Bitmap.cpp

#include <fstream>
#include "Bitmap.h"
#include "BitmapInfoHeader.h"
#include "BitmapFileHeader.h"

namespace cop
{
    Bitmap::Bitmap(int width, int height) : m_width(width), m_height(height), m_pPixel(new uint8_t[width*height * 3]{})
    {
    }

    void Bitmap::setPixel(int x, int y, uint8_t red, uint8_t green, uint8_t blue)
    {
    }

    bool Bitmap::write(std::string filename)
    {
        cop::BitmapFileHeader fileHeader;
        cop::BitmapInfoHeader infoHeader;

        //Size of file is size of Bitmap File Header + size of Bitmap Info Header + (3bytes each pixel will be taking)
        fileHeader.fileSize = sizeof(cop::BitmapFileHeader) + sizeof(cop::BitmapInfoHeader) + m_width + m_height * 3;
        //distance from the beginning of the file to where the data actually starts
        fileHeader.dataOffset = sizeof(cop::BitmapFileHeader) + sizeof(cop::BitmapInfoHeader);

        infoHeader.width = m_width;
        infoHeader.height = m_height;

        std::ofstream file;

        file.open(filename, std::ios::out | std::ios::binary);

        if (!file)
        {
            return false;
        }

        file.write((char *)&fileHeader, sizeof(fileHeader));
        file.write((char *)&infoHeader, sizeof(infoHeader));
        file.write((char *)&m_pPixel.get(), m_width*m_height*3); //Error -> Expression must have an lvalue or a function designator

        file.close();

        if (!file)
        {
            return false;
        }

        return true;
    }

    Bitmap::~Bitmap()
    {
    }
}