SDL2: gfxdraw.aa* functions segfault with 8-bit surfaces (849)

[GalacticEmperor1]

Issue №849 opened by dlon at 2019-02-24 22:01:42

An 8-bit surface without a palette (masks (0xe0, 0x1c, 0x3, 0x0)) can cause a segfault for aapolygon, aacircle, aatrigon, and aaellipse.

from pygame import Surface, Color, init
from pygame.gfxdraw import aacircle

init()

s = Surface(size=(512, 512), flags=0, depth=8, masks=(0xE0, 0x1C, 0x3, 0x0))

aacircle(
    s,
    256,
    256,
    64,
    Color("red"),
)

System: pygame 1.9.5 / SDL2 / Python 3.7.2 (64-bit). Doesn't happen with SDL1.2.

Related Docs: https://www.pygame.org/docs/ref/gfxdraw.html

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Comments

[MyreMylar]

Updated the test program. This segfault still occurs in 2.4.0.dev1 (main at time of writing)