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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#ifndef MANGLE_STREAM_OGRECLIENT_H
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#define MANGLE_STREAM_OGRECLIENT_H
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#include <OgreDataStream.h>
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#include <assert.h>
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#include "../stream.hpp"
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namespace Mangle {
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namespace Stream {
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/** An OGRE DataStream that wraps a Mangle::Stream input.
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This has been built and tested against OGRE 1.6.2. You might have
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to make your own modifications if you're working with newer (or
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older) versions.
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*/
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class Mangle2OgreStream : public Ogre::DataStream
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{
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StreamPtr inp;
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void init()
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{
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// Get the size, if possible
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if(inp->hasSize)
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mSize = inp->size();
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// Allow writing if inp supports it
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if(inp->isWritable)
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mAccess |= Ogre::DataStream::WRITE;
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}
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public:
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/// Constructor without name
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Mangle2OgreStream(StreamPtr _inp)
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: inp(_inp) { init(); }
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/// Constructor for a named data stream
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Mangle2OgreStream(const Ogre::String &name, StreamPtr _inp)
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: Ogre::DataStream(name), inp(_inp) { init(); }
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// Only implement the DataStream functions we have to implement
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size_t read(void *buf, size_t count)
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{ return inp->read(buf,count); }
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size_t write(const void *buf, size_t count)
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{ assert(inp->isWritable); return inp->write(buf,count); }
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void skip(long count)
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{
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assert(inp->isSeekable && inp->hasPosition);
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inp->seek(inp->tell() + count);
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}
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void seek(size_t pos)
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{ assert(inp->isSeekable); inp->seek(pos); }
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size_t tell() const
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{ assert(inp->hasPosition); return inp->tell(); }
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bool eof() const { return inp->eof(); }
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/// Does nothing
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void close() {}
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};
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}} // namespaces
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#endif
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