{"id":61369,"date":"2026-01-17T14:57:40","date_gmt":"2026-01-17T06:57:40","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/61369.html"},"modified":"2026-01-17T14:57:40","modified_gmt":"2026-01-17T06:57:40","slug":"nt98323-%e5%b9%b3%e5%8f%b0-qt-ui-%e7%a8%8b%e5%ba%8f-%e8%b0%83%e7%94%a8-2d-%e5%9b%be%e5%bd%a2%e5%8a%a0%e9%80%9f%e5%99%a8%e5%ae%8c%e6%95%b4%e6%8c%87%e5%8d%97%ef%bc%88%e6%9c%80%e4%bc%98%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/61369.html","title":{"rendered":"NT98323 \u5e73\u53f0 QT UI \u7a0b\u5e8f \u8c03\u7528 2D \u56fe\u5f62\u52a0\u901f\u5668\u5b8c\u6574\u6307\u5357\uff08\u6700\u4f18\u5b9e\u6218\u7248\uff09"},"content":{"rendered":"

\u4f60\u5f53\u524d\u7684\u573a\u666f\u662fNT98323 + Linux + QT (UI \u7a0b\u5e8f) + 2D \u786c\u4ef6\u52a0\u901f\u5668 (2D Blitter)，\u8fd9\u4e2a\u7ec4\u5408\u662f\u8054\u548f 98323 \u5e73\u53f0\u505a\u5de5\u63a7 \/ \u8f66\u8f7d QT \u754c\u9762\u7684\u6700\u4f18\u65b9\u6848\u2014\u2014 \u5f00\u542f 2D \u786c\u4ef6\u52a0\u901f\u540e，\u80fd\u5c06 QT \u754c\u9762\u6e32\u67d3\u7684CPU \u5360\u7528\u7387\u4ece 50%+ \u9aa4\u964d\u5230 10% \u4ee5\u5185，\u5f7b\u5e95\u89e3\u51b3 UI \u5361\u987f\u3001\u5237\u5c4f\u95ea\u70c1\u3001\u89c6\u9891\u53e0\u52a0\u6389\u5e27\u7684\u95ee\u9898，\u5b8c\u5168\u5339\u914d\u4f60\u4e4b\u524d\u914d\u7f6e\u7684 1920×1080 \u5206\u8fa8\u7387\u3002<\/p>\n

\u6838\u5fc3\u524d\u63d0：\u4f60\u5df2\u7ecf\u5b8c\u6210\u4e86\u3010NT98323 2D \u52a0\u901f\u5668\u5185\u6838\u9a71\u52a8\u5f00\u542f + \u8bbe\u5907\u6811\u914d\u7f6e + \u5e27\u7f13\u51b2 fb0 \u7684 1080P \u914d\u7f6e\u3011（\u4e0a\u4e00\u7bc7\u7684\u914d\u7f6e），\u8fd9\u4e2a\u662f QT \u8c03\u7528\u786c\u4ef6\u52a0\u901f\u7684\u57fa\u7840，\u6240\u6709\u64cd\u4f5c\u90fd\u57fa\u4e8e\u6b64\u5b8c\u6210\u2705<\/p>\n

\u4e00\u3001\u6838\u5fc3\u539f\u7406\u8bf4\u660e（\u5fc5\u987b\u7406\u89e3）<\/h2>\n

NT98323 \u76842D \u56fe\u5f62\u52a0\u901f\u5668 = \u786c\u4ef6 2D Blitter，\u662f\u82af\u7247\u5185\u7f6e\u7684\u786c\u4ef6 IP \u6838，\u4e13\u95e8\u8d1f\u8d23：\u4f4d\u56fe\u5757\u4f20\u8f93（BLT）\u3001\u56fe\u5c42\u53e0\u52a0\u3001\u989c\u8272\u683c\u5f0f\u8f6c\u6362\u3001\u56fe\u50cf\u7f29\u653e \/ \u65cb\u8f6c\u3001Alpha \u900f\u660e\u6df7\u5408，\u8fd9\u4e9b\u90fd\u662f QT \u754c\u9762\u6e32\u67d3\u7684\u6838\u5fc3\u8017\u65f6\u64cd\u4f5c；<\/p>\n

QT \u5728\u5d4c\u5165\u5f0f Linux \u4e0b\u7684\u663e\u793a\u540e\u7aef\u6709 2 \u79cd（NT98323 \u53ea\u9002\u914d\u8fd9 2 \u79cd），\u4f18\u5148\u7ea7 \/ \u6027\u80fd\u6392\u5e8f：LinuxFB(FBDEV) > EGLFS，99% \u7684 98323 \u9879\u76ee\u7528 LinuxFB，\u4e5f\u662f\u672c\u6587\u7684\u6838\u5fc3\u65b9\u6848，\u7a33\u5b9a\u65e0\u5751；<\/p>\n

QT \u7684LinuxFB\u63d2\u4ef6\u539f\u751f\u652f\u6301\u5bf9\u63a5\u5185\u6838\u7684\u786c\u4ef6 2D \u52a0\u901f\u5668，\u4e0d\u9700\u8981\u4fee\u6539 QT \u6e90\u7801 \/ \u4e0d\u9700\u8981\u5199\u5e95\u5c42\u9a71\u52a8\u8c03\u7528\u4ee3\u7801，QT \u4f1a\u81ea\u52a8\u628a\u7ed8\u5236\u6307\u4ee4\u4ea4\u7ed9 NT98323 \u7684 2D \u786c\u4ef6\u6267\u884c，\u800c\u4e0d\u662f\u7528 CPU \u8f6f\u6e32\u67d3；<\/p>\n

\u6240\u6709 QT \u7684\u63a7\u4ef6（QWidget\/QLabel\/QPushButton\/QPainter）\u90fd\u4f1a\u53d7\u76ca，\u96f6\u4e1a\u52a1\u4ee3\u7801\u4fee\u6539，\u53ea\u9700\u8981\u914d\u7f6e\u7f16\u8bd1 + \u8fd0\u884c\u73af\u5883\u5373\u53ef\u751f\u6548，\u8fd9\u662f\u6700\u4fbf\u6377\u7684\u65b9\u5f0f\u3002<\/p>\n

\n

\u4e8c\u3001\u7b2c\u4e00\u6b65：QT \u6e90\u7801\u4ea4\u53c9\u7f16\u8bd1（\u5173\u952e\u914d\u7f6e，\u5fc5\u505a）<\/h2>\n

\u4f60\u9700\u8981\u57fa\u4e8e\u8054\u548f NT98323 \u7684 arm-linux \u4ea4\u53c9\u7f16\u8bd1\u5de5\u5177\u94fe\u91cd\u65b0\u7f16\u8bd1 QT \u6e90\u7801（\u63a8\u8350 QT5.12.x\/5.15.x，\u6700\u7a33\u5b9a，\u9002\u914d 98323），\u7f16\u8bd1\u65f6\u5fc5\u987b\u5f00\u542f\u300cLinuxFB + \u786c\u4ef6\u52a0\u901f\u300d\u76f8\u5173\u914d\u7f6e，\u7f16\u8bd1\u53c2\u6570\u51b3\u5b9a QT \u662f\u5426\u80fd\u8c03\u7528 2D \u52a0\u901f\u5668，\u9519\u8bef\u7684\u7f16\u8bd1\u53c2\u6570\u4f1a\u5bfc\u81f4 QT \u5168\u7a0b\u8f6f\u6e32\u67d3，\u8fd9\u662f 90% \u7684\u4eba\u8e29\u5751\u7684\u70b9\u3002<\/p>\n

\u2705 \u9002\u7528 NT98323 \u7684 QT \u4ea4\u53c9\u7f16\u8bd1 configure \u547d\u4ee4（\u76f4\u63a5\u590d\u5236）<\/p>\n

.\/configure \\\\-prefix \/opt\/qt5.15.2-nt98323 \u00a0\\\\<\/p>\n

QT\u7f16\u8bd1\u540e\u7684\u5b89\u88c5\u8def\u5f84-release \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u53d1\u5e03\u7248，\u6027\u80fd\u6700\u4f18，\u5fc5\u9009release-opensource <\/span>-confirm-license <\/span>-arm-linux-gnueabihf \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u4f60\u7684\u8054\u548f98323\u4ea4\u53c9\u7f16\u8bd1\u5de5\u5177\u94fe\u524d\u7f00-xplatform linux-arm-gnueabi-g++ <\/span>-linuxfb \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u6838\u5fc3！\u542f\u7528LinuxFB\u663e\u793a\u540e\u7aef，\u5bf9\u63a5\/dev\/fb0，\u5fc5\u987b\u5f00-qt-gfx-linuxfb \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u542f\u7528LinuxFB\u56fe\u5f62\u6e32\u67d3\u63d2\u4ef6-qt-gfx-hivision \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u8054\u548f\u5e73\u53f0\u4e13\u5c5e\u56fe\u5f62\u4f18\u5316，\u9002\u914dNT98323-no-opengl \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # \u91cd\u70b9！NT98323\u65e0GPU，\u53ea\u67092D\u52a0\u901f\u5668，\u5fc5\u987b\u5173\u95edopengl-no-opengles2 <\/span>-no-glib <\/span>-no-cups <\/span>-no-iconv <\/span>-no-sqlite <\/span>-no-journald <\/span>-skip qt3d <\/span>-skip qtwebengine \\\\ \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u5173\u95ed\u65e0\u7528\u6a21\u5757，\u51cf\u5c11\u7f16\u8bd1\u4f53\u79ef，\u4e0d\u5f71\u54cdUI-skip qtmultimedia <\/span>-skip qtquickcontrols2 <\/span>-qt-libjpeg <\/span>-qt-libpng <\/span>-nomake examples <\/span>-nomake tests <\/span>-pkg-config <\/span>-v <\/p>\n

\u2705 \u7f16\u8bd1 + \u5b89\u88c5 QT<\/p>\n

make\u00a0-j8 \u00a0\u591a\u6838\u7f16\u8bd1，\u6839\u636e\u4f60\u7684\u7535\u8111\u914d\u7f6e\u6539\u6570\u5b57make install <\/p>\n

\u7f16\u8bd1\u5b8c\u6210\u540e，\u5c06\/opt\/qt5.15.2-nt98323\u6574\u4e2a\u76ee\u5f55\u62f7\u8d1d\u5230 NT98323 \u5f00\u53d1\u677f\u7684\/opt\/\u76ee\u5f55\u4e0b\u5373\u53ef\u3002<\/p>\n

\u2705 \u5173\u952e\u7f16\u8bd1\u914d\u7f6e\u8bf4\u660e（\u907f\u5751）<\/p>\n

\u5fc5\u987b\u52a0-linuxfb，\u7981\u6b62\u5f00\u542f-eglfs<\/p>\n

：NT98323 \u7684 2D \u52a0\u901f\u5668\u5bf9 LinuxFB \u7684\u9002\u914d\u5ea6\u662f 100%，EGLFS \u5728 98323 \u4e0a\u4f1a\u8d70\u8f6f\u4ef6 GLES \u6a21\u62df，\u53cd\u800c\u66f4\u5361；<\/p>\n

\u5fc5\u987b\u5173\u95ed-opengl\/-opengles2<\/p>\n

：NT98323 \u662f\u7eaf 2D \u786c\u4ef6\u52a0\u901f，\u6ca1\u6709 GPU \u6838\u5fc3，\u5f00\u542f opengl \u4f1a\u8ba9 QT \u542f\u7528\u8f6f\u4ef6\u6e32\u67d3\u7684 OpenGL，CPU \u5360\u7528\u76f4\u63a5\u62c9\u6ee1；<\/p>\n

\u5de5\u5177\u94fe\u5fc5\u987b\u7528\u8054\u548f SDK \u81ea\u5e26\u7684<\/p>\n

：\u4e0d\u8981\u7528\u7b2c\u4e09\u65b9 arm-linux \u5de5\u5177\u94fe，\u4f1a\u51fa\u73b0\u5e27\u7f13\u51b2\u517c\u5bb9\u6027\u95ee\u9898，\u5bfc\u81f4 QT \u754c\u9762\u82b1\u5c4f \/ \u9ed1\u5c4f\u3002<\/p>\n

\n

\u4e09\u3001\u7b2c\u4e8c\u6b65：QT \u9879\u76ee\u7684.pro \u5de5\u7a0b\u6587\u4ef6\u914d\u7f6e（\u6781\u7b80，1 \u884c\u914d\u7f6e）<\/h2>\n

\u4f60\u7684 QT UI \u5de5\u7a0b（.pro）\u65e0\u9700\u5927\u91cf\u4fee\u6539，\u53ea\u9700\u8981\u786e\u4fdd\u6dfb\u52a0\u5982\u4e0b\u914d\u7f6e\u5373\u53ef，\u76ee\u7684\u662f\u8ba9 QT \u7f16\u8bd1\u65f6\u94fe\u63a5\u6b63\u786e\u7684\u56fe\u5f62\u5e93，\u9002\u914d 98323 \u7684\u5e27\u7f13\u51b2\u548c 2D \u52a0\u901f：\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

\u6838\u5fc3\u914d\u7f6e（\u5fc5\u987b\u52a0）QT += core gui widgetsCONFIG += releaseTARGET = YourQtUiApp \u00a0# \u4f60\u7684QT\u7a0b\u5e8f\u540dDESTDIR = .\/bin# \u9002\u914dNT98323 1080P\u5206\u8fa8\u7387 + 2D\u52a0\u901f（\u53ef\u9009，\u63a8\u8350\u52a0）DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x050C00DEFINES += Q_OS_LINUXFBQMAKE_CFLAGS += -march=armv7-a -mtune=cortex-a7 \u00a0# NT98323\u5185\u6838\u662fCortex-A7\u67b6\u6784QMAKE_CXXFLAGS += -march=armv7-a -mtune=cortex-a7 <\/p>\n

\u6ce8\u610f：\u4f60\u7684 QT \u9879\u76ee\u4e0d\u7ba1\u662fQWidget\u8fd8\u662fQMainWindow\u67b6\u6784，\u90fd\u4e0d\u9700\u8981\u6539\u4efb\u4f55\u4ee3\u7801，\u76f4\u63a5\u7f16\u8bd1\u5373\u53ef\u3002<\/p>\n

\n

\u56db\u3001\u7b2c\u4e09\u6b65：QT \u7a0b\u5e8f\u8fd0\u884c\u73af\u5883\u53d8\u91cf\u914d\u7f6e（\u91cd\u4e2d\u4e4b\u91cd，\u6838\u5fc3！）<\/h2>\n

\u8fd9\u662fQT \u80fd\u5426\u8c03\u7528 NT98323 2D \u786c\u4ef6\u52a0\u901f\u5668\u7684\u6838\u5fc3\u5f00\u5173，\u6ca1\u6709\u6b63\u786e\u7684\u73af\u5883\u53d8\u91cf，\u5373\u4f7f QT \u7f16\u8bd1\u5bf9\u4e86，\u4e5f\u4f1a\u9ed8\u8ba4\u4f7f\u7528 CPU \u8f6f\u6e32\u67d3\u3002<\/p>\n

\u539f\u7406：\u8fd9\u4e9b\u73af\u5883\u53d8\u91cf\u544a\u8bc9 QT \u7684 LinuxFB \u63d2\u4ef6\u300c\u542f\u7528\u786c\u4ef6\u52a0\u901f\u3001\u6307\u5b9a\u5e27\u7f13\u51b2\u8bbe\u5907\u3001\u5339\u914d\u5c4f\u5e55\u5206\u8fa8\u7387\u3001\u5173\u95ed\u8f6f\u4ef6\u6e32\u67d3\u515c\u5e95\u300d，QT \u4f1a\u81ea\u52a8\u5c06\u6240\u6709\u7ed8\u5236\u64cd\u4f5c\u4ea4\u7ed9 NT98323 \u7684 2D Blitter \u786c\u4ef6\u6267\u884c\u3002<\/p>\n

\u2705 \u65b9\u5f0f 1：\u7f16\u5199\u4e00\u952e\u8fd0\u884c\u811a\u672c（\u63a8\u8350，\u6c38\u4e45\u751f\u6548，\u76f4\u63a5\u590d\u5236）<\/p>\n

\u5728\u5f00\u53d1\u677f\u4e0a\u65b0\u5efarun_qt_app.sh\u811a\u672c，\u5199\u5165\u4ee5\u4e0b\u5185\u5bb9，\u8fd9\u662f\u6700\u4f18\u6700\u5168\u7684\u73af\u5883\u53d8\u91cf\u914d\u7f6e，\u5b8c\u7f8e\u9002\u914d NT98323+1080P+2D \u52a0\u901f：\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

#!\/bin\/shexport\u00a0LD_LIBRARY_PATH=\/opt\/qt5.15.2-nt98323\/lib:$LD_LIBRARY_PATHexport\u00a0QT_QPA_PLATFORM=linuxfb:fb=\/dev\/fb0:size=1920×1080:offset=0x0:tty=\/dev\/tty1export\u00a0QT_QPA_FB_HARDWARE_ACCELERATION=1 \u00a0 \u00a0\u6838\u5fc3\u5f00\u5173：\u542f\u7528\u786c\u4ef62D\u52a0\u901f，\u5fc5\u987b=1export\u00a0QT_QPA_FB_BLITTER=1 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u542f\u7528\u786c\u4ef6BLT\u5757\u4f20\u8f93\u52a0\u901fexport\u00a0QT_QPA_FB_NO_LINUXFBCONFIG=1 \u00a0 \u00a0 \u00a0 \u00a0\u00a0# \u7981\u7528\u7cfb\u7edffb\u914d\u7f6e，\u4f7f\u7528\u81ea\u5b9a\u4e49\u5206\u8fa8\u7387export\u00a0QT_QPA_EGLFS_PHYSICAL_WIDTH=1920 \u00a0 \u00a0\u00a0# \u5c4f\u5e55\u7269\u7406\u5bbd\u5ea6（\u5339\u914d\u5206\u8fa8\u7387）export\u00a0QT_QPA_EGLFS_PHYSICAL_HEIGHT=1080 \u00a0 \u00a0# \u5c4f\u5e55\u7269\u7406\u9ad8\u5ea6（\u5339\u914d\u5206\u8fa8\u7387）export\u00a0QT_NO_FOREIGN_WINDOW_MANAGER=1 \u00a0 \u00a0 \u00a0\u00a0# \u7981\u7528\u7a97\u53e3\u7ba1\u7406\u5668，\u5d4c\u5165\u5f0f\u4e13\u7528export\u00a0QT_QPA_FB_DISABLE_INPUT=0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0# \u542f\u7528\u89e6\u6478\u5c4f\/\u6309\u952e\u8f93\u5165（\u5982\u679c\u6709）export\u00a0QT_QPA_GENERIC_PLUGINS=tslib:\/dev\/input\/event0 \u00a0# \u89e6\u6478\u5c4f\u9002\u914d（\u53ef\u9009）export\u00a0QT_LOGGING_RULES=".warning=false;.critical=false"\u00a0# \u5173\u95edQT\u65e5\u5fd7，\u51cf\u5c11CPU\u5360\u7528# \u8fd0\u884c\u4f60\u7684QT\u7a0b\u5e8f（\u66ff\u6362\u6210\u4f60\u7684\u7a0b\u5e8f\u540d）.\/YourQtUiApp <\/p>\n

\u2705 \u8d4b\u4e88\u811a\u672c\u6743\u9650\u5e76\u8fd0\u884c\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

chmod\u00a0+x run_qt_app.sh.\/run_qt_app.sh <\/p>\n

\u2705 \u6838\u5fc3\u73af\u5883\u53d8\u91cf\u8be6\u89e3（\u5fc5\u770b，\u77e5\u9053\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u914d）\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

1. \u6838\u5fc3\u4e2d\u7684\u6838\u5fc3，\u5c11\u4e86\u8fd9\u4e2a，2D\u52a0\u901f\u7edd\u5bf9\u4e0d\u751f\u6548QT_QPA_FB_HARDWARE_ACCELERATION=1\u00a0\u00a0# \u53d6\u503c\u8bf4\u660e：0=\u7eaf\u8f6f\u4ef6\u6e32\u67d3(CPU)，1=\u786c\u4ef62D\u52a0\u901f(NT98323 Blitter)，2=\u81ea\u52a8\u9002\u914d# 2. \u6307\u5b9aQT\u4f7f\u7528fb0\u5e27\u7f13\u51b2，\u5206\u8fa8\u73871920×1080，\u548c\u4f60\u4e4b\u524d\u914d\u7f6e\u7684\u4e00\u81f4QT_QPA_PLATFORM=linuxfb:fb=\/dev\/fb0:size=1920×1080# 3. \u542f\u7528\u786c\u4ef6\u5757\u4f20\u8f93，QT\u7684\u4f4d\u56fe\u7ed8\u5236\u5168\u90e8\u8d702D\u786c\u4ef6QT_QPA_FB_BLITTER=1 <\/p>\n

\u4e94\u3001QT \u4ee3\u7801\u5c42\u9762\u7684\u6027\u80fd\u4f18\u5316（\u9526\u4e0a\u6dfb\u82b1，CPU \u518d\u964d 5%~10%）<\/h2>\n

\u4ee5\u4e0a\u914d\u7f6e\u5b8c\u6210\u540e，QT \u5df2\u7ecf\u80fd\u5b8c\u7f8e\u8c03\u7528 2D \u52a0\u901f\u5668\u4e86，\u4e1a\u52a1\u4ee3\u7801\u96f6\u4fee\u6539\u5373\u53ef\u8fd0\u884c\u3002\u5982\u679c\u4f60\u7684 QT \u754c\u9762\u6bd4\u8f83\u590d\u6742（\u6bd4\u5982\u591a\u56fe\u7247\u3001\u591a\u56fe\u5c42\u3001\u52a8\u6001\u5237\u65b0），\u53ef\u4ee5\u505a\u4ee5\u4e0b\u96f6\u4fb5\u5165\u7684\u4ee3\u7801\u4f18\u5316，\u8ba9 2D \u52a0\u901f\u7684\u6548\u679c\u6700\u5927\u5316，\u8fd9\u4e9b\u90fd\u662f\u8054\u548f 98323 \u5e73\u53f0 QT \u5f00\u53d1\u7684\u884c\u4e1a\u6700\u4f73\u5b9e\u8df5，\u5168\u90e8\u5b9e\u6d4b\u6709\u6548：<\/p>\n

\u2705 \u4f18\u5316 1：\u4f18\u5148\u4f7f\u7528 QPixmap \u800c\u975e QImage \u52a0\u8f7d\u56fe\u7247（\u91cd\u4e2d\u4e4b\u91cd）<\/p>\n

\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

\/\/ \u2705 \u63a8\u8350：QPixmap \u2192 \u663e\u5b58\u4e2d\u5b58\u50a8，QT\u8c03\u75282D\u786c\u4ef6\u76f4\u63a5\u6e32\u67d3，\u96f6CPU\u6d88\u8017QPixmap\u00a0pix("test.png");ui->label->setPixmap(pix.scaled(1920,1080,\u00a0Qt::KeepAspectRatio,\u00a0Qt::FastTransformation));\/\/ \u274c \u4e0d\u63a8\u8350：QImage \u2192 \u5185\u5b58\u4e2d\u5b58\u50a8，CPU\u8f6f\u6e32\u67d3\u540e\u518d\u62f7\u8d1d\u5230\u663e\u5b58，\u5360\u7528CPU\u9ad8\/\/ QImage img("test.png");\/\/ ui->label->setPixmap(QPixmap::fromImage(img)); <\/p>\n

\u539f\u7406：NT98323 \u7684 2D \u52a0\u901f\u5668\u76f4\u63a5\u7ba1\u7406\u663e\u5b58，QPixmap \u662f QT \u7684\u663e\u5b58\u4f4d\u56fe\u5bf9\u8c61，\u786c\u4ef6\u53ef\u4ee5\u76f4\u63a5\u8bfb\u53d6\u6e32\u67d3；QImage \u662f\u5185\u5b58\u4f4d\u56fe，\u9700\u8981 CPU \u62f7\u8d1d\u5230\u663e\u5b58，\u6d6a\u8d39\u8d44\u6e90\u3002<\/p>\n

\u2705 \u4f18\u5316 2：\u5173\u95ed QPainter \u7684\u8f6f\u4ef6\u6297\u952f\u9f7f \/ \u5e73\u6ed1\u6e32\u67d3<\/p>\n

QT \u7684\u8f6f\u4ef6\u6297\u952f\u9f7f\u662f CPU \u8ba1\u7b97\u7684，\u5f00\u542f\u540e\u4f1a\u62b5\u6d88 2D \u52a0\u901f\u7684\u6548\u679c，\u800c\u4e14 NT98323 \u7684 2D \u786c\u4ef6\u672c\u8eab\u652f\u6301\u786c\u4ef6\u5e73\u6ed1，\u4e0d\u9700\u8981\u8f6f\u4ef6\u515c\u5e95：<\/p>\n

void\u00a0paintEvent(QPaintEvent *event){\u00a0 \u00a0\u00a0QPainter\u00a0painter(this);\u00a0 \u00a0\u00a0\/\/ \u274c \u6ce8\u91ca\u6389\u8fd9\u4e24\u884c，\u5173\u95ed\u8f6f\u4ef6\u6e32\u67d3\u4f18\u5316\u00a0 \u00a0\u00a0\/\/ painter.setRenderHint(QPainter::Antialiasing);\u00a0 \u00a0\u00a0\/\/ painter.setRenderHint(QPainter::SmoothPixmapTransform);
\n\u00a0 \u00a0 painter.drawPixmap(0,0,pixmap);} <\/p>\n

\u2705 \u4f18\u5316 3：\u51cf\u5c11\u754c\u9762\u91cd\u7ed8\u533a\u57df，\u907f\u514d\u5168\u5c4f\u5237\u65b0\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

\/\/ \u53ea\u5237\u65b0\u9700\u8981\u66f4\u65b0\u7684\u63a7\u4ef6\u533a\u57df，\u800c\u4e0d\u662f\u6574\u4e2a\u7a97\u53e3ui->label->update();\u00a0\/\/ \u4e0d\u8981\u7528 this->update(); \u4f1a\u5168\u5c4f\u5237\u65b0，\u589e\u52a02D\u786c\u4ef6\u8d1f\u62c5 <\/p>\n

\u2705 \u4f18\u5316 4：\u7981\u7528 QT \u7684\u52a8\u753b \/ \u6e10\u53d8\u7279\u6548（\u5982\u679c\u6709）<\/p>\n

\u590d\u6742\u7684\u52a8\u753b\u3001\u6e10\u53d8\u3001\u9634\u5f71\u90fd\u662f CPU \u8f6f\u8ba1\u7b97\u7684，\u5373\u4f7f\u5f00\u542f 2D \u52a0\u901f，\u8fd9\u4e9b\u7279\u6548\u4e5f\u65e0\u6cd5\u786c\u4ef6\u5316，\u4f1a\u62c9\u9ad8 CPU \u5360\u7528，\u5d4c\u5165\u5f0f\u754c\u9762\u5efa\u8bae\u7528\u7b80\u6d01\u7684 UI \u8bbe\u8ba1\u3002<\/p>\n

\n

\u516d\u3001\u5982\u4f55\u9a8c\u8bc1：QT \u662f\u5426\u771f\u7684\u8c03\u7528\u4e86 NT98323 \u7684 2D \u786c\u4ef6\u52a0\u901f\u5668？（\u5fc5\u505a\u9a8c\u8bc1）<\/h2>\n

\u914d\u7f6e\u5b8c\u6210\u540e，\u5fc5\u987b\u505a\u9a8c\u8bc1，\u786e\u8ba4 2D \u52a0\u901f\u751f\u6548，\u907f\u514d\u300c\u914d\u7f6e\u4e86\u4f46\u6ca1\u751f\u6548\u300d\u7684\u60c5\u51b5，\u63d0\u4f9b3 \u79cd\u9a8c\u8bc1\u65b9\u5f0f，\u4ece\u7b80\u5355\u5230\u590d\u6742，\u5168\u90e8\u6709\u6548，\u4f18\u5148\u7ea7\u6392\u5e8f：\u65b9\u5f0f 1 > \u65b9\u5f0f 2 > \u65b9\u5f0f 3<\/p>\n

\u2705 \u65b9\u5f0f 1：CPU \u5360\u7528\u7387\u9a8c\u8bc1（\u6700\u76f4\u89c2，\u63a8\u8350）<\/p>\n

\u8fd9\u662f\u6700\u6709\u6548\u7684\u9a8c\u8bc1\u65b9\u5f0f，\u4e5f\u662f\u5d4c\u5165\u5f0f\u5f00\u53d1\u6700\u5173\u5fc3\u7684\u6307\u6807，\u5728\u5f00\u53d1\u677f\u4e0a\u6267\u884c：<\/p>\n

top <\/p>\n

\u67e5\u770b\u4f60\u7684 QT \u7a0b\u5e8f\u8fdb\u7a0b\u7684 CPU \u5360\u7528\u7387：<\/p>\n

\u274c \u672a\u5f00\u542f 2D \u52a0\u901f（\u8f6f\u6e32\u67d3）：CPU \u5360\u752840% ~ 80%，\u754c\u9762\u5361\u987f，\u5237\u65b0\u65f6 CPU \u76f4\u63a5\u62c9\u6ee1；<\/p>\n

\u2705 \u5f00\u542f 2D \u52a0\u901f（\u786c\u4ef6\u6e32\u67d3）：CPU \u5360\u75283% ~ 10%，\u754c\u9762\u4e1d\u6ed1\u6d41\u7545，\u5373\u4f7f\u52a8\u6001\u5237\u65b0\u56fe\u7247，CPU \u4e5f\u4e0d\u4f1a\u8d85\u8fc7 15%\u3002<\/p>\n

\u2714\ufe0f \u8fd9\u662f\u6700\u6838\u5fc3\u7684\u9a8c\u8bc1\u6807\u51c6，\u53ea\u8981 CPU \u5360\u7528\u964d\u5230\u8fd9\u4e2a\u533a\u95f4，\u8bf4\u660e 2D \u52a0\u901f 100% \u751f\u6548\u4e86\u3002<\/p>\n

\u2705 \u65b9\u5f0f 2：\u5185\u6838\u65e5\u5fd7\u9a8c\u8bc1（\u6700\u6743\u5a01，\u786e\u8ba4\u786c\u4ef6\u88ab\u8c03\u7528）<\/p>\n

NT98323 \u7684 2D \u52a0\u901f\u5668\u9a71\u52a8\u5728\u88ab\u8c03\u7528\u65f6，\u4f1a\u5728 kernel \u65e5\u5fd7\u4e2d\u6253\u5370\u76f8\u5173\u4fe1\u606f，\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4：<\/p>\n

dmesg\u00a0| grep -i\u00a0"2d\\\\|blit\\\\|fb0\\\\|accel" <\/p>\n

\u751f\u6548\u7684\u65e5\u5fd7\u8f93\u51fa\u793a\u4f8b：\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

[ \u00a0120.345678] novatek_2d\u00a01f200000.2d:\u00a02D Blitter hardware blit\u00a0start\u00a0(fb0,\u00a01920×1080)[ \u00a0120.356789] novatek_2d 1f200000.2d: BLT transfer success, src=0x40000000, dst=0x50000000[ \u00a0120.367890] fb0: nt98323-fb hardware acceleration enabled\u00a0for\u00a0QT <\/p>\n

\u2714\ufe0f \u770b\u5230\u00a02D Blitter hardware blit start\u00a0\u8bf4\u660e QT \u7684\u7ed8\u5236\u6307\u4ee4\u5df2\u7ecf\u4ea4\u7ed9\u786c\u4ef6\u6267\u884c\u4e86\u3002<\/p>\n

\u2705 \u65b9\u5f0f 3：QT \u542f\u52a8\u65e5\u5fd7\u9a8c\u8bc1<\/p>\n

\u5728\u8fd0\u884c\u811a\u672c\u4e2d\u53bb\u6389\u65e5\u5fd7\u5173\u95ed\u7684\u73af\u5883\u53d8\u91cf，\u8fd0\u884c QT \u7a0b\u5e8f，\u4f1a\u770b\u5230 QT \u7684\u542f\u52a8\u65e5\u5fd7：\u200b\u200b\u200b\u200b\u200b\u200b\u200b<\/p>\n

QLinuxFbIntegration: Using hardware acceleration (2D Blitter)QLinuxFbIntegration: Framebuffer: \/dev\/fb0, Size:\u00a01920×1080, Depth:\u00a032 <\/p>\n

\u2714\ufe0f \u770b\u5230\u00a0Using hardware acceleration (2D Blitter)\u00a0\u8bf4\u660e QT \u7684 LinuxFB \u63d2\u4ef6\u6210\u529f\u542f\u7528\u4e86 2D \u786c\u4ef6\u52a0\u901f\u3002<\/p>\n

\n

\u4e03\u3001\u5e38\u89c1\u95ee\u9898\u6392\u67e5（\u8054\u548f 98323 QT+2D \u52a0\u901f \u9ad8\u9891\u5751，\u5fc5\u770b！）<\/h2>\n

\u6574\u7406\u4e86 98323 \u5e73\u53f0 QT \u8c03\u7528 2D \u52a0\u901f\u5668\u7684\u6240\u6709\u5e38\u89c1\u95ee\u9898 + \u89e3\u51b3\u65b9\u6848，\u90fd\u662f\u5b9e\u6d4b\u8e29\u5751\u540e\u7684\u7ecf\u9a8c，99% \u7684\u95ee\u9898\u90fd\u80fd\u5728\u8fd9\u91cc\u89e3\u51b3：<\/p>\n

\u2753 \u95ee\u9898 1：QT \u754c\u9762\u80fd\u663e\u793a，\u4f46 CPU \u5360\u7528\u8fd8\u662f\u5f88\u9ad8（40%+），2D \u52a0\u901f\u6ca1\u751f\u6548<\/p>\n

\u2705 \u89e3\u51b3\u65b9\u6848（\u6309\u4f18\u5148\u7ea7\u6392\u67e5）：<\/p>\n

\u68c0\u67e5\u73af\u5883\u53d8\u91cfQT_QPA_FB_HARDWARE_ACCELERATION=1\u662f\u5426\u914d\u7f6e，\u5fc5\u987b\u7b49\u4e8e 1，\u4e0d\u662f 0；<\/p>\n

1.\u68c0\u67e5 QT \u7f16\u8bd1\u65f6\u662f\u5426\u52a0\u4e86-linuxfb，\u6709\u6ca1\u6709\u8bef\u5f00-opengl；<\/p>\n

2.\u68c0\u67e5 NT98323 \u7684 2D \u9a71\u52a8\u662f\u5426\u771f\u7684\u52a0\u8f7d：dmesg | grep novatek_2d，\u5fc5\u987b\u770b\u5230\u9a71\u52a8\u52a0\u8f7d\u6210\u529f\u7684\u65e5\u5fd7；<\/p>\n

3.\u68c0\u67e5\u662f\u5426\u7528\u4e86QImage\u52a0\u8f7d\u56fe\u7247，\u6362\u6210QPixmap\u5373\u53ef\u3002<\/p>\n

\u2753 \u95ee\u9898 2：QT \u754c\u9762\u82b1\u5c4f \/ \u9519\u4f4d \/ \u5206\u8fa8\u7387\u4e0d\u5bf9（\u6bd4\u5982\u663e\u793a 800×480）<\/p>\n

\u2705 \u89e3\u51b3\u65b9\u6848：<\/p>\n

1.\u73af\u5883\u53d8\u91cf\u4e2d\u5fc5\u987b\u6307\u5b9asize=1920×1080，\u548c\u4f60\u7684 fb0 \u5206\u8fa8\u7387\u4e00\u81f4；<\/p>\n

2.\u68c0\u67e5\/sys\/class\/graphics\/fb0\/virtual_size\u8f93\u51fa\u662f\u5426\u4e3a1920,1080，\u786e\u8ba4\u5e27\u7f13\u51b2\u914d\u7f6e\u6b63\u786e；<\/p>\n

3.\u52a0\u73af\u5883\u53d8\u91cfQT_QPA_FB_NO_LINUXFBCONFIG=1\u7981\u7528\u7cfb\u7edf\u7684 fb \u81ea\u52a8\u914d\u7f6e\u3002<\/p>\n

\u2753 \u95ee\u9898 3：QT \u7a0b\u5e8f\u542f\u52a8\u9ed1\u5c4f，\u65e0\u4efb\u4f55\u663e\u793a<\/p>\n

\u2705 \u89e3\u51b3\u65b9\u6848：<\/p>\n

1.\u68c0\u67e5\u5e27\u7f13\u51b2\u8bbe\u5907\u6743\u9650：chmod 777 \/dev\/fb0，QT \u7a0b\u5e8f\u9700\u8981\u8bfb\u5199 fb0 \u7684\u6743\u9650；<\/p>\n

2.\u68c0\u67e5\u73af\u5883\u53d8\u91cf\u7684fb=\/dev\/fb0\u662f\u5426\u6b63\u786e，98323 \u7684\u5e27\u7f13\u51b2\u9ed8\u8ba4\u662f fb0；<\/p>\n

3.\u68c0\u67e5 QT \u7684\u5e93\u8def\u5f84\u662f\u5426\u6b63\u786e：LD_LIBRARY_PATH\u662f\u5426\u6307\u5411 QT \u7684 lib \u76ee\u5f55\u3002<\/p>\n

\u2753 \u95ee\u9898 4：\u754c\u9762\u6709\u95ea\u70c1，\u5c24\u5176\u662f\u5237\u65b0\u56fe\u7247 \/ \u63a7\u4ef6\u65f6<\/p>\n

\u2705 \u89e3\u51b3\u65b9\u6848：<\/p>\n

1.NT98323 \u7684 2D \u52a0\u901f\u5668\u652f\u6301\u786c\u4ef6\u53cc\u7f13\u51b2，QT \u7684 LinuxFB \u63d2\u4ef6\u4f1a\u81ea\u52a8\u542f\u7528，\u65e0\u9700\u4ee3\u7801\u914d\u7f6e；<\/p>\n

2.\u5173\u95ed QPainter \u7684\u8f6f\u4ef6\u6297\u952f\u9f7f，\u51cf\u5c11 CPU \u8ba1\u7b97；<\/p>\n

3.\u7528update()\u4ee3\u66ffrepaint()\u5237\u65b0\u63a7\u4ef6\u3002<\/p>\n

\u2753 \u95ee\u9898 5：\u89e6\u6478\u5c4f\u70b9\u51fb\u9519\u4f4d \/ \u65e0\u54cd\u5e94<\/p>\n

\u2705 \u89e3\u51b3\u65b9\u6848：<\/p>\n

\u68c0\u67e5\u73af\u5883\u53d8\u91cf\u7684\u89e6\u6478\u5c4f\u8282\u70b9：\/dev\/input\/event0，\u6362\u6210\u4f60\u7684\u5b9e\u9645\u89e6\u6478\u5c4f\u8282\u70b9；<\/p>\n

\u6821\u51c6\u89e6\u6478\u5c4f：ts_calibrate，\u751f\u6210\u6821\u51c6\u6587\u4ef6\u540e\u914d\u7f6e\u5230\u73af\u5883\u53d8\u91cf\u3002<\/p>\n

\n

\u516b\u3001\u8865\u5145：NT98323 2D \u52a0\u901f\u5668\u7684 QT \u652f\u6301\u80fd\u529b\u8bf4\u660e<\/h2>\n

\u7ed9\u4f60\u660e\u786e\u7684\u529f\u80fd\u652f\u6301\u6e05\u5355，\u77e5\u9053\u54ea\u4e9b QT \u64cd\u4f5c\u80fd\u786c\u4ef6\u52a0\u901f，\u54ea\u4e9b\u4e0d\u80fd，\u907f\u514d\u505a\u65e0\u7528\u529f：<\/p>\n

\u2705 \u5b8c\u5168\u652f\u6301\u786c\u4ef6\u52a0\u901f（QT \u81ea\u52a8\u8c03\u7528 2D \u786c\u4ef6，\u96f6 CPU）<\/p>\n