The Tor Browser: gfx/2d/unittest/TestBugs.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "TestBugs.h"

     7 #include "2D.h"

     8 #include <string.h>

    10 using namespace mozilla;

    11 using namespace mozilla::gfx;

    13 TestBugs::TestBugs()

    14 {

    15   REGISTER_TEST(TestBugs, CairoClip918671);

    16   REGISTER_TEST(TestBugs, PushPopClip950550);

    17 }

    19 void

    20 TestBugs::CairoClip918671()

    21 {

    22   RefPtr<DrawTarget> dt = Factory::CreateDrawTarget(BackendType::CAIRO,

    23                                                     IntSize(100, 100),

    24                                                     SurfaceFormat::B8G8R8A8);

    25   RefPtr<DrawTarget> ref = Factory::CreateDrawTarget(BackendType::CAIRO,

    26                                                      IntSize(100, 100),

    27                                                      SurfaceFormat::B8G8R8A8);

    28   // Create a path that extends around the center rect but doesn't intersect it.

    29   RefPtr<PathBuilder> pb1 = dt->CreatePathBuilder();

    30   pb1->MoveTo(Point(10, 10));

    31   pb1->LineTo(Point(90, 10));

    32   pb1->LineTo(Point(90, 20));

    33   pb1->LineTo(Point(10, 20));

    34   pb1->Close();

    35   pb1->MoveTo(Point(90, 90));

    36   pb1->LineTo(Point(91, 90));

    37   pb1->LineTo(Point(91, 91));

    38   pb1->LineTo(Point(91, 90));

    39   pb1->Close();

    41   RefPtr<Path> path1 = pb1->Finish();

    42   dt->PushClip(path1);

    44   // This center rect must NOT be rectilinear!

    45   RefPtr<PathBuilder> pb2 = dt->CreatePathBuilder();

    46   pb2->MoveTo(Point(50, 50));

    47   pb2->LineTo(Point(55, 51));

    48   pb2->LineTo(Point(54, 55));

    49   pb2->LineTo(Point(50, 56));

    50   pb2->Close();

    52   RefPtr<Path> path2 = pb2->Finish();

    53   dt->PushClip(path2);

    55   dt->FillRect(Rect(0, 0, 100, 100), ColorPattern(Color(1,0,0)));

    57   RefPtr<SourceSurface> surf1 = dt->Snapshot();

    58   RefPtr<SourceSurface> surf2 = ref->Snapshot();

    60   RefPtr<DataSourceSurface> dataSurf1 = surf1->GetDataSurface();

    61   RefPtr<DataSourceSurface> dataSurf2 = surf2->GetDataSurface();

    63   for (int y = 0; y < dt->GetSize().height; y++) {

    64     VERIFY(memcmp(dataSurf1->GetData() + y * dataSurf1->Stride(),

    65                   dataSurf2->GetData() + y * dataSurf2->Stride(),

    66                   dataSurf1->GetSize().width * 4) == 0);

    67   }

    69 }

    71 void

    72 TestBugs::PushPopClip950550()

    73 {

    74   RefPtr<DrawTarget> dt = Factory::CreateDrawTarget(BackendType::CAIRO,

    75                                                     IntSize(500, 500),

    76                                                     SurfaceFormat::B8G8R8A8);

    77   dt->PushClipRect(Rect(0, 0, 100, 100));

    78   Matrix m(1, 0, 0, 1, 45, -100);

    79   dt->SetTransform(m);

    80   dt->PopClip();

    82   // We fail the test if we assert in this call because our draw target's

    83   // transforms are out of sync.

    84   dt->FillRect(Rect(50, 50, 50, 50), ColorPattern(Color(0.5f, 0, 0, 1.0f)));

    85 }

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