{"id":95412,"date":"2020-09-29T01:42:22","date_gmt":"2020-09-28T23:42:22","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/netbsd-pereshyol-na-okonnyj-menedzher-ctwm-po-umolchaniyu-i-eksperimentiruet-s-wayland"},"modified":"2020-09-29T01:42:22","modified_gmt":"2020-09-28T23:42:22","slug":"netbsd-pereshyol-na-okonnyj-menedzher-ctwm-po-umolchaniyu-i-eksperimentiruet-s-wayland","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/netbsd-pereshyol-na-okonnyj-menedzher-ctwm-po-umolchaniyu-i-eksperimentiruet-s-wayland","title":{"rendered":"NetBSD adotou o gerenciador de janelas CTWM como padr\u00e3o e est\u00e1 experimentando com Wayland","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Projeto NetBSD anunciou<\/a><\/noindex> sobre a mudan\u00e7a do gerenciador de janelas padr\u00e3o na sess\u00e3o X11 com twm<\/a><\/noindex> para CTWM<\/a><\/noindex>. O CTWM \u00e9 um fork do twm, que surgiu em 1992, e foi desenvolvido com o objetivo de criar um gerenciador de janelas leve e totalmente personaliz\u00e1vel, permitindo modificar a apar\u00eancia e o comportamento ao seu gosto.<\/p>\n

O gerenciador de janelas twm foi oferecido no NetBSD nos \u00faltimos 20 anos e, nas condi\u00e7\u00f5es atuais, parecia arcaico. A rea\u00e7\u00e3o negativa das pessoas ao twm padr\u00e3o fez com que os desenvolvedores reavaliassem a interface padr\u00e3o e adotassem um gerenciador de janelas mais funcional, o CTWM, para criar um ambiente mais amig\u00e1vel para os usu\u00e1rios com experi\u00eancia em outros sistemas operacionais. <\/p>\n

O CTWM suporta desktops virtuais, est\u00e1 em ativa evolu\u00e7\u00e3o e \u00e9 distribu\u00eddo sob uma licen\u00e7a compat\u00edvel com o NetBSD. Entre as novas funcionalidades implementadas com base no CTWM, destaca-se o menu de aplicativos gerado automaticamente, combina\u00e7\u00f5es \u00fateis de teclados para um controle completo sem mouse, adapta\u00e7\u00e3o para diferentes resolu\u00e7\u00f5es de tela (incluindo HiDPI ap\u00f3s a adi\u00e7\u00e3o de fontes grandes) e a capacidade de suportar sistemas muito lentos e muito r\u00e1pidos com um \u00fanico arquivo de configura\u00e7\u00e3o. <\/p>\n

Era:
\n

\"NetBSD<\/a><\/noindex><\/center><\/p>\n

Tornou-se:
\n

\"NetBSD<\/a><\/noindex><\/center><\/p>\n

Al\u00e9m disso foi publicado<\/a><\/noindex> nota sobre o estado do projeto para garantir a funcionalidade do servidor compositor no NetBSD swc<\/a><\/noindex> baseado no protocolo Wayland. O port ainda n\u00e3o est\u00e1 pronto para uso di\u00e1rio, mas j\u00e1 \u00e9 adequado para experimentos e para executar aplicativos que usam Qt5, GTK3 ou SDL2. Os problemas incluem incompatibilidade com alguns aplicativos, incluindo Firefox, falta de suporte para execu\u00e7\u00e3o de aplicativos X11 e a possibilidade de funcionar apenas com GPUs Intel, para as quais existe driver para altern\u00e2ncia de modos de v\u00eddeo a n\u00edvel de kernel.<\/p>\n

Entre as caracter\u00edsticas do Wayland que dificultam o port para o NetBSD, menciona-se a quantidade significativa de c\u00f3digo espec\u00edfico do sistema operacional em gerenciadores de composi\u00e7\u00e3o que s\u00e3o respons\u00e1veis pela gest\u00e3o de tela, entrada e controle de janelas. O Wayland n\u00e3o fornece protocolos prontos para funcionalidades como captura de tela, bloqueio de tela e gerenciamento de janelas, e, por enquanto, fica atr\u00e1s do servidor X em \u00e1reas como portabilidade, modularidade e padroniza\u00e7\u00e3o.<\/p>\n

Recursos adicionais s\u00e3o implementados pelo gerenciador de composi\u00e7\u00e3o ou atrav\u00e9s da defini\u00e7\u00e3o de extens\u00f5es para os protocolos. O servidor composto de refer\u00eancia Weston est\u00e1 fortemente vinculado \u00e0 API do n\u00facleo Linux. Por exemplo, a vincula\u00e7\u00e3o ao mecanismo de multiplexa\u00e7\u00e3o de entrada\/sa\u00edda epoll requer uma reestrutura\u00e7\u00e3o para suportar kqueue. Os patches para o uso de kqueue j\u00e1 foram preparados pelos desenvolvedores dos sistemas BSD, mas ainda n\u00e3o foram aceitos na vers\u00e3o principal. <\/p>\n

O c\u00f3digo do servidor compositor de refer\u00eancia foi inicialmente escrito considerando apenas o Linux e n\u00e3o leva em conta as caracter\u00edsticas de outros sistemas (por exemplo, o c\u00f3digo usa «#include <linux\/input.h>» e depende do libinput). No FreeBSD, foi implementado um clone da API de entrada do Linux, mas no NetBSD \u00e9 utilizada uma API fundamentalmente diferente para gerenciar a entrada \u2014 wscons. Atualmente, o suporte ao wscons j\u00e1 foi adicionado ao swc e est\u00e1 programado para ser transferido para outros gerenciadores compositor. <\/p>\n

Representantes do NetBSD pretendem convencer os desenvolvedores do Wayland a n\u00e3o usar uma vincula\u00e7\u00e3o r\u00edgida ao epoll, mas a adotar uma camada universal, como a libevent. Entre os trabalhos planejados, tamb\u00e9m se destaca a atualiza\u00e7\u00e3o da pilha DRM\/KMS do n\u00facleo do NetBSD e dos drivers gr\u00e1ficos, incluindo a portabilidade de c\u00f3digo do n\u00facleo Linux, bem como a adi\u00e7\u00e3o de suporte \u00e0 troca at\u00f4mica de modos de v\u00eddeo, novas vers\u00f5es do DRM e da API Glamor (para executar aplicativos X11 sob o gerenciamento do xwayland). O servidor de composi\u00e7\u00e3o baseado no Wayland pretende adicionar suporte a framebuffers.<\/p>\n

\"NetBSD<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u043f\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u043d\u0430 \u0441\u0432\u043e\u0439 \u0432\u043a\u0443\u0441. \u041e\u043a\u043e\u043d\u043d\u044b\u0439 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440 twm \u043f\u0440\u0435\u0434\u043b\u0430\u0433\u0430\u043b\u0441\u044f \u0432 NetBSD \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0435 20 \u043b\u0435\u0442 \u0438 \u0432 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":95413,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-95412","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47NetBSD mudou 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