C: Linux C 编程 - SDL多媒体

写道

SDL
https://www.iteye.com/blog/lobin-2324937

 

 

• C: Linux C 编程 - SDL图像处理 https://www.iteye.com/blog/lobin-2516506

• C: Linux C 编程 - SDL音频处理 https://www.iteye.com/blog/lobin-2516507

• C: Linux C 编程 - SDL+mpg123音频处理 https://www.iteye.com/blog/lobin-2437638

• C: Linux C 编程 - SDL视频处理 https://www.iteye.com/blog/lobin-2437866

图形界面

 

创建窗口

#include<stdio.h>
#include<SDL_video.h>
#include<SDL_events.h>

int main(int argc, char **argv)
{
  SDL_Window *pWin;

  SDL_Event e;
  int exit = 0;
  pWin = SDL_CreateWindow("SDL", 100, 100, 500, 500, SDL_WINDOW_RESIZABLE); // SDL_WINDOW_FULLSCREEN, SDL_WINDOW_RESIZABLE
  if (pWin == NULL)
  {
    fprintf(stderr, "create window err.\n");
    return 1;
  }

  while (! exit)
  {
  
    while (SDL_PollEvent(&e))
    {
      if (e.type == SDL_QUIT)
      {
        exit = 1;
      }
    }
  }

  SDL_DestroyWindow(pWin);
  SDL_Quit();
  return 0;
}

显示图片

#include<stdio.h>
#include<SDL_video.h>
#include<SDL_render.h>
#include<SDL_surface.h>
#include<SDL_events.h>

int main(int argc, char **argv)
{
  SDL_Window *pWin;
  SDL_Renderer *renderer;
  SDL_Surface *bmp;
  SDL_Texture *texture;

  SDL_Event e;
  int exit = 0;
  pWin = SDL_CreateWindow("SDL", 100, 100, 500, 500, SDL_WINDOW_RESIZABLE); // SDL_WINDOW_FULLSCREEN, SDL_WINDOW_RESIZABLE
  if (pWin == NULL)
  {
    fprintf(stderr, "create window err.\n");
    return 1;
  }
  renderer = SDL_CreateRenderer(pWin, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
  if (renderer == NULL) 
  {
    fprintf(stderr, "create renderer err: %s\n", SDL_GetError());
    return 1;
  }

  bmp = SDL_LoadBMP("huacao.bmp");
  if (bmp == NULL) 
  {
    fprintf(stderr, "load bmp err: %s\n", SDL_GetError());
    return 1;
  }

  texture = SDL_CreateTextureFromSurface(renderer, bmp);
  if (texture == NULL) 
  {
    fprintf(stderr, "create texture err: %s\n", SDL_GetError());
    return 1;
  }

  SDL_FreeSurface(bmp);

  SDL_RenderClear(renderer);

  SDL_RenderCopy(renderer, texture, NULL, NULL);

  SDL_RenderPresent(renderer);

  while (! exit)
  {
  
    while (SDL_PollEvent(&e))
    {
      if (e.type == SDL_QUIT)
      {
        exit = 1;
        
      }
      else if (e.type == SDL_WINDOWEVENT)
      {
        if (e.window.event == SDL_WINDOWEVENT_RESIZED)
        {
         
        }
        else if (e.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
        {
        }
      }
    }
  }

  SDL_DestroyTexture(texture);
  SDL_DestroyRenderer(renderer);

  SDL_DestroyWindow(pWin);
  SDL_Quit();
  return 0;
}