{"id":77345,"date":"2026-02-24T13:42:05","date_gmt":"2026-02-24T05:42:05","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77345.html"},"modified":"2026-02-24T13:42:05","modified_gmt":"2026-02-24T05:42:05","slug":"linux-%e6%98%be%e7%a4%ba%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%90%88%e6%88%90%e5%99%a8%e6%9e%b6%e6%9e%84%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77345.html","title":{"rendered":"Linux \u663e\u793a\u670d\u52a1\u5668\u4e0e\u5408\u6210\u5668\u67b6\u6784\u8be6\u89e3"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>1. \u5f15\u8a00<\/li>\n<li>\n<ul>\n<li>1.1 \u663e\u793a\u670d\u52a1\u5668<\/li>\n<li>1.2 \u5408\u6210\u5668<\/li>\n<li>1.3 \u5ba2\u6237\u7aef<\/li>\n<li>1.4 \u5386\u53f2\u6f14\u5316<\/li>\n<li>\n<ul>\n<li>1.4.1 X11 \u7684\u67b6\u6784\u5305\u88b1<\/li>\n<li>1.4.2 Wayland \u7684\u6781\u7b80\u4e3b\u4e49\u4e0e\u5f3a\u9694\u79bb<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>2. \u603b\u4f53\u67b6\u6784<\/li>\n<li>3. \u5408\u6210\u5668\u5256\u6790<\/li>\n<li>\n<ul>\n<li>3.1 \u534f\u8bae\u5904\u7406\u4e0e\u8d44\u6e90\u7ba1\u7406<\/li>\n<li>3.2 \u573a\u666f\u56fe<\/li>\n<li>3.3 \u6e32\u67d3\u540e\u7aef<\/li>\n<li>3.4 DRM\/KMS \u540e\u7aef\u4e0e Session \u7ba1\u7406<\/li>\n<\/ul>\n<\/li>\n<li>4. \u7f13\u51b2\u533a\u6a21\u578b\u4e0e\u751f\u547d\u5468\u671f<\/li>\n<li>\n<ul>\n<li>4.1 \u5171\u4eab\u5185\u5b58 vs DMA-BUF<\/li>\n<li>4.2 \u7f13\u51b2\u533a\u751f\u547d\u5468\u671f\u4e0e\u663e\u5f0f\u540c\u6b65<\/li>\n<\/ul>\n<\/li>\n<li>5. \u8f93\u5165\u4e8b\u4ef6\u5904\u7406<\/li>\n<li>\n<ul>\n<li>5.1 \u6d41\u7a0b<\/li>\n<li>5.2 \u526a\u8d34\u677f\u4e0e\u6570\u636e\u4ea4\u6362<\/li>\n<\/ul>\n<\/li>\n<li>6. \u786c\u4ef6\u52a0\u901f\u9ad8\u7ea7\u8def\u5f84<\/li>\n<li>\n<ul>\n<li>6.1 \u76f4\u63a5\u626b\u63cf<\/li>\n<li>6.2 \u786c\u4ef6\u53e0\u52a0\u5c42<\/li>\n<li>6.3 \u73b0\u4ee3\u663e\u793a\u7279\u6027<\/li>\n<\/ul>\n<\/li>\n<li>7. XWayland<\/li>\n<li>8. \u5178\u578b\u5408\u6210\u5668\u5b9e\u73b0\u5bf9\u6bd4<\/li>\n<li>9. \u8c03\u8bd5\u4e0e\u6027\u80fd\u4f18\u5316<\/li>\n<li>\n<ul>\n<li>9.1 \u534f\u8bae\u8c03\u8bd5<\/li>\n<li>9.2 \u6e32\u67d3\u8c03\u8bd5<\/li>\n<li>9.3 \u6027\u80fd\u8ffd\u8e2a<\/li>\n<\/ul>\n<\/li>\n<li>10. \u603b\u7ed3<\/li>\n<\/ul>\n<h2>1. \u5f15\u8a00<\/h2>\n<p>\u4ece X11 \u5230 Wayland \u7684\u6f14\u8fdb\u4e0d\u4ec5\u662f\u534f\u8bae\u7684\u66f4\u66ff&#xff0c;\u66f4\u662f Linux \u56fe\u5f62\u6808\u8bbe\u8ba1\u54f2\u5b66\u7684\u4e00\u6b21\u5f7b\u5e95\u91cd\u6784&#xff0c;\u5b83\u6807\u5fd7\u7740\u56fe\u5f62\u7cfb\u7edf\u4ece\u201c\u670d\u52a1\u5668\u4e2d\u5fc3\u5316\u6e32\u67d3\u201d\u5411\u201c\u5ba2\u6237\u7aef\u76f4\u63a5\u6e32\u67d3\u201d\u7684\u8303\u5f0f\u8f6c\u79fb\u3002\u672c\u6587\u5c06\u6df1\u5165\u89e3\u6784\u73b0\u4ee3\u5408\u6210\u5668&#xff08;Compositor&#xff09;\u7684\u5185\u90e8\u67b6\u6784&#xff0c;\u5256\u6790\u4ece\u5e94\u7528\u6e32\u67d3\u5230\u5c4f\u5e55\u663e\u793a\u7684\u5b8c\u6574\u6570\u636e\u6d41&#xff0c;\u63ed\u793a\u96f6\u62f7\u8d1d&#xff08;Zero-Copy&#xff09;\u3001\u76f4\u63a5\u626b\u63cf&#xff08;Direct Scanout&#xff09;\u4ee5\u53ca\u539f\u5b50\u663e\u793a\u63d0\u4ea4&#xff08;Atomic KMS&#xff09;\u7b49\u6838\u5fc3\u673a\u5236\u80cc\u540e\u7684\u5de5\u7a0b\u539f\u7406\u3002<\/p>\n<p>\u5728\u6df1\u5165\u4ee3\u7801\u548c\u534f\u8bae\u4e4b\u524d&#xff0c;\u6211\u4eec\u9700\u8981\u660e\u786e\u73b0\u4ee3\u56fe\u5f62\u6808\u4e2d\u7684\u4e09\u4e2a\u6838\u5fc3\u89d2\u8272&#xff0c;\u4ee5\u53ca\u5b83\u4eec\u5b9a\u4e49\u7684\u53d8\u5316\u3002<\/p>\n<h3>1.1 \u663e\u793a\u670d\u52a1\u5668<\/h3>\n<p>\u5728\u4f20\u7edf\u7684 X11 \u6a21\u578b\u4e2d&#xff0c;X Server \u663e\u793a\u670d\u52a1\u5668&#xff08;Display Server&#xff09;\u662f\u7edd\u5bf9\u7684\u4e2d\u5fc3\u3002\u5b83\u662f\u4e00\u4e2a\u5e9e\u5927\u7684\u5b88\u62a4\u8fdb\u7a0b&#xff0c;\u8d1f\u8d23&#xff1a;<\/p>\n<ul>\n<li>\u7ed8\u56fe&#xff1a;\u63a5\u6536\u5ba2\u6237\u7aef\u7684\u7ed8\u56fe\u6307\u4ee4&#xff08;\u5982\u753b\u4e00\u6761\u7ebf\u3001\u586b\u5145\u77e9\u5f62&#xff09;&#xff0c;\u6267\u884c\u670d\u52a1\u5668\u7aef\u6e32\u67d3\u3002<\/li>\n<li>\u786c\u4ef6\u7ba1\u7406&#xff1a;\u76f4\u63a5\u63a7\u5236\u663e\u5361\u548c\u8f93\u5165\u8bbe\u5907&#xff08;\u5728 KMS \u666e\u53ca\u524d&#xff0c;X Server \u751a\u81f3\u9700\u8981\u81ea\u5e26\u663e\u5361\u9a71\u52a8&#xff09;\u3002<\/li>\n<li>\u7a97\u53e3\u7ba1\u7406&#xff1a;\u7ef4\u62a4\u7740\u5168\u5c40\u7684\u7a97\u53e3\u6811\u3001\u5b57\u4f53\u8d44\u6e90\u548c\u7ed8\u56fe\u4e0a\u4e0b\u6587&#xff08;Graphics Context&#xff09;\u3002\u7a97\u53e3\u7ba1\u7406\u5668&#xff08;Window Manager&#xff09;\u53ea\u662f\u5b83\u7684\u4e00\u4e2a\u7279\u6b8a\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n<h3>1.2 \u5408\u6210\u5668<\/h3>\n<p>\u5728 Wayland \u6a21\u578b\u4e2d&#xff0c;\u6ca1\u6709\u72ec\u7acb\u7684\u201c\u670d\u52a1\u5668\u8fdb\u7a0b\u201d&#xff0c;\u5408\u6210\u5668\u5373\u670d\u52a1\u5668\u3002<\/p>\n<ul>\n<li>\u89d2\u8272\u5408\u5e76&#xff1a;Wayland \u5408\u6210\u5668&#xff08;Wayland Compositor&#xff09;\u540c\u65f6\u626e\u6f14\u4e86\u663e\u793a\u670d\u52a1\u5668\u3001\u7a97\u53e3\u7ba1\u7406\u5668\u548c\u5408\u6210\u5668\u8fd9\u4e09\u4e2a\u66fe\u5206\u79bb\u7684\u89d2\u8272\u3002<\/li>\n<li>\u804c\u8d23\u6536\u655b&#xff1a;\u5b83\u4e0d\u518d\u8d1f\u8d23\u7ed8\u56fe&#xff08;\u8fd9\u662f\u5ba2\u6237\u7aef\u7684\u4e8b&#xff09;&#xff0c;\u53ea\u8d1f\u8d23\u5408\u6210\u3002\u5b83\u63a5\u6536\u6240\u6709\u5ba2\u6237\u7aef\u6e32\u67d3\u597d\u7684\u56fe\u50cf\u7f13\u51b2\u533a&#xff0c;\u5c06\u5b83\u4eec\u6309\u7167\u5c42\u7ea7\u3001\u900f\u660e\u5ea6\u3001\u4f4d\u7f6e\u7ec4\u5408\u5728\u4e00\u8d77&#xff0c;\u751f\u6210\u6700\u7ec8\u7684\u4e00\u5e27\u753b\u9762&#xff0c;\u5e76\u63d0\u4ea4\u7ed9\u663e\u793a\u786c\u4ef6\u3002<\/li>\n<\/ul>\n<h3>1.3 \u5ba2\u6237\u7aef<\/h3>\n<p>\u8fd0\u884c\u5728\u7528\u6237\u7a7a\u95f4\u7684\u5e94\u7528\u7a0b\u5e8f&#xff08;\u5982\u6d4f\u89c8\u5668\u3001\u6e38\u620f&#xff09;\u3002\u5728 Wayland \u4e2d&#xff0c;\u5ba2\u6237\u7aef\u62e5\u6709\u6781\u9ad8\u7684\u81ea\u4e3b\u6743&#xff1a;\u5b83\u901a\u8fc7 EGL\/Vulkan \u7ed3\u5408 GBM&#xff08;Generic Buffer Management&#xff09;\u76f4\u63a5\u5206\u914d GPU \u663e\u5b58&#xff0c;\u81ea\u884c\u5b8c\u6210\u6e32\u67d3&#xff1b;\u4e0e\u5408\u6210\u5668\u4ea4\u4e92\u7684\u4e0d\u518d\u662f\u7ed8\u56fe\u6307\u4ee4&#xff0c;\u800c\u662f\u6e32\u67d3\u5b8c\u6210\u540e\u7684\u663e\u5b58\u53e5\u67c4&#xff08;Handle\/FD&#xff09;\u3002<\/p>\n<h3>1.4 \u5386\u53f2\u6f14\u5316<\/h3>\n<p>\u7406\u89e3 Wayland \u7684\u8bbe\u8ba1&#xff0c;\u5fc5\u987b\u7406\u89e3 X11 \u4e3a\u4f55\u5728\u73b0\u4ee3\u786c\u4ef6\u9762\u524d\u663e\u5f97\u529b\u4e0d\u4ece\u5fc3\u3002<\/p>\n<h4>1.4.1 X11 \u7684\u67b6\u6784\u5305\u88b1<\/h4>\n<p>X11 \u8bbe\u8ba1\u4e8e 1980 \u5e74\u4ee3&#xff0c;\u5176\u6838\u5fc3\u7406\u5ff5\u662f\u201c\u7f51\u7edc\u900f\u660e\u6027\u201d&#xff0c;\u8fd9\u4e00\u8bbe\u8ba1\u5728\u73b0\u4ee3\u573a\u666f\u4e0b\u66b4\u9732\u51fa\u8bf8\u591a\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u72b6\u6001\u7206\u70b8\u4e0e\u540c\u6b65\u5730\u72f1&#xff1a;X Server \u7ef4\u62a4\u7740\u6d77\u91cf\u7684\u7ed8\u56fe\u4e0a\u4e0b\u6587\u3001\u5b57\u4f53\u3001\u5149\u6807\u7b49\u72b6\u6001\u3002\u5ba2\u6237\u7aef\u6bcf\u6b21\u64cd\u4f5c\u90fd\u53ef\u80fd\u6d89\u53ca\u7e41\u7410\u7684\u72b6\u6001\u540c\u6b65&#xff0c;\u5bfc\u81f4\u534f\u8bae\u901a\u4fe1\u8fc7\u591a&#xff0c;IPC \u5f00\u9500\u5de8\u5927\u3002<\/li>\n<li>\u6e32\u67d3\u8def\u5f84\u5197\u957f&#xff1a;\u968f\u7740 OpenGL \u548c\u73b0\u4ee3 GPU \u7684\u51fa\u73b0&#xff0c;\u5e94\u7528\u666e\u904d\u4e0d\u518d\u53d1\u9001\u7ed8\u56fe\u6307\u4ee4&#xff0c;\u800c\u662f\u91c7\u7528\u76f4\u63a5\u6e32\u67d3\u3002\u4f46\u5728 X11 \u7684\u5408\u6210\u6a21\u578b\u4e0b&#xff0c;\u6570\u636e\u6d41\u53d8\u5f97\u5f02\u5e38\u590d\u6742&#xff1a;\u5ba2\u6237\u7aef&#xff08;GPU \u6e32\u67d3&#xff09; -&gt; X Server -&gt; \u5408\u6210\u5668&#xff08;\u8bfb\u53d6\u5e76\u5408\u6210&#xff09; -&gt; X Server&#xff08;\u663e\u793a&#xff09; -&gt; \u5185\u6838&#xff0c;\u8fd9\u79cd\u6765\u56de\u7684\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u6570\u636e\u62f7\u8d1d\u5bfc\u81f4\u4e86\u753b\u9762\u6495\u88c2&#xff08;Tearing&#xff09;\u548c\u4e0d\u53ef\u9884\u6d4b\u7684\u8f93\u5165\u5ef6\u8fdf\u3002<\/li>\n<li>\u5b89\u5168\u6a21\u578b\u7684\u7f3a\u5931&#xff1a;X11 \u7684\u8bbe\u8ba1\u521d\u8877\u662f\u4fe1\u4efb\u6240\u6709\u5ba2\u6237\u7aef&#xff0c;\u4efb\u4f55\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u8bf7\u6c42 X Server \u7ed9\u51fa\u6240\u6709\u7a97\u53e3\u7684\u5185\u5bb9&#xff08;\u622a\u5c4f&#xff09;&#xff0c;\u6216\u8005\u76d1\u542c\u5168\u5c40\u7684\u952e\u76d8\u4e8b\u4ef6&#xff08;Keylogger&#xff09;\u3002\u8fd9\u5728\u73b0\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u5b89\u5168\u6f0f\u6d1e\u3002<\/li>\n<\/ul>\n<h4>1.4.2 Wayland \u7684\u6781\u7b80\u4e3b\u4e49\u4e0e\u5f3a\u9694\u79bb<\/h4>\n<p>Wayland \u7684\u6838\u5fc3\u7406\u5ff5\u662f&#xff1a;\u628a\u4e0d\u9700\u8981\u5185\u6838\u5e72\u9884\u7684\u4efb\u52a1&#xff0c;\u5168\u90e8\u79fb\u51fa\u663e\u793a\u670d\u52a1\u5668\u3002<\/p>\n<ul>\n<li>\u53bb\u4e2d\u5fc3\u5316\u7ed8\u56fe&#xff1a;Wayland \u534f\u8bae\u672c\u8eab\u4e0d\u5305\u542b\u4efb\u4f55\u7ed8\u56fe API&#xff0c;\u753b\u56fe\u7684\u4efb\u52a1\u5b8c\u5168\u4ea4\u7ed9 OpenGL \u6216 Vulkan \u5b8c\u6210\u3002<\/li>\n<li>\u76f4\u63a5\u6e32\u67d3\u4e0e\u96f6\u62f7\u8d1d&#xff1a;\u5ba2\u6237\u7aef\u76f4\u63a5\u901a\u8fc7 GBM\/DRM \u63a5\u53e3\u5206\u914d\u5185\u5b58\/\u663e\u5b58&#xff08;DMA-BUF&#xff09;&#xff0c;\u6e32\u67d3\u5b8c\u6210\u540e\u4ec5\u9700\u901a\u8fc7 Wayland \u534f\u8bae\u4f20\u9012\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;fd&#xff09;\u3002\u5408\u6210\u5668\u62ff\u5230 fd \u540e&#xff0c;\u76f4\u63a5\u751f\u6210\u7eb9\u7406\u8fdb\u884c\u5408\u6210&#xff0c;\u5b9e\u73b0\u4e86\u771f\u6b63\u7684\u96f6\u62f7\u8d1d\u3002<\/li>\n<li>\u4e25\u683c\u7684\u9694\u79bb\u673a\u5236&#xff1a;Wayland \u9ed8\u8ba4\u7981\u6b62\u5ba2\u6237\u7aef\u201c\u770b\u5230\u201d\u5176\u4ed6\u5ba2\u6237\u7aef\u3002\u622a\u56fe\u3001\u5f55\u5c4f\u3001\u5168\u5c40\u5feb\u6377\u952e\u7b49\u529f\u80fd&#xff0c;\u4e0d\u518d\u662f\u5ba2\u6237\u7aef\u968f\u624b\u53ef\u5f97\u7684\u6743\u9650&#xff0c;\u800c\u5fc5\u987b\u901a\u8fc7 XDG-Desktop-Portal \u7b49\u673a\u5236&#xff0c;\u7531\u5408\u6210\u5668\u548c\u7528\u6237\u660e\u786e\u6388\u6743\u624d\u80fd\u8fdb\u884c\u3002<\/li>\n<\/ul>\n<h2>2. 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.label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-53YAEKS7n0prtqAa .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-53YAEKS7n0prtqAa :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}#mermaid-svg-53YAEKS7n0prtqAa .comp&gt;*{fill:#e7fad5!important;stroke:#8ab75c!important;stroke-width:2px!important;}#mermaid-svg-53YAEKS7n0prtqAa .comp span{fill:#e7fad5!important;stroke:#8ab75c!important;stroke-width:2px!important;}<\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u5408\u6210\u5668\u5185\u90e8\u67b6\u6784<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/p>\n<p>\u89e3\u6790\u8bf7\u6c42<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/p>\n<p>\u7126\u70b9\/\u4e8b\u4ef6<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/p>\n<p>\u6743\u9650\u4ef2\u88c1<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/p>\n<p>\u6743\u9650\u4ef2\u88c1<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"edgeLabel\">1. \u904d\u5386 Surface<\/span><\/p>\n<p>           <span class=\"edgeLabel\">2. \u7ed8\u5236\u5408\u6210\u5e27<\/span><\/p>\n<p>           <span class=\"edgeLabel\">3. \u76f4\u63a5\u626b\u63cf<\/span><\/p>\n<p>           <span class=\"edgeLabel\"><\/p>\n<p>PageFlip<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u534f\u8bae\u5904\u7406<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u5ba2\u6237\u7aef\u8fde\u63a5<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u573a\u666f\u56fe<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u8f93\u5165\u7ba1\u7406<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>Session \u7ba1\u7406&#xff08;libseat\/logind&#xff09;<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>DRM \u540e\u7aef<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>\u6e32\u67d3\u540e\u7aef<\/p>\n<p><\/span><\/p>\n<p>           <span class=\"nodeLabel\"><\/p>\n<p>Monitor<\/p>\n<p><\/span><\/p>\n<h3>3.1 \u534f\u8bae\u5904\u7406\u4e0e\u8d44\u6e90\u7ba1\u7406<\/h3>\n<p>\u5408\u6210\u5668\u672c\u8d28\u662f\u4e00\u4e2a Socket \u670d\u52a1\u5668&#xff0c;\u6838\u5fc3\u5904\u7406\u903b\u8f91\u5982\u4e0b&#xff1a;<\/p>\n<ul>\n<li>Registry &amp; Global&#xff1a;\u5ba2\u6237\u7aef\u8fde\u63a5\u540e&#xff0c;\u9996\u5148\u67e5\u8be2 Registry&#xff0c;\u5408\u6210\u5668\u901a\u8fc7\u5b83\u5e7f\u64ad\u652f\u6301\u7684\u5168\u5c40\u63a5\u53e3&#xff08;\u5982 wl_compositor, wl_shm, wl_seat&#xff09;\u3002<\/li>\n<li>\u8d44\u6e90\u6e05\u7406&#xff1a;\u5f53\u5ba2\u6237\u7aef\u5d29\u6e83\u6216\u65ad\u5f00\u65f6&#xff0c;\u5185\u6838\u4f1a\u901a\u77e5\u5408\u6210\u5668 Socket \u5173\u95ed\u3002\u5408\u6210\u5668\u5fc5\u987b\u5229\u7528 wl_resource_destroy \u673a\u5236\u6e05\u7406\u8be5\u5ba2\u6237\u7aef\u6b8b\u7559\u7684\u6240\u6709\u663e\u5b58\u53e5\u67c4\u548c\u5bf9\u8c61&#xff0c;\u9632\u6b62\u8d44\u6e90\u6cc4\u6f0f\u3002<\/li>\n<\/ul>\n<h3>3.2 \u573a\u666f\u56fe<\/h3>\n<p>\u8fd9\u662f\u5408\u6210\u5668\u7684\u201c\u5927\u8111\u201d&#xff0c;\u7ef4\u62a4\u7740\u5c4f\u5e55\u4e0a\u6240\u6709\u5185\u5bb9\u7684\u903b\u8f91\u7ed3\u6784&#xff08;\u4e0d\u4ec5\u9650\u4e8e\u7a97\u53e3&#xff09;&#xff1a;<\/p>\n<ul>\n<li>Surface Tree&#xff1a;\u7a97\u53e3\u5e76\u975e\u5e73\u9762\u7ed3\u6784&#xff0c;\u53ef\u80fd\u5b58\u5728\u5d4c\u5957&#xff08;Subsurfaces&#xff09;\u3002\u4f8b\u5982\u6d4f\u89c8\u5668\u4e2d\u7684\u89c6\u9891\u5f39\u7a97\u53ef\u80fd\u662f\u72ec\u7acb\u7684 subsurface&#xff0c;\u62e5\u6709\u72ec\u7acb\u7684\u5237\u65b0\u7387\u548c Buffer\u3002<\/li>\n<li>Transforms&#xff1a;\u5904\u7406\u7a97\u53e3\u7684\u65cb\u8f6c\u3001\u7f29\u653e&#xff08;HiDPI&#xff09;\u4ee5\u53ca\u88c1\u526a&#xff08;Clipping&#xff09;\u3002<\/li>\n<li>Damage Tracking&#xff1a;\u5408\u6210\u5668\u4f1a\u7cbe\u786e\u8ba1\u7b97\u6bcf\u4e00\u5e27\u5c4f\u5e55\u7684\u810f\u533a\u57df&#xff08;Damage Region&#xff09;\u3002\u82e5\u4ec5\u5149\u6807\u79fb\u52a8&#xff0c;\u5408\u6210\u5668\u4ec5\u91cd\u7ed8\u5149\u6807\u8986\u76d6\u7684\u5c0f\u533a\u57df&#xff0c;\u800c\u975e\u5168\u5c4f\u91cd\u7ed8&#xff0c;\u5927\u5e45\u964d\u4f4e\u529f\u8017\u3002<\/li>\n<\/ul>\n<h3>3.3 \u6e32\u67d3\u540e\u7aef<\/h3>\n<p>\u8fd9\u662f\u5408\u6210\u5668\u7684\u201c\u753b\u5e08\u201d&#xff0c;\u8d1f\u8d23\u5c06\u573a\u666f\u56fe\u8f6c\u5316\u4e3a\u53ef\u663e\u793a\u7684\u56fe\u50cf&#xff1a;<\/p>\n<ul>\n<li>GLES\/Vulkan Renderer&#xff1a;\u4f7f\u7528 GPU \u5c06\u5ba2\u6237\u7aef\u7684 Buffer \u8d34\u5230\u6700\u7ec8\u7684\u5e27\u7f13\u51b2\u533a\u7eb9\u7406\u4e0a\u3002\u9700\u6ce8\u610f&#xff1a;\u73b0\u4ee3\u5408\u6210\u5668\u9700\u5904\u7406\u683c\u5f0f\u4fee\u9970\u7b26&#xff08;Modifiers&#xff09;&#xff0c;\u786e\u4fdd\u6b63\u786e\u8bfb\u53d6\u5ba2\u6237\u7aef\u4ee5 Tiling&#xff08;\u5e73\u94fa&#xff09;\u65b9\u5f0f\u5b58\u50a8\u5728\u663e\u5b58\u4e2d\u7684\u6570\u636e&#xff0c;\u800c\u975e\u4ec5\u652f\u6301\u7ebf\u6027\u5185\u5b58\u3002<\/li>\n<li>Pixman Renderer&#xff1a;CPU \u8f6f\u4ef6\u6e32\u67d3&#xff0c;\u901a\u5e38\u4f5c\u4e3a\u5b89\u5168\u56de\u9000&#xff08;Fallback&#xff09;\u8def\u5f84&#xff0c;\u7528\u4e8e\u8c03\u8bd5\u6216\u65e0 GPU \u73af\u5883\u3002<\/li>\n<\/ul>\n<h3>3.4 DRM\/KMS \u540e\u7aef\u4e0e Session \u7ba1\u7406<\/h3>\n<p>\u8fd9\u662f\u5408\u6210\u5668\u7684\u201c\u9a71\u52a8\u63a5\u53e3\u201d&#xff0c;\u8d1f\u8d23\u4e0e\u5185\u6838\u548c\u786c\u4ef6\u4ea4\u4e92&#xff1a;<\/p>\n<ul>\n<li>Session \u7ba1\u7406&#xff08;libseat&#xff09;&#xff1a;\u6613\u88ab\u5ffd\u7565\u4f46\u81f3\u5173\u91cd\u8981\u7684\u73af\u8282\u3002\u5408\u6210\u5668\u901a\u5e38\u4ee5\u666e\u901a\u7528\u6237\u6743\u9650\u8fd0\u884c&#xff0c;\u65e0\u6cd5\u76f4\u63a5 open(&#034;\/dev\/dri\/card0&#034;)&#xff0c;\u9700\u901a\u8fc7 libseat \u4e0e systemd-logind \u6216 seatd \u901a\u4fe1&#xff0c;\u52a8\u6001\u83b7\u53d6\u663e\u5361\u548c\u8f93\u5165\u8bbe\u5907\u7684\u63a7\u5236\u6743&#xff08;FD&#xff09;&#xff0c;\u5b9e\u73b0\u65e0\u9700 root \u6743\u9650\u542f\u52a8\u56fe\u5f62\u754c\u9762\u3002<\/li>\n<li>Atomic Commit&#xff1a;\u73b0\u4ee3 Linux \u663e\u793a\u7684\u6838\u5fc3\u673a\u5236\u3002\u5408\u6210\u5668\u5c06\u6240\u6709\u5e73\u9762\u7684\u5c5e\u6027&#xff08;\u4f4d\u7f6e\u3001Buffer \u53e5\u67c4\u3001\u683c\u5f0f&#xff09;\u6253\u5305\u6210\u539f\u5b50\u8bf7\u6c42\u53d1\u9001\u7ed9\u5185\u6838&#xff0c;\u5185\u6838\u4fdd\u8bc1\u8bf7\u6c42\u8981\u4e48\u5168\u90e8\u6210\u529f\u663e\u793a&#xff0c;\u8981\u4e48\u5168\u90e8\u5931\u8d25&#xff08;\u56de\u6eda&#xff09;&#xff0c;\u89e3\u51b3\u4e86\u4f20\u7edf\u6a21\u5f0f\u4e0b\u5206\u8fa8\u7387\u8c03\u6574\u6216\u7a97\u53e3\u79fb\u52a8\u65f6\u7684\u5c4f\u5e55\u95ea\u70c1\u95ee\u9898\u3002<\/li>\n<\/ul>\n<h2>4. \u7f13\u51b2\u533a\u6a21\u578b\u4e0e\u751f\u547d\u5468\u671f<\/h2>\n<p>Wayland \u5b9e\u73b0\u9ad8\u6027\u80fd\u7684\u6838\u5fc3\u5728\u4e8e\u9ad8\u6548\u7684 Buffer \u7ba1\u7406\u53ca\u914d\u5957\u7684\u540c\u6b65\u673a\u5236\u3002<\/p>\n<h3>4.1 \u5171\u4eab\u5185\u5b58 vs DMA-BUF<\/h3>\n<table>\n<tr>\u7279\u6027wl_shm&#xff08;\u5171\u4eab\u5185\u5b58&#xff09;zwp_linux_dmabuf&#xff08;DMA-BUF&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>\u539f\u7406<\/td>\n<td>mmap \u4e00\u5757\u5185\u5b58&#xff0c;CPU \u5199\u5165\u3001CPU \u8bfb\u53d6<\/td>\n<td>GPU \u663e\u5b58\u53e5\u67c4&#xff08;fd&#xff09;\u4f20\u9012<\/td>\n<\/tr>\n<tr>\n<td>\u5206\u914d\u5668<\/td>\n<td>\u4f20\u7edf POSIX shm<\/td>\n<td>GBM<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>\u8f6f\u4ef6\u6e32\u67d3\u5ba2\u6237\u7aef\u3001\u7b80\u5355 GUI \u5de5\u5177\u3001Crash Handler<\/td>\n<td>\u6e38\u620f\u3001\u6d4f\u89c8\u5668\u3001\u89c6\u9891\u64ad\u653e\u5668\u3001\u9ad8\u6027\u80fd UI<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd<\/td>\n<td>\u8f83\u6162&#xff0c;\u6d89\u53ca CPU \u62f7\u8d1d\u548c\u603b\u7ebf\u4f20\u8f93<\/td>\n<td>\u6781\u5feb&#xff0c;\u96f6\u62f7\u8d1d<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u636e\u6d41<\/td>\n<td>\u5ba2\u6237\u7aef CPU -&gt; \u7cfb\u7edf\u5185\u5b58 -&gt; \u5408\u6210\u5668 GPU \u4e0a\u4f20<\/td>\n<td>\u5ba2\u6237\u7aef GPU -&gt; \u663e\u5b58 -&gt; \u5408\u6210\u5668 GPU \u91c7\u6837<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>4.2 \u7f13\u51b2\u533a\u751f\u547d\u5468\u671f\u4e0e\u663e\u5f0f\u540c\u6b65<\/h3>\n<p>Buffer \u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u662f\u56fe\u5f62\u6808\u4e2d\u6613\u51fa Bug \u7684\u73af\u8282&#xff0c;\u5176\u6838\u5fc3\u6d41\u7a0b\u5982\u4e0b&#xff1a;<\/p>\n<p>     \u786c\u4ef6 (GPU\/DC)<\/p>\n<p>     \u5408\u6210\u5668<\/p>\n<p>     \u5ba2\u6237\u7aef (App)<\/p>\n<p>      \u786c\u4ef6 (GPU\/DC)<\/p>\n<p>      \u5408\u6210\u5668<\/p>\n<p>      \u5ba2\u6237\u7aef (App)<\/p>\n<p>  #mermaid-svg-G3l2VoCnPnGi6UIa{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-G3l2VoCnPnGi6UIa .error-icon{fill:hsl(220.5882352941, 100%, 98.3333333333%);}#mermaid-svg-G3l2VoCnPnGi6UIa .error-text{fill:rgb(8.5000000002, 5.7500000001, 0);stroke:rgb(8.5000000002, 5.7500000001, 0);}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-G3l2VoCnPnGi6UIa .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-G3l2VoCnPnGi6UIa .marker{fill:#0b0b0b;stroke:#0b0b0b;}#mermaid-svg-G3l2VoCnPnGi6UIa .marker.cross{stroke:#0b0b0b;}#mermaid-svg-G3l2VoCnPnGi6UIa svg{font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-G3l2VoCnPnGi6UIa p{margin:0;}#mermaid-svg-G3l2VoCnPnGi6UIa .actor{stroke:#B0C4DE;fill:#E6E6FA;}#mermaid-svg-G3l2VoCnPnGi6UIa text.actor&gt;tspan{fill:#333;stroke:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .actor-line{stroke:#4B0082;}#mermaid-svg-G3l2VoCnPnGi6UIa .innerArc{stroke-width:1.5;stroke-dasharray:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa #arrowhead path{fill:#2E8B57;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .sequenceNumber{fill:#f4f4f4;}#mermaid-svg-G3l2VoCnPnGi6UIa #sequencenumber{fill:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa #crosshead path{fill:#2E8B57;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .messageText{fill:#191970;stroke:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .labelBox{stroke:#6495ED;fill:#F0F8FF;}#mermaid-svg-G3l2VoCnPnGi6UIa .labelText,#mermaid-svg-G3l2VoCnPnGi6UIa .labelText&gt;tspan{fill:#4682B4;stroke:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .loopText,#mermaid-svg-G3l2VoCnPnGi6UIa .loopText&gt;tspan{fill:#5F9EA0;stroke:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:#6495ED;fill:#6495ED;}#mermaid-svg-G3l2VoCnPnGi6UIa .note{stroke:#FFD700;fill:#FFFACD;}#mermaid-svg-G3l2VoCnPnGi6UIa .noteText,#mermaid-svg-G3l2VoCnPnGi6UIa .noteText&gt;tspan{fill:#333;stroke:none;}#mermaid-svg-G3l2VoCnPnGi6UIa .activation0{fill:#D4F2E7;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .activation1{fill:#D4F2E7;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .activation2{fill:#D4F2E7;stroke:#2E8B57;}#mermaid-svg-G3l2VoCnPnGi6UIa .actorPopupMenu{position:absolute;}#mermaid-svg-G3l2VoCnPnGi6UIa .actorPopupMenuPanel{position:absolute;fill:#E6E6FA;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-G3l2VoCnPnGi6UIa .actor-man line{stroke:#B0C4DE;fill:#E6E6FA;}#mermaid-svg-G3l2VoCnPnGi6UIa .actor-man circle,#mermaid-svg-G3l2VoCnPnGi6UIa line{stroke:#B0C4DE;fill:#E6E6FA;stroke-width:2px;}#mermaid-svg-G3l2VoCnPnGi6UIa :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>     1. \u521b\u5efa &amp; \u6e32\u67d3<\/p>\n<p>     \u63d2\u5165 Release Fence (\u663e\u5f0f\u540c\u6b65)<\/p>\n<p>     2. \u6301\u6709 &amp; \u7b49\u5f85<\/p>\n<p>     3. \u626b\u63cf\u663e\u793a<\/p>\n<p>     4. \u91ca\u653e<\/p>\n<p>     5. \u590d\u7528<\/p>\n<p>   GL\/Vulkan \u6e32\u67d3\u5230 buffer_A<\/p>\n<p>   wl_surface.attach(buffer_A)<\/p>\n<p>   wp_linux_drm_syncobj (\u4f20\u9012 Fence)<\/p>\n<p>   wl_surface.commit()<\/p>\n<p>   \u9501\u5b9a buffer_A (Ref Count &#043;1)<\/p>\n<p>   \u7b49\u5f85 Fence \u4fe1\u53f7 (\u4e0d\u963b\u585e CPU)<\/p>\n<p>   \u4f7f\u7528 buffer_A \u8fdb\u884c\u5408\u6210\u6e32\u67d3<\/p>\n<p>   \u63d0\u4ea4\u5e27 (PageFlip)<\/p>\n<p>   VBlank \u4e2d\u65ad (\u4e0a\u4e00\u5e27\u663e\u793a\u5b8c\u6bd5)<\/p>\n<p>   wl_buffer.release(buffer_A)<\/p>\n<p>   \u91cd\u65b0\u4f7f\u7528 buffer_A \u6e32\u67d3\u4e0b\u4e00\u5e27<\/p>\n<p>\u663e\u5f0f\u540c\u6b65&#xff08;Explicit Sync&#xff09;&#xff1a;<\/p>\n<p>\u4f20\u7edf Linux \u56fe\u5f62\u6808\u4f9d\u8d56\u9690\u5f0f\u540c\u6b65&#xff08;Implicit Sync&#xff09;&#xff0c;\u5373\u5185\u6838\u9a71\u52a8\u901a\u8fc7 Buffer \u4e0a\u7684\u9690\u5f0f Fence \u81ea\u52a8\u7ba1\u7406\u4f9d\u8d56\u5173\u7cfb\u3002\u4f46\u8fd9\u5728\u590d\u6742\u7684\u73b0\u4ee3 GPU \u573a\u666f&#xff08;\u5c24\u5176\u662f NVIDIA \u9a71\u52a8&#xff09;\u4e0b\u6613\u5bfc\u81f4\u6027\u80fd\u74f6\u9888\u6216\u6b7b\u9501\u3002<\/p>\n<p>Wayland \u6700\u65b0\u7684 Linux DRM Syncobj \u534f\u8bae\u5f15\u5165\u663e\u5f0f\u540c\u6b65&#xff1a;\u5ba2\u6237\u7aef\u63d0\u4ea4 Buffer \u65f6&#xff0c;\u663e\u5f0f\u9644\u5e26 Acquire Fence&#xff08;\u544a\u77e5\u5408\u6210\u5668\u53ef\u8bfb\u53d6\u7684\u65f6\u673a&#xff09;\u548c Release Fence&#xff08;\u5408\u6210\u5668\u544a\u77e5\u5ba2\u6237\u7aef\u8bfb\u53d6\u5b8c\u6210\u7684\u65f6\u673a&#xff09;\u3002\u8fd9\u4e00\u673a\u5236\u5927\u5e45\u6539\u5584\u540c\u6b65\u95ee\u9898&#xff0c;\u662f\u89e3\u51b3 Wayland \u4e0b\u90e8\u5206\u663e\u5361\/\u9a71\u52a8&#xff08;\u5982\u90e8\u5206 NVIDIA \u9a71\u52a8&#xff09;\u95ea\u5c4f\u3001\u6389\u5e27\u95ee\u9898\u7684\u5173\u952e&#xff0c;\u5b9e\u9645\u6548\u679c\u53d6\u51b3\u4e8e\u9a71\u52a8\u5bf9\u663e\u5f0f\u540c\u6b65\u7684\u652f\u6301\u7a0b\u5ea6\u3002<\/p>\n<h2>5. \u8f93\u5165\u4e8b\u4ef6\u5904\u7406<\/h2>\n<p>\u5408\u6210\u5668\u540c\u65f6\u7ba1\u7406\u8f93\u51fa\u4e0e\u8f93\u5165&#xff0c;\u8f93\u5165\u5904\u7406\u4e0d\u4ec5\u662f\u5750\u6807\u4f20\u9012&#xff0c;\u8fd8\u6d89\u53ca\u590d\u6742\u7684\u952e\u4f4d\u6620\u5c04\u903b\u8f91\u3002<\/p>\n<h3>5.1 \u6d41\u7a0b<\/h3>\n<li>libinput \u5c42&#xff1a;\u5408\u6210\u5668\u94fe\u63a5 libinput \u5e93&#xff0c;\u4ece \/dev\/input\/event* \u89c4\u8303\u5316\u8bfb\u53d6\u9f20\u6807\u3001\u952e\u76d8\u3001\u89e6\u6478\u677f\u6570\u636e&#xff0c;\u8d1f\u8d23\u53bb\u6296\u52a8\u3001\u52a0\u901f\u5ea6\u66f2\u7ebf\u53ca 1:1 \u89e6\u63a7\u677f\u624b\u52bf\u5904\u7406\u3002<\/li>\n<li>\u5750\u6807\u8f6c\u6362&#xff1a;\u5c06\u89e6\u6478\u5c4f\u7edd\u5bf9\u5750\u6807\u6620\u5c04\u5230\u903b\u8f91\u5c4f\u5e55\u5750\u6807&#xff1b;\u591a\u5c4f\u5e55\u573a\u666f\u4e0b&#xff0c;\u9700\u5904\u7406\u8de8\u5c4f\u5e55\u7684\u5750\u6807\u53d8\u6362\u77e9\u9635\u3002<\/li>\n<li>\u952e\u76d8\u6620\u5c04&#xff1a;\u4e0e X11 \u4e0d\u540c&#xff0c;Wayland \u5408\u6210\u5668\u4e0d\u76f4\u63a5\u53d1\u9001\u952e\u503c&#xff0c;\u800c\u662f\u53d1\u9001\u201c\u626b\u63cf\u7801&#xff08;Scancode&#xff09;\u201d\u3002\u5408\u6210\u5668\u901a\u8fc7 xkbcommon \u7f16\u8bd1\u952e\u76d8\u5e03\u5c40&#xff08;\u5982 US\u3001Dvorak&#xff09;&#xff0c;\u5c06\u5176\u5e8f\u5217\u5316\u4e3a\u6587\u4ef6\u63cf\u8ff0\u7b26&#xff08;mmap \u5185\u5b58\u5757&#xff09;\u5e76\u5728\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\u53d1\u9001&#xff1b;\u5ba2\u6237\u7aef\u62ff\u5230 Keymap \u540e&#xff0c;\u81ea\u884c\u5c06 Scancode \u7ffb\u8bd1\u4e3a\u5177\u4f53\u7b26\u53f7&#xff08;Keysym&#xff09;\u3002\u8be5\u8bbe\u8ba1\u7b80\u5316\u5408\u6210\u5668\u903b\u8f91&#xff0c;\u4e14\u5141\u8bb8\u6bcf\u4e2a\u5ba2\u6237\u7aef\u62e5\u6709\u72ec\u7acb\u952e\u76d8\u72b6\u6001\u3002<\/li>\n<li>\u7126\u70b9\u5224\u5b9a&#xff1a;\u6839\u636e\u7a97\u53e3\u5806\u53e0&#xff08;Z-Order&#xff09;\u548c\u9f20\u6807\u4f4d\u7f6e&#xff0c;\u786e\u5b9a\u4e8b\u4ef6\u53d1\u9001\u7684\u76ee\u6807 Surface\u3002<\/li>\n<li>\u4e8b\u4ef6\u53d1\u9001&#xff1a;\u901a\u8fc7 wl_pointer.motion\u3001wl_keyboard.key \u7b49\u534f\u8bae\u4e8b\u4ef6\u4f20\u9012\u8f93\u5165\u4fe1\u606f\u3002<\/li>\n<h3>5.2 \u526a\u8d34\u677f\u4e0e\u6570\u636e\u4ea4\u6362<\/h3>\n<p>Wayland \u7684\u526a\u8d34\u677f&#xff08;Data Device&#xff09;\u673a\u5236\u91c7\u7528\u60f0\u6027\u590d\u5236&#xff08;Lazy Copy&#xff09;&#xff1a;<\/p>\n<p>\u7528\u6237\u6309\u4e0b Ctrl&#043;C \u65f6&#xff0c;\u7126\u70b9\u5ba2\u6237\u7aef\u4ec5\u544a\u77e5\u5408\u6210\u5668\u201c\u6211\u62e5\u6709\u6587\u672c\u3001\u56fe\u7247\u3001HTML \u7b49\u683c\u5f0f\u7684\u6570\u636e\u201d&#xff0c;\u6b64\u65f6\u4e0d\u53d1\u751f\u4efb\u4f55\u6570\u636e\u62f7\u8d1d&#xff1b;\u5f53\u53e6\u4e00\u7a97\u53e3\u6309\u4e0b Ctrl&#043;V \u65f6&#xff0c;\u8be5\u5ba2\u6237\u7aef\u5411\u5408\u6210\u5668\u8bf7\u6c42\u6570\u636e&#xff0c;\u5408\u6210\u5668\u5efa\u7acb\u7ba1\u9053&#xff08;Pipe&#xff09;&#xff0c;\u8ba9\u6e90\u5ba2\u6237\u7aef\u76f4\u63a5\u5c06\u6570\u636e\u5199\u5165\u7ba1\u9053&#xff0c;\u76ee\u6807\u5ba2\u6237\u7aef\u4ece\u7ba1\u9053\u8bfb\u53d6\u3002\u8be5\u673a\u5236\u65e2\u4fdd\u8bc1\u5b89\u5168&#xff08;\u65e0\u4e2d\u95f4\u4eba\u55c5\u63a2\u526a\u8d34\u677f&#xff09;&#xff0c;\u53c8\u63d0\u5347\u6548\u7387&#xff08;\u5982\u5927\u56fe\u7247\u4ec5\u5728\u7c98\u8d34\u65f6\u4f20\u8f93&#xff09;\u3002<\/p>\n<h2>6. 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Overlay Planes&#xff08;\u53e0\u52a0\u56fe\u5c42&#xff09;\u3002<\/p>\n<p>\u89c6\u9891\u64ad\u653e\u4f18\u5316\u573a\u666f&#xff08;\u4ee5\u6d4f\u89c8\u5668\u64ad\u653e\u89c6\u9891\u4e3a\u4f8b&#xff09;&#xff1a;<\/p>\n<li>\u6d4f\u89c8\u5668\u5c06\u89c6\u9891\u89e3\u7801\u4e3a NV12 \u683c\u5f0f\u7684 Buffer\u3002<\/li>\n<li>\u5408\u6210\u5668\u8bc6\u522b\u8be5 Surface \u4e3a\u89c6\u9891\u7c7b\u578b&#xff0c;\u4e14\u663e\u793a\u63a7\u5236\u5668\u652f\u6301 Overlay\u3002<\/li>\n<li>\u5408\u6210\u5668\u5c06 UI \u5c42\u901a\u8fc7 GPU \u5408\u6210\u540e\u653e\u5165 Primary Plane\u3002<\/li>\n<li>\u5408\u6210\u5668\u5c06\u89c6\u9891 Buffer \u4e0d\u7ecf\u8f6c\u6362\u76f4\u63a5\u653e\u5165 Overlay Plane\u3002<\/li>\n<li>\u663e\u793a\u63a7\u5236\u5668\u786c\u4ef6\u81ea\u52a8\u6df7\u5408\u4e24\u4e2a\u56fe\u5c42\u3002<\/li>\n<p>\u8be5\u6d41\u7a0b\u7701\u53bb\u4e86 GPU \u5c06 YUV \u8f6c\u6362\u4e3a RGB 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0);}#mermaid-svg-amkmHaw0x5wayqWd .cluster-label span p{background-color:transparent;}#mermaid-svg-amkmHaw0x5wayqWd .label text,#mermaid-svg-amkmHaw0x5wayqWd span{fill:#333;color:#333;}#mermaid-svg-amkmHaw0x5wayqWd .node rect,#mermaid-svg-amkmHaw0x5wayqWd .node circle,#mermaid-svg-amkmHaw0x5wayqWd .node ellipse,#mermaid-svg-amkmHaw0x5wayqWd .node polygon,#mermaid-svg-amkmHaw0x5wayqWd .node path{fill:#FFFFFF;stroke:hsl(40.5882352941, 60%, 83.3333333333%);stroke-width:1px;}#mermaid-svg-amkmHaw0x5wayqWd .rough-node .label text,#mermaid-svg-amkmHaw0x5wayqWd .node .label text,#mermaid-svg-amkmHaw0x5wayqWd .image-shape .label,#mermaid-svg-amkmHaw0x5wayqWd .icon-shape .label{text-anchor:middle;}#mermaid-svg-amkmHaw0x5wayqWd .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-amkmHaw0x5wayqWd .rough-node .label,#mermaid-svg-amkmHaw0x5wayqWd .node .label,#mermaid-svg-amkmHaw0x5wayqWd .image-shape .label,#mermaid-svg-amkmHaw0x5wayqWd .icon-shape .label{text-align:center;}#mermaid-svg-amkmHaw0x5wayqWd .node.clickable{cursor:pointer;}#mermaid-svg-amkmHaw0x5wayqWd .root .anchor path{fill:#0b0b0b!important;stroke-width:0;stroke:#0b0b0b;}#mermaid-svg-amkmHaw0x5wayqWd .arrowheadPath{fill:#0b0b0b;}#mermaid-svg-amkmHaw0x5wayqWd .edgePath .path{stroke:#0b0b0b;stroke-width:2.0px;}#mermaid-svg-amkmHaw0x5wayqWd .flowchart-link{stroke:#0b0b0b;fill:none;}#mermaid-svg-amkmHaw0x5wayqWd .edgeLabel{background-color:#FFFFFF;text-align:center;}#mermaid-svg-amkmHaw0x5wayqWd .edgeLabel p{background-color:#FFFFFF;}#mermaid-svg-amkmHaw0x5wayqWd .edgeLabel rect{opacity:0.5;background-color:#FFFFFF;fill:#FFFFFF;}#mermaid-svg-amkmHaw0x5wayqWd .labelBkg{background-color:rgba(255, 255, 255, 0.5);}#mermaid-svg-amkmHaw0x5wayqWd .cluster rect{fill:#FFFFFF;stroke:#B0C4DE;stroke-width:1px;}#mermaid-svg-amkmHaw0x5wayqWd .cluster text{fill:rgb(8.5000000002, 5.7500000001, 0);}#mermaid-svg-amkmHaw0x5wayqWd .cluster span{color:rgb(8.5000000002, 5.7500000001, 0);}#mermaid-svg-amkmHaw0x5wayqWd div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;font-size:12px;background:hsl(220.5882352941, 100%, 98.3333333333%);border:1px solid hsl(220.5882352941, 60%, 88.3333333333%);border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-amkmHaw0x5wayqWd .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-amkmHaw0x5wayqWd rect.text{fill:none;stroke-width:0;}#mermaid-svg-amkmHaw0x5wayqWd .icon-shape,#mermaid-svg-amkmHaw0x5wayqWd .image-shape{background-color:#FFFFFF;text-align:center;}#mermaid-svg-amkmHaw0x5wayqWd .icon-shape p,#mermaid-svg-amkmHaw0x5wayqWd .image-shape p{background-color:#FFFFFF;padding:2px;}#mermaid-svg-amkmHaw0x5wayqWd .icon-shape rect,#mermaid-svg-amkmHaw0x5wayqWd .image-shape rect{opacity:0.5;background-color:#FFFFFF;fill:#FFFFFF;}#mermaid-svg-amkmHaw0x5wayqWd .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-amkmHaw0x5wayqWd .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-amkmHaw0x5wayqWd :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u786c\u4ef6 Overlay \u8def\u5f84&#xff08;\u4f18\u5316&#xff09;<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u666e\u901a\u5408\u6210\u8def\u5f84<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/p>\n<p>\u76f4\u63a5\u76f4\u901a<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"edgeLabel\"><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u7a97\u53e3 A<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>GPU \u5408\u6210<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u7a97\u53e3 B<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Framebuffer<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Primary Plane<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u89c6\u9891 Surface&#xff08;NV12&#xff09;<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Overlay Plane<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>UI \u754c\u9762<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>GPU \u5408\u6210<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>Primary Plane<\/p>\n<p><\/span><\/p>\n<p>         <span class=\"nodeLabel\"><\/p>\n<p>\u663e\u793a\u63a7\u5236\u5668\u6df7\u5408<\/p>\n<p><\/span><\/p>\n<h3>6.3 \u73b0\u4ee3\u663e\u793a\u7279\u6027<\/h3>\n<ul>\n<li>VRR&#xff08;Variable Refresh Rate&#xff0c;\u53ef\u53d8\u5237\u65b0\u7387&#xff09;&#xff1a;\u5408\u6210\u5668\u53ef\u52a8\u6001\u8c03\u6574\u663e\u793a\u5668\u7684\u5237\u65b0\u95f4\u9694&#xff08;VBlank \u65f6\u95f4&#xff09;&#xff0c;\u4f7f\u5176\u4e0e\u6e38\u620f\u6e32\u67d3\u5e27\u7387\u540c\u6b65&#xff0c;\u6d88\u9664\u753b\u9762\u6495\u88c2\u5e76\u51cf\u5c11\u5361\u987f\u3002<\/li>\n<li>Tearing Control&#xff08;wp_tearing_control&#xff09;&#xff1a;\u9488\u5bf9\u7ade\u6280\u6e38\u620f\u7684\u4f4e\u5ef6\u8fdf\u9700\u6c42&#xff0c;\u534f\u8bae\u5141\u8bb8\u5ba2\u6237\u7aef\u8bf7\u6c42\u201c\u5141\u8bb8\u6495\u88c2\u201d\u3002\u6b64\u65f6\u5408\u6210\u5668\u4f7f\u7528 DRM_MODE_PAGE_FLIP_ASYNC&#xff0c;\u7acb\u5373\u5c06\u65b0\u5e27\u9001\u5f80\u5c4f\u5e55&#xff0c;\u4e0d\u518d\u7b49\u5f85\u5782\u76f4\u540c\u6b65\u4fe1\u53f7\u3002<\/li>\n<li>HDR \u4e0e\u8272\u5f69\u7ba1\u7406&#xff1a;\u5f53\u524d Wayland \u5f00\u53d1\u7684\u70ed\u70b9\u65b9\u5411\u3002\u65b0\u534f\u8bae\u5141\u8bb8\u5ba2\u6237\u7aef\u9644\u5e26\u8272\u5f69\u7a7a\u95f4&#xff08;Color Space&#xff09;\u548c HDR \u5143\u6570\u636e&#xff0c;\u5408\u6210\u5668\u8d1f\u8d23\u5c06\u4e0d\u540c\u8272\u5f69\u7a7a\u95f4\u7684\u5185\u5bb9&#xff08;\u5982 sRGB \u6d4f\u89c8\u5668 &#043; HDR \u7535\u5f71&#xff09;\u6b63\u786e\u6620\u5c04\u5230\u663e\u793a\u5668\u8272\u57df\u4e2d\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u7279\u6027\u7684\u53ef\u7528\u6027&#xff0c;\u53d6\u51b3\u4e8e\u5408\u6210\u5668\u5b9e\u73b0\u3001\u5185\u6838\u7248\u672c\u53ca\u663e\u5361\u9a71\u52a8\u7684\u652f\u6301\u7a0b\u5ea6\u3002<\/p>\n<h2>7. XWayland<\/h2>\n<p>XWayland \u662f\u7279\u6b8a\u7684 X Server&#xff1a;\u5b83\u4e0d\u76f4\u63a5\u8f93\u51fa\u5230\u786c\u4ef6&#xff0c;\u800c\u662f\u4f5c\u4e3a Wayland \u5ba2\u6237\u7aef&#xff0c;\u5c06\u81ea\u8eab\u201c\u5c4f\u5e55\u201d\u4f5c\u4e3a Surface \u63d0\u4ea4\u7ed9\u5408\u6210\u5668&#xff0c;\u5145\u5f53 X11 \u5e94\u7528\u4e0e Wayland \u5408\u6210\u5668\u7684\u201c\u7ffb\u8bd1\u5b98\u201d\u3002<\/p>\n<ul>\n<li>HiDPI \u95ee\u9898&#xff1a;X11 \u6838\u5fc3\u534f\u8bae\u4e0d\u652f\u6301\u5206\u6570\u7f29\u653e\u3002\u5728 150% \u7f29\u653e\u7684\u5c4f\u5e55\u4e0a&#xff0c;\u5408\u6210\u5668\u901a\u5e38\u53ea\u80fd\u5c06 XWayland \u7a97\u53e3\u6309 100% \u6e32\u67d3\u540e\u5f3a\u5236\u62c9\u4f38&#xff0c;\u5bfc\u81f4\u5b57\u4f53\u6a21\u7cca&#xff08;Wayland \u539f\u751f\u5e94\u7528\u901a\u8fc7 wp-fractional-scale-v1 \u652f\u6301\u5b8c\u7f8e\u7684\u5206\u6570\u7f29\u653e&#xff09;\u3002<\/li>\n<li>\u5b89\u5168\u6f0f\u6d1e&#xff1a;\u5c3d\u7ba1 Wayland \u9694\u79bb\u4e86\u539f\u751f\u5ba2\u6237\u7aef&#xff0c;\u4f46\u8fde\u63a5\u5230\u540c\u4e00 XWayland \u5b9e\u4f8b\u7684\u6240\u6709 X11 \u7a0b\u5e8f\u4e4b\u95f4\u4ecd\u65e0\u9694\u79bb&#xff0c;\u6076\u610f X11 \u7a0b\u5e8f\u4ecd\u53ef\u6293\u53d6\u5176\u4ed6 X11 \u7a0b\u5e8f\u7684\u8f93\u5165\u3002<\/li>\n<\/ul>\n<h2>8. \u5178\u578b\u5408\u6210\u5668\u5b9e\u73b0\u5bf9\u6bd4<\/h2>\n<table>\n<tr>\u7279\u6027WestonMutter&#xff08;GNOME&#xff09;KWin&#xff08;KDE&#xff09;wlroots&#xff08;Sway\/Hyprland&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>\u5b9a\u4f4d<\/td>\n<td>\u5b98\u65b9\u53c2\u8003\u5b9e\u73b0&#xff0c;\u6559\u5b66\u7528\u9014<\/td>\n<td>\u6df1\u5ea6\u96c6\u6210&#xff0c;\u7528\u6237\u4f53\u9a8c\u4f18\u5148<\/td>\n<td>\u529f\u80fd\u6700\u5f3a&#xff0c;\u914d\u7f6e\u9879\u6781\u591a<\/td>\n<td>\u6a21\u5757\u5316\u5e93&#xff0c;\u6784\u5efa\u5408\u6210\u5668\u7684\u6846\u67b6<\/td>\n<\/tr>\n<tr>\n<td>\u67b6\u6784<\/td>\n<td>\u63d2\u4ef6\u5f0f&#xff0c;libweston<\/td>\n<td>\u5355\u8fdb\u7a0b&#xff0c;\u96c6\u6210 JS \u5f15\u64ce&#xff08;GJS&#xff09;<\/td>\n<td>C&#043;&#043;\/Qt&#xff0c;\u590d\u6742\u7684\u573a\u666f\u56fe<\/td>\n<td>\u6781\u7b80&#xff0c;\u63d0\u4f9b\u6a21\u5757\u79ef\u6728<\/td>\n<\/tr>\n<tr>\n<td>\u6e32\u67d3<\/td>\n<td>Pixman \/ GL<\/td>\n<td>OpenGL&#xff08;Cogl\/Clutter&#xff09;<\/td>\n<td>OpenGL \/ QPainter<\/td>\n<td>OpenGL \/ Vulkan<\/td>\n<\/tr>\n<tr>\n<td>\u4f18\u52bf<\/td>\n<td>\u4ee3\u7801\u6e05\u6670&#xff0c;\u7a33\u5b9a<\/td>\n<td>\u52a8\u753b\u6d41\u7545&#xff0c;\u89e6\u6478\u624b\u52bf\u597d&#xff0c;\u8272\u5f69\u7ba1\u7406\u5b8c\u5584<\/td>\n<td>\u684c\u9762\u7279\u6548\u4e30\u5bcc&#xff0c;\u811a\u672c\u5316\u80fd\u529b\u5f3a<\/td>\n<td>\u751f\u6001\u57fa\u77f3&#xff0c;\u50ac\u751f\u4e86 Sway\u3001Hyprland\u3001Wayfire \u7b49\u5408\u6210\u5668<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>9. \u8c03\u8bd5\u4e0e\u6027\u80fd\u4f18\u5316<\/h2>\n<h3>9.1 \u534f\u8bae\u8c03\u8bd5<\/h3>\n<ul>\n<li>WAYLAND_DEBUG&#061;1&#xff1a;\u57fa\u7840\u8c03\u8bd5\u5de5\u5177\u3002\u5728\u7ec8\u7aef\u6267\u884c WAYLAND_DEBUG&#061;1 alacritty&#xff0c;\u53ef\u67e5\u770b Socket \u4e0a\u4f20\u8f93\u7684\u6587\u672c\u5316\u534f\u8bae\u65e5\u5fd7&#xff0c;\u91cd\u70b9\u89c2\u5bdf buffer.attach\u3001surface.commit \u7684\u9891\u7387\u53ca frame.callback \u7684\u8fd4\u56de\u53ca\u65f6\u6027\u3002<\/li>\n<li>wev&#xff08;Wayland Event Viewer&#xff09;&#xff1a;\u7c7b\u4f3c X11 \u7684 xev&#xff0c;\u7528\u4e8e\u8c03\u8bd5\u8f93\u5165\u4e8b\u4ef6&#xff0c;\u67e5\u770b\u952e\u76d8\u6309\u952e\u5bf9\u5e94\u7684 Scancode \u548c Keysym\u3002<\/li>\n<li>wayland-info&#xff1a;\u5217\u51fa\u5f53\u524d\u5408\u6210\u5668\u652f\u6301\u7684\u6240\u6709\u5168\u5c40\u63a5\u53e3\u548c\u6269\u5c55\u534f\u8bae\u3002<\/li>\n<\/ul>\n<h3>9.2 \u6e32\u67d3\u8c03\u8bd5<\/h3>\n<ul>\n<li>Gammaray&#xff08;Qt&#xff09; \/ GtkInspector&#xff1a;\u67e5\u770b\u5e94\u7528\u7a0b\u5e8f\u5185\u90e8\u7684\u63a7\u4ef6\u6811\u3002<\/li>\n<li>RenderDoc&#xff1a;\u622a\u53d6\u5355\u5e27\u753b\u9762&#xff0c;\u5206\u6790 GPU \u5177\u4f53\u7684\u7ed8\u5236\u6307\u4ee4&#xff08;Draw Calls&#xff09;\u3002<\/li>\n<\/ul>\n<h3>9.3 \u6027\u80fd\u8ffd\u8e2a<\/h3>\n<p>gpuvis \u662f\u529f\u80fd\u6700\u5f3a\u7684\u53ef\u89c6\u5316\u5de5\u5177&#xff0c;\u7ed3\u5408 trace-cmd \u53ef\u5728\u65f6\u95f4\u8f74\u4e0a\u540c\u6b65\u663e\u793a&#xff1a;<\/p>\n<ul>\n<li>CPU \u8fdb\u7a0b\u8c03\u5ea6&#xff08;App\/\u5408\u6210\u5668\u7684\u8fd0\u884c\u65f6\u6bb5&#xff09;\u3002<\/li>\n<li>GPU \u4efb\u52a1\u961f\u5217&#xff08;Render\/Compute \u8017\u65f6&#xff09;\u3002<\/li>\n<li>DRM VBlank \u4fe1\u53f7&#xff08;\u5c4f\u5e55\u5237\u65b0\u5fc3\u8df3&#xff09;\u3002<\/li>\n<li>Wayland \u4e8b\u4ef6\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7 gpuvis \u53ef\u76f4\u89c2\u5b9a\u4f4d\u6027\u80fd\u74f6\u9888&#xff1a;\u662f\u5ba2\u6237\u7aef\u6e32\u67d3\u8fc7\u6162\u62d6\u7d2f\u5e27\u7387&#xff0c;\u8fd8\u662f\u5408\u6210\u5668\u63d0\u4ea4\u5ef6\u8fdf\u5bfc\u81f4\u9519\u8fc7 VBlank\u3002<\/p>\n<h2>10. \u603b\u7ed3<\/h2>\n<p>\u663e\u793a\u670d\u52a1\u5668\u7684\u6f14\u8fdb\u53f2&#xff0c;\u662f\u4e00\u90e8\u8ffd\u6c42\u4f4e\u5ef6\u8fdf\u3001\u9ad8\u6548\u7387\u3001\u5f3a\u9694\u79bb\u7684\u7cfb\u7edf\u5de5\u7a0b\u53f2&#xff1a;<\/p>\n<ul>\n<li>\u8fc7\u53bb&#xff1a;X11 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