osgDB.RegisterImageProcessorProxy 是 OpenSceneGraph 中的一个函数,它用于在运行时动态注册一个图像处理器,以实现不同格式的图片文件的加载和写入。
void RegisterImageProcessorProxy(ImageProcessor *processor)
processor
: 一个继承自 ImageProcessor 的图像处理器对象。无。
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgDB/ReaderWriter>
#include <iostream>
class MyImageReaderWriter : public osgDB::ReaderWriter {
public:
MyImageReaderWriter() {}
virtual const char* className() const { return "MyImageReaderWriter"; }
virtual bool acceptsExtension(const std::string& extension) const {
return osgDB::equalCaseInsensitive(extension, "myimg");
}
virtual ReadResult readImage(const std::string& fileName, const osgDB::Options* options = 0) const {
// implementation goes here
}
virtual WriteResult writeImage(const osg::Image& image, const std::string& fileName, const osgDB::Options* options = 0) const {
// implementation goes here
}
};
int main(int argc, char** argv) {
osgDB::Registry::instance()->addReaderWriter(new MyImageReaderWriter);
// Register image processor for MyImageReaderWriter format
osgDB::RegisterImageProcessorProxy(new MyImageReaderWriter);
osg::ref_ptr<osg::Image> image = osgDB::readImageFile("test.myimg");
if (image.valid()) {
std::cout << "Image loaded successfully." << std::endl;
} else {
std::cout << "Failed to load image." << std::endl;
}
return 0;
}
RegisterImageProcessorProxy
函数必须在调用 addReaderWriter
函数之后调用,否则可能会导致错误。