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77 lines
3.5 KiB
C++
77 lines
3.5 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2017 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_MODULE_GLOBEBROWSING___TEXTURE_CONTAINER___H__
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#define __OPENSPACE_MODULE_GLOBEBROWSING___TEXTURE_CONTAINER___H__
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#include <modules/globebrowsing/tile/tiletextureinitdata.h>
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#include <memory>
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#include <vector>
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namespace openspace::globebrowsing::cache {
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/**
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* Owner of texture data used for tiles. Instead of dynamically allocating textures one
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* by one, they are created once and reused.
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*/
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class TextureContainer {
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public:
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/**
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* \param initData is the description of the texture type.
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* \param numTextures is the number of textures to allocate.
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*/
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TextureContainer(TileTextureInitData initData, size_t numTextures);
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~TextureContainer() = default;
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void reset();
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void reset(size_t numTextures);
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/**
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* \returns a pointer to a texture if there is one texture never used before.
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* If there are no textures left, nullptr is returned. TextureContainer still owns
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* the texture so no delete should be called on the raw pointer.
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*/
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ghoul::opengl::Texture* getTextureIfFree();
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const TileTextureInitData& tileTextureInitData() const;
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/**
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* \returns the number of textures in this TextureContainer
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*/
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size_t size() const;
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private:
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std::vector<std::unique_ptr<ghoul::opengl::Texture>> _textures;
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const TileTextureInitData _initData;
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size_t _freeTexture;
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size_t _numTextures;
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};
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} // namespace openspace::globebrowsing::cache
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#endif // __OPENSPACE_MODULE_GLOBEBROWSING___TEXTURE_CONTAINER___H__
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