{"id":75813,"date":"2020-03-28T19:42:24","date_gmt":"2020-03-28T17:42:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/collabora-razvivaet-nadstrojku-dlya-raboty-opencl-i-opengl-poverh-directx"},"modified":"2020-03-28T19:42:24","modified_gmt":"2020-03-28T17:42:24","slug":"collabora-razvivaet-nadstrojku-dlya-raboty-opencl-i-opengl-poverh-directx","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/collabora-razvivaet-nadstrojku-dlya-raboty-opencl-i-opengl-poverh-directx","title":{"rendered":"Collabora desenvolve um complemento para executar OpenCL e OpenGL sobre o DirectX","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A empresa Collabora apresentou<\/a><\/noindex> Novo driver Gallium para Mesa, implementando uma camada para possibilitar o funcionamento das APIs OpenCL 1.2 e OpenGL 3.3 sobre drivers que suportam DirectX 12 (D3D12). C\u00f3digo foi publicado<\/a><\/noindex> sob a licen\u00e7a MIT.<\/p>\n

O driver proposto permite usar Mesa em dispositivos que inicialmente n\u00e3o suportam OpenCL e OpenGL, al\u00e9m de servir como ponto de partida para a portabilidade de aplicativos OpenGL\/OpenCL para opera\u00e7\u00e3o sobre D3D12. Para os fabricantes de GPU, o subsistema oferece a possibilidade de fornecer suporte a OpenCL e OpenGL, na presen\u00e7a de drivers apenas com suporte a D3D12. <\/p>\n

Nos planos mais pr\u00f3ximos, destaca-se a obten\u00e7\u00e3o da completa passagem nos testes de compatibilidade OpenCL 1.2 e OpenGL 3.3, verifica\u00e7\u00e3o de compatibilidade com aplicativos e inclus\u00e3o dos desenvolvimentos no n\u00facleo principal da Mesa. O desenvolvimento est\u00e1 sendo realizado em conjunto com engenheiros da Microsoft. aberto<\/a><\/noindex> um conjunto de ferramentas D3D11On12<\/a><\/noindex> para a tradu\u00e7\u00e3o de jogos de D3D11 para D3D12 e a biblioteca D3D12TranslationLayer<\/a><\/noindex>, implementando primitivas gr\u00e1ficas t\u00edpicas sobre D3D12. <\/p>\n

A implementa\u00e7\u00e3o inclui driver Gallium, compilador OpenCL, runtime OpenCL e um compilador de shaders NIR-to-DXIL, que transforma a representa\u00e7\u00e3o intermedi\u00e1ria dos shaders NIR utilizada na Mesa em um formato bin\u00e1rio DXIL (DirectX Intermediate Language), suportado no DirectX 12 e baseado em bytecode LLVM 3.7 (Compilador de Shader DirectX<\/a><\/noindex> da Microsoft, que \u00e9 essencialmente um fork avan\u00e7ado do LLVM 3.7). O compilador OpenCL foi preparado com base nas contribui\u00e7\u00f5es do projeto LLVM e ferramentas SPIRV-LLVM<\/a><\/noindex>.<\/p>\n

Os c\u00f3digos-fonte com extens\u00f5es OpenCL s\u00e3o compilados usando clang para pseudo-c\u00f3digo intermedi\u00e1rio LLVM (LLVM IR), que \u00e9 ent\u00e3o convertido na representa\u00e7\u00e3o intermedi\u00e1ria de n\u00facleos OpenCL no formato SPIR-V. Os n\u00facleos na representa\u00e7\u00e3o SPIR-V s\u00e3o enviados para a Mesa, traduzidos para o formato NIR, otimizados e enviados ao NIR-to-DXIL para a gera\u00e7\u00e3o de shaders computacionais no formato DXIL, adequado para execu\u00e7\u00e3o em GPU utilizando runtime baseado em DirectX 12.
\nEm vez do Clover, aplicado na implementa\u00e7\u00e3o do OpenCL na Mesa, foi proposto um novo runtime OpenCL, permitindo mais convers\u00f5es diretas na API DirectX 12.<\/p>\n

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

Os drivers OpenCL e OpenGL foram preparados usando a interface Gallium fornecida na Mesa, permitindo que, ao criar drivers, n\u00e3o seja necess\u00e1rio se aprofundar nos detalhes espec\u00edficos do OpenGL e traduzir chamadas OpenGL em entidades mais pr\u00f3ximas das primitivas gr\u00e1ficas com as quais GPUs modernas operam. O driver Gallium recebe comandos OpenGL e, com a ajuda do tradutor NIR-to-DXIL.
\nforma buffers de comandos que s\u00e3o executados na GPU, usando o driver D3D12.<\/p>\n

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

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

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Collabora \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0430 \u043d\u043e\u0432\u044b\u0439 Gallium-\u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u0434\u043b\u044f Mesa, \u0440\u0435\u0430\u043b\u0438\u0437\u0443\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u0441\u043b\u043e\u0439\u043a\u0443 \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0431\u043e\u0442\u044b API OpenCL 1.2 \u0438 OpenGL 3.3 \u043f\u043e\u0432\u0435\u0440\u0445 \u0434\u0440\u0430\u0439\u0432\u0435\u0440\u043e\u0432 \u0441 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 DirectX 12 (D3D12). \u041a\u043e\u0434 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u0434\u0440\u0430\u0439\u0432\u0435\u0440 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Mesa \u043d\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u0430\u0445, \u0438\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0438\u0445 OpenCL \u0438 OpenGL, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0441\u0442\u0430\u0440\u0442\u043e\u0432\u043e\u0439 \u043f\u043e\u0437\u0438\u0446\u0438\u0438 \u0434\u043b\u044f \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f OpenGL\/OpenCL-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u043f\u043e\u0432\u0435\u0440\u0445 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