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cmake配置cuda12.4+libtorch开发环境 前言c++想要配置libtorch还是挺坑的,特别是我用的cuda12.4,各种环境整合起来极其复杂,配起来这环境我头发都薅掉了一把😅准备工作确认显卡环境支持这篇文章建立在你的显卡支持cuda12.4环境的前提上,如果不支持,可以直接看踩坑点,或者直接叉掉.下载安装 CUDA Toolkithttps://developer.nvidia.com/cuda-downloads安装过程自定义,音频驱动取消,其他全勾就行如果你没安装vs2019+版本,就不要勾选vs相关选项安装完毕之后去查看你的环境变量下载安装 cuDNNhttps://developer.nvidia.com/cudnn-downloads安装过程默认下载安装 LibTorch我下载的是debug版本,release版本可以需要发布时再安装,使用cmake切换运行代码/踩坑新建一个项目文件夹,创建CMakeLIsts.txtcmake_minimum_required(VERSION 3.29) project(torch_test) set(CMAKE_CXX_STANDARD 20) # 你的libtorch目录 set(CMAKE_PREFIX_PATH "F:/Engcode/c_c++/modules/libtorchd" ${CMAKE_PREFIX_PATH}) # 换成你的cuda目录 link_directories("C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v12.1/lib64") find_package(Torch REQUIRED) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TORCH_CXX_FLAGS}") add_executable(torch_test main.cpp) target_link_libraries(torch_test "${TORCH_LIBRARIES}") if (MSVC) file(GLOB TORCH_DLLS "${TORCH_INSTALL_PREFIX}/lib/*.dll") add_custom_command(TARGET torch_test POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different ${TORCH_DLLS} $<TARGET_FILE_DIR:torch_test>) endif (MSVC)踩坑这个时候你如果只看libtorch的官方文档https://pytorch.org/cppdocs/installing.html那你大概率只会得到如下的报错解决方案下载cuda11.8https://developer.nvidia.com/cuda-11-8-0-download-archive安装时选择自定义安装除了Nsight NVTX以外的勾全去了完成#include <torch/torch.h> #include <iostream> int main() { torch::Tensor tensor = torch::rand({2, 3}); std::cout << tensor << std::endl; }
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[HYGUI开发] emoji绘制问题的解决 寻找方案在使用skia绘制的时候无论如何都无法绘制emoji手动指定了一个支持emoji的字体恩。。。手动指定一个中文字体试试字体比之前更全了，事情开始变得有趣了起来🤔那么问题应该就在内置字体不全上,已知有些字体支持除了emoji以外的大部分字体,而emobj需要额外的字体支持，而库需要跨平台，那么只能识别emoji然后将符号特殊处理🤯那么去找unicode的emoji范围规范吧https://unicode.org/Public/emoji/latest/emoji-test.txtdump下来常用emoji之后需要找一个支持的字体，本来google的Noto Color Emoji是个不错的选择，但是吧skia无法渲染TWT那只能使用另一套开源但是风格略奇怪的字体openmoji，选用兼容性较好的 OpenMoji-color-colr0_svg尝试引入模拟skia的 ParagraphBuilderImpl 和 Paragraph由 ParagraphBuilderImpl构建段落布局信息,Paragraph进行渲染.// 预先定义字体信息 SkFontMetrics font_metrics{}; Font->getMetrics(&font_metrics); auto emoji_font = SkFont(g_app.EmojiTypeface->makeClone(SkFontArguments{}), Font->getSize()); SkFontMetrics emoji_font_metrics{}; emoji_font.getMetrics(&emoji_font_metrics); auto utils_font = SkFont(g_app.UtilsTypeface->makeClone(SkFontArguments{}), Font->getSize()); SkFontMetrics utils_font_metrics{}; utils_font.getMetrics(&utils_font_metrics);计算每个字符的位置for (auto textLayout: TextCache) { HYParagraph::LineLayout lineLayout; if (textLayout.empty()) { textLayout = U" "; } // 计算每个字符 textLayout.forEachUtf8CharBoundary([&](const char8_t *data, size_t start, size_t len, char32_t c) -> int { // 取出每个符号进行测量 HYString tests(c); auto tests_c = c; switch (c) { case U'\n': { // 也许暂时不需要? PrintError("未处理的换行符!!!"); } break; case U' ': { // 空格,一般会无法计算,使用a进行代替计算. tests = U"1"; tests_c = U' '; len = tests.size(); } break; default: break; } HYParagraph::CharacterLayout characterLayout; SkRect ts; SkScalar char_scalar; auto GlyphID = Font->unicharToGlyph(c); if (GlyphID == 0) { // 测量失败,测试特殊字符 GlyphID = utils_font.unicharToGlyph(c); if (GlyphID != 0) { char_scalar = utils_font.measureText(tests.c_str(), len, SkTextEncoding::kUTF8, &ts); characterLayout.glyphType = HYParagraph::CharacterGlyphType::Utils; } else { // 测量失败,测试emoji GlyphID = emoji_font.unicharToGlyph(c); if (GlyphID != 0) { char_scalar = emoji_font.measureText(tests.c_str(), len, SkTextEncoding::kUTF8, &ts); characterLayout.glyphType = HYParagraph::CharacterGlyphType::Emoji; } else { tests = U'☐'; tests_c = U'☐'; len = tests.size(); char_scalar = Font->measureText(tests.c_str(), len, SkTextEncoding::kUTF8, &ts); } } } else { char_scalar = Font->measureText(tests.c_str(), len, SkTextEncoding::kUTF8, &ts); } PrintDebug("{} {} {}x{} GlyphID:{}", tests.c_str(), char_scalar, ts.width(), ts.height(), GlyphID); characterLayout.metrics.fAscent = ts.top(); characterLayout.metrics.fDescent = ts.bottom(); characterLayout.metrics.fLeading = std::max(font_metrics.fLeading, emoji_font_metrics.fLeading); characterLayout.metrics.fMaxHeight = fabs(lineLayout.metrics.fAscent) + fabs(lineLayout.metrics.fDescent) + lineLayout.metrics.fLeading; lineLayout.metrics.fAscent = std::min(ts.top(), lineLayout.metrics.fAscent); lineLayout.metrics.fDescent = std::max(ts.bottom(), lineLayout.metrics.fDescent); lineLayout.metrics.fLeading = std::max(std::max(font_metrics.fLeading, emoji_font_metrics.fLeading), lineLayout.metrics.fLeading); characterLayout.len = len; characterLayout.value = tests_c; characterLayout.text = tests_c; characterLayout.rect = { .x = addLen, .y = addHeight, .width = char_scalar, .height = ts.height(), }; // 偏移 addLen += char_scalar; lineLayout.characterLayouts.emplace_back(characterLayout); return 0; }); lineLayout.metrics.fMaxHeight = std::fabs(lineLayout.metrics.fAscent) + std::fabs(lineLayout.metrics.fDescent) + std::fabs(lineLayout.metrics.fLeading); addHeight += lineLayout.metrics.fMaxHeight + LineSpacing; addLen = 0; layouts->emplace_back(lineLayout); }渲染void HYParagraph::Canvas(CanvasPtr canvas, PaintPtr paint, const HYRectf &rect, const HYPointf &offset) { auto emoji_font = SkFont(g_app.EmojiTypeface->makeClone(SkFontArguments{}), font->getSize()); auto utils_font = SkFont(g_app.UtilsTypeface->makeClone(SkFontArguments{}), font->getSize()); for (auto &line: *lineLayouts) { for (auto &word: line.characterLayouts) { SkFont *df = font; if (word.glyphType == HYParagraph::CharacterGlyphType::Emoji) { df = &emoji_font; } else if (word.glyphType == HYParagraph::CharacterGlyphType::Utils) { df = &utils_font; } canvas->drawString(word.text.c_str(), offset.x + word.rect.x, offset.y + word.rect.y - line.metrics.fAscent, *df, *paint); } } };成果看看尺寸9mb，考虑到是单文件无依赖静态链接，也能接受。结语这里尽可能使用最小成本实现了对多端友好(方便跨平台),但是因为裁减了font,会有部分字符显示不全.HYParagraphBuilderImpl只写了基本的计算,还可以进行超多优化:自动换行、字符/段落间距、超出区域停止渲染，为了最小化代码体积而关闭emoji扩展等相关项目HYGUI
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windows访问WSL出现\\wsl.localhost 无法访问 \\wsl.localhost 无法访问。你可能没有权限使用网络资源。请与这台服务器的管理员联系以查明你是否有访问权限。系统资源不足，无法完成请求的服务。打开注册表找到以下两项HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NetworkProvider\Order HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\NetworkProvider\HwOrder将ProviderOrder的值从cbfs6,P9NP,RDPNP,LanmanWorkstation,webclient改为P9NP,RDPNP,LanmanWorkstation,webclient懒人方案我写了一个小工具Huiyicc/wsl_repair加入到快捷启动直接运行就是
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![[HYGUI开发] emoji绘制问题的解决](https://blog.hyiy.top/usr/uploads/2024/09/570911914.png)
