If I remember correctly, there's a external call to fc-list that is very
slow. At one time, I intended to improve this situation by removing the
fc-list dependency on Mac and Linux and instead collecting only the needed
font data by using freetype and/or Mike C. Fletcher's TTFQuery, but I got
too busy.
Jason
On Sun, Apr 4, 2021, 4:36 PM Irv Kalb <i...@furrypants.com> wrote:
> [I apologize if this is a duplicate, but I haven't seen this message show
> up on the list.]
>
>
> I have tracked down a huge slowdown on loading fonts with
> pygame.font.SysFont
>
> Mac OSX 11.2.3
> Python 3.9.1
> Pygame 2.0.1
>
> If I load a font like the system font using None with a call to
> pygame.font.font, it happens almost immediately.
>
> But if I load a font by name using pygame.font.SysFont, it's taking over 7
> seconds on my Mac to load. It doesn't seem to matter which font I try to
> use.
>
> Sample program:
>
> import sys
> import pygame
> import time
>
> pygame.init()
> screen = pygame.display.set_mode((400, 400))
> clock = pygame.time.Clock()
>
> now = time.time()
> font1 = pygame.font.Font(None, 24)
> print('Loading System font took', time.time() - now)
>
> now = time.time()
> font2 = pygame.font.SysFont('Arial', 24)
> print('Loading Arial font took', time.time() - now)
>
> while True:
> for event in pygame.event.get():
> if event.type == pygame.QUIT:
> pygame.quit()
> sys.exit()
>
> screen.fill((255, 255, 255))
>
> pygame.display.flip()
> clock.tick(30)
>
>
> Output:
> pygame 2.0.1 (SDL 2.0.14, Python 3.9.1)
> Hello from the pygame community. https://www.pygame.org/contribute.html
> Loading System font took 0.0006210803985595703
> Loading Arial font took 7.058471202850342
>
>
> (I don't have a setup to test this on Windows.)
>
> This seems like a rather excessive amount of time as it slows down that
> start up of many of my programs.
>
> It seems to be related to how long it takes to get the list of fonts. If
> I add this before the call to SysFont:
>
> now = time.time()
> fontList = pygame.font.get_fonts()
> print('Getting fonts took', time.time() - now)
>
> I get:
>
> Loading System font took 0.0006549358367919922
> Getting fonts took 7.013390064239502
> Loading Arial font took 0.0004830360412597656
>
>
> Anyone else seeing this?
>
> Can someone tell me how to send in a bug report for this?
>
> Thanks,
>
> Irv
>
>
>
>
>
