Function SaveImage

src/Util/Utils.cpp:289–330

lpBits stand for long pointer bits szPathName : Specifies the pathname -> the file path to save the image lpBits : Specifies the bitmap bits -> the buffer (content of the) image w : Specifies the image width h : Specifies the image height

    // w    : Specifies the image width
    // h    : Specifies the image height
    bool SaveImage(const char *szPathName, void *lpBits, uint16_t w, uint16_t h) {
        // Create a new file for writing
        FILE *pFile = fopen(szPathName, "wb"); // wb -> w: writable b: binary, open as writable and binary
        if (pFile == NULL) {
            return false;
        }

        CP_BITMAPINFOHEADER BMIH;                         // BMP header
        BMIH.biSize = sizeof(CP_BITMAPINFOHEADER);
        BMIH.biSizeImage = w * h * 4;
        // Create the bitmap for this OpenGL context
        BMIH.biSize = sizeof(CP_BITMAPINFOHEADER);
        BMIH.biWidth = w;
        BMIH.biHeight = h;
        BMIH.biPlanes = 1;
        BMIH.biBitCount = 32;
        BMIH.biCompression = CP_BI_RGB;


        CP_BITMAPFILEHEADER bmfh;                         // Other BMP header
        int nBitsOffset = sizeof(CP_BITMAPFILEHEADER) + BMIH.biSize;
        int32_t lImageSize = BMIH.biSizeImage;
        int32_t lFileSize = nBitsOffset + lImageSize;
        bmfh.bfType = 'B' + ('M' << 8);
        bmfh.bfOffBits = nBitsOffset;
        bmfh.bfSize = lFileSize;
        bmfh.bfReserved1 = bmfh.bfReserved2 = 0;

        // Write the bitmap file header               // Saving the first header to file
		size_t nWrittenFileHeaderSize = fwrite(&bmfh, 1, sizeof(CP_BITMAPFILEHEADER), pFile);

        // And then the bitmap info header            // Saving the second header to file
		size_t nWrittenInfoHeaderSize = fwrite(&BMIH, 1, sizeof(CP_BITMAPINFOHEADER), pFile);

        // Finally, write the image data itself
        //-- the data represents our drawing          // Saving the file content in lpBits to file
        size_t nWrittenDIBDataSize = fwrite(lpBits, 1, lImageSize, pFile);
        fclose(pFile); // closing the file.


        return true;
    }

    bool ExtractQFS(const std::string &qfs_input, const std::string &output_dir) {
        LOG(INFO) << "Extracting QFS file: " << qfs_input << " to " << output_dir;