在地下的pygame blit中导致地下被锁定的错误 [英] In pygame blit of subsurface cause error that the subsurface is locked

问题描述

这是重现该内容的最小脚本

Here is a minimal script to reproduce that

#!/usr/bin/env python
import pygame

screen = pygame.display.set_mode((640, 480))
screen.fill((255, 255, 255))
screen_half = screen.subsurface((0,0, 640/2.0, 480))

print screen.get_locks()
print screen_half.get_locks()
screen_half.blit(screen_half, (0, 0))

输出是

()
()
Traceback (most recent call last):
  File "./blit_test.py", line 10, in <module>
    screen_half.blit(screen_half, (0, 0))
pygame.error: Surfaces must not be locked during blit

如您所见，带有 screen 和 screen_half 锁的元组是空的.如果我使用 screen 而不是 screen_half 没有错误.

As you can see tuples with locks for screen and screen_half are empty. There is no error if I use screen instead of screen_half.

推荐答案

我遇到了类似的问题，pmoreli 是对的.我只是复制了次表面创建新表面，然后将其显示为 blit:

I had similar problem and pmoreli is right. I just copied subsurface creating new surface and than blit it on display:

screen_half = screen_half.copy()
screen_half.blit(screen_half, (0, 0))

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