from os import listdir

import sys

import time

from sdl2 import *

 

SDL_Init(SDL_INIT_VIDEO)

 

try:

    # create fullscreen display

    win = SDL_CreateWindow(b"Fast Blitting", 0,0,0,0, SDL_WINDOW_FULLSCREEN)

    screen = SDL_GetWindowSurface(win)

 

    # load all image files (BMP) in folder 'images' into surfaces in RAM

    images = []

    folder = 'fotos'

    files = listdir(folder)

    for f in files:

        img = SDL_LoadBMP((folder+'/'+f).encode())

        images.append(img)

 

    # blit 100 images

    cnt = len(images)

    t_start = time.time()

    for i in range(100):

 

        # blit next image into screen buffer

        SDL_BlitSurface(images[i % cnt], None, screen, None)

 

        # load screen buffer into actual screen

        SDL_UpdateWindowSurface(win)

 

    # show fps

    sec = time.time()-t_start

    print("fps: "+str(100/sec))

 

except:

    print(sys.exc_info())

 

if 'win' in locals():

    if 'images' in locals():

        for img in images: SDL_FreeSurface(img)

    SDL_DestroyWindow(win)

SDL_Quit()