Linux 下SDL2 image安装及使用

1. 安装SDL image 2.0

sudo apt-get install libsdl2-image-dev

如果没有安装过SDL2 ，应该会自动安装，也可以自己安装

sudo apt-get install libsdl2-dev

2. 测试,创建test,c，键入如下代码

#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>

int main()
{
SDL_Window* window =0;
SDL_Renderer* render=0;
SDL_Texture *texture=0;
SDL_Rect src,dst;
int width,height;
SDL_Init(SDL_INIT_EVERYTHING);
window=SDL_CreateWindow("hello",SDL_WINDOWPOS_CENTERED,SDL_WINDOWPOS_CENTERED,640,480,SDL_WINDOW_SHOWN);
render=SDL_CreateRenderer(window,-1,0);
texture=IMG_LoadTexture(render,"tux.jpg");
SDL_QueryTexture(texture,NULL,NULL,&width,&height);
src.x=src.y=0;
src.w=width;
src.h=height;
dst.x=30;
dst.y=20;
dst.w=width/2;
dst.h=height/2;
SDL_SetRenderDrawColor(render,0,0,0,255);
SDL_RenderClear(render);
SDL_RenderCopy(render,texture,&src,&dst);
SDL_RenderPresent(render);
SDL_Delay(3000);
SDL_DestroyWindow(window);
SDL_DestroyRenderer(render);
SDL_Quit();
return 0;
}

4.编译

gcc test.c -lSDL2 -lSDL2_image

编译成功，在当前目录下生成a.out可执行文件

5,测试

弄张图片命名为tux.jpg 放到该目录下

执行 ./a.out