6f5e77a08f
When triangles get too thin it's possible for FP round-off error to actually give us the wrong winding direction, causing rendering artifacts. This change also allows us to unblacklist ANGLE. Bug: skia:7805 Bug: skia:7820 Change-Id: Ibaa0f033eba625d720e3a594c4515d8264cc413d Reviewed-on: https://skia-review.googlesource.com/123262 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Chris Dalton <csmartdalton@google.com>
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/*
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* Copyright 2018 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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#if SK_SUPPORT_GPU
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#include "ccpr/GrCCGeometry.h"
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#include "SkGeometry.h"
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static int kNumBaseLoops = 50000;
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class GrCCGeometryBench : public Benchmark {
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public:
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GrCCGeometryBench(float x0, float y0, float x1, float y1,
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float x2, float y2, float x3, float y3, const char* extraName) {
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fPoints[0].set(x0, y0);
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fPoints[1].set(x1, y1);
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fPoints[2].set(x2, y2);
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fPoints[3].set(x3, y3);
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fPoints[4].set(x0, y0); // Flat closing edge.
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fName = "ccprgeometry";
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switch (SkClassifyCubic(fPoints)) {
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case SkCubicType::kSerpentine:
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fName.append("_serp");
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break;
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case SkCubicType::kLoop:
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fName.append("_loop");
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break;
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default:
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SK_ABORT("Unexpected cubic type");
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break;
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}
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fName.appendf("_%s", extraName);
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}
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bool isSuitableFor(Backend backend) override {
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return backend == kNonRendering_Backend;
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}
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const char* onGetName() override {
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return fName.c_str();
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}
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void onDraw(int loops, SkCanvas*) override {
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for (int j = 0; j < loops; ++j) {
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fGeometry.beginContour(fPoints[0]);
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for (int i = 0; i < kNumBaseLoops; ++i) {
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fGeometry.cubicTo(fPoints);
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fGeometry.lineTo(fPoints+3);
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}
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fGeometry.endContour();
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fGeometry.reset();
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}
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}
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private:
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SkPoint fPoints[5];
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SkString fName;
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GrCCGeometry fGeometry{4*100*kNumBaseLoops, 2*100*kNumBaseLoops};
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typedef Benchmark INHERITED;
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};
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// Loops.
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DEF_BENCH( return new GrCCGeometryBench(529.049988f, 637.050049f, 335.750000f, -135.950012f,
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912.750000f, 560.949951f, 59.049988f, 295.950012f,
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"2_roots"); )
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DEF_BENCH( return new GrCCGeometryBench(182.050003f, 300.049988f, 490.750000f, 111.049988f,
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482.750000f, 500.950012f, 451.049988f, 553.950012f,
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"1_root"); )
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DEF_BENCH( return new GrCCGeometryBench(498.049988f, 476.049988f, 330.750000f, 330.049988f,
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222.750000f, 389.950012f, 169.049988f, 542.950012f,
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"0_roots"); )
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// Serpentines.
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DEF_BENCH( return new GrCCGeometryBench(529.049988f, 714.049988f, 315.750000f, 196.049988f,
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484.750000f, 110.950012f, 349.049988f, 630.950012f,
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"2_roots"); )
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DEF_BENCH( return new GrCCGeometryBench(513.049988f, 245.049988f, 73.750000f, 137.049988f,
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508.750000f, 657.950012f, 99.049988f, 601.950012f,
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"1_root"); )
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DEF_BENCH( return new GrCCGeometryBench(560.049988f, 364.049988f, 217.750000f, 314.049988f,
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21.750000f, 364.950012f, 83.049988f, 624.950012f,
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"0_roots"); )
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#endif
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