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Extend the TurboJPEG Java API to support generating YUV images with arbitrary padding and to support image scaling when decompressing to YUV

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git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@975 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC
2013-04-28 01:32:52 +00:00
parent 2d25f449a5
commit 084c4c039a
31 changed files with 513 additions and 152 deletions
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87
turbojpeg-jni.c
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@@ -67,16 +67,23 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSize
return retval;
}
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV
(JNIEnv *env, jclass cls, jint width, jint height, jint subsamp)
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)tjBufSizeYUV(width, height, subsamp);
jint retval=(jint)tjBufSizeYUV2(width, pad, height, subsamp);
if(retval==-1) _throw(tjGetErrorStr());
bailout:
return retval;
}
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);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_init
(JNIEnv *env, jobject obj)
{
@@ -207,12 +214,12 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
flags);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch,
jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
jint height, jint pf, jbyteArray dst, jint pad, jint subsamp, jint flags)
{
tjhandle handle=0;
jsize arraySize=0;
jsize arraySize=0, yuvSize;
unsigned char *srcBuf=NULL, *dstBuf=NULL;
gethandle();
@@ -226,15 +233,17 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___
arraySize=(pitch==0)? width*tjPixelSize[pf]*height:pitch*height;
if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough");
if((*env)->GetArrayLength(env, dst)
<(jsize)tjBufSizeYUV(width, height, subsamp))
yuvSize=(jsize)tjBufSizeYUV2(width, pad, height, subsamp);
if(yuvSize==(unsigned long)-1)
_throw(tjGetErrorStr());
if((*env)->GetArrayLength(env, dst)<yuvSize)
_throw("Destination buffer is not large enough");
bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjEncodeYUV2(handle, srcBuf, width, pitch, height, pf, dstBuf, subsamp,
flags)==-1)
if(tjEncodeYUV3(handle, srcBuf, width, pitch, height, pf, dstBuf, pad,
subsamp, flags)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
@@ -248,12 +257,20 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___
return;
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII
(JNIEnv *env, jobject obj, jintArray src, jint width, jint stride,
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)
{
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BIII(
env, obj, src, width, pitch, height, pf, dst, 4, subsamp, flags);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BIII
(JNIEnv *env, jobject obj, jintArray src, jint width, jint stride,
jint height, jint pf, jbyteArray dst, jint pad, jint subsamp, jint flags)
{
tjhandle handle=0;
jsize arraySize=0;
jsize arraySize=0, yuvSize;
unsigned char *srcBuf=NULL, *dstBuf=NULL;
gethandle();
@@ -269,15 +286,17 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___
arraySize=(stride==0)? width*height:stride*height;
if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough");
if((*env)->GetArrayLength(env, dst)
<(jsize)tjBufSizeYUV(width, height, subsamp))
yuvSize=(jsize)tjBufSizeYUV2(width, pad, height, subsamp);
if(yuvSize==(unsigned long)-1)
_throw(tjGetErrorStr());
if((*env)->GetArrayLength(env, dst)<yuvSize)
_throw("Destination buffer is not large enough");
bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjEncodeYUV2(handle, srcBuf, width, stride*sizeof(jint), height, pf,
dstBuf, subsamp, flags)==-1)
if(tjEncodeYUV3(handle, srcBuf, width, stride*sizeof(jint), height, pf,
dstBuf, pad, subsamp, flags)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
@@ -291,6 +310,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___
return;
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII
(JNIEnv *env, jobject obj, jintArray src, jint width, jint pitch,
jint height, jint pf, jbyteArray dst, jint subsamp, jint flags)
{
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BIII(
env, obj, src, width, pitch, height, pf, dst, 4, subsamp, flags);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy
(JNIEnv *env, jobject obj)
{
@@ -484,13 +511,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV___3BI_3BIIII
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
jint flags)
jint desiredWidth, jint pad, jint desiredHeight, jint flags)
{
tjhandle handle=0;
unsigned char *jpegBuf=NULL, *dstBuf=NULL;
int jpegSubsamp=-1, jpegWidth=0, jpegHeight=0;
jsize yuvSize;
gethandle();
@@ -502,15 +530,18 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
jpegWidth=(int)(*env)->GetIntField(env, obj, _fid);
bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegHeight", "I"));
jpegHeight=(int)(*env)->GetIntField(env, obj, _fid);
if((*env)->GetArrayLength(env, dst)
<(jsize)tjBufSizeYUV(jpegWidth, jpegHeight, jpegSubsamp))
_throw("Destination buffer is not large enough");
yuvSize=(jsize)tjBufSizeYUV2(desiredWidth==0? jpegWidth:desiredWidth,
pad, desiredHeight==0? jpegHeight:desiredHeight, jpegSubsamp);
if(yuvSize==(unsigned long)-1)
_throw(tjGetErrorStr());
if((*env)->GetArrayLength(env, dst)<yuvSize)
_throw("Destination buffer is not large enough");
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(dstBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjDecompressToYUV(handle, jpegBuf, (unsigned long)jpegSize, dstBuf,
flags)==-1)
if(tjDecompressToYUV2(handle, jpegBuf, (unsigned long)jpegSize, dstBuf,
desiredWidth, pad, desiredHeight, flags)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, dstBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
@@ -524,6 +555,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
return;
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV___3BI_3BI
(JNIEnv *env, jobject obj, jbyteArray src, jint jpegSize, jbyteArray dst,
jint flags)
{
Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompressToYUV___3BI_3BIIII(
env, obj, src, jpegSize, dst, 0, 4, 0, flags);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJTransformer_init
(JNIEnv *env, jobject obj)
{