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#include "Test.h"
#include "SkRegion.h"
#include "SkRandom.h"
static void rand_rect(SkIRect* rect, SkRandom& rand) {
int bits = 6;
int shift = 32 - bits;
rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
rand.nextU() >> shift, rand.nextU() >> shift);
rect->sort();
}
static bool test_rects(const SkIRect rect[], int count) {
SkRegion rgn0, rgn1;
for (int i = 0; i < count; i++) {
rgn0.op(rect[i], SkRegion::kUnion_Op);
}
rgn1.setRects(rect, count);
if (rgn0 != rgn1) {
SkDebugf("\n");
for (int i = 0; i < count; i++) {
SkDebugf(" { %d, %d, %d, %d },\n",
rect[i].fLeft, rect[i].fTop,
rect[i].fRight, rect[i].fBottom);
}
SkDebugf("\n");
return false;
}
return true;
}
static void TestRegion(skiatest::Reporter* reporter) {
const SkIRect r2[] = {
{ 0, 0, 1, 1 },
{ 2, 2, 3, 3 },
};
REPORTER_ASSERT(reporter, test_rects(r2, SK_ARRAY_COUNT(r2)));
const SkIRect rects[] = {
{ 0, 0, 1, 2 },
{ 2, 1, 3, 3 },
{ 4, 0, 5, 1 },
{ 6, 0, 7, 4 },
};
REPORTER_ASSERT(reporter, test_rects(rects, SK_ARRAY_COUNT(rects)));
SkRandom rand;
for (int i = 0; i < 1000; i++) {
SkRegion rgn0, rgn1;
const int N = 8;
SkIRect rect[N];
for (int j = 0; j < N; j++) {
rand_rect(&rect[j], rand);
}
REPORTER_ASSERT(reporter, test_rects(rect, N));
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Region", RegionTestClass, TestRegion)
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