fbfa258027
Impl Overview
(1) Keep the device clip bounds up to date. This
requires minimal additional work in a few places
throughout canvas.
(2) Keep track of if the ctm isScaleTranslate. Yes,
there's a function that does this, but it's slow
to call.
(3) Perform the src->device transform in quick reject,
then check intersection/nan.
Other Notes:
(1) NaN and intersection checks are performed
simultaneously.
(2) We no longer quick reject infinity.
(3) Affine and perspective are both handled in the slow
case.
(4) SkRasterClip::isEmpty() is handled by the intersection
check.
Performance on Nexus 6P:
93.2ms -> 59.8ms
Overall Android Jank Tests Performance Impact:
Should gain us a ms or two on some tests.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2225393002
Committed: https://skia.googlesource.com/skia/+/d22a817ff57986407facd16af36320fc86ce02da
Review-Url: https://codereview.chromium.org/2225393002
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
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* Copyright 2016 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 "Benchmark.h"
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#include "SkCanvas.h"
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#include "SkRandom.h"
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class QuickRejectBench : public Benchmark {
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enum { N = 1000000 };
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float fFloats[N];
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int fInts [N];
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const char* onGetName() override { return "quick_reject"; }
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bool isSuitableFor(Backend backend) override { return backend != kNonRendering_Backend; }
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void onDelayedSetup() override {
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SkRandom rand;
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for (int i = 0; i < N; ++i) {
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fFloats[i] = 300.0f * (rand.nextSScalar1() + 0.5f);
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}
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}
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void onDraw(int loops, SkCanvas* canvas) override {
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while (loops --> 0) {
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for (int i = 0; i < N - 4; i++) {
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if (canvas->quickReject(*(SkRect*)(fFloats+i))) {
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fInts[i] = 11;
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} else {
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fInts[i] = 24;
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}
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}
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}
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}
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};
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DEF_BENCH( return new QuickRejectBench; )
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class ConcatBench : public Benchmark {
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SkMatrix fMatrix;
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const char* onGetName() override { return "concat"; }
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bool isSuitableFor(Backend backend) override { return backend != kNonRendering_Backend; }
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void onDelayedSetup() override {
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SkRandom r;
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fMatrix.setScale(5.0f, 5.0f);
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fMatrix.setTranslateX(10.0f);
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fMatrix.setTranslateY(10.0f);
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}
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void onDraw(int loops, SkCanvas* canvas) override {
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while (loops --> 0) {
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canvas->setMatrix(SkMatrix::MakeScale(3.0f));
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canvas->concat(fMatrix);
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}
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}
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};
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DEF_BENCH( return new ConcatBench; )
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