Graphics AiChengGongENGINEERING SIGNALS

LIVE SYSTEMS DESKUTC+8 / EVERY 2H

把图形栈的变化，
放回它所在的层。

从 Android 合成到 DRM/KMS，从 Mesa 驱动到 OpenXR。知识地图解释系统如何连接，技术雷达持续追踪全球一手变化。

进入技术雷达 浏览图形栈
D1 数据链路在线公开阈值 ≥ 55 / 100一手来源优先摘要拒绝推测

01 / KNOWLEDGE ATLAS

图形栈知识地图

选择一个层级，沿组件、接口、数据流与调试入口向下钻取。

01 / 08

Android Graphics

FRAMEWORK → HAL → KERNEL

02 / 08

OpenHarmony Graphics

ARKUI → ROSEN → DISPLAY

03 / 08

Linux DRM / KMS

UAPI → GEM → ATOMIC KMS

04 / 08

Mesa / DRI

API → STATE TRACKER → GALLIUM

05 / 08

Wayland Compositors

PROTOCOL → COMPOSITOR → BACKEND

06 / 08

Vulkan / OpenGL

SPEC → LOADER → ICD

07 / 08

GPU Drivers

COMPILER → SCHEDULER → MEMORY

08 / 08

XR / OpenXR

RUNTIME → COMPOSITOR → DEVICE

02 / EDITOR'S SIGNAL

今日精选

完整日报
97SCORE
一手来源Skia规范android / gpu-drivers

[Graphite] Add explicit root nodes struct ↗

Skia Graphite 为根着色器节点引入显式结构，避免 drawMesh 新增可选 SkMeshSpecification 根节点后与可选裁剪着色器产生布局歧义。实现会在 PaintParamsKey 中为每个根节点写入类型头，并据此构建 ShaderNode 树。

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90SCORE
一手来源glslang releases发布vulkan-opengl / gpu-drivers

16.5.0 ↗

摘要待补：No content.

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85SCORE
发现来源LWN.net文章linux-drm / gpu-drivers

Security updates for Monday ↗

摘要待补：Security updates have been issued by <b>AlmaLinux</b> (.NET 10.0, .NET 8.0, .NET 9.0, fence-agents, kernel, kernel-rt, openssh, osbuild-composer, perl-Archive-Tar, perl-DBI, perl:5.32, pipewire, python-pillow, qemu-kvm, unbound, and vim), <b>Debian</b> (chromium, incus, kernel, kissfft, libgd2, libmodbus, libssh, node-tar, php8.4, poppler, python-authlib, sslh, and starlette), <b>Fedora</b> (borgbackup, coturn, curl, exim, fuse-overlayfs, gh, GitPython, goaccess, lemonldap-ng, libgit2, nextcloud, nsd, php, postgresql16, python3.12, rabbitmq-server, rust-libgit2-sys, and xen), <b>Mageia</b> (bluez, firmware, kernel, kmod, wireless-regdb), <b>Oracle</b> (buildah, compat-libtiff3, dovecot, fence-agents, firefox, gimp, glibc, grafana, gstreamer1-plugins-bad-free, java-25-openjdk, kernel, libgcrypt, libtiff, libXfont2, nodejs24, nodejs:22, nodejs:24, openssh, openssl, PackageKit, pipewire, python-pillow, rest, sssd, vim, and yelp), <b>SUSE</b> (bind, chromium, dnsdist, gdk-pixbuf-loader-libheif, gio-branding-upstream, google-guest-agent, govulncheck-vulndb, GraphicsMagick, ignition, ImageMagick, keybase-client, kronosnet, libblkid-devel, libntpc1, libpng16, nano, openssh, openssl-1_0_0,

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90SCORE
一手来源glslang releases发布vulkan-opengl / gpu-drivers

main-tot ↗

摘要待补：<p>Continuous build of the latest main branch by Github</p>

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83SCORE
一手来源ANGLE性能android / vulkan-opengl

Optimize robust init check during GenerateMipmap ↗

ANGLE 为 GenerateMipmap 增加 EnsureInitializedLevels 枚举，使随后会被 mipmap 生成覆盖的基础级以上纹理层可以跳过稳健初始化。提交同时给出了对应的 ANGLE 端到端测试过滤项。

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79SCORE
一手来源OpenXR SDK releases发布xr-openxr

OpenXR SDK 1.1.62 ↗

OpenXR SDK 1.1.62 新增一个厂商扩展，并修复上一版本加入的若干厂商扩展，同时包含加载器设计文档澄清和软件清理。扩展开发现在可在独立 fragment XML 中进行，再由工具生成合并后的 xr.xml，以减少开发时的合并冲突。

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03 / LATEST

最新动态

全部动态 →
60SCORE
一手来源OpenHarmony window_manager功能openharmony

!19914 merge develop_addisinuse into master ↗

摘要待补：add isinuse Created-by: AZ22 Commit-by: wangdi Merged-by: openharmony_ci Description: **Description:** add isinuse **Issue number:** https://gitcode.com/openharmony/window_window_manager/issues/15344 **Test & Result:** **CodeCheck:** <table> <tr> <th>类型</th><th>自检项</th><th>自检结果</th> </tr> <tr> <td rowspan="2">多线程相关</td><td>在类的成员变量中定义了vector/map/list等容器类型，且在多个成员函数中有操作时，需要加锁保护</td><td>自检结果：Pass</td> </tr> <tr> <td>定义全局变量，在多个函数中都有操作时，需要加锁保护</td><td>自检结果：Pass</td> </tr> <tr> <td rowspan="4">内存相关</td><td>调用外部接口时，确认是否对返回值做了判断，尤其外部接口返回了nullptr的情况，避免进程崩溃</td><td>自检结果：Pass</td> </tr> <tr> <td>调用安全函数时，如memcpy_s等，是否检查其返回值</td><td>自检结果：Pass</td> </tr> <tr> <td>检查函数中是否涉及了内存或资源申请（如文件句柄），注意每个异常退出流程，是否都已经将资源释放（推荐使用RAII）</td><td>自检结果：Pass</td> </tr> </tr> <tr> <td>隐式内存分配场景：realpath、ReadParcelable序列化、cJSON相关函数时等，需主动释放或使用智能指针</td><td>自检结果：Pass</td> </tr> <tr> <td rowspan="4">校验外部输入</td><td>使用nlohmann:json解析外部输入时，需判断参数类型是否符合预期</td><td>自检结果：Pass</td> </tr> <tr> <td>所有外部输入均不可信，需判断外部输入是否直接作为内存分配的大小，数组下标、循环条件、SQL查询等</td><td>自检结果：Pass</td> </tr> <tr>

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72SCORE
一手来源Skia驱动android / gpu-drivers

[text] Introduce PackedGPUGlyphID to add more metadata to SkPackedGlyphID ↗

摘要待补：Both Ganesh and Graphite share a lot of common structure to their glyph handling code, so the changes outlined below are applied pretty similarly to both codebases. 1. Adds a new shared type PackedGPUGlyphID that wraps SkPackedGlyphID and packs into the free bits the rest of the information that atlas-backed glyphs require, which is the mask format, the amount of padding, and whether or not the data is a coverage or distance value. 2. Pulls back the presence of MaskFormat from the GlyphVector concepts and functions as it's now handled internally by each backend's GlyphData classes and embedded into the packed GPU IDs that they make. 3. Each backend's TextStrike implementation stores PackedGPUGlyphIDs as the keys to GlyphEntries instead of SkPackedGlyphIDs. This ensures that an atlas will only have a cache hit if all of the mask/padding/data-type properties are consistent with what was in the atlas and what is requested by the subrun being drawn. 4. Each backend's GlyphData implementation takes in these additional properties in its constructor (propagating to initBackendData() calls). It then resolves the mask format and padding with the configuration of the backend's atlas mana

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71SCORE
一手来源Skia功能android / gpu-drivers

Update viewer help flags ↗

摘要待补：I noticed the flags (e.g. dawn) for --backend's help message were out of date. The intent was to update this dynamically based on what was compiled in, but this bitrotted. I updated this to match the logic for get_backend_type Change-Id: Ic6d3565b8f644ca87f4fb742b78d264d1a0c8079 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/1313016 Commit-Queue: Kaylee Lubick <kjlubick@google.com> Auto-Submit: Kaylee Lubick <kjlubick@google.com> Commit-Queue: Alexis Cruz-Ayala <alexisdavidc@google.com> Reviewed-by: Alexis Cruz-Ayala <alexisdavidc@google.com>

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78SCORE
一手来源ANGLE修复android / vulkan-opengl

Vulkan: Map only remaining buffer size in getIndexRange ↗

摘要待补：Correct the mapped buffer range length in getIndexRange to only map the remaining buffer size. This prevents staging buffer copies from reading past the end of the suballocation. Test: angle_end2end_tests --gtest_filter="*DrawAtOffsetWithClientSideVertexData*" Bug: b/536598187 Change-Id: I6e1bb638562fc165a013478c16da639c1cfd5071 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/8178489 Reviewed-by: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Ran Wang <wangra@google.com>

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