96 lines
1.4 KiB
C++
96 lines
1.4 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================//
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#ifndef __FILEIMAGE_H__
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#define __FILEIMAGE_H__
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#ifdef _WIN32
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#pragma once
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#endif
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#include <stdio.h>
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typedef void *FileHandle_t;
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class FileImageStream
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{
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public:
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virtual void Read(void *pOut, int len)=0;
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// Returns true if there were any Read errors.
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// Clears error status.
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virtual bool ErrorStatus()=0;
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};
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// Use to read out of a memory buffer..
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class FileImageStream_Memory : public FileImageStream
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{
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public:
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FileImageStream_Memory(void *pData, int dataLen);
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virtual void Read(void *pOut, int len);
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virtual bool ErrorStatus();
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private:
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unsigned char *m_pData;
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int m_DataLen;
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int m_CurPos;
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bool m_bError;
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};
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// Generic image representation..
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class FileImage
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{
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public:
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FileImage()
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{
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Clear();
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}
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~FileImage()
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{
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Term();
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}
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void Term()
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{
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if(m_pData)
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delete [] m_pData;
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Clear();
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}
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// Clear the structure without deallocating.
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void Clear()
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{
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m_Width = m_Height = 0;
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m_pData = NULL;
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}
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int m_Width, m_Height;
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unsigned char *m_pData;
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};
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// Functions to load/save FileImages.
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bool Load32BitTGA(
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FileImageStream *fp,
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FileImage *pImage);
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void Save32BitTGA(
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FileHandle_t fp,
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FileImage *pImage);
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#endif
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