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get/put: more type-safety and code unification using templates

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This commit is contained in:
Jan Starzynski 2016-07-11 09:27:59 +02:00
parent b4112a5878
commit 479f933970
1 changed files with 77 additions and 173 deletions
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250
modules/java/generator/src/cpp/Mat.cpp
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@ -1815,6 +1815,29 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutD
} // extern "C"
namespace {
/// map java-array-types to assigned data
template<class T> struct JavaOpenCVTrait;
/// less typing for specialisations
#define JOCvT(t,s,c1,c2) \
template<> struct JavaOpenCVTrait<t##Array> { \
typedef t value_type; /* type of array element */ \
static const char get[]; /* name of getter */ \
static const char put[]; /* name of putter */ \
enum {cvtype_1 = c1, cvtype_2 = c2 }; /* allowed OpenCV-types */ \
}; \
const char JavaOpenCVTrait<t##Array>::get[] = "Mat::nGet" s "()"; \
const char JavaOpenCVTrait<t##Array>::put[] = "Mat::nPut" s "()"
JOCvT(jbyte, "B", CV_8U, CV_8S);
JOCvT(jshort, "S", CV_16U, CV_16S);
JOCvT(jint, "I", CV_32S, CV_32S);
JOCvT(jfloat, "F", CV_32F, CV_32F);
JOCvT(jdouble, "D", CV_64F, CV_64F);
#undef JOCvT
}
template<typename T> static int mat_put(cv::Mat* m, int row, int col, int count, char* buff)
{
if(! m) return 0;
@ -1845,6 +1868,28 @@ template<typename T> static int mat_put(cv::Mat* m, int row, int col, int count,
return res;
}
template<class ARRAY> static jint java_mat_put(JNIEnv* env, jlong self, jint row, jint col, jint count, ARRAY vals)
{
static const char *method_name = JavaOpenCVTrait<ARRAY>::put;
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != JavaOpenCVTrait<ARRAY>::cvtype_1 && me->depth() != JavaOpenCVTrait<ARRAY>::cvtype_2) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_put<typename JavaOpenCVTrait<ARRAY>::value_type>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, JNI_ABORT);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
}
extern "C" {
@ -1854,25 +1899,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutB
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutB
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jbyteArray vals)
{
static const char method_name[] = "Mat::nPutB()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_8U && me->depth() != CV_8S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_put<char>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_put(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutS
@ -1881,25 +1908,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutS
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutS
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jshortArray vals)
{
static const char method_name[] = "Mat::nPutS()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_16U && me->depth() != CV_16S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_put<short>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_put(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutI
@ -1908,25 +1917,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutI
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutI
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jintArray vals)
{
static const char method_name[] = "Mat::nPutI()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_32S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_put<int>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_put(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutF
@ -1935,31 +1926,12 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutF
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nPutF
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jfloatArray vals)
{
static const char method_name[] = "Mat::nPutF()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_32F) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_put<float>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_put(env, self, row, col, count, vals);
}
} // extern "C"
template<typename T> int mat_get(cv::Mat* m, int row, int col, int count, char* buff)
template<typename T> static int mat_get(cv::Mat* m, int row, int col, int count, char* buff)
{
if(! m) return 0;
if(! buff) return 0;
@ -1989,6 +1961,28 @@ template<typename T> int mat_get(cv::Mat* m, int row, int col, int count, char*
return res;
}
template<class ARRAY> static jint java_mat_get(JNIEnv* env, jlong self, jint row, jint col, jint count, ARRAY vals) {
static const char *method_name = JavaOpenCVTrait<ARRAY>::get;
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != JavaOpenCVTrait<ARRAY>::cvtype_1 && me->depth() != JavaOpenCVTrait<ARRAY>::cvtype_2) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<typename JavaOpenCVTrait<ARRAY>::value_type>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
}
extern "C" {
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetB
@ -1997,25 +1991,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetB
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetB
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jbyteArray vals)
{
static const char method_name[] = "Mat::nGetB()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_8U && me->depth() != CV_8S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<char>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_get(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetS
@ -2024,25 +2000,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetS
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetS
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jshortArray vals)
{
static const char method_name[] = "Mat::nGetS()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_16U && me->depth() != CV_16S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<short>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_get(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetI
@ -2051,25 +2009,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetI
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetI
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jintArray vals)
{
static const char method_name[] = "Mat::nGetI()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_32S) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<int>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_get(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetF
@ -2078,25 +2018,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetF
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetF
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jfloatArray vals)
{
static const char method_name[] = "Mat::nGetF()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_32F) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<float>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_get(env, self, row, col, count, vals);
}
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetD
@ -2105,25 +2027,7 @@ JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetD
JNIEXPORT jint JNICALL Java_org_opencv_core_Mat_nGetD
(JNIEnv* env, jclass, jlong self, jint row, jint col, jint count, jdoubleArray vals)
{
static const char method_name[] = "Mat::nGetD()";
try {
LOGD("%s", method_name);
cv::Mat* me = (cv::Mat*) self;
if(! self) return 0; // no native object behind
if(me->depth() != CV_64F) return 0; // incompatible type
if(me->rows<=row || me->cols<=col) return 0; // indexes out of range
char* values = (char*)env->GetPrimitiveArrayCritical(vals, 0);
int res = mat_get<double>(me, row, col, count, values);
env->ReleasePrimitiveArrayCritical(vals, values, 0);
return res;
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return 0;
return java_mat_get(env, self, row, col, count, vals);
}
JNIEXPORT jdoubleArray JNICALL Java_org_opencv_core_Mat_nGet