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GNU Guile-SDL 0.6.1 available

From: Thien-Thi Nguyen
Subject: GNU Guile-SDL 0.6.1 available
Date: Sun, 20 Feb 2022 19:53:58 -0500

release notes:

  Gearing up for a Trip Log series to port a small program from
  Guile-SDL to Guile-SDL2:

  Volunteers familiar w/ Guile-SDL2 welcome!

README excerpt:

  Guile-SDL is a set of modules that provide bindings for various
  Simple DirectMedia Layer ( libraries.

  Most of the SDL functions are wrapped, with the exception of a
  few functions that are too C-centric.  The SDL threads, audio
  and network functions are not included.  However, there are
  (optionally configured) bindings for SDL_mixer and SDL_ttf.

  Also included is SDL_gfx 2.0.26 (by Andreas Schiffler) source
  code (ZLIB license) and bindings for it.

  This is alpha code (pre 1.0 release), tested with various,
  but not all, versions of Guile and SDL.  It may have bugs,
  and the interfaces may change from version to version.

NEWS for 0.6.1 (2022-02-20):

  - changes to ‘(sdl misc-utils)’

    - new proc: ‘create-rgba-surface’

      This returns a new 32bpp surface of the specified width and
      height w/ the ‘src-alpha’ flag set.

    - new proc: ‘create-rgba-square’

      This returns a new 32bpp square surface of the specified edge
      length w/ the ‘src-alpha’ flag set.

    - ‘rotate-square’ fixed / extended

      Previously, this proc made reference to ‘roto-zoom-surface’ in
      the wrong module.  This undefined reference was never detected,
      showing how middlig to poor the test coverage was (and remains).
      Now, ‘roto-zoom-surface’ is properly imported from ‘(sdl gfx)’.

      Another oddity is that previously, the specified ANGLE argument
      was subtracted by 90 prior to passing it to ‘roto-zoom-surface’.
      This bizarre practice is no more.

      Re extension, ‘rotate-square’ now takes optional 3rd arg
      MKSQUARE which specifies a procedure to make a new square
      surface.  If omitted, it defaults to ‘create-rgba-square’.

      Additionally, if the rotated surface has flag ‘src-alpha’ set,
      the resizing blit uses ‘(sdl gfx) blit-rgba’ to do the job
      (otherwise ‘(sdl sdl) blit-surface’, as before).

  - bootstrap/maintenance tools



    as before:

     Guile-BAUX 20211208.0839.a5245e7
     GNU gnulib 2022-01-27 07:00:41
     GNU Libtool 2.4.6
     GNU Autoconf 2.71
     GNU Automake 1.16.5
     GNU Texinfo 6.8

tarballs and detached signatures:

source code:


Thien-Thi Nguyen -----------------------------------------------
 (defun responsep (query)               ; (2022) Software Libero
   (pcase (context query)               ;       = Dissenso Etico
     (`(technical ,ml) (correctp ml))
     ...))                              748E A0E8 1CB8 A748 9BFA
--------------------------------------- 6CE4 6703 2224 4C80 7502

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