a1ebeb25e9
This drives me nuts, and prevents `while (loops --> 0)`. BUG=skia: Review URL: https://codereview.chromium.org/1379923005
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
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/*
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* Copyright 2011 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 "SkRandom.h"
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#include "SkRegion.h"
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#include "SkString.h"
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static bool union_proc(SkRegion& a, SkRegion& b) {
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SkRegion result;
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return result.op(a, b, SkRegion::kUnion_Op);
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}
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static bool sect_proc(SkRegion& a, SkRegion& b) {
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SkRegion result;
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return result.op(a, b, SkRegion::kIntersect_Op);
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}
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static bool diff_proc(SkRegion& a, SkRegion& b) {
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SkRegion result;
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return result.op(a, b, SkRegion::kDifference_Op);
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}
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static bool diffrect_proc(SkRegion& a, SkRegion& b) {
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SkRegion result;
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return result.op(a, b.getBounds(), SkRegion::kDifference_Op);
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}
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static bool diffrectbig_proc(SkRegion& a, SkRegion& b) {
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SkRegion result;
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return result.op(a, a.getBounds(), SkRegion::kDifference_Op);
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}
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static bool containsrect_proc(SkRegion& a, SkRegion& b) {
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SkIRect r = a.getBounds();
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r.inset(r.width()/4, r.height()/4);
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(void)a.contains(r);
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r = b.getBounds();
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r.inset(r.width()/4, r.height()/4);
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return b.contains(r);
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}
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static bool sectsrgn_proc(SkRegion& a, SkRegion& b) {
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return a.intersects(b);
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}
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static bool sectsrect_proc(SkRegion& a, SkRegion& b) {
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SkIRect r = a.getBounds();
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r.inset(r.width()/4, r.height()/4);
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return a.intersects(r);
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}
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static bool containsxy_proc(SkRegion& a, SkRegion& b) {
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const SkIRect& r = a.getBounds();
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const int dx = r.width() / 8;
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const int dy = r.height() / 8;
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for (int y = r.fTop; y < r.fBottom; y += dy) {
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for (int x = r.fLeft; x < r.fRight; x += dx) {
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(void)a.contains(x, y);
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}
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}
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return true;
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}
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class RegionBench : public Benchmark {
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public:
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typedef bool (*Proc)(SkRegion& a, SkRegion& b);
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SkRegion fA, fB;
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Proc fProc;
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SkString fName;
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enum {
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W = 1024,
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H = 768,
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};
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SkIRect randrect(SkRandom& rand) {
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int x = rand.nextU() % W;
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int y = rand.nextU() % H;
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int w = rand.nextU() % W;
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int h = rand.nextU() % H;
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return SkIRect::MakeXYWH(x, y, w >> 1, h >> 1);
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}
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RegionBench(int count, Proc proc, const char name[]) {
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fProc = proc;
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fName.printf("region_%s_%d", name, count);
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SkRandom rand;
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for (int i = 0; i < count; i++) {
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fA.op(randrect(rand), SkRegion::kXOR_Op);
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fB.op(randrect(rand), SkRegion::kXOR_Op);
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}
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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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protected:
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const char* onGetName() override { return fName.c_str(); }
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void onDraw(int loops, SkCanvas* canvas) override {
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Proc proc = fProc;
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for (int i = 0; i < loops; ++i) {
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proc(fA, fB);
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}
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}
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private:
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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#define SMALL 16
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DEF_BENCH(return new RegionBench(SMALL, union_proc, "union");)
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DEF_BENCH(return new RegionBench(SMALL, sect_proc, "intersect");)
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DEF_BENCH(return new RegionBench(SMALL, diff_proc, "difference");)
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DEF_BENCH(return new RegionBench(SMALL, diffrect_proc, "differencerect");)
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DEF_BENCH(return new RegionBench(SMALL, diffrectbig_proc, "differencerectbig");)
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DEF_BENCH(return new RegionBench(SMALL, containsrect_proc, "containsrect");)
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DEF_BENCH(return new RegionBench(SMALL, sectsrgn_proc, "intersectsrgn");)
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DEF_BENCH(return new RegionBench(SMALL, sectsrect_proc, "intersectsrect");)
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DEF_BENCH(return new RegionBench(SMALL, containsxy_proc, "containsxy");)
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