qiurui
/
qtdeclarative
mirror of https://github.com/qt/qtdeclarative.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
Qt Declarative (Quick 2)
30,829 Commits 82 Branches 267 Tags 291 MiB
C++ 60.5%
QML 26.7%
JavaScript 9.1%
CMake 2.2%
Objective-C++ 0.4%
Other 1%
Go to file
Eskil Abrahamsen Blomfeldt be813b9955 Introduce hardware accelerated curve renderer for Shapes 
This implements the Loop/Blinn algorithm for quadratic curves
as an optional backend for Qt Quick Shapes, basically distance
fields where the distance to curves are calculated in the
fragment shader.

This means cubic curves are approximated, which will give
varying results, but for many shapes (such as text) this is
efficient and means the shapes can be zoomed indefinitely
while still retaining curvature as well as anti-aliasing
working without MSAA.

Preliminary results give some frame rate improvements
compared to doing MSAA and GeometryRenderer, but the major
improvement is that you can get smooth curves at any zoom
level without re-triangulating the shape.

Note that the renderer currently does not do antialiasing
for straight lines. This would still require MSAA, but at
a lower cost than for GeometryRenderer since there are
much fewer triangles. Adding AA here as well is work in
progress.

Task-number: QTBUG-104122
Done-with: Paul Olav Tvete <paul.tvete@qt.io>
Done-with: Eirik Aavitsland <eirik.aavitsland@qt.io>
Done-with: Amr Elsayed <amr.elsayed@qt.io>
Change-Id: I6b4a1103546fbdfe760906f7a183101f8eedb9d3
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
 		2023-05-26 14:45:21 +02:00
LICENSES Use SPDX license identifiers 2022-06-11 08:05:15 +02:00
cmake Mark RegExpJitTables.h as non-module header 2023-04-03 15:38:57 +02:00
coin QmlDom: Remove the standalone version of QmlDom 2023-05-04 14:01:25 +02:00
dist
…
examples Introduce hardware accelerated curve renderer for Shapes 2023-05-26 14:45:21 +02:00
features
…
src Introduce hardware accelerated curve renderer for Shapes 2023-05-26 14:45:21 +02:00
tests Introduce hardware accelerated curve renderer for Shapes 2023-05-26 14:45:21 +02:00
tools qmltyperegistrar: Improve the file open error message 2023-05-17 15:12:21 +02:00
.cmake.conf Remove QT_USE_SYNCQT_CPP 2023-01-02 19:43:56 +01:00
.gitattributes qmlformat: improve testing of file based options 2021-11-04 13:35:48 +01:00
.gitignore Remove "2" from Qt Quick Controls directories 2022-12-01 10:26:20 +08:00
.gitmodules
…
.tag Use tree hash rather than commit hash in .tag file 2022-01-25 23:55:27 +01:00
CMakeLists.txt Add the use of the qt_internal_project_setup function 2023-04-28 12:51:39 +02:00
README.md Rewrite README.md 2021-08-12 13:15:17 +00:00
configure.cmake Change the license of all CMakeLists.txt and *.cmake files to BSD 2022-09-07 17:01:30 +02:00
dependencies.yaml Update dependencies on 'dev' in qt/qtdeclarative 2023-05-26 10:46:32 +00:00
qt_cmdline.cmake Remove "2" from Qt Quick Controls directories 2022-12-01 10:26:20 +08:00
qtdeclarative.doxy
…
sync.profile qmlls: move into own private static library 2023-02-07 19:23:13 +01:00

README.md

qtdeclarative

The qtdeclarative repository is home to QML, Qt Quick and several related modules:

In addition, there are several Qt Labs modules: