Resizing BMP Files

[VeNiX]

Much thanks for the help... I've managed to tweak my algorithm to get it right.

    
    else
    {
        int paddingIn =  (4 - (bi.biWidth * sizeof(RGBTRIPLE)) % 4) % 4;
        int paddingOut =  (4 - (bio.biWidth * sizeof(RGBTRIPLE)) % 4) % 4;
        
        for (int i = 0, biHeight = abs(bi.biHeight); i < biHeight; i++)
        {
            RGBTRIPLE* buffer = malloc(bi.biWidth * sizeof(RGBTRIPLE));
            RGBTRIPLE temp;
            
            for (int j = 0; j < bi.biWidth; j++)
            {
                fread(&temp, sizeof(RGBTRIPLE), 1, inptr);
                buffer[j] = temp;
            }
            
            for (int k = 0; k < factor; k++)
            {
                int iterator = 0;
                
                for (int l = 0; l < bi.biWidth; l++)
                {
                    for(int m = 0; m < factor; m++)
                    {
                        fwrite(&buffer[iterator], sizeof(RGBTRIPLE), 1, outptr);
                    }
                    
                    iterator += 1 % bi.biWidth;
                }
                
                for (int k = 0; k < paddingOut; k++)
                    fputc(0x00, outptr);
             }
                
            fseek(inptr, paddingIn, SEEK_CUR);    
            free(buffer);
        }