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1 /*
2  * Copyright 2016 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "SkTypes.h"
9 #include "Test.h"
10 
11 #if SK_SUPPORT_GPU
12 
13 #include "GrWindowRectangles.h"
14 
next_irect(SkRandom & r)15 static SkIRect next_irect(SkRandom& r) {
16     return {r.nextS(), r.nextS(), r.nextS(), r.nextS()};
17 }
18 
DEF_TEST(WindowRectangles,reporter)19 DEF_TEST(WindowRectangles, reporter) {
20     SkRandom r;
21 
22     SkIRect windowData[GrWindowRectangles::kMaxWindows];
23     for (int i = 0; i < GrWindowRectangles::kMaxWindows; ++i) {
24         windowData[i] = next_irect(r);
25     }
26 
27     GrWindowRectangles wr;
28     for (int i = 0; i < GrWindowRectangles::kMaxWindows - 1; ++i) {
29         REPORTER_ASSERT(reporter, wr.count() == i);
30         REPORTER_ASSERT(reporter, !memcmp(wr.data(), windowData, i * sizeof(SkIRect)));
31 
32         GrWindowRectangles wr2(wr);
33         REPORTER_ASSERT(reporter, wr2 == wr);
34         REPORTER_ASSERT(reporter, wr2.count() == wr.count());
35         REPORTER_ASSERT(reporter, !memcmp(wr2.data(), wr.data(), i * sizeof(SkIRect)));
36 
37         wr.addWindow(windowData[i]);
38     }
39 
40     SkASSERT(wr.count() == GrWindowRectangles::kMaxWindows - 1);
41     {
42         GrWindowRectangles A(wr), B(wr);
43         REPORTER_ASSERT(reporter, B == A);
44         REPORTER_ASSERT(reporter, B.data() == A.data()); // Should use copy-on-write.
45 
46         A.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
47         REPORTER_ASSERT(reporter, B.data() != A.data());
48         REPORTER_ASSERT(reporter, B != A);
49 
50         B.addWindow(SkIRect::MakeLargest());
51         REPORTER_ASSERT(reporter, B != A);
52 
53         REPORTER_ASSERT(reporter, !memcmp(A.data(), windowData,
54                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
55         REPORTER_ASSERT(reporter, !memcmp(B.data(), windowData,
56                                           (GrWindowRectangles::kMaxWindows - 1) * sizeof(SkIRect)));
57         REPORTER_ASSERT(reporter,
58                         B.data()[GrWindowRectangles::kMaxWindows - 1] == SkIRect::MakeLargest());
59     }
60     {
61         GrWindowRectangles A(wr), B(wr);
62         REPORTER_ASSERT(reporter, B == A);
63         REPORTER_ASSERT(reporter, B.data() == A.data()); // Should use copy-on-write.
64 
65         A.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
66         B.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
67         REPORTER_ASSERT(reporter, B == A);
68         REPORTER_ASSERT(reporter, B.data() != A.data());
69         REPORTER_ASSERT(reporter, !memcmp(B.data(), A.data(),
70                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
71         REPORTER_ASSERT(reporter, !memcmp(A.data(), windowData,
72                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
73     }
74 }
75 
76 #endif
77