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-rw-r--r--WebCore/platform/graphics/chromium/TextureManager.h83
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diff --git a/WebCore/platform/graphics/chromium/TextureManager.h b/WebCore/platform/graphics/chromium/TextureManager.h
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--- a/WebCore/platform/graphics/chromium/TextureManager.h
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-/*
- * Copyright (C) 2010, Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef TextureManager_h
-#define TextureManager_h
-
-#include "GraphicsContext3D.h"
-#include "IntRect.h"
-#include "IntSize.h"
-
-#include <wtf/HashMap.h>
-#include <wtf/ListHashSet.h>
-
-namespace WebCore {
-
-typedef int TextureToken;
-
-class TextureManager : public Noncopyable {
-public:
- static PassOwnPtr<TextureManager> create(GraphicsContext3D* context, size_t memoryLimitBytes, int maxTextureSize)
- {
- return adoptPtr(new TextureManager(context, memoryLimitBytes, maxTextureSize));
- }
-
- TextureToken getToken();
- void releaseToken(TextureToken);
- bool hasTexture(TextureToken);
-
- unsigned requestTexture(TextureToken, IntSize, unsigned textureFormat, bool* newTexture = 0);
-
- void protectTexture(TextureToken);
- void unprotectTexture(TextureToken);
-
-private:
- TextureManager(GraphicsContext3D*, size_t memoryLimitBytes, int maxTextureSize);
-
- struct TextureInfo {
- IntSize size;
- unsigned format;
- unsigned textureId;
- bool isProtected;
- };
-
- bool reduceMemoryToLimit(size_t);
- void addTexture(TextureToken, TextureInfo);
- void removeTexture(TextureToken, TextureInfo);
-
- RefPtr<GraphicsContext3D> m_context;
-
- typedef HashMap<TextureToken, TextureInfo> TextureMap;
- TextureMap m_textures;
- ListHashSet<TextureToken> m_textureLRUSet;
-
- size_t m_memoryLimitBytes;
- size_t m_memoryUseBytes;
- int m_maxTextureSize;
- TextureToken m_nextToken;
-};
-
-}
-
-#endif