tvg sw_engine tries to skip composition as far as its doable,
it tries composition only if the translucent shape with stroking is there.
There has been a condition bug that composition is applied unnecessarily
even if stroking is disabled. This resulted in broken blending
at gradient filling since it applied alpha values multiple times.
Issues:
https://github.com/Samsung/thorvg/issues/445
The PaintType enum was used to set the paint type in the internal Paint
implementation. This solution is switched to an identifier with id() getter,
so that the information about the type can be reached from outside the Paint.
The ColorStop offset < 0 and > 1 should be treated as 0 and 1 respectively.
The offset value < than the previous offset value should be replaced
by the previous value - without this change segfault occurred.
Validating the APIs parameters values is the user responsibility.
FileType order was changed in tvgLoaderMgr.h to move Tvg at the beginning.
When raw data loading [LoaderMgr::loader(data, size)], loaders are tried
one by one (in order according to the FileType enum) until the correct loader
is found.
When using EFL and load edj, multiple loader(data, size) with tvg data may be
called. This change should improve performance in that case.
This patch introduces tvg loader module for loading .tvg binary files.
This allows to load and reuse pregenerated scene.
tvg file format:
.tvg is a binary file format designed for saving/restoring the scene content.
It allows to save scenes and reuse them in other apps or to restore state of
the application.
@Example:
auto picture = tvg::Picture::gen();
picture->load(EXAMPLE_DIR"/tvg_file.tvg");
canvas->push(move(picture));
@API Additions:
Result paint(std::unique_ptr<Paint> paint) noexcept;
@Issue: Issue ticket is #375.
When canvas width was smaller than its stride and a composition is used,
the plots were drawn incorrectly. This is fixed by setting the image width
(image from a compositor) to be equal to the surface stride, instead of its width.
The image data are now allocated accordingly the fixed image width.
This patch introduces tvgTvgHelper.h file that contains base definitions used
for .tvg loader and saver modules. Indicators, flags and sizes are defined
and base tvgBlock struct is declared here.
'tvgTvgHelper.h' file is essential only for .tvg loader/saver module and it
doesn't affect any other file. Loader and saver modules itself are introduced
in other, further patches.
.tvg is a binary file format designed for saving/restoring the scene content.
It allows to save scenes and reuse them in other apps or to restore state of
the application.
When memory is not allocated successully, it must return the FailedAllocation as the return value.
Previous initializer wrongly returns the value that case, this corrects it.
changed alpha channel data type to 32 bits from 8 bits,
since subsequent data operations requires 32 bits values.
this 8 bits (since channel range is up to 255) doesn't helpful
for saving memory size because it would generate additional data casting by compiler.
I compared the binary size and this patch saves about 600bytes.
