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 #include "SkRectPriv.h"
15 
16 static SkIRect next_irect(SkRandom& r) {
17     return {r.nextS(), r.nextS(), r.nextS(), r.nextS()};
18 }
19 
20 DEF_TEST(WindowRectangles, reporter) {
21     SkRandom r;
22 
23     SkIRect windowData[GrWindowRectangles::kMaxWindows];
24     for (int i = 0; i < GrWindowRectangles::kMaxWindows; ++i) {
25         windowData[i] = next_irect(r);
26     }
27 
28     GrWindowRectangles wr;
29     for (int i = 0; i < GrWindowRectangles::kMaxWindows - 1; ++i) {
30         REPORTER_ASSERT(reporter, wr.count() == i);
31         REPORTER_ASSERT(reporter, !memcmp(wr.data(), windowData, i * sizeof(SkIRect)));
32 
33         GrWindowRectangles wr2(wr);
34         REPORTER_ASSERT(reporter, wr2 == wr);
35         REPORTER_ASSERT(reporter, wr2.count() == wr.count());
36         REPORTER_ASSERT(reporter, !memcmp(wr2.data(), wr.data(), i * sizeof(SkIRect)));
37 
38         wr.addWindow(windowData[i]);
39     }
40 
41     SkASSERT(wr.count() == GrWindowRectangles::kMaxWindows - 1);
42     {
43         GrWindowRectangles A(wr), B(wr);
44         REPORTER_ASSERT(reporter, B == A);
45         REPORTER_ASSERT(reporter, B.data() == A.data()); // Should use copy-on-write.
46 
47         A.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
48         REPORTER_ASSERT(reporter, B.data() != A.data());
49         REPORTER_ASSERT(reporter, B != A);
50 
51         B.addWindow(SkRectPriv::MakeILarge());
52         REPORTER_ASSERT(reporter, B != A);
53 
54         REPORTER_ASSERT(reporter, !memcmp(A.data(), windowData,
55                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
56         REPORTER_ASSERT(reporter, !memcmp(B.data(), windowData,
57                                           (GrWindowRectangles::kMaxWindows - 1) * sizeof(SkIRect)));
58         REPORTER_ASSERT(reporter,
59                         B.data()[GrWindowRectangles::kMaxWindows - 1] == SkRectPriv::MakeILarge());
60     }
61     {
62         GrWindowRectangles A(wr), B(wr);
63         REPORTER_ASSERT(reporter, B == A);
64         REPORTER_ASSERT(reporter, B.data() == A.data()); // Should use copy-on-write.
65 
66         A.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
67         B.addWindow(windowData[GrWindowRectangles::kMaxWindows - 1]);
68         REPORTER_ASSERT(reporter, B == A);
69         REPORTER_ASSERT(reporter, B.data() != A.data());
70         REPORTER_ASSERT(reporter, !memcmp(B.data(), A.data(),
71                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
72         REPORTER_ASSERT(reporter, !memcmp(A.data(), windowData,
73                                           GrWindowRectangles::kMaxWindows * sizeof(SkIRect)));
74     }
75 }
76 
77 #endif
78