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comparison data/fft/FFTFileCacheReader.h @ 555:8accc7969c1c

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* Some steps to avoid backward seeks in MatrixFile in common use cases
author Chris Cannam
date Mon, 09 Feb 2009 11:38:08 +0000
parents 3cc4b7cd2aa5
children 59e7fe1b1003
comparison
equal deleted inserted replaced
554:60482f13e627 555:8accc7969c1c
48 48
49 protected: 49 protected:
50 mutable char *m_readbuf; 50 mutable char *m_readbuf;
51 mutable size_t m_readbufCol; 51 mutable size_t m_readbufCol;
52 mutable size_t m_readbufWidth; 52 mutable size_t m_readbufWidth;
53 mutable bool m_readbufGood;
53 54
54 float getFromReadBufStandard(size_t x, size_t y) const { 55 float getFromReadBufStandard(size_t x, size_t y) const {
55 float v; 56 float v;
56 if (m_readbuf && 57 if (m_readbuf &&
57 (m_readbufCol == x || (m_readbufWidth > 1 && m_readbufCol+1 == x))) { 58 (m_readbufCol == x || (m_readbufWidth > 1 && m_readbufCol+1 == x))) {