegionObj, fid, planeRegion.y);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "width", "I"));
(*env)->SetIntField(env, planeRegionObj, fid, planeRegion.w);
BAILIF0(fid = (*env)->GetFieldID(env, cls, "height", "I"));
(*env)->SetIntField(env, planeRegionObj, fid, planeRegion.h);
BAILIF0(cls = (*env)->GetObjectClass(env, cfobj));
BAILIF0(mid = (*env)->GetMethodID(env, cls, "customFilter",
"(Ljava/nio/ShortBuffer;Ljava/awt/Rectangle;Ljava/awt/Rectangle;IILorg/libjpegturbo/turbojpeg/TJTransform;)V"));
(*env)->CallVoidMethod(env, cfobj, mid, bufobj, arrayRegionObj,
planeRegionObj, componentIndex, transformIndex, tobj);
return 0;
bailout:
return -1;
}
/* TurboJPEG 1.2.x: TJTransformer::transform() */
JNIEXPORT jintArray JNICALL Java_org_libjpegturbo_turbojpeg_TJTransformer_transform
(JNIEnv *env, jobject obj, jbyteArray jsrcBuf, jint jpegSize,
jobjectArray dstobjs, jobjectArray tobjs)
{
tjhandle handle = 0;
unsigned char *jpegBuf = NULL, **dstBufs = NULL;
jsize n = 0;
size_t *dstSizes = NULL;
tjtransform *t = NULL;
jbyteArray *jdstBufs = NULL;
int i, jpegWidth = 0, jpegHeight = 0, jpegSubsamp;
jintArray jdstSizes = 0;
jint *dstSizesi = NULL;
JNICustomFilterParams *params = NULL;
GET_HANDLE();
if ((*env)->GetArrayLength(env, jsrcBuf) < 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");
if ((jpegSubsamp = tj3Get(handle, TJPARAM_SUBSAMP)) == TJSAMP_UNKNOWN)
THROW_ARG("TJPARAM_SUBSAMP must be specified");
n = (*env)->GetArrayLength(env, dstobjs);
if (n != (*env)->GetArrayLength(env, tobjs))
THROW_ARG("Mismatch between size of transforms array and destination buffers array");
if ((dstBufs =
(unsigned char **)malloc(sizeof(unsigned char *) * n)) == NULL)
THROW_MEM();
if ((jdstBufs = (jbyteArray *)malloc(sizeof(jbyteArray) * n)) == NULL)
THROW_MEM();
if ((dstSizes = (size_t *)malloc(sizeof(size_t) * n)) == NULL)
THROW_MEM();
if ((t = (tjtransform *)malloc(sizeof(tjtransform) * n)) == NULL)
THROW_MEM();
if ((params = (JNICustomFilterParams *)malloc(sizeof(JNICustomFilterParams) *
n)) == NULL)
THROW_MEM();
for (i = 0; i < n; i++) {
dstBufs[i] = NULL; jdstBufs[i] = NULL; dstSizes[i] = 0;
memset(&t[i], 0, sizeof(tjtransform));
memset(&params[i], 0, sizeof(JNICustomFilterParams));
}
for (i = 0; i < n; i++) {
jobject tobj, cfobj;
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(_fid = (*env)->GetFieldID(env, _cls, "cf",
"Lorg/libjpegturbo/turbojpeg/TJCustomFilter;"));
cfobj = (*env)->GetObjectField(env, tobj, _fid);
if (cfobj) {
params[i].env = env;
params[i].tobj = tobj;
params[i].cfobj = cfobj;
t[i].customFilter = JNICustomFilter;
t[i].data = (void *)&params[i];
}
}
if (tj3Set(handle, TJPARAM_NOREALLOC, 1) == -1)
THROW_TJ();
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 ((size_t)(*env)->GetArrayLength(env, jdstBufs[i]) <
tj3JPEGBufSize(w, h, jpegSubsamp))
THROW_ARG("Destination buffer is not large enough");
}
BAILIF0NOEC(jpegBuf = (*env)->GetPrimitiveArrayCritical(env, jsrcBuf, 0));
for (i = 0; i < n; i++)
BAILIF0NOEC(dstBufs[i] =
(*env)->GetPrimitiveArrayCritical(env, jdstBufs[i], 0));
if (tj3Transform(handle, jpegBuf, jpegSize, n, dstBufs, dstSizes, t) == -1) {
for (i = 0; i < n; i++)
SAFE_RELEASE(jdstBufs[i], dstBufs[i]);
SAFE_RELEASE(jsrcBuf, jpegBuf);
THROW_TJ();
}
for (i = 0; i < n; i++)
SAFE_RELEASE(jdstBufs[i], dstBufs[i]);
SAFE_RELEASE(jsrcBuf, jpegBuf);
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 (dstSizesi) (*env)->ReleaseIntArrayElements(env, jdstSizes, dstSizesi, 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);
}
SAFE_RELEASE(jsrcBuf, jpegBuf);
free(jdstBufs);
free(dstSizes);
free(t);
return jdstSizes;
}
/* TurboJPEG 1.2.x: TJDecompressor::destroy() */
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_destroy
(JNIEnv *env, jobject obj)
{
Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy(env, obj);
}
/* Private image I/O routines (used only by TJBench) */
JNIEXPORT jobject JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_loadImage
(JNIEnv *env, jobject obj, jint precision, jstring jfilename,
jintArray jwidth, jint align, jintArray jheight, jintArray jpixelFormat)
{
tjhandle handle = NULL;
void *dstBuf = NULL, *jdstPtr;
int width, *warr, height, *harr, pixelFormat, *pfarr, n;
const char *filename = NULL;
jboolean isCopy;
jobject jdstBuf = NULL;
GET_HANDLE();
if ((precision != 8 && precision != 12 && precision != 16) ||
jfilename == NULL || jwidth == NULL ||
(*env)->GetArrayLength(env, jwidth) < 1 || jheight == NULL ||
(*env)->GetArrayLength(env, jheight) < 1 || jpixelFormat == NULL ||
(*env)->GetArrayLength(env, jpixelFormat) < 1)
THROW_ARG("Invalid argument in loadImage()");
BAILIF0NOEC(warr = (*env)->GetPrimitiveArrayCritical(env, jwidth, 0));
width = warr[0];
(*env)->ReleasePrimitiveArrayCritical(env, jwidth, warr, 0);
BAILIF0NOEC(harr = (*env)->GetPrimitiveArrayCritical(env, jheight, 0));
height = harr[0];
(*env)->ReleasePrimitiveArrayCritical(env, jheight, harr, 0);
BAILIF0NOEC(pfarr = (*env)->GetPrimitiveArrayCritical(env, jpixelFormat, 0));
pixelFormat = pfarr[0];
(*env)->ReleasePrimitiveArrayCritical(env, jpixelFormat, pfarr, 0);
BAILIF0(filename = (*env)->GetStringUTFChars(env, jfilename, &isCopy));
if (precision == 8) {
if ((dstBuf = tj3LoadImage8(handle, filename, &width, align, &height,
&pixelFormat)) == NULL)
THROW_TJ();
} else if (precision == 12) {
if ((dstBuf = tj3LoadImage12(handle, filename, &width, align, &height,
&pixelFormat)) == NULL)
THROW_TJ();
} else {
if ((dstBuf = tj3LoadImage16(handle, filename, &width, align, &height,
&pixelFormat)) == NULL)
THROW_TJ();
}
(*env)->ReleaseStringUTFChars(env, jfilename, filename);
filename = NULL;
if ((unsigned long long)width * (unsigned long long)height *
(unsigned long long)tjPixelSize[pixelFormat] >
(unsigned long long)((unsigned int)-1))
THROW_ARG("Image is too large");
BAILIF0NOEC(warr = (*env)->GetPrimitiveArrayCritical(env, jwidth, 0));
warr[0] = width;
(*env)->ReleasePrimitiveArrayCritical(env, jwidth, warr, 0);
BAILIF0NOEC(harr = (*env)->GetPrimitiveArrayCritical(env, jheight, 0));
harr[0] = height;
(*env)->ReleasePrimitiveArrayCritical(env, jheight, harr, 0);
BAILIF0NOEC(pfarr = (*env)->GetPrimitiveArrayCritical(env, jpixelFormat, 0));
pfarr[0] = pixelFormat;
(*env)->ReleasePrimitiveArrayCritical(env, jpixelFormat, pfarr, 0);
n = width * height * tjPixelSize[pixelFormat];
if (precision == 8)
jdstBuf = (*env)->NewByteArray(env, n);
else
jdstBuf = (*env)->NewShortArray(env, n);
BAILIF0NOEC(jdstPtr = (*env)->GetPrimitiveArrayCritical(env, jdstBuf, 0));
memcpy(jdstPtr, dstBuf, n * (precision > 8 ? 2 : 1));
(*env)->ReleasePrimitiveArrayCritical(env, jdstBuf, jdstPtr, 0);
bailout:
if (filename) (*env)->ReleaseStringUTFChars(env, jfilename, filename);
tj3Free(dstBuf);
return jdstBuf;
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_saveImage
(JNIEnv *env, jobject obj, jint precision, jstring jfilename,
jobject jsrcBuf, jint width, jint pitch, jint height, jint pixelFormat)
{
tjhandle handle = NULL;
void *srcBuf = NULL, *jsrcPtr;
const char *filename = NULL;
int n;
jboolean isCopy;
GET_HANDLE();
if ((precision != 8 && precision != 12 && precision != 16) ||
jfilename == NULL || jsrcBuf == NULL || width < 1 || height < 1 ||
pixelFormat < 0 || pixelFormat >= TJ_NUMPF)
THROW_ARG("Invalid argument in saveImage()");
if ((unsigned long long)width * (unsigned long long)height *
(unsigned long long)tjPixelSize[pixelFormat] >
(unsigned long long)((unsigned int)-1))
THROW_ARG("Image is too large");
n = width * height * tjPixelSize[pixelFormat];
if ((*env)->GetArrayLength(env, jsrcBuf) < n)
THROW_ARG("Source buffer is not large enough");
if ((srcBuf = malloc(n * (precision > 8 ? 2 : 1))) == NULL)
THROW_MEM();
BAILIF0NOEC(jsrcPtr = (*env)->GetPrimitiveArrayCritical(env, jsrcBuf, 0));
memcpy(srcBuf, jsrcPtr, n * (precision > 8 ? 2 : 1));
(*env)->ReleasePrimitiveArrayCritical(env, jsrcBuf, jsrcPtr, 0);
BAILIF0(filename = (*env)->GetStringUTFChars(env, jfilename, &isCopy));
if (precision == 8) {
if (tj3SaveImage8(handle, filename, srcBuf, width, pitch, height,
pixelFormat) == -1)
THROW_TJ();
} else if (precision == 12) {
if (tj3SaveImage12(handle, filename, srcBuf, width, pitch, height,
pixelFormat) == -1)
THROW_TJ();
} else {
if (tj3SaveImage16(handle, filename, srcBuf, width, pitch, height,
pixelFormat) == -1)
THROW_TJ();
}
bailout:
if (filename) (*env)->ReleaseStringUTFChars(env, jfilename, filename);
free(srcBuf);
}
Reference in New Issue View Git Blame Copy Permalink