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148 commits

Author SHA1 Message Date
msiglreith
eed71721eb Update winit example 2020-06-14 23:32:59 +02:00
Raph Levien
65f802894c Merge branch 'master' into sorta 2020-06-13 07:30:40 -07:00
Raph Levien
b23113461b Minor cleanups 
Get rid of warnings. Do cargo update to bump deps.
 2020-06-10 14:10:28 -07:00
Raph Levien
b571e0d10c Continue wiring up gpu-side flattening 
All segments given to path coarse raster are cubics. Flatten to
quadratics.

This works but the quality is not (yet) good.
 2020-06-09 17:56:11 -07:00
Raph Levien
0f44bc8b78 Start GPU-side flattening 
This starts the work on GPU-side flattening by plumbing curves through.
 2020-06-09 16:01:47 -07:00
Raph Levien
af0a1af8e1 Make fills work 
The backdrop propagation is slow but it does work.
 2020-06-05 22:40:44 -07:00
Raph Levien
63ba45c774 Fix performance issues 
Use larger workgroup for tile initialization (utilization was poor).
Provide correct element count to coarse rasterizer.
 2020-06-03 15:32:58 -07:00
Raph Levien
70a9c17e23 Continue building out pipeline 
Plumbs the new tiling scheme to k4. This works (stroke only) but still
has some performance issues.
 2020-06-03 12:21:09 -07:00
Raph Levien
294f6fd1db Experiment with new sorting scheme 
Path segments are unsorted, but other elements are using the same
sort-middle approach as before.

This is a checkpoint. At this point, there are unoptimized versions
of tile init and coarse path raster, but it isn't wired up into a
working pipeline. Also observing about a 3x performance regression in
element processing, which needs to be investigated.
 2020-06-03 09:29:25 -07:00
Raph Levien
f3cb904f86 Add command line args for loading svg 2020-05-31 09:57:25 -07:00
Raph Levien
c603cafc6c Merge branch 'more_svg' into new_merge 2020-05-31 09:19:34 -07:00
Raph Levien
121f29fef6 Merge one segment at a time 
No parallelism yet, but seems to improve performance.
 2020-05-30 08:51:52 -07:00
Raph Levien
894ef156e1 Change to new merge strategy in binning 
WIP

We get "device lost" on NV :/
 2020-05-29 20:06:16 -07:00
Raph Levien
3e83972606 Improve SVG parsing 
WIP
 2020-05-28 11:48:36 -07:00
Raph Levien
dbcffb10db Reinstate fills 
Add fills back in.
 2020-05-25 15:27:03 -07:00
Raph Levien
8eaf49a04d Checkpoint parallel output 
Parallel segment output seems to be working for strokes.
 2020-05-25 12:14:18 -07:00
Raph Levien
24b3def0a1 Start work on parallel segment output 
Output of segments is in parallel. Getting closer, some problems with
chaining but mostly correct.
 2020-05-24 21:02:19 -07:00
Raph Levien
a616b4d010 Rework right_edge computation in elements 
Trying to fit it into the fancy monad doesn't really work, so use a
more straightforward approach to compute it from the aggregate.

Also add yEdge logic (basically copying piet-metal). With a fix to
ELEMENT_BINNING_RATIO (which I had simply gotten wrong), the example
renders almost correctly, with small bounding box artifacts.
 2020-05-21 10:00:56 -07:00
Raph Levien
ed4ed30708 Adding backdrop logic 
Calculation of backdrops kinda works but with issues, so WIP.
 2020-05-20 16:03:27 -07:00
Raph Levien
076e6d600d Progress on wiring up fills 
Write the right_edge to the binning output.

More work on encoding the fill/stroke distinction and plumbing that
through the pipeline. This is a bit unsatisfying because of the code
duplication; having an extra fill/stroke bool might be better, but I
want to avoid making the structs bigger (this could be solved by
better packing in the struct encoding).

Fills are plumbed through to the last stage. Backdrop is WIP.
 2020-05-20 11:14:19 -07:00
Raph Levien
03da52cff8 Start implementing fills 
This should get the "right_edge" value for each segment plumbed through
to the binning phase. It also needs to be plumbed to coarse raster and
wired up there.

Also considering WIP because none of this logic has been tested yet.
 2020-05-19 20:40:04 -07:00
Raph Levien
9bb06ec340 Correct rendering (on Intel) 
Handle multiple passes in coarse raster. Doesn't work on NV, WIP to
find out why.
 2020-05-16 06:43:31 -07:00
Raph Levien
93044b469b Fix prefix sum 
First, add decoupled lookback.

Second, fix problem with monoid that was overly aggressive in resetting
the bbox.
 2020-05-15 20:09:39 -07:00
Raph Levien
868b0320a4 Render strokes 
As of this point, it mostly renders stroke outlines for tiger. Some
dropouts are because the scan in the elements pass doesn't do lookback
yet, others are probably a bug.
 2020-05-15 17:38:17 -07:00
Raph Levien
1240da3870 Delete old-style kernels and buffers 
Pave the way for the coarse raster pass to write to the ptcl buffer.
 2020-05-15 15:24:37 -07:00
Raph Levien
3a6428238b Start writing tiles 
This is the first checkpoint where it actually runs a pipeline end to
end, though it's far from accurate.
 2020-05-15 14:31:52 -07:00
Raph Levien
cc89d0e285 Starting coarse rasterizer 
Working down the pipeline.

WIP
 2020-05-13 21:39:47 -07:00
Raph Levien
343e4c3075 Binning stage 
Adds a binning stage. This is a first draft, and a number of loose ends
exist.
 2020-05-12 17:34:15 -07:00
Raph Levien
736f883f66 Store annotated elements 
Apply transform to paths and annotate with computed linewidth and
bounding box information, storing the result.
 2020-05-12 12:13:39 -07:00
Raph Levien
9a8854ffab Experimenting with sort-middle 
Starting a prototype that explores the sort-middle approach. This
commit has a prefix sum pass computing state per element.
 2020-05-12 08:54:09 -07:00
Raph Levien
8d01aba237 Update to piet 0.13 
Get rid of kurbo patch, as we now use kurbo through piet. Also clean up
some warnings.
 2020-05-12 08:26:48 -07:00
msiglreith
e2ed54361d Fix rebase issues and split into library and cli/winit binaries 2020-05-04 17:05:54 +02:00
msiglreith
b38e43f0c2 Initial work for surface support 
surface: handle extensions

Implement swapchain creation and blit image to screen
 2020-05-04 16:24:42 +02:00
Raph Levien
dcdd35e0b8 Implement solid color cmd 
Avoids empty fill segment list, which was a minor bug.

Also increase tolerance to 0.25 to juice performance.
 2020-05-02 10:53:16 -07:00
Raph Levien
aa83d782ed Fills 
Adds fills, and has more or less working tiger render (with artifacts).
 2020-05-01 19:42:20 -07:00
Raph Levien
19ecd0a158
Merge pull request #3 from linebender/chunk_segments 
Use linked list strategy for segments
 2020-04-30 21:40:04 -07:00
Raph Levien
aa8b71e922 Reset query pool before use 
Quiets validation errors now that we can see them :)
 2020-04-29 18:18:04 -07:00
Raph Levien
b23fe25177 Use linked list strategy for segments 
Trying to allocate them contiguously wasn't good.
 2020-04-28 22:25:57 -07:00
Raph Levien
cb06b1bc3d Implement stroked polylines 
This version seems to work but the allocation of segments has low
utilization. Probably best to allocate in chunks rather than try to
make them contiguous.
 2020-04-28 18:45:59 -07:00
Raph Levien
55e35dd879 Dynamic allocation of intermediate buffers 
When the initial allocation is exceeded, do an atomic bump allocation.
This is done for both tilegroup instances and per tile command lists.
 2020-04-25 10:45:47 -07:00
Raph Levien
e1c0e448ef Encode stroke in scene 
This just adds the first step of polyline stroking, which is adding it
to the scene. Also just a bit of cleaning up of dimensions into one
header file.
 2020-04-25 08:24:46 -07:00
Raph Levien
7528eaff22 Add piet trait 
Use piet render context to encode into scene buffer.

This is adapted from piet-dx12.
 2020-04-22 12:07:56 -07:00
Raph Levien
8d51ccbc74 Add draft kernel 4 
Render from ptcl rather than original scene.
 2020-04-21 19:30:14 -07:00
Raph Levien
6976f877e0 Add first draft of kernel 3 
A fairly simple approach, but it adds the translation (not tested yet
in scene encoding) and does bounding box culling.
 2020-04-21 18:49:50 -07:00
Raph Levien
2ed89dd65e First draft of kernel 1 
Output of kernel 1 is validated by simple inspection, next step is to
wire it up properly.
 2020-04-20 18:07:18 -07:00
Raph Levien
5adb703936 Staging buffers 
Add hal methods to clear and copy buffers, so work happens in device
local buffers.
 2020-04-18 07:46:59 -07:00
Raph Levien
957f710b91 Render random circles 
Poor performance but it renders something.
 2020-04-17 21:18:39 -07:00
Raph Levien
86e52a3f47 Start image rendering 
Populates the piet-gpu subdir, with an extremely simple renderer. The
main program saves the image to a PNG.

Contains a few fixes (I was confused about the need for multiple
bindings, as opposed to multiple descriptors within a binding).
 2020-04-16 14:04:40 -07:00