Ubuntu14.04下C++开发SDL2应用

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1 下载与安装

到http://www.libsdl.org/下载http://www.libsdl.org/release/SDL2-2.0.3.zip源码

解压后

./configure

make

sudo make install

检查

头文件：/usr/local/include/SDL2

库位置：/usr/local/lib

2 建立测试程序：

#include <iostream>#include <SDL.h>#define WIDTH 640#define HEIGHT 480#define BPP 4#define DEPTH 32using namespace std;int main(int argc, char* argv[]){    SDL_Surface *screen;    SDL_Event event;    int keypress = 0;    int h = 0;    if (SDL_Init(SDL_INIT_EVERYTHING) == -1 ) {    cout << "error: " << SDL_GetError() << endl;    return 1;    }        SDL_Window* window = SDL_CreateWindow("hello", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480, SDL_WINDOW_SHOWN);    if (window == NULL){        cout << "Error: " << SDL_GetError() << endl;        return 1;    }SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);    if (renderer == NULL){        cout << "Error: " << SDL_GetError() << endl;        return 1;    }SDL_Surface* surface = SDL_LoadBMP("bk.bmp");SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);SDL_FreeSurface(surface);SDL_RenderClear(renderer);                  //清除屏幕SDL_RenderCopy(renderer, texture, 0, 0);    //把texture画到renderer上SDL_RenderPresent(renderer);    while(!keypress)    {        //DrawScreen(screen, h++);        while(SDL_PollEvent(&event))        {            switch (event.type)            {                case SDL_QUIT:                    keypress = 1;                    break;                case SDL_KEYDOWN:                    keypress = 1;                    break;            }        }    }    SDL_Quit();    return 0;}

3 编写编译命令build文件，内容如下：

g++ sdl_app1.cpp -I/usr/local/include/SDL2 -L/usr/local/lib -lSDL2 -lpthread

设置该文件的执行权限：

chmod +x build

运行编译命令：

./build

产生执行文件a.out

4 运行程序

./a.out

若出现找不到.so.0...，即找不到动态链接库的情况

运行命令：

sudo vim /etc/ld.so.conf #修改系统共享库搜索路径

在第一行增加

include /usr/local/lib

再运行命令：

sudo ldconfig

运行./a.out

结果运行正常

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