In the fillFetchLinear function the offset parameter was removed.
The destination address may be shifted directly in the dst parameter,
it doesn't need to be passed separately.
previously alpha multiplying operation doesn't have perfect precision,
could loss 1 pixel since it divides 255 values by 256.
This improved operation comply with both precision & performance.
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
The alpha value calculation pulled out outside the inner loop
to reduce the number of unnecessary operations.
Added local variables to reduce the number of costly
multiplications performed in a loop.
* sw_engine: adding a gradient as a stroke feature
Similarly as a shape may have a gradient fill so can the stroke.
* Capi: adding APIs for a gradient stroke
Co-authored-by: Hermet Park <hermetpark@gmail.com>
added a routine that draw non-transformed translucent image.
composition images will use this routine to draw faster.
Also added optimization point comments in raster image.
Renamed internal interfaces.
We need both blender & compositor interfaces.
Renamed SwCompositor -> SwBlender which is for pixel joining methods.
Added (SwCompositor, Compositor) which is designed for compositing images.
Introduce RendererMethod::renderRegion() to return acutal drawing region info.
That is used by scene composition to composite actual partial drawing region
for better performance.
@Issues: 173
Move the prepare stage of shape & stroking composition stage to a separate function
this returns SwImage to use in composite stage.
Also clear partial region buffer since we know composition area.
* sw_engine raster: code refactoring & optimize code.
1. move the computation out of rolling if possible.
2. renamed internal variables & function prototypes.
Add RawLoader class that loads and display raw images,
and adds a Rasterizer for image data.
Image data can be loaded via picture.
Loaded image supports Composition, Transformation and Alpha blending.
New API
Result load(uint32_t* data, uint32_t width, uint32_t height, bool isCopy) noexcept;
we should avoid code insertion during file dependencies,
such as #include "xxx.h" which has implementations.
This could increase binary size, we can avoid it as possible.
Current patch improves binary size like this:
From: file(2059008) = text(120360) data(8096) bss(80) dec(128536)
To : file(1921832) = text(118429) data(7872) bss(56) dec(126357)
More additional patches will come in to optmize binary size.
remove unnecessary condition.
implementation won't be included multiple times not like headers.
Thus this condition is unnecessary.
Change-Id: Id37e675c40ce7213a06c950da8e5ca17ff7245c9
Actually Dali rendering system requires abgr8888.
We could add more colorspaces if it's necessary.
Change-Id: Ia42a6575d1313629e55efc3077e302992c47b6c0
We can use RGBA colorspace rather ARGB for pixel data.
This would be better for many rendering system,
since it's more widely preferred than ARGB including opengl.
Change-Id: Ibbfe6a511d77bf0ef30ce261995467c11164d306
we can't control any threads count that could drop the performance.
remove async() and will come back with fine-tuned threading-pool.
Change-Id: I17c39792234acfce6db334abc0ce12da23978a9a
these conversions are intented, we explicity use casting so that compiler doesn't
catch them anymore.
Change-Id: I9d905c7562c43929b040d034e5ee0d14c6750a80
Some user have no idea of premultiplied alpha concept,
We suggest more user-friendly interfaces so that they don't confuse it.
Now, this pre-multipying is acommplished by backend engines.
Change-Id: Ifd84d56361cb56a8b98240bbd16690accf370bad
avx is the cutting edge method for intel & amd cpus simd instruction.
We are going to support this feature for the desktop environment (instead of sse)
You can turn on this with configuration something like this:
$meson . build -Dvectors=avx
Current patch supports only for raster solid color
Change-Id: I068ba30a1f63d480415e2762f8021fc8d6d28a39
if the rectangle is not transformed, we don't need to use rle method.
we can directly raster pixels onto the bounding box.
Change-Id: I4e8b57149c0bcd78124d09388bf5115093a43bee
memset() is more than 10x faster than manual loop.
Thus we replace it to manipulate buffer pixels.
Change-Id: If0f255578f7d49ff6704c4f15e2eefe435cc3c15
