libreoffice/canvas/source/opengl/ogl_texturecache.hxx
George Bateman df9ff47f98 tdf#124176 Use #pragma once in canvas
This commit was carried out by a Python script, source of which
is at https://bugs.documentfoundation.org/show_bug.cgi?id=124176#c97.

Change-Id: Icd712adf20fa2dbaaea2fc33a0fd870c8595b7e2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100147
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
2020-09-04 08:55:42 +02:00

61 lines
1.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#pragma once
#include <sal/types.h>
#include <unordered_map>
namespace com::sun::star::geometry { struct IntegerSize2D; }
namespace oglcanvas
{
class TextureCache
{
public:
TextureCache();
~TextureCache();
/// clear whole cache, reset statistic counters
void flush();
/** prune old entries from cache
Every time this method is called, all cache entries are set
to "old". If subsequently not used by getTexture(),
they'll be entitled for expunge on the next prune()
call. Resets statistic counters.
*/
void prune();
/// Statistics
size_t getCacheSize() const { return maCache.size(); };
sal_uInt32 getCacheMissCount() const { return mnMissCount; }
sal_uInt32 getCacheHitCount() const { return mnHitCount; }
unsigned int getTexture( const css::geometry::IntegerSize2D& rPixelSize,
const sal_Int8* pPixel,
sal_uInt32 nPixelCrc32) const;
private:
struct CacheEntry
{
CacheEntry() : nTexture(0), bOld(false) {}
unsigned int nTexture;
bool bOld;
};
typedef std::unordered_map<sal_uInt32,CacheEntry> TextureCacheMapT;
mutable TextureCacheMapT maCache;
mutable sal_uInt32 mnMissCount;
mutable sal_uInt32 mnHitCount;
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */