This is a set of patches to address Chromium Issue 306078: SVG in OpenType support, new issue location. Chromium is too large to be built within github's 6 hour limit, so this CI only attempts to build Blink as a library, just to verify that the patches build. And that takes just over 5 hours, and I reckon constitute about 40% of chromium. The patches are tested in the QT6 versions mentioned below.
m120 is current stable, and the patches are identical to the QT6 m118 versions except relocated (QT6 WebEngine has
the chromium source tree under src/3rdparty/chromium/).
Earlier 118 versions are built in QT6 WebEngine and tested with the QT6 browser example in minimal web browser collections.
The patches are logically in 3 parts, but in 2 files:
-
a one-line hook to connect Skia's SVG module with the skia's FreeType font manager. It only needs to be done once. In Skia Python, it is done at python module loading time, although the earlier work to test and set just before it is needed is gauranteed to work, at the risk of doing unnessary work multiple times. Here I do both, as I am not sure
skia/ext/fontmgr_default_linux.cc(orskia/ext/font_utils.ccin m122 onwards) is the only entry point. Somebody more knowledgeable might be able to indicate a better location otherwise. Plus some changes to the skia build script to include the optional svg module and what it depends on. -
Modify the included OpenType Sanitizer related code to pass SVG through. This is quite straight-forward, referencing treatment of other tables.
These two allows OT-SVG to work on Linux, so it is combined into a "patch 1".
- Blink already includes diversion from CoreText/DirectWrite to FreeType on non-Linux, for font formats not supported by the host OS. A small addition along the same line as other font formats is added for SVG too.
This "patch 2" is only passively tested on Linux (as in it has no affect on "patch 1").
ungoogled chromium, Fedora shipped chromium package, QT WebEngine.
Bare:
overlay 87204404 58875772 28312248 68% /
-rw-r--r-- 1 root root 3298048007 Jan 15 09:52 a.rpm
All dependencies:
overlay 87204404 64616280 22571740 75% /
Unpacking tarball:
overlay 87204404 85434128 1753892 98% /
cleaned tarball:
overlay 87204404 79232528 7955492 91% /
2592652 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/angle/third_party
2666348 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/angle
314040 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/blink
138676 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/boringssl
339104 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/catapult/third_party
383284 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/catapult
404140 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/dawn/third_party
885088 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/dawn
417944 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/devtools-frontend
100560 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/harfbuzz-ng
230368 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/icu
1882116 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/llvm
4322576 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/rust-src
555028 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/swiftshader/third_party
1072660 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109/third_party/swiftshader
19145080 /github/home/rpmbuild/BUILD/chromium-120.0.6099.109
[headless_shell:31366/41287] CXX obj/content/browser/browser/screen_change_monitor.o
[headless_shell:31336/41287] CXX obj/content/browser/browser/render_widget_host_impl.o
[chrome:39361/57874] CXX obj/chrome/browser/extensions/extensions/sync_storage_backend.o
[chrome:39546/57874] CXX obj/chrome/browser/extensions/extensions/webstore_installer.o
obj/skia/libskia.a
obj/third_party/ots/libots.a
obj/third_party/blink/renderer/platform/libblink_platform.a
[third_party/blink/renderer/platform:6018/23003] CXX obj/third_party/ots/ots/ots.o
[third_party/blink/renderer/platform:8141/23003] CXX obj/skia/skia/fontmgr_default_linux.o
[third_party/blink/renderer/platform:8330/23003] CXX obj/skia/skia/SkFontHost_FreeType.o
[third_party/blink/renderer/platform:21067/23003] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
[third_party/blink/renderer/platform:21118/23003] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
[third_party/blink/renderer/platform:21121/23003] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
chromium-121.0.6167.47-clean.tar.xz
3351519184
[third_party/blink/renderer/platform:6065/23206] CXX obj/third_party/ots/ots/ots.o
[third_party/blink/renderer/platform:8248/23206] CXX obj/skia/skia/fontmgr_default_linux.o
[third_party/blink/renderer/platform:8434/23206] CXX obj/skia/skia/SkFontHost_FreeType.o
[third_party/blink/renderer/platform:21264/23206] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
[third_party/blink/renderer/platform:21316/23206] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
[third_party/blink/renderer/platform:21319/23206] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
chromium-122.0.6226.2-clean.tar.xz
3335866628
[third_party/blink/renderer/platform:6105/23237] CXX obj/third_party/ots/ots/ots.o
[third_party/blink/renderer/platform:8267/23237] CXX obj/skia/skia/font_utils.o
[third_party/blink/renderer/platform:8466/23237] CXX obj/skia/skia/SkFontHost_FreeType.o
[third_party/blink/renderer/platform:21293/23237] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
[third_party/blink/renderer/platform:21345/23237] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
[third_party/blink/renderer/platform:21348/23237] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
ninja -j 4 -C out/Release third_party/blink/renderer/platform
5h 33m 23s
chromium-122.0.6238.2-clean.tar.xz
3319947288
[third_party/blink/renderer/platform:6138/23238] CXX obj/third_party/ots/ots/ots.o
[third_party/blink/renderer/platform:8266/23238] CXX obj/skia/skia/font_utils.o
[third_party/blink/renderer/platform:8464/23238] CXX obj/skia/skia/SkFontHost_FreeType.o
[third_party/blink/renderer/platform:21294/23238] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
[third_party/blink/renderer/platform:21346/23238] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
[third_party/blink/renderer/platform:21349/23238] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
If one divides the 5.5 hours for 23xxx targets to the 58xxx full sets, the expected build time is about 14 hours at 4 cores. On the other hand, from 6 hours gettting to 39546/57874, the lower estimate is 9 hours. Disk space requirement is ~20GB onwards.
4.5 hours building two versions at 48 cores, it comes to be equivalent to about 32 hours at 4 cores. The aarch64 build time of 4 hours at 224 cores is likely very poor parallelism. The setup is about 5:20 minutes vs 3:45 so the arm 64-bit cores are not particularly slow over all.
aarch64/build.log:[headless_shell:8649/42215] CXX obj/third_party/ots/ots/ots.o
aarch64/build.log:[chrome:10645/58803] CXX obj/third_party/ots/ots/ots.o
x86_64/build.log:[headless_shell:8802/41287] CXX obj/third_party/ots/ots/ots.o
x86_64/build.log:[chrome:10684/57889] CXX obj/third_party/ots/ots/ots.o
aarch64/build.log:[headless_shell:14005/42215] CXX obj/skia/skia/fontmgr_default_linux.o
aarch64/build.log:[chrome:18488/58803] CXX obj/skia/skia/fontmgr_default_linux.o
x86_64/build.log:[headless_shell:13961/41287] CXX obj/skia/skia/fontmgr_default_linux.o
x86_64/build.log:[chrome:15222/57889] CXX obj/skia/skia/fontmgr_default_linux.o
aarch64/build.log:[headless_shell:14310/42215] CXX obj/skia/skia/SkFontHost_FreeType.o
aarch64/build.log:[chrome:18812/58803] CXX obj/skia/skia/SkFontHost_FreeType.o
x86_64/build.log:[headless_shell:14173/41287] CXX obj/skia/skia/SkFontHost_FreeType.o
x86_64/build.log:[chrome:15437/57889] CXX obj/skia/skia/SkFontHost_FreeType.o
aarch64/build.log:[headless_shell:38901/42215] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
aarch64/build.log:[chrome:52180/58803] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
x86_64/build.log:[headless_shell:39059/41287] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
x86_64/build.log:[chrome:52154/57889] CXX obj/third_party/blink/renderer/platform/platform/font_format_check.o
aarch64/build.log:[headless_shell:39086/42215] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
aarch64/build.log:[headless_shell:39161/42215] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
aarch64/build.log:[chrome:52326/58803] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
aarch64/build.log:[chrome:52529/58803] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
x86_64/build.log:[headless_shell:39141/41287] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
x86_64/build.log:[headless_shell:39158/41287] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
x86_64/build.log:[chrome:52237/57889] CXX obj/third_party/blink/renderer/platform/platform/web_font_typeface_factory.o
x86_64/build.log:[chrome:52261/57889] CXX obj/third_party/blink/renderer/platform/platform/web_font_decoder.o
$ grep 'ninja -j ' */b*
aarch64/build.log:+ ninja -j 224 -C out/Headless headless_shell
aarch64/build.log:+ ninja -j 224 -C out/Release chrome
aarch64/build.log:+ ninja -j 224 -C out/Release chrome_sandbox
aarch64/build.log:+ ninja -j 224 -C out/Release chromedriver
aarch64/build.log:+ ninja -j 224 -C out/Release policy_templates
x86_64/build.log:+ ninja -j 48 -C out/Headless headless_shell
x86_64/build.log:+ ninja -j 48 -C out/Release chrome
x86_64/build.log:+ ninja -j 48 -C out/Release chrome_sandbox
x86_64/build.log:+ ninja -j 48 -C out/Release chromedriver
x86_64/build.log:+ ninja -j 48 -C out/Release policy_templates
$ grep -i rpm */sta*
aarch64/state.log:2024-01-16 22:45:40,271 - Start: build phase for chromium-120.0.6099.224-1.fc39.src.rpm
aarch64/state.log:2024-01-16 22:45:40,277 - Start: build setup for chromium-120.0.6099.224-1.fc39.src.rpm
aarch64/state.log:2024-01-16 22:51:00,157 - Finish: build setup for chromium-120.0.6099.224-1.fc39.src.rpm
aarch64/state.log:2024-01-16 22:51:00,160 - Start: rpmbuild chromium-120.0.6099.224-1.fc39.src.rpm
aarch64/state.log:2024-01-17 02:50:50,299 - Finish: rpmbuild chromium-120.0.6099.224-1.fc39.src.rpm
aarch64/state.log:2024-01-17 02:50:52,155 - Finish: build phase for chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-16 22:44:22,210 - Start: build phase for chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-16 22:44:22,215 - Start: build setup for chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-16 22:48:08,127 - Finish: build setup for chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-16 22:48:08,129 - Start: rpmbuild chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-17 03:23:04,069 - Finish: rpmbuild chromium-120.0.6099.224-1.fc39.src.rpm
x86_64/state.log:2024-01-17 03:23:05,862 - Finish: build phase for chromium-120.0.6099.224-1.fc39.src.rpm