{"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\/sv\/blog\/news\/collabora-razvivaet-nadstrojku-dlya-raboty-opencl-i-opengl-poverh-directx","title":{"rendered":"Collabora utvecklar ett lager f\u00f6r att st\u00f6dja OpenCL och OpenGL ovanp\u00e5 DirectX","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Collabora har presenterat<\/a><\/noindex> ny Gallium-drivrutin f\u00f6r Mesa, som implementerar ett lager f\u00f6r att organisera arbetet med API:erna OpenCL 1.2 och OpenGL 3.3 ovanp\u00e5 drivrutiner som st\u00f6der DirectX 12 (D3D12). Koden publicerades<\/a><\/noindex> licensieras under MIT.<\/p>\n

Den f\u00f6reslagna drivrutinen till\u00e5ter anv\u00e4ndning av Mesa p\u00e5 enheter som ursprungligen inte st\u00f6der OpenCL och OpenGL, samt fungerar som en startpunkt f\u00f6r portering av OpenGL\/OpenCL-applikationer f\u00f6r att arbeta ovanp\u00e5 D3D12. F\u00f6r GPU-tillverkare ger subsystemet m\u00f6jlighet att erbjuda st\u00f6d f\u00f6r OpenCL och OpenGL, med drivrutiner som endast st\u00f6der D3D12. <\/p>\n

Bland de n\u00e4rmaste planerna finns att uppn\u00e5 fullst\u00e4ndig genomg\u00e5ng av tester f\u00f6r kompatibilitet med OpenCL 1.2 och OpenGL 3.3, kontroll av kompatibilitet med applikationer och inkludering av resultat i den grundl\u00e4ggande sammans\u00e4ttningen av Mesa. Utvecklingen sker i samarbete med ingenj\u00f6rer fr\u00e5n Microsoft som utvecklar \u00f6ppen<\/a><\/noindex> verktyg D3D11On12<\/a><\/noindex> f\u00f6r att \u00f6vers\u00e4tta spel fr\u00e5n D3D11 till D3D12 och biblioteket D3D12TranslationLayer<\/a><\/noindex>, som implementerar typiska grafiska primitiva ovanp\u00e5 D3D12. <\/p>\n

Implementeringen inkluderar Gallium-drivrutinen, OpenCL-kompilatorn, OpenCL-runtime och kompilatorn f\u00f6r NIR-to-DXIL, som omvandlar det mellanliggande representationsformatet f\u00f6r shaderna NIR som anv\u00e4nds i Mesa till det bin\u00e4ra formatet DXIL (DirectX Intermediate Language), som st\u00f6ds i DirectX 12 och baseras p\u00e5 LLVM 3.7 bitkod (DirectX Shader Compiler<\/a><\/noindex> fr\u00e5n Microsoft som i grunden \u00e4r en ut\u00f6kad fork av LLVM 3.7). OpenCL-kompilatorn \u00e4r f\u00f6rberedd baserat p\u00e5 resultaten av LLVM-projektet och verktygen SPIRV-LLVM<\/a><\/noindex>.<\/p>\n

K\u00e4llkoder med OpenCL-till\u00e4gg kompileras med clang till mellanliggande pseudokod i LLVM (LLVM IR), som sedan omvandlas till det mellanliggande formatet f\u00f6r OpenCL-k\u00e4rnor i SPIR-V-format. K\u00e4rnorna i SPIR-V-formatet \u00f6verf\u00f6rs till Mesa, \u00f6vers\u00e4tts till NIR-format, optimeras och \u00f6verf\u00f6rs till NIR-to-DXIL f\u00f6r att generera ber\u00e4kningsshader i DXIL-format, l\u00e4mplig f\u00f6r k\u00f6rning p\u00e5 GPU med hj\u00e4lp av runtime baserad p\u00e5 DirectX 12.
\nIst\u00e4llet f\u00f6r Clover, som anv\u00e4nds i Mesa-implementationen av OpenCL, f\u00f6resl\u00e5s en ny OpenCL-runtime, som till\u00e5ter fler direkta omvandlingar till API:et DirectX 12.<\/p>\n

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

OpenCL- och OpenGL-drivrutinerna har f\u00f6rberetts med hj\u00e4lp av det gr\u00e4nssnitt som erbjuds av Mesa Gallium, vilket g\u00f6r det m\u00f6jligt att vid skapandet av drivrutinerna undvika specifika detaljer f\u00f6r OpenGL och \u00f6vers\u00e4tta OpenGL-anrop till entiteter som ligger n\u00e4rmare de grafiska primitiva som moderna GPU:er arbetar med. Gallium-drivrutinen tar emot OpenGL-kommandon och involverar \u00f6vers\u00e4ttaren NIR-to-DXIL.
\nbildar kommandobuffertar som k\u00f6rs p\u00e5 GPU, med hj\u00e4lp av D3D12-drivrutinen.<\/p>\n

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

K\u00e4lla: 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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