This reduces tvg binary format size by converting PathCommand to more compact size.
This optimization increase +12% compress rate with our example:
195,668 => 174,071 (sum of all converted tvgs from svgs)
@Issues: https://github.com/Samsung/thorvg/issues/639
Pixel-based image picture doesn't work at size() method.
Obvisouly, we missed to implement it properly.
This patch corrects it.
@Issue: https://github.com/Samsung/thorvg/issues/656
tvg saver is a new module to export tvg files.
In this patch, it also contains the infrastructure of saver module
to expand other types of savers such as png, jpg, etc.
To save the tvg file from a paint, you can use the Saver feature, for example:
auto saver = tvg::Saver::gen();
saver->save(paint, "sample.tvg");
saver->sync();
Later, you can read the "sample.tvg" using Picture.
auto picture = tvg::Picture::gen();
picture->load("sample.tvg");
...
The behavior of the saver will work on sync/async based on the threading setting of the initializer.
Thus if you wish to have a benefit of it, you must call sync() after the save() in the proper delayed time.
Otherwise, you can call sync() immediately.
Note that, the asynchronous tasking is depent on the saver module implementation.
Also, you need to enable tvg saver/loader modules from meson option. (yet this feature is under the beta)
@API Addition:
Result Saver::save(std::unique_ptr<Paint> paint, const std::string& path) noexcept;
Result Saver::sync() noexcept;
@Examples: tvgSaver
@Co-author: Mira Grudzinska <m.grudzinska@samsung.com>
Previously the 'test.tvg' file was loaded from the EXAMPLE_DIR.
Now the 'test.tvg' file is created using the tvg saver module
(if in the EXAMPLE_DIR is alread a 'test.tvg' file, it is overwriten)
and then it's loaded using the tvg loader module.
The picture->size() function does not work for raw/png pictures.
As a consequence enabling both, the svg and png file loaders,
resulted in the unintended behavior of the example.
If ClipPath is a singular rectangle,
we don't need to apply this to all children nodes to adjust rle span regions.
Rather than its regular sequence,
we can adjust render region as merging viewport that is introduced internally,
All in all,
If a Paint has a single ClipPath that is Rectangle,
it sets viewport with Rectangle area that viewport is applied to
raster engine to cut off the rendering boundary.
In the normal case it brings trivial effects.
but when use SVGs which has a viewbox, it could increase the performance
up to 10% (profiled with 200 svgs rendering at the same time)
Note that, this won't be applied if the Paint has affine or rotation transform.
@Issues: 294
A duplicated picture needs to access internal picture loader data
to get its properties while rasterizing.
But it missed the loader since it's not copied from origin.
Thus, we fix this by sharing the internal loader among the duplications and origin.
@Examples: Duplicate
* examples: Added resize_cb to Capi example.
resize_cb in capi example is used to verify crash on reize described
in @180 issue.
* examples capi: Fixed file type from dos to unix.
Use the same code style as it is used in other examples.
