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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkRandom.h"
#include "SkRegion.h"
#include "SkString.h"
static bool union_proc(SkRegion& a, SkRegion& b) {
SkRegion result;
return result.op(a, b, SkRegion::kUnion_Op);
}
static bool sect_proc(SkRegion& a, SkRegion& b) {
SkRegion result;
return result.op(a, b, SkRegion::kIntersect_Op);
}
static bool diff_proc(SkRegion& a, SkRegion& b) {
SkRegion result;
return result.op(a, b, SkRegion::kDifference_Op);
}
static bool diffrect_proc(SkRegion& a, SkRegion& b) {
SkRegion result;
return result.op(a, b.getBounds(), SkRegion::kDifference_Op);
}
static bool diffrectbig_proc(SkRegion& a, SkRegion& b) {
SkRegion result;
return result.op(a, a.getBounds(), SkRegion::kDifference_Op);
}
static bool containsrect_proc(SkRegion& a, SkRegion& b) {
SkIRect r = a.getBounds();
r.inset(r.width()/4, r.height()/4);
(void)a.contains(r);
r = b.getBounds();
r.inset(r.width()/4, r.height()/4);
return b.contains(r);
}
static bool sectsrgn_proc(SkRegion& a, SkRegion& b) {
return a.intersects(b);
}
static bool sectsrect_proc(SkRegion& a, SkRegion& b) {
SkIRect r = a.getBounds();
r.inset(r.width()/4, r.height()/4);
return a.intersects(r);
}
static bool containsxy_proc(SkRegion& a, SkRegion& b) {
const SkIRect& r = a.getBounds();
const int dx = r.width() / 8;
const int dy = r.height() / 8;
for (int y = r.fTop; y < r.fBottom; y += dy) {
for (int x = r.fLeft; x < r.fRight; x += dx) {
(void)a.contains(x, y);
}
}
return true;
}
class RegionBench : public Benchmark {
public:
typedef bool (*Proc)(SkRegion& a, SkRegion& b);
SkRegion fA, fB;
Proc fProc;
SkString fName;
enum {
W = 1024,
H = 768,
};
SkIRect randrect(SkRandom& rand) {
int x = rand.nextU() % W;
int y = rand.nextU() % H;
int w = rand.nextU() % W;
int h = rand.nextU() % H;
return SkIRect::MakeXYWH(x, y, w >> 1, h >> 1);
}
RegionBench(int count, Proc proc, const char name[]) {
fProc = proc;
fName.printf("region_%s_%d", name, count);
SkRandom rand;
for (int i = 0; i < count; i++) {
fA.op(randrect(rand), SkRegion::kXOR_Op);
fB.op(randrect(rand), SkRegion::kXOR_Op);
}
}
virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
return backend == kNonRendering_Backend;
}
protected:
virtual const char* onGetName() { return fName.c_str(); }
virtual void onDraw(const int loops, SkCanvas* canvas) {
Proc proc = fProc;
for (int i = 0; i < loops; ++i) {
proc(fA, fB);
}
}
private:
typedef Benchmark INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
#define SMALL 16
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, union_proc, "union")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, sect_proc, "intersect")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, diff_proc, "difference")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, diffrect_proc, "differencerect")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, diffrectbig_proc, "differencerectbig")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, containsrect_proc, "containsrect")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, sectsrgn_proc, "intersectsrgn")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, sectsrect_proc, "intersectsrect")); )
DEF_BENCH( return SkNEW_ARGS(RegionBench, (SMALL, containsxy_proc, "containsxy")); )
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