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Add arguments support for async toBuffer

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This commit is contained in:
Sebastian Fastner 2013-10-03 16:01:33 +02:00
parent dd5961cfe2
commit b79c30069f
1 changed files with 30 additions and 2 deletions
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32
src/Matrix.cc
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@ -400,6 +400,8 @@ struct matrixToBuffer_baton_t {
Matrix *mm;
Persistent<Function> cb;
std::vector<uchar> res;
std::vector<int> params;
const char *ext;
uv_work_t request;
};
@ -413,6 +415,32 @@ Matrix::ToBufferAsync(const v8::Arguments& args){
REQ_FUN_ARG(0, cb);
matrixToBuffer_baton_t *baton = new matrixToBuffer_baton_t();
const char *ext = ".jpg";
// See if the options argument is passed
if ((args.Length() > 1) && (args[1]->IsObject())) {
// Get this options argument
v8::Handle<v8::Object> options = v8::Handle<v8::Object>::Cast(args[1]);
// If the extension (image format) is provided
if (options->Has(v8::String::New("ext"))) {
v8::String::Utf8Value str ( options->Get(v8::String::New("ext"))->ToString() );
std::string str2 = std::string(*str);
ext = (const char *) str2.c_str();
}
if (options->Has(v8::String::New("jpegQuality"))) {
int compression = options->Get(v8::String::New("jpegQuality"))->IntegerValue();
baton->params.push_back(CV_IMWRITE_JPEG_QUALITY);
baton->params.push_back(compression);
}
if (options->Has(v8::String::New("pngCompression"))) {
int compression = options->Get(v8::String::New("pngCompression"))->IntegerValue();
baton->params.push_back(CV_IMWRITE_PNG_COMPRESSION);
baton->params.push_back(compression);
}
}
baton->ext = ext;
baton->mm = self;
baton->cb = Persistent<Function>::New(cb);
baton->request.data = baton;
@ -426,9 +454,9 @@ void AsyncToBufferAsync(uv_work_t *req) {
matrixToBuffer_baton_t *baton = static_cast<matrixToBuffer_baton_t *>(req->data);
std::vector<uchar> vec(0);
std::vector<int> params(0);//CV_IMWRITE_JPEG_QUALITY 90
//std::vector<int> params(0);//CV_IMWRITE_JPEG_QUALITY 90
cv::imencode(".jpg", baton->mm->mat, vec, params);
cv::imencode(baton->ext, baton->mm->mat, vec, baton->params);
baton->res = vec;