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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 #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