From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "Artyom V. Poptsov" Newsgroups: gmane.lisp.guile.user Subject: [ANN] Guile-PNG 0.3.0 released Date: Sun, 18 Dec 2022 20:58:26 +0300 Message-ID: <875ye8vbjx.fsf@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="11418"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) To: Guile Users' Mailing List Original-X-From: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Sun Dec 18 18:59:07 2022 Return-path: Envelope-to: guile-user@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1p6xwJ-0002l9-9D for guile-user@m.gmane-mx.org; Sun, 18 Dec 2022 18:59:07 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p6xvl-00024O-Vc; Sun, 18 Dec 2022 12:58:33 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1p6xvk-00023v-HX for guile-user@gnu.org; Sun, 18 Dec 2022 12:58:32 -0500 Original-Received: from mail-lf1-x135.google.com ([2a00:1450:4864:20::135]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p6xvi-0001eo-HB for guile-user@gnu.org; Sun, 18 Dec 2022 12:58:32 -0500 Original-Received: by mail-lf1-x135.google.com with SMTP id y25so10675769lfa.9 for ; Sun, 18 Dec 2022 09:58:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:user-agent:message-id:date:subject:to:from:from:to:cc :subject:date:message-id:reply-to; bh=i92PXiKmE8RSXTkrhCPRqa70Mq3i3AZS2KijlCov9Ms=; b=lX2LP25nWYNFsP0pG1Wsbw1eDSEaRwdIgT31qjMOv0b6WvUfZCvi5LnxHpiUQRPydN uQUldbrJGa5wbIlFqHSbGnpo5XsahACP1IdOxH/etN6rIPYA62hUy4d8yKizzFzO5utv hQ6cCgTZFhtZTstPUWVS3LhUNvSr4vVfdSpycZT823pYLbDiMg6/CDW0V5LKXAs8n6FD FxehIHchXmO9xjPrg5nm6Nxy1f4+Fw5N6vU3oBxOb+NIjIHwLzg6UQVzxgI2VA1Dd+39 FmSZTHu8JzoAsGMoOxabBWAXn1jETF9dRuZ80epcReQt7+Mqk3uMwYWzpIgahBwNL170 GZZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:user-agent:message-id:date:subject:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=i92PXiKmE8RSXTkrhCPRqa70Mq3i3AZS2KijlCov9Ms=; b=esprMIDFj91U0iGmiDU0/19mse5m0eZMgSSEo37Hq8hk4RZGXeW9/IaXs1pSPfyp6A fiHU3YhhzfZBTWWyKpVNibmkKFwEYWjVq+71bwV8mGmkGAia/2Jw+8zNt5wPJFbe1FjU xggoz6S/z6ghMD/+EHEBhU48n6zo2tvrS4870DrPEGFRaSzaEI3HMM7jHnAXD6tH7N9m y39yjj0TgOZNXwwRA3dpifb9Yohf1A9GNT5ypmrqueBZPKUfJBqi0JXJG5JkLcJwre9s vT2XUCZ/RW0VkyNumqOYw7ZOg4l5KbFuYKJQZ65nNa0JwmZ8fIVWPY52q/50G4egYx5Y LGlQ== X-Gm-Message-State: ANoB5plGadbIqe2qyZdCNleJfK9E6Qb08+fMDo6SXgclkIglb8R77ElH 5pFH55G33e1tj5dajbZebMoVS2skFKY= X-Google-Smtp-Source: AA0mqf442jrf7dxE6BhTGo6SkIG17LprOf7VBbKNpqkcopDO7q+05vLrac2LyqyK8ZvEeSh/Ke++Nw== X-Received: by 2002:ac2:4e06:0:b0:4b6:ed8b:4f11 with SMTP id e6-20020ac24e06000000b004b6ed8b4f11mr10133511lfr.53.1671386307338; Sun, 18 Dec 2022 09:58:27 -0800 (PST) Original-Received: from elephant ([5.164.203.15]) by smtp.gmail.com with ESMTPSA id g6-20020a056512118600b00494a603953dsm873097lfr.89.2022.12.18.09.58.26 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Dec 2022 09:58:26 -0800 (PST) Received-SPF: pass client-ip=2a00:1450:4864:20::135; envelope-from=poptsov.artyom@gmail.com; helo=mail-lf1-x135.google.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_CSS_A=0.1 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Original-Sender: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.lisp.guile.user:18785 Archived-At: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hello Guilers, I'm pleased to announce Guile-PNG 0.3.0, Portable Network Graphics (PNG)[1] library for GNU Guile, implemented in pure scheme: https://github.com/artyom-poptsov/guile-png/releases/tag/v0.3.0 This version adds ability to draw polygons and filled rectangles, as well as fixes line drawing algorithm. Also now Guile-PNG allows to create PNG images from scratch. The library uses Guile-ZLIB[2] to compress/decompress the PNG data. Also this is the third project of mine that uses Guile State Machine Compiler (Guile-SMC)[3]. * List of user-visible changes =2D-8<---------------cut here---------------start------------->8--- * Changes in version 0.3.0 (2022-12-18) ** Improve the image parser PNG chunks are now decoded properly, including data decompression. ** Improve the image encoder Implement proper encoders for PNG chunks, including compression. ** Guile-PNG now allows to create PNG images from scratch This also means that Guile-PNG now allows to create PNG images and draw some graphics over them (using =3D(png graphics)=3D module.) ** =3D(png graphics)=3D: Fix line drawing algorithm Re-implement the better version of Bresenham's line drawing algorithm based= on the GNU Octave code from ** =3D(png graphics)=3D: Add "" ** =3D(png graphics)=3D: Add "" ** Update the documentation ** Add new tests =2D-8<---------------cut here---------------end--------------->8--- Happy hacking! =2D Artyom References: 1. https://www.rfc-editor.org/rfc/rfc2083 2. https://notabug.org/guile-zlib/guile-zlib/ 3. https://github.com/artyom-poptsov/guile-smc =2D-=20 Artyom "avp" Poptsov Home page: https://memory-heap.org/~avp/ CADR Hackerspace co-founder: https://cadrspace.ru/ GPG: D0C2 EAC1 3310 822D 98DE B57C E9C5 A2D9 0898 A02F --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQFNBAEBCgA3FiEE0MLqwTMQgi2Y3rV86cWi2QiYoC8FAmOfVMIZHHBvcHRzb3Yu YXJ0eW9tQGdtYWlsLmNvbQAKCRDpxaLZCJigLxq6B/96gSg6y0aSdvfNqn70iQRp bgcdFSuiT5lo/Ayz27YV+OgHQzYMB3riJ+Y9kEdezgRxNrfkwTGmg9uwUHDVj/hX hOO1oWGmy11BkluUhCeX/Iibwd7zlMBvIovL8LYO/sE9LW4hFFXYMu1BvH3nDbY4 K3nGFhnIPPflP5VY1xhZrNWpuH2RngUVgdiqCmJ16pdPRHPtpQ8Kdb+Q7cmxbiVL PgefOLFQSyCNIbo9paS16vxtk1Xq9LUOf1/RHgYLlJJQ/OKyW+YNSGM7uVtZvLDV i6POgAadJOkUPUePu8qQ9sszXsl0YlDXW6P7rofGABmqTij5ik3//y4Hn71iqpA3 =1sKD -----END PGP SIGNATURE----- --=-=-=--