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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #include "core/platform/graphics/gpu/DrawingBuffer.h"
     34 
     35 #include "core/platform/graphics/GraphicsContext3D.h"
     36 #include "core/tests/FakeWebGraphicsContext3D.h"
     37 #include "public/platform/Platform.h"
     38 #include "wtf/RefPtr.h"
     39 
     40 #include <gmock/gmock.h>
     41 #include <gtest/gtest.h>
     42 
     43 using namespace WebCore;
     44 using namespace WebKit;
     45 using testing::Test;
     46 using testing::_;
     47 
     48 namespace {
     49 
     50 class FakeContextEvictionManager : public ContextEvictionManager {
     51 public:
     52     void forciblyLoseOldestContext(const String& reason) { }
     53     IntSize oldestContextSize() { return IntSize(); }
     54 };
     55 
     56 } // namespace
     57 
     58 class DrawingBufferTest : public Test {
     59 protected:
     60     virtual void SetUp()
     61     {
     62         RefPtr<FakeContextEvictionManager> contextEvictionManager = adoptRef(new FakeContextEvictionManager());
     63         RefPtr<GraphicsContext3D> context = GraphicsContext3D::createGraphicsContextFromWebContext(adoptPtr(new FakeWebGraphicsContext3D));
     64         const IntSize size(100, 100);
     65         m_drawingBuffer = DrawingBuffer::create(context.get(), size, DrawingBuffer::Discard, contextEvictionManager.release());
     66     }
     67 
     68     RefPtr<DrawingBuffer> m_drawingBuffer;
     69 };
     70 
     71 namespace {
     72 
     73 TEST_F(DrawingBufferTest, verifyNoNewBuffersAfterContextLostWithMailboxes)
     74 {
     75     // Tell the buffer its contents changed and context was lost.
     76     m_drawingBuffer->markContentsChanged();
     77     m_drawingBuffer->releaseResources();
     78 
     79     WebKit::WebExternalTextureMailbox mailbox;
     80     EXPECT_FALSE(m_drawingBuffer->prepareMailbox(&mailbox, 0));
     81 }
     82 
     83 } // namespace
     84