| Commit message (Collapse) | Author | Age |
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Don't add an edge if the bottom vertex was already added, or
if an island vertex has a left poly but no right poly.
(Sorry for the lack of test, but the only reduction I could create was still a huge path and only crashes in Chrome.)
BUG=617907
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2043873005
Review-Url: https://codereview.chromium.org/2043873005
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The vertices which are produced by stage 5 of the
tesselator are copied into the Polys and MonotonePolys it
produces. This is necessary because each vertex may have an
arbitrary valence, since it may participate in an arbitrary
number of Polys, so we can't use the vertex's prev/next
pointers to represent all the Monotones of which this
vertex may be a member.
However, each Edge can only be a member of two Polys (one
on each side of the edge). So by adding two prev/next
pointer pairs to each Edge, we can represent each Monotone
as a list of edges instead. Then we no longer need to copy
the vertices.
One wrinkle is that the ear-clipping stage (6) of the
tessellator does require prev/next pointers, in order to
remove vertices as their ears are clipped. So we convert
the edge list into a vertex list during Monotone::emit(),
using the prev/next pointers temporarily for that monotone.
This change improves performance by 7-20% on a non-caching
version of the tessellator, and reduces memory use.
Other notes:
1) Polys are initially constructed empty (no edges), but
with the top vertex, which is needed for splitting
Polys. Edges are added to Polys only after their bottom
vertex is seen.
2) MonotonePolys are always constructed with one edge, so
we always know their handedness (left/right).
MonotonePoly::addEdge() no longer detects when a monotone
is "done" (edge of opposite handedness); this is handled
by Poly::addEdge(), so MonotonePoly::addEdge() has no
return value.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2029243002
Review-Url: https://codereview.chromium.org/2029243002
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GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1842753002
Review URL: https://codereview.chromium.org/1842753002
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This abstracts all vertex allocation out of GrTessellator via a VertexBuffer interface. This removes all GPU-related calls from GrTessellator.
It also factors vertex drawing into GrTessellatingPathRenderer::drawVertices(), and makes tessellate() (now draw() also responsible for drawing. This means the cache hit case is clearer as an early-out,
and storing into cache is done in draw() as well.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1776003002
Review URL: https://codereview.chromium.org/1776003002
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Implement a VertexList, and use it.
Rename insert<> -> list_insert<>.
Rename remove<> -> list_remove<>.
Remove some spurious returns.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1771373002
Review URL: https://codereview.chromium.org/1771373002
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GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1557083002
Committed: https://skia.googlesource.com/skia/+/8b05cb8a00bdb82e100f1ba74bf4de4a504cceea
Review URL: https://codereview.chromium.org/1557083002
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file. (patchset #8 id:240001 of https://codereview.chromium.org/1557083002/ )
Reason for revert:
broke valgrind bot
Original issue's description:
> Broke GrTessellatingPathRenderer's tessellator out into a separate file.
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1557083002
>
> Committed: https://skia.googlesource.com/skia/+/8b05cb8a00bdb82e100f1ba74bf4de4a504cceea
TBR=bsalomon@google.com,joshualitt@chromium.org,senorblanco@chromium.org,ethannicholas@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review URL: https://codereview.chromium.org/1570503002
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GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1557083002
Review URL: https://codereview.chromium.org/1557083002
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senorblanco
halcanary
ethannicholas
caryclark