//
// Image.cpp
// libscgui
//
// Created by Bob Polis at 2020-10-23
// Copyright (c) 2020 SwiftCoder. All rights reserved.
//

#include "Image.hpp"
#include <SDL2/SDL_image.h>
#include <stdexcept>

using namespace sc::gui;

Image::Image(int w, int h) {
    Uint32 rmask, gmask, bmask, amask;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    rmask = 0xff000000;
    gmask = 0x00ff0000;
    bmask = 0x0000ff00;
    amask = 0x000000ff;
#else
    rmask = 0x000000ff;
    gmask = 0x0000ff00;
    bmask = 0x00ff0000;
    amask = 0xff000000;
#endif
    SDL_Surface* s {SDL_CreateRGBSurface(0, w, h, 32, rmask, gmask, bmask, amask)};
    _s.reset(s);
}

Image::Image(const std::string& path) {
    // load image from file into surface
    SDL_Surface* loaded = IMG_Load(path.c_str());
    if (!loaded) throw std::runtime_error(IMG_GetError());
    _s.reset(loaded);
}

Image::Image(SDL_Surface* surface) {
    _s.reset(surface);
}