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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /canvas/source/opengl/ogl_texturecache.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'canvas/source/opengl/ogl_texturecache.hxx')
-rw-r--r-- | canvas/source/opengl/ogl_texturecache.hxx | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/canvas/source/opengl/ogl_texturecache.hxx b/canvas/source/opengl/ogl_texturecache.hxx new file mode 100644 index 000000000..8d0a425ce --- /dev/null +++ b/canvas/source/opengl/ogl_texturecache.hxx @@ -0,0 +1,60 @@ +/* -*- 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: */ |