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ByteMemoryVMatrix.h

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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 1998 Pascal Vincent 00005 // Copyright (C) 1999-2001 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal 00006 // Copyright (C) 2002 Pascal Vincent, Julien Keable, Xavier Saint-Mleux 00007 // 00008 // Redistribution and use in source and binary forms, with or without 00009 // modification, are permitted provided that the following conditions are met: 00010 // 00011 // 1. Redistributions of source code must retain the above copyright 00012 // notice, this list of conditions and the following disclaimer. 00013 // 00014 // 2. Redistributions in binary form must reproduce the above copyright 00015 // notice, this list of conditions and the following disclaimer in the 00016 // documentation and/or other materials provided with the distribution. 00017 // 00018 // 3. The name of the authors may not be used to endorse or promote 00019 // products derived from this software without specific prior written 00020 // permission. 00021 // 00022 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00023 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00024 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00025 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00027 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00028 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00029 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00030 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00031 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00033 // This file is part of the PLearn library. For more information on the PLearn 00034 // library, go to the PLearn Web site at www.plearn.org 00035 00036 00037 /* ******************************************************* 00038 * $Id: ByteMemoryVMatrix.h,v 1.4 2004/04/05 22:48:12 morinf Exp $ 00039 ******************************************************* */ 00040 00041 00044 #ifndef ByteMemoryVMatrix_INC 00045 #define ByteMemoryVMatrix_INC 00046 00047 #include "VMat.h" 00048 00049 namespace PLearn { 00050 using namespace std; 00051 00052 00053 class ByteMemoryVMatrix: public VMatrix 00054 { 00055 typedef VMatrix inherited; 00056 00057 protected: 00058 unsigned char* data; 00059 Vec scale; 00060 Vec offset_; 00061 00062 public: 00063 // ****************** 00064 // * Constructors * 00065 // ****************** 00066 ByteMemoryVMatrix(); 00067 00068 ByteMemoryVMatrix(unsigned char* data,int the_length,int the_width, double scaling_factor=1.0, double offset_=0.0); 00069 ByteMemoryVMatrix(unsigned char* data,int the_length,int the_width, Vec scale); 00070 ByteMemoryVMatrix(unsigned char* data,int the_length,int the_width, Vec scale, Vec offset_); 00071 00072 PLEARN_DECLARE_OBJECT(ByteMemoryVMatrix); 00073 00074 virtual real get(int i, int j) const; 00075 virtual void getSubRow(int i, int j, Vec v) const; 00076 00077 private: 00078 }; 00079 00080 DECLARE_OBJECT_PTR(ByteMemoryVMatrix); 00081 00082 } // end of namespcae PLearn 00083 #endif

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