{"id":86095,"date":"2020-06-21T13:42:24","date_gmt":"2020-06-21T11:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan"},"modified":"2020-06-21T13:42:24","modified_gmt":"2020-06-21T11:42:24","slug":"dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/dlya-staryh-plat-raspberry-pi-podgotovlen-gpu-drajver-s-podderzhkoj-api-vulkan","title":{"rendered":"Un pilote GPU avec support de l'API Vulkan a \u00e9t\u00e9 pr\u00e9par\u00e9 pour les anciennes cartes Raspberry Pi.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Pr\u00e9sent\u00e9<\/a><\/noindex> premi\u00e8re version stable du pilote graphique open source RPi-VK-Driver 1.0<\/a><\/noindex>, mettant en \u0153uvre le support de l'API graphique Vulkan pour les anciennes cartes Raspberry Pi, fournies avec le GPU Broadcom Videocore IV. Le pilote convient \u00e0 tous les mod\u00e8les de cartes Raspberry Pi lanc\u00e9s avant l'arriv\u00e9e de la Raspberry Pi 4, \u2014 allant de \u00abZero\u00bb et \u00ab1 Model A\u00bb \u00e0 \u00ab3 Model B+\u00bb et \u00abCompute Module 3+\u00bb. Le pilote a \u00e9t\u00e9 d\u00e9velopp\u00e9 par Martin Thomas (Martin Thomas<\/a><\/noindex>), ing\u00e9nieur chez NVIDIA, cependant, le d\u00e9veloppement a \u00e9t\u00e9 r\u00e9alis\u00e9 comme un projet personnel, sans lien avec NVIDIA (le pilote a \u00e9t\u00e9 d\u00e9velopp\u00e9 ces deux derni\u00e8res ann\u00e9es pendant son temps libre). Le code est distribu\u00e9<\/a><\/noindex> sous licence MIT.<\/p>\n

\u00c9tant donn\u00e9 que les capacit\u00e9s du GPU VideoCore IV, qui \u00e9quipent les anciennes mod\u00e8les de Raspberry Pi, ne suffisent pas pour une mise en \u0153uvre compl\u00e8te de Vulkan, le pilote ne supporte qu'un sous-ensemble de l'API Vulkan, qui ne couvre pas l'int\u00e9gralit\u00e9 de la norme, mais tente de s'y conformer autant que le permet le mat\u00e9riel. N\u00e9anmoins, la fonctionnalit\u00e9 disponible est suffisante pour de nombreuses applications et jeux, et les performances d\u00e9passent nettement celles des pilotes OpenGL, gr\u00e2ce \u00e0 une gestion de m\u00e9moire plus efficace, un traitement multithread des commandes GPU et un contr\u00f4le direct des op\u00e9rations du GPU. Le pilote prend \u00e9galement en charge des fonctionnalit\u00e9s telles que MSAA (Multisampling anti-aliasing), des shaders de bas niveau et des compteurs de performance. Parmi les limitations, on note l'absence de support pour les shaders GLSL, qui ne sont pas encore disponibles \u00e0 ce stade du d\u00e9veloppement.<\/p>\n

Le m\u00eame auteur publi\u00e9e<\/a><\/noindex> portage du jeu Quake 3 pour Raspberry Pi, servant de d\u00e9monstration des capacit\u00e9s du nouveau pilote. Le jeu est bas\u00e9 sur le moteur ioQuake3, auquel a \u00e9t\u00e9 ajout\u00e9 un backend de rendu modulaire bas\u00e9 sur Vulkan, d\u00e9velopp\u00e9 \u00e0 l'origine par le projet Quake III Arena Kenny Edition<\/a><\/noindex>. Avec le nouveau pilote, le jeu a r\u00e9ussi \u00e0 atteindre<\/a><\/noindex> plus de 100 images par seconde (FPS) sur la carte Raspberry Pi 3B+ en sortie \u00e0 une r\u00e9solution de 720p.<\/p>\n

Rappelons que l'organisation Raspberry Pi Foundation, en collaboration avec la soci\u00e9t\u00e9 Igalia m\u00e8ne<\/a><\/noindex> d\u00e9veloppe son propre pilote Vulkan, qui est encore au stade initial et sera disponible pour l'ex\u00e9cution de certaines applications r\u00e9elles dans la seconde moiti\u00e9 de 2020. Ce pilote est limit\u00e9 au support du GPU VideoCore VI, utilis\u00e9 \u00e0 partir du mod\u00e8le Raspberry Pi 4, et ne prend pas en charge les anciennes cartes. Par rapport \u00e0 OpenGL, l'utilisation de Vulkan permet d'obtenir une augmentation des performances<\/a><\/noindex> des applications graphiques et des jeux.<\/p>\n

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

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

\u041f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0441\u0442\u0430\u0431\u0438\u043b\u044c\u043d\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u0430 RPi-VK-Driver 1.0, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e API Vulkan \u0434\u043b\u044f \u0441\u0442\u0430\u0440\u044b\u0445 \u043f\u043b\u0430\u0442 Raspberry Pi, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0445 \u0441 GPU Broadcom Videocore IV. \u0414\u0440\u0430\u0439\u0432\u0435\u0440 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u0442 \u0434\u043b\u044f \u0432\u0441\u0435\u0445 \u043c\u043e\u0434\u0435\u043b\u0435\u0439 \u043f\u043b\u0430\u0442 Raspberry Pi, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u044b\u0445 \u0434\u043e \u043f\u043e\u044f\u0432\u043b\u0435\u043d\u0438\u044f Raspberry Pi 4, — \u043e\u0442 «Zero» \u0438 «1 Model A» \u0434\u043e «3 Model B+» \u0438 «Compute Module 3+». \u0414\u0440\u0430\u0439\u0432\u0435\u0440 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-86095","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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\n","aioseo_head_json":{"title":"\ud83e\udd47 Un pilote GPU avec support de l'API Vulkan a \u00e9t\u00e9 pr\u00e9par\u00e9 pour les anciennes cartes 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