sdl2 example for use with https://github.com/riicchhaarrd/cidscropt

sdl2.c

#pragma comment(lib, "msvcrt.dll")
#pragma comment(lib, "SDL2.dll")
#pragma comment(lib, "SDL2_image.dll")
#pragma comment(lib, "opengl32.dll")

typedef struct
{
	int type;
	char rest[54];
} SDL_Event;

typedef struct
{
	int flags;
	void *format;
} SDL_Surface;
typedef struct
{
	int x;
	int y;
	int w;
	int h;
} SDL_Rect;

logic(pos)
{
	while(level.running == true)
	{
		pos->x = pos->x + 1;
		//printf("pos x = %\n", pos->x);
		wait 0.05;
	}
}

update(dest)
{
	while(level.running == true)
	{
		ev = new SDL_Event;
		ev.type=0;
		while(SDL_PollEvent(ev) != 0)
		{
			//printf("ev types = %\n",ev.type);
			if(ev.type == 0x100) //sdl_quit
			{
				level.running=false;
			}
		}
		
		SDL_RenderClear(level.renderer);
		for(i=0;i<level.textures.size;i++)
		{
			at = new SDL_Rect;
			memcpy(at,dest,dest.size);
			at.y = i * 100;
			SDL_RenderCopy(level.renderer,level.textures[i],0,at);
		}
		SDL_RenderPresent(level.renderer);
		wait (1/20);
	}
	
	SDL_DestroyWindow(level.wnd);
	SDL_Quit();
}

in_array(a, v)
{
	for(i=0;i<a.size;i++)
	{
		if(a[i]==v)
			return true;
	}
	return false;
}

main() {
	files = listdir(".");
	
	//valid = [".jpg", ".png", ".bmp", ".gif", ".jpeg"];
	valid = [".bmp"];
	
	imgs = [];
	
	for(i=0;i<files.size;i++)
	{
		for(j = 0; j < valid.size; j++)
		{
			if(strpos(files[i],valid[j]) != -1)
			{
				printf("%\n", files[i]);
				imgs[imgs.size] = files[i];
			}
		}
	}
	i = SDL_Init(0x20); //0x20 means init video
	width = 512;
	height = 512;
	
	level.wnd = SDL_CreateWindow("test", 100,100, width, height, 32 | 4); //2 = gl, 32 = resizable, 4 = shown
	
	level.renderer = SDL_CreateRenderer(level.wnd,-1,0);
	
	surf = SDL_GetWindowSurface(level.wnd);
	
	copy = new SDL_Surface;
	
	memcpy(copy, surf, copy.size);
	
	//surface = IMG_Load("chiken.jpg");
	textures = [];
	for(i=0;i<imgs.size;i++)
	{
		surface = IMG_Load(imgs[i]);
		printf("surface = %, %\n", surface, imgs[i]);
		textures[textures.size] = SDL_CreateTextureFromSurface(level.renderer, surface); 
		SDL_FreeSurface(surface);
	}
	level.textures=textures;
	red=255;
	green=255;
	blue=255;
	//SDL_FillRect(surf, 0, SDL_MapRGB( copy.format, 255, 255, 255 ));
	
	dest = new SDL_Rect;
	dest.x=100;
	dest.y=100;
	dest.w=100;
	dest.h=100;
	
	thread logic(dest);
	
	//SDL_UpdateWindowSurface(level.wnd);
	level.running = true;
	thread update(dest);
}