add SDL2 samples

sdl/02-sdl2-video/02-sdl2-video.cpp

@@ -0,0 +1,51 @@
+// 02-sdl2-video.cpp : SDL2 example - initialize video and display image
+//
+
+#include "stdafx.h"
+#include "SDL.h"
+
+int _tmain(int argc, _TCHAR* argv[]) {	
+	if (SDL_Init(SDL_INIT_EVERYTHING) == -1){
+		printf("Error initializing SDL:  %s\n", SDL_GetError());
+		return 1;
+	}
+
+	SDL_Window *win = nullptr;
+	win = SDL_CreateWindow("Hello World!", 100, 100, 640, 480, SDL_WINDOW_SHOWN);
+	if (win == nullptr){
+		printf("%i\n", SDL_GetError());
+		return 1;
+	}
+
+	SDL_Renderer *ren = nullptr;
+	ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+	if (ren == nullptr){
+		printf("%i\n", SDL_GetError());
+		return 1;
+	}
+
+	SDL_Surface *bmp = nullptr;
+	bmp = SDL_LoadBMP("smajlik.bmp");
+	if (bmp == nullptr){
+		printf("%i\n", SDL_GetError());
+		return 1;
+	}
+	
+	SDL_Texture *tex = nullptr;
+	tex = SDL_CreateTextureFromSurface(ren, bmp);
+	SDL_FreeSurface(bmp);
+
+	SDL_RenderClear(ren);
+	SDL_RenderCopy(ren, tex, NULL, NULL);
+	SDL_RenderPresent(ren);
+
+	SDL_Delay(2000);
+
+	SDL_DestroyTexture(tex);
+	SDL_DestroyRenderer(ren);
+	SDL_DestroyWindow(win);
+
+	SDL_Quit();
+	return 0;
+}
+