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84 lines
3.0 KiB
84 lines
3.0 KiB
////////////////////////////////////////////////////////////////////////////
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// File: CuTexImage.h
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// Author: Changchang Wu
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// Description : interface for the CuTexImage class.
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// class for storing data in CUDA.
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//
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// Copyright (c) 2011 Changchang Wu (ccwu@cs.washington.edu)
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// and the University of Washington at Seattle
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public
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// License as published by the Free Software Foundation; either
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// Version 3 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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////////////////////////////////////////////////////////////////////////////////
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#ifndef CU_TEX_IMAGE_H
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#define CU_TEX_IMAGE_H
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struct textureReference;
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namespace pba {
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class CuTexImage {
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protected:
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bool _owner;
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void* _cuData;
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unsigned int _numChannel;
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unsigned int _imgWidth;
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unsigned int _imgHeight;
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size_t _numBytes;
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public:
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bool InitTexture(unsigned int width, unsigned int height,
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unsigned int nchannel = 1);
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void SetTexture(void* data, unsigned int width, unsigned int nchannel = 1);
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void BindTexture(textureReference& texRef);
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void BindTexture(textureReference& texRef, int offset, size_t size);
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void BindTexture2(textureReference& texRef1, textureReference& texRef2);
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void BindTexture4(textureReference& texRef1, textureReference& texRef2,
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textureReference& texRef3, textureReference& texRef4);
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int BindTextureX(textureReference& texRef1, textureReference& texRef2,
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textureReference& texRef3, textureReference& texRef4,
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bool force4);
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void SwapData(CuTexImage& src);
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void CopyToHost(void* buf);
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void CopyFromDevice(const void* buf);
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void CopyFromHost(const void* buf);
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void SaveToFile(const char* name);
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void ReleaseData();
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public:
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inline float* data() { return GetRequiredSize() ? ((float*)_cuData) : NULL; }
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inline bool IsValid() { return _cuData != NULL && GetDataSize() > 0; }
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inline unsigned int GetLength() {
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return _imgWidth * _imgHeight * _numChannel;
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}
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inline unsigned int GetImgWidth() { return _imgWidth; }
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inline unsigned int GetImgHeight() { return _imgHeight; }
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inline size_t GetReservedWidth() {
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return _numBytes == 0
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? 0
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: (_numBytes / (_imgHeight * _numChannel * sizeof(float)));
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}
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inline size_t GetDataSize() { return _numBytes == 0 ? 0 : GetRequiredSize(); }
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inline size_t GetRequiredSize() {
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return sizeof(float) * _imgWidth * _imgHeight * _numChannel;
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}
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inline unsigned int IsHugeData() { return (GetLength() - 1) / (1 << 27); }
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public:
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CuTexImage();
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virtual ~CuTexImage();
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};
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} // namespace pba
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#endif // !defined(CU_TEX_IMAGE_H)
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