#!/usr/bin/env python
"""How to use pygame with no windowing system, like on headless servers.
Thumbnail generation with scaling is an example of what you can do with pygame.
NOTE: the pygame scale function uses mmx/sse if available, and can be run
in multiple threads.
"""
useage = """-scale inputimage outputimage new_width new_height
eg. -scale in.png out.png 50 50
"""
import os, sys
# set SDL to use the dummy NULL video driver,
# so it doesn't need a windowing system.
os.environ["SDL_VIDEODRIVER"] = "dummy"
import pygame.transform
if 1:
#some platforms need to init the display for some parts of pygame.
import pygame.display
pygame.display.init()
screen = pygame.display.set_mode((1,1))
def scaleit(fin, fout, w, h):
i = pygame.image.load(fin)
if hasattr(pygame.transform, "smoothscale"):
scaled_image = pygame.transform.smoothscale(i, (w,h))
else:
scaled_image = pygame.transform.scale(i, (w,h))
pygame.image.save(scaled_image, fout)
def main(fin, fout, w, h):
"""smoothscale image file named fin as fout with new size (w,h)"""
scaleit(fin, fout, w, h)
if __name__ == "__main__":
if "-scale" in sys.argv:
fin, fout, w, h = sys.argv[2:]
w, h = map(int, [w,h])
main(fin, fout, w,h)
else:
print (useage)
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