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36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
#ifndef COMPONENTS_TERRAIN_BUFFERCACHE_H
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#define COMPONENTS_TERRAIN_BUFFERCACHE_H
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#include <OgreHardwareIndexBuffer.h>
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#include <OgreHardwareVertexBuffer.h>
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#include <map>
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namespace Terrain
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{
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/// @brief Implements creation and caching of vertex buffers for terrain chunks.
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class BufferCache
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{
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public:
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BufferCache(unsigned int numVerts) : mNumVerts(numVerts) {}
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/// @param flags first 4*4 bits are LOD deltas on each edge, respectively (4 bits each)
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/// next 4 bits are LOD level of the index buffer (LOD 0 = don't omit any vertices)
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Ogre::HardwareIndexBufferSharedPtr getIndexBuffer (int flags);
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Ogre::HardwareVertexBufferSharedPtr getUVBuffer ();
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private:
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// Index buffers are shared across terrain batches where possible. There is one index buffer for each
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// combination of LOD deltas and index buffer LOD we may need.
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std::map<int, Ogre::HardwareIndexBufferSharedPtr> mIndexBufferMap;
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std::map<int, Ogre::HardwareVertexBufferSharedPtr> mUvBufferMap;
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unsigned int mNumVerts;
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};
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}
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#endif
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