00b621cfc0
This should be a drop-in replacement for most for-loops to make them run in parallel:
for (int i = 0; i < N; i++) { code... }
~~~>
sk_parallel_for(N, [&](int i) { code... });
This is just syntax sugar over SkTaskGroup to make this use case really easy to write.
There's no more overhead that we weren't already forced to add using an interface like batch(),
and no extra heap allocations.
I've replaced 3 uses of SkTaskGroup with sk_parallel_for:
1) My unit tests for SkOnce.
2) Cary's path fuzzer.
3) SkMultiPictureDraw.
Performance should be the same. Please compare left and right for readability. :)
BUG=skia:
No public API changes.
TBR=reed@google.com
Review URL: https://codereview.chromium.org/1184373003
23 lines
542 B
C++
23 lines
542 B
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "PathOpsExtendedTest.h"
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#include "PathOpsThreadedCommon.h"
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#include "SkTaskGroup.h"
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PathOpsThreadedTestRunner::~PathOpsThreadedTestRunner() {
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for (int index = 0; index < fRunnables.count(); index++) {
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SkDELETE(fRunnables[index]);
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}
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}
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void PathOpsThreadedTestRunner::render() {
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sk_parallel_for(fRunnables.count(), [&](int i) {
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fRunnables[i]->run();
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});
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}
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