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enabling of VideoCapture(String) [fixing issue #3207]

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- enable auto-wrap of VideoCapture;
- minor refactoring of generated code templates.
This commit is contained in:
Andrey Pavlenko
2013-08-13 12:04:36 +04:00
parent 8d39350b4d
commit d4e098f401
3 changed files with 87 additions and 692 deletions
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104
modules/java/generator/gen_java.py
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@@ -12,7 +12,7 @@ class_ignore_list = (
#core
"FileNode", "FileStorage", "KDTree",
#highgui
"VideoWriter", "VideoCapture",
"VideoWriter",
)
const_ignore_list = (
@@ -512,6 +512,54 @@ JNIEXPORT jdoubleArray JNICALL Java_org_opencv_core_Core_n_1getTextSize
"resizeWindow" : {'j_code' : '', 'jn_code' : '', 'cpp_code' : '' },
}, # Highgui
'VideoCapture' :
{
"getSupportedPreviewSizes" :
{
'j_code' :
"""
public java.util.List<org.opencv.core.Size> getSupportedPreviewSizes()
{
String[] sizes_str = getSupportedPreviewSizes_0(nativeObj).split(",");
java.util.List<org.opencv.core.Size> sizes = new java.util.LinkedList<org.opencv.core.Size>();
for (String str : sizes_str) {
String[] wh = str.split("x");
sizes.add(new org.opencv.core.Size(Double.parseDouble(wh[0]), Double.parseDouble(wh[1])));
}
return sizes;
}
""",
'jn_code' :
"""\n private static native String getSupportedPreviewSizes_0(long nativeObj);\n""",
'cpp_code' :
"""
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_getSupportedPreviewSizes_10
(JNIEnv *env, jclass, jlong self);
JNIEXPORT jstring JNICALL Java_org_opencv_highgui_VideoCapture_getSupportedPreviewSizes_10
(JNIEnv *env, jclass, jlong self)
{
static const char method_name[] = "highgui::VideoCapture_getSupportedPreviewSizes_10()";
try {
LOGD(%s, method_name);
VideoCapture* me = (VideoCapture*) self; //TODO: check for NULL
union {double prop; const char* name;} u;
u.prop = me->get(CV_CAP_PROP_SUPPORTED_PREVIEW_SIZES_STRING);
return env->NewStringUTF(u.name);
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
throwJavaException(env, 0, method_name);
}
return env->NewStringUTF("");
}
""",
}, # getSupportedPreviewSizes
}, # VideoCapture
}
# { class : { func : {arg_name : ctype} } }
@@ -878,21 +926,48 @@ public class %(jc)s {
self.add_func(decl)
self.cpp_code = StringIO()
self.cpp_code.write("""
self.cpp_code.write(Template("""
//
// This file is auto-generated, please don't edit!
//
#define LOG_TAG "org.opencv.%(m)s"
#define LOG_TAG "org.opencv.$m"
#include "common.h"
#include "opencv2/%(m)s/%(m)s.hpp"
#include "opencv2/opencv_modules.hpp"
#ifdef HAVE_OPENCV_$M
#include "opencv2/$m/$m.hpp"
using namespace cv;
/// throw java exception
static void throwJavaException(JNIEnv *env, const std::exception *e, const char *method) {
std::string what = "unknown exception";
jclass je = 0;
if(e) {
std::string exception_type = "std::exception";
if(dynamic_cast<const cv::Exception*>(e)) {
exception_type = "cv::Exception";
je = env->FindClass("org/opencv/core/CvException");
}
what = exception_type + ": " + e->what();
}
if(!je) je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, what.c_str());
LOGE("%s caught %s", method, what.c_str());
(void)method; // avoid "unused" warning
}
extern "C" {
""" % {'m' : module} )
""").substitute( m = module, M = module.upper() ) )
# generate code for the classes
for name in self.classes.keys():
@@ -907,7 +982,7 @@ extern "C" {
java_code = Template(java_code).substitute(imports = imports)
self.save("%s/%s+%s.java" % (output_path, module, self.classes[name].jname), java_code)
self.cpp_code.write( '\n} // extern "C"\n' )
self.cpp_code.write( '\n} // extern "C"\n\n#endif // HAVE_OPENCV_%s\n' % module.upper() )
self.save(output_path+"/"+module+".cpp", self.cpp_code.getvalue())
# report
@@ -1266,23 +1341,18 @@ JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_${clazz}_$fname ($argst);
JNIEXPORT $rtype JNICALL Java_org_opencv_${module}_${clazz}_$fname
($args)
{
static const char method_name[] = "$module::$fname()";
try {
LOGD("$module::$fname()");
LOGD("%s", method_name);
$prologue
$retval$cvname( $cvargs );
$epilogue$ret
} catch(cv::Exception e) {
LOGD("$module::$fname() catched cv::Exception: %s", e.what());
jclass je = env->FindClass("org/opencv/core/CvException");
if(!je) je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, e.what());
$default
} catch(const std::exception &e) {
throwJavaException(env, &e, method_name);
} catch (...) {
LOGD("$module::$fname() catched unknown exception (...)");
jclass je = env->FindClass("java/lang/Exception");
env->ThrowNew(je, "Unknown exception in JNI code {$module::$fname()}");
$default
throwJavaException(env, 0, method_name);
}
$default
}