#include "utils/ImageUtils.h"

#include <QImage>
#include <QGLWidget>
#include <osgDB/ReadFile>

#include "common/SpdLogger.h"


osg::Image* ImageUtils::readImage(const std::string& filePath) {
    QImage image(filePath.c_str());
    if (image.isNull())
        return NULL;

    image = QGLWidget::convertToGLFormat(image);
    int nByteCount = image.byteCount();
    unsigned char* pData = new unsigned char[nByteCount];
    for (int idx = 0; idx < nByteCount; ++idx) {
        pData[idx] = image.bits()[idx];
    }

    osg::Image* pMarkerImage = new osg::Image();
    pMarkerImage->setImage(image.width(), image.height(), 1, 4, GL_RGBA, GL_UNSIGNED_BYTE, pData, osg::Image::USE_NEW_DELETE, 1);

    return pMarkerImage;
}