commit 75e1f4c028c956064d351196605dfa557b318d30
author Chris Dalton <csmartdalton@google.com> Wed Oct 27 10:05:23 2021 -0600
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> Wed Oct 27 16:39:36 2021 +0000
tree 9d01a09252e14ef98a4eafe7f2b54ef909062f45
parent c77620c308f9e3c9f8246ef663bb43183336ab75

Lift recursive curve culling out of tessellators

We need recursive chopping/culling logic in order to draw
astronomically large paths. But rather than do that at the same time
the tessellators chop curves, this CL moves that logic into an
SkPath -> SkPath transformation that runs ahead of time (and only if
the path is extremely large to begin with). This will enable us to
remove recursion from the tessellators and quickly determine ahead of
time the size of buffers they need.

Bug: skia:12524
Change-Id: Ib2800fb23054f1548501811203173e58273fbc83
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/463936
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

samplecode/SamplePathTessellators.cpp

diff --git a/samplecode/SamplePathTessellators.cpp b/samplecode/SamplePathTessellators.cpp
index 824cbb7..ab92f8a 100644
--- a/samplecode/SamplePathTessellators.cpp
+++ b/samplecode/SamplePathTessellators.cpp
@@ -122,7 +122,7 @@
                                                           caps);
                 break;
         }
-        fTessellator->prepare(flushState, this->bounds(), {pathMatrix, fPath}, fPath.countVerbs());
+        fTessellator->prepare(flushState, {pathMatrix, fPath}, fPath.countVerbs());
         fProgram = GrTessellationShader::MakeProgram({alloc, flushState->writeView(),
                                                      flushState->usesMSAASurface(),
                                                      &flushState->dstProxyView(),